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v0.8.1.0 Release

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v0.8.1.0 Release
This commit is contained in:
jdsouza90
2022-09-20 09:59:34 -07:00
parent 3bd2be62a4
commit cf68600c4f
691 changed files with 181019 additions and 22147 deletions
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167
samples/BodyTrack/BodyEngine.cpp
View File

@@ -110,12 +110,21 @@ BodyEngine::Err BodyEngine::createKeyPointDetectionFeature(const char* modelPath
nvErr = NvAR_SetU32(keyPointDetectHandle, NvAR_Parameter_Config(Temporal), bStabilizeBody);
BAIL_IF_CVERR(nvErr, err, BodyEngine::Err::errParameter);
nvErr = NvAR_SetF32(keyPointDetectHandle, NvAR_Parameter_Config(FocalLength), bFocalLength);
BAIL_IF_CVERR(nvErr, err, BodyEngine::Err::errParameter);
nvErr = NvAR_SetF32(keyPointDetectHandle, NvAR_Parameter_Config(UseCudaGraph), bUseCudaGraph);
BAIL_IF_CVERR(nvErr, err, BodyEngine::Err::errParameter);
#if NV_MULTI_OBJECT_TRACKER
nvErr = NvAR_SetF32(keyPointDetectHandle, NvAR_Parameter_Config(TrackPeople), bEnablePeopleTracking);
BAIL_IF_CVERR(nvErr, err, BodyEngine::Err::errParameter);
nvErr = NvAR_SetU32(keyPointDetectHandle, NvAR_Parameter_Config(ShadowTrackingAge), shadowTrackingAge);
BAIL_IF_CVERR(nvErr, err, BodyEngine::Err::errParameter);
nvErr = NvAR_SetU32(keyPointDetectHandle, NvAR_Parameter_Config(ProbationAge), probationAge);
BAIL_IF_CVERR(nvErr, err, BodyEngine::Err::errParameter);
nvErr = NvAR_SetU32(keyPointDetectHandle, NvAR_Parameter_Config(MaxTargetsTracked), maxTargetsTracked);
BAIL_IF_CVERR(nvErr, err, BodyEngine::Err::errParameter);
#endif
nvErr = NvAR_Load(keyPointDetectHandle);
BAIL_IF_CVERR(nvErr, err, BodyEngine::Err::errInitialization);
@@ -176,18 +185,23 @@ BodyEngine::Err BodyEngine::initKeyPointDetectionIOParams(NvCVImage* inBuf) {
NvCV_Status nvErr = NVCV_SUCCESS;
BodyEngine::Err err = BodyEngine::Err::errNone;
uint output_bbox_size;
#if NV_MULTI_OBJECT_TRACKER
uint output_tracking_bbox_size;
#endif
nvErr = NvAR_SetObject(keyPointDetectHandle, NvAR_Parameter_Input(Image), inBuf, sizeof(NvCVImage));
BAIL_IF_CVERR(nvErr, err, BodyEngine::Err::errParameter);
nvErr = NvAR_SetF32(keyPointDetectHandle, NvAR_Parameter_Input(FocalLength), bFocalLength);
BAIL_IF_CVERR(nvErr, err, BodyEngine::Err::errParameter);
nvErr = NvAR_GetU32(keyPointDetectHandle, NvAR_Parameter_Config(NumKeyPoints), &numKeyPoints);
BAIL_IF_CVERR(nvErr, err, BodyEngine::Err::errParameter);
keypoints.assign(batchSize * numKeyPoints, {0.f, 0.f});
keypoints3D.assign(batchSize * numKeyPoints, {0.f, 0.f, 0.f});
jointAngles.assign(batchSize * numKeyPoints, {0.f, 0.f, 0.f, 1.f});
keypoints.assign(batchSize * numKeyPoints, { 0.f, 0.f });
keypoints3D.assign(batchSize * numKeyPoints, { 0.f, 0.f, 0.f });
jointAngles.assign(batchSize * numKeyPoints, { 0.f, 0.f, 0.f, 1.f });
keypoints_confidence.assign(batchSize * numKeyPoints, 0.f);
referencePose.assign(numKeyPoints, {0.f, 0.f, 0.f});
referencePose.assign(numKeyPoints, { 0.f, 0.f, 0.f });
const void* pReferencePose;
nvErr = NvAR_GetObject(keyPointDetectHandle, NvAR_Parameter_Config(ReferencePose), &pReferencePose,
@@ -208,19 +222,47 @@ BodyEngine::Err BodyEngine::initKeyPointDetectionIOParams(NvCVImage* inBuf) {
BAIL_IF_CVERR(nvErr, err, BodyEngine::Err::errParameter);
nvErr = NvAR_SetF32Array(keyPointDetectHandle, NvAR_Parameter_Output(KeyPointsConfidence),
keypoints_confidence.data(), batchSize * numKeyPoints);
keypoints_confidence.data(), sizeof(float));
BAIL_IF_CVERR(nvErr, err, BodyEngine::Err::errParameter);
output_bbox_size = batchSize;
if (!bStabilizeBody) output_bbox_size = 25;
output_bbox_data.assign(output_bbox_size, {0.f, 0.f, 0.f, 0.f});
#if NV_MULTI_OBJECT_TRACKER
if (bEnablePeopleTracking) {
output_tracking_bbox_size = maxTargetsTracked;
output_tracking_bbox_data.assign(output_tracking_bbox_size, { 0.f, 0.f, 0.f, 0.f, 0 });
output_tracking_bboxes.boxes = output_tracking_bbox_data.data();
output_tracking_bboxes.max_boxes = (uint8_t)output_tracking_bbox_size;
output_tracking_bboxes.num_boxes = 0;
nvErr =
NvAR_SetObject(keyPointDetectHandle, NvAR_Parameter_Output(TrackingBoundingBoxes), &output_tracking_bboxes, sizeof(NvAR_TrackingBBoxes));
BAIL_IF_CVERR(nvErr, err, BodyEngine::Err::errParameter);
}
else {
output_bbox_data.assign(25, { 0.f, 0.f, 0.f, 0.f });
output_bbox_conf_data.assign(25, 0.f);
output_bboxes.boxes = output_bbox_data.data();
output_bboxes.max_boxes = (uint8_t)output_bbox_data.size();
output_bboxes.num_boxes = 0;
nvErr = NvAR_SetObject(keyPointDetectHandle, NvAR_Parameter_Output(BoundingBoxes), &output_bboxes, sizeof(NvAR_BBoxes));
BAIL_IF_CVERR(nvErr, err, BodyEngine::Err::errParameter);
nvErr = NvAR_SetF32Array(keyPointDetectHandle, NvAR_Parameter_Output(BoundingBoxesConfidence),
output_bbox_conf_data.data(), output_bboxes.max_boxes);
BAIL_IF_CVERR(nvErr, err, BodyEngine::Err::errParameter);
}
#else
output_bbox_data.assign(25, { 0.f, 0.f, 0.f, 0.f });
output_bbox_conf_data.assign(25, 0.f);
output_bboxes.boxes = output_bbox_data.data();
output_bboxes.max_boxes = (uint8_t)output_bbox_size;
output_bboxes.num_boxes = (uint8_t)output_bbox_size;
nvErr =
NvAR_SetObject(keyPointDetectHandle, NvAR_Parameter_Output(BoundingBoxes), &output_bboxes, sizeof(NvAR_BBoxes));
output_bboxes.max_boxes = (uint8_t)output_bbox_data.size();
output_bboxes.num_boxes = 0;
nvErr = NvAR_SetObject(keyPointDetectHandle, NvAR_Parameter_Output(BoundingBoxes), &output_bboxes, sizeof(NvAR_BBoxes));
BAIL_IF_CVERR(nvErr, err, BodyEngine::Err::errParameter);
nvErr = NvAR_SetF32Array(keyPointDetectHandle, NvAR_Parameter_Output(BoundingBoxesConfidence),
output_bbox_conf_data.data(), output_bboxes.max_boxes);
BAIL_IF_CVERR(nvErr, err, BodyEngine::Err::errParameter);
#endif
bail:
return err;
}
@@ -262,6 +304,9 @@ void BodyEngine::releaseBodyDetectionIOParams() {
void BodyEngine::releaseKeyPointDetectionIOParams() {
NvCVImage_Dealloc(&inputImageBuffer);
if (!output_bbox_data.empty()) output_bbox_data.clear();
#if NV_MULTI_OBJECT_TRACKER
if (!output_tracking_bbox_data.empty()) output_tracking_bbox_data.clear();
#endif
if (!keypoints.empty()) keypoints.clear();
if (!keypoints3D.empty()) keypoints3D.clear();
if (!jointAngles.empty()) jointAngles.clear();
@@ -338,21 +383,6 @@ void BodyEngine::enlargeAndSquarifyImageBox(float enlarge, NvAR_Rect& box, int F
std::cout << "[bodypose] > NvAR_Run(keyPointDetectHandle): " << duration.count() << " microseconds" << std::endl;
#endif
if (getAverageKeyPointsConfidence() < confidenceThreshold) {
return NVCV_ERR_GENERAL;
} else {
NvAR_Point2f *pt, *endPt;
int i = 0;
for (endPt = (pt = getKeyPoints()) + numKeyPoints; pt != endPt; ++pt, i += 2) {
for (int j = 1; j < batchSize; j++) {
pt->x += pt[j * numKeyPoints].x;
pt->y += pt[j * numKeyPoints].y;
}
// average batch of inferences to generate final result keypoints
pt->x /= batchSize;
pt->y /= batchSize;
}
}
#ifdef DEBUG_PERF_RUNTIME
end = std::chrono::high_resolution_clock::now();
duration = std::chrono::duration_cast<std::chrono::microseconds>(end - start);
@@ -367,17 +397,21 @@ NvAR_Point3f* BodyEngine::getKeyPoints3D() { return keypoints3D.data(); }
NvAR_Quaternion* BodyEngine::getJointAngles() { return jointAngles.data(); }
NvAR_BBoxes* BodyEngine::getBBoxes(){ return &output_bboxes; }
#if NV_MULTI_OBJECT_TRACKER
NvAR_TrackingBBoxes* BodyEngine::getTrackingBBoxes() { return &output_tracking_bboxes; }
#endif
float* BodyEngine::getKeyPointsConfidence() { return keypoints_confidence.data(); }
float BodyEngine::getAverageKeyPointsConfidence() {
float average_confidence = 0.0f;
float* keypoints_confidence_all = getKeyPointsConfidence();
for (int i = 0; i < batchSize; i++) {
for (unsigned int j = 0; j < numKeyPoints; j++) {
for (int i = 0; i < output_bboxes.num_boxes; i++) {
for (unsigned int j = 0; j < numKeyPoints; j++) {
average_confidence += keypoints_confidence_all[i * numKeyPoints + j];
}
}
average_confidence /= batchSize * numKeyPoints;
average_confidence /= output_bboxes.num_boxes * numKeyPoints;
return average_confidence;
}
@@ -413,7 +447,7 @@ unsigned BodyEngine::acquireBodyBox(cv::Mat& src, NvAR_Rect& bodyBox, int varian
}
unsigned BodyEngine::acquireBodyBoxAndKeyPoints(cv::Mat& src, NvAR_Point2f* refMarks, NvAR_Point3f* refKeyPoints3D,
NvAR_Quaternion* refJointAngles, NvAR_Rect& bodyBox, int /*variant*/) {
NvAR_Quaternion* refJointAngles, NvAR_BBoxes* refBodyBoxes, int /*variant*/) {
unsigned n = 0;
NvCVImage fxSrcChunkyCPU;
(void)NVWrapperForCVMat(&src, &fxSrcChunkyCPU);
@@ -426,14 +460,15 @@ unsigned BodyEngine::acquireBodyBoxAndKeyPoints(cv::Mat& src, NvAR_Point2f* refM
auto start = std::chrono::high_resolution_clock::now();
#endif
if (findKeyPoints() != NVCV_SUCCESS) return 0;
bodyBox = output_bboxes.boxes[0];
memcpy(refBodyBoxes, getBBoxes(), sizeof(NvAR_BBoxes) );
n = 1;
#ifdef DEBUG_PERF_RUNTIME
auto start2 = std::chrono::high_resolution_clock::now();
#endif
memcpy(refMarks, getKeyPoints(), sizeof(NvAR_Point2f) * numKeyPoints);
memcpy(refKeyPoints3D, getKeyPoints3D(), sizeof(NvAR_Point3f) * numKeyPoints);
memcpy(refJointAngles, getJointAngles(), sizeof(NvAR_Quaternion) * numKeyPoints);
memcpy(refMarks, getKeyPoints(), sizeof(NvAR_Point2f) * numKeyPoints * batchSize);
memcpy(refKeyPoints3D, getKeyPoints3D(), sizeof(NvAR_Point3f) * numKeyPoints * batchSize);
memcpy(refJointAngles, getJointAngles(), sizeof(NvAR_Quaternion) * numKeyPoints * batchSize);
#ifdef DEBUG_PERF_RUNTIME
auto end = std::chrono::high_resolution_clock::now();
@@ -446,13 +481,63 @@ unsigned BodyEngine::acquireBodyBoxAndKeyPoints(cv::Mat& src, NvAR_Point2f* refM
#endif
return n;
}
#if NV_MULTI_OBJECT_TRACKER
unsigned BodyEngine::acquireBodyBoxAndKeyPoints(cv::Mat& src, NvAR_Point2f* refMarks, NvAR_Point3f* refKeyPoints3D,
NvAR_Quaternion* refJointAngles, NvAR_TrackingBBoxes* refBodyBoxes, int /*variant*/) {
unsigned n = 0;
NvCVImage fxSrcChunkyCPU;
(void)NVWrapperForCVMat(&src, &fxSrcChunkyCPU);
NvCV_Status cvErr = NvCVImage_Transfer(&fxSrcChunkyCPU, &inputImageBuffer, 1.0f, stream, &tmpImage);
if (NVCV_SUCCESS != cvErr) {
return n;
}
#ifdef DEBUG_PERF_RUNTIME
auto start = std::chrono::high_resolution_clock::now();
#endif
if (findKeyPoints() != NVCV_SUCCESS) return 0;
memcpy(refBodyBoxes, getTrackingBBoxes(), sizeof(NvAR_TrackingBBoxes));
n = 1;
#ifdef DEBUG_PERF_RUNTIME
auto start2 = std::chrono::high_resolution_clock::now();
#endif
memcpy(refMarks, getKeyPoints(), sizeof(NvAR_Point2f) * numKeyPoints * batchSize);
memcpy(refKeyPoints3D, getKeyPoints3D(), sizeof(NvAR_Point3f) * numKeyPoints * batchSize);
memcpy(refJointAngles, getJointAngles(), sizeof(NvAR_Quaternion) * numKeyPoints * batchSize);
#ifdef DEBUG_PERF_RUNTIME
auto end = std::chrono::high_resolution_clock::now();
auto duration3 = std::chrono::duration_cast<std::chrono::microseconds>(start2 - start);
std::cout << "[bodypose] run findKeyPoints(): " << duration3.count() << " microseconds" << std::endl;
auto duration2 = std::chrono::duration_cast<std::chrono::microseconds>(end - start2);
std::cout << "[bodypose] keypoint copy time: " << duration2.count() << " microseconds" << std::endl;
auto duration = std::chrono::duration_cast<std::chrono::microseconds>(end - start);
std::cout << "[bodypose] end-to-end time: " << duration.count() << " microseconds" << std::endl;
#endif
return n;
}
#endif
void BodyEngine::setBodyStabilization(bool _bStabilizeBody) { bStabilizeBody = _bStabilizeBody; }
void BodyEngine::setMode(int _mode) { nvARMode = _mode; }
void BodyEngine::setFocalLength(float _bFocalLength) { bFocalLength = _bFocalLength; }
BodyEngine::Err BodyEngine::setFocalLength(float _bFocalLength) {
bFocalLength = _bFocalLength;
NvCV_Status nvErr = NvAR_SetF32(keyPointDetectHandle, NvAR_Parameter_Input(FocalLength), bFocalLength);
BodyEngine::Err err = BodyEngine::Err::errNone;
if (nvErr != NVCV_SUCCESS) err = BodyEngine::Err::errParameter;
return err;
}
void BodyEngine::useCudaGraph(bool _bUseCudaGraph) { bUseCudaGraph = _bUseCudaGraph; }
#if NV_MULTI_OBJECT_TRACKER
void BodyEngine::enablePeopleTracking(bool _bEnablePeopleTracking, unsigned int _shadowTrackingAge, unsigned int _probationAge, unsigned int _maxTargetsTracked) {
bEnablePeopleTracking = _bEnablePeopleTracking;
shadowTrackingAge = _shadowTrackingAge;
probationAge = _probationAge;
maxTargetsTracked = _maxTargetsTracked;
}
#endif
void BodyEngine::setAppMode(BodyEngine::mode _mode) { appMode = _mode; }

33
samples/BodyTrack/BodyEngine.h
View File

@@ -141,17 +141,28 @@ class BodyEngine {
NvAR_Point2f* getKeyPoints();
NvAR_Point3f* getKeyPoints3D();
NvAR_Quaternion* getJointAngles();
NvAR_BBoxes* getBBoxes();
#if NV_MULTI_OBJECT_TRACKER
NvAR_TrackingBBoxes* getTrackingBBoxes();
#endif
float* getKeyPointsConfidence();
float getAverageKeyPointsConfidence();
void enlargeAndSquarifyImageBox(float enlarge, NvAR_Rect& box, int FLAG_variant);
unsigned findLargestBodyBox(NvAR_Rect& bodyBox, int variant = 0);
unsigned acquireBodyBox(cv::Mat& src, NvAR_Rect& bodyBox, int variant = 0);
unsigned acquireBodyBoxAndKeyPoints(cv::Mat& src, NvAR_Point2f* refMarks, NvAR_Point3f* refKeyPoints3D,
NvAR_Quaternion* refJointAngles, NvAR_Rect& bodyBox, int variant = 0);
NvAR_Quaternion* refJointAngles, NvAR_BBoxes* refBodyBoxes, int variant = 0);
#if NV_MULTI_OBJECT_TRACKER
unsigned acquireBodyBoxAndKeyPoints(cv::Mat& src, NvAR_Point2f* refMarks, NvAR_Point3f* refKeyPoints3D,
NvAR_Quaternion* refJointAngles, NvAR_TrackingBBoxes* refBodyBoxes, int variant = 0);
#endif
void setBodyStabilization(bool);
void setMode(int);
void setFocalLength(float);
BodyEngine::Err setFocalLength(float);
void useCudaGraph(bool); // Using cuda graph improves model latency
#if NV_MULTI_OBJECT_TRACKER
void enablePeopleTracking(bool _bEnablePeopleTracking, unsigned int _shadowTrackingAge = 90, unsigned int _probationAge = 10, unsigned int _maxTargetsTracked = 30);
#endif
int getNumKeyPoints() { return numKeyPoints; }
std::vector<NvAR_Point3f> getReferencePose() { return referencePose; }
@@ -165,6 +176,11 @@ class BodyEngine {
std::vector<NvAR_Rect> output_bbox_data;
std::vector<float> output_bbox_conf_data;
NvAR_BBoxes output_bboxes{};
#if NV_MULTI_OBJECT_TRACKER
NvAR_TrackingBBoxes output_tracking_bboxes{};
std::vector<NvAR_TrackingBBox> output_tracking_bbox_data;
#endif
int batchSize;
int nvARMode;
std::mt19937 ran;
@@ -178,12 +194,23 @@ class BodyEngine {
char *bdOTAModelPath, *ldOTAModelPath;
float bFocalLength;
bool bUseCudaGraph;
#if NV_MULTI_OBJECT_TRACKER
bool bEnablePeopleTracking;
unsigned int shadowTrackingAge;
unsigned int probationAge;
unsigned int maxTargetsTracked;
#endif
BodyEngine() {
batchSize = 1;
nvARMode = 1;
bStabilizeBody = true;
bUseCudaGraph = true;
#if NV_MULTI_OBJECT_TRACKER
bEnablePeopleTracking = false;
shadowTrackingAge = 90;
probationAge = 10;
maxTargetsTracked = 30;
#endif
bFocalLength = FOCAL_LENGTH_DEFAULT;
confidenceThreshold = 0.f;
appMode = keyPointDetection;

532
samples/BodyTrack/BodyTrack.cpp
View File

@@ -37,6 +37,13 @@
#include "nvAR_defs.h"
#include "opencv2/opencv.hpp"
#if CV_MAJOR_VERSION >= 4
#define CV_CAP_PROP_FRAME_WIDTH cv::CAP_PROP_FRAME_WIDTH
#define CV_CAP_PROP_FRAME_HEIGHT cv::CAP_PROP_FRAME_HEIGHT
#define CV_CAP_PROP_FPS cv::CAP_PROP_FPS
#define CV_CAP_PROP_FRAME_COUNT cv::CAP_PROP_FRAME_COUNT
#endif
#ifndef M_PI
#define M_PI 3.1415926535897932385
#endif /* M_PI */
@@ -62,6 +69,8 @@
#define DEBUG_RUNTIME
#define PEOPLE_TRACKING_BATCH_SIZE 8
/********************************************************************************
* Command-line arguments
********************************************************************************/
@@ -71,7 +80,10 @@ bool FLAG_debug = false, FLAG_verbose = false, FLAG_temporal = true, FLAG_captur
std::string FLAG_outDir, FLAG_inFile, FLAG_outFile, FLAG_modelPath, FLAG_captureCodec = "avc1",
FLAG_camRes, FLAG_bodyModel;
unsigned int FLAG_appMode = 1, FLAG_mode = 1, FLAG_camindex=0;
#if NV_MULTI_OBJECT_TRACKER
bool FLAG_enablePeopleTracking = false;
unsigned int FLAG_shadowTrackingAge = 90, FLAG_probationAge = 10, FLAG_maxTargetsTracked = 30;
#endif
/********************************************************************************
* Usage
********************************************************************************/
@@ -95,6 +107,12 @@ static void Usage() {
" --model_path=<path> specify the directory containing the TRT models\n"
" --mode[=0|1] Model Mode. 0: High Quality, 1: High Performance\n"
" --app_mode[=(0|1)] App mode. 0: Body detection, 1: Keypoint detection "
#if NV_MULTI_OBJECT_TRACKER
" --enable_people_tracking[=(0|1)] Enables people tracking "
" --shadow_tracking_age Shadow Tracking Age after which tracking information of a person is removed. Measured in frames"
" --probation_age Length of probationary period. Measured in frames"
" --max_targets_tracked Maximum number of targets to be tracked "
#endif
"(Default).\n"
" --benchmarks[=<pattern>] run benchmarks\n");
}
@@ -194,6 +212,12 @@ static int ParseMyArgs(int argc, char **argv) {
GetFlagArgVal("mode", arg, &FLAG_mode) ||
GetFlagArgVal("camindex", arg, &FLAG_camindex) ||
GetFlagArgVal("use_cuda_graph", arg, &FLAG_useCudaGraph) ||
#if NV_MULTI_OBJECT_TRACKER
GetFlagArgVal("enable_people_tracking", arg, &FLAG_enablePeopleTracking) ||
GetFlagArgVal("shadow_tracking_age", arg, &FLAG_shadowTrackingAge) ||
GetFlagArgVal("probation_age", arg, &FLAG_probationAge) ||
GetFlagArgVal("max_targets_tracked", arg, &FLAG_maxTargetsTracked) ||
#endif
GetFlagArgVal("temporal", arg, &FLAG_temporal))) {
continue;
} else if (GetFlagArgVal("help", arg, &help)) {
@@ -231,10 +255,11 @@ enum {
#if 1
class MyTimer {
public:
void start() { t0 = std::chrono::high_resolution_clock::now(); } /**< Start the timer. */
void pause() { dt = std::chrono::high_resolution_clock::now() - t0; } /**< Pause the timer. */
void resume() { t0 = std::chrono::high_resolution_clock::now() - dt; } /**< Resume the timer. */
void stop() { pause(); } /**< Stop the timer. */
MyTimer() { dt = dt.zero(); } /**< Clear the duration to 0. */
void start() { t0 = std::chrono::high_resolution_clock::now(); } /**< Start the timer. */
void pause() { dt = std::chrono::high_resolution_clock::now() - t0; } /**< Pause the timer. */
void resume() { t0 = std::chrono::high_resolution_clock::now() - dt; } /**< Resume the timer. */
void stop() { pause(); } /**< Stop the timer. */
double elapsedTimeFloat() const {
return std::chrono::duration<double>(dt).count();
} /**< Report the elapsed time as a float. */
@@ -310,14 +335,23 @@ class DoApp {
Err run();
void drawFPS(cv::Mat &img);
void DrawBBoxes(const cv::Mat &src, NvAR_Rect *output_bbox);
//TODO: Look into ways of simplifying the app for these functions.
void DrawBBoxes(const cv::Mat &src, NvAR_BBoxes *output_bbox);
void DrawBBoxes(const cv::Mat &src, NvAR_TrackingBBoxes *output_bbox);
void DrawKeyPointLine(const cv::Mat& src, NvAR_Point2f* keypoints, int point1, int point2, int color);
void DrawKeyPointsAndEdges(const cv::Mat &src, NvAR_Point2f *keypoints, int numKeyPoints, NvAR_Rect* output_bbox);
void DrawKeyPointsAndEdges(const cv::Mat &src, NvAR_Point2f *keypoints, int numKeyPoints, NvAR_BBoxes* output_bbox);
void drawKalmanStatus(cv::Mat &img);
void drawVideoCaptureStatus(cv::Mat &img);
void processKey(int key);
void writeVideoAndEstResults(const cv::Mat &frame, NvAR_BBoxes output_bboxes, NvAR_Point2f *keypoints = NULL);
void writeFrameAndEstResults(const cv::Mat &frame, NvAR_BBoxes output_bboxes, NvAR_Point2f *keypoints = NULL);
void writeEstResults(std::ofstream &outputFile, NvAR_BBoxes output_bboxes, NvAR_Point2f *keypoints = NULL);
#if NV_MULTI_OBJECT_TRACKER
void DrawKeyPointsAndEdges(const cv::Mat &src, NvAR_Point2f *keypoints, int numKeyPoints, NvAR_TrackingBBoxes* output_bbox);
void writeVideoAndEstResults(const cv::Mat &frame, NvAR_TrackingBBoxes output_bboxes, NvAR_Point2f *keypoints = NULL);
void writeFrameAndEstResults(const cv::Mat &frame, NvAR_TrackingBBoxes output_bboxes, NvAR_Point2f *keypoints = NULL);
void writeEstResults(std::ofstream &outputFile, NvAR_TrackingBBoxes output_bboxes, NvAR_Point2f *keypoints = NULL);
#endif
void getFPS();
static const char *errorStringFromCode(Err code);
@@ -337,6 +371,10 @@ class DoApp {
float expr[6];
bool drawVisualization, showFPS, captureVideo, captureFrame;
float scaleOffsetXY[4];
#if NV_MULTI_OBJECT_TRACKER
std::vector<cv::Scalar> colorCodes = { cv::Scalar(255,255,255) };
const unsigned int peopleTrackingBatchSize = 8; // Batch Size has to be 8 when people tracking is enabled
#endif
};
DoApp *gApp = nullptr;
@@ -347,13 +385,17 @@ void DoApp::processKey(int key) {
case '2':
body_ar_engine.destroyFeatures();
body_ar_engine.setAppMode(BodyEngine::mode::keyPointDetection);
body_ar_engine.createFeatures(FLAG_modelPath.c_str());
#if NV_MULTI_OBJECT_TRACKER
if (FLAG_enablePeopleTracking) body_ar_engine.createFeatures(FLAG_modelPath.c_str());
else
#endif
body_ar_engine.createFeatures(FLAG_modelPath.c_str(), 1);
body_ar_engine.initFeatureIOParams();
break;
case '1':
body_ar_engine.destroyFeatures();
body_ar_engine.setAppMode(BodyEngine::mode::bodyDetection);
body_ar_engine.createFeatures(FLAG_modelPath.c_str());
body_ar_engine.createFeatures(FLAG_modelPath.c_str(), 1);
body_ar_engine.initFeatureIOParams();
break;
case 'C':
@@ -381,8 +423,11 @@ DoApp::Err DoApp::initBodyEngine(const char *modelPath) {
if (!cap.isOpened()) return errVideo;
int numKeyPoints = body_ar_engine.getNumKeyPoints();
nvErr = body_ar_engine.createFeatures(modelPath);
#if NV_MULTI_OBJECT_TRACKER
if (FLAG_enablePeopleTracking) nvErr = body_ar_engine.createFeatures(modelPath, peopleTrackingBatchSize);
else
#endif
nvErr = body_ar_engine.createFeatures(modelPath, 1);
#ifdef DEBUG
detector->setOutputLocation(outputDir);
@@ -425,6 +470,51 @@ void DoApp::DrawBBoxes(const cv::Mat &src, NvAR_Rect *output_bbox) {
if (FLAG_offlineMode) bodyDetectOutputVideo.write(frm);
}
void DoApp::DrawBBoxes(const cv::Mat &src, NvAR_BBoxes *output_bbox) {
cv::Mat frm;
if (FLAG_offlineMode)
frm = src.clone();
else
frm = src;
if (output_bbox) {
for (int i = 0; i < output_bbox->num_boxes; i++) {
auto color = cv::Scalar(255, 255, 255);
cv::rectangle(frm, cv::Point(lround(output_bbox->boxes[i].x), lround(output_bbox->boxes[i].y)),
cv::Point(lround(output_bbox->boxes[i].x + output_bbox->boxes[i].width), lround(output_bbox->boxes[i].y + output_bbox->boxes[i].height)),
cv::Scalar(255, 0, 0), 2);
}
}
if (FLAG_offlineMode) bodyDetectOutputVideo.write(frm);
}
#if NV_MULTI_OBJECT_TRACKER
void DoApp::DrawBBoxes(const cv::Mat &src, NvAR_TrackingBBoxes *output_bbox) {
cv::Mat frm;
if (FLAG_offlineMode)
frm = src.clone();
else
frm = src;
if (output_bbox) {
for (int i = 0; i < output_bbox->num_boxes; i++) {
if (colorCodes.size() <= output_bbox->boxes[i].tracking_id)
colorCodes.push_back(cv::Scalar(rand() & 0xFF, rand() & 0xFF, rand() & 0xFF));
auto color = colorCodes[output_bbox->boxes[i].tracking_id];
std::string text = "ID: " + std::to_string(output_bbox->boxes[i].tracking_id);
cv::rectangle(frm, cv::Point(lround(output_bbox->boxes[i].bbox.x), lround(output_bbox->boxes[i].bbox.y)),
cv::Point(lround(output_bbox->boxes[i].bbox.x + output_bbox->boxes[i].bbox.width), lround(output_bbox->boxes[i].bbox.y + output_bbox->boxes[i].bbox.height)),
color, 2);
cv::putText(frm, text, cv::Point(lround(output_bbox->boxes[i].bbox.x), lround(output_bbox->boxes[i].bbox.y) - 10), cv::FONT_HERSHEY_SIMPLEX, 0.9, color, 2);
}
}
if (FLAG_offlineMode) bodyDetectOutputVideo.write(frm);
}
#endif
void DoApp::writeVideoAndEstResults(const cv::Mat &frm, NvAR_BBoxes output_bboxes, NvAR_Point2f* keypoints) {
if (captureVideo) {
if (!capturedVideo.isOpened()) {
@@ -469,7 +559,54 @@ void DoApp::writeVideoAndEstResults(const cv::Mat &frm, NvAR_BBoxes output_bboxe
}
}
}
#if NV_MULTI_OBJECT_TRACKER
void DoApp::writeVideoAndEstResults(const cv::Mat &frm, NvAR_TrackingBBoxes output_bboxes, NvAR_Point2f* keypoints) {
if (captureVideo) {
if (!capturedVideo.isOpened()) {
const std::string currentCalendarTime = getCalendarTime();
const std::string capturedOutputFileName = currentCalendarTime + ".mp4";
getFPS();
if (frameTime) {
float fps = (float)(1.0 / frameTime);
capturedVideo.open(capturedOutputFileName, StringToFourcc(FLAG_captureCodec), fps,
cv::Size(frm.cols, frm.rows));
if (!capturedVideo.isOpened()) {
std::cout << "Error: Could not open video: \"" << capturedOutputFileName << "\"\n";
return;
}
if (FLAG_verbose) {
std::cout << "Capturing video started" << std::endl;
}
}
else { // If frameTime is 0.f, returns without writing the frame to the Video
return;
}
const std::string outputsFileName = currentCalendarTime + ".txt";
bodyEngineVideoOutputFile.open(outputsFileName, std::ios_base::out);
if (!bodyEngineVideoOutputFile.is_open()) {
std::cout << "Error: Could not open file: \"" << outputsFileName << "\"\n";
return;
}
std::string keyPointDetectionMode = (keypoints == NULL) ? "Off" : "On";
bodyEngineVideoOutputFile << "// BodyDetectOn, KeyPointDetect" << keyPointDetectionMode << "\n ";
bodyEngineVideoOutputFile
<< "// kNumPeople, (bbox_x, bbox_y, bbox_w, bbox_h){ kNumPeople}, kNumLMs, [lm_x, lm_y]{kNumLMs}\n";
}
// Write each frame to the Video
capturedVideo << frm;
writeEstResults(bodyEngineVideoOutputFile, output_bboxes, keypoints);
}
else {
if (capturedVideo.isOpened()) {
if (FLAG_verbose) {
std::cout << "Capturing video ended" << std::endl;
}
capturedVideo.release();
if (bodyEngineVideoOutputFile.is_open()) bodyEngineVideoOutputFile.close();
}
}
}
#endif
void DoApp::writeEstResults(std::ofstream &outputFile, NvAR_BBoxes output_bboxes, NvAR_Point2f* keypoints) {
/**
* Output File Format :
@@ -512,7 +649,53 @@ void DoApp::writeEstResults(std::ofstream &outputFile, NvAR_BBoxes output_bboxes
outputFile << "\n";
}
#if NV_MULTI_OBJECT_TRACKER
void DoApp::writeEstResults(std::ofstream &outputFile, NvAR_TrackingBBoxes output_bboxes, NvAR_Point2f* keypoints) {
/**
* Output File Format :
* BodyDetectOn, KeyPointDetectOn
* kNumPeople, (bbox_x, bbox_y, bbox_w, bbox_h){ kNumPeople}, kNumKPs, [j_x, j_y]{kNumKPs}
*/
int bodyDetectOn = (body_ar_engine.appMode == BodyEngine::mode::bodyDetection ||
body_ar_engine.appMode == BodyEngine::mode::keyPointDetection)
? 1
: 0;
int keyPointDetectOn = (body_ar_engine.appMode == BodyEngine::mode::keyPointDetection)
? 1
: 0;
outputFile << bodyDetectOn << "," << keyPointDetectOn << "\n";
if (bodyDetectOn && output_bboxes.num_boxes) {
// Append number of bodies detected in the current frame
outputFile << unsigned(output_bboxes.num_boxes) << ",";
// write outputbboxes to outputFile
for (size_t i = 0; i < output_bboxes.num_boxes; i++) {
int x1 = (int)output_bboxes.boxes[i].bbox.x, y1 = (int)output_bboxes.boxes[i].bbox.y,
width = (int)output_bboxes.boxes[i].bbox.width, height = (int)output_bboxes.boxes[i].bbox.height;
unsigned int tracking_id = output_bboxes.boxes[i].tracking_id;
outputFile << x1 << "," << y1 << "," << width << "," << height << "," << tracking_id << ",";
}
}
else {
outputFile << "0,";
}
if (keyPointDetectOn && output_bboxes.num_boxes) {
int numKeyPoints = body_ar_engine.getNumKeyPoints();
// Append number of keypoints
outputFile << numKeyPoints << ",";
// Append 2 * number of keypoint values
NvAR_Point2f *pt, *endPt;
for (endPt = (pt = (NvAR_Point2f *)keypoints) + numKeyPoints; pt < endPt; ++pt)
outputFile << pt->x << "," << pt->y << ",";
}
else {
outputFile << "0,";
}
outputFile << "\n";
}
#endif
void DoApp::writeFrameAndEstResults(const cv::Mat &frm, NvAR_BBoxes output_bboxes, NvAR_Point2f* keypoints) {
if (captureFrame) {
const std::string currentCalendarTime = getCalendarTime();
@@ -537,28 +720,47 @@ void DoApp::writeFrameAndEstResults(const cv::Mat &frm, NvAR_BBoxes output_bboxe
captureFrame = false;
}
}
#if NV_MULTI_OBJECT_TRACKER
void DoApp::writeFrameAndEstResults(const cv::Mat &frm, NvAR_TrackingBBoxes output_bboxes, NvAR_Point2f* keypoints) {
if (captureFrame) {
const std::string currentCalendarTime = getCalendarTime();
const std::string capturedFrame = currentCalendarTime + ".png";
cv::imwrite(capturedFrame, frm);
if (FLAG_verbose) {
std::cout << "Captured the frame" << std::endl;
}
// Write Body Engine Outputs
const std::string outputFilename = currentCalendarTime + ".txt";
std::ofstream outputFile;
outputFile.open(outputFilename, std::ios_base::out);
if (!outputFile.is_open()) {
std::cout << "Error: Could not open file: \"" << outputFilename << "\"\n";
return;
}
std::string keyPointDetectionMode = (keypoints == NULL) ? "Off" : "On";
outputFile << "// BodyDetectOn, KeyPointDetect" << keyPointDetectionMode << "\n";
outputFile << "// kNumPeople, (bbox_x, bbox_y, bbox_w, bbox_h){ kNumPeople}, kNumLMs, [lm_x, lm_y]{kNumLMs}\n";
writeEstResults(outputFile, output_bboxes, keypoints);
if (outputFile.is_open()) outputFile.close();
captureFrame = false;
}
}
#endif
void DoApp::DrawKeyPointLine(const cv::Mat& src, NvAR_Point2f* keypoints, int point1, int point2, int color) {
NvAR_Point2f point1_pos = *(keypoints + point1);
NvAR_Point2f point2_pos = *(keypoints + point2);
cv::line(src, cv::Point((int)point1_pos.x, (int)point1_pos.y), cv::Point((int)point2_pos.x, (int)point2_pos.y), cv_colors[color], 2);
}
void DoApp::DrawKeyPointsAndEdges(const cv::Mat& src, NvAR_Point2f* keypoints, int numKeyPoints, NvAR_Rect* output_bbox) {
#if NV_MULTI_OBJECT_TRACKER
void DoApp::DrawKeyPointsAndEdges(const cv::Mat& src, NvAR_Point2f* keypoints, int numKeyPoints, NvAR_TrackingBBoxes* output_bbox) {
cv::Mat frm;
if (FLAG_offlineMode)
frm = src.clone();
else
frm = src;
NvAR_Point2f *pt, *endPt;
for (endPt = (pt = (NvAR_Point2f *)keypoints) + numKeyPoints; pt < endPt; ++pt)
cv::circle(frm, cv::Point(lround(pt->x), lround(pt->y)), 4, cv::Scalar(180, 180, 180), -1);
if (output_bbox)
cv::rectangle(frm, cv::Point(lround(output_bbox->x), lround(output_bbox->y)),
cv::Point(lround(output_bbox->x + output_bbox->width), lround(output_bbox->y + output_bbox->height)),
cv::Scalar(255, 0, 0), 2);
NvAR_Point2f* keypointsBatch8 = keypoints;
int pelvis = 0;
int left_hip = 1;
@@ -595,56 +797,187 @@ void DoApp::DrawKeyPointsAndEdges(const cv::Mat& src, NvAR_Point2f* keypoints, i
int left_thumb_tip = 32;
int right_thumb_tip = 33;
// center body
DrawKeyPointLine(frm, keypoints, pelvis, torso, kColorGreen);
DrawKeyPointLine(frm, keypoints, torso, neck, kColorGreen);
DrawKeyPointLine(frm, keypoints, neck, pelvis, kColorGreen);
for (int i = 0; i < body_ar_engine.output_tracking_bboxes.num_boxes; i++) {
// right side
DrawKeyPointLine(frm, keypoints, right_ankle, right_knee, kColorRed);
DrawKeyPointLine(frm, keypoints, right_knee, right_hip, kColorRed);
DrawKeyPointLine(frm, keypoints, right_hip, pelvis, kColorRed);
DrawKeyPointLine(frm, keypoints, right_hip, right_shoulder, kColorRed);
DrawKeyPointLine(frm, keypoints, right_shoulder, right_elbow, kColorRed);
DrawKeyPointLine(frm, keypoints, right_elbow, right_wrist, kColorRed);
DrawKeyPointLine(frm, keypoints, right_shoulder, neck, kColorRed);
keypoints = keypointsBatch8 + (i * 34);
// right side hand and feet
DrawKeyPointLine(frm, keypoints, right_wrist, right_pinky_knuckle, kColorRed);
DrawKeyPointLine(frm, keypoints, right_wrist, right_middle_tip, kColorRed);
DrawKeyPointLine(frm, keypoints, right_wrist, right_index_knuckle, kColorRed);
DrawKeyPointLine(frm, keypoints, right_wrist, right_thumb_tip, kColorRed);
DrawKeyPointLine(frm, keypoints, right_ankle, right_heel, kColorRed);
DrawKeyPointLine(frm, keypoints, right_ankle, right_big_toe, kColorRed);
DrawKeyPointLine(frm, keypoints, right_big_toe, right_small_toe, kColorRed);
for (endPt = (pt = (NvAR_Point2f*)keypoints) + numKeyPoints; pt < endPt; ++pt)
cv::circle(frm, cv::Point(lround(pt->x), lround(pt->y)), 4, cv::Scalar(180, 180, 180), -1);
//left side
DrawKeyPointLine(frm, keypoints, left_ankle, left_knee, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_knee, left_hip, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_hip, pelvis, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_hip, left_shoulder, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_shoulder, left_elbow, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_elbow, left_wrist, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_shoulder, neck, kColorBlue);
if (output_bbox) {
while (colorCodes.size()<= output_bbox->boxes[i].tracking_id)
colorCodes.push_back(cv::Scalar(rand() & 0xFF, rand() & 0xFF, rand() & 0xFF));
auto color = colorCodes[output_bbox->boxes[i].tracking_id];
std::string text = "ID: "+std::to_string(output_bbox->boxes[i].tracking_id);
cv::rectangle(frm, cv::Point(lround(output_bbox->boxes[i].bbox.x), lround(output_bbox->boxes[i].bbox.y)),
cv::Point(lround(output_bbox->boxes[i].bbox.x + output_bbox->boxes[i].bbox.width), lround(output_bbox->boxes[i].bbox.y + output_bbox->boxes[i].bbox.height)),
color, 2);
cv::putText(frm, text, cv::Point(lround(output_bbox->boxes[i].bbox.x), lround(output_bbox->boxes[i].bbox.y) - 10), cv::FONT_HERSHEY_SIMPLEX, 0.5, color, 2);
}
// left side hand and feet
DrawKeyPointLine(frm, keypoints, left_wrist, left_pinky_knuckle, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_wrist, left_middle_tip, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_wrist, left_index_knuckle, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_wrist, left_thumb_tip, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_ankle, left_heel, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_ankle, left_big_toe, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_big_toe, left_small_toe, kColorBlue);
// center body
DrawKeyPointLine(frm, keypoints, pelvis, torso, kColorGreen);
DrawKeyPointLine(frm, keypoints, torso, neck, kColorGreen);
DrawKeyPointLine(frm, keypoints, neck, pelvis, kColorGreen);
// head
DrawKeyPointLine(frm, keypoints, neck, nose, kColorGreen);
DrawKeyPointLine(frm, keypoints, nose, right_eye, kColorGreen);
DrawKeyPointLine(frm, keypoints, right_eye, right_ear, kColorGreen);
DrawKeyPointLine(frm, keypoints, nose, left_eye, kColorGreen);
DrawKeyPointLine(frm, keypoints, left_eye, left_ear, kColorGreen);
// right side
DrawKeyPointLine(frm, keypoints, right_ankle, right_knee, kColorRed);
DrawKeyPointLine(frm, keypoints, right_knee, right_hip, kColorRed);
DrawKeyPointLine(frm, keypoints, right_hip, pelvis, kColorRed);
DrawKeyPointLine(frm, keypoints, right_hip, right_shoulder, kColorRed);
DrawKeyPointLine(frm, keypoints, right_shoulder, right_elbow, kColorRed);
DrawKeyPointLine(frm, keypoints, right_elbow, right_wrist, kColorRed);
DrawKeyPointLine(frm, keypoints, right_shoulder, neck, kColorRed);
// right side hand and feet
DrawKeyPointLine(frm, keypoints, right_wrist, right_pinky_knuckle, kColorRed);
DrawKeyPointLine(frm, keypoints, right_wrist, right_middle_tip, kColorRed);
DrawKeyPointLine(frm, keypoints, right_wrist, right_index_knuckle, kColorRed);
DrawKeyPointLine(frm, keypoints, right_wrist, right_thumb_tip, kColorRed);
DrawKeyPointLine(frm, keypoints, right_ankle, right_heel, kColorRed);
DrawKeyPointLine(frm, keypoints, right_ankle, right_big_toe, kColorRed);
DrawKeyPointLine(frm, keypoints, right_big_toe, right_small_toe, kColorRed);
//left side
DrawKeyPointLine(frm, keypoints, left_ankle, left_knee, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_knee, left_hip, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_hip, pelvis, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_hip, left_shoulder, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_shoulder, left_elbow, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_elbow, left_wrist, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_shoulder, neck, kColorBlue);
// left side hand and feet
DrawKeyPointLine(frm, keypoints, left_wrist, left_pinky_knuckle, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_wrist, left_middle_tip, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_wrist, left_index_knuckle, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_wrist, left_thumb_tip, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_ankle, left_heel, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_ankle, left_big_toe, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_big_toe, left_small_toe, kColorBlue);
// head
DrawKeyPointLine(frm, keypoints, neck, nose, kColorGreen);
DrawKeyPointLine(frm, keypoints, nose, right_eye, kColorGreen);
DrawKeyPointLine(frm, keypoints, right_eye, right_ear, kColorGreen);
DrawKeyPointLine(frm, keypoints, nose, left_eye, kColorGreen);
DrawKeyPointLine(frm, keypoints, left_eye, left_ear, kColorGreen);
}
if (FLAG_offlineMode) keyPointsOutputVideo.write(frm);
}
#endif
void DoApp::DrawKeyPointsAndEdges(const cv::Mat& src, NvAR_Point2f* keypoints, int numKeyPoints, NvAR_BBoxes* output_bbox) {
cv::Mat frm;
if (FLAG_offlineMode)
frm = src.clone();
else
frm = src;
NvAR_Point2f *pt, *endPt;
NvAR_Point2f* keypointsBatch8 = keypoints;
int pelvis = 0;
int left_hip = 1;
int right_hip = 2;
int torso = 3;
int left_knee = 4;
int right_knee = 5;
int neck = 6;
int left_ankle = 7;
int right_ankle = 8;
int left_big_toe = 9;
int right_big_toe = 10;
int left_small_toe = 11;
int right_small_toe = 12;
int left_heel = 13;
int right_heel = 14;
int nose = 15;
int left_eye = 16;
int right_eye = 17;
int left_ear = 18;
int right_ear = 19;
int left_shoulder = 20;
int right_shoulder = 21;
int left_elbow = 22;
int right_elbow = 23;
int left_wrist = 24;
int right_wrist = 25;
int left_pinky_knuckle = 26;
int right_pinky_knuckle = 27;
int left_middle_tip = 28;
int right_middle_tip = 29;
int left_index_knuckle = 30;
int right_index_knuckle = 31;
int left_thumb_tip = 32;
int right_thumb_tip = 33;
for (int i = 0; i < body_ar_engine.output_bboxes.num_boxes; i++) {
keypoints = keypointsBatch8 + (i * 34);
for (endPt = (pt = (NvAR_Point2f*)keypoints) + numKeyPoints; pt < endPt; ++pt)
cv::circle(frm, cv::Point(lround(pt->x), lround(pt->y)), 4, cv::Scalar(180, 180, 180), -1);
if (output_bbox) {
cv::rectangle(frm, cv::Point(lround(output_bbox->boxes[i].x), lround(output_bbox->boxes[i].y)),
cv::Point(lround(output_bbox->boxes[i].x + output_bbox->boxes[i].width), lround(output_bbox->boxes[i].y + output_bbox->boxes[i].height)),
cv::Scalar(255, 0, 0), 2);
}
// center body
DrawKeyPointLine(frm, keypoints, pelvis, torso, kColorGreen);
DrawKeyPointLine(frm, keypoints, torso, neck, kColorGreen);
DrawKeyPointLine(frm, keypoints, neck, pelvis, kColorGreen);
// right side
DrawKeyPointLine(frm, keypoints, right_ankle, right_knee, kColorRed);
DrawKeyPointLine(frm, keypoints, right_knee, right_hip, kColorRed);
DrawKeyPointLine(frm, keypoints, right_hip, pelvis, kColorRed);
DrawKeyPointLine(frm, keypoints, right_hip, right_shoulder, kColorRed);
DrawKeyPointLine(frm, keypoints, right_shoulder, right_elbow, kColorRed);
DrawKeyPointLine(frm, keypoints, right_elbow, right_wrist, kColorRed);
DrawKeyPointLine(frm, keypoints, right_shoulder, neck, kColorRed);
// right side hand and feet
DrawKeyPointLine(frm, keypoints, right_wrist, right_pinky_knuckle, kColorRed);
DrawKeyPointLine(frm, keypoints, right_wrist, right_middle_tip, kColorRed);
DrawKeyPointLine(frm, keypoints, right_wrist, right_index_knuckle, kColorRed);
DrawKeyPointLine(frm, keypoints, right_wrist, right_thumb_tip, kColorRed);
DrawKeyPointLine(frm, keypoints, right_ankle, right_heel, kColorRed);
DrawKeyPointLine(frm, keypoints, right_ankle, right_big_toe, kColorRed);
DrawKeyPointLine(frm, keypoints, right_big_toe, right_small_toe, kColorRed);
//left side
DrawKeyPointLine(frm, keypoints, left_ankle, left_knee, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_knee, left_hip, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_hip, pelvis, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_hip, left_shoulder, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_shoulder, left_elbow, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_elbow, left_wrist, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_shoulder, neck, kColorBlue);
// left side hand and feet
DrawKeyPointLine(frm, keypoints, left_wrist, left_pinky_knuckle, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_wrist, left_middle_tip, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_wrist, left_index_knuckle, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_wrist, left_thumb_tip, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_ankle, left_heel, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_ankle, left_big_toe, kColorBlue);
DrawKeyPointLine(frm, keypoints, left_big_toe, left_small_toe, kColorBlue);
// head
DrawKeyPointLine(frm, keypoints, neck, nose, kColorGreen);
DrawKeyPointLine(frm, keypoints, nose, right_eye, kColorGreen);
DrawKeyPointLine(frm, keypoints, right_eye, right_ear, kColorGreen);
DrawKeyPointLine(frm, keypoints, nose, left_eye, kColorGreen);
DrawKeyPointLine(frm, keypoints, left_eye, left_ear, kColorGreen);
}
if (FLAG_offlineMode) keyPointsOutputVideo.write(frm);
}
DoApp::Err DoApp::acquireFrame() {
Err err = errNone;
@@ -682,8 +1015,20 @@ DoApp::Err DoApp::acquireBodyBox() {
printf("]\n");
}
if (FLAG_captureOutputs) {
writeFrameAndEstResults(frame, body_ar_engine.output_bboxes);
writeVideoAndEstResults(frame, body_ar_engine.output_bboxes);
#if NV_MULTI_OBJECT_TRACKER
if (FLAG_enablePeopleTracking) {
writeFrameAndEstResults(frame, body_ar_engine.output_tracking_bboxes);
writeVideoAndEstResults(frame, body_ar_engine.output_tracking_bboxes);
}
else {
writeFrameAndEstResults(frame, body_ar_engine.output_bboxes);
writeVideoAndEstResults(frame, body_ar_engine.output_bboxes);
}
#else
writeFrameAndEstResults(frame, body_ar_engine.output_bboxes);
writeVideoAndEstResults(frame, body_ar_engine.output_bboxes);
#endif
}
if (0 == n) return errNoBody;
@@ -701,18 +1046,29 @@ DoApp::Err DoApp::acquireBodyBox() {
DoApp::Err DoApp::acquireBodyBoxAndKeyPoints() {
Err err = errNone;
int numKeyPoints = body_ar_engine.getNumKeyPoints();
NvAR_Rect output_bbox;
std::vector<NvAR_Point2f> keypoints2D(numKeyPoints);
std::vector<NvAR_Point3f> keypoints3D(numKeyPoints);
std::vector<NvAR_Quaternion> jointAngles(numKeyPoints);
NvAR_BBoxes output_bbox;
NvAR_TrackingBBoxes output_tracking_bbox;
std::vector<NvAR_Point2f> keypoints2D(numKeyPoints * 8);
std::vector<NvAR_Point3f> keypoints3D(numKeyPoints * 8);
std::vector<NvAR_Quaternion> jointAngles(numKeyPoints * 8);
#ifdef DEBUG_PERF_RUNTIME
auto start = std::chrono::high_resolution_clock::now();
#endif
unsigned n;
// get keypoints in original image resolution coordinate space
unsigned n = body_ar_engine.acquireBodyBoxAndKeyPoints(frame, keypoints2D.data(), keypoints3D.data(),
jointAngles.data(), output_bbox, 0);
#if NV_MULTI_OBJECT_TRACKER
if (FLAG_enablePeopleTracking)
n = body_ar_engine.acquireBodyBoxAndKeyPoints(frame, keypoints2D.data(), keypoints3D.data(),
jointAngles.data(), &output_tracking_bbox, 0);
else
#endif
n = body_ar_engine.acquireBodyBoxAndKeyPoints(frame, keypoints2D.data(), keypoints3D.data(),
jointAngles.data(), &output_bbox, 0);
#ifdef DEBUG_PERF_RUNTIME
auto end = std::chrono::high_resolution_clock::now();
@@ -734,17 +1090,37 @@ DoApp::Err DoApp::acquireBodyBoxAndKeyPoints() {
printf("]\n");
}
if (FLAG_captureOutputs) {
writeFrameAndEstResults(frame, body_ar_engine.output_bboxes, keypoints2D.data());
writeVideoAndEstResults(frame, body_ar_engine.output_bboxes, keypoints2D.data());
#if NV_MULTI_OBJECT_TRACKER
if (FLAG_enablePeopleTracking) {
writeFrameAndEstResults(frame, body_ar_engine.output_tracking_bboxes, keypoints2D.data());
writeVideoAndEstResults(frame, body_ar_engine.output_tracking_bboxes, keypoints2D.data());
}
else {
writeFrameAndEstResults(frame, body_ar_engine.output_bboxes, keypoints2D.data());
writeVideoAndEstResults(frame, body_ar_engine.output_bboxes, keypoints2D.data());
}
#else
writeFrameAndEstResults(frame, body_ar_engine.output_bboxes, keypoints2D.data());
writeVideoAndEstResults(frame, body_ar_engine.output_bboxes, keypoints2D.data());
#endif
}
if (0 == n) return errNoBody;
#ifdef VISUALIZE
if (drawVisualization) {
DrawKeyPointsAndEdges(frame, keypoints2D.data(), numKeyPoints, &output_bbox);
#if NV_MULTI_OBJECT_TRACKER
if (FLAG_enablePeopleTracking) DrawKeyPointsAndEdges(frame, keypoints2D.data(), numKeyPoints, &output_tracking_bbox);
else
#endif
DrawKeyPointsAndEdges(frame, keypoints2D.data(), numKeyPoints, &output_bbox);
if (FLAG_offlineMode) {
DrawBBoxes(frame, &output_bbox);
#if NV_MULTI_OBJECT_TRACKER
if (FLAG_enablePeopleTracking) DrawBBoxes(frame, &output_tracking_bbox);
else
#endif
DrawBBoxes(frame, &output_bbox);
}
}
#endif // VISUALIZE
@@ -920,6 +1296,8 @@ DoApp::Err DoApp::run() {
}
cv::imshow(windowTitle, frame);
}
if (!FLAG_offlineMode) {
int n = cv::waitKey(1);
@@ -991,7 +1369,9 @@ int main(int argc, char **argv) {
if (FLAG_useCudaGraph) printf("Enable capturing cuda graph = %d\n", FLAG_useCudaGraph);
app.body_ar_engine.useCudaGraph(FLAG_useCudaGraph);
#if NV_MULTI_OBJECT_TRACKER
app.body_ar_engine.enablePeopleTracking(FLAG_enablePeopleTracking, FLAG_shadowTrackingAge, FLAG_probationAge, FLAG_maxTargetsTracked);
#endif
doErr = DoApp::errBodyModelInit;
if (FLAG_modelPath.empty()) {
printf("WARNING: Model path not specified. Please set --model_path=/path/to/trt/and/body/models, "

BIN
samples/BodyTrack/BodyTrack.exe
View File

Binary file not shown.

35
samples/BodyTrack/CMakeLists.txt
View File

@@ -4,12 +4,14 @@ set(SOURCE_FILES BodyEngine.cpp
)
set(HEADER_FILES BodyEngine.h)
set(SOURCE_FILES ${SOURCE_FILES}
../../nvar/src/nvARProxy.cpp
../../nvar/src/nvCVImageProxy.cpp)
if(MSVC)
set(SOURCE_FILES ${SOURCE_FILES}
../../nvar/src/nvARProxy.cpp
../../nvar/src/nvCVImageProxy.cpp)
set(HEADER_FILES ${HEADER_FILES}
../utils/RenderingUtils.h)
set(HEADER_FILES ${HEADER_FILES}
../utils/RenderingUtils.h)
endif(MSVC)
# Set Visual Studio source filters
source_group("Source Files" FILES ${SOURCE_FILES})
@@ -21,6 +23,7 @@ target_include_directories(BodyTrack PUBLIC
${SDK_INCLUDES_PATH}
)
if(MSVC)
target_link_libraries(BodyTrack PUBLIC
opencv346
utils_sample
@@ -29,11 +32,21 @@ target_link_libraries(BodyTrack PUBLIC
set(ARSDK_PATH_STR ${CMAKE_CURRENT_SOURCE_DIR}/../../bin)
set(OPENCV_PATH_STR ${CMAKE_CURRENT_SOURCE_DIR}/../external/opencv/bin)
set(PATH_STR "PATH=%PATH%" ${OPENCV_PATH_STR})
set(CMD_ARG_STR "")
set_target_properties(BodyTrack PROPERTIES
FOLDER SampleApps
VS_DEBUGGER_ENVIRONMENT "${PATH_STR}"
VS_DEBUGGER_COMMAND_ARGUMENTS "${CMD_ARG_STR}"
set(CMD_ARG_STR "--model_path=\"${CMAKE_CURRENT_SOURCE_DIR}/../../bin/models\"")
set_target_properties(BodyTrack PROPERTIES
FOLDER SampleApps
VS_DEBUGGER_ENVIRONMENT "${PATH_STR}"
VS_DEBUGGER_COMMAND_ARGUMENTS "${CMD_ARG_STR}"
)
elseif(UNIX)
find_package(PNG REQUIRED)
find_package(JPEG REQUIRED)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pthread")
target_link_libraries(BodyTrack PUBLIC
nvARPose
NVCVImage
OpenCV
utils_sample
)
endif(MSVC)

2
samples/CMakeLists.txt
View File

@@ -6,3 +6,5 @@ target_link_libraries(utils_sample INTERFACE GLM)
add_subdirectory(external)
add_subdirectory(FaceTrack)
add_subdirectory(BodyTrack)
add_subdirectory(GazeRedirect)
add_subdirectory(ExpressionApp)

2378
samples/ExpressionApp/BackEndOpenGL/FaceIO.cpp Normal file
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File diff suppressed because it is too large Load Diff

231
samples/ExpressionApp/BackEndOpenGL/FaceIO.h Normal file
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@@ -0,0 +1,231 @@
/*###############################################################################
#
# Copyright 2019-2021 NVIDIA Corporation
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of
# this software and associated documentation files (the "Software"), to deal in
# the Software without restriction, including without limitation the rights to
# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
# the Software, and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
###############################################################################*/
#ifndef __FACE_IO__
#define __FACE_IO__
#include <stdint.h>
enum FaceIOErr {
kIOErrNone,
kIOErrFileNotFound,
kIOErrFileOpen,
kIOErrEOF,
kIOErrRead,
kIOErrWrite,
kIOErrSyntax,
kIOErrFormat,
kIOErrNotValue,
kIOErrNullPointer,
kIOErrParameter,
};
const char* FaceIOErrorStringFromCode(FaceIOErr err);
/********************************************************************************
********************************************************************************
********************************************************************************
***** IO Adapter *****
********************************************************************************
********************************************************************************
********************************************************************************/
/********************************************************************************
* FaceIOAdapter.
* Subclass from this and supply the accessors.
********************************************************************************/
class FaceIOAdapter {
public:
virtual uint32_t getShapeMeanSize() const { return 0; } /* The size of the mean shape mean, in elements. */
virtual uint32_t getShapeModesSize() const { return 0; } /* The total size of all shape modes (numModes*modeSize) */
virtual uint32_t getShapeNumModes() const { return 0; } /* The number of shape modes. */
virtual uint32_t getShapeEigenvaluesSize() const { return 0; } /* The number of shape eigenvalues
(should equal the number of modes) */
virtual float* getShapeMean(uint32_t /*size*/) { return nullptr; } /* Get a pointer to the shape mean.
If a nonzero size if supplied, it is resized first. */
virtual float* getShapeModes(uint32_t /*modeSize*/, uint32_t /*numModes*/) { return nullptr; } /* Get a pointer to the
shape modes, resizing first, if the parameters are nonzero. */
virtual float* getShapeEigenvalues(uint32_t /*numModes*/) { return nullptr; } /* Get a pointer to the shape eigenvalues,
resizing first if numModes is nonzero. */
virtual uint32_t getColorMeanSize() const { return 0; } /* The color mean ... */
virtual uint32_t getColorModesSize() const { return 0; } /* ... and modes */
virtual uint32_t getColorNumModes() const { return 0; }
virtual uint32_t getColorEigenvaluesSize() const { return 0; }
virtual float* getColorMean(uint32_t /*size*/) { return nullptr; }
virtual float* getColorModes(uint32_t /*modeSize*/, uint32_t /*numModes*/) { return nullptr; }
virtual float* getColorEigenvalues(uint32_t /*numModes*/) { return nullptr; }
virtual void setTriangleListSize(uint32_t /*size*/) {} /* The triangle list */
virtual uint32_t getTriangleListSize() const = 0;
virtual uint16_t* getTriangleList(uint32_t /*size*/) { return nullptr; }
virtual void setTextureCoordinatesSize(uint32_t /*size*/) {} /* The texture coordinates */
virtual uint32_t getTextureCoordinatesSize() const { return 0; }
virtual float* getTextureCoordinates(uint32_t /*size*/) { return nullptr; }
virtual void setNumBlendShapes(uint32_t /*numShapes*/) {} /* The blend shapes */
virtual void setBlendShapeName(uint32_t /*i*/, const char* /*name*/) {}
virtual uint32_t getNumBlendShapes() const { return 0; }
virtual const char* getBlendShapeName(uint32_t /*i*/) const { return nullptr; }
virtual uint32_t getBlendShapeSize(uint32_t /*i*/) const { return 0; }
virtual float* getBlendShape(uint32_t /*i*/, uint32_t /*size*/) { return nullptr; }
virtual void setIbugLandmarkMappingsSize(uint32_t /*n*/) {} /* The mappings from IBUG landmarks to vertex index */
virtual uint32_t getIbugLandmarkMappingsSize() const { return 0; }
virtual uint16_t* getIbugLandmarkMappings(uint32_t /*size*/) { return nullptr; }
virtual void appendIbugLandmarkMapping(uint16_t /*i*/) {}
virtual void appendIbugLandmarkMapping(uint16_t /*i*/, uint16_t /*j*/) {}
virtual void setIbugRightContourSize(uint32_t /*n*/) {} /* The IBUG contour on the right side of the face */
virtual uint32_t getIbugRightContourSize() const { return 0; }
virtual uint16_t* getIbugRightContour(uint32_t /*size*/) { return nullptr; }
virtual void appendIbugRightContour(uint16_t /*i*/) {}
virtual void setIbugLeftContourSize(uint32_t /*n*/) {} /* The IBUG contour on the left side of the face */
virtual uint32_t getIbugLeftContourSize() const { return 0; }
virtual uint16_t* getIbugLeftContour(uint32_t /*size*/) { return nullptr; }
virtual void appendIbugLeftContour(uint16_t /*i*/) {}
virtual void setModelRightContourSize(uint32_t /*n*/) {} /* The right contour of our model */
virtual uint32_t getModelRightContourSize() const { return 0; }
virtual uint16_t* getModelRightContour(uint32_t /*size*/) { return nullptr; }
virtual void appendModelRightContour(uint16_t /*i*/) {}
virtual void setModelLeftContourSize(uint32_t /*n*/) {} /* The left contour of our model */
virtual uint32_t getModelLeftContourSize() const { return 0; }
virtual uint16_t* getModelLeftContour(uint32_t /*size*/) { return nullptr; }
virtual void appendModelLeftContour(uint16_t /*i*/) {}
virtual void setAdjacentFacesSize(uint32_t /*n*/) {} /* The topology of adjacent faces to each edge */
virtual uint32_t getAdjacentFacesSize() const { return 0; }
virtual uint16_t* getAdjacentFaces(uint32_t /*size*/) { return nullptr; }
virtual void appendAdjacentFace(uint16_t /*i*/) {}
virtual void appendAdjacentFaces(uint16_t /*i*/, uint16_t /*j*/) {}
virtual void setAdjacentVerticesSize(uint32_t /*n*/) {} /* The topology of adjacent vertices to each edge */
virtual uint32_t getAdjacentVerticesSize() const { return 0; }
virtual uint16_t* getAdjacentVertices(uint32_t /*size*/) { return nullptr; }
virtual void appendAdjacentVertex(uint16_t /*i*/) {}
virtual void appendAdjacentVertices(uint16_t /*i*/, uint16_t /*j*/) {}
virtual void setNvlmLandmarksSize(uint32_t /*n*/) {} /* The tracked landmarks */
virtual uint32_t getNvlmLandmarksSize() const { return 0; }
virtual uint16_t* getNvlmLandmarks(uint32_t /*size*/) { return nullptr; }
virtual void appendNvlmLandmark(uint16_t /*i*/) {}
virtual void setNvlmRightContourSize(uint32_t /*n*/) {} /* The tracked right jawline contour */
virtual uint32_t getNvlmRightContourSize() const { return 0; }
virtual uint16_t* getNvlmRightContour(uint32_t /*size*/) { return nullptr; }
virtual void appendNvlmRightContour(uint16_t /*i*/) {}
virtual void setNvlmLeftContourSize(uint32_t /*n*/) {}; /* The tracked left jawline contour */
virtual uint32_t getNvlmLeftContourSize() const { return 0; }
virtual uint16_t* getNvlmLeftContour(uint32_t /*size*/) { return nullptr; }
virtual void appendNvlmLeftContour(uint16_t /*i*/) {}
virtual void setNumPartitions(uint32_t /*n*/) {}
virtual void setPartitionName(uint32_t /*i*/, const char* /*name*/) {}
virtual void setPartitionMaterialName(uint32_t /*i*/, const char* /*name*/) {}
virtual void setPartition(uint32_t /*i*/, uint32_t /*faceIndex*/, uint32_t /*numFaces*/,
uint32_t /*vertexIndex*/, uint32_t /*numVertices*/, int32_t /*smoothingGroup*/) {}
virtual uint32_t getNumPartitions() const { return 0; }
virtual const char* getPartitionName(uint32_t /*i*/) const { return nullptr; }
virtual const char* getPartitionMaterialName(uint32_t /*i*/) const { return nullptr; }
virtual int16_t getPartition(uint32_t /*i*/, uint32_t* faceIndex, uint32_t* numFaces, uint32_t* vertexIndex,
uint32_t* numVertices, int32_t* smoothingGroup) const
{ if (faceIndex) *faceIndex = 0u; if (numFaces) *numFaces = 0u; if (vertexIndex) *vertexIndex = 0u;
if (numVertices) *numVertices = 0u; if (smoothingGroup) *smoothingGroup = -1; return /*partitionIndex*/-1;
}
/* Const accessors do not have the ability to resize. */
const float* getShapeMean() const { return const_cast<FaceIOAdapter*>(this)->getShapeMean(0); }
const float* getShapeModes() const { return const_cast<FaceIOAdapter*>(this)->getShapeModes(0, 0); }
const float* getShapeEigenvalues() const { return const_cast<FaceIOAdapter*>(this)->getShapeEigenvalues(0); }
const float* getColorMean() const { return const_cast<FaceIOAdapter*>(this)->getColorMean(0); }
const float* getColorModes() const { return const_cast<FaceIOAdapter*>(this)->getColorModes(0, 0); }
const float* getColorEigenvalues() const { return const_cast<FaceIOAdapter*>(this)->getColorEigenvalues(0); }
const float* getTextureCoordinates() const { return const_cast<FaceIOAdapter*>(this)->getTextureCoordinates(0); }
const uint16_t* getTriangleList() const { return const_cast<FaceIOAdapter*>(this)->getTriangleList(0); }
const float* getBlendShape(uint32_t i) const { return const_cast<FaceIOAdapter*>(this)->getBlendShape(i, 0); }
const uint16_t* getIbugLandmarkMappings() const { return const_cast<FaceIOAdapter*>(this)->getIbugLandmarkMappings(0); }
const uint16_t* getIbugRightContour() const { return const_cast<FaceIOAdapter*>(this)->getIbugRightContour(0); }
const uint16_t* getIbugLeftContour() const { return const_cast<FaceIOAdapter*>(this)->getIbugLeftContour(0); }
const uint16_t* getModelRightContour() const { return const_cast<FaceIOAdapter*>(this)->getModelRightContour(0); }
const uint16_t* getModelLeftContour() const { return const_cast<FaceIOAdapter*>(this)->getModelLeftContour(0); }
const uint16_t* getAdjacentFaces() const { return const_cast<FaceIOAdapter*>(this)->getAdjacentFaces(0); }
const uint16_t* getAdjacentVertices() const { return const_cast<FaceIOAdapter*>(this)->getAdjacentVertices(0); }
const uint16_t* getNvlmLandmarks() const { return const_cast<FaceIOAdapter*>(this)->getNvlmLandmarks(0); }
const uint16_t* getNvlmRightContour() const { return const_cast<FaceIOAdapter*>(this)->getNvlmRightContour(0); }
const uint16_t* getNvlmLeftContour() const { return const_cast<FaceIOAdapter*>(this)->getNvlmLeftContour(0); }
};
/** Write the face model as an NVF model.
* @param[in] fac the face I/O adapter for the target data structure.
* @param[in] fileName the desired name of the output file.
* @return kIOErrNone if the file was written completed successfully.
* @return kIOErrFileOpen if the file could not be opened.
* @return kIOErrWrite if an error occurred while writing the file.
*/
FaceIOErr WriteNVFFaceModel(FaceIOAdapter* fac, const char* fileName);
/** Read a face model from an NVF file.
* @param[in] fileName the name of the file to be read.
* @param[in,out] fac the face I/O adapter for the target data structure.
* @return kIOErrNone if the file was read successfully.
* @return kIOErrFileNotFound if the file was not found .
* @return kIOErrFileOpen if the file could not be opened.
* @return kIOErrRead if an error occurred while reading the file.
* @return kIOErrSyntax if a syntax error has been encountered while reading the file.
*/
FaceIOErr ReadNVFFaceModel(const char* fileName, FaceIOAdapter* fac);
/** Read a face model from five OES files.
* @param[in] shape the name of the shape file to be read.
* @param[in] ibugNumandmarks the number of Ibug landmarks.
* @param[in] blendShapes the name of the blend shapes file to be read.
* @param[in] contours the name of the contours file to be read.
* @param[in] topology the name of the topology file to be read.
* @param[in,out] fac the face I/O adapter for the target data structure.
* @return kIOErrNone if the file was read successfully.
* @return kIOErrFileNotFound if the file was not found .
* @return kIOErrFileOpen if the file could not be opened.
* @return kIOErrRead if an error occurred while reading the file.
* @return kIOErrSyntax if a syntax error has been encountered while reading the file.
*/
FaceIOErr ReadEOSFaceModel(const char* shape, const unsigned ibugNumLandmarks, const char* blendShapes,
const char* contours, const char* topology, FaceIOAdapter* fac);
/** Write the face model as a JSON model.
* @param[in] fac the face I/O adapter for the target data structure.
* @param[in] fileName the desired name of the output file.
* If NULL is supplied, it is written to the standard output.
* @return kIOErrNone if the file was written completed successfully.
* @return kIOErrFileOpen if the file could not be opened.
* @return kIOErrWrite if an error occurred while writing the file.
*/
FaceIOErr PrintJSONFaceModel(FaceIOAdapter* fac, const char* fileName);
#endif /* __FACE_IO__ */

314
samples/ExpressionApp/BackEndOpenGL/GLMaterial.cpp Normal file
View File

@@ -0,0 +1,314 @@
/*###############################################################################
#
# Copyright 2016-2021 NVIDIA Corporation
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of
# this software and associated documentation files (the "Software"), to deal in
# the Software without restriction, including without limitation the rights to
# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
# the Software, and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
###############################################################################*/
#include "GLMaterial.h"
#include <stdlib.h>
#include <string.h>
#include <fstream>
#include <sstream>
#include <vector>
#ifdef _MSC_VER
#define strcasecmp _stricmp
#endif // _MSC_VER
////////////////////////////////////////////////////////////////////////////////
///// UTILITY FUNCTIONS /////
////////////////////////////////////////////////////////////////////////////////
static void SplitString(const std::string &s, std::vector<std::string>&tokens) {
tokens.clear();
std::string token;
std::istringstream tokenStream(s);
while (std::getline(tokenStream, token, ' ')) {
if (0 == token.size())
continue;
tokens.push_back(token);
}
}
static void SetColorFromStringArray(GLSpectrum3f& color, std::string* strs) {
color.r = strtof(strs[0].c_str(), nullptr);
color.g = strtof(strs[1].c_str(), nullptr);
color.b = strtof(strs[2].c_str(), nullptr);
}
static bool StrToBool(const char* str) {
return strcasecmp(str, "true") == 0 ||
strcasecmp(str, "on") == 0 ||
strcasecmp(str, "yes") == 0 ||
strcasecmp(str, "1") == 0;
}
////////////////////////////////////////////////////////////////////////////////
///// GLMaterial /////
////////////////////////////////////////////////////////////////////////////////
GLMaterial::~GLMaterial() {
//if (diffuseTexture)
// delete diffuseTexture;
}
GLMaterial::GLMaterial() {
clear();
}
GLMaterial::GLMaterial(const GLMaterial& mtl) {
*this = mtl;
}
void GLMaterial::setTextureFile(const char* file) {
if (file) diffuseTextureFile = file;
else diffuseTextureFile.clear();
}
void GLMaterial::clear() {
diffuseColor.set(1.f, 1.f, 1.f);
ambientColor.set(0.f, 0.f, 0.f);
specularColor.set(0.f, 0.f, 0.f);
transmissionColor.set(0.f, 0.f, 0.f);
specularExponent = 0.f;
opacity = 1.f;
diffuseTexture = nullptr;
diffuseTextureFile.clear();
illuminationModel = kUnspecifiedIlluminationModel;
}
////////////////////////////////////////////////////////////////////////////////
///// GLMaterialLibrary /////
////////////////////////////////////////////////////////////////////////////////
struct GLMaterialName {
GLMaterial mtl;
std::string name;
GLMaterialName() {}
GLMaterialName(const GLMaterial& matParam, const char* nameParam) {
mtl = matParam;
name = nameParam;
}
};
struct GLMaterialLibrary::Impl {
std::vector<GLMaterialName> lib;
};
GLMaterialLibrary::GLMaterialLibrary() {
pimpl = new Impl;
}
GLMaterialLibrary::~GLMaterialLibrary() {
delete pimpl;
}
void GLMaterialLibrary::clear() {
pimpl->lib.clear();
}
unsigned GLMaterialLibrary::numMaterials() const {
return unsigned(pimpl->lib.size());
}
NvCV_Status GLMaterialLibrary::addMaterial(const GLMaterial& mtrl, const char* name) {
if (getMaterial(name))
return NVCV_ERR_SELECTOR;
pimpl->lib.emplace_back(mtrl, name);
return NVCV_SUCCESS;
}
NvCV_Status GLMaterialLibrary::addDiffuseMaterial(const GLSpectrum3f& color, const char* name) {
GLMaterial mtrl;
if (getMaterial(name))
return NVCV_ERR_SELECTOR;
mtrl.diffuseColor = color;
pimpl->lib.emplace_back(mtrl, name);
return NVCV_SUCCESS;
}
NvCV_Status GLMaterialLibrary::removeMaterial(const char* name) {
unsigned i, n;
for (i = 0, n = unsigned(pimpl->lib.size()); i < n; ++i) {
if (name == pimpl->lib[i].name) {
pimpl->lib.erase(pimpl->lib.begin() + i);
return NVCV_SUCCESS;
}
}
return NVCV_ERR_FEATURENOTFOUND;
}
GLMaterial* GLMaterialLibrary::newMaterial(const char* name) {
if (getMaterial(name))
return nullptr;
size_t z = pimpl->lib.size();
pimpl->lib.resize(z + 1);
GLMaterialName* mtn = &pimpl->lib[z];
mtn->name = name;
return &mtn->mtl;
}
const GLMaterial* GLMaterialLibrary::getMaterial(const char* name) const {
GLMaterialName *mp, *mEnd;
for (mEnd = (mp = pimpl->lib.data()) + pimpl->lib.size(); mp < mEnd; ++mp)
if (name == mp->name)
return &mp->mtl;
return nullptr;
}
const GLMaterial* GLMaterialLibrary::getMaterial(unsigned i, const char** name) const {
if (i < pimpl->lib.size()) {
const GLMaterialName& matn = pimpl->lib[i];
if (name)
*name = matn.name.c_str();
return &matn.mtl;
}
if (name)
name = nullptr;
return nullptr;
}
NvCV_Status GLMaterialLibrary::read(const char* name) {
unsigned lineNum;
std::vector<std::string> tokens;
GLMaterial *mtl = nullptr;
clear();
std::ifstream fd(name);
if (!fd.is_open())
return NVCV_ERR_READ;
std::string line;
for (lineNum = 1; std::getline(fd, line); ++lineNum) {
SplitString(line, tokens);
if (!tokens.size())
continue;
if (tokens[0][0] == '#') {
continue;
}
if (tokens[0] == "newmtl" && 2 == tokens.size()) {
mtl = newMaterial(tokens[1].c_str());
continue;
}
if (tokens[0] == "Ka" && 4 == tokens.size()) {
SetColorFromStringArray(mtl->ambientColor, &tokens[1]);
continue;
}
if (tokens[0] == "Kd" && 4 == tokens.size()) {
SetColorFromStringArray(mtl->diffuseColor, &tokens[1]);
continue;
}
if (tokens[0] == "Ks" && 4 == tokens.size()) {
SetColorFromStringArray(mtl->specularColor, &tokens[1]);
continue;
}
if (tokens[0] == "Tf" && 4 == tokens.size()) {
SetColorFromStringArray(mtl->transmissionColor, &tokens[1]);
continue;
}
if (tokens[0] == "illum" && 2 == tokens.size()) {
mtl->illuminationModel = (unsigned char)strtol(tokens[1].c_str(), nullptr, 10);
continue;
}
if (tokens[0] == "d" && 2 == tokens.size()) {
/* We don't support "_d" */
mtl->opacity = strtof(tokens[1].c_str(), nullptr);
continue;
}
if (tokens[0] == "Ns" && 2 == tokens.size()) { /* We don't support "-d" */
mtl->specularExponent = strtof(tokens[1].c_str(), nullptr);
continue;
}
if (tokens[0] == "sharpness") { /* We don't support sharpness */
continue;
}
if (tokens[0] == "Ni") { /* We don't support index of refraction */
continue;
}
if (tokens[0] == "map_Kd") {
for (unsigned i = 1; i < tokens.size(); ++i) {
if (tokens[i] == "-blendu") {
++i;
}
else if (tokens[i] == "-blendv") {
++i;
}
else if (tokens[i] == "-cc") {
++i;
}
else if (tokens[i] == "-clamp") {
++i;
}
else if (tokens[i] == "-mm") {
++i;
}
else if (tokens[i] == "-o") {
i += 3;
}
else if (tokens[i] == "-s") {
i += 3;
}
else if (tokens[i] == "-t") {
i += 3;
}
else if (tokens[i] == "-texres") {
++i;
}
else if (tokens[i][0] == '-') {
printf("Unknown option: \"%s\"\n", tokens[i].c_str());
}
else {
mtl->diffuseTextureFile = tokens[i];
}
}
if (mtl->diffuseTextureFile.empty())
printf("No diffuse texture given on line %u\n", lineNum);
continue;
}
}
return NVCV_SUCCESS;
}

143
samples/ExpressionApp/BackEndOpenGL/GLMaterial.h Normal file
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/*###############################################################################
#
# Copyright 2016-2021 NVIDIA Corporation
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of
# this software and associated documentation files (the "Software"), to deal in
# the Software without restriction, including without limitation the rights to
# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
# the Software, and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
###############################################################################*/
#ifndef __GLMATERIAL_H
#define __GLMATERIAL_H
#include <string>
#include "GLSpectrum.h"
#include "nvCVStatus.h"
////////////////////////////////////////////////////////////////////////////////
/// Specification for light transport on the surfaces of objects.
/// @todo Store the provenance of the material?
/// @todo Should we store the name, too?
////////////////////////////////////////////////////////////////////////////////
class GLMaterial {
public:
/// Default constructor.
GLMaterial();
/// Copy constructor.
/// @param[in] mtl the material to copy.
/// @note a copy is made of the diffuseTextureFile, if not NULL.
GLMaterial(const GLMaterial& mtl);
/// Destructor.
/// @note the diffuseTextureFile string is disposed.
/// @note the opaque diffuseTexture is *not* disposed.
~GLMaterial();
/// Assignment.
/// This copies the diffuseTextureFile, if not NULL>
/// @param[in] mtl the material to copy (RHS).
/// @return a reference to the LHS of the assignment.
//GLMaterial& operator=(const GLMaterial& mtl); // default implementation
/// Reset as it was in the constructor: 0 materials.
void clear();
/// Use this to set the diffuseTextureFile, by making a copy of the specified string.
/// @param[in] fileName the file name of the texture file. A copy of the string is made.
void setTextureFile(const char* fileName);
GLSpectrum3f ambientColor; ///< The ambient color, in [0,1].
GLSpectrum3f diffuseColor; ///< The diffuse color, in [0,1].
GLSpectrum3f specularColor; ///< The specular color, in [0,1].
GLSpectrum3f transmissionColor; ///< The transmission color, in [0,1].
float specularExponent; ///< The specular exponent, in [1, 10000]
float opacity; ///< The opacity, in [0,1].
std::string diffuseTextureFile; ///< The name of the diffuse texture file. Set through setTextureFile().
void *diffuseTexture; ///< User-defined texture representation -- unmanaged.
unsigned char illuminationModel; ///< The illumination model, in [0,10], or kUnspecifiedIlluminationModel.
static const int kUnspecifiedIlluminationModel = 255; ///< The value to be used for an unspecified illumination model.
};
////////////////////////////////////////////////////////////////////////////////
/// Library of material specifications for surface light transport.
////////////////////////////////////////////////////////////////////////////////
class GLMaterialLibrary {
public:
/// Constructor.
GLMaterialLibrary();
/// Destructor.
~GLMaterialLibrary();
/// Reset as it was in the constructor: 0 materials.
void clear();
/// Read from a file
NvCV_Status read(const char* name);
/// Add a new material to the library. A copy is made both of material and name.
/// @param[in] mtrl the material to be added to the library.
/// @param[in] name the name of the material, for future access.
/// @return keErrNone if the operation was completed successfully.
/// @return keErrDuplicate if a material of the same name is already found in the library.
NvCV_Status addMaterial(const GLMaterial& mtrl, const char* name);
/// Add a new diffuse material to the library. A copy is made both of the name.
/// @param[in] color the diffuse color to be added to the library.
/// @param[in] name the name of the material, for future access.
/// @return keErrNone if the operation was completed successfully.
/// @return keErrDuplicate if a material of the same name is already found in the library.
NvCV_Status addDiffuseMaterial(const GLSpectrum3f& color, const char* name);
/// Remove a material.
/// @param[in] name the name of the material to remove.
/// @return keErrNone if the operation was completed successfully.
NvCV_Status removeMaterial(const char* name);
/// Create a new material with the given name.
/// @param[in] name the name of the material, for future access.
/// @return a pointer to the new material in the database, if the operation was completed successfully.
/// @return NULL, if a material of the same name is already found in the library.
GLMaterial* newMaterial(const char* name);
/// Get the number of materials in the material library.
/// @return the number of materials.
unsigned numMaterials() const;
/// Get the material with the specified name.
/// @param[in] name the name of the material to get.
/// @return the specified material, or NULL if the material was not found.
const GLMaterial* getMaterial(const char* name) const;
/// Get the material with the specified index.
/// @param[in] i the index of the material to get.
/// @param[out] name the name of the material with the specified index (can be NULL).
/// @return the specified material, or NULL if the material was not found.
const GLMaterial* getMaterial(unsigned i, const char** name = nullptr) const;
private:
struct Impl;
Impl *pimpl;
};
#endif /* __GLMATERIAL_H */

624
samples/ExpressionApp/BackEndOpenGL/GLMesh.cpp Normal file
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@@ -0,0 +1,624 @@
/*###############################################################################
#
# Copyright 2021 NVIDIA Corporation
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of
# this software and associated documentation files (the "Software"), to deal in
# the Software without restriction, including without limitation the rights to
# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
# the Software, and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
###############################################################################*/
#include "GLMesh.h"
#include <string.h>
#include <algorithm>
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
//// ////
//// GLMesh ////
//// ////
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
// Note: we assume that the transformation is affine, i.e. that M[3] = M[7] = M[11] = 0 and M[15] = 1.
static void TransformPoints(const glm::mat4x4& M, unsigned numPts, const glm::vec3 *pts, glm::vec3 *xPts) {
for (; numPts--; ++pts, ++xPts) { // NB it is better to do the dot products in double precision
glm::vec3 q; // Use an intermediate variable to allow transformation in-place.
q.x = M[0][0] * pts->x + M[1][0] * pts->y + M[2][0] * pts->z + M[3][0];
q.y = M[0][1] * pts->x + M[1][1] * pts->y + M[2][1] * pts->z + M[3][1];
q.z = M[0][2] * pts->x + M[1][2] * pts->y + M[2][2] * pts->z + M[3][2];
*xPts = q;
}
}
// Note: We assume here that the transformation is isotropic;
// otherwise we would need to transform by the inverse transpose of the upper left.
static void TransformNormals(const glm::mat4x4& M, unsigned numPts, const glm::vec3 *pts, glm::vec3 *xPts) {
for (; numPts--; ++pts, ++xPts) { // NB it is better to do the dot products in double precision
glm::vec3 q; // Use an intermediate variable to allow transformation in-place.
q.x = M[0][0] * pts->x + M[1][0] * pts->y + M[2][0] * pts->z;
q.y = M[0][1] * pts->x + M[1][1] * pts->y + M[2][1] * pts->z;
q.z = M[0][2] * pts->x + M[1][2] * pts->y + M[2][2] * pts->z;
*xPts = glm::normalize(q);
}
}
////////////////////////////////////////////////////////////////////////////////
// GLMesh API
////////////////////////////////////////////////////////////////////////////////
GLMesh::GLMesh(const GLMesh& mesh) {
m_faceVertexCount = mesh.m_faceVertexCount;
m_vertices = mesh.m_vertices;
m_vertexIndices = mesh.m_vertexIndices;
m_texCoords = mesh.m_texCoords;
m_textureIndices = mesh.m_textureIndices;
m_normals = mesh.m_normals;
m_normalIndices = mesh.m_normalIndices;
m_faceNormals = mesh.m_faceNormals;
}
GLMesh::GLMesh() { }
GLMesh::~GLMesh() { }
void GLMesh::resizeVertices(unsigned n) { m_vertices.resize(n); }
void GLMesh::resizeTexCoords(unsigned n) {
m_texCoords.resize(n);
m_textureIndices.resize(n ? unsigned(m_vertexIndices.size()) : 0);
}
void GLMesh::resizeNormals(unsigned n) {
m_normals.resize(n);
m_normalIndices.resize(n ? unsigned(m_vertexIndices.size()) : 0);
}
void GLMesh::resizeFaces(unsigned n) { m_faceVertexCount.resize(n); }
void GLMesh::resizeTriangles(unsigned n) { m_faceVertexCount.clear(); m_faceVertexCount.resize(n, 3); }
void GLMesh::resizeVertexIndices(unsigned n) {
m_vertexIndices.resize(n);
m_textureIndices.resize(m_texCoords.size() ? n : 0);
m_normalIndices.resize(m_normals.size() ? n : 0);
}
void GLMesh::resizeDualIndices(unsigned n) {
m_dualIndices.resize(n);
m_vertexFaceCount.resize(m_vertices.size());
}
void GLMesh::useFaceNormals(bool yes) { m_faceNormals.resize(yes ? numFaces() : 0); }
unsigned GLMesh::numVertices() const { return unsigned(m_vertices.size()); }
unsigned GLMesh::numTexCoords() const { return unsigned(m_texCoords.size()); }
unsigned GLMesh::numNormals() const { return unsigned(m_normals.size()); }
unsigned GLMesh::numFaces() const { return unsigned(m_faceVertexCount.size()); }
unsigned GLMesh::numIndices() const { return unsigned(m_vertexIndices.size()); }
void GLMesh::initPartitions() {
m_partitions.resize(1);
Partition& pt = m_partitions[0];
pt.faceIndex = 0;
pt.vertexIndex = 0;
pt.name.clear();
pt.materialName.clear();
}
NvCV_Status GLMesh::startPartition(const char *name, const char *material, int smooth) {
if (name)
for (const GLMesh::Partition& p : m_partitions)
if (p.name == name)
return NVCV_ERR_SELECTOR;
unsigned i = unsigned(m_partitions.size());
GLMesh::Partition *pt = &m_partitions[i - 1];
if (m_faceVertexCount.size() != pt->faceIndex) {
m_partitions.resize(i + 1);
pt = &m_partitions[i];
pt->faceIndex = unsigned(m_faceVertexCount.size());
pt->vertexIndex = unsigned(m_vertexIndices.size());
}
if (name) pt->name = name;
if (material) pt->materialName = material;
if (smooth >= 0) pt->smooth = smooth;
return NVCV_SUCCESS;
}
NvCV_Status GLMesh::partitionMesh(unsigned numPartitions, const GLMesh::Partition *srcPartition) {
m_partitions.resize(numPartitions);
for (unsigned i = 0; i < numPartitions; ++i, ++srcPartition) {
if (srcPartition->faceIndex >= m_faceVertexCount.size()) {
initPartitions();
return NVCV_ERR_MISMATCH;
}
GLMesh::Partition& pt = m_partitions[i];
pt.faceIndex = srcPartition->faceIndex;
pt.vertexIndex = srcPartition->vertexIndex;
pt.numFaces = srcPartition->numFaces;
pt.numVertexIndices = srcPartition->numVertexIndices;
pt.name = srcPartition->name;
pt.materialName = srcPartition->materialName;
}
//computeStartingVertexIndices();
return NVCV_SUCCESS;
}
NvCV_Status GLMesh::updatePartition(unsigned i, const GLMesh::Partition& update) {
if (i >= m_partitions.size())
return NVCV_ERR_FEATURENOTFOUND;
GLMesh::Partition& pt = m_partitions[i];
pt.faceIndex = update.faceIndex;
pt.vertexIndex = update.vertexIndex;
if (update.name.empty()) pt.name.clear();
else pt.name = update.name;
if (update.materialName.empty()) pt.materialName.clear();
else pt.materialName = update.materialName;
return NVCV_SUCCESS;
}
void GLMesh::computeStartingVertexIndices() {
unsigned vertIx;
std::sort(m_partitions.begin(), m_partitions.end());
const unsigned short *faceCount = m_faceVertexCount.data(), *lastFace;
GLMesh::Partition *pt = m_partitions.data(), *lastPt = pt + m_partitions.size() - 1;
for (vertIx = 0; pt != lastPt; ++pt) {
pt->vertexIndex = vertIx;
for (lastFace = faceCount + (pt[1].faceIndex - pt[0].faceIndex); faceCount != lastFace; ++faceCount)
vertIx += *faceCount;
}
pt->vertexIndex = vertIx;
}
NvCV_Status GLMesh::getPartition(unsigned i, GLMesh::Partition& pt) const {
if (i > m_partitions.size())
return NVCV_ERR_FEATURENOTFOUND;
pt = m_partitions[i];
return NVCV_SUCCESS;
}
bool GLMesh::indicesMatch(const std::vector<unsigned short>& ivecA, const std::vector<unsigned short>& ivecB) {
size_t n = ivecA.size();
const unsigned short *a = ivecA.data(),
*b = ivecB.data();
if (ivecB.size() != n)
return false;
for (; n--; ++a, ++b)
if (*a != *b)
return false;
return true;
}
void GLMesh::assureConsistency() {
if (m_texCoords.size() && (m_textureIndices.size() != m_vertexIndices.size()))
m_textureIndices.resize(m_vertexIndices.size());
if (m_normals.size() && (m_normalIndices.size() != m_vertexIndices.size()))
m_normalIndices.resize(m_vertexIndices.size());
if (m_faceNormals.size() && (m_faceNormals.size() != (m_vertexIndices.size() / 3)))
m_faceNormals.resize(m_vertexIndices.size() / 3);
}
void GLMesh::clear() {
m_faceVertexCount.resize(0);
m_vertices.resize(0);
m_texCoords.resize(0);
m_normals.resize(0);
m_faceNormals.resize(0);
m_vertexIndices.resize(0);
m_textureIndices.resize(0);
m_normalIndices.resize(0);
initPartitions();
}
glm::vec3* GLMesh::getVertices() {
return m_vertices.data();
}
glm::vec2* GLMesh::getTexCoords() {
assureConsistency();
return m_texCoords.size() ? m_texCoords.data() : nullptr;
}
glm::vec3* GLMesh::getNormals() {
assureConsistency();
return m_normals.size() ? m_normals.data() : nullptr;
}
glm::vec3* GLMesh::getFaceNormals() {
assureConsistency();
return m_faceNormals.size() ? m_faceNormals.data() : nullptr;
}
const glm::vec3* GLMesh::getVertices() const { return const_cast<GLMesh*>(this)->getVertices(); }
const glm::vec2* GLMesh::getTexCoords() const { return const_cast<GLMesh*>(this)->getTexCoords(); }
const glm::vec3* GLMesh::getNormals() const { return const_cast<GLMesh*>(this)->getNormals(); }
const glm::vec3* GLMesh::getFaceNormals() const { return const_cast<GLMesh*>(this)->getFaceNormals(); }
unsigned short* GLMesh::getFaceVertexCounts() { return m_faceVertexCount.data(); }
unsigned short* GLMesh::getVertexIndices() { return m_vertexIndices.data(); }
unsigned short* GLMesh::getTextureIndices() {
return m_textureIndices.size() ? m_textureIndices.data() : nullptr;
}
unsigned short* GLMesh::getNormalIndices() {
return m_normalIndices.size() ? m_normalIndices.data() : nullptr;
}
const unsigned short* GLMesh::getFaceVertexCounts() const { return m_faceVertexCount.data(); }
const unsigned short* GLMesh::getVertexIndices() const { return m_vertexIndices.data(); }
const unsigned short* GLMesh::getTextureIndices() const { return const_cast<GLMesh*>(this)->getTextureIndices(); }
const unsigned short* GLMesh::getNormalIndices() const { return const_cast<GLMesh*>(this)->getNormalIndices(); }
unsigned short* GLMesh::getVertexFaceCounts() { return m_vertexFaceCount.data(); }
unsigned short* GLMesh::getDualIndices() {
return m_dualIndices.size() ? m_dualIndices.data() : nullptr;
}
const unsigned short* GLMesh::getVertexFaceCounts() const { return const_cast<GLMesh*>(this)->getVertexFaceCounts(); }
const unsigned short* GLMesh::getDualIndices() const { return const_cast<GLMesh*>(this)->getDualIndices(); }
void GLMesh::addVertex(float x, float y, float z) { m_vertices.emplace_back(glm::vec3{ x, y, z }); }
void GLMesh::addTexCoord(float u, float v) { m_texCoords.emplace_back(glm::vec2{ u, v }); }
void GLMesh::addNormal(float x, float y, float z) { m_normals.emplace_back(glm::vec3{ x, y, z }); }
void GLMesh::addVertices(unsigned numVertices, const float *vertices) {
size_t preVertices = m_vertices.size();
m_vertices.resize(preVertices + numVertices);
memcpy(m_vertices.data() + preVertices, vertices, numVertices * sizeof(*m_vertices.data()));
}
void GLMesh::addTexCoords(unsigned numTexCoords, const float *texCoords) {
size_t preTexCoords = m_texCoords.size();
m_texCoords.resize(preTexCoords + numTexCoords);
memcpy(m_texCoords.data() + preTexCoords, texCoords, numTexCoords * sizeof(*m_texCoords.data()));
}
void GLMesh::addNormals(unsigned numNormals, const float *normals) {
size_t preNormals = m_normals.size();
m_normals.resize(preNormals + numNormals);
memcpy(m_normals.data() + preNormals, normals, numNormals * sizeof(*m_normals.data()));
}
void GLMesh::addFace(unsigned numVertices, const unsigned short *vertexIndices,
const unsigned short *textureIndices, const unsigned short *normalIndices)
{
size_t n;
m_faceVertexCount.push_back((unsigned short)numVertices);
if (vertexIndices) {
n = m_vertexIndices.size();
m_vertexIndices.resize(n + numVertices);
memcpy(m_vertexIndices.data() + n, vertexIndices, numVertices * sizeof(*vertexIndices));
}
if (textureIndices) {
n = m_textureIndices.size();
m_textureIndices.resize(n + numVertices);
memcpy(m_textureIndices.data() + n, textureIndices, numVertices * sizeof(*textureIndices));
}
if (normalIndices) {
n = m_normalIndices.size();
m_normalIndices.resize(n + numVertices);
memcpy(m_normalIndices.data() + n, normalIndices, numVertices * sizeof(*normalIndices));
}
}
void GLMesh::addFaces(unsigned numFaces, unsigned numVerticesPerFace, const unsigned short *vertexIndices,
const unsigned short *textureIndices, const unsigned short *normalIndices)
{
size_t numIndices = numFaces * numVerticesPerFace,
indexBytes = numIndices * sizeof(*vertexIndices);
size_t n;
n = m_faceVertexCount.size();
m_faceVertexCount.resize(n + numFaces, (unsigned short)numVerticesPerFace);
if (vertexIndices) {
n = m_vertexIndices.size();
m_vertexIndices.resize(n + numIndices);
memcpy(m_vertexIndices.data() + n, vertexIndices, indexBytes);
}
if (textureIndices) {
n = m_textureIndices.size();
m_textureIndices.resize(n + numIndices);
memcpy(m_textureIndices.data() + n, textureIndices, indexBytes);
}
if (normalIndices) {
n = m_normalIndices.size();
m_normalIndices.resize(n + numIndices);
memcpy(m_normalIndices.data() + n, normalIndices, indexBytes);
}
}
bool GLMesh::isTriMesh() const {
unsigned n;
const unsigned short *ix;
for (n = numFaces(), ix = getFaceVertexCounts(); n--; ++ix)
if (*ix != 3)
return false;
return true;
}
bool GLMesh::isQuadMesh() const {
unsigned n;
const unsigned short *ix;
for (n = numFaces(), ix = getFaceVertexCounts(); n--; ++ix)
if (*ix != 4)
return false;
return true;
}
bool GLMesh::isTriQuadMesh() const {
unsigned n;
const unsigned short *ix;
for (n = numFaces(), ix = getFaceVertexCounts(); n--; ++ix)
if (*ix > 4)
return false;
return true;
}
void GLMesh::transform(const glm::mat4x4& M) {
TransformPoints (M, unsigned(m_vertices.size()), m_vertices.data(), m_vertices.data());
TransformNormals(M, unsigned(m_normals.size()), m_normals.data(), m_normals.data());
TransformNormals(M, unsigned(m_faceNormals.size()), m_faceNormals.data(), m_faceNormals.data());
}
unsigned GLMesh::numPartitions() const {
return unsigned(m_partitions.size());
}
void GLMesh::finishPartitioning() {
computeStartingVertexIndices();
}
NvCV_Status GLMesh::setMaterial(const char *name) {
Partition pt{};
pt.materialName = name;
return partitionMesh(1, &pt);
}
void GLMesh::computeFaceNormals(int weighted) {
const glm::vec3 *vertices = m_vertices.data();
const unsigned short *numVertices = m_faceVertexCount.data();
glm::vec3 *nrm, *nrmEnd;
const unsigned short *ix;
const glm::vec3 *p0, *p1, *p2;
glm::vec3 n;
float mag;
useFaceNormals(true);
nrm = getFaceNormals();
nrmEnd = nrm + numFaces();
ix = m_vertexIndices.data();
for (; nrm != nrmEnd; ++nrm, ix += *numVertices++) {
if (3 == *numVertices) {
p0 = &vertices[ix[0]];
p1 = &vertices[ix[1]];
p2 = &vertices[ix[2]];
n = glm::cross((*p1 - *p0), (*p2 - *p0));
}
else {
unsigned numPts = *numVertices;
unsigned i;
p0 = &vertices[ix[numPts - 1]];
n = { 0.f, 0.f, 0.f };
for (i = 0, p0 = &vertices[ix[numPts - 1]]; i < numPts; ++i, p0 = p1) {
p1 = &vertices[ix[i]];
n.x -= (p1->y - p0->y) * (p1->z + p0->z);
n.y -= (p1->z - p0->z) * (p1->x + p0->x);
n.z -= (p1->x - p0->x) * (p1->y + p0->y);
}
}
mag = glm::length(n);
if (weighted == 0) { if (mag) n /= mag; } // Unit vector
else if (weighted > 0) { n *= 0.5f; } // Area-weighted normal
else /* weighted < 0 */ { if (mag) n /= mag * mag * 0.25f; } // Inverse-area-weighted vector
*nrm = n;
}
}
void GLMesh::computeVertexNormals(int weighted) {
glm::vec3 nrm;
computeFaceNormals(weighted);
if (m_normals.size() != m_vertices.size()) {
m_normals.resize(m_vertices.size());
m_normalIndices = m_vertexIndices;
}
if (m_vertexFaceCount.size() == m_vertices.size()) { // We already have the dual topology
glm::vec3 *n, *nEnd;
unsigned short *numPolys, *ix, *ixEnd;
for (nEnd = (n = m_normals.data()) + m_vertexFaceCount.size(), numPolys = m_vertexFaceCount.data(), ix = m_dualIndices.data(); n != nEnd; ++n, ++numPolys) {
for (ixEnd = ix + *numPolys, nrm = { 0.f, 0.f, 0.f }; ix != ixEnd; ++ix)
nrm += m_faceNormals[*ix];
*n = glm::normalize(nrm);
}
}
}
void GLMesh::BoundingBox::unionPoint(const glm::vec3& pt) { /* This works with NaN's */
if (!(_box[0].x < pt.x)) _box[0].x = pt.x; if (!(_box[1].x > pt.x)) _box[1].x = pt.x;
if (!(_box[0].y < pt.y)) _box[0].y = pt.y; if (!(_box[1].y > pt.y)) _box[1].y = pt.y;
if (!(_box[0].z < pt.z)) _box[0].z = pt.z; if (!(_box[1].z > pt.z)) _box[1].z = pt.z;
}
void GLMesh::BoundingBox::set(unsigned numPts, const glm::vec3 *pts) {
_box[0] = pts[0];
_box[1] = pts[0];
for (++pts; --numPts; ++pts)
unionPoint(*pts);
}
void GLMesh::BoundingBox::set(unsigned numPts, const glm::vec3 *pts, const glm::mat4x4& M) {
memset(this, -1, sizeof(*this)); // Set to NaN
for (; numPts--; ++pts) {
glm::vec3 q;
TransformPoints(M, 1, pts, &q);
unionPoint(q);
}
}
void GLMesh::BoundingSphere::set(unsigned numPts, const glm::vec3 *pts) {
/* Ritter algorithm */
float d, d0;
glm::vec3 p0, p1;
const glm::vec3 *pp, *pEnd = pts + numPts;
p0 = p1 = pts[0]; // Choose one point
for (pp = pts + 1, d0 = 0; pp != pEnd; ++pp) {
if (!(d0 > (d = glm::distance(p0, *pp)))) {
d0 = d;
p1 = *pp; // Find the furthest point
}
}
p0 = p1; // Choose that furthest point
for (pp = pts, d0 = 0; pp != pEnd; ++pp) {
if (!(d0 > (d = glm::distance(p0, *pp)))) {
d0 = d;
p1 = *pp; // Find the furthest point from that
}
}
_radius = d0 * .5f; // Make a sphere ...
_center = (p1 - p0) * .5f + p0; // ... from these furthest points
bool done;
// Accommodate every outlier as we encounter them
do {
done = true;
for (pp = pts; pp != pEnd; ++pp) { // Check that all points are in this sphere
glm::vec3 v = *pp - _center;
d0 = glm::length(v);
if (d0 > _radius) { // If not, ...
d = (d0 - _radius) * .5f;
_center += v * (d / d0); // ... adjust the sphere center ...
_radius += d; // ... and radius to accommodate this new point
done = false;
}
}
} while (!done);
}
void GLMesh::BoundingSphere::set(unsigned numPts, const glm::vec3 *pts, const glm::mat4x4& M) {
std::vector<glm::vec3> xPts(numPts);
TransformPoints(M, numPts, pts, xPts.data());
set(numPts, xPts.data());
}
void GLMesh::getBoundingBox(BoundingBox *bbox, const glm::mat4x4 *M) const {
if (M) bbox->set(unsigned(m_vertices.size()), m_vertices.data(), *M);
else bbox->set(unsigned(m_vertices.size()), m_vertices.data());
}
void GLMesh::getBoundingSphere(BoundingSphere *bsph, const glm::mat4x4 *M) const {
if (M) bsph->set(unsigned(m_vertices.size()), m_vertices.data(), *M);
else bsph->set(unsigned(m_vertices.size()), m_vertices.data());
}
unsigned GLMesh::notRenderable(unsigned /*options*/) const {
unsigned result = RENDERABLE;
if (!isTriMesh())
result |= NOT_TRIMESH;
if (0 != m_textureIndices.size() && !indicesMatch(m_vertexIndices, m_textureIndices))
result |= COMPLEX_TOPOLOGY;
if (0 != m_normalIndices.size() && !indicesMatch(m_vertexIndices, m_normalIndices))
result |= COMPLEX_TOPOLOGY;
return result;
}
NvCV_Status GLMesh::append(const GLMesh& other, const glm::mat4x4 *M) {
if ((!numTexCoords() != !other.numTexCoords()) || (!numNormals() != !other.numNormals()))
return NVCV_ERR_MISMATCH;
unsigned indexOffset = numVertices(),
thisCount = numIndices(),
otherCount = other.numIndices(),
i;
// Add vertices
addVertices(other.numVertices(), &other.getVertices()->x);
if (M)
TransformPoints(*M, other.numVertices(), getVertices() + indexOffset, getVertices() + indexOffset);
if (0 != (i = other.numTexCoords()))
addTexCoords(i, &other.getTexCoords()->x);
if (0 != (i = other.numNormals())) {
addNormals(i, &other.getNormals()->x);
if (M)
TransformNormals(*M, other.numNormals(), getNormals() + indexOffset, getNormals() + indexOffset);
}
{ // Add indices
const unsigned short *nvx = other.getFaceVertexCounts(),
*vix = other.getVertexIndices(),
*tix = other.getTextureIndices(),
*nix = other.getNormalIndices();
for (i = other.numFaces(); i--; ++nvx) {
addFace(*nvx, vix, tix, nix);
vix += *nvx;
if (tix) tix += *nvx;
if (nix) nix += *nvx;
}
}
{ // Offset the new indices
unsigned short *ix;
for (i = otherCount, ix = getVertexIndices() + thisCount; i--; ++ix)
*ix += (unsigned short)indexOffset;
if (nullptr != (ix = getTextureIndices()))
for (i = otherCount, ix += thisCount; i--; ++ix)
*ix += (unsigned short)indexOffset;
if (nullptr != (ix = getNormalIndices()))
for (i = otherCount, ix += thisCount; i--; ++ix)
*ix += (unsigned short)indexOffset;
}
return NVCV_SUCCESS;
}

