85 lines
2.2 KiB
C++
85 lines
2.2 KiB
C++
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/*
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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_MixBurnOperation.h"
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MixBurnOperation::MixBurnOperation(): MixBaseOperation() {
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}
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void MixBurnOperation::executePixel(float* outputValue, float x, float y, PixelSampler sampler, MemoryBuffer *inputBuffers[]) {
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float inputColor1[4];
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float inputColor2[4];
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float value;
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float tmp;
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inputValueOperation->read(&value, x, y, sampler, inputBuffers);
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inputColor1Operation->read(&inputColor1[0], x, y, sampler, inputBuffers);
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inputColor2Operation->read(&inputColor2[0], x, y, sampler, inputBuffers);
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if (this->useValueAlphaMultiply()) {
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value *= inputColor2[3];
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}
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float valuem= 1.0f-value;
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tmp = valuem + value*inputColor2[0];
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if (tmp <= 0.0f)
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outputValue[0] = 0.0f;
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else {
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tmp = 1.0f - (1.0f - inputColor1[0]) / tmp;
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if (tmp < 0.0f)
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outputValue[0] = 0.0f;
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else if (tmp > 1.0f)
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outputValue[0] = 1.0f;
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else
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outputValue[0] = tmp;
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}
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tmp = valuem + value*inputColor2[1];
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if (tmp <= 0.0f)
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outputValue[1] = 0.0f;
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else {
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tmp = 1.0f - (1.0f - inputColor1[1]) / tmp;
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if (tmp < 0.0f)
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outputValue[1] = 0.0f;
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else if (tmp > 1.0f)
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outputValue[1] = 1.0f;
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else
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outputValue[1] = tmp;
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}
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tmp = valuem + value*inputColor2[2];
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if (tmp <= 0.0f)
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outputValue[2] = 0.0f;
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else {
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tmp = 1.0f - (1.0f - inputColor1[2]) / tmp;
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if (tmp < 0.0f)
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outputValue[2] = 0.0f;
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else if (tmp > 1.0f)
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outputValue[2] = 1.0f;
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else
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outputValue[2] = tmp;
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}
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outputValue[3] = inputColor1[3];
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}
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