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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2012 Blender Foundation. */
#pragma once
#include "COM_MultiThreadedOperation.h"
namespace blender::compositor {
/**
* this program converts an input color to an output value.
* it assumes we are in sRGB color space.
*/
class ChannelMatteOperation : public MultiThreadedOperation {
private:
SocketReader *input_image_program_;
/* int color_space_; */ /* node->custom1 */ /* UNUSED */ /* TODO ? */
int matte_channel_; /* node->custom2 */
int limit_method_; /* node->algorithm */
int limit_channel_; /* node->channel */
float limit_max_; /* node->storage->t1 */
float limit_min_; /* node->storage->t2 */
float limit_range_;
/** ids to use for the operations (max and simple)
* alpha = in[ids[0]] - MAX2(in[ids[1]], in[ids[2]])
* the simple operation is using:
* alpha = in[ids[0]] - in[ids[1]]
* but to use the same formula and operation for both we do:
* ids[2] = ids[1]
* alpha = in[ids[0]] - MAX2(in[ids[1]], in[ids[2]])
*/
int ids_[3];
public:
/**
* Default constructor
*/
ChannelMatteOperation();
/**
* The inner loop of this operation.
*/
void execute_pixel_sampled(float output[4], float x, float y, PixelSampler sampler) override;
void init_execution() override;
void deinit_execution() override;
void set_settings(NodeChroma *node_chroma, const int custom2)
{
limit_max_ = node_chroma->t1;
limit_min_ = node_chroma->t2;
limit_method_ = node_chroma->algorithm;
limit_channel_ = node_chroma->channel;
matte_channel_ = custom2;
}
void update_memory_buffer_partial(MemoryBuffer *output,
const rcti &area,
Span<MemoryBuffer *> inputs) override;
};
} // namespace blender::compositor
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