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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* 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 *movieClip_;
int framenumber_;
TriangulationData *cachedTriangulation_;
char trackingObject_[64];
/**
* Determine the output resolution. The resolution is retrieved from the Renderer
*/
void determine_canvas(const rcti &preferred_area, rcti &r_area) override;
TriangulationData *buildVoronoiTriangulation();
public:
KeyingScreenOperation();
void initExecution() override;
void deinitExecution() override;
void *initializeTileData(rcti *rect) override;
void deinitializeTileData(rcti *rect, void *data) override;
void setMovieClip(MovieClip *clip)
{
movieClip_ = clip;
}
void setTrackingObject(const char *object)
{
BLI_strncpy(trackingObject_, object, sizeof(trackingObject_));
}
void setFramenumber(int framenumber)
{
framenumber_ = framenumber;
}
void executePixel(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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