74 lines
2.2 KiB
C++
74 lines
2.2 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_InvertOperation.h"
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InvertOperation::InvertOperation(): NodeOperation()
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{
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this->addInputSocket(COM_DT_VALUE);
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this->addInputSocket(COM_DT_COLOR);
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this->addOutputSocket(COM_DT_COLOR);
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this->inputValueProgram = NULL;
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this->inputColorProgram = NULL;
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this->color = true;
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this->alpha = false;
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setResolutionInputSocketIndex(1);
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}
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void InvertOperation::initExecution()
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{
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this->inputValueProgram = this->getInputSocketReader(0);
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this->inputColorProgram = this->getInputSocketReader(1);
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}
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void InvertOperation::executePixel(float *out, float x, float y, PixelSampler sampler, MemoryBuffer *inputBuffers[])
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{
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float inputValue[4];
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float inputColor[4];
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this->inputValueProgram->read(inputValue, x, y, sampler, inputBuffers);
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this->inputColorProgram->read(inputColor, x, y, sampler, inputBuffers);
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const float value = inputValue[0];
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const float invertedValue = 1.0f - value;
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if (color) {
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out[0] = (1.0f - inputColor[0])*value + inputColor[0]*invertedValue;
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out[1] = (1.0f - inputColor[1])*value + inputColor[1]*invertedValue;
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out[2] = (1.0f - inputColor[2])*value + inputColor[2]*invertedValue;
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}
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else {
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copy_v3_v3(out, inputColor);
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}
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if (alpha)
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out[3] = (1.0f - inputColor[3])*value + inputColor[3]*invertedValue;
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else
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out[3] = inputColor[3];
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}
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void InvertOperation::deinitExecution()
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{
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this->inputValueProgram = NULL;
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this->inputColorProgram = NULL;
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}
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