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ImageConvert.cpp
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ImageConvert.cpp
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/* ***** BEGIN LICENSE BLOCK *****
* This file is part of Natron <https://natrongithub.github.io/>,
* (C) 2018-2021 The Natron developers
* (C) 2013-2018 INRIA and Alexandre Gauthier-Foichat
*
* Natron is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Natron is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Natron. If not, see <http://www.gnu.org/licenses/gpl-2.0.html>
* ***** END LICENSE BLOCK ***** */
// ***** BEGIN PYTHON BLOCK *****
// from <https://docs.python.org/3/c-api/intro.html#include-files>:
// "Since Python may define some pre-processor definitions which affect the standard headers on some systems, you must include Python.h before any standard headers are included."
#include <Python.h>
// ***** END PYTHON BLOCK *****
#include "Image.h"
#include <algorithm> // min, max
#include <cassert>
#include <stdexcept>
#ifndef Q_MOC_RUN
GCC_DIAG_UNUSED_LOCAL_TYPEDEFS_OFF
#include <boost/math/special_functions/fpclassify.hpp>
GCC_DIAG_UNUSED_LOCAL_TYPEDEFS_ON
#endif
#include <QtCore/QDebug>
#include "Engine/AppManager.h"
#include "Engine/Lut.h"
NATRON_NAMESPACE_ENTER
///explicit template instantiations
template <>
float
Image::convertPixelDepth(unsigned char pix)
{
return Color::intToFloat<256>(pix);
}
template <>
unsigned short
Image::convertPixelDepth(unsigned char pix)
{
// 0x01 -> 0x0101, 0x02 -> 0x0202, ..., 0xff -> 0xffff
return (unsigned short)( (pix << 8) + pix );
}
template <>
unsigned char
Image::convertPixelDepth(unsigned char pix)
{
return pix;
}
template <>
unsigned char
Image::convertPixelDepth(unsigned short pix)
{
// the following is from ImageMagick's quantum.h
return (unsigned char)( ( (pix + 128UL) - ( (pix + 128UL) >> 8 ) ) >> 8 );
}
template <>
float
Image::convertPixelDepth(unsigned short pix)
{
return Color::intToFloat<65536>(pix);
}
template <>
unsigned short
Image::convertPixelDepth(unsigned short pix)
{
return pix;
}
template <>
unsigned char
Image::convertPixelDepth(float pix)
{
return (unsigned char)Color::floatToInt<256>(pix);
}
template <>
unsigned short
Image::convertPixelDepth(float pix)
{
return (unsigned short)Color::floatToInt<65536>(pix);
}
template <>
float
Image::convertPixelDepth(float pix)
{
return pix;
}
static const Color::Lut*
lutFromColorspace(ViewerColorSpaceEnum cs)
{
const Color::Lut* lut;
switch (cs) {
case eViewerColorSpaceSRGB:
lut = Color::LutManager::sRGBLut();
break;
case eViewerColorSpaceRec709:
lut = Color::LutManager::Rec709Lut();
break;
case eViewerColorSpaceLinear:
default:
lut = 0;
break;
}
if (lut) {
lut->validate();
}
return lut;
}
///Fast version when components are the same
template <typename SRCPIX, typename DSTPIX, int srcMaxValue, int dstMaxValue>
void
Image::convertToFormatInternal_sameComps(const RectI & renderWindow,
const Image & srcImg,
Image & dstImg,
ViewerColorSpaceEnum srcColorSpace,
ViewerColorSpaceEnum dstColorSpace,
bool copyBitmap)
{
const RectI & r = srcImg._bounds;
RectI intersection;
if ( !renderWindow.intersect(r, &intersection) ) {
return;
}
ImageBitDepthEnum dstDepth = dstImg.getBitDepth();
ImageBitDepthEnum srcDepth = srcImg.getBitDepth();
int nComp = (int)srcImg.getComponentsCount();