280
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/*###############################################################################
#
# Copyright 2021 NVIDIA Corporation
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of
# this software and associated documentation files (the "Software"), to deal in
# the Software without restriction, including without limitation the rights to
# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
# the Software, and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
###############################################################################*/
#ifndef __GLMESH_H
#define __GLMESH_H
#include <string>
#include <vector>
#include "glm/glm.hpp"
#include "nvCVStatus.h"
class GLMesh {
public:
struct Partition {
unsigned faceIndex; ///< The index of the first face in the partition.
unsigned numFaces; ///< The number of faces in the partition.
unsigned vertexIndex; ///< The index of the first topological vertex in the partition.
unsigned numVertexIndices; ///< The number of topological vertices in the partition.
std::string name; ///< The name of the partition.
std::string materialName; ///< The name of the material assigned to the partition.
int smooth; ///< The smoothing group > 0; no smoothing == 0; unassigned < 0.
Partition() { smooth = -1; }
bool operator<(const Partition& pt) const { return faceIndex < pt.faceIndex; }
void finishPartitioning();
};
class BoundingBox {
public:
void unionPoint(const glm::vec3& pt);
void set(unsigned numPts, const glm::vec3* pts);
void set(unsigned numPts, const glm::vec3* pts, const glm::mat4x4& M);
glm::vec3& min() { return _box[0]; }
glm::vec3& max() { return _box[1]; }
const glm::vec3& min() const { return _box[0]; }
const glm::vec3& max() const { return _box[1]; }
glm::vec3 center() const { return (_box[0] + _box[1]) * 0.5f; }
private:
glm::vec3 _box[2];
};
class BoundingSphere {
public:
void set(unsigned numPts, const glm::vec3* pts);
void set(unsigned numPts, const glm::vec3* pts, const glm::mat4x4& M);
glm::vec3& center() { return _center; }
const glm::vec3& center() const { return _center; }
float& radius() { return _radius; }
float radius() const { return _radius; }
private:
glm::vec3 _center;
float _radius;
};
enum { BOUNDARY = 0xFFFFu }; ///< An index that indicates the boundary
GLMesh();
GLMesh(const GLMesh& mesh);
~GLMesh();
/// Get the number of faces.
/// @return the number of faces.
unsigned numFaces() const;
/// Get the number of XYZ vertices.
/// @return the number of XYZ vertices.
unsigned numVertices() const;
/// Get the number of UV texture coordinates.
/// @return the number of UV texture coordinates.
unsigned numTexCoords() const;
/// Get the number of XYZ normals.
/// @return the number of XYZ normals.
unsigned numNormals() const;
/// Get the number of vertex indices.
/// @return the number of vertex indices.
unsigned numIndices() const;
/// Evaluate whether the mesh is composed only of triangles.
/// @return true if all faces have 3 vertices; false otherwise.
bool isTriMesh() const;
/// Evaluate whether the mesh is composed only of quadrilaterals.
/// @return true if all faces have 4 vertices; false otherwise.
bool isQuadMesh() const;
/// Evaluate whether the mesh is composed only of triangles and quadrilaterals.
/// @return true if no face has greater than 4 vertices; false otherwise.
bool isTriQuadMesh() const;
void resizeVertices(unsigned numVert);
void resizeTexCoords(unsigned numTexCoord);
void resizeNormals(unsigned numNorm);
void resizeFaces(unsigned numFace);
void resizeTriangles(unsigned numTriangles);
void resizeVertexIndices(unsigned numIndices);
void resizeDualIndices(unsigned numIndices);
void clear();
glm::vec3* getVertices(); ///< Get the vertices. @return a pointer to the vertices.
const glm::vec3* getVertices() const; ///< Get the vertices. @return a pointer to the vertices.
glm::vec2* getTexCoords(); ///< Get the texture coordinates. @return a pointer to the texture coordinates.
const glm::vec2* getTexCoords() const; ///< Get the texture coordinates. @return a pointer to the texture coordinates.
glm::vec3* getNormals(); ///< Get the vertex normals. @return a pointer to the vertex normals.
const glm::vec3* getNormals() const; ///< Get the vertex normals. @return a pointer to the vertex normals.
glm::vec3* getFaceNormals(); ///< Get the face normals, computed with computeFaceNormals(). @return a pointer to the vertex normals.
const glm::vec3* getFaceNormals() const; ///< Get the face normals, computed with computeFaceNormals(). @return a pointer to the vertex normals.
unsigned short* getFaceVertexCounts(); ///< Get the vertex counts for each face, in the primal topology. @return an array of vertex counts, one per face.
const unsigned short* getFaceVertexCounts() const; ///< Get the vertex counts for each face, in the primal topology. @return an array of vertex counts, one per face.
unsigned short* getVertexIndices(); ///< Get the vertex indices for each face: the primal topology. @return a pointer to the vertex indices.
const unsigned short* getVertexIndices() const; ///< Get the vertex indices for each face: the primal topology. @return a pointer to the vertex indices.
unsigned short* getTextureIndices(); ///< Get the texture indices for each face: the primal topology. @return a pointer to the texture indices.
const unsigned short* getTextureIndices() const; ///< Get the texture indices for each face: the primal topology. @return a pointer to the texture indices.
unsigned short* getNormalIndices(); ///< Get the normal indices for each face: the primal topology. @return a pointer to the normal indices.
const unsigned short* getNormalIndices() const; ///< Get the normal indices for each face: the primal topology. @return a pointer to the normal indices.
unsigned short* getVertexFaceCounts(); ///< Get the face counts for each vertex, in the dual topology. @return an array of face counts, one per vertex.
const unsigned short* getVertexFaceCounts() const; ///< Get the face counts for each vertex, in the dual topology. @return an array of face counts, one per vertex.
unsigned short* getDualIndices(); ///< Get the face indices for each vertex: the dual topology. @return a pointer to the dual face indices.
const unsigned short* getDualIndices() const; ///< Get the face indices for each vertex: the dual topology. @return a pointer to the dual face indices.
void addVertex(float x, float y, float z);
void addTexCoord(float u, float v);
void addNormal(float x, float y, float z);
void addVertices(unsigned numVertices, const float* vertices);
void addTexCoords(unsigned numTexCoords, const float* texCoords);
void addNormals(unsigned numNormals, const float* normals);
void addFace(unsigned numVertices, const unsigned short* vertexIndices,
const unsigned short* textureIndices, const unsigned short* normalIndices);
void addFaces(unsigned numFaces, unsigned numVerticesPerFace, const unsigned short* vertexIndices,
const unsigned short* textureIndices, const unsigned short* normalIndices);
/// Compute the normals per face.
/// @param[in] specify the weighing for the normals. In all cases, the zero vector will
/// be returned for faces with zero area.
/// 0: unit vectors.
/// +1: vectors weighted by the area.
/// -1: vectors weighted by the reciprocal of the area.
void computeFaceNormals(int weighted = 0);
/// Compute the vertex normals. The face normals will be computed in the process.
/// @param[in] weighted Determines the weighting used to combine the face normals:
/// 0: all incident faces normals will have the same weight.
/// -1: the normals will be weighted by inverse area of the face.
void computeVertexNormals(int weighted = 0);
void transform(const glm::mat4x4& M);
/// Get the number of partitions.
/// There is always at least one, which may neither have a name nor a material.
/// @return the number of partitions.
unsigned numPartitions() const;
/// The easiest way to partition a mesh: call this after all vertices and attributes
/// are recorded, and before the first face of each partition is recorded.
/// @param[in] name the name of the new partition.
/// @param[in] material the name of the material to be used in the new partition.
/// @param[in] smooth {-1, 0, 1} means {unspecified, not smooth, smooth}.
/// @return NvCV_StatusNone if the partition was retrieved successfully.
/// @return NvCV_StatusDuplicate if a partition with the same name already exists.
NvCV_Status startPartition(const char* name, const char* material, int smooth = -1);
/// Get the specified partition.
/// @param[in] i the index of the partition to retrieve.
/// @param[out] pt a place to store the specified partition.
/// @return NvCV_StatusNone if the partition was retrieved successfully.
/// @return NvCV_StatusTooBig if the face index was >= the number of faces.
NvCV_Status getPartition(unsigned i, Partition& pt) const;
/// Update the specified partition.
/// The function finishPartitioning() should be called
/// after the last updatePartition() has been called.
/// @param[in] i the index of the partition.
/// @param[in] partition the desired value for the specified partition.
/// @return NvCV_StatusNone if the partition was updated successfully.
/// @return NvCV_StatusTooBig if the face index was >= the number of faces.
NvCV_Status updatePartition(unsigned i, const Partition& partition);
/// Partition the mesh.
/// @param[in] numPartitions the number of partitions.
/// @param[in] partitions the array of partitions. Only { faceIndex, name, and
/// materialName need be supplied}; the rest are computed.
/// @return NvCV_StatusNone if the partition was executed successfully.
/// @return NvCV_StatusTooBig if any faceIndex was >= the number of faces.
NvCV_Status partitionMesh(unsigned numPartitions, const Partition* partitions);
/// The last step after partitioning with updatePartition().
/// This is not needed if the partitions were created solely with the use of
/// startPartition() or PartitionMesh().
/// @note The partitions may be reordered (sorted) after calling finishPartitioning().
void finishPartitioning();
/// Set a single material for the whole mesh.
/// @param[in] name the name of the material.
NvCV_Status setMaterial(const char* name);
/// Get the bounding box, optionally with an affine transformation.
/// @param[out] bbox a place to store the bounding box.
/// @param[in] M pointer to a modeling matrix; NULL implies the identity.
void getBoundingBox(BoundingBox* bbox, const glm::mat4x4* M = nullptr) const;
/// Get the bounding box, optionally with an affine transformation.
/// @param[out] bbox a place to store the bounding box.
/// @param[in] M pointer to a modeling matrix; NULL implies the identity.
void getBoundingSphere(BoundingSphere* bsph, const glm::mat4x4* M = nullptr) const;
/// Query whether the PolyMesh is not renderable easily by Open GL.
/// Since the more typical query would be whether it is renderable instead,
/// this seems like negative logic, but this choice was made to return a bit vector
/// indicating the reason that the Polymesh is not renderable.
/// @param[in] options Rendering options; currently ignored.
/// @return RENDERABLE if the PolyMesh is renderable. Otherwise a bit vector of:
/// NOT_TRIMESH if some faces are not triangular;
/// COMPLEX_TOPOLOGY if the vertex attribute topology is inconsistent;
unsigned notRenderable(unsigned options) const;
/// Append another mesh.
/// @param[in] mesh the other mesh.
/// @param[in] M an optional affine transform
NvCV_Status append(const GLMesh& mesh, const glm::mat4x4* M = nullptr);
/// Bit vector components indicating non-renderability.
enum {
RENDERABLE = 0x0, ///< The PolyMesh is renderable.
NOT_TRIMESH = 0x1, ///< Some faces are not triangular.
COMPLEX_TOPOLOGY = 0x2 ///< The vertex topology is not consistent.
};
private:
void initPartitions();
void computeStartingVertexIndices();
static bool indicesMatch(const std::vector<unsigned short>& ivecA, const std::vector<unsigned short>& ivecB);
void assureConsistency();
void useFaceNormals(bool yes);
std::vector<unsigned short> m_faceVertexCount;
std::vector<glm::vec3> m_vertices;
std::vector<unsigned short> m_vertexIndices;
std::vector<glm::vec2> m_texCoords;
std::vector<unsigned short> m_textureIndices;
std::vector<glm::vec3> m_normals;
std::vector<unsigned short> m_normalIndices;
std::vector<glm::vec3> m_faceNormals;
std::vector<Partition> m_partitions;
std::vector<unsigned short> m_vertexFaceCount; // the number of faces surrounding each vertex
std::vector<unsigned short> m_dualIndices; // the face indices for each vertex
};
#endif // __GLMESH_H

632
samples/ExpressionApp/BackEndOpenGL/GLShaders.cpp Normal file
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/*###############################################################################
#
# Copyright 2016-2021 NVIDIA Corporation
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of
# this software and associated documentation files (the "Software"), to deal in
# the Software without restriction, including without limitation the rights to
# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
# the Software, and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
###############################################################################*/
#ifdef _MSC_VER
#include "glad/glad.h"
#else
#include <GLES3/gl3.h>
#endif // _MSC_VER
#include <string>
#include <stdint.h>
#include "GLShaders.h"
enum {
myErrNone = 0,
myErrShader = -1,
myErrProgram = -2,
myErrTexture = -3,
};
#define BAIL_IF_ERR(err) do { if ((err)) { goto bail; } } while(0)
#define _STRINGIFY_(token) #token
#define STRINGIFY(token) _STRINGIFY_(token)
#define MAYBE_UNUSED(token) if (token){}
/****************************************************************************//**
* Print Shader Log.
* \param[in] id the ID of the shader.
* \param[in] type either GL_VERTEX_SHADER or GL_FRAGMENT_SHADER.
* \param[in] shader the shader source code.
********************************************************************************/
static void PrintShaderLog(GLuint id, GLenum type, const char *shader) {
GLsizei msgLength;
std::string errMsg;
glGetShaderiv(id, GL_INFO_LOG_LENGTH, &msgLength);
errMsg.resize(msgLength);
glGetShaderInfoLog(id, msgLength, &msgLength, &errMsg[0]);
fprintf(stderr, "\nShader Log:\n%sfor %s Shader:\n%s\n", errMsg.c_str(),
((type == GL_VERTEX_SHADER) ? "Vertex" : "Fragment"), shader);
}
/****************************************************************************//**
* Print Program Log.
* \param[in] id the id of the program.
********************************************************************************/
static void PrintProgramLog(GLuint id) {
GLsizei msgLength;
std::string errMsg;
glGetProgramiv(id, GL_INFO_LOG_LENGTH, &msgLength);
errMsg.resize(msgLength);
glGetProgramInfoLog(id, msgLength, &msgLength, &errMsg[0]);
fprintf(stderr, "\nProgram Log:\n%s\n", errMsg.c_str());
}
/****************************************************************************//**
* NewShader
********************************************************************************/
static int NewShader(const char *shaderStr, GLenum type, GLuint *shaderID) {
GLuint id;
GLint result;
*shaderID = 0;
id = glCreateShader(type);
glShaderSource(id, 1, &shaderStr, NULL);
glCompileShader(id);
glGetShaderiv(id, GL_COMPILE_STATUS, &result);
if (result) {
*shaderID = id;
return myErrNone;
}
else {
PrintShaderLog(id, type, shaderStr);
glDeleteShader(id);
return myErrShader;
}
}
/****************************************************************************//**
* NewProgram
********************************************************************************/
static int NewProgram(GLuint vertexShader, GLuint fragmentShader, GLuint *progID) {
GLint result;
GLuint id;
*progID = 0;
id = glCreateProgram();
glAttachShader(id, vertexShader);
glAttachShader(id, fragmentShader);
glLinkProgram(id);
glGetProgramiv(id, GL_LINK_STATUS, &result);
if (result) {
*progID = id;
return myErrNone;
}
else {
PrintProgramLog(id);
glDeleteProgram(id);
return myErrProgram;
}
}
/****************************************************************************//**
* IndexTypeFromSize
********************************************************************************/
static GLenum IndexTypeFromSize(unsigned indexSize) {
return (indexSize < 2) ? GL_UNSIGNED_BYTE
: (indexSize == 2) ? GL_UNSIGNED_SHORT
: GL_UNSIGNED_INT;
}
/********************************************************************************
********************************************************************************
***** SMOOTH RENDERER *****
********************************************************************************
********************************************************************************/
/********************************************************************************
* Shaders
********************************************************************************/
const char SmoothRenderer::_vertexShader[] =
"uniform mat4 MVP;\n"
"attribute vec3 vCol;\n"
"attribute vec3 vPos;\n"
"varying vec3 color;\n"
"void main()\n"
"{\n"
" gl_Position = MVP * vec4(vPos, 1.0);\n"
" color = vCol;\n"
"}\n";
const char SmoothRenderer::_fragmentShader[] =
"varying vec3 color;\n"
"void main()\n"
"{\n"
" gl_FragColor = vec4(color, 1.0);\n"
"}\n";
/********************************************************************************
* startup
********************************************************************************/
int SmoothRenderer::startup() {
int err = myErrNone;
GLuint vertexShader = 0, fragmentShader = 0;
_programID = 0;
BAIL_IF_ERR(err = NewShader(_vertexShader, GL_VERTEX_SHADER, &vertexShader));
BAIL_IF_ERR(err = NewShader(_fragmentShader, GL_FRAGMENT_SHADER, &fragmentShader));
BAIL_IF_ERR(err = NewProgram(vertexShader, fragmentShader, &_programID));
_maxtrixID = glGetUniformLocation(_programID, "MVP");
_vtxPosID = glGetAttribLocation(_programID, "vPos");
_vtxColID = glGetAttribLocation(_programID, "vCol");
err = (-1 == _maxtrixID || -1 == _vtxPosID || -1 == _vtxColID) ? myErrShader : myErrNone;
bail:
if (myErrNone != err) shutdown();
if (fragmentShader) glDeleteShader(fragmentShader);
if (vertexShader) glDeleteShader(vertexShader);
return err;
}
/********************************************************************************
* use
********************************************************************************/
int SmoothRenderer::use() {
if (0 == _programID)
return myErrProgram;
glUseProgram(_programID);
return myErrNone;
}
/********************************************************************************
* drawElements, from user memory
********************************************************************************/
void SmoothRenderer::drawElements(GLsizei numVertices, const GLfloat *positions, const GLfloat *colors,
GLenum graphicsMode, GLsizei indexCount, GLenum indexType, const GLvoid *indices, const GLfloat *M
) {
MAYBE_UNUSED(numVertices);
glUseProgram(_programID);
if (M)
glUniformMatrix4fv(_maxtrixID, 1, GL_FALSE, M);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
if (colors) { /* Separate array for position and color */
glEnableVertexAttribArray(_vtxPosID);
glVertexAttribPointer(_vtxPosID, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(*positions), positions);
glEnableVertexAttribArray(_vtxColID);
glVertexAttribPointer(_vtxColID, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(*colors), colors);
}
else { /* One contiguous array for position and color */
glEnableVertexAttribArray(_vtxPosID);
glVertexAttribPointer(_vtxPosID, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(*positions), positions);
glEnableVertexAttribArray(_vtxColID);
glVertexAttribPointer(_vtxColID, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(*positions), positions + 3);
}
glDrawElements(graphicsMode, indexCount, indexType, indices);
}
/********************************************************************************
* drawElements, from buffer objects
********************************************************************************/
void SmoothRenderer::drawElements(GLuint vtxBuf, unsigned posOff, unsigned colOff,
GLenum graphicsMode, GLsizei numIndices, unsigned indexSize, GLuint topoBuf, const GLfloat *M
) {
GLenum err;
glUseProgram(_programID);
if (M)
glUniformMatrix4fv(_maxtrixID, 1, GL_FALSE, M);
glBindBuffer(GL_ARRAY_BUFFER, vtxBuf);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, topoBuf);
if (!(colOff == 12 || colOff == 0)) { /* Separate array for position and color */
glEnableVertexAttribArray(_vtxPosID);
glVertexAttribPointer(_vtxPosID, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(float), (void*)(intptr_t)posOff);
glEnableVertexAttribArray(_vtxColID);
glVertexAttribPointer(_vtxColID, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(float), (void*)(intptr_t)colOff);
}
else { /* One contiguous array for position and color */
glEnableVertexAttribArray(_vtxPosID);
glVertexAttribPointer(_vtxPosID, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(float), (void*)(intptr_t)(posOff + 0 * sizeof(float)));
glEnableVertexAttribArray(_vtxColID);
glVertexAttribPointer(_vtxColID, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(float), (void*)(intptr_t)(posOff + 3 * sizeof(float)));
err = glGetError(); if (err) printf("glVertexAttribPointer returns %d\n", err);
}
glDrawElements(graphicsMode, numIndices, IndexTypeFromSize(indexSize), (void*)0);
}
/********************************************************************************
********************************************************************************
***** TEXTURE RENDERER *****
********************************************************************************
********************************************************************************/
/********************************************************************************
* shaders
********************************************************************************/
const char TextureRenderer::_vertexShader[] =
"uniform mat4 MVP;\n" // Model, view, projection matrices, concatenated.
"attribute vec3 vPos;\n" // Vertex position
"attribute vec2 vTex;\n" // Vertex texture coordinate
"varying vec2 texCoord;\n" // Interpolated texture coordinate
"void main()\n"
"{\n"
" gl_Position = MVP * vec4(vPos, 1.0);\n"
" texCoord = vTex;\n"
"}\n";
const char TextureRenderer::_fragmentShader[] =
"uniform sampler2D tex;\n"
"varying vec2 texCoord;\n" // Interpolated texture coordinate
"void main()\n"
"{\n"
" gl_FragColor = texture2D(tex, texCoord);\n"
"}\n";
/********************************************************************************
* startup
********************************************************************************/
int TextureRenderer::startup() {
int err = myErrNone;
GLuint vertexShader = 0, fragmentShader = 0;
if (_programID)
return myErrNone;
_programID = 0;
BAIL_IF_ERR(err = NewShader(_vertexShader, GL_VERTEX_SHADER, &vertexShader));
BAIL_IF_ERR(err = NewShader(_fragmentShader, GL_FRAGMENT_SHADER, &fragmentShader));
BAIL_IF_ERR(err = NewProgram(vertexShader, fragmentShader, &_programID));
_maxtrixID = _vtxPosID = _vtxTexID = -1;
_maxtrixID = glGetUniformLocation(_programID, "MVP");
_vtxPosID = glGetAttribLocation(_programID, "vPos");
_vtxTexID = glGetAttribLocation(_programID, "vTex");
err = (-1 == _maxtrixID || -1 == _vtxPosID || -1 == _vtxTexID) ? myErrShader : myErrNone;
bail:
if (myErrNone != err) shutdown();
if (fragmentShader) glDeleteShader(fragmentShader);
if (vertexShader) glDeleteShader(vertexShader);
return err;
}
/********************************************************************************
* use
********************************************************************************/
int TextureRenderer::use() {
if (0 == _programID)
return myErrProgram;
glUseProgram(_programID);
return myErrNone;
}
/********************************************************************************
* drawElements, from user buffers
********************************************************************************/
void TextureRenderer::drawElements(GLsizei numVertices, const GLfloat *xyz, const GLfloat *uv,
GLenum graphicsMode, GLsizei indexCount, GLenum indexType, const GLvoid *indices, GLuint texID ,const GLfloat *M
) {
MAYBE_UNUSED(numVertices);
glUseProgram(_programID);
if (M)
glUniformMatrix4fv(_maxtrixID, 1, GL_FALSE, M);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glBindTexture(GL_TEXTURE_2D, texID);
if (uv) { /* Separate array for position and color */
glEnableVertexAttribArray(_vtxPosID);
glVertexAttribPointer(_vtxPosID, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(*xyz), xyz);
glEnableVertexAttribArray(_vtxTexID);
glVertexAttribPointer(_vtxTexID, 2, GL_FLOAT, GL_FALSE, 2 * sizeof(*uv), uv);
}
else { /* One contiguous array for position and color */
glEnableVertexAttribArray(_vtxPosID);
glVertexAttribPointer(_vtxPosID, 3, GL_FLOAT, GL_FALSE, 5 * sizeof(*xyz), xyz);
glEnableVertexAttribArray(_vtxTexID);
glVertexAttribPointer(_vtxTexID, 2, GL_FLOAT, GL_FALSE, 5 * sizeof(*xyz), xyz + 3);
}
glDrawElements(graphicsMode, indexCount, indexType, indices);
}
/********************************************************************************
* drawElements, from buffer objects
********************************************************************************/
void TextureRenderer::drawElements(
GLuint vtxBuf, unsigned xyzOff, unsigned uvOff, GLenum graphicsMode,
GLsizei numIndices, GLenum indexSize, GLuint indexBuf, GLuint texID, const GLfloat *M
) {
GLenum err;
glUseProgram(_programID);
if (M)
glUniformMatrix4fv(_maxtrixID, 1, GL_FALSE, M);
glBindBuffer(GL_ARRAY_BUFFER, vtxBuf);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, indexBuf);
glBindTexture(GL_TEXTURE_2D, texID);
if (!(uvOff == 12 || uvOff == 0)) { /* Separate array for position and color */
glEnableVertexAttribArray(_vtxPosID);
glVertexAttribPointer(_vtxPosID, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(float), (void*)(intptr_t)xyzOff);
glEnableVertexAttribArray(_vtxTexID);
glVertexAttribPointer(_vtxTexID, 2, GL_FLOAT, GL_FALSE, 2 * sizeof(float), (void*)(intptr_t)uvOff);
}
else { /* One contiguous array for position and color */
glEnableVertexAttribArray(_vtxPosID);
glVertexAttribPointer(_vtxPosID, 3, GL_FLOAT, GL_FALSE, 5 * sizeof(float), (void*)(intptr_t)(xyzOff + 0 * sizeof(float)));
glEnableVertexAttribArray(_vtxTexID);
glVertexAttribPointer(_vtxTexID, 2, GL_FLOAT, GL_FALSE, 5 * sizeof(float), (void*)(intptr_t)(xyzOff + 3 * sizeof(float)));
err = glGetError(); if (err) printf("glVertexAttribPointer returns %d\n", err);
}
glDrawElements(graphicsMode, numIndices, IndexTypeFromSize(indexSize), (void*)0);
}
/********************************************************************************
* drawQuad, from user buffers
********************************************************************************/
void TextureRenderer::drawQuad(const float xyz[4*3], const float uv[4*2], GLuint texID, const float *M) {
static const unsigned char indices[4] = { 0, 1, 2, 3 }; // These need to be static, because GL is asynchronous
drawElements(4, xyz, uv, GL_TRIANGLE_FAN, 4, GL_UNSIGNED_BYTE, indices, texID, M);
}
/********************************************************************************
* Mesh shader
********************************************************************************/
class MeshShader {
static const char _vertexShader[], _fragmentShader[];
};
// The ambient and diffuse coefficients are rolled into the ambCol and litCol, respectively.
const char MeshShader::_vertexShader[] =
"uniform mat4 MVP;\n" // Model, view, projection matrices, concatenated.
"uniform mat3 N;\n" // Normal matrix.
"uniform vec3 litDir;\n" // Light direction
"uniform vec3 litCol;\n" // Light color multiplied by the diffuse coefficient
"uniform vec3 ambCol;\n" // Ambient color multiplied by the ambient coefficient
"attribute vec3 vtxPos;\n" // Vertex position
"attribute vec3 vtxNor;\n" // Vertex normal
"attribute vec2 vtxTex;\n" // Vertex texture coordinate
"varying vec2 texCoord;\n" // Interpolated texture coordinate
"varying vec3 illum;\n" // Interpolated illumination
"void main()\n"
"{\n"
" gl_Position = MVP * vec4(vtxPos, 1.0);\n"
" texCoord = vtxTex;\n"
" illum = max(dot(N * vtxNor, litDir) * litCol + ambCol;\n"
"}\n";
/********************************************************************************
* UpdateTexture
********************************************************************************/
GLenum UpdateTexture(GLint texID, GLsizei width, GLsizei height, GLsizei rowBytes, GLenum glFormat, const GLvoid *pixels) {
glBindTexture(GL_TEXTURE_2D, texID);
glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
glPixelStorei(GL_UNPACK_ROW_LENGTH, rowBytes / 4);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, glFormat, GL_UNSIGNED_BYTE, pixels);
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0); // restore to default
return glGetError();
}
/********************************************************************************
********************************************************************************
***** LAMBERTIAN RENDERER *****
********************************************************************************
********************************************************************************/
/********************************************************************************
* Shaders
********************************************************************************/
const char LambertianRenderer::_vertexShader[] =
"#version 120\n"
"uniform mat4 M;\n"
"uniform mat4 VP;\n"
"uniform vec4 lightLoc[" STRINGIFY(LAMBERTIAN_NUM_LIGHTS) "];\n"
"uniform vec3 lightColor[" STRINGIFY(LAMBERTIAN_NUM_LIGHTS) "];\n"
"uniform vec3 Ka;\n"
"uniform vec3 Kd;\n"
"attribute vec3 vPos;\n"
"attribute vec3 vNrm;\n"
"varying vec3 color;\n"
"void main()\n"
"{\n"
" vec4 loc = M * vec4(vPos, 1.);\n" // Transform points into world space ...
" gl_Position = VP * loc;\n" // ... and screen space
" vec3 N = normalize(mat3(M) * vNrm);\n" // Transform normal into world space, assuming isotropic scaling
" color = Ka;\n" // Initialize color to ambient
" for (int i = 0; i < " STRINGIFY(LAMBERTIAN_NUM_LIGHTS) "; ++i)\n"
" {\n"
" vec3 L = normalize(lightLoc[i].xyz - lightLoc[i].w * loc.xyz);\n" // Compute vector to light: w must be either 1 or 0
" float d = dot(L, N);\n" // Lambertian lighting
" if (d > 0.)\n" // If the light hits the outside surface, ...
" color += d * lightColor[i] * Kd;\n" // ... accumulate color from the light source
" }\n"
"}\n";
const char LambertianRenderer::_fragmentShader[] =
"varying vec3 color;\n"
"void main()\n"
"{\n"
" gl_FragColor = vec4(color, 1.);\n" // Interpolate the color
"}\n";
/********************************************************************************
* startup
********************************************************************************/
int LambertianRenderer::startup() {
int err = myErrNone;
GLuint vertexShader = 0, fragmentShader = 0;
_programID = 0;
BAIL_IF_ERR(err = NewShader(_vertexShader, GL_VERTEX_SHADER, &vertexShader));
BAIL_IF_ERR(err = NewShader(_fragmentShader, GL_FRAGMENT_SHADER, &fragmentShader));
BAIL_IF_ERR(err = NewProgram(vertexShader, fragmentShader, &_programID));
_lightLoc = glGetUniformLocation(_programID, "lightLoc"); // light locations
_lightColor = glGetUniformLocation(_programID, "lightColor"); // light diffuse colors
_MmatrixID = glGetUniformLocation(_programID, "M"); // M matrix; require UL 3x3 to be orthogonal
_VPmatrixID = glGetUniformLocation(_programID, "VP"); // VP matrix
_ambientColorID = glGetUniformLocation(_programID, "Ka"); // ambient color
_diffuseColorID = glGetUniformLocation(_programID, "Kd"); // diffuse color
_vtxPosID = glGetAttribLocation(_programID, "vPos"); // vertex positions
_vtxNrmID = glGetAttribLocation(_programID, "vNrm"); // vertex normals
err = (-1 == _lightLoc || -1 == _lightColor || -1 == _MmatrixID || -1 == _VPmatrixID || -1 == _ambientColorID
|| -1 == _diffuseColorID || -1 == _vtxPosID || -1 == _vtxNrmID) ? myErrShader : myErrNone;
BAIL_IF_ERR(err);
bail:
if (myErrNone != err) shutdown();
if (fragmentShader) glDeleteShader(fragmentShader);
if (vertexShader) glDeleteShader(vertexShader);
return err;
}
/********************************************************************************
* use
********************************************************************************/
int LambertianRenderer::use() {
if (0 == _programID)
return myErrProgram;
glUseProgram(_programID);
return myErrNone;
}
/********************************************************************************
* set lights
********************************************************************************/
void LambertianRenderer::setLights(const float locXYZW[4*LAMBERTIAN_NUM_LIGHTS], const float colorRGB[3*LAMBERTIAN_NUM_LIGHTS]) {
glUseProgram(_programID);
glUniform4fv(_lightLoc, LAMBERTIAN_NUM_LIGHTS, locXYZW);
glUniform3fv(_lightColor, LAMBERTIAN_NUM_LIGHTS, colorRGB);
}
/********************************************************************************
* drawElements, from user memory
********************************************************************************/
void LambertianRenderer::drawElements(GLsizei numVertices, const GLfloat *positions, const GLfloat *normals,
GLenum graphicsMode, GLsizei indexCount, GLenum indexType, const GLvoid *indices,
const GLfloat M[4*4], const GLfloat VP[4*4], const float Ka[3], const float Kd[3]
) {
MAYBE_UNUSED(numVertices);
glUseProgram(_programID);
if (M) glUniformMatrix4fv(_MmatrixID, 1, GL_FALSE, M);
if (VP) glUniformMatrix4fv(_VPmatrixID, 1, GL_FALSE, VP);
if (Ka) glUniform3fv(_ambientColorID, 1, Ka);
if (Kd) glUniform3fv(_diffuseColorID, 1, Kd);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
if (normals) { /* Separate array for position and color */
glEnableVertexAttribArray(_vtxPosID);
glVertexAttribPointer(_vtxPosID, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(*positions), positions);
glEnableVertexAttribArray(_vtxNrmID);
glVertexAttribPointer(_vtxNrmID, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(*normals), normals);
}
else { /* One contiguous array for position and color */
glEnableVertexAttribArray(_vtxPosID);
glVertexAttribPointer(_vtxPosID, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(*positions), positions);
glEnableVertexAttribArray(_vtxNrmID);
glVertexAttribPointer(_vtxNrmID, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(*normals), normals + 3);
}
glDrawElements(graphicsMode, indexCount, indexType, indices);
}
/********************************************************************************
* drawElements, from buffer objects
********************************************************************************/
void LambertianRenderer::drawElements(GLuint vtxBuf, unsigned posOff, unsigned nrmOff,
GLenum graphicsMode, GLsizei numIndices, unsigned indexSize, GLuint indexBuf,
const GLfloat M[4*4], const GLfloat VP[4*4], const float Ka[3], const float Kd[3]
) {
GLenum err;
glUseProgram(_programID);
if (M) glUniformMatrix4fv(_MmatrixID, 1, GL_FALSE, M);
if (VP) glUniformMatrix4fv(_VPmatrixID, 1, GL_FALSE, VP);
if (Ka) glUniform3fv(_ambientColorID, 1, Ka);
if (Kd) glUniform3fv(_diffuseColorID, 1, Kd);
glBindBuffer(GL_ARRAY_BUFFER, vtxBuf);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, indexBuf);
if (!(nrmOff == 12 || nrmOff == 0)) { /* Separate array for position and normal */
glEnableVertexAttribArray(_vtxPosID);
glVertexAttribPointer(_vtxPosID, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(float), (void*)(intptr_t)posOff);
glEnableVertexAttribArray(_vtxNrmID);
glVertexAttribPointer(_vtxNrmID, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(float), (void*)(intptr_t)nrmOff);
}
else { /* One contiguous array for position and normal */
glEnableVertexAttribArray(_vtxPosID);
glVertexAttribPointer(_vtxPosID, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(float), (void*)(intptr_t)(posOff + 0 * sizeof(float)));
glEnableVertexAttribArray(_vtxNrmID);
glVertexAttribPointer(_vtxNrmID, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(float), (void*)(intptr_t)(posOff + 3 * sizeof(float)));
err = glGetError(); if (err) printf("glVertexAttribPointer returns %d\n", err);
}
glDrawElements(graphicsMode, numIndices, IndexTypeFromSize(indexSize), (void*)0);
}

366
samples/ExpressionApp/BackEndOpenGL/GLShaders.h Normal file
View File

@@ -0,0 +1,366 @@
/*###############################################################################
#
# Copyright 2016-2021 NVIDIA Corporation
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of
# this software and associated documentation files (the "Software"), to deal in
# the Software without restriction, including without limitation the rights to
# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
# the Software, and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
###############################################################################*/
#ifndef __ARSHADERS_H__
#define __ARSHADERS_H__
#ifdef _MSC_VER
#include "glad/glad.h"
#else
#include <GLES3/gl3.h>
#endif // _MSC_VER
/********************************************************************************
********************************************************************************
***** SMOOTH RENDERER *****
********************************************************************************
********************************************************************************/
class SmoothRenderer {
public:
SmoothRenderer() { _programID = 0; }
~SmoothRenderer() { shutdown(); }
int startup();
void shutdown() { if (_programID) glDeleteProgram(_programID); _programID = 0; }
int use();
int activate() { return startup(); } // DEPRECATED
void deactivate() { shutdown(); } // DEPRECATED
/** These take vertex and topology data in user-space buffers.
* @param[in] numPts The number of points in xyz or rgb.
* @param[in] xyz The vertex locations {x, y, z }.
* @param[in] rgb The vertex colors { r, g, b }, in [0, 1].
* @param[in] numIndices The number of indices.
* @param[in] indices The indices. Note that three versions are given, where indices can be 1, 2, or 4 bytes.
* @param[in] M the matrix.
*/
void drawTriMesh(unsigned numPts, const float* xyz, const float* rgb,
unsigned numIndices, const unsigned char* indices, const float* M = nullptr) {
drawElements(numPts, xyz, rgb, GL_TRIANGLES, numIndices, GL_UNSIGNED_BYTE, indices, M);
}
void drawTriMesh(unsigned numPts, const float* xyz, const float* rgb,
unsigned numIndices, const unsigned short* indices, const float* M = nullptr) {
drawElements(numPts, xyz, rgb, GL_TRIANGLES, numIndices, GL_UNSIGNED_SHORT, indices, M);
}
void drawTriMesh(unsigned numPts, const float* xyz, const float* rgb,
unsigned numIndices, const unsigned int* indices, const float* M = nullptr) {
drawElements(numPts, xyz, rgb, GL_TRIANGLES, numIndices, GL_UNSIGNED_INT, indices, M);
}
/** These take vertex and topology data in GL buffer objects
* @param[in] vtxBuf the vertex buffer object identifier.
* @param[in] xyzOff the offset, in bytes, of the xyz positions in the vertex buffer.
* @param[in] rgbOff the offset, in bytes, of the rgb color in the vertex buffer.
* @param[in] numIndices the number of indices.
* @param[in] indexBuf the index buffer object identifier.
* @param[in] indexSize the byte size of the indices: 1, 2, or 4.
* @param[in] M the matrix.
*/
void drawTriMesh(GLuint vtxBuf, unsigned xyzOff, unsigned rgbOff,
unsigned numIndices, GLuint indexBuf, GLenum indexSize, const float* M) {
drawElements(vtxBuf, xyzOff, rgbOff, GL_TRIANGLES, numIndices, indexSize, indexBuf, M);
}
private:
/** Render geometry from user buffers, pre-shaded at vertices.
* @param[in] numVertices The number of 3D vertices.
* @param[in] positions The array of 3D positions -- one for every vertex.
* @param[in] colors The array of RGB colors -- one for every vertex.
* @param[in] graphicsMode One of { GL_TRIANGLES, GL_TRIANGLE_STRIP, GL_TRIANGLE_FAN }.
* GL_QUADS is not supported.
* @param[in] indexCount The number of 0-based vertex indices that define the geometry
* from the vertices and graphics mode.
* @param[in] indexType The type of index { GL_UNSIGNED_BYTE, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT }.
* @param[in] indices The array of vertices.
* @param[in] M The modeling-viewing-projection matrix.
*/
void drawElements(GLsizei numVertices, const GLfloat* positions, const GLfloat* colors,
GLenum graphicsMode, GLsizei indexCount, GLenum indexType, const GLvoid* indices, const GLfloat* M);
/** Render geometry from GL buffer objects, pre-shaded at vertices.
* @param[in] vtxBuf The ID of the GL buffer used to store the vertices.
* @param[in] posOff The offset of the positions in the vertex buffer. This is typically 0,
* but is not restricted so.
* @param[in] colOff The offset of the colors in the vertex buffer. Both planar (homogeneous, separate)
* and chunky (nonhomogeneous, interleaved) representations are accommodated.
* @param[in] graphicsMode One of { GL_TRIANGLES, GL_TRIANGLE_STRIP, GL_TRIANGLE_FAN }.
* GL_QUADS is not supported.
* @param[in] indexCount The number of 0-based vertex indices that define the geometry
* from the vertices and graphics mode.
* @param[in] indexType The type of index { GL_UNSIGNED_BYTE, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT }.
* @param[in] indexBuf The ID of the GL buffer used to store the indices.
* @param[in] M The modeling-viewing-projection matrix.
*/
void drawElements(GLuint vtxBuf, unsigned posOff, unsigned colOff,
GLenum graphicsMode, GLsizei indexCount, GLenum indexType, GLuint indexBuf, const GLfloat* M);
GLuint _programID;
GLint _maxtrixID, _vtxPosID, _vtxColID;
static const char _vertexShader[], _fragmentShader[];
};
/********************************************************************************
********************************************************************************
***** TEXTURE RENDERER *****
********************************************************************************
********************************************************************************/
class TextureRenderer {
public:
TextureRenderer() { _programID = 0; }
~TextureRenderer() { shutdown(); }
int startup();
void shutdown() { if (_programID) glDeleteProgram(_programID); _programID = 0; }
int use();
int activate() { return startup(); } // DEPRECATED
void deactivate() { shutdown(); } // DEPRECATED
/** These take vertex and topology data in user-space buffers.
* @param[in] numPts The number of points in xyz or uv.
* @param[in] xyz The vertex locations {x, y, z }.
* @param[in] uv The vertex texture coordinates { u, v }, in [0, 1].
* @param[in] numIndices The number of indices.
* @param[in] indices The indices. Note that three versions are given, where indices can be 1, 2, or 4 bytes.
* @param[in] texID The texture ID.
* @param[in] M the matrix. NULL keeps the matrix as it was in the last invocation.
*/
void drawTriMesh(unsigned numPts, const float* xyz, const float* uv,
unsigned numIndices, const unsigned char* indices, GLuint texID, const float* M = nullptr) {
drawElements(numPts, xyz, uv, GL_TRIANGLES, numIndices, GL_UNSIGNED_BYTE, indices, texID, M);
}
void drawTriMesh(unsigned numPts, const float* xyz, const float* uv,
unsigned numIndices, const unsigned short* indices, GLuint texID, const float* M = nullptr) {
drawElements(numPts, xyz, uv, GL_TRIANGLES, numIndices, GL_UNSIGNED_SHORT, indices, texID, M);
}
void drawTriMesh(unsigned numPts, const float* xyz, const float* uv,
unsigned numIndices, const unsigned int* indices, GLuint texID, const float* M = nullptr) {
drawElements(numPts, xyz, uv, GL_TRIANGLES, numIndices, GL_UNSIGNED_INT, indices, texID, M);
}
/** Draw a texture-mapped quadrilateral.
* @param[in] xyz The vertex locations {x, y, z }.
* @param[in] uv The vertex texture coordinates { u, v }, in [0, 1].
* @param[in] texID The texture ID.
* @param[in] M the matrix. NULL keeps the matrix as it was in the last invocation.
*/
void drawQuad(const float xyz[4 * 3], const float uv[4 * 2], GLuint texID, const float* M = nullptr);
/** These take vertex and topology data in GL buffer objects
* @param[in] vtxBuf the vertex buffer object identifier.
* @param[in] xyzOff the offset, in bytes, of the xyz positions in the vertex buffer.
* @param[in] uvOff the offset, in bytes, of the texture coordinates in the vertex buffer.
* @param[in] numIndices the number of indices.
* @param[in] indexBuf the index buffer object identifier.
* @param[in] indexSize the byte size of the indices: 1, 2, or 4.
* @param[in] texID The texture ID.
* @param[in] M the matrix. NULL keeps the matrix as it was in the last invocation.
*/
void drawTriMesh(GLuint vtxBuf, unsigned xyzOff, unsigned rgbOff,
unsigned numIndices, GLuint indexBuf, GLenum indexSize, GLuint texID, const float* M) {
drawElements(vtxBuf, xyzOff, rgbOff, GL_TRIANGLES, numIndices, indexSize, indexBuf, texID, M);
}
private:
/** Render geometry from user buffers.
* @param[in] numVertices The number of 3D vertices.
* @param[in] positions The array of 3D positions -- one for every vertex.
* @param[in] uv The array of texture coordinates -- one for every vertex.
* @param[in] graphicsMode One of { GL_TRIANGLES, GL_TRIANGLE_STRIP, GL_TRIANGLE_FAN }.
* GL_QUADS is not supported.
* @param[in] indexCount The number of 0-based vertex indices that define the geometry
* from the vertices and graphics mode.
* @param[in] indexType The type of index { GL_UNSIGNED_BYTE, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT }.
* @param[in] indices The array of vertices.
* @param[in] texID The ID of the texture to be used.
* @param[in] M The modeling-viewing-projection matrix.
*/
void drawElements(GLsizei numVertices, const GLfloat* positions, const GLfloat* uv, GLenum graphicsMode,
GLsizei indexCount, GLenum indexType, const GLvoid* indices, GLuint texID, const GLfloat* M);
/** Render geometry from GL buffer objects.
* @param[in] vtxBuf The ID of the GL buffer used to store the vertices.
* @param[in] posOff The offset of the positions in the vertex buffer. This is typically 0,
* but is not restricted so.
* @param[in] uvOff The offset of the texture coordinates in the vertex buffer. Both planar
* (homogeneous, separate) and chunky (nonhomogeneous, interleaved)
* representations are accommodated.
* @param[in] graphicsMode One of { GL_TRIANGLES, GL_TRIANGLE_STRIP, GL_TRIANGLE_FAN }.
* GL_QUADS is not supported.
* @param[in] indexCount The number of 0-based vertex indices that define the geometry
* from the vertices and graphics mode.
* @param[in] indexSize The size of index { 1, 2, 4 } in bytes.
* @param[in] indexBuf The ID of the GL buffer used to store the indices.
* @param[in] texID The ID of the texture to be used.
* @param[in] M The modeling-viewing-projection matrix.
*/
void drawElements(GLuint vtxBuf, unsigned posOff, unsigned uvOff, GLenum graphicsMode,
GLsizei indexCount, GLenum indexSize, GLuint indexBuf, GLuint texID, const GLfloat* M);
GLuint _programID;
GLint _maxtrixID, _vtxPosID, _vtxTexID;
static const char _vertexShader[], _fragmentShader[];
};
/** Update the specified texture.
* @param[in] texID The ID of the texture to be updated.
* @param[in] width The width of the source image.
* @param[in] height The height of the source image.
* @param[in] rowBytes The byte stride between pixels vertically in the source image (must be positive).
* @param[in] glFormat The format of the source image. One of { GL_RGBA, GL_BGRA, GL_RGB, GL_BGR, GL_RG, GL_R }.
* @param[in] pixels A pointer to pixel(0,0) of the source image.
* @return GL_NO_ERROR if the update was successful.
*/
GLenum UpdateTexture(GLint texID, GLsizei width, GLsizei height, GLsizei rowBytes, GLenum glFormat,
const GLvoid* pixels);
/********************************************************************************
********************************************************************************
***** LAMBERTIAN SHADER *****
********************************************************************************
********************************************************************************/
/** The camera is assumed to be at the origin. Lights are represented in the camera coordinate system.
* The model coordinates are transformed M * pt;
* the normal transformed by (M{3x3})^(-1)^(T), or simply M{3x3} assuming the scaling is isotropic.
* We further assume that M{3x3} is orthonormal.
*/
class LambertianRenderer {
public:
#define LAMBERTIAN_NUM_LIGHTS 2
LambertianRenderer() { _programID = 0; }
~LambertianRenderer() { shutdown(); }
int startup();
void shutdown() { if (_programID) glDeleteProgram(_programID); _programID = 0; }
int use();
/** Set all lights. We accommodate point lights or directional lights.
* These are specified in camera space, which we assume is fixed while the objects move.
* @param[in] locXYZW The location of the lights -- in camera space.
* The homogeneous coordinate W is used to choose between
* directional lights (W=0) and point lights (W=1).
* The result is undefined for other values of W.
* @param[in] colorRGB the emissive color of the light source, RGB in [0, 1].
* To turn a light off, set its emissive color to (0,0,0).
*/
void setLights(const float locXYZW[4 * LAMBERTIAN_NUM_LIGHTS], const float colorRGB[3 * LAMBERTIAN_NUM_LIGHTS]);
/* These take vertex and topology data in user-space buffers.
* @param[in] numPts The number of points in xyz or normals.
* @param[in] xyz The vertex locations {x, y, z}.
* @param[in] nrm The vertex normals {nx, ny, nz}.
* @param[in] numIndices The number of indices.
* @param[in] indices The indices. Note that three versions are given, where indices can be 1, 2, or 4 bytes.
* @param[in] M The modeling matrix. If NULL, the previous matrix will be used.
* @param[in] VP The viewing+projection matrix. If NULL, the previous matrix will be used.
* @param[in] Ka The ambient color {r, g, b}. If NULL, the previous ambient color will be used.
* @param[in] Kd The diffuse color {r, g, b}. If NULL, the previous diffuse color will be used.
*/
void drawTriMesh(unsigned numPts, const float* xyz, const float* nrm, unsigned numIndices, const unsigned char* indices,
const float* M = nullptr, const float* VP = nullptr, const float* Ka = nullptr, const float* Kd = nullptr) {
drawElements(numPts, xyz, nrm, GL_TRIANGLES, numIndices, GL_UNSIGNED_BYTE, indices, M, VP, Ka, Kd);
}
void drawTriMesh(unsigned numPts, const float* xyz, const float* nrm, unsigned numIndices, const unsigned short* indices,
const float* M = nullptr, const float* VP = nullptr, const float* Ka = nullptr, const float* Kd = nullptr) {
drawElements(numPts, xyz, nrm, GL_TRIANGLES, numIndices, GL_UNSIGNED_SHORT, indices, M, VP, Ka, Kd);
}
void drawTriMesh(unsigned numPts, const float* xyz, const float* nrm, unsigned numIndices, const unsigned int* indices,
const float* M = nullptr, const float* VP = nullptr, const float* Ka = nullptr, const float* Kd = nullptr) {
drawElements(numPts, xyz, nrm, GL_TRIANGLES, numIndices, GL_UNSIGNED_INT, indices, M, VP, Ka, Kd);
}
/* These take vertex and topology data in GL buffer objects
* @param[in] vtxBuf the vertex buffer object identifier.
* @param[in] xyzOff the offset, in bytes, of the xyz positions in the vertex buffer.
* @param[in] nrmOff the offset, in bytes, of the normals in the vertex buffer.
* @param[in] numIndices the number of indices.
* @param[in] indexBuf the index buffer object identifier.
* @param[in] indexSize the byte size of the indices: 1, 2, or 4.
* @param[in] M The modeling matrix. If NULL, the previous matrix will be used.
* @param[in] VP The viewing+projection matrix. If NULL, the previous matrix will be used.
* @param[in] Ka The ambient color {r, g, b}. If NULL, the previous ambient color will be used.
* @param[in] Kd The diffuse color {r, g, b}. If NULL, the previous diffuse color will be used.
*/
void drawTriMesh(GLuint vtxBuf, unsigned xyzOff, unsigned rgbOff, unsigned numIndices, GLuint indexBuf, GLenum indexSize,
const float* M = nullptr, const float* VP = nullptr, const float* Ka = nullptr, const float* Kd = nullptr) {
drawElements(vtxBuf, xyzOff, rgbOff, GL_TRIANGLES, numIndices, indexSize, indexBuf, M, VP, Ka, Kd);
}
private:
/** Render geometry from user buffers.
* @param[in] numVertices The number of 3D vertices.
* @param[in] positions The array of 3D positions -- one for every vertex.
* @param[in] normals The array of normals -- one for every vertex.
* @param[in] graphicsMode One of { GL_TRIANGLES, GL_TRIANGLE_STRIP, GL_TRIANGLE_FAN }.
* GL_QUADS is not supported.
* @param[in] indexCount The number of 0-based vertex indices that define the geometry
* from the vertices and graphics mode.
* @param[in] indexType The type of index { GL_UNSIGNED_BYTE, GL_UNSIGNED_SHORT, GL_UNSIGNED_INT }.
* @param[in] indices The array of vertices.
* @param[in] MV The modeling-viewing matrix.
* @param[in] P The projection matrix.
* @param[in] Ka The ambient color.
* @param[in] Kd The diffuse color.
*/
void drawElements(GLsizei numVertices, const GLfloat* positions, const GLfloat* normals,
GLenum graphicsMode, GLsizei indexCount, GLenum indexType, const GLvoid* indices,
const GLfloat M[4 * 4], const GLfloat VP[4 * 4], const float Ka[3], const float Kd[3]);
/** Render geometry from GL buffer objects.
* @param[in] vtxBuf The ID of the GL buffer used to store the vertices.
* @param[in] posOff The offset of the positions in the vertex buffer. This is typically 0,
* but is not restricted so.
* @param[in] nrmOff The offset of the normals in the vertex buffer. Both planar (homogeneous, separate)
* and chunky (nonhomogeneous, interleaved) representations are accommodated.
* @param[in] graphicsMode One of { GL_TRIANGLES, GL_TRIANGLE_STRIP, GL_TRIANGLE_FAN }.
* GL_QUADS is not supported.
* @param[in] numIndices The number of 0-based vertex indices that define the geometry
* from the vertices and graphics mode.
* @param[in] indexSize The size of index { 1, 2, 4 } in bytes.
* @param[in] indexBuf The ID of the GL buffer used to store the indices.
* @param[in] M The modeling matrix.
* @param[in] VP The viewing+projection matrix.
* @param[in] Ka The ambient color.
* @param[in] Kd The diffuse color.
*/
void drawElements(GLuint vtxBuf, unsigned posOff, unsigned nrmOff,
GLenum graphicsMode, GLsizei numIndices, unsigned indexSize, GLuint indexBuf,
const GLfloat M[4 * 4], const GLfloat VP[4 * 4], const float Ka[3], const float Kd[3]);
GLuint _programID;
GLint _MmatrixID, _VPmatrixID, _lightLoc, _lightColor, _ambientColorID, _diffuseColorID;
GLint _vtxPosID, _vtxNrmID;
static const char _vertexShader[], _fragmentShader[];
};
#endif /* __ARSHADERS_H__ */

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/*###############################################################################
#
# Copyright 2016-2021 NVIDIA Corporation
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of
# this software and associated documentation files (the "Software"), to deal in
# the Software without restriction, including without limitation the rights to
# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
# the Software, and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
###############################################################################*/
#ifndef __GLSPECTRUM_H
#define __GLSPECTRUM_H
////////////////////////////////////////////////////////////////////////////////
/// The representation used for spectral parameters in surface illumination transport.
////////////////////////////////////////////////////////////////////////////////
struct GLSpectrum3f {
float r, g, b; ///< Red, green and blue components of the color spectrum.
/// Default constructor.
GLSpectrum3f() {}
/// Initialization constructor.
/// @param[in] R the red component.
/// @param[in] G the green component.
/// @param[in] B the blue component.
GLSpectrum3f(float R, float G, float B) { set(R, G, B); }
/// Access to the array of spectral components.
/// @return a pointer to the array of spectral components.
const float* data() const { return &r; }
/// Access to the array of spectral components.
/// @return a pointer to the array of spectral components.
float* data() { return &r; }
/// Set the spectral components.
/// @param[in] R the red component.
/// @param[in] G the green component.
/// @param[in] B the blue component.
void set(float R, float G, float B) { r = R; g = G; b = B; };
/// Componentwise scaling of the spectrum.
/// @param[in] the scaling spectrum (RHS).
/// @return The LHS, scaled by the RHS.
GLSpectrum3f& operator*=(const GLSpectrum3f& k) { r *= k.r; g *= k.g; b *= k.b; return *this; }
/// Componentwise augmentation of the spectrum.
/// @param[in] the delta spectrum (RHS).
/// @return The LHS, augmented by the RHS.
GLSpectrum3f& operator+=(const GLSpectrum3f& k) { r += k.r; g += k.g; b += k.b; return *this; }
/// Scalar scaling of the spectrum.
/// @param[in] the scalar (RHS).
/// @return The LHS, scaled by the RHS.
GLSpectrum3f& operator*=(float s) { r *= s; g *= s; b *= s; return *this; }
/// Scalar scaling of the spectrum.
/// @param[in] the scalar (RHS).
/// @return The LHS, scaled by the RHS.
GLSpectrum3f& operator/=(float s) { r /= s; g /= s; b /= s; return *this; }
/// Componentwise scaling of the spectrum.
/// @param[in] k the scaling spectrum (RHS).
/// @return The componentwise product of the LHS and RHS.
GLSpectrum3f operator*(const GLSpectrum3f& k) const { return GLSpectrum3f(r * k.r, g * k.g, b * k.b); }
/// Componentwise augmentation of the spectrum.
/// @param[in] k the scale vector (RHS).
/// @return The componentwise sum of the LHS and RHS.
GLSpectrum3f operator+(const GLSpectrum3f& k) const { return GLSpectrum3f(r + k.r, g + k.g, b + k.b); }
/// Scalar scaling of the spectrum.
/// @param[in] s the scalar (RHS).
/// @return The product of the LHS and the RHS scalar.
GLSpectrum3f operator*(float s) const { return GLSpectrum3f(r * s, g * s, b * s); }
/// Scalar scaling of the spectrum.
/// @param[in] s the scalar (RHS).
/// @return The product of the LHS and the RHS scalar.
GLSpectrum3f operator/(float s) const { return GLSpectrum3f(r / s, g / s, b / s); }
};
/// Scalar scaling of the spectrum.
/// @param[in] s the scalar (LHS).
/// @param[in] k the spectrum to be scaled (RHS).
/// @return The product of the RHS and the scalar LHS.
inline GLSpectrum3f operator*(float s, const GLSpectrum3f& k) { return GLSpectrum3f(s * k.r, s * k.g, s * k.b); }
#endif // __GLSPECTRUM_H

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/*###############################################################################
#
# Copyright 2021 NVIDIA Corporation
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of
# this software and associated documentation files (the "Software"), to deal in
# the Software without restriction, including without limitation the rights to
# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
# the Software, and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
###############################################################################*/
#include "OpenGLMeshRenderer.h"
#include <cmath>
#include <cstring>
#include <string>
#include <vector>
#ifdef _MSC_VER
#include "glad/glad.h"
#define strcasecmp _stricmp
#else
#include <GLES3/gl3.h>
#endif // _MSC_VER
#include "FaceIO.h"
#include "GLFW/glfw3.h"
#include "glm/glm.hpp"
#include "glm/gtc/matrix_transform.hpp"
#include "glm/gtc/quaternion.hpp"
#include "GLMaterial.h"
#include "GLMesh.h"
#include "GLShaders.h"
#include "GLSpectrum.h"
#include "nvAR_defs.h"
#include "nvCVOpenCV.h"
#include "opencv2/highgui/highgui.hpp"
#include "SimpleFaceModel.h"
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
///// SUPPORT MACROS AND FUNCTIONS /////
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
#define BAIL_IF_ERR(err) do { if ((err) != 0) { goto bail; } } while(0)
#define BAIL(err, code) do { err = code; goto bail; } while(0)
#ifndef __BYTE_ORDER__ /* How bytes are packed into a 32 bit word */
#define __ORDER_LITTLE_ENDIAN__ 3210 /* First byte in the least significant position */
#define __ORDER_BIG_ENDIAN__ 0123 /* First byte in the most significant position */
#if defined(__amd64__) || defined(__amd64) || defined(__x86_64__) || defined(__x86_64) || defined(_M_AMD64) || _MSC_VER
#define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__
#endif /* _MSC_VER */
#endif /* __BYTE_ORDER__ */
/********************************************************************************
* glfwErrorCallback
********************************************************************************/
static void glfwErrorCallback(int error, const char *description) {
fprintf(stderr, "Error %d: %s\n", error, description);
}
/********************************************************************************
* MakeGLContext
********************************************************************************/
static NvCV_Status MakeGLContext(int width, int height, const char *title, GLFWwindow **pWindow) {
NvCV_Status nvErr = NVCV_SUCCESS;
GLFWwindow *window;
/* Get a context */
glfwSetErrorCallback(glfwErrorCallback);
if (!glfwInit()) {
// Initialization failed
fprintf(stderr, "Unable to initialize glfw\n");
return NVCV_ERR_INITIALIZATION;
}
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
window = glfwCreateWindow(width, height, title, /*GLFWmonitor */NULL, /*GLFWwindow*/NULL);
if (!window) {
// Window or OpenGL context creation failed
fprintf(stderr, "Unable to create glfw window\n");
BAIL(nvErr, NVCV_ERR_INITIALIZATION);
}
int winWidth, winHeight;
glfwGetWindowSize(window, &winWidth, &winHeight);
if (winWidth != width || winHeight != height) {
fprintf(stderr, "getWindowSize(%u x %u) != (%u x %u)\n", winWidth, winHeight, width, height);
}
glfwMakeContextCurrent(window);
#ifdef _MSC_VER
if (!gladLoadGL()) {
fprintf(stderr, "Unable to load GL\n");
BAIL(nvErr, NVCV_ERR_INITIALIZATION);
}
fprintf(stderr, "OpenGL Version %d.%d loaded\n", GLVersion.major, GLVersion.minor);
#endif // _MSC_VER
*pWindow = window;
bail:
return nvErr;
}
/********************************************************************************
* CloseGLContext
********************************************************************************/
static void CloseGLContext(GLFWwindow *window) {
if (window)
glfwDestroyWindow(window);
glfwTerminate();
}
/********************************************************************************
* ComputeDualTopologyFromAdjacencies
********************************************************************************/
static NvCV_Status ComputeDualTopologyFromAdjacencies(const SimpleFaceModelAdapter *fma, GLMesh *mesh) {
union IVF {
unsigned i;
struct VF {
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
unsigned short face, vertex; // Vertex in most significant position
#else // __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
unsigned short vertex, face; // Vertex in most significant position
#endif // __BYTE_ORDER__
} vf;
bool operator<( const IVF& other) { return i < other.i; }
bool operator==(const IVF& other) { return i == other.i; }
};
std::vector<IVF> topo;
topo.reserve(mesh->numVertices() * 6 * 2); // Assume valence-6, duplicated
const unsigned short *adjVertices = const_cast<SimpleFaceModelAdapter*>(fma)->getAdjacentVertices(0),
*adjFaces = const_cast<SimpleFaceModelAdapter*>(fma)->getAdjacentFaces(0);
unsigned n = fma->getAdjacentVerticesSize();
if (n != fma->getAdjacentFacesSize()) return NVCV_ERR_MISMATCH;
for (unsigned ej = 0; ej < n; ej += 2) { // 2 adjacencies per edge
for (unsigned vx = 0; vx < 2; ++vx) { // for every vertex on the edge
for (unsigned fc = 0; fc < 2; ++fc) { // and every face on the edge
IVF vf;
vf.vf.vertex = adjVertices[ej + vx];
vf.vf.face = adjFaces[ej + fc];
if (vf.vf.vertex && vf.vf.face) { // if a real vertex and a real face
--vf.vf.vertex; // convert from 1-based index ...
--vf.vf.face; // ... to 0-based index
topo.push_back(vf);
}
}
}
}
std::sort(topo.begin(), topo.end());
topo.erase(std::unique(topo.begin(), topo.end()), topo.end());
mesh->resizeDualIndices(unsigned(topo.size()));
unsigned short *dual = mesh->getDualIndices(),
*numFaces = mesh->getVertexFaceCounts();
memset(numFaces, 0, mesh->numVertices() * sizeof(*numFaces));
for (unsigned i = 0; i < topo.size(); ++i) {
numFaces[topo[i].vf.vertex]++;
dual[i] = topo[i].vf.face;
}
return NVCV_SUCCESS;
}
/********************************************************************************
* MakeMesh
********************************************************************************/
NvCV_Status MakeMesh(const SimpleFaceModelAdapter *fma, GLMesh *mesh) {
mesh->clear();
mesh->addVertices(fma->getShapeMeanSize() / 3, const_cast<SimpleFaceModelAdapter*>(fma)->getShapeMean(0));
mesh->addFaces(fma->getTriangleListSize() / 3, 3, const_cast<SimpleFaceModelAdapter*>(fma)->getTriangleList(0), 0, 0);
NvCV_Status err = ComputeDualTopologyFromAdjacencies(fma, mesh); // This make vertex normal computation lightning fast
if (NVCV_SUCCESS != err) return err;
mesh->computeVertexNormals();
if (fma->fm.partitions.size()) {
std::vector<GLMesh::Partition> parts(fma->fm.partitions.size());
for (unsigned i = unsigned(parts.size()); i--;) {
const SimpleFaceModel::Partition& fr = fma->fm.partitions[i];
GLMesh::Partition& to = parts[fr.partitionIndex];
//to.partitionIndex = fr.partitionIndex; // to doesn't have a partitionIndex
to.faceIndex = fr.faceIndex;
to.numFaces = fr.numFaces;
to.vertexIndex = fr.vertexIndex;
to.numVertexIndices = fr.numVertexIndices;
to.name = fr.name;
to.materialName = fr.materialName;
to.smooth = fr.smoothingGroup;
}
mesh->partitionMesh(unsigned(parts.size()), parts.data());
}
return NVCV_SUCCESS;
}
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
///// RENDER CONTEXT /////
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
#define LAMBERTIAN_NUM_LIGHTS 2
class RenderContext {
public:
RenderContext() {
m_win = nullptr;
}
~RenderContext() {
if (m_win) CloseGLContext(m_win);
m_lam.shutdown();
m_txr.shutdown();
}
NvCV_Status init() {
if (0 != m_lam.startup())
return NVCV_ERR_OPENGL;
if (0 != m_txr.startup())
return NVCV_ERR_OPENGL;
return NVCV_SUCCESS;
}
void setClearColor(float r, float g, float b, float a = 1.f) { glClearColor(r, g, b, a); }
void setClearColor(unsigned char r, unsigned char g, unsigned char b) {
glClearColor(r * (1.f / 255.f), g * (1.f / 255.f), b * (1.f / 255.f), 1.f);
}
NvCV_Status makeWindowContext(int wd, int ht, const char *title) {
NvCV_Status err = MakeGLContext(wd, ht, title, &m_win);
if (NVCV_SUCCESS == err) {
m_width = wd;
m_height = ht;
glfwMakeContextCurrent(m_win);
glViewport(0, 0, wd, ht);
glEnable(GL_DEPTH_TEST);
glClearColor(0.f, 0.f, 0.f, 1.f);
if (/*FLAG_orientation*/0) {
glEnable(GL_CULL_FACE);
glCullFace((/*FLAG_orientation*/0 > 0) ? GL_BACK : GL_FRONT);
}
else {
glDisable(GL_CULL_FACE);
}
}
return err;
}
void computeInverseViewMatrix() {
#if 0
Vinv = glm::inverse(V);
#else // Inversion is simple because we know that it is a rigid transform
m_Vinv = glm::transpose(m_V);
m_Vinv[3][0] = -(m_Vinv[0][0] * m_V[3][0] + m_Vinv[1][0] * m_V[3][1] + m_Vinv[2][0] * m_V[3][2]);
m_Vinv[3][1] = -(m_Vinv[0][1] * m_V[3][0] + m_Vinv[1][1] * m_V[3][1] + m_Vinv[2][1] * m_V[3][2]);
m_Vinv[3][2] = -(m_Vinv[0][2] * m_V[3][0] + m_Vinv[1][2] * m_V[3][1] + m_Vinv[2][2] * m_V[3][2]);
m_Vinv[0][3] = 0.f; m_Vinv[1][3] = 0.f; m_Vinv[2][3] = 0.f; m_Vinv[3][3] = 1.f;
#endif
}
void setViewMatrix(const glm::mat4x4& viewMatrix) {
m_V = viewMatrix;
computeInverseViewMatrix();
}
void setViewMatrix(const glm::vec3& fromPoint, const glm::vec3& toPoint, const glm::vec3& upVector) {
m_V = glm::lookAt(fromPoint, toPoint, upVector);
computeInverseViewMatrix();
}
void setOrthoCamera(float hither, float yon) {
m_P = glm::orthoLH_NO(m_width * -.5f, m_width * +.5f, m_height * -.5f, m_height * +.5f, hither, yon);
}
void setOrthoCamera(float wd, float ht, float hither, float yon) {
m_P = glm::orthoLH_NO(wd * -.5f, wd * +.5f, ht * -.5f, ht * +.5f, hither, yon);
}
void setLights(const glm::vec4 locs[LAMBERTIAN_NUM_LIGHTS], const GLSpectrum3f colors[LAMBERTIAN_NUM_LIGHTS]) {
memcpy(m_lightLoc, locs, sizeof(m_lightLoc));
memcpy(m_lightColor, colors, sizeof(m_lightColor));
}
void setViewOfBound(const GLMesh::BoundingSphere& bsph, const glm::vec3& lookAt, const glm::vec3& up, float vfov,
float fracFill, float yDir = 1.f) {
float r = bsph.radius() / fracFill,
aspect = (float)m_width / (float)m_height,
signZ = -yDir,
dist;
if (vfov > 0) { // Perspective
dist = r * .5f / tanf(vfov * .5f);
m_P = glm::perspective(vfov, aspect, (dist - r) * 0.2f, (dist + r) * 2.0f);
}
else { // Orthographic
float w = r,
h = r;
if (aspect < 1.f) h /= aspect; // Wide
else w *= aspect; // Tall
dist = r * 2.f;
m_P = glm::orthoLH_NO(-w, +w, -h, +h, (dist - r) * signZ, (dist + r) * signZ);
}
m_V = glm::lookAt(bsph.center() - glm::normalize(lookAt) * dist, bsph.center(), up);
computeInverseViewMatrix();
}
void setViewOfBound(const GLMesh::BoundingBox& bbox, const glm::vec3& lookAt, const glm::vec3& up, float vfov,
float fracFill, float yDir = 1.f, float yOff = 0.f) {
glm::vec3 boxSize = bbox.max() - bbox.min();
glm::vec3 boxCenter = bbox.center();
float borderFrac = ((1.f - fracFill) / fracFill),
dx = boxSize.x * (1.f + borderFrac), // border on left and right
dy = boxSize.y * (1.f + borderFrac) * (1.f - fabsf(yOff)),
r = ((dx > dy) ? dx : dy), // radius of bounding sphere
aspectGeom = dx / dy,
aspectWind = (float)m_width / (float)m_height,
signZ = -yDir,
dist;
if (vfov > 0) { // Perspective
dist = r * .5f / tanf(vfov * .5f);
m_P = glm::perspective(vfov, aspectWind, dist - r, dist + r);
}
else { // Orthographic
if (aspectGeom > aspectWind) dy *= aspectGeom / aspectWind;
else dx *= aspectWind / aspectGeom;
dist = r * 2.f;
dx *= .5f;
dy *= .5f;
m_P = glm::orthoLH_NO(-dx, +dx, -dy, +dy, (dist - r) * signZ, (dist + r) * signZ);
}
boxCenter.y += boxSize.y * yOff;
m_V = glm::lookAt(boxCenter - glm::normalize(lookAt) * dist, boxCenter, up);
computeInverseViewMatrix();
}
NvCV_Status renderPolyMesh(const GLMesh& mesh, const glm::mat4x4& M, const char *materialOverride = nullptr) {
NvCV_Status nvErr = NVCV_SUCCESS;
glm::mat4x4 VP = m_P * m_V;
const GLSpectrum3f defaultDiffuse = { 0.77f, 0.63f, 0.55f },
defaultAmbient = defaultDiffuse * 0.3f;
#ifdef DEBUG_RENDERING
unsigned why = mesh.notRenderable(0);
if (why) {
if (FLAG_debug)
printf("Mesh %p is not renderable: %s: %s\n", &mesh,
((why & GLMesh::NOT_TRIMESH) ? "not a TriMesh" : ""),
((why & GLMesh::COMPLEX_TOPOLOGY) ? "complex topology" : "")
);
return keErrGeometry;
}
#endif // DEBUG_RENDERING
// Set lights for all shaders
m_lam.setLights(&m_lightLoc[0].x, m_lightColor[0].data()); // TODO: set this elsewhere
for (unsigned ix = 0, numPartitions = mesh.numPartitions(); ix < numPartitions; ++ix) {
GLMesh::Partition pt;
nvErr = mesh.getPartition(ix, pt);
BAIL_IF_ERR(nvErr);
const GLMaterial *mtl = m_mtlLib.getMaterial(materialOverride ? materialOverride : pt.materialName.c_str());
if (mesh.numNormals()) { // We should check for textures, too
const GLSpectrum3f *difColor, *ambColor;
if (mtl) {
difColor = &mtl->diffuseColor;
ambColor = &mtl->ambientColor;
}
else {
difColor = &defaultDiffuse;
ambColor = &defaultAmbient;
}
m_lam.drawTriMesh(mesh.numVertices(), &mesh.getVertices()->x, &mesh.getNormals()->x,
pt.numVertexIndices, mesh.getVertexIndices() + pt.vertexIndex, &M[0][0], &VP[0][0],
ambColor->data(), difColor->data());
}
}
bail:
return nvErr;
}
unsigned m_width, m_height; ///< The dimensions of the viewport.
GLFWwindow *m_win; ///< The window context.
GLMaterialLibrary m_mtlLib; ///< The material library.
glm::mat4x4 m_V, m_Vinv; ///< The viewing matrix and its inverse.
glm::mat4x4 m_P; ///< The projection matrix.
glm::vec4 m_lightLoc[LAMBERTIAN_NUM_LIGHTS]; ///< The light locations.
GLSpectrum3f m_lightColor[LAMBERTIAN_NUM_LIGHTS]; ///< The light colors.
LambertianRenderer m_lam; ///< The Lambertian renderer.
TextureRenderer m_txr; ///< The texture renderer.
};
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
///// OPENGL MESH RENDERER /////
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
class OpenGLMeshRenderer : public MeshRenderer {
public:
~OpenGLMeshRenderer();
static NvCV_Status initDispatch(MeshRenderer::Dispatch *dispatch);
static NvCV_Status unload();
private:
OpenGLMeshRenderer();
SimpleFaceModelAdapter _sfma;
RenderContext _ctx;
GLMesh _mesh;
glm::vec3 _ctrRot;
// C-style object-oriented member functions that are usually loaded from DLL, although in this implementation
// the OpenGLMeshRenderer is compiled directly into the ExpressionApp, and the MeshRendererBroker is
// automatically adding it to its portfolio of renderers without creating a separate DLL.
static NvCV_Status create(MeshRenderer **han);
static void destroy(MeshRenderer *han);
static NvCV_Status name(const char **str);
static NvCV_Status info(const char **str);
static NvCV_Status read(MeshRenderer *han, const char *modelFile);
static NvCV_Status init(MeshRenderer *han, unsigned width, unsigned height, const char *windowName);
static NvCV_Status setCamera(MeshRenderer *han,
const float locPt[3], const float lookVec[3], const float upVec[3], float vfov);
static NvCV_Status render(MeshRenderer *han,
const float exprs[53], const float qrot[4], const float tran[3], NvCVImage *result);
NvCV_Status setFOV(float radians);
};
NvCV_Status OpenGLMeshRenderer_InitDispatch(MeshRenderer::Dispatch *dispatch) {
return OpenGLMeshRenderer::initDispatch(dispatch);
}
NvCV_Status OpenGLMeshRenderer_Unload() {
return OpenGLMeshRenderer::unload();
}
/********************************************************************************
* DeformModel
********************************************************************************/
static NvCV_Status DeformModel(const SimpleFaceModel& model, const float *identCoeffs, const float *exprCoeffs, GLMesh *mesh) {
unsigned size = unsigned(model.shapeMean.size()) * 3, // the number of floats in the mesh vector
numCoeffs, i;
float *const dst0 = &mesh->getVertices()->x, // begin
*const dst1 = dst0 + size; // end
float const *src;
float *dst, c;
memcpy(dst0, model.shapeMean.data(), size * sizeof(*dst0)); // Initialize
if (identCoeffs) {
for (i = 0, numCoeffs = unsigned(model.shapeEigenValues.size()), src = model.shapeModes.data()->vec; i < numCoeffs; ++i, ++identCoeffs) {
if ((c = *identCoeffs) != 0.f) {
for (dst = dst0; dst != dst1;)
*dst++ += *src++ * c;
}
else {
src += size;
}
}
}
for (i = 0, numCoeffs = unsigned(model.blendShapes.size()); i < numCoeffs; ++i, ++exprCoeffs) {
if ((c = *exprCoeffs) != 0.f) {
for (dst = dst0, src = model.blendShapes[i].shape.data()->vec; dst != dst1;)
*dst++ += *src++ * c;
}
}
mesh->computeVertexNormals();
return NVCV_SUCCESS;
}
OpenGLMeshRenderer::OpenGLMeshRenderer() {
/*NvCV_Status err =*/ (void)initDispatch(&this->m_dispatch);
}
OpenGLMeshRenderer::~OpenGLMeshRenderer() {
}
NvCV_Status OpenGLMeshRenderer::name(const char **str) {
static const char name[] = "OpenGL";
*str = name;
return NVCV_SUCCESS;
}
NvCV_Status OpenGLMeshRenderer::info(const char **str) {
static const char info[] = "OpenGL renderer using local illumination";
*str = info;
return NVCV_SUCCESS;
}
NvCV_Status OpenGLMeshRenderer::create(MeshRenderer **han) {
*han = new OpenGLMeshRenderer();
return NVCV_SUCCESS;
}
void OpenGLMeshRenderer::destroy(MeshRenderer* /*han*/) {
}
NvCV_Status OpenGLMeshRenderer::read(MeshRenderer *han, const char *modelFile) {
OpenGLMeshRenderer *ren = static_cast<OpenGLMeshRenderer*>(han);
size_t z = strlen(modelFile);
if (z < 5) return NVCV_ERR_FILE;
if (!strcasecmp(".nvf", modelFile + z - 4)) {
FaceIOErr ioErr = ReadNVFFaceModel(modelFile, &ren->_sfma); // TODO clear _sfma first
if (kIOErrNone != ioErr) {
printf("Error: \"%s\": %s\n", modelFile, FaceIOErrorStringFromCode(ioErr));
return NVCV_ERR_READ;
}
NvCV_Status nvErr;
nvErr = MakeMesh(&ren->_sfma, &ren->_mesh);
if (NVCV_SUCCESS != nvErr) return nvErr;
std::string mtlFile;
mtlFile.assign(modelFile, 0, strlen(modelFile) - 3);
mtlFile += "mtl";
nvErr = ren->_ctx.m_mtlLib.read(mtlFile.c_str());
unsigned why = ren->_mesh.notRenderable(0);
if (why) {
printf("Mesh \"%s\" is not renderable: %s: %s\n", modelFile,
((why & GLMesh::NOT_TRIMESH) ? "not a TriMesh" : ""),
((why & GLMesh::COMPLEX_TOPOLOGY) ? "complex topology" : "")
);
return NVCV_ERR_MISMATCH;
}
return NVCV_SUCCESS;
}
// else if (!strcasecmp(".obj", file + z - 4)) { read obj files }
else {
return NVCV_ERR_FILE;
}
}
NvCV_Status OpenGLMeshRenderer::init(MeshRenderer *han,
unsigned width, unsigned height, const char *windowName) {
OpenGLMeshRenderer *ren = static_cast<OpenGLMeshRenderer*>(han);
static const GLSpectrum3f lightColor[LAMBERTIAN_NUM_LIGHTS] = { { 1.f, 1.f, 1.f }, { .8f, .1f, .1f } };
static const glm::vec4 lightLoc[LAMBERTIAN_NUM_LIGHTS] = { { 0, 0, +1000, 0}, { 100, -200, -500, 0 } };
NvCV_Status nvErr;
nvErr = ren->_ctx.makeWindowContext(width, height, windowName);
nvErr = ren->_ctx.init();
ren->_ctx.setClearColor(0.2f, 0.2f, 0.2f, 1.f);
ren->_ctx.setLights(lightLoc, lightColor);
ren->setFOV(0.f); // Default orthographic
return NVCV_SUCCESS;
}
NvCV_Status OpenGLMeshRenderer::setFOV(float fov) {
if (0 == _mesh.numVertices())
return NVCV_ERR_MODEL;
GLMesh::BoundingBox bbox;
_mesh.getBoundingBox(&bbox);
_ctrRot = bbox.center();
_ctrRot.y = bbox.min().y; // Assume that assets are designed with Y-up.
float vShift = (_mesh.numVertices() > 10000) ? 0.15f : 0.0f; // Heuristic to determine whether there is a neck
_ctx.setViewOfBound(bbox, glm::vec3(0.f, 0.f, -1.f), glm::vec3(0.f, +1.f, 0.f), fov, .9f, +1, vShift);
return NVCV_SUCCESS;
}
NvCV_Status OpenGLMeshRenderer::setCamera(MeshRenderer *han,
const float locPt[3], const float lookVec[3], const float upVec[3], float vfov) {
if (locPt || lookVec || upVec) {} // We don't accommodate these yet
return static_cast<OpenGLMeshRenderer*>(han)->setFOV(vfov);
}
NvCV_Status OpenGLMeshRenderer::render(MeshRenderer *han,
const float exprs[53], const float qrot[4], const float* /*tran*/, NvCVImage *result) {
OpenGLMeshRenderer *ren = static_cast<OpenGLMeshRenderer*>(han);
NvCV_Status nvErr;
glm::mat4x4 M;
glm::quat q; // Convert quaternion from {x,y,z,w} --> GLM's {w,x,y,z}
if (NVCV_RGBA != result->pixelFormat)
return NVCV_ERR_PIXELFORMAT;
if (qrot) { q.x = qrot[0]; q.y = qrot[1]; q.z = qrot[2]; q.w = qrot[3]; }
else { q.x = 0.0f; q.y = 0.0f; q.z = 0.0f; q.w = 1.0f; }
#ifndef TRANSLATE_POSE
M = glm::translate(glm::mat4x4(1.f), -ren->_ctrRot);
M = glm::mat4_cast(q) * M;
M = glm::translate(M, ren->_ctrRot);
#else // TRANSLATE_POSE
M = glm::mat4_cast(q);
if (tran)
M = glm::translate(M, *((const glm::vec3*)(trans)));
#endif // TRANSLATE_POSE
nvErr = DeformModel(ren->_sfma.fm, nullptr, exprs, &ren->_mesh);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
nvErr = ren->_ctx.renderPolyMesh(ren->_mesh, M, NULL);
glReadPixels(0, 0, result->width, result->height, GL_RGBA, GL_UNSIGNED_BYTE, result->pixels);
GLenum glErr = glGetError();
if (glErr)
return NVCV_ERR_OPENGL;
// GL returns an image upside-down, but we can use the NvCVImage_FlipY in the caller to flip it with no overhead
return NVCV_SUCCESS;
}
NvCV_Status OpenGLMeshRenderer::initDispatch(MeshRenderer::Dispatch *dispatch) {
dispatch->name = &OpenGLMeshRenderer::name;
dispatch->info = &OpenGLMeshRenderer::info;
dispatch->create = &OpenGLMeshRenderer::create;
dispatch->destroy = &OpenGLMeshRenderer::destroy;
dispatch->read = &OpenGLMeshRenderer::read;
dispatch->init = &OpenGLMeshRenderer::init;
dispatch->setCamera = &OpenGLMeshRenderer::setCamera;
dispatch->render = &OpenGLMeshRenderer::render;
return NVCV_SUCCESS;
}
NvCV_Status OpenGLMeshRenderer::unload() {
return NVCV_SUCCESS;
}

41
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/*###############################################################################
#
# Copyright 2021 NVIDIA Corporation
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of
# this software and associated documentation files (the "Software"), to deal in
# the Software without restriction, including without limitation the rights to
# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
# the Software, and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
###############################################################################*/
#ifndef __OPENGL_MESH_RENDERER__
#define __OPENGL_MESH_RENDERER__
#include "MeshRenderer.h"
/// Initialize the renderer dispatch table.
/// @param[out] dispatch the dispatch table.
/// @return NVCV_SUCCESS if successful.
NvCV_Status OpenGLMeshRenderer_InitDispatch(MeshRenderer::Dispatch *dispatch);
/// Unload the OpenGL Mesh Renderer from memory.
/// @note Any previously initialized dispatch tables will be invalid.
/// @return NVCV_SUCCESS if successful.
NvCV_Status OpenGLMeshRenderer_Unload();
#endif // __OPENGL_MESH_RENDERER__

245
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/*###############################################################################
#
# Copyright 2021 NVIDIA Corporation
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of
# this software and associated documentation files (the "Software"), to deal in
# the Software without restriction, including without limitation the rights to
# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
# the Software, and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
###############################################################################*/
#ifndef __SIMPLE_FACE_MODEL__
#define __SIMPLE_FACE_MODEL__
#include <stdint.h>
#include <vector>
#include <string>
#include "FaceIO.h"
#include "nvAR_defs.h"
/********************************************************************************
* SimpleFaceModel
********************************************************************************/
struct SimpleFaceModel {
std::vector<NvAR_Point3f> shapeMean;
std::vector<NvAR_Vector3f> shapeModes; /* shapeMean.size() * numModes */
std::vector<float> shapeEigenValues;
std::vector<NvAR_Vector3u16> triangles;
struct BlendShape {
std::string name;
std::vector<NvAR_Vector3f> shape;
};
std::vector<BlendShape> blendShapes;
struct Partition {
unsigned partitionIndex; ///< The index of the partition.
unsigned faceIndex; ///< The index of the first face in the partition.
unsigned numFaces; ///< The number of faces in the partition.
unsigned vertexIndex; ///< The index of the first topological vertex in the partition.
unsigned numVertexIndices; ///< The number of topological vertices in the partition.
int smoothingGroup; ///< Smoothing group > 0; no smoothing == 0; undefined < 0.
std::string name; ///< The name of the partition.
std::string materialName; ///< The name of the material assigned to the partition.
void set(unsigned partIx, unsigned firstFaceIndex, unsigned lastFaceIndex,
unsigned firstVertexIndex, unsigned lastVertexIndex, int smooth,
const char* partName = nullptr, const char* mtrlName = nullptr) {
partitionIndex = partIx;
smoothingGroup = smooth;
faceIndex = firstFaceIndex;
numFaces = lastFaceIndex - firstFaceIndex + 1;
vertexIndex = firstVertexIndex;
numVertexIndices = lastVertexIndex - firstVertexIndex + 1;
if (partName) name = partName;
if (mtrlName) materialName = mtrlName;
}
Partition(unsigned partIx, unsigned firstFaceIndex, unsigned lastFaceIndex,
unsigned firstVertexIndex, unsigned lastVertexIndex, int smooth,
const char* partName, const char* mtrlName) {
set(partIx, firstFaceIndex, lastFaceIndex, firstVertexIndex, lastVertexIndex, smooth, partName, mtrlName);
}
Partition() { set(0, 0, 0, 0, 0, -1, nullptr, nullptr); }
};
std::vector<Partition> partitions;
std::vector<unsigned short> ibugLandmarkMappings; /* 68 */
const unsigned short ibugRightContour[8] = { 1, 2, 3, 4, 5, 6, 7, 8 };
const unsigned short ibugLeftContour[8] = { 10, 11, 12, 13, 14, 15, 16, 17 };
std::vector<unsigned short> modelRightContour;
std::vector<unsigned short> modelLeftContour;
std::vector<unsigned short> adjacentFaces;
std::vector<unsigned short> adjacentVertices;
std::vector<unsigned short> nvlmLandmarks;
std::vector<unsigned short> nvlmRightContour;
std::vector<unsigned short> nvlmLeftContour;
void appendMode(const NvAR_Point3f* pts) {
size_t n = shapeMean.size(),
off = shapeModes.size();
shapeModes.resize(off + n);
float *to = shapeModes[off].vec; // Delta mode vector
const float *fr = &pts->x; // Mode points
const float *mn = &shapeMean[0].x; // Mean points
for (n *= 3; n--;) // 3D points
*to++ = *fr++ - *mn++; // Delta shape
}
void setBlendShape(unsigned i, const std::string& name, const NvAR_Point3f* pts) {
size_t n = shapeMean.size();
blendShapes[i].name = name;
blendShapes[i].shape.resize(n);
float *to = blendShapes[i].shape.data()->vec; // Delta mode vector
const float *fr = &pts->x; // Blendshape points
const float *mn = &shapeMean[0].x; // Mean points
for (n *= 3; n--;) // 3D points
*to++ = *fr++ - *mn++; // Delta shape
}
};
/********************************************************************************
* SimpleFaceModelAdapter
********************************************************************************/
class SimpleFaceModelAdapter : public FaceIOAdapter {
public:
SimpleFaceModel fm;
uint32_t getShapeMeanSize() const override { return unsigned(fm.shapeMean.size()) * 3; }
uint32_t getShapeModesSize() const override { return unsigned(fm.shapeModes.size()) * 3; }
uint32_t getShapeNumModes() const override { return unsigned(fm.shapeModes.size() / fm.shapeMean.size()); }
uint32_t getShapeEigenvaluesSize()const override { return unsigned(fm.shapeEigenValues.size()); }
float* getShapeMean(uint32_t size) override { if (size) fm.shapeMean.resize(size / 3);
return &fm.shapeMean.data()->x; };
float* getShapeModes(uint32_t modeSize, uint32_t numModes) override {
if (modeSize) fm.shapeModes.resize(modeSize / 3 * numModes); return fm.shapeModes.data()->vec; }
float* getShapeEigenvalues(uint32_t numModes) override { if (numModes) fm.shapeEigenValues.resize(numModes);
return fm.shapeEigenValues.data(); }
uint32_t getColorMeanSize() const override { return 0; }
uint32_t getColorModesSize() const override { return 0; }
uint32_t getColorNumModes() const override { return 0; }
uint32_t getColorEigenvaluesSize() const override { return 0; }
float* getColorMean(uint32_t /*size*/) override { return nullptr; }
float* getColorModes(uint32_t /*modeSize*/, uint32_t /*numModes*/) override { return nullptr; }
float* getColorEigenvalues(uint32_t /*numModes*/) override { return nullptr; }
void setTriangleListSize(uint32_t size) override { fm.triangles.resize(size / 3); }
uint32_t getTriangleListSize() const override { return unsigned(fm.triangles.size()) * 3; }
uint16_t* getTriangleList(uint32_t size) override { if (size) fm.triangles.resize(size / 3);
return fm.triangles.data()->vec; }
void setTextureCoordinatesSize(uint32_t /*size*/) override {}
uint32_t getTextureCoordinatesSize() const override { return 0; }
float* getTextureCoordinates(uint32_t /*size*/) override { return nullptr; }
void setNumBlendShapes(uint32_t n) override { fm.blendShapes.resize(n); }
void setBlendShapeName(uint32_t i, const char* name) override { fm.blendShapes[i].name = name; }
uint32_t getNumBlendShapes() const override { return unsigned(fm.blendShapes.size()); }
const char* getBlendShapeName(uint32_t i) const override { return fm.blendShapes[i].name.c_str(); }
uint32_t getBlendShapeSize(uint32_t i) const override { return unsigned((fm.blendShapes[i].shape.size()) * 3); }
float* getBlendShape(uint32_t i, uint32_t size) override { if (size) fm.blendShapes[i].shape.resize(size / 3);
return fm.blendShapes[i].shape.data()->vec; }
void setIbugLandmarkMappingsSize(uint32_t n) override { fm.ibugLandmarkMappings.resize(n); }
uint32_t getIbugLandmarkMappingsSize() const override { return unsigned(fm.ibugLandmarkMappings.size()); }
uint16_t* getIbugLandmarkMappings(uint32_t size) override { if (size) fm.ibugLandmarkMappings.resize(size);
return fm.ibugLandmarkMappings.data(); }
void appendIbugLandmarkMapping(uint16_t i) override { fm.ibugLandmarkMappings.push_back(i); }
void appendIbugLandmarkMapping(uint16_t i, uint16_t j) override { fm.ibugLandmarkMappings.push_back(i);
fm.ibugLandmarkMappings.push_back(j); }
void setIbugRightContourSize(uint32_t /*n*/) override {}
uint32_t getIbugRightContourSize() const override {
return sizeof(fm.ibugRightContour) / sizeof(fm.ibugRightContour[0]); }
uint16_t* getIbugRightContour(uint32_t /*size*/) override { return const_cast<uint16_t*>(fm.ibugRightContour); }
void appendIbugRightContour(uint16_t /*i*/) override {}
void setIbugLeftContourSize(uint32_t /*n*/) override {}
uint32_t getIbugLeftContourSize() const override { return sizeof(fm.ibugLeftContour)/sizeof(fm.ibugLeftContour[0]);}
uint16_t* getIbugLeftContour(uint32_t /*size*/) override { return const_cast<uint16_t*>(fm.ibugLeftContour); }
void appendIbugLeftContour(uint16_t /*i*/) override {}
void setModelRightContourSize(uint32_t n) override { fm.modelRightContour.resize(n); }
uint32_t getModelRightContourSize() const override { return unsigned(fm.modelRightContour.size()); }
uint16_t* getModelRightContour(uint32_t size) override { if (size) fm.modelRightContour.resize(size);
return fm.modelRightContour.data(); }
void appendModelRightContour(uint16_t i) override { fm.modelRightContour.push_back(i); }
void setModelLeftContourSize(uint32_t n) override { fm.modelLeftContour.resize(n); }
uint32_t getModelLeftContourSize() const override { return unsigned(fm.modelLeftContour.size()); }
uint16_t* getModelLeftContour(uint32_t size) override { if (size) fm.modelLeftContour.resize(size);
return fm.modelLeftContour.data(); }
void appendModelLeftContour(uint16_t i) override { fm.modelLeftContour.push_back(i); }
void setAdjacentFacesSize(uint32_t n) override { fm.adjacentFaces.resize(n); }
uint32_t getAdjacentFacesSize() const override { return unsigned(fm.adjacentFaces.size()); }
uint16_t* getAdjacentFaces(uint32_t size) override { if (size) fm.adjacentFaces.resize(size);
return fm.adjacentFaces.data(); }
void appendAdjacentFace(uint16_t i) override { fm.adjacentFaces.push_back(i); }
void appendAdjacentFaces(uint16_t i, uint16_t j) override { fm.adjacentFaces.push_back(i);
fm.adjacentFaces.push_back(j); }
void setAdjacentVerticesSize(uint32_t n) override { fm.adjacentVertices.resize(n); }
uint32_t getAdjacentVerticesSize() const override { return unsigned(fm.adjacentVertices.size()); }
uint16_t* getAdjacentVertices(uint32_t size) override { if (size) fm.adjacentVertices.resize(size);
return fm.adjacentVertices.data(); }
void appendAdjacentVertex(uint16_t i) override { fm.adjacentVertices.push_back(i); }
void appendAdjacentVertices(uint16_t i, uint16_t j) override { fm.adjacentVertices.push_back(i);
fm.adjacentVertices.push_back(j); }
void setNvlmLandmarksSize(uint32_t n) override { fm.nvlmLandmarks.resize(n); }
uint32_t getNvlmLandmarksSize() const override { return (uint32_t)fm.nvlmLandmarks.size(); }
uint16_t* getNvlmLandmarks(uint32_t size) override { if (size) fm.nvlmLandmarks.resize(size);
return fm.nvlmLandmarks.data(); }
void appendNvlmLandmark(uint16_t i) override { fm.nvlmLandmarks.push_back(i); }
void setNvlmRightContourSize(uint32_t n) override { fm.nvlmRightContour.resize(n); }
uint32_t getNvlmRightContourSize() const override { return (uint32_t)fm.nvlmRightContour.size(); }
uint16_t* getNvlmRightContour(uint32_t size) override { if (size) fm.nvlmRightContour.resize(size);
return fm.nvlmRightContour.data(); }
void appendNvlmRightContour(uint16_t i) override { fm.nvlmRightContour.push_back(i); }
void setNvlmLeftContourSize(uint32_t n) override { fm.nvlmLeftContour.resize(n); }
uint32_t getNvlmLeftContourSize() const override { return (uint32_t)fm.nvlmLeftContour.size(); }
uint16_t* getNvlmLeftContour(uint32_t size) override { if (size) fm.nvlmLeftContour.resize(size);
return fm.nvlmLeftContour.data(); }
void appendNvlmLeftContour(uint16_t i) override { fm.nvlmLeftContour.push_back(i); }
void setNumPartitions(uint32_t n) override { fm.partitions.resize(n); }
void setPartitionName(uint32_t i, const char* name) override { fm.partitions.at(i).name = name; }
void setPartitionMaterialName(uint32_t i, const char* name) override { fm.partitions.at(i).materialName = name;}
void setPartition(uint32_t i, uint32_t faceIndex, uint32_t numFaces, uint32_t vertexIndex, uint32_t numVertices,
int32_t smoothingGroup) override {
fm.partitions.at(i).set(i, faceIndex, faceIndex + numFaces - 1, vertexIndex,
vertexIndex + numVertices - 1, smoothingGroup);
}
uint32_t getNumPartitions() const override { return (uint32_t)fm.partitions.size(); }
const char* getPartitionName(uint32_t i) const override { return fm.partitions.at(i).name.c_str(); }
const char* getPartitionMaterialName(uint32_t i) const override { return fm.partitions.at(i).materialName.c_str(); }
int16_t getPartition(uint32_t i, uint32_t* faceIndex, uint32_t* numFaces, uint32_t* vertexIndex,
uint32_t* numVertices, int32_t* smoothingGroup) const override {
const SimpleFaceModel::Partition& pt = fm.partitions.at(i);
if (faceIndex) *faceIndex = pt.faceIndex;
if (numFaces) *numFaces = pt.numFaces;
if (vertexIndex) *vertexIndex = pt.vertexIndex;
if (numVertices) *numVertices = pt.numVertexIndices;
if (smoothingGroup) *smoothingGroup = pt.smoothingGroup;
return (int16_t)pt.partitionIndex;
}
};
#endif // __SIMPLE_FACE_MODEL__

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######################
# The Expression app #
######################
set(APP_SRCS
ExpressionApp.cpp
MeshRenderer.cpp MeshRenderer.h
DirectoryIterator.cpp DirectoryIterator.h
BackEndOpenGL/GLMaterial.cpp BackEndOpenGL/GLMaterial.h
BackEndOpenGL/GLMesh.cpp BackEndOpenGL/GLMesh.h
BackEndOpenGL/GLShaders.cpp BackEndOpenGL/GLShaders.h
BackEndOpenGL/GLSpectrum.h
BackEndOpenGL/SimpleFaceModel.h
BackEndOpenGL/OpenGLMeshRenderer.cpp BackEndOpenGL/OpenGLMeshRenderer.h
BackEndOpenGL/FaceIO.cpp BackEndOpenGL/FaceIO.h
)
if(WIN32)
set(APP_SRCS ${APP_SRCS} nvARProxy.cpp nvCVImageProxy.cpp)
find_package(OpenGL REQUIRED)
endif(WIN32)
option(ENABLE_UI "Enable UI to adjust rigging" OFF) # ON still needs some more link debugging
if (${ENABLE_UI})
set(APP_SRCS ${APP_SRCS}
ExpressionAppUI.h
ExpressionAppUI.cpp
${CMAKE_CURRENT_SOURCE_DIR}/../external/Imgui/imgui-docking/imgui.h
${CMAKE_CURRENT_SOURCE_DIR}/../external/Imgui/imgui-docking/imconfig.h
${CMAKE_CURRENT_SOURCE_DIR}/../external/Imgui/imgui-docking/imgui_internal.h
${CMAKE_CURRENT_SOURCE_DIR}/../external/Imgui/imgui-docking/imstb_textedit.h
${CMAKE_CURRENT_SOURCE_DIR}/../external/Imgui/imgui-docking/imstb_rectpack.h
${CMAKE_CURRENT_SOURCE_DIR}/../external/Imgui/imgui-docking/imstb_truetype.h
${CMAKE_CURRENT_SOURCE_DIR}/../external/Imgui/imgui-docking/backends/imgui_impl_glfw.h
${CMAKE_CURRENT_SOURCE_DIR}/../external/Imgui/imgui-docking/backends/imgui_impl_opengl3.h
${CMAKE_CURRENT_SOURCE_DIR}/../external/Imgui/imgui-docking/backends/imgui_impl_opengl3_loader.h
${CMAKE_CURRENT_SOURCE_DIR}/../external/Imgui/imgui-docking/misc/cpp/imgui_stdlib.h
${CMAKE_CURRENT_SOURCE_DIR}/../external/Imgui/imgui-docking/imgui_tables.cpp
${CMAKE_CURRENT_SOURCE_DIR}/../external/Imgui/imgui-docking/imgui_widgets.cpp
${CMAKE_CURRENT_SOURCE_DIR}/../external/Imgui/imgui-docking/imgui.cpp
${CMAKE_CURRENT_SOURCE_DIR}/../external/Imgui/imgui-docking/imgui_draw.cpp
${CMAKE_CURRENT_SOURCE_DIR}/../external/Imgui/imgui-docking/backends/imgui_impl_glfw.cpp
${CMAKE_CURRENT_SOURCE_DIR}/../external/Imgui/imgui-docking/backends/imgui_impl_opengl3.cpp
${CMAKE_CURRENT_SOURCE_DIR}/../external/Imgui/imgui-docking/misc/cpp/imgui_stdlib.cpp
)
endif (${ENABLE_UI})
add_executable(ExpressionApp ${APP_SRCS})
target_include_directories(ExpressionApp PUBLIC
${CMAKE_CURRENT_SOURCE_DIR}
${CMAKE_CURRENT_SOURCE_DIR}/BackEndOpenGL
${CMAKE_CURRENT_SOURCE_DIR}/../utils
${CMAKE_CURRENT_SOURCE_DIR}/../external/glm/include
${SDK_INCLUDES_PATH}
)
if (${ENABLE_UI})
add_definitions("-D_ENABLE_UI")
target_include_directories(ExpressionApp PUBLIC
${CMAKE_CURRENT_SOURCE_DIR}/../external/Imgui/imgui-docking
${CMAKE_CURRENT_SOURCE_DIR}/../external/nlohmann/json/single_include/nlohmann
)
endif (${ENABLE_UI})
if(WIN32)
target_link_libraries(ExpressionApp PUBLIC
opencv346
glfw3
GLAD
${OPENGL_gl_LIBRARY}
)
target_link_directories(ExpressionApp PUBLIC
${CMAKE_CURRENT_SOURCE_DIR}/../external/GLAD/lib
${CMAKE_CURRENT_SOURCE_DIR}/../external/GLFW/lib
)
target_include_directories(ExpressionApp PUBLIC
${CMAKE_CURRENT_SOURCE_DIR}/../external/GLAD/include
${CMAKE_CURRENT_SOURCE_DIR}/../external/GLFW/include
)
set(OPENCV_PATH_STR ${CMAKE_CURRENT_SOURCE_DIR}/../external/opencv/bin)
set(PATH_STR "PATH=%PATH%" ${OPENCV_PATH_STR})
set_target_properties(ExpressionApp PROPERTIES
FOLDER SampleApps
VS_DEBUGGER_ENVIRONMENT "${PATH_STR}"
VS_DEBUGGER_COMMAND_ARGUMENTS "${CMD_ARG_STR}" )
elseif(UNIX)
#find_package(PNG REQUIRED)
#find_package(JPEG REQUIRED)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pthread -fpermissive")
target_link_libraries(ExpressionApp PUBLIC
nvARPose
NVCVImage
OpenCV
glfw
OpenGL
dl
)
endif()

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/*###############################################################################
#
# Copyright 2021 NVIDIA Corporation
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of
# this software and associated documentation files (the "Software"), to deal in
# the Software without restriction, including without limitation the rights to
# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
# the Software, and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
###############################################################################*/
#include "DirectoryIterator.h"
#ifdef _WIN32
////////////////////////////////////////////////////////////////////////////////
///// WINDOWS /////
////////////////////////////////////////////////////////////////////////////////
#include <Windows.h>
#include <string>
struct DirectoryIterator::Impl {
HANDLE h;
unsigned which;
bool first;
WIN32_FIND_DATAA data;
};
DirectoryIterator::DirectoryIterator() {
m_impl = new DirectoryIterator::Impl;
m_impl->h = nullptr;
}
DirectoryIterator::DirectoryIterator(const char *path, unsigned iterateWhat) : DirectoryIterator() {
init(path, iterateWhat);
}
DirectoryIterator::~DirectoryIterator() {
if (m_impl) {
if (m_impl->h) FindClose(m_impl->h);
delete m_impl;
}
}
int DirectoryIterator::init(const char *path, unsigned iterateWhat) {
std::string pathStar = path;
pathStar += "\\*";
if (nullptr == (m_impl->h = FindFirstFileA(pathStar.c_str(), &m_impl->data))) return -99; /* either dir or file */
m_impl->which = iterateWhat ? iterateWhat : kTypeAll;
m_impl->first = true;
return 0;
}
int DirectoryIterator::next(const char **pName, unsigned *type) {
if (!pName) return -1;
while (1) {
if (m_impl->first) {
m_impl->first = false;
}
else if (!FindNextFileA(m_impl->h, &m_impl->data)) {
*pName = nullptr;
if (type) *type = 0;
return -99;
}
*pName = m_impl->data.cFileName;
if (0 != (m_impl->data.dwFileAttributes & (
FILE_ATTRIBUTE_NORMAL |
FILE_ATTRIBUTE_ARCHIVE |
FILE_ATTRIBUTE_COMPRESSED |
FILE_ATTRIBUTE_ENCRYPTED |
FILE_ATTRIBUTE_HIDDEN |
FILE_ATTRIBUTE_INTEGRITY_STREAM |
FILE_ATTRIBUTE_NOT_CONTENT_INDEXED |
FILE_ATTRIBUTE_NO_SCRUB_DATA |
FILE_ATTRIBUTE_READONLY |
FILE_ATTRIBUTE_REPARSE_POINT |
FILE_ATTRIBUTE_SPARSE_FILE |
FILE_ATTRIBUTE_TEMPORARY
))) {
if (m_impl->which & kTypeFile) {
if (type) *type = kTypeFile;
break;
}
}
else if (0 == (m_impl->data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)) {
if (m_impl->which & kTypeDirectory) {
if (type) *type = kTypeDirectory;
break;
}
}
else {
if (m_impl->which & kTypeSpecial) {
if (type) *type = kTypeSpecial;
break;
}
}
}
return 0;
}
#else /* !_WIN32 == UNIX */
////////////////////////////////////////////////////////////////////////////////
///// UNIX /////
////////////////////////////////////////////////////////////////////////////////
#include <dirent.h>
struct DirectoryIterator::Impl {
DIR *dp;
unsigned which;
};
DirectoryIterator::DirectoryIterator() {
m_impl = new DirectoryIterator::Impl;
m_impl->dp = nullptr;
}
DirectoryIterator::DirectoryIterator(const char* path, unsigned iterateWhat) : DirectoryIterator() {
init(path, iterateWhat);
}
DirectoryIterator::~DirectoryIterator() {
if (m_impl) {
if (m_impl->dp) closedir(m_impl->dp);
delete m_impl;
}
}
int DirectoryIterator::init(const char *path, unsigned iterateWhat) {
if (nullptr == (m_impl->dp = opendir(path))) return -1;
m_impl->which = iterateWhat ? iterateWhat : kTypeAll;
return 0;
}
int DirectoryIterator::next(const char **pName, unsigned *type) {
struct dirent *entry;
if (type) *type = 0;
if (!pName) return -1;
while (nullptr != (entry = readdir(m_impl->dp))) {
*pName = entry->d_name;
switch (entry->d_type) {
case DT_REG: if (m_impl->which & kTypeFile) { if (type) *type = kTypeFile; return 0; } break;
case DT_DIR: if (m_impl->which & kTypeDirectory) { if (type) *type = kTypeDirectory; return 0; } break;
default: if (m_impl->which & kTypeSpecial) { if (type) *type = kTypeSpecial; return 0; } break;
}
}
*pName = nullptr;
return -99;
}
#endif /* UNIX */

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/*###############################################################################
#
# Copyright 2021 NVIDIA Corporation
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of
# this software and associated documentation files (the "Software"), to deal in
# the Software without restriction, including without limitation the rights to
# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
# the Software, and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
###############################################################################*/
#ifndef __DIRECTORY_ITERATOR_H
#define __DIRECTORY_ITERATOR_H
class DirectoryIterator {
public:
enum {
kTypeFile = 1,
kTypeDirectory = 2,
kTypeSpecial = 4,
kTypeAll = (kTypeFile | kTypeDirectory | kTypeSpecial)
};
/// Constructor
DirectoryIterator();
/// Constructor
/// @param[in] path The path of the directory to iterate.
/// @param[in] iterateWhat The types of files to list.
DirectoryIterator(const char *path, unsigned iterateWhat);
/// Destructor
~DirectoryIterator();
/// Start looking in a particular directory.
/// @param[in] path The path of the directory to iterate.
/// @param[in] iterateWhat The types of files to list.
/// @return 0 If successful,
/// -1 If path was NULL,
/// -99 If there are no files.
int init(const char *path, unsigned iterateWhat);
/// Get the next file.
/// @param pName[out] a place to store the name of the next file.
/// @param type[out] a place to store the type of the next file.
/// @return 0 If successful,
/// -1 If path was NULL,
/// -99 If there are no more files.
int next(const char **pName, unsigned *type);
private:
struct Impl;
Impl *m_impl;
};
#endif // __DIRECTORY_ITERATOR_H

