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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_GlareThresholdOperation.h"
#include "BLI_math.h"
GlareThresholdOperation::GlareThresholdOperation(): NodeOperation() {
this->addInputSocket(COM_DT_COLOR);
this->addOutputSocket(COM_DT_COLOR);
this->inputProgram = NULL;
}
void GlareThresholdOperation::initExecution() {
this->inputProgram = this->getInputSocketReader(0);
}
void GlareThresholdOperation::executePixel(float* color, float x, float y, PixelSampler sampler, MemoryBuffer *inputBuffers[]) {
this->inputProgram->read(color, x, y, sampler, inputBuffers);
if ((0.212671f*color[0] + 0.71516f*color[1] + 0.072169f*color[2]) >= threshold) {
color[0] -= threshold, color[1] -= threshold, color[2] -= threshold;
color[0] = MAX2(color[0], 0.f);
color[1] = MAX2(color[1], 0.f);
color[2] = MAX2(color[2], 0.f);
}
else color[0] = color[1] = color[2] = 0.f;
}
void GlareThresholdOperation::deinitExecution() {
this->inputProgram = NULL;
}
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