const Color::Lut* const srcLut_ = lutFromColorspace(srcColorSpace);
const Color::Lut* const dstLut_ = lutFromColorspace(dstColorSpace);
///no colorspace conversion applied when luts are the same
const Color::Lut* const srcLut = (srcLut_ == dstLut_) ? 0 : srcLut_;
const Color::Lut* const dstLut = (srcLut_ == dstLut_) ? 0 : dstLut_;
if ( intersection.isNull() ) {
return;
}
for (int y = 0; y < intersection.height(); ++y) {
// coverity[dont_call]
int start = rand() % intersection.width();
const SRCPIX* srcPixels = (const SRCPIX*)srcImg.pixelAt(intersection.x1 + start, intersection.y1 + y);
DSTPIX* dstPixels = (DSTPIX*)dstImg.pixelAt(intersection.x1 + start, intersection.y1 + y);
const SRCPIX* srcStart = srcPixels;
DSTPIX* dstStart = dstPixels;
for (int backward = 0; backward < 2; ++backward) {
int x = backward ? start - 1 : start;
int end = backward ? -1 : intersection.width();
unsigned error[3] = {
0x80, 0x80, 0x80
};
while ( x != end && x >= 0 && x < intersection.width() ) {
for (int k = 0; k < nComp; ++k) {
# ifdef DEBUG
assert( !(boost::math::isnan)(srcPixels[k]) ); // check for NaN
# endif
DSTPIX pix;
if ( (k == 3) || (!srcLut && !dstLut) ) {
pix = convertPixelDepth<SRCPIX, DSTPIX>(srcPixels[k]);
} else {
float pixFloat;
if (srcLut) {
if (srcDepth == eImageBitDepthByte) {
pixFloat = srcLut->fromColorSpaceUint8ToLinearFloatFast(srcPixels[k]);
} else if (srcDepth == eImageBitDepthShort) {
pixFloat = srcLut->fromColorSpaceUint16ToLinearFloatFast(srcPixels[k]);
} else {
pixFloat = srcLut->fromColorSpaceFloatToLinearFloat(srcPixels[k]);
}
} else {
pixFloat = convertPixelDepth<SRCPIX, float>(srcPixels[k]);
}
if (dstDepth == eImageBitDepthByte) {
///small increase in perf we use Luts. This should be anyway the most used case.
error[k] = (error[k] & 0xff) + ( dstLut ? dstLut->toColorSpaceUint8xxFromLinearFloatFast(pixFloat) :
Color::floatToInt<0xff01>(pixFloat) );
pix = error[k] >> 8;
} else if (dstDepth == eImageBitDepthShort) {
pix = dstLut ? dstLut->toColorSpaceUint16FromLinearFloatFast(pixFloat) :
convertPixelDepth<float, DSTPIX>(pixFloat);
} else {
if (dstLut) {
pixFloat = dstLut->toColorSpaceFloatFromLinearFloat(pixFloat);
}
pix = convertPixelDepth<float, DSTPIX>(pixFloat);
}
}
dstPixels[k] = pix;
# ifdef DEBUG
assert( !(boost::math::isnan)(dstPixels[k]) ); // check for NaN
# endif
}
if (backward) {
--x;
srcPixels -= nComp;
dstPixels -= nComp;
} else {
++x;
srcPixels += nComp;
dstPixels += nComp;
}
}
srcPixels = srcStart - nComp;
dstPixels = dstStart - nComp;
}
if (copyBitmap) {
dstImg.copyBitmapRowPortion(intersection.x1, intersection.x2, intersection.y1 + y, srcImg);
}
}
} // convertToFormatInternal_sameComps
template <typename SRCPIX, typename DSTPIX, int srcMaxValue, int dstMaxValue, int srcNComps, int dstNComps,
bool requiresUnpremult, bool useColorspaces>
void
Image::convertToFormatInternalForColorSpace(const RectI & renderWindow,
const Image & srcImg,
Image & dstImg,
bool copyBitmap,
bool useAlpha0,
ViewerColorSpaceEnum srcColorSpace,
ViewerColorSpaceEnum dstColorSpace,
int channelForAlpha)
{
/*
* If channelForAlpha is -1 the user wants to convert using the default
* If channelForAlpha >= 0 then the user wants a specific channel to convert from. This is used mainly when converting
* to Alpha images (masks) to know which channel to use for the mask.
