COM_PlaneDistortCommonOperation.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_MultiThreadedOperation.h"
 
#include "DNA_movieclip_types.h"
#include "DNA_tracking_types.h"
 
#include "BLI_listbase.h"
#include "BLI_string.h"
 
namespace blender::compositor {
 
#define PLANE_DISTORT_MAX_SAMPLES 64
 
class PlaneDistortBaseOperation : public MultiThreadedOperation {
 protected:
  struct MotionSample {
    float frame_space_corners[4][2]; /* Corners coordinates in pixel space. */
    float perspective_matrix[3][3];
  };
  MotionSample samples_[PLANE_DISTORT_MAX_SAMPLES];
  int motion_blur_samples_;
  float motion_blur_shutter_;
 
 public:
  PlaneDistortBaseOperation();
 
  void set_motion_blur_samples(int samples)
  {
    BLI_assert(samples <= PLANE_DISTORT_MAX_SAMPLES);
    motion_blur_samples_ = samples;
  }
  void set_motion_blur_shutter(float shutter)
  {
    motion_blur_shutter_ = shutter;
  }
 
  virtual void calculate_corners(const float corners[4][2], bool normalized, int sample);
 
 private:
  friend class PlaneTrackCommon;
};
 
class PlaneDistortWarpImageOperation : public PlaneDistortBaseOperation {
 public:
  PlaneDistortWarpImageOperation();
 
  void calculate_corners(const float corners[4][2], bool normalized, int sample) override;
 
  void get_area_of_interest(int input_idx, const rcti &output_area, rcti &r_input_area) override;
  void update_memory_buffer_partial(MemoryBuffer *output,
                                    const rcti &area,
                                    Span<MemoryBuffer *> inputs) override;
};
 
class PlaneDistortMaskOperation : public PlaneDistortBaseOperation {
 public:
  PlaneDistortMaskOperation();
 
  void update_memory_buffer_partial(MemoryBuffer *output,
                                    const rcti &area,
                                    Span<MemoryBuffer *> inputs) override;
};
 
}  // namespace blender::compositor