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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_MixBaseOperation.h"
MixBaseOperation::MixBaseOperation() : NodeOperation()
{
this->addInputSocket(COM_DT_VALUE);
this->addInputSocket(COM_DT_COLOR);
this->addInputSocket(COM_DT_COLOR);
this->addOutputSocket(COM_DT_COLOR);
this->inputValueOperation = NULL;
this->inputColor1Operation = NULL;
this->inputColor2Operation = NULL;
this->setUseValueAlphaMultiply(false);
}
void MixBaseOperation::initExecution()
{
this->inputValueOperation = this->getInputSocketReader(0);
this->inputColor1Operation = this->getInputSocketReader(1);
this->inputColor2Operation = this->getInputSocketReader(2);
}
void MixBaseOperation::executePixel(float *outputColor, float x, float y, PixelSampler sampler, MemoryBuffer *inputBuffers[])
{
float inputColor1[4];
float inputColor2[4];
float value;
inputValueOperation->read(&value, x, y, sampler, inputBuffers);
inputColor1Operation->read(&inputColor1[0], x, y, sampler, inputBuffers);
inputColor2Operation->read(&inputColor2[0], x, y, sampler, inputBuffers);
if (this->useValueAlphaMultiply()) {
value *= inputColor2[3];
}
float valuem = 1.0f - value;
outputColor[0] = valuem * (inputColor1[0]) + value * (inputColor2[0]);
outputColor[1] = valuem * (inputColor1[1]) + value * (inputColor2[1]);
outputColor[2] = valuem * (inputColor1[2]) + value * (inputColor2[2]);
outputColor[3] = inputColor1[3];
}
void MixBaseOperation::deinitExecution()
{
this->inputValueOperation = NULL;
this->inputColor1Operation = NULL;
this->inputColor2Operation = NULL;
}
void MixBaseOperation::determineResolution(unsigned int resolution[], unsigned int preferredResolution[])
{
InputSocket *socket;
unsigned int tempPreferredResolution[] = {0, 0};
unsigned int tempResolution[2];
socket = this->getInputSocket(1);
socket->determineResolution(tempResolution, tempPreferredResolution);
if ((tempResolution[0] != 0) && (tempResolution[1] != 0)) {
this->setResolutionInputSocketIndex(1);
}
else {
socket = this->getInputSocket(2);
tempPreferredResolution[0] = 0;
tempPreferredResolution[1] = 0;
socket->determineResolution(tempResolution, tempPreferredResolution);
if ((tempResolution[0] != 0) && (tempResolution[1] != 0)) {
this->setResolutionInputSocketIndex(2);
}
else {
this->setResolutionInputSocketIndex(0);
}
}
NodeOperation::determineResolution(resolution, preferredResolution);
}
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