*/
if (channelForAlpha != -1) {
switch (srcNComps) {
case 3:
//invalid value passed by the called
if (channelForAlpha > 2) {
channelForAlpha = -1;
}
break;
case 2:
//invalid value passed by the called
if (channelForAlpha > 1) {
channelForAlpha = -1;
}
default:
break;
}
} else {
switch (srcNComps) {
case 4:
channelForAlpha = 3;
break;
case 3:
case 1:
default:
//no alpha anyway
break;
}
}
///special case comp == alpha && channelForAlpha = -1 clear out the mask
if ( (dstNComps == 1) && (channelForAlpha == -1) ) {
DSTPIX* dstPixels = (DSTPIX*)dstImg.pixelAt(renderWindow.x1, renderWindow.y1);
int dstRowSize = dstImg._bounds.width() * dstNComps;
if (copyBitmap) {
dstImg.copyBitmapPortion(renderWindow, srcImg);
}
for (int y = 0; y < renderWindow.height();
++y, dstPixels += dstRowSize) {
std::fill(dstPixels, dstPixels + renderWindow.width() * dstNComps, 0.);
}
return;
}
const Color::Lut* const srcLut = useColorspaces ? lutFromColorspace( (ViewerColorSpaceEnum)srcColorSpace ) : 0;
const Color::Lut* const dstLut = useColorspaces ? lutFromColorspace( (ViewerColorSpaceEnum)dstColorSpace ) : 0;
for (int y = 0; y < renderWindow.height(); ++y) {
///Start of the line for error diffusion
// coverity[dont_call]
int start = rand() % renderWindow.width();
const SRCPIX* srcPixels = (const SRCPIX*)srcImg.pixelAt(renderWindow.x1 + start, renderWindow.y1 + y);
DSTPIX* dstPixels = (DSTPIX*)dstImg.pixelAt(renderWindow.x1 + start, renderWindow.y1 + y);
const SRCPIX* srcStart = srcPixels;
DSTPIX* dstStart = dstPixels;
for (int backward = 0; backward < 2; ++backward) {
///We do twice the loop, once from starting point to end and once from starting point - 1 to real start
int x = backward ? start - 1 : start;
//End is pointing to the first pixel outside the line a la stl
int end = backward ? -1 : renderWindow.width();
unsigned error[3] = {
0x80, 0x80, 0x80
};
while ( x != end && x >= 0 && x < renderWindow.width() ) {
if (dstNComps == 1) {
///If we're converting to alpha, we just have to handle pixel depth conversion
DSTPIX pix;
// convertPixelDepth is optimized when SRCPIX == DSTPIX
switch (srcNComps) {
case 4:
//channel for alpha must be valid
assert(channelForAlpha > -1 && channelForAlpha <= 3);
pix = convertPixelDepth<SRCPIX, DSTPIX>(srcPixels[channelForAlpha]);
break;
case 3:
// RGB is opaque, so no alpha, unless channelForAlpha is 0-2
pix = convertPixelDepth<SRCPIX, DSTPIX>(channelForAlpha == -1 ? 0. : srcPixels[channelForAlpha]);
break;
case 2:
// XY is opaque unless channelForAlpha is 0-1
pix = convertPixelDepth<SRCPIX, DSTPIX>(channelForAlpha == -1 ? 0. : srcPixels[channelForAlpha]);
break;
case 1:
// just copy alpha disregarding channelForAlpha
pix = convertPixelDepth<SRCPIX, DSTPIX>(*srcPixels);
break;
}
dstPixels[0] = pix;
# ifdef DEBUG
assert( !(boost::math::isnan)(dstPixels[0]) ); // check for NaN
# endif
} else { // if (dstNComps == 1) {
