Brecht Van Lommel
09344fb102
before. It doesn't make much sense to always multiply with alpha, especially if it's a premul image that already has it multiplied in. Patch by Irie Shinsuke.
48 lines
1.5 KiB
C++
48 lines
1.5 KiB
C++
/*
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* Copyright 2011, Blender Foundation.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Contributor:
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* Jeroen Bakker
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* Monique Dewanchand
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*/
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#include "COM_ConvertColourToValueProg.h"
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ConvertColourToValueProg::ConvertColourToValueProg(): NodeOperation()
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{
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this->addInputSocket(COM_DT_COLOR);
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this->addOutputSocket(COM_DT_VALUE);
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this->inputOperation = NULL;
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}
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void ConvertColourToValueProg::initExecution()
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{
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this->inputOperation = this->getInputSocketReader(0);
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}
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void ConvertColourToValueProg::executePixel(float *outputValue, float x, float y, PixelSampler sampler, MemoryBuffer *inputBuffers[])
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{
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float inputColor[4];
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inputOperation->read(&inputColor[0], x, y, sampler, inputBuffers);
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outputValue[0] = (inputColor[0] + inputColor[1] + inputColor[2])/3.0f;
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}
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void ConvertColourToValueProg::deinitExecution()
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{
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this->inputOperation = NULL;
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}
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