77 lines
2.5 KiB
C++
77 lines
2.5 KiB
C++
/*
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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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* Copyright 2012, Blender Foundation.
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*/
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#pragma once
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#include "COM_MixOperation.h"
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namespace blender::compositor {
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/**
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* this program converts an input color to an output value.
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* it assumes we are in sRGB color space.
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*/
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class ChannelMatteOperation : public NodeOperation {
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private:
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SocketReader *m_inputImageProgram;
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/* int m_color_space; */ /* node->custom1 */ /* UNUSED */ /* TODO ? */
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int m_matte_channel; /* node->custom2 */
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int m_limit_method; /* node->algorithm */
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int m_limit_channel; /* node->channel */
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float m_limit_max; /* node->storage->t1 */
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float m_limit_min; /* node->storage->t2 */
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float m_limit_range;
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/** ids to use for the operations (max and simple)
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* alpha = in[ids[0]] - MAX2(in[ids[1]], in[ids[2]])
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* the simple operation is using:
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* alpha = in[ids[0]] - in[ids[1]]
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* but to use the same formula and operation for both we do:
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* ids[2] = ids[1]
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* alpha = in[ids[0]] - MAX2(in[ids[1]], in[ids[2]])
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*/
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int m_ids[3];
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public:
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/**
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* Default constructor
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*/
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ChannelMatteOperation();
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/**
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* The inner loop of this operation.
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*/
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void executePixelSampled(float output[4], float x, float y, PixelSampler sampler) override;
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void initExecution() override;
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void deinitExecution() override;
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void setSettings(NodeChroma *nodeChroma, const int custom2)
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{
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this->m_limit_max = nodeChroma->t1;
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this->m_limit_min = nodeChroma->t2;
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this->m_limit_method = nodeChroma->algorithm;
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this->m_limit_channel = nodeChroma->channel;
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this->m_matte_channel = custom2;
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}
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};
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} // namespace blender::compositor
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