if (srcNComps == 1) {
DSTPIX pix = convertPixelDepth<SRCPIX, DSTPIX>(srcPixels[0]);
# ifdef DEBUG
assert( !(boost::math::isnan)(pix) ); // check for NaN
# endif
for (int k = 0; k < dstNComps; ++k) {
dstPixels[k] = pix;
}
} else {
///In this case we've XY, RGB or RGBA input and outputs
assert(srcNComps != dstNComps);
const bool unpremultChannel = ( //srcNComps == 4 && // test already done in convertToFormatInternalForDepth
//dstNComps == 3 && // test already done in convertToFormatInternalForDepth
requiresUnpremult);
///This is only set if unpremultChannel is true
float alphaForUnPremult;
if (unpremultChannel) {
alphaForUnPremult = convertPixelDepth<SRCPIX, float>(srcPixels[srcNComps - 1]);
} else {
alphaForUnPremult = 1.;
}
for (int k = 0; k < 3 && k < dstNComps; ++k) {
if (k >= srcNComps) { // e.g. srcNComps = 2 && dstNComps == 3 or 4
dstPixels[k] = 0;
continue;
}
SRCPIX sourcePixel = srcPixels[k];
DSTPIX pix;
if ( !useColorspaces || (!srcLut && !dstLut) ) {
if (dstMaxValue == 255) {
float pixFloat = convertPixelDepth<SRCPIX, float>(sourcePixel);
error[k] = (error[k] & 0xff) + Color::floatToInt<0xff01>(pixFloat);
pix = error[k] >> 8;
} else {
pix = convertPixelDepth<SRCPIX, DSTPIX>(sourcePixel);
}
} else {
///For RGB channels
float pixFloat;
///Unpremult before doing colorspace conversion from linear to X
if (unpremultChannel) {
pixFloat = convertPixelDepth<SRCPIX, float>(sourcePixel);
pixFloat = alphaForUnPremult == 0.f ? 0. : pixFloat / alphaForUnPremult;
if (srcLut) {
pixFloat = srcLut->fromColorSpaceFloatToLinearFloat(pixFloat);
}
} else if (srcLut) {
if (srcMaxValue == 255) {
pixFloat = srcLut->fromColorSpaceUint8ToLinearFloatFast(sourcePixel);
} else if (srcMaxValue == 65535) {
pixFloat = srcLut->fromColorSpaceUint16ToLinearFloatFast(sourcePixel);
} else {
pixFloat = srcLut->fromColorSpaceFloatToLinearFloat(sourcePixel);
}
} else {
pixFloat = convertPixelDepth<SRCPIX, float>(sourcePixel);
}
///Apply dst color-space
if (dstMaxValue == 255) {
assert(k < 3);
error[k] = (error[k] & 0xff) + ( dstLut ? dstLut->toColorSpaceUint8xxFromLinearFloatFast(pixFloat) :
Color::floatToInt<0xff01>(pixFloat) );
pix = error[k] >> 8;
} else if (dstMaxValue == 65535) {
pix = dstLut ? dstLut->toColorSpaceUint16FromLinearFloatFast(pixFloat) :
convertPixelDepth<float, DSTPIX>(pixFloat);
} else {
if (dstLut) {
pixFloat = dstLut->toColorSpaceFloatFromLinearFloat(pixFloat);
}
pix = convertPixelDepth<float, DSTPIX>(pixFloat);
}
} // if (!useColorspaces || (!srcLut && !dstLut)) {
dstPixels[k] = pix;
# ifdef DEBUG
assert( (boost::math::isnan)(srcPixels[k]) || !(boost::math::isnan)(dstPixels[k]) ); // check for NaN
# endif
} // for (int k = 0; k < k < 3 && k < dstNComps; ++k) {
if (dstNComps == 4) {
// For alpha channel, fill with 1, we reach here only if converting RGB-->RGBA or XY--->RGBA
dstPixels[3] = convertPixelDepth<float, DSTPIX>(useAlpha0 ? 0.f : 1.f);
