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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_SplitOperation.h"
#include "BLI_listbase.h"
#include "BKE_image.h"
#include "BLI_utildefines.h"
#include "BLI_math_color.h"
#include "BLI_math_vector.h"
extern "C" {
# include "MEM_guardedalloc.h"
# include "IMB_imbuf.h"
# include "IMB_imbuf_types.h"
}
SplitOperation::SplitOperation() : NodeOperation()
{
this->addInputSocket(COM_DT_COLOR);
this->addInputSocket(COM_DT_COLOR);
this->addOutputSocket(COM_DT_COLOR);
this->m_image1Input = NULL;
this->m_image2Input = NULL;
}
void SplitOperation::initExecution()
{
// When initializing the tree during initial load the width and height can be zero.
this->m_image1Input = getInputSocketReader(0);
this->m_image2Input = getInputSocketReader(1);
}
void SplitOperation::deinitExecution()
{
this->m_image1Input = NULL;
this->m_image2Input = NULL;
}
void SplitOperation::executePixelSampled(float output[4], float x, float y, PixelSampler /*sampler*/)
{
int perc = this->m_xSplit ? this->m_splitPercentage * this->getWidth() / 100.0f : this->m_splitPercentage * this->getHeight() / 100.0f;
bool image1 = this->m_xSplit ? x > perc : y > perc;
if (image1) {
this->m_image1Input->readSampled(output, x, y, COM_PS_NEAREST);
}
else {
this->m_image2Input->readSampled(output, x, y, COM_PS_NEAREST);
}
}
void SplitOperation::determineResolution(unsigned int resolution[2], unsigned int preferredResolution[2])
{
unsigned int tempPreferredResolution[2] = {0, 0};
unsigned int tempResolution[2];
this->getInputSocket(0)->determineResolution(tempResolution, tempPreferredResolution);
this->setResolutionInputSocketIndex((tempResolution[0] && tempResolution[1]) ? 0 : 1);
NodeOperation::determineResolution(resolution, preferredResolution);
}
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