mirror of
https://github.com/godotengine/godot.git
synced 2024-11-28 23:22:38 +00:00
129 lines
3.6 KiB
C++
129 lines
3.6 KiB
C++
/*
|
|
* Copyright 2015 The Etc2Comp Authors.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#include "EtcConfig.h"
|
|
#include "Etc.h"
|
|
#include "EtcFilter.h"
|
|
|
|
#include <string.h>
|
|
|
|
namespace Etc
|
|
{
|
|
// ----------------------------------------------------------------------------------------------------
|
|
// C-style inteface to the encoder
|
|
//
|
|
void Encode(float *a_pafSourceRGBA,
|
|
unsigned int a_uiSourceWidth,
|
|
unsigned int a_uiSourceHeight,
|
|
Image::Format a_format,
|
|
ErrorMetric a_eErrMetric,
|
|
float a_fEffort,
|
|
unsigned int a_uiJobs,
|
|
unsigned int a_uiMaxJobs,
|
|
unsigned char **a_ppaucEncodingBits,
|
|
unsigned int *a_puiEncodingBitsBytes,
|
|
unsigned int *a_puiExtendedWidth,
|
|
unsigned int *a_puiExtendedHeight,
|
|
int *a_piEncodingTime_ms, bool a_bVerboseOutput)
|
|
{
|
|
|
|
Image image(a_pafSourceRGBA, a_uiSourceWidth,
|
|
a_uiSourceHeight,
|
|
a_eErrMetric);
|
|
image.m_bVerboseOutput = a_bVerboseOutput;
|
|
image.Encode(a_format, a_eErrMetric, a_fEffort, a_uiJobs, a_uiMaxJobs);
|
|
|
|
*a_ppaucEncodingBits = image.GetEncodingBits();
|
|
*a_puiEncodingBitsBytes = image.GetEncodingBitsBytes();
|
|
*a_puiExtendedWidth = image.GetExtendedWidth();
|
|
*a_puiExtendedHeight = image.GetExtendedHeight();
|
|
*a_piEncodingTime_ms = image.GetEncodingTimeMs();
|
|
}
|
|
|
|
void EncodeMipmaps(float *a_pafSourceRGBA,
|
|
unsigned int a_uiSourceWidth,
|
|
unsigned int a_uiSourceHeight,
|
|
Image::Format a_format,
|
|
ErrorMetric a_eErrMetric,
|
|
float a_fEffort,
|
|
unsigned int a_uiJobs,
|
|
unsigned int a_uiMaxJobs,
|
|
unsigned int a_uiMaxMipmaps,
|
|
unsigned int a_uiMipFilterFlags,
|
|
RawImage* a_pMipmapImages,
|
|
int *a_piEncodingTime_ms,
|
|
bool a_bVerboseOutput)
|
|
{
|
|
auto mipWidth = a_uiSourceWidth;
|
|
auto mipHeight = a_uiSourceHeight;
|
|
int totalEncodingTime = 0;
|
|
for(unsigned int mip = 0; mip < a_uiMaxMipmaps && mipWidth >= 1 && mipHeight >= 1; mip++)
|
|
{
|
|
float* pImageData = nullptr;
|
|
float* pMipImage = nullptr;
|
|
|
|
if(mip == 0)
|
|
{
|
|
pImageData = a_pafSourceRGBA;
|
|
}
|
|
else
|
|
{
|
|
pMipImage = new float[mipWidth*mipHeight*4];
|
|
if(FilterTwoPass(a_pafSourceRGBA, a_uiSourceWidth, a_uiSourceHeight, pMipImage, mipWidth, mipHeight, a_uiMipFilterFlags, Etc::FilterLanczos3) )
|
|
{
|
|
pImageData = pMipImage;
|
|
}
|
|
}
|
|
|
|
if ( pImageData )
|
|
{
|
|
|
|
Image image(pImageData, mipWidth, mipHeight, a_eErrMetric);
|
|
|
|
image.m_bVerboseOutput = a_bVerboseOutput;
|
|
image.Encode(a_format, a_eErrMetric, a_fEffort, a_uiJobs, a_uiMaxJobs);
|
|
|
|
a_pMipmapImages[mip].paucEncodingBits = std::shared_ptr<unsigned char>(image.GetEncodingBits(), [](unsigned char *p) { delete[] p; });
|
|
a_pMipmapImages[mip].uiEncodingBitsBytes = image.GetEncodingBitsBytes();
|
|
a_pMipmapImages[mip].uiExtendedWidth = image.GetExtendedWidth();
|
|
a_pMipmapImages[mip].uiExtendedHeight = image.GetExtendedHeight();
|
|
|
|
totalEncodingTime += image.GetEncodingTimeMs();
|
|
}
|
|
|
|
if(pMipImage)
|
|
{
|
|
delete[] pMipImage;
|
|
}
|
|
|
|
if (!pImageData)
|
|
{
|
|
break;
|
|
}
|
|
|
|
mipWidth >>= 1;
|
|
mipHeight >>= 1;
|
|
}
|
|
|
|
*a_piEncodingTime_ms = totalEncodingTime;
|
|
}
|
|
|
|
|
|
// ----------------------------------------------------------------------------------------------------
|
|
//
|
|
|
|
}
|