}
} // if (srcNComps == 1) {
} // if (dstNComps == 1) {
if (backward) {
--x;
srcPixels -= srcNComps;
dstPixels -= dstNComps;
} else {
++x;
srcPixels += srcNComps;
dstPixels += dstNComps;
}
} // while ( x != end && x >= 0 && x < renderWindow.width() ) {
srcPixels = srcStart - srcNComps;
dstPixels = dstStart - dstNComps;
} // for (int backward = 0; backward < 2; ++backward) {
} // for (int y = 0; y < renderWindow.height(); ++y) {
if (copyBitmap) {
dstImg.copyBitmapPortion(renderWindow, srcImg);
}
} // Image::convertToFormatInternalForColorSpace
template <typename SRCPIX, typename DSTPIX, int srcMaxValue, int dstMaxValue, int srcNComps, int dstNComps,
bool requiresUnpremult>
void
Image::convertToFormatInternalForUnpremult(const RectI & renderWindow,
const Image & srcImg,
Image & dstImg,
ViewerColorSpaceEnum srcColorSpace,
ViewerColorSpaceEnum dstColorSpace,
bool useAlpha0,
bool copyBitmap,
int channelForAlpha)
{
if ( (srcColorSpace == eViewerColorSpaceLinear) && (dstColorSpace == eViewerColorSpaceLinear) ) {
convertToFormatInternalForColorSpace<SRCPIX, DSTPIX, srcMaxValue, dstMaxValue, srcNComps, dstNComps, requiresUnpremult, false>(renderWindow, srcImg, dstImg, copyBitmap, useAlpha0, srcColorSpace, dstColorSpace, channelForAlpha);
} else {
convertToFormatInternalForColorSpace<SRCPIX, DSTPIX, srcMaxValue, dstMaxValue, srcNComps, dstNComps, requiresUnpremult, true>(renderWindow, srcImg, dstImg, copyBitmap, useAlpha0, srcColorSpace, dstColorSpace, channelForAlpha);
}
}
template <typename SRCPIX, typename DSTPIX, int srcMaxValue, int dstMaxValue, int srcNComps, int dstNComps>
void
Image::convertToFormatInternal(const RectI & renderWindow,
const Image & srcImg,
Image & dstImg,
ViewerColorSpaceEnum srcColorSpace,
ViewerColorSpaceEnum dstColorSpace,
int channelForAlpha,
bool useAlpha0,
bool copyBitmap,
bool requiresUnpremult)
{
if (requiresUnpremult) {
convertToFormatInternalForUnpremult<SRCPIX, DSTPIX, srcMaxValue, dstMaxValue, srcNComps, dstNComps, true>(renderWindow, srcImg, dstImg, srcColorSpace, dstColorSpace, useAlpha0, copyBitmap, channelForAlpha);
} else {
convertToFormatInternalForUnpremult<SRCPIX, DSTPIX, srcMaxValue, dstMaxValue, srcNComps, dstNComps, false>(renderWindow, srcImg, dstImg, srcColorSpace, dstColorSpace, useAlpha0, copyBitmap, channelForAlpha);
}
}
template <typename SRCPIX, typename DSTPIX, int srcMaxValue, int dstMaxValue>
void
Image::convertToFormatInternalForDepth(const RectI & renderWindow,
const Image & srcImg,
Image & dstImg,
ViewerColorSpaceEnum srcColorSpace,
ViewerColorSpaceEnum dstColorSpace,
int channelForAlpha,
bool useAlpha0,
bool copyBitmap,
bool requiresUnpremult)
{
int dstNComp = dstImg.getComponents().getNumComponents();
int srcNComp = srcImg.getComponents().getNumComponents();
if (requiresUnpremult) {
// see convertToFormatInternalForColorSpace : it is only used in one case!