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/*###############################################################################
#
# Copyright(c) 2020 NVIDIA CORPORATION.All Rights Reserved.
#
# NVIDIA CORPORATION and its licensors retain all intellectual property
# and proprietary rights in and to this software, related documentation
# and any modifications thereto.Any use, reproduction, disclosure or
# distribution of this software and related documentation without an express
# license agreement from NVIDIA CORPORATION is strictly prohibited.
#
###############################################################################*/
#if _ENABLE_UI
#include <map>
#include <fstream>
#include <json.hpp>
#include <imgui_internal.h>
#include "nvAR_defs.h"
#include "ExpressionAppUI.h"
#define CTL(x) ((x) & 0x1F)
static std::map<int, std::string> exprMap = {
{0 ,"browDown_L "},
{1 ,"browDown_R "},
{2 ,"browInnerUp_L "},
{3 ,"browInnerUp_R "},
{4 ,"browOuterUp_L "},
{5 ,"browOuterUp_R "},
{6 ,"cheekPuff_L "},
{7 ,"cheekPuff_R "},
{8 ,"cheekSquint_L "},
{9 ,"cheekSquint_R "},
{10 ,"eyeBlink_L "},
{11 ,"eyeBlink_R "},
{12 ,"eyeLookDown_L "},
{13 ,"eyeLookDown_R "},
{14 ,"eyeLookIn_L "},
{15 ,"eyeLookIn_R "},
{16 ,"eyeLookOut_L "},
{17 ,"eyeLookOut_R "},
{18 ,"eyeLookUp_L "},
{19 ,"eyeLookUp_R "},
{20 ,"eyeSquint_L "},
{21 ,"eyeSquint_R "},
{22 ,"eyeWide_L "},
{23 ,"eyeWide_R "},
{24 ,"jawForward "},
{25 ,"jawLeft "},
{26 ,"jawOpen "},
{27 ,"jawRight "},
{28 ,"mouthClose "},
{29 ,"mouthDimple_L "},
{30 ,"mouthDimple_R "},
{31 ,"mouthFrown_L "},
{32 ,"mouthFrown_R "},
{33 ,"mouthFunnel "},
{34 ,"mouthLeft "},
{35 ,"mouthLowerDown_L"},
{36 ,"mouthLowerDown_R"},
{37 ,"mouthPress_L "},
{38 ,"mouthPress_R "},
{39 ,"mouthPucker "},
{40 ,"mouthRight "},
{41 ,"mouthRollLower "},
{42 ,"mouthRollUpper "},
{43 ,"mouthShrugLower "},
{44 ,"mouthShrugUpper "},
{45 ,"mouthSmile_L "},
{46 ,"mouthSmile_R "},
{47 ,"mouthStretch_L "},
{48 ,"mouthStretch_R "},
{49 ,"mouthUpperUp_L "},
{50 ,"mouthUpperUp_R "},
{51 ,"noseSneer_L "},
{52 ,"noseSneer_R "}
};
static const unsigned int browStartIndex = 0;
static const unsigned int browEndIndex = 5;
static const unsigned int cheekStartIndex = 6;
static const unsigned int cheekEndIndex = 9;
static const unsigned int eyeStartIndex = 10;
static const unsigned int eyeEndIndex = 23;
static const unsigned int jawStartIndex = 24;
static const unsigned int jawEndIndex = 27;
static const unsigned int mouthStartIndex = 28;
static const unsigned int mouthEndIndex = 50;
static const unsigned int noseStartIndex = 51;
static const unsigned int noseEndIndex = 52;
static void glfw_error_callback(int error, const char* description) {
printf("Glfw Error %d: %s\n", error, description);
}
void ExpressionAppUI::init(int numExpr, int filter, int exprMode, int display, int showFPS) {
keyboard_input_ = -1;
filter_face_box_ = (filter & (NVAR_TEMPORAL_FILTER_FACE_BOX)) ? true : false;
filter_face_landmark_ = (filter & (NVAR_TEMPORAL_FILTER_FACIAL_LANDMARKS)) ? true : false;
filter_face_rot_pose_ = (filter & (NVAR_TEMPORAL_FILTER_FACE_ROTATIONAL_POSE)) ? true : false;
filter_face_expr_ = (filter & (NVAR_TEMPORAL_FILTER_FACIAL_EXPRESSIONS)) ? true : false;
filter_face_gaze_ = (filter & (NVAR_TEMPORAL_FILTER_FACIAL_GAZE)) ? true : false;
filter_enhance_expr_ = (filter & (NVAR_TEMPORAL_FILTER_ENHANCE_EXPRESSIONS)) ? true : false;
num_expressions_ = numExpr;
show_expr_ = false;
brow_expr_ = false;
cheek_expr_ = false;
eye_expr_ = false;
jaw_expr_ = false;
mouth_expr_ = false;
nose_expr_ = false;
curr_state_.expr_mode = exprMode;
omniverse_interface_window_ = false;
load_from_file_ = false;
curr_state_.calibrate = false;
curr_state_.uncalibrate = false;
curr_state_.landmark_display = (DISPLAY_LM & display) ? true: false;
curr_state_.mesh_display = (DISPLAY_MESH & display) ? true : false;
curr_state_.image_display = (DISPLAY_IMAGE & display) ? true : false;
curr_state_.bargraph_display = (DISPLAY_PLOT & display) ? true : false;
curr_state_.expr.resize(numExpr, 0.0f);
curr_state_.expr_offset.resize(numExpr, 0.0f);
curr_state_.expr_scale.resize(numExpr, 1.0f);
curr_state_.expr_exponent.resize(numExpr, 1.0f);
curr_state_.global_parameter = 1.0f;
internal_get_state_counter_ = 0;
internal_set_state_counter_ = 0;
curr_state_.input_filter = filter;
curr_state_.show_fps = showFPS;
show_filter_window_ = false;
expr = 0;
ui_state_ = curr_state_;
ui_state_.expr.resize(numExpr, 0.0f);
ui_state_.expr_offset.resize(numExpr, 0.0f);
ui_state_.expr_scale.resize(numExpr, 1.0f);
ui_state_.expr_exponent.resize(numExpr, 1.0f);
file_name_ = "";
ui_keep_running_ = true;
ui_thread_ = std::thread([this]() { uiRenderThread();});
}
void ExpressionAppUI::cleanup() {
ui_keep_running_ = false;
if (ui_thread_.joinable()) {
ui_thread_.join();
}
ui_expression_list_.clear();
}
void ExpressionAppUI::showMLPSetting() {
ImGui::PushItemWidth(100);
ImGui::InputInt("Expression Mode : 1 : Mesh Fitting , 2: MLP", &curr_state_.expr_mode);
if (curr_state_.expr_mode < 1) {
curr_state_.expr_mode = 1;
}
if (curr_state_.expr_mode > 2) {
curr_state_.expr_mode = 2;
}
ImGui::PopItemWidth();
ImGui::NewLine();
ImGui::NewLine();
}
void ExpressionAppUI::showFilterSetting() {
if (!show_filter_window_) {
if (ImGui::Button("Set Filters")) {
show_filter_window_ = true;
}
}
if (show_filter_window_) {
if (ImGui::Button("Close Filter Settings")) {
show_filter_window_ = false;
}
}
if (show_filter_window_) {
ImGui::SetNextWindowPos({ ImGui::GetCursorPosX() + 100 ,ImGui::GetCursorPosY() + 100 }, ImGuiCond_FirstUseEver);
ImGui::SetNextWindowContentSize(ImVec2(400, 400.0f));
ImGui::Begin("Filter");
curr_state_.input_filter = 0;
ImGui::Checkbox("##NVAR_TEMPORAL_FILTER_FACE_BOX", &filter_face_box_); ImGui::SameLine();
ImGui::Text("FILTER_FACE_BOX");
ImGui::NewLine();
ImGui::Checkbox("##NVAR_TEMPORAL_FILTER_FACIAL_LANDMARKS", &filter_face_landmark_); ImGui::SameLine();
ImGui::Text("FILTER_FACIAL_LANDMARKS");
ImGui::NewLine();
ImGui::Checkbox("##NVAR_TEMPORAL_FILTER_FACE_ROTATIONAL_POSE", &filter_face_rot_pose_); ImGui::SameLine();
ImGui::Text("FILTER_FACE_ROTATIONAL_POSE");
ImGui::NewLine();
ImGui::Checkbox("##NVAR_TEMPORAL_FILTER_FACIAL_EXPRESSIONS", &filter_face_expr_); ImGui::SameLine();
ImGui::Text("FILTER_FACIAL_EXPRESSIONS");
ImGui::NewLine();
ImGui::Checkbox("##NVAR_TEMPORAL_FILTER_FACIAL_GAZE", &filter_face_gaze_); ImGui::SameLine();
ImGui::Text("FILTER_FACIAL_GAZE");
ImGui::NewLine();
ImGui::Checkbox("##NVAR_TEMPORAL_FILTER_ENHANCE_EXPRESSIONS", &filter_enhance_expr_); ImGui::SameLine();
ImGui::Text("FILTER_ENHANCE_EXPRESSIONS");
ImGui::NewLine();
ImGui::NewLine();
curr_state_.input_filter |= filter_face_box_ ? NVAR_TEMPORAL_FILTER_FACE_BOX : 0;
curr_state_.input_filter |= filter_face_landmark_ ? NVAR_TEMPORAL_FILTER_FACIAL_LANDMARKS : 0;
curr_state_.input_filter |= filter_face_rot_pose_ ? NVAR_TEMPORAL_FILTER_FACE_ROTATIONAL_POSE : 0;
curr_state_.input_filter |= filter_face_expr_ ? NVAR_TEMPORAL_FILTER_FACIAL_EXPRESSIONS : 0;
curr_state_.input_filter |= filter_face_gaze_ ? NVAR_TEMPORAL_FILTER_FACIAL_GAZE : 0;
curr_state_.input_filter |= filter_enhance_expr_ ? NVAR_TEMPORAL_FILTER_ENHANCE_EXPRESSIONS : 0;
if (ImGui::Button("Close")) {
show_filter_window_ = false;
}
ImGui::End();
}
ImGui::NewLine();
ImGui::NewLine();
}
void ExpressionAppUI::showExpressionWindow() {
// Fill the list with curently active expressions
if ((1 << BROW) & expr) {
for (int i = 0; i <= 5; i++) {
ui_expression_list_.insert({ i });
}
}
else {
auto it = ui_expression_list_.find(browStartIndex);
if (it != ui_expression_list_.end()) {
auto begin = it;
std::advance(it, (browEndIndex - browStartIndex + 1));
ui_expression_list_.erase(begin, it);
}
}
if ((1 << CHEEK) & expr) {
for (int i = 6; i <= 9; i++) {
ui_expression_list_.insert({ i });
}
}
else {
auto it = ui_expression_list_.find(cheekStartIndex);
if (it != ui_expression_list_.end()) {
auto begin = it;
std::advance(it, (cheekEndIndex - cheekStartIndex + 1));
ui_expression_list_.erase(begin, it);
}
}
if ((1 << EYE) & expr) {
for (int i = 10; i <= 23; i++) {
ui_expression_list_.insert({ i });
}
}
else {
auto it = ui_expression_list_.find(eyeStartIndex);
if (it != ui_expression_list_.end()) {
auto begin = it;
std::advance(it, (eyeEndIndex - eyeStartIndex + 1));
ui_expression_list_.erase(begin, it);
}
}
if ((1 << JAW) & expr) {
for (int i = 24; i <= 27; i++) {
ui_expression_list_.insert({ i });
}
}
else {
auto it = ui_expression_list_.find(jawStartIndex);
if (it != ui_expression_list_.end()) {
auto begin = it;
std::advance(it, (jawEndIndex - jawStartIndex + 1));
ui_expression_list_.erase(begin, it);
}
}
if ((1 << MOUTH) & expr) {
for (int i = 28; i <= 50; i++) {
ui_expression_list_.insert({ i });
}
}
else {
auto it = ui_expression_list_.find(mouthStartIndex);
if (it != ui_expression_list_.end()) {
auto begin = it;
std::advance(it, (mouthEndIndex - mouthStartIndex + 1));
ui_expression_list_.erase(begin, it);
}
}
if ((1 << NOSE) & expr) {
for (int i = 51; i <= 52; i++) {
ui_expression_list_.insert({ i });
}
}
else {
auto it = ui_expression_list_.find(noseStartIndex);
if (it != ui_expression_list_.end()) {
auto begin = it;
std::advance(it, (noseEndIndex - noseStartIndex + 1));
ui_expression_list_.erase(begin, it);
}
}
ImGui::SetNextWindowContentSize(ImVec2(1080, 400.0f));
ImGui::Begin("Expressions");
ImGui::NewLine();
ImGui::NewLine();
ImGui::SliderFloat("Global Expression Parameter: Filter the effect of scaling and offset", &curr_state_.global_parameter, 0.0f, 1.0f);
ImGui::NewLine();
ImGui::NewLine();
expr = 0;
for (auto it = ui_expression_list_.begin(); it != ui_expression_list_.end(); it++) {
ImGui::PushItemWidth(400);
char overlay_buf[32];
ImFormatString(overlay_buf, IM_ARRAYSIZE(overlay_buf), "%.04f%%", curr_state_.expr[*it]);
ImGui::ProgressBar(curr_state_.expr[*it], ImVec2(0.0f, 0.0f), overlay_buf);
ImGui::SameLine(0.0f, ImGui::GetStyle().ItemInnerSpacing.x);
int id = *it;
ImGui::Text("%s", exprMap[id].c_str());
ImGui::SameLine(0.0f, ImGui::GetStyle().ItemInnerSpacing.x);
ImGui::SetCursorPosX(ImGui::GetCursorPosX() + 50);
ImGui::PushItemWidth(100);
ImGui::Text("Scale(0.0-2.0)");
ImGui::SameLine();
std::string scaleLabel = "##Scale:" + exprMap[*it];
ImGui::SliderFloat(scaleLabel.c_str(), &curr_state_.expr_scale[*it], 0.0f, 2.0f);
ImGui::SameLine();
ImGui::SetCursorPosX(ImGui::GetCursorPosX() + 10);
ImGui::Text("Offset(-1.0 to 1.0)");
ImGui::SameLine();
std::string offsetLabel = "##Offset:" + exprMap[*it];
ImGui::SliderFloat(offsetLabel.c_str(), &curr_state_.expr_offset[*it], -1.0f, 1.0f);
ImGui::SameLine();
ImGui::SetCursorPosX(ImGui::GetCursorPosX() + 10);
ImGui::Text("Exponent(0.0 to 2.0)");
ImGui::SameLine();
std::string expLabel = "##Exponent:" + exprMap[*it];
ImGui::SliderFloat(expLabel.c_str(), &curr_state_.expr_exponent[*it], 0.0f, 2.0f);
ImGui::PopItemWidth();
}
ImGui::End();
}
void ExpressionAppUI::showExpressionPane() {
ImGui::Text("Expression Graph Options");
ImGui::Checkbox("Brow", &brow_expr_); ImGui::SameLine(0.0f, ImGui::GetStyle().ItemInnerSpacing.x);
ImGui::Checkbox("Cheek", &cheek_expr_); ImGui::SameLine(0.0f, ImGui::GetStyle().ItemInnerSpacing.x);
ImGui::Checkbox("Eye", &eye_expr_); ImGui::SameLine(0.0f, ImGui::GetStyle().ItemInnerSpacing.x);
ImGui::Checkbox("Jaw", &jaw_expr_); ImGui::SameLine(0.0f, ImGui::GetStyle().ItemInnerSpacing.x);
ImGui::Checkbox("Mouth", &mouth_expr_); ImGui::SameLine(0.0f, ImGui::GetStyle().ItemInnerSpacing.x);
ImGui::Checkbox("Nose", &nose_expr_);
expr |= (brow_expr_) ? (1 << BROW) : 0;
expr |= (cheek_expr_) ? (1 << CHEEK) : 0;
expr |= (eye_expr_) ? (1 << EYE) : 0;
expr |= (jaw_expr_) ? (1 << JAW) : 0;
expr |= (mouth_expr_) ? (1 << MOUTH) : 0;
expr |= (nose_expr_) ? (1 << NOSE) : 0;
if (expr) {
show_expr_ = true;
}
else {
if (ui_expression_list_.empty() == false) {
ui_expression_list_.clear();
}
show_expr_ = false;
}
if (show_expr_) {
showExpressionWindow();
}
ImGui::NewLine();
ImGui::NewLine();
}
void ExpressionAppUI::showCalibrationSetting() {
if (ImGui::Button("Calibrate")) {
curr_state_.calibrate = true;
}
ImGui::SameLine(0.0f, ImGui::GetStyle().ItemInnerSpacing.x);
ImGui::SetCursorPosX(ImGui::GetCursorPosX() + 50);
if (ImGui::Button("Uncalibrate")) {
curr_state_.uncalibrate = true;
}
ImGui::NewLine();
}
void ExpressionAppUI::showLandmarkOption() {
ImGui::SameLine();
ImGui::SetCursorPosX(ImGui::GetCursorPosX() + 50);
ImGui::Checkbox("Landmark", &curr_state_.landmark_display);
ImGui::SameLine();
ImGui::Checkbox("Mesh", &curr_state_.mesh_display);
ImGui::SameLine();
ImGui::Checkbox("Graph", &curr_state_.bargraph_display);
ImGui::SameLine();
ImGui::Checkbox("Image", &curr_state_.image_display);
}
void ExpressionAppUI::showImageDisplaySettings() {
ImGui::Text("Image Settings");
showLandmarkOption();
ImGui::NewLine();
}
void ExpressionAppUI::showFPSSetting() {
ImGui::Checkbox("Toggle FPS Display", &curr_state_.show_fps);
ImGui::NewLine();
}
void ExpressionAppUI::saveConfigToFile() {
std::ofstream configFile;
std::string fileName = "ExpressionAppSettings.json";
configFile.open(fileName.c_str());
nlohmann::json settings; {
settings["MLP"] = curr_state_.expr_mode;
settings["Filter"] = curr_state_.input_filter;
settings["Expressions"] = curr_state_.expr;
settings["ExpressionsOffset"] = curr_state_.expr_offset;
settings["ExpressionsScale"] = curr_state_.expr_scale;
settings["ExpressionsExponent"] = curr_state_.expr_exponent;
settings["GlobalParameter"] = curr_state_.global_parameter;
}
configFile << settings;
configFile.close();
}
void ExpressionAppUI::loadConfgFromFile(const char* filePath) {
std::ifstream configFile;
std::string fileName;
if (!filePath) {
fileName = "ExpressionAppSettings.json";
}
else {
fileName = filePath;
}
configFile.open(fileName.c_str());
if (configFile) {
auto settings = nlohmann::json::parse(configFile); {
curr_state_.expr_mode = settings["MLP"];
curr_state_.input_filter = settings["Filter"];
curr_state_.expr = settings["Expressions"].get<std::vector<float>>();
curr_state_.expr_offset = settings["ExpressionsOffset"].get<std::vector<float>>();
curr_state_.expr_scale = settings["ExpressionsScale"].get<std::vector<float>>();
curr_state_.expr_exponent = settings["ExpressionsExponent"].get<std::vector<float>>();
curr_state_.global_parameter = settings["GlobalParameter"];
}
}
filter_face_box_ = (curr_state_.input_filter & NVAR_TEMPORAL_FILTER_FACE_BOX) ? true : false;
filter_face_landmark_ = (curr_state_.input_filter & NVAR_TEMPORAL_FILTER_FACIAL_LANDMARKS) ? true : false;
filter_face_rot_pose_ = (curr_state_.input_filter & NVAR_TEMPORAL_FILTER_FACE_ROTATIONAL_POSE) ? true : false;
filter_face_expr_ = (curr_state_.input_filter & NVAR_TEMPORAL_FILTER_FACIAL_EXPRESSIONS) ? true : false;
filter_face_gaze_ = (curr_state_.input_filter & NVAR_TEMPORAL_FILTER_FACIAL_GAZE) ? true : false;
filter_enhance_expr_ = (curr_state_.input_filter & NVAR_TEMPORAL_FILTER_ENHANCE_EXPRESSIONS) ? true : false;
}
void ExpressionAppUI::openFileLoadSettings() {
if (load_from_file_) {
ImGui::SetNextWindowContentSize(ImVec2(500, 100.0f));
ImGui::Begin("Config Settings");
ImGui::Text("Enter Full File name with path eg : C:\\sample.json (no double quotes)");
ImGui::InputText("##FileName", &file_name_);
ImGui::NewLine();
ImGui::SetCursorPosX(ImGui::GetCursorPosX() + 30);
if (ImGui::Button("OK")) {
loadConfgFromFile(file_name_.c_str());
load_from_file_ = false;
}
ImGui::SameLine();
if (ImGui::Button("Cancel")) {
load_from_file_ = false;
}
ImGui::End();
}
}
void ExpressionAppUI::showSaveSettingsOption() {
ImGui::NewLine();
ImGui::SetCursorPosX(ImGui::GetCursorPosX() + 10);
if (ImGui::Button("SaveSettings")) {
saveConfigToFile();
}
ImGui::SameLine();
ImGui::SetCursorPosX(ImGui::GetCursorPosX() + 50);
if (ImGui::Button("LoadSettings")) {
loadConfgFromFile(NULL);
}
ImGui::SameLine();
ImGui::SetCursorPosX(ImGui::GetCursorPosX() + 50);
if (load_from_file_) {
openFileLoadSettings();
if (ImGui::Button("Close Settings Window")) {
load_from_file_ = false;
}
}
else {
if (ImGui::Button("LoadSettingsFromFile")) {
load_from_file_ = true;
}
}
}
void ExpressionAppUI::closeAppSettings() {
ImGui::NewLine();
ImGui::NewLine();
ImGui::SetCursorPosX(ImGui::GetCursorPosX() + 170);
if (ImGui::Button("App shutdown")) {
curr_state_.kill_app_ = true;
}
}
void ExpressionAppUI::CreateUIElements() {
showMLPSetting();
showFilterSetting();
showExpressionPane();
showCalibrationSetting();
showImageDisplaySettings();
showFPSSetting();
showSaveSettingsOption();
closeAppSettings();
}
void ExpressionAppUI::stateQuerybyCore(unsigned int& displayMode, unsigned int& exprMode, unsigned int& filter, bool& calibrate, bool& uncalibrate, bool& showFPS,
float& globalParam, std::vector<float>& expressionOffset, std::vector<float>& expressionScale, std::vector<float>& expressionExponent, bool& killApp) {
{
std::lock_guard<std::mutex> lock(ui_mutex_);
displayMode = ((ui_state_.landmark_display == true) ? DISPLAY_LM : 0) + ((ui_state_.mesh_display == true) ? DISPLAY_MESH : 0) + ((ui_state_.bargraph_display == true) ? DISPLAY_PLOT : 0) + ((ui_state_.image_display == true) ? DISPLAY_IMAGE : 0);;
filter = ui_state_.input_filter;
calibrate = ui_state_.calibrate;
uncalibrate = ui_state_.uncalibrate;
showFPS = ui_state_.show_fps;
exprMode = ui_state_.expr_mode;
globalParam = ui_state_.global_parameter;
expressionOffset = ui_state_.expr_offset;
expressionScale = ui_state_.expr_scale;
expressionExponent = ui_state_.expr_exponent;
killApp = ui_state_.kill_app_;
}
}
void ExpressionAppUI::stateSetbyCore(std::vector<float> expression,
std::vector<float> expressionOffset, std::vector<float> expressionScale, std::vector<float> expressionExponent, bool isCalibrated, int key) {
{
std::lock_guard<std::mutex> lock(ui_mutex_);
ui_state_.expr = expression;
ui_state_.expr_offset = expressionOffset;
ui_state_.expr_scale = expressionScale;
ui_state_.expr_exponent = expressionExponent;
if ((internal_get_state_counter_ == internal_set_state_counter_) && (isCalibrated)) {
ui_state_.calibrate = false;
ui_state_.uncalibrate = false;
}
if (key >= 0) {
keyboard_input_ = key;
}
}
}
void ExpressionAppUI::checkForKeyInput() {
if (keyboard_input_ >= 0) {
switch (keyboard_input_) {
case 27 /*ESC*/:
case 'q': case 'Q': curr_state_.kill_app_ = true; break; // Quit
case 'i': curr_state_.image_display = !ui_state_.image_display; break;
case 'l': curr_state_.landmark_display = !ui_state_.landmark_display; break;
case 'm': curr_state_.mesh_display = !ui_state_.mesh_display; break;
case 'n': curr_state_.calibrate = true; break;
case 'p': curr_state_.bargraph_display = !ui_state_.bargraph_display; break;
case 'f': curr_state_.show_fps = !ui_state_.show_fps; break;
case '1': curr_state_.expr_mode = 1; break;
case '2': curr_state_.expr_mode = 2; break;
case 'L': case CTL('L'): filter_face_landmark_ = !filter_face_landmark_;
curr_state_.input_filter ^= NVAR_TEMPORAL_FILTER_FACIAL_LANDMARKS; break;
case 'N': case CTL('N'): curr_state_.uncalibrate = true;; break;
case 'P': case CTL('P'): filter_face_rot_pose_ = !filter_face_rot_pose_;
curr_state_.input_filter ^= NVAR_TEMPORAL_FILTER_FACE_ROTATIONAL_POSE; break;
case 'E': case CTL('E'): filter_face_expr_ = !filter_face_expr_;
curr_state_.input_filter ^= NVAR_TEMPORAL_FILTER_FACIAL_EXPRESSIONS; break;
case 'G': case CTL('G'): filter_face_gaze_ = !filter_face_gaze_;
curr_state_.input_filter ^= NVAR_TEMPORAL_FILTER_FACIAL_GAZE; break;
case 'C': case CTL('C'): filter_enhance_expr_ = !filter_enhance_expr_;
curr_state_.input_filter ^= NVAR_TEMPORAL_FILTER_ENHANCE_EXPRESSIONS; break;
default: // No key
break;
}
keyboard_input_ = -1;
}
}
void ExpressionAppUI::setStateToLocal() {
std::lock_guard<std::mutex> lock(ui_mutex_);
ui_state_ = curr_state_;
ui_state_.expr = curr_state_.expr;
ui_state_.expr_exponent = curr_state_.expr_exponent;
ui_state_.expr_offset = curr_state_.expr_offset;
ui_state_.expr_scale = curr_state_.expr_scale;
ui_state_.kill_app_ = curr_state_.kill_app_;
internal_set_state_counter_ = internal_get_state_counter_;
if (internal_get_state_counter_ > 100000) {
internal_get_state_counter_ = internal_set_state_counter_ = 0;
}
}
void ExpressionAppUI::getStateFromLocal() {
std::lock_guard<std::mutex> lock(ui_mutex_);
curr_state_ = ui_state_;
curr_state_.expr = ui_state_.expr;
curr_state_.expr_exponent = ui_state_.expr_exponent;
curr_state_.expr_offset = ui_state_.expr_offset;
curr_state_.expr_scale = ui_state_.expr_scale;
internal_get_state_counter_++;
}
void ExpressionAppUI::uiRenderThread() {
ImVec4 clear_color_;
glfwSetErrorCallback(glfw_error_callback);
glfwInit();
GLFWwindow* window = glfwCreateWindow(640, 540, "Expression App Interface", NULL, NULL);
if (window == NULL) {
GLenum err = glGetError();
printf("Create window failed : %d", err);
}
glfwMakeContextCurrent(window);
glfwSwapInterval(1); // Enable vsync
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
IMGUI_CHECKVERSION();
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO(); (void)io;
io.ConfigFlags |= ImGuiConfigFlags_DockingEnable; // Enable Docking
io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable; // Enable Multi-Viewport / Platform Windows
ImGui::StyleColorsDark();
ImGuiStyle& style = ImGui::GetStyle();
if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable) {
style.WindowRounding = 0.0f;
style.Colors[ImGuiCol_WindowBg].w = 1.0f;
}
// Setup Platform/Renderer backends
ImGui_ImplGlfw_InitForOpenGL(window, true);
ImGui_ImplOpenGL3_Init("#version 130");
setStateToLocal();
{
std::lock_guard<std::mutex> lock(ui_mutex_);
internal_get_state_counter_ = 0;
internal_set_state_counter_ = 0;
}
while (!glfwWindowShouldClose(window) && ui_keep_running_) {
if (!ui_keep_running_) {
break;
}
glfwPollEvents();
ImGui_ImplOpenGL3_NewFrame();
ImGui_ImplGlfw_NewFrame();
ImGui::NewFrame();
{
ImGui::SetNextWindowContentSize(ImVec2(500, 500.0f));
ImGui::Begin("Expression: Input Options");
getStateFromLocal();
CreateUIElements();
checkForKeyInput();
setStateToLocal();
ImGui::End();
}
ImGui::Render();
int display_w, display_h;
glfwGetFramebufferSize(window, &display_w, &display_h);
glViewport(0, 0, display_w, display_h);
glClearColor(clear_color_.x * clear_color_.w, clear_color_.y * clear_color_.w, clear_color_.z * clear_color_.w, clear_color_.w);
glClear(GL_COLOR_BUFFER_BIT);
ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
if (ImGui::GetIO().ConfigFlags & ImGuiConfigFlags_ViewportsEnable) {
GLFWwindow* backup_current_context = glfwGetCurrentContext();
ImGui::UpdatePlatformWindows();
ImGui::RenderPlatformWindowsDefault();
glfwMakeContextCurrent(backup_current_context);
}
glfwSwapBuffers(window);
}
ImGui_ImplOpenGL3_Shutdown();
ImGui_ImplGlfw_Shutdown();
ImGui::DestroyContext();
glfwDestroyWindow(window);
// TODO: call terminate if GL renderer is not being used
// glfwTerminate();
}
#endif

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/*###############################################################################
#
# Copyright(c) 2020 NVIDIA CORPORATION.All Rights Reserved.
#
# NVIDIA CORPORATION and its licensors retain all intellectual property
# and proprietary rights in and to this software, related documentation
# and any modifications thereto.Any use, reproduction, disclosure or
# distribution of this software and related documentation without an express
# license agreement from NVIDIA CORPORATION is strictly prohibited.
#
###############################################################################*/
#pragma once
#if _ENABLE_UI
#include <set>
#include <atomic>
#include <thread>
#include <mutex>
#include <string>
#include <vector>
#include <GLFW/glfw3.h>
#include <imgui.h>
#include <backends/imgui_impl_glfw.h>
#include <backends/imgui_impl_opengl3.h>
#include <misc/cpp/imgui_stdlib.h>
enum exprType {
BROW = 1,
CHEEK,
EYE,
JAW,
MOUTH,
NOSE
};
enum {
DISPLAY_MESH = (1 << 0),
DISPLAY_IMAGE = (1 << 1),
DISPLAY_PLOT = (1 << 2),
DISPLAY_LM = (1 << 3)
};
struct ExpressionState {
int input_filter;
float global_parameter;
int expr_mode;
unsigned long counter;
bool calibrate;
bool uncalibrate;
bool landmark_display;
bool mesh_display;
bool image_display;
bool bargraph_display;
bool show_fps;
bool kill_app_;
std::vector<float> expr;
std::vector<float> expr_scale;
std::vector<float> expr_offset;
std::vector<float> expr_exponent;
ExpressionState() {
input_filter = -1;
counter = 0;
global_parameter = 1.0f;
expr_mode = 1;
calibrate = false;
uncalibrate = false;
landmark_display = false;
mesh_display = false;
image_display = false;
bargraph_display = false;
show_fps = false;
kill_app_ = false;
}
};
class ExpressionAppUI {
public:
//============= State Management =================
void init(int numExpr, int filter, int exprMode, int display, int showFPS);
void cleanup();
void stateQuerybyCore(unsigned int& displayMode, unsigned int& exprMode, unsigned int& filter, bool& calibrate, bool& uncalibrate, bool& showFPS,
float& globalParam, std::vector<float>& expressionOffset, std::vector<float>& expressionScale, std::vector<float>& expressionExponent, bool& killApp);
void stateSetbyCore(std::vector<float> expression,
std::vector<float> expressionOffset, std::vector<float> expressionScale, std::vector<float> expressionExponent, bool isCalibrated = false, int key = -1);
private:
void uiRenderThread();
void getStateFromLocal();
void setStateToLocal();
//============= UI calls ====================
void CreateUIElements(); // main API to create UI compoenents
void showMLPSetting();
void showStreamingSetting();
void showFilterSetting();
void showExpressionPane();
void showExpressionWindow();
void showCalibrationSetting();
void showImageDisplaySettings();
void showLandmarkOption();
void showFPSSetting();
void showSaveSettingsOption();
void saveConfigToFile();
void loadConfgFromFile(const char* filePath = NULL);
void openFileLoadSettings();
void closeAppSettings();
void checkForKeyInput();
//================= Filter =======================
bool filter_face_box_;
bool filter_face_landmark_;
bool filter_face_rot_pose_;
bool filter_face_expr_;
bool filter_face_gaze_;
bool filter_enhance_expr_;
//================= Expression ===================
bool show_expr_;
bool brow_expr_;
bool cheek_expr_;
bool eye_expr_ ;
bool jaw_expr_ ;
bool mouth_expr_;
bool nose_expr_;
std::set<int> ui_expression_list_;
//=================================================
std::atomic_bool omniverse_interface_window_;
std::atomic_int keyboard_input_;
bool load_from_file_;
bool show_filter_window_;
int expr;
ExpressionState ui_state_;
ExpressionState curr_state_;
std::atomic_bool ui_keep_running_;
std::thread ui_thread_;
std::mutex ui_mutex_;
std::string file_name_;
unsigned long internal_get_state_counter_;
unsigned long internal_set_state_counter_;
int32_t num_expressions_;
};
#endif

332
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/*###############################################################################
#
# Copyright 2021 NVIDIA Corporation
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of
# this software and associated documentation files (the "Software"), to deal in
# the Software without restriction, including without limitation the rights to
# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
# the Software, and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
###############################################################################*/
#ifdef _WIN32
#define _WINSOCKAPI_
#include <windows.h>
#include <tchar.h>
#else // UNIX
#include <dlfcn.h>
typedef void *HMODULE;
typedef void *HANDLE;
typedef void *HINSTANCE;
#endif // _WIN32 || UNIX
#include "MeshRenderer.h"
#include "DirectoryIterator.h"
#include "OpenGLMeshRenderer.h" // Eventually this will be discoverable
#include <string.h>
#include <string>
#include <vector>
#ifdef _WIN32
#define nvLoadLibrary(library) LoadLibrary(TEXT(library))
#else // UNIX
#define nvLoadLibrary(library) dlopen(library, RTLD_LAZY)
#endif // _WIN32 || UNIX
inline void* nvGetProcAddress(HINSTANCE handle, const char *proc) {
if (nullptr == handle) return nullptr;
#ifdef _WIN32
return GetProcAddress(handle, proc);
#else // UNIX
return dlsym(handle, proc);
#endif // _WIN32 || UNIX
}
inline int nvFreeLibrary(HINSTANCE handle) {
if (nullptr == handle) return -1;
#ifdef _WIN32
return int(!FreeLibrary(handle)); // convert bool true to 0 int and 1 error code
#else // UNIX
return dlclose(handle); // 0 on success, error code otherwise
#endif // _WIN32 || UNIX
}
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
///// Abstract class MeshRenderer /////
///// This merely converts from a C++ to a C object call. /////
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
#ifdef DEBUG_CAST // We never instantiate MeshRenderer, only ClubMeshRenderer, so we don't need a dynamic cast.
#define static_cast dynamic_cast // But #define this to prove it
#endif // DEBUG_CAST
NvCV_Status MeshRenderer::name(const char **str) const {
return m_dispatch.name(str);
}
NvCV_Status MeshRenderer::info(const char **str) const {
return m_dispatch.info(str);
}
void MeshRenderer::destroy() {
m_dispatch.destroy(this);
}
NvCV_Status MeshRenderer::read(const char *modelFile) {
return m_dispatch.read(this, modelFile);
}
NvCV_Status MeshRenderer::init(unsigned width, unsigned height, const char *windowName) {
return m_dispatch.init(this, width, height, windowName);
}
NvCV_Status MeshRenderer::setCamera(const float locPt[3], const float lookVec[3], const float upVec[3], float vfov) {
return m_dispatch.setCamera(this, locPt, lookVec, upVec, vfov);
}
NvCV_Status MeshRenderer::render(const float exprs[53], const float qrot[4], const float trans[3], NvCVImage *result) {
return m_dispatch.render(this, exprs, qrot, trans, result);
}
MeshRenderer::Dispatch::Dispatch() {
memset(this, 0, sizeof(*this));
}
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
///// MeshRendererBroker /////
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
class RendererInfo {
public:
std::string name, info, file;
HMODULE module;
MeshRenderer::Dispatch dispatch;
RendererInfo() {
memset(&dispatch, 0, sizeof(dispatch));
module = nullptr;
}
};
class MeshRendererBroker::Impl {
public:
static const char nameStr[], infoStr[], createStr[], destroyStr[], readStr[], initStr[], setCameraStr[], renderStr[];
std::string rendererDirectory;
std::vector<RendererInfo> renderers;
NvCV_Status GetRenderers();
NvCV_Status LoadRenderer(const char *name);
NvCV_Status UnloadRenderer(const char *name);
bool AlreadyHave(const char *name);
~Impl() {
for (RendererInfo& ri : renderers)
(void)UnloadRenderer(ri.name.c_str());
}
};
const char MeshRendererBroker::Impl::nameStr[] = "RendererName";
const char MeshRendererBroker::Impl::infoStr[] = "RendererInfo";
const char MeshRendererBroker::Impl::createStr[] = "RendererName";
const char MeshRendererBroker::Impl::destroyStr[] = "RendererDestroy";
const char MeshRendererBroker::Impl::readStr[] = "RendererReadModel";
const char MeshRendererBroker::Impl::initStr[] = "RendererInit";
const char MeshRendererBroker::Impl::setCameraStr[] = "RendererSetCamera";
const char MeshRendererBroker::Impl::renderStr[] = "RendererRender";
static bool HasDLLSuffix(const char *name) {
static const char dllSuffix[] =
#ifdef _WIN32
".dll"
#else // UNIX
".so"
#endif // _WIN32 || UNIX
;
constexpr unsigned suf_len = sizeof(dllSuffix) - 1; // Strings have a NULL terminator, are not part of the string
unsigned name_len = unsigned(strlen(name));
return name_len > suf_len && !strcmp(name + name_len - suf_len, dllSuffix);
}
bool MeshRendererBroker::Impl::AlreadyHave(const char* name) {
for (const RendererInfo& ri : renderers)
if (ri.name == name)
return true;
return false;
}
NvCV_Status MeshRendererBroker::Impl::GetRenderers() {
if (rendererDirectory.empty()) // Or should we pass in the directory as an argument?
return NVCV_ERR_INITIALIZATION; // The renderer directory was not initialized.
DirectoryIterator dit(rendererDirectory.c_str(), DirectoryIterator::kTypeFile);
const char *fileName;
unsigned type;
while (0 == dit.next(&fileName, &type)) {
if (!HasDLLSuffix(fileName))
continue;
std::string path = rendererDirectory + '/' + fileName;
HINSTANCE lib = nvLoadLibrary(path.c_str());
if (!lib)
continue;
typedef NvCV_Status(*GetStringFunc)(const char** str);
GetStringFunc getString;
const char *name = nullptr, *info = nullptr;
if ((nullptr != (getString = reinterpret_cast<GetStringFunc>(nvGetProcAddress(lib, nameStr)))) &&
(NVCV_SUCCESS == (*getString)(&name)) &&
(nullptr != (getString = reinterpret_cast<GetStringFunc>(nvGetProcAddress(lib, infoStr)))) &&
(NVCV_SUCCESS == (*getString)(&info)) &&
!AlreadyHave(name)
) {
unsigned i = unsigned(renderers.size());
renderers.resize(i + 1);
RendererInfo& ri = renderers[i];
ri.name.assign(name);
ri.info.assign(info);
ri.file.assign(path);
}
nvFreeLibrary(lib);
}
return NVCV_SUCCESS;
}
NvCV_Status MeshRendererBroker::Impl::LoadRenderer(const char *name) {
for (RendererInfo& ri : renderers) {
if (name == ri.name) {
if (!ri.module) {
ri.module = nvLoadLibrary(ri.file.c_str());
// BE VERY CAREFUL WHEN CHANGING FUNCTION SIGNATURES, ESPECIALLY FOR WINDOWS!!!! THERE ARE NO CHECKS BELOW!!!!
*((void**)&ri.dispatch.name) = nvGetProcAddress(ri.module, nameStr);
*((void**)&ri.dispatch.info) = nvGetProcAddress(ri.module, infoStr);
*((void**)&ri.dispatch.create) = nvGetProcAddress(ri.module, createStr);
*((void**)&ri.dispatch.destroy) = nvGetProcAddress(ri.module, destroyStr);
*((void**)&ri.dispatch.read) = nvGetProcAddress(ri.module, readStr);
*((void**)&ri.dispatch.init) = nvGetProcAddress(ri.module, initStr);
*((void**)&ri.dispatch.setCamera) = nvGetProcAddress(ri.module, setCameraStr);
*((void**)&ri.dispatch.render) = nvGetProcAddress(ri.module, renderStr);
}
return NVCV_SUCCESS;
}
}
return NVCV_ERR_FEATURENOTFOUND;
}
NvCV_Status MeshRendererBroker::Impl::UnloadRenderer(const char *name) {
NvCV_Status err = NVCV_ERR_FEATURENOTFOUND;
for (RendererInfo& ri : renderers) {
if (name == ri.name) {
err = !ri.module ? NVCV_SUCCESS : nvFreeLibrary(ri.module) ? NVCV_ERR_LIBRARY : NVCV_SUCCESS;
ri.module = nullptr;
memset(&ri.dispatch, 0, sizeof(ri.dispatch));
break;
}
}
return err;
}
MeshRendererBroker::MeshRendererBroker() {
NvCV_Status err;
m_impl = new Impl;
// Automatically register the OpenGL Renderer
MeshRenderer::Dispatch disp;
if (NVCV_SUCCESS == (err = OpenGLMeshRenderer_InitDispatch(&disp)))
MeshRendererBroker::addRenderer(&disp);
}
MeshRendererBroker::~MeshRendererBroker() {
delete m_impl;
}
NvCV_Status MeshRendererBroker::setRendererDirectory(const char *dir) {
// Load more renderers from DLLs in the given directory
m_impl->rendererDirectory = dir;
return m_impl->GetRenderers();
}
NvCV_Status MeshRendererBroker::getMeshRendererList(std::vector<std::string>& list) {
list.clear();
list.resize(m_impl->renderers.size());
for (size_t i = 0; i < list.size(); ++i)
list[i] = m_impl->renderers[i].name;
return list.size() ? NVCV_SUCCESS : NVCV_ERR_FEATURENOTFOUND;
}
NvCV_Status MeshRendererBroker::info(const char *renderer, const char **info) {
if (!info)
return NVCV_ERR_PARAMETER;
for (const RendererInfo& ri : m_impl->renderers) {
if (ri.name == renderer) {
*info = ri.info.c_str();
return NVCV_SUCCESS;
}
}
*info = nullptr;
return NVCV_ERR_FEATURENOTFOUND;
}
NvCV_Status MeshRendererBroker::create(const char *renderer, MeshRenderer **han) {
if (!han)
return NVCV_ERR_PARAMETER;
for (const RendererInfo& ri : m_impl->renderers) {
if (ri.name == renderer) {
if (!ri.dispatch.create) {
NvCV_Status err = m_impl->LoadRenderer(renderer);
if (NVCV_SUCCESS != err)
return err;
}
return ri.dispatch.create(han);
}
}
*han = nullptr;
return NVCV_ERR_FEATURENOTFOUND;
}
void MeshRendererBroker::addRenderer(MeshRenderer::Dispatch *disp) {
unsigned n = unsigned(m_impl->renderers.size());
m_impl->renderers.resize(n + 1);
RendererInfo& ri = m_impl->renderers[n];
ri.dispatch = *disp;
const char *str;
disp->name(&str); ri.name = str;
disp->info(&str); ri.info = str;
}

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/*###############################################################################
#
# Copyright 2021 NVIDIA Corporation
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of
# this software and associated documentation files (the "Software"), to deal in
# the Software without restriction, including without limitation the rights to
# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
# the Software, and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
###############################################################################*/
#ifndef __MESH_RENDERER__
#define __MESH_RENDERER__
#include "nvCVImage.h"
#include <string>
#include <vector>
/// Abstract class to provide methods and hide the implementation.
class MeshRenderer {
public:
struct Dispatch {
// We get these procs from the DLL
NvCV_Status (*name)(const char **str);
NvCV_Status (*info)(const char **str);
NvCV_Status (*create)(MeshRenderer **han);
void (*destroy)(MeshRenderer *han);
NvCV_Status (*read)(MeshRenderer *han, const char *modelFile);
NvCV_Status (*init)(MeshRenderer *han, unsigned width, unsigned height, const char *windowName);
NvCV_Status (*setCamera)(MeshRenderer *han,
const float locPt[3], const float lookVec[3], const float upVec[3], float vfov);
NvCV_Status (*render)(MeshRenderer *han,
const float exprs[53], const float qrot[4], const float trans[3], NvCVImage *result);
Dispatch();
~Dispatch() {}
};
/// Destructor.
void destroy();
/// Get the name of the renderer associated with the given handle.
/// @param[out] str a place to store a pointer to the name of the mesh renderer.
/// @return NVCV_SUCCESS if the specified mesh renderer was successfully instantiated.
NvCV_Status name(const char **str) const;
/// Get information about the renderer.
/// @param[out] str a place to store a pointer to the name of the mesh renderer.
/// @return NVCV_SUCCESS if the specified mesh renderer was successfully instantiated.
NvCV_Status info(const char **str) const;
/// Read the specified mesh model.
/// If another model was already loaded, it will first be unloaded.
/// If a relative path is specified, several places are searched.
/// @param[in] modelFile the name of the file containing the desired mesh model.
/// @return NVCV_SUCCESS if the model was read successfully.
NvCV_Status read(const char *modelFile);
/// Initialize the rendering resources.
/// @param[in] width The desired width of the rendered image.
/// @param[in] height The desired height of the rendered image.
/// @param[in] windowName The name given to the auxiliary window, if the renderer requires one.
/// @return NVCV_SUCCESS if the renderer was successfully initialized.
NvCV_Status init(unsigned width, unsigned height, const char *windowName);
/// Set the viewing parameters.
/// @param[in] locPt the 3D point location of the camera.
/// NULL implies the default location, derived from the rest pose of the model.
/// @param[in] lookVec the 3D vector indicating the direction of view. This does not need to be normalized.
/// NULL implies the default direction, derived from the rest pose of the model.
/// @param[in] upVec the 3D vector pointing up. This does not need to be normalized.
/// NULL implies the default up direction, derived from the rest pose of the model.
/// @param[in] vfov the vertical field of view of the camera. Zero implies an orthographic camera.
/// @return NVCV_SUCCESS if the camera was initialized successfully.
NvCV_Status setCamera(const float locPt[3], const float lookVec[3], const float upVec[3], float vfov);
/// Render the mesh as deformed by the expression signals.
/// @param[in] exprs the expression signals (53 of them).
/// @param[in] qrot the rotation of the model as an xyzw quaternion.
/// @param[in] trans the translation of the model as an xyz vector.
/// @param[out] result the resultant rendered image.
/// @note: This will appear upside-down.
NvCV_Status render(const float exprs[53], const float qrot[4], const float trans[3], NvCVImage *result);
protected:
MeshRenderer() {} ///< Never create a member of this class
~MeshRenderer() {} ///< Instantiations are always subclasses
Dispatch m_dispatch;
};
class MeshRendererBroker {
public:
/// Constructor.
MeshRendererBroker();
/// Destructor.
~MeshRendererBroker();
/// Set the directory to be searched for additional renderers.
/// @param[in] dir the directory to be searched for additional renderers.
/// @return +NVCV_SUCCESS if the operation was successful.
NvCV_Status setRendererDirectory(const char *dir);
/// Return a list of the available mesh renderers.
/// @param[out] list pointer to a place to store the list of available renderers, separated by newlines.
/// @return NVCV_SUCCESS if a list was successfully returned.
NvCV_Status getMeshRendererList(std::vector<std::string>& list);
/// Retrieve the information about the selected renderer.
/// @param[in] renderer the selected renderer.
/// @param[out] info a place to store a pointer to the information about the selected renderer.
/// @return NVCV_SUCCESS if the information was successfully retrieved;
/// NVCV_ERR_FEATURENOTFOUND if the specified renderer was not found.
/// @note This string is ephemeral. If persistency is desired, a copy must be made. The previous pointer is
/// invalidated when this is called repeatedly
NvCV_Status info(const char *renderer, const char **info);
/// Create an instance of the chosen mesh renderer.
/// @param[in] renderer the desired renderer. NULL chooses the default renderer.
/// @param[out] han a place to store a handle to the desired mesh renderer.
/// @return NVCV_SUCCESS if the specified mesh renderer was successfully instantiated.
/// NVCV_ERR_FEATURENOTFOUND if the specified renderer was not found.
NvCV_Status create(const char *renderer, MeshRenderer **han);
/// Add a new renderer to the broker's portfolio.
/// @param disp the renderer's dispatch table.
void addRenderer(MeshRenderer::Dispatch *disp);
private:
class Impl;
Impl *m_impl;
};
#endif // __MESH_RENDERER__

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ExpressionApp is a sample application using the AR SDK to extract face expression signals from video. These signals are
used to control the expressions, pose and gaze of a 3D morphable face model. The application can either process
real-time video from a webcam or offline videos from files. It illustrates the facial keypoints that are tracked, plots
the expression signals that are derived, and renders an animated 3D avatar mesh.
The application runs either the Face3DReconstruction, or FaceExpression feature, depending on which expression mode is
used. The expression mode is toggled using the '1' and '2' keys on the keyboard
1 - Face3DReconstruction expression estimation
2 - FaceExpression expression estimation (default, and recommended for avatar animation)
The FaceExpression mode is preferred for avatar animation. Note that Face3DReconstruction is demonstrated for its
ability to track the face over time for AR effects. This feature enables identity face shape estimation on top of
expression estimation and is better demonstrated in the FaceTrack sample application. The resulting expression weights
from FaceExpression is more accurate than from Face3DReconstruction.
For details on command line arguments, execute ExpressionApp.exe --help.
For more controls and configurations of the sample app, including expression definition and conversion to ARKit
blendshapes, please read the SDK programming guide. It also contains information about how to control the GUI which can
be enabled by running the application with the --show_ui argument.

274
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/*###############################################################################
#
# Copyright 2020 NVIDIA Corporation
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of
# this software and associated documentation files (the "Software"), to deal in
# the Software without restriction, including without limitation the rights to
# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
# the Software, and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
###############################################################################*/
#include <string>
#include "nvAR.h"
#ifdef _WIN32
#define _WINSOCKAPI_
#include <windows.h>
#include <tchar.h>
#else
#include <dlfcn.h>
typedef void* HMODULE;
typedef void* HANDLE;
typedef void* HINSTANCE;
#endif
// Parameter string does not include the file extension
#ifdef _WIN32
#define nvLoadLibrary(library) LoadLibrary(TEXT(library ".dll"))
#else
#define nvLoadLibrary(library) dlopen("lib" library ".so", RTLD_LAZY)
#endif
inline void* nvGetProcAddress(HINSTANCE handle, const char* proc) {
if (nullptr == handle) return nullptr;
#ifdef _WIN32
return GetProcAddress(handle, proc);
#else
return dlsym(handle, proc);
#endif
}
inline int nvFreeLibrary(HINSTANCE handle) {
#ifdef _WIN32
return FreeLibrary(handle);
#else
return dlclose(handle);
#endif
}
HINSTANCE getNvARLib() {
TCHAR path[MAX_PATH], fullPath[MAX_PATH];
bool bSDKPathSet = false;
extern char* g_nvARSDKPath;
if (g_nvARSDKPath && g_nvARSDKPath[0]) {
#ifndef UNICODE
strncpy_s(fullPath, MAX_PATH, g_nvARSDKPath, MAX_PATH);
#else
size_t res = 0;
mbstowcs_s(&res, fullPath, MAX_PATH, g_nvARSDKPath, MAX_PATH);
#endif
SetDllDirectory(fullPath);
bSDKPathSet = true;
}
if (!bSDKPathSet) {
// There can be multiple apps on the system,
// some might include the SDK in the app package and
// others might expect the SDK to be installed in Program Files
GetEnvironmentVariable(TEXT("NV_AR_SDK_PATH"), path, MAX_PATH);
if (_tcscmp(path, TEXT("USE_APP_PATH"))) {
// App has not set environment variable to "USE_APP_PATH"
// So pick up the SDK dll and dependencies from Program Files
GetEnvironmentVariable(TEXT("ProgramFiles"), path, MAX_PATH);
size_t max_len = sizeof(fullPath) / sizeof(TCHAR);
_stprintf_s(fullPath, max_len, TEXT("%s\\NVIDIA Corporation\\NVIDIA AR SDK\\"), path);
SetDllDirectory(fullPath);
}
}
static const HINSTANCE NvArLib = nvLoadLibrary("nvARPose");
return NvArLib;
}
NvCV_Status NvAR_API NvAR_GetVersion(unsigned int* version) {
static const auto funcPtr = (decltype(NvAR_GetVersion)*)nvGetProcAddress(getNvARLib(), "NvAR_GetVersion");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(version);
}
NvCV_Status NvAR_API NvAR_Create(NvAR_FeatureID featureID, NvAR_FeatureHandle* handle) {
static const auto funcPtr = (decltype(NvAR_Create)*)nvGetProcAddress(getNvARLib(), "NvAR_Create");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(featureID, handle);
}
NvCV_Status NvAR_API NvAR_Destroy(NvAR_FeatureHandle handle) {
static const auto funcPtr = (decltype(NvAR_Destroy)*)nvGetProcAddress(getNvARLib(), "NvAR_Destroy");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(handle);
}
NvCV_Status NvAR_API NvAR_SetU32(NvAR_FeatureHandle handle, const char* name, unsigned int val) {
static const auto funcPtr = (decltype(NvAR_SetU32)*)nvGetProcAddress(getNvARLib(), "NvAR_SetU32");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(handle, name, val);
}
NvCV_Status NvAR_API NvAR_SetS32(NvAR_FeatureHandle handle, const char* name, int val) {
static const auto funcPtr = (decltype(NvAR_SetS32)*)nvGetProcAddress(getNvARLib(), "NvAR_SetS32");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(handle, name, val);
}
NvCV_Status NvAR_API NvAR_SetF32(NvAR_FeatureHandle handle, const char* name, float val) {
static const auto funcPtr = (decltype(NvAR_SetF32)*)nvGetProcAddress(getNvARLib(), "NvAR_SetF32");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(handle, name, val);
}
NvCV_Status NvAR_API NvAR_SetF64(NvAR_FeatureHandle handle, const char* name, double val) {
static const auto funcPtr = (decltype(NvAR_SetF64)*)nvGetProcAddress(getNvARLib(), "NvAR_SetF64");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(handle, name, val);
}
NvCV_Status NvAR_API NvAR_SetU64(NvAR_FeatureHandle handle, const char* name, unsigned long long val) {
static const auto funcPtr = (decltype(NvAR_SetU64)*)nvGetProcAddress(getNvARLib(), "NvAR_SetU64");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(handle, name, val);
}
NvCV_Status NvAR_API NvAR_SetObject(NvAR_FeatureHandle handle, const char* name, void* ptr, unsigned long typeSize) {
static const auto funcPtr = (decltype(NvAR_SetObject)*)nvGetProcAddress(getNvARLib(), "NvAR_SetObject");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(handle, name, ptr, typeSize);
}
NvCV_Status NvAR_API NvAR_SetString(NvAR_FeatureHandle handle, const char* name, const char* str) {
static const auto funcPtr = (decltype(NvAR_SetString)*)nvGetProcAddress(getNvARLib(), "NvAR_SetString");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(handle, name, str);
}
NvCV_Status NvAR_API NvAR_SetCudaStream(NvAR_FeatureHandle handle, const char* name, CUstream stream) {
static const auto funcPtr = (decltype(NvAR_SetCudaStream)*)nvGetProcAddress(getNvARLib(), "NvAR_SetCudaStream");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(handle, name, stream);
}
NvCV_Status NvAR_API NvAR_SetF32Array(NvAR_FeatureHandle handle, const char* name, float* val, int count) {
static const auto funcPtr = (decltype(NvAR_SetF32Array)*)nvGetProcAddress(getNvARLib(), "NvAR_SetF32Array");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(handle, name, val, count);
}
NvCV_Status NvAR_API NvAR_GetU32(NvAR_FeatureHandle handle, const char* name, unsigned int* val) {
static const auto funcPtr = (decltype(NvAR_GetU32)*)nvGetProcAddress(getNvARLib(), "NvAR_GetU32");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(handle, name, val);
}
NvCV_Status NvAR_API NvAR_GetS32(NvAR_FeatureHandle handle, const char* name, int* val) {
static const auto funcPtr = (decltype(NvAR_GetS32)*)nvGetProcAddress(getNvARLib(), "NvAR_GetS32");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(handle, name, val);
}
NvCV_Status NvAR_API NvAR_GetF32(NvAR_FeatureHandle handle, const char* name, float* val) {
static const auto funcPtr = (decltype(NvAR_GetF32)*)nvGetProcAddress(getNvARLib(), "NvAR_GetF32");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(handle, name, val);
}
NvCV_Status NvAR_API NvAR_GetF64(NvAR_FeatureHandle handle, const char* name, double* val) {
static const auto funcPtr = (decltype(NvAR_GetF64)*)nvGetProcAddress(getNvARLib(), "NvAR_GetF64");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(handle, name, val);
}
NvCV_Status NvAR_API NvAR_GetU64(NvAR_FeatureHandle handle, const char* name, unsigned long long* val) {
static const auto funcPtr = (decltype(NvAR_GetU64)*)nvGetProcAddress(getNvARLib(), "NvAR_GetU64");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(handle, name, val);
}
NvCV_Status NvAR_API NvAR_GetObject(NvAR_FeatureHandle handle, const char* name, const void** ptr, unsigned long typeSize) {
static const auto funcPtr = (decltype(NvAR_GetObject)*)nvGetProcAddress(getNvARLib(), "NvAR_GetObject");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(handle, name, ptr, typeSize);
}
NvCV_Status NvAR_API NvAR_GetString(NvAR_FeatureHandle handle, const char* name, const char** str) {
static const auto funcPtr = (decltype(NvAR_GetString)*)nvGetProcAddress(getNvARLib(), "NvAR_GetString");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(handle, name, str);
}
NvCV_Status NvAR_API NvAR_GetCudaStream(NvAR_FeatureHandle handle, const char* name, const CUstream* stream) {
static const auto funcPtr = (decltype(NvAR_GetCudaStream)*)nvGetProcAddress(getNvARLib(), "NvAR_GetCudaStream");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(handle, name, stream);
}
NvCV_Status NvAR_API NvAR_GetF32Array(NvAR_FeatureHandle handle, const char* name, const float** vals, int* count) {
static const auto funcPtr = (decltype(NvAR_GetF32Array)*)nvGetProcAddress(getNvARLib(), "NvAR_GetF32Array");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(handle, name, vals, count);
}
NvCV_Status NvAR_API NvAR_Run(NvAR_FeatureHandle handle) {
static const auto funcPtr = (decltype(NvAR_Run)*)nvGetProcAddress(getNvARLib(), "NvAR_Run");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(handle);
}
NvCV_Status NvAR_API NvAR_Load(NvAR_FeatureHandle handle) {
static const auto funcPtr = (decltype(NvAR_Load)*)nvGetProcAddress(getNvARLib(), "NvAR_Load");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(handle);
}
NvCV_Status NvAR_API NvAR_CudaStreamCreate(CUstream* stream) {
static const auto funcPtr =
(decltype(NvAR_CudaStreamCreate)*)nvGetProcAddress(getNvARLib(), "NvAR_CudaStreamCreate");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(stream);
}
NvCV_Status NvAR_API NvAR_CudaStreamDestroy(CUstream stream) {
static const auto funcPtr =
(decltype(NvAR_CudaStreamDestroy)*)nvGetProcAddress(getNvARLib(), "NvAR_CudaStreamDestroy");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(stream);
}

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@@ -0,0 +1,341 @@
#if defined(linux) || defined(unix) || defined(__linux)
#warning nvCVImageProxy.cpp not ported
#else
/*###############################################################################
#
# Copyright 2020 NVIDIA Corporation
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of
# this software and associated documentation files (the "Software"), to deal in
# the Software without restriction, including without limitation the rights to
# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
# the Software, and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
###############################################################################*/
#include <string>
#include "nvCVImage.h"
#ifdef _WIN32
#define _WINSOCKAPI_
#include <windows.h>
#include <tchar.h>
#include "nvTransferD3D.h"
#include "nvTransferD3D11.h"
#else // !_WIN32
#include <dlfcn.h>
typedef void* HMODULE;
typedef void* HANDLE;
typedef void* HINSTANCE;
#endif // _WIN32
// Parameter string does not include the file extension
#ifdef _WIN32
#define nvLoadLibrary(library) LoadLibrary(TEXT(library ".dll"))
#else // !_WIN32
#define nvLoadLibrary(library) dlopen("lib" library ".so", RTLD_LAZY)
#endif // _WIN32
inline void* nvGetProcAddress(HINSTANCE handle, const char* proc) {
if (nullptr == handle) return nullptr;
#ifdef _WIN32
return GetProcAddress(handle, proc);
#else // !_WIN32
return dlsym(handle, proc);
#endif // _WIN32
}
inline int nvFreeLibrary(HINSTANCE handle) {
#ifdef _WIN32
return FreeLibrary(handle);
#else
return dlclose(handle);
#endif
}
HINSTANCE getNvCVImageLib() {
TCHAR path[MAX_PATH], tmpPath[MAX_PATH], fullPath[MAX_PATH];
static HINSTANCE nvCVImageLib = NULL;
static bool bSDKPathSet = false;
if (!bSDKPathSet) {
nvCVImageLib = nvLoadLibrary("NVCVImage");
if (nvCVImageLib) bSDKPathSet = true;
}
if (!bSDKPathSet) {
// There can be multiple apps on the system,
// some might include the SDK in the app package and
// others might expect the SDK to be installed in Program Files
GetEnvironmentVariable(TEXT("NV_VIDEO_EFFECTS_PATH"), path, MAX_PATH);
GetEnvironmentVariable(TEXT("NV_AR_SDK_PATH"), tmpPath, MAX_PATH);
if (_tcscmp(path, TEXT("USE_APP_PATH")) && _tcscmp(tmpPath, TEXT("USE_APP_PATH"))) {
// App has not set environment variable to "USE_APP_PATH"
// So pick up the SDK dll and dependencies from Program Files
GetEnvironmentVariable(TEXT("ProgramFiles"), path, MAX_PATH);
size_t max_len = sizeof(fullPath) / sizeof(TCHAR);
_stprintf_s(fullPath, max_len, TEXT("%s\\NVIDIA Corporation\\NVIDIA Video Effects\\"), path);
SetDllDirectory(fullPath);
nvCVImageLib = nvLoadLibrary("NVCVImage");
if (!nvCVImageLib) {
_stprintf_s(fullPath, max_len, TEXT("%s\\NVIDIA Corporation\\NVIDIA AR SDK\\"), path);
SetDllDirectory(fullPath);
nvCVImageLib = nvLoadLibrary("NVCVImage");
}
}
bSDKPathSet = true;
}
return nvCVImageLib;
}
NvCV_Status NvCV_API NvCVImage_Init(NvCVImage* im, unsigned width, unsigned height, int pitch, void* pixels,
NvCVImage_PixelFormat format, NvCVImage_ComponentType type, unsigned isPlanar,
unsigned onGPU) {
static const auto funcPtr = (decltype(NvCVImage_Init)*)nvGetProcAddress(getNvCVImageLib(), "NvCVImage_Init");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(im, width, height, pitch, pixels, format, type, isPlanar, onGPU);
}
void NvCV_API NvCVImage_InitView(NvCVImage* subImg, NvCVImage* fullImg, int x, int y, unsigned width,
unsigned height) {
static const auto funcPtr = (decltype(NvCVImage_InitView)*)nvGetProcAddress(getNvCVImageLib(), "NvCVImage_InitView");
if (nullptr != funcPtr) funcPtr(subImg, fullImg, x, y, width, height);
}
NvCV_Status NvCV_API NvCVImage_Alloc(NvCVImage* im, unsigned width, unsigned height, NvCVImage_PixelFormat format,
NvCVImage_ComponentType type, unsigned isPlanar, unsigned onGPU, unsigned alignment) {
static const auto funcPtr = (decltype(NvCVImage_Alloc)*)nvGetProcAddress(getNvCVImageLib(), "NvCVImage_Alloc");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(im, width, height, format, type, isPlanar, onGPU, alignment);
}
NvCV_Status NvCV_API NvCVImage_Realloc(NvCVImage* im, unsigned width, unsigned height,
NvCVImage_PixelFormat format, NvCVImage_ComponentType type,
unsigned isPlanar, unsigned onGPU, unsigned alignment) {
static const auto funcPtr = (decltype(NvCVImage_Realloc)*)nvGetProcAddress(getNvCVImageLib(), "NvCVImage_Realloc");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(im, width, height, format, type, isPlanar, onGPU, alignment);
}
void NvCV_API NvCVImage_Dealloc(NvCVImage* im) {
static const auto funcPtr = (decltype(NvCVImage_Dealloc)*)nvGetProcAddress(getNvCVImageLib(), "NvCVImage_Dealloc");
if (nullptr != funcPtr) funcPtr(im);
}
void NvCV_API NvCVImage_DeallocAsync(NvCVImage* im, CUstream_st* stream) {
static const auto funcPtr = (decltype(NvCVImage_DeallocAsync)*)nvGetProcAddress(getNvCVImageLib(), "NvCVImage_DeallocAsync");
if (nullptr != funcPtr) funcPtr(im, stream);
}
NvCV_Status NvCV_API NvCVImage_Create(unsigned width, unsigned height, NvCVImage_PixelFormat format,
NvCVImage_ComponentType type, unsigned isPlanar, unsigned onGPU,
unsigned alignment, NvCVImage** out) {
static const auto funcPtr = (decltype(NvCVImage_Create)*)nvGetProcAddress(getNvCVImageLib(), "NvCVImage_Create");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(width, height, format, type, isPlanar, onGPU, alignment, out);
}
void NvCV_API NvCVImage_Destroy(NvCVImage* im) {
static const auto funcPtr = (decltype(NvCVImage_Destroy)*)nvGetProcAddress(getNvCVImageLib(), "NvCVImage_Destroy");
if (nullptr != funcPtr) funcPtr(im);
}
void NvCV_API NvCVImage_ComponentOffsets(NvCVImage_PixelFormat format, int* rOff, int* gOff, int* bOff, int* aOff,
int* yOff) {
static const auto funcPtr =
(decltype(NvCVImage_ComponentOffsets)*)nvGetProcAddress(getNvCVImageLib(), "NvCVImage_ComponentOffsets");
if (nullptr != funcPtr) funcPtr(format, rOff, gOff, bOff, aOff, yOff);
}
NvCV_Status NvCV_API NvCVImage_Transfer(const NvCVImage* src, NvCVImage* dst, float scale, CUstream_st* stream,
NvCVImage* tmp) {
static const auto funcPtr = (decltype(NvCVImage_Transfer)*)nvGetProcAddress(getNvCVImageLib(), "NvCVImage_Transfer");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(src, dst, scale, stream, tmp);
}
NvCV_Status NvCV_API NvCVImage_TransferRect(const NvCVImage *src, const NvCVRect2i *srcRect, NvCVImage *dst,
const NvCVPoint2i *dstPt, float scale, struct CUstream_st *stream, NvCVImage *tmp) {
static const auto funcPtr = (decltype(NvCVImage_TransferRect)*)nvGetProcAddress(getNvCVImageLib(), "NvCVImage_TransferRect");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(src, srcRect, dst, dstPt, scale, stream, tmp);
}
NvCV_Status NvCV_API NvCVImage_TransferFromYUV(const void *y, int yPixBytes, int yPitch, const void *u, const void *v,
int uvPixBytes, int uvPitch, NvCVImage_PixelFormat yuvFormat, NvCVImage_ComponentType yuvType, unsigned yuvColorSpace,
unsigned yuvMemSpace, NvCVImage *dst, const NvCVRect2i *dstRect, float scale, struct CUstream_st *stream, NvCVImage *tmp) {
static const auto funcPtr = (decltype(NvCVImage_TransferFromYUV)*)nvGetProcAddress(getNvCVImageLib(), "NvCVImage_TransferFromYUV");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(y, yPixBytes, yPitch, u, v, uvPixBytes, uvPitch, yuvFormat, yuvType, yuvColorSpace, yuvMemSpace, dst,
dstRect, scale, stream, tmp);
}
NvCV_Status NvCV_API NvCVImage_TransferToYUV(const NvCVImage *src, const NvCVRect2i *srcRect,
const void *y, int yPixBytes, int yPitch, const void *u, const void *v, int uvPixBytes, int uvPitch,
NvCVImage_PixelFormat yuvFormat, NvCVImage_ComponentType yuvType, unsigned yuvColorSpace, unsigned yuvMemSpace,
float scale, struct CUstream_st *stream, NvCVImage *tmp) {
static const auto funcPtr = (decltype(NvCVImage_TransferToYUV)*)nvGetProcAddress(getNvCVImageLib(), "NvCVImage_TransferToYUV");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(src, srcRect, y, yPixBytes, yPitch, u, v, uvPixBytes, uvPitch, yuvFormat, yuvType, yuvColorSpace, yuvMemSpace, scale, stream, tmp);
}
NvCV_Status NvCV_API NvCVImage_MapResource(NvCVImage *im, struct CUstream_st *stream) {
static const auto funcPtr = (decltype(NvCVImage_MapResource)*)nvGetProcAddress(getNvCVImageLib(), "NvCVImage_MapResource");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(im, stream);
}
NvCV_Status NvCV_API NvCVImage_UnmapResource(NvCVImage *im, struct CUstream_st *stream) {
static const auto funcPtr = (decltype(NvCVImage_UnmapResource)*)nvGetProcAddress(getNvCVImageLib(), "NvCVImage_UnmapResource");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(im, stream);
}
#if RTX_CAMERA_IMAGE == 0
NvCV_Status NvCV_API NvCVImage_Composite(const NvCVImage* fg, const NvCVImage* bg, const NvCVImage* mat, NvCVImage* dst,
struct CUstream_st *stream) {
static const auto funcPtr = (decltype(NvCVImage_Composite)*)nvGetProcAddress(getNvCVImageLib(), "NvCVImage_Composite");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(fg, bg, mat, dst, stream);
}
#else // RTX_CAMERA_IMAGE == 1
NvCV_Status NvCV_API NvCVImage_Composite(const NvCVImage* fg, const NvCVImage* bg, const NvCVImage* mat, NvCVImage* dst) {
static const auto funcPtr = (decltype(NvCVImage_Composite)*)nvGetProcAddress(getNvCVImageLib(), "NvCVImage_Composite");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(fg, bg, mat, dst);
}
#endif // RTX_CAMERA_IMAGE
NvCV_Status NvCV_API NvCVImage_CompositeRect(
const NvCVImage *fg, const NvCVPoint2i *fgOrg,
const NvCVImage *bg, const NvCVPoint2i *bgOrg,
const NvCVImage *mat, unsigned mode,
NvCVImage *dst, const NvCVPoint2i *dstOrg,
struct CUstream_st *stream) {
static const auto funcPtr = (decltype(NvCVImage_CompositeRect)*)nvGetProcAddress(getNvCVImageLib(), "NvCVImage_CompositeRect");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(fg, fgOrg, bg, bgOrg, mat, mode, dst, dstOrg, stream);
}
#if RTX_CAMERA_IMAGE == 0
NvCV_Status NvCV_API NvCVImage_CompositeOverConstant(const NvCVImage *src, const NvCVImage *mat,
const void *bgColor, NvCVImage *dst, struct CUstream_st *stream) {
static const auto funcPtr =
(decltype(NvCVImage_CompositeOverConstant)*)nvGetProcAddress(getNvCVImageLib(), "NvCVImage_CompositeOverConstant");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(src, mat, bgColor, dst, stream);
}
#else // RTX_CAMERA_IMAGE == 1
NvCV_Status NvCV_API NvCVImage_CompositeOverConstant(const NvCVImage *src, const NvCVImage *mat,
const unsigned char bgColor[3], NvCVImage *dst) {
static const auto funcPtr =
(decltype(NvCVImage_CompositeOverConstant)*)nvGetProcAddress(getNvCVImageLib(), "NvCVImage_CompositeOverConstant");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(src, mat, bgColor, dst);
}
#endif // RTX_CAMERA_IMAGE
NvCV_Status NvCV_API NvCVImage_FlipY(const NvCVImage *src, NvCVImage *dst) {
static const auto funcPtr = (decltype(NvCVImage_FlipY)*)nvGetProcAddress(getNvCVImageLib(), "NvCVImage_FlipY");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(src, dst);
}
NvCV_Status NvCV_API NvCVImage_Sharpen(float sharpness, const NvCVImage *src, NvCVImage *dst,
struct CUstream_st *stream, NvCVImage *tmp) {
static const auto funcPtr = (decltype(NvCVImage_Sharpen)*)nvGetProcAddress(getNvCVImageLib(), "NvCVImage_Sharpen");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(sharpness, src, dst, stream, tmp);
}
#ifdef _WIN32
__declspec(dllexport) const char* __cdecl
#else
const char*
#endif // _WIN32 or linux
NvCV_GetErrorStringFromCode(NvCV_Status code) {
static const auto funcPtr =
(decltype(NvCV_GetErrorStringFromCode)*)nvGetProcAddress(getNvCVImageLib(), "NvCV_GetErrorStringFromCode");
if (nullptr == funcPtr) return "Cannot find nvCVImage DLL or its dependencies";
return funcPtr(code);
}
#ifdef _WIN32 // Direct 3D
NvCV_Status NvCV_API NvCVImage_InitFromD3D11Texture(NvCVImage *im, struct ID3D11Texture2D *tx) {
static const auto funcPtr = (decltype(NvCVImage_InitFromD3D11Texture)*)nvGetProcAddress(getNvCVImageLib(), "NvCVImage_InitFromD3D11Texture");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(im, tx);
}
NvCV_Status NvCV_API NvCVImage_ToD3DFormat(NvCVImage_PixelFormat format, NvCVImage_ComponentType type, unsigned layout, DXGI_FORMAT *d3dFormat) {
static const auto funcPtr = (decltype(NvCVImage_ToD3DFormat)*)nvGetProcAddress(getNvCVImageLib(), "NvCVImage_ToD3DFormat");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(format, type, layout, d3dFormat);
}
NvCV_Status NvCV_API NvCVImage_FromD3DFormat(DXGI_FORMAT d3dFormat, NvCVImage_PixelFormat *format, NvCVImage_ComponentType *type, unsigned char *layout) {
static const auto funcPtr = (decltype(NvCVImage_FromD3DFormat)*)nvGetProcAddress(getNvCVImageLib(), "NvCVImage_FromD3DFormat");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(d3dFormat, format, type, layout);
}
#ifdef __dxgicommon_h__
NvCV_Status NvCV_API NvCVImage_ToD3DColorSpace(unsigned char nvcvColorSpace, DXGI_COLOR_SPACE_TYPE *pD3dColorSpace) {
static const auto funcPtr = (decltype(NvCVImage_ToD3DColorSpace)*)nvGetProcAddress(getNvCVImageLib(), "NvCVImage_ToD3DColorSpace");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(nvcvColorSpace, pD3dColorSpace);
}
NvCV_Status NvCV_API NvCVImage_FromD3DColorSpace(DXGI_COLOR_SPACE_TYPE d3dColorSpace, unsigned char *pNvcvColorSpace) {
static const auto funcPtr = (decltype(NvCVImage_FromD3DColorSpace)*)nvGetProcAddress(getNvCVImageLib(), "NvCVImage_FromD3DColorSpace");
if (nullptr == funcPtr) return NVCV_ERR_LIBRARY;
return funcPtr(d3dColorSpace, pNvcvColorSpace);
}
#endif // __dxgicommon_h__
#endif // _WIN32 Direct 3D
#endif // enabling for this file

3
samples/ExpressionApp/run.bat Normal file
View File

@@ -0,0 +1,3 @@
SETLOCAL
SET PATH=%PATH%;..\..\samples\external\opencv\bin;..\..\bin;
ExpressionApp.exe

43
samples/FaceTrack/CMakeLists.txt
View File

@@ -7,11 +7,14 @@ set(SOURCE_FILES FaceEngine.cpp
set(HEADER_FILES FaceEngine.h)
set(SOURCE_FILES ${SOURCE_FILES} ../../nvar/src/nvARProxy.cpp ../../nvar/src/nvCVImageProxy.cpp)
if(MSVC)
set(SOURCE_FILES ${SOURCE_FILES} ../../nvar/src/nvARProxy.cpp ../../nvar/src/nvCVImageProxy.cpp)
# Set Visual Studio source filters
source_group("Source Files" FILES ${SOURCE_FILES})
source_group("Header Files" FILES ${HEADER_FILES})
endif(MSVC)
# Set Visual Studio source filters
source_group("Source Files" FILES ${SOURCE_FILES})
source_group("Header Files" FILES ${HEADER_FILES})
add_executable(FaceTrack ${SOURCE_FILES} ${HEADER_FILES})
target_include_directories(FaceTrack PRIVATE ${CMAKE_CURRENT_SOURCE_DIR})
@@ -19,13 +22,25 @@ target_include_directories(FaceTrack PUBLIC
${SDK_INCLUDES_PATH}
)
target_link_libraries(FaceTrack PUBLIC
opencv346
utils_sample
)
set(OPENCV_PATH_STR ${CMAKE_CURRENT_SOURCE_DIR}/../external/opencv/bin)
set(PATH_STR "PATH=%PATH%" ${OPENCV_PATH_STR})
set_target_properties(FaceTrack PROPERTIES
FOLDER SampleApps
VS_DEBUGGER_ENVIRONMENT "${PATH_STR}"
VS_DEBUGGER_COMMAND_ARGUMENTS "${CMD_ARG_STR}" )
if(MSVC)
target_link_libraries(FaceTrack PUBLIC
opencv346
utils_sample
)
set(OPENCV_PATH_STR ${CMAKE_CURRENT_SOURCE_DIR}/../external/opencv/bin)
set(PATH_STR "PATH=%PATH%" ${OPENCV_PATH_STR})
set_target_properties(FaceTrack PROPERTIES
FOLDER SampleApps
VS_DEBUGGER_ENVIRONMENT "${PATH_STR}"
VS_DEBUGGER_COMMAND_ARGUMENTS "${CMD_ARG_STR}" )
elseif(UNIX)
find_package(PNG REQUIRED)
find_package(JPEG REQUIRED)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pthread")
target_link_libraries(FaceTrack PUBLIC
nvARPose
NVCVImage
OpenCV
utils_sample
)
endif()

101
samples/FaceTrack/FaceEngine.cpp
View File

@@ -71,7 +71,7 @@ int FaceEngine::getNumExpressionCoefficients() {
}
FaceEngine::Err FaceEngine::createFeatures(const char* modelPath, unsigned int _batchSize) {
FaceEngine::Err FaceEngine::createFeatures(const char* modelPath, unsigned int _batchSize, unsigned int mode) {
FaceEngine::Err err = FaceEngine::Err::errNone;
NvCV_Status cuErr = NvAR_CudaStreamCreate(&stream);
@@ -85,7 +85,7 @@ FaceEngine::Err FaceEngine::createFeatures(const char* modelPath, unsigned int _
printf("ERROR: An error has occurred while initializing Face Detection\n");
}
} else if (appMode == landmarkDetection) {
err = createLandmarkDetectionFeature(modelPath, _batchSize, stream);
err = createLandmarkDetectionFeature(modelPath, _batchSize, stream, mode);
if (err != Err::errNone) {
printf("ERROR: An error has occurred while initializing Landmark Detection\n");
}
@@ -117,7 +117,7 @@ FaceEngine::Err FaceEngine::createFaceDetectionFeature(const char* modelPath, CU
nvErr = NvAR_SetCudaStream(faceDetectHandle, NvAR_Parameter_Config(CUDAStream), str);
BAIL_IF_NVERR(nvErr, err, FaceEngine::Err::errParameter);
nvErr = NvAR_SetU32(faceDetectHandle, NvAR_Parameter_Config(Temporal), bStabilizeFace);
nvErr = NvAR_SetU32(faceDetectHandle, NvAR_Parameter_Config(Temporal), (bStabilizeFace ? -1 : 0));
BAIL_IF_NVERR(nvErr, err, FaceEngine::Err::errParameter);
nvErr = NvAR_Load(faceDetectHandle);
@@ -128,7 +128,7 @@ bail:
}
FaceEngine::Err FaceEngine::createLandmarkDetectionFeature(const char* modelPath, unsigned int _batchSize,
CUstream str) {
CUstream str, unsigned int mode) {
FaceEngine::Err err = FaceEngine::Err::errNone;
NvCV_Status nvErr;
@@ -151,7 +151,7 @@ FaceEngine::Err FaceEngine::createLandmarkDetectionFeature(const char* modelPath
nvErr = NvAR_SetU32(landmarkDetectHandle, NvAR_Parameter_Config(BatchSize), batchSize);
BAIL_IF_NVERR(nvErr, err, FaceEngine::Err::errParameter);
nvErr = NvAR_SetU32(landmarkDetectHandle, NvAR_Parameter_Config(Temporal), bStabilizeFace);
nvErr = NvAR_SetU32(landmarkDetectHandle, NvAR_Parameter_Config(Temporal), (bStabilizeFace ? -1 : 0));
BAIL_IF_NVERR(nvErr, err, FaceEngine::Err::errParameter);
nvErr = NvAR_SetU32(landmarkDetectHandle, NvAR_Parameter_Config(Landmarks_Size), numLandmarks);
@@ -160,6 +160,9 @@ FaceEngine::Err FaceEngine::createLandmarkDetectionFeature(const char* modelPath
nvErr = NvAR_SetU32(landmarkDetectHandle, NvAR_Parameter_Config(LandmarksConfidence_Size), numLandmarks);
BAIL_IF_NVERR(nvErr, err, FaceEngine::Err::errParameter);
nvErr = NvAR_SetU32(landmarkDetectHandle, NvAR_Parameter_Config(Mode), mode);
BAIL_IF_NVERR(nvErr, err, FaceEngine::Err::errParameter);
nvErr = NvAR_Load(landmarkDetectHandle);
BAIL_IF_NVERR(nvErr, err, FaceEngine::Err::errInitialization);
@@ -297,8 +300,20 @@ FaceEngine::Err FaceEngine::initFaceFittingIOParams(NvCVImage* inBuf) {
FaceEngine::Err err = FaceEngine::Err::errNone;
face_mesh = new NvAR_FaceMesh();
face_mesh->vertices = nullptr; //new NvAR_Vector3f[FACE_MODEL_NUM_VERTICES];
face_mesh->tvi = nullptr; // new NvAR_Vector3u16[FACE_MODEL_NUM_INDICES];
unsigned int num_vertices, num_triangles;
nvErr = NvAR_GetU32(faceFitHandle, NvAR_Parameter_Config(VertexCount), &num_vertices);
BAIL_IF_NVERR(nvErr, err, FaceEngine::Err::errParameter);
nvErr = NvAR_GetU32(faceFitHandle, NvAR_Parameter_Config(TriangleCount), &num_triangles);
BAIL_IF_NVERR(nvErr, err, FaceEngine::Err::errParameter);
face_mesh->num_vertices = num_vertices;
face_mesh->num_triangles = num_triangles;
m_vertices.assign(num_vertices, {0.f, 0.f, 0.f});
m_triangles.assign(num_triangles, { 0, 0, 0 });
face_mesh->vertices = m_vertices.data();
face_mesh->tvi = m_triangles.data();
rendering_params = new NvAR_RenderingParams();
nvErr = NvAR_SetObject(faceFitHandle, NvAR_Parameter_Input(Image), inBuf, sizeof(NvCVImage));
@@ -419,14 +434,6 @@ void FaceEngine::releaseFaceFittingIOParams() {
rendering_params = nullptr;
}
if (face_mesh) {
if (face_mesh->vertices) {
delete[] face_mesh->vertices;
face_mesh->vertices = nullptr;
}
if (face_mesh->tvi) {
delete[] face_mesh->tvi;
face_mesh->tvi = nullptr;
}
delete face_mesh;
face_mesh = nullptr;
}
@@ -557,34 +564,27 @@ static bool IntersectRectWithImage(const cv::Rect& srcRect, const cv::Mat& src,
}
#endif // UNUSED
void FaceEngine::DrawPose(const cv::Mat& src, const NvAR_Quaternion* pose) {
float R[3][3];
set_rotation_from_quaternion(pose, R[0]);
float radius = 100.f;
float x1 = radius * R[1][0];
float y1 = radius * R[2][0];
float x2 = radius * R[1][1];
float y2 = radius * R[2][1];
float x3 = radius * R[1][2] * -1.f;
float y3 = radius * R[2][2] * -1.f;
void FaceEngine::DrawPose(const cv::Mat& src, const NvAR_Quaternion* pose) const {
const float vector_scale = 50.0f;
const int thickness = 2;
float rot_mat[3][3];
set_rotation_from_quaternion(pose, rot_mat[0]);
const auto avg_landmark_pos = GetAverageLandmarkPositionInGlSpace();
int nose_tip = 0;
const char* kNoseTipName = "nose-tip";
nose_tip = FindLandmarkIndexFromName(numLandmarks, kNoseTipName);
cv::Point p0 = {static_cast<int>(avg_landmark_pos[0]), static_cast<int>(avg_landmark_pos[1])};
cv::Point px = p0 + cv::Point(std::lround(rot_mat[0][0] * vector_scale), std::lround(rot_mat[0][1] * vector_scale));
cv::Point py = p0 + cv::Point(std::lround(rot_mat[1][0] * vector_scale), std::lround(rot_mat[1][1] * vector_scale));
cv::Point pz = p0 + cv::Point(std::lround(rot_mat[2][0] * vector_scale), std::lround(rot_mat[2][1] * vector_scale));
int width = src.cols;
int height = src.rows;
NvAR_Point2f cxy = *(facial_landmarks.data() + nose_tip);
float cx1 = (float)std::min(std::max(0, int(cxy.x + x1)), width - 1);
float cy1 = (float)std::min(std::max(0, int(cxy.y + y1)), height - 1);
float cx2 = (float)std::min(std::max(0, int(cxy.x + x2)), width - 1);
float cy2 = (float)std::min(std::max(0, int(cxy.y + y2)), height - 1);
float cx3 = (float)std::min(std::max(0, int(cxy.x + x3)), width - 1);
float cy3 = (float)std::min(std::max(0, int(cxy.y + y3)), height - 1);
// Convert from OpenGL to OpenCV space
p0.y = src.rows - 1 - p0.y;
px.y = src.rows - 1 - px.y;
py.y = src.rows - 1 - py.y;
pz.y = src.rows - 1 - pz.y;
cv::line(src, cv::Point((int)cxy.x, (int)cxy.y), cv::Point((int)cx1, (int)cy1), cv::Scalar(0, 0, 255), 2);
cv::line(src, cv::Point((int)cxy.x, (int)cxy.y), cv::Point((int)cx2, (int)cy2), cv::Scalar(0, 255, 0), 2);
cv::line(src, cv::Point((int)cxy.x, (int)cxy.y), cv::Point((int)cx3, (int)cy3), cv::Scalar(255, 0, 0), 2);
cv::line(src, p0, px, CV_RGB(255, 0, 0), thickness);
cv::line(src, p0, py, CV_RGB(0, 255, 0), thickness);
cv::line(src, p0, pz, CV_RGB(0, 0, 255), thickness);
}
NvCV_Status FaceEngine::findLandmarks() {
@@ -618,6 +618,18 @@ NvAR_Point2f* FaceEngine::getLandmarks() { return facial_landmarks.data(); }
float* FaceEngine::getLandmarksConfidence() { return facial_landmarks_confidence.data(); }
std::array<float, 2> FaceEngine::GetAverageLandmarkPositionInGlSpace() const {
std::array<float, 2> res = { 0.0f, 0.0f };
for (const auto& landmark : facial_landmarks) {
res[0] += landmark.x;
res[1] += landmark.y;
}
res[0] /= facial_landmarks.size();
res[1] /= facial_landmarks.size();
res[1] = input_image_height - res[1]; //Convert y coordinate from CV to GL space
return res;
}
float FaceEngine::getAverageLandmarksConfidence() {
float average_confidence = 0.0f;
float* keypoints_landmarks_confidence = getLandmarksConfidence();
@@ -686,13 +698,18 @@ void FaceEngine::setFaceStabilization(bool _bStabilizeFace) { bStabilizeFace = _
FaceEngine::Err FaceEngine::setNumLandmarks(int n) {
FaceEngine::Err err = errNone;
for (auto const& info : LANDMARKS_INFO) {
#ifdef _WIN32 // Keep Updated Thresholds for Windows Only
for (auto const& info : LANDMARKS_INFO)
#else
for (auto const& info : LANDMARKS_INFO_UNIX)
#endif
{
if (n == info.numPoints) {
numLandmarks = info.numPoints;
confidenceThreshold = info.confidence_threshold;
return err;
}
}
}
err = errGeneral;
return err;
}

19
samples/FaceTrack/FaceEngine.h
View File

@@ -110,8 +110,14 @@ class FaceEngine {
enum Err { errNone, errGeneral, errRun, errInitialization, errRead, errEffect, errParameter };
int input_image_width, input_image_height, input_image_pitch;
const LandmarksProperties LANDMARKS_INFO[2] = {
{ 68, 15.0f }, // number of landmark points, confidence threshold value
{ 126, 15.0f}, //
};
// Keep Older Confidence Threshold for Linux Models.
const LandmarksProperties LANDMARKS_INFO_UNIX[2] = {
{ 68, 10.0f }, // number of landmark points, confidence threshold value
{ 126, 5.0f}
{ 126, 5.0f}, //
};
void setInputImageWidth(int width) { input_image_width = width; }
@@ -121,9 +127,9 @@ class FaceEngine {
int getInputImagePitch() { return input_image_pitch = input_image_width * 3 * sizeof(unsigned char); }
void setFaceModel(const char *faceModel) { face_model = faceModel; }
Err createFeatures(const char* modelPath, unsigned int _batchSize = 1);
Err createFeatures(const char* modelPath, unsigned int _batchSize = 1, unsigned int mode = 0);
Err createFaceDetectionFeature(const char* modelPath, CUstream stream);
Err createLandmarkDetectionFeature(const char* modelPath, unsigned int batchSize, CUstream stream);
Err createLandmarkDetectionFeature(const char* modelPath, unsigned int batchSize, CUstream stream, unsigned int mode = 0);
Err createFaceFittingFeature(const char* modelPath, CUstream stream);
void destroyFeatures();
void destroyFaceDetectionFeature();
@@ -161,7 +167,8 @@ class FaceEngine {
int getNumExpressionCoefficients();
Err setNumLandmarks(int);
int getNumLandmarks() { return numLandmarks; }
void DrawPose(const cv::Mat& src, const NvAR_Quaternion* pose);
void DrawPose(const cv::Mat& src, const NvAR_Quaternion* pose) const;
std::array<float, 2> GetAverageLandmarkPositionInGlSpace() const;
NvCVImage inputImageBuffer{}, tmpImage{}, outputImageBuffer{};
NvAR_FeatureHandle faceDetectHandle{}, landmarkDetectHandle{}, faceFitHandle{};
@@ -169,6 +176,8 @@ class FaceEngine {
std::vector<float> facial_landmarks_confidence;
std::vector<NvAR_Quaternion> facial_pose;
NvAR_FaceMesh* face_mesh{};
std::vector<NvAR_Vector3f> m_vertices;
std::vector<NvAR_Vector3u16> m_triangles;
NvAR_RenderingParams* rendering_params{};
std::vector<float> shapeEigenvalues, expressionCoefficients;
CUstream stream{};
@@ -180,7 +189,7 @@ class FaceEngine {
int numLandmarks;
float confidenceThreshold;
std::string face_model;
bool bStabilizeFace;
bool bUseOTAU;
char *fdOTAModelPath, *ldOTAModelPath;

47
samples/FaceTrack/FaceTrack.cpp
View File

@@ -38,6 +38,13 @@
#include "nvAR_defs.h"
#include "opencv2/opencv.hpp"
#if CV_MAJOR_VERSION >= 4
#define CV_CAP_PROP_FRAME_WIDTH cv::CAP_PROP_FRAME_WIDTH
#define CV_CAP_PROP_FRAME_HEIGHT cv::CAP_PROP_FRAME_HEIGHT
#define CV_CAP_PROP_FPS cv::CAP_PROP_FPS
#define CV_CAP_PROP_FRAME_COUNT cv::CAP_PROP_FRAME_COUNT
#endif
#ifndef M_PI
#define M_PI 3.1415926535897932385
#endif /* M_PI */
@@ -66,7 +73,7 @@
********************************************************************************/
bool FLAG_debug = false, FLAG_verbose = false, FLAG_temporal = true, FLAG_captureOutputs = false,
FLAG_offlineMode = false, FLAG_isNumLandmarks126 = false;
FLAG_offlineMode = false, FLAG_isNumLandmarks126 = false; unsigned int FLAG_landmarkMode = 0;
std::string FLAG_outDir, FLAG_inFile, FLAG_outFile, FLAG_modelPath, FLAG_landmarks, FLAG_proxyWireframe,
FLAG_captureCodec = "avc1", FLAG_camRes, FLAG_faceModel;
unsigned int FLAG_appMode = 2;
@@ -93,7 +100,8 @@ static void Usage() {
" --face_model=<file> specify the name of the face model\n"
" --wireframe_mesh=<path> specify the path to a proxy wireframe mesh\n"
" --app_mode[=(0|1|2)] App mode. 0: Face detection, 1: Landmark detection, 2: Face fitting "
"(Default)."
"(Default).\n"
" --landmark_mode Select Landmark Detection Model. 0: Performance (Default), 1: Quality\n"
" --benchmarks[=<pattern>] run benchmarks\n");
}
@@ -197,7 +205,8 @@ static int ParseMyArgs(int argc, char **argv) {
GetFlagArgVal("landmarks", arg, &FLAG_landmarks) || GetFlagArgVal("model_path", arg, &FLAG_modelPath) ||
GetFlagArgVal("wireframe_mesh", arg, &FLAG_proxyWireframe) ||
GetFlagArgVal("face_model", arg, &FLAG_faceModel) ||
GetFlagArgVal("app_mode", arg, &FLAG_appMode) || GetFlagArgVal("temporal", arg, &FLAG_temporal))) {
GetFlagArgVal("app_mode", arg, &FLAG_appMode) || GetFlagArgVal("temporal", arg, &FLAG_temporal) ||
GetFlagArgVal("landmark_mode", arg, &FLAG_landmarkMode))) {
continue;
} else if (GetFlagArgVal("help", arg, &help)) {
Usage();
@@ -227,10 +236,11 @@ enum {
#if 1
class MyTimer {
public:
void start() { t0 = std::chrono::high_resolution_clock::now(); } /**< Start the timer. */
void pause() { dt = std::chrono::high_resolution_clock::now() - t0; } /**< Pause the timer. */
void resume() { t0 = std::chrono::high_resolution_clock::now() - dt; } /**< Resume the timer. */
void stop() { pause(); } /**< Stop the timer. */
MyTimer() { dt = dt.zero(); } /**< Clear the duration to 0. */
void start() { t0 = std::chrono::high_resolution_clock::now(); } /**< Start the timer. */
void pause() { dt = std::chrono::high_resolution_clock::now() - t0; } /**< Pause the timer. */
void resume() { t0 = std::chrono::high_resolution_clock::now() - dt; } /**< Resume the timer. */
void stop() { pause(); } /**< Stop the timer. */
double elapsedTimeFloat() const {
return std::chrono::duration<double>(dt).count();
} /**< Report the elapsed time as a float. */
@@ -297,7 +307,7 @@ class DoApp {
~DoApp();
void stop();
Err initFaceEngine(const char *modelPath = nullptr, bool isLandmarks126 = false);
Err initFaceEngine(const char *modelPath = nullptr, bool isLandmarks126 = false, int mode = 0);
Err initCamera(const char *camRes = nullptr);
Err initOfflineMode(const char *inputFilename = nullptr, const char *outputFilename = nullptr);
Err acquireFrame();
@@ -327,6 +337,7 @@ class DoApp {
int frameIndex;
static const char windowTitle[];
double frameTime;
const int batchSize = 1;
// std::chrono::high_resolution_clock::time_point frameTimer;
MyTimer frameTimer;
cv::VideoWriter capturedVideo;
@@ -390,20 +401,21 @@ void DoApp::processKey(int key) {
}
}
DoApp::Err DoApp::initFaceEngine(const char *modelPath, bool isNumLandmarks126) {
DoApp::Err DoApp::initFaceEngine(const char *modelPath, bool isNumLandmarks126, int mode) {
if (!cap.isOpened()) return errVideo;
int numLandmarkPoints = isNumLandmarks126 ? 126 : 68;
face_ar_engine.setNumLandmarks(numLandmarkPoints);
nvErr = face_ar_engine.createFeatures(modelPath);
nvErr = face_ar_engine.createFeatures(modelPath, batchSize, mode);
if (nvErr != FaceEngine::Err::errNone) {
if (nvErr == FaceEngine::Err::errInitialization && face_ar_engine.appMode == FaceEngine::mode::faceMeshGeneration) {
showFaceFitErrorMessage();
printf("WARNING: face fitting has failed, trying to initialize Landmark Detection\n");
face_ar_engine.destroyFeatures();
face_ar_engine.setAppMode(FaceEngine::mode::landmarkDetection);
nvErr = face_ar_engine.createFeatures(modelPath);
nvErr = face_ar_engine.createFeatures(modelPath, batchSize, mode);
}
}
@@ -437,7 +449,7 @@ void DoApp::stop() {
void DoApp::showFaceFitErrorMessage() {
cv::Mat errBox = cv::Mat::zeros(120, 640, CV_8UC3);
cv::putText(errBox, cv::String("Warning: Face Fitting needs face_model0.nvf in the path --model_path"), cv::Point(20, 20),
cv::putText(errBox, cv::String("Warning: Face Fitting needs face_model2.nvf in the path --model_path"), cv::Point(20, 20),
cv::FONT_HERSHEY_SIMPLEX, 0.5, cv::Scalar(255, 255, 255), 1);
cv::putText(errBox, cv::String("or in NVAR_MODEL_DIR environment variable."), cv::Point(20, 40), cv::FONT_HERSHEY_SIMPLEX,
0.5, cv::Scalar(255, 255, 255), 1);
@@ -607,8 +619,8 @@ void DoApp::DrawFaceMesh(const cv::Mat &src, NvAR_FaceMesh *face_mesh) {
NvAR_FaceMesh wfMesh{nullptr, 0, nullptr, 0};
wfMesh.num_vertices = face_mesh->num_vertices;
wfMesh.vertices = face_mesh->vertices;
wfMesh.num_tri_idx = proxyWireframe.size();
wfMesh_tvi_data.resize(wfMesh.num_tri_idx);
wfMesh.num_triangles = proxyWireframe.size();
wfMesh_tvi_data.resize(wfMesh.num_triangles);
wfMesh.tvi = wfMesh_tvi_data.data();
for (int i = 0; i < proxyWireframe.size(); i++) {
@@ -1088,7 +1100,12 @@ int main(int argc, char **argv) {
}
BAIL_IF_ERR(doErr);
doErr = app.initFaceEngine(FLAG_modelPath.c_str(), FLAG_isNumLandmarks126);
if ((FLAG_landmarkMode < 0) | (FLAG_landmarkMode > 1)){
doErr = DoApp::errParameter;
printf("ERROR: %s, Please Select Either Mode 0 or 1! \n", app.errorStringFromCode(doErr));
}
doErr = app.initFaceEngine(FLAG_modelPath.c_str(), FLAG_isNumLandmarks126, FLAG_landmarkMode);
BAIL_IF_ERR(doErr);
if (!FLAG_proxyWireframe.empty()) app.setProxyWireframe(FLAG_proxyWireframe.c_str());

BIN
samples/FaceTrack/FaceTrack.exe
View File

Binary file not shown.

41
samples/FaceTrack/Readme.txt
View File

@@ -9,43 +9,4 @@ the keyboard
2 - Facial landmark tracking
3 - 3D mesh tracking
For more controls and configurations of the sample app, please read the SDK programming guide.
3D mesh tracking feature requires a 3D Morphable Face Model (3DMM).
NVIDIA AR SDK does not include a 3DMM. Therefore, if you are using the 3D mesh tracking feature, you must configure NVIDIA AR SDK with 3DMM.
Note: To configure NVIDIA AR SDK with 3DMM, you can use the Surrey Face Model, as described in the steps below, or your own model.
The sample app can still be used in mode 1 and 2 without this file.
NVIDIA AR SDK provides the ConvertSurreyFaceModel.exe utility to convert 3DMM files to the NVIDIA .nvf format that is required by the SDK.
To generate the face model file face_model0.nvf required for 3D mesh tracking:
1) Download the following Surrey Face Model files from the eos project page on Github:
sfm_shape_3448.bin
expression_blendshapes_3448.bin
sfm_3448_edge_topology.json
sfm_model_contours.json
ibug_to_sfm.txt
2) Convert the files that you downloaded to the NVIDIA .nvf format.
tools\ConvertSurreyFaceModel.exe
--shape=<path>/sfm_shape_3448.bin
--blend_shape=<path>/expression_blendshapes_3448.bin
--topology=<path>/sfm_3448_edge_topology.json
--contours=<path>/sfm_model_contours.json
--ibug=<path>/ibug_to_sfm.txt
--out=<output-path>/face_model0.nvf
path
The full or relative path to the folder that contains the Surrey Face Model files that you downloaded.
Either the forward slash (/) or back slash (\) can be used as a separator between path elements.
output-path
The full or relative path to the folder where you want the output .nvf format file to be written.
Either the forward slash (/) or back slash (\) can be used as a separator between path elements.
The ConvertSurreyFaceModel.exe file is distributed in the https://github.com/nvidia/MAXINE-AR-SDK repo.
3) The sample application provided with NVIDIA AR SDK requires that the model file be named face_model0.nvf.
Place the face_model0.nvf file in the model folder. By default the models folder is your_sdk_install_path/models
where all models (including *.trtpkg files) are installed, for example: C:\Program Files\NVIDIA Corporation\NVIDIA AR SDK\models.
For more controls and configurations of the sample app, please read the SDK programming guide.

