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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2012 Blender Foundation. */
#pragma once
#include <string.h>
#include "COM_MultiThreadedOperation.h"
#include "DNA_movieclip_types.h"
#include "BLI_listbase.h"
#include "BLI_string.h"
#include "BLI_voronoi_2d.h"
namespace blender::compositor {
/**
* Class with implementation of green screen gradient rasterization
*/
class KeyingScreenOperation : public MultiThreadedOperation {
protected:
typedef struct TriangulationData {
VoronoiTriangulationPoint *triangulated_points;
int (*triangles)[3];
int triangulated_points_total, triangles_total;
rcti *triangles_AABB;
} TriangulationData;
/* TODO(manzanilla): rename to #TrianguledArea on removing tiled implementation. */
typedef struct TileData {
int *triangles;
int triangles_total;
} TileData;
MovieClip *movie_clip_;
int framenumber_;
TriangulationData *cached_triangulation_;
char tracking_object_[64];
/**
* Determine the output resolution. The resolution is retrieved from the Renderer
*/
void determine_canvas(const rcti &preferred_area, rcti &r_area) override;
TriangulationData *build_voronoi_triangulation();
public:
KeyingScreenOperation();
void init_execution() override;
void deinit_execution() override;
void *initialize_tile_data(rcti *rect) override;
void deinitialize_tile_data(rcti *rect, void *data) override;
void set_movie_clip(MovieClip *clip)
{
movie_clip_ = clip;
}
void set_tracking_object(const char *object)
{
BLI_strncpy(tracking_object_, object, sizeof(tracking_object_));
}
void set_framenumber(int framenumber)
{
framenumber_ = framenumber;
}
void execute_pixel(float output[4], int x, int y, void *data) override;
void update_memory_buffer_partial(MemoryBuffer *output,
const rcti &area,
Span<MemoryBuffer *> inputs) override;
private:
TileData *triangulate(const rcti *rect);
};
} // namespace blender::compositor
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