68 lines
1.8 KiB
C++
68 lines
1.8 KiB
C++
/* SPDX-FileCopyrightText: 2012 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#pragma once
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#include "COM_MultiThreadedOperation.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 MultiThreadedOperation {
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private:
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SocketReader *input_image_program_;
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// int color_space_; /* node->custom1 */ /* UNUSED */ /* TODO? */
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int matte_channel_; /* node->custom2 */
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int limit_method_; /* node->algorithm */
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int limit_channel_; /* node->channel */
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float limit_max_; /* node->storage->t1 */
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float limit_min_; /* node->storage->t2 */
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float limit_range_;
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/**
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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 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 execute_pixel_sampled(float output[4], float x, float y, PixelSampler sampler) override;
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void init_execution() override;
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void deinit_execution() override;
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void set_settings(NodeChroma *node_chroma, const int custom2)
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{
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limit_max_ = node_chroma->t1;
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limit_min_ = node_chroma->t2;
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limit_method_ = node_chroma->algorithm;
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limit_channel_ = node_chroma->channel;
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matte_channel_ = custom2;
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}
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void update_memory_buffer_partial(MemoryBuffer *output,
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const rcti &area,
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Span<MemoryBuffer *> inputs) override;
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};
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} // namespace blender::compositor
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