51
samples/GazeRedirect/CMakeLists.txt Normal file
View File

@@ -0,0 +1,51 @@
set(SOURCE_FILES GazeEngine.cpp
GazeRedirect.cpp
../utils/RenderingUtils.cpp
../utils/FeatureVertexName.cpp
../utils/FeatureVertexName.h
)
set(HEADER_FILES GazeEngine.h )
if(MSVC)
set(SOURCE_FILES ${SOURCE_FILES} ../../nvar/src/nvARProxy.cpp ../../nvar/src/nvCVImageProxy.cpp)
set(HEADER_FILES ${HEADER_FILES} ../utils/RenderingUtils.h)
endif(MSVC)
# Set Visual Studio source filters
source_group("Source Files" FILES ${SOURCE_FILES})
source_group("Header Files" FILES ${HEADER_FILES})
add_executable(GazeRedirect ${SOURCE_FILES} ${HEADER_FILES})
target_include_directories(GazeRedirect PRIVATE ${CMAKE_CURRENT_SOURCE_DIR})
target_include_directories(GazeRedirect PUBLIC
${SDK_INCLUDES_PATH}
)
if(MSVC)
set(ARSDK_PATH_STR ${CMAKE_CURRENT_SOURCE_DIR}/../../bin)
set(OPENCV_PATH_STR ${CMAKE_CURRENT_SOURCE_DIR}/../external/opencv/bin)
set(PATH_STR "PATH=%PATH%" ${OPENCV_PATH_STR})
set(CMD_ARG_STR "--model_path=\"${CMAKE_CURRENT_SOURCE_DIR}/../../bin/models\"")
target_link_libraries (GazeRedirect PUBLIC
${OPENGL_gl_LIBRARY}
opencv346
utils_sample
)
set_target_properties(GazeRedirect PROPERTIES
FOLDER SampleApps
VS_DEBUGGER_ENVIRONMENT "${PATH_STR}"
VS_DEBUGGER_COMMAND_ARGUMENTS "${CMD_ARG_STR}"
)
elseif(UNIX)
find_package(PNG REQUIRED)
find_package(JPEG REQUIRED)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pthread")
target_link_libraries(GazeRedirect PUBLIC
nvARPose
NVCVImage
OpenCV
utils_sample
)
endif(MSVC)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fpermissive")

453
samples/GazeRedirect/GazeEngine.cpp Normal file
View File

@@ -0,0 +1,453 @@
/*###############################################################################
#
# Copyright 2020 NVIDIA Corporation
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of
# this software and associated documentation files (the "Software"), to deal in
# the Software without restriction, including without limitation the rights to
# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
# the Software, and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
###############################################################################*/
#include <iostream>
#include "GazeEngine.h"
#include "RenderingUtils.h"
bool CheckResult(NvCV_Status nvErr, unsigned line) {
if (NVCV_SUCCESS == nvErr) return true;
std::cout << "ERROR: " << NvCV_GetErrorStringFromCode(nvErr) << ", line " << line << std::endl;
return false;
}
GazeEngine::Err GazeEngine::acquireGazeRedirection(cv::Mat& frame, cv::Mat& outputFrame) {
GazeEngine::Err err = GazeEngine::Err::errNone;
NvCV_Status nvErr;
if (!frame.empty()) {
NvCVImage fxSrcChunkyCPU;
(void)NVWrapperForCVMat(&frame, &fxSrcChunkyCPU);
nvErr = NvCVImage_Transfer(&fxSrcChunkyCPU, &inputImageBuffer, 1.0f, stream, &tmpImage);
BAIL_IF_NVERR(nvErr, err, GazeEngine::Err::errGeneral);
}
nvErr = NvAR_Run(gazeRedirectHandle);
BAIL_IF_NVERR(nvErr, err, GazeEngine::Err::errRun);
if (bGazeRedirect) {
// Redirection is taking place. The feature has an output redirected image
NvCVImage fxDstChunkyCPU;
(void)NVWrapperForCVMat(&outputFrame, &fxDstChunkyCPU);
nvErr = NvCVImage_Transfer(&outputImageBuffer, &fxDstChunkyCPU, 1.0f, stream, &tmpImage);
BAIL_IF_NVERR(nvErr, err, GazeEngine::Err::errGeneral);
} else {
// Redirection is not taking place. There is no output image, therefore clone the input frame to output.
outputFrame = frame.clone();
}
if (getAverageLandmarksConfidence() < confidenceThreshold) return GazeEngine::Err::errRun;
bail:
if (err != Err::errNone) {
printf("ERROR: An error has occured while running the Gaze Redirection \n");
}
return err;
}
NvAR_RenderingParams* GazeEngine::getRenderingParams() { return rendering_params; }
GazeEngine::Err GazeEngine::createGazeRedirectionFeature(const char* modelPath, unsigned int batchsize) {
GazeEngine::Err err = GazeEngine::Err::errNone;
NvCV_Status cuErr = NvAR_CudaStreamCreate(&stream);
if (NVCV_SUCCESS != cuErr) {
printf("Cannot create a cuda stream: %s\n", NvCV_GetErrorStringFromCode(cuErr));
return errInitialization;
}
NvCV_Status nvErr;
nvErr = NvAR_Create(NvAR_Feature_GazeRedirection, &gazeRedirectHandle);
BAIL_IF_NVERR(nvErr, err, GazeEngine::Err::errEffect);
if (bUseOTAU && (!modelPath || !modelPath[0])) {
nvErr = NvAR_SetString(gazeRedirectHandle, NvAR_Parameter_Config(ModelDir), this->fdOTAModelPath);
BAIL_IF_NVERR(nvErr, err, GazeEngine::Err::errParameter);
} else {
nvErr = NvAR_SetString(gazeRedirectHandle, NvAR_Parameter_Config(ModelDir), modelPath);
BAIL_IF_NVERR(nvErr, err, GazeEngine::Err::errParameter);
}
nvErr = NvAR_SetU32(gazeRedirectHandle, NvAR_Parameter_Config(Landmarks_Size), numLandmarks); // TODO: Check if nonzero??
BAIL_IF_NVERR(nvErr, err, GazeEngine::Err::errParameter);
// Temporal flag set to -1 = 0xffffffff: turn on all filtering
nvErr = NvAR_SetU32(gazeRedirectHandle, NvAR_Parameter_Config(Temporal), (bStabilizeFace ? -1 : 0));
BAIL_IF_NVERR(nvErr, err, GazeEngine::Err::errParameter);
nvErr = NvAR_SetU32(gazeRedirectHandle, NvAR_Parameter_Config(GazeRedirect), bGazeRedirect);
BAIL_IF_NVERR(nvErr, err, GazeEngine::Err::errParameter);
nvErr = NvAR_SetCudaStream(gazeRedirectHandle, NvAR_Parameter_Config(CUDAStream), stream);
BAIL_IF_NVERR(nvErr, err, GazeEngine::Err::errParameter);
nvErr = NvAR_SetU32(gazeRedirectHandle, NvAR_Parameter_Config(EyeSizeSensitivity), eyeSizeSensitivity);
BAIL_IF_NVERR(nvErr, err, GazeEngine::Err::errParameter);
nvErr = NvAR_Load(gazeRedirectHandle);
BAIL_IF_NVERR(nvErr, err, GazeEngine::Err::errInitialization);
bail:
if (err != Err::errNone) {
printf("ERROR: An error has occured while initializing Gaze Redirection\n");
}
return err;
}
GazeEngine::Err GazeEngine::initGazeRedirectionIOParams() {
GazeEngine::Err err = GazeEngine::Err::errNone;
unsigned int OUTPUT_SIZE_KPTS, OUTPUT_GAZE_SIZE = 2, HEAD_TRANSLATION_SIZE = 3;
NvCV_Status nvErr = NvCVImage_Alloc(&inputImageBuffer, input_image_width, input_image_height, NVCV_BGR, NVCV_U8,
NVCV_CHUNKY, NVCV_GPU, 1);
BAIL_IF_NVERR(nvErr, err, GazeEngine::Err::errInitialization);
nvErr = NvAR_SetObject(gazeRedirectHandle, NvAR_Parameter_Input(Image), &inputImageBuffer, sizeof(NvCVImage));
BAIL_IF_NVERR(nvErr, err, GazeEngine::Err::errParameter);
if (bGazeRedirect) {
// Redirection is set. Allocate output image buffer.
nvErr = NvCVImage_Alloc(&outputImageBuffer, input_image_width, input_image_height, NVCV_BGR, NVCV_U8, NVCV_CHUNKY,
NVCV_GPU, 1);
BAIL_IF_NVERR(nvErr, err, GazeEngine::Err::errInitialization);
nvErr = NvAR_SetObject(gazeRedirectHandle, NvAR_Parameter_Output(Image), &outputImageBuffer, sizeof(NvCVImage));
BAIL_IF_NVERR(nvErr, err, GazeEngine::Err::errParameter);
}
nvErr = NvAR_SetS32(gazeRedirectHandle, NvAR_Parameter_Input(Width), input_image_width);
BAIL_IF_NVERR(nvErr, err, GazeEngine::Err::errParameter);
nvErr = NvAR_SetS32(gazeRedirectHandle, NvAR_Parameter_Input(Height), input_image_height);
BAIL_IF_NVERR(nvErr, err, GazeEngine::Err::errParameter);
nvErr = NvAR_GetU32(gazeRedirectHandle, NvAR_Parameter_Config(Landmarks_Size), &OUTPUT_SIZE_KPTS);
BAIL_IF_NVERR(nvErr, err, GazeEngine::Err::errParameter);
facial_landmarks.assign(batchSize * OUTPUT_SIZE_KPTS, {0.f, 0.f});
nvErr = NvAR_SetObject(gazeRedirectHandle, NvAR_Parameter_Output(Landmarks), facial_landmarks.data(),
sizeof(NvAR_Point2f));
BAIL_IF_NVERR(nvErr, err, GazeEngine::Err::errParameter);
gaze_output_landmarks.assign(batchSize * num_output_landmarks , { 0.f, 0.f });
nvErr = NvAR_SetObject(gazeRedirectHandle, NvAR_Parameter_Output(GazeOutputLandmarks), gaze_output_landmarks.data(),
sizeof(NvAR_Point2f));
BAIL_IF_NVERR(nvErr, err, GazeEngine::Err::errParameter);
facial_landmarks_confidence.assign(batchSize * OUTPUT_SIZE_KPTS, 0.f);
nvErr = NvAR_SetF32Array(gazeRedirectHandle, NvAR_Parameter_Output(LandmarksConfidence),
facial_landmarks_confidence.data(), batchSize * OUTPUT_SIZE_KPTS);
BAIL_IF_NVERR(nvErr, err, GazeEngine::Err::errParameter);
nvErr = NvAR_SetF32Array(gazeRedirectHandle, NvAR_Parameter_Output(OutputGazeVector), gaze_angles_vector,
batchSize * OUTPUT_GAZE_SIZE);
BAIL_IF_NVERR(nvErr, err, GazeEngine::Err::errParameter);
nvErr = NvAR_SetF32Array(gazeRedirectHandle, NvAR_Parameter_Output(OutputHeadTranslation), head_translation,
batchSize * HEAD_TRANSLATION_SIZE);
BAIL_IF_NVERR(nvErr, err, GazeEngine::Err::errParameter);
nvErr = NvAR_SetObject(gazeRedirectHandle, NvAR_Parameter_Output(HeadPose), &head_pose, sizeof(NvAR_Quaternion));
BAIL_IF_NVERR(nvErr, err, GazeEngine::Err::errParameter);
nvErr =
NvAR_SetObject(gazeRedirectHandle, NvAR_Parameter_Output(GazeDirection), &gaze_direction, sizeof(NvAR_Point3f));
BAIL_IF_NVERR(nvErr, err, GazeEngine::Err::errParameter);
output_bbox_data.assign(batchSize, {0.f, 0.f, 0.f, 0.f});
output_bboxes.boxes = output_bbox_data.data();
output_bboxes.max_boxes = (uint8_t)batchSize;
output_bboxes.num_boxes = (uint8_t)batchSize;
nvErr = NvAR_SetObject(gazeRedirectHandle, NvAR_Parameter_Output(BoundingBoxes), &output_bboxes, sizeof(NvAR_BBoxes));
BAIL_IF_NVERR(nvErr, err, GazeEngine::Err::errParameter);
bail:
if (err != Err::errNone) {
printf("ERROR: An error has occured while setting input, output parmeters for Gaze Redirection\n");
}
return err;
}
void GazeEngine::destroyGazeRedirectionFeature() {
if (stream) {
NvAR_CudaStreamDestroy(stream);
stream = 0;
}
output_bbox_data.clear();
facial_landmarks.clear();
facial_landmarks_confidence.clear();
NvCVImage_Dealloc(&inputImageBuffer);
NvCVImage_Dealloc(&outputImageBuffer);
if (rendering_params) {
delete rendering_params;
rendering_params = nullptr;
}
if (gazeRedirectHandle) {
(void)NvAR_Destroy(gazeRedirectHandle);
gazeRedirectHandle = nullptr;
}
}
unsigned GazeEngine::findFaceBoxes() {
NvCV_Status nvErr = NvAR_Run(faceDetectHandle);
if (NVCV_SUCCESS != nvErr) return 0;
return (unsigned)output_bboxes.num_boxes;
}
NvAR_Rect* GazeEngine::getLargestBox() {
NvAR_Rect *box, *bigBox, *lastBox;
float maxArea, area;
for (lastBox = (box = &output_bboxes.boxes[0]) + output_bboxes.num_boxes, bigBox = nullptr, maxArea = 0;
box != lastBox; ++box) {
if (maxArea < (area = box->width * box->height)) {
maxArea = area;
bigBox = box;
}
}
return bigBox;
}
NvAR_BBoxes* GazeEngine::getBoundingBoxes() { return &output_bboxes; }
void GazeEngine::enlargeAndSquarifyImageBox(float enlarge, NvAR_Rect& box, int FLAG_variant) {
NvAR_Vector2f size = {box.width * .5f, box.height * .5f};
NvAR_Point2f center = {box.x + size.x, box.y + size.y};
float t;
size.x *= (1.f + enlarge);
size.y *= (1.f + enlarge);
if (!(FLAG_variant & 1)) /* Default: enforce square bounding box */
{
if (size.x < size.y) /* Make square */
size.x = size.y;
else
size.y = size.x;
}
if (center.x < size.x) /* Shift box into image left-right */
center.x = size.x;
else if (center.x > (t = input_image_width - size.x))
center.x = t;
if (center.y < size.y) /* Shift box into image up-down */
center.y = size.y;
else if (center.y > (t = input_image_height - size.y))
center.y = t;
// TODO: Above we assume that the box is smaller than the image.
box.width = roundf(size.x * 2.f); /* Integral box */
box.height = roundf(size.y * 2.f);
box.x = roundf(center.x - box.width * .5f);
box.y = roundf(center.y - box.height * .5f);
}
void GazeEngine::DrawPose(const cv::Mat& src, const NvAR_Quaternion* pose) const {
const float vector_scale = 50.0f;
const int thickness = 2;
float rot_mat[3][3];
set_rotation_from_quaternion(pose, rot_mat[0]);
const auto avg_landmark_pos = GetAverageLandmarkPositionInGlSpace();
cv::Point p0 = {static_cast<int>(avg_landmark_pos[0]), static_cast<int>(avg_landmark_pos[1])};
cv::Point px = p0 + cv::Point(std::lround(rot_mat[0][0] * vector_scale), std::lround(rot_mat[0][1] * vector_scale));
cv::Point py = p0 + cv::Point(std::lround(rot_mat[1][0] * vector_scale), std::lround(rot_mat[1][1] * vector_scale));
cv::Point pz = p0 + cv::Point(std::lround(rot_mat[2][0] * vector_scale), std::lround(rot_mat[2][1] * vector_scale));
// Convert from OpenGL to OpenCV space
p0.y = src.rows - 1 - p0.y;
px.y = src.rows - 1 - px.y;
py.y = src.rows - 1 - py.y;
pz.y = src.rows - 1 - pz.y;
cv::line(src, p0, px, CV_RGB(255, 0, 0), thickness);
cv::line(src, p0, py, CV_RGB(0, 255, 0), thickness);
cv::line(src, p0, pz, CV_RGB(0, 0, 255), thickness);
}
std::array<float, 2> GazeEngine::GetAverageLandmarkPositionInGlSpace() const{
std::array<float, 2> res = { 0.0f, 0.0f };
for (const auto& landmark : facial_landmarks) {
res[0] += landmark.x;
res[1] += landmark.y;
}
res[0] /= facial_landmarks.size();
res[1] /= facial_landmarks.size();
res[1] = input_image_height - res[1]; //Convert y coordinate from CV to GL space
return res;
}
void GazeEngine::DrawEstimatedGaze(const cv::Mat& src) {
// Get the largest bounding box of the face.
NvAR_Rect* pFaceBox = getLargestBox();
std::vector<cv::Point3f> gaze_direction_3d;
const float distance = 50;
// Create opencv Point3f objects from direction points
cv::Point3f gaze_direction_origin(gaze_direction[0].x, gaze_direction[0].y, gaze_direction[0].z);
cv::Point3f gaze_direction_target;
// Compute target point at a fixed distance from the gaze origin in the estimated gaze direction.
gaze_direction_target.x = gaze_direction[0].x + distance * gaze_direction[1].x;
gaze_direction_target.y = gaze_direction[0].y - distance * gaze_direction[1].y;
gaze_direction_target.z = gaze_direction[0].z - distance * gaze_direction[1].z;
// Compute 2D projections of the origin and target.
gaze_direction_3d.push_back(gaze_direction_origin);
gaze_direction_3d.push_back(gaze_direction_target);
// Intialize camera matrix and coefficiennts for projecting into the image plane.
float fx = (float)src.cols, fy = (float)src.cols, cx = (float)src.cols / 2.f, cy = (float) src.rows / 2.f;
float camera_data[9] = {fx, 0.f, cx, 0.f, fy, cy, 0.f, 0.f, 1.f};
cv::Mat cam_matrix(3, 3, CV_32F, camera_data);
cv::Mat distCoeffs(5, 1, cv::DataType<double>::type); // Distortion vector
distCoeffs.at<double>(0) = 0;
distCoeffs.at<double>(1) = 0;
distCoeffs.at<double>(2) = 0;
distCoeffs.at<double>(3) = 0;
distCoeffs.at<double>(4) = 0;
cv::Mat rVec(3, 1, cv::DataType<double>::type); // Rotation vector
rVec.at<double>(0) = 0;
rVec.at<double>(1) = 0;
rVec.at<double>(2) = 0;
cv::Mat tVec(3, 1, cv::DataType<double>::type); // Translation vector
tVec.at<double>(0) = 0;
tVec.at<double>(1) = 0;
tVec.at<double>(2) = 0;
std::vector<cv::Point2f> gaze_direction_2d;
cv::projectPoints(gaze_direction_3d, rVec, tVec, cam_matrix, distCoeffs, gaze_direction_2d);
// Plot the original and target points on the image plane.
cv::line(src,
cv::Point((int)(gaze_direction_2d[0].x),
(int)(gaze_direction_2d[0].y)),
cv::Point((int)(gaze_direction_2d[1].x),
(int)(gaze_direction_2d[1].y)),
cv::Scalar(0, 0, 255), 2);
}
NvCV_Status GazeEngine::findLandmarks() {
NvCV_Status nvErr;
nvErr = NvAR_Run(landmarkDetectHandle);
if (NVCV_SUCCESS != nvErr) {
return nvErr;
}
if (getAverageLandmarksConfidence() < confidenceThreshold) {
return NVCV_ERR_GENERAL;
} else {
average_poses(getPose(), batchSize);
NvAR_Point2f *pt, *endPt;
int i = 0;
for (endPt = (pt = getLandmarks()) + numLandmarks; pt != endPt; ++pt, i += 2) {
for (int j = 1; j < batchSize; j++) {
pt->x += pt[j * numLandmarks].x;
pt->y += pt[j * numLandmarks].y;
}
// average batch of inferences to generate final result landmark points
pt->x /= batchSize;
pt->y /= batchSize;
}
}
return NVCV_SUCCESS;
}
NvAR_Point2f* GazeEngine::getLandmarks() { return facial_landmarks.data(); }
NvAR_Point2f* GazeEngine::getGazeOutputLandmarks() { return gaze_output_landmarks.data(); }
NvAR_Point3f* GazeEngine::getGazeDirectionPoints() { return gaze_direction; }
float* GazeEngine::getLandmarksConfidence() { return facial_landmarks_confidence.data(); }
float GazeEngine::getAverageLandmarksConfidence() {
float average_confidence = 0.0f;
float* keypoints_landmarks_confidence = getLandmarksConfidence();
for (int i = 0; i < batchSize * numLandmarks; i++) {
average_confidence += keypoints_landmarks_confidence[i];
}
average_confidence /= batchSize * numLandmarks;
return average_confidence;
}
NvAR_Quaternion* GazeEngine::getPose() { return &head_pose; }
float* GazeEngine::getHeadTranslation() { return head_translation; }
float* GazeEngine::getGazeVector() { return gaze_angles_vector; }
unsigned GazeEngine::findLargestFaceBox(NvAR_Rect& faceBox, int variant) {
unsigned n;
NvAR_Rect* pFaceBox;
n = findFaceBoxes();
if (n >= 1) {
pFaceBox = getLargestBox();
if (nullptr == pFaceBox) {
faceBox.x = faceBox.y = faceBox.width = faceBox.height = 0.0f;
} else {
faceBox = *pFaceBox;
}
enlargeAndSquarifyImageBox(.2f, faceBox, variant);
}
return n;
}
unsigned GazeEngine::acquireFaceBox(cv::Mat& src, NvAR_Rect& faceBox, int variant) {
unsigned n = 0;
NvCVImage fxSrcChunkyCPU;
(void)NVWrapperForCVMat(&src, &fxSrcChunkyCPU);
NvCV_Status cvErr = NvCVImage_Transfer(&fxSrcChunkyCPU, &inputImageBuffer, 1.0f, stream, &tmpImage);
if (NVCV_SUCCESS != cvErr) {
return n;
}
n = findLargestFaceBox(faceBox, variant);
return n;
}
unsigned GazeEngine::acquireFaceBoxAndLandmarks(cv::Mat& src, NvAR_Point2f* refMarks, NvAR_Rect& faceBox) {
unsigned n = 0;
NvCVImage fxSrcChunkyCPU;
(void)NVWrapperForCVMat(&src, &fxSrcChunkyCPU);
NvCV_Status cvErr = NvCVImage_Transfer(&fxSrcChunkyCPU, &inputImageBuffer, 1.0f, stream, &tmpImage);
if (NVCV_SUCCESS != cvErr) {
return n;
}
if (findLandmarks() != NVCV_SUCCESS) return 0;
faceBox = output_bboxes.boxes[0];
n = 1;
memcpy(refMarks, getLandmarks(), sizeof(NvAR_Point2f) * numLandmarks);
return n;
}
void GazeEngine::setFaceStabilization(bool _bStabilizeFace) { bStabilizeFace = _bStabilizeFace; }
void GazeEngine::setGazeRedirect(bool _bGazeRedirect) {
// If this variable is set, gaze redirection occurs in addition to estimation.
bGazeRedirect = _bGazeRedirect;
}
GazeEngine::Err GazeEngine::setNumLandmarks(int n) {
GazeEngine::Err err = errNone;
for (auto const& info : LANDMARKS_INFO) {
if (n == info.numPoints) {
numLandmarks = info.numPoints;
confidenceThreshold = info.confidence_threshold;
return err;
}
}
err = errGeneral;
return err;
}
void GazeEngine::setEyeSizeSensitivity(unsigned _eyeSizeSensitivity) { eyeSizeSensitivity = _eyeSizeSensitivity; }

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/*###############################################################################
#
# Copyright 2020 NVIDIA Corporation
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of
# this software and associated documentation files (the "Software"), to deal in
# the Software without restriction, including without limitation the rights to
# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
# the Software, and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
###############################################################################*/
#ifndef __GAZE_ENGINE__
#define __GAZE_ENGINE__
#include <random>
#include "FeatureVertexName.h"
#include "nvAR.h"
#include "nvCVOpenCV.h"
class KalmanFilter1D {
private:
float Q_; // Covariance of the process noise
float xhat_; // Current prediction
float xhatminus_; // Previous prediction
float P_; // Estimated accuracy of xhat_
float Pminus_; // Previous P_
float K_; // Kalman gain
float R_; // Covariance of the observation noise
bool bFirstUse;
public:
KalmanFilter1D() { reset(); }
KalmanFilter1D(float Q, float R) { reset(Q, R); }
void reset() {
R_ = 0.005f * 0.005f;
Q_ = 1e-5f;
xhat_ = 0.0f;
xhatminus_ = 0.0f;
P_ = 1;
bFirstUse = true;
Pminus_ = 0.0f;
K_ = 0.0f;
}
void reset(float Q, float R) {
reset();
Q_ = Q;
R_ = R;
}
float update(float val) {
if (bFirstUse) {
xhat_ = val;
bFirstUse = false;
}
xhatminus_ = xhat_;
Pminus_ = P_ + Q_;
K_ = Pminus_ / (Pminus_ + R_);
xhat_ = xhatminus_ + K_ * (val - xhatminus_);
P_ = (1 - K_) * Pminus_;
return xhat_;
}
};
bool CheckResult(NvCV_Status nvErr, unsigned line);
#define BAIL_IF_ERR(err) \
do { \
if (0 != (err)) { \
goto bail; \
} \
} while (0)
#define BAIL_IF_NVERR(nvErr, err, code) \
do { \
if (!CheckResult(nvErr, __LINE__)) { \
err = code; \
goto bail; \
} \
} while (0)
typedef struct LandmarksProperties {
int numPoints;
float confidence_threshold;
} LandmarksProperties;
/********************************************************************************
* GazeEngine
********************************************************************************/
class GazeEngine {
public:
enum Err { errNone, errGeneral, errRun, errInitialization, errRead, errEffect, errParameter };
int input_image_width, input_image_height, input_image_pitch;
const LandmarksProperties LANDMARKS_INFO[2] = {{68, 15.0f}, // number of landmark points, confidence threshold value
{126, 5.0f}};
void setInputImageWidth(int width) { input_image_width = width; }
void setInputImageHeight(int height) { input_image_height = height; }
Err createGazeRedirectionFeature(const char* modelPath, unsigned int _batchSize = 1);
void destroyGazeRedirectionFeature();
Err initGazeRedirectionIOParams();
unsigned findFaceBoxes();
NvAR_Rect* getLargestBox();
NvCV_Status findLandmarks();
NvAR_BBoxes* getBoundingBoxes();
/**
* Landmarks corresponding to facial keypoints
*
* @returns Pointer to the landmarks array
*/
NvAR_Point2f* getLandmarks();
/**
* Output landmarks corresponding to the redirected eyes from the gaze redirection network
*
* @returns Pointer to the landmarks array
*/
NvAR_Point2f* getGazeOutputLandmarks();
NvAR_Quaternion* getPose();
float* getHeadTranslation();
float* getGazeVector();
float* getLandmarksConfidence();
float getAverageLandmarksConfidence();
void enlargeAndSquarifyImageBox(float enlarge, NvAR_Rect& box, int FLAG_variant);
unsigned findLargestFaceBox(NvAR_Rect& faceBox, int variant = 0);
unsigned acquireFaceBox(cv::Mat& src, NvAR_Rect& faceBox, int variant = 0);
unsigned acquireFaceBoxAndLandmarks(cv::Mat& src, NvAR_Point2f* refMarks, NvAR_Rect& faceBox);
Err acquireGazeRedirection(cv::Mat& frame, cv::Mat& outputFrame);
NvAR_RenderingParams* getRenderingParams();
void setFaceStabilization(bool);
Err setNumLandmarks(int);
void setGazeRedirect(bool _bGazeRedirect);
void setEyeSizeSensitivity(unsigned);
int getNumLandmarks() { return numLandmarks; }
int getNumGazeOutputLandmarks() { return num_output_landmarks; }
void DrawPose(const cv::Mat& src, const NvAR_Quaternion* pose) const;
std::array<float, 2> GetAverageLandmarkPositionInGlSpace() const;
void DrawEstimatedGaze(const cv::Mat& src);
NvAR_Point3f* getGazeDirectionPoints();
NvCVImage inputImageBuffer{}, tmpImage{}, outputImageBuffer{};
NvAR_FeatureHandle faceDetectHandle{}, landmarkDetectHandle{}, gazeRedirectHandle{};
std::vector<NvAR_Point2f> facial_landmarks;
std::vector<NvAR_Point2f> gaze_output_landmarks;
std::vector<float> facial_landmarks_confidence;
NvAR_Point3f gaze_direction[2] = {{0.f, 0.f, 0.f}};
NvAR_Quaternion head_pose;
float gaze_angles_vector[2] = {0.f};
float head_translation[3] = {0.f};
NvAR_RenderingParams* rendering_params{};
CUstream stream{};
std::vector<NvAR_Rect> output_bbox_data;
std::vector<float> output_bbox_conf_data;
NvAR_BBoxes output_bboxes{};
int batchSize;
std::mt19937 ran;
int numLandmarks;
int num_output_landmarks;
int eyeSizeSensitivity;
float confidenceThreshold;
std::string face_model;
bool bStabilizeFace;
bool bUseOTAU;
bool bGazeRedirect;
char *fdOTAModelPath, *ldOTAModelPath;
GazeEngine() {
batchSize = 1;
bStabilizeFace = true;
bGazeRedirect = true;
numLandmarks = LANDMARKS_INFO[0].numPoints;
num_output_landmarks = 12;
confidenceThreshold = LANDMARKS_INFO[0].confidence_threshold;
input_image_width = 640;
input_image_height = 480;
input_image_pitch = 3 * input_image_width * sizeof(unsigned char); // RGB
bUseOTAU = false;
fdOTAModelPath = NULL;
ldOTAModelPath = NULL;
eyeSizeSensitivity = 3;
}
};
#endif

858
samples/GazeRedirect/GazeRedirect.cpp Normal file
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/*###############################################################################
#
# Copyright 2020 NVIDIA Corporation
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of
# this software and associated documentation files (the "Software"), to deal in
# the Software without restriction, including without limitation the rights to
# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
# the Software, and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
###############################################################################*/
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <algorithm>
#include <chrono>
#include <cmath>
#include <ctime>
#include <iostream>
#include <iomanip>
#include <fstream>
#include "GazeEngine.h"
#include "RenderingUtils.h"
#include "nvAR.h"
#include "nvAR_defs.h"
#include "opencv2/opencv.hpp"
#if CV_MAJOR_VERSION >= 4
#define CV_CAP_PROP_FRAME_WIDTH cv::CAP_PROP_FRAME_WIDTH
#define CV_CAP_PROP_FRAME_HEIGHT cv::CAP_PROP_FRAME_HEIGHT
#define CV_CAP_PROP_FPS cv::CAP_PROP_FPS
#define CV_CAP_PROP_FRAME_COUNT cv::CAP_PROP_FRAME_COUNT
#endif
#ifndef M_PI
#define M_PI 3.1415926535897932385
#endif /* M_PI */
#ifndef M_2PI
#define M_2PI 6.2831853071795864769
#endif /* M_2PI */
#ifndef M_PI_2
#define M_PI_2 1.5707963267948966192
#endif /* M_PI_2 */
#define F_PI ((float)M_PI)
#define F_PI_2 ((float)M_PI_2)
#define F_2PI ((float)M_2PI)
#define DEGREES_PER_RADIAN (180.0 / M_PI)
#ifdef _MSC_VER
#define strcasecmp _stricmp
#endif /* _MSC_VER */
#define BAIL(err, code) \
do { \
err = code; \
goto bail; \
} while (0)
/********************************************************************************
* Command-line arguments
********************************************************************************/
bool FLAG_debug = false, FLAG_verbose = false, FLAG_temporal = true, FLAG_captureOutputs = false,
FLAG_drawVisualization = true, FLAG_offlineMode = false, FLAG_isNumLandmarks126 = false,
FLAG_splitScreenView = true, FLAG_displayLandmarks = false, FLAG_gazeRedirect=true;
std::string FLAG_outDir, FLAG_inFile, FLAG_outFile, FLAG_modelPath, FLAG_landmarks, FLAG_captureCodec = "avc1",
FLAG_camRes = "480";
unsigned FLAG_camID = 0;
unsigned FLAG_eyeSizeSensitivity = 3;
/********************************************************************************
* Usage
********************************************************************************/
static void Usage() {
printf(
"GazeRedirect [<args> ...]\n"
"where <args> is\n"
" --verbose[=(true|false)] report interesting info\n"
" --debug[=(true|false)] report debugging info\n"
" --temporal[=(true|false)] temporally optimize face rect and landmarks\n"
" --capture_outputs[=(true|false)] enables video/image capture and writing face detection/landmark outputs\n"
" --offline_mode[=(true|false)] disables webcam, reads video from file and writes output video results\n"
" --cam_res=[WWWx]HHH specify resolution as height or width x height\n"
" --cam_id=<id> by default 0, specify int ID of camera in case of multiple cameras \n"
" --codec=<fourcc> FOURCC code for the desired codec (default H264)\n"
" --in=<file> specify the input file\n"
" --out=<file> specify the output file\n"
" --model_path=<path> specify the directory containing the TRT models\n"
" --landmarks_126[=(true|false)] set the number of facial landmark points to 126, otherwise default to 68\n"
" --eyesize_sensitivity set the eye size sensitivity parameter, an integer value between 2 and 6 (default 3)\n"
" --split_screen_view split the screen to view original image side-by-side with the gaze redirected image, default to split. \n"
" --draw_visualization draw the landmarks, display gaze estimation and head rotation, default to true\n"
" --redirect_gaze redirection of the eyes in addition to estimating gaze, default to true\n"
"(Default)."
" --benchmarks[=<pattern>] run benchmarks\n");
}
static bool GetFlagArgVal(const char *flag, const char *arg, const char **val) {
if (*arg != '-') {
return false;
}
while (*++arg == '-') {
continue;
}
const char *s = strchr(arg, '=');
if (s == NULL) {
if (strcmp(flag, arg) != 0) {
return false;
}
*val = NULL;
return true;
}
unsigned n = (unsigned)(s - arg);
if ((strlen(flag) != n) || (strncmp(flag, arg, n) != 0)) {
return false;
}
*val = s + 1;
return true;
}
static bool GetFlagArgVal(const char *flag, const char *arg, std::string *val) {
const char *valStr;
if (!GetFlagArgVal(flag, arg, &valStr)) return false;
val->assign(valStr ? valStr : "");
return true;
}
static bool GetFlagArgVal(const char *flag, const char *arg, bool *val) {
const char *valStr;
bool success = GetFlagArgVal(flag, arg, &valStr);
if (success) {
*val = (valStr == NULL || strcasecmp(valStr, "true") == 0 || strcasecmp(valStr, "on") == 0 ||
strcasecmp(valStr, "yes") == 0 || strcasecmp(valStr, "1") == 0);
}
return success;
}
bool GetFlagArgVal(const char *flag, const char *arg, long *val) {
const char *valStr;
bool success = GetFlagArgVal(flag, arg, &valStr);
if (success) {
*val = strtol(valStr, NULL, 10);
}
return success;
}
static bool GetFlagArgVal(const char *flag, const char *arg, unsigned *val) {
long longVal;
bool success = GetFlagArgVal(flag, arg, &longVal);
if (success) {
*val = (unsigned)longVal;
}
return success;
}
/********************************************************************************
* StringToFourcc
********************************************************************************/
static int StringToFourcc(const std::string &str) {
union chint {
int i;
char c[4];
};
chint x = {0};
for (int n = (str.size() < 4) ? (int)str.size() : 4; n--;) x.c[n] = str[n];
return x.i;
}
/********************************************************************************
* ParseMyArgs
********************************************************************************/
static int ParseMyArgs(int argc, char **argv) {
// query NVAR_MODEL_DIR environment variable first before checking the command line arguments
const char *modelPath = getenv("NVAR_MODEL_DIR");
if (modelPath) {
FLAG_modelPath = modelPath;
}
int errs = 0;
for (--argc, ++argv; argc--; ++argv) {
bool help;
const char *arg = *argv;
if (arg[0] != '-') {
continue;
} else if ((arg[1] == '-') &&
(GetFlagArgVal("verbose", arg, &FLAG_verbose) || GetFlagArgVal("debug", arg, &FLAG_debug) ||
GetFlagArgVal("in", arg, &FLAG_inFile) || GetFlagArgVal("out", arg, &FLAG_outFile) ||
GetFlagArgVal("offline_mode", arg, &FLAG_offlineMode) ||
GetFlagArgVal("landmarks_126", arg, &FLAG_isNumLandmarks126) ||
GetFlagArgVal("capture_outputs", arg, &FLAG_captureOutputs) ||
GetFlagArgVal("cam_res", arg, &FLAG_camRes) || GetFlagArgVal("codec", arg, &FLAG_captureCodec) ||
GetFlagArgVal("cam_id", arg, &FLAG_camID) ||
GetFlagArgVal("landmarks", arg, &FLAG_landmarks) || GetFlagArgVal("model_path", arg, &FLAG_modelPath) ||
GetFlagArgVal("eyesize_sensitivity", arg, &FLAG_eyeSizeSensitivity) ||
GetFlagArgVal("split_screen_view", arg, &FLAG_splitScreenView) ||
GetFlagArgVal("temporal", arg, &FLAG_temporal) ||
GetFlagArgVal("draw_visualization", arg, &FLAG_drawVisualization) ||
GetFlagArgVal("redirect_gaze", arg, &FLAG_gazeRedirect))) {
continue;
} else if (GetFlagArgVal("help", arg, &help)) {
Usage();
} else if (arg[1] != '-') {
for (++arg; *arg; ++arg) {
if (*arg == 'v') {
FLAG_verbose = true;
} else {
// printf("Unknown flag: \"-%c\"\n", *arg);
}
}
continue;
} else {
// printf("Unknown flag: \"%s\"\n", arg);
}
}
return errs;
}
enum {
myErrNone = 0,
myErrShader = -1,
myErrProgram = -2,
myErrTexture = -3,
};
#if 1
class MyTimer {
public:
MyTimer() { dt = dt.zero(); } /**< Clear the duration to 0. */
void start() { t0 = std::chrono::high_resolution_clock::now(); } /**< Start the timer. */
void pause() { dt = std::chrono::high_resolution_clock::now() - t0; } /**< Pause the timer. */
void resume() { t0 = std::chrono::high_resolution_clock::now() - dt; } /**< Resume the timer. */
void stop() { pause(); } /**< Stop the timer. */
double elapsedTimeFloat() const {
return std::chrono::duration<double>(dt).count();
} /**< Report the elapsed time as a float. */
private:
std::chrono::high_resolution_clock::time_point t0;
std::chrono::high_resolution_clock::duration dt;
};
#endif
std::string getCalendarTime() {
// Get the current time
std::chrono::system_clock::time_point currentTimePoint = std::chrono::system_clock::now();
// Convert to time_t from time_point
std::time_t currentTime = std::chrono::system_clock::to_time_t(currentTimePoint);
// Convert to tm to get structure holding a calendar date and time broken down into its components.
std::tm brokenTime = *std::localtime(&currentTime);
std::ostringstream calendarTime;
// std::put_time has not been implemented under GCC5. In order to support centOS7(GCC4.8), we use strftime.
// (YYYY-MM-DD-HH-mm-ss)<Year>-<Month>-<Date>-<Hour>-<Mins>-<Seconds>
// Get the time since epoch 0(Thu Jan 1 00:00:00 1970) and the remainder after division is our milliseconds
char foo[24];
if(0 < strftime(foo, sizeof(foo), "%Y-%m-%d-%H-%M-%S", &brokenTime)) {
//cout << foo << endl;
std::string fooStr(foo);
calendarTime << fooStr;
}
std::chrono::milliseconds currentMilliseconds =
std::chrono::duration_cast<std::chrono::milliseconds>(currentTimePoint.time_since_epoch()) % 1000;
// Append the milliseconds to the stream
calendarTime << "-" << std::setfill('0') << std::setw(3) << currentMilliseconds.count(); // milliseconds
return calendarTime.str();
}
class DoApp {
public:
enum Err {
errNone = GazeEngine::Err::errNone,
errGeneral = GazeEngine::Err::errGeneral,
errRun = GazeEngine::Err::errRun,
errInitialization = GazeEngine::Err::errInitialization,
errRead = GazeEngine::Err::errRead,
errEffect = GazeEngine::Err::errEffect,
errParameter = GazeEngine::Err::errParameter,
errUnimplemented,
errMissing,
errVideo,
errImageSize,
errNotFound,
errGLFWInit,
errGLInit,
errRendererInit,
errGLResource,
errGLGeneric,
errSDK,
errCuda,
errCancel,
errCamera
};
Err doAppErr(GazeEngine::Err status) { return (Err)status; }
GazeEngine gaze_ar_engine;
DoApp();
~DoApp();
void stop();
Err initGazeEngine(const char *modelPath = nullptr, bool isLandmarks126 = false, bool gazeRedirect=true, unsigned eyeSizeSensitivity=3);
Err initCamera(const char *camRes = nullptr, unsigned int camID = 0);
Err initOfflineMode(const char *inputFilename = nullptr, const char *outputFilename = nullptr);
Err acquireFrame();
Err acquireFaceBox();
Err acquireFaceBoxAndLandmarks();
Err acquireGazeRedirection();
Err run();
void drawFPS(cv::Mat &img);
void drawBBoxes(const cv::Mat &src, NvAR_Rect *output_bbox);
void DrawLandmarkPoints(const cv::Mat &src, NvAR_Point2f *facial_landmarks, int numLandmarks, cv::Scalar *color);
void drawKalmanStatus(cv::Mat &img);
void drawVideoCaptureStatus(cv::Mat &img);
void processKey(int key);
Err writeVideo(const cv::Mat &frm);
void getFPS();
static const char *errorStringFromCode(Err code);
cv::VideoCapture cap{};
cv::Mat frame, outputFrame;
int inputWidth, inputHeight;
cv::VideoWriter gazeRedirectOutputVideo{};
int frameIndex;
static const char windowTitle[];
double frameTime;
// std::chrono::high_resolution_clock::time_point frameTimer;
MyTimer frameTimer;
cv::VideoWriter capturedVideo;
std::ofstream gazeEngineVideoOutputFile;
GazeEngine::Err nvErr;
bool drawVisualization, showFPS, captureVideo, splitScreenView, displayLandmarks;
};
DoApp *gApp = nullptr;
const char DoApp::windowTitle[] = "GazeRedirect App";
void DoApp::processKey(int key) {
switch (key) {
case '3':
gaze_ar_engine.destroyGazeRedirectionFeature();
gaze_ar_engine.createGazeRedirectionFeature(FLAG_modelPath.c_str());
gaze_ar_engine.initGazeRedirectionIOParams();
break;
case 'C':
case 'c':
captureVideo = !captureVideo;
break;
case 'W':
case 'w':
drawVisualization = !drawVisualization;
break;
case 'F':
case 'f':
showFPS = !showFPS;
break;
case 'O':
case 'o':
splitScreenView = !splitScreenView;
break;
case 'L':
case 'l':
displayLandmarks = !displayLandmarks;
break;
default:
break;
}
}
DoApp::Err DoApp::initGazeEngine(const char *modelPath, bool isNumLandmarks126, bool gazeRedirect, unsigned eyeSizeSensitivity) {
if (!cap.isOpened()) return errVideo;
int numLandmarkPoints = isNumLandmarks126 ? 126 : 68;
gaze_ar_engine.setNumLandmarks(numLandmarkPoints);
gaze_ar_engine.setGazeRedirect(gazeRedirect);
gaze_ar_engine.setEyeSizeSensitivity(eyeSizeSensitivity);
nvErr = gaze_ar_engine.createGazeRedirectionFeature(modelPath);
#ifdef DEBUG
detector->setOutputLocation(outputDir);
#endif // DEBUG
#define VISUALIZE
#ifdef VISUALIZE
if (!FLAG_offlineMode) cv::namedWindow(windowTitle, 1);
#endif // VISUALIZE
frameIndex = 0;
return doAppErr(nvErr);
}
void DoApp::stop() {
gaze_ar_engine.destroyGazeRedirectionFeature();
if (FLAG_offlineMode) {
gazeRedirectOutputVideo.release();
}
cap.release();
#ifdef VISUALIZE
cv::destroyAllWindows();
#endif // VISUALIZE
}
void DoApp::drawBBoxes(const cv::Mat &src, NvAR_Rect *output_bbox) {
cv::Mat frm;
if (FLAG_offlineMode)
frm = src.clone();
else
frm = src;
if (output_bbox)
cv::rectangle(frm, cv::Point(lround(output_bbox->x), lround(output_bbox->y)),
cv::Point(lround(output_bbox->x + output_bbox->width), lround(output_bbox->y + output_bbox->height)),
cv::Scalar(255, 0, 0), 2);
}
DoApp::Err DoApp::writeVideo(const cv::Mat &frm) {
if (captureVideo) {
if (!capturedVideo.isOpened()) {
//Assign the filename for capturing video
const std::string currentCalendarTime = getCalendarTime();
const std::string capturedOutputFileName = currentCalendarTime + ".mp4";
getFPS();
if (frameTime) {
float fps = (float)(1.0 / frameTime);
// Open the video for writing.
capturedVideo.open(capturedOutputFileName, StringToFourcc(FLAG_captureCodec), fps,
cv::Size(frm.cols, frm.rows));
if (!capturedVideo.isOpened()) {
std::cout << "Error: Could not open video for writing: \"" << capturedOutputFileName << "\"\n";
return errVideo;
}
if (FLAG_verbose) {
std::cout << "Capturing video started" << std::endl;
}
capturedVideo << frm;
} else { // If frameTime is 0.f, returns without writing the frame to the Video
return errNone;
}
} else {
// Write each frame to the Video
capturedVideo << frm;
}
} else {
if (capturedVideo.isOpened()) {
if (FLAG_verbose) {
std::cout << "Capturing video ended" << std::endl;
}
capturedVideo.release();
}
}
return errNone;
}
void DoApp::DrawLandmarkPoints(const cv::Mat &src, NvAR_Point2f *facial_landmarks, int numLandmarks , cv::Scalar* color) {
if (!facial_landmarks)
return;
cv::Mat frm;
if (FLAG_offlineMode)
frm = src;
else
frm = src;
NvAR_Point2f *pt, *endPt;
for (endPt = (pt = (NvAR_Point2f *)facial_landmarks) + numLandmarks; pt < endPt; ++pt)
cv::circle(frm, cv::Point(lround(pt->x), lround(pt->y)), 1.5, *color, -1);
}
DoApp::Err DoApp::acquireFrame() {
Err err = errNone;
// If the machine goes to sleep with the app running and then wakes up, the camera object is not destroyed but the
// frames we try to read are empty. So we try to re-initialize the camera with the same resolution settings. If the
// resolution has changed, you will need to destroy and create the features again with the new camera resolution (not
// done here) as well as reallocate memory accordingly with GazeEngine::initGazeRedirectionIOParams()
cap >> frame; // get a new frame from camera into the class variable frame.
if (frame.empty()) {
// if in Offline mode, this means end of video,so we return
if (FLAG_offlineMode) return errVideo;
// try Init one more time if reading frames from camera
err = initCamera(FLAG_camRes.c_str(), FLAG_camID);
if (err != errNone) return err;
cap >> frame;
if (frame.empty()) return errVideo;
}
return err;
}
DoApp::Err DoApp::acquireGazeRedirection() {
DoApp::Err doErr = errNone;
nvErr = gaze_ar_engine.acquireGazeRedirection(frame, outputFrame);
if (GazeEngine::Err::errNone == nvErr) {
#ifdef VISUALIZE
frameTimer.pause();
NvAR_Rect *bbox = gaze_ar_engine.getLargestBox();
// Check for valid bounding box in case confidence check fails
if (drawVisualization && bbox) {
// Display gaze direction and head rotation
NvAR_Quaternion *pose = gaze_ar_engine.getPose();
NvAR_Point3f *gaze_direction = gaze_ar_engine.getGazeDirectionPoints();
if (pose) {
gaze_ar_engine.DrawPose(frame, pose);
gaze_ar_engine.DrawEstimatedGaze(frame);
}
// Print head pose
char buf[64];
float fontsize;
if (inputHeight <= 720) {
fontsize = 0.5;
} else {
fontsize = .5;
}
snprintf(buf, sizeof(buf), " Original image");
cv::putText(frame, buf, cv::Point(120, 40), cv::FONT_HERSHEY_SIMPLEX, fontsize, cv::Scalar(0, 255, 0), 1);
snprintf(buf, sizeof(buf), "gaze angles: %.1f %.1f", gaze_ar_engine.gaze_angles_vector[0] * DEGREES_PER_RADIAN,
gaze_ar_engine.gaze_angles_vector[1] * DEGREES_PER_RADIAN);
cv::putText(frame, buf, cv::Point(120, 110), cv::FONT_HERSHEY_SIMPLEX, fontsize, cv::Scalar(0, 255, 0), 1);
// display head translationss
snprintf(buf, sizeof(buf), "head translation: %.1f %.1f %.1f", gaze_ar_engine.head_translation[0],
gaze_ar_engine.head_translation[1], gaze_ar_engine.head_translation[2]);
cv::putText(frame, buf, cv::Point(80, 80), cv::FONT_HERSHEY_SIMPLEX, fontsize, cv::Scalar(0, 255, 0), 1);
// Display landmarks if flag is set.
if (displayLandmarks) {
cv::Scalar landmarks_color(0, 0, 255);
DrawLandmarkPoints(frame, gaze_ar_engine.getLandmarks(), gaze_ar_engine.getNumLandmarks(), &landmarks_color);
drawBBoxes(frame, gaze_ar_engine.getLargestBox());
}
snprintf(buf, sizeof(buf), "Redirected Output");
cv::putText(outputFrame, buf, cv::Point(80, 40), cv::FONT_HERSHEY_SIMPLEX, fontsize, cv::Scalar(0, 255, 0), 1);
}
}
if (FLAG_offlineMode) {
if (splitScreenView && FLAG_gazeRedirect) {
// Store the original and redirected image side-by-side
cv::Mat matDst(cv::Size(outputFrame.cols * 2, outputFrame.rows), outputFrame.type(), cv::Scalar::all(0));
cv::Mat matRoi = matDst(cv::Rect(0, 0, outputFrame.cols, outputFrame.rows));
frame.copyTo(matRoi);
matRoi = matDst(cv::Rect(outputFrame.cols, 0, outputFrame.cols, outputFrame.rows));
outputFrame.copyTo(matRoi);
gazeRedirectOutputVideo.write(matDst);
} else {
if (!FLAG_gazeRedirect) {
gazeRedirectOutputVideo.write(frame);
} else {
gazeRedirectOutputVideo.write(outputFrame);
}
}
}
frameTimer.resume();
#endif //VISUALIZE
// If captureOutputs has been set to true, save the output frames.
if (FLAG_captureOutputs) {
// Display original gives the option to display the original frame in addition to the redirected image
// side-by-side.
if (splitScreenView && FLAG_gazeRedirect) {
// Store the original and redirected image side-by-side
cv::Mat matDst(cv::Size(outputFrame.cols * 2, outputFrame.rows), outputFrame.type(), cv::Scalar::all(0));
cv::Mat matRoi = matDst(cv::Rect(0, 0, outputFrame.cols, outputFrame.rows));
frame.copyTo(matRoi);
matRoi = matDst(cv::Rect(outputFrame.cols, 0, outputFrame.cols, outputFrame.rows));
outputFrame.copyTo(matRoi);
writeVideo(matDst);
} else {
if (!FLAG_gazeRedirect) {
writeVideo(frame);
} else {
writeVideo(outputFrame);
}
}
}
return doErr;
}
DoApp::Err DoApp::initCamera(const char *camRes, unsigned int camID) {
if (cap.open(camID)) {
if (camRes) {
int n;
n = sscanf(camRes, "%d%*[xX]%d", &inputWidth, &inputHeight);
switch (n) {
case 2:
break; // We have read both width and height
case 1:
inputHeight = inputWidth;
inputWidth = (int)(inputHeight * (4. / 3.) + .5);
break;
default:
inputHeight = 0;
inputWidth = 0;
break;
}
if (inputWidth) cap.set(CV_CAP_PROP_FRAME_WIDTH, inputWidth);
if (inputHeight) cap.set(CV_CAP_PROP_FRAME_HEIGHT, inputHeight);
inputWidth = (int)cap.get(CV_CAP_PROP_FRAME_WIDTH);
inputHeight = (int)cap.get(CV_CAP_PROP_FRAME_HEIGHT);
gaze_ar_engine.setInputImageWidth(inputWidth);
gaze_ar_engine.setInputImageHeight(inputHeight);
}
} else
return errCamera;
return errNone;
}
DoApp::Err DoApp::initOfflineMode(const char *inputFilename, const char *outputFilename) {
if (cap.open(inputFilename)) {
inputWidth = (int)cap.get(CV_CAP_PROP_FRAME_WIDTH);
inputHeight = (int)cap.get(CV_CAP_PROP_FRAME_HEIGHT);
gaze_ar_engine.setInputImageWidth(inputWidth);
gaze_ar_engine.setInputImageHeight(inputHeight);
} else {
printf("ERROR: Unable to open the input video file \"%s\" \n", inputFilename);
return Err::errVideo;
}
std::string fdOutputVideoName, fldOutputVideoName, ffOutputVideoName, fgzOutputVideoName;
std::string outputFilePrefix;
if (outputFilename && strlen(outputFilename) != 0) {
outputFilePrefix = outputFilename;
} else {
size_t lastindex = std::string(inputFilename).find_last_of(".");
outputFilePrefix = std::string(inputFilename).substr(0, lastindex);
outputFilePrefix = outputFilePrefix + "_gaze.mp4";
}
fgzOutputVideoName = outputFilePrefix;
if (splitScreenView && FLAG_gazeRedirect) {
if (!gazeRedirectOutputVideo.open(fgzOutputVideoName, StringToFourcc(FLAG_captureCodec), cap.get(CV_CAP_PROP_FPS),
cv::Size(inputWidth * 2, inputHeight))) {
printf("ERROR: Unable to open the output video file \"%s\" \n", fgzOutputVideoName.c_str());
return Err::errGeneral;
}
} else {
if (!gazeRedirectOutputVideo.open(fgzOutputVideoName, StringToFourcc(FLAG_captureCodec), cap.get(CV_CAP_PROP_FPS),
cv::Size(inputWidth, inputHeight))) {
printf("ERROR: Unable to open the output video file \"%s\" \n", fgzOutputVideoName.c_str());
return Err::errGeneral;
}
}
captureVideo = true;
return Err::errNone;
}
DoApp::DoApp() {
// Make sure things are initialized properly
gApp = this;
drawVisualization = FLAG_drawVisualization;
showFPS = false;
splitScreenView = FLAG_splitScreenView;
displayLandmarks = true;
captureVideo = false;
frameTime = 0;
frameIndex = 0;
nvErr = GazeEngine::errNone;
}
DoApp::~DoApp() {}
char *g_nvARSDKPath = NULL;
int chooseGPU() {
// If the system has multiple supported GPUs then the application
// should use CUDA driver APIs or CUDA runtime APIs to enumerate
// the GPUs and select one based on the application's requirements
// Cuda device 0
return 0;
}
void DoApp::getFPS() {
const float timeConstant = 16.f;
frameTimer.stop();
float t = (float)frameTimer.elapsedTimeFloat();
if (t < 100.f) {
if (frameTime)
frameTime += (t - frameTime) * (1.f / timeConstant); // 1 pole IIR filter
else
frameTime = t;
} else { // Ludicrous time interval; reset
frameTime = 0.f; // WAKE UP
}
frameTimer.start();
}
void DoApp::drawFPS(cv::Mat &img) {
getFPS();
if (frameTime && showFPS) {
char buf[32];
snprintf(buf, sizeof(buf), "%.1f", 1. / frameTime);
cv::putText(img, buf, cv::Point(img.cols - 80, img.rows - 10), cv::FONT_HERSHEY_SIMPLEX, 1,
cv::Scalar(255, 255, 255), 1);
}
}
void DoApp::drawKalmanStatus(cv::Mat &img) {
char buf[32];
snprintf(buf, sizeof(buf), "Kalman %s", (gaze_ar_engine.bStabilizeFace ? "on" : "off"));
cv::putText(img, buf, cv::Point(10, img.rows - 40), cv::FONT_HERSHEY_SIMPLEX, 1, cv::Scalar(255, 255, 255), 1);
}
void DoApp::drawVideoCaptureStatus(cv::Mat &img) {
char buf[32];
snprintf(buf, sizeof(buf), "Video Capturing %s", (captureVideo ? "on" : "off"));
cv::putText(img, buf, cv::Point(10, img.rows - 70), cv::FONT_HERSHEY_SIMPLEX, 1, cv::Scalar(255, 255, 255), 1);
}
DoApp::Err DoApp::run() {
DoApp::Err doErr = errNone;
GazeEngine::Err err = gaze_ar_engine.initGazeRedirectionIOParams();
if (err != GazeEngine::Err::errNone) {
return doAppErr(err);
}
while (1) {
doErr = acquireFrame();
if (frame.empty() && FLAG_offlineMode) {
// We have reached the end of the video
// so return without any error.
return DoApp::errNone;
} else if (doErr != DoApp::errNone) {
return doErr;
}
outputFrame.create(inputHeight, inputWidth, frame.type());
doErr = acquireGazeRedirection();
if (DoApp::errCancel == doErr || DoApp::errVideo == doErr) return doErr;
#ifdef VISUALIZE
if (!frame.empty() && !FLAG_offlineMode) {
if (drawVisualization) {
drawFPS(frame);
drawKalmanStatus(frame);
if (FLAG_captureOutputs && captureVideo) {
if (!FLAG_gazeRedirect) {
drawVideoCaptureStatus(frame);
} else {
drawVideoCaptureStatus(outputFrame);
}
}
}
if (splitScreenView && FLAG_gazeRedirect) {
// Store the original and redirected image side-by-side
cv::Mat matDst(cv::Size(outputFrame.cols * 2, outputFrame.rows), outputFrame.type(), cv::Scalar::all(0));
cv::Mat matRoi = matDst(cv::Rect(0, 0, outputFrame.cols, outputFrame.rows));
frame.copyTo(matRoi);
matRoi = matDst(cv::Rect(outputFrame.cols, 0, outputFrame.cols, outputFrame.rows));
outputFrame.copyTo(matRoi);
cv::imshow(windowTitle, matDst);
} else {
if (!FLAG_gazeRedirect) {
cv::imshow(windowTitle, frame);
} else {
cv::imshow(windowTitle, outputFrame);
}
}
}
#endif //VISUALIZE
if (!FLAG_offlineMode) {
int n = cv::waitKey(1);
if (n >= 0) {
static const int ESC_KEY = 27;
if (n == ESC_KEY) break;
processKey(n);
}
}
}
return doErr;
}
const char *DoApp::errorStringFromCode(DoApp::Err code) {
struct LUTEntry {
Err code;
const char *str;
};
static const LUTEntry lut[] = {
{errNone, "no error"},
{errGeneral, "an error has occured"},
{errRun, "an error has occured while the feature is running"},
{errInitialization, "Initializing Gaze Engine failed"},
{errRead, "an error has occured while reading a file"},
{errEffect, "an error has occured while creating a feature"},
{errParameter, "an error has occured while setting a parameter for a feature"},
{errUnimplemented, "the feature is unimplemented"},
{errMissing, "missing input parameter"},
{errVideo, "no video source has been found"},
{errImageSize, "the image size cannot be accommodated"},
{errNotFound, "the item cannot be found"},
{errGLFWInit, "GLFW initialization failed"},
{errGLInit, "OpenGL initialization failed"},
{errRendererInit, "renderer initialization failed"},
{errGLResource, "an OpenGL resource could not be found"},
{errGLGeneric, "an otherwise unspecified OpenGL error has occurred"},
{errSDK, "an SDK error has occurred"},
{errCuda, "a CUDA error has occurred"},
{errCancel, "the user cancelled"},
{errCamera, "unable to connect to the camera"},
};
for (const LUTEntry *p = lut; p < &lut[sizeof(lut) / sizeof(lut[0])]; ++p)
if (p->code == code) return p->str;
static char msg[18];
snprintf(msg, sizeof(msg), "error #%d", code);
return msg;
}
/********************************************************************************
* main
********************************************************************************/
int main(int argc, char **argv) {
// Parse the arguments
if (0 != ParseMyArgs(argc, argv)) return -100;
DoApp app;
DoApp::Err doErr = DoApp::Err::errNone;
if (FLAG_verbose) printf("Enable temporal optimizations in detecting face and landmarks = %d\n", FLAG_temporal);
app.gaze_ar_engine.setFaceStabilization(FLAG_temporal);
if (FLAG_offlineMode) {
if (FLAG_inFile.empty()) {
doErr = DoApp::errMissing;
printf("ERROR: %s, please specify input file using --in \n", app.errorStringFromCode(doErr));
goto bail;
}
doErr = app.initOfflineMode(FLAG_inFile.c_str(), FLAG_outFile.c_str());
} else {
doErr = app.initCamera(FLAG_camRes.c_str(), FLAG_camID);
}
BAIL_IF_ERR(doErr);
doErr = app.initGazeEngine(FLAG_modelPath.c_str(), FLAG_isNumLandmarks126, FLAG_gazeRedirect, FLAG_eyeSizeSensitivity);
BAIL_IF_ERR(doErr);
doErr = app.run();
BAIL_IF_ERR(doErr);
bail:
if (doErr) printf("ERROR: %s\n", app.errorStringFromCode(doErr));
app.stop();
return (int)doErr;
}

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samples/GazeRedirect/GazeRedirect.exe Normal file
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samples/GazeRedirect/Readme.txt Normal file
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@@ -0,0 +1,10 @@
GazeRedirect is a sample Windows application that demonstrates the gaze redirection feature of the NVIDIA AR SDK. The application requires a video feed
from a camera connected to the computer running the application, or from a video file, as specified
with command-line arguments (enumerated by executing: GazeRedirect.exe --help).
Here are a few controls for the gaze feature:
'o'/'O' - Display original image and the redirected image side-by-side
'w'/'W' - Display visualization of landmarks and head translation values.
't'/'T' - Display head translation values when visualization is on.
For more controls and configurations of the sample app, please read the SDK programming guide.

3
samples/GazeRedirect/run.bat Normal file
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@@ -0,0 +1,3 @@
SETLOCAL
SET PATH=%PATH%;..\..\samples\external\opencv\bin;..\..\bin;
GazeRedirect.exe

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samples/external/GLAD/include/KHR/khrplatform.h vendored Normal file
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#ifndef __khrplatform_h_
#define __khrplatform_h_
/*
** Copyright (c) 2008-2018 The Khronos Group Inc.
**
** Permission is hereby granted, free of charge, to any person obtaining a
** copy of this software and/or associated documentation files (the
** "Materials"), to deal in the Materials without restriction, including
** without limitation the rights to use, copy, modify, merge, publish,
** distribute, sublicense, and/or sell copies of the Materials, and to
** permit persons to whom the Materials are furnished to do so, subject to
** the following conditions:
**
** The above copyright notice and this permission notice shall be included
** in all copies or substantial portions of the Materials.
**
** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
*/
/* Khronos platform-specific types and definitions.
*
* The master copy of khrplatform.h is maintained in the Khronos EGL
* Registry repository at https://github.com/KhronosGroup/EGL-Registry
* The last semantic modification to khrplatform.h was at commit ID:
* 67a3e0864c2d75ea5287b9f3d2eb74a745936692
*
* Adopters may modify this file to suit their platform. Adopters are
* encouraged to submit platform specific modifications to the Khronos
* group so that they can be included in future versions of this file.
* Please submit changes by filing pull requests or issues on
* the EGL Registry repository linked above.
*
*
* See the Implementer's Guidelines for information about where this file
* should be located on your system and for more details of its use:
* http://www.khronos.org/registry/implementers_guide.pdf
*
* This file should be included as
* #include <KHR/khrplatform.h>
* by Khronos client API header files that use its types and defines.
*
* The types in khrplatform.h should only be used to define API-specific types.
*
* Types defined in khrplatform.h:
* khronos_int8_t signed 8 bit
* khronos_uint8_t unsigned 8 bit
* khronos_int16_t signed 16 bit
* khronos_uint16_t unsigned 16 bit
* khronos_int32_t signed 32 bit
* khronos_uint32_t unsigned 32 bit
* khronos_int64_t signed 64 bit
* khronos_uint64_t unsigned 64 bit
* khronos_intptr_t signed same number of bits as a pointer
* khronos_uintptr_t unsigned same number of bits as a pointer
* khronos_ssize_t signed size
* khronos_usize_t unsigned size
* khronos_float_t signed 32 bit floating point
* khronos_time_ns_t unsigned 64 bit time in nanoseconds
* khronos_utime_nanoseconds_t unsigned time interval or absolute time in
* nanoseconds
* khronos_stime_nanoseconds_t signed time interval in nanoseconds
* khronos_boolean_enum_t enumerated boolean type. This should
* only be used as a base type when a client API's boolean type is
* an enum. Client APIs which use an integer or other type for
* booleans cannot use this as the base type for their boolean.
*
* Tokens defined in khrplatform.h:
*
* KHRONOS_FALSE, KHRONOS_TRUE Enumerated boolean false/true values.
*
* KHRONOS_SUPPORT_INT64 is 1 if 64 bit integers are supported; otherwise 0.
* KHRONOS_SUPPORT_FLOAT is 1 if floats are supported; otherwise 0.
*
* Calling convention macros defined in this file:
* KHRONOS_APICALL
* KHRONOS_APIENTRY
* KHRONOS_APIATTRIBUTES
*
* These may be used in function prototypes as:
*
* KHRONOS_APICALL void KHRONOS_APIENTRY funcname(
* int arg1,
* int arg2) KHRONOS_APIATTRIBUTES;
*/
/*-------------------------------------------------------------------------
* Definition of KHRONOS_APICALL
*-------------------------------------------------------------------------
* This precedes the return type of the function in the function prototype.
*/
#if defined(_WIN32) && !defined(__SCITECH_SNAP__)
# define KHRONOS_APICALL __declspec(dllimport)
#elif defined (__SYMBIAN32__)
# define KHRONOS_APICALL IMPORT_C
#elif defined(__ANDROID__)
# define KHRONOS_APICALL __attribute__((visibility("default")))
#else
# define KHRONOS_APICALL
#endif
/*-------------------------------------------------------------------------
* Definition of KHRONOS_APIENTRY
*-------------------------------------------------------------------------
* This follows the return type of the function and precedes the function
* name in the function prototype.
*/
#if defined(_WIN32) && !defined(_WIN32_WCE) && !defined(__SCITECH_SNAP__)
/* Win32 but not WinCE */
# define KHRONOS_APIENTRY __stdcall
#else
# define KHRONOS_APIENTRY
#endif
/*-------------------------------------------------------------------------
* Definition of KHRONOS_APIATTRIBUTES
*-------------------------------------------------------------------------
* This follows the closing parenthesis of the function prototype arguments.
*/
#if defined (__ARMCC_2__)
#define KHRONOS_APIATTRIBUTES __softfp
#else
#define KHRONOS_APIATTRIBUTES
#endif
/*-------------------------------------------------------------------------
* basic type definitions
*-----------------------------------------------------------------------*/
#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || defined(__GNUC__) || defined(__SCO__) || defined(__USLC__)
/*
* Using <stdint.h>
*/
#include <stdint.h>
typedef int32_t khronos_int32_t;
typedef uint32_t khronos_uint32_t;
typedef int64_t khronos_int64_t;
typedef uint64_t khronos_uint64_t;
#define KHRONOS_SUPPORT_INT64 1
#define KHRONOS_SUPPORT_FLOAT 1
#elif defined(__VMS ) || defined(__sgi)
/*
* Using <inttypes.h>
*/
#include <inttypes.h>
typedef int32_t khronos_int32_t;
typedef uint32_t khronos_uint32_t;
typedef int64_t khronos_int64_t;
typedef uint64_t khronos_uint64_t;
#define KHRONOS_SUPPORT_INT64 1
#define KHRONOS_SUPPORT_FLOAT 1
#elif defined(_WIN32) && !defined(__SCITECH_SNAP__)
/*
* Win32
*/
typedef __int32 khronos_int32_t;
typedef unsigned __int32 khronos_uint32_t;
typedef __int64 khronos_int64_t;
typedef unsigned __int64 khronos_uint64_t;
#define KHRONOS_SUPPORT_INT64 1
#define KHRONOS_SUPPORT_FLOAT 1
#elif defined(__sun__) || defined(__digital__)
/*
* Sun or Digital
*/
typedef int khronos_int32_t;
typedef unsigned int khronos_uint32_t;
#if defined(__arch64__) || defined(_LP64)
typedef long int khronos_int64_t;
typedef unsigned long int khronos_uint64_t;
#else
typedef long long int khronos_int64_t;
typedef unsigned long long int khronos_uint64_t;
#endif /* __arch64__ */
#define KHRONOS_SUPPORT_INT64 1
#define KHRONOS_SUPPORT_FLOAT 1
#elif 0
/*
* Hypothetical platform with no float or int64 support
*/
typedef int khronos_int32_t;
typedef unsigned int khronos_uint32_t;
#define KHRONOS_SUPPORT_INT64 0
#define KHRONOS_SUPPORT_FLOAT 0
#else
/*
* Generic fallback
*/
#include <stdint.h>
typedef int32_t khronos_int32_t;
typedef uint32_t khronos_uint32_t;
typedef int64_t khronos_int64_t;
typedef uint64_t khronos_uint64_t;
#define KHRONOS_SUPPORT_INT64 1
#define KHRONOS_SUPPORT_FLOAT 1
#endif
/*
* Types that are (so far) the same on all platforms
*/
typedef signed char khronos_int8_t;
typedef unsigned char khronos_uint8_t;
typedef signed short int khronos_int16_t;
typedef unsigned short int khronos_uint16_t;
/*
* Types that differ between LLP64 and LP64 architectures - in LLP64,
* pointers are 64 bits, but 'long' is still 32 bits. Win64 appears
* to be the only LLP64 architecture in current use.
*/
#ifdef _WIN64
typedef signed long long int khronos_intptr_t;
typedef unsigned long long int khronos_uintptr_t;
typedef signed long long int khronos_ssize_t;
typedef unsigned long long int khronos_usize_t;
#else
typedef signed long int khronos_intptr_t;
typedef unsigned long int khronos_uintptr_t;
typedef signed long int khronos_ssize_t;
typedef unsigned long int khronos_usize_t;
#endif
#if KHRONOS_SUPPORT_FLOAT
/*
* Float type
*/
typedef float khronos_float_t;
#endif
#if KHRONOS_SUPPORT_INT64
/* Time types
*
* These types can be used to represent a time interval in nanoseconds or
* an absolute Unadjusted System Time. Unadjusted System Time is the number
* of nanoseconds since some arbitrary system event (e.g. since the last
* time the system booted). The Unadjusted System Time is an unsigned
* 64 bit value that wraps back to 0 every 584 years. Time intervals
* may be either signed or unsigned.
*/
typedef khronos_uint64_t khronos_utime_nanoseconds_t;
typedef khronos_int64_t khronos_stime_nanoseconds_t;
#endif
/*
* Dummy value used to pad enum types to 32 bits.
*/
#ifndef KHRONOS_MAX_ENUM
#define KHRONOS_MAX_ENUM 0x7FFFFFFF
#endif
/*
* Enumerated boolean type
*
* Values other than zero should be considered to be true. Therefore
* comparisons should not be made against KHRONOS_TRUE.
*/
typedef enum {
KHRONOS_FALSE = 0,
KHRONOS_TRUE = 1,
KHRONOS_BOOLEAN_ENUM_FORCE_SIZE = KHRONOS_MAX_ENUM
} khronos_boolean_enum_t;
#endif /* __khrplatform_h_ */

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####### Expanded from @PACKAGE_INIT@ by configure_package_config_file() #######
####### Any changes to this file will be overwritten by the next CMake run ####
####### The input file was Config.cmake.in ########
get_filename_component(PACKAGE_PREFIX_DIR "${CMAKE_CURRENT_LIST_DIR}/../../../" ABSOLUTE)
macro(set_and_check _var _file)
set(${_var} "${_file}")
if(NOT EXISTS "${_file}")
message(FATAL_ERROR "File or directory ${_file} referenced by variable ${_var} does not exist !")
endif()
endmacro()
macro(check_required_components _NAME)
foreach(comp ${${_NAME}_FIND_COMPONENTS})
if(NOT ${_NAME}_${comp}_FOUND)
if(${_NAME}_FIND_REQUIRED_${comp})
set(${_NAME}_FOUND FALSE)
endif()
endif()
endforeach()
endmacro()
####################################################################################
include("${CMAKE_CURRENT_LIST_DIR}/gladTargets.cmake")
check_required_components(glad)

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samples/external/GLAD/lib/cmake/glad/gladConfigVersion.cmake vendored Normal file
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# This is a basic version file for the Config-mode of find_package().
# It is used by write_basic_package_version_file() as input file for configure_file()
# to create a version-file which can be installed along a config.cmake file.
#
# The created file sets PACKAGE_VERSION_EXACT if the current version string and
# the requested version string are exactly the same and it sets
# PACKAGE_VERSION_COMPATIBLE if the current version is >= requested version,
# but only if the requested major version is the same as the current one.
# The variable CVF_VERSION must be set before calling configure_file().
set(PACKAGE_VERSION "0.1.29")
if(PACKAGE_VERSION VERSION_LESS PACKAGE_FIND_VERSION)
set(PACKAGE_VERSION_COMPATIBLE FALSE)
else()
if("0.1.29" MATCHES "^([0-9]+)\\.")
set(CVF_VERSION_MAJOR "${CMAKE_MATCH_1}")
else()
set(CVF_VERSION_MAJOR "0.1.29")
endif()
if(PACKAGE_FIND_VERSION_MAJOR STREQUAL CVF_VERSION_MAJOR)
set(PACKAGE_VERSION_COMPATIBLE TRUE)
else()
set(PACKAGE_VERSION_COMPATIBLE FALSE)
endif()
if(PACKAGE_FIND_VERSION STREQUAL PACKAGE_VERSION)
set(PACKAGE_VERSION_EXACT TRUE)
endif()
endif()
# if the installed or the using project don't have CMAKE_SIZEOF_VOID_P set, ignore it:
if("${CMAKE_SIZEOF_VOID_P}" STREQUAL "" OR "8" STREQUAL "")
return()
endif()
# check that the installed version has the same 32/64bit-ness as the one which is currently searching:
if(NOT CMAKE_SIZEOF_VOID_P STREQUAL "8")
math(EXPR installedBits "8 * 8")
set(PACKAGE_VERSION "${PACKAGE_VERSION} (${installedBits}bit)")
set(PACKAGE_VERSION_UNSUITABLE TRUE)
endif()

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#----------------------------------------------------------------
# Generated CMake target import file for configuration "Debug".
#----------------------------------------------------------------
# Commands may need to know the format version.
set(CMAKE_IMPORT_FILE_VERSION 1)
# Import target "glad::glad" for configuration "Debug"
set_property(TARGET glad::glad APPEND PROPERTY IMPORTED_CONFIGURATIONS DEBUG)
set_target_properties(glad::glad PROPERTIES
IMPORTED_LINK_INTERFACE_LANGUAGES_DEBUG "C"
IMPORTED_LOCATION_DEBUG "${_IMPORT_PREFIX}/lib/glad.lib"
)
list(APPEND _IMPORT_CHECK_TARGETS glad::glad )
list(APPEND _IMPORT_CHECK_FILES_FOR_glad::glad "${_IMPORT_PREFIX}/lib/glad.lib" )
# Commands beyond this point should not need to know the version.
set(CMAKE_IMPORT_FILE_VERSION)

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#----------------------------------------------------------------
# Generated CMake target import file for configuration "Release".
#----------------------------------------------------------------
# Commands may need to know the format version.
set(CMAKE_IMPORT_FILE_VERSION 1)
# Import target "glad::glad" for configuration "Release"
set_property(TARGET glad::glad APPEND PROPERTY IMPORTED_CONFIGURATIONS RELEASE)
set_target_properties(glad::glad PROPERTIES
IMPORTED_LINK_INTERFACE_LANGUAGES_RELEASE "C"
IMPORTED_LOCATION_RELEASE "${_IMPORT_PREFIX}/lib/glad.lib"
)
list(APPEND _IMPORT_CHECK_TARGETS glad::glad )
list(APPEND _IMPORT_CHECK_FILES_FOR_glad::glad "${_IMPORT_PREFIX}/lib/glad.lib" )
# Commands beyond this point should not need to know the version.
set(CMAKE_IMPORT_FILE_VERSION)

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# Generated by CMake
if("${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}" LESS 2.5)
message(FATAL_ERROR "CMake >= 2.6.0 required")
endif()
cmake_policy(PUSH)
cmake_policy(VERSION 2.6)
#----------------------------------------------------------------
# Generated CMake target import file.
#----------------------------------------------------------------
# Commands may need to know the format version.
set(CMAKE_IMPORT_FILE_VERSION 1)
# Protect against multiple inclusion, which would fail when already imported targets are added once more.
set(_targetsDefined)
set(_targetsNotDefined)
set(_expectedTargets)
foreach(_expectedTarget glad::glad)
list(APPEND _expectedTargets ${_expectedTarget})
if(NOT TARGET ${_expectedTarget})
list(APPEND _targetsNotDefined ${_expectedTarget})
endif()
if(TARGET ${_expectedTarget})
list(APPEND _targetsDefined ${_expectedTarget})
endif()
endforeach()
if("${_targetsDefined}" STREQUAL "${_expectedTargets}")
unset(_targetsDefined)
unset(_targetsNotDefined)
unset(_expectedTargets)
set(CMAKE_IMPORT_FILE_VERSION)
cmake_policy(POP)
return()
endif()
if(NOT "${_targetsDefined}" STREQUAL "")
message(FATAL_ERROR "Some (but not all) targets in this export set were already defined.\nTargets Defined: ${_targetsDefined}\nTargets not yet defined: ${_targetsNotDefined}\n")
endif()
unset(_targetsDefined)
unset(_targetsNotDefined)
unset(_expectedTargets)
# Compute the installation prefix relative to this file.
get_filename_component(_IMPORT_PREFIX "${CMAKE_CURRENT_LIST_FILE}" PATH)
get_filename_component(_IMPORT_PREFIX "${_IMPORT_PREFIX}" PATH)
get_filename_component(_IMPORT_PREFIX "${_IMPORT_PREFIX}" PATH)
get_filename_component(_IMPORT_PREFIX "${_IMPORT_PREFIX}" PATH)
if(_IMPORT_PREFIX STREQUAL "/")
set(_IMPORT_PREFIX "")
endif()
# Create imported target glad::glad
add_library(glad::glad STATIC IMPORTED)
set_target_properties(glad::glad PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${_IMPORT_PREFIX}/include/glad;${_IMPORT_PREFIX}/include"
)
# Load information for each installed configuration.
get_filename_component(_DIR "${CMAKE_CURRENT_LIST_FILE}" PATH)
file(GLOB CONFIG_FILES "${_DIR}/gladTargets-*.cmake")
foreach(f ${CONFIG_FILES})
include(${f})
endforeach()
# Cleanup temporary variables.
set(_IMPORT_PREFIX)
# Loop over all imported files and verify that they actually exist
foreach(target ${_IMPORT_CHECK_TARGETS} )
foreach(file ${_IMPORT_CHECK_FILES_FOR_${target}} )
if(NOT EXISTS "${file}" )
message(FATAL_ERROR "The imported target \"${target}\" references the file
\"${file}\"
but this file does not exist. Possible reasons include:
* The file was deleted, renamed, or moved to another location.
* An install or uninstall procedure did not complete successfully.
* The installation package was faulty and contained
\"${CMAKE_CURRENT_LIST_FILE}\"
but not all the files it references.
")
endif()
endforeach()
unset(_IMPORT_CHECK_FILES_FOR_${target})
endforeach()
unset(_IMPORT_CHECK_TARGETS)
# This file does not depend on other imported targets which have
# been exported from the same project but in a separate export set.
# Commands beyond this point should not need to know the version.
set(CMAKE_IMPORT_FILE_VERSION)
cmake_policy(POP)

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samples/external/GLFW/include/GLFW/glfw3.h vendored Normal file
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/*************************************************************************
* GLFW 3.2 - www.glfw.org
* A library for OpenGL, window and input
*------------------------------------------------------------------------
* Copyright (c) 2002-2006 Marcus Geelnard
* Copyright (c) 2006-2016 Camilla Berglund <elmindreda@glfw.org>
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would
* be appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must not
* be misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any source
* distribution.
*
*************************************************************************/
#ifndef _glfw3_native_h_
#define _glfw3_native_h_
#ifdef __cplusplus
extern "C" {
#endif
/*************************************************************************
* Doxygen documentation
*************************************************************************/
/*! @file glfw3native.h
* @brief The header of the native access functions.
*
* This is the header file of the native access functions. See @ref native for
* more information.
*/
/*! @defgroup native Native access
*
* **By using the native access functions you assert that you know what you're
* doing and how to fix problems caused by using them. If you don't, you
* shouldn't be using them.**
*
* Before the inclusion of @ref glfw3native.h, you may define exactly one
* window system API macro and zero or more context creation API macros.
*
* The chosen backends must match those the library was compiled for. Failure
* to do this will cause a link-time error.
*
* The available window API macros are:
* * `GLFW_EXPOSE_NATIVE_WIN32`
* * `GLFW_EXPOSE_NATIVE_COCOA`
* * `GLFW_EXPOSE_NATIVE_X11`
* * `GLFW_EXPOSE_NATIVE_WAYLAND`
* * `GLFW_EXPOSE_NATIVE_MIR`
*
* The available context API macros are:
* * `GLFW_EXPOSE_NATIVE_WGL`
* * `GLFW_EXPOSE_NATIVE_NSGL`
* * `GLFW_EXPOSE_NATIVE_GLX`
* * `GLFW_EXPOSE_NATIVE_EGL`
*
* These macros select which of the native access functions that are declared
* and which platform-specific headers to include. It is then up your (by
* definition platform-specific) code to handle which of these should be
* defined.
*/
/*************************************************************************
* System headers and types
*************************************************************************/
#if defined(GLFW_EXPOSE_NATIVE_WIN32)
// This is a workaround for the fact that glfw3.h needs to export APIENTRY (for
// example to allow applications to correctly declare a GL_ARB_debug_output
// callback) but windows.h assumes no one will define APIENTRY before it does
#undef APIENTRY
#include <windows.h>
#elif defined(GLFW_EXPOSE_NATIVE_COCOA)
#include <ApplicationServices/ApplicationServices.h>
#if defined(__OBJC__)
#import <Cocoa/Cocoa.h>
#else
typedef void* id;
#endif
#elif defined(GLFW_EXPOSE_NATIVE_X11)
#include <X11/Xlib.h>
#include <X11/extensions/Xrandr.h>
#elif defined(GLFW_EXPOSE_NATIVE_WAYLAND)
#include <wayland-client.h>
#elif defined(GLFW_EXPOSE_NATIVE_MIR)
#include <mir_toolkit/mir_client_library.h>
#endif
#if defined(GLFW_EXPOSE_NATIVE_WGL)
/* WGL is declared by windows.h */
#endif
#if defined(GLFW_EXPOSE_NATIVE_NSGL)
/* NSGL is declared by Cocoa.h */
#endif
#if defined(GLFW_EXPOSE_NATIVE_GLX)
#include <GL/glx.h>
#endif
#if defined(GLFW_EXPOSE_NATIVE_EGL)
#include <EGL/egl.h>
#endif
/*************************************************************************
* Functions
*************************************************************************/
#if defined(GLFW_EXPOSE_NATIVE_WIN32)
/*! @brief Returns the adapter device name of the specified monitor.
*
* @return The UTF-8 encoded adapter device name (for example `\\.\DISPLAY1`)
* of the specified monitor, or `NULL` if an [error](@ref error_handling)
* occurred.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.1.
*
* @ingroup native
*/
GLFWAPI const char* glfwGetWin32Adapter(GLFWmonitor* monitor);
/*! @brief Returns the display device name of the specified monitor.
*
* @return The UTF-8 encoded display device name (for example
* `\\.\DISPLAY1\Monitor0`) of the specified monitor, or `NULL` if an
* [error](@ref error_handling) occurred.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.1.
*
* @ingroup native
*/
GLFWAPI const char* glfwGetWin32Monitor(GLFWmonitor* monitor);
/*! @brief Returns the `HWND` of the specified window.
*
* @return The `HWND` of the specified window, or `NULL` if an
* [error](@ref error_handling) occurred.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.0.
*
* @ingroup native
*/
GLFWAPI HWND glfwGetWin32Window(GLFWwindow* window);
#endif
#if defined(GLFW_EXPOSE_NATIVE_WGL)
/*! @brief Returns the `HGLRC` of the specified window.
*
* @return The `HGLRC` of the specified window, or `NULL` if an
* [error](@ref error_handling) occurred.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.0.
*
* @ingroup native
*/
GLFWAPI HGLRC glfwGetWGLContext(GLFWwindow* window);
#endif
#if defined(GLFW_EXPOSE_NATIVE_COCOA)
/*! @brief Returns the `CGDirectDisplayID` of the specified monitor.
*
* @return The `CGDirectDisplayID` of the specified monitor, or
* `kCGNullDirectDisplay` if an [error](@ref error_handling) occurred.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.1.
*
* @ingroup native
*/
GLFWAPI CGDirectDisplayID glfwGetCocoaMonitor(GLFWmonitor* monitor);
/*! @brief Returns the `NSWindow` of the specified window.
*
* @return The `NSWindow` of the specified window, or `nil` if an
* [error](@ref error_handling) occurred.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.0.
*
* @ingroup native
*/
GLFWAPI id glfwGetCocoaWindow(GLFWwindow* window);
#endif
#if defined(GLFW_EXPOSE_NATIVE_NSGL)
/*! @brief Returns the `NSOpenGLContext` of the specified window.
*
* @return The `NSOpenGLContext` of the specified window, or `nil` if an
* [error](@ref error_handling) occurred.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.0.
*
* @ingroup native
*/
GLFWAPI id glfwGetNSGLContext(GLFWwindow* window);
#endif
#if defined(GLFW_EXPOSE_NATIVE_X11)
/*! @brief Returns the `Display` used by GLFW.
*
* @return The `Display` used by GLFW, or `NULL` if an
* [error](@ref error_handling) occurred.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.0.
*
* @ingroup native
*/
GLFWAPI Display* glfwGetX11Display(void);
/*! @brief Returns the `RRCrtc` of the specified monitor.
*
* @return The `RRCrtc` of the specified monitor, or `None` if an
* [error](@ref error_handling) occurred.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.1.
*
* @ingroup native
*/
GLFWAPI RRCrtc glfwGetX11Adapter(GLFWmonitor* monitor);
/*! @brief Returns the `RROutput` of the specified monitor.
*
* @return The `RROutput` of the specified monitor, or `None` if an
* [error](@ref error_handling) occurred.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.1.
*
* @ingroup native
*/
GLFWAPI RROutput glfwGetX11Monitor(GLFWmonitor* monitor);
/*! @brief Returns the `Window` of the specified window.
*
* @return The `Window` of the specified window, or `None` if an
* [error](@ref error_handling) occurred.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.0.
*
* @ingroup native
*/
GLFWAPI Window glfwGetX11Window(GLFWwindow* window);
#endif
#if defined(GLFW_EXPOSE_NATIVE_GLX)
/*! @brief Returns the `GLXContext` of the specified window.
*
* @return The `GLXContext` of the specified window, or `NULL` if an
* [error](@ref error_handling) occurred.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.0.
*
* @ingroup native
*/
GLFWAPI GLXContext glfwGetGLXContext(GLFWwindow* window);
/*! @brief Returns the `GLXWindow` of the specified window.
*
* @return The `GLXWindow` of the specified window, or `None` if an
* [error](@ref error_handling) occurred.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.2.
*
* @ingroup native
*/
GLFWAPI GLXWindow glfwGetGLXWindow(GLFWwindow* window);
#endif
#if defined(GLFW_EXPOSE_NATIVE_WAYLAND)
/*! @brief Returns the `struct wl_display*` used by GLFW.
*
* @return The `struct wl_display*` used by GLFW, or `NULL` if an
* [error](@ref error_handling) occurred.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.2.
*
* @ingroup native
*/
GLFWAPI struct wl_display* glfwGetWaylandDisplay(void);
/*! @brief Returns the `struct wl_output*` of the specified monitor.
*
* @return The `struct wl_output*` of the specified monitor, or `NULL` if an
* [error](@ref error_handling) occurred.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.2.
*
* @ingroup native
*/
GLFWAPI struct wl_output* glfwGetWaylandMonitor(GLFWmonitor* monitor);
/*! @brief Returns the main `struct wl_surface*` of the specified window.
*
* @return The main `struct wl_surface*` of the specified window, or `NULL` if
* an [error](@ref error_handling) occurred.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.2.
*
* @ingroup native
*/
GLFWAPI struct wl_surface* glfwGetWaylandWindow(GLFWwindow* window);
#endif
#if defined(GLFW_EXPOSE_NATIVE_MIR)
/*! @brief Returns the `MirConnection*` used by GLFW.
*
* @return The `MirConnection*` used by GLFW, or `NULL` if an
* [error](@ref error_handling) occurred.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.2.
*
* @ingroup native
*/
GLFWAPI MirConnection* glfwGetMirDisplay(void);
/*! @brief Returns the Mir output ID of the specified monitor.
*
* @return The Mir output ID of the specified monitor, or zero if an
* [error](@ref error_handling) occurred.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.2.
*
* @ingroup native
*/
GLFWAPI int glfwGetMirMonitor(GLFWmonitor* monitor);
/*! @brief Returns the `MirSurface*` of the specified window.
*
* @return The `MirSurface*` of the specified window, or `NULL` if an
* [error](@ref error_handling) occurred.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.2.
*
* @ingroup native
*/
GLFWAPI MirSurface* glfwGetMirWindow(GLFWwindow* window);
#endif
#if defined(GLFW_EXPOSE_NATIVE_EGL)
/*! @brief Returns the `EGLDisplay` used by GLFW.
*
* @return The `EGLDisplay` used by GLFW, or `EGL_NO_DISPLAY` if an
* [error](@ref error_handling) occurred.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.0.
*
* @ingroup native
*/
GLFWAPI EGLDisplay glfwGetEGLDisplay(void);
/*! @brief Returns the `EGLContext` of the specified window.
*
* @return The `EGLContext` of the specified window, or `EGL_NO_CONTEXT` if an
* [error](@ref error_handling) occurred.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.0.
*
* @ingroup native
*/
GLFWAPI EGLContext glfwGetEGLContext(GLFWwindow* window);
/*! @brief Returns the `EGLSurface` of the specified window.
*
* @return The `EGLSurface` of the specified window, or `EGL_NO_SURFACE` if an
* [error](@ref error_handling) occurred.
*
* @thread_safety This function may be called from any thread. Access is not
* synchronized.
*
* @since Added in version 3.0.
*
* @ingroup native
*/
GLFWAPI EGLSurface glfwGetEGLSurface(GLFWwindow* window);
#endif
#ifdef __cplusplus
}
#endif
#endif /* _glfw3_native_h_ */

1
samples/external/GLFW/lib/cmake/glfw3/glfw3Config.cmake vendored Normal file
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include("${CMAKE_CURRENT_LIST_DIR}/glfw3Targets.cmake")

46
samples/external/GLFW/lib/cmake/glfw3/glfw3ConfigVersion.cmake vendored Normal file
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# This is a basic version file for the Config-mode of find_package().
# It is used by write_basic_package_version_file() as input file for configure_file()
# to create a version-file which can be installed along a config.cmake file.
#
# The created file sets PACKAGE_VERSION_EXACT if the current version string and
# the requested version string are exactly the same and it sets
# PACKAGE_VERSION_COMPATIBLE if the current version is >= requested version,
# but only if the requested major version is the same as the current one.
# The variable CVF_VERSION must be set before calling configure_file().
set(PACKAGE_VERSION "3.2.1")
if(PACKAGE_VERSION VERSION_LESS PACKAGE_FIND_VERSION)
set(PACKAGE_VERSION_COMPATIBLE FALSE)
else()
if("3.2.1" MATCHES "^([0-9]+)\\.")
set(CVF_VERSION_MAJOR "${CMAKE_MATCH_1}")
else()
set(CVF_VERSION_MAJOR "3.2.1")
endif()
if(PACKAGE_FIND_VERSION_MAJOR STREQUAL CVF_VERSION_MAJOR)
set(PACKAGE_VERSION_COMPATIBLE TRUE)
else()
set(PACKAGE_VERSION_COMPATIBLE FALSE)
endif()
if(PACKAGE_FIND_VERSION STREQUAL PACKAGE_VERSION)
set(PACKAGE_VERSION_EXACT TRUE)
endif()
endif()
# if the installed or the using project don't have CMAKE_SIZEOF_VOID_P set, ignore it:
if("${CMAKE_SIZEOF_VOID_P}" STREQUAL "" OR "8" STREQUAL "")
return()
endif()
# check that the installed version has the same 32/64bit-ness as the one which is currently searching:
if(NOT CMAKE_SIZEOF_VOID_P STREQUAL "8")
math(EXPR installedBits "8 * 8")
set(PACKAGE_VERSION "${PACKAGE_VERSION} (${installedBits}bit)")
set(PACKAGE_VERSION_UNSUITABLE TRUE)
endif()

19
samples/external/GLFW/lib/cmake/glfw3/glfw3Targets-debug.cmake vendored Normal file
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#----------------------------------------------------------------
# Generated CMake target import file for configuration "Debug".
#----------------------------------------------------------------
# Commands may need to know the format version.
set(CMAKE_IMPORT_FILE_VERSION 1)
# Import target "glfw" for configuration "Debug"
set_property(TARGET glfw APPEND PROPERTY IMPORTED_CONFIGURATIONS DEBUG)
set_target_properties(glfw PROPERTIES
IMPORTED_LINK_INTERFACE_LANGUAGES_DEBUG "C"
IMPORTED_LOCATION_DEBUG "${_IMPORT_PREFIX}/lib/glfw3.lib"
)
list(APPEND _IMPORT_CHECK_TARGETS glfw )
list(APPEND _IMPORT_CHECK_FILES_FOR_glfw "${_IMPORT_PREFIX}/lib/glfw3.lib" )
# Commands beyond this point should not need to know the version.
set(CMAKE_IMPORT_FILE_VERSION)

19
samples/external/GLFW/lib/cmake/glfw3/glfw3Targets-release.cmake vendored Normal file
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#----------------------------------------------------------------
# Generated CMake target import file for configuration "Release".
#----------------------------------------------------------------
# Commands may need to know the format version.
set(CMAKE_IMPORT_FILE_VERSION 1)
# Import target "glfw" for configuration "Release"
set_property(TARGET glfw APPEND PROPERTY IMPORTED_CONFIGURATIONS RELEASE)
set_target_properties(glfw PROPERTIES
IMPORTED_LINK_INTERFACE_LANGUAGES_RELEASE "C"
IMPORTED_LOCATION_RELEASE "${_IMPORT_PREFIX}/lib/glfw3.lib"
)
list(APPEND _IMPORT_CHECK_TARGETS glfw )
list(APPEND _IMPORT_CHECK_FILES_FOR_glfw "${_IMPORT_PREFIX}/lib/glfw3.lib" )
# Commands beyond this point should not need to know the version.
set(CMAKE_IMPORT_FILE_VERSION)

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samples/external/GLFW/lib/cmake/glfw3/glfw3Targets.cmake vendored Normal file
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# Generated by CMake
if("${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}" LESS 2.5)
message(FATAL_ERROR "CMake >= 2.6.0 required")
endif()
cmake_policy(PUSH)
cmake_policy(VERSION 2.6)
#----------------------------------------------------------------
# Generated CMake target import file.
#----------------------------------------------------------------
# Commands may need to know the format version.
set(CMAKE_IMPORT_FILE_VERSION 1)
# Protect against multiple inclusion, which would fail when already imported targets are added once more.
set(_targetsDefined)
set(_targetsNotDefined)
set(_expectedTargets)
foreach(_expectedTarget glfw)
list(APPEND _expectedTargets ${_expectedTarget})
if(NOT TARGET ${_expectedTarget})
list(APPEND _targetsNotDefined ${_expectedTarget})
endif()
if(TARGET ${_expectedTarget})
list(APPEND _targetsDefined ${_expectedTarget})
endif()
endforeach()
if("${_targetsDefined}" STREQUAL "${_expectedTargets}")
unset(_targetsDefined)
unset(_targetsNotDefined)
unset(_expectedTargets)
set(CMAKE_IMPORT_FILE_VERSION)
cmake_policy(POP)
return()
endif()
if(NOT "${_targetsDefined}" STREQUAL "")
message(FATAL_ERROR "Some (but not all) targets in this export set were already defined.\nTargets Defined: ${_targetsDefined}\nTargets not yet defined: ${_targetsNotDefined}\n")
endif()
unset(_targetsDefined)
unset(_targetsNotDefined)
unset(_expectedTargets)
# Compute the installation prefix relative to this file.
get_filename_component(_IMPORT_PREFIX "${CMAKE_CURRENT_LIST_FILE}" PATH)
get_filename_component(_IMPORT_PREFIX "${_IMPORT_PREFIX}" PATH)
get_filename_component(_IMPORT_PREFIX "${_IMPORT_PREFIX}" PATH)
get_filename_component(_IMPORT_PREFIX "${_IMPORT_PREFIX}" PATH)
if(_IMPORT_PREFIX STREQUAL "/")
set(_IMPORT_PREFIX "")
endif()
# Create imported target glfw
add_library(glfw STATIC IMPORTED)
set_target_properties(glfw PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${_IMPORT_PREFIX}/include"
)
# Load information for each installed configuration.
get_filename_component(_DIR "${CMAKE_CURRENT_LIST_FILE}" PATH)
file(GLOB CONFIG_FILES "${_DIR}/glfw3Targets-*.cmake")
foreach(f ${CONFIG_FILES})
include(${f})
endforeach()
# Cleanup temporary variables.
set(_IMPORT_PREFIX)
# Loop over all imported files and verify that they actually exist
foreach(target ${_IMPORT_CHECK_TARGETS} )
foreach(file ${_IMPORT_CHECK_FILES_FOR_${target}} )
if(NOT EXISTS "${file}" )
message(FATAL_ERROR "The imported target \"${target}\" references the file
\"${file}\"
but this file does not exist. Possible reasons include:
* The file was deleted, renamed, or moved to another location.
* An install or uninstall procedure did not complete successfully.
* The installation package was faulty and contained
\"${CMAKE_CURRENT_LIST_FILE}\"
but not all the files it references.
")
endif()
endforeach()
unset(_IMPORT_CHECK_FILES_FOR_${target})
endforeach()
unset(_IMPORT_CHECK_TARGETS)
# This file does not depend on other imported targets which have
# been exported from the same project but in a separate export set.
# Commands beyond this point should not need to know the version.
set(CMAKE_IMPORT_FILE_VERSION)
cmake_policy(POP)

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samples/external/GLFW/lib/glfw3.lib vendored Normal file
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samples/external/GLFW/lib/pkgconfig/glfw3.pc vendored Normal file
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prefix=C:/Users/kturkowski/ext/GLFW
exec_prefix=${prefix}
includedir=${prefix}/include
libdir=${exec_prefix}/lib
Name: GLFW
Description: A multi-platform library for OpenGL, window and input
Version: 3.2.1
URL: http://www.glfw.org/
Requires.private:
Libs: -L${libdir} -lglfw3
Libs.private: -lgdi32
Cflags: -I${includedir}

21
samples/external/Imgui/imgui-docking/LICENSE.txt vendored Normal file
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The MIT License (MIT)
Copyright (c) 2014-2021 Omar Cornut
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

478
samples/external/Imgui/imgui-docking/backends/imgui_impl_allegro5.cpp vendored Normal file
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// dear imgui: Renderer + Platform Backend for Allegro 5
// (Info: Allegro 5 is a cross-platform general purpose library for handling windows, inputs, graphics, etc.)
// Implemented features:
// [X] Renderer: User texture binding. Use 'ALLEGRO_BITMAP*' as ImTextureID. Read the FAQ about ImTextureID!
// [X] Platform: Clipboard support (from Allegro 5.1.12)
// [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
// Issues:
// [ ] Renderer: The renderer is suboptimal as we need to unindex our buffers and convert vertices manually.
// [ ] Platform: Missing gamepad support.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2021-08-17: Calling io.AddFocusEvent() on ALLEGRO_EVENT_DISPLAY_SWITCH_OUT/ALLEGRO_EVENT_DISPLAY_SWITCH_IN events.
// 2021-06-29: Reorganized backend to pull data from a single structure to facilitate usage with multiple-contexts (all g_XXXX access changed to bd->XXXX).
// 2021-05-19: Renderer: Replaced direct access to ImDrawCmd::TextureId with a call to ImDrawCmd::GetTexID(). (will become a requirement)
// 2021-02-18: Change blending equation to preserve alpha in output buffer.
// 2020-08-10: Inputs: Fixed horizontal mouse wheel direction.
// 2019-12-05: Inputs: Added support for ImGuiMouseCursor_NotAllowed mouse cursor.
// 2019-07-21: Inputs: Added mapping for ImGuiKey_KeyPadEnter.
// 2019-05-11: Inputs: Don't filter character value from ALLEGRO_EVENT_KEY_CHAR before calling AddInputCharacter().
// 2019-04-30: Renderer: Added support for special ImDrawCallback_ResetRenderState callback to reset render state.
// 2018-11-30: Platform: Added touchscreen support.
// 2018-11-30: Misc: Setting up io.BackendPlatformName/io.BackendRendererName so they can be displayed in the About Window.
// 2018-06-13: Platform: Added clipboard support (from Allegro 5.1.12).
// 2018-06-13: Renderer: Use draw_data->DisplayPos and draw_data->DisplaySize to setup projection matrix and clipping rectangle.
// 2018-06-13: Renderer: Backup/restore transform and clipping rectangle.
// 2018-06-11: Misc: Setup io.BackendFlags ImGuiBackendFlags_HasMouseCursors flag + honor ImGuiConfigFlags_NoMouseCursorChange flag.
// 2018-04-18: Misc: Renamed file from imgui_impl_a5.cpp to imgui_impl_allegro5.cpp.
// 2018-04-18: Misc: Added support for 32-bit vertex indices to avoid conversion at runtime. Added imconfig_allegro5.h to enforce 32-bit indices when included from imgui.h.
// 2018-02-16: Misc: Obsoleted the io.RenderDrawListsFn callback and exposed ImGui_ImplAllegro5_RenderDrawData() in the .h file so you can call it yourself.
// 2018-02-06: Misc: Removed call to ImGui::Shutdown() which is not available from 1.60 WIP, user needs to call CreateContext/DestroyContext themselves.
// 2018-02-06: Inputs: Added mapping for ImGuiKey_Space.
#include <stdint.h> // uint64_t
#include <cstring> // memcpy
#include "imgui.h"
#include "imgui_impl_allegro5.h"
// Allegro
#include <allegro5/allegro.h>
#include <allegro5/allegro_primitives.h>
#ifdef _WIN32
#include <allegro5/allegro_windows.h>
#endif
#define ALLEGRO_HAS_CLIPBOARD (ALLEGRO_VERSION_INT >= ((5 << 24) | (1 << 16) | (12 << 8))) // Clipboard only supported from Allegro 5.1.12
// Visual Studio warnings
#ifdef _MSC_VER
#pragma warning (disable: 4127) // condition expression is constant
#endif
// Allegro Data
struct ImGui_ImplAllegro5_Data
{
ALLEGRO_DISPLAY* Display;
ALLEGRO_BITMAP* Texture;
double Time;
ALLEGRO_MOUSE_CURSOR* MouseCursorInvisible;
ALLEGRO_VERTEX_DECL* VertexDecl;
char* ClipboardTextData;
ImGui_ImplAllegro5_Data() { memset(this, 0, sizeof(*this)); }
};
// Backend data stored in io.BackendPlatformUserData to allow support for multiple Dear ImGui contexts
// It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts.
// FIXME: multi-context support is not well tested and probably dysfunctional in this backend.
static ImGui_ImplAllegro5_Data* ImGui_ImplAllegro5_GetBackendData() { return ImGui::GetCurrentContext() ? (ImGui_ImplAllegro5_Data*)ImGui::GetIO().BackendPlatformUserData : NULL; }
struct ImDrawVertAllegro
{
ImVec2 pos;
ImVec2 uv;
ALLEGRO_COLOR col;
};
static void ImGui_ImplAllegro5_SetupRenderState(ImDrawData* draw_data)
{
// Setup blending
al_set_separate_blender(ALLEGRO_ADD, ALLEGRO_ALPHA, ALLEGRO_INVERSE_ALPHA, ALLEGRO_ADD, ALLEGRO_ONE, ALLEGRO_INVERSE_ALPHA);
// Setup orthographic projection matrix
// Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right).
{
float L = draw_data->DisplayPos.x;
float R = draw_data->DisplayPos.x + draw_data->DisplaySize.x;
float T = draw_data->DisplayPos.y;
float B = draw_data->DisplayPos.y + draw_data->DisplaySize.y;
ALLEGRO_TRANSFORM transform;
al_identity_transform(&transform);
al_use_transform(&transform);
al_orthographic_transform(&transform, L, T, 1.0f, R, B, -1.0f);
al_use_projection_transform(&transform);
}
}
// Render function.
void ImGui_ImplAllegro5_RenderDrawData(ImDrawData* draw_data)
{
// Avoid rendering when minimized
if (draw_data->DisplaySize.x <= 0.0f || draw_data->DisplaySize.y <= 0.0f)
return;
// Backup Allegro state that will be modified
ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData();
ALLEGRO_TRANSFORM last_transform = *al_get_current_transform();
ALLEGRO_TRANSFORM last_projection_transform = *al_get_current_projection_transform();
int last_clip_x, last_clip_y, last_clip_w, last_clip_h;
al_get_clipping_rectangle(&last_clip_x, &last_clip_y, &last_clip_w, &last_clip_h);
int last_blender_op, last_blender_src, last_blender_dst;
al_get_blender(&last_blender_op, &last_blender_src, &last_blender_dst);
// Setup desired render state
ImGui_ImplAllegro5_SetupRenderState(draw_data);
// Render command lists
for (int n = 0; n < draw_data->CmdListsCount; n++)
{
const ImDrawList* cmd_list = draw_data->CmdLists[n];
// Allegro's implementation of al_draw_indexed_prim() for DX9 is completely broken. Unindex our buffers ourselves.
// FIXME-OPT: Unfortunately Allegro doesn't support 32-bit packed colors so we have to convert them to 4 float as well..
static ImVector<ImDrawVertAllegro> vertices;
vertices.resize(cmd_list->IdxBuffer.Size);
for (int i = 0; i < cmd_list->IdxBuffer.Size; i++)
{
const ImDrawVert* src_v = &cmd_list->VtxBuffer[cmd_list->IdxBuffer[i]];
ImDrawVertAllegro* dst_v = &vertices[i];
dst_v->pos = src_v->pos;
dst_v->uv = src_v->uv;
unsigned char* c = (unsigned char*)&src_v->col;
dst_v->col = al_map_rgba(c[0], c[1], c[2], c[3]);
}
const int* indices = NULL;
if (sizeof(ImDrawIdx) == 2)
{
// FIXME-OPT: Unfortunately Allegro doesn't support 16-bit indices.. You can '#define ImDrawIdx int' in imconfig.h to request Dear ImGui to output 32-bit indices.
// Otherwise, we convert them from 16-bit to 32-bit at runtime here, which works perfectly but is a little wasteful.
static ImVector<int> indices_converted;
indices_converted.resize(cmd_list->IdxBuffer.Size);
for (int i = 0; i < cmd_list->IdxBuffer.Size; ++i)
indices_converted[i] = (int)cmd_list->IdxBuffer.Data[i];
indices = indices_converted.Data;
}
else if (sizeof(ImDrawIdx) == 4)
{
indices = (const int*)cmd_list->IdxBuffer.Data;
}
// Render command lists
int idx_offset = 0;
ImVec2 clip_off = draw_data->DisplayPos;
for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
{
const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i];
if (pcmd->UserCallback)
{
// User callback, registered via ImDrawList::AddCallback()
// (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
ImGui_ImplAllegro5_SetupRenderState(draw_data);
else
pcmd->UserCallback(cmd_list, pcmd);
}
else
{
// Project scissor/clipping rectangles into framebuffer space
ImVec2 clip_min(pcmd->ClipRect.x - clip_off.x, pcmd->ClipRect.y - clip_off.y);
ImVec2 clip_max(pcmd->ClipRect.z - clip_off.x, pcmd->ClipRect.w - clip_off.y);
if (clip_max.x < clip_min.x || clip_max.y < clip_min.y)
continue;
// Apply scissor/clipping rectangle, Draw
ALLEGRO_BITMAP* texture = (ALLEGRO_BITMAP*)pcmd->GetTexID();
al_set_clipping_rectangle(clip_min.x, clip_min.y, clip_max.x - clip_min.x, clip_max.y - clip_min.y);
al_draw_prim(&vertices[0], bd->VertexDecl, texture, idx_offset, idx_offset + pcmd->ElemCount, ALLEGRO_PRIM_TRIANGLE_LIST);
}
idx_offset += pcmd->ElemCount;
}
}
// Restore modified Allegro state
al_set_blender(last_blender_op, last_blender_src, last_blender_dst);
al_set_clipping_rectangle(last_clip_x, last_clip_y, last_clip_w, last_clip_h);
al_use_transform(&last_transform);
al_use_projection_transform(&last_projection_transform);
}
bool ImGui_ImplAllegro5_CreateDeviceObjects()
{
// Build texture atlas
ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData();
ImGuiIO& io = ImGui::GetIO();
unsigned char* pixels;
int width, height;
io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);
// Create texture
int flags = al_get_new_bitmap_flags();
int fmt = al_get_new_bitmap_format();
al_set_new_bitmap_flags(ALLEGRO_MEMORY_BITMAP | ALLEGRO_MIN_LINEAR | ALLEGRO_MAG_LINEAR);
al_set_new_bitmap_format(ALLEGRO_PIXEL_FORMAT_ABGR_8888_LE);
ALLEGRO_BITMAP* img = al_create_bitmap(width, height);
al_set_new_bitmap_flags(flags);
al_set_new_bitmap_format(fmt);
if (!img)
return false;
ALLEGRO_LOCKED_REGION* locked_img = al_lock_bitmap(img, al_get_bitmap_format(img), ALLEGRO_LOCK_WRITEONLY);
if (!locked_img)
{
al_destroy_bitmap(img);
return false;
}
memcpy(locked_img->data, pixels, sizeof(int) * width * height);
al_unlock_bitmap(img);
// Convert software texture to hardware texture.
ALLEGRO_BITMAP* cloned_img = al_clone_bitmap(img);
al_destroy_bitmap(img);
if (!cloned_img)
return false;
// Store our identifier
io.Fonts->SetTexID((void*)cloned_img);
bd->Texture = cloned_img;
// Create an invisible mouse cursor
// Because al_hide_mouse_cursor() seems to mess up with the actual inputs..
ALLEGRO_BITMAP* mouse_cursor = al_create_bitmap(8, 8);
bd->MouseCursorInvisible = al_create_mouse_cursor(mouse_cursor, 0, 0);
al_destroy_bitmap(mouse_cursor);
return true;
}
void ImGui_ImplAllegro5_InvalidateDeviceObjects()
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData();
if (bd->Texture)
{
io.Fonts->SetTexID(NULL);
al_destroy_bitmap(bd->Texture);
bd->Texture = NULL;
}
if (bd->MouseCursorInvisible)
{
al_destroy_mouse_cursor(bd->MouseCursorInvisible);
bd->MouseCursorInvisible = NULL;
}
}
#if ALLEGRO_HAS_CLIPBOARD
static const char* ImGui_ImplAllegro5_GetClipboardText(void*)
{
ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData();
if (bd->ClipboardTextData)
al_free(bd->ClipboardTextData);
bd->ClipboardTextData = al_get_clipboard_text(bd->Display);
return bd->ClipboardTextData;
}
static void ImGui_ImplAllegro5_SetClipboardText(void*, const char* text)
{
ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData();
al_set_clipboard_text(bd->Display, text);
}
#endif
bool ImGui_ImplAllegro5_Init(ALLEGRO_DISPLAY* display)
{
ImGuiIO& io = ImGui::GetIO();
IM_ASSERT(io.BackendPlatformUserData == NULL && "Already initialized a platform backend!");
// Setup backend capabilities flags
ImGui_ImplAllegro5_Data* bd = IM_NEW(ImGui_ImplAllegro5_Data)();
io.BackendPlatformUserData = (void*)bd;
io.BackendPlatformName = io.BackendRendererName = "imgui_impl_allegro5";
io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors; // We can honor GetMouseCursor() values (optional)
bd->Display = display;
// Create custom vertex declaration.
// Unfortunately Allegro doesn't support 32-bit packed colors so we have to convert them to 4 floats.
// We still use a custom declaration to use 'ALLEGRO_PRIM_TEX_COORD' instead of 'ALLEGRO_PRIM_TEX_COORD_PIXEL' else we can't do a reliable conversion.
ALLEGRO_VERTEX_ELEMENT elems[] =
{
{ ALLEGRO_PRIM_POSITION, ALLEGRO_PRIM_FLOAT_2, IM_OFFSETOF(ImDrawVertAllegro, pos) },
{ ALLEGRO_PRIM_TEX_COORD, ALLEGRO_PRIM_FLOAT_2, IM_OFFSETOF(ImDrawVertAllegro, uv) },
{ ALLEGRO_PRIM_COLOR_ATTR, 0, IM_OFFSETOF(ImDrawVertAllegro, col) },
{ 0, 0, 0 }
};
bd->VertexDecl = al_create_vertex_decl(elems, sizeof(ImDrawVertAllegro));
io.KeyMap[ImGuiKey_Tab] = ALLEGRO_KEY_TAB;
io.KeyMap[ImGuiKey_LeftArrow] = ALLEGRO_KEY_LEFT;
io.KeyMap[ImGuiKey_RightArrow] = ALLEGRO_KEY_RIGHT;
io.KeyMap[ImGuiKey_UpArrow] = ALLEGRO_KEY_UP;
io.KeyMap[ImGuiKey_DownArrow] = ALLEGRO_KEY_DOWN;
io.KeyMap[ImGuiKey_PageUp] = ALLEGRO_KEY_PGUP;
io.KeyMap[ImGuiKey_PageDown] = ALLEGRO_KEY_PGDN;
io.KeyMap[ImGuiKey_Home] = ALLEGRO_KEY_HOME;
io.KeyMap[ImGuiKey_End] = ALLEGRO_KEY_END;
io.KeyMap[ImGuiKey_Insert] = ALLEGRO_KEY_INSERT;
io.KeyMap[ImGuiKey_Delete] = ALLEGRO_KEY_DELETE;
io.KeyMap[ImGuiKey_Backspace] = ALLEGRO_KEY_BACKSPACE;
io.KeyMap[ImGuiKey_Space] = ALLEGRO_KEY_SPACE;
io.KeyMap[ImGuiKey_Enter] = ALLEGRO_KEY_ENTER;
io.KeyMap[ImGuiKey_Escape] = ALLEGRO_KEY_ESCAPE;
io.KeyMap[ImGuiKey_KeyPadEnter] = ALLEGRO_KEY_PAD_ENTER;
io.KeyMap[ImGuiKey_A] = ALLEGRO_KEY_A;
io.KeyMap[ImGuiKey_C] = ALLEGRO_KEY_C;
io.KeyMap[ImGuiKey_V] = ALLEGRO_KEY_V;
io.KeyMap[ImGuiKey_X] = ALLEGRO_KEY_X;
io.KeyMap[ImGuiKey_Y] = ALLEGRO_KEY_Y;
io.KeyMap[ImGuiKey_Z] = ALLEGRO_KEY_Z;
io.MousePos = ImVec2(-FLT_MAX, -FLT_MAX);
#if ALLEGRO_HAS_CLIPBOARD
io.SetClipboardTextFn = ImGui_ImplAllegro5_SetClipboardText;
io.GetClipboardTextFn = ImGui_ImplAllegro5_GetClipboardText;
io.ClipboardUserData = NULL;
#endif
return true;
}
void ImGui_ImplAllegro5_Shutdown()
{
ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData();
IM_ASSERT(bd != NULL && "No platform backend to shutdown, or already shutdown?");
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplAllegro5_InvalidateDeviceObjects();
if (bd->VertexDecl)
al_destroy_vertex_decl(bd->VertexDecl);
if (bd->ClipboardTextData)
al_free(bd->ClipboardTextData);
io.BackendPlatformUserData = NULL;
io.BackendPlatformName = io.BackendRendererName = NULL;
IM_DELETE(bd);
}
// You can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if dear imgui wants to use your inputs.
// - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application.
// - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application.
// Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags.
bool ImGui_ImplAllegro5_ProcessEvent(ALLEGRO_EVENT* ev)
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData();
switch (ev->type)
{
case ALLEGRO_EVENT_MOUSE_AXES:
if (ev->mouse.display == bd->Display)
{
io.MouseWheel += ev->mouse.dz;
io.MouseWheelH -= ev->mouse.dw;
io.MousePos = ImVec2(ev->mouse.x, ev->mouse.y);
}
return true;
case ALLEGRO_EVENT_MOUSE_BUTTON_DOWN:
case ALLEGRO_EVENT_MOUSE_BUTTON_UP:
if (ev->mouse.display == bd->Display && ev->mouse.button <= 5)
io.MouseDown[ev->mouse.button - 1] = (ev->type == ALLEGRO_EVENT_MOUSE_BUTTON_DOWN);
return true;
case ALLEGRO_EVENT_TOUCH_MOVE:
if (ev->touch.display == bd->Display)
io.MousePos = ImVec2(ev->touch.x, ev->touch.y);
return true;
case ALLEGRO_EVENT_TOUCH_BEGIN:
case ALLEGRO_EVENT_TOUCH_END:
case ALLEGRO_EVENT_TOUCH_CANCEL:
if (ev->touch.display == bd->Display && ev->touch.primary)
io.MouseDown[0] = (ev->type == ALLEGRO_EVENT_TOUCH_BEGIN);
return true;
case ALLEGRO_EVENT_MOUSE_LEAVE_DISPLAY:
if (ev->mouse.display == bd->Display)
io.MousePos = ImVec2(-FLT_MAX, -FLT_MAX);
return true;
case ALLEGRO_EVENT_KEY_CHAR:
if (ev->keyboard.display == bd->Display)
if (ev->keyboard.unichar != 0)
io.AddInputCharacter((unsigned int)ev->keyboard.unichar);
return true;
case ALLEGRO_EVENT_KEY_DOWN:
case ALLEGRO_EVENT_KEY_UP:
if (ev->keyboard.display == bd->Display)
io.KeysDown[ev->keyboard.keycode] = (ev->type == ALLEGRO_EVENT_KEY_DOWN);
return true;
case ALLEGRO_EVENT_DISPLAY_SWITCH_OUT:
if (ev->display.source == bd->Display)
io.AddFocusEvent(false);
return true;
case ALLEGRO_EVENT_DISPLAY_SWITCH_IN:
if (ev->display.source == bd->Display)
{
io.AddFocusEvent(true);
#if defined(ALLEGRO_UNSTABLE)
al_clear_keyboard_state(bd->Display);
#endif
}
return true;
}
return false;
}
static void ImGui_ImplAllegro5_UpdateMouseCursor()
{
ImGuiIO& io = ImGui::GetIO();
if (io.ConfigFlags & ImGuiConfigFlags_NoMouseCursorChange)
return;
ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData();
ImGuiMouseCursor imgui_cursor = ImGui::GetMouseCursor();
if (io.MouseDrawCursor || imgui_cursor == ImGuiMouseCursor_None)
{
// Hide OS mouse cursor if imgui is drawing it or if it wants no cursor
al_set_mouse_cursor(bd->Display, bd->MouseCursorInvisible);
}
else
{
ALLEGRO_SYSTEM_MOUSE_CURSOR cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_DEFAULT;
switch (imgui_cursor)
{
case ImGuiMouseCursor_TextInput: cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_EDIT; break;
case ImGuiMouseCursor_ResizeAll: cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_MOVE; break;
case ImGuiMouseCursor_ResizeNS: cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_RESIZE_N; break;
case ImGuiMouseCursor_ResizeEW: cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_RESIZE_E; break;
case ImGuiMouseCursor_ResizeNESW: cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_RESIZE_NE; break;
case ImGuiMouseCursor_ResizeNWSE: cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_RESIZE_NW; break;
case ImGuiMouseCursor_NotAllowed: cursor_id = ALLEGRO_SYSTEM_MOUSE_CURSOR_UNAVAILABLE; break;
}
al_set_system_mouse_cursor(bd->Display, cursor_id);
}
}
void ImGui_ImplAllegro5_NewFrame()
{
ImGui_ImplAllegro5_Data* bd = ImGui_ImplAllegro5_GetBackendData();
IM_ASSERT(bd != NULL && "Did you call ImGui_ImplAllegro5_Init()?");
if (!bd->Texture)
ImGui_ImplAllegro5_CreateDeviceObjects();
ImGuiIO& io = ImGui::GetIO();
// Setup display size (every frame to accommodate for window resizing)
int w, h;
w = al_get_display_width(bd->Display);
h = al_get_display_height(bd->Display);
io.DisplaySize = ImVec2((float)w, (float)h);
// Setup time step
double current_time = al_get_time();
io.DeltaTime = bd->Time > 0.0 ? (float)(current_time - bd->Time) : (float)(1.0f / 60.0f);
bd->Time = current_time;
// Setup inputs
ALLEGRO_KEYBOARD_STATE keys;
al_get_keyboard_state(&keys);
io.KeyCtrl = al_key_down(&keys, ALLEGRO_KEY_LCTRL) || al_key_down(&keys, ALLEGRO_KEY_RCTRL);
io.KeyShift = al_key_down(&keys, ALLEGRO_KEY_LSHIFT) || al_key_down(&keys, ALLEGRO_KEY_RSHIFT);
io.KeyAlt = al_key_down(&keys, ALLEGRO_KEY_ALT) || al_key_down(&keys, ALLEGRO_KEY_ALTGR);
io.KeySuper = al_key_down(&keys, ALLEGRO_KEY_LWIN) || al_key_down(&keys, ALLEGRO_KEY_RWIN);
ImGui_ImplAllegro5_UpdateMouseCursor();
}

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// dear imgui: Renderer + Platform Backend for Allegro 5
// (Info: Allegro 5 is a cross-platform general purpose library for handling windows, inputs, graphics, etc.)
// Implemented features:
// [X] Renderer: User texture binding. Use 'ALLEGRO_BITMAP*' as ImTextureID. Read the FAQ about ImTextureID!
// [X] Platform: Clipboard support (from Allegro 5.1.12)
// [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
// Issues:
// [ ] Renderer: The renderer is suboptimal as we need to unindex our buffers and convert vertices manually.
// [ ] Platform: Missing gamepad support.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
#pragma once
#include "imgui.h" // IMGUI_IMPL_API
struct ALLEGRO_DISPLAY;
union ALLEGRO_EVENT;
IMGUI_IMPL_API bool ImGui_ImplAllegro5_Init(ALLEGRO_DISPLAY* display);
IMGUI_IMPL_API void ImGui_ImplAllegro5_Shutdown();
IMGUI_IMPL_API void ImGui_ImplAllegro5_NewFrame();
IMGUI_IMPL_API void ImGui_ImplAllegro5_RenderDrawData(ImDrawData* draw_data);
IMGUI_IMPL_API bool ImGui_ImplAllegro5_ProcessEvent(ALLEGRO_EVENT* event);
// Use if you want to reset your rendering device without losing Dear ImGui state.
IMGUI_IMPL_API bool ImGui_ImplAllegro5_CreateDeviceObjects();
IMGUI_IMPL_API void ImGui_ImplAllegro5_InvalidateDeviceObjects();

