40bpp_anim.hpp

/*
 * This file is part of OpenTTD.
 * OpenTTD 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, version 2.
 * OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef BLITTER_40BPP_OPTIMIZED_HPP
#define BLITTER_40BPP_OPTIMIZED_HPP
 
 
#include "32bpp_optimized.hpp"
#include "../video/video_driver.hpp"
 
class Blitter_40bppAnim : public Blitter_32bppOptimized {
public:
 
  void SetPixel(void *video, int x, int y, uint8_t colour) override;
  void DrawRect(void *video, int width, int height, uint8_t colour) override;
  void DrawLine(void *video, int x, int y, int x2, int y2, int screen_width, int screen_height, uint8_t colour, int width, int dash) override;
  void CopyFromBuffer(void *video, const void *src, int width, int height) override;
  void CopyToBuffer(const void *video, void *dst, int width, int height) override;
  void CopyImageToBuffer(const void *video, void *dst, int width, int height, int dst_pitch) override;
  void ScrollBuffer(void *video, int &left, int &top, int &width, int &height, int scroll_x, int scroll_y) override;
  void Draw(Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom) override;
  void DrawColourMappingRect(void *dst, int width, int height, PaletteID pal) override;
  Sprite *Encode(const SpriteLoader::SpriteCollection &sprite, SpriteAllocator &allocator) override;
  size_t BufferSize(uint width, uint height) override;
  Blitter::PaletteAnimation UsePaletteAnimation() override;
  bool NeedsAnimationBuffer() override;
 
  std::string_view GetName()  override { return "40bpp-anim"; }
 
  template <BlitterMode mode> void Draw(const Blitter::BlitterParams *bp, ZoomLevel zoom);
 
protected:
  static inline Colour RealizeBlendedColour(uint8_t anim, Colour c)
  {
    return anim != 0 ? AdjustBrightness(LookupColourInPalette(anim), GetColourBrightness(c)) : c;
  }
 
};
 
class FBlitter_40bppAnim : public BlitterFactory {
protected:
  bool IsUsable() const override
  {
    return VideoDriver::GetInstance() == nullptr || VideoDriver::GetInstance()->HasAnimBuffer();
  }
 
public:
  FBlitter_40bppAnim() : BlitterFactory("40bpp-anim", "40bpp Animation Blitter (OpenGL)") {}
  Blitter *CreateInstance() override { return new Blitter_40bppAnim(); }
};
 
#endif /* BLITTER_40BPP_OPTIMIZED_HPP */