/* SPDX-License-Identifier: GPL-2.0-or-later
 * Copyright 2011 Blender Foundation. */

#pragma once

#include "COM_NodeOperation.h"
#include "COM_QualityStepHelper.h"
#include "DNA_node_types.h"

namespace blender::compositor {

class VectorBlurOperation : public NodeOperation, public QualityStepHelper {
 private:
  static constexpr int IMAGE_INPUT_INDEX = 0;
  static constexpr int Z_INPUT_INDEX = 1;
  static constexpr int SPEED_INPUT_INDEX = 2;

  /**
   * \brief Cached reference to the input_program
   */
  SocketReader *input_image_program_;
  SocketReader *input_speed_program_;
  SocketReader *input_zprogram_;

  /**
   * \brief settings of the glare node.
   */
  const NodeBlurData *settings_;

  float *cached_instance_;

 public:
  VectorBlurOperation();

  /**
   * The inner loop of this operation.
   */
  void execute_pixel(float output[4], int x, int y, void *data) override;

  /**
   * Initialize the execution
   */
  void init_execution() override;

  /**
   * Deinitialize the execution
   */
  void deinit_execution() override;

  void *initialize_tile_data(rcti *rect) override;

  void set_vector_blur_settings(const NodeBlurData *settings)
  {
    settings_ = settings;
  }
  bool determine_depending_area_of_interest(rcti *input,
                                            ReadBufferOperation *read_operation,
                                            rcti *output) override;

  void get_area_of_interest(int input_idx, const rcti &output_area, rcti &r_input_area) override;
  void update_memory_buffer(MemoryBuffer *output,
                            const rcti &area,
                            Span<MemoryBuffer *> inputs) override;

 protected:
  void generate_vector_blur(float *data,
                            MemoryBuffer *input_image,
                            MemoryBuffer *input_speed,
                            MemoryBuffer *inputZ);
};

}  // namespace blender::compositor