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// dear imgui: Platform Binding for Android native app
// This needs to be used along with the OpenGL 3 Renderer (imgui_impl_opengl3)
// Implemented features:
// [X] Platform: Keyboard arrays indexed using AKEYCODE_* codes, e.g. ImGui::IsKeyPressed(AKEYCODE_SPACE).
// Missing features:
// [ ] Platform: Clipboard support.
// [ ] Platform: Gamepad support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
// [ ] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'. FIXME: Check if this is even possible with Android.
// Important:
// - FIXME: On-screen keyboard currently needs to be enabled by the application (see examples/ and issue #3446)
// - FIXME: Unicode character inputs needs to be passed by Dear ImGui by the application (see examples/ and issue #3446)
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2021-03-04: Initial version.
#include "imgui.h"
#include "imgui_impl_android.h"
#include <time.h>
#include <map>
#include <queue>
#include <android/native_window.h>
#include <android/input.h>
#include <android/keycodes.h>
#include <android/log.h>
// Android data
static double g_Time = 0.0;
static ANativeWindow* g_Window;
static char g_LogTag[] = "ImGuiExample";
static std::map<int32_t, std::queue<int32_t>> g_KeyEventQueues; // FIXME: Remove dependency on map and queue once we use upcoming input queue.
int32_t ImGui_ImplAndroid_HandleInputEvent(AInputEvent* input_event)
{
ImGuiIO& io = ImGui::GetIO();
int32_t event_type = AInputEvent_getType(input_event);
switch (event_type)
{
case AINPUT_EVENT_TYPE_KEY:
{
int32_t event_key_code = AKeyEvent_getKeyCode(input_event);
int32_t event_action = AKeyEvent_getAction(input_event);
int32_t event_meta_state = AKeyEvent_getMetaState(input_event);
io.KeyCtrl = ((event_meta_state & AMETA_CTRL_ON) != 0);
io.KeyShift = ((event_meta_state & AMETA_SHIFT_ON) != 0);
io.KeyAlt = ((event_meta_state & AMETA_ALT_ON) != 0);
switch (event_action)
{
// FIXME: AKEY_EVENT_ACTION_DOWN and AKEY_EVENT_ACTION_UP occur at once as soon as a touch pointer
// goes up from a key. We use a simple key event queue/ and process one event per key per frame in
// ImGui_ImplAndroid_NewFrame()...or consider using IO queue, if suitable: https://github.com/ocornut/imgui/issues/2787
case AKEY_EVENT_ACTION_DOWN:
case AKEY_EVENT_ACTION_UP:
g_KeyEventQueues[event_key_code].push(event_action);
break;
default:
break;
}
break;
}
case AINPUT_EVENT_TYPE_MOTION:
{
int32_t event_action = AMotionEvent_getAction(input_event);
int32_t event_pointer_index = (event_action & AMOTION_EVENT_ACTION_POINTER_INDEX_MASK) >> AMOTION_EVENT_ACTION_POINTER_INDEX_SHIFT;
event_action &= AMOTION_EVENT_ACTION_MASK;
switch (event_action)
{
case AMOTION_EVENT_ACTION_DOWN:
case AMOTION_EVENT_ACTION_UP:
// Physical mouse buttons (and probably other physical devices) also invoke the actions AMOTION_EVENT_ACTION_DOWN/_UP,
// but we have to process them separately to identify the actual button pressed. This is done below via
// AMOTION_EVENT_ACTION_BUTTON_PRESS/_RELEASE. Here, we only process "FINGER" input (and "UNKNOWN", as a fallback).
if((AMotionEvent_getToolType(input_event, event_pointer_index) == AMOTION_EVENT_TOOL_TYPE_FINGER)
|| (AMotionEvent_getToolType(input_event, event_pointer_index) == AMOTION_EVENT_TOOL_TYPE_UNKNOWN))
{
io.MouseDown[0] = (event_action == AMOTION_EVENT_ACTION_DOWN);
io.MousePos = ImVec2(AMotionEvent_getX(input_event, event_pointer_index), AMotionEvent_getY(input_event, event_pointer_index));
}
break;
case AMOTION_EVENT_ACTION_BUTTON_PRESS:
case AMOTION_EVENT_ACTION_BUTTON_RELEASE:
{
int32_t button_state = AMotionEvent_getButtonState(input_event);
io.MouseDown[0] = ((button_state & AMOTION_EVENT_BUTTON_PRIMARY) != 0);
io.MouseDown[1] = ((button_state & AMOTION_EVENT_BUTTON_SECONDARY) != 0);
io.MouseDown[2] = ((button_state & AMOTION_EVENT_BUTTON_TERTIARY) != 0);
}
break;
case AMOTION_EVENT_ACTION_HOVER_MOVE: // Hovering: Tool moves while NOT pressed (such as a physical mouse)
case AMOTION_EVENT_ACTION_MOVE: // Touch pointer moves while DOWN
io.MousePos = ImVec2(AMotionEvent_getX(input_event, event_pointer_index), AMotionEvent_getY(input_event, event_pointer_index));
break;
case AMOTION_EVENT_ACTION_SCROLL:
io.MouseWheel = AMotionEvent_getAxisValue(input_event, AMOTION_EVENT_AXIS_VSCROLL, event_pointer_index);
io.MouseWheelH = AMotionEvent_getAxisValue(input_event, AMOTION_EVENT_AXIS_HSCROLL, event_pointer_index);
break;
default:
break;
}
}
return 1;
default:
break;
}
return 0;
}
bool ImGui_ImplAndroid_Init(ANativeWindow* window)
{
g_Window = window;
g_Time = 0.0;
// Setup backend capabilities flags
ImGuiIO& io = ImGui::GetIO();
io.BackendPlatformName = "imgui_impl_android";
// Keyboard mapping. Dear ImGui will use those indices to peek into the io.KeysDown[] array.
io.KeyMap[ImGuiKey_Tab] = AKEYCODE_TAB;
io.KeyMap[ImGuiKey_LeftArrow] = AKEYCODE_DPAD_LEFT; // also covers physical keyboard arrow key
io.KeyMap[ImGuiKey_RightArrow] = AKEYCODE_DPAD_RIGHT; // also covers physical keyboard arrow key
io.KeyMap[ImGuiKey_UpArrow] = AKEYCODE_DPAD_UP; // also covers physical keyboard arrow key
io.KeyMap[ImGuiKey_DownArrow] = AKEYCODE_DPAD_DOWN; // also covers physical keyboard arrow key
io.KeyMap[ImGuiKey_PageUp] = AKEYCODE_PAGE_UP;
io.KeyMap[ImGuiKey_PageDown] = AKEYCODE_PAGE_DOWN;
io.KeyMap[ImGuiKey_Home] = AKEYCODE_MOVE_HOME;
io.KeyMap[ImGuiKey_End] = AKEYCODE_MOVE_END;
io.KeyMap[ImGuiKey_Insert] = AKEYCODE_INSERT;
io.KeyMap[ImGuiKey_Delete] = AKEYCODE_FORWARD_DEL;
io.KeyMap[ImGuiKey_Backspace] = AKEYCODE_DEL;
io.KeyMap[ImGuiKey_Space] = AKEYCODE_SPACE;
io.KeyMap[ImGuiKey_Enter] = AKEYCODE_ENTER;
io.KeyMap[ImGuiKey_Escape] = AKEYCODE_ESCAPE;
io.KeyMap[ImGuiKey_KeyPadEnter] = AKEYCODE_NUMPAD_ENTER;
io.KeyMap[ImGuiKey_A] = AKEYCODE_A;
io.KeyMap[ImGuiKey_C] = AKEYCODE_C;
io.KeyMap[ImGuiKey_V] = AKEYCODE_V;
io.KeyMap[ImGuiKey_X] = AKEYCODE_X;
io.KeyMap[ImGuiKey_Y] = AKEYCODE_Y;
io.KeyMap[ImGuiKey_Z] = AKEYCODE_Z;
return true;
}
void ImGui_ImplAndroid_Shutdown()
{
}
void ImGui_ImplAndroid_NewFrame()
{
ImGuiIO& io = ImGui::GetIO();
// Process queued key events
// FIXME: This is a workaround for multiple key event actions occurring at once (see above) and can be removed once we use upcoming input queue.
for (auto& key_queue : g_KeyEventQueues)
{
if (key_queue.second.empty())
continue;
io.KeysDown[key_queue.first] = (key_queue.second.front() == AKEY_EVENT_ACTION_DOWN);
key_queue.second.pop();
}
// Setup display size (every frame to accommodate for window resizing)
int32_t window_width = ANativeWindow_getWidth(g_Window);
int32_t window_height = ANativeWindow_getHeight(g_Window);
int display_width = window_width;
int display_height = window_height;
io.DisplaySize = ImVec2((float)window_width, (float)window_height);
if (window_width > 0 && window_height > 0)
io.DisplayFramebufferScale = ImVec2((float)display_width / window_width, (float)display_height / window_height);
// Setup time step
struct timespec current_timespec;
clock_gettime(CLOCK_MONOTONIC, &current_timespec);
double current_time = (double)(current_timespec.tv_sec) + (current_timespec.tv_nsec / 1000000000.0);
io.DeltaTime = g_Time > 0.0 ? (float)(current_time - g_Time) : (float)(1.0f / 60.0f);
g_Time = current_time;
}

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// dear imgui: Platform Binding for Android native app
// This needs to be used along with the OpenGL 3 Renderer (imgui_impl_opengl3)
// Implemented features:
// [X] Platform: Keyboard arrays indexed using AKEYCODE_* codes, e.g. ImGui::IsKeyPressed(AKEYCODE_SPACE).
// Missing features:
// [ ] Platform: Clipboard support.
// [ ] Platform: Gamepad support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
// [ ] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'. FIXME: Check if this is even possible with Android.
// Important:
// - FIXME: On-screen keyboard currently needs to be enabled by the application (see examples/ and issue #3446)
// - FIXME: Unicode character inputs needs to be passed by Dear ImGui by the application (see examples/ and issue #3446)
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
#pragma once
struct ANativeWindow;
struct AInputEvent;
IMGUI_IMPL_API bool ImGui_ImplAndroid_Init(ANativeWindow* window);
IMGUI_IMPL_API int32_t ImGui_ImplAndroid_HandleInputEvent(AInputEvent* input_event);
IMGUI_IMPL_API void ImGui_ImplAndroid_Shutdown();
IMGUI_IMPL_API void ImGui_ImplAndroid_NewFrame();

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samples/external/Imgui/imgui-docking/backends/imgui_impl_dx10.cpp vendored Normal file
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// dear imgui: Renderer Backend for DirectX10
// This needs to be used along with a Platform Backend (e.g. Win32)
// Implemented features:
// [X] Renderer: User texture binding. Use 'ID3D10ShaderResourceView*' as ImTextureID. Read the FAQ about ImTextureID!
// [X] Renderer: Multi-viewport support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
// [X] Renderer: Support for large meshes (64k+ vertices) with 16-bit indices.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2021-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
// 2021-06-29: Reorganized backend to pull data from a single structure to facilitate usage with multiple-contexts (all g_XXXX access changed to bd->XXXX).
// 2021-05-19: DirectX10: Replaced direct access to ImDrawCmd::TextureId with a call to ImDrawCmd::GetTexID(). (will become a requirement)
// 2021-02-18: DirectX10: Change blending equation to preserve alpha in output buffer.
// 2019-07-21: DirectX10: Backup, clear and restore Geometry Shader is any is bound when calling ImGui_ImplDX10_RenderDrawData().
// 2019-05-29: DirectX10: Added support for large mesh (64K+ vertices), enable ImGuiBackendFlags_RendererHasVtxOffset flag.
// 2019-04-30: DirectX10: Added support for special ImDrawCallback_ResetRenderState callback to reset render state.
// 2018-12-03: Misc: Added #pragma comment statement to automatically link with d3dcompiler.lib when using D3DCompile().
// 2018-11-30: Misc: Setting up io.BackendRendererName so it can be displayed in the About Window.
// 2018-07-13: DirectX10: Fixed unreleased resources in Init and Shutdown functions.
// 2018-06-08: Misc: Extracted imgui_impl_dx10.cpp/.h away from the old combined DX10+Win32 example.
// 2018-06-08: DirectX10: Use draw_data->DisplayPos and draw_data->DisplaySize to setup projection matrix and clipping rectangle.
// 2018-04-09: Misc: Fixed erroneous call to io.Fonts->ClearInputData() + ClearTexData() that was left in DX10 example but removed in 1.47 (Nov 2015) on other backends.
// 2018-02-16: Misc: Obsoleted the io.RenderDrawListsFn callback and exposed ImGui_ImplDX10_RenderDrawData() in the .h file so you can call it yourself.
// 2018-02-06: Misc: Removed call to ImGui::Shutdown() which is not available from 1.60 WIP, user needs to call CreateContext/DestroyContext themselves.
// 2016-05-07: DirectX10: Disabling depth-write.
#include "imgui.h"
#include "imgui_impl_dx10.h"
// DirectX
#include <stdio.h>
#include <d3d10_1.h>
#include <d3d10.h>
#include <d3dcompiler.h>
#ifdef _MSC_VER
#pragma comment(lib, "d3dcompiler") // Automatically link with d3dcompiler.lib as we are using D3DCompile() below.
#endif
// DirectX data
struct ImGui_ImplDX10_Data
{
ID3D10Device* pd3dDevice;
IDXGIFactory* pFactory;
ID3D10Buffer* pVB;
ID3D10Buffer* pIB;
ID3D10VertexShader* pVertexShader;
ID3D10InputLayout* pInputLayout;
ID3D10Buffer* pVertexConstantBuffer;
ID3D10PixelShader* pPixelShader;
ID3D10SamplerState* pFontSampler;
ID3D10ShaderResourceView* pFontTextureView;
ID3D10RasterizerState* pRasterizerState;
ID3D10BlendState* pBlendState;
ID3D10DepthStencilState* pDepthStencilState;
int VertexBufferSize;
int IndexBufferSize;
ImGui_ImplDX10_Data() { memset(this, 0, sizeof(*this)); VertexBufferSize = 5000; IndexBufferSize = 10000; }
};
struct VERTEX_CONSTANT_BUFFER
{
float mvp[4][4];
};
// Backend data stored in io.BackendRendererUserData to allow support for multiple Dear ImGui contexts
// It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts.
static ImGui_ImplDX10_Data* ImGui_ImplDX10_GetBackendData()
{
return ImGui::GetCurrentContext() ? (ImGui_ImplDX10_Data*)ImGui::GetIO().BackendRendererUserData : NULL;
}
// Forward Declarations
static void ImGui_ImplDX10_InitPlatformInterface();
static void ImGui_ImplDX10_ShutdownPlatformInterface();
// Functions
static void ImGui_ImplDX10_SetupRenderState(ImDrawData* draw_data, ID3D10Device* ctx)
{
ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData();
// Setup viewport
D3D10_VIEWPORT vp;
memset(&vp, 0, sizeof(D3D10_VIEWPORT));
vp.Width = (UINT)draw_data->DisplaySize.x;
vp.Height = (UINT)draw_data->DisplaySize.y;
vp.MinDepth = 0.0f;
vp.MaxDepth = 1.0f;
vp.TopLeftX = vp.TopLeftY = 0;
ctx->RSSetViewports(1, &vp);
// Bind shader and vertex buffers
unsigned int stride = sizeof(ImDrawVert);
unsigned int offset = 0;
ctx->IASetInputLayout(bd->pInputLayout);
ctx->IASetVertexBuffers(0, 1, &bd->pVB, &stride, &offset);
ctx->IASetIndexBuffer(bd->pIB, sizeof(ImDrawIdx) == 2 ? DXGI_FORMAT_R16_UINT : DXGI_FORMAT_R32_UINT, 0);
ctx->IASetPrimitiveTopology(D3D10_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
ctx->VSSetShader(bd->pVertexShader);
ctx->VSSetConstantBuffers(0, 1, &bd->pVertexConstantBuffer);
ctx->PSSetShader(bd->pPixelShader);
ctx->PSSetSamplers(0, 1, &bd->pFontSampler);
ctx->GSSetShader(NULL);
// Setup render state
const float blend_factor[4] = { 0.f, 0.f, 0.f, 0.f };
ctx->OMSetBlendState(bd->pBlendState, blend_factor, 0xffffffff);
ctx->OMSetDepthStencilState(bd->pDepthStencilState, 0);
ctx->RSSetState(bd->pRasterizerState);
}
// Render function
void ImGui_ImplDX10_RenderDrawData(ImDrawData* draw_data)
{
// Avoid rendering when minimized
if (draw_data->DisplaySize.x <= 0.0f || draw_data->DisplaySize.y <= 0.0f)
return;
ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData();
ID3D10Device* ctx = bd->pd3dDevice;
// Create and grow vertex/index buffers if needed
if (!bd->pVB || bd->VertexBufferSize < draw_data->TotalVtxCount)
{
if (bd->pVB) { bd->pVB->Release(); bd->pVB = NULL; }
bd->VertexBufferSize = draw_data->TotalVtxCount + 5000;
D3D10_BUFFER_DESC desc;
memset(&desc, 0, sizeof(D3D10_BUFFER_DESC));
desc.Usage = D3D10_USAGE_DYNAMIC;
desc.ByteWidth = bd->VertexBufferSize * sizeof(ImDrawVert);
desc.BindFlags = D3D10_BIND_VERTEX_BUFFER;
desc.CPUAccessFlags = D3D10_CPU_ACCESS_WRITE;
desc.MiscFlags = 0;
if (ctx->CreateBuffer(&desc, NULL, &bd->pVB) < 0)
return;
}
if (!bd->pIB || bd->IndexBufferSize < draw_data->TotalIdxCount)
{
if (bd->pIB) { bd->pIB->Release(); bd->pIB = NULL; }
bd->IndexBufferSize = draw_data->TotalIdxCount + 10000;
D3D10_BUFFER_DESC desc;
memset(&desc, 0, sizeof(D3D10_BUFFER_DESC));
desc.Usage = D3D10_USAGE_DYNAMIC;
desc.ByteWidth = bd->IndexBufferSize * sizeof(ImDrawIdx);
desc.BindFlags = D3D10_BIND_INDEX_BUFFER;
desc.CPUAccessFlags = D3D10_CPU_ACCESS_WRITE;
if (ctx->CreateBuffer(&desc, NULL, &bd->pIB) < 0)
return;
}
// Copy and convert all vertices into a single contiguous buffer
ImDrawVert* vtx_dst = NULL;
ImDrawIdx* idx_dst = NULL;
bd->pVB->Map(D3D10_MAP_WRITE_DISCARD, 0, (void**)&vtx_dst);
bd->pIB->Map(D3D10_MAP_WRITE_DISCARD, 0, (void**)&idx_dst);
for (int n = 0; n < draw_data->CmdListsCount; n++)
{
const ImDrawList* cmd_list = draw_data->CmdLists[n];
memcpy(vtx_dst, cmd_list->VtxBuffer.Data, cmd_list->VtxBuffer.Size * sizeof(ImDrawVert));
memcpy(idx_dst, cmd_list->IdxBuffer.Data, cmd_list->IdxBuffer.Size * sizeof(ImDrawIdx));
vtx_dst += cmd_list->VtxBuffer.Size;
idx_dst += cmd_list->IdxBuffer.Size;
}
bd->pVB->Unmap();
bd->pIB->Unmap();
// Setup orthographic projection matrix into our constant buffer
// Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayPos is (0,0) for single viewport apps.
{
void* mapped_resource;
if (bd->pVertexConstantBuffer->Map(D3D10_MAP_WRITE_DISCARD, 0, &mapped_resource) != S_OK)
return;
VERTEX_CONSTANT_BUFFER* constant_buffer = (VERTEX_CONSTANT_BUFFER*)mapped_resource;
float L = draw_data->DisplayPos.x;
float R = draw_data->DisplayPos.x + draw_data->DisplaySize.x;
float T = draw_data->DisplayPos.y;
float B = draw_data->DisplayPos.y + draw_data->DisplaySize.y;
float mvp[4][4] =
{
{ 2.0f/(R-L), 0.0f, 0.0f, 0.0f },
{ 0.0f, 2.0f/(T-B), 0.0f, 0.0f },
{ 0.0f, 0.0f, 0.5f, 0.0f },
{ (R+L)/(L-R), (T+B)/(B-T), 0.5f, 1.0f },
};
memcpy(&constant_buffer->mvp, mvp, sizeof(mvp));
bd->pVertexConstantBuffer->Unmap();
}
// Backup DX state that will be modified to restore it afterwards (unfortunately this is very ugly looking and verbose. Close your eyes!)
struct BACKUP_DX10_STATE
{
UINT ScissorRectsCount, ViewportsCount;
D3D10_RECT ScissorRects[D3D10_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE];
D3D10_VIEWPORT Viewports[D3D10_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE];
ID3D10RasterizerState* RS;
ID3D10BlendState* BlendState;
FLOAT BlendFactor[4];
UINT SampleMask;
UINT StencilRef;
ID3D10DepthStencilState* DepthStencilState;
ID3D10ShaderResourceView* PSShaderResource;
ID3D10SamplerState* PSSampler;
ID3D10PixelShader* PS;
ID3D10VertexShader* VS;
ID3D10GeometryShader* GS;
D3D10_PRIMITIVE_TOPOLOGY PrimitiveTopology;
ID3D10Buffer* IndexBuffer, *VertexBuffer, *VSConstantBuffer;
UINT IndexBufferOffset, VertexBufferStride, VertexBufferOffset;
DXGI_FORMAT IndexBufferFormat;
ID3D10InputLayout* InputLayout;
};
BACKUP_DX10_STATE old = {};
old.ScissorRectsCount = old.ViewportsCount = D3D10_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE;
ctx->RSGetScissorRects(&old.ScissorRectsCount, old.ScissorRects);
ctx->RSGetViewports(&old.ViewportsCount, old.Viewports);
ctx->RSGetState(&old.RS);
ctx->OMGetBlendState(&old.BlendState, old.BlendFactor, &old.SampleMask);
ctx->OMGetDepthStencilState(&old.DepthStencilState, &old.StencilRef);
ctx->PSGetShaderResources(0, 1, &old.PSShaderResource);
ctx->PSGetSamplers(0, 1, &old.PSSampler);
ctx->PSGetShader(&old.PS);
ctx->VSGetShader(&old.VS);
ctx->VSGetConstantBuffers(0, 1, &old.VSConstantBuffer);
ctx->GSGetShader(&old.GS);
ctx->IAGetPrimitiveTopology(&old.PrimitiveTopology);
ctx->IAGetIndexBuffer(&old.IndexBuffer, &old.IndexBufferFormat, &old.IndexBufferOffset);
ctx->IAGetVertexBuffers(0, 1, &old.VertexBuffer, &old.VertexBufferStride, &old.VertexBufferOffset);
ctx->IAGetInputLayout(&old.InputLayout);
// Setup desired DX state
ImGui_ImplDX10_SetupRenderState(draw_data, ctx);
// Render command lists
// (Because we merged all buffers into a single one, we maintain our own offset into them)
int global_vtx_offset = 0;
int global_idx_offset = 0;
ImVec2 clip_off = draw_data->DisplayPos;
for (int n = 0; n < draw_data->CmdListsCount; n++)
{
const ImDrawList* cmd_list = draw_data->CmdLists[n];
for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
{
const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i];
if (pcmd->UserCallback)
{
// User callback, registered via ImDrawList::AddCallback()
// (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
ImGui_ImplDX10_SetupRenderState(draw_data, ctx);
else
pcmd->UserCallback(cmd_list, pcmd);
}
else
{
// Project scissor/clipping rectangles into framebuffer space
ImVec2 clip_min(pcmd->ClipRect.x - clip_off.x, pcmd->ClipRect.y - clip_off.y);
ImVec2 clip_max(pcmd->ClipRect.z - clip_off.x, pcmd->ClipRect.w - clip_off.y);
if (clip_max.x < clip_min.x || clip_max.y < clip_min.y)
continue;
// Apply scissor/clipping rectangle
const D3D10_RECT r = { (LONG)clip_min.x, (LONG)clip_min.y, (LONG)clip_max.x, (LONG)clip_max.y };
ctx->RSSetScissorRects(1, &r);
// Bind texture, Draw
ID3D10ShaderResourceView* texture_srv = (ID3D10ShaderResourceView*)pcmd->GetTexID();
ctx->PSSetShaderResources(0, 1, &texture_srv);
ctx->DrawIndexed(pcmd->ElemCount, pcmd->IdxOffset + global_idx_offset, pcmd->VtxOffset + global_vtx_offset);
}
}
global_idx_offset += cmd_list->IdxBuffer.Size;
global_vtx_offset += cmd_list->VtxBuffer.Size;
}
// Restore modified DX state
ctx->RSSetScissorRects(old.ScissorRectsCount, old.ScissorRects);
ctx->RSSetViewports(old.ViewportsCount, old.Viewports);
ctx->RSSetState(old.RS); if (old.RS) old.RS->Release();
ctx->OMSetBlendState(old.BlendState, old.BlendFactor, old.SampleMask); if (old.BlendState) old.BlendState->Release();
ctx->OMSetDepthStencilState(old.DepthStencilState, old.StencilRef); if (old.DepthStencilState) old.DepthStencilState->Release();
ctx->PSSetShaderResources(0, 1, &old.PSShaderResource); if (old.PSShaderResource) old.PSShaderResource->Release();
ctx->PSSetSamplers(0, 1, &old.PSSampler); if (old.PSSampler) old.PSSampler->Release();
ctx->PSSetShader(old.PS); if (old.PS) old.PS->Release();
ctx->VSSetShader(old.VS); if (old.VS) old.VS->Release();
ctx->GSSetShader(old.GS); if (old.GS) old.GS->Release();
ctx->VSSetConstantBuffers(0, 1, &old.VSConstantBuffer); if (old.VSConstantBuffer) old.VSConstantBuffer->Release();
ctx->IASetPrimitiveTopology(old.PrimitiveTopology);
ctx->IASetIndexBuffer(old.IndexBuffer, old.IndexBufferFormat, old.IndexBufferOffset); if (old.IndexBuffer) old.IndexBuffer->Release();
ctx->IASetVertexBuffers(0, 1, &old.VertexBuffer, &old.VertexBufferStride, &old.VertexBufferOffset); if (old.VertexBuffer) old.VertexBuffer->Release();
ctx->IASetInputLayout(old.InputLayout); if (old.InputLayout) old.InputLayout->Release();
}
static void ImGui_ImplDX10_CreateFontsTexture()
{
// Build texture atlas
ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData();
ImGuiIO& io = ImGui::GetIO();
unsigned char* pixels;
int width, height;
io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);
// Upload texture to graphics system
{
D3D10_TEXTURE2D_DESC desc;
ZeroMemory(&desc, sizeof(desc));
desc.Width = width;
desc.Height = height;
desc.MipLevels = 1;
desc.ArraySize = 1;
desc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
desc.SampleDesc.Count = 1;
desc.Usage = D3D10_USAGE_DEFAULT;
desc.BindFlags = D3D10_BIND_SHADER_RESOURCE;
desc.CPUAccessFlags = 0;
ID3D10Texture2D* pTexture = NULL;
D3D10_SUBRESOURCE_DATA subResource;
subResource.pSysMem = pixels;
subResource.SysMemPitch = desc.Width * 4;
subResource.SysMemSlicePitch = 0;
bd->pd3dDevice->CreateTexture2D(&desc, &subResource, &pTexture);
IM_ASSERT(pTexture != NULL);
// Create texture view
D3D10_SHADER_RESOURCE_VIEW_DESC srv_desc;
ZeroMemory(&srv_desc, sizeof(srv_desc));
srv_desc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
srv_desc.ViewDimension = D3D10_SRV_DIMENSION_TEXTURE2D;
srv_desc.Texture2D.MipLevels = desc.MipLevels;
srv_desc.Texture2D.MostDetailedMip = 0;
bd->pd3dDevice->CreateShaderResourceView(pTexture, &srv_desc, &bd->pFontTextureView);
pTexture->Release();
}
// Store our identifier
io.Fonts->SetTexID((ImTextureID)bd->pFontTextureView);
// Create texture sampler
{
D3D10_SAMPLER_DESC desc;
ZeroMemory(&desc, sizeof(desc));
desc.Filter = D3D10_FILTER_MIN_MAG_MIP_LINEAR;
desc.AddressU = D3D10_TEXTURE_ADDRESS_WRAP;
desc.AddressV = D3D10_TEXTURE_ADDRESS_WRAP;
desc.AddressW = D3D10_TEXTURE_ADDRESS_WRAP;
desc.MipLODBias = 0.f;
desc.ComparisonFunc = D3D10_COMPARISON_ALWAYS;
desc.MinLOD = 0.f;
desc.MaxLOD = 0.f;
bd->pd3dDevice->CreateSamplerState(&desc, &bd->pFontSampler);
}
}
bool ImGui_ImplDX10_CreateDeviceObjects()
{
ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData();
if (!bd->pd3dDevice)
return false;
if (bd->pFontSampler)
ImGui_ImplDX10_InvalidateDeviceObjects();
// By using D3DCompile() from <d3dcompiler.h> / d3dcompiler.lib, we introduce a dependency to a given version of d3dcompiler_XX.dll (see D3DCOMPILER_DLL_A)
// If you would like to use this DX10 sample code but remove this dependency you can:
// 1) compile once, save the compiled shader blobs into a file or source code and pass them to CreateVertexShader()/CreatePixelShader() [preferred solution]
// 2) use code to detect any version of the DLL and grab a pointer to D3DCompile from the DLL.
// See https://github.com/ocornut/imgui/pull/638 for sources and details.
// Create the vertex shader
{
static const char* vertexShader =
"cbuffer vertexBuffer : register(b0) \
{\
float4x4 ProjectionMatrix; \
};\
struct VS_INPUT\
{\
float2 pos : POSITION;\
float4 col : COLOR0;\
float2 uv : TEXCOORD0;\
};\
\
struct PS_INPUT\
{\
float4 pos : SV_POSITION;\
float4 col : COLOR0;\
float2 uv : TEXCOORD0;\
};\
\
PS_INPUT main(VS_INPUT input)\
{\
PS_INPUT output;\
output.pos = mul( ProjectionMatrix, float4(input.pos.xy, 0.f, 1.f));\
output.col = input.col;\
output.uv = input.uv;\
return output;\
}";
ID3DBlob* vertexShaderBlob;
if (FAILED(D3DCompile(vertexShader, strlen(vertexShader), NULL, NULL, NULL, "main", "vs_4_0", 0, 0, &vertexShaderBlob, NULL)))
return false; // NB: Pass ID3DBlob* pErrorBlob to D3DCompile() to get error showing in (const char*)pErrorBlob->GetBufferPointer(). Make sure to Release() the blob!
if (bd->pd3dDevice->CreateVertexShader(vertexShaderBlob->GetBufferPointer(), vertexShaderBlob->GetBufferSize(), &bd->pVertexShader) != S_OK)
{
vertexShaderBlob->Release();
return false;
}
// Create the input layout
D3D10_INPUT_ELEMENT_DESC local_layout[] =
{
{ "POSITION", 0, DXGI_FORMAT_R32G32_FLOAT, 0, (UINT)IM_OFFSETOF(ImDrawVert, pos), D3D10_INPUT_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, (UINT)IM_OFFSETOF(ImDrawVert, uv), D3D10_INPUT_PER_VERTEX_DATA, 0 },
{ "COLOR", 0, DXGI_FORMAT_R8G8B8A8_UNORM, 0, (UINT)IM_OFFSETOF(ImDrawVert, col), D3D10_INPUT_PER_VERTEX_DATA, 0 },
};
if (bd->pd3dDevice->CreateInputLayout(local_layout, 3, vertexShaderBlob->GetBufferPointer(), vertexShaderBlob->GetBufferSize(), &bd->pInputLayout) != S_OK)
{
vertexShaderBlob->Release();
return false;
}
vertexShaderBlob->Release();
// Create the constant buffer
{
D3D10_BUFFER_DESC desc;
desc.ByteWidth = sizeof(VERTEX_CONSTANT_BUFFER);
desc.Usage = D3D10_USAGE_DYNAMIC;
desc.BindFlags = D3D10_BIND_CONSTANT_BUFFER;
desc.CPUAccessFlags = D3D10_CPU_ACCESS_WRITE;
desc.MiscFlags = 0;
bd->pd3dDevice->CreateBuffer(&desc, NULL, &bd->pVertexConstantBuffer);
}
}
// Create the pixel shader
{
static const char* pixelShader =
"struct PS_INPUT\
{\
float4 pos : SV_POSITION;\
float4 col : COLOR0;\
float2 uv : TEXCOORD0;\
};\
sampler sampler0;\
Texture2D texture0;\
\
float4 main(PS_INPUT input) : SV_Target\
{\
float4 out_col = input.col * texture0.Sample(sampler0, input.uv); \
return out_col; \
}";
ID3DBlob* pixelShaderBlob;
if (FAILED(D3DCompile(pixelShader, strlen(pixelShader), NULL, NULL, NULL, "main", "ps_4_0", 0, 0, &pixelShaderBlob, NULL)))
return false; // NB: Pass ID3DBlob* pErrorBlob to D3DCompile() to get error showing in (const char*)pErrorBlob->GetBufferPointer(). Make sure to Release() the blob!
if (bd->pd3dDevice->CreatePixelShader(pixelShaderBlob->GetBufferPointer(), pixelShaderBlob->GetBufferSize(), &bd->pPixelShader) != S_OK)
{
pixelShaderBlob->Release();
return false;
}
pixelShaderBlob->Release();
}
// Create the blending setup
{
D3D10_BLEND_DESC desc;
ZeroMemory(&desc, sizeof(desc));
desc.AlphaToCoverageEnable = false;
desc.BlendEnable[0] = true;
desc.SrcBlend = D3D10_BLEND_SRC_ALPHA;
desc.DestBlend = D3D10_BLEND_INV_SRC_ALPHA;
desc.BlendOp = D3D10_BLEND_OP_ADD;
desc.SrcBlendAlpha = D3D10_BLEND_ONE;
desc.DestBlendAlpha = D3D10_BLEND_INV_SRC_ALPHA;
desc.BlendOpAlpha = D3D10_BLEND_OP_ADD;
desc.RenderTargetWriteMask[0] = D3D10_COLOR_WRITE_ENABLE_ALL;
bd->pd3dDevice->CreateBlendState(&desc, &bd->pBlendState);
}
// Create the rasterizer state
{
D3D10_RASTERIZER_DESC desc;
ZeroMemory(&desc, sizeof(desc));
desc.FillMode = D3D10_FILL_SOLID;
desc.CullMode = D3D10_CULL_NONE;
desc.ScissorEnable = true;
desc.DepthClipEnable = true;
bd->pd3dDevice->CreateRasterizerState(&desc, &bd->pRasterizerState);
}
// Create depth-stencil State
{
D3D10_DEPTH_STENCIL_DESC desc;
ZeroMemory(&desc, sizeof(desc));
desc.DepthEnable = false;
desc.DepthWriteMask = D3D10_DEPTH_WRITE_MASK_ALL;
desc.DepthFunc = D3D10_COMPARISON_ALWAYS;
desc.StencilEnable = false;
desc.FrontFace.StencilFailOp = desc.FrontFace.StencilDepthFailOp = desc.FrontFace.StencilPassOp = D3D10_STENCIL_OP_KEEP;
desc.FrontFace.StencilFunc = D3D10_COMPARISON_ALWAYS;
desc.BackFace = desc.FrontFace;
bd->pd3dDevice->CreateDepthStencilState(&desc, &bd->pDepthStencilState);
}
ImGui_ImplDX10_CreateFontsTexture();
return true;
}
void ImGui_ImplDX10_InvalidateDeviceObjects()
{
ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData();
if (!bd->pd3dDevice)
return;
if (bd->pFontSampler) { bd->pFontSampler->Release(); bd->pFontSampler = NULL; }
if (bd->pFontTextureView) { bd->pFontTextureView->Release(); bd->pFontTextureView = NULL; ImGui::GetIO().Fonts->SetTexID(NULL); } // We copied bd->pFontTextureView to io.Fonts->TexID so let's clear that as well.
if (bd->pIB) { bd->pIB->Release(); bd->pIB = NULL; }
if (bd->pVB) { bd->pVB->Release(); bd->pVB = NULL; }
if (bd->pBlendState) { bd->pBlendState->Release(); bd->pBlendState = NULL; }
if (bd->pDepthStencilState) { bd->pDepthStencilState->Release(); bd->pDepthStencilState = NULL; }
if (bd->pRasterizerState) { bd->pRasterizerState->Release(); bd->pRasterizerState = NULL; }
if (bd->pPixelShader) { bd->pPixelShader->Release(); bd->pPixelShader = NULL; }
if (bd->pVertexConstantBuffer) { bd->pVertexConstantBuffer->Release(); bd->pVertexConstantBuffer = NULL; }
if (bd->pInputLayout) { bd->pInputLayout->Release(); bd->pInputLayout = NULL; }
if (bd->pVertexShader) { bd->pVertexShader->Release(); bd->pVertexShader = NULL; }
}
bool ImGui_ImplDX10_Init(ID3D10Device* device)
{
ImGuiIO& io = ImGui::GetIO();
IM_ASSERT(io.BackendRendererUserData == NULL && "Already initialized a renderer backend!");
// Setup backend capabilities flags
ImGui_ImplDX10_Data* bd = IM_NEW(ImGui_ImplDX10_Data)();
io.BackendRendererUserData = (void*)bd;
io.BackendRendererName = "imgui_impl_dx10";
io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset; // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
io.BackendFlags |= ImGuiBackendFlags_RendererHasViewports; // We can create multi-viewports on the Renderer side (optional)
// Get factory from device
IDXGIDevice* pDXGIDevice = NULL;
IDXGIAdapter* pDXGIAdapter = NULL;
IDXGIFactory* pFactory = NULL;
if (device->QueryInterface(IID_PPV_ARGS(&pDXGIDevice)) == S_OK)
if (pDXGIDevice->GetParent(IID_PPV_ARGS(&pDXGIAdapter)) == S_OK)
if (pDXGIAdapter->GetParent(IID_PPV_ARGS(&pFactory)) == S_OK)
{
bd->pd3dDevice = device;
bd->pFactory = pFactory;
}
if (pDXGIDevice) pDXGIDevice->Release();
if (pDXGIAdapter) pDXGIAdapter->Release();
bd->pd3dDevice->AddRef();
if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
ImGui_ImplDX10_InitPlatformInterface();
return true;
}
void ImGui_ImplDX10_Shutdown()
{
ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData();
IM_ASSERT(bd != NULL && "No renderer backend to shutdown, or already shutdown?");
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplDX10_ShutdownPlatformInterface();
ImGui_ImplDX10_InvalidateDeviceObjects();
if (bd->pFactory) { bd->pFactory->Release(); }
if (bd->pd3dDevice) { bd->pd3dDevice->Release(); }
io.BackendRendererName = NULL;
io.BackendRendererUserData = NULL;
IM_DELETE(bd);
}
void ImGui_ImplDX10_NewFrame()
{
ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData();
IM_ASSERT(bd != NULL && "Did you call ImGui_ImplDX10_Init()?");
if (!bd->pFontSampler)
ImGui_ImplDX10_CreateDeviceObjects();
}
//--------------------------------------------------------------------------------------------------------
// MULTI-VIEWPORT / PLATFORM INTERFACE SUPPORT
// This is an _advanced_ and _optional_ feature, allowing the backend to create and handle multiple viewports simultaneously.
// If you are new to dear imgui or creating a new binding for dear imgui, it is recommended that you completely ignore this section first..
//--------------------------------------------------------------------------------------------------------
// Helper structure we store in the void* RenderUserData field of each ImGuiViewport to easily retrieve our backend data.
struct ImGui_ImplDX10_ViewportData
{
IDXGISwapChain* SwapChain;
ID3D10RenderTargetView* RTView;
ImGui_ImplDX10_ViewportData() { SwapChain = NULL; RTView = NULL; }
~ImGui_ImplDX10_ViewportData() { IM_ASSERT(SwapChain == NULL && RTView == NULL); }
};
static void ImGui_ImplDX10_CreateWindow(ImGuiViewport* viewport)
{
ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData();
ImGui_ImplDX10_ViewportData* vd = IM_NEW(ImGui_ImplDX10_ViewportData)();
viewport->RendererUserData = vd;
// PlatformHandleRaw should always be a HWND, whereas PlatformHandle might be a higher-level handle (e.g. GLFWWindow*, SDL_Window*).
// Some backends will leave PlatformHandleRaw NULL, in which case we assume PlatformHandle will contain the HWND.
HWND hwnd = viewport->PlatformHandleRaw ? (HWND)viewport->PlatformHandleRaw : (HWND)viewport->PlatformHandle;
IM_ASSERT(hwnd != 0);
// Create swap chain
DXGI_SWAP_CHAIN_DESC sd;
ZeroMemory(&sd, sizeof(sd));
sd.BufferDesc.Width = (UINT)viewport->Size.x;
sd.BufferDesc.Height = (UINT)viewport->Size.y;
sd.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
sd.SampleDesc.Count = 1;
sd.SampleDesc.Quality = 0;
sd.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
sd.BufferCount = 1;
sd.OutputWindow = hwnd;
sd.Windowed = TRUE;
sd.SwapEffect = DXGI_SWAP_EFFECT_DISCARD;
sd.Flags = 0;
IM_ASSERT(vd->SwapChain == NULL && vd->RTView == NULL);
bd->pFactory->CreateSwapChain(bd->pd3dDevice, &sd, &vd->SwapChain);
// Create the render target
if (vd->SwapChain)
{
ID3D10Texture2D* pBackBuffer;
vd->SwapChain->GetBuffer(0, IID_PPV_ARGS(&pBackBuffer));
bd->pd3dDevice->CreateRenderTargetView(pBackBuffer, NULL, &vd->RTView);
pBackBuffer->Release();
}
}
static void ImGui_ImplDX10_DestroyWindow(ImGuiViewport* viewport)
{
// The main viewport (owned by the application) will always have RendererUserData == NULL here since we didn't create the data for it.
if (ImGui_ImplDX10_ViewportData* vd = (ImGui_ImplDX10_ViewportData*)viewport->RendererUserData)
{
if (vd->SwapChain)
vd->SwapChain->Release();
vd->SwapChain = NULL;
if (vd->RTView)
vd->RTView->Release();
vd->RTView = NULL;
IM_DELETE(vd);
}
viewport->RendererUserData = NULL;
}
static void ImGui_ImplDX10_SetWindowSize(ImGuiViewport* viewport, ImVec2 size)
{
ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData();
ImGui_ImplDX10_ViewportData* vd = (ImGui_ImplDX10_ViewportData*)viewport->RendererUserData;
if (vd->RTView)
{
vd->RTView->Release();
vd->RTView = NULL;
}
if (vd->SwapChain)
{
ID3D10Texture2D* pBackBuffer = NULL;
vd->SwapChain->ResizeBuffers(0, (UINT)size.x, (UINT)size.y, DXGI_FORMAT_UNKNOWN, 0);
vd->SwapChain->GetBuffer(0, IID_PPV_ARGS(&pBackBuffer));
if (pBackBuffer == NULL) { fprintf(stderr, "ImGui_ImplDX10_SetWindowSize() failed creating buffers.\n"); return; }
bd->pd3dDevice->CreateRenderTargetView(pBackBuffer, NULL, &vd->RTView);
pBackBuffer->Release();
}
}
static void ImGui_ImplDX10_RenderViewport(ImGuiViewport* viewport, void*)
{
ImGui_ImplDX10_Data* bd = ImGui_ImplDX10_GetBackendData();
ImGui_ImplDX10_ViewportData* vd = (ImGui_ImplDX10_ViewportData*)viewport->RendererUserData;
ImVec4 clear_color = ImVec4(0.0f, 0.0f, 0.0f, 1.0f);
bd->pd3dDevice->OMSetRenderTargets(1, &vd->RTView, NULL);
if (!(viewport->Flags & ImGuiViewportFlags_NoRendererClear))
bd->pd3dDevice->ClearRenderTargetView(vd->RTView, (float*)&clear_color);
ImGui_ImplDX10_RenderDrawData(viewport->DrawData);
}
static void ImGui_ImplDX10_SwapBuffers(ImGuiViewport* viewport, void*)
{
ImGui_ImplDX10_ViewportData* vd = (ImGui_ImplDX10_ViewportData*)viewport->RendererUserData;
vd->SwapChain->Present(0, 0); // Present without vsync
}
void ImGui_ImplDX10_InitPlatformInterface()
{
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
platform_io.Renderer_CreateWindow = ImGui_ImplDX10_CreateWindow;
platform_io.Renderer_DestroyWindow = ImGui_ImplDX10_DestroyWindow;
platform_io.Renderer_SetWindowSize = ImGui_ImplDX10_SetWindowSize;
platform_io.Renderer_RenderWindow = ImGui_ImplDX10_RenderViewport;
platform_io.Renderer_SwapBuffers = ImGui_ImplDX10_SwapBuffers;
}
void ImGui_ImplDX10_ShutdownPlatformInterface()
{
ImGui::DestroyPlatformWindows();
}

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// dear imgui: Renderer Backend for DirectX10
// This needs to be used along with a Platform Backend (e.g. Win32)
// Implemented features:
// [X] Renderer: User texture binding. Use 'ID3D10ShaderResourceView*' as ImTextureID. Read the FAQ about ImTextureID!
// [X] Renderer: Multi-viewport support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
// [X] Renderer: Support for large meshes (64k+ vertices) with 16-bit indices.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
#pragma once
#include "imgui.h" // IMGUI_IMPL_API
struct ID3D10Device;
IMGUI_IMPL_API bool ImGui_ImplDX10_Init(ID3D10Device* device);
IMGUI_IMPL_API void ImGui_ImplDX10_Shutdown();
IMGUI_IMPL_API void ImGui_ImplDX10_NewFrame();
IMGUI_IMPL_API void ImGui_ImplDX10_RenderDrawData(ImDrawData* draw_data);
// Use if you want to reset your rendering device without losing Dear ImGui state.
IMGUI_IMPL_API void ImGui_ImplDX10_InvalidateDeviceObjects();
IMGUI_IMPL_API bool ImGui_ImplDX10_CreateDeviceObjects();

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// dear imgui: Renderer Backend for DirectX11
// This needs to be used along with a Platform Backend (e.g. Win32)
// Implemented features:
// [X] Renderer: User texture binding. Use 'ID3D11ShaderResourceView*' as ImTextureID. Read the FAQ about ImTextureID!
// [X] Renderer: Multi-viewport support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
// [X] Renderer: Support for large meshes (64k+ vertices) with 16-bit indices.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2021-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
// 2021-06-29: Reorganized backend to pull data from a single structure to facilitate usage with multiple-contexts (all g_XXXX access changed to bd->XXXX).
// 2021-05-19: DirectX11: Replaced direct access to ImDrawCmd::TextureId with a call to ImDrawCmd::GetTexID(). (will become a requirement)
// 2021-02-18: DirectX11: Change blending equation to preserve alpha in output buffer.
// 2019-08-01: DirectX11: Fixed code querying the Geometry Shader state (would generally error with Debug layer enabled).
// 2019-07-21: DirectX11: Backup, clear and restore Geometry Shader is any is bound when calling ImGui_ImplDX10_RenderDrawData. Clearing Hull/Domain/Compute shaders without backup/restore.
// 2019-05-29: DirectX11: Added support for large mesh (64K+ vertices), enable ImGuiBackendFlags_RendererHasVtxOffset flag.
// 2019-04-30: DirectX11: Added support for special ImDrawCallback_ResetRenderState callback to reset render state.
// 2018-12-03: Misc: Added #pragma comment statement to automatically link with d3dcompiler.lib when using D3DCompile().
// 2018-11-30: Misc: Setting up io.BackendRendererName so it can be displayed in the About Window.
// 2018-08-01: DirectX11: Querying for IDXGIFactory instead of IDXGIFactory1 to increase compatibility.
// 2018-07-13: DirectX11: Fixed unreleased resources in Init and Shutdown functions.
// 2018-06-08: Misc: Extracted imgui_impl_dx11.cpp/.h away from the old combined DX11+Win32 example.
// 2018-06-08: DirectX11: Use draw_data->DisplayPos and draw_data->DisplaySize to setup projection matrix and clipping rectangle.
// 2018-02-16: Misc: Obsoleted the io.RenderDrawListsFn callback and exposed ImGui_ImplDX11_RenderDrawData() in the .h file so you can call it yourself.
// 2018-02-06: Misc: Removed call to ImGui::Shutdown() which is not available from 1.60 WIP, user needs to call CreateContext/DestroyContext themselves.
// 2016-05-07: DirectX11: Disabling depth-write.
#include "imgui.h"
#include "imgui_impl_dx11.h"
// DirectX
#include <stdio.h>
#include <d3d11.h>
#include <d3dcompiler.h>
#ifdef _MSC_VER
#pragma comment(lib, "d3dcompiler") // Automatically link with d3dcompiler.lib as we are using D3DCompile() below.
#endif
// DirectX11 data
struct ImGui_ImplDX11_Data
{
ID3D11Device* pd3dDevice;
ID3D11DeviceContext* pd3dDeviceContext;
IDXGIFactory* pFactory;
ID3D11Buffer* pVB;
ID3D11Buffer* pIB;
ID3D11VertexShader* pVertexShader;
ID3D11InputLayout* pInputLayout;
ID3D11Buffer* pVertexConstantBuffer;
ID3D11PixelShader* pPixelShader;
ID3D11SamplerState* pFontSampler;
ID3D11ShaderResourceView* pFontTextureView;
ID3D11RasterizerState* pRasterizerState;
ID3D11BlendState* pBlendState;
ID3D11DepthStencilState* pDepthStencilState;
int VertexBufferSize;
int IndexBufferSize;
ImGui_ImplDX11_Data() { memset(this, 0, sizeof(*this)); VertexBufferSize = 5000; IndexBufferSize = 10000; }
};
struct VERTEX_CONSTANT_BUFFER
{
float mvp[4][4];
};
// Backend data stored in io.BackendRendererUserData to allow support for multiple Dear ImGui contexts
// It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts.
static ImGui_ImplDX11_Data* ImGui_ImplDX11_GetBackendData()
{
return ImGui::GetCurrentContext() ? (ImGui_ImplDX11_Data*)ImGui::GetIO().BackendRendererUserData : NULL;
}
// Forward Declarations
static void ImGui_ImplDX11_InitPlatformInterface();
static void ImGui_ImplDX11_ShutdownPlatformInterface();
// Functions
static void ImGui_ImplDX11_SetupRenderState(ImDrawData* draw_data, ID3D11DeviceContext* ctx)
{
ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
// Setup viewport
D3D11_VIEWPORT vp;
memset(&vp, 0, sizeof(D3D11_VIEWPORT));
vp.Width = draw_data->DisplaySize.x;
vp.Height = draw_data->DisplaySize.y;
vp.MinDepth = 0.0f;
vp.MaxDepth = 1.0f;
vp.TopLeftX = vp.TopLeftY = 0;
ctx->RSSetViewports(1, &vp);
// Setup shader and vertex buffers
unsigned int stride = sizeof(ImDrawVert);
unsigned int offset = 0;
ctx->IASetInputLayout(bd->pInputLayout);
ctx->IASetVertexBuffers(0, 1, &bd->pVB, &stride, &offset);
ctx->IASetIndexBuffer(bd->pIB, sizeof(ImDrawIdx) == 2 ? DXGI_FORMAT_R16_UINT : DXGI_FORMAT_R32_UINT, 0);
ctx->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
ctx->VSSetShader(bd->pVertexShader, NULL, 0);
ctx->VSSetConstantBuffers(0, 1, &bd->pVertexConstantBuffer);
ctx->PSSetShader(bd->pPixelShader, NULL, 0);
ctx->PSSetSamplers(0, 1, &bd->pFontSampler);
ctx->GSSetShader(NULL, NULL, 0);
ctx->HSSetShader(NULL, NULL, 0); // In theory we should backup and restore this as well.. very infrequently used..
ctx->DSSetShader(NULL, NULL, 0); // In theory we should backup and restore this as well.. very infrequently used..
ctx->CSSetShader(NULL, NULL, 0); // In theory we should backup and restore this as well.. very infrequently used..
// Setup blend state
const float blend_factor[4] = { 0.f, 0.f, 0.f, 0.f };
ctx->OMSetBlendState(bd->pBlendState, blend_factor, 0xffffffff);
ctx->OMSetDepthStencilState(bd->pDepthStencilState, 0);
ctx->RSSetState(bd->pRasterizerState);
}
// Render function
void ImGui_ImplDX11_RenderDrawData(ImDrawData* draw_data)
{
// Avoid rendering when minimized
if (draw_data->DisplaySize.x <= 0.0f || draw_data->DisplaySize.y <= 0.0f)
return;
ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
ID3D11DeviceContext* ctx = bd->pd3dDeviceContext;
// Create and grow vertex/index buffers if needed
if (!bd->pVB || bd->VertexBufferSize < draw_data->TotalVtxCount)
{
if (bd->pVB) { bd->pVB->Release(); bd->pVB = NULL; }
bd->VertexBufferSize = draw_data->TotalVtxCount + 5000;
D3D11_BUFFER_DESC desc;
memset(&desc, 0, sizeof(D3D11_BUFFER_DESC));
desc.Usage = D3D11_USAGE_DYNAMIC;
desc.ByteWidth = bd->VertexBufferSize * sizeof(ImDrawVert);
desc.BindFlags = D3D11_BIND_VERTEX_BUFFER;
desc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
desc.MiscFlags = 0;
if (bd->pd3dDevice->CreateBuffer(&desc, NULL, &bd->pVB) < 0)
return;
}
if (!bd->pIB || bd->IndexBufferSize < draw_data->TotalIdxCount)
{
if (bd->pIB) { bd->pIB->Release(); bd->pIB = NULL; }
bd->IndexBufferSize = draw_data->TotalIdxCount + 10000;
D3D11_BUFFER_DESC desc;
memset(&desc, 0, sizeof(D3D11_BUFFER_DESC));
desc.Usage = D3D11_USAGE_DYNAMIC;
desc.ByteWidth = bd->IndexBufferSize * sizeof(ImDrawIdx);
desc.BindFlags = D3D11_BIND_INDEX_BUFFER;
desc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
if (bd->pd3dDevice->CreateBuffer(&desc, NULL, &bd->pIB) < 0)
return;
}
// Upload vertex/index data into a single contiguous GPU buffer
D3D11_MAPPED_SUBRESOURCE vtx_resource, idx_resource;
if (ctx->Map(bd->pVB, 0, D3D11_MAP_WRITE_DISCARD, 0, &vtx_resource) != S_OK)
return;
if (ctx->Map(bd->pIB, 0, D3D11_MAP_WRITE_DISCARD, 0, &idx_resource) != S_OK)
return;
ImDrawVert* vtx_dst = (ImDrawVert*)vtx_resource.pData;
ImDrawIdx* idx_dst = (ImDrawIdx*)idx_resource.pData;
for (int n = 0; n < draw_data->CmdListsCount; n++)
{
const ImDrawList* cmd_list = draw_data->CmdLists[n];
memcpy(vtx_dst, cmd_list->VtxBuffer.Data, cmd_list->VtxBuffer.Size * sizeof(ImDrawVert));
memcpy(idx_dst, cmd_list->IdxBuffer.Data, cmd_list->IdxBuffer.Size * sizeof(ImDrawIdx));
vtx_dst += cmd_list->VtxBuffer.Size;
idx_dst += cmd_list->IdxBuffer.Size;
}
ctx->Unmap(bd->pVB, 0);
ctx->Unmap(bd->pIB, 0);
// Setup orthographic projection matrix into our constant buffer
// Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayPos is (0,0) for single viewport apps.
{
D3D11_MAPPED_SUBRESOURCE mapped_resource;
if (ctx->Map(bd->pVertexConstantBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &mapped_resource) != S_OK)
return;
VERTEX_CONSTANT_BUFFER* constant_buffer = (VERTEX_CONSTANT_BUFFER*)mapped_resource.pData;
float L = draw_data->DisplayPos.x;
float R = draw_data->DisplayPos.x + draw_data->DisplaySize.x;
float T = draw_data->DisplayPos.y;
float B = draw_data->DisplayPos.y + draw_data->DisplaySize.y;
float mvp[4][4] =
{
{ 2.0f/(R-L), 0.0f, 0.0f, 0.0f },
{ 0.0f, 2.0f/(T-B), 0.0f, 0.0f },
{ 0.0f, 0.0f, 0.5f, 0.0f },
{ (R+L)/(L-R), (T+B)/(B-T), 0.5f, 1.0f },
};
memcpy(&constant_buffer->mvp, mvp, sizeof(mvp));
ctx->Unmap(bd->pVertexConstantBuffer, 0);
}
// Backup DX state that will be modified to restore it afterwards (unfortunately this is very ugly looking and verbose. Close your eyes!)
struct BACKUP_DX11_STATE
{
UINT ScissorRectsCount, ViewportsCount;
D3D11_RECT ScissorRects[D3D11_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE];
D3D11_VIEWPORT Viewports[D3D11_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE];
ID3D11RasterizerState* RS;
ID3D11BlendState* BlendState;
FLOAT BlendFactor[4];
UINT SampleMask;
UINT StencilRef;
ID3D11DepthStencilState* DepthStencilState;
ID3D11ShaderResourceView* PSShaderResource;
ID3D11SamplerState* PSSampler;
ID3D11PixelShader* PS;
ID3D11VertexShader* VS;
ID3D11GeometryShader* GS;
UINT PSInstancesCount, VSInstancesCount, GSInstancesCount;
ID3D11ClassInstance *PSInstances[256], *VSInstances[256], *GSInstances[256]; // 256 is max according to PSSetShader documentation
D3D11_PRIMITIVE_TOPOLOGY PrimitiveTopology;
ID3D11Buffer* IndexBuffer, *VertexBuffer, *VSConstantBuffer;
UINT IndexBufferOffset, VertexBufferStride, VertexBufferOffset;
DXGI_FORMAT IndexBufferFormat;
ID3D11InputLayout* InputLayout;
};
BACKUP_DX11_STATE old = {};
old.ScissorRectsCount = old.ViewportsCount = D3D11_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE;
ctx->RSGetScissorRects(&old.ScissorRectsCount, old.ScissorRects);
ctx->RSGetViewports(&old.ViewportsCount, old.Viewports);
ctx->RSGetState(&old.RS);
ctx->OMGetBlendState(&old.BlendState, old.BlendFactor, &old.SampleMask);
ctx->OMGetDepthStencilState(&old.DepthStencilState, &old.StencilRef);
ctx->PSGetShaderResources(0, 1, &old.PSShaderResource);
ctx->PSGetSamplers(0, 1, &old.PSSampler);
old.PSInstancesCount = old.VSInstancesCount = old.GSInstancesCount = 256;
ctx->PSGetShader(&old.PS, old.PSInstances, &old.PSInstancesCount);
ctx->VSGetShader(&old.VS, old.VSInstances, &old.VSInstancesCount);
ctx->VSGetConstantBuffers(0, 1, &old.VSConstantBuffer);
ctx->GSGetShader(&old.GS, old.GSInstances, &old.GSInstancesCount);
ctx->IAGetPrimitiveTopology(&old.PrimitiveTopology);
ctx->IAGetIndexBuffer(&old.IndexBuffer, &old.IndexBufferFormat, &old.IndexBufferOffset);
ctx->IAGetVertexBuffers(0, 1, &old.VertexBuffer, &old.VertexBufferStride, &old.VertexBufferOffset);
ctx->IAGetInputLayout(&old.InputLayout);
// Setup desired DX state
ImGui_ImplDX11_SetupRenderState(draw_data, ctx);
// Render command lists
// (Because we merged all buffers into a single one, we maintain our own offset into them)
int global_idx_offset = 0;
int global_vtx_offset = 0;
ImVec2 clip_off = draw_data->DisplayPos;
for (int n = 0; n < draw_data->CmdListsCount; n++)
{
const ImDrawList* cmd_list = draw_data->CmdLists[n];
for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
{
const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i];
if (pcmd->UserCallback != NULL)
{
// User callback, registered via ImDrawList::AddCallback()
// (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
ImGui_ImplDX11_SetupRenderState(draw_data, ctx);
else
pcmd->UserCallback(cmd_list, pcmd);
}
else
{
// Project scissor/clipping rectangles into framebuffer space
ImVec2 clip_min(pcmd->ClipRect.x - clip_off.x, pcmd->ClipRect.y - clip_off.y);
ImVec2 clip_max(pcmd->ClipRect.z - clip_off.x, pcmd->ClipRect.w - clip_off.y);
if (clip_max.x < clip_min.x || clip_max.y < clip_min.y)
continue;
// Apply scissor/clipping rectangle
const D3D11_RECT r = { (LONG)clip_min.x, (LONG)clip_min.y, (LONG)clip_max.x, (LONG)clip_max.y };
ctx->RSSetScissorRects(1, &r);
// Bind texture, Draw
ID3D11ShaderResourceView* texture_srv = (ID3D11ShaderResourceView*)pcmd->GetTexID();
ctx->PSSetShaderResources(0, 1, &texture_srv);
ctx->DrawIndexed(pcmd->ElemCount, pcmd->IdxOffset + global_idx_offset, pcmd->VtxOffset + global_vtx_offset);
}
}
global_idx_offset += cmd_list->IdxBuffer.Size;
global_vtx_offset += cmd_list->VtxBuffer.Size;
}
// Restore modified DX state
ctx->RSSetScissorRects(old.ScissorRectsCount, old.ScissorRects);
ctx->RSSetViewports(old.ViewportsCount, old.Viewports);
ctx->RSSetState(old.RS); if (old.RS) old.RS->Release();
ctx->OMSetBlendState(old.BlendState, old.BlendFactor, old.SampleMask); if (old.BlendState) old.BlendState->Release();
ctx->OMSetDepthStencilState(old.DepthStencilState, old.StencilRef); if (old.DepthStencilState) old.DepthStencilState->Release();
ctx->PSSetShaderResources(0, 1, &old.PSShaderResource); if (old.PSShaderResource) old.PSShaderResource->Release();
ctx->PSSetSamplers(0, 1, &old.PSSampler); if (old.PSSampler) old.PSSampler->Release();
ctx->PSSetShader(old.PS, old.PSInstances, old.PSInstancesCount); if (old.PS) old.PS->Release();
for (UINT i = 0; i < old.PSInstancesCount; i++) if (old.PSInstances[i]) old.PSInstances[i]->Release();
ctx->VSSetShader(old.VS, old.VSInstances, old.VSInstancesCount); if (old.VS) old.VS->Release();
ctx->VSSetConstantBuffers(0, 1, &old.VSConstantBuffer); if (old.VSConstantBuffer) old.VSConstantBuffer->Release();
ctx->GSSetShader(old.GS, old.GSInstances, old.GSInstancesCount); if (old.GS) old.GS->Release();
for (UINT i = 0; i < old.VSInstancesCount; i++) if (old.VSInstances[i]) old.VSInstances[i]->Release();
ctx->IASetPrimitiveTopology(old.PrimitiveTopology);
ctx->IASetIndexBuffer(old.IndexBuffer, old.IndexBufferFormat, old.IndexBufferOffset); if (old.IndexBuffer) old.IndexBuffer->Release();
ctx->IASetVertexBuffers(0, 1, &old.VertexBuffer, &old.VertexBufferStride, &old.VertexBufferOffset); if (old.VertexBuffer) old.VertexBuffer->Release();
ctx->IASetInputLayout(old.InputLayout); if (old.InputLayout) old.InputLayout->Release();
}
static void ImGui_ImplDX11_CreateFontsTexture()
{
// Build texture atlas
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
unsigned char* pixels;
int width, height;
io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);
// Upload texture to graphics system
{
D3D11_TEXTURE2D_DESC desc;
ZeroMemory(&desc, sizeof(desc));
desc.Width = width;
desc.Height = height;
desc.MipLevels = 1;
desc.ArraySize = 1;
desc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
desc.SampleDesc.Count = 1;
desc.Usage = D3D11_USAGE_DEFAULT;
desc.BindFlags = D3D11_BIND_SHADER_RESOURCE;
desc.CPUAccessFlags = 0;
ID3D11Texture2D* pTexture = NULL;
D3D11_SUBRESOURCE_DATA subResource;
subResource.pSysMem = pixels;
subResource.SysMemPitch = desc.Width * 4;
subResource.SysMemSlicePitch = 0;
bd->pd3dDevice->CreateTexture2D(&desc, &subResource, &pTexture);
IM_ASSERT(pTexture != NULL);
// Create texture view
D3D11_SHADER_RESOURCE_VIEW_DESC srvDesc;
ZeroMemory(&srvDesc, sizeof(srvDesc));
srvDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
srvDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2D;
srvDesc.Texture2D.MipLevels = desc.MipLevels;
srvDesc.Texture2D.MostDetailedMip = 0;
bd->pd3dDevice->CreateShaderResourceView(pTexture, &srvDesc, &bd->pFontTextureView);
pTexture->Release();
}
// Store our identifier
io.Fonts->SetTexID((ImTextureID)bd->pFontTextureView);
// Create texture sampler
{
D3D11_SAMPLER_DESC desc;
ZeroMemory(&desc, sizeof(desc));
desc.Filter = D3D11_FILTER_MIN_MAG_MIP_LINEAR;
desc.AddressU = D3D11_TEXTURE_ADDRESS_WRAP;
desc.AddressV = D3D11_TEXTURE_ADDRESS_WRAP;
desc.AddressW = D3D11_TEXTURE_ADDRESS_WRAP;
desc.MipLODBias = 0.f;
desc.ComparisonFunc = D3D11_COMPARISON_ALWAYS;
desc.MinLOD = 0.f;
desc.MaxLOD = 0.f;
bd->pd3dDevice->CreateSamplerState(&desc, &bd->pFontSampler);
}
}
bool ImGui_ImplDX11_CreateDeviceObjects()
{
ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
if (!bd->pd3dDevice)
return false;
if (bd->pFontSampler)
ImGui_ImplDX11_InvalidateDeviceObjects();
// By using D3DCompile() from <d3dcompiler.h> / d3dcompiler.lib, we introduce a dependency to a given version of d3dcompiler_XX.dll (see D3DCOMPILER_DLL_A)
// If you would like to use this DX11 sample code but remove this dependency you can:
// 1) compile once, save the compiled shader blobs into a file or source code and pass them to CreateVertexShader()/CreatePixelShader() [preferred solution]
// 2) use code to detect any version of the DLL and grab a pointer to D3DCompile from the DLL.
// See https://github.com/ocornut/imgui/pull/638 for sources and details.
// Create the vertex shader
{
static const char* vertexShader =
"cbuffer vertexBuffer : register(b0) \
{\
float4x4 ProjectionMatrix; \
};\
struct VS_INPUT\
{\
float2 pos : POSITION;\
float4 col : COLOR0;\
float2 uv : TEXCOORD0;\
};\
\
struct PS_INPUT\
{\
float4 pos : SV_POSITION;\
float4 col : COLOR0;\
float2 uv : TEXCOORD0;\
};\
\
PS_INPUT main(VS_INPUT input)\
{\
PS_INPUT output;\
output.pos = mul( ProjectionMatrix, float4(input.pos.xy, 0.f, 1.f));\
output.col = input.col;\
output.uv = input.uv;\
return output;\
}";
ID3DBlob* vertexShaderBlob;
if (FAILED(D3DCompile(vertexShader, strlen(vertexShader), NULL, NULL, NULL, "main", "vs_4_0", 0, 0, &vertexShaderBlob, NULL)))
return false; // NB: Pass ID3DBlob* pErrorBlob to D3DCompile() to get error showing in (const char*)pErrorBlob->GetBufferPointer(). Make sure to Release() the blob!
if (bd->pd3dDevice->CreateVertexShader(vertexShaderBlob->GetBufferPointer(), vertexShaderBlob->GetBufferSize(), NULL, &bd->pVertexShader) != S_OK)
{
vertexShaderBlob->Release();
return false;
}
// Create the input layout
D3D11_INPUT_ELEMENT_DESC local_layout[] =
{
{ "POSITION", 0, DXGI_FORMAT_R32G32_FLOAT, 0, (UINT)IM_OFFSETOF(ImDrawVert, pos), D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, (UINT)IM_OFFSETOF(ImDrawVert, uv), D3D11_INPUT_PER_VERTEX_DATA, 0 },
{ "COLOR", 0, DXGI_FORMAT_R8G8B8A8_UNORM, 0, (UINT)IM_OFFSETOF(ImDrawVert, col), D3D11_INPUT_PER_VERTEX_DATA, 0 },
};
if (bd->pd3dDevice->CreateInputLayout(local_layout, 3, vertexShaderBlob->GetBufferPointer(), vertexShaderBlob->GetBufferSize(), &bd->pInputLayout) != S_OK)
{
vertexShaderBlob->Release();
return false;
}
vertexShaderBlob->Release();
// Create the constant buffer
{
D3D11_BUFFER_DESC desc;
desc.ByteWidth = sizeof(VERTEX_CONSTANT_BUFFER);
desc.Usage = D3D11_USAGE_DYNAMIC;
desc.BindFlags = D3D11_BIND_CONSTANT_BUFFER;
desc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
desc.MiscFlags = 0;
bd->pd3dDevice->CreateBuffer(&desc, NULL, &bd->pVertexConstantBuffer);
}
}
// Create the pixel shader
{
static const char* pixelShader =
"struct PS_INPUT\
{\
float4 pos : SV_POSITION;\
float4 col : COLOR0;\
float2 uv : TEXCOORD0;\
};\
sampler sampler0;\
Texture2D texture0;\
\
float4 main(PS_INPUT input) : SV_Target\
{\
float4 out_col = input.col * texture0.Sample(sampler0, input.uv); \
return out_col; \
}";
ID3DBlob* pixelShaderBlob;
if (FAILED(D3DCompile(pixelShader, strlen(pixelShader), NULL, NULL, NULL, "main", "ps_4_0", 0, 0, &pixelShaderBlob, NULL)))
return false; // NB: Pass ID3DBlob* pErrorBlob to D3DCompile() to get error showing in (const char*)pErrorBlob->GetBufferPointer(). Make sure to Release() the blob!
if (bd->pd3dDevice->CreatePixelShader(pixelShaderBlob->GetBufferPointer(), pixelShaderBlob->GetBufferSize(), NULL, &bd->pPixelShader) != S_OK)
{
pixelShaderBlob->Release();
return false;
}
pixelShaderBlob->Release();
}
// Create the blending setup
{
D3D11_BLEND_DESC desc;
ZeroMemory(&desc, sizeof(desc));
desc.AlphaToCoverageEnable = false;
desc.RenderTarget[0].BlendEnable = true;
desc.RenderTarget[0].SrcBlend = D3D11_BLEND_SRC_ALPHA;
desc.RenderTarget[0].DestBlend = D3D11_BLEND_INV_SRC_ALPHA;
desc.RenderTarget[0].BlendOp = D3D11_BLEND_OP_ADD;
desc.RenderTarget[0].SrcBlendAlpha = D3D11_BLEND_ONE;
desc.RenderTarget[0].DestBlendAlpha = D3D11_BLEND_INV_SRC_ALPHA;
desc.RenderTarget[0].BlendOpAlpha = D3D11_BLEND_OP_ADD;
desc.RenderTarget[0].RenderTargetWriteMask = D3D11_COLOR_WRITE_ENABLE_ALL;
bd->pd3dDevice->CreateBlendState(&desc, &bd->pBlendState);
}
// Create the rasterizer state
{
D3D11_RASTERIZER_DESC desc;
ZeroMemory(&desc, sizeof(desc));
desc.FillMode = D3D11_FILL_SOLID;
desc.CullMode = D3D11_CULL_NONE;
desc.ScissorEnable = true;
desc.DepthClipEnable = true;
bd->pd3dDevice->CreateRasterizerState(&desc, &bd->pRasterizerState);
}
// Create depth-stencil State
{
D3D11_DEPTH_STENCIL_DESC desc;
ZeroMemory(&desc, sizeof(desc));
desc.DepthEnable = false;
desc.DepthWriteMask = D3D11_DEPTH_WRITE_MASK_ALL;
desc.DepthFunc = D3D11_COMPARISON_ALWAYS;
desc.StencilEnable = false;
desc.FrontFace.StencilFailOp = desc.FrontFace.StencilDepthFailOp = desc.FrontFace.StencilPassOp = D3D11_STENCIL_OP_KEEP;
desc.FrontFace.StencilFunc = D3D11_COMPARISON_ALWAYS;
desc.BackFace = desc.FrontFace;
bd->pd3dDevice->CreateDepthStencilState(&desc, &bd->pDepthStencilState);
}
ImGui_ImplDX11_CreateFontsTexture();
return true;
}
void ImGui_ImplDX11_InvalidateDeviceObjects()
{
ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
if (!bd->pd3dDevice)
return;
if (bd->pFontSampler) { bd->pFontSampler->Release(); bd->pFontSampler = NULL; }
if (bd->pFontTextureView) { bd->pFontTextureView->Release(); bd->pFontTextureView = NULL; ImGui::GetIO().Fonts->SetTexID(NULL); } // We copied data->pFontTextureView to io.Fonts->TexID so let's clear that as well.
if (bd->pIB) { bd->pIB->Release(); bd->pIB = NULL; }
if (bd->pVB) { bd->pVB->Release(); bd->pVB = NULL; }
if (bd->pBlendState) { bd->pBlendState->Release(); bd->pBlendState = NULL; }
if (bd->pDepthStencilState) { bd->pDepthStencilState->Release(); bd->pDepthStencilState = NULL; }
if (bd->pRasterizerState) { bd->pRasterizerState->Release(); bd->pRasterizerState = NULL; }
if (bd->pPixelShader) { bd->pPixelShader->Release(); bd->pPixelShader = NULL; }
if (bd->pVertexConstantBuffer) { bd->pVertexConstantBuffer->Release(); bd->pVertexConstantBuffer = NULL; }
if (bd->pInputLayout) { bd->pInputLayout->Release(); bd->pInputLayout = NULL; }
if (bd->pVertexShader) { bd->pVertexShader->Release(); bd->pVertexShader = NULL; }
}
bool ImGui_ImplDX11_Init(ID3D11Device* device, ID3D11DeviceContext* device_context)
{
ImGuiIO& io = ImGui::GetIO();
IM_ASSERT(io.BackendRendererUserData == NULL && "Already initialized a renderer backend!");
// Setup backend capabilities flags
ImGui_ImplDX11_Data* bd = IM_NEW(ImGui_ImplDX11_Data)();
io.BackendRendererUserData = (void*)bd;
io.BackendRendererName = "imgui_impl_dx11";
io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset; // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
io.BackendFlags |= ImGuiBackendFlags_RendererHasViewports; // We can create multi-viewports on the Renderer side (optional)
// Get factory from device
IDXGIDevice* pDXGIDevice = NULL;
IDXGIAdapter* pDXGIAdapter = NULL;
IDXGIFactory* pFactory = NULL;
if (device->QueryInterface(IID_PPV_ARGS(&pDXGIDevice)) == S_OK)
if (pDXGIDevice->GetParent(IID_PPV_ARGS(&pDXGIAdapter)) == S_OK)
if (pDXGIAdapter->GetParent(IID_PPV_ARGS(&pFactory)) == S_OK)
{
bd->pd3dDevice = device;
bd->pd3dDeviceContext = device_context;
bd->pFactory = pFactory;
}
if (pDXGIDevice) pDXGIDevice->Release();
if (pDXGIAdapter) pDXGIAdapter->Release();
bd->pd3dDevice->AddRef();
bd->pd3dDeviceContext->AddRef();
if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
ImGui_ImplDX11_InitPlatformInterface();
return true;
}
void ImGui_ImplDX11_Shutdown()
{
ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
IM_ASSERT(bd != NULL && "No renderer backend to shutdown, or already shutdown?");
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplDX11_ShutdownPlatformInterface();
ImGui_ImplDX11_InvalidateDeviceObjects();
if (bd->pFactory) { bd->pFactory->Release(); }
if (bd->pd3dDevice) { bd->pd3dDevice->Release(); }
if (bd->pd3dDeviceContext) { bd->pd3dDeviceContext->Release(); }
io.BackendRendererName = NULL;
io.BackendRendererUserData = NULL;
IM_DELETE(bd);
}
void ImGui_ImplDX11_NewFrame()
{
ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
IM_ASSERT(bd != NULL && "Did you call ImGui_ImplDX11_Init()?");
if (!bd->pFontSampler)
ImGui_ImplDX11_CreateDeviceObjects();
}
//--------------------------------------------------------------------------------------------------------
// MULTI-VIEWPORT / PLATFORM INTERFACE SUPPORT
// This is an _advanced_ and _optional_ feature, allowing the backend to create and handle multiple viewports simultaneously.
// If you are new to dear imgui or creating a new binding for dear imgui, it is recommended that you completely ignore this section first..
//--------------------------------------------------------------------------------------------------------
// Helper structure we store in the void* RenderUserData field of each ImGuiViewport to easily retrieve our backend data.
struct ImGui_ImplDX11_ViewportData
{
IDXGISwapChain* SwapChain;
ID3D11RenderTargetView* RTView;
ImGui_ImplDX11_ViewportData() { SwapChain = NULL; RTView = NULL; }
~ImGui_ImplDX11_ViewportData() { IM_ASSERT(SwapChain == NULL && RTView == NULL); }
};
static void ImGui_ImplDX11_CreateWindow(ImGuiViewport* viewport)
{
ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
ImGui_ImplDX11_ViewportData* vd = IM_NEW(ImGui_ImplDX11_ViewportData)();
viewport->RendererUserData = vd;
// PlatformHandleRaw should always be a HWND, whereas PlatformHandle might be a higher-level handle (e.g. GLFWWindow*, SDL_Window*).
// Some backend will leave PlatformHandleRaw NULL, in which case we assume PlatformHandle will contain the HWND.
HWND hwnd = viewport->PlatformHandleRaw ? (HWND)viewport->PlatformHandleRaw : (HWND)viewport->PlatformHandle;
IM_ASSERT(hwnd != 0);
// Create swap chain
DXGI_SWAP_CHAIN_DESC sd;
ZeroMemory(&sd, sizeof(sd));
sd.BufferDesc.Width = (UINT)viewport->Size.x;
sd.BufferDesc.Height = (UINT)viewport->Size.y;
sd.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
sd.SampleDesc.Count = 1;
sd.SampleDesc.Quality = 0;
sd.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
sd.BufferCount = 1;
sd.OutputWindow = hwnd;
sd.Windowed = TRUE;
sd.SwapEffect = DXGI_SWAP_EFFECT_DISCARD;
sd.Flags = 0;
IM_ASSERT(vd->SwapChain == NULL && vd->RTView == NULL);
bd->pFactory->CreateSwapChain(bd->pd3dDevice, &sd, &vd->SwapChain);
// Create the render target
if (vd->SwapChain)
{
ID3D11Texture2D* pBackBuffer;
vd->SwapChain->GetBuffer(0, IID_PPV_ARGS(&pBackBuffer));
bd->pd3dDevice->CreateRenderTargetView(pBackBuffer, NULL, &vd->RTView);
pBackBuffer->Release();
}
}
static void ImGui_ImplDX11_DestroyWindow(ImGuiViewport* viewport)
{
// The main viewport (owned by the application) will always have RendererUserData == NULL since we didn't create the data for it.
if (ImGui_ImplDX11_ViewportData* vd = (ImGui_ImplDX11_ViewportData*)viewport->RendererUserData)
{
if (vd->SwapChain)
vd->SwapChain->Release();
vd->SwapChain = NULL;
if (vd->RTView)
vd->RTView->Release();
vd->RTView = NULL;
IM_DELETE(vd);
}
viewport->RendererUserData = NULL;
}
static void ImGui_ImplDX11_SetWindowSize(ImGuiViewport* viewport, ImVec2 size)
{
ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
ImGui_ImplDX11_ViewportData* vd = (ImGui_ImplDX11_ViewportData*)viewport->RendererUserData;
if (vd->RTView)
{
vd->RTView->Release();
vd->RTView = NULL;
}
if (vd->SwapChain)
{
ID3D11Texture2D* pBackBuffer = NULL;
vd->SwapChain->ResizeBuffers(0, (UINT)size.x, (UINT)size.y, DXGI_FORMAT_UNKNOWN, 0);
vd->SwapChain->GetBuffer(0, IID_PPV_ARGS(&pBackBuffer));
if (pBackBuffer == NULL) { fprintf(stderr, "ImGui_ImplDX11_SetWindowSize() failed creating buffers.\n"); return; }
bd->pd3dDevice->CreateRenderTargetView(pBackBuffer, NULL, &vd->RTView);
pBackBuffer->Release();
}
}
static void ImGui_ImplDX11_RenderWindow(ImGuiViewport* viewport, void*)
{
ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();
ImGui_ImplDX11_ViewportData* vd = (ImGui_ImplDX11_ViewportData*)viewport->RendererUserData;
ImVec4 clear_color = ImVec4(0.0f, 0.0f, 0.0f, 1.0f);
bd->pd3dDeviceContext->OMSetRenderTargets(1, &vd->RTView, NULL);
if (!(viewport->Flags & ImGuiViewportFlags_NoRendererClear))
bd->pd3dDeviceContext->ClearRenderTargetView(vd->RTView, (float*)&clear_color);
ImGui_ImplDX11_RenderDrawData(viewport->DrawData);
}
static void ImGui_ImplDX11_SwapBuffers(ImGuiViewport* viewport, void*)
{
ImGui_ImplDX11_ViewportData* vd = (ImGui_ImplDX11_ViewportData*)viewport->RendererUserData;
vd->SwapChain->Present(0, 0); // Present without vsync
}
static void ImGui_ImplDX11_InitPlatformInterface()
{
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
platform_io.Renderer_CreateWindow = ImGui_ImplDX11_CreateWindow;
platform_io.Renderer_DestroyWindow = ImGui_ImplDX11_DestroyWindow;
platform_io.Renderer_SetWindowSize = ImGui_ImplDX11_SetWindowSize;
platform_io.Renderer_RenderWindow = ImGui_ImplDX11_RenderWindow;
platform_io.Renderer_SwapBuffers = ImGui_ImplDX11_SwapBuffers;
}
static void ImGui_ImplDX11_ShutdownPlatformInterface()
{
ImGui::DestroyPlatformWindows();
}

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// dear imgui: Renderer Backend for DirectX11
// This needs to be used along with a Platform Backend (e.g. Win32)
// Implemented features:
// [X] Renderer: User texture binding. Use 'ID3D11ShaderResourceView*' as ImTextureID. Read the FAQ about ImTextureID!
// [X] Renderer: Multi-viewport support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
// [X] Renderer: Support for large meshes (64k+ vertices) with 16-bit indices.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
#pragma once
#include "imgui.h" // IMGUI_IMPL_API
struct ID3D11Device;
struct ID3D11DeviceContext;
IMGUI_IMPL_API bool ImGui_ImplDX11_Init(ID3D11Device* device, ID3D11DeviceContext* device_context);
IMGUI_IMPL_API void ImGui_ImplDX11_Shutdown();
IMGUI_IMPL_API void ImGui_ImplDX11_NewFrame();
IMGUI_IMPL_API void ImGui_ImplDX11_RenderDrawData(ImDrawData* draw_data);
// Use if you want to reset your rendering device without losing Dear ImGui state.
IMGUI_IMPL_API void ImGui_ImplDX11_InvalidateDeviceObjects();
IMGUI_IMPL_API bool ImGui_ImplDX11_CreateDeviceObjects();

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// dear imgui: Renderer Backend for DirectX12
// This needs to be used along with a Platform Backend (e.g. Win32)
// Implemented features:
// [X] Renderer: User texture binding. Use 'D3D12_GPU_DESCRIPTOR_HANDLE' as ImTextureID. Read the FAQ about ImTextureID!
// [X] Renderer: Multi-viewport support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
// [X] Renderer: Support for large meshes (64k+ vertices) with 16-bit indices.
// Important: to compile on 32-bit systems, this backend requires code to be compiled with '#define ImTextureID ImU64'.
// This is because we need ImTextureID to carry a 64-bit value and by default ImTextureID is defined as void*.
// This define is set in the example .vcxproj file and need to be replicated in your app or by adding it to your imconfig.h file.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
#pragma once
#include "imgui.h" // IMGUI_IMPL_API
#include <dxgiformat.h> // DXGI_FORMAT
struct ID3D12Device;
struct ID3D12DescriptorHeap;
struct ID3D12GraphicsCommandList;
struct D3D12_CPU_DESCRIPTOR_HANDLE;
struct D3D12_GPU_DESCRIPTOR_HANDLE;
// cmd_list is the command list that the implementation will use to render imgui draw lists.
// Before calling the render function, caller must prepare cmd_list by resetting it and setting the appropriate
// render target and descriptor heap that contains font_srv_cpu_desc_handle/font_srv_gpu_desc_handle.
// font_srv_cpu_desc_handle and font_srv_gpu_desc_handle are handles to a single SRV descriptor to use for the internal font texture.
IMGUI_IMPL_API bool ImGui_ImplDX12_Init(ID3D12Device* device, int num_frames_in_flight, DXGI_FORMAT rtv_format, ID3D12DescriptorHeap* cbv_srv_heap,
D3D12_CPU_DESCRIPTOR_HANDLE font_srv_cpu_desc_handle, D3D12_GPU_DESCRIPTOR_HANDLE font_srv_gpu_desc_handle);
IMGUI_IMPL_API void ImGui_ImplDX12_Shutdown();
IMGUI_IMPL_API void ImGui_ImplDX12_NewFrame();
IMGUI_IMPL_API void ImGui_ImplDX12_RenderDrawData(ImDrawData* draw_data, ID3D12GraphicsCommandList* graphics_command_list);
// Use if you want to reset your rendering device without losing Dear ImGui state.
IMGUI_IMPL_API void ImGui_ImplDX12_InvalidateDeviceObjects();
IMGUI_IMPL_API bool ImGui_ImplDX12_CreateDeviceObjects();

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// dear imgui: Renderer Backend for DirectX9
// This needs to be used along with a Platform Backend (e.g. Win32)
// Implemented features:
// [X] Renderer: User texture binding. Use 'LPDIRECT3DTEXTURE9' as ImTextureID. Read the FAQ about ImTextureID!
// [X] Renderer: Multi-viewport support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
// [X] Renderer: Support for large meshes (64k+ vertices) with 16-bit indices.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2021-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
// 2021-06-29: Reorganized backend to pull data from a single structure to facilitate usage with multiple-contexts (all g_XXXX access changed to bd->XXXX).
// 2021-06-25: DirectX9: Explicitly disable texture state stages after >= 1.
// 2021-05-19: DirectX9: Replaced direct access to ImDrawCmd::TextureId with a call to ImDrawCmd::GetTexID(). (will become a requirement)
// 2021-04-23: DirectX9: Explicitly setting up more graphics states to increase compatibility with unusual non-default states.
// 2021-03-18: DirectX9: Calling IDirect3DStateBlock9::Capture() after CreateStateBlock() as a workaround for state restoring issues (see #3857).
// 2021-03-03: DirectX9: Added support for IMGUI_USE_BGRA_PACKED_COLOR in user's imconfig file.
// 2021-02-18: DirectX9: Change blending equation to preserve alpha in output buffer.
// 2019-05-29: DirectX9: Added support for large mesh (64K+ vertices), enable ImGuiBackendFlags_RendererHasVtxOffset flag.
// 2019-04-30: DirectX9: Added support for special ImDrawCallback_ResetRenderState callback to reset render state.
// 2019-03-29: Misc: Fixed erroneous assert in ImGui_ImplDX9_InvalidateDeviceObjects().
// 2019-01-16: Misc: Disabled fog before drawing UI's. Fixes issue #2288.
// 2018-11-30: Misc: Setting up io.BackendRendererName so it can be displayed in the About Window.
// 2018-06-08: Misc: Extracted imgui_impl_dx9.cpp/.h away from the old combined DX9+Win32 example.
// 2018-06-08: DirectX9: Use draw_data->DisplayPos and draw_data->DisplaySize to setup projection matrix and clipping rectangle.
// 2018-05-07: Render: Saving/restoring Transform because they don't seem to be included in the StateBlock. Setting shading mode to Gouraud.
// 2018-02-16: Misc: Obsoleted the io.RenderDrawListsFn callback and exposed ImGui_ImplDX9_RenderDrawData() in the .h file so you can call it yourself.
// 2018-02-06: Misc: Removed call to ImGui::Shutdown() which is not available from 1.60 WIP, user needs to call CreateContext/DestroyContext themselves.
#include "imgui.h"
#include "imgui_impl_dx9.h"
// DirectX
#include <d3d9.h>
// DirectX data
struct ImGui_ImplDX9_Data
{
LPDIRECT3DDEVICE9 pd3dDevice;
LPDIRECT3DVERTEXBUFFER9 pVB;
LPDIRECT3DINDEXBUFFER9 pIB;
LPDIRECT3DTEXTURE9 FontTexture;
int VertexBufferSize;
int IndexBufferSize;
ImGui_ImplDX9_Data() { memset(this, 0, sizeof(*this)); VertexBufferSize = 5000; IndexBufferSize = 10000; }
};
struct CUSTOMVERTEX
{
float pos[3];
D3DCOLOR col;
float uv[2];
};
#define D3DFVF_CUSTOMVERTEX (D3DFVF_XYZ|D3DFVF_DIFFUSE|D3DFVF_TEX1)
#ifdef IMGUI_USE_BGRA_PACKED_COLOR
#define IMGUI_COL_TO_DX9_ARGB(_COL) (_COL)
#else
#define IMGUI_COL_TO_DX9_ARGB(_COL) (((_COL) & 0xFF00FF00) | (((_COL) & 0xFF0000) >> 16) | (((_COL) & 0xFF) << 16))
#endif
// Backend data stored in io.BackendRendererUserData to allow support for multiple Dear ImGui contexts
// It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts.
static ImGui_ImplDX9_Data* ImGui_ImplDX9_GetBackendData()
{
return ImGui::GetCurrentContext() ? (ImGui_ImplDX9_Data*)ImGui::GetIO().BackendRendererUserData : NULL;
}
// Forward Declarations
static void ImGui_ImplDX9_InitPlatformInterface();
static void ImGui_ImplDX9_ShutdownPlatformInterface();
static void ImGui_ImplDX9_CreateDeviceObjectsForPlatformWindows();
static void ImGui_ImplDX9_InvalidateDeviceObjectsForPlatformWindows();
// Functions
static void ImGui_ImplDX9_SetupRenderState(ImDrawData* draw_data)
{
ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData();
// Setup viewport
D3DVIEWPORT9 vp;
vp.X = vp.Y = 0;
vp.Width = (DWORD)draw_data->DisplaySize.x;
vp.Height = (DWORD)draw_data->DisplaySize.y;
vp.MinZ = 0.0f;
vp.MaxZ = 1.0f;
bd->pd3dDevice->SetViewport(&vp);
// Setup render state: fixed-pipeline, alpha-blending, no face culling, no depth testing, shade mode (for gradient)
bd->pd3dDevice->SetPixelShader(NULL);
bd->pd3dDevice->SetVertexShader(NULL);
bd->pd3dDevice->SetRenderState(D3DRS_FILLMODE, D3DFILL_SOLID);
bd->pd3dDevice->SetRenderState(D3DRS_SHADEMODE, D3DSHADE_GOURAUD);
bd->pd3dDevice->SetRenderState(D3DRS_ZWRITEENABLE, FALSE);
bd->pd3dDevice->SetRenderState(D3DRS_ALPHATESTENABLE, FALSE);
bd->pd3dDevice->SetRenderState(D3DRS_CULLMODE, D3DCULL_NONE);
bd->pd3dDevice->SetRenderState(D3DRS_ZENABLE, FALSE);
bd->pd3dDevice->SetRenderState(D3DRS_ALPHABLENDENABLE, TRUE);
bd->pd3dDevice->SetRenderState(D3DRS_BLENDOP, D3DBLENDOP_ADD);
bd->pd3dDevice->SetRenderState(D3DRS_SRCBLEND, D3DBLEND_SRCALPHA);
bd->pd3dDevice->SetRenderState(D3DRS_DESTBLEND, D3DBLEND_INVSRCALPHA);
bd->pd3dDevice->SetRenderState(D3DRS_SEPARATEALPHABLENDENABLE, TRUE);
bd->pd3dDevice->SetRenderState(D3DRS_SRCBLENDALPHA, D3DBLEND_ONE);
bd->pd3dDevice->SetRenderState(D3DRS_DESTBLENDALPHA, D3DBLEND_INVSRCALPHA);
bd->pd3dDevice->SetRenderState(D3DRS_SCISSORTESTENABLE, TRUE);
bd->pd3dDevice->SetRenderState(D3DRS_FOGENABLE, FALSE);
bd->pd3dDevice->SetRenderState(D3DRS_RANGEFOGENABLE, FALSE);
bd->pd3dDevice->SetRenderState(D3DRS_SPECULARENABLE, FALSE);
bd->pd3dDevice->SetRenderState(D3DRS_STENCILENABLE, FALSE);
bd->pd3dDevice->SetRenderState(D3DRS_CLIPPING, TRUE);
bd->pd3dDevice->SetRenderState(D3DRS_LIGHTING, FALSE);
bd->pd3dDevice->SetTextureStageState(0, D3DTSS_COLOROP, D3DTOP_MODULATE);
bd->pd3dDevice->SetTextureStageState(0, D3DTSS_COLORARG1, D3DTA_TEXTURE);
bd->pd3dDevice->SetTextureStageState(0, D3DTSS_COLORARG2, D3DTA_DIFFUSE);
bd->pd3dDevice->SetTextureStageState(0, D3DTSS_ALPHAOP, D3DTOP_MODULATE);
bd->pd3dDevice->SetTextureStageState(0, D3DTSS_ALPHAARG1, D3DTA_TEXTURE);
bd->pd3dDevice->SetTextureStageState(0, D3DTSS_ALPHAARG2, D3DTA_DIFFUSE);
bd->pd3dDevice->SetTextureStageState(1, D3DTSS_COLOROP, D3DTOP_DISABLE);
bd->pd3dDevice->SetTextureStageState(1, D3DTSS_ALPHAOP, D3DTOP_DISABLE);
bd->pd3dDevice->SetSamplerState(0, D3DSAMP_MINFILTER, D3DTEXF_LINEAR);
bd->pd3dDevice->SetSamplerState(0, D3DSAMP_MAGFILTER, D3DTEXF_LINEAR);
// Setup orthographic projection matrix
// Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayPos is (0,0) for single viewport apps.
// Being agnostic of whether <d3dx9.h> or <DirectXMath.h> can be used, we aren't relying on D3DXMatrixIdentity()/D3DXMatrixOrthoOffCenterLH() or DirectX::XMMatrixIdentity()/DirectX::XMMatrixOrthographicOffCenterLH()
{
float L = draw_data->DisplayPos.x + 0.5f;
float R = draw_data->DisplayPos.x + draw_data->DisplaySize.x + 0.5f;
float T = draw_data->DisplayPos.y + 0.5f;
float B = draw_data->DisplayPos.y + draw_data->DisplaySize.y + 0.5f;
D3DMATRIX mat_identity = { { { 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f } } };
D3DMATRIX mat_projection =
{ { {
2.0f/(R-L), 0.0f, 0.0f, 0.0f,
0.0f, 2.0f/(T-B), 0.0f, 0.0f,
0.0f, 0.0f, 0.5f, 0.0f,
(L+R)/(L-R), (T+B)/(B-T), 0.5f, 1.0f
} } };
bd->pd3dDevice->SetTransform(D3DTS_WORLD, &mat_identity);
bd->pd3dDevice->SetTransform(D3DTS_VIEW, &mat_identity);
bd->pd3dDevice->SetTransform(D3DTS_PROJECTION, &mat_projection);
}
}
// Render function.
void ImGui_ImplDX9_RenderDrawData(ImDrawData* draw_data)
{
// Avoid rendering when minimized
if (draw_data->DisplaySize.x <= 0.0f || draw_data->DisplaySize.y <= 0.0f)
return;
// Create and grow buffers if needed
ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData();
if (!bd->pVB || bd->VertexBufferSize < draw_data->TotalVtxCount)
{
if (bd->pVB) { bd->pVB->Release(); bd->pVB = NULL; }
bd->VertexBufferSize = draw_data->TotalVtxCount + 5000;
if (bd->pd3dDevice->CreateVertexBuffer(bd->VertexBufferSize * sizeof(CUSTOMVERTEX), D3DUSAGE_DYNAMIC | D3DUSAGE_WRITEONLY, D3DFVF_CUSTOMVERTEX, D3DPOOL_DEFAULT, &bd->pVB, NULL) < 0)
return;
}
if (!bd->pIB || bd->IndexBufferSize < draw_data->TotalIdxCount)
{
if (bd->pIB) { bd->pIB->Release(); bd->pIB = NULL; }
bd->IndexBufferSize = draw_data->TotalIdxCount + 10000;
if (bd->pd3dDevice->CreateIndexBuffer(bd->IndexBufferSize * sizeof(ImDrawIdx), D3DUSAGE_DYNAMIC | D3DUSAGE_WRITEONLY, sizeof(ImDrawIdx) == 2 ? D3DFMT_INDEX16 : D3DFMT_INDEX32, D3DPOOL_DEFAULT, &bd->pIB, NULL) < 0)
return;
}
// Backup the DX9 state
IDirect3DStateBlock9* d3d9_state_block = NULL;
if (bd->pd3dDevice->CreateStateBlock(D3DSBT_ALL, &d3d9_state_block) < 0)
return;
if (d3d9_state_block->Capture() < 0)
{
d3d9_state_block->Release();
return;
}
// Backup the DX9 transform (DX9 documentation suggests that it is included in the StateBlock but it doesn't appear to)
D3DMATRIX last_world, last_view, last_projection;
bd->pd3dDevice->GetTransform(D3DTS_WORLD, &last_world);
bd->pd3dDevice->GetTransform(D3DTS_VIEW, &last_view);
bd->pd3dDevice->GetTransform(D3DTS_PROJECTION, &last_projection);
// Allocate buffers
CUSTOMVERTEX* vtx_dst;
ImDrawIdx* idx_dst;
if (bd->pVB->Lock(0, (UINT)(draw_data->TotalVtxCount * sizeof(CUSTOMVERTEX)), (void**)&vtx_dst, D3DLOCK_DISCARD) < 0)
{
d3d9_state_block->Release();
return;
}
if (bd->pIB->Lock(0, (UINT)(draw_data->TotalIdxCount * sizeof(ImDrawIdx)), (void**)&idx_dst, D3DLOCK_DISCARD) < 0)
{
bd->pVB->Unlock();
d3d9_state_block->Release();
return;
}
// Copy and convert all vertices into a single contiguous buffer, convert colors to DX9 default format.
// FIXME-OPT: This is a minor waste of resource, the ideal is to use imconfig.h and
// 1) to avoid repacking colors: #define IMGUI_USE_BGRA_PACKED_COLOR
// 2) to avoid repacking vertices: #define IMGUI_OVERRIDE_DRAWVERT_STRUCT_LAYOUT struct ImDrawVert { ImVec2 pos; float z; ImU32 col; ImVec2 uv; }
for (int n = 0; n < draw_data->CmdListsCount; n++)
{
const ImDrawList* cmd_list = draw_data->CmdLists[n];
const ImDrawVert* vtx_src = cmd_list->VtxBuffer.Data;
for (int i = 0; i < cmd_list->VtxBuffer.Size; i++)
{
vtx_dst->pos[0] = vtx_src->pos.x;
vtx_dst->pos[1] = vtx_src->pos.y;
vtx_dst->pos[2] = 0.0f;
vtx_dst->col = IMGUI_COL_TO_DX9_ARGB(vtx_src->col);
vtx_dst->uv[0] = vtx_src->uv.x;
vtx_dst->uv[1] = vtx_src->uv.y;
vtx_dst++;
vtx_src++;
}
memcpy(idx_dst, cmd_list->IdxBuffer.Data, cmd_list->IdxBuffer.Size * sizeof(ImDrawIdx));
idx_dst += cmd_list->IdxBuffer.Size;
}
bd->pVB->Unlock();
bd->pIB->Unlock();
bd->pd3dDevice->SetStreamSource(0, bd->pVB, 0, sizeof(CUSTOMVERTEX));
bd->pd3dDevice->SetIndices(bd->pIB);
bd->pd3dDevice->SetFVF(D3DFVF_CUSTOMVERTEX);
// Setup desired DX state
ImGui_ImplDX9_SetupRenderState(draw_data);
// Render command lists
// (Because we merged all buffers into a single one, we maintain our own offset into them)
int global_vtx_offset = 0;
int global_idx_offset = 0;
ImVec2 clip_off = draw_data->DisplayPos;
for (int n = 0; n < draw_data->CmdListsCount; n++)
{
const ImDrawList* cmd_list = draw_data->CmdLists[n];
for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
{
const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i];
if (pcmd->UserCallback != NULL)
{
// User callback, registered via ImDrawList::AddCallback()
// (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
ImGui_ImplDX9_SetupRenderState(draw_data);
else
pcmd->UserCallback(cmd_list, pcmd);
}
else
{
// Project scissor/clipping rectangles into framebuffer space
ImVec2 clip_min(pcmd->ClipRect.x - clip_off.x, pcmd->ClipRect.y - clip_off.y);
ImVec2 clip_max(pcmd->ClipRect.z - clip_off.x, pcmd->ClipRect.w - clip_off.y);
if (clip_max.x < clip_min.x || clip_max.y < clip_min.y)
continue;
// Apply Scissor/clipping rectangle, Bind texture, Draw
const RECT r = { (LONG)clip_min.x, (LONG)clip_min.y, (LONG)clip_max.x, (LONG)clip_max.y };
const LPDIRECT3DTEXTURE9 texture = (LPDIRECT3DTEXTURE9)pcmd->GetTexID();
bd->pd3dDevice->SetTexture(0, texture);
bd->pd3dDevice->SetScissorRect(&r);
bd->pd3dDevice->DrawIndexedPrimitive(D3DPT_TRIANGLELIST, pcmd->VtxOffset + global_vtx_offset, 0, (UINT)cmd_list->VtxBuffer.Size, pcmd->IdxOffset + global_idx_offset, pcmd->ElemCount / 3);
}
}
global_idx_offset += cmd_list->IdxBuffer.Size;
global_vtx_offset += cmd_list->VtxBuffer.Size;
}
// When using multi-viewports, it appears that there's an odd logic in DirectX9 which prevent subsequent windows
// from rendering until the first window submits at least one draw call, even once. That's our workaround. (see #2560)
if (global_vtx_offset == 0)
bd->pd3dDevice->DrawIndexedPrimitive(D3DPT_TRIANGLELIST, 0, 0, 0, 0, 0);
// Restore the DX9 transform
bd->pd3dDevice->SetTransform(D3DTS_WORLD, &last_world);
bd->pd3dDevice->SetTransform(D3DTS_VIEW, &last_view);
bd->pd3dDevice->SetTransform(D3DTS_PROJECTION, &last_projection);
// Restore the DX9 state
d3d9_state_block->Apply();
d3d9_state_block->Release();
}
bool ImGui_ImplDX9_Init(IDirect3DDevice9* device)
{
ImGuiIO& io = ImGui::GetIO();
IM_ASSERT(io.BackendRendererUserData == NULL && "Already initialized a renderer backend!");
// Setup backend capabilities flags
ImGui_ImplDX9_Data* bd = IM_NEW(ImGui_ImplDX9_Data)();
io.BackendRendererUserData = (void*)bd;
io.BackendRendererName = "imgui_impl_dx9";
io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset; // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
io.BackendFlags |= ImGuiBackendFlags_RendererHasViewports; // We can create multi-viewports on the Renderer side (optional)
bd->pd3dDevice = device;
bd->pd3dDevice->AddRef();
if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
ImGui_ImplDX9_InitPlatformInterface();
return true;
}
void ImGui_ImplDX9_Shutdown()
{
ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData();
IM_ASSERT(bd != NULL && "No renderer backend to shutdown, or already shutdown?");
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplDX9_ShutdownPlatformInterface();
ImGui_ImplDX9_InvalidateDeviceObjects();
if (bd->pd3dDevice) { bd->pd3dDevice->Release(); }
io.BackendRendererName = NULL;
io.BackendRendererUserData = NULL;
IM_DELETE(bd);
}
static bool ImGui_ImplDX9_CreateFontsTexture()
{
// Build texture atlas
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData();
unsigned char* pixels;
int width, height, bytes_per_pixel;
io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height, &bytes_per_pixel);
// Convert RGBA32 to BGRA32 (because RGBA32 is not well supported by DX9 devices)
#ifndef IMGUI_USE_BGRA_PACKED_COLOR
if (io.Fonts->TexPixelsUseColors)
{
ImU32* dst_start = (ImU32*)ImGui::MemAlloc((size_t)width * height * bytes_per_pixel);
for (ImU32* src = (ImU32*)pixels, *dst = dst_start, *dst_end = dst_start + (size_t)width * height; dst < dst_end; src++, dst++)
*dst = IMGUI_COL_TO_DX9_ARGB(*src);
pixels = (unsigned char*)dst_start;
}
#endif
// Upload texture to graphics system
bd->FontTexture = NULL;
if (bd->pd3dDevice->CreateTexture(width, height, 1, D3DUSAGE_DYNAMIC, D3DFMT_A8R8G8B8, D3DPOOL_DEFAULT, &bd->FontTexture, NULL) < 0)
return false;
D3DLOCKED_RECT tex_locked_rect;
if (bd->FontTexture->LockRect(0, &tex_locked_rect, NULL, 0) != D3D_OK)
return false;
for (int y = 0; y < height; y++)
memcpy((unsigned char*)tex_locked_rect.pBits + (size_t)tex_locked_rect.Pitch * y, pixels + (size_t)width * bytes_per_pixel * y, (size_t)width * bytes_per_pixel);
bd->FontTexture->UnlockRect(0);
// Store our identifier
io.Fonts->SetTexID((ImTextureID)bd->FontTexture);
#ifndef IMGUI_USE_BGRA_PACKED_COLOR
if (io.Fonts->TexPixelsUseColors)
ImGui::MemFree(pixels);
#endif
return true;
}
bool ImGui_ImplDX9_CreateDeviceObjects()
{
ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData();
if (!bd || !bd->pd3dDevice)
return false;
if (!ImGui_ImplDX9_CreateFontsTexture())
return false;
ImGui_ImplDX9_CreateDeviceObjectsForPlatformWindows();
return true;
}
void ImGui_ImplDX9_InvalidateDeviceObjects()
{
ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData();
if (!bd || !bd->pd3dDevice)
return;
if (bd->pVB) { bd->pVB->Release(); bd->pVB = NULL; }
if (bd->pIB) { bd->pIB->Release(); bd->pIB = NULL; }
if (bd->FontTexture) { bd->FontTexture->Release(); bd->FontTexture = NULL; ImGui::GetIO().Fonts->SetTexID(NULL); } // We copied bd->pFontTextureView to io.Fonts->TexID so let's clear that as well.
ImGui_ImplDX9_InvalidateDeviceObjectsForPlatformWindows();
}
void ImGui_ImplDX9_NewFrame()
{
ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData();
IM_ASSERT(bd != NULL && "Did you call ImGui_ImplDX9_Init()?");
if (!bd->FontTexture)
ImGui_ImplDX9_CreateDeviceObjects();
}
//--------------------------------------------------------------------------------------------------------
// MULTI-VIEWPORT / PLATFORM INTERFACE SUPPORT
// This is an _advanced_ and _optional_ feature, allowing the backend to create and handle multiple viewports simultaneously.
// If you are new to dear imgui or creating a new binding for dear imgui, it is recommended that you completely ignore this section first..
//--------------------------------------------------------------------------------------------------------
// Helper structure we store in the void* RenderUserData field of each ImGuiViewport to easily retrieve our backend data.
struct ImGui_ImplDX9_ViewportData
{
IDirect3DSwapChain9* SwapChain;
D3DPRESENT_PARAMETERS d3dpp;
ImGui_ImplDX9_ViewportData() { SwapChain = NULL; ZeroMemory(&d3dpp, sizeof(D3DPRESENT_PARAMETERS)); }
~ImGui_ImplDX9_ViewportData() { IM_ASSERT(SwapChain == NULL); }
};
static void ImGui_ImplDX9_CreateWindow(ImGuiViewport* viewport)
{
ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData();
ImGui_ImplDX9_ViewportData* vd = IM_NEW(ImGui_ImplDX9_ViewportData)();
viewport->RendererUserData = vd;
// PlatformHandleRaw should always be a HWND, whereas PlatformHandle might be a higher-level handle (e.g. GLFWWindow*, SDL_Window*).
// Some backends will leave PlatformHandleRaw NULL, in which case we assume PlatformHandle will contain the HWND.
HWND hwnd = viewport->PlatformHandleRaw ? (HWND)viewport->PlatformHandleRaw : (HWND)viewport->PlatformHandle;
IM_ASSERT(hwnd != 0);
ZeroMemory(&vd->d3dpp, sizeof(D3DPRESENT_PARAMETERS));
vd->d3dpp.Windowed = TRUE;
vd->d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
vd->d3dpp.BackBufferWidth = (UINT)viewport->Size.x;
vd->d3dpp.BackBufferHeight = (UINT)viewport->Size.y;
vd->d3dpp.BackBufferFormat = D3DFMT_UNKNOWN;
vd->d3dpp.hDeviceWindow = hwnd;
vd->d3dpp.EnableAutoDepthStencil = FALSE;
vd->d3dpp.AutoDepthStencilFormat = D3DFMT_D16;
vd->d3dpp.PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE; // Present without vsync
HRESULT hr = bd->pd3dDevice->CreateAdditionalSwapChain(&vd->d3dpp, &vd->SwapChain); IM_UNUSED(hr);
IM_ASSERT(hr == D3D_OK);
IM_ASSERT(vd->SwapChain != NULL);
}
static void ImGui_ImplDX9_DestroyWindow(ImGuiViewport* viewport)
{
// The main viewport (owned by the application) will always have RendererUserData == NULL since we didn't create the data for it.
if (ImGui_ImplDX9_ViewportData* vd = (ImGui_ImplDX9_ViewportData*)viewport->RendererUserData)
{
if (vd->SwapChain)
vd->SwapChain->Release();
vd->SwapChain = NULL;
ZeroMemory(&vd->d3dpp, sizeof(D3DPRESENT_PARAMETERS));
IM_DELETE(vd);
}
viewport->RendererUserData = NULL;
}
static void ImGui_ImplDX9_SetWindowSize(ImGuiViewport* viewport, ImVec2 size)
{
ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData();
ImGui_ImplDX9_ViewportData* vd = (ImGui_ImplDX9_ViewportData*)viewport->RendererUserData;
if (vd->SwapChain)
{
vd->SwapChain->Release();
vd->SwapChain = NULL;
vd->d3dpp.BackBufferWidth = (UINT)size.x;
vd->d3dpp.BackBufferHeight = (UINT)size.y;
HRESULT hr = bd->pd3dDevice->CreateAdditionalSwapChain(&vd->d3dpp, &vd->SwapChain); IM_UNUSED(hr);
IM_ASSERT(hr == D3D_OK);
}
}
static void ImGui_ImplDX9_RenderWindow(ImGuiViewport* viewport, void*)
{
ImGui_ImplDX9_Data* bd = ImGui_ImplDX9_GetBackendData();
ImGui_ImplDX9_ViewportData* vd = (ImGui_ImplDX9_ViewportData*)viewport->RendererUserData;
ImVec4 clear_color = ImVec4(0.0f, 0.0f, 0.0f, 1.0f);
LPDIRECT3DSURFACE9 render_target = NULL;
LPDIRECT3DSURFACE9 last_render_target = NULL;
LPDIRECT3DSURFACE9 last_depth_stencil = NULL;
vd->SwapChain->GetBackBuffer(0, D3DBACKBUFFER_TYPE_MONO, &render_target);
bd->pd3dDevice->GetRenderTarget(0, &last_render_target);
bd->pd3dDevice->GetDepthStencilSurface(&last_depth_stencil);
bd->pd3dDevice->SetRenderTarget(0, render_target);
bd->pd3dDevice->SetDepthStencilSurface(NULL);
if (!(viewport->Flags & ImGuiViewportFlags_NoRendererClear))
{
D3DCOLOR clear_col_dx = D3DCOLOR_RGBA((int)(clear_color.x*255.0f), (int)(clear_color.y*255.0f), (int)(clear_color.z*255.0f), (int)(clear_color.w*255.0f));
bd->pd3dDevice->Clear(0, NULL, D3DCLEAR_TARGET, clear_col_dx, 1.0f, 0);
}
ImGui_ImplDX9_RenderDrawData(viewport->DrawData);
// Restore render target
bd->pd3dDevice->SetRenderTarget(0, last_render_target);
bd->pd3dDevice->SetDepthStencilSurface(last_depth_stencil);
render_target->Release();
last_render_target->Release();
if (last_depth_stencil) last_depth_stencil->Release();
}
static void ImGui_ImplDX9_SwapBuffers(ImGuiViewport* viewport, void*)
{
ImGui_ImplDX9_ViewportData* vd = (ImGui_ImplDX9_ViewportData*)viewport->RendererUserData;
HRESULT hr = vd->SwapChain->Present(NULL, NULL, vd->d3dpp.hDeviceWindow, NULL, 0);
// Let main application handle D3DERR_DEVICELOST by resetting the device.
IM_ASSERT(hr == D3D_OK || hr == D3DERR_DEVICELOST);
}
static void ImGui_ImplDX9_InitPlatformInterface()
{
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
platform_io.Renderer_CreateWindow = ImGui_ImplDX9_CreateWindow;
platform_io.Renderer_DestroyWindow = ImGui_ImplDX9_DestroyWindow;
platform_io.Renderer_SetWindowSize = ImGui_ImplDX9_SetWindowSize;
platform_io.Renderer_RenderWindow = ImGui_ImplDX9_RenderWindow;
platform_io.Renderer_SwapBuffers = ImGui_ImplDX9_SwapBuffers;
}
static void ImGui_ImplDX9_ShutdownPlatformInterface()
{
ImGui::DestroyPlatformWindows();
}
static void ImGui_ImplDX9_CreateDeviceObjectsForPlatformWindows()
{
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
for (int i = 1; i < platform_io.Viewports.Size; i++)
if (!platform_io.Viewports[i]->RendererUserData)
ImGui_ImplDX9_CreateWindow(platform_io.Viewports[i]);
}
static void ImGui_ImplDX9_InvalidateDeviceObjectsForPlatformWindows()
{
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
for (int i = 1; i < platform_io.Viewports.Size; i++)
if (platform_io.Viewports[i]->RendererUserData)
ImGui_ImplDX9_DestroyWindow(platform_io.Viewports[i]);
}

