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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_CombineChannelsOperation.h"
#include "BLI_utildefines.h"
CombineChannelsOperation::CombineChannelsOperation() : NodeOperation()
{
this->addInputSocket(COM_DT_VALUE);
this->addInputSocket(COM_DT_VALUE);
this->addInputSocket(COM_DT_VALUE);
this->addInputSocket(COM_DT_VALUE);
this->addOutputSocket(COM_DT_COLOR);
this->setResolutionInputSocketIndex(0);
this->m_inputChannel1Operation = NULL;
this->m_inputChannel2Operation = NULL;
this->m_inputChannel3Operation = NULL;
this->m_inputChannel4Operation = NULL;
}
bool CombineChannelsOperation::determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output)
{
rcti tempOutput;
bool first = true;
for (int i = 0 ; i < 4 ; i ++) {
NodeOperation * inputOperation = this->getInputOperation(i);
if (inputOperation->determineDependingAreaOfInterest(input, readOperation, &tempOutput)) {
if (first) {
output->xmin = tempOutput.xmin;
output->ymin = tempOutput.ymin;
output->xmax = tempOutput.xmax;
output->ymax = tempOutput.ymax;
first = false;
} else {
output->xmin = MIN2(output->xmin, tempOutput.xmin);
output->ymin = MIN2(output->ymin, tempOutput.ymin);
output->xmax = MAX2(output->xmax, tempOutput.xmax);
output->ymax = MAX2(output->ymax, tempOutput.ymax);
}
}
}
return !first;
}
void CombineChannelsOperation::initExecution()
{
this->m_inputChannel1Operation = this->getInputSocketReader(0);
this->m_inputChannel2Operation = this->getInputSocketReader(1);
this->m_inputChannel3Operation = this->getInputSocketReader(2);
this->m_inputChannel4Operation = this->getInputSocketReader(3);
}
void CombineChannelsOperation::deinitExecution()
{
this->m_inputChannel1Operation = NULL;
this->m_inputChannel2Operation = NULL;
this->m_inputChannel3Operation = NULL;
this->m_inputChannel4Operation = NULL;
}
void CombineChannelsOperation::executePixel(float *color, float x, float y, PixelSampler sampler)
{
float input[4];
/// @todo: remove if statements
if (this->m_inputChannel1Operation) {
this->m_inputChannel1Operation->read(input, x, y, sampler);
color[0] = input[0];
}
if (this->m_inputChannel2Operation) {
this->m_inputChannel2Operation->read(input, x, y, sampler);
color[1] = input[0];
}
if (this->m_inputChannel3Operation) {
this->m_inputChannel3Operation->read(input, x, y, sampler);
color[2] = input[0];
}
if (this->m_inputChannel4Operation) {
this->m_inputChannel4Operation->read(input, x, y, sampler);
color[3] = input[0];
}
}
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