assert(srcNComp == 4 &&
dstNComp == 3);
}
switch (srcNComp) {
case 1:
switch (dstNComp) {
case 2:
convertToFormatInternal<SRCPIX, DSTPIX, srcMaxValue, dstMaxValue, 1, 2>(renderWindow, srcImg, dstImg,
srcColorSpace,
dstColorSpace,
channelForAlpha,
useAlpha0,
copyBitmap,
/*requiresUnpremult=*/ false);
break;
case 3:
convertToFormatInternal<SRCPIX, DSTPIX, srcMaxValue, dstMaxValue, 1, 3>(renderWindow, srcImg, dstImg,
srcColorSpace,
dstColorSpace,
channelForAlpha,
useAlpha0,
copyBitmap,
/*requiresUnpremult=*/ false);
break;
case 4:
convertToFormatInternal<SRCPIX, DSTPIX, srcMaxValue, dstMaxValue, 1, 4>(renderWindow, srcImg, dstImg,
srcColorSpace,
dstColorSpace,
channelForAlpha,
useAlpha0,
copyBitmap,
/*requiresUnpremult=*/ false);
break;
default:
assert(false);
break;
}
break;
case 2:
switch (dstNComp) {
case 1:
convertToFormatInternal<SRCPIX, DSTPIX, srcMaxValue, dstMaxValue, 2, 1>(renderWindow, srcImg, dstImg,
srcColorSpace,
dstColorSpace,
channelForAlpha,
useAlpha0,
copyBitmap,
/*requiresUnpremult=*/ false);
break;
case 3:
convertToFormatInternal<SRCPIX, DSTPIX, srcMaxValue, dstMaxValue, 2, 3>(renderWindow, srcImg, dstImg,
srcColorSpace,
dstColorSpace,
channelForAlpha,
useAlpha0,
copyBitmap,
/*requiresUnpremult=*/ false);
break;
case 4:
convertToFormatInternal<SRCPIX, DSTPIX, srcMaxValue, dstMaxValue, 2, 4>(renderWindow, srcImg, dstImg,
srcColorSpace,
dstColorSpace,
channelForAlpha,
useAlpha0,
copyBitmap,
/*requiresUnpremult=*/ false);
break;
default:
assert(false);
break;
}
break;
case 3:
switch (dstNComp) {
case 1:
convertToFormatInternal<SRCPIX, DSTPIX, srcMaxValue, dstMaxValue, 3, 1>(renderWindow, srcImg, dstImg,
srcColorSpace,
dstColorSpace,
channelForAlpha,
useAlpha0,
copyBitmap,
/*requiresUnpremult=*/ false);
break;
case 2:
convertToFormatInternal<SRCPIX, DSTPIX, srcMaxValue, dstMaxValue, 3, 2>(renderWindow, srcImg, dstImg,
srcColorSpace,
dstColorSpace,
channelForAlpha,
useAlpha0,
copyBitmap,
/*requiresUnpremult=*/ false);
break;
case 4:
convertToFormatInternal<SRCPIX, DSTPIX, srcMaxValue, dstMaxValue, 3, 4>(renderWindow, srcImg, dstImg,
srcColorSpace,
dstColorSpace,
channelForAlpha,
useAlpha0,
copyBitmap,
/*requiresUnpremult=*/ false);
break;
default:
assert(false);
break;
}
break;
case 4:
switch (dstNComp) {
case 1:
convertToFormatInternal<SRCPIX, DSTPIX, srcMaxValue, dstMaxValue, 4, 1>(renderWindow, srcImg, dstImg,
srcColorSpace,
dstColorSpace,
channelForAlpha,
useAlpha0,
copyBitmap,
/*requiresUnpremult=*/ false);
break;
case 2:
convertToFormatInternal<SRCPIX, DSTPIX, srcMaxValue, dstMaxValue, 4, 2>(renderWindow, srcImg, dstImg,
srcColorSpace,
dstColorSpace,
channelForAlpha,
useAlpha0,
copyBitmap,
/*requiresUnpremult=*/ false);
break;
case 3:
convertToFormatInternal<SRCPIX, DSTPIX, srcMaxValue, dstMaxValue, 4, 3>(renderWindow, srcImg, dstImg,
srcColorSpace,
dstColorSpace,
channelForAlpha,
useAlpha0,
copyBitmap,
requiresUnpremult); // only case where requiresUnpremult seems to be useful
break;
default:
assert(false);
break;
}
break;
default:
break;
