68 lines
2.0 KiB
C++
68 lines
2.0 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_MixHueOperation.h"
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extern "C" {
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#include "BLI_math.h"
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}
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MixHueOperation::MixHueOperation() : MixBaseOperation()
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{
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/* pass */
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}
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void MixHueOperation::executePixel(float output[4], float x, float y, PixelSampler sampler)
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{
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float inputColor1[4];
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float inputColor2[4];
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float inputValue[4];
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this->m_inputValueOperation->read(inputValue, x, y, sampler);
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this->m_inputColor1Operation->read(inputColor1, x, y, sampler);
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this->m_inputColor2Operation->read(inputColor2, x, y, sampler);
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float value = inputValue[0];
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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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float colH, colS, colV;
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rgb_to_hsv(inputColor2[0], inputColor2[1], inputColor2[2], &colH, &colS, &colV);
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if (colS != 0.0f) {
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float rH, rS, rV;
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float tmpr, tmpg, tmpb;
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rgb_to_hsv(inputColor1[0], inputColor1[1], inputColor1[2], &rH, &rS, &rV);
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hsv_to_rgb(colH, rS, rV, &tmpr, &tmpg, &tmpb);
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output[0] = valuem * (inputColor1[0]) + value * tmpr;
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output[1] = valuem * (inputColor1[1]) + value * tmpg;
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output[2] = valuem * (inputColor1[2]) + value * tmpb;
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}
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else {
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copy_v3_v3(output, inputColor1);
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}
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output[3] = inputColor1[3];
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clampIfNeeded(output);
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}
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