COM_PlaneTrackOperation.h

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/* SPDX-FileCopyrightText: 2013 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */
 
#pragma once
 
#include <string.h>
 
#include "COM_PlaneDistortCommonOperation.h"
 
#include "DNA_movieclip_types.h"
#include "DNA_tracking_types.h"
 
namespace blender::compositor {
 
class PlaneTrackCommon {
 protected:
  MovieClip *movie_clip_;
  int framenumber_;
  char tracking_object_name_[64];
  char plane_track_name_[64];
 
  /* NOTE: this class is not an operation itself (to prevent virtual inheritance issues)
   * implementation classes must make wrappers to use these methods, see below.
   */
  void read_and_calculate_corners(PlaneDistortBaseOperation *distort_op);
  void determine_canvas(const rcti &preferred_area, rcti &r_area);
 
 public:
  PlaneTrackCommon();
 
  void set_movie_clip(MovieClip *clip)
  {
    movie_clip_ = clip;
  }
  void set_tracking_object(char *object)
  {
    BLI_strncpy(tracking_object_name_, object, sizeof(tracking_object_name_));
  }
  void set_plane_track_name(char *plane_track)
  {
    BLI_strncpy(plane_track_name_, plane_track, sizeof(plane_track_name_));
  }
  void set_framenumber(int framenumber)
  {
    framenumber_ = framenumber;
  }
 
 private:
  void read_corners_from_track(float corners[4][2], float frame);
};
 
class PlaneTrackMaskOperation : public PlaneDistortMaskOperation, public PlaneTrackCommon {
 public:
  PlaneTrackMaskOperation() {}
 
  void init_data() override;
 
  void determine_canvas(const rcti &preferred_area, rcti &r_area) override
  {
    PlaneTrackCommon::determine_canvas(preferred_area, r_area);
 
    rcti unused = COM_AREA_NONE;
    rcti &preferred = r_area;
    NodeOperation::determine_canvas(preferred, unused);
  }
};
 
class PlaneTrackWarpImageOperation : public PlaneDistortWarpImageOperation,
                                     public PlaneTrackCommon {
 public:
  PlaneTrackWarpImageOperation() : PlaneTrackCommon() {}
 
  void init_data() override;
 
  void determine_canvas(const rcti &preferred_area, rcti &r_area) override
  {
    PlaneTrackCommon::determine_canvas(preferred_area, r_area);
 
    rcti unused = COM_AREA_NONE;
    rcti &preferred = r_area;
    NodeOperation::determine_canvas(preferred, unused);
  }
};
 
}  // namespace blender::compositor