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// dear imgui: Renderer Backend for DirectX9
// This needs to be used along with a Platform Backend (e.g. Win32)
// Implemented features:
// [X] Renderer: User texture binding. Use 'LPDIRECT3DTEXTURE9' as ImTextureID. Read the FAQ about ImTextureID!
// [X] Renderer: Multi-viewport support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
// [X] Renderer: Support for large meshes (64k+ vertices) with 16-bit indices.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
#pragma once
#include "imgui.h" // IMGUI_IMPL_API
struct IDirect3DDevice9;
IMGUI_IMPL_API bool ImGui_ImplDX9_Init(IDirect3DDevice9* device);
IMGUI_IMPL_API void ImGui_ImplDX9_Shutdown();
IMGUI_IMPL_API void ImGui_ImplDX9_NewFrame();
IMGUI_IMPL_API void ImGui_ImplDX9_RenderDrawData(ImDrawData* draw_data);
// Use if you want to reset your rendering device without losing Dear ImGui state.
IMGUI_IMPL_API bool ImGui_ImplDX9_CreateDeviceObjects();
IMGUI_IMPL_API void ImGui_ImplDX9_InvalidateDeviceObjects();

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// dear imgui: Platform Backend for GLFW
// This needs to be used along with a Renderer (e.g. OpenGL3, Vulkan, WebGPU..)
// (Info: GLFW is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan graphics context creation, etc.)
// (Requires: GLFW 3.1+. Prefer GLFW 3.3+ for full feature support.)
// Implemented features:
// [X] Platform: Clipboard support.
// [X] Platform: Gamepad support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
// [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange' (note: the resizing cursors requires GLFW 3.4+).
// [X] Platform: Keyboard arrays indexed using GLFW_KEY_* codes, e.g. ImGui::IsKeyPressed(GLFW_KEY_SPACE).
// [X] Platform: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
// Issues:
// [ ] Platform: Multi-viewport support: ParentViewportID not honored, and so io.ConfigViewportsNoDefaultParent has no effect (minor).
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2021-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
// 2021-08-17: *BREAKING CHANGE*: Now using glfwSetWindowFocusCallback() to calling io.AddFocusEvent(). If you called ImGui_ImplGlfw_InitXXX() with install_callbacks = false, you MUST install glfwSetWindowFocusCallback() and forward it to the backend via ImGui_ImplGlfw_WindowFocusCallback().
// 2021-07-29: *BREAKING CHANGE*: Now using glfwSetCursorEnterCallback(). MousePos is correctly reported when the host platform window is hovered but not focused. If you called ImGui_ImplGlfw_InitXXX() with install_callbacks = false, you MUST install glfwSetWindowFocusCallback() callback and forward it to the backend via ImGui_ImplGlfw_CursorEnterCallback().
// 2021-06-29: Reorganized backend to pull data from a single structure to facilitate usage with multiple-contexts (all g_XXXX access changed to bd->XXXX).
// 2020-01-17: Inputs: Disable error callback while assigning mouse cursors because some X11 setup don't have them and it generates errors.
// 2019-12-05: Inputs: Added support for new mouse cursors added in GLFW 3.4+ (resizing cursors, not allowed cursor).
// 2019-10-18: Misc: Previously installed user callbacks are now restored on shutdown.
// 2019-07-21: Inputs: Added mapping for ImGuiKey_KeyPadEnter.
// 2019-05-11: Inputs: Don't filter value from character callback before calling AddInputCharacter().
// 2019-03-12: Misc: Preserve DisplayFramebufferScale when main window is minimized.
// 2018-11-30: Misc: Setting up io.BackendPlatformName so it can be displayed in the About Window.
// 2018-11-07: Inputs: When installing our GLFW callbacks, we save user's previously installed ones - if any - and chain call them.
// 2018-08-01: Inputs: Workaround for Emscripten which doesn't seem to handle focus related calls.
// 2018-06-29: Inputs: Added support for the ImGuiMouseCursor_Hand cursor.
// 2018-06-08: Misc: Extracted imgui_impl_glfw.cpp/.h away from the old combined GLFW+OpenGL/Vulkan examples.
// 2018-03-20: Misc: Setup io.BackendFlags ImGuiBackendFlags_HasMouseCursors flag + honor ImGuiConfigFlags_NoMouseCursorChange flag.
// 2018-02-20: Inputs: Added support for mouse cursors (ImGui::GetMouseCursor() value, passed to glfwSetCursor()).
// 2018-02-06: Misc: Removed call to ImGui::Shutdown() which is not available from 1.60 WIP, user needs to call CreateContext/DestroyContext themselves.
// 2018-02-06: Inputs: Added mapping for ImGuiKey_Space.
// 2018-01-25: Inputs: Added gamepad support if ImGuiConfigFlags_NavEnableGamepad is set.
// 2018-01-25: Inputs: Honoring the io.WantSetMousePos by repositioning the mouse (when using navigation and ImGuiConfigFlags_NavMoveMouse is set).
// 2018-01-20: Inputs: Added Horizontal Mouse Wheel support.
// 2018-01-18: Inputs: Added mapping for ImGuiKey_Insert.
// 2017-08-25: Inputs: MousePos set to -FLT_MAX,-FLT_MAX when mouse is unavailable/missing (instead of -1,-1).
// 2016-10-15: Misc: Added a void* user_data parameter to Clipboard function handlers.
#include "imgui.h"
#include "imgui_impl_glfw.h"
// GLFW
#include <GLFW/glfw3.h>
#ifdef _WIN32
#undef APIENTRY
#define GLFW_EXPOSE_NATIVE_WIN32
#include <GLFW/glfw3native.h> // for glfwGetWin32Window
#endif
#define GLFW_HAS_WINDOW_TOPMOST (GLFW_VERSION_MAJOR * 1000 + GLFW_VERSION_MINOR * 100 >= 3200) // 3.2+ GLFW_FLOATING
#define GLFW_HAS_WINDOW_HOVERED (GLFW_VERSION_MAJOR * 1000 + GLFW_VERSION_MINOR * 100 >= 3300) // 3.3+ GLFW_HOVERED
#define GLFW_HAS_WINDOW_ALPHA (GLFW_VERSION_MAJOR * 1000 + GLFW_VERSION_MINOR * 100 >= 3300) // 3.3+ glfwSetWindowOpacity
#define GLFW_HAS_PER_MONITOR_DPI (GLFW_VERSION_MAJOR * 1000 + GLFW_VERSION_MINOR * 100 >= 3300) // 3.3+ glfwGetMonitorContentScale
#define GLFW_HAS_VULKAN (GLFW_VERSION_MAJOR * 1000 + GLFW_VERSION_MINOR * 100 >= 3200) // 3.2+ glfwCreateWindowSurface
#define GLFW_HAS_FOCUS_WINDOW (GLFW_VERSION_MAJOR * 1000 + GLFW_VERSION_MINOR * 100 >= 3200) // 3.2+ glfwFocusWindow
#define GLFW_HAS_FOCUS_ON_SHOW (GLFW_VERSION_MAJOR * 1000 + GLFW_VERSION_MINOR * 100 >= 3300) // 3.3+ GLFW_FOCUS_ON_SHOW
#define GLFW_HAS_MONITOR_WORK_AREA (GLFW_VERSION_MAJOR * 1000 + GLFW_VERSION_MINOR * 100 >= 3300) // 3.3+ glfwGetMonitorWorkarea
#define GLFW_HAS_OSX_WINDOW_POS_FIX (GLFW_VERSION_MAJOR * 1000 + GLFW_VERSION_MINOR * 100 + GLFW_VERSION_REVISION * 10 >= 3310) // 3.3.1+ Fixed: Resizing window repositions it on MacOS #1553
#ifdef GLFW_RESIZE_NESW_CURSOR // Let's be nice to people who pulled GLFW between 2019-04-16 (3.4 define) and 2019-11-29 (cursors defines) // FIXME: Remove when GLFW 3.4 is released?
#define GLFW_HAS_NEW_CURSORS (GLFW_VERSION_MAJOR * 1000 + GLFW_VERSION_MINOR * 100 >= 3400) // 3.4+ GLFW_RESIZE_ALL_CURSOR, GLFW_RESIZE_NESW_CURSOR, GLFW_RESIZE_NWSE_CURSOR, GLFW_NOT_ALLOWED_CURSOR
#else
#define GLFW_HAS_NEW_CURSORS (0)
#endif
#ifdef GLFW_MOUSE_PASSTHROUGH // Let's be nice to people who pulled GLFW between 2019-04-16 (3.4 define) and 2020-07-17 (passthrough)
#define GLFW_HAS_MOUSE_PASSTHROUGH (GLFW_VERSION_MAJOR * 1000 + GLFW_VERSION_MINOR * 100 >= 3400) // 3.4+ GLFW_MOUSE_PASSTHROUGH
#else
#define GLFW_HAS_MOUSE_PASSTHROUGH (0)
#endif
// GLFW data
enum GlfwClientApi
{
GlfwClientApi_Unknown,
GlfwClientApi_OpenGL,
GlfwClientApi_Vulkan
};
struct ImGui_ImplGlfw_Data
{
GLFWwindow* Window;
GlfwClientApi ClientApi;
double Time;
GLFWwindow* MouseWindow;
bool MouseJustPressed[ImGuiMouseButton_COUNT];
GLFWcursor* MouseCursors[ImGuiMouseCursor_COUNT];
GLFWwindow* KeyOwnerWindows[512];
bool InstalledCallbacks;
bool WantUpdateMonitors;
// Chain GLFW callbacks: our callbacks will call the user's previously installed callbacks, if any.
GLFWwindowfocusfun PrevUserCallbackWindowFocus;
GLFWcursorenterfun PrevUserCallbackCursorEnter;
GLFWmousebuttonfun PrevUserCallbackMousebutton;
GLFWscrollfun PrevUserCallbackScroll;
GLFWkeyfun PrevUserCallbackKey;
GLFWcharfun PrevUserCallbackChar;
GLFWmonitorfun PrevUserCallbackMonitor;
ImGui_ImplGlfw_Data() { memset(this, 0, sizeof(*this)); }
};
// Backend data stored in io.BackendPlatformUserData to allow support for multiple Dear ImGui contexts
// It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts.
// FIXME: multi-context support is not well tested and probably dysfunctional in this backend.
// - Because glfwPollEvents() process all windows and some events may be called outside of it, you will need to register your own callbacks
// (passing install_callbacks=false in ImGui_ImplGlfw_InitXXX functions), set the current dear imgui context and then call our callbacks.
// - Otherwise we may need to store a GLFWWindow* -> ImGuiContext* map and handle this in the backend, adding a little bit of extra complexity to it.
// FIXME: some shared resources (mouse cursor shape, gamepad) are mishandled when using multi-context.
static ImGui_ImplGlfw_Data* ImGui_ImplGlfw_GetBackendData()
{
return ImGui::GetCurrentContext() ? (ImGui_ImplGlfw_Data*)ImGui::GetIO().BackendPlatformUserData : NULL;
}
// Forward Declarations
static void ImGui_ImplGlfw_UpdateMonitors();
static void ImGui_ImplGlfw_InitPlatformInterface();
static void ImGui_ImplGlfw_ShutdownPlatformInterface();
// Functions
static const char* ImGui_ImplGlfw_GetClipboardText(void* user_data)
{
return glfwGetClipboardString((GLFWwindow*)user_data);
}
static void ImGui_ImplGlfw_SetClipboardText(void* user_data, const char* text)
{
glfwSetClipboardString((GLFWwindow*)user_data, text);
}
void ImGui_ImplGlfw_MouseButtonCallback(GLFWwindow* window, int button, int action, int mods)
{
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
if (bd->PrevUserCallbackMousebutton != NULL && window == bd->Window)
bd->PrevUserCallbackMousebutton(window, button, action, mods);
if (action == GLFW_PRESS && button >= 0 && button < IM_ARRAYSIZE(bd->MouseJustPressed))
bd->MouseJustPressed[button] = true;
}
void ImGui_ImplGlfw_ScrollCallback(GLFWwindow* window, double xoffset, double yoffset)
{
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
if (bd->PrevUserCallbackScroll != NULL && window == bd->Window)
bd->PrevUserCallbackScroll(window, xoffset, yoffset);
ImGuiIO& io = ImGui::GetIO();
io.MouseWheelH += (float)xoffset;
io.MouseWheel += (float)yoffset;
}
void ImGui_ImplGlfw_KeyCallback(GLFWwindow* window, int key, int scancode, int action, int mods)
{
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
if (bd->PrevUserCallbackKey != NULL && window == bd->Window)
bd->PrevUserCallbackKey(window, key, scancode, action, mods);
ImGuiIO& io = ImGui::GetIO();
if (key >= 0 && key < IM_ARRAYSIZE(io.KeysDown))
{
if (action == GLFW_PRESS)
{
io.KeysDown[key] = true;
bd->KeyOwnerWindows[key] = window;
}
if (action == GLFW_RELEASE)
{
io.KeysDown[key] = false;
bd->KeyOwnerWindows[key] = NULL;
}
}
// Modifiers are not reliable across systems
io.KeyCtrl = io.KeysDown[GLFW_KEY_LEFT_CONTROL] || io.KeysDown[GLFW_KEY_RIGHT_CONTROL];
io.KeyShift = io.KeysDown[GLFW_KEY_LEFT_SHIFT] || io.KeysDown[GLFW_KEY_RIGHT_SHIFT];
io.KeyAlt = io.KeysDown[GLFW_KEY_LEFT_ALT] || io.KeysDown[GLFW_KEY_RIGHT_ALT];
#ifdef _WIN32
io.KeySuper = false;
#else
io.KeySuper = io.KeysDown[GLFW_KEY_LEFT_SUPER] || io.KeysDown[GLFW_KEY_RIGHT_SUPER];
#endif
}
void ImGui_ImplGlfw_WindowFocusCallback(GLFWwindow* window, int focused)
{
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
if (bd->PrevUserCallbackWindowFocus != NULL && window == bd->Window)
bd->PrevUserCallbackWindowFocus(window, focused);
ImGuiIO& io = ImGui::GetIO();
io.AddFocusEvent(focused != 0);
}
void ImGui_ImplGlfw_CursorEnterCallback(GLFWwindow* window, int entered)
{
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
if (bd->PrevUserCallbackCursorEnter != NULL && window == bd->Window)
bd->PrevUserCallbackCursorEnter(window, entered);
if (entered)
bd->MouseWindow = window;
if (!entered && bd->MouseWindow == window)
bd->MouseWindow = NULL;
}
void ImGui_ImplGlfw_CharCallback(GLFWwindow* window, unsigned int c)
{
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
if (bd->PrevUserCallbackChar != NULL && window == bd->Window)
bd->PrevUserCallbackChar(window, c);
ImGuiIO& io = ImGui::GetIO();
io.AddInputCharacter(c);
}
void ImGui_ImplGlfw_MonitorCallback(GLFWmonitor*, int)
{
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
bd->WantUpdateMonitors = true;
}
static bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks, GlfwClientApi client_api)
{
ImGuiIO& io = ImGui::GetIO();
IM_ASSERT(io.BackendPlatformUserData == NULL && "Already initialized a platform backend!");
// Setup backend capabilities flags
ImGui_ImplGlfw_Data* bd = IM_NEW(ImGui_ImplGlfw_Data)();
io.BackendPlatformUserData = (void*)bd;
io.BackendPlatformName = "imgui_impl_glfw";
io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors; // We can honor GetMouseCursor() values (optional)
io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos; // We can honor io.WantSetMousePos requests (optional, rarely used)
io.BackendFlags |= ImGuiBackendFlags_PlatformHasViewports; // We can create multi-viewports on the Platform side (optional)
#if GLFW_HAS_MOUSE_PASSTHROUGH || (GLFW_HAS_WINDOW_HOVERED && defined(_WIN32))
io.BackendFlags |= ImGuiBackendFlags_HasMouseHoveredViewport; // We can set io.MouseHoveredViewport correctly (optional, not easy)
#endif
bd->Window = window;
bd->Time = 0.0;
bd->WantUpdateMonitors = true;
// Keyboard mapping. Dear ImGui will use those indices to peek into the io.KeysDown[] array.
io.KeyMap[ImGuiKey_Tab] = GLFW_KEY_TAB;
io.KeyMap[ImGuiKey_LeftArrow] = GLFW_KEY_LEFT;
io.KeyMap[ImGuiKey_RightArrow] = GLFW_KEY_RIGHT;
io.KeyMap[ImGuiKey_UpArrow] = GLFW_KEY_UP;
io.KeyMap[ImGuiKey_DownArrow] = GLFW_KEY_DOWN;
io.KeyMap[ImGuiKey_PageUp] = GLFW_KEY_PAGE_UP;
io.KeyMap[ImGuiKey_PageDown] = GLFW_KEY_PAGE_DOWN;
io.KeyMap[ImGuiKey_Home] = GLFW_KEY_HOME;
io.KeyMap[ImGuiKey_End] = GLFW_KEY_END;
io.KeyMap[ImGuiKey_Insert] = GLFW_KEY_INSERT;
io.KeyMap[ImGuiKey_Delete] = GLFW_KEY_DELETE;
io.KeyMap[ImGuiKey_Backspace] = GLFW_KEY_BACKSPACE;
io.KeyMap[ImGuiKey_Space] = GLFW_KEY_SPACE;
io.KeyMap[ImGuiKey_Enter] = GLFW_KEY_ENTER;
io.KeyMap[ImGuiKey_Escape] = GLFW_KEY_ESCAPE;
io.KeyMap[ImGuiKey_KeyPadEnter] = GLFW_KEY_KP_ENTER;
io.KeyMap[ImGuiKey_A] = GLFW_KEY_A;
io.KeyMap[ImGuiKey_C] = GLFW_KEY_C;
io.KeyMap[ImGuiKey_V] = GLFW_KEY_V;
io.KeyMap[ImGuiKey_X] = GLFW_KEY_X;
io.KeyMap[ImGuiKey_Y] = GLFW_KEY_Y;
io.KeyMap[ImGuiKey_Z] = GLFW_KEY_Z;
io.SetClipboardTextFn = ImGui_ImplGlfw_SetClipboardText;
io.GetClipboardTextFn = ImGui_ImplGlfw_GetClipboardText;
io.ClipboardUserData = bd->Window;
// Create mouse cursors
// (By design, on X11 cursors are user configurable and some cursors may be missing. When a cursor doesn't exist,
// GLFW will emit an error which will often be printed by the app, so we temporarily disable error reporting.
// Missing cursors will return NULL and our _UpdateMouseCursor() function will use the Arrow cursor instead.)
GLFWerrorfun prev_error_callback = glfwSetErrorCallback(NULL);
bd->MouseCursors[ImGuiMouseCursor_Arrow] = glfwCreateStandardCursor(GLFW_ARROW_CURSOR);
bd->MouseCursors[ImGuiMouseCursor_TextInput] = glfwCreateStandardCursor(GLFW_IBEAM_CURSOR);
bd->MouseCursors[ImGuiMouseCursor_ResizeNS] = glfwCreateStandardCursor(GLFW_VRESIZE_CURSOR);
bd->MouseCursors[ImGuiMouseCursor_ResizeEW] = glfwCreateStandardCursor(GLFW_HRESIZE_CURSOR);
bd->MouseCursors[ImGuiMouseCursor_Hand] = glfwCreateStandardCursor(GLFW_HAND_CURSOR);
#if GLFW_HAS_NEW_CURSORS
bd->MouseCursors[ImGuiMouseCursor_ResizeAll] = glfwCreateStandardCursor(GLFW_RESIZE_ALL_CURSOR);
bd->MouseCursors[ImGuiMouseCursor_ResizeNESW] = glfwCreateStandardCursor(GLFW_RESIZE_NESW_CURSOR);
bd->MouseCursors[ImGuiMouseCursor_ResizeNWSE] = glfwCreateStandardCursor(GLFW_RESIZE_NWSE_CURSOR);
bd->MouseCursors[ImGuiMouseCursor_NotAllowed] = glfwCreateStandardCursor(GLFW_NOT_ALLOWED_CURSOR);
#else
bd->MouseCursors[ImGuiMouseCursor_ResizeAll] = glfwCreateStandardCursor(GLFW_ARROW_CURSOR);
bd->MouseCursors[ImGuiMouseCursor_ResizeNESW] = glfwCreateStandardCursor(GLFW_ARROW_CURSOR);
bd->MouseCursors[ImGuiMouseCursor_ResizeNWSE] = glfwCreateStandardCursor(GLFW_ARROW_CURSOR);
bd->MouseCursors[ImGuiMouseCursor_NotAllowed] = glfwCreateStandardCursor(GLFW_ARROW_CURSOR);
#endif
glfwSetErrorCallback(prev_error_callback);
// Chain GLFW callbacks: our callbacks will call the user's previously installed callbacks, if any.
bd->PrevUserCallbackWindowFocus = NULL;
bd->PrevUserCallbackMousebutton = NULL;
bd->PrevUserCallbackScroll = NULL;
bd->PrevUserCallbackKey = NULL;
bd->PrevUserCallbackChar = NULL;
bd->PrevUserCallbackMonitor = NULL;
if (install_callbacks)
{
bd->InstalledCallbacks = true;
bd->PrevUserCallbackWindowFocus = glfwSetWindowFocusCallback(window, ImGui_ImplGlfw_WindowFocusCallback);
bd->PrevUserCallbackCursorEnter = glfwSetCursorEnterCallback(window, ImGui_ImplGlfw_CursorEnterCallback);
bd->PrevUserCallbackMousebutton = glfwSetMouseButtonCallback(window, ImGui_ImplGlfw_MouseButtonCallback);
bd->PrevUserCallbackScroll = glfwSetScrollCallback(window, ImGui_ImplGlfw_ScrollCallback);
bd->PrevUserCallbackKey = glfwSetKeyCallback(window, ImGui_ImplGlfw_KeyCallback);
bd->PrevUserCallbackChar = glfwSetCharCallback(window, ImGui_ImplGlfw_CharCallback);
bd->PrevUserCallbackMonitor = glfwSetMonitorCallback(ImGui_ImplGlfw_MonitorCallback);
}
// Update monitors the first time (note: monitor callback are broken in GLFW 3.2 and earlier, see github.com/glfw/glfw/issues/784)
ImGui_ImplGlfw_UpdateMonitors();
glfwSetMonitorCallback(ImGui_ImplGlfw_MonitorCallback);
// Our mouse update function expect PlatformHandle to be filled for the main viewport
ImGuiViewport* main_viewport = ImGui::GetMainViewport();
main_viewport->PlatformHandle = (void*)bd->Window;
#ifdef _WIN32
main_viewport->PlatformHandleRaw = glfwGetWin32Window(bd->Window);
#endif
if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
ImGui_ImplGlfw_InitPlatformInterface();
bd->ClientApi = client_api;
return true;
}
bool ImGui_ImplGlfw_InitForOpenGL(GLFWwindow* window, bool install_callbacks)
{
return ImGui_ImplGlfw_Init(window, install_callbacks, GlfwClientApi_OpenGL);
}
bool ImGui_ImplGlfw_InitForVulkan(GLFWwindow* window, bool install_callbacks)
{
return ImGui_ImplGlfw_Init(window, install_callbacks, GlfwClientApi_Vulkan);
}
bool ImGui_ImplGlfw_InitForOther(GLFWwindow* window, bool install_callbacks)
{
return ImGui_ImplGlfw_Init(window, install_callbacks, GlfwClientApi_Unknown);
}
void ImGui_ImplGlfw_Shutdown()
{
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
IM_ASSERT(bd != NULL && "No platform backend to shutdown, or already shutdown?");
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplGlfw_ShutdownPlatformInterface();
if (bd->InstalledCallbacks)
{
glfwSetWindowFocusCallback(bd->Window, bd->PrevUserCallbackWindowFocus);
glfwSetCursorEnterCallback(bd->Window, bd->PrevUserCallbackCursorEnter);
glfwSetMouseButtonCallback(bd->Window, bd->PrevUserCallbackMousebutton);
glfwSetScrollCallback(bd->Window, bd->PrevUserCallbackScroll);
glfwSetKeyCallback(bd->Window, bd->PrevUserCallbackKey);
glfwSetCharCallback(bd->Window, bd->PrevUserCallbackChar);
glfwSetMonitorCallback(bd->PrevUserCallbackMonitor);
}
for (ImGuiMouseCursor cursor_n = 0; cursor_n < ImGuiMouseCursor_COUNT; cursor_n++)
glfwDestroyCursor(bd->MouseCursors[cursor_n]);
io.BackendPlatformName = NULL;
io.BackendPlatformUserData = NULL;
IM_DELETE(bd);
}
static void ImGui_ImplGlfw_UpdateMousePosAndButtons()
{
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
ImGuiIO& io = ImGui::GetIO();
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
const ImVec2 mouse_pos_prev = io.MousePos;
io.MousePos = ImVec2(-FLT_MAX, -FLT_MAX);
io.MouseHoveredViewport = 0;
// Update mouse buttons
// (if a mouse press event came, always pass it as "mouse held this frame", so we don't miss click-release events that are shorter than 1 frame)
for (int i = 0; i < IM_ARRAYSIZE(io.MouseDown); i++)
{
io.MouseDown[i] = bd->MouseJustPressed[i] || glfwGetMouseButton(bd->Window, i) != 0;
bd->MouseJustPressed[i] = false;
}
for (int n = 0; n < platform_io.Viewports.Size; n++)
{
ImGuiViewport* viewport = platform_io.Viewports[n];
GLFWwindow* window = (GLFWwindow*)viewport->PlatformHandle;
#ifdef __EMSCRIPTEN__
const bool focused = true;
#else
const bool focused = glfwGetWindowAttrib(window, GLFW_FOCUSED) != 0;
#endif
GLFWwindow* mouse_window = (bd->MouseWindow == window || focused) ? window : NULL;
// Update mouse buttons
if (focused)
for (int i = 0; i < IM_ARRAYSIZE(io.MouseDown); i++)
io.MouseDown[i] |= glfwGetMouseButton(window, i) != 0;
// Set OS mouse position from Dear ImGui if requested (rarely used, only when ImGuiConfigFlags_NavEnableSetMousePos is enabled by user)
// (When multi-viewports are enabled, all Dear ImGui positions are same as OS positions)
if (io.WantSetMousePos && focused)
glfwSetCursorPos(window, (double)(mouse_pos_prev.x - viewport->Pos.x), (double)(mouse_pos_prev.y - viewport->Pos.y));
// Set Dear ImGui mouse position from OS position
if (mouse_window != NULL)
{
double mouse_x, mouse_y;
glfwGetCursorPos(mouse_window, &mouse_x, &mouse_y);
if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
{
// Multi-viewport mode: mouse position in OS absolute coordinates (io.MousePos is (0,0) when the mouse is on the upper-left of the primary monitor)
int window_x, window_y;
glfwGetWindowPos(window, &window_x, &window_y);
io.MousePos = ImVec2((float)mouse_x + window_x, (float)mouse_y + window_y);
}
else
{
// Single viewport mode: mouse position in client window coordinates (io.MousePos is (0,0) when the mouse is on the upper-left corner of the app window)
io.MousePos = ImVec2((float)mouse_x, (float)mouse_y);
}
}
// (Optional) When using multiple viewports: set io.MouseHoveredViewport to the viewport the OS mouse cursor is hovering.
// Important: this information is not easy to provide and many high-level windowing library won't be able to provide it correctly, because
// - This is _ignoring_ viewports with the ImGuiViewportFlags_NoInputs flag (pass-through windows).
// - This is _regardless_ of whether another viewport is focused or being dragged from.
// If ImGuiBackendFlags_HasMouseHoveredViewport is not set by the backend, imgui will ignore this field and infer the information by relying on the
// rectangles and last focused time of every viewports it knows about. It will be unaware of other windows that may be sitting between or over your windows.
// [GLFW] FIXME: This is currently only correct on Win32. See what we do below with the WM_NCHITTEST, missing an equivalent for other systems.
// See https://github.com/glfw/glfw/issues/1236 if you want to help in making this a GLFW feature.
#if GLFW_HAS_MOUSE_PASSTHROUGH || (GLFW_HAS_WINDOW_HOVERED && defined(_WIN32))
const bool window_no_input = (viewport->Flags & ImGuiViewportFlags_NoInputs) != 0;
#if GLFW_HAS_MOUSE_PASSTHROUGH
glfwSetWindowAttrib(window, GLFW_MOUSE_PASSTHROUGH, window_no_input);
#endif
if (glfwGetWindowAttrib(window, GLFW_HOVERED) && !window_no_input)
io.MouseHoveredViewport = viewport->ID;
#endif
}
}
static void ImGui_ImplGlfw_UpdateMouseCursor()
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
if ((io.ConfigFlags & ImGuiConfigFlags_NoMouseCursorChange) || glfwGetInputMode(bd->Window, GLFW_CURSOR) == GLFW_CURSOR_DISABLED)
return;
ImGuiMouseCursor imgui_cursor = ImGui::GetMouseCursor();
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
for (int n = 0; n < platform_io.Viewports.Size; n++)
{
GLFWwindow* window = (GLFWwindow*)platform_io.Viewports[n]->PlatformHandle;
if (imgui_cursor == ImGuiMouseCursor_None || io.MouseDrawCursor)
{
// Hide OS mouse cursor if imgui is drawing it or if it wants no cursor
glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_HIDDEN);
}
else
{
// Show OS mouse cursor
// FIXME-PLATFORM: Unfocused windows seems to fail changing the mouse cursor with GLFW 3.2, but 3.3 works here.
glfwSetCursor(window, bd->MouseCursors[imgui_cursor] ? bd->MouseCursors[imgui_cursor] : bd->MouseCursors[ImGuiMouseCursor_Arrow]);
glfwSetInputMode(window, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
}
}
}
static void ImGui_ImplGlfw_UpdateGamepads()
{
ImGuiIO& io = ImGui::GetIO();
memset(io.NavInputs, 0, sizeof(io.NavInputs));
if ((io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) == 0)
return;
// Update gamepad inputs
#define MAP_BUTTON(NAV_NO, BUTTON_NO) { if (buttons_count > BUTTON_NO && buttons[BUTTON_NO] == GLFW_PRESS) io.NavInputs[NAV_NO] = 1.0f; }
#define MAP_ANALOG(NAV_NO, AXIS_NO, V0, V1) { float v = (axes_count > AXIS_NO) ? axes[AXIS_NO] : V0; v = (v - V0) / (V1 - V0); if (v > 1.0f) v = 1.0f; if (io.NavInputs[NAV_NO] < v) io.NavInputs[NAV_NO] = v; }
int axes_count = 0, buttons_count = 0;
const float* axes = glfwGetJoystickAxes(GLFW_JOYSTICK_1, &axes_count);
const unsigned char* buttons = glfwGetJoystickButtons(GLFW_JOYSTICK_1, &buttons_count);
MAP_BUTTON(ImGuiNavInput_Activate, 0); // Cross / A
MAP_BUTTON(ImGuiNavInput_Cancel, 1); // Circle / B
MAP_BUTTON(ImGuiNavInput_Menu, 2); // Square / X
MAP_BUTTON(ImGuiNavInput_Input, 3); // Triangle / Y
MAP_BUTTON(ImGuiNavInput_DpadLeft, 13); // D-Pad Left
MAP_BUTTON(ImGuiNavInput_DpadRight, 11); // D-Pad Right
MAP_BUTTON(ImGuiNavInput_DpadUp, 10); // D-Pad Up
MAP_BUTTON(ImGuiNavInput_DpadDown, 12); // D-Pad Down
MAP_BUTTON(ImGuiNavInput_FocusPrev, 4); // L1 / LB
MAP_BUTTON(ImGuiNavInput_FocusNext, 5); // R1 / RB
MAP_BUTTON(ImGuiNavInput_TweakSlow, 4); // L1 / LB
MAP_BUTTON(ImGuiNavInput_TweakFast, 5); // R1 / RB
MAP_ANALOG(ImGuiNavInput_LStickLeft, 0, -0.3f, -0.9f);
MAP_ANALOG(ImGuiNavInput_LStickRight,0, +0.3f, +0.9f);
MAP_ANALOG(ImGuiNavInput_LStickUp, 1, +0.3f, +0.9f);
MAP_ANALOG(ImGuiNavInput_LStickDown, 1, -0.3f, -0.9f);
#undef MAP_BUTTON
#undef MAP_ANALOG
if (axes_count > 0 && buttons_count > 0)
io.BackendFlags |= ImGuiBackendFlags_HasGamepad;
else
io.BackendFlags &= ~ImGuiBackendFlags_HasGamepad;
}
static void ImGui_ImplGlfw_UpdateMonitors()
{
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
int monitors_count = 0;
GLFWmonitor** glfw_monitors = glfwGetMonitors(&monitors_count);
platform_io.Monitors.resize(0);
for (int n = 0; n < monitors_count; n++)
{
ImGuiPlatformMonitor monitor;
int x, y;
glfwGetMonitorPos(glfw_monitors[n], &x, &y);
const GLFWvidmode* vid_mode = glfwGetVideoMode(glfw_monitors[n]);
monitor.MainPos = monitor.WorkPos = ImVec2((float)x, (float)y);
monitor.MainSize = monitor.WorkSize = ImVec2((float)vid_mode->width, (float)vid_mode->height);
#if GLFW_HAS_MONITOR_WORK_AREA
int w, h;
glfwGetMonitorWorkarea(glfw_monitors[n], &x, &y, &w, &h);
if (w > 0 && h > 0) // Workaround a small GLFW issue reporting zero on monitor changes: https://github.com/glfw/glfw/pull/1761
{
monitor.WorkPos = ImVec2((float)x, (float)y);
monitor.WorkSize = ImVec2((float)w, (float)h);
}
#endif
#if GLFW_HAS_PER_MONITOR_DPI
// Warning: the validity of monitor DPI information on Windows depends on the application DPI awareness settings, which generally needs to be set in the manifest or at runtime.
float x_scale, y_scale;
glfwGetMonitorContentScale(glfw_monitors[n], &x_scale, &y_scale);
monitor.DpiScale = x_scale;
#endif
platform_io.Monitors.push_back(monitor);
}
bd->WantUpdateMonitors = false;
}
void ImGui_ImplGlfw_NewFrame()
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
IM_ASSERT(bd != NULL && "Did you call ImGui_ImplGlfw_InitForXXX()?");
// Setup display size (every frame to accommodate for window resizing)
int w, h;
int display_w, display_h;
glfwGetWindowSize(bd->Window, &w, &h);
glfwGetFramebufferSize(bd->Window, &display_w, &display_h);
io.DisplaySize = ImVec2((float)w, (float)h);
if (w > 0 && h > 0)
io.DisplayFramebufferScale = ImVec2((float)display_w / w, (float)display_h / h);
if (bd->WantUpdateMonitors)
ImGui_ImplGlfw_UpdateMonitors();
// Setup time step
double current_time = glfwGetTime();
io.DeltaTime = bd->Time > 0.0 ? (float)(current_time - bd->Time) : (float)(1.0f / 60.0f);
bd->Time = current_time;
ImGui_ImplGlfw_UpdateMousePosAndButtons();
ImGui_ImplGlfw_UpdateMouseCursor();
// Update game controllers (if enabled and available)
ImGui_ImplGlfw_UpdateGamepads();
}
//--------------------------------------------------------------------------------------------------------
// MULTI-VIEWPORT / PLATFORM INTERFACE SUPPORT
// This is an _advanced_ and _optional_ feature, allowing the backend to create and handle multiple viewports simultaneously.
// If you are new to dear imgui or creating a new binding for dear imgui, it is recommended that you completely ignore this section first..
//--------------------------------------------------------------------------------------------------------
// Helper structure we store in the void* RenderUserData field of each ImGuiViewport to easily retrieve our backend data.
struct ImGui_ImplGlfw_ViewportData
{
GLFWwindow* Window;
bool WindowOwned;
int IgnoreWindowPosEventFrame;
int IgnoreWindowSizeEventFrame;
ImGui_ImplGlfw_ViewportData() { Window = NULL; WindowOwned = false; IgnoreWindowSizeEventFrame = IgnoreWindowPosEventFrame = -1; }
~ImGui_ImplGlfw_ViewportData() { IM_ASSERT(Window == NULL); }
};
static void ImGui_ImplGlfw_WindowCloseCallback(GLFWwindow* window)
{
if (ImGuiViewport* viewport = ImGui::FindViewportByPlatformHandle(window))
viewport->PlatformRequestClose = true;
}
// GLFW may dispatch window pos/size events after calling glfwSetWindowPos()/glfwSetWindowSize().
// However: depending on the platform the callback may be invoked at different time:
// - on Windows it appears to be called within the glfwSetWindowPos()/glfwSetWindowSize() call
// - on Linux it is queued and invoked during glfwPollEvents()
// Because the event doesn't always fire on glfwSetWindowXXX() we use a frame counter tag to only
// ignore recent glfwSetWindowXXX() calls.
static void ImGui_ImplGlfw_WindowPosCallback(GLFWwindow* window, int, int)
{
if (ImGuiViewport* viewport = ImGui::FindViewportByPlatformHandle(window))
{
if (ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData)
{
bool ignore_event = (ImGui::GetFrameCount() <= vd->IgnoreWindowPosEventFrame + 1);
//data->IgnoreWindowPosEventFrame = -1;
if (ignore_event)
return;
}
viewport->PlatformRequestMove = true;
}
}
static void ImGui_ImplGlfw_WindowSizeCallback(GLFWwindow* window, int, int)
{
if (ImGuiViewport* viewport = ImGui::FindViewportByPlatformHandle(window))
{
if (ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData)
{
bool ignore_event = (ImGui::GetFrameCount() <= vd->IgnoreWindowSizeEventFrame + 1);
//data->IgnoreWindowSizeEventFrame = -1;
if (ignore_event)
return;
}
viewport->PlatformRequestResize = true;
}
}
static void ImGui_ImplGlfw_CreateWindow(ImGuiViewport* viewport)
{
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
ImGui_ImplGlfw_ViewportData* vd = IM_NEW(ImGui_ImplGlfw_ViewportData)();
viewport->PlatformUserData = vd;
// GLFW 3.2 unfortunately always set focus on glfwCreateWindow() if GLFW_VISIBLE is set, regardless of GLFW_FOCUSED
// With GLFW 3.3, the hint GLFW_FOCUS_ON_SHOW fixes this problem
glfwWindowHint(GLFW_VISIBLE, false);
glfwWindowHint(GLFW_FOCUSED, false);
#if GLFW_HAS_FOCUS_ON_SHOW
glfwWindowHint(GLFW_FOCUS_ON_SHOW, false);
#endif
glfwWindowHint(GLFW_DECORATED, (viewport->Flags & ImGuiViewportFlags_NoDecoration) ? false : true);
#if GLFW_HAS_WINDOW_TOPMOST
glfwWindowHint(GLFW_FLOATING, (viewport->Flags & ImGuiViewportFlags_TopMost) ? true : false);
#endif
GLFWwindow* share_window = (bd->ClientApi == GlfwClientApi_OpenGL) ? bd->Window : NULL;
vd->Window = glfwCreateWindow((int)viewport->Size.x, (int)viewport->Size.y, "No Title Yet", NULL, share_window);
vd->WindowOwned = true;
viewport->PlatformHandle = (void*)vd->Window;
#ifdef _WIN32
viewport->PlatformHandleRaw = glfwGetWin32Window(vd->Window);
#endif
glfwSetWindowPos(vd->Window, (int)viewport->Pos.x, (int)viewport->Pos.y);
// Install GLFW callbacks for secondary viewports
glfwSetWindowFocusCallback(vd->Window, ImGui_ImplGlfw_WindowFocusCallback);
glfwSetCursorEnterCallback(vd->Window, ImGui_ImplGlfw_CursorEnterCallback);
glfwSetMouseButtonCallback(vd->Window, ImGui_ImplGlfw_MouseButtonCallback);
glfwSetScrollCallback(vd->Window, ImGui_ImplGlfw_ScrollCallback);
glfwSetKeyCallback(vd->Window, ImGui_ImplGlfw_KeyCallback);
glfwSetCharCallback(vd->Window, ImGui_ImplGlfw_CharCallback);
glfwSetWindowCloseCallback(vd->Window, ImGui_ImplGlfw_WindowCloseCallback);
glfwSetWindowPosCallback(vd->Window, ImGui_ImplGlfw_WindowPosCallback);
glfwSetWindowSizeCallback(vd->Window, ImGui_ImplGlfw_WindowSizeCallback);
if (bd->ClientApi == GlfwClientApi_OpenGL)
{
glfwMakeContextCurrent(vd->Window);
glfwSwapInterval(0);
}
}
static void ImGui_ImplGlfw_DestroyWindow(ImGuiViewport* viewport)
{
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
if (ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData)
{
if (vd->WindowOwned)
{
#if !GLFW_HAS_MOUSE_PASSTHROUGH && GLFW_HAS_WINDOW_HOVERED && defined(_WIN32)
HWND hwnd = (HWND)viewport->PlatformHandleRaw;
::RemovePropA(hwnd, "IMGUI_VIEWPORT");
#endif
// Release any keys that were pressed in the window being destroyed and are still held down,
// because we will not receive any release events after window is destroyed.
for (int i = 0; i < IM_ARRAYSIZE(bd->KeyOwnerWindows); i++)
if (bd->KeyOwnerWindows[i] == vd->Window)
ImGui_ImplGlfw_KeyCallback(vd->Window, i, 0, GLFW_RELEASE, 0); // Later params are only used for main viewport, on which this function is never called.
glfwDestroyWindow(vd->Window);
}
vd->Window = NULL;
IM_DELETE(vd);
}
viewport->PlatformUserData = viewport->PlatformHandle = NULL;
}
// We have submitted https://github.com/glfw/glfw/pull/1568 to allow GLFW to support "transparent inputs".
// In the meanwhile we implement custom per-platform workarounds here (FIXME-VIEWPORT: Implement same work-around for Linux/OSX!)
#if !GLFW_HAS_MOUSE_PASSTHROUGH && GLFW_HAS_WINDOW_HOVERED && defined(_WIN32)
static WNDPROC g_GlfwWndProc = NULL;
static LRESULT CALLBACK WndProcNoInputs(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
if (msg == WM_NCHITTEST)
{
// Let mouse pass-through the window. This will allow the backend to set io.MouseHoveredViewport properly (which is OPTIONAL).
// The ImGuiViewportFlags_NoInputs flag is set while dragging a viewport, as want to detect the window behind the one we are dragging.
// If you cannot easily access those viewport flags from your windowing/event code: you may manually synchronize its state e.g. in
// your main loop after calling UpdatePlatformWindows(). Iterate all viewports/platform windows and pass the flag to your windowing system.
ImGuiViewport* viewport = (ImGuiViewport*)::GetPropA(hWnd, "IMGUI_VIEWPORT");
if (viewport->Flags & ImGuiViewportFlags_NoInputs)
return HTTRANSPARENT;
}
return ::CallWindowProc(g_GlfwWndProc, hWnd, msg, wParam, lParam);
}
#endif
static void ImGui_ImplGlfw_ShowWindow(ImGuiViewport* viewport)
{
ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData;
#if defined(_WIN32)
// GLFW hack: Hide icon from task bar
HWND hwnd = (HWND)viewport->PlatformHandleRaw;
if (viewport->Flags & ImGuiViewportFlags_NoTaskBarIcon)
{
LONG ex_style = ::GetWindowLong(hwnd, GWL_EXSTYLE);
ex_style &= ~WS_EX_APPWINDOW;
ex_style |= WS_EX_TOOLWINDOW;
::SetWindowLong(hwnd, GWL_EXSTYLE, ex_style);
}
// GLFW hack: install hook for WM_NCHITTEST message handler
#if !GLFW_HAS_MOUSE_PASSTHROUGH && GLFW_HAS_WINDOW_HOVERED && defined(_WIN32)
::SetPropA(hwnd, "IMGUI_VIEWPORT", viewport);
if (g_GlfwWndProc == NULL)
g_GlfwWndProc = (WNDPROC)::GetWindowLongPtr(hwnd, GWLP_WNDPROC);
::SetWindowLongPtr(hwnd, GWLP_WNDPROC, (LONG_PTR)WndProcNoInputs);
#endif
#if !GLFW_HAS_FOCUS_ON_SHOW
// GLFW hack: GLFW 3.2 has a bug where glfwShowWindow() also activates/focus the window.
// The fix was pushed to GLFW repository on 2018/01/09 and should be included in GLFW 3.3 via a GLFW_FOCUS_ON_SHOW window attribute.
// See https://github.com/glfw/glfw/issues/1189
// FIXME-VIEWPORT: Implement same work-around for Linux/OSX in the meanwhile.
if (viewport->Flags & ImGuiViewportFlags_NoFocusOnAppearing)
{
::ShowWindow(hwnd, SW_SHOWNA);
return;
}
#endif
#endif
glfwShowWindow(vd->Window);
}
static ImVec2 ImGui_ImplGlfw_GetWindowPos(ImGuiViewport* viewport)
{
ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData;
int x = 0, y = 0;
glfwGetWindowPos(vd->Window, &x, &y);
return ImVec2((float)x, (float)y);
}
static void ImGui_ImplGlfw_SetWindowPos(ImGuiViewport* viewport, ImVec2 pos)
{
ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData;
vd->IgnoreWindowPosEventFrame = ImGui::GetFrameCount();
glfwSetWindowPos(vd->Window, (int)pos.x, (int)pos.y);
}
static ImVec2 ImGui_ImplGlfw_GetWindowSize(ImGuiViewport* viewport)
{
ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData;
int w = 0, h = 0;
glfwGetWindowSize(vd->Window, &w, &h);
return ImVec2((float)w, (float)h);
}
static void ImGui_ImplGlfw_SetWindowSize(ImGuiViewport* viewport, ImVec2 size)
{
ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData;
#if __APPLE__ && !GLFW_HAS_OSX_WINDOW_POS_FIX
// Native OS windows are positioned from the bottom-left corner on macOS, whereas on other platforms they are
// positioned from the upper-left corner. GLFW makes an effort to convert macOS style coordinates, however it
// doesn't handle it when changing size. We are manually moving the window in order for changes of size to be based
// on the upper-left corner.
int x, y, width, height;
glfwGetWindowPos(vd->Window, &x, &y);
glfwGetWindowSize(vd->Window, &width, &height);
glfwSetWindowPos(vd->Window, x, y - height + size.y);
#endif
vd->IgnoreWindowSizeEventFrame = ImGui::GetFrameCount();
glfwSetWindowSize(vd->Window, (int)size.x, (int)size.y);
}
static void ImGui_ImplGlfw_SetWindowTitle(ImGuiViewport* viewport, const char* title)
{
ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData;
glfwSetWindowTitle(vd->Window, title);
}
static void ImGui_ImplGlfw_SetWindowFocus(ImGuiViewport* viewport)
{
#if GLFW_HAS_FOCUS_WINDOW
ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData;
glfwFocusWindow(vd->Window);
#else
// FIXME: What are the effect of not having this function? At the moment imgui doesn't actually call SetWindowFocus - we set that up ahead, will answer that question later.
(void)viewport;
#endif
}
static bool ImGui_ImplGlfw_GetWindowFocus(ImGuiViewport* viewport)
{
ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData;
return glfwGetWindowAttrib(vd->Window, GLFW_FOCUSED) != 0;
}
static bool ImGui_ImplGlfw_GetWindowMinimized(ImGuiViewport* viewport)
{
ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData;
return glfwGetWindowAttrib(vd->Window, GLFW_ICONIFIED) != 0;
}
#if GLFW_HAS_WINDOW_ALPHA
static void ImGui_ImplGlfw_SetWindowAlpha(ImGuiViewport* viewport, float alpha)
{
ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData;
glfwSetWindowOpacity(vd->Window, alpha);
}
#endif
static void ImGui_ImplGlfw_RenderWindow(ImGuiViewport* viewport, void*)
{
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData;
if (bd->ClientApi == GlfwClientApi_OpenGL)
glfwMakeContextCurrent(vd->Window);
}
static void ImGui_ImplGlfw_SwapBuffers(ImGuiViewport* viewport, void*)
{
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData;
if (bd->ClientApi == GlfwClientApi_OpenGL)
{
glfwMakeContextCurrent(vd->Window);
glfwSwapBuffers(vd->Window);
}
}
//--------------------------------------------------------------------------------------------------------
// IME (Input Method Editor) basic support for e.g. Asian language users
//--------------------------------------------------------------------------------------------------------
// We provide a Win32 implementation because this is such a common issue for IME users
#if defined(_WIN32) && !defined(IMGUI_DISABLE_WIN32_FUNCTIONS) && !defined(IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCTIONS)
#define HAS_WIN32_IME 1
#include <imm.h>
#ifdef _MSC_VER
#pragma comment(lib, "imm32")
#endif
static void ImGui_ImplWin32_SetImeInputPos(ImGuiViewport* viewport, ImVec2 pos)
{
COMPOSITIONFORM cf = { CFS_FORCE_POSITION, { (LONG)(pos.x - viewport->Pos.x), (LONG)(pos.y - viewport->Pos.y) }, { 0, 0, 0, 0 } };
if (HWND hwnd = (HWND)viewport->PlatformHandleRaw)
if (HIMC himc = ::ImmGetContext(hwnd))
{
::ImmSetCompositionWindow(himc, &cf);
::ImmReleaseContext(hwnd, himc);
}
}
#else
#define HAS_WIN32_IME 0
#endif
//--------------------------------------------------------------------------------------------------------
// Vulkan support (the Vulkan renderer needs to call a platform-side support function to create the surface)
//--------------------------------------------------------------------------------------------------------
// Avoid including <vulkan.h> so we can build without it
#if GLFW_HAS_VULKAN
#ifndef VULKAN_H_
#define VK_DEFINE_HANDLE(object) typedef struct object##_T* object;
#if defined(__LP64__) || defined(_WIN64) || defined(__x86_64__) || defined(_M_X64) || defined(__ia64) || defined (_M_IA64) || defined(__aarch64__) || defined(__powerpc64__)
#define VK_DEFINE_NON_DISPATCHABLE_HANDLE(object) typedef struct object##_T *object;
#else
#define VK_DEFINE_NON_DISPATCHABLE_HANDLE(object) typedef uint64_t object;
#endif
VK_DEFINE_HANDLE(VkInstance)
VK_DEFINE_NON_DISPATCHABLE_HANDLE(VkSurfaceKHR)
struct VkAllocationCallbacks;
enum VkResult { VK_RESULT_MAX_ENUM = 0x7FFFFFFF };
#endif // VULKAN_H_
extern "C" { extern GLFWAPI VkResult glfwCreateWindowSurface(VkInstance instance, GLFWwindow* window, const VkAllocationCallbacks* allocator, VkSurfaceKHR* surface); }
static int ImGui_ImplGlfw_CreateVkSurface(ImGuiViewport* viewport, ImU64 vk_instance, const void* vk_allocator, ImU64* out_vk_surface)
{
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
ImGui_ImplGlfw_ViewportData* vd = (ImGui_ImplGlfw_ViewportData*)viewport->PlatformUserData;
IM_UNUSED(bd);
IM_ASSERT(bd->ClientApi == GlfwClientApi_Vulkan);
VkResult err = glfwCreateWindowSurface((VkInstance)vk_instance, vd->Window, (const VkAllocationCallbacks*)vk_allocator, (VkSurfaceKHR*)out_vk_surface);
return (int)err;
}
#endif // GLFW_HAS_VULKAN
static void ImGui_ImplGlfw_InitPlatformInterface()
{
// Register platform interface (will be coupled with a renderer interface)
ImGui_ImplGlfw_Data* bd = ImGui_ImplGlfw_GetBackendData();
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
platform_io.Platform_CreateWindow = ImGui_ImplGlfw_CreateWindow;
platform_io.Platform_DestroyWindow = ImGui_ImplGlfw_DestroyWindow;
platform_io.Platform_ShowWindow = ImGui_ImplGlfw_ShowWindow;
platform_io.Platform_SetWindowPos = ImGui_ImplGlfw_SetWindowPos;
platform_io.Platform_GetWindowPos = ImGui_ImplGlfw_GetWindowPos;
platform_io.Platform_SetWindowSize = ImGui_ImplGlfw_SetWindowSize;
platform_io.Platform_GetWindowSize = ImGui_ImplGlfw_GetWindowSize;
platform_io.Platform_SetWindowFocus = ImGui_ImplGlfw_SetWindowFocus;
platform_io.Platform_GetWindowFocus = ImGui_ImplGlfw_GetWindowFocus;
platform_io.Platform_GetWindowMinimized = ImGui_ImplGlfw_GetWindowMinimized;
platform_io.Platform_SetWindowTitle = ImGui_ImplGlfw_SetWindowTitle;
platform_io.Platform_RenderWindow = ImGui_ImplGlfw_RenderWindow;
platform_io.Platform_SwapBuffers = ImGui_ImplGlfw_SwapBuffers;
#if GLFW_HAS_WINDOW_ALPHA
platform_io.Platform_SetWindowAlpha = ImGui_ImplGlfw_SetWindowAlpha;
#endif
#if GLFW_HAS_VULKAN
platform_io.Platform_CreateVkSurface = ImGui_ImplGlfw_CreateVkSurface;
#endif
#if HAS_WIN32_IME
platform_io.Platform_SetImeInputPos = ImGui_ImplWin32_SetImeInputPos;
#endif
// Register main window handle (which is owned by the main application, not by us)
// This is mostly for simplicity and consistency, so that our code (e.g. mouse handling etc.) can use same logic for main and secondary viewports.
ImGuiViewport* main_viewport = ImGui::GetMainViewport();
ImGui_ImplGlfw_ViewportData* vd = IM_NEW(ImGui_ImplGlfw_ViewportData)();
vd->Window = bd->Window;
vd->WindowOwned = false;
main_viewport->PlatformUserData = vd;
main_viewport->PlatformHandle = (void*)bd->Window;
}
static void ImGui_ImplGlfw_ShutdownPlatformInterface()
{
ImGui::DestroyPlatformWindows();
}

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// dear imgui: Platform Backend for GLFW
// This needs to be used along with a Renderer (e.g. OpenGL3, Vulkan, WebGPU..)
// (Info: GLFW is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan graphics context creation, etc.)
// Implemented features:
// [X] Platform: Clipboard support.
// [X] Platform: Gamepad support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
// [x] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'. FIXME: 3 cursors types are missing from GLFW.
// [X] Platform: Keyboard arrays indexed using GLFW_KEY_* codes, e.g. ImGui::IsKeyPressed(GLFW_KEY_SPACE).
// [X] Platform: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
// Issues:
// [ ] Platform: Multi-viewport support: ParentViewportID not honored, and so io.ConfigViewportsNoDefaultParent has no effect (minor).
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// About GLSL version:
// The 'glsl_version' initialization parameter defaults to "#version 150" if NULL.
// Only override if your GL version doesn't handle this GLSL version. Keep NULL if unsure!
#pragma once
#include "imgui.h" // IMGUI_IMPL_API
struct GLFWwindow;
struct GLFWmonitor;
IMGUI_IMPL_API bool ImGui_ImplGlfw_InitForOpenGL(GLFWwindow* window, bool install_callbacks);
IMGUI_IMPL_API bool ImGui_ImplGlfw_InitForVulkan(GLFWwindow* window, bool install_callbacks);
IMGUI_IMPL_API bool ImGui_ImplGlfw_InitForOther(GLFWwindow* window, bool install_callbacks);
IMGUI_IMPL_API void ImGui_ImplGlfw_Shutdown();
IMGUI_IMPL_API void ImGui_ImplGlfw_NewFrame();
// GLFW callbacks
// - When calling Init with 'install_callbacks=true': GLFW callbacks will be installed for you. They will call user's previously installed callbacks, if any.
// - When calling Init with 'install_callbacks=false': GLFW callbacks won't be installed. You will need to call those function yourself from your own GLFW callbacks.
IMGUI_IMPL_API void ImGui_ImplGlfw_WindowFocusCallback(GLFWwindow* window, int focused);
IMGUI_IMPL_API void ImGui_ImplGlfw_CursorEnterCallback(GLFWwindow* window, int entered);
IMGUI_IMPL_API void ImGui_ImplGlfw_MouseButtonCallback(GLFWwindow* window, int button, int action, int mods);
IMGUI_IMPL_API void ImGui_ImplGlfw_ScrollCallback(GLFWwindow* window, double xoffset, double yoffset);
IMGUI_IMPL_API void ImGui_ImplGlfw_KeyCallback(GLFWwindow* window, int key, int scancode, int action, int mods);
IMGUI_IMPL_API void ImGui_ImplGlfw_CharCallback(GLFWwindow* window, unsigned int c);
IMGUI_IMPL_API void ImGui_ImplGlfw_MonitorCallback(GLFWmonitor* monitor, int event);

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// dear imgui: Platform Backend for GLUT/FreeGLUT
// This needs to be used along with a Renderer (e.g. OpenGL2)
// !!! GLUT/FreeGLUT IS OBSOLETE PREHISTORIC SOFTWARE. Using GLUT is not recommended unless you really miss the 90's. !!!
// !!! If someone or something is teaching you GLUT today, you are being abused. Please show some resistance. !!!
// !!! Nowadays, prefer using GLFW or SDL instead!
// Issues:
// [ ] Platform: GLUT is unable to distinguish e.g. Backspace from CTRL+H or TAB from CTRL+I
// [ ] Platform: Missing mouse cursor shape/visibility support.
// [ ] Platform: Missing clipboard support (not supported by Glut).
// [ ] Platform: Missing gamepad support.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2019-04-03: Misc: Renamed imgui_impl_freeglut.cpp/.h to imgui_impl_glut.cpp/.h.
// 2019-03-25: Misc: Made io.DeltaTime always above zero.
// 2018-11-30: Misc: Setting up io.BackendPlatformName so it can be displayed in the About Window.
// 2018-03-22: Added GLUT Platform binding.
#include "imgui.h"
#include "imgui_impl_glut.h"
#ifdef __APPLE__
#include <GLUT/glut.h>
#else
#include <GL/freeglut.h>
#endif
#ifdef _MSC_VER
#pragma warning (disable: 4505) // unreferenced local function has been removed (stb stuff)
#endif
static int g_Time = 0; // Current time, in milliseconds
bool ImGui_ImplGLUT_Init()
{
ImGuiIO& io = ImGui::GetIO();
#ifdef FREEGLUT
io.BackendPlatformName = "imgui_impl_glut (freeglut)";
#else
io.BackendPlatformName = "imgui_impl_glut";
#endif
g_Time = 0;
// Glut has 1 function for characters and one for "special keys". We map the characters in the 0..255 range and the keys above.
io.KeyMap[ImGuiKey_Tab] = '\t'; // == 9 == CTRL+I
io.KeyMap[ImGuiKey_LeftArrow] = 256 + GLUT_KEY_LEFT;
io.KeyMap[ImGuiKey_RightArrow] = 256 + GLUT_KEY_RIGHT;
io.KeyMap[ImGuiKey_UpArrow] = 256 + GLUT_KEY_UP;
io.KeyMap[ImGuiKey_DownArrow] = 256 + GLUT_KEY_DOWN;
io.KeyMap[ImGuiKey_PageUp] = 256 + GLUT_KEY_PAGE_UP;
io.KeyMap[ImGuiKey_PageDown] = 256 + GLUT_KEY_PAGE_DOWN;
io.KeyMap[ImGuiKey_Home] = 256 + GLUT_KEY_HOME;
io.KeyMap[ImGuiKey_End] = 256 + GLUT_KEY_END;
io.KeyMap[ImGuiKey_Insert] = 256 + GLUT_KEY_INSERT;
io.KeyMap[ImGuiKey_Delete] = 127;
io.KeyMap[ImGuiKey_Backspace] = 8; // == CTRL+H
io.KeyMap[ImGuiKey_Space] = ' ';
io.KeyMap[ImGuiKey_Enter] = 13; // == CTRL+M
io.KeyMap[ImGuiKey_Escape] = 27;
io.KeyMap[ImGuiKey_KeyPadEnter] = 13; // == CTRL+M
io.KeyMap[ImGuiKey_A] = 'A';
io.KeyMap[ImGuiKey_C] = 'C';
io.KeyMap[ImGuiKey_V] = 'V';
io.KeyMap[ImGuiKey_X] = 'X';
io.KeyMap[ImGuiKey_Y] = 'Y';
io.KeyMap[ImGuiKey_Z] = 'Z';
return true;
}
void ImGui_ImplGLUT_InstallFuncs()
{
glutReshapeFunc(ImGui_ImplGLUT_ReshapeFunc);
glutMotionFunc(ImGui_ImplGLUT_MotionFunc);
glutPassiveMotionFunc(ImGui_ImplGLUT_MotionFunc);
glutMouseFunc(ImGui_ImplGLUT_MouseFunc);
#ifdef __FREEGLUT_EXT_H__
glutMouseWheelFunc(ImGui_ImplGLUT_MouseWheelFunc);
#endif
glutKeyboardFunc(ImGui_ImplGLUT_KeyboardFunc);
glutKeyboardUpFunc(ImGui_ImplGLUT_KeyboardUpFunc);
glutSpecialFunc(ImGui_ImplGLUT_SpecialFunc);
glutSpecialUpFunc(ImGui_ImplGLUT_SpecialUpFunc);
}
void ImGui_ImplGLUT_Shutdown()
{
}
void ImGui_ImplGLUT_NewFrame()
{
// Setup time step
ImGuiIO& io = ImGui::GetIO();
int current_time = glutGet(GLUT_ELAPSED_TIME);
int delta_time_ms = (current_time - g_Time);
if (delta_time_ms <= 0)
delta_time_ms = 1;
io.DeltaTime = delta_time_ms / 1000.0f;
g_Time = current_time;
// Start the frame
ImGui::NewFrame();
}
static void ImGui_ImplGLUT_UpdateKeyboardMods()
{
ImGuiIO& io = ImGui::GetIO();
int mods = glutGetModifiers();
io.KeyCtrl = (mods & GLUT_ACTIVE_CTRL) != 0;
io.KeyShift = (mods & GLUT_ACTIVE_SHIFT) != 0;
io.KeyAlt = (mods & GLUT_ACTIVE_ALT) != 0;
}
void ImGui_ImplGLUT_KeyboardFunc(unsigned char c, int x, int y)
{
// Send character to imgui
//printf("char_down_func %d '%c'\n", c, c);
ImGuiIO& io = ImGui::GetIO();
if (c >= 32)
io.AddInputCharacter((unsigned int)c);
// Store letters in KeysDown[] array as both uppercase and lowercase + Handle GLUT translating CTRL+A..CTRL+Z as 1..26.
// This is a hacky mess but GLUT is unable to distinguish e.g. a TAB key from CTRL+I so this is probably the best we can do here.
if (c >= 1 && c <= 26)
io.KeysDown[c] = io.KeysDown[c - 1 + 'a'] = io.KeysDown[c - 1 + 'A'] = true;
else if (c >= 'a' && c <= 'z')
io.KeysDown[c] = io.KeysDown[c - 'a' + 'A'] = true;
else if (c >= 'A' && c <= 'Z')
io.KeysDown[c] = io.KeysDown[c - 'A' + 'a'] = true;
else
io.KeysDown[c] = true;
ImGui_ImplGLUT_UpdateKeyboardMods();
(void)x; (void)y; // Unused
}
void ImGui_ImplGLUT_KeyboardUpFunc(unsigned char c, int x, int y)
{
//printf("char_up_func %d '%c'\n", c, c);
ImGuiIO& io = ImGui::GetIO();
if (c >= 1 && c <= 26)
io.KeysDown[c] = io.KeysDown[c - 1 + 'a'] = io.KeysDown[c - 1 + 'A'] = false;
else if (c >= 'a' && c <= 'z')
io.KeysDown[c] = io.KeysDown[c - 'a' + 'A'] = false;
else if (c >= 'A' && c <= 'Z')
io.KeysDown[c] = io.KeysDown[c - 'A' + 'a'] = false;
else
io.KeysDown[c] = false;
ImGui_ImplGLUT_UpdateKeyboardMods();
(void)x; (void)y; // Unused
}
void ImGui_ImplGLUT_SpecialFunc(int key, int x, int y)
{
//printf("key_down_func %d\n", key);
ImGuiIO& io = ImGui::GetIO();
if (key + 256 < IM_ARRAYSIZE(io.KeysDown))
io.KeysDown[key + 256] = true;
ImGui_ImplGLUT_UpdateKeyboardMods();
(void)x; (void)y; // Unused
}
void ImGui_ImplGLUT_SpecialUpFunc(int key, int x, int y)
{
//printf("key_up_func %d\n", key);
ImGuiIO& io = ImGui::GetIO();
if (key + 256 < IM_ARRAYSIZE(io.KeysDown))
io.KeysDown[key + 256] = false;
ImGui_ImplGLUT_UpdateKeyboardMods();
(void)x; (void)y; // Unused
}
void ImGui_ImplGLUT_MouseFunc(int glut_button, int state, int x, int y)
{
ImGuiIO& io = ImGui::GetIO();
io.MousePos = ImVec2((float)x, (float)y);
int button = -1;
if (glut_button == GLUT_LEFT_BUTTON) button = 0;
if (glut_button == GLUT_RIGHT_BUTTON) button = 1;
if (glut_button == GLUT_MIDDLE_BUTTON) button = 2;
if (button != -1 && state == GLUT_DOWN)
io.MouseDown[button] = true;
if (button != -1 && state == GLUT_UP)
io.MouseDown[button] = false;
}
#ifdef __FREEGLUT_EXT_H__
void ImGui_ImplGLUT_MouseWheelFunc(int button, int dir, int x, int y)
{
ImGuiIO& io = ImGui::GetIO();
io.MousePos = ImVec2((float)x, (float)y);
if (dir > 0)
io.MouseWheel += 1.0;
else if (dir < 0)
io.MouseWheel -= 1.0;
(void)button; // Unused
}
#endif
void ImGui_ImplGLUT_ReshapeFunc(int w, int h)
{
ImGuiIO& io = ImGui::GetIO();
io.DisplaySize = ImVec2((float)w, (float)h);
}
void ImGui_ImplGLUT_MotionFunc(int x, int y)
{
ImGuiIO& io = ImGui::GetIO();
io.MousePos = ImVec2((float)x, (float)y);
}

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// dear imgui: Platform Backend for GLUT/FreeGLUT
// This needs to be used along with a Renderer (e.g. OpenGL2)
// !!! GLUT/FreeGLUT IS OBSOLETE PREHISTORIC SOFTWARE. Using GLUT is not recommended unless you really miss the 90's. !!!
// !!! If someone or something is teaching you GLUT today, you are being abused. Please show some resistance. !!!
// !!! Nowadays, prefer using GLFW or SDL instead!
// Issues:
// [ ] Platform: GLUT is unable to distinguish e.g. Backspace from CTRL+H or TAB from CTRL+I
// [ ] Platform: Missing mouse cursor shape/visibility support.
// [ ] Platform: Missing clipboard support (not supported by Glut).
// [ ] Platform: Missing gamepad support.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
#pragma once
#include "imgui.h" // IMGUI_IMPL_API
IMGUI_IMPL_API bool ImGui_ImplGLUT_Init();
IMGUI_IMPL_API void ImGui_ImplGLUT_InstallFuncs();
IMGUI_IMPL_API void ImGui_ImplGLUT_Shutdown();
IMGUI_IMPL_API void ImGui_ImplGLUT_NewFrame();
// You can call ImGui_ImplGLUT_InstallFuncs() to get all those functions installed automatically,
// or call them yourself from your own GLUT handlers. We are using the same weird names as GLUT for consistency..
//---------------------------------------- GLUT name --------------------------------------------- Decent Name ---------
IMGUI_IMPL_API void ImGui_ImplGLUT_ReshapeFunc(int w, int h); // ~ ResizeFunc
IMGUI_IMPL_API void ImGui_ImplGLUT_MotionFunc(int x, int y); // ~ MouseMoveFunc
IMGUI_IMPL_API void ImGui_ImplGLUT_MouseFunc(int button, int state, int x, int y); // ~ MouseButtonFunc
IMGUI_IMPL_API void ImGui_ImplGLUT_MouseWheelFunc(int button, int dir, int x, int y); // ~ MouseWheelFunc
IMGUI_IMPL_API void ImGui_ImplGLUT_KeyboardFunc(unsigned char c, int x, int y); // ~ CharPressedFunc
IMGUI_IMPL_API void ImGui_ImplGLUT_KeyboardUpFunc(unsigned char c, int x, int y); // ~ CharReleasedFunc
IMGUI_IMPL_API void ImGui_ImplGLUT_SpecialFunc(int key, int x, int y); // ~ KeyPressedFunc
IMGUI_IMPL_API void ImGui_ImplGLUT_SpecialUpFunc(int key, int x, int y); // ~ KeyReleasedFunc

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// dear imgui: Renderer + Platform Backend for Marmalade + IwGx
// Marmalade code: Copyright (C) 2015 by Giovanni Zito (this file is part of Dear ImGui)
// Implemented features:
// [X] Renderer: User texture binding. Use 'CIwTexture*' as ImTextureID. Read the FAQ about ImTextureID!
// Missing features:
// [ ] Renderer: Clipping rectangles are not honored.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2021-05-19: Renderer: Replaced direct access to ImDrawCmd::TextureId with a call to ImDrawCmd::GetTexID(). (will become a requirement)
// 2019-07-21: Inputs: Added mapping for ImGuiKey_KeyPadEnter.
// 2019-05-11: Inputs: Don't filter value from character callback before calling AddInputCharacter().
// 2018-11-30: Misc: Setting up io.BackendPlatformName/io.BackendRendererName so they can be displayed in the About Window.
// 2018-02-16: Misc: Obsoleted the io.RenderDrawListsFn callback and exposed ImGui_Marmalade_RenderDrawData() in the .h file so you can call it yourself.
// 2018-02-06: Misc: Removed call to ImGui::Shutdown() which is not available from 1.60 WIP, user needs to call CreateContext/DestroyContext themselves.
// 2018-02-06: Inputs: Added mapping for ImGuiKey_Space.
#include "imgui.h"
#include "imgui_impl_marmalade.h"
#include <s3eClipboard.h>
#include <s3ePointer.h>
#include <s3eKeyboard.h>
#include <IwTexture.h>
#include <IwGx.h>
// Data
static double g_Time = 0.0f;
static bool g_MousePressed[3] = { false, false, false };
static CIwTexture* g_FontTexture = NULL;
static char* g_ClipboardText = NULL;
static bool g_osdKeyboardEnabled = false;
// use this setting to scale the interface - e.g. on device you could use 2 or 3 scale factor
static ImVec2 g_RenderScale = ImVec2(1.0f, 1.0f);
// Render function.
void ImGui_Marmalade_RenderDrawData(ImDrawData* draw_data)
{
// Avoid rendering when minimized
if (draw_data->DisplaySize.x <= 0.0f || draw_data->DisplaySize.y <= 0.0f)
return;
// Render command lists
for (int n = 0; n < draw_data->CmdListsCount; n++)
{
const ImDrawList* cmd_list = draw_data->CmdLists[n];
const ImDrawIdx* idx_buffer = cmd_list->IdxBuffer.Data;
const int nVert = cmd_list->VtxBuffer.Size;
CIwFVec2* pVertStream = IW_GX_ALLOC(CIwFVec2, nVert);
CIwFVec2* pUVStream = IW_GX_ALLOC(CIwFVec2, nVert);
CIwColour* pColStream = IW_GX_ALLOC(CIwColour, nVert);
for (int i = 0; i < nVert; i++)
{
// FIXME-OPT: optimize multiplication on GPU using vertex shader/projection matrix.
pVertStream[i].x = cmd_list->VtxBuffer[i].pos.x * g_RenderScale.x;
pVertStream[i].y = cmd_list->VtxBuffer[i].pos.y * g_RenderScale.y;
pUVStream[i].x = cmd_list->VtxBuffer[i].uv.x;
pUVStream[i].y = cmd_list->VtxBuffer[i].uv.y;
pColStream[i] = cmd_list->VtxBuffer[i].col;
}
IwGxSetVertStreamScreenSpace(pVertStream, nVert);
IwGxSetUVStream(pUVStream);
IwGxSetColStream(pColStream, nVert);
IwGxSetNormStream(0);
for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
{
const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i];
if (pcmd->UserCallback)
{
pcmd->UserCallback(cmd_list, pcmd);
}
else
{
// FIXME: Not honoring ClipRect fields.
CIwMaterial* pCurrentMaterial = IW_GX_ALLOC_MATERIAL();
pCurrentMaterial->SetShadeMode(CIwMaterial::SHADE_FLAT);
pCurrentMaterial->SetCullMode(CIwMaterial::CULL_NONE);
pCurrentMaterial->SetFiltering(false);
pCurrentMaterial->SetAlphaMode(CIwMaterial::ALPHA_BLEND);
pCurrentMaterial->SetDepthWriteMode(CIwMaterial::DEPTH_WRITE_NORMAL);
pCurrentMaterial->SetAlphaTestMode(CIwMaterial::ALPHATEST_DISABLED);
pCurrentMaterial->SetTexture((CIwTexture*)pcmd->GetTexID());
IwGxSetMaterial(pCurrentMaterial);
IwGxDrawPrims(IW_GX_TRI_LIST, (uint16*)idx_buffer, pcmd->ElemCount);
}
idx_buffer += pcmd->ElemCount;
}
IwGxFlush();
}
// TODO: restore modified state (i.e. mvp matrix)
}
static const char* ImGui_Marmalade_GetClipboardText(void* /*user_data*/)
{
if (!s3eClipboardAvailable())
return NULL;
if (int size = s3eClipboardGetText(NULL, 0))
{
if (g_ClipboardText)
delete[] g_ClipboardText;
g_ClipboardText = new char[size];
g_ClipboardText[0] = '\0';
s3eClipboardGetText(g_ClipboardText, size);
}
return g_ClipboardText;
}
static void ImGui_Marmalade_SetClipboardText(void* /*user_data*/, const char* text)
{
if (s3eClipboardAvailable())
s3eClipboardSetText(text);
}
int32 ImGui_Marmalade_PointerButtonEventCallback(void* system_data, void* user_data)
{
// pEvent->m_Button is of type s3ePointerButton and indicates which mouse
// button was pressed. For touchscreen this should always have the value
// S3E_POINTER_BUTTON_SELECT
s3ePointerEvent* pEvent = (s3ePointerEvent*)system_data;
if (pEvent->m_Pressed == 1)
{
if (pEvent->m_Button == S3E_POINTER_BUTTON_LEFTMOUSE)
g_MousePressed[0] = true;
if (pEvent->m_Button == S3E_POINTER_BUTTON_RIGHTMOUSE)
g_MousePressed[1] = true;
if (pEvent->m_Button == S3E_POINTER_BUTTON_MIDDLEMOUSE)
g_MousePressed[2] = true;
if (pEvent->m_Button == S3E_POINTER_BUTTON_MOUSEWHEELUP)
io.MouseWheel += pEvent->m_y;
if (pEvent->m_Button == S3E_POINTER_BUTTON_MOUSEWHEELDOWN)
io.MouseWheel += pEvent->m_y;
}
return 0;
}
int32 ImGui_Marmalade_KeyCallback(void* system_data, void* user_data)
{
ImGuiIO& io = ImGui::GetIO();
s3eKeyboardEvent* e = (s3eKeyboardEvent*)system_data;
if (e->m_Pressed == 1)
io.KeysDown[e->m_Key] = true;
if (e->m_Pressed == 0)
io.KeysDown[e->m_Key] = false;
io.KeyCtrl = s3eKeyboardGetState(s3eKeyLeftControl) == S3E_KEY_STATE_DOWN || s3eKeyboardGetState(s3eKeyRightControl) == S3E_KEY_STATE_DOWN;
io.KeyShift = s3eKeyboardGetState(s3eKeyLeftShift) == S3E_KEY_STATE_DOWN || s3eKeyboardGetState(s3eKeyRightShift) == S3E_KEY_STATE_DOWN;
io.KeyAlt = s3eKeyboardGetState(s3eKeyLeftAlt) == S3E_KEY_STATE_DOWN || s3eKeyboardGetState(s3eKeyRightAlt) == S3E_KEY_STATE_DOWN;
io.KeySuper = s3eKeyboardGetState(s3eKeyLeftWindows) == S3E_KEY_STATE_DOWN || s3eKeyboardGetState(s3eKeyRightWindows) == S3E_KEY_STATE_DOWN;
return 0;
}
int32 ImGui_Marmalade_CharCallback(void* system_data, void* user_data)
{
ImGuiIO& io = ImGui::GetIO();
s3eKeyboardCharEvent* e = (s3eKeyboardCharEvent*)system_data;
io.AddInputCharacter((unsigned int)e->m_Char);
return 0;
}
bool ImGui_Marmalade_CreateDeviceObjects()
{
// Build texture atlas
ImGuiIO& io = ImGui::GetIO();
unsigned char* pixels;
int width, height;
io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);
// Upload texture to graphics system
g_FontTexture = new CIwTexture();
g_FontTexture->SetModifiable(true);
CIwImage& image = g_FontTexture->GetImage();
image.SetFormat(CIwImage::ARGB_8888);
image.SetWidth(width);
image.SetHeight(height);
image.SetBuffers(); // allocates and own buffers
image.ReadTexels(pixels);
g_FontTexture->SetMipMapping(false);
g_FontTexture->SetFiltering(false);
g_FontTexture->Upload();
// Store our identifier
io.Fonts->SetTexID((ImTextureID)g_FontTexture);
return true;
}
void ImGui_Marmalade_InvalidateDeviceObjects()
{
if (g_ClipboardText)
{
delete[] g_ClipboardText;
g_ClipboardText = NULL;
}
if (g_FontTexture)
{
ImGui::GetIO().Fonts->SetTexID(0);
delete g_FontTexture;
g_FontTexture = NULL;
}
}
bool ImGui_Marmalade_Init(bool install_callbacks)
{
ImGuiIO& io = ImGui::GetIO();
io.BackendPlatformName = io.BackendRendererName = "imgui_impl_marmalade";
// Keyboard mapping. Dear ImGui will use those indices to peek into the io.KeysDown[] array.
io.KeyMap[ImGuiKey_Tab] = s3eKeyTab
io.KeyMap[ImGuiKey_LeftArrow] = s3eKeyLeft;
io.KeyMap[ImGuiKey_RightArrow] = s3eKeyRight;
io.KeyMap[ImGuiKey_UpArrow] = s3eKeyUp;
io.KeyMap[ImGuiKey_DownArrow] = s3eKeyDown;
io.KeyMap[ImGuiKey_PageUp] = s3eKeyPageUp;
io.KeyMap[ImGuiKey_PageDown] = s3eKeyPageDown;
io.KeyMap[ImGuiKey_Home] = s3eKeyHome;
io.KeyMap[ImGuiKey_End] = s3eKeyEnd;
io.KeyMap[ImGuiKey_Insert] = s3eKeyInsert;
io.KeyMap[ImGuiKey_Delete] = s3eKeyDelete;
io.KeyMap[ImGuiKey_Backspace] = s3eKeyBackspace;
io.KeyMap[ImGuiKey_Space] = s3eKeySpace;
io.KeyMap[ImGuiKey_Enter] = s3eKeyEnter;
io.KeyMap[ImGuiKey_Escape] = s3eKeyEsc;
io.KeyMap[ImGuiKey_KeyPadEnter] = s3eKeyNumPadEnter;
io.KeyMap[ImGuiKey_A] = s3eKeyA;
io.KeyMap[ImGuiKey_C] = s3eKeyC;
io.KeyMap[ImGuiKey_V] = s3eKeyV;
io.KeyMap[ImGuiKey_X] = s3eKeyX;
io.KeyMap[ImGuiKey_Y] = s3eKeyY;
io.KeyMap[ImGuiKey_Z] = s3eKeyZ;
io.SetClipboardTextFn = ImGui_Marmalade_SetClipboardText;
io.GetClipboardTextFn = ImGui_Marmalade_GetClipboardText;
if (install_callbacks)
{
s3ePointerRegister(S3E_POINTER_BUTTON_EVENT, ImGui_Marmalade_PointerButtonEventCallback, 0);
s3eKeyboardRegister(S3E_KEYBOARD_KEY_EVENT, ImGui_Marmalade_KeyCallback, 0);
s3eKeyboardRegister(S3E_KEYBOARD_CHAR_EVENT, ImGui_Marmalade_CharCallback, 0);
}
return true;
}
void ImGui_Marmalade_Shutdown()
{
ImGui_Marmalade_InvalidateDeviceObjects();
}
void ImGui_Marmalade_NewFrame()
{
if (!g_FontTexture)
ImGui_Marmalade_CreateDeviceObjects();
ImGuiIO& io = ImGui::GetIO();
// Setup display size (every frame to accommodate for window resizing)
int w = IwGxGetScreenWidth(), h = IwGxGetScreenHeight();
io.DisplaySize = ImVec2((float)w, (float)h);
// For retina display or other situations where window coordinates are different from framebuffer coordinates. User storage only, presently not used by ImGui.
io.DisplayFramebufferScale = g_scale;
// Setup time step
double current_time = s3eTimerGetUST() / 1000.0f;
io.DeltaTime = g_Time > 0.0 ? (float)(current_time - g_Time) : (float)(1.0f / 60.0f);
g_Time = current_time;
double mouse_x, mouse_y;
mouse_x = s3ePointerGetX();
mouse_y = s3ePointerGetY();
io.MousePos = ImVec2((float)mouse_x / g_scale.x, (float)mouse_y / g_scale.y); // Mouse position (set to -FLT_MAX,-FLT_MAX if no mouse / on another screen, etc.)
for (int i = 0; i < 3; i++)
{
io.MouseDown[i] = g_MousePressed[i] || s3ePointerGetState((s3ePointerButton)i) != S3E_POINTER_STATE_UP; // If a mouse press event came, always pass it as "mouse held this frame", so we don't miss click-release events that are shorter than 1 frame.
g_MousePressed[i] = false;
}
// TODO: Hide OS mouse cursor if ImGui is drawing it
// s3ePointerSetInt(S3E_POINTER_HIDE_CURSOR,(io.MouseDrawCursor ? 0 : 1));
// Show/hide OSD keyboard
if (io.WantTextInput)
{
// Some text input widget is active?
if (!g_osdKeyboardEnabled)
{
g_osdKeyboardEnabled = true;
s3eKeyboardSetInt(S3E_KEYBOARD_GET_CHAR, 1); // show OSD keyboard
}
}
else
{
// No text input widget is active
if (g_osdKeyboardEnabled)
{
g_osdKeyboardEnabled = false;
s3eKeyboardSetInt(S3E_KEYBOARD_GET_CHAR, 0); // hide OSD keyboard
}
}
}

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// dear imgui: Renderer + Platform Backend for Marmalade + IwGx
// Marmalade code: Copyright (C) 2015 by Giovanni Zito (this file is part of Dear ImGui)
// Implemented features:
// [X] Renderer: User texture binding. Use 'CIwTexture*' as ImTextureID. Read the FAQ about ImTextureID!
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
#pragma once
#include "imgui.h" // IMGUI_IMPL_API
IMGUI_IMPL_API bool ImGui_Marmalade_Init(bool install_callbacks);
IMGUI_IMPL_API void ImGui_Marmalade_Shutdown();
IMGUI_IMPL_API void ImGui_Marmalade_NewFrame();
IMGUI_IMPL_API void ImGui_Marmalade_RenderDrawData(ImDrawData* draw_data);
// Use if you want to reset your rendering device without losing Dear ImGui state.
IMGUI_IMPL_API void ImGui_Marmalade_InvalidateDeviceObjects();
IMGUI_IMPL_API bool ImGui_Marmalade_CreateDeviceObjects();
// Callbacks (installed by default if you enable 'install_callbacks' during initialization)
// You can also handle inputs yourself and use those as a reference.
IMGUI_IMPL_API int32 ImGui_Marmalade_PointerButtonEventCallback(void* system_data, void* user_data);
IMGUI_IMPL_API int32 ImGui_Marmalade_KeyCallback(void* system_data, void* user_data);
IMGUI_IMPL_API int32 ImGui_Marmalade_CharCallback(void* system_data, void* user_data);

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// dear imgui: Renderer Backend for Metal
// This needs to be used along with a Platform Backend (e.g. OSX)
// Implemented features:
// [X] Renderer: User texture binding. Use 'MTLTexture' as ImTextureID. Read the FAQ about ImTextureID!
// [X] Renderer: Support for large meshes (64k+ vertices) with 16-bit indices.
// Missing features:
// [ ] Renderer: Multi-viewport / platform windows.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
#include "imgui.h" // IMGUI_IMPL_API
@class MTLRenderPassDescriptor;
@protocol MTLDevice, MTLCommandBuffer, MTLRenderCommandEncoder;
IMGUI_IMPL_API bool ImGui_ImplMetal_Init(id<MTLDevice> device);
IMGUI_IMPL_API void ImGui_ImplMetal_Shutdown();
IMGUI_IMPL_API void ImGui_ImplMetal_NewFrame(MTLRenderPassDescriptor* renderPassDescriptor);
IMGUI_IMPL_API void ImGui_ImplMetal_RenderDrawData(ImDrawData* draw_data,
id<MTLCommandBuffer> commandBuffer,
id<MTLRenderCommandEncoder> commandEncoder);
// Called by Init/NewFrame/Shutdown
IMGUI_IMPL_API bool ImGui_ImplMetal_CreateFontsTexture(id<MTLDevice> device);
IMGUI_IMPL_API void ImGui_ImplMetal_DestroyFontsTexture();
IMGUI_IMPL_API bool ImGui_ImplMetal_CreateDeviceObjects(id<MTLDevice> device);
IMGUI_IMPL_API void ImGui_ImplMetal_DestroyDeviceObjects();

558
samples/external/Imgui/imgui-docking/backends/imgui_impl_metal.mm vendored Normal file
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// dear imgui: Renderer Backend for Metal
// This needs to be used along with a Platform Backend (e.g. OSX)
// Implemented features:
// [X] Renderer: User texture binding. Use 'MTLTexture' as ImTextureID. Read the FAQ about ImTextureID!
// [X] Renderer: Support for large meshes (64k+ vertices) with 16-bit indices.
// Missing features:
// [ ] Renderer: Multi-viewport / platform windows.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2021-08-24: Metal: Fixed a crash when clipping rect larger than framebuffer is submitted. (#4464)
// 2021-05-19: Metal: Replaced direct access to ImDrawCmd::TextureId with a call to ImDrawCmd::GetTexID(). (will become a requirement)
// 2021-02-18: Metal: Change blending equation to preserve alpha in output buffer.
// 2021-01-25: Metal: Fixed texture storage mode when building on Mac Catalyst.
// 2019-05-29: Metal: Added support for large mesh (64K+ vertices), enable ImGuiBackendFlags_RendererHasVtxOffset flag.
// 2019-04-30: Metal: Added support for special ImDrawCallback_ResetRenderState callback to reset render state.
// 2019-02-11: Metal: Projecting clipping rectangles correctly using draw_data->FramebufferScale to allow multi-viewports for retina display.
// 2018-11-30: Misc: Setting up io.BackendRendererName so it can be displayed in the About Window.
// 2018-07-05: Metal: Added new Metal backend implementation.
#include "imgui.h"
#include "imgui_impl_metal.h"
#import <Metal/Metal.h>
// #import <QuartzCore/CAMetalLayer.h> // Not supported in XCode 9.2. Maybe a macro to detect the SDK version can be used (something like #if MACOS_SDK >= 10.13 ...)
#import <simd/simd.h>
#pragma mark - Support classes
// A wrapper around a MTLBuffer object that knows the last time it was reused
@interface MetalBuffer : NSObject
@property (nonatomic, strong) id<MTLBuffer> buffer;
@property (nonatomic, assign) NSTimeInterval lastReuseTime;
- (instancetype)initWithBuffer:(id<MTLBuffer>)buffer;
@end
// An object that encapsulates the data necessary to uniquely identify a
// render pipeline state. These are used as cache keys.
@interface FramebufferDescriptor : NSObject<NSCopying>
@property (nonatomic, assign) unsigned long sampleCount;
@property (nonatomic, assign) MTLPixelFormat colorPixelFormat;
@property (nonatomic, assign) MTLPixelFormat depthPixelFormat;
@property (nonatomic, assign) MTLPixelFormat stencilPixelFormat;
- (instancetype)initWithRenderPassDescriptor:(MTLRenderPassDescriptor *)renderPassDescriptor;
@end
// A singleton that stores long-lived objects that are needed by the Metal
// renderer backend. Stores the render pipeline state cache and the default
// font texture, and manages the reusable buffer cache.
@interface MetalContext : NSObject
@property (nonatomic, strong) id<MTLDepthStencilState> depthStencilState;
@property (nonatomic, strong) FramebufferDescriptor *framebufferDescriptor; // framebuffer descriptor for current frame; transient
@property (nonatomic, strong) NSMutableDictionary *renderPipelineStateCache; // pipeline cache; keyed on framebuffer descriptors
@property (nonatomic, strong, nullable) id<MTLTexture> fontTexture;
@property (nonatomic, strong) NSMutableArray<MetalBuffer *> *bufferCache;
@property (nonatomic, assign) NSTimeInterval lastBufferCachePurge;
- (void)makeDeviceObjectsWithDevice:(id<MTLDevice>)device;
- (void)makeFontTextureWithDevice:(id<MTLDevice>)device;
- (MetalBuffer *)dequeueReusableBufferOfLength:(NSUInteger)length device:(id<MTLDevice>)device;
- (void)enqueueReusableBuffer:(MetalBuffer *)buffer;
- (id<MTLRenderPipelineState>)renderPipelineStateForFrameAndDevice:(id<MTLDevice>)device;
- (void)emptyRenderPipelineStateCache;
- (void)setupRenderState:(ImDrawData *)drawData
commandBuffer:(id<MTLCommandBuffer>)commandBuffer
commandEncoder:(id<MTLRenderCommandEncoder>)commandEncoder
renderPipelineState:(id<MTLRenderPipelineState>)renderPipelineState
vertexBuffer:(MetalBuffer *)vertexBuffer
vertexBufferOffset:(size_t)vertexBufferOffset;
- (void)renderDrawData:(ImDrawData *)drawData
commandBuffer:(id<MTLCommandBuffer>)commandBuffer
commandEncoder:(id<MTLRenderCommandEncoder>)commandEncoder;
@end
static MetalContext *g_sharedMetalContext = nil;
#pragma mark - ImGui API implementation
bool ImGui_ImplMetal_Init(id<MTLDevice> device)
{
ImGuiIO& io = ImGui::GetIO();
io.BackendRendererName = "imgui_impl_metal";
io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset; // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
g_sharedMetalContext = [[MetalContext alloc] init];
});
ImGui_ImplMetal_CreateDeviceObjects(device);
return true;
}
void ImGui_ImplMetal_Shutdown()
{
ImGui_ImplMetal_DestroyDeviceObjects();
}
void ImGui_ImplMetal_NewFrame(MTLRenderPassDescriptor *renderPassDescriptor)
{
IM_ASSERT(g_sharedMetalContext != nil && "No Metal context. Did you call ImGui_ImplMetal_Init() ?");
g_sharedMetalContext.framebufferDescriptor = [[FramebufferDescriptor alloc] initWithRenderPassDescriptor:renderPassDescriptor];
}
// Metal Render function.
void ImGui_ImplMetal_RenderDrawData(ImDrawData* draw_data, id<MTLCommandBuffer> commandBuffer, id<MTLRenderCommandEncoder> commandEncoder)
{
[g_sharedMetalContext renderDrawData:draw_data commandBuffer:commandBuffer commandEncoder:commandEncoder];
}
bool ImGui_ImplMetal_CreateFontsTexture(id<MTLDevice> device)
{
[g_sharedMetalContext makeFontTextureWithDevice:device];
ImGuiIO& io = ImGui::GetIO();
io.Fonts->SetTexID((__bridge void *)g_sharedMetalContext.fontTexture); // ImTextureID == void*
return (g_sharedMetalContext.fontTexture != nil);
}
void ImGui_ImplMetal_DestroyFontsTexture()
{
ImGuiIO& io = ImGui::GetIO();
g_sharedMetalContext.fontTexture = nil;
io.Fonts->SetTexID(nullptr);
}
bool ImGui_ImplMetal_CreateDeviceObjects(id<MTLDevice> device)
{
[g_sharedMetalContext makeDeviceObjectsWithDevice:device];
ImGui_ImplMetal_CreateFontsTexture(device);
return true;
}
void ImGui_ImplMetal_DestroyDeviceObjects()
{
ImGui_ImplMetal_DestroyFontsTexture();
[g_sharedMetalContext emptyRenderPipelineStateCache];
}
#pragma mark - MetalBuffer implementation
@implementation MetalBuffer
- (instancetype)initWithBuffer:(id<MTLBuffer>)buffer
{
if ((self = [super init]))
{
_buffer = buffer;
_lastReuseTime = [NSDate date].timeIntervalSince1970;
}
return self;
}
@end
#pragma mark - FramebufferDescriptor implementation
@implementation FramebufferDescriptor
- (instancetype)initWithRenderPassDescriptor:(MTLRenderPassDescriptor *)renderPassDescriptor
{
if ((self = [super init]))
{
_sampleCount = renderPassDescriptor.colorAttachments[0].texture.sampleCount;
_colorPixelFormat = renderPassDescriptor.colorAttachments[0].texture.pixelFormat;
_depthPixelFormat = renderPassDescriptor.depthAttachment.texture.pixelFormat;
_stencilPixelFormat = renderPassDescriptor.stencilAttachment.texture.pixelFormat;
}
return self;
}
- (nonnull id)copyWithZone:(nullable NSZone *)zone
{
FramebufferDescriptor *copy = [[FramebufferDescriptor allocWithZone:zone] init];
copy.sampleCount = self.sampleCount;
copy.colorPixelFormat = self.colorPixelFormat;
copy.depthPixelFormat = self.depthPixelFormat;
copy.stencilPixelFormat = self.stencilPixelFormat;
return copy;
}
- (NSUInteger)hash
{
NSUInteger sc = _sampleCount & 0x3;
NSUInteger cf = _colorPixelFormat & 0x3FF;
NSUInteger df = _depthPixelFormat & 0x3FF;
NSUInteger sf = _stencilPixelFormat & 0x3FF;
NSUInteger hash = (sf << 22) | (df << 12) | (cf << 2) | sc;
return hash;
}
- (BOOL)isEqual:(id)object
{
FramebufferDescriptor *other = object;
if (![other isKindOfClass:[FramebufferDescriptor class]])
return NO;
return other.sampleCount == self.sampleCount &&
other.colorPixelFormat == self.colorPixelFormat &&
other.depthPixelFormat == self.depthPixelFormat &&
other.stencilPixelFormat == self.stencilPixelFormat;
}
@end
#pragma mark - MetalContext implementation
@implementation MetalContext
- (instancetype)init {
if ((self = [super init]))
{
_renderPipelineStateCache = [NSMutableDictionary dictionary];
_bufferCache = [NSMutableArray array];
_lastBufferCachePurge = [NSDate date].timeIntervalSince1970;
}
return self;
}
- (void)makeDeviceObjectsWithDevice:(id<MTLDevice>)device
{
MTLDepthStencilDescriptor *depthStencilDescriptor = [[MTLDepthStencilDescriptor alloc] init];
depthStencilDescriptor.depthWriteEnabled = NO;
depthStencilDescriptor.depthCompareFunction = MTLCompareFunctionAlways;
self.depthStencilState = [device newDepthStencilStateWithDescriptor:depthStencilDescriptor];
}
// We are retrieving and uploading the font atlas as a 4-channels RGBA texture here.
// In theory we could call GetTexDataAsAlpha8() and upload a 1-channel texture to save on memory access bandwidth.
// However, using a shader designed for 1-channel texture would make it less obvious to use the ImTextureID facility to render users own textures.
// You can make that change in your implementation.
- (void)makeFontTextureWithDevice:(id<MTLDevice>)device
{
ImGuiIO &io = ImGui::GetIO();
unsigned char* pixels;
int width, height;
io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);
MTLTextureDescriptor *textureDescriptor = [MTLTextureDescriptor texture2DDescriptorWithPixelFormat:MTLPixelFormatRGBA8Unorm
width:(NSUInteger)width
height:(NSUInteger)height
mipmapped:NO];
textureDescriptor.usage = MTLTextureUsageShaderRead;
#if TARGET_OS_OSX || TARGET_OS_MACCATALYST
textureDescriptor.storageMode = MTLStorageModeManaged;
#else
textureDescriptor.storageMode = MTLStorageModeShared;
#endif
id <MTLTexture> texture = [device newTextureWithDescriptor:textureDescriptor];
[texture replaceRegion:MTLRegionMake2D(0, 0, (NSUInteger)width, (NSUInteger)height) mipmapLevel:0 withBytes:pixels bytesPerRow:(NSUInteger)width * 4];
self.fontTexture = texture;
}
- (MetalBuffer *)dequeueReusableBufferOfLength:(NSUInteger)length device:(id<MTLDevice>)device
{
NSTimeInterval now = [NSDate date].timeIntervalSince1970;
// Purge old buffers that haven't been useful for a while
if (now - self.lastBufferCachePurge > 1.0)
{
NSMutableArray *survivors = [NSMutableArray array];
for (MetalBuffer *candidate in self.bufferCache)
{
if (candidate.lastReuseTime > self.lastBufferCachePurge)
{
[survivors addObject:candidate];
}
}
self.bufferCache = [survivors mutableCopy];
self.lastBufferCachePurge = now;
}
// See if we have a buffer we can reuse
MetalBuffer *bestCandidate = nil;
for (MetalBuffer *candidate in self.bufferCache)
if (candidate.buffer.length >= length && (bestCandidate == nil || bestCandidate.lastReuseTime > candidate.lastReuseTime))
bestCandidate = candidate;
if (bestCandidate != nil)
{
[self.bufferCache removeObject:bestCandidate];
bestCandidate.lastReuseTime = now;
return bestCandidate;
}
// No luck; make a new buffer
id<MTLBuffer> backing = [device newBufferWithLength:length options:MTLResourceStorageModeShared];
return [[MetalBuffer alloc] initWithBuffer:backing];
}
- (void)enqueueReusableBuffer:(MetalBuffer *)buffer
{
[self.bufferCache addObject:buffer];
}
- (_Nullable id<MTLRenderPipelineState>)renderPipelineStateForFrameAndDevice:(id<MTLDevice>)device
{
// Try to retrieve a render pipeline state that is compatible with the framebuffer config for this frame
// The hit rate for this cache should be very near 100%.
id<MTLRenderPipelineState> renderPipelineState = self.renderPipelineStateCache[self.framebufferDescriptor];
if (renderPipelineState == nil)
{
// No luck; make a new render pipeline state
renderPipelineState = [self _renderPipelineStateForFramebufferDescriptor:self.framebufferDescriptor device:device];
// Cache render pipeline state for later reuse
self.renderPipelineStateCache[self.framebufferDescriptor] = renderPipelineState;
}
return renderPipelineState;
}
- (id<MTLRenderPipelineState>)_renderPipelineStateForFramebufferDescriptor:(FramebufferDescriptor *)descriptor device:(id<MTLDevice>)device
{
NSError *error = nil;
NSString *shaderSource = @""
"#include <metal_stdlib>\n"
"using namespace metal;\n"
"\n"
"struct Uniforms {\n"
" float4x4 projectionMatrix;\n"
"};\n"
"\n"
"struct VertexIn {\n"
" float2 position [[attribute(0)]];\n"
" float2 texCoords [[attribute(1)]];\n"
" uchar4 color [[attribute(2)]];\n"
"};\n"
"\n"
"struct VertexOut {\n"
" float4 position [[position]];\n"
" float2 texCoords;\n"
" float4 color;\n"
"};\n"
"\n"
"vertex VertexOut vertex_main(VertexIn in [[stage_in]],\n"
" constant Uniforms &uniforms [[buffer(1)]]) {\n"
" VertexOut out;\n"
" out.position = uniforms.projectionMatrix * float4(in.position, 0, 1);\n"
" out.texCoords = in.texCoords;\n"
" out.color = float4(in.color) / float4(255.0);\n"
" return out;\n"
"}\n"
"\n"
"fragment half4 fragment_main(VertexOut in [[stage_in]],\n"
" texture2d<half, access::sample> texture [[texture(0)]]) {\n"
" constexpr sampler linearSampler(coord::normalized, min_filter::linear, mag_filter::linear, mip_filter::linear);\n"
" half4 texColor = texture.sample(linearSampler, in.texCoords);\n"
" return half4(in.color) * texColor;\n"
"}\n";
id<MTLLibrary> library = [device newLibraryWithSource:shaderSource options:nil error:&error];
if (library == nil)
{
NSLog(@"Error: failed to create Metal library: %@", error);
return nil;
}
id<MTLFunction> vertexFunction = [library newFunctionWithName:@"vertex_main"];
id<MTLFunction> fragmentFunction = [library newFunctionWithName:@"fragment_main"];
if (vertexFunction == nil || fragmentFunction == nil)
{
NSLog(@"Error: failed to find Metal shader functions in library: %@", error);
return nil;
}
MTLVertexDescriptor *vertexDescriptor = [MTLVertexDescriptor vertexDescriptor];
vertexDescriptor.attributes[0].offset = IM_OFFSETOF(ImDrawVert, pos);
vertexDescriptor.attributes[0].format = MTLVertexFormatFloat2; // position
vertexDescriptor.attributes[0].bufferIndex = 0;
vertexDescriptor.attributes[1].offset = IM_OFFSETOF(ImDrawVert, uv);
vertexDescriptor.attributes[1].format = MTLVertexFormatFloat2; // texCoords
vertexDescriptor.attributes[1].bufferIndex = 0;
vertexDescriptor.attributes[2].offset = IM_OFFSETOF(ImDrawVert, col);
vertexDescriptor.attributes[2].format = MTLVertexFormatUChar4; // color
vertexDescriptor.attributes[2].bufferIndex = 0;
vertexDescriptor.layouts[0].stepRate = 1;
vertexDescriptor.layouts[0].stepFunction = MTLVertexStepFunctionPerVertex;
vertexDescriptor.layouts[0].stride = sizeof(ImDrawVert);
MTLRenderPipelineDescriptor *pipelineDescriptor = [[MTLRenderPipelineDescriptor alloc] init];
pipelineDescriptor.vertexFunction = vertexFunction;
pipelineDescriptor.fragmentFunction = fragmentFunction;
pipelineDescriptor.vertexDescriptor = vertexDescriptor;
pipelineDescriptor.sampleCount = self.framebufferDescriptor.sampleCount;
pipelineDescriptor.colorAttachments[0].pixelFormat = self.framebufferDescriptor.colorPixelFormat;
pipelineDescriptor.colorAttachments[0].blendingEnabled = YES;
pipelineDescriptor.colorAttachments[0].rgbBlendOperation = MTLBlendOperationAdd;
pipelineDescriptor.colorAttachments[0].sourceRGBBlendFactor = MTLBlendFactorSourceAlpha;
pipelineDescriptor.colorAttachments[0].destinationRGBBlendFactor = MTLBlendFactorOneMinusSourceAlpha;
pipelineDescriptor.colorAttachments[0].alphaBlendOperation = MTLBlendOperationAdd;
pipelineDescriptor.colorAttachments[0].sourceAlphaBlendFactor = MTLBlendFactorOne;
pipelineDescriptor.colorAttachments[0].destinationAlphaBlendFactor = MTLBlendFactorOneMinusSourceAlpha;
pipelineDescriptor.depthAttachmentPixelFormat = self.framebufferDescriptor.depthPixelFormat;
pipelineDescriptor.stencilAttachmentPixelFormat = self.framebufferDescriptor.stencilPixelFormat;
id<MTLRenderPipelineState> renderPipelineState = [device newRenderPipelineStateWithDescriptor:pipelineDescriptor error:&error];
if (error != nil)
{
NSLog(@"Error: failed to create Metal pipeline state: %@", error);
}
return renderPipelineState;
}
- (void)emptyRenderPipelineStateCache
{
[self.renderPipelineStateCache removeAllObjects];
}
- (void)setupRenderState:(ImDrawData *)drawData
commandBuffer:(id<MTLCommandBuffer>)commandBuffer
commandEncoder:(id<MTLRenderCommandEncoder>)commandEncoder
renderPipelineState:(id<MTLRenderPipelineState>)renderPipelineState
vertexBuffer:(MetalBuffer *)vertexBuffer
vertexBufferOffset:(size_t)vertexBufferOffset
{
[commandEncoder setCullMode:MTLCullModeNone];
[commandEncoder setDepthStencilState:g_sharedMetalContext.depthStencilState];
// Setup viewport, orthographic projection matrix
// Our visible imgui space lies from draw_data->DisplayPos (top left) to
// draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayMin is typically (0,0) for single viewport apps.
MTLViewport viewport =
{
.originX = 0.0,
.originY = 0.0,
.width = (double)(drawData->DisplaySize.x * drawData->FramebufferScale.x),
.height = (double)(drawData->DisplaySize.y * drawData->FramebufferScale.y),
.znear = 0.0,
.zfar = 1.0
};
[commandEncoder setViewport:viewport];
float L = drawData->DisplayPos.x;
float R = drawData->DisplayPos.x + drawData->DisplaySize.x;
float T = drawData->DisplayPos.y;
float B = drawData->DisplayPos.y + drawData->DisplaySize.y;
float N = (float)viewport.znear;
float F = (float)viewport.zfar;
const float ortho_projection[4][4] =
{
{ 2.0f/(R-L), 0.0f, 0.0f, 0.0f },
{ 0.0f, 2.0f/(T-B), 0.0f, 0.0f },
{ 0.0f, 0.0f, 1/(F-N), 0.0f },
{ (R+L)/(L-R), (T+B)/(B-T), N/(F-N), 1.0f },
};
[commandEncoder setVertexBytes:&ortho_projection length:sizeof(ortho_projection) atIndex:1];
[commandEncoder setRenderPipelineState:renderPipelineState];
[commandEncoder setVertexBuffer:vertexBuffer.buffer offset:0 atIndex:0];
[commandEncoder setVertexBufferOffset:vertexBufferOffset atIndex:0];
}
- (void)renderDrawData:(ImDrawData *)drawData
commandBuffer:(id<MTLCommandBuffer>)commandBuffer
commandEncoder:(id<MTLRenderCommandEncoder>)commandEncoder
{
// Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates)
int fb_width = (int)(drawData->DisplaySize.x * drawData->FramebufferScale.x);
int fb_height = (int)(drawData->DisplaySize.y * drawData->FramebufferScale.y);
if (fb_width <= 0 || fb_height <= 0 || drawData->CmdListsCount == 0)
return;
id<MTLRenderPipelineState> renderPipelineState = [self renderPipelineStateForFrameAndDevice:commandBuffer.device];
size_t vertexBufferLength = (size_t)drawData->TotalVtxCount * sizeof(ImDrawVert);
size_t indexBufferLength = (size_t)drawData->TotalIdxCount * sizeof(ImDrawIdx);
MetalBuffer* vertexBuffer = [self dequeueReusableBufferOfLength:vertexBufferLength device:commandBuffer.device];
MetalBuffer* indexBuffer = [self dequeueReusableBufferOfLength:indexBufferLength device:commandBuffer.device];
[self setupRenderState:drawData commandBuffer:commandBuffer commandEncoder:commandEncoder renderPipelineState:renderPipelineState vertexBuffer:vertexBuffer vertexBufferOffset:0];
// Will project scissor/clipping rectangles into framebuffer space
ImVec2 clip_off = drawData->DisplayPos; // (0,0) unless using multi-viewports
ImVec2 clip_scale = drawData->FramebufferScale; // (1,1) unless using retina display which are often (2,2)
// Render command lists
size_t vertexBufferOffset = 0;
size_t indexBufferOffset = 0;
for (int n = 0; n < drawData->CmdListsCount; n++)
{
const ImDrawList* cmd_list = drawData->CmdLists[n];
memcpy((char *)vertexBuffer.buffer.contents + vertexBufferOffset, cmd_list->VtxBuffer.Data, (size_t)cmd_list->VtxBuffer.Size * sizeof(ImDrawVert));
memcpy((char *)indexBuffer.buffer.contents + indexBufferOffset, cmd_list->IdxBuffer.Data, (size_t)cmd_list->IdxBuffer.Size * sizeof(ImDrawIdx));
for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
{
const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i];
if (pcmd->UserCallback)
{
// User callback, registered via ImDrawList::AddCallback()
// (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
[self setupRenderState:drawData commandBuffer:commandBuffer commandEncoder:commandEncoder renderPipelineState:renderPipelineState vertexBuffer:vertexBuffer vertexBufferOffset:vertexBufferOffset];
else
pcmd->UserCallback(cmd_list, pcmd);
}
else
{
// Project scissor/clipping rectangles into framebuffer space
ImVec2 clip_min((pcmd->ClipRect.x - clip_off.x) * clip_scale.x, (pcmd->ClipRect.y - clip_off.y) * clip_scale.y);
ImVec2 clip_max((pcmd->ClipRect.z - clip_off.x) * clip_scale.x, (pcmd->ClipRect.w - clip_off.y) * clip_scale.y);
// Clamp to viewport as setScissorRect() won't accept values that are off bounds
if (clip_min.x < 0.0f) { clip_min.x = 0.0f; }
if (clip_min.y < 0.0f) { clip_min.y = 0.0f; }
if (clip_max.x > fb_width) { clip_max.x = (float)fb_width; }
if (clip_max.y > fb_height) { clip_max.y = (float)fb_height; }
if (clip_max.x < clip_min.x || clip_max.y < clip_min.y)
continue;
// Apply scissor/clipping rectangle
MTLScissorRect scissorRect =
{
.x = NSUInteger(clip_min.x),
.y = NSUInteger(clip_min.y),
.width = NSUInteger(clip_max.x - clip_min.x),
.height = NSUInteger(clip_max.y - clip_min.y)
};
[commandEncoder setScissorRect:scissorRect];
// Bind texture, Draw
if (ImTextureID tex_id = pcmd->GetTexID())
[commandEncoder setFragmentTexture:(__bridge id<MTLTexture>)(tex_id) atIndex:0];
[commandEncoder setVertexBufferOffset:(vertexBufferOffset + pcmd->VtxOffset * sizeof(ImDrawVert)) atIndex:0];
[commandEncoder drawIndexedPrimitives:MTLPrimitiveTypeTriangle
indexCount:pcmd->ElemCount
indexType:sizeof(ImDrawIdx) == 2 ? MTLIndexTypeUInt16 : MTLIndexTypeUInt32
indexBuffer:indexBuffer.buffer
indexBufferOffset:indexBufferOffset + pcmd->IdxOffset * sizeof(ImDrawIdx)];
}
}
vertexBufferOffset += (size_t)cmd_list->VtxBuffer.Size * sizeof(ImDrawVert);
indexBufferOffset += (size_t)cmd_list->IdxBuffer.Size * sizeof(ImDrawIdx);
}
__weak id weakSelf = self;
[commandBuffer addCompletedHandler:^(id<MTLCommandBuffer>)
{
dispatch_async(dispatch_get_main_queue(), ^{
[weakSelf enqueueReusableBuffer:vertexBuffer];
[weakSelf enqueueReusableBuffer:indexBuffer];
});
}];
}
@end