} // switch
} // Image::convertToFormatInternalForDepth
void
Image::convertToFormatCommon(const RectI & renderWindow,
ViewerColorSpaceEnum srcColorSpace,
ViewerColorSpaceEnum dstColorSpace,
int channelForAlpha,
bool useAlpha0,
bool copyBitmap,
bool requiresUnpremult,
Image* dstImg) const
{
QWriteLocker k(&dstImg->_entryLock);
QReadLocker k2(&_entryLock);
assert( _bounds.contains(renderWindow) && dstImg->_bounds.contains(renderWindow) );
if ( dstImg->getComponents().getNumComponents() == getComponents().getNumComponents() ) {
switch ( dstImg->getBitDepth() ) {
case eImageBitDepthByte: {
switch ( getBitDepth() ) {
case eImageBitDepthByte:
///Same as a copy
convertToFormatInternal_sameComps<unsigned char, unsigned char, 255, 255>(renderWindow, *this, *dstImg,
srcColorSpace,
dstColorSpace, copyBitmap);
break;
case eImageBitDepthShort:
convertToFormatInternal_sameComps<unsigned short, unsigned char, 65535, 255>(renderWindow, *this, *dstImg,
srcColorSpace,
dstColorSpace, copyBitmap);
break;
case eImageBitDepthHalf:
break;
case eImageBitDepthFloat:
convertToFormatInternal_sameComps<float, unsigned char, 1, 255>(renderWindow, *this, *dstImg,
srcColorSpace,
dstColorSpace, copyBitmap);
break;
case eImageBitDepthNone:
break;
}
break;
}
case eImageBitDepthShort: {
switch ( getBitDepth() ) {
case eImageBitDepthByte:
convertToFormatInternal_sameComps<unsigned char, unsigned short, 255, 65535>(renderWindow, *this, *dstImg,
srcColorSpace,
dstColorSpace, copyBitmap);
break;
case eImageBitDepthShort:
///Same as a copy
convertToFormatInternal_sameComps<unsigned short, unsigned short, 65535, 65535>(renderWindow, *this, *dstImg,
srcColorSpace,
dstColorSpace, copyBitmap);
break;
case eImageBitDepthHalf:
break;
case eImageBitDepthFloat:
convertToFormatInternal_sameComps<float, unsigned short, 1, 65535>(renderWindow, *this, *dstImg,
srcColorSpace,
dstColorSpace, copyBitmap);
break;
case eImageBitDepthNone:
break;
}
break;
}
case eImageBitDepthHalf:
break;
case eImageBitDepthFloat: {
switch ( getBitDepth() ) {
case eImageBitDepthByte:
convertToFormatInternal_sameComps<unsigned char, float, 255, 1>(renderWindow, *this, *dstImg,
srcColorSpace,
dstColorSpace, copyBitmap);
break;
case eImageBitDepthShort:
convertToFormatInternal_sameComps<unsigned short, float, 65535, 1>(renderWindow, *this, *dstImg,
srcColorSpace,
dstColorSpace, copyBitmap);
break;
case eImageBitDepthHalf:
break;
case eImageBitDepthFloat:
///Same as a copy
convertToFormatInternal_sameComps<float, float, 1, 1>(renderWindow, *this, *dstImg,
srcColorSpace,
dstColorSpace, copyBitmap);
break;
case eImageBitDepthNone:
break;
}
break;
}
case eImageBitDepthNone:
break;
} // switch
} else {
switch ( dstImg->getBitDepth() ) {
case eImageBitDepthByte: {
switch ( getBitDepth() ) {
case eImageBitDepthByte:
convertToFormatInternalForDepth<unsigned char, unsigned char, 255, 255>(renderWindow, *this, *dstImg,
srcColorSpace,
dstColorSpace,
channelForAlpha,
useAlpha0,
copyBitmap, requiresUnpremult);
break;
case eImageBitDepthShort:
