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/*
* Copyright 2011, Blender Foundation.
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Contributor:
* Jeroen Bakker
* Monique Dewanchand
*/
#include "COM_ColorCurveOperation.h"
#ifdef __cplusplus
extern "C" {
#endif
#include "BKE_colortools.h"
#ifdef __cplusplus
}
#endif
ColorCurveOperation::ColorCurveOperation(): CurveBaseOperation() {
this->addInputSocket(COM_DT_VALUE);
this->addInputSocket(COM_DT_COLOR);
this->addInputSocket(COM_DT_COLOR);
this->addInputSocket(COM_DT_COLOR);
this->addOutputSocket(COM_DT_COLOR);
this->inputFacProgram = NULL;
this->inputImageProgram = NULL;
this->inputBlackProgram = NULL;
this->inputWhiteProgram = NULL;
this->setResolutionInputSocketIndex(1);
}
void ColorCurveOperation::initExecution() {
CurveBaseOperation::initExecution();
this->inputFacProgram = this->getInputSocketReader(0);
this->inputImageProgram = this->getInputSocketReader(1);
this->inputBlackProgram = this->getInputSocketReader(2);
this->inputWhiteProgram = this->getInputSocketReader(3);
curvemapping_premultiply(this->curveMapping, 0);
}
void ColorCurveOperation::executePixel(float* color, float x, float y, PixelSampler sampler, MemoryBuffer *inputBuffers[]) {
float black[4];
float white[4];
float fac[4];
float image[4];
this->inputBlackProgram->read(black, x, y, sampler, inputBuffers);
this->inputWhiteProgram->read(white, x, y, sampler, inputBuffers);
curvemapping_set_black_white(this->curveMapping, black, white);
this->inputFacProgram->read(fac, x, y, sampler, inputBuffers);
this->inputImageProgram->read(image, x, y, sampler, inputBuffers);
if (fac[0]>=1.0)
curvemapping_evaluate_premulRGBF(this->curveMapping, color, image);
else if (*fac<=0.0) {
color[0]= image[0];
color[1]= image[1];
color[2]= image[2];
}
else {
float col[4], mfac= 1.0f-*fac;
curvemapping_evaluate_premulRGBF(this->curveMapping, col, image);
color[0]= mfac*image[0] + *fac*col[0];
color[1]= mfac*image[1] + *fac*col[1];
color[2]= mfac*image[2] + *fac*col[2];
}
color[3]= image[3];
}
void ColorCurveOperation::deinitExecution() {
this->inputFacProgram = NULL;
this->inputImageProgram = NULL;
this->inputBlackProgram = NULL;
this->inputWhiteProgram = NULL;
curvemapping_premultiply(this->curveMapping, 1);
}
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