tile_highlight.h

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/* SPDX-FileCopyrightText: 2023 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */
 
#pragma once
 
#include "BLI_rect.h"
#include "BLI_set.hh"
#include "BLI_vector.hh"
 
#include <mutex>
 
struct RenderResult;
 
namespace blender::render {
 
class TilesHighlight {
 public:
  TilesHighlight() = default;
  ~TilesHighlight() = default;
 
  void highlight_tile_for_result(const RenderResult *result);
  void unhighlight_tile_for_result(const RenderResult *result);
 
  void highlight_tile(int x, int y, int width, int height);
  void unhighlight_tile(int x, int y, int width, int height);
 
  void clear();
 
  Span<rcti> get_all_highlighted_tiles() const;
 
 private:
  struct Tile {
    Tile() = default;
    explicit Tile(const RenderResult *result);
    explicit Tile(int x, int y, int width, int height);
 
    uint64_t hash() const;
 
    inline bool operator==(const Tile &other) const
    {
      return rect == other.rect;
    }
    inline bool operator!=(const Tile &other) const
    {
      return !(*this == other);
    }
 
    rcti rect = {0, 0, 0, 0};
  };
 
  void highlight_tile(const Tile &tile);
  void unhighlight_tile(const Tile &tile);
 
  mutable std::mutex mutex_;
  Set<Tile> highlighted_tiles_set_;
 
  /* Cached flat list of currently highlighted tiles for a fast access via API. */
  mutable bool did_tiles_change_ = false;
  mutable Vector<rcti> cached_highlighted_tiles_;
};
 
}  // namespace blender::render