convertToFormatInternalForDepth<unsigned short, unsigned char, 65535, 255>(renderWindow, *this, *dstImg,
srcColorSpace,
dstColorSpace,
channelForAlpha,
useAlpha0,
copyBitmap, requiresUnpremult);
break;
case eImageBitDepthHalf:
break;
case eImageBitDepthFloat:
convertToFormatInternalForDepth<float, unsigned char, 1, 255>(renderWindow, *this, *dstImg,
srcColorSpace,
dstColorSpace,
channelForAlpha,
useAlpha0,
copyBitmap, requiresUnpremult);
break;
case eImageBitDepthNone:
break;
}
break;
}
case eImageBitDepthShort: {
switch ( getBitDepth() ) {
case eImageBitDepthByte:
convertToFormatInternalForDepth<unsigned char, unsigned short, 255, 65535>(renderWindow, *this, *dstImg,
srcColorSpace,
dstColorSpace,
channelForAlpha,
useAlpha0,
copyBitmap, requiresUnpremult);
break;
case eImageBitDepthShort:
convertToFormatInternalForDepth<unsigned short, unsigned short, 65535, 65535>(renderWindow, *this, *dstImg,
srcColorSpace,
dstColorSpace,
channelForAlpha,
useAlpha0,
copyBitmap, requiresUnpremult);
break;
case eImageBitDepthHalf:
break;
case eImageBitDepthFloat:
convertToFormatInternalForDepth<float, unsigned short, 1, 65535>(renderWindow, *this, *dstImg,
srcColorSpace,
dstColorSpace,
channelForAlpha,
useAlpha0,
copyBitmap, requiresUnpremult);
break;
case eImageBitDepthNone:
break;
}
break;
}
case eImageBitDepthHalf:
break;
case eImageBitDepthFloat: {
switch ( getBitDepth() ) {
case eImageBitDepthByte:
convertToFormatInternalForDepth<unsigned char, float, 255, 1>(renderWindow, *this, *dstImg,
srcColorSpace,
dstColorSpace,
channelForAlpha,
useAlpha0,
copyBitmap, requiresUnpremult);
break;
case eImageBitDepthShort:
convertToFormatInternalForDepth<unsigned short, float, 65535, 1>(renderWindow, *this, *dstImg,
srcColorSpace,
dstColorSpace,
channelForAlpha,
useAlpha0,
copyBitmap, requiresUnpremult);
break;
case eImageBitDepthHalf:
break;
case eImageBitDepthFloat:
convertToFormatInternalForDepth<float, float, 1, 1>(renderWindow, *this, *dstImg,
srcColorSpace,
dstColorSpace,
channelForAlpha,
useAlpha0,
copyBitmap, requiresUnpremult);
break;
case eImageBitDepthNone:
break;
}
break;
}
default:
break;
} // switch
}
} // Image::convertToFormatCommon
void
Image::convertToFormat(const RectI & renderWindow,
ViewerColorSpaceEnum srcColorSpace,
ViewerColorSpaceEnum dstColorSpace,
int channelForAlpha,
bool copyBitmap,
bool requiresUnpremult,
Image* dstImg) const
{
// OpenGL textures are always RGBA anyway
assert(getStorageMode() != eStorageModeGLTex);
convertToFormatCommon(renderWindow, srcColorSpace, dstColorSpace, channelForAlpha, false, copyBitmap, requiresUnpremult, dstImg);
} // convertToFormat
void
Image::convertToFormatAlpha0(const RectI & renderWindow,
ViewerColorSpaceEnum srcColorSpace,
ViewerColorSpaceEnum dstColorSpace,
int channelForAlpha,
bool copyBitmap,
bool requiresUnpremult,
Image* dstImg) const
{
assert(getStorageMode() != eStorageModeGLTex);
convertToFormatCommon(renderWindow, srcColorSpace, dstColorSpace, channelForAlpha, true, copyBitmap, requiresUnpremult, dstImg);
}
NATRON_NAMESPACE_EXIT