COM_KeyingScreenOperation.h

Go to the documentation of this file.

/*
 * 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_NodeOperation.h"
 
#include "DNA_movieclip_types.h"
 
#include "BLI_listbase.h"
#include "BLI_string.h"
 
#include "BLI_voronoi_2d.h"
 
namespace blender::compositor {
 
class KeyingScreenOperation : public NodeOperation {
 protected:
  typedef struct TriangulationData {
    VoronoiTriangulationPoint *triangulated_points;
    int (*triangles)[3];
    int triangulated_points_total, triangles_total;
    rcti *triangles_AABB;
  } TriangulationData;
 
  typedef struct TileData {
    int *triangles;
    int triangles_total;
  } TileData;
 
  MovieClip *m_movieClip;
  int m_framenumber;
  TriangulationData *m_cachedTriangulation;
  char m_trackingObject[64];
 
  void determineResolution(unsigned int resolution[2],
                           unsigned int preferredResolution[2]) 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)
  {
    this->m_movieClip = clip;
  }
  void setTrackingObject(const char *object)
  {
    BLI_strncpy(this->m_trackingObject, object, sizeof(this->m_trackingObject));
  }
  void setFramenumber(int framenumber)
  {
    this->m_framenumber = framenumber;
  }
 
  void executePixel(float output[4], int x, int y, void *data) override;
};
 
}  // namespace blender::compositor