v0.6 Beta - NVIDIA GTC April 2021 Release
Update to v0.6 Beta
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156
samples/BatchEffectApp/BatchUtilities.cpp
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156
samples/BatchEffectApp/BatchUtilities.cpp
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/*###############################################################################
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#
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# Copyright (c) 2020 NVIDIA Corporation
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy of
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# this software and associated documentation files (the "Software"), to deal in
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# the Software without restriction, including without limitation the rights to
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# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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# the Software, and to permit persons to whom the Software is furnished to do so,
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# subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in all
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# copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#
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###############################################################################*/
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#include "BatchUtilities.h"
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/********************************************************************************
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* AllocateBatchBuffer
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********************************************************************************/
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NvCV_Status AllocateBatchBuffer(NvCVImage *im, unsigned batchSize, unsigned width, unsigned height, NvCVImage_PixelFormat format,
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NvCVImage_ComponentType type, unsigned layout, unsigned memSpace, unsigned alignment) {
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return NvCVImage_Alloc(im, width, height * batchSize, format, type, layout, memSpace, alignment);
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}
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/********************************************************************************
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* NthImage
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********************************************************************************/
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NvCVImage* NthImage(unsigned n, unsigned height, NvCVImage* full, NvCVImage* view) {
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unsigned y = height;
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if (NVCV_PLANAR & full->planar) { // if not any of the chunky formats
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if (NVCV_PLANAR == full->planar) y *= full->numComponents;
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else if (NVCV_YUV444 == full->pixelFormat) y *= 3;
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else if (NVCV_YUV422 == full->pixelFormat) y *= 2;
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else if (NVCV_YUV420 == full->pixelFormat) y = y * 3 / 2;
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else y = 0;
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}
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NvCVImage_InitView(view, full, 0, y * n, full->width, height);
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return view;
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}
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/********************************************************************************
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* ComputeImageBytes
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********************************************************************************/
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int ComputeImageBytes(const NvCVImage* im) {
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int imageBytes = im->pitch * (int)im->height; // Correct for all chunky formats
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if (NVCV_PLANAR & im->planar) { // if not any of the chunky formats
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if (NVCV_PLANAR == im->planar) imageBytes *= (int)im->numComponents;
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else if (NVCV_YUV422 == im->pixelFormat) imageBytes *= 2;
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else if (NVCV_YUV420 == im->pixelFormat) imageBytes = imageBytes * 3 / 2;
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else imageBytes = 0;
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}
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return imageBytes;
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}
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/********************************************************************************
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* TransferToNthImage
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********************************************************************************/
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NvCV_Status TransferToNthImage(
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unsigned n, const NvCVImage* src, NvCVImage* dstBatch, float scale, struct CUstream_st* stream, NvCVImage* tmp) {
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NvCVImage nth;
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return NvCVImage_Transfer(src, NthImage(n, src->height, dstBatch, &nth), scale, stream, tmp);
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}
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/********************************************************************************
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* TransferFromNthImage
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********************************************************************************/
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NvCV_Status TransferFromNthImage(
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unsigned n, const NvCVImage* srcBatch, NvCVImage* dst, float scale, struct CUstream_st* stream, NvCVImage* tmp) {
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NvCVImage nth;
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return NvCVImage_Transfer(NthImage(n, dst->height, const_cast<NvCVImage*>(srcBatch), &nth), dst, scale, stream, tmp);
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}
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/********************************************************************************
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* TransferToBatchImage
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* This illustrates the use of the pixel offset method, but the Nth image method could be used instead.
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********************************************************************************/
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NvCV_Status TransferToBatchImage(
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unsigned batchSize, const NvCVImage** srcArray, NvCVImage* dstBatch, float scale, struct CUstream_st* stream, NvCVImage* tmp) {
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NvCV_Status err = NVCV_SUCCESS;
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NvCVImage nth;
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(void)NthImage(0, (**srcArray).height, dstBatch, &nth);
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int nextDst = ComputeImageBytes(&nth);
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for (; batchSize--; ++srcArray, nth.pixels = (void*)((char*)nth.pixels + nextDst))
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if (NVCV_SUCCESS != (err = NvCVImage_Transfer(*srcArray, &nth, scale, stream, tmp)))
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break;
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return err;
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}
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/********************************************************************************
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* TransferFromBatchImage
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* This illustrates the use of the pixel offset method, but the Nth image method could be used instead.
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********************************************************************************/
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NvCV_Status TransferFromBatchImage(
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unsigned batchSize, const NvCVImage* srcBatch, NvCVImage** dstArray, float scale, struct CUstream_st* stream, NvCVImage* tmp) {
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NvCV_Status err = NVCV_SUCCESS;
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NvCVImage nth;
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(void)NthImage(0, (**dstArray).height, const_cast<NvCVImage*>(srcBatch), &nth);
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int nextSrc = ComputeImageBytes(&nth);
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for (; batchSize--; nth.pixels = (void*)((char*)nth.pixels + nextSrc), ++dstArray)
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if (NVCV_SUCCESS != (err = NvCVImage_Transfer(&nth, *dstArray, scale, stream, tmp)))
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break;
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return err;
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}
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/********************************************************************************
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* TransferBatchImage
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********************************************************************************/
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NvCV_Status TransferBatchImage(const NvCVImage *srcBatch, NvCVImage *dstBatch,
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unsigned imHeight, unsigned batchSize, float scale, struct CUstream_st *stream) {
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NvCV_Status err = NVCV_SUCCESS;
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NvCVImage tmp;
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if ((!(srcBatch->planar & NVCV_PLANAR) && !(dstBatch->planar & NVCV_PLANAR)) // both chunky
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|| (srcBatch->planar == NVCV_PLANAR && dstBatch->planar == NVCV_PLANAR && srcBatch->pixelFormat == dstBatch->pixelFormat)
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) { // This is a fast transfer
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err = NvCVImage_Transfer(srcBatch, dstBatch, scale, stream, &tmp);
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}
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else { // This is guaranteed to be safe for all transfers
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NvCVImage subSrc, subDst;
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int nextSrc, nextDst, n;
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NvCVImage_InitView(&subSrc, const_cast<NvCVImage*>(srcBatch), 0, 0, srcBatch->width, imHeight);
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NvCVImage_InitView(&subDst, dstBatch, 0, 0, dstBatch->width, imHeight);
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nextSrc = ComputeImageBytes(&subSrc);
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nextDst = ComputeImageBytes(&subDst);
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for (n = batchSize; n--; subSrc.pixels = (char*)subSrc.pixels + nextSrc,
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subDst.pixels = (char*)subDst.pixels + nextDst)
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if (NVCV_SUCCESS != (err = NvCVImage_Transfer(&subSrc, &subDst, scale, stream, &tmp)))
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break;
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}
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return err;
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}
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