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// dear imgui: Renderer Backend for OpenGL2 (legacy OpenGL, fixed pipeline)
// This needs to be used along with a Platform Backend (e.g. GLFW, SDL, Win32, custom..)
// Implemented features:
// [X] Renderer: User texture binding. Use 'GLuint' OpenGL texture identifier as void*/ImTextureID. Read the FAQ about ImTextureID!
// [X] Renderer: Multi-viewport support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// **DO NOT USE THIS CODE IF YOUR CODE/ENGINE IS USING MODERN OPENGL (SHADERS, VBO, VAO, etc.)**
// **Prefer using the code in imgui_impl_opengl3.cpp**
// This code is mostly provided as a reference to learn how ImGui integration works, because it is shorter to read.
// If your code is using GL3+ context or any semi modern OpenGL calls, using this is likely to make everything more
// complicated, will require your code to reset every single OpenGL attributes to their initial state, and might
// confuse your GPU driver.
// The GL2 code is unable to reset attributes or even call e.g. "glUseProgram(0)" because they don't exist in that API.
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2021-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
// 2021-06-29: Reorganized backend to pull data from a single structure to facilitate usage with multiple-contexts (all g_XXXX access changed to bd->XXXX).
// 2021-05-19: OpenGL: Replaced direct access to ImDrawCmd::TextureId with a call to ImDrawCmd::GetTexID(). (will become a requirement)
// 2021-01-03: OpenGL: Backup, setup and restore GL_SHADE_MODEL state, disable GL_STENCIL_TEST and disable GL_NORMAL_ARRAY client state to increase compatibility with legacy OpenGL applications.
// 2020-01-23: OpenGL: Backup, setup and restore GL_TEXTURE_ENV to increase compatibility with legacy OpenGL applications.
// 2019-04-30: OpenGL: Added support for special ImDrawCallback_ResetRenderState callback to reset render state.
// 2019-02-11: OpenGL: Projecting clipping rectangles correctly using draw_data->FramebufferScale to allow multi-viewports for retina display.
// 2018-11-30: Misc: Setting up io.BackendRendererName so it can be displayed in the About Window.
// 2018-08-03: OpenGL: Disabling/restoring GL_LIGHTING and GL_COLOR_MATERIAL to increase compatibility with legacy OpenGL applications.
// 2018-06-08: Misc: Extracted imgui_impl_opengl2.cpp/.h away from the old combined GLFW/SDL+OpenGL2 examples.
// 2018-06-08: OpenGL: Use draw_data->DisplayPos and draw_data->DisplaySize to setup projection matrix and clipping rectangle.
// 2018-02-16: Misc: Obsoleted the io.RenderDrawListsFn callback and exposed ImGui_ImplOpenGL2_RenderDrawData() in the .h file so you can call it yourself.
// 2017-09-01: OpenGL: Save and restore current polygon mode.
// 2016-09-10: OpenGL: Uploading font texture as RGBA32 to increase compatibility with users shaders (not ideal).
// 2016-09-05: OpenGL: Fixed save and restore of current scissor rectangle.
#include "imgui.h"
#include "imgui_impl_opengl2.h"
#if defined(_MSC_VER) && _MSC_VER <= 1500 // MSVC 2008 or earlier
#include <stddef.h> // intptr_t
#else
#include <stdint.h> // intptr_t
#endif
// Include OpenGL header (without an OpenGL loader) requires a bit of fiddling
#if defined(_WIN32) && !defined(APIENTRY)
#define APIENTRY __stdcall // It is customary to use APIENTRY for OpenGL function pointer declarations on all platforms. Additionally, the Windows OpenGL header needs APIENTRY.
#endif
#if defined(_WIN32) && !defined(WINGDIAPI)
#define WINGDIAPI __declspec(dllimport) // Some Windows OpenGL headers need this
#endif
#if defined(__APPLE__)
#define GL_SILENCE_DEPRECATION
#include <OpenGL/gl.h>
#else
#include <GL/gl.h>
#endif
struct ImGui_ImplOpenGL2_Data
{
GLuint FontTexture;
ImGui_ImplOpenGL2_Data() { memset(this, 0, sizeof(*this)); }
};
// Backend data stored in io.BackendRendererUserData to allow support for multiple Dear ImGui contexts
// It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts.
static ImGui_ImplOpenGL2_Data* ImGui_ImplOpenGL2_GetBackendData()
{
return ImGui::GetCurrentContext() ? (ImGui_ImplOpenGL2_Data*)ImGui::GetIO().BackendRendererUserData : NULL;
}
// Forward Declarations
static void ImGui_ImplOpenGL2_InitPlatformInterface();
static void ImGui_ImplOpenGL2_ShutdownPlatformInterface();
// Functions
bool ImGui_ImplOpenGL2_Init()
{
ImGuiIO& io = ImGui::GetIO();
IM_ASSERT(io.BackendRendererUserData == NULL && "Already initialized a renderer backend!");
// Setup backend capabilities flags
ImGui_ImplOpenGL2_Data* bd = IM_NEW(ImGui_ImplOpenGL2_Data)();
io.BackendRendererUserData = (void*)bd;
io.BackendRendererName = "imgui_impl_opengl2";
io.BackendFlags |= ImGuiBackendFlags_RendererHasViewports; // We can create multi-viewports on the Renderer side (optional)
if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
ImGui_ImplOpenGL2_InitPlatformInterface();
return true;
}
void ImGui_ImplOpenGL2_Shutdown()
{
ImGui_ImplOpenGL2_Data* bd = ImGui_ImplOpenGL2_GetBackendData();
IM_ASSERT(bd != NULL && "No renderer backend to shutdown, or already shutdown?");
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplOpenGL2_ShutdownPlatformInterface();
ImGui_ImplOpenGL2_DestroyDeviceObjects();
io.BackendRendererName = NULL;
io.BackendRendererUserData = NULL;
IM_DELETE(bd);
}
void ImGui_ImplOpenGL2_NewFrame()
{
ImGui_ImplOpenGL2_Data* bd = ImGui_ImplOpenGL2_GetBackendData();
IM_ASSERT(bd != NULL && "Did you call ImGui_ImplOpenGL2_Init()?");
if (!bd->FontTexture)
ImGui_ImplOpenGL2_CreateDeviceObjects();
}
static void ImGui_ImplOpenGL2_SetupRenderState(ImDrawData* draw_data, int fb_width, int fb_height)
{
// Setup render state: alpha-blending enabled, no face culling, no depth testing, scissor enabled, vertex/texcoord/color pointers, polygon fill.
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
//glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA); // In order to composite our output buffer we need to preserve alpha
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
glDisable(GL_STENCIL_TEST);
glDisable(GL_LIGHTING);
glDisable(GL_COLOR_MATERIAL);
glEnable(GL_SCISSOR_TEST);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glEnableClientState(GL_COLOR_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
glEnable(GL_TEXTURE_2D);
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
glShadeModel(GL_SMOOTH);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
// If you are using this code with non-legacy OpenGL header/contexts (which you should not, prefer using imgui_impl_opengl3.cpp!!),
// you may need to backup/reset/restore other state, e.g. for current shader using the commented lines below.
// (DO NOT MODIFY THIS FILE! Add the code in your calling function)
// GLint last_program;
// glGetIntegerv(GL_CURRENT_PROGRAM, &last_program);
// glUseProgram(0);
// ImGui_ImplOpenGL2_RenderDrawData(...);
// glUseProgram(last_program)
// There are potentially many more states you could need to clear/setup that we can't access from default headers.
// e.g. glBindBuffer(GL_ARRAY_BUFFER, 0), glDisable(GL_TEXTURE_CUBE_MAP).
// Setup viewport, orthographic projection matrix
// Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayPos is (0,0) for single viewport apps.
glViewport(0, 0, (GLsizei)fb_width, (GLsizei)fb_height);
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glOrtho(draw_data->DisplayPos.x, draw_data->DisplayPos.x + draw_data->DisplaySize.x, draw_data->DisplayPos.y + draw_data->DisplaySize.y, draw_data->DisplayPos.y, -1.0f, +1.0f);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
}
// OpenGL2 Render function.
// Note that this implementation is little overcomplicated because we are saving/setting up/restoring every OpenGL state explicitly.
// This is in order to be able to run within an OpenGL engine that doesn't do so.
void ImGui_ImplOpenGL2_RenderDrawData(ImDrawData* draw_data)
{
// Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates)
int fb_width = (int)(draw_data->DisplaySize.x * draw_data->FramebufferScale.x);
int fb_height = (int)(draw_data->DisplaySize.y * draw_data->FramebufferScale.y);
if (fb_width == 0 || fb_height == 0)
return;
// Backup GL state
GLint last_texture; glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
GLint last_polygon_mode[2]; glGetIntegerv(GL_POLYGON_MODE, last_polygon_mode);
GLint last_viewport[4]; glGetIntegerv(GL_VIEWPORT, last_viewport);
GLint last_scissor_box[4]; glGetIntegerv(GL_SCISSOR_BOX, last_scissor_box);
GLint last_shade_model; glGetIntegerv(GL_SHADE_MODEL, &last_shade_model);
GLint last_tex_env_mode; glGetTexEnviv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, &last_tex_env_mode);
glPushAttrib(GL_ENABLE_BIT | GL_COLOR_BUFFER_BIT | GL_TRANSFORM_BIT);
// Setup desired GL state
ImGui_ImplOpenGL2_SetupRenderState(draw_data, fb_width, fb_height);
// Will project scissor/clipping rectangles into framebuffer space
ImVec2 clip_off = draw_data->DisplayPos; // (0,0) unless using multi-viewports
ImVec2 clip_scale = draw_data->FramebufferScale; // (1,1) unless using retina display which are often (2,2)
// Render command lists
for (int n = 0; n < draw_data->CmdListsCount; n++)
{
const ImDrawList* cmd_list = draw_data->CmdLists[n];
const ImDrawVert* vtx_buffer = cmd_list->VtxBuffer.Data;
const ImDrawIdx* idx_buffer = cmd_list->IdxBuffer.Data;
glVertexPointer(2, GL_FLOAT, sizeof(ImDrawVert), (const GLvoid*)((const char*)vtx_buffer + IM_OFFSETOF(ImDrawVert, pos)));
glTexCoordPointer(2, GL_FLOAT, sizeof(ImDrawVert), (const GLvoid*)((const char*)vtx_buffer + IM_OFFSETOF(ImDrawVert, uv)));
glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(ImDrawVert), (const GLvoid*)((const char*)vtx_buffer + IM_OFFSETOF(ImDrawVert, col)));
for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
{
const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i];
if (pcmd->UserCallback)
{
// User callback, registered via ImDrawList::AddCallback()
// (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
ImGui_ImplOpenGL2_SetupRenderState(draw_data, fb_width, fb_height);
else
pcmd->UserCallback(cmd_list, pcmd);
}
else
{
// Project scissor/clipping rectangles into framebuffer space
ImVec2 clip_min((pcmd->ClipRect.x - clip_off.x) * clip_scale.x, (pcmd->ClipRect.y - clip_off.y) * clip_scale.y);
ImVec2 clip_max((pcmd->ClipRect.z - clip_off.x) * clip_scale.x, (pcmd->ClipRect.w - clip_off.y) * clip_scale.y);
if (clip_max.x < clip_min.x || clip_max.y < clip_min.y)
continue;
// Apply scissor/clipping rectangle (Y is inverted in OpenGL)
glScissor((int)clip_min.x, (int)(fb_height - clip_max.y), (int)(clip_max.x - clip_min.x), (int)(clip_max.y - clip_min.y));
// Bind texture, Draw
glBindTexture(GL_TEXTURE_2D, (GLuint)(intptr_t)pcmd->GetTexID());
glDrawElements(GL_TRIANGLES, (GLsizei)pcmd->ElemCount, sizeof(ImDrawIdx) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT, idx_buffer);
}
idx_buffer += pcmd->ElemCount;
}
}
// Restore modified GL state
glDisableClientState(GL_COLOR_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisableClientState(GL_VERTEX_ARRAY);
glBindTexture(GL_TEXTURE_2D, (GLuint)last_texture);
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glPopAttrib();
glPolygonMode(GL_FRONT, (GLenum)last_polygon_mode[0]); glPolygonMode(GL_BACK, (GLenum)last_polygon_mode[1]);
glViewport(last_viewport[0], last_viewport[1], (GLsizei)last_viewport[2], (GLsizei)last_viewport[3]);
glScissor(last_scissor_box[0], last_scissor_box[1], (GLsizei)last_scissor_box[2], (GLsizei)last_scissor_box[3]);
glShadeModel(last_shade_model);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, last_tex_env_mode);
}
bool ImGui_ImplOpenGL2_CreateFontsTexture()
{
// Build texture atlas
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplOpenGL2_Data* bd = ImGui_ImplOpenGL2_GetBackendData();
unsigned char* pixels;
int width, height;
io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height); // Load as RGBA 32-bit (75% of the memory is wasted, but default font is so small) because it is more likely to be compatible with user's existing shaders. If your ImTextureId represent a higher-level concept than just a GL texture id, consider calling GetTexDataAsAlpha8() instead to save on GPU memory.
// Upload texture to graphics system
GLint last_texture;
glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
glGenTextures(1, &bd->FontTexture);
glBindTexture(GL_TEXTURE_2D, bd->FontTexture);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
// Store our identifier
io.Fonts->SetTexID((ImTextureID)(intptr_t)bd->FontTexture);
// Restore state
glBindTexture(GL_TEXTURE_2D, last_texture);
return true;
}
void ImGui_ImplOpenGL2_DestroyFontsTexture()
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplOpenGL2_Data* bd = ImGui_ImplOpenGL2_GetBackendData();
if (bd->FontTexture)
{
glDeleteTextures(1, &bd->FontTexture);
io.Fonts->SetTexID(0);
bd->FontTexture = 0;
}
}
bool ImGui_ImplOpenGL2_CreateDeviceObjects()
{
return ImGui_ImplOpenGL2_CreateFontsTexture();
}
void ImGui_ImplOpenGL2_DestroyDeviceObjects()
{
ImGui_ImplOpenGL2_DestroyFontsTexture();
}
//--------------------------------------------------------------------------------------------------------
// MULTI-VIEWPORT / PLATFORM INTERFACE SUPPORT
// This is an _advanced_ and _optional_ feature, allowing the backend to create and handle multiple viewports simultaneously.
// If you are new to dear imgui or creating a new binding for dear imgui, it is recommended that you completely ignore this section first..
//--------------------------------------------------------------------------------------------------------
static void ImGui_ImplOpenGL2_RenderWindow(ImGuiViewport* viewport, void*)
{
if (!(viewport->Flags & ImGuiViewportFlags_NoRendererClear))
{
ImVec4 clear_color = ImVec4(0.0f, 0.0f, 0.0f, 1.0f);
glClearColor(clear_color.x, clear_color.y, clear_color.z, clear_color.w);
glClear(GL_COLOR_BUFFER_BIT);
}
ImGui_ImplOpenGL2_RenderDrawData(viewport->DrawData);
}
static void ImGui_ImplOpenGL2_InitPlatformInterface()
{
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
platform_io.Renderer_RenderWindow = ImGui_ImplOpenGL2_RenderWindow;
}
static void ImGui_ImplOpenGL2_ShutdownPlatformInterface()
{
ImGui::DestroyPlatformWindows();
}

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// dear imgui: Renderer Backend for OpenGL2 (legacy OpenGL, fixed pipeline)
// This needs to be used along with a Platform Backend (e.g. GLFW, SDL, Win32, custom..)
// Implemented features:
// [X] Renderer: User texture binding. Use 'GLuint' OpenGL texture identifier as void*/ImTextureID. Read the FAQ about ImTextureID!
// [X] Renderer: Multi-viewport support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// **DO NOT USE THIS CODE IF YOUR CODE/ENGINE IS USING MODERN OPENGL (SHADERS, VBO, VAO, etc.)**
// **Prefer using the code in imgui_impl_opengl3.cpp**
// This code is mostly provided as a reference to learn how ImGui integration works, because it is shorter to read.
// If your code is using GL3+ context or any semi modern OpenGL calls, using this is likely to make everything more
// complicated, will require your code to reset every single OpenGL attributes to their initial state, and might
// confuse your GPU driver.
// The GL2 code is unable to reset attributes or even call e.g. "glUseProgram(0)" because they don't exist in that API.
#pragma once
#include "imgui.h" // IMGUI_IMPL_API
IMGUI_IMPL_API bool ImGui_ImplOpenGL2_Init();
IMGUI_IMPL_API void ImGui_ImplOpenGL2_Shutdown();
IMGUI_IMPL_API void ImGui_ImplOpenGL2_NewFrame();
IMGUI_IMPL_API void ImGui_ImplOpenGL2_RenderDrawData(ImDrawData* draw_data);
// Called by Init/NewFrame/Shutdown
IMGUI_IMPL_API bool ImGui_ImplOpenGL2_CreateFontsTexture();
IMGUI_IMPL_API void ImGui_ImplOpenGL2_DestroyFontsTexture();
IMGUI_IMPL_API bool ImGui_ImplOpenGL2_CreateDeviceObjects();
IMGUI_IMPL_API void ImGui_ImplOpenGL2_DestroyDeviceObjects();

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// dear imgui: Renderer Backend for modern OpenGL with shaders / programmatic pipeline
// - Desktop GL: 2.x 3.x 4.x
// - Embedded GL: ES 2.0 (WebGL 1.0), ES 3.0 (WebGL 2.0)
// This needs to be used along with a Platform Backend (e.g. GLFW, SDL, Win32, custom..)
// Implemented features:
// [X] Renderer: User texture binding. Use 'GLuint' OpenGL texture identifier as void*/ImTextureID. Read the FAQ about ImTextureID!
// [X] Renderer: Multi-viewport support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
// [x] Renderer: Desktop GL only: Support for large meshes (64k+ vertices) with 16-bit indices.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2021-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
// 2021-08-23: OpenGL: Fixed ES 3.0 shader ("#version 300 es") use normal precision floats to avoid wobbly rendering at HD resolutions.
// 2021-08-19: OpenGL: Embed and use our own minimal GL loader (imgui_impl_opengl3_loader.h), removing requirement and support for third-party loader.
// 2021-06-29: Reorganized backend to pull data from a single structure to facilitate usage with multiple-contexts (all g_XXXX access changed to bd->XXXX).
// 2021-06-25: OpenGL: Use OES_vertex_array extension on Emscripten + backup/restore current state.
// 2021-06-21: OpenGL: Destroy individual vertex/fragment shader objects right after they are linked into the main shader.
// 2021-05-24: OpenGL: Access GL_CLIP_ORIGIN when "GL_ARB_clip_control" extension is detected, inside of just OpenGL 4.5 version.
// 2021-05-19: OpenGL: Replaced direct access to ImDrawCmd::TextureId with a call to ImDrawCmd::GetTexID(). (will become a requirement)
// 2021-04-06: OpenGL: Don't try to read GL_CLIP_ORIGIN unless we're OpenGL 4.5 or greater.
// 2021-02-18: OpenGL: Change blending equation to preserve alpha in output buffer.
// 2021-01-03: OpenGL: Backup, setup and restore GL_STENCIL_TEST state.
// 2020-10-23: OpenGL: Backup, setup and restore GL_PRIMITIVE_RESTART state.
// 2020-10-15: OpenGL: Use glGetString(GL_VERSION) instead of glGetIntegerv(GL_MAJOR_VERSION, ...) when the later returns zero (e.g. Desktop GL 2.x)
// 2020-09-17: OpenGL: Fix to avoid compiling/calling glBindSampler() on ES or pre 3.3 context which have the defines set by a loader.
// 2020-07-10: OpenGL: Added support for glad2 OpenGL loader.
// 2020-05-08: OpenGL: Made default GLSL version 150 (instead of 130) on OSX.
// 2020-04-21: OpenGL: Fixed handling of glClipControl(GL_UPPER_LEFT) by inverting projection matrix.
// 2020-04-12: OpenGL: Fixed context version check mistakenly testing for 4.0+ instead of 3.2+ to enable ImGuiBackendFlags_RendererHasVtxOffset.
// 2020-03-24: OpenGL: Added support for glbinding 2.x OpenGL loader.
// 2020-01-07: OpenGL: Added support for glbinding 3.x OpenGL loader.
// 2019-10-25: OpenGL: Using a combination of GL define and runtime GL version to decide whether to use glDrawElementsBaseVertex(). Fix building with pre-3.2 GL loaders.
// 2019-09-22: OpenGL: Detect default GL loader using __has_include compiler facility.
// 2019-09-16: OpenGL: Tweak initialization code to allow application calling ImGui_ImplOpenGL3_CreateFontsTexture() before the first NewFrame() call.
// 2019-05-29: OpenGL: Desktop GL only: Added support for large mesh (64K+ vertices), enable ImGuiBackendFlags_RendererHasVtxOffset flag.
// 2019-04-30: OpenGL: Added support for special ImDrawCallback_ResetRenderState callback to reset render state.
// 2019-03-29: OpenGL: Not calling glBindBuffer more than necessary in the render loop.
// 2019-03-15: OpenGL: Added a GL call + comments in ImGui_ImplOpenGL3_Init() to detect uninitialized GL function loaders early.
// 2019-03-03: OpenGL: Fix support for ES 2.0 (WebGL 1.0).
// 2019-02-20: OpenGL: Fix for OSX not supporting OpenGL 4.5, we don't try to read GL_CLIP_ORIGIN even if defined by the headers/loader.
// 2019-02-11: OpenGL: Projecting clipping rectangles correctly using draw_data->FramebufferScale to allow multi-viewports for retina display.
// 2019-02-01: OpenGL: Using GLSL 410 shaders for any version over 410 (e.g. 430, 450).
// 2018-11-30: Misc: Setting up io.BackendRendererName so it can be displayed in the About Window.
// 2018-11-13: OpenGL: Support for GL 4.5's glClipControl(GL_UPPER_LEFT) / GL_CLIP_ORIGIN.
// 2018-08-29: OpenGL: Added support for more OpenGL loaders: glew and glad, with comments indicative that any loader can be used.
// 2018-08-09: OpenGL: Default to OpenGL ES 3 on iOS and Android. GLSL version default to "#version 300 ES".
// 2018-07-30: OpenGL: Support for GLSL 300 ES and 410 core. Fixes for Emscripten compilation.
// 2018-07-10: OpenGL: Support for more GLSL versions (based on the GLSL version string). Added error output when shaders fail to compile/link.
// 2018-06-08: Misc: Extracted imgui_impl_opengl3.cpp/.h away from the old combined GLFW/SDL+OpenGL3 examples.
// 2018-06-08: OpenGL: Use draw_data->DisplayPos and draw_data->DisplaySize to setup projection matrix and clipping rectangle.
// 2018-05-25: OpenGL: Removed unnecessary backup/restore of GL_ELEMENT_ARRAY_BUFFER_BINDING since this is part of the VAO state.
// 2018-05-14: OpenGL: Making the call to glBindSampler() optional so 3.2 context won't fail if the function is a NULL pointer.
// 2018-03-06: OpenGL: Added const char* glsl_version parameter to ImGui_ImplOpenGL3_Init() so user can override the GLSL version e.g. "#version 150".
// 2018-02-23: OpenGL: Create the VAO in the render function so the setup can more easily be used with multiple shared GL context.
// 2018-02-16: Misc: Obsoleted the io.RenderDrawListsFn callback and exposed ImGui_ImplSdlGL3_RenderDrawData() in the .h file so you can call it yourself.
// 2018-01-07: OpenGL: Changed GLSL shader version from 330 to 150.
// 2017-09-01: OpenGL: Save and restore current bound sampler. Save and restore current polygon mode.
// 2017-05-01: OpenGL: Fixed save and restore of current blend func state.
// 2017-05-01: OpenGL: Fixed save and restore of current GL_ACTIVE_TEXTURE.
// 2016-09-05: OpenGL: Fixed save and restore of current scissor rectangle.
// 2016-07-29: OpenGL: Explicitly setting GL_UNPACK_ROW_LENGTH to reduce issues because SDL changes it. (#752)
//----------------------------------------
// OpenGL GLSL GLSL
// version version string
//----------------------------------------
// 2.0 110 "#version 110"
// 2.1 120 "#version 120"
// 3.0 130 "#version 130"
// 3.1 140 "#version 140"
// 3.2 150 "#version 150"
// 3.3 330 "#version 330 core"
// 4.0 400 "#version 400 core"
// 4.1 410 "#version 410 core"
// 4.2 420 "#version 410 core"
// 4.3 430 "#version 430 core"
// ES 2.0 100 "#version 100" = WebGL 1.0
// ES 3.0 300 "#version 300 es" = WebGL 2.0
//----------------------------------------
#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
#define _CRT_SECURE_NO_WARNINGS
#endif
#include "imgui.h"
#include "imgui_impl_opengl3.h"
#include <stdio.h>
#if defined(_MSC_VER) && _MSC_VER <= 1500 // MSVC 2008 or earlier
#include <stddef.h> // intptr_t
#else
#include <stdint.h> // intptr_t
#endif
// GL includes
#if defined(IMGUI_IMPL_OPENGL_ES2)
#include <GLES2/gl2.h>
#if defined(__EMSCRIPTEN__)
#ifndef GL_GLEXT_PROTOTYPES
#define GL_GLEXT_PROTOTYPES
#endif
#include <GLES2/gl2ext.h>
#endif
#elif defined(IMGUI_IMPL_OPENGL_ES3)
#if defined(__APPLE__)
#include <TargetConditionals.h>
#endif
#if (defined(__APPLE__) && (TARGET_OS_IOS || TARGET_OS_TV))
#include <OpenGLES/ES3/gl.h> // Use GL ES 3
#else
#include <GLES3/gl3.h> // Use GL ES 3
#endif
#elif !defined(IMGUI_IMPL_OPENGL_LOADER_CUSTOM)
// Modern desktop OpenGL doesn't have a standard portable header file to load OpenGL function pointers.
// Helper libraries are often used for this purpose! Here we are using our own minimal custom loader based on gl3w.
// In the rest of your app/engine, you can use another loader of your choice (gl3w, glew, glad, glbinding, glext, glLoadGen, etc.).
// If you happen to be developing a new feature for this backend (imgui_impl_opengl3.cpp):
// - You may need to regenerate imgui_impl_opengl3_loader.h to add new symbols. See https://github.com/dearimgui/gl3w_stripped
// - You can temporarily use an unstripped version. See https://github.com/dearimgui/gl3w_stripped/releases
// Changes to this backend using new APIs should be accompanied by a regenerated stripped loader version.
#define IMGL3W_IMPL
#include "imgui_impl_opengl3_loader.h"
#endif
// Vertex arrays are not supported on ES2/WebGL1 unless Emscripten which uses an extension
#ifndef IMGUI_IMPL_OPENGL_ES2
#define IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
#elif defined(__EMSCRIPTEN__)
#define IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
#define glBindVertexArray glBindVertexArrayOES
#define glGenVertexArrays glGenVertexArraysOES
#define glDeleteVertexArrays glDeleteVertexArraysOES
#define GL_VERTEX_ARRAY_BINDING GL_VERTEX_ARRAY_BINDING_OES
#endif
// Desktop GL 2.0+ has glPolygonMode() which GL ES and WebGL don't have.
#ifdef GL_POLYGON_MODE
#define IMGUI_IMPL_HAS_POLYGON_MODE
#endif
// Desktop GL 3.2+ has glDrawElementsBaseVertex() which GL ES and WebGL don't have.
#if !defined(IMGUI_IMPL_OPENGL_ES2) && !defined(IMGUI_IMPL_OPENGL_ES3) && defined(GL_VERSION_3_2)
#define IMGUI_IMPL_OPENGL_MAY_HAVE_VTX_OFFSET
#endif
// Desktop GL 3.3+ has glBindSampler()
#if !defined(IMGUI_IMPL_OPENGL_ES2) && !defined(IMGUI_IMPL_OPENGL_ES3) && defined(GL_VERSION_3_3)
#define IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_SAMPLER
#endif
// Desktop GL 3.1+ has GL_PRIMITIVE_RESTART state
#if !defined(IMGUI_IMPL_OPENGL_ES2) && !defined(IMGUI_IMPL_OPENGL_ES3) && defined(GL_VERSION_3_1)
#define IMGUI_IMPL_OPENGL_MAY_HAVE_PRIMITIVE_RESTART
#endif
// Desktop GL use extension detection
#if !defined(IMGUI_IMPL_OPENGL_ES2) && !defined(IMGUI_IMPL_OPENGL_ES3)
#define IMGUI_IMPL_OPENGL_MAY_HAVE_EXTENSIONS
#endif
// OpenGL Data
struct ImGui_ImplOpenGL3_Data
{
GLuint GlVersion; // Extracted at runtime using GL_MAJOR_VERSION, GL_MINOR_VERSION queries (e.g. 320 for GL 3.2)
char GlslVersionString[32]; // Specified by user or detected based on compile time GL settings.
GLuint FontTexture;
GLuint ShaderHandle;
GLint AttribLocationTex; // Uniforms location
GLint AttribLocationProjMtx;
GLuint AttribLocationVtxPos; // Vertex attributes location
GLuint AttribLocationVtxUV;
GLuint AttribLocationVtxColor;
unsigned int VboHandle, ElementsHandle;
bool HasClipOrigin;
ImGui_ImplOpenGL3_Data() { memset(this, 0, sizeof(*this)); }
};
// Backend data stored in io.BackendRendererUserData to allow support for multiple Dear ImGui contexts
// It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts.
static ImGui_ImplOpenGL3_Data* ImGui_ImplOpenGL3_GetBackendData()
{
return ImGui::GetCurrentContext() ? (ImGui_ImplOpenGL3_Data*)ImGui::GetIO().BackendRendererUserData : NULL;
}
// Forward Declarations
static void ImGui_ImplOpenGL3_InitPlatformInterface();
static void ImGui_ImplOpenGL3_ShutdownPlatformInterface();
// Functions
bool ImGui_ImplOpenGL3_Init(const char* glsl_version)
{
ImGuiIO& io = ImGui::GetIO();
IM_ASSERT(io.BackendRendererUserData == NULL && "Already initialized a renderer backend!");
// Initialize our loader
#if !defined(IMGUI_IMPL_OPENGL_ES2) && !defined(IMGUI_IMPL_OPENGL_ES3) && !defined(IMGUI_IMPL_OPENGL_LOADER_CUSTOM)
if (imgl3wInit() != 0)
{
fprintf(stderr, "Failed to initialize OpenGL loader!\n");
return false;
}
#endif
// Setup backend capabilities flags
ImGui_ImplOpenGL3_Data* bd = IM_NEW(ImGui_ImplOpenGL3_Data)();
io.BackendRendererUserData = (void*)bd;
io.BackendRendererName = "imgui_impl_opengl3";
// Query for GL version (e.g. 320 for GL 3.2)
#if !defined(IMGUI_IMPL_OPENGL_ES2)
GLint major = 0;
GLint minor = 0;
glGetIntegerv(GL_MAJOR_VERSION, &major);
glGetIntegerv(GL_MINOR_VERSION, &minor);
if (major == 0 && minor == 0)
{
// Query GL_VERSION in desktop GL 2.x, the string will start with "<major>.<minor>"
const char* gl_version = (const char*)glGetString(GL_VERSION);
sscanf(gl_version, "%d.%d", &major, &minor);
}
bd->GlVersion = (GLuint)(major * 100 + minor * 10);
#else
bd->GlVersion = 200; // GLES 2
#endif
#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_VTX_OFFSET
if (bd->GlVersion >= 320)
io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset; // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
#endif
io.BackendFlags |= ImGuiBackendFlags_RendererHasViewports; // We can create multi-viewports on the Renderer side (optional)
// Store GLSL version string so we can refer to it later in case we recreate shaders.
// Note: GLSL version is NOT the same as GL version. Leave this to NULL if unsure.
if (glsl_version == NULL)
{
#if defined(IMGUI_IMPL_OPENGL_ES2)
glsl_version = "#version 100";
#elif defined(IMGUI_IMPL_OPENGL_ES3)
glsl_version = "#version 300 es";
#elif defined(__APPLE__)
glsl_version = "#version 150";
#else
glsl_version = "#version 130";
#endif
}
IM_ASSERT((int)strlen(glsl_version) + 2 < IM_ARRAYSIZE(bd->GlslVersionString));
strcpy(bd->GlslVersionString, glsl_version);
strcat(bd->GlslVersionString, "\n");
// Make an arbitrary GL call (we don't actually need the result)
// IF YOU GET A CRASH HERE: it probably means the OpenGL function loader didn't do its job. Let us know!
GLint current_texture;
glGetIntegerv(GL_TEXTURE_BINDING_2D, &current_texture);
// Detect extensions we support
bd->HasClipOrigin = (bd->GlVersion >= 450);
#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_EXTENSIONS
GLint num_extensions = 0;
glGetIntegerv(GL_NUM_EXTENSIONS, &num_extensions);
for (GLint i = 0; i < num_extensions; i++)
{
const char* extension = (const char*)glGetStringi(GL_EXTENSIONS, i);
if (extension != NULL && strcmp(extension, "GL_ARB_clip_control") == 0)
bd->HasClipOrigin = true;
}
#endif
if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
ImGui_ImplOpenGL3_InitPlatformInterface();
return true;
}
void ImGui_ImplOpenGL3_Shutdown()
{
ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
IM_ASSERT(bd != NULL && "No renderer backend to shutdown, or already shutdown?");
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplOpenGL3_ShutdownPlatformInterface();
ImGui_ImplOpenGL3_DestroyDeviceObjects();
io.BackendRendererName = NULL;
io.BackendRendererUserData = NULL;
IM_DELETE(bd);
}
void ImGui_ImplOpenGL3_NewFrame()
{
ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
IM_ASSERT(bd != NULL && "Did you call ImGui_ImplOpenGL3_Init()?");
if (!bd->ShaderHandle)
ImGui_ImplOpenGL3_CreateDeviceObjects();
}
static void ImGui_ImplOpenGL3_SetupRenderState(ImDrawData* draw_data, int fb_width, int fb_height, GLuint vertex_array_object)
{
ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
// Setup render state: alpha-blending enabled, no face culling, no depth testing, scissor enabled, polygon fill
glEnable(GL_BLEND);
glBlendEquation(GL_FUNC_ADD);
glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
glDisable(GL_STENCIL_TEST);
glEnable(GL_SCISSOR_TEST);
#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_PRIMITIVE_RESTART
if (bd->GlVersion >= 310)
glDisable(GL_PRIMITIVE_RESTART);
#endif
#ifdef IMGUI_IMPL_HAS_POLYGON_MODE
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
#endif
// Support for GL 4.5 rarely used glClipControl(GL_UPPER_LEFT)
#if defined(GL_CLIP_ORIGIN)
bool clip_origin_lower_left = true;
if (bd->HasClipOrigin)
{
GLenum current_clip_origin = 0; glGetIntegerv(GL_CLIP_ORIGIN, (GLint*)&current_clip_origin);
if (current_clip_origin == GL_UPPER_LEFT)
clip_origin_lower_left = false;
}
#endif
// Setup viewport, orthographic projection matrix
// Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayPos is (0,0) for single viewport apps.
glViewport(0, 0, (GLsizei)fb_width, (GLsizei)fb_height);
float L = draw_data->DisplayPos.x;
float R = draw_data->DisplayPos.x + draw_data->DisplaySize.x;
float T = draw_data->DisplayPos.y;
float B = draw_data->DisplayPos.y + draw_data->DisplaySize.y;
#if defined(GL_CLIP_ORIGIN)
if (!clip_origin_lower_left) { float tmp = T; T = B; B = tmp; } // Swap top and bottom if origin is upper left
#endif
const float ortho_projection[4][4] =
{
{ 2.0f/(R-L), 0.0f, 0.0f, 0.0f },
{ 0.0f, 2.0f/(T-B), 0.0f, 0.0f },
{ 0.0f, 0.0f, -1.0f, 0.0f },
{ (R+L)/(L-R), (T+B)/(B-T), 0.0f, 1.0f },
};
glUseProgram(bd->ShaderHandle);
glUniform1i(bd->AttribLocationTex, 0);
glUniformMatrix4fv(bd->AttribLocationProjMtx, 1, GL_FALSE, &ortho_projection[0][0]);
#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_SAMPLER
if (bd->GlVersion >= 330)
glBindSampler(0, 0); // We use combined texture/sampler state. Applications using GL 3.3 may set that otherwise.
#endif
(void)vertex_array_object;
#ifdef IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
glBindVertexArray(vertex_array_object);
#endif
// Bind vertex/index buffers and setup attributes for ImDrawVert
glBindBuffer(GL_ARRAY_BUFFER, bd->VboHandle);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, bd->ElementsHandle);
glEnableVertexAttribArray(bd->AttribLocationVtxPos);
glEnableVertexAttribArray(bd->AttribLocationVtxUV);
glEnableVertexAttribArray(bd->AttribLocationVtxColor);
glVertexAttribPointer(bd->AttribLocationVtxPos, 2, GL_FLOAT, GL_FALSE, sizeof(ImDrawVert), (GLvoid*)IM_OFFSETOF(ImDrawVert, pos));
glVertexAttribPointer(bd->AttribLocationVtxUV, 2, GL_FLOAT, GL_FALSE, sizeof(ImDrawVert), (GLvoid*)IM_OFFSETOF(ImDrawVert, uv));
glVertexAttribPointer(bd->AttribLocationVtxColor, 4, GL_UNSIGNED_BYTE, GL_TRUE, sizeof(ImDrawVert), (GLvoid*)IM_OFFSETOF(ImDrawVert, col));
}
// OpenGL3 Render function.
// Note that this implementation is little overcomplicated because we are saving/setting up/restoring every OpenGL state explicitly.
// This is in order to be able to run within an OpenGL engine that doesn't do so.
void ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
{
// Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates)
int fb_width = (int)(draw_data->DisplaySize.x * draw_data->FramebufferScale.x);
int fb_height = (int)(draw_data->DisplaySize.y * draw_data->FramebufferScale.y);
if (fb_width <= 0 || fb_height <= 0)
return;
ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
// Backup GL state
GLenum last_active_texture; glGetIntegerv(GL_ACTIVE_TEXTURE, (GLint*)&last_active_texture);
glActiveTexture(GL_TEXTURE0);
GLuint last_program; glGetIntegerv(GL_CURRENT_PROGRAM, (GLint*)&last_program);
GLuint last_texture; glGetIntegerv(GL_TEXTURE_BINDING_2D, (GLint*)&last_texture);
#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_SAMPLER
GLuint last_sampler; if (bd->GlVersion >= 330) { glGetIntegerv(GL_SAMPLER_BINDING, (GLint*)&last_sampler); } else { last_sampler = 0; }
#endif
GLuint last_array_buffer; glGetIntegerv(GL_ARRAY_BUFFER_BINDING, (GLint*)&last_array_buffer);
#ifdef IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
GLuint last_vertex_array_object; glGetIntegerv(GL_VERTEX_ARRAY_BINDING, (GLint*)&last_vertex_array_object);
#endif
#ifdef IMGUI_IMPL_HAS_POLYGON_MODE
GLint last_polygon_mode[2]; glGetIntegerv(GL_POLYGON_MODE, last_polygon_mode);
#endif
GLint last_viewport[4]; glGetIntegerv(GL_VIEWPORT, last_viewport);
GLint last_scissor_box[4]; glGetIntegerv(GL_SCISSOR_BOX, last_scissor_box);
GLenum last_blend_src_rgb; glGetIntegerv(GL_BLEND_SRC_RGB, (GLint*)&last_blend_src_rgb);
GLenum last_blend_dst_rgb; glGetIntegerv(GL_BLEND_DST_RGB, (GLint*)&last_blend_dst_rgb);
GLenum last_blend_src_alpha; glGetIntegerv(GL_BLEND_SRC_ALPHA, (GLint*)&last_blend_src_alpha);
GLenum last_blend_dst_alpha; glGetIntegerv(GL_BLEND_DST_ALPHA, (GLint*)&last_blend_dst_alpha);
GLenum last_blend_equation_rgb; glGetIntegerv(GL_BLEND_EQUATION_RGB, (GLint*)&last_blend_equation_rgb);
GLenum last_blend_equation_alpha; glGetIntegerv(GL_BLEND_EQUATION_ALPHA, (GLint*)&last_blend_equation_alpha);
GLboolean last_enable_blend = glIsEnabled(GL_BLEND);
GLboolean last_enable_cull_face = glIsEnabled(GL_CULL_FACE);
GLboolean last_enable_depth_test = glIsEnabled(GL_DEPTH_TEST);
GLboolean last_enable_stencil_test = glIsEnabled(GL_STENCIL_TEST);
GLboolean last_enable_scissor_test = glIsEnabled(GL_SCISSOR_TEST);
#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_PRIMITIVE_RESTART
GLboolean last_enable_primitive_restart = (bd->GlVersion >= 310) ? glIsEnabled(GL_PRIMITIVE_RESTART) : GL_FALSE;
#endif
// Setup desired GL state
// Recreate the VAO every time (this is to easily allow multiple GL contexts to be rendered to. VAO are not shared among GL contexts)
// The renderer would actually work without any VAO bound, but then our VertexAttrib calls would overwrite the default one currently bound.
GLuint vertex_array_object = 0;
#ifdef IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
glGenVertexArrays(1, &vertex_array_object);
#endif
ImGui_ImplOpenGL3_SetupRenderState(draw_data, fb_width, fb_height, vertex_array_object);
// Will project scissor/clipping rectangles into framebuffer space
ImVec2 clip_off = draw_data->DisplayPos; // (0,0) unless using multi-viewports
ImVec2 clip_scale = draw_data->FramebufferScale; // (1,1) unless using retina display which are often (2,2)
// Render command lists
for (int n = 0; n < draw_data->CmdListsCount; n++)
{
const ImDrawList* cmd_list = draw_data->CmdLists[n];
// Upload vertex/index buffers
glBufferData(GL_ARRAY_BUFFER, (GLsizeiptr)cmd_list->VtxBuffer.Size * (int)sizeof(ImDrawVert), (const GLvoid*)cmd_list->VtxBuffer.Data, GL_STREAM_DRAW);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, (GLsizeiptr)cmd_list->IdxBuffer.Size * (int)sizeof(ImDrawIdx), (const GLvoid*)cmd_list->IdxBuffer.Data, GL_STREAM_DRAW);
for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
{
const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i];
if (pcmd->UserCallback != NULL)
{
// User callback, registered via ImDrawList::AddCallback()
// (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
ImGui_ImplOpenGL3_SetupRenderState(draw_data, fb_width, fb_height, vertex_array_object);
else
pcmd->UserCallback(cmd_list, pcmd);
}
else
{
// Project scissor/clipping rectangles into framebuffer space
ImVec2 clip_min((pcmd->ClipRect.x - clip_off.x) * clip_scale.x, (pcmd->ClipRect.y - clip_off.y) * clip_scale.y);
ImVec2 clip_max((pcmd->ClipRect.z - clip_off.x) * clip_scale.x, (pcmd->ClipRect.w - clip_off.y) * clip_scale.y);
if (clip_max.x < clip_min.x || clip_max.y < clip_min.y)
continue;
// Apply scissor/clipping rectangle (Y is inverted in OpenGL)
glScissor((int)clip_min.x, (int)(fb_height - clip_max.y), (int)(clip_max.x - clip_min.x), (int)(clip_max.y - clip_min.y));
// Bind texture, Draw
glBindTexture(GL_TEXTURE_2D, (GLuint)(intptr_t)pcmd->GetTexID());
#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_VTX_OFFSET
if (bd->GlVersion >= 320)
glDrawElementsBaseVertex(GL_TRIANGLES, (GLsizei)pcmd->ElemCount, sizeof(ImDrawIdx) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT, (void*)(intptr_t)(pcmd->IdxOffset * sizeof(ImDrawIdx)), (GLint)pcmd->VtxOffset);
else
#endif
glDrawElements(GL_TRIANGLES, (GLsizei)pcmd->ElemCount, sizeof(ImDrawIdx) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT, (void*)(intptr_t)(pcmd->IdxOffset * sizeof(ImDrawIdx)));
}
}
}
// Destroy the temporary VAO
#ifdef IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
glDeleteVertexArrays(1, &vertex_array_object);
#endif
// Restore modified GL state
glUseProgram(last_program);
glBindTexture(GL_TEXTURE_2D, last_texture);
#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_SAMPLER
if (bd->GlVersion >= 330)
glBindSampler(0, last_sampler);
#endif
glActiveTexture(last_active_texture);
#ifdef IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
glBindVertexArray(last_vertex_array_object);
#endif
glBindBuffer(GL_ARRAY_BUFFER, last_array_buffer);
glBlendEquationSeparate(last_blend_equation_rgb, last_blend_equation_alpha);
glBlendFuncSeparate(last_blend_src_rgb, last_blend_dst_rgb, last_blend_src_alpha, last_blend_dst_alpha);
if (last_enable_blend) glEnable(GL_BLEND); else glDisable(GL_BLEND);
if (last_enable_cull_face) glEnable(GL_CULL_FACE); else glDisable(GL_CULL_FACE);
if (last_enable_depth_test) glEnable(GL_DEPTH_TEST); else glDisable(GL_DEPTH_TEST);
if (last_enable_stencil_test) glEnable(GL_STENCIL_TEST); else glDisable(GL_STENCIL_TEST);
if (last_enable_scissor_test) glEnable(GL_SCISSOR_TEST); else glDisable(GL_SCISSOR_TEST);
#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_PRIMITIVE_RESTART
if (bd->GlVersion >= 310) { if (last_enable_primitive_restart) glEnable(GL_PRIMITIVE_RESTART); else glDisable(GL_PRIMITIVE_RESTART); }
#endif
#ifdef IMGUI_IMPL_HAS_POLYGON_MODE
glPolygonMode(GL_FRONT_AND_BACK, (GLenum)last_polygon_mode[0]);
#endif
glViewport(last_viewport[0], last_viewport[1], (GLsizei)last_viewport[2], (GLsizei)last_viewport[3]);
glScissor(last_scissor_box[0], last_scissor_box[1], (GLsizei)last_scissor_box[2], (GLsizei)last_scissor_box[3]);
(void)bd; // Not all compilation paths use this
}
bool ImGui_ImplOpenGL3_CreateFontsTexture()
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
// Build texture atlas
unsigned char* pixels;
int width, height;
io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height); // Load as RGBA 32-bit (75% of the memory is wasted, but default font is so small) because it is more likely to be compatible with user's existing shaders. If your ImTextureId represent a higher-level concept than just a GL texture id, consider calling GetTexDataAsAlpha8() instead to save on GPU memory.
// Upload texture to graphics system
GLint last_texture;
glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
glGenTextures(1, &bd->FontTexture);
glBindTexture(GL_TEXTURE_2D, bd->FontTexture);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
#ifdef GL_UNPACK_ROW_LENGTH // Not on WebGL/ES
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
#endif
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
// Store our identifier
io.Fonts->SetTexID((ImTextureID)(intptr_t)bd->FontTexture);
// Restore state
glBindTexture(GL_TEXTURE_2D, last_texture);
return true;
}
void ImGui_ImplOpenGL3_DestroyFontsTexture()
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
if (bd->FontTexture)
{
glDeleteTextures(1, &bd->FontTexture);
io.Fonts->SetTexID(0);
bd->FontTexture = 0;
}
}
// If you get an error please report on github. You may try different GL context version or GLSL version. See GL<>GLSL version table at the top of this file.
static bool CheckShader(GLuint handle, const char* desc)
{
ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
GLint status = 0, log_length = 0;
glGetShaderiv(handle, GL_COMPILE_STATUS, &status);
glGetShaderiv(handle, GL_INFO_LOG_LENGTH, &log_length);
if ((GLboolean)status == GL_FALSE)
fprintf(stderr, "ERROR: ImGui_ImplOpenGL3_CreateDeviceObjects: failed to compile %s! With GLSL: %s\n", desc, bd->GlslVersionString);
if (log_length > 1)
{
ImVector<char> buf;
buf.resize((int)(log_length + 1));
glGetShaderInfoLog(handle, log_length, NULL, (GLchar*)buf.begin());
fprintf(stderr, "%s\n", buf.begin());
}
return (GLboolean)status == GL_TRUE;
}
// If you get an error please report on GitHub. You may try different GL context version or GLSL version.
static bool CheckProgram(GLuint handle, const char* desc)
{
ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
GLint status = 0, log_length = 0;
glGetProgramiv(handle, GL_LINK_STATUS, &status);
glGetProgramiv(handle, GL_INFO_LOG_LENGTH, &log_length);
if ((GLboolean)status == GL_FALSE)
fprintf(stderr, "ERROR: ImGui_ImplOpenGL3_CreateDeviceObjects: failed to link %s! With GLSL %s\n", desc, bd->GlslVersionString);
if (log_length > 1)
{
ImVector<char> buf;
buf.resize((int)(log_length + 1));
glGetProgramInfoLog(handle, log_length, NULL, (GLchar*)buf.begin());
fprintf(stderr, "%s\n", buf.begin());
}
return (GLboolean)status == GL_TRUE;
}
bool ImGui_ImplOpenGL3_CreateDeviceObjects()
{
ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
// Backup GL state
GLint last_texture, last_array_buffer;
glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &last_array_buffer);
#ifdef IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
GLint last_vertex_array;
glGetIntegerv(GL_VERTEX_ARRAY_BINDING, &last_vertex_array);
#endif
// Parse GLSL version string
int glsl_version = 130;
sscanf(bd->GlslVersionString, "#version %d", &glsl_version);
const GLchar* vertex_shader_glsl_120 =
"uniform mat4 ProjMtx;\n"
"attribute vec2 Position;\n"
"attribute vec2 UV;\n"
"attribute vec4 Color;\n"
"varying vec2 Frag_UV;\n"
"varying vec4 Frag_Color;\n"
"void main()\n"
"{\n"
" Frag_UV = UV;\n"
" Frag_Color = Color;\n"
" gl_Position = ProjMtx * vec4(Position.xy,0,1);\n"
"}\n";
const GLchar* vertex_shader_glsl_130 =
"uniform mat4 ProjMtx;\n"
"in vec2 Position;\n"
"in vec2 UV;\n"
"in vec4 Color;\n"
"out vec2 Frag_UV;\n"
"out vec4 Frag_Color;\n"
"void main()\n"
"{\n"
" Frag_UV = UV;\n"
" Frag_Color = Color;\n"
" gl_Position = ProjMtx * vec4(Position.xy,0,1);\n"
"}\n";
const GLchar* vertex_shader_glsl_300_es =
"precision highp float;\n"
"layout (location = 0) in vec2 Position;\n"
"layout (location = 1) in vec2 UV;\n"
"layout (location = 2) in vec4 Color;\n"
"uniform mat4 ProjMtx;\n"
"out vec2 Frag_UV;\n"
"out vec4 Frag_Color;\n"
"void main()\n"
"{\n"
" Frag_UV = UV;\n"
" Frag_Color = Color;\n"
" gl_Position = ProjMtx * vec4(Position.xy,0,1);\n"
"}\n";
const GLchar* vertex_shader_glsl_410_core =
"layout (location = 0) in vec2 Position;\n"
"layout (location = 1) in vec2 UV;\n"
"layout (location = 2) in vec4 Color;\n"
"uniform mat4 ProjMtx;\n"
"out vec2 Frag_UV;\n"
"out vec4 Frag_Color;\n"
"void main()\n"
"{\n"
" Frag_UV = UV;\n"
" Frag_Color = Color;\n"
" gl_Position = ProjMtx * vec4(Position.xy,0,1);\n"
"}\n";
const GLchar* fragment_shader_glsl_120 =
"#ifdef GL_ES\n"
" precision mediump float;\n"
"#endif\n"
"uniform sampler2D Texture;\n"
"varying vec2 Frag_UV;\n"
"varying vec4 Frag_Color;\n"
"void main()\n"
"{\n"
" gl_FragColor = Frag_Color * texture2D(Texture, Frag_UV.st);\n"
"}\n";
const GLchar* fragment_shader_glsl_130 =
"uniform sampler2D Texture;\n"
"in vec2 Frag_UV;\n"
"in vec4 Frag_Color;\n"
"out vec4 Out_Color;\n"
"void main()\n"
"{\n"
" Out_Color = Frag_Color * texture(Texture, Frag_UV.st);\n"
"}\n";
const GLchar* fragment_shader_glsl_300_es =
"precision mediump float;\n"
"uniform sampler2D Texture;\n"
"in vec2 Frag_UV;\n"
"in vec4 Frag_Color;\n"
"layout (location = 0) out vec4 Out_Color;\n"
"void main()\n"
"{\n"
" Out_Color = Frag_Color * texture(Texture, Frag_UV.st);\n"
"}\n";
const GLchar* fragment_shader_glsl_410_core =
"in vec2 Frag_UV;\n"
"in vec4 Frag_Color;\n"
"uniform sampler2D Texture;\n"
"layout (location = 0) out vec4 Out_Color;\n"
"void main()\n"
"{\n"
" Out_Color = Frag_Color * texture(Texture, Frag_UV.st);\n"
"}\n";
// Select shaders matching our GLSL versions
const GLchar* vertex_shader = NULL;
const GLchar* fragment_shader = NULL;
if (glsl_version < 130)
{
vertex_shader = vertex_shader_glsl_120;
fragment_shader = fragment_shader_glsl_120;
}
else if (glsl_version >= 410)
{
vertex_shader = vertex_shader_glsl_410_core;
fragment_shader = fragment_shader_glsl_410_core;
}
else if (glsl_version == 300)
{
vertex_shader = vertex_shader_glsl_300_es;
fragment_shader = fragment_shader_glsl_300_es;
}
else
{
vertex_shader = vertex_shader_glsl_130;
fragment_shader = fragment_shader_glsl_130;
}
// Create shaders
const GLchar* vertex_shader_with_version[2] = { bd->GlslVersionString, vertex_shader };
GLuint vert_handle = glCreateShader(GL_VERTEX_SHADER);
glShaderSource(vert_handle, 2, vertex_shader_with_version, NULL);
glCompileShader(vert_handle);
CheckShader(vert_handle, "vertex shader");
const GLchar* fragment_shader_with_version[2] = { bd->GlslVersionString, fragment_shader };
GLuint frag_handle = glCreateShader(GL_FRAGMENT_SHADER);
glShaderSource(frag_handle, 2, fragment_shader_with_version, NULL);
glCompileShader(frag_handle);
CheckShader(frag_handle, "fragment shader");
// Link
bd->ShaderHandle = glCreateProgram();
glAttachShader(bd->ShaderHandle, vert_handle);
glAttachShader(bd->ShaderHandle, frag_handle);
glLinkProgram(bd->ShaderHandle);
CheckProgram(bd->ShaderHandle, "shader program");
glDetachShader(bd->ShaderHandle, vert_handle);
glDetachShader(bd->ShaderHandle, frag_handle);
glDeleteShader(vert_handle);
glDeleteShader(frag_handle);
bd->AttribLocationTex = glGetUniformLocation(bd->ShaderHandle, "Texture");
bd->AttribLocationProjMtx = glGetUniformLocation(bd->ShaderHandle, "ProjMtx");
bd->AttribLocationVtxPos = (GLuint)glGetAttribLocation(bd->ShaderHandle, "Position");
bd->AttribLocationVtxUV = (GLuint)glGetAttribLocation(bd->ShaderHandle, "UV");
bd->AttribLocationVtxColor = (GLuint)glGetAttribLocation(bd->ShaderHandle, "Color");
// Create buffers
glGenBuffers(1, &bd->VboHandle);
glGenBuffers(1, &bd->ElementsHandle);
ImGui_ImplOpenGL3_CreateFontsTexture();
// Restore modified GL state
glBindTexture(GL_TEXTURE_2D, last_texture);
glBindBuffer(GL_ARRAY_BUFFER, last_array_buffer);
#ifdef IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
glBindVertexArray(last_vertex_array);
#endif
return true;
}
void ImGui_ImplOpenGL3_DestroyDeviceObjects()
{
ImGui_ImplOpenGL3_Data* bd = ImGui_ImplOpenGL3_GetBackendData();
if (bd->VboHandle) { glDeleteBuffers(1, &bd->VboHandle); bd->VboHandle = 0; }
if (bd->ElementsHandle) { glDeleteBuffers(1, &bd->ElementsHandle); bd->ElementsHandle = 0; }
if (bd->ShaderHandle) { glDeleteProgram(bd->ShaderHandle); bd->ShaderHandle = 0; }
ImGui_ImplOpenGL3_DestroyFontsTexture();
}
//--------------------------------------------------------------------------------------------------------
// MULTI-VIEWPORT / PLATFORM INTERFACE SUPPORT
// This is an _advanced_ and _optional_ feature, allowing the backend to create and handle multiple viewports simultaneously.
// If you are new to dear imgui or creating a new binding for dear imgui, it is recommended that you completely ignore this section first..
//--------------------------------------------------------------------------------------------------------
static void ImGui_ImplOpenGL3_RenderWindow(ImGuiViewport* viewport, void*)
{
if (!(viewport->Flags & ImGuiViewportFlags_NoRendererClear))
{
ImVec4 clear_color = ImVec4(0.0f, 0.0f, 0.0f, 1.0f);
glClearColor(clear_color.x, clear_color.y, clear_color.z, clear_color.w);
glClear(GL_COLOR_BUFFER_BIT);
}
ImGui_ImplOpenGL3_RenderDrawData(viewport->DrawData);
}
static void ImGui_ImplOpenGL3_InitPlatformInterface()
{
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
platform_io.Renderer_RenderWindow = ImGui_ImplOpenGL3_RenderWindow;
}
static void ImGui_ImplOpenGL3_ShutdownPlatformInterface()
{
ImGui::DestroyPlatformWindows();
}

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// dear imgui: Renderer Backend for modern OpenGL with shaders / programmatic pipeline
// - Desktop GL: 2.x 3.x 4.x
// - Embedded GL: ES 2.0 (WebGL 1.0), ES 3.0 (WebGL 2.0)
// This needs to be used along with a Platform Backend (e.g. GLFW, SDL, Win32, custom..)
// Implemented features:
// [X] Renderer: User texture binding. Use 'GLuint' OpenGL texture identifier as void*/ImTextureID. Read the FAQ about ImTextureID!
// [X] Renderer: Multi-viewport support. Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
// [x] Renderer: Desktop GL only: Support for large meshes (64k+ vertices) with 16-bit indices.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// About GLSL version:
// The 'glsl_version' initialization parameter should be NULL (default) or a "#version XXX" string.
// On computer platform the GLSL version default to "#version 130". On OpenGL ES 3 platform it defaults to "#version 300 es"
// Only override if your GL version doesn't handle this GLSL version. See GLSL version table at the top of imgui_impl_opengl3.cpp.
#pragma once
#include "imgui.h" // IMGUI_IMPL_API
// Backend API
IMGUI_IMPL_API bool ImGui_ImplOpenGL3_Init(const char* glsl_version = NULL);
IMGUI_IMPL_API void ImGui_ImplOpenGL3_Shutdown();
IMGUI_IMPL_API void ImGui_ImplOpenGL3_NewFrame();
IMGUI_IMPL_API void ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data);
// (Optional) Called by Init/NewFrame/Shutdown
IMGUI_IMPL_API bool ImGui_ImplOpenGL3_CreateFontsTexture();
IMGUI_IMPL_API void ImGui_ImplOpenGL3_DestroyFontsTexture();
IMGUI_IMPL_API bool ImGui_ImplOpenGL3_CreateDeviceObjects();
IMGUI_IMPL_API void ImGui_ImplOpenGL3_DestroyDeviceObjects();
// Specific OpenGL ES versions
//#define IMGUI_IMPL_OPENGL_ES2 // Auto-detected on Emscripten
//#define IMGUI_IMPL_OPENGL_ES3 // Auto-detected on iOS/Android
// You can explicitly select GLES2 or GLES3 API by using one of the '#define IMGUI_IMPL_OPENGL_LOADER_XXX' in imconfig.h or compiler command-line.
#if !defined(IMGUI_IMPL_OPENGL_ES2) \
&& !defined(IMGUI_IMPL_OPENGL_ES3)
// Try to detect GLES on matching platforms
#if defined(__APPLE__)
#include <TargetConditionals.h>
#endif
#if (defined(__APPLE__) && (TARGET_OS_IOS || TARGET_OS_TV)) || (defined(__ANDROID__))
#define IMGUI_IMPL_OPENGL_ES3 // iOS, Android -> GL ES 3, "#version 300 es"
#elif defined(__EMSCRIPTEN__)
#define IMGUI_IMPL_OPENGL_ES2 // Emscripten -> GL ES 2, "#version 100"
#else
// Otherwise imgui_impl_opengl3_loader.h will be used.
#endif
#endif

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//-----------------------------------------------------------------------------
// About imgui_impl_opengl3_loader.h:
//
// We embed our own OpenGL loader to not require user to provide their own or to have to use ours,
// which proved to be endless problems for users.
// Our loader is custom-generated, based on gl3w but automatically filtered to only include
// enums/functions that we use in our imgui_impl_opengl3.cpp source file in order to be small.
//
// YOU SHOULD NOT NEED TO INCLUDE/USE THIS DIRECTLY. THIS IS USED BY imgui_impl_opengl3.cpp ONLY.
// THE REST OF YOUR APP SHOULD USE A DIFFERENT GL LOADER: ANY GL LOADER OF YOUR CHOICE.
//
// Regenerate with:
// python gl3w_gen.py --output ../imgui/backends/imgui_impl_opengl3_loader.h --ref ../imgui/backends/imgui_impl_opengl3.cpp ./extra_symbols.txt
//
// More info:
// https://github.com/dearimgui/gl3w_stripped
// https://github.com/ocornut/imgui/issues/4445
//-----------------------------------------------------------------------------
/*
* This file was generated with gl3w_gen.py, part of imgl3w
* (hosted at https://github.com/dearimgui/gl3w_stripped)
*
* This is free and unencumbered software released into the public domain.
*
* Anyone is free to copy, modify, publish, use, compile, sell, or
* distribute this software, either in source code form or as a compiled
* binary, for any purpose, commercial or non-commercial, and by any
* means.
*
* In jurisdictions that recognize copyright laws, the author or authors
* of this software dedicate any and all copyright interest in the
* software to the public domain. We make this dedication for the benefit
* of the public at large and to the detriment of our heirs and
* successors. We intend this dedication to be an overt act of
* relinquishment in perpetuity of all present and future rights to this
* software under copyright law.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef __gl3w_h_
#define __gl3w_h_
// Adapted from KHR/khrplatform.h to avoid including entire file.
#ifndef __khrplatform_h_
typedef float khronos_float_t;
typedef signed char khronos_int8_t;
typedef unsigned char khronos_uint8_t;
typedef signed short int khronos_int16_t;
typedef unsigned short int khronos_uint16_t;
#ifdef _WIN64
typedef signed long long int khronos_intptr_t;
typedef signed long long int khronos_ssize_t;
#else
typedef signed long int khronos_intptr_t;
typedef signed long int khronos_ssize_t;
#endif
#if defined(_MSC_VER) && !defined(__clang__)
typedef signed __int64 khronos_int64_t;
typedef unsigned __int64 khronos_uint64_t;
#elif (defined(__clang__) || defined(__GNUC__)) && (__cplusplus < 201100)
#include <stdint.h>
typedef int64_t khronos_int64_t;
typedef uint64_t khronos_uint64_t;
#else
typedef signed long long khronos_int64_t;
typedef unsigned long long khronos_uint64_t;
#endif
#endif // __khrplatform_h_
#ifndef __gl_glcorearb_h_
#define __gl_glcorearb_h_ 1
#ifdef __cplusplus
extern "C" {
#endif
/*
** Copyright 2013-2020 The Khronos Group Inc.
** SPDX-License-Identifier: MIT
**
** This header is generated from the Khronos OpenGL / OpenGL ES XML
** API Registry. The current version of the Registry, generator scripts
** used to make the header, and the header can be found at
** https://github.com/KhronosGroup/OpenGL-Registry
*/
#if defined(_WIN32) && !defined(APIENTRY) && !defined(__CYGWIN__) && !defined(__SCITECH_SNAP__)
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN 1
#endif
#include <windows.h>
#endif
#ifndef APIENTRY
#define APIENTRY
#endif
#ifndef APIENTRYP
#define APIENTRYP APIENTRY *
#endif
#ifndef GLAPI
#define GLAPI extern
#endif
/* glcorearb.h is for use with OpenGL core profile implementations.
** It should should be placed in the same directory as gl.h and
** included as <GL/glcorearb.h>.
**
** glcorearb.h includes only APIs in the latest OpenGL core profile
** implementation together with APIs in newer ARB extensions which
** can be supported by the core profile. It does not, and never will
** include functionality removed from the core profile, such as
** fixed-function vertex and fragment processing.
**
** Do not #include both <GL/glcorearb.h> and either of <GL/gl.h> or
** <GL/glext.h> in the same source file.
*/
/* Generated C header for:
* API: gl
* Profile: core
* Versions considered: .*
* Versions emitted: .*
* Default extensions included: glcore
* Additional extensions included: _nomatch_^
* Extensions removed: _nomatch_^
*/
#ifndef GL_VERSION_1_0
typedef void GLvoid;
typedef unsigned int GLenum;
typedef khronos_float_t GLfloat;
typedef int GLint;
typedef int GLsizei;
typedef unsigned int GLbitfield;
typedef double GLdouble;
typedef unsigned int GLuint;
typedef unsigned char GLboolean;
typedef khronos_uint8_t GLubyte;
#define GL_COLOR_BUFFER_BIT 0x00004000
#define GL_FALSE 0
#define GL_TRUE 1
#define GL_TRIANGLES 0x0004
#define GL_ONE 1
#define GL_SRC_ALPHA 0x0302
#define GL_ONE_MINUS_SRC_ALPHA 0x0303
#define GL_FRONT_AND_BACK 0x0408
#define GL_POLYGON_MODE 0x0B40
#define GL_CULL_FACE 0x0B44
#define GL_DEPTH_TEST 0x0B71
#define GL_STENCIL_TEST 0x0B90
#define GL_VIEWPORT 0x0BA2
#define GL_BLEND 0x0BE2
#define GL_SCISSOR_BOX 0x0C10
#define GL_SCISSOR_TEST 0x0C11
#define GL_UNPACK_ROW_LENGTH 0x0CF2
#define GL_PACK_ALIGNMENT 0x0D05
#define GL_TEXTURE_2D 0x0DE1
#define GL_UNSIGNED_BYTE 0x1401
#define GL_UNSIGNED_SHORT 0x1403
#define GL_UNSIGNED_INT 0x1405
#define GL_FLOAT 0x1406
#define GL_RGBA 0x1908
#define GL_FILL 0x1B02
#define GL_VERSION 0x1F02
#define GL_EXTENSIONS 0x1F03
#define GL_LINEAR 0x2601
#define GL_TEXTURE_MAG_FILTER 0x2800
#define GL_TEXTURE_MIN_FILTER 0x2801
typedef void (APIENTRYP PFNGLPOLYGONMODEPROC) (GLenum face, GLenum mode);
typedef void (APIENTRYP PFNGLSCISSORPROC) (GLint x, GLint y, GLsizei width, GLsizei height);
typedef void (APIENTRYP PFNGLTEXPARAMETERIPROC) (GLenum target, GLenum pname, GLint param);
typedef void (APIENTRYP PFNGLTEXIMAGE2DPROC) (GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void *pixels);
typedef void (APIENTRYP PFNGLCLEARPROC) (GLbitfield mask);
typedef void (APIENTRYP PFNGLCLEARCOLORPROC) (GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
typedef void (APIENTRYP PFNGLDISABLEPROC) (GLenum cap);
typedef void (APIENTRYP PFNGLENABLEPROC) (GLenum cap);
typedef void (APIENTRYP PFNGLPIXELSTOREIPROC) (GLenum pname, GLint param);
typedef void (APIENTRYP PFNGLREADPIXELSPROC) (GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void *pixels);
typedef GLenum (APIENTRYP PFNGLGETERRORPROC) (void);
typedef void (APIENTRYP PFNGLGETINTEGERVPROC) (GLenum pname, GLint *data);
typedef const GLubyte *(APIENTRYP PFNGLGETSTRINGPROC) (GLenum name);
typedef GLboolean (APIENTRYP PFNGLISENABLEDPROC) (GLenum cap);
typedef void (APIENTRYP PFNGLVIEWPORTPROC) (GLint x, GLint y, GLsizei width, GLsizei height);
#ifdef GL_GLEXT_PROTOTYPES
GLAPI void APIENTRY glPolygonMode (GLenum face, GLenum mode);
GLAPI void APIENTRY glScissor (GLint x, GLint y, GLsizei width, GLsizei height);
GLAPI void APIENTRY glTexParameteri (GLenum target, GLenum pname, GLint param);
GLAPI void APIENTRY glTexImage2D (GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void *pixels);
GLAPI void APIENTRY glClear (GLbitfield mask);
GLAPI void APIENTRY glClearColor (GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
GLAPI void APIENTRY glDisable (GLenum cap);
GLAPI void APIENTRY glEnable (GLenum cap);
GLAPI void APIENTRY glPixelStorei (GLenum pname, GLint param);
GLAPI void APIENTRY glReadPixels (GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void *pixels);
GLAPI GLenum APIENTRY glGetError (void);
GLAPI void APIENTRY glGetIntegerv (GLenum pname, GLint *data);
GLAPI const GLubyte *APIENTRY glGetString (GLenum name);
GLAPI GLboolean APIENTRY glIsEnabled (GLenum cap);
GLAPI void APIENTRY glViewport (GLint x, GLint y, GLsizei width, GLsizei height);
#endif
#endif /* GL_VERSION_1_0 */
#ifndef GL_VERSION_1_1
typedef khronos_float_t GLclampf;
typedef double GLclampd;
#define GL_TEXTURE_BINDING_2D 0x8069
typedef void (APIENTRYP PFNGLDRAWELEMENTSPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices);
typedef void (APIENTRYP PFNGLBINDTEXTUREPROC) (GLenum target, GLuint texture);
typedef void (APIENTRYP PFNGLDELETETEXTURESPROC) (GLsizei n, const GLuint *textures);
typedef void (APIENTRYP PFNGLGENTEXTURESPROC) (GLsizei n, GLuint *textures);
#ifdef GL_GLEXT_PROTOTYPES
GLAPI void APIENTRY glDrawElements (GLenum mode, GLsizei count, GLenum type, const void *indices);
GLAPI void APIENTRY glBindTexture (GLenum target, GLuint texture);
GLAPI void APIENTRY glDeleteTextures (GLsizei n, const GLuint *textures);
GLAPI void APIENTRY glGenTextures (GLsizei n, GLuint *textures);
#endif
#endif /* GL_VERSION_1_1 */
#ifndef GL_VERSION_1_3
#define GL_TEXTURE0 0x84C0
#define GL_ACTIVE_TEXTURE 0x84E0
typedef void (APIENTRYP PFNGLACTIVETEXTUREPROC) (GLenum texture);
#ifdef GL_GLEXT_PROTOTYPES
GLAPI void APIENTRY glActiveTexture (GLenum texture);
#endif
#endif /* GL_VERSION_1_3 */
#ifndef GL_VERSION_1_4
#define GL_BLEND_DST_RGB 0x80C8
#define GL_BLEND_SRC_RGB 0x80C9
#define GL_BLEND_DST_ALPHA 0x80CA
#define GL_BLEND_SRC_ALPHA 0x80CB
#define GL_FUNC_ADD 0x8006
typedef void (APIENTRYP PFNGLBLENDFUNCSEPARATEPROC) (GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorAlpha, GLenum dfactorAlpha);
typedef void (APIENTRYP PFNGLBLENDEQUATIONPROC) (GLenum mode);
#ifdef GL_GLEXT_PROTOTYPES
GLAPI void APIENTRY glBlendFuncSeparate (GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorAlpha, GLenum dfactorAlpha);
GLAPI void APIENTRY glBlendEquation (GLenum mode);
#endif
#endif /* GL_VERSION_1_4 */
#ifndef GL_VERSION_1_5
typedef khronos_ssize_t GLsizeiptr;
typedef khronos_intptr_t GLintptr;
#define GL_ARRAY_BUFFER 0x8892
#define GL_ELEMENT_ARRAY_BUFFER 0x8893
#define GL_ARRAY_BUFFER_BINDING 0x8894
#define GL_STREAM_DRAW 0x88E0
typedef void (APIENTRYP PFNGLBINDBUFFERPROC) (GLenum target, GLuint buffer);
typedef void (APIENTRYP PFNGLDELETEBUFFERSPROC) (GLsizei n, const GLuint *buffers);
typedef void (APIENTRYP PFNGLGENBUFFERSPROC) (GLsizei n, GLuint *buffers);
typedef void (APIENTRYP PFNGLBUFFERDATAPROC) (GLenum target, GLsizeiptr size, const void *data, GLenum usage);
#ifdef GL_GLEXT_PROTOTYPES
GLAPI void APIENTRY glBindBuffer (GLenum target, GLuint buffer);
GLAPI void APIENTRY glDeleteBuffers (GLsizei n, const GLuint *buffers);
GLAPI void APIENTRY glGenBuffers (GLsizei n, GLuint *buffers);
GLAPI void APIENTRY glBufferData (GLenum target, GLsizeiptr size, const void *data, GLenum usage);
#endif
#endif /* GL_VERSION_1_5 */
#ifndef GL_VERSION_2_0
typedef char GLchar;
typedef khronos_int16_t GLshort;
typedef khronos_int8_t GLbyte;
typedef khronos_uint16_t GLushort;
#define GL_BLEND_EQUATION_RGB 0x8009
#define GL_BLEND_EQUATION_ALPHA 0x883D
#define GL_FRAGMENT_SHADER 0x8B30
#define GL_VERTEX_SHADER 0x8B31
#define GL_COMPILE_STATUS 0x8B81
#define GL_LINK_STATUS 0x8B82
#define GL_INFO_LOG_LENGTH 0x8B84
#define GL_CURRENT_PROGRAM 0x8B8D
#define GL_UPPER_LEFT 0x8CA2
typedef void (APIENTRYP PFNGLBLENDEQUATIONSEPARATEPROC) (GLenum modeRGB, GLenum modeAlpha);
typedef void (APIENTRYP PFNGLATTACHSHADERPROC) (GLuint program, GLuint shader);
typedef void (APIENTRYP PFNGLCOMPILESHADERPROC) (GLuint shader);
typedef GLuint (APIENTRYP PFNGLCREATEPROGRAMPROC) (void);
typedef GLuint (APIENTRYP PFNGLCREATESHADERPROC) (GLenum type);
typedef void (APIENTRYP PFNGLDELETEPROGRAMPROC) (GLuint program);
typedef void (APIENTRYP PFNGLDELETESHADERPROC) (GLuint shader);
typedef void (APIENTRYP PFNGLDETACHSHADERPROC) (GLuint program, GLuint shader);
typedef void (APIENTRYP PFNGLENABLEVERTEXATTRIBARRAYPROC) (GLuint index);
typedef GLint (APIENTRYP PFNGLGETATTRIBLOCATIONPROC) (GLuint program, const GLchar *name);
typedef void (APIENTRYP PFNGLGETPROGRAMIVPROC) (GLuint program, GLenum pname, GLint *params);
typedef void (APIENTRYP PFNGLGETPROGRAMINFOLOGPROC) (GLuint program, GLsizei bufSize, GLsizei *length, GLchar *infoLog);
typedef void (APIENTRYP PFNGLGETSHADERIVPROC) (GLuint shader, GLenum pname, GLint *params);
typedef void (APIENTRYP PFNGLGETSHADERINFOLOGPROC) (GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *infoLog);
typedef GLint (APIENTRYP PFNGLGETUNIFORMLOCATIONPROC) (GLuint program, const GLchar *name);
typedef void (APIENTRYP PFNGLLINKPROGRAMPROC) (GLuint program);
typedef void (APIENTRYP PFNGLSHADERSOURCEPROC) (GLuint shader, GLsizei count, const GLchar *const*string, const GLint *length);
typedef void (APIENTRYP PFNGLUSEPROGRAMPROC) (GLuint program);
typedef void (APIENTRYP PFNGLUNIFORM1IPROC) (GLint location, GLint v0);
typedef void (APIENTRYP PFNGLUNIFORMMATRIX4FVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
typedef void (APIENTRYP PFNGLVERTEXATTRIBPOINTERPROC) (GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void *pointer);
#ifdef GL_GLEXT_PROTOTYPES
GLAPI void APIENTRY glBlendEquationSeparate (GLenum modeRGB, GLenum modeAlpha);
GLAPI void APIENTRY glAttachShader (GLuint program, GLuint shader);
GLAPI void APIENTRY glCompileShader (GLuint shader);
GLAPI GLuint APIENTRY glCreateProgram (void);
GLAPI GLuint APIENTRY glCreateShader (GLenum type);
GLAPI void APIENTRY glDeleteProgram (GLuint program);
GLAPI void APIENTRY glDeleteShader (GLuint shader);
GLAPI void APIENTRY glDetachShader (GLuint program, GLuint shader);
GLAPI void APIENTRY glEnableVertexAttribArray (GLuint index);
GLAPI GLint APIENTRY glGetAttribLocation (GLuint program, const GLchar *name);
GLAPI void APIENTRY glGetProgramiv (GLuint program, GLenum pname, GLint *params);
GLAPI void APIENTRY glGetProgramInfoLog (GLuint program, GLsizei bufSize, GLsizei *length, GLchar *infoLog);
GLAPI void APIENTRY glGetShaderiv (GLuint shader, GLenum pname, GLint *params);
GLAPI void APIENTRY glGetShaderInfoLog (GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *infoLog);
GLAPI GLint APIENTRY glGetUniformLocation (GLuint program, const GLchar *name);
GLAPI void APIENTRY glLinkProgram (GLuint program);
GLAPI void APIENTRY glShaderSource (GLuint shader, GLsizei count, const GLchar *const*string, const GLint *length);
GLAPI void APIENTRY glUseProgram (GLuint program);
GLAPI void APIENTRY glUniform1i (GLint location, GLint v0);
GLAPI void APIENTRY glUniformMatrix4fv (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
GLAPI void APIENTRY glVertexAttribPointer (GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void *pointer);
#endif
#endif /* GL_VERSION_2_0 */
#ifndef GL_VERSION_3_0
typedef khronos_uint16_t GLhalf;
#define GL_MAJOR_VERSION 0x821B
#define GL_MINOR_VERSION 0x821C
#define GL_NUM_EXTENSIONS 0x821D
#define GL_FRAMEBUFFER_SRGB 0x8DB9
#define GL_VERTEX_ARRAY_BINDING 0x85B5
typedef void (APIENTRYP PFNGLGETBOOLEANI_VPROC) (GLenum target, GLuint index, GLboolean *data);
typedef void (APIENTRYP PFNGLGETINTEGERI_VPROC) (GLenum target, GLuint index, GLint *data);
typedef const GLubyte *(APIENTRYP PFNGLGETSTRINGIPROC) (GLenum name, GLuint index);
typedef void (APIENTRYP PFNGLBINDVERTEXARRAYPROC) (GLuint array);
typedef void (APIENTRYP PFNGLDELETEVERTEXARRAYSPROC) (GLsizei n, const GLuint *arrays);
typedef void (APIENTRYP PFNGLGENVERTEXARRAYSPROC) (GLsizei n, GLuint *arrays);
#ifdef GL_GLEXT_PROTOTYPES
GLAPI const GLubyte *APIENTRY glGetStringi (GLenum name, GLuint index);
GLAPI void APIENTRY glBindVertexArray (GLuint array);
GLAPI void APIENTRY glDeleteVertexArrays (GLsizei n, const GLuint *arrays);
GLAPI void APIENTRY glGenVertexArrays (GLsizei n, GLuint *arrays);
#endif
#endif /* GL_VERSION_3_0 */
#ifndef GL_VERSION_3_1
#define GL_VERSION_3_1 1
#define GL_PRIMITIVE_RESTART 0x8F9D
#endif /* GL_VERSION_3_1 */
#ifndef GL_VERSION_3_2
#define GL_VERSION_3_2 1
typedef struct __GLsync *GLsync;
typedef khronos_uint64_t GLuint64;
typedef khronos_int64_t GLint64;
typedef void (APIENTRYP PFNGLDRAWELEMENTSBASEVERTEXPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices, GLint basevertex);
typedef void (APIENTRYP PFNGLGETINTEGER64I_VPROC) (GLenum target, GLuint index, GLint64 *data);
#ifdef GL_GLEXT_PROTOTYPES
GLAPI void APIENTRY glDrawElementsBaseVertex (GLenum mode, GLsizei count, GLenum type, const void *indices, GLint basevertex);
#endif
#endif /* GL_VERSION_3_2 */
#ifndef GL_VERSION_3_3
#define GL_VERSION_3_3 1
#define GL_SAMPLER_BINDING 0x8919
typedef void (APIENTRYP PFNGLBINDSAMPLERPROC) (GLuint unit, GLuint sampler);
#ifdef GL_GLEXT_PROTOTYPES
GLAPI void APIENTRY glBindSampler (GLuint unit, GLuint sampler);
#endif
#endif /* GL_VERSION_3_3 */
#ifndef GL_VERSION_4_1
typedef void (APIENTRYP PFNGLGETFLOATI_VPROC) (GLenum target, GLuint index, GLfloat *data);
typedef void (APIENTRYP PFNGLGETDOUBLEI_VPROC) (GLenum target, GLuint index, GLdouble *data);
#endif /* GL_VERSION_4_1 */
#ifndef GL_VERSION_4_3
typedef void (APIENTRY *GLDEBUGPROC)(GLenum source,GLenum type,GLuint id,GLenum severity,GLsizei length,const GLchar *message,const void *userParam);
#endif /* GL_VERSION_4_3 */
#ifndef GL_VERSION_4_5
#define GL_CLIP_ORIGIN 0x935C
typedef void (APIENTRYP PFNGLGETTRANSFORMFEEDBACKI_VPROC) (GLuint xfb, GLenum pname, GLuint index, GLint *param);
typedef void (APIENTRYP PFNGLGETTRANSFORMFEEDBACKI64_VPROC) (GLuint xfb, GLenum pname, GLuint index, GLint64 *param);
#endif /* GL_VERSION_4_5 */
#ifndef GL_ARB_bindless_texture
typedef khronos_uint64_t GLuint64EXT;
#endif /* GL_ARB_bindless_texture */
#ifndef GL_ARB_cl_event
struct _cl_context;
struct _cl_event;
#endif /* GL_ARB_cl_event */
#ifndef GL_ARB_clip_control
#define GL_ARB_clip_control 1
#endif /* GL_ARB_clip_control */
#ifndef GL_ARB_debug_output
typedef void (APIENTRY *GLDEBUGPROCARB)(GLenum source,GLenum type,GLuint id,GLenum severity,GLsizei length,const GLchar *message,const void *userParam);
#endif /* GL_ARB_debug_output */
#ifndef GL_EXT_EGL_image_storage
typedef void *GLeglImageOES;
#endif /* GL_EXT_EGL_image_storage */
#ifndef GL_EXT_direct_state_access
typedef void (APIENTRYP PFNGLGETFLOATI_VEXTPROC) (GLenum pname, GLuint index, GLfloat *params);
typedef void (APIENTRYP PFNGLGETDOUBLEI_VEXTPROC) (GLenum pname, GLuint index, GLdouble *params);
typedef void (APIENTRYP PFNGLGETPOINTERI_VEXTPROC) (GLenum pname, GLuint index, void **params);
typedef void (APIENTRYP PFNGLGETVERTEXARRAYINTEGERI_VEXTPROC) (GLuint vaobj, GLuint index, GLenum pname, GLint *param);
typedef void (APIENTRYP PFNGLGETVERTEXARRAYPOINTERI_VEXTPROC) (GLuint vaobj, GLuint index, GLenum pname, void **param);
#endif /* GL_EXT_direct_state_access */
#ifndef GL_NV_draw_vulkan_image
typedef void (APIENTRY *GLVULKANPROCNV)(void);
#endif /* GL_NV_draw_vulkan_image */
#ifndef GL_NV_gpu_shader5
typedef khronos_int64_t GLint64EXT;
#endif /* GL_NV_gpu_shader5 */
#ifndef GL_NV_vertex_buffer_unified_memory
typedef void (APIENTRYP PFNGLGETINTEGERUI64I_VNVPROC) (GLenum value, GLuint index, GLuint64EXT *result);
#endif /* GL_NV_vertex_buffer_unified_memory */
#ifdef __cplusplus
}
#endif
#endif
#ifndef GL3W_API
#define GL3W_API
#endif
#ifndef __gl_h_
#define __gl_h_
#endif
#ifdef __cplusplus
extern "C" {
#endif
#define GL3W_OK 0
#define GL3W_ERROR_INIT -1
#define GL3W_ERROR_LIBRARY_OPEN -2
#define GL3W_ERROR_OPENGL_VERSION -3
typedef void (*GL3WglProc)(void);
typedef GL3WglProc (*GL3WGetProcAddressProc)(const char *proc);
/* gl3w api */
GL3W_API int imgl3wInit(void);
GL3W_API int imgl3wInit2(GL3WGetProcAddressProc proc);
GL3W_API int imgl3wIsSupported(int major, int minor);
GL3W_API GL3WglProc imgl3wGetProcAddress(const char *proc);
/* gl3w internal state */
union GL3WProcs {
GL3WglProc ptr[53];
struct {
PFNGLACTIVETEXTUREPROC ActiveTexture;
PFNGLATTACHSHADERPROC AttachShader;
PFNGLBINDBUFFERPROC BindBuffer;
PFNGLBINDSAMPLERPROC BindSampler;
PFNGLBINDTEXTUREPROC BindTexture;
PFNGLBINDVERTEXARRAYPROC BindVertexArray;
PFNGLBLENDEQUATIONPROC BlendEquation;
PFNGLBLENDEQUATIONSEPARATEPROC BlendEquationSeparate;
PFNGLBLENDFUNCSEPARATEPROC BlendFuncSeparate;
PFNGLBUFFERDATAPROC BufferData;
PFNGLCLEARPROC Clear;
PFNGLCLEARCOLORPROC ClearColor;
PFNGLCOMPILESHADERPROC CompileShader;
PFNGLCREATEPROGRAMPROC CreateProgram;
PFNGLCREATESHADERPROC CreateShader;
PFNGLDELETEBUFFERSPROC DeleteBuffers;
PFNGLDELETEPROGRAMPROC DeleteProgram;
PFNGLDELETESHADERPROC DeleteShader;
PFNGLDELETETEXTURESPROC DeleteTextures;
PFNGLDELETEVERTEXARRAYSPROC DeleteVertexArrays;
PFNGLDETACHSHADERPROC DetachShader;
PFNGLDISABLEPROC Disable;
PFNGLDRAWELEMENTSPROC DrawElements;
PFNGLDRAWELEMENTSBASEVERTEXPROC DrawElementsBaseVertex;
PFNGLENABLEPROC Enable;
PFNGLENABLEVERTEXATTRIBARRAYPROC EnableVertexAttribArray;
PFNGLGENBUFFERSPROC GenBuffers;
PFNGLGENTEXTURESPROC GenTextures;
PFNGLGENVERTEXARRAYSPROC GenVertexArrays;
PFNGLGETATTRIBLOCATIONPROC GetAttribLocation;
PFNGLGETERRORPROC GetError;
PFNGLGETINTEGERVPROC GetIntegerv;
PFNGLGETPROGRAMINFOLOGPROC GetProgramInfoLog;
PFNGLGETPROGRAMIVPROC GetProgramiv;
PFNGLGETSHADERINFOLOGPROC GetShaderInfoLog;
PFNGLGETSHADERIVPROC GetShaderiv;
PFNGLGETSTRINGPROC GetString;
PFNGLGETSTRINGIPROC GetStringi;
PFNGLGETUNIFORMLOCATIONPROC GetUniformLocation;
PFNGLISENABLEDPROC IsEnabled;
PFNGLLINKPROGRAMPROC LinkProgram;
PFNGLPIXELSTOREIPROC PixelStorei;
PFNGLPOLYGONMODEPROC PolygonMode;
PFNGLREADPIXELSPROC ReadPixels;
PFNGLSCISSORPROC Scissor;
PFNGLSHADERSOURCEPROC ShaderSource;
PFNGLTEXIMAGE2DPROC TexImage2D;
PFNGLTEXPARAMETERIPROC TexParameteri;
PFNGLUNIFORM1IPROC Uniform1i;
PFNGLUNIFORMMATRIX4FVPROC UniformMatrix4fv;
PFNGLUSEPROGRAMPROC UseProgram;
PFNGLVERTEXATTRIBPOINTERPROC VertexAttribPointer;
PFNGLVIEWPORTPROC Viewport;
} gl;
};
GL3W_API extern union GL3WProcs imgl3wProcs;
/* OpenGL functions */
#define glActiveTexture imgl3wProcs.gl.ActiveTexture
#define glAttachShader imgl3wProcs.gl.AttachShader
#define glBindBuffer imgl3wProcs.gl.BindBuffer
#define glBindSampler imgl3wProcs.gl.BindSampler
#define glBindTexture imgl3wProcs.gl.BindTexture
#define glBindVertexArray imgl3wProcs.gl.BindVertexArray
#define glBlendEquation imgl3wProcs.gl.BlendEquation
#define glBlendEquationSeparate imgl3wProcs.gl.BlendEquationSeparate
#define glBlendFuncSeparate imgl3wProcs.gl.BlendFuncSeparate
#define glBufferData imgl3wProcs.gl.BufferData
#define glClear imgl3wProcs.gl.Clear
#define glClearColor imgl3wProcs.gl.ClearColor
#define glCompileShader imgl3wProcs.gl.CompileShader
#define glCreateProgram imgl3wProcs.gl.CreateProgram
#define glCreateShader imgl3wProcs.gl.CreateShader
#define glDeleteBuffers imgl3wProcs.gl.DeleteBuffers
#define glDeleteProgram imgl3wProcs.gl.DeleteProgram
#define glDeleteShader imgl3wProcs.gl.DeleteShader
#define glDeleteTextures imgl3wProcs.gl.DeleteTextures
#define glDeleteVertexArrays imgl3wProcs.gl.DeleteVertexArrays
#define glDetachShader imgl3wProcs.gl.DetachShader
#define glDisable imgl3wProcs.gl.Disable
#define glDrawElements imgl3wProcs.gl.DrawElements
#define glDrawElementsBaseVertex imgl3wProcs.gl.DrawElementsBaseVertex
#define glEnable imgl3wProcs.gl.Enable
#define glEnableVertexAttribArray imgl3wProcs.gl.EnableVertexAttribArray
#define glGenBuffers imgl3wProcs.gl.GenBuffers
#define glGenTextures imgl3wProcs.gl.GenTextures
#define glGenVertexArrays imgl3wProcs.gl.GenVertexArrays
#define glGetAttribLocation imgl3wProcs.gl.GetAttribLocation
#define glGetError imgl3wProcs.gl.GetError
#define glGetIntegerv imgl3wProcs.gl.GetIntegerv
#define glGetProgramInfoLog imgl3wProcs.gl.GetProgramInfoLog
#define glGetProgramiv imgl3wProcs.gl.GetProgramiv
#define glGetShaderInfoLog imgl3wProcs.gl.GetShaderInfoLog
#define glGetShaderiv imgl3wProcs.gl.GetShaderiv
#define glGetString imgl3wProcs.gl.GetString
#define glGetStringi imgl3wProcs.gl.GetStringi
#define glGetUniformLocation imgl3wProcs.gl.GetUniformLocation
#define glIsEnabled imgl3wProcs.gl.IsEnabled
#define glLinkProgram imgl3wProcs.gl.LinkProgram
#define glPixelStorei imgl3wProcs.gl.PixelStorei
#define glPolygonMode imgl3wProcs.gl.PolygonMode
#define glReadPixels imgl3wProcs.gl.ReadPixels
#define glScissor imgl3wProcs.gl.Scissor
#define glShaderSource imgl3wProcs.gl.ShaderSource
#define glTexImage2D imgl3wProcs.gl.TexImage2D
#define glTexParameteri imgl3wProcs.gl.TexParameteri
#define glUniform1i imgl3wProcs.gl.Uniform1i
#define glUniformMatrix4fv imgl3wProcs.gl.UniformMatrix4fv
#define glUseProgram imgl3wProcs.gl.UseProgram
#define glVertexAttribPointer imgl3wProcs.gl.VertexAttribPointer
#define glViewport imgl3wProcs.gl.Viewport
#ifdef __cplusplus
}
#endif
#endif
#ifdef IMGL3W_IMPL
#ifdef __cplusplus
extern "C" {
#endif
#include <stdlib.h>
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
#if defined(_WIN32)
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN 1
#endif
#include <windows.h>
static HMODULE libgl;
typedef PROC(__stdcall* GL3WglGetProcAddr)(LPCSTR);
static GL3WglGetProcAddr wgl_get_proc_address;
static int open_libgl(void)
{
libgl = LoadLibraryA("opengl32.dll");
if (!libgl)
return GL3W_ERROR_LIBRARY_OPEN;
wgl_get_proc_address = (GL3WglGetProcAddr)GetProcAddress(libgl, "wglGetProcAddress");
return GL3W_OK;
}
static void close_libgl(void) { FreeLibrary(libgl); }
static GL3WglProc get_proc(const char *proc)
{
GL3WglProc res;
res = (GL3WglProc)wgl_get_proc_address(proc);
if (!res)
res = (GL3WglProc)GetProcAddress(libgl, proc);
return res;
}
#elif defined(__APPLE__)
#include <dlfcn.h>
static void *libgl;
static int open_libgl(void)
{
libgl = dlopen("/System/Library/Frameworks/OpenGL.framework/OpenGL", RTLD_LAZY | RTLD_LOCAL);
if (!libgl)
return GL3W_ERROR_LIBRARY_OPEN;
return GL3W_OK;
}
static void close_libgl(void) { dlclose(libgl); }
static GL3WglProc get_proc(const char *proc)
{
GL3WglProc res;
*(void **)(&res) = dlsym(libgl, proc);
return res;
}
#else
#include <dlfcn.h>
static void *libgl;
static GL3WglProc (*glx_get_proc_address)(const GLubyte *);
static int open_libgl(void)
{
libgl = dlopen("libGL.so.1", RTLD_LAZY | RTLD_LOCAL);
if (!libgl)
return GL3W_ERROR_LIBRARY_OPEN;
*(void **)(&glx_get_proc_address) = dlsym(libgl, "glXGetProcAddressARB");
return GL3W_OK;
}
static void close_libgl(void) { dlclose(libgl); }
static GL3WglProc get_proc(const char *proc)
{
GL3WglProc res;
res = glx_get_proc_address((const GLubyte *)proc);
if (!res)
*(void **)(&res) = dlsym(libgl, proc);
return res;
}
#endif
static struct { int major, minor; } version;
static int parse_version(void)
{
if (!glGetIntegerv)
return GL3W_ERROR_INIT;
glGetIntegerv(GL_MAJOR_VERSION, &version.major);
glGetIntegerv(GL_MINOR_VERSION, &version.minor);
if (version.major < 3)
return GL3W_ERROR_OPENGL_VERSION;
return GL3W_OK;
}
static void load_procs(GL3WGetProcAddressProc proc);
int imgl3wInit(void)
{
int res = open_libgl();
if (res)
return res;
atexit(close_libgl);
return imgl3wInit2(get_proc);
}
int imgl3wInit2(GL3WGetProcAddressProc proc)
{
load_procs(proc);
return parse_version();
}
int imgl3wIsSupported(int major, int minor)
{
if (major < 3)
return 0;
if (version.major == major)
return version.minor >= minor;
return version.major >= major;
}
GL3WglProc imgl3wGetProcAddress(const char *proc) { return get_proc(proc); }
static const char *proc_names[] = {
"glActiveTexture",
"glAttachShader",
"glBindBuffer",
"glBindSampler",
"glBindTexture",
"glBindVertexArray",
"glBlendEquation",
"glBlendEquationSeparate",
"glBlendFuncSeparate",
"glBufferData",
"glClear",
"glClearColor",
"glCompileShader",
"glCreateProgram",
"glCreateShader",
"glDeleteBuffers",
"glDeleteProgram",
"glDeleteShader",
"glDeleteTextures",
"glDeleteVertexArrays",
"glDetachShader",
"glDisable",
"glDrawElements",
"glDrawElementsBaseVertex",
"glEnable",
"glEnableVertexAttribArray",
"glGenBuffers",
"glGenTextures",
"glGenVertexArrays",
"glGetAttribLocation",
"glGetError",
"glGetIntegerv",
"glGetProgramInfoLog",
"glGetProgramiv",
"glGetShaderInfoLog",
"glGetShaderiv",
"glGetString",
"glGetStringi",
"glGetUniformLocation",
"glIsEnabled",
"glLinkProgram",
"glPixelStorei",
"glPolygonMode",
"glReadPixels",
"glScissor",
"glShaderSource",
"glTexImage2D",
"glTexParameteri",
"glUniform1i",
"glUniformMatrix4fv",
"glUseProgram",
"glVertexAttribPointer",
"glViewport",
};
GL3W_API union GL3WProcs imgl3wProcs;
static void load_procs(GL3WGetProcAddressProc proc)
{
size_t i;
for (i = 0; i < ARRAY_SIZE(proc_names); i++)
imgl3wProcs.ptr[i] = proc(proc_names[i]);
}
#ifdef __cplusplus
}
#endif
#endif

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// dear imgui: Platform Backend for OSX / Cocoa
// This needs to be used along with a Renderer (e.g. OpenGL2, OpenGL3, Vulkan, Metal..)
// [ALPHA] Early backend, not well tested. If you want a portable application, prefer using the GLFW or SDL platform Backends on Mac.
// Implemented features:
// [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
// [X] Platform: OSX clipboard is supported within core Dear ImGui (no specific code in this backend).
// Issues:
// [ ] Platform: Keys are all generally very broken. Best using [event keycode] and not [event characters]..
// [ ] Platform: Multi-viewport / platform windows.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
#include "imgui.h" // IMGUI_IMPL_API
@class NSEvent;
@class NSView;
IMGUI_IMPL_API bool ImGui_ImplOSX_Init();
IMGUI_IMPL_API void ImGui_ImplOSX_Shutdown();
IMGUI_IMPL_API void ImGui_ImplOSX_NewFrame(NSView* _Nullable view);
IMGUI_IMPL_API bool ImGui_ImplOSX_HandleEvent(NSEvent* _Nonnull event, NSView* _Nullable view);

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// dear imgui: Platform Backend for OSX / Cocoa
// This needs to be used along with a Renderer (e.g. OpenGL2, OpenGL3, Vulkan, Metal..)
// [ALPHA] Early backend, not well tested. If you want a portable application, prefer using the GLFW or SDL platform Backends on Mac.
// Implemented features:
// [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
// [X] Platform: OSX clipboard is supported within core Dear ImGui (no specific code in this backend).
// Issues:
// [ ] Platform: Keys are all generally very broken. Best using [event keycode] and not [event characters]..
// [ ] Platform: Multi-viewport / platform windows.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
#include "imgui.h"
#include "imgui_impl_osx.h"
#import <Cocoa/Cocoa.h>
#include <mach/mach_time.h>
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2021-09-21: Use mach_absolute_time as CFAbsoluteTimeGetCurrent can jump backwards.
// 2021-08-17: Calling io.AddFocusEvent() on NSApplicationDidBecomeActiveNotification/NSApplicationDidResignActiveNotification events.
// 2021-06-23: Inputs: Added a fix for shortcuts using CTRL key instead of CMD key.
// 2021-04-19: Inputs: Added a fix for keys remaining stuck in pressed state when CMD-tabbing into different application.
// 2021-01-27: Inputs: Added a fix for mouse position not being reported when mouse buttons other than left one are down.
// 2020-10-28: Inputs: Added a fix for handling keypad-enter key.
// 2020-05-25: Inputs: Added a fix for missing trackpad clicks when done with "soft tap".
// 2019-12-05: Inputs: Added support for ImGuiMouseCursor_NotAllowed mouse cursor.
// 2019-10-11: Inputs: Fix using Backspace key.
// 2019-07-21: Re-added clipboard handlers as they are not enabled by default in core imgui.cpp (reverted 2019-05-18 change).
// 2019-05-28: Inputs: Added mouse cursor shape and visibility support.
// 2019-05-18: Misc: Removed clipboard handlers as they are now supported by core imgui.cpp.
// 2019-05-11: Inputs: Don't filter character values before calling AddInputCharacter() apart from 0xF700..0xFFFF range.
// 2018-11-30: Misc: Setting up io.BackendPlatformName so it can be displayed in the About Window.
// 2018-07-07: Initial version.
@class ImFocusObserver;
// Data
static double g_HostClockPeriod = 0.0;
static double g_Time = 0.0;
static NSCursor* g_MouseCursors[ImGuiMouseCursor_COUNT] = {};
static bool g_MouseCursorHidden = false;
static bool g_MouseJustPressed[ImGuiMouseButton_COUNT] = {};
static bool g_MouseDown[ImGuiMouseButton_COUNT] = {};
static ImFocusObserver* g_FocusObserver = NULL;
// Undocumented methods for creating cursors.
@interface NSCursor()
+ (id)_windowResizeNorthWestSouthEastCursor;
+ (id)_windowResizeNorthEastSouthWestCursor;
+ (id)_windowResizeNorthSouthCursor;
+ (id)_windowResizeEastWestCursor;
@end
static void InitHostClockPeriod()
{
struct mach_timebase_info info;
mach_timebase_info(&info);
g_HostClockPeriod = 1e-9 * ((double)info.denom / (double)info.numer); // Period is the reciprocal of frequency.
}
static double GetMachAbsoluteTimeInSeconds()
{
return (double)mach_absolute_time() * g_HostClockPeriod;
}
static void resetKeys()
{
ImGuiIO& io = ImGui::GetIO();
memset(io.KeysDown, 0, sizeof(io.KeysDown));
io.KeyCtrl = io.KeyShift = io.KeyAlt = io.KeySuper = false;
}
@interface ImFocusObserver : NSObject
- (void)onApplicationBecomeActive:(NSNotification*)aNotification;
- (void)onApplicationBecomeInactive:(NSNotification*)aNotification;
@end
@implementation ImFocusObserver
- (void)onApplicationBecomeActive:(NSNotification*)aNotification
{
ImGuiIO& io = ImGui::GetIO();
io.AddFocusEvent(true);
}
- (void)onApplicationBecomeInactive:(NSNotification*)aNotification
{
ImGuiIO& io = ImGui::GetIO();
io.AddFocusEvent(false);
// Unfocused applications do not receive input events, therefore we must manually
// release any pressed keys when application loses focus, otherwise they would remain
// stuck in a pressed state. https://github.com/ocornut/imgui/issues/3832
resetKeys();
}
@end
// Functions
bool ImGui_ImplOSX_Init()
{
ImGuiIO& io = ImGui::GetIO();
// Setup backend capabilities flags
io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors; // We can honor GetMouseCursor() values (optional)
//io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos; // We can honor io.WantSetMousePos requests (optional, rarely used)
//io.BackendFlags |= ImGuiBackendFlags_PlatformHasViewports; // We can create multi-viewports on the Platform side (optional)
//io.BackendFlags |= ImGuiBackendFlags_HasMouseHoveredViewport; // We can set io.MouseHoveredViewport correctly (optional, not easy)
io.BackendPlatformName = "imgui_impl_osx";
// Keyboard mapping. Dear ImGui will use those indices to peek into the io.KeyDown[] array.
const int offset_for_function_keys = 256 - 0xF700;
io.KeyMap[ImGuiKey_Tab] = '\t';
io.KeyMap[ImGuiKey_LeftArrow] = NSLeftArrowFunctionKey + offset_for_function_keys;
io.KeyMap[ImGuiKey_RightArrow] = NSRightArrowFunctionKey + offset_for_function_keys;
io.KeyMap[ImGuiKey_UpArrow] = NSUpArrowFunctionKey + offset_for_function_keys;
io.KeyMap[ImGuiKey_DownArrow] = NSDownArrowFunctionKey + offset_for_function_keys;
io.KeyMap[ImGuiKey_PageUp] = NSPageUpFunctionKey + offset_for_function_keys;
io.KeyMap[ImGuiKey_PageDown] = NSPageDownFunctionKey + offset_for_function_keys;
io.KeyMap[ImGuiKey_Home] = NSHomeFunctionKey + offset_for_function_keys;
io.KeyMap[ImGuiKey_End] = NSEndFunctionKey + offset_for_function_keys;
io.KeyMap[ImGuiKey_Insert] = NSInsertFunctionKey + offset_for_function_keys;
io.KeyMap[ImGuiKey_Delete] = NSDeleteFunctionKey + offset_for_function_keys;
io.KeyMap[ImGuiKey_Backspace] = 127;
io.KeyMap[ImGuiKey_Space] = 32;
io.KeyMap[ImGuiKey_Enter] = 13;
io.KeyMap[ImGuiKey_Escape] = 27;
io.KeyMap[ImGuiKey_KeyPadEnter] = 3;
io.KeyMap[ImGuiKey_A] = 'A';
io.KeyMap[ImGuiKey_C] = 'C';
io.KeyMap[ImGuiKey_V] = 'V';
io.KeyMap[ImGuiKey_X] = 'X';
io.KeyMap[ImGuiKey_Y] = 'Y';
io.KeyMap[ImGuiKey_Z] = 'Z';
// Load cursors. Some of them are undocumented.
g_MouseCursorHidden = false;
g_MouseCursors[ImGuiMouseCursor_Arrow] = [NSCursor arrowCursor];
g_MouseCursors[ImGuiMouseCursor_TextInput] = [NSCursor IBeamCursor];
g_MouseCursors[ImGuiMouseCursor_ResizeAll] = [NSCursor closedHandCursor];
g_MouseCursors[ImGuiMouseCursor_Hand] = [NSCursor pointingHandCursor];
g_MouseCursors[ImGuiMouseCursor_NotAllowed] = [NSCursor operationNotAllowedCursor];
g_MouseCursors[ImGuiMouseCursor_ResizeNS] = [NSCursor respondsToSelector:@selector(_windowResizeNorthSouthCursor)] ? [NSCursor _windowResizeNorthSouthCursor] : [NSCursor resizeUpDownCursor];
g_MouseCursors[ImGuiMouseCursor_ResizeEW] = [NSCursor respondsToSelector:@selector(_windowResizeEastWestCursor)] ? [NSCursor _windowResizeEastWestCursor] : [NSCursor resizeLeftRightCursor];
g_MouseCursors[ImGuiMouseCursor_ResizeNESW] = [NSCursor respondsToSelector:@selector(_windowResizeNorthEastSouthWestCursor)] ? [NSCursor _windowResizeNorthEastSouthWestCursor] : [NSCursor closedHandCursor];
g_MouseCursors[ImGuiMouseCursor_ResizeNWSE] = [NSCursor respondsToSelector:@selector(_windowResizeNorthWestSouthEastCursor)] ? [NSCursor _windowResizeNorthWestSouthEastCursor] : [NSCursor closedHandCursor];
// Note that imgui.cpp also include default OSX clipboard handlers which can be enabled
// by adding '#define IMGUI_ENABLE_OSX_DEFAULT_CLIPBOARD_FUNCTIONS' in imconfig.h and adding '-framework ApplicationServices' to your linker command-line.
// Since we are already in ObjC land here, it is easy for us to add a clipboard handler using the NSPasteboard api.
io.SetClipboardTextFn = [](void*, const char* str) -> void
{
NSPasteboard* pasteboard = [NSPasteboard generalPasteboard];
[pasteboard declareTypes:[NSArray arrayWithObject:NSPasteboardTypeString] owner:nil];
[pasteboard setString:[NSString stringWithUTF8String:str] forType:NSPasteboardTypeString];
};
io.GetClipboardTextFn = [](void*) -> const char*
{
NSPasteboard* pasteboard = [NSPasteboard generalPasteboard];
NSString* available = [pasteboard availableTypeFromArray: [NSArray arrayWithObject:NSPasteboardTypeString]];
if (![available isEqualToString:NSPasteboardTypeString])
return NULL;
NSString* string = [pasteboard stringForType:NSPasteboardTypeString];
if (string == nil)
return NULL;
const char* string_c = (const char*)[string UTF8String];
size_t string_len = strlen(string_c);
static ImVector<char> s_clipboard;
s_clipboard.resize((int)string_len + 1);
strcpy(s_clipboard.Data, string_c);
return s_clipboard.Data;
};
g_FocusObserver = [[ImFocusObserver alloc] init];
[[NSNotificationCenter defaultCenter] addObserver:g_FocusObserver
selector:@selector(onApplicationBecomeActive:)
name:NSApplicationDidBecomeActiveNotification
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:g_FocusObserver
selector:@selector(onApplicationBecomeInactive:)
name:NSApplicationDidResignActiveNotification
object:nil];
return true;
}
void ImGui_ImplOSX_Shutdown()
{
g_FocusObserver = NULL;
}
static void ImGui_ImplOSX_UpdateMouseCursorAndButtons()
{
// Update buttons
ImGuiIO& io = ImGui::GetIO();
for (int i = 0; i < IM_ARRAYSIZE(io.MouseDown); i++)
{
// If a mouse press event came, always pass it as "mouse held this frame", so we don't miss click-release events that are shorter than 1 frame.
io.MouseDown[i] = g_MouseJustPressed[i] || g_MouseDown[i];
g_MouseJustPressed[i] = false;
}
if (io.ConfigFlags & ImGuiConfigFlags_NoMouseCursorChange)
return;
ImGuiMouseCursor imgui_cursor = ImGui::GetMouseCursor();
if (io.MouseDrawCursor || imgui_cursor == ImGuiMouseCursor_None)
{
// Hide OS mouse cursor if imgui is drawing it or if it wants no cursor
if (!g_MouseCursorHidden)
{
g_MouseCursorHidden = true;
[NSCursor hide];
}
}
else
{
// Show OS mouse cursor
[g_MouseCursors[g_MouseCursors[imgui_cursor] ? imgui_cursor : ImGuiMouseCursor_Arrow] set];
if (g_MouseCursorHidden)
{
g_MouseCursorHidden = false;
[NSCursor unhide];
}
}
}
void ImGui_ImplOSX_NewFrame(NSView* view)
{
// Setup display size
ImGuiIO& io = ImGui::GetIO();
if (view)
{
const float dpi = (float)[view.window backingScaleFactor];
io.DisplaySize = ImVec2((float)view.bounds.size.width, (float)view.bounds.size.height);
io.DisplayFramebufferScale = ImVec2(dpi, dpi);
}
// Setup time step
if (g_Time == 0.0)
{
InitHostClockPeriod();
g_Time = GetMachAbsoluteTimeInSeconds();
}
double current_time = GetMachAbsoluteTimeInSeconds();
io.DeltaTime = (float)(current_time - g_Time);
g_Time = current_time;
ImGui_ImplOSX_UpdateMouseCursorAndButtons();
}
static int mapCharacterToKey(int c)
{
if (c >= 'a' && c <= 'z')
return c - 'a' + 'A';
if (c == 25) // SHIFT+TAB -> TAB
return 9;
if (c >= 0 && c < 256)
return c;
if (c >= 0xF700 && c < 0xF700 + 256)
return c - 0xF700 + 256;
return -1;
}
bool ImGui_ImplOSX_HandleEvent(NSEvent* event, NSView* view)
{
ImGuiIO& io = ImGui::GetIO();
if (event.type == NSEventTypeLeftMouseDown || event.type == NSEventTypeRightMouseDown || event.type == NSEventTypeOtherMouseDown)
{
int button = (int)[event buttonNumber];
if (button >= 0 && button < IM_ARRAYSIZE(g_MouseDown))
g_MouseDown[button] = g_MouseJustPressed[button] = true;
return io.WantCaptureMouse;
}
if (event.type == NSEventTypeLeftMouseUp || event.type == NSEventTypeRightMouseUp || event.type == NSEventTypeOtherMouseUp)
{
int button = (int)[event buttonNumber];
if (button >= 0 && button < IM_ARRAYSIZE(g_MouseDown))
g_MouseDown[button] = false;
return io.WantCaptureMouse;
}
if (event.type == NSEventTypeMouseMoved || event.type == NSEventTypeLeftMouseDragged || event.type == NSEventTypeRightMouseDragged || event.type == NSEventTypeOtherMouseDragged)
{
NSPoint mousePoint = event.locationInWindow;
mousePoint = [view convertPoint:mousePoint fromView:nil];
mousePoint = NSMakePoint(mousePoint.x, view.bounds.size.height - mousePoint.y);
io.MousePos = ImVec2((float)mousePoint.x, (float)mousePoint.y);
}
if (event.type == NSEventTypeScrollWheel)
{
double wheel_dx = 0.0;
double wheel_dy = 0.0;
#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1070
if (floor(NSAppKitVersionNumber) > NSAppKitVersionNumber10_6)
{
wheel_dx = [event scrollingDeltaX];
wheel_dy = [event scrollingDeltaY];
if ([event hasPreciseScrollingDeltas])
{
wheel_dx *= 0.1;
wheel_dy *= 0.1;
}
}
else
#endif // MAC_OS_X_VERSION_MAX_ALLOWED
{
wheel_dx = [event deltaX];
wheel_dy = [event deltaY];
}
if (fabs(wheel_dx) > 0.0)
io.MouseWheelH += (float)wheel_dx * 0.1f;
if (fabs(wheel_dy) > 0.0)
io.MouseWheel += (float)wheel_dy * 0.1f;
return io.WantCaptureMouse;
}
// FIXME: All the key handling is wrong and broken. Refer to GLFW's cocoa_init.mm and cocoa_window.mm.
if (event.type == NSEventTypeKeyDown)
{
NSString* str = [event characters];
NSUInteger len = [str length];
for (NSUInteger i = 0; i < len; i++)
{
int c = [str characterAtIndex:i];
if (!io.KeySuper && !(c >= 0xF700 && c <= 0xFFFF) && c != 127)
io.AddInputCharacter((unsigned int)c);
// We must reset in case we're pressing a sequence of special keys while keeping the command pressed
int key = mapCharacterToKey(c);
if (key != -1 && key < 256 && !io.KeySuper)
resetKeys();
if (key != -1)
io.KeysDown[key] = true;
}
return io.WantCaptureKeyboard;
}
if (event.type == NSEventTypeKeyUp)
{
NSString* str = [event characters];
NSUInteger len = [str length];
for (NSUInteger i = 0; i < len; i++)
{
int c = [str characterAtIndex:i];
int key = mapCharacterToKey(c);
if (key != -1)
io.KeysDown[key] = false;
}
return io.WantCaptureKeyboard;
}
if (event.type == NSEventTypeFlagsChanged)
{
unsigned int flags = [event modifierFlags] & NSEventModifierFlagDeviceIndependentFlagsMask;
bool oldKeyCtrl = io.KeyCtrl;
bool oldKeyShift = io.KeyShift;
bool oldKeyAlt = io.KeyAlt;
bool oldKeySuper = io.KeySuper;
io.KeyCtrl = flags & NSEventModifierFlagControl;
io.KeyShift = flags & NSEventModifierFlagShift;
io.KeyAlt = flags & NSEventModifierFlagOption;
io.KeySuper = flags & NSEventModifierFlagCommand;
// We must reset them as we will not receive any keyUp event if they where pressed with a modifier
if ((oldKeyShift && !io.KeyShift) || (oldKeyCtrl && !io.KeyCtrl) || (oldKeyAlt && !io.KeyAlt) || (oldKeySuper && !io.KeySuper))
resetKeys();
return io.WantCaptureKeyboard;
}
return false;
}

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// dear imgui: Platform Backend for SDL2
// This needs to be used along with a Renderer (e.g. DirectX11, OpenGL3, Vulkan..)
// (Info: SDL2 is a cross-platform general purpose library for handling windows, inputs, graphics context creation, etc.)
// (Prefer SDL 2.0.5+ for full feature support.)
// Implemented features:
// [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
// [X] Platform: Clipboard support.
// [X] Platform: Keyboard arrays indexed using SDL_SCANCODE_* codes, e.g. ImGui::IsKeyPressed(SDL_SCANCODE_SPACE).
// [X] Platform: Gamepad support. Enabled with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
// [X] Platform: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
// Missing features:
// [ ] Platform: SDL2 handling of IME under Windows appears to be broken and it explicitly disable the regular Windows IME. You can restore Windows IME by compiling SDL with SDL_DISABLE_WINDOWS_IME.
// [ ] Platform: Multi-viewport + Minimized windows seems to break mouse wheel events (at least under Windows).
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2021-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
// 2021-08-17: Calling io.AddFocusEvent() on SDL_WINDOWEVENT_FOCUS_GAINED/SDL_WINDOWEVENT_FOCUS_LOST.
// 2021-07-29: Inputs: MousePos is correctly reported when the host platform window is hovered but not focused (using SDL_GetMouseFocus() + SDL_HINT_MOUSE_FOCUS_CLICKTHROUGH, requires SDL 2.0.5+)
// 2021-06:29: *BREAKING CHANGE* Removed 'SDL_Window* window' parameter to ImGui_ImplSDL2_NewFrame() which was unnecessary.
// 2021-06-29: Reorganized backend to pull data from a single structure to facilitate usage with multiple-contexts (all g_XXXX access changed to bd->XXXX).
// 2021-03-22: Rework global mouse pos availability check listing supported platforms explicitly, effectively fixing mouse access on Raspberry Pi. (#2837, #3950)
// 2020-05-25: Misc: Report a zero display-size when window is minimized, to be consistent with other backends.
// 2020-02-20: Inputs: Fixed mapping for ImGuiKey_KeyPadEnter (using SDL_SCANCODE_KP_ENTER instead of SDL_SCANCODE_RETURN2).
// 2019-12-17: Inputs: On Wayland, use SDL_GetMouseState (because there is no global mouse state).
// 2019-12-05: Inputs: Added support for ImGuiMouseCursor_NotAllowed mouse cursor.
// 2019-07-21: Inputs: Added mapping for ImGuiKey_KeyPadEnter.
// 2019-04-23: Inputs: Added support for SDL_GameController (if ImGuiConfigFlags_NavEnableGamepad is set by user application).
// 2019-03-12: Misc: Preserve DisplayFramebufferScale when main window is minimized.
// 2018-12-21: Inputs: Workaround for Android/iOS which don't seem to handle focus related calls.
// 2018-11-30: Misc: Setting up io.BackendPlatformName so it can be displayed in the About Window.
// 2018-11-14: Changed the signature of ImGui_ImplSDL2_ProcessEvent() to take a 'const SDL_Event*'.
// 2018-08-01: Inputs: Workaround for Emscripten which doesn't seem to handle focus related calls.
// 2018-06-29: Inputs: Added support for the ImGuiMouseCursor_Hand cursor.
// 2018-06-08: Misc: Extracted imgui_impl_sdl.cpp/.h away from the old combined SDL2+OpenGL/Vulkan examples.
// 2018-06-08: Misc: ImGui_ImplSDL2_InitForOpenGL() now takes a SDL_GLContext parameter.
// 2018-05-09: Misc: Fixed clipboard paste memory leak (we didn't call SDL_FreeMemory on the data returned by SDL_GetClipboardText).
// 2018-03-20: Misc: Setup io.BackendFlags ImGuiBackendFlags_HasMouseCursors flag + honor ImGuiConfigFlags_NoMouseCursorChange flag.
// 2018-02-16: Inputs: Added support for mouse cursors, honoring ImGui::GetMouseCursor() value.
// 2018-02-06: Misc: Removed call to ImGui::Shutdown() which is not available from 1.60 WIP, user needs to call CreateContext/DestroyContext themselves.
// 2018-02-06: Inputs: Added mapping for ImGuiKey_Space.
// 2018-02-05: Misc: Using SDL_GetPerformanceCounter() instead of SDL_GetTicks() to be able to handle very high framerate (1000+ FPS).
// 2018-02-05: Inputs: Keyboard mapping is using scancodes everywhere instead of a confusing mixture of keycodes and scancodes.
// 2018-01-20: Inputs: Added Horizontal Mouse Wheel support.
// 2018-01-19: Inputs: When available (SDL 2.0.4+) using SDL_CaptureMouse() to retrieve coordinates outside of client area when dragging. Otherwise (SDL 2.0.3 and before) testing for SDL_WINDOW_INPUT_FOCUS instead of SDL_WINDOW_MOUSE_FOCUS.
// 2018-01-18: Inputs: Added mapping for ImGuiKey_Insert.
// 2017-08-25: Inputs: MousePos set to -FLT_MAX,-FLT_MAX when mouse is unavailable/missing (instead of -1,-1).
// 2016-10-15: Misc: Added a void* user_data parameter to Clipboard function handlers.
#include "imgui.h"
#include "imgui_impl_sdl.h"
// SDL
// (the multi-viewports feature requires SDL features supported from SDL 2.0.4+. SDL 2.0.5+ is highly recommended)
#include <SDL.h>
#include <SDL_syswm.h>
#if defined(__APPLE__)
#include <TargetConditionals.h>
#endif
#if SDL_VERSION_ATLEAST(2,0,4) && !defined(__EMSCRIPTEN__) && !defined(__ANDROID__) && !(defined(__APPLE__) && TARGET_OS_IOS)
#define SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE 1
#else
#define SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE 0
#endif
#define SDL_HAS_MOUSE_FOCUS_CLICKTHROUGH SDL_VERSION_ATLEAST(2,0,5)
#define SDL_HAS_WINDOW_ALPHA SDL_VERSION_ATLEAST(2,0,5)
#define SDL_HAS_ALWAYS_ON_TOP SDL_VERSION_ATLEAST(2,0,5)
#define SDL_HAS_USABLE_DISPLAY_BOUNDS SDL_VERSION_ATLEAST(2,0,5)
#define SDL_HAS_PER_MONITOR_DPI SDL_VERSION_ATLEAST(2,0,4)
#define SDL_HAS_VULKAN SDL_VERSION_ATLEAST(2,0,6)
#if !SDL_HAS_VULKAN
static const Uint32 SDL_WINDOW_VULKAN = 0x10000000;
#endif
// SDL Data
struct ImGui_ImplSDL2_Data
{
SDL_Window* Window;
Uint64 Time;
bool MousePressed[3];
SDL_Cursor* MouseCursors[ImGuiMouseCursor_COUNT];
char* ClipboardTextData;
bool MouseCanUseGlobalState;
bool UseVulkan;
ImGui_ImplSDL2_Data() { memset(this, 0, sizeof(*this)); }
};
// Backend data stored in io.BackendPlatformUserData to allow support for multiple Dear ImGui contexts
// It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts.
// FIXME: multi-context support is not well tested and probably dysfunctional in this backend.
// FIXME: some shared resources (mouse cursor shape, gamepad) are mishandled when using multi-context.
static ImGui_ImplSDL2_Data* ImGui_ImplSDL2_GetBackendData()
{
return ImGui::GetCurrentContext() ? (ImGui_ImplSDL2_Data*)ImGui::GetIO().BackendPlatformUserData : NULL;
}
// Forward Declarations
static void ImGui_ImplSDL2_UpdateMonitors();
static void ImGui_ImplSDL2_InitPlatformInterface(SDL_Window* window, void* sdl_gl_context);
static void ImGui_ImplSDL2_ShutdownPlatformInterface();
// Functions
static const char* ImGui_ImplSDL2_GetClipboardText(void*)
{
ImGui_ImplSDL2_Data* bd = ImGui_ImplSDL2_GetBackendData();
if (bd->ClipboardTextData)
SDL_free(bd->ClipboardTextData);
bd->ClipboardTextData = SDL_GetClipboardText();
return bd->ClipboardTextData;
}
static void ImGui_ImplSDL2_SetClipboardText(void*, const char* text)
{
SDL_SetClipboardText(text);
}
// You can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if dear imgui wants to use your inputs.
// - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application.
// - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application.
// Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags.
// If you have multiple SDL events and some of them are not meant to be used by dear imgui, you may need to filter events based on their windowID field.
bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplSDL2_Data* bd = ImGui_ImplSDL2_GetBackendData();
switch (event->type)
{
case SDL_MOUSEWHEEL:
{
if (event->wheel.x > 0) io.MouseWheelH += 1;
if (event->wheel.x < 0) io.MouseWheelH -= 1;
if (event->wheel.y > 0) io.MouseWheel += 1;
if (event->wheel.y < 0) io.MouseWheel -= 1;
return true;
}
case SDL_MOUSEBUTTONDOWN:
{
if (event->button.button == SDL_BUTTON_LEFT) { bd->MousePressed[0] = true; }
if (event->button.button == SDL_BUTTON_RIGHT) { bd->MousePressed[1] = true; }
if (event->button.button == SDL_BUTTON_MIDDLE) { bd->MousePressed[2] = true; }
return true;
}
case SDL_TEXTINPUT:
{
io.AddInputCharactersUTF8(event->text.text);
return true;
}
case SDL_KEYDOWN:
case SDL_KEYUP:
{
int key = event->key.keysym.scancode;
IM_ASSERT(key >= 0 && key < IM_ARRAYSIZE(io.KeysDown));
io.KeysDown[key] = (event->type == SDL_KEYDOWN);
io.KeyShift = ((SDL_GetModState() & KMOD_SHIFT) != 0);
io.KeyCtrl = ((SDL_GetModState() & KMOD_CTRL) != 0);
io.KeyAlt = ((SDL_GetModState() & KMOD_ALT) != 0);
#ifdef _WIN32
io.KeySuper = false;
#else
io.KeySuper = ((SDL_GetModState() & KMOD_GUI) != 0);
#endif
return true;
}
// Multi-viewport support
case SDL_WINDOWEVENT:
Uint8 window_event = event->window.event;
if (window_event == SDL_WINDOWEVENT_CLOSE || window_event == SDL_WINDOWEVENT_MOVED || window_event == SDL_WINDOWEVENT_RESIZED || window_event == SDL_WINDOWEVENT_FOCUS_GAINED || window_event == SDL_WINDOWEVENT_FOCUS_LOST)
if (ImGuiViewport* viewport = ImGui::FindViewportByPlatformHandle((void*)SDL_GetWindowFromID(event->window.windowID)))
{
if (window_event == SDL_WINDOWEVENT_CLOSE)
viewport->PlatformRequestClose = true;
if (window_event == SDL_WINDOWEVENT_MOVED)
viewport->PlatformRequestMove = true;
if (window_event == SDL_WINDOWEVENT_RESIZED)
viewport->PlatformRequestResize = true;
if (window_event == SDL_WINDOWEVENT_FOCUS_GAINED)
io.AddFocusEvent(true);
else if (window_event == SDL_WINDOWEVENT_FOCUS_LOST)
io.AddFocusEvent(false);
return true;
}
break;
}
return false;
}
static bool ImGui_ImplSDL2_Init(SDL_Window* window, void* sdl_gl_context)
{
ImGuiIO& io = ImGui::GetIO();
IM_ASSERT(io.BackendPlatformUserData == NULL && "Already initialized a platform backend!");
// Check and store if we are on a SDL backend that supports global mouse position
// ("wayland" and "rpi" don't support it, but we chose to use a white-list instead of a black-list)
bool mouse_can_use_global_state = false;
#if SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE
const char* sdl_backend = SDL_GetCurrentVideoDriver();
const char* global_mouse_whitelist[] = { "windows", "cocoa", "x11", "DIVE", "VMAN" };
for (int n = 0; n < IM_ARRAYSIZE(global_mouse_whitelist); n++)
if (strncmp(sdl_backend, global_mouse_whitelist[n], strlen(global_mouse_whitelist[n])) == 0)
mouse_can_use_global_state = true;
#endif
// Setup backend capabilities flags
ImGui_ImplSDL2_Data* bd = IM_NEW(ImGui_ImplSDL2_Data)();
io.BackendPlatformUserData = (void*)bd;
io.BackendPlatformName = "imgui_impl_sdl";
io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors; // We can honor GetMouseCursor() values (optional)
io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos; // We can honor io.WantSetMousePos requests (optional, rarely used)
if (mouse_can_use_global_state)
io.BackendFlags |= ImGuiBackendFlags_PlatformHasViewports; // We can create multi-viewports on the Platform side (optional)
bd->Window = window;
bd->MouseCanUseGlobalState = mouse_can_use_global_state;
// Keyboard mapping. Dear ImGui will use those indices to peek into the io.KeysDown[] array.
io.KeyMap[ImGuiKey_Tab] = SDL_SCANCODE_TAB;
io.KeyMap[ImGuiKey_LeftArrow] = SDL_SCANCODE_LEFT;
io.KeyMap[ImGuiKey_RightArrow] = SDL_SCANCODE_RIGHT;
io.KeyMap[ImGuiKey_UpArrow] = SDL_SCANCODE_UP;
io.KeyMap[ImGuiKey_DownArrow] = SDL_SCANCODE_DOWN;
io.KeyMap[ImGuiKey_PageUp] = SDL_SCANCODE_PAGEUP;
io.KeyMap[ImGuiKey_PageDown] = SDL_SCANCODE_PAGEDOWN;
io.KeyMap[ImGuiKey_Home] = SDL_SCANCODE_HOME;
io.KeyMap[ImGuiKey_End] = SDL_SCANCODE_END;
io.KeyMap[ImGuiKey_Insert] = SDL_SCANCODE_INSERT;
io.KeyMap[ImGuiKey_Delete] = SDL_SCANCODE_DELETE;
io.KeyMap[ImGuiKey_Backspace] = SDL_SCANCODE_BACKSPACE;
io.KeyMap[ImGuiKey_Space] = SDL_SCANCODE_SPACE;
io.KeyMap[ImGuiKey_Enter] = SDL_SCANCODE_RETURN;
io.KeyMap[ImGuiKey_Escape] = SDL_SCANCODE_ESCAPE;
io.KeyMap[ImGuiKey_KeyPadEnter] = SDL_SCANCODE_KP_ENTER;
io.KeyMap[ImGuiKey_A] = SDL_SCANCODE_A;
io.KeyMap[ImGuiKey_C] = SDL_SCANCODE_C;
io.KeyMap[ImGuiKey_V] = SDL_SCANCODE_V;
io.KeyMap[ImGuiKey_X] = SDL_SCANCODE_X;
io.KeyMap[ImGuiKey_Y] = SDL_SCANCODE_Y;
io.KeyMap[ImGuiKey_Z] = SDL_SCANCODE_Z;
io.SetClipboardTextFn = ImGui_ImplSDL2_SetClipboardText;
io.GetClipboardTextFn = ImGui_ImplSDL2_GetClipboardText;
io.ClipboardUserData = NULL;
// Load mouse cursors
bd->MouseCursors[ImGuiMouseCursor_Arrow] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_ARROW);
bd->MouseCursors[ImGuiMouseCursor_TextInput] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_IBEAM);
bd->MouseCursors[ImGuiMouseCursor_ResizeAll] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZEALL);
bd->MouseCursors[ImGuiMouseCursor_ResizeNS] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENS);
bd->MouseCursors[ImGuiMouseCursor_ResizeEW] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZEWE);
bd->MouseCursors[ImGuiMouseCursor_ResizeNESW] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENESW);
bd->MouseCursors[ImGuiMouseCursor_ResizeNWSE] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENWSE);
bd->MouseCursors[ImGuiMouseCursor_Hand] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_HAND);
bd->MouseCursors[ImGuiMouseCursor_NotAllowed] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_NO);
// Our mouse update function expect PlatformHandle to be filled for the main viewport
ImGuiViewport* main_viewport = ImGui::GetMainViewport();
main_viewport->PlatformHandle = (void*)window;
#ifdef _WIN32
SDL_SysWMinfo info;
SDL_VERSION(&info.version);
if (SDL_GetWindowWMInfo(window, &info))
main_viewport->PlatformHandleRaw = info.info.win.window;
#endif
// Set SDL hint to receive mouse click events on window focus, otherwise SDL doesn't emit the event.
// Without this, when clicking to gain focus, our widgets wouldn't activate even though they showed as hovered.
// (This is unfortunately a global SDL setting, so enabling it might have a side-effect on your application.
// It is unlikely to make a difference, but if your app absolutely needs to ignore the initial on-focus click:
// you can ignore SDL_MOUSEBUTTONDOWN events coming right after a SDL_WINDOWEVENT_FOCUS_GAINED)
#if SDL_HAS_MOUSE_FOCUS_CLICKTHROUGH
SDL_SetHint(SDL_HINT_MOUSE_FOCUS_CLICKTHROUGH, "1");
#endif
// Update monitors
ImGui_ImplSDL2_UpdateMonitors();
// We need SDL_CaptureMouse(), SDL_GetGlobalMouseState() from SDL 2.0.4+ to support multiple viewports.
// We left the call to ImGui_ImplSDL2_InitPlatformInterface() outside of #ifdef to avoid unused-function warnings.
if ((io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable) && (io.BackendFlags & ImGuiBackendFlags_PlatformHasViewports))
ImGui_ImplSDL2_InitPlatformInterface(window, sdl_gl_context);
return true;
}
bool ImGui_ImplSDL2_InitForOpenGL(SDL_Window* window, void* sdl_gl_context)
{
return ImGui_ImplSDL2_Init(window, sdl_gl_context);
}
bool ImGui_ImplSDL2_InitForVulkan(SDL_Window* window)
{
#if !SDL_HAS_VULKAN
IM_ASSERT(0 && "Unsupported");
#endif
if (!ImGui_ImplSDL2_Init(window, NULL))
return false;
ImGui_ImplSDL2_Data* bd = ImGui_ImplSDL2_GetBackendData();
bd->UseVulkan = true;
return true;
}
bool ImGui_ImplSDL2_InitForD3D(SDL_Window* window)
{
#if !defined(_WIN32)
IM_ASSERT(0 && "Unsupported");
#endif
return ImGui_ImplSDL2_Init(window, NULL);
}
bool ImGui_ImplSDL2_InitForMetal(SDL_Window* window)
{
return ImGui_ImplSDL2_Init(window, NULL);
}
bool ImGui_ImplSDL2_InitForSDLRenderer(SDL_Window* window)
{
return ImGui_ImplSDL2_Init(window, NULL);
}
void ImGui_ImplSDL2_Shutdown()
{
ImGui_ImplSDL2_Data* bd = ImGui_ImplSDL2_GetBackendData();
IM_ASSERT(bd != NULL && "No platform backend to shutdown, or already shutdown?");
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplSDL2_ShutdownPlatformInterface();
if (bd->ClipboardTextData)
SDL_free(bd->ClipboardTextData);
for (ImGuiMouseCursor cursor_n = 0; cursor_n < ImGuiMouseCursor_COUNT; cursor_n++)
SDL_FreeCursor(bd->MouseCursors[cursor_n]);
io.BackendPlatformName = NULL;
io.BackendPlatformUserData = NULL;
IM_DELETE(bd);
}
// This code is incredibly messy because some of the functions we need for full viewport support are not available in SDL < 2.0.4.
static void ImGui_ImplSDL2_UpdateMousePosAndButtons()
{
ImGui_ImplSDL2_Data* bd = ImGui_ImplSDL2_GetBackendData();
ImGuiIO& io = ImGui::GetIO();
ImVec2 mouse_pos_prev = io.MousePos;
io.MousePos = ImVec2(-FLT_MAX, -FLT_MAX);
io.MouseHoveredViewport = 0;
// Update mouse buttons
int mouse_x_local, mouse_y_local;
Uint32 mouse_buttons = SDL_GetMouseState(&mouse_x_local, &mouse_y_local);
io.MouseDown[0] = bd->MousePressed[0] || (mouse_buttons & SDL_BUTTON(SDL_BUTTON_LEFT)) != 0; // If a mouse press event came, always pass it as "mouse held this frame", so we don't miss click-release events that are shorter than 1 frame.
io.MouseDown[1] = bd->MousePressed[1] || (mouse_buttons & SDL_BUTTON(SDL_BUTTON_RIGHT)) != 0;
io.MouseDown[2] = bd->MousePressed[2] || (mouse_buttons & SDL_BUTTON(SDL_BUTTON_MIDDLE)) != 0;
bd->MousePressed[0] = bd->MousePressed[1] = bd->MousePressed[2] = false;
// Obtain focused and hovered window. We forward mouse input when focused or when hovered (and no other window is capturing)
#if SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE
SDL_Window* focused_window = SDL_GetKeyboardFocus();
SDL_Window* hovered_window = SDL_HAS_MOUSE_FOCUS_CLICKTHROUGH ? SDL_GetMouseFocus() : NULL; // This is better but is only reliably useful with SDL 2.0.5+ and SDL_HINT_MOUSE_FOCUS_CLICKTHROUGH.
SDL_Window* mouse_window = NULL;
if (hovered_window && (bd->Window == hovered_window || ImGui::FindViewportByPlatformHandle((void*)hovered_window)))
mouse_window = hovered_window;
else if (focused_window && (bd->Window == focused_window || ImGui::FindViewportByPlatformHandle((void*)focused_window)))
mouse_window = focused_window;
// SDL_CaptureMouse() let the OS know e.g. that our imgui drag outside the SDL window boundaries shouldn't e.g. trigger other operations outside
SDL_CaptureMouse(ImGui::IsAnyMouseDown() ? SDL_TRUE : SDL_FALSE);
#else
// SDL 2.0.3 and non-windowed systems: single-viewport only
SDL_Window* mouse_window = (SDL_GetWindowFlags(bd->Window) & SDL_WINDOW_INPUT_FOCUS) ? bd->Window : NULL;
#endif
if (mouse_window == NULL)
return;
// Set OS mouse position from Dear ImGui if requested (rarely used, only when ImGuiConfigFlags_NavEnableSetMousePos is enabled by user)
if (io.WantSetMousePos)
{
#if SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE
if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
SDL_WarpMouseGlobal((int)mouse_pos_prev.x, (int)mouse_pos_prev.y);
else
#endif
SDL_WarpMouseInWindow(bd->Window, (int)mouse_pos_prev.x, (int)mouse_pos_prev.y);
}
// Set Dear ImGui mouse position from OS position + get buttons. (this is the common behavior)
if (bd->MouseCanUseGlobalState)
{
int mouse_x_global, mouse_y_global;
SDL_GetGlobalMouseState(&mouse_x_global, &mouse_y_global);
if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
{
// Multi-viewport mode: mouse position in OS absolute coordinates (io.MousePos is (0,0) when the mouse is on the upper-left of the primary monitor)
io.MousePos = ImVec2((float)mouse_x_global, (float)mouse_y_global);
}
else
{
// Single-viewport mode: mouse position in client window coordinates (io.MousePos is (0,0) when the mouse is on the upper-left corner of the app window)
// Unlike local position obtained earlier this will be valid when straying out of bounds.
int window_x, window_y;
SDL_GetWindowPosition(mouse_window, &window_x, &window_y);
io.MousePos = ImVec2((float)(mouse_x_global - window_x), (float)(mouse_y_global - window_y));
}
}
else
{
io.MousePos = ImVec2((float)mouse_x_local, (float)mouse_y_local);
}
}
static void ImGui_ImplSDL2_UpdateMouseCursor()
{
ImGuiIO& io = ImGui::GetIO();
if (io.ConfigFlags & ImGuiConfigFlags_NoMouseCursorChange)
return;
ImGui_ImplSDL2_Data* bd = ImGui_ImplSDL2_GetBackendData();
ImGuiMouseCursor imgui_cursor = ImGui::GetMouseCursor();
if (io.MouseDrawCursor || imgui_cursor == ImGuiMouseCursor_None)
{
// Hide OS mouse cursor if imgui is drawing it or if it wants no cursor
SDL_ShowCursor(SDL_FALSE);
}
else
{
// Show OS mouse cursor
SDL_SetCursor(bd->MouseCursors[imgui_cursor] ? bd->MouseCursors[imgui_cursor] : bd->MouseCursors[ImGuiMouseCursor_Arrow]);
SDL_ShowCursor(SDL_TRUE);
}
}
static void ImGui_ImplSDL2_UpdateGamepads()
{
ImGuiIO& io = ImGui::GetIO();
memset(io.NavInputs, 0, sizeof(io.NavInputs));
if ((io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) == 0)
return;
// Get gamepad
SDL_GameController* game_controller = SDL_GameControllerOpen(0);
if (!game_controller)
{
io.BackendFlags &= ~ImGuiBackendFlags_HasGamepad;
return;
}
// Update gamepad inputs
#define MAP_BUTTON(NAV_NO, BUTTON_NO) { io.NavInputs[NAV_NO] = (SDL_GameControllerGetButton(game_controller, BUTTON_NO) != 0) ? 1.0f : 0.0f; }
#define MAP_ANALOG(NAV_NO, AXIS_NO, V0, V1) { float vn = (float)(SDL_GameControllerGetAxis(game_controller, AXIS_NO) - V0) / (float)(V1 - V0); if (vn > 1.0f) vn = 1.0f; if (vn > 0.0f && io.NavInputs[NAV_NO] < vn) io.NavInputs[NAV_NO] = vn; }
const int thumb_dead_zone = 8000; // SDL_gamecontroller.h suggests using this value.
MAP_BUTTON(ImGuiNavInput_Activate, SDL_CONTROLLER_BUTTON_A); // Cross / A
MAP_BUTTON(ImGuiNavInput_Cancel, SDL_CONTROLLER_BUTTON_B); // Circle / B
MAP_BUTTON(ImGuiNavInput_Menu, SDL_CONTROLLER_BUTTON_X); // Square / X
MAP_BUTTON(ImGuiNavInput_Input, SDL_CONTROLLER_BUTTON_Y); // Triangle / Y
MAP_BUTTON(ImGuiNavInput_DpadLeft, SDL_CONTROLLER_BUTTON_DPAD_LEFT); // D-Pad Left
MAP_BUTTON(ImGuiNavInput_DpadRight, SDL_CONTROLLER_BUTTON_DPAD_RIGHT); // D-Pad Right
MAP_BUTTON(ImGuiNavInput_DpadUp, SDL_CONTROLLER_BUTTON_DPAD_UP); // D-Pad Up
MAP_BUTTON(ImGuiNavInput_DpadDown, SDL_CONTROLLER_BUTTON_DPAD_DOWN); // D-Pad Down
MAP_BUTTON(ImGuiNavInput_FocusPrev, SDL_CONTROLLER_BUTTON_LEFTSHOULDER); // L1 / LB
MAP_BUTTON(ImGuiNavInput_FocusNext, SDL_CONTROLLER_BUTTON_RIGHTSHOULDER); // R1 / RB
MAP_BUTTON(ImGuiNavInput_TweakSlow, SDL_CONTROLLER_BUTTON_LEFTSHOULDER); // L1 / LB
MAP_BUTTON(ImGuiNavInput_TweakFast, SDL_CONTROLLER_BUTTON_RIGHTSHOULDER); // R1 / RB
MAP_ANALOG(ImGuiNavInput_LStickLeft, SDL_CONTROLLER_AXIS_LEFTX, -thumb_dead_zone, -32768);
MAP_ANALOG(ImGuiNavInput_LStickRight, SDL_CONTROLLER_AXIS_LEFTX, +thumb_dead_zone, +32767);
MAP_ANALOG(ImGuiNavInput_LStickUp, SDL_CONTROLLER_AXIS_LEFTY, -thumb_dead_zone, -32767);
MAP_ANALOG(ImGuiNavInput_LStickDown, SDL_CONTROLLER_AXIS_LEFTY, +thumb_dead_zone, +32767);
io.BackendFlags |= ImGuiBackendFlags_HasGamepad;
#undef MAP_BUTTON
#undef MAP_ANALOG
}
// FIXME-PLATFORM: SDL doesn't have an event to notify the application of display/monitor changes
static void ImGui_ImplSDL2_UpdateMonitors()
{
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
platform_io.Monitors.resize(0);
int display_count = SDL_GetNumVideoDisplays();
for (int n = 0; n < display_count; n++)
{
// Warning: the validity of monitor DPI information on Windows depends on the application DPI awareness settings, which generally needs to be set in the manifest or at runtime.
ImGuiPlatformMonitor monitor;
SDL_Rect r;
SDL_GetDisplayBounds(n, &r);
monitor.MainPos = monitor.WorkPos = ImVec2((float)r.x, (float)r.y);
monitor.MainSize = monitor.WorkSize = ImVec2((float)r.w, (float)r.h);
#if SDL_HAS_USABLE_DISPLAY_BOUNDS
SDL_GetDisplayUsableBounds(n, &r);
monitor.WorkPos = ImVec2((float)r.x, (float)r.y);
monitor.WorkSize = ImVec2((float)r.w, (float)r.h);
#endif
#if SDL_HAS_PER_MONITOR_DPI
float dpi = 0.0f;
if (!SDL_GetDisplayDPI(n, &dpi, NULL, NULL))
monitor.DpiScale = dpi / 96.0f;
#endif
platform_io.Monitors.push_back(monitor);
}
}
void ImGui_ImplSDL2_NewFrame()
{
ImGui_ImplSDL2_Data* bd = ImGui_ImplSDL2_GetBackendData();
IM_ASSERT(bd != NULL && "Did you call ImGui_ImplSDL2_Init()?");
ImGuiIO& io = ImGui::GetIO();
// Setup display size (every frame to accommodate for window resizing)
int w, h;
int display_w, display_h;
SDL_GetWindowSize(bd->Window, &w, &h);
if (SDL_GetWindowFlags(bd->Window) & SDL_WINDOW_MINIMIZED)
w = h = 0;
SDL_GL_GetDrawableSize(bd->Window, &display_w, &display_h);
io.DisplaySize = ImVec2((float)w, (float)h);
if (w > 0 && h > 0)
io.DisplayFramebufferScale = ImVec2((float)display_w / w, (float)display_h / h);
// Setup time step (we don't use SDL_GetTicks() because it is using millisecond resolution)
static Uint64 frequency = SDL_GetPerformanceFrequency();
Uint64 current_time = SDL_GetPerformanceCounter();
io.DeltaTime = bd->Time > 0 ? (float)((double)(current_time - bd->Time) / frequency) : (float)(1.0f / 60.0f);
bd->Time = current_time;
ImGui_ImplSDL2_UpdateMousePosAndButtons();
ImGui_ImplSDL2_UpdateMouseCursor();
// Update game controllers (if enabled and available)
ImGui_ImplSDL2_UpdateGamepads();
}
//--------------------------------------------------------------------------------------------------------
// MULTI-VIEWPORT / PLATFORM INTERFACE SUPPORT
// This is an _advanced_ and _optional_ feature, allowing the backend to create and handle multiple viewports simultaneously.
// If you are new to dear imgui or creating a new binding for dear imgui, it is recommended that you completely ignore this section first..
//--------------------------------------------------------------------------------------------------------
// Helper structure we store in the void* RenderUserData field of each ImGuiViewport to easily retrieve our backend data.
struct ImGui_ImplSDL2_ViewportData
{
SDL_Window* Window;
Uint32 WindowID;
bool WindowOwned;
SDL_GLContext GLContext;
ImGui_ImplSDL2_ViewportData() { Window = NULL; WindowID = 0; WindowOwned = false; GLContext = NULL; }
~ImGui_ImplSDL2_ViewportData() { IM_ASSERT(Window == NULL && GLContext == NULL); }
};
static void ImGui_ImplSDL2_CreateWindow(ImGuiViewport* viewport)
{
ImGui_ImplSDL2_Data* bd = ImGui_ImplSDL2_GetBackendData();
ImGui_ImplSDL2_ViewportData* vd = IM_NEW(ImGui_ImplSDL2_ViewportData)();
viewport->PlatformUserData = vd;
ImGuiViewport* main_viewport = ImGui::GetMainViewport();
ImGui_ImplSDL2_ViewportData* main_viewport_data = (ImGui_ImplSDL2_ViewportData*)main_viewport->PlatformUserData;
// Share GL resources with main context
bool use_opengl = (main_viewport_data->GLContext != NULL);
SDL_GLContext backup_context = NULL;
if (use_opengl)
{
backup_context = SDL_GL_GetCurrentContext();
SDL_GL_SetAttribute(SDL_GL_SHARE_WITH_CURRENT_CONTEXT, 1);
SDL_GL_MakeCurrent(main_viewport_data->Window, main_viewport_data->GLContext);
}
Uint32 sdl_flags = 0;
sdl_flags |= use_opengl ? SDL_WINDOW_OPENGL : (bd->UseVulkan ? SDL_WINDOW_VULKAN : 0);
sdl_flags |= SDL_GetWindowFlags(bd->Window) & SDL_WINDOW_ALLOW_HIGHDPI;
sdl_flags |= SDL_WINDOW_HIDDEN;
sdl_flags |= (viewport->Flags & ImGuiViewportFlags_NoDecoration) ? SDL_WINDOW_BORDERLESS : 0;
sdl_flags |= (viewport->Flags & ImGuiViewportFlags_NoDecoration) ? 0 : SDL_WINDOW_RESIZABLE;
#if !defined(_WIN32)
// See SDL hack in ImGui_ImplSDL2_ShowWindow().
sdl_flags |= (viewport->Flags & ImGuiViewportFlags_NoTaskBarIcon) ? SDL_WINDOW_SKIP_TASKBAR : 0;
#endif
#if SDL_HAS_ALWAYS_ON_TOP
sdl_flags |= (viewport->Flags & ImGuiViewportFlags_TopMost) ? SDL_WINDOW_ALWAYS_ON_TOP : 0;
#endif
vd->Window = SDL_CreateWindow("No Title Yet", (int)viewport->Pos.x, (int)viewport->Pos.y, (int)viewport->Size.x, (int)viewport->Size.y, sdl_flags);
vd->WindowOwned = true;
if (use_opengl)
{
vd->GLContext = SDL_GL_CreateContext(vd->Window);
SDL_GL_SetSwapInterval(0);
}
if (use_opengl && backup_context)
SDL_GL_MakeCurrent(vd->Window, backup_context);
viewport->PlatformHandle = (void*)vd->Window;
#if defined(_WIN32)
SDL_SysWMinfo info;
SDL_VERSION(&info.version);
if (SDL_GetWindowWMInfo(vd->Window, &info))
viewport->PlatformHandleRaw = info.info.win.window;
#endif
}
static void ImGui_ImplSDL2_DestroyWindow(ImGuiViewport* viewport)
{
if (ImGui_ImplSDL2_ViewportData* vd = (ImGui_ImplSDL2_ViewportData*)viewport->PlatformUserData)
{
if (vd->GLContext && vd->WindowOwned)
SDL_GL_DeleteContext(vd->GLContext);
if (vd->Window && vd->WindowOwned)
SDL_DestroyWindow(vd->Window);
vd->GLContext = NULL;
vd->Window = NULL;
IM_DELETE(vd);
}
viewport->PlatformUserData = viewport->PlatformHandle = NULL;
}
static void ImGui_ImplSDL2_ShowWindow(ImGuiViewport* viewport)
{
ImGui_ImplSDL2_ViewportData* vd = (ImGui_ImplSDL2_ViewportData*)viewport->PlatformUserData;
#if defined(_WIN32)
HWND hwnd = (HWND)viewport->PlatformHandleRaw;
// SDL hack: Hide icon from task bar
// Note: SDL 2.0.6+ has a SDL_WINDOW_SKIP_TASKBAR flag which is supported under Windows but the way it create the window breaks our seamless transition.
if (viewport->Flags & ImGuiViewportFlags_NoTaskBarIcon)
{
LONG ex_style = ::GetWindowLong(hwnd, GWL_EXSTYLE);
ex_style &= ~WS_EX_APPWINDOW;
ex_style |= WS_EX_TOOLWINDOW;
::SetWindowLong(hwnd, GWL_EXSTYLE, ex_style);
}
// SDL hack: SDL always activate/focus windows :/
if (viewport->Flags & ImGuiViewportFlags_NoFocusOnAppearing)
{
::ShowWindow(hwnd, SW_SHOWNA);
return;
}
#endif
SDL_ShowWindow(vd->Window);
}
static ImVec2 ImGui_ImplSDL2_GetWindowPos(ImGuiViewport* viewport)
{
ImGui_ImplSDL2_ViewportData* vd = (ImGui_ImplSDL2_ViewportData*)viewport->PlatformUserData;
int x = 0, y = 0;
SDL_GetWindowPosition(vd->Window, &x, &y);
return ImVec2((float)x, (float)y);
}
static void ImGui_ImplSDL2_SetWindowPos(ImGuiViewport* viewport, ImVec2 pos)
{
ImGui_ImplSDL2_ViewportData* vd = (ImGui_ImplSDL2_ViewportData*)viewport->PlatformUserData;
SDL_SetWindowPosition(vd->Window, (int)pos.x, (int)pos.y);
}
static ImVec2 ImGui_ImplSDL2_GetWindowSize(ImGuiViewport* viewport)
{
ImGui_ImplSDL2_ViewportData* vd = (ImGui_ImplSDL2_ViewportData*)viewport->PlatformUserData;
int w = 0, h = 0;
SDL_GetWindowSize(vd->Window, &w, &h);
return ImVec2((float)w, (float)h);
}
static void ImGui_ImplSDL2_SetWindowSize(ImGuiViewport* viewport, ImVec2 size)
{
ImGui_ImplSDL2_ViewportData* vd = (ImGui_ImplSDL2_ViewportData*)viewport->PlatformUserData;
SDL_SetWindowSize(vd->Window, (int)size.x, (int)size.y);
}
static void ImGui_ImplSDL2_SetWindowTitle(ImGuiViewport* viewport, const char* title)
{
ImGui_ImplSDL2_ViewportData* vd = (ImGui_ImplSDL2_ViewportData*)viewport->PlatformUserData;
SDL_SetWindowTitle(vd->Window, title);
}
#if SDL_HAS_WINDOW_ALPHA
static void ImGui_ImplSDL2_SetWindowAlpha(ImGuiViewport* viewport, float alpha)
{
ImGui_ImplSDL2_ViewportData* vd = (ImGui_ImplSDL2_ViewportData*)viewport->PlatformUserData;
SDL_SetWindowOpacity(vd->Window, alpha);
}
#endif
static void ImGui_ImplSDL2_SetWindowFocus(ImGuiViewport* viewport)
{
ImGui_ImplSDL2_ViewportData* vd = (ImGui_ImplSDL2_ViewportData*)viewport->PlatformUserData;
SDL_RaiseWindow(vd->Window);
}
static bool ImGui_ImplSDL2_GetWindowFocus(ImGuiViewport* viewport)
{
ImGui_ImplSDL2_ViewportData* vd = (ImGui_ImplSDL2_ViewportData*)viewport->PlatformUserData;
return (SDL_GetWindowFlags(vd->Window) & SDL_WINDOW_INPUT_FOCUS) != 0;
}
static bool ImGui_ImplSDL2_GetWindowMinimized(ImGuiViewport* viewport)
{
ImGui_ImplSDL2_ViewportData* vd = (ImGui_ImplSDL2_ViewportData*)viewport->PlatformUserData;
return (SDL_GetWindowFlags(vd->Window) & SDL_WINDOW_MINIMIZED) != 0;
}
static void ImGui_ImplSDL2_RenderWindow(ImGuiViewport* viewport, void*)
{
ImGui_ImplSDL2_ViewportData* vd = (ImGui_ImplSDL2_ViewportData*)viewport->PlatformUserData;
if (vd->GLContext)
SDL_GL_MakeCurrent(vd->Window, vd->GLContext);
}
static void ImGui_ImplSDL2_SwapBuffers(ImGuiViewport* viewport, void*)
{
ImGui_ImplSDL2_ViewportData* vd = (ImGui_ImplSDL2_ViewportData*)viewport->PlatformUserData;
if (vd->GLContext)
{
SDL_GL_MakeCurrent(vd->Window, vd->GLContext);
SDL_GL_SwapWindow(vd->Window);
}
}
// Vulkan support (the Vulkan renderer needs to call a platform-side support function to create the surface)
// SDL is graceful enough to _not_ need <vulkan/vulkan.h> so we can safely include this.
#if SDL_HAS_VULKAN
#include <SDL_vulkan.h>
static int ImGui_ImplSDL2_CreateVkSurface(ImGuiViewport* viewport, ImU64 vk_instance, const void* vk_allocator, ImU64* out_vk_surface)
{
ImGui_ImplSDL2_ViewportData* vd = (ImGui_ImplSDL2_ViewportData*)viewport->PlatformUserData;
(void)vk_allocator;
SDL_bool ret = SDL_Vulkan_CreateSurface(vd->Window, (VkInstance)vk_instance, (VkSurfaceKHR*)out_vk_surface);
return ret ? 0 : 1; // ret ? VK_SUCCESS : VK_NOT_READY
}
#endif // SDL_HAS_VULKAN
static void ImGui_ImplSDL2_InitPlatformInterface(SDL_Window* window, void* sdl_gl_context)
{
// Register platform interface (will be coupled with a renderer interface)
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
platform_io.Platform_CreateWindow = ImGui_ImplSDL2_CreateWindow;
platform_io.Platform_DestroyWindow = ImGui_ImplSDL2_DestroyWindow;
platform_io.Platform_ShowWindow = ImGui_ImplSDL2_ShowWindow;
platform_io.Platform_SetWindowPos = ImGui_ImplSDL2_SetWindowPos;
platform_io.Platform_GetWindowPos = ImGui_ImplSDL2_GetWindowPos;
platform_io.Platform_SetWindowSize = ImGui_ImplSDL2_SetWindowSize;
platform_io.Platform_GetWindowSize = ImGui_ImplSDL2_GetWindowSize;
platform_io.Platform_SetWindowFocus = ImGui_ImplSDL2_SetWindowFocus;
platform_io.Platform_GetWindowFocus = ImGui_ImplSDL2_GetWindowFocus;
platform_io.Platform_GetWindowMinimized = ImGui_ImplSDL2_GetWindowMinimized;
platform_io.Platform_SetWindowTitle = ImGui_ImplSDL2_SetWindowTitle;
platform_io.Platform_RenderWindow = ImGui_ImplSDL2_RenderWindow;
platform_io.Platform_SwapBuffers = ImGui_ImplSDL2_SwapBuffers;
#if SDL_HAS_WINDOW_ALPHA
platform_io.Platform_SetWindowAlpha = ImGui_ImplSDL2_SetWindowAlpha;
#endif
#if SDL_HAS_VULKAN
platform_io.Platform_CreateVkSurface = ImGui_ImplSDL2_CreateVkSurface;
#endif
// Register main window handle (which is owned by the main application, not by us)
// This is mostly for simplicity and consistency, so that our code (e.g. mouse handling etc.) can use same logic for main and secondary viewports.
ImGuiViewport* main_viewport = ImGui::GetMainViewport();
ImGui_ImplSDL2_ViewportData* vd = IM_NEW(ImGui_ImplSDL2_ViewportData)();
vd->Window = window;
vd->WindowID = SDL_GetWindowID(window);
vd->WindowOwned = false;
vd->GLContext = sdl_gl_context;
main_viewport->PlatformUserData = vd;
main_viewport->PlatformHandle = vd->Window;
}
static void ImGui_ImplSDL2_ShutdownPlatformInterface()
{
ImGui::DestroyPlatformWindows();
}

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// dear imgui: Platform Backend for SDL2
// This needs to be used along with a Renderer (e.g. DirectX11, OpenGL3, Vulkan..)
// (Info: SDL2 is a cross-platform general purpose library for handling windows, inputs, graphics context creation, etc.)
// Implemented features:
// [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
// [X] Platform: Clipboard support.
// [X] Platform: Keyboard arrays indexed using SDL_SCANCODE_* codes, e.g. ImGui::IsKeyPressed(SDL_SCANCODE_SPACE).
// [X] Platform: Gamepad support. Enabled with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
// [X] Platform: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
// Missing features:
// [ ] Platform: SDL2 handling of IME under Windows appears to be broken and it explicitly disable the regular Windows IME. You can restore Windows IME by compiling SDL with SDL_DISABLE_WINDOWS_IME.
// [ ] Platform: Multi-viewport + Minimized windows seems to break mouse wheel events (at least under Windows).
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
#pragma once
#include "imgui.h" // IMGUI_IMPL_API
struct SDL_Window;
typedef union SDL_Event SDL_Event;
IMGUI_IMPL_API bool ImGui_ImplSDL2_InitForOpenGL(SDL_Window* window, void* sdl_gl_context);
IMGUI_IMPL_API bool ImGui_ImplSDL2_InitForVulkan(SDL_Window* window);
IMGUI_IMPL_API bool ImGui_ImplSDL2_InitForD3D(SDL_Window* window);
IMGUI_IMPL_API bool ImGui_ImplSDL2_InitForMetal(SDL_Window* window);
IMGUI_IMPL_API bool ImGui_ImplSDL2_InitForSDLRenderer(SDL_Window* window);
IMGUI_IMPL_API void ImGui_ImplSDL2_Shutdown();
IMGUI_IMPL_API void ImGui_ImplSDL2_NewFrame();
IMGUI_IMPL_API bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event);
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
static inline void ImGui_ImplSDL2_NewFrame(SDL_Window*) { ImGui_ImplSDL2_NewFrame(); } // 1.84: removed unnecessary parameter
#endif

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// dear imgui: Renderer Backend for SDL_Renderer
// (Requires: SDL 2.0.17+)
// Important to understand: SDL_Renderer is an _optional_ component of SDL. We do not recommend you use SDL_Renderer
// because it provide a rather limited API to the end-user. We provide this backend for the sake of completeness.
// For a multi-platform app consider using e.g. SDL+DirectX on Windows and SDL+OpenGL on Linux/OSX.
// Implemented features:
// [X] Renderer: User texture binding. Use 'SDL_Texture*' as ImTextureID. Read the FAQ about ImTextureID!
// Missing features:
// [ ] Renderer: Support for large meshes (64k+ vertices) with 16-bit indices.
// [ ] Renderer: Multi-viewport support (multiple windows).
// You can copy and use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// CHANGELOG
// 2021-10-06: Backup and restore modified ClipRect/Viewport.
// 2021-09-21: Initial version.
#include "imgui.h"
#include "imgui_impl_sdlrenderer.h"
#if defined(_MSC_VER) && _MSC_VER <= 1500 // MSVC 2008 or earlier
#include <stddef.h> // intptr_t
#else
#include <stdint.h> // intptr_t
#endif
// SDL
#include <SDL.h>
#if !SDL_VERSION_ATLEAST(2,0,17)
#error This backend requires SDL 2.0.17+ because of SDL_RenderGeometry() function
#endif
// SDL_Renderer data
struct ImGui_ImplSDLRenderer_Data
{
SDL_Renderer* SDLRenderer;
SDL_Texture* FontTexture;
ImGui_ImplSDLRenderer_Data() { memset(this, 0, sizeof(*this)); }
};
// Backend data stored in io.BackendRendererUserData to allow support for multiple Dear ImGui contexts
// It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts.
static ImGui_ImplSDLRenderer_Data* ImGui_ImplSDLRenderer_GetBackendData()
{
return ImGui::GetCurrentContext() ? (ImGui_ImplSDLRenderer_Data*)ImGui::GetIO().BackendRendererUserData : NULL;
}
// Functions
bool ImGui_ImplSDLRenderer_Init(SDL_Renderer* renderer)
{
ImGuiIO& io = ImGui::GetIO();
IM_ASSERT(io.BackendRendererUserData == NULL && "Already initialized a renderer backend!");
IM_ASSERT(renderer != NULL && "SDL_Renderer not initialized!");
// Setup backend capabilities flags
ImGui_ImplSDLRenderer_Data* bd = IM_NEW(ImGui_ImplSDLRenderer_Data)();
io.BackendRendererUserData = (void*)bd;
io.BackendRendererName = "imgui_impl_sdlrenderer";
bd->SDLRenderer = renderer;
return true;
}
void ImGui_ImplSDLRenderer_Shutdown()
{
ImGui_ImplSDLRenderer_Data* bd = ImGui_ImplSDLRenderer_GetBackendData();
IM_ASSERT(bd != NULL && "No renderer backend to shutdown, or already shutdown?");
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplSDLRenderer_DestroyDeviceObjects();
io.BackendRendererName = NULL;
io.BackendRendererUserData = NULL;
IM_DELETE(bd);
}
static void ImGui_ImplSDLRenderer_SetupRenderState()
{
ImGui_ImplSDLRenderer_Data* bd = ImGui_ImplSDLRenderer_GetBackendData();
// Clear out any viewports and cliprect set by the user
// FIXME: Technically speaking there are lots of other things we could backup/setup/restore during our render process.
SDL_RenderSetViewport(bd->SDLRenderer, NULL);
SDL_RenderSetClipRect(bd->SDLRenderer, NULL);
}
void ImGui_ImplSDLRenderer_NewFrame()
{
ImGui_ImplSDLRenderer_Data* bd = ImGui_ImplSDLRenderer_GetBackendData();
IM_ASSERT(bd != NULL && "Did you call ImGui_ImplSDLRenderer_Init()?");
if (!bd->FontTexture)
ImGui_ImplSDLRenderer_CreateDeviceObjects();
}
void ImGui_ImplSDLRenderer_RenderDrawData(ImDrawData* draw_data)
{
ImGui_ImplSDLRenderer_Data* bd = ImGui_ImplSDLRenderer_GetBackendData();
// If there's a scale factor set by the user, use that instead
// If the user has specified a scale factor to SDL_Renderer already via SDL_RenderSetScale(), SDL will scale whatever we pass
// to SDL_RenderGeometryRaw() by that scale factor. In that case we don't want to be also scaling it ourselves here.
float rsx = 1.0f;
float rsy = 1.0f;
SDL_RenderGetScale(bd->SDLRenderer, &rsx, &rsy);
ImVec2 render_scale;
render_scale.x = (rsx == 1.0f) ? draw_data->FramebufferScale.x : 1.0f;
render_scale.y = (rsy == 1.0f) ? draw_data->FramebufferScale.y : 1.0f;
// Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates)
int fb_width = (int)(draw_data->DisplaySize.x * render_scale.x);
int fb_height = (int)(draw_data->DisplaySize.y * render_scale.y);
if (fb_width == 0 || fb_height == 0)
return;
// Backup SDL_Renderer state that will be modified to restore it afterwards
struct BackupSDLRendererState
{
SDL_Rect Viewport;
bool ClipEnabled;
SDL_Rect ClipRect;
};
BackupSDLRendererState old = {};
old.ClipEnabled = SDL_RenderIsClipEnabled(bd->SDLRenderer);
SDL_RenderGetViewport(bd->SDLRenderer, &old.Viewport);
SDL_RenderGetClipRect(bd->SDLRenderer, &old.ClipRect);
// Will project scissor/clipping rectangles into framebuffer space
ImVec2 clip_off = draw_data->DisplayPos; // (0,0) unless using multi-viewports
ImVec2 clip_scale = render_scale;
// Render command lists
ImGui_ImplSDLRenderer_SetupRenderState();
for (int n = 0; n < draw_data->CmdListsCount; n++)
{
const ImDrawList* cmd_list = draw_data->CmdLists[n];
const ImDrawVert* vtx_buffer = cmd_list->VtxBuffer.Data;
const ImDrawIdx* idx_buffer = cmd_list->IdxBuffer.Data;
for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
{
const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i];
if (pcmd->UserCallback)
{
// User callback, registered via ImDrawList::AddCallback()
// (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
ImGui_ImplSDLRenderer_SetupRenderState();
else
pcmd->UserCallback(cmd_list, pcmd);
}
else
{
// Project scissor/clipping rectangles into framebuffer space
ImVec2 clip_min((pcmd->ClipRect.x - clip_off.x) * clip_scale.x, (pcmd->ClipRect.y - clip_off.y) * clip_scale.y);
ImVec2 clip_max((pcmd->ClipRect.z - clip_off.x) * clip_scale.x, (pcmd->ClipRect.w - clip_off.y) * clip_scale.y);
if (clip_min.x < 0.0f) { clip_min.x = 0.0f; }
if (clip_min.y < 0.0f) { clip_min.y = 0.0f; }
if (clip_max.x > fb_width) { clip_max.x = (float)fb_width; }
if (clip_max.y > fb_height) { clip_max.y = (float)fb_height; }
if (clip_max.x < clip_min.x || clip_max.y < clip_min.y)
continue;
SDL_Rect r = { (int)(clip_min.x), (int)(clip_min.y), (int)(clip_max.x - clip_min.x), (int)(clip_max.y - clip_min.y) };
SDL_RenderSetClipRect(bd->SDLRenderer, &r);
const float* xy = (const float*)((const char*)vtx_buffer + IM_OFFSETOF(ImDrawVert, pos));
const float* uv = (const float*)((const char*)vtx_buffer + IM_OFFSETOF(ImDrawVert, uv));
const int* color = (const int*)((const char*)vtx_buffer + IM_OFFSETOF(ImDrawVert, col));
// Bind texture, Draw
SDL_Texture* tex = (SDL_Texture*)pcmd->GetTexID();
SDL_RenderGeometryRaw(bd->SDLRenderer, tex,
xy, (int)sizeof(ImDrawVert),
color, (int)sizeof(ImDrawVert),
uv, (int)sizeof(ImDrawVert),
cmd_list->VtxBuffer.Size,
idx_buffer + pcmd->IdxOffset, pcmd->ElemCount, sizeof(ImDrawIdx));
}
}
}
// Restore modified SDL_Renderer state
SDL_RenderSetViewport(bd->SDLRenderer, &old.Viewport);
SDL_RenderSetClipRect(bd->SDLRenderer, old.ClipEnabled ? &old.ClipRect : NULL);
}
// Called by Init/NewFrame/Shutdown
bool ImGui_ImplSDLRenderer_CreateFontsTexture()
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplSDLRenderer_Data* bd = ImGui_ImplSDLRenderer_GetBackendData();
// Build texture atlas
unsigned char* pixels;
int width, height;
io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height); // Load as RGBA 32-bit (75% of the memory is wasted, but default font is so small) because it is more likely to be compatible with user's existing shaders. If your ImTextureId represent a higher-level concept than just a GL texture id, consider calling GetTexDataAsAlpha8() instead to save on GPU memory.
// Upload texture to graphics system
bd->FontTexture = SDL_CreateTexture(bd->SDLRenderer, SDL_PIXELFORMAT_RGBA32, SDL_TEXTUREACCESS_STATIC, width, height);
if (bd->FontTexture == NULL)
{
SDL_Log("error creating texture");
return false;
}
SDL_UpdateTexture(bd->FontTexture, NULL, pixels, 4 * width);
SDL_SetTextureBlendMode(bd->FontTexture, SDL_BLENDMODE_BLEND);
// Store our identifier
io.Fonts->SetTexID((ImTextureID)(intptr_t)bd->FontTexture);
return true;
}
void ImGui_ImplSDLRenderer_DestroyFontsTexture()
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplSDLRenderer_Data* bd = ImGui_ImplSDLRenderer_GetBackendData();
if (bd->FontTexture)
{
io.Fonts->SetTexID(0);
SDL_DestroyTexture(bd->FontTexture);
bd->FontTexture = NULL;
}
}
bool ImGui_ImplSDLRenderer_CreateDeviceObjects()
{
return ImGui_ImplSDLRenderer_CreateFontsTexture();
}
void ImGui_ImplSDLRenderer_DestroyDeviceObjects()
{
ImGui_ImplSDLRenderer_DestroyFontsTexture();
}

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// dear imgui: Renderer Backend for SDL_Renderer
// (Requires: SDL 2.0.17+)
// Important to understand: SDL_Renderer is an _optional_ component of SDL. We do not recommend you use SDL_Renderer
// because it provide a rather limited API to the end-user. We provide this backend for the sake of completeness.
// For a multi-platform app consider using e.g. SDL+DirectX on Windows and SDL+OpenGL on Linux/OSX.
// Implemented features:
// [X] Renderer: User texture binding. Use 'SDL_Texture*' as ImTextureID. Read the FAQ about ImTextureID!
// Missing features:
// [ ] Renderer: Support for large meshes (64k+ vertices) with 16-bit indices.
// [ ] Renderer: Multi-viewport support (multiple windows).
#pragma once
#include "imgui.h" // IMGUI_IMPL_API
struct SDL_Renderer;
IMGUI_IMPL_API bool ImGui_ImplSDLRenderer_Init(SDL_Renderer* renderer);
IMGUI_IMPL_API void ImGui_ImplSDLRenderer_Shutdown();
IMGUI_IMPL_API void ImGui_ImplSDLRenderer_NewFrame();
IMGUI_IMPL_API void ImGui_ImplSDLRenderer_RenderDrawData(ImDrawData* draw_data);
// Called by Init/NewFrame/Shutdown
IMGUI_IMPL_API bool ImGui_ImplSDLRenderer_CreateFontsTexture();
IMGUI_IMPL_API void ImGui_ImplSDLRenderer_DestroyFontsTexture();
IMGUI_IMPL_API bool ImGui_ImplSDLRenderer_CreateDeviceObjects();
IMGUI_IMPL_API void ImGui_ImplSDLRenderer_DestroyDeviceObjects();

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// dear imgui: Renderer Backend for Vulkan
// This needs to be used along with a Platform Backend (e.g. GLFW, SDL, Win32, custom..)
// Implemented features:
// [X] Renderer: Support for large meshes (64k+ vertices) with 16-bit indices.
// Missing features:
// [ ] Platform: Multi-viewport / platform windows.
// [ ] Renderer: User texture binding. Changes of ImTextureID aren't supported by this backend! See https://github.com/ocornut/imgui/pull/914
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// The aim of imgui_impl_vulkan.h/.cpp is to be usable in your engine without any modification.
// IF YOU FEEL YOU NEED TO MAKE ANY CHANGE TO THIS CODE, please share them and your feedback at https://github.com/ocornut/imgui/
// Important note to the reader who wish to integrate imgui_impl_vulkan.cpp/.h in their own engine/app.
// - Common ImGui_ImplVulkan_XXX functions and structures are used to interface with imgui_impl_vulkan.cpp/.h.
// You will use those if you want to use this rendering backend in your engine/app.
// - Helper ImGui_ImplVulkanH_XXX functions and structures are only used by this example (main.cpp) and by
// the backend itself (imgui_impl_vulkan.cpp), but should PROBABLY NOT be used by your own engine/app code.
// Read comments in imgui_impl_vulkan.h.
#pragma once
#include "imgui.h" // IMGUI_IMPL_API
// [Configuration] in order to use a custom Vulkan function loader:
// (1) You'll need to disable default Vulkan function prototypes.
// We provide a '#define IMGUI_IMPL_VULKAN_NO_PROTOTYPES' convenience configuration flag.
// In order to make sure this is visible from the imgui_impl_vulkan.cpp compilation unit:
// - Add '#define IMGUI_IMPL_VULKAN_NO_PROTOTYPES' in your imconfig.h file
// - Or as a compilation flag in your build system
// - Or uncomment here (not recommended because you'd be modifying imgui sources!)
// - Do not simply add it in a .cpp file!
// (2) Call ImGui_ImplVulkan_LoadFunctions() before ImGui_ImplVulkan_Init() with your custom function.
// If you have no idea what this is, leave it alone!
//#define IMGUI_IMPL_VULKAN_NO_PROTOTYPES
// Vulkan includes
#if defined(IMGUI_IMPL_VULKAN_NO_PROTOTYPES) && !defined(VK_NO_PROTOTYPES)
#define VK_NO_PROTOTYPES
#endif
#include <vulkan/vulkan.h>
// Initialization data, for ImGui_ImplVulkan_Init()
// [Please zero-clear before use!]
struct ImGui_ImplVulkan_InitInfo
{
VkInstance Instance;
VkPhysicalDevice PhysicalDevice;
VkDevice Device;
uint32_t QueueFamily;
VkQueue Queue;
VkPipelineCache PipelineCache;
VkDescriptorPool DescriptorPool;
uint32_t Subpass;
uint32_t MinImageCount; // >= 2
uint32_t ImageCount; // >= MinImageCount
VkSampleCountFlagBits MSAASamples; // >= VK_SAMPLE_COUNT_1_BIT
const VkAllocationCallbacks* Allocator;
void (*CheckVkResultFn)(VkResult err);
};
// Called by user code
IMGUI_IMPL_API bool ImGui_ImplVulkan_Init(ImGui_ImplVulkan_InitInfo* info, VkRenderPass render_pass);
IMGUI_IMPL_API void ImGui_ImplVulkan_Shutdown();
IMGUI_IMPL_API void ImGui_ImplVulkan_NewFrame();
IMGUI_IMPL_API void ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, VkCommandBuffer command_buffer, VkPipeline pipeline = VK_NULL_HANDLE);
IMGUI_IMPL_API bool ImGui_ImplVulkan_CreateFontsTexture(VkCommandBuffer command_buffer);
IMGUI_IMPL_API void ImGui_ImplVulkan_DestroyFontUploadObjects();
IMGUI_IMPL_API void ImGui_ImplVulkan_SetMinImageCount(uint32_t min_image_count); // To override MinImageCount after initialization (e.g. if swap chain is recreated)
// Optional: load Vulkan functions with a custom function loader
// This is only useful with IMGUI_IMPL_VULKAN_NO_PROTOTYPES / VK_NO_PROTOTYPES
IMGUI_IMPL_API bool ImGui_ImplVulkan_LoadFunctions(PFN_vkVoidFunction(*loader_func)(const char* function_name, void* user_data), void* user_data = NULL);
//-------------------------------------------------------------------------
// Internal / Miscellaneous Vulkan Helpers
// (Used by example's main.cpp. Used by multi-viewport features. PROBABLY NOT used by your own engine/app.)
//-------------------------------------------------------------------------
// You probably do NOT need to use or care about those functions.
// Those functions only exist because:
// 1) they facilitate the readability and maintenance of the multiple main.cpp examples files.
// 2) the multi-viewport / platform window implementation needs them internally.
// Generally we avoid exposing any kind of superfluous high-level helpers in the bindings,
// but it is too much code to duplicate everywhere so we exceptionally expose them.
//
// Your engine/app will likely _already_ have code to setup all that stuff (swap chain, render pass, frame buffers, etc.).
// You may read this code to learn about Vulkan, but it is recommended you use you own custom tailored code to do equivalent work.
// (The ImGui_ImplVulkanH_XXX functions do not interact with any of the state used by the regular ImGui_ImplVulkan_XXX functions)
//-------------------------------------------------------------------------
struct ImGui_ImplVulkanH_Frame;
struct ImGui_ImplVulkanH_Window;
// Helpers
IMGUI_IMPL_API void ImGui_ImplVulkanH_CreateOrResizeWindow(VkInstance instance, VkPhysicalDevice physical_device, VkDevice device, ImGui_ImplVulkanH_Window* wnd, uint32_t queue_family, const VkAllocationCallbacks* allocator, int w, int h, uint32_t min_image_count);
IMGUI_IMPL_API void ImGui_ImplVulkanH_DestroyWindow(VkInstance instance, VkDevice device, ImGui_ImplVulkanH_Window* wnd, const VkAllocationCallbacks* allocator);
IMGUI_IMPL_API VkSurfaceFormatKHR ImGui_ImplVulkanH_SelectSurfaceFormat(VkPhysicalDevice physical_device, VkSurfaceKHR surface, const VkFormat* request_formats, int request_formats_count, VkColorSpaceKHR request_color_space);
IMGUI_IMPL_API VkPresentModeKHR ImGui_ImplVulkanH_SelectPresentMode(VkPhysicalDevice physical_device, VkSurfaceKHR surface, const VkPresentModeKHR* request_modes, int request_modes_count);
IMGUI_IMPL_API int ImGui_ImplVulkanH_GetMinImageCountFromPresentMode(VkPresentModeKHR present_mode);
// Helper structure to hold the data needed by one rendering frame
// (Used by example's main.cpp. Used by multi-viewport features. Probably NOT used by your own engine/app.)
// [Please zero-clear before use!]
struct ImGui_ImplVulkanH_Frame
{
VkCommandPool CommandPool;
VkCommandBuffer CommandBuffer;
VkFence Fence;
VkImage Backbuffer;
VkImageView BackbufferView;
VkFramebuffer Framebuffer;
};
struct ImGui_ImplVulkanH_FrameSemaphores
{
VkSemaphore ImageAcquiredSemaphore;
VkSemaphore RenderCompleteSemaphore;
};
// Helper structure to hold the data needed by one rendering context into one OS window
// (Used by example's main.cpp. Used by multi-viewport features. Probably NOT used by your own engine/app.)
struct ImGui_ImplVulkanH_Window
{
int Width;
int Height;
VkSwapchainKHR Swapchain;
VkSurfaceKHR Surface;
VkSurfaceFormatKHR SurfaceFormat;
VkPresentModeKHR PresentMode;
VkRenderPass RenderPass;
VkPipeline Pipeline; // The window pipeline may uses a different VkRenderPass than the one passed in ImGui_ImplVulkan_InitInfo
bool ClearEnable;
VkClearValue ClearValue;
uint32_t FrameIndex; // Current frame being rendered to (0 <= FrameIndex < FrameInFlightCount)
uint32_t ImageCount; // Number of simultaneous in-flight frames (returned by vkGetSwapchainImagesKHR, usually derived from min_image_count)
uint32_t SemaphoreIndex; // Current set of swapchain wait semaphores we're using (needs to be distinct from per frame data)
ImGui_ImplVulkanH_Frame* Frames;
ImGui_ImplVulkanH_FrameSemaphores* FrameSemaphores;
ImGui_ImplVulkanH_Window()
{
memset(this, 0, sizeof(*this));
PresentMode = VK_PRESENT_MODE_MAX_ENUM_KHR;
ClearEnable = true;
}
};

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// dear imgui: Renderer for WebGPU
// This needs to be used along with a Platform Binding (e.g. GLFW)
// (Please note that WebGPU is currently experimental, will not run on non-beta browsers, and may break.)
// Implemented features:
// [X] Renderer: User texture binding. Use 'WGPUTextureView' as ImTextureID. Read the FAQ about ImTextureID!
// [X] Renderer: Support for large meshes (64k+ vertices) with 16-bit indices.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2021-08-24: Fix for latest specs.
// 2021-05-24: Add support for draw_data->FramebufferScale.
// 2021-05-19: Replaced direct access to ImDrawCmd::TextureId with a call to ImDrawCmd::GetTexID(). (will become a requirement)
// 2021-05-16: Update to latest WebGPU specs (compatible with Emscripten 2.0.20 and Chrome Canary 92).
// 2021-02-18: Change blending equation to preserve alpha in output buffer.
// 2021-01-28: Initial version.
#include "imgui.h"
#include "imgui_impl_wgpu.h"
#include <limits.h>
#include <webgpu/webgpu.h>
#define HAS_EMSCRIPTEN_VERSION(major, minor, tiny) (__EMSCRIPTEN_major__ > (major) || (__EMSCRIPTEN_major__ == (major) && __EMSCRIPTEN_minor__ > (minor)) || (__EMSCRIPTEN_major__ == (major) && __EMSCRIPTEN_minor__ == (minor) && __EMSCRIPTEN_tiny__ >= (tiny)))
#if defined(__EMSCRIPTEN__) && !HAS_EMSCRIPTEN_VERSION(2, 0, 20)
#error "Requires at least emscripten 2.0.20"
#endif
// Dear ImGui prototypes from imgui_internal.h
extern ImGuiID ImHashData(const void* data_p, size_t data_size, ImU32 seed = 0);
// WebGPU data
static WGPUDevice g_wgpuDevice = NULL;
static WGPUQueue g_defaultQueue = NULL;
static WGPUTextureFormat g_renderTargetFormat = WGPUTextureFormat_Undefined;
static WGPURenderPipeline g_pipelineState = NULL;
struct RenderResources
{
WGPUTexture FontTexture; // Font texture
WGPUTextureView FontTextureView; // Texture view for font texture
WGPUSampler Sampler; // Sampler for the font texture
WGPUBuffer Uniforms; // Shader uniforms
WGPUBindGroup CommonBindGroup; // Resources bind-group to bind the common resources to pipeline
ImGuiStorage ImageBindGroups; // Resources bind-group to bind the font/image resources to pipeline (this is a key->value map)
WGPUBindGroup ImageBindGroup; // Default font-resource of Dear ImGui
WGPUBindGroupLayout ImageBindGroupLayout; // Cache layout used for the image bind group. Avoids allocating unnecessary JS objects when working with WebASM
};
static RenderResources g_resources;
struct FrameResources
{
WGPUBuffer IndexBuffer;
WGPUBuffer VertexBuffer;
ImDrawIdx* IndexBufferHost;
ImDrawVert* VertexBufferHost;
int IndexBufferSize;
int VertexBufferSize;
};
static FrameResources* g_pFrameResources = NULL;
static unsigned int g_numFramesInFlight = 0;
static unsigned int g_frameIndex = UINT_MAX;
struct Uniforms
{
float MVP[4][4];
};
//-----------------------------------------------------------------------------
// SHADERS
//-----------------------------------------------------------------------------
// glsl_shader.vert, compiled with:
// # glslangValidator -V -x -o glsl_shader.vert.u32 glsl_shader.vert
/*
#version 450 core
layout(location = 0) in vec2 aPos;
layout(location = 1) in vec2 aUV;
layout(location = 2) in vec4 aColor;
layout(set=0, binding = 0) uniform transform { mat4 mvp; };
out gl_PerVertex { vec4 gl_Position; };
layout(location = 0) out struct { vec4 Color; vec2 UV; } Out;
void main()
{
Out.Color = aColor;
Out.UV = aUV;
gl_Position = mvp * vec4(aPos, 0, 1);
}
*/
static uint32_t __glsl_shader_vert_spv[] =
{
0x07230203,0x00010000,0x00080007,0x0000002c,0x00000000,0x00020011,0x00000001,0x0006000b,
0x00000001,0x4c534c47,0x6474732e,0x3035342e,0x00000000,0x0003000e,0x00000000,0x00000001,
0x000a000f,0x00000000,0x00000004,0x6e69616d,0x00000000,0x0000000b,0x0000000f,0x00000015,
0x0000001b,0x00000023,0x00030003,0x00000002,0x000001c2,0x00040005,0x00000004,0x6e69616d,
0x00000000,0x00030005,0x00000009,0x00000000,0x00050006,0x00000009,0x00000000,0x6f6c6f43,
0x00000072,0x00040006,0x00000009,0x00000001,0x00005655,0x00030005,0x0000000b,0x0074754f,
0x00040005,0x0000000f,0x6c6f4361,0x0000726f,0x00030005,0x00000015,0x00565561,0x00060005,
0x00000019,0x505f6c67,0x65567265,0x78657472,0x00000000,0x00060006,0x00000019,0x00000000,
0x505f6c67,0x7469736f,0x006e6f69,0x00030005,0x0000001b,0x00000000,0x00050005,0x0000001d,
0x6e617274,0x726f6673,0x0000006d,0x00040006,0x0000001d,0x00000000,0x0070766d,0x00030005,
0x0000001f,0x00000000,0x00040005,0x00000023,0x736f5061,0x00000000,0x00040047,0x0000000b,
0x0000001e,0x00000000,0x00040047,0x0000000f,0x0000001e,0x00000002,0x00040047,0x00000015,
0x0000001e,0x00000001,0x00050048,0x00000019,0x00000000,0x0000000b,0x00000000,0x00030047,
0x00000019,0x00000002,0x00040048,0x0000001d,0x00000000,0x00000005,0x00050048,0x0000001d,
0x00000000,0x00000023,0x00000000,0x00050048,0x0000001d,0x00000000,0x00000007,0x00000010,
0x00030047,0x0000001d,0x00000002,0x00040047,0x0000001f,0x00000022,0x00000000,0x00040047,
0x0000001f,0x00000021,0x00000000,0x00040047,0x00000023,0x0000001e,0x00000000,0x00020013,
0x00000002,0x00030021,0x00000003,0x00000002,0x00030016,0x00000006,0x00000020,0x00040017,
0x00000007,0x00000006,0x00000004,0x00040017,0x00000008,0x00000006,0x00000002,0x0004001e,
0x00000009,0x00000007,0x00000008,0x00040020,0x0000000a,0x00000003,0x00000009,0x0004003b,
0x0000000a,0x0000000b,0x00000003,0x00040015,0x0000000c,0x00000020,0x00000001,0x0004002b,
0x0000000c,0x0000000d,0x00000000,0x00040020,0x0000000e,0x00000001,0x00000007,0x0004003b,
0x0000000e,0x0000000f,0x00000001,0x00040020,0x00000011,0x00000003,0x00000007,0x0004002b,
0x0000000c,0x00000013,0x00000001,0x00040020,0x00000014,0x00000001,0x00000008,0x0004003b,
0x00000014,0x00000015,0x00000001,0x00040020,0x00000017,0x00000003,0x00000008,0x0003001e,
0x00000019,0x00000007,0x00040020,0x0000001a,0x00000003,0x00000019,0x0004003b,0x0000001a,
0x0000001b,0x00000003,0x00040018,0x0000001c,0x00000007,0x00000004,0x0003001e,0x0000001d,
0x0000001c,0x00040020,0x0000001e,0x00000002,0x0000001d,0x0004003b,0x0000001e,0x0000001f,
0x00000002,0x00040020,0x00000020,0x00000002,0x0000001c,0x0004003b,0x00000014,0x00000023,
0x00000001,0x0004002b,0x00000006,0x00000025,0x00000000,0x0004002b,0x00000006,0x00000026,
0x3f800000,0x00050036,0x00000002,0x00000004,0x00000000,0x00000003,0x000200f8,0x00000005,
0x0004003d,0x00000007,0x00000010,0x0000000f,0x00050041,0x00000011,0x00000012,0x0000000b,
0x0000000d,0x0003003e,0x00000012,0x00000010,0x0004003d,0x00000008,0x00000016,0x00000015,
0x00050041,0x00000017,0x00000018,0x0000000b,0x00000013,0x0003003e,0x00000018,0x00000016,
0x00050041,0x00000020,0x00000021,0x0000001f,0x0000000d,0x0004003d,0x0000001c,0x00000022,
0x00000021,0x0004003d,0x00000008,0x00000024,0x00000023,0x00050051,0x00000006,0x00000027,
0x00000024,0x00000000,0x00050051,0x00000006,0x00000028,0x00000024,0x00000001,0x00070050,
0x00000007,0x00000029,0x00000027,0x00000028,0x00000025,0x00000026,0x00050091,0x00000007,
0x0000002a,0x00000022,0x00000029,0x00050041,0x00000011,0x0000002b,0x0000001b,0x0000000d,
0x0003003e,0x0000002b,0x0000002a,0x000100fd,0x00010038
};
// glsl_shader.frag, compiled with:
// # glslangValidator -V -x -o glsl_shader.frag.u32 glsl_shader.frag
/*
#version 450 core
layout(location = 0) out vec4 fColor;
layout(set=0, binding=1) uniform sampler s;
layout(set=1, binding=0) uniform texture2D t;
layout(location = 0) in struct { vec4 Color; vec2 UV; } In;
void main()
{
fColor = In.Color * texture(sampler2D(t, s), In.UV.st);
}
*/
static uint32_t __glsl_shader_frag_spv[] =
{
0x07230203,0x00010000,0x00080007,0x00000023,0x00000000,0x00020011,0x00000001,0x0006000b,
0x00000001,0x4c534c47,0x6474732e,0x3035342e,0x00000000,0x0003000e,0x00000000,0x00000001,
0x0007000f,0x00000004,0x00000004,0x6e69616d,0x00000000,0x00000009,0x0000000d,0x00030010,
0x00000004,0x00000007,0x00030003,0x00000002,0x000001c2,0x00040005,0x00000004,0x6e69616d,
0x00000000,0x00040005,0x00000009,0x6c6f4366,0x0000726f,0x00030005,0x0000000b,0x00000000,
0x00050006,0x0000000b,0x00000000,0x6f6c6f43,0x00000072,0x00040006,0x0000000b,0x00000001,
0x00005655,0x00030005,0x0000000d,0x00006e49,0x00030005,0x00000015,0x00000074,0x00030005,
0x00000019,0x00000073,0x00040047,0x00000009,0x0000001e,0x00000000,0x00040047,0x0000000d,
0x0000001e,0x00000000,0x00040047,0x00000015,0x00000022,0x00000001,0x00040047,0x00000015,
0x00000021,0x00000000,0x00040047,0x00000019,0x00000022,0x00000000,0x00040047,0x00000019,
0x00000021,0x00000001,0x00020013,0x00000002,0x00030021,0x00000003,0x00000002,0x00030016,
0x00000006,0x00000020,0x00040017,0x00000007,0x00000006,0x00000004,0x00040020,0x00000008,
0x00000003,0x00000007,0x0004003b,0x00000008,0x00000009,0x00000003,0x00040017,0x0000000a,
0x00000006,0x00000002,0x0004001e,0x0000000b,0x00000007,0x0000000a,0x00040020,0x0000000c,
0x00000001,0x0000000b,0x0004003b,0x0000000c,0x0000000d,0x00000001,0x00040015,0x0000000e,
0x00000020,0x00000001,0x0004002b,0x0000000e,0x0000000f,0x00000000,0x00040020,0x00000010,
0x00000001,0x00000007,0x00090019,0x00000013,0x00000006,0x00000001,0x00000000,0x00000000,
0x00000000,0x00000001,0x00000000,0x00040020,0x00000014,0x00000000,0x00000013,0x0004003b,
0x00000014,0x00000015,0x00000000,0x0002001a,0x00000017,0x00040020,0x00000018,0x00000000,
0x00000017,0x0004003b,0x00000018,0x00000019,0x00000000,0x0003001b,0x0000001b,0x00000013,
0x0004002b,0x0000000e,0x0000001d,0x00000001,0x00040020,0x0000001e,0x00000001,0x0000000a,
0x00050036,0x00000002,0x00000004,0x00000000,0x00000003,0x000200f8,0x00000005,0x00050041,
0x00000010,0x00000011,0x0000000d,0x0000000f,0x0004003d,0x00000007,0x00000012,0x00000011,
0x0004003d,0x00000013,0x00000016,0x00000015,0x0004003d,0x00000017,0x0000001a,0x00000019,
0x00050056,0x0000001b,0x0000001c,0x00000016,0x0000001a,0x00050041,0x0000001e,0x0000001f,
0x0000000d,0x0000001d,0x0004003d,0x0000000a,0x00000020,0x0000001f,0x00050057,0x00000007,
0x00000021,0x0000001c,0x00000020,0x00050085,0x00000007,0x00000022,0x00000012,0x00000021,
0x0003003e,0x00000009,0x00000022,0x000100fd,0x00010038
};
static void SafeRelease(ImDrawIdx*& res)
{
if (res)
delete[] res;
res = NULL;
}
static void SafeRelease(ImDrawVert*& res)
{
if (res)
delete[] res;
res = NULL;
}
static void SafeRelease(WGPUBindGroupLayout& res)
{
if (res)
wgpuBindGroupLayoutRelease(res);
res = NULL;
}
static void SafeRelease(WGPUBindGroup& res)
{
if (res)
wgpuBindGroupRelease(res);
res = NULL;
}
static void SafeRelease(WGPUBuffer& res)
{
if (res)
wgpuBufferRelease(res);
res = NULL;
}
static void SafeRelease(WGPURenderPipeline& res)
{
if (res)
wgpuRenderPipelineRelease(res);
res = NULL;
}
static void SafeRelease(WGPUSampler& res)
{
if (res)
wgpuSamplerRelease(res);
res = NULL;
}
static void SafeRelease(WGPUShaderModule& res)
{
if (res)
wgpuShaderModuleRelease(res);
res = NULL;
}
static void SafeRelease(WGPUTextureView& res)
{
if (res)
wgpuTextureViewRelease(res);
res = NULL;
}
static void SafeRelease(WGPUTexture& res)
{
if (res)
wgpuTextureRelease(res);
res = NULL;
}
static void SafeRelease(RenderResources& res)
{
SafeRelease(res.FontTexture);
SafeRelease(res.FontTextureView);
SafeRelease(res.Sampler);
SafeRelease(res.Uniforms);
SafeRelease(res.CommonBindGroup);
SafeRelease(res.ImageBindGroup);
SafeRelease(res.ImageBindGroupLayout);
};
static void SafeRelease(FrameResources& res)
{
SafeRelease(res.IndexBuffer);
SafeRelease(res.VertexBuffer);
SafeRelease(res.IndexBufferHost);
SafeRelease(res.VertexBufferHost);
}
static WGPUProgrammableStageDescriptor ImGui_ImplWGPU_CreateShaderModule(uint32_t* binary_data, uint32_t binary_data_size)
{
WGPUShaderModuleSPIRVDescriptor spirv_desc = {};
spirv_desc.chain.sType = WGPUSType_ShaderModuleSPIRVDescriptor;
spirv_desc.codeSize = binary_data_size;
spirv_desc.code = binary_data;
WGPUShaderModuleDescriptor desc = {};
desc.nextInChain = reinterpret_cast<WGPUChainedStruct*>(&spirv_desc);
WGPUProgrammableStageDescriptor stage_desc = {};
stage_desc.module = wgpuDeviceCreateShaderModule(g_wgpuDevice, &desc);
stage_desc.entryPoint = "main";
return stage_desc;
}
static WGPUBindGroup ImGui_ImplWGPU_CreateImageBindGroup(WGPUBindGroupLayout layout, WGPUTextureView texture)
{
WGPUBindGroupEntry image_bg_entries[] = { { nullptr, 0, 0, 0, 0, 0, texture } };
WGPUBindGroupDescriptor image_bg_descriptor = {};
image_bg_descriptor.layout = layout;
image_bg_descriptor.entryCount = sizeof(image_bg_entries) / sizeof(WGPUBindGroupEntry);
image_bg_descriptor.entries = image_bg_entries;
return wgpuDeviceCreateBindGroup(g_wgpuDevice, &image_bg_descriptor);
}
static void ImGui_ImplWGPU_SetupRenderState(ImDrawData* draw_data, WGPURenderPassEncoder ctx, FrameResources* fr)
{
// Setup orthographic projection matrix into our constant buffer
// Our visible imgui space lies from draw_data->DisplayPos (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right).
{
float L = draw_data->DisplayPos.x;
float R = draw_data->DisplayPos.x + draw_data->DisplaySize.x;
float T = draw_data->DisplayPos.y;
float B = draw_data->DisplayPos.y + draw_data->DisplaySize.y;
float mvp[4][4] =
{
{ 2.0f/(R-L), 0.0f, 0.0f, 0.0f },
{ 0.0f, 2.0f/(T-B), 0.0f, 0.0f },
{ 0.0f, 0.0f, 0.5f, 0.0f },
{ (R+L)/(L-R), (T+B)/(B-T), 0.5f, 1.0f },
};
wgpuQueueWriteBuffer(g_defaultQueue, g_resources.Uniforms, 0, mvp, sizeof(mvp));
}
// Setup viewport
wgpuRenderPassEncoderSetViewport(ctx, 0, 0, draw_data->FramebufferScale.x * draw_data->DisplaySize.x, draw_data->FramebufferScale.y * draw_data->DisplaySize.y, 0, 1);
// Bind shader and vertex buffers
wgpuRenderPassEncoderSetVertexBuffer(ctx, 0, fr->VertexBuffer, 0, 0);
wgpuRenderPassEncoderSetIndexBuffer(ctx, fr->IndexBuffer, sizeof(ImDrawIdx) == 2 ? WGPUIndexFormat_Uint16 : WGPUIndexFormat_Uint32, 0, 0);
wgpuRenderPassEncoderSetPipeline(ctx, g_pipelineState);
wgpuRenderPassEncoderSetBindGroup(ctx, 0, g_resources.CommonBindGroup, 0, NULL);
// Setup blend factor
WGPUColor blend_color = { 0.f, 0.f, 0.f, 0.f };
wgpuRenderPassEncoderSetBlendConstant(ctx, &blend_color);
}
// Render function
// (this used to be set in io.RenderDrawListsFn and called by ImGui::Render(), but you can now call this directly from your main loop)
void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURenderPassEncoder pass_encoder)
{
// Avoid rendering when minimized
if (draw_data->DisplaySize.x <= 0.0f || draw_data->DisplaySize.y <= 0.0f)
return;
// FIXME: Assuming that this only gets called once per frame!
// If not, we can't just re-allocate the IB or VB, we'll have to do a proper allocator.
g_frameIndex = g_frameIndex + 1;
FrameResources* fr = &g_pFrameResources[g_frameIndex % g_numFramesInFlight];
// Create and grow vertex/index buffers if needed
if (fr->VertexBuffer == NULL || fr->VertexBufferSize < draw_data->TotalVtxCount)
{
if (fr->VertexBuffer)
{
wgpuBufferDestroy(fr->VertexBuffer);
wgpuBufferRelease(fr->VertexBuffer);
}
SafeRelease(fr->VertexBufferHost);
fr->VertexBufferSize = draw_data->TotalVtxCount + 5000;
WGPUBufferDescriptor vb_desc =
{
NULL,
"Dear ImGui Vertex buffer",
WGPUBufferUsage_CopyDst | WGPUBufferUsage_Vertex,
fr->VertexBufferSize * sizeof(ImDrawVert),
false
};
fr->VertexBuffer = wgpuDeviceCreateBuffer(g_wgpuDevice, &vb_desc);
if (!fr->VertexBuffer)
return;
fr->VertexBufferHost = new ImDrawVert[fr->VertexBufferSize];
}
if (fr->IndexBuffer == NULL || fr->IndexBufferSize < draw_data->TotalIdxCount)
{
if (fr->IndexBuffer)
{
wgpuBufferDestroy(fr->IndexBuffer);
wgpuBufferRelease(fr->IndexBuffer);
}
SafeRelease(fr->IndexBufferHost);
fr->IndexBufferSize = draw_data->TotalIdxCount + 10000;
WGPUBufferDescriptor ib_desc =
{
NULL,
"Dear ImGui Index buffer",
WGPUBufferUsage_CopyDst | WGPUBufferUsage_Index,
fr->IndexBufferSize * sizeof(ImDrawIdx),
false
};
fr->IndexBuffer = wgpuDeviceCreateBuffer(g_wgpuDevice, &ib_desc);
if (!fr->IndexBuffer)
return;
fr->IndexBufferHost = new ImDrawIdx[fr->IndexBufferSize];
}
// Upload vertex/index data into a single contiguous GPU buffer
ImDrawVert* vtx_dst = (ImDrawVert*)fr->VertexBufferHost;
ImDrawIdx* idx_dst = (ImDrawIdx*)fr->IndexBufferHost;
for (int n = 0; n < draw_data->CmdListsCount; n++)
{
const ImDrawList* cmd_list = draw_data->CmdLists[n];
memcpy(vtx_dst, cmd_list->VtxBuffer.Data, cmd_list->VtxBuffer.Size * sizeof(ImDrawVert));
memcpy(idx_dst, cmd_list->IdxBuffer.Data, cmd_list->IdxBuffer.Size * sizeof(ImDrawIdx));
vtx_dst += cmd_list->VtxBuffer.Size;
idx_dst += cmd_list->IdxBuffer.Size;
}
int64_t vb_write_size = ((char*)vtx_dst - (char*)fr->VertexBufferHost + 3) & ~3;
int64_t ib_write_size = ((char*)idx_dst - (char*)fr->IndexBufferHost + 3) & ~3;
wgpuQueueWriteBuffer(g_defaultQueue, fr->VertexBuffer, 0, fr->VertexBufferHost, vb_write_size);
wgpuQueueWriteBuffer(g_defaultQueue, fr->IndexBuffer, 0, fr->IndexBufferHost, ib_write_size);
// Setup desired render state
ImGui_ImplWGPU_SetupRenderState(draw_data, pass_encoder, fr);
// Render command lists
// (Because we merged all buffers into a single one, we maintain our own offset into them)
int global_vtx_offset = 0;
int global_idx_offset = 0;
ImVec2 clip_scale = draw_data->FramebufferScale;
ImVec2 clip_off = draw_data->DisplayPos;
for (int n = 0; n < draw_data->CmdListsCount; n++)
{
const ImDrawList* cmd_list = draw_data->CmdLists[n];
for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
{
const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i];
if (pcmd->UserCallback != NULL)
{
// User callback, registered via ImDrawList::AddCallback()
// (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
ImGui_ImplWGPU_SetupRenderState(draw_data, pass_encoder, fr);
else
pcmd->UserCallback(cmd_list, pcmd);
}
else
{
// Bind custom texture
ImTextureID tex_id = pcmd->GetTexID();
ImGuiID tex_id_hash = ImHashData(&tex_id, sizeof(tex_id));
auto bind_group = g_resources.ImageBindGroups.GetVoidPtr(tex_id_hash);
if (bind_group)
{
wgpuRenderPassEncoderSetBindGroup(pass_encoder, 1, (WGPUBindGroup)bind_group, 0, NULL);
}
else
{
WGPUBindGroup image_bind_group = ImGui_ImplWGPU_CreateImageBindGroup(g_resources.ImageBindGroupLayout, (WGPUTextureView)tex_id);
g_resources.ImageBindGroups.SetVoidPtr(tex_id_hash, image_bind_group);
wgpuRenderPassEncoderSetBindGroup(pass_encoder, 1, image_bind_group, 0, NULL);
}
// Project scissor/clipping rectangles into framebuffer space
ImVec2 clip_min((pcmd->ClipRect.x - clip_off.x) * clip_scale.x, (pcmd->ClipRect.y - clip_off.y) * clip_scale.y);
ImVec2 clip_max((pcmd->ClipRect.z - clip_off.x) * clip_scale.x, (pcmd->ClipRect.w - clip_off.y) * clip_scale.y);
if (clip_max.x < clip_min.x || clip_max.y < clip_min.y)
continue;
// Apply scissor/clipping rectangle, Draw
wgpuRenderPassEncoderSetScissorRect(pass_encoder, (uint32_t)clip_min.x, (uint32_t)clip_min.y, (uint32_t)(clip_max.x - clip_min.x), (uint32_t)(clip_max.y - clip_min.y));
wgpuRenderPassEncoderDrawIndexed(pass_encoder, pcmd->ElemCount, 1, pcmd->IdxOffset + global_idx_offset, pcmd->VtxOffset + global_vtx_offset, 0);
}
}
global_idx_offset += cmd_list->IdxBuffer.Size;
global_vtx_offset += cmd_list->VtxBuffer.Size;
}
}
static void ImGui_ImplWGPU_CreateFontsTexture()
{
// Build texture atlas
ImGuiIO& io = ImGui::GetIO();
unsigned char* pixels;
int width, height, size_pp;
io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height, &size_pp);
// Upload texture to graphics system
{
WGPUTextureDescriptor tex_desc = {};
tex_desc.label = "Dear ImGui Font Texture";
tex_desc.dimension = WGPUTextureDimension_2D;
tex_desc.size.width = width;
tex_desc.size.height = height;
tex_desc.size.depthOrArrayLayers = 1;
tex_desc.sampleCount = 1;
tex_desc.format = WGPUTextureFormat_RGBA8Unorm;
tex_desc.mipLevelCount = 1;
tex_desc.usage = WGPUTextureUsage_CopyDst | WGPUTextureUsage_TextureBinding;
g_resources.FontTexture = wgpuDeviceCreateTexture(g_wgpuDevice, &tex_desc);
WGPUTextureViewDescriptor tex_view_desc = {};
tex_view_desc.format = WGPUTextureFormat_RGBA8Unorm;
tex_view_desc.dimension = WGPUTextureViewDimension_2D;
tex_view_desc.baseMipLevel = 0;
tex_view_desc.mipLevelCount = 1;
tex_view_desc.baseArrayLayer = 0;
tex_view_desc.arrayLayerCount = 1;
tex_view_desc.aspect = WGPUTextureAspect_All;
g_resources.FontTextureView = wgpuTextureCreateView(g_resources.FontTexture, &tex_view_desc);
}
// Upload texture data
{
WGPUImageCopyTexture dst_view = {};
dst_view.texture = g_resources.FontTexture;
dst_view.mipLevel = 0;
dst_view.origin = { 0, 0, 0 };
dst_view.aspect = WGPUTextureAspect_All;
WGPUTextureDataLayout layout = {};
layout.offset = 0;
layout.bytesPerRow = width * size_pp;
layout.rowsPerImage = height;
WGPUExtent3D size = { (uint32_t)width, (uint32_t)height, 1 };
wgpuQueueWriteTexture(g_defaultQueue, &dst_view, pixels, (uint32_t)(width * size_pp * height), &layout, &size);
}
// Create the associated sampler
{
WGPUSamplerDescriptor sampler_desc = {};
sampler_desc.minFilter = WGPUFilterMode_Linear;
sampler_desc.magFilter = WGPUFilterMode_Linear;
sampler_desc.mipmapFilter = WGPUFilterMode_Linear;
sampler_desc.addressModeU = WGPUAddressMode_Repeat;
sampler_desc.addressModeV = WGPUAddressMode_Repeat;
sampler_desc.addressModeW = WGPUAddressMode_Repeat;
sampler_desc.maxAnisotropy = 1;
g_resources.Sampler = wgpuDeviceCreateSampler(g_wgpuDevice, &sampler_desc);
}
// Store our identifier
static_assert(sizeof(ImTextureID) >= sizeof(g_resources.FontTexture), "Can't pack descriptor handle into TexID, 32-bit not supported yet.");
io.Fonts->SetTexID((ImTextureID)g_resources.FontTextureView);
}
static void ImGui_ImplWGPU_CreateUniformBuffer()
{
WGPUBufferDescriptor ub_desc =
{
NULL,
"Dear ImGui Uniform buffer",
WGPUBufferUsage_CopyDst | WGPUBufferUsage_Uniform,
sizeof(Uniforms),
false
};
g_resources.Uniforms = wgpuDeviceCreateBuffer(g_wgpuDevice, &ub_desc);
}
bool ImGui_ImplWGPU_CreateDeviceObjects()
{
if (!g_wgpuDevice)
return false;
if (g_pipelineState)
ImGui_ImplWGPU_InvalidateDeviceObjects();
// Create render pipeline
WGPURenderPipelineDescriptor graphics_pipeline_desc = {};
graphics_pipeline_desc.primitive.topology = WGPUPrimitiveTopology_TriangleList;
graphics_pipeline_desc.primitive.stripIndexFormat = WGPUIndexFormat_Undefined;
graphics_pipeline_desc.primitive.frontFace = WGPUFrontFace_CW;
graphics_pipeline_desc.primitive.cullMode = WGPUCullMode_None;
graphics_pipeline_desc.multisample.count = 1;
graphics_pipeline_desc.multisample.mask = UINT_MAX;
graphics_pipeline_desc.multisample.alphaToCoverageEnabled = false;
graphics_pipeline_desc.layout = nullptr; // Use automatic layout generation
// Create the vertex shader
WGPUProgrammableStageDescriptor vertex_shader_desc = ImGui_ImplWGPU_CreateShaderModule(__glsl_shader_vert_spv, sizeof(__glsl_shader_vert_spv) / sizeof(uint32_t));
graphics_pipeline_desc.vertex.module = vertex_shader_desc.module;
graphics_pipeline_desc.vertex.entryPoint = vertex_shader_desc.entryPoint;
// Vertex input configuration
WGPUVertexAttribute attribute_desc[] =
{
{ WGPUVertexFormat_Float32x2, (uint64_t)IM_OFFSETOF(ImDrawVert, pos), 0 },
{ WGPUVertexFormat_Float32x2, (uint64_t)IM_OFFSETOF(ImDrawVert, uv), 1 },
{ WGPUVertexFormat_Unorm8x4, (uint64_t)IM_OFFSETOF(ImDrawVert, col), 2 },
};
WGPUVertexBufferLayout buffer_layouts[1];
buffer_layouts[0].arrayStride = sizeof(ImDrawVert);
buffer_layouts[0].stepMode = WGPUVertexStepMode_Vertex;
buffer_layouts[0].attributeCount = 3;
buffer_layouts[0].attributes = attribute_desc;
graphics_pipeline_desc.vertex.bufferCount = 1;
graphics_pipeline_desc.vertex.buffers = buffer_layouts;
// Create the pixel shader
WGPUProgrammableStageDescriptor pixel_shader_desc = ImGui_ImplWGPU_CreateShaderModule(__glsl_shader_frag_spv, sizeof(__glsl_shader_frag_spv) / sizeof(uint32_t));
// Create the blending setup
WGPUBlendState blend_state = {};
blend_state.alpha.operation = WGPUBlendOperation_Add;
blend_state.alpha.srcFactor = WGPUBlendFactor_One;
blend_state.alpha.dstFactor = WGPUBlendFactor_OneMinusSrcAlpha;
blend_state.color.operation = WGPUBlendOperation_Add;
blend_state.color.srcFactor = WGPUBlendFactor_SrcAlpha;
blend_state.color.dstFactor = WGPUBlendFactor_OneMinusSrcAlpha;
WGPUColorTargetState color_state = {};
color_state.format = g_renderTargetFormat;
color_state.blend = &blend_state;
color_state.writeMask = WGPUColorWriteMask_All;
WGPUFragmentState fragment_state = {};
fragment_state.module = pixel_shader_desc.module;
fragment_state.entryPoint = pixel_shader_desc.entryPoint;
fragment_state.targetCount = 1;
fragment_state.targets = &color_state;
graphics_pipeline_desc.fragment = &fragment_state;
// Create depth-stencil State
WGPUDepthStencilState depth_stencil_state = {};
depth_stencil_state.depthBias = 0;
depth_stencil_state.depthBiasClamp = 0;
depth_stencil_state.depthBiasSlopeScale = 0;
// Configure disabled depth-stencil state
graphics_pipeline_desc.depthStencil = nullptr;
g_pipelineState = wgpuDeviceCreateRenderPipeline(g_wgpuDevice, &graphics_pipeline_desc);
ImGui_ImplWGPU_CreateFontsTexture();
ImGui_ImplWGPU_CreateUniformBuffer();
// Create resource bind group
WGPUBindGroupLayout bg_layouts[2];
bg_layouts[0] = wgpuRenderPipelineGetBindGroupLayout(g_pipelineState, 0);
bg_layouts[1] = wgpuRenderPipelineGetBindGroupLayout(g_pipelineState, 1);
WGPUBindGroupEntry common_bg_entries[] =
{
{ nullptr, 0, g_resources.Uniforms, 0, sizeof(Uniforms), 0, 0 },
{ nullptr, 1, 0, 0, 0, g_resources.Sampler, 0 },
};
WGPUBindGroupDescriptor common_bg_descriptor = {};
common_bg_descriptor.layout = bg_layouts[0];
common_bg_descriptor.entryCount = sizeof(common_bg_entries) / sizeof(WGPUBindGroupEntry);
common_bg_descriptor.entries = common_bg_entries;
g_resources.CommonBindGroup = wgpuDeviceCreateBindGroup(g_wgpuDevice, &common_bg_descriptor);
WGPUBindGroup image_bind_group = ImGui_ImplWGPU_CreateImageBindGroup(bg_layouts[1], g_resources.FontTextureView);
g_resources.ImageBindGroup = image_bind_group;
g_resources.ImageBindGroupLayout = bg_layouts[1];
g_resources.ImageBindGroups.SetVoidPtr(ImHashData(&g_resources.FontTextureView, sizeof(ImTextureID)), image_bind_group);
SafeRelease(vertex_shader_desc.module);
SafeRelease(pixel_shader_desc.module);
SafeRelease(bg_layouts[0]);
return true;
}
void ImGui_ImplWGPU_InvalidateDeviceObjects()
{
if (!g_wgpuDevice)
return;
SafeRelease(g_pipelineState);
SafeRelease(g_resources);
ImGuiIO& io = ImGui::GetIO();
io.Fonts->SetTexID(NULL); // We copied g_pFontTextureView to io.Fonts->TexID so let's clear that as well.
for (unsigned int i = 0; i < g_numFramesInFlight; i++)
SafeRelease(g_pFrameResources[i]);
}
bool ImGui_ImplWGPU_Init(WGPUDevice device, int num_frames_in_flight, WGPUTextureFormat rt_format)
{
// Setup backend capabilities flags
ImGuiIO& io = ImGui::GetIO();
io.BackendRendererName = "imgui_impl_webgpu";
io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset; // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
g_wgpuDevice = device;
g_defaultQueue = wgpuDeviceGetQueue(g_wgpuDevice);
g_renderTargetFormat = rt_format;
g_pFrameResources = new FrameResources[num_frames_in_flight];
g_numFramesInFlight = num_frames_in_flight;
g_frameIndex = UINT_MAX;
g_resources.FontTexture = NULL;
g_resources.FontTextureView = NULL;
g_resources.Sampler = NULL;
g_resources.Uniforms = NULL;
g_resources.CommonBindGroup = NULL;
g_resources.ImageBindGroups.Data.reserve(100);
g_resources.ImageBindGroup = NULL;
g_resources.ImageBindGroupLayout = NULL;
// Create buffers with a default size (they will later be grown as needed)
for (int i = 0; i < num_frames_in_flight; i++)
{
FrameResources* fr = &g_pFrameResources[i];
fr->IndexBuffer = NULL;
fr->VertexBuffer = NULL;
fr->IndexBufferHost = NULL;
fr->VertexBufferHost = NULL;
fr->IndexBufferSize = 10000;
fr->VertexBufferSize = 5000;
}
return true;
}
void ImGui_ImplWGPU_Shutdown()
{
ImGui_ImplWGPU_InvalidateDeviceObjects();
delete[] g_pFrameResources;
g_pFrameResources = NULL;
wgpuQueueRelease(g_defaultQueue);
g_wgpuDevice = NULL;
g_numFramesInFlight = 0;
g_frameIndex = UINT_MAX;
}
void ImGui_ImplWGPU_NewFrame()
{
if (!g_pipelineState)
ImGui_ImplWGPU_CreateDeviceObjects();
}

25
samples/external/Imgui/imgui-docking/backends/imgui_impl_wgpu.h vendored Normal file
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// dear imgui: Renderer for WebGPU
// This needs to be used along with a Platform Binding (e.g. GLFW)
// (Please note that WebGPU is currently experimental, will not run on non-beta browsers, and may break.)
// Implemented features:
// [X] Renderer: User texture binding. Use 'WGPUTextureView' as ImTextureID. Read the FAQ about ImTextureID!
// [X] Renderer: Support for large meshes (64k+ vertices) with 16-bit indices.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
#pragma once
#include "imgui.h" // IMGUI_IMPL_API
#include <webgpu/webgpu.h>
IMGUI_IMPL_API bool ImGui_ImplWGPU_Init(WGPUDevice device, int num_frames_in_flight, WGPUTextureFormat rt_format);
IMGUI_IMPL_API void ImGui_ImplWGPU_Shutdown();
IMGUI_IMPL_API void ImGui_ImplWGPU_NewFrame();
IMGUI_IMPL_API void ImGui_ImplWGPU_RenderDrawData(ImDrawData* draw_data, WGPURenderPassEncoder pass_encoder);
// Use if you want to reset your rendering device without losing Dear ImGui state.
IMGUI_IMPL_API void ImGui_ImplWGPU_InvalidateDeviceObjects();
IMGUI_IMPL_API bool ImGui_ImplWGPU_CreateDeviceObjects();

1052
samples/external/Imgui/imgui-docking/backends/imgui_impl_win32.cpp vendored Normal file
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43
samples/external/Imgui/imgui-docking/backends/imgui_impl_win32.h vendored Normal file
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// dear imgui: Platform Backend for Windows (standard windows API for 32 and 64 bits applications)
// This needs to be used along with a Renderer (e.g. DirectX11, OpenGL3, Vulkan..)
// Implemented features:
// [X] Platform: Clipboard support (for Win32 this is actually part of core dear imgui)
// [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
// [X] Platform: Keyboard arrays indexed using VK_* Virtual Key Codes, e.g. ImGui::IsKeyPressed(VK_SPACE).
// [X] Platform: Gamepad support. Enabled with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
// [X] Platform: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable'.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
#pragma once
#include "imgui.h" // IMGUI_IMPL_API
IMGUI_IMPL_API bool ImGui_ImplWin32_Init(void* hwnd);
IMGUI_IMPL_API void ImGui_ImplWin32_Shutdown();
IMGUI_IMPL_API void ImGui_ImplWin32_NewFrame();
// Win32 message handler your application need to call.
// - Intentionally commented out in a '#if 0' block to avoid dragging dependencies on <windows.h> from this helper.
// - You should COPY the line below into your .cpp code to forward declare the function and then you can call it.
#if 0
extern IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
#endif
// DPI-related helpers (optional)
// - Use to enable DPI awareness without having to create an application manifest.
// - Your own app may already do this via a manifest or explicit calls. This is mostly useful for our examples/ apps.
// - In theory we could call simple functions from Windows SDK such as SetProcessDPIAware(), SetProcessDpiAwareness(), etc.
// but most of the functions provided by Microsoft require Windows 8.1/10+ SDK at compile time and Windows 8/10+ at runtime,
// neither we want to require the user to have. So we dynamically select and load those functions to avoid dependencies.
IMGUI_IMPL_API void ImGui_ImplWin32_EnableDpiAwareness();
IMGUI_IMPL_API float ImGui_ImplWin32_GetDpiScaleForHwnd(void* hwnd); // HWND hwnd
IMGUI_IMPL_API float ImGui_ImplWin32_GetDpiScaleForMonitor(void* monitor); // HMONITOR monitor
// Transparency related helpers (optional) [experimental]
// - Use to enable alpha compositing transparency with the desktop.
// - Use together with e.g. clearing your framebuffer with zero-alpha.
IMGUI_IMPL_API void ImGui_ImplWin32_EnableAlphaCompositing(void* hwnd); // HWND hwnd

6
samples/external/Imgui/imgui-docking/backends/vulkan/generate_spv.sh vendored Normal file
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#!/bin/bash
## -V: create SPIR-V binary
## -x: save binary output as text-based 32-bit hexadecimal numbers
## -o: output file
glslangValidator -V -x -o glsl_shader.frag.u32 glsl_shader.frag
glslangValidator -V -x -o glsl_shader.vert.u32 glsl_shader.vert

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