src/blitter/40bpp_anim.hpp

   1 /*
   2  * This file is part of OpenTTD.
   3  * 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.
   4  * 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.
   5  * 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/>.
   6  */
   7
   8 /** @file 40bpp_optimized.hpp Optimized 40 bpp blitter. */
   9
  10 #ifndef BLITTER_40BPP_OPTIMIZED_HPP
  11 #define BLITTER_40BPP_OPTIMIZED_HPP
  12
  13
  14 #include "32bpp_optimized.hpp"
  15 #include "../video/video_driver.hpp"
  16
  17 /** The optimized 40 bpp blitter (for OpenGL video driver). */
  18 class Blitter_40bppAnim : public Blitter_32bppOptimized {
  19 public:
  20
  21         void SetPixel(void *video, int x, int y, uint8_t colour) override;
  22         void DrawRect(void *video, int width, int height, uint8_t colour) override;
  23         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;
  24         void CopyFromBuffer(void *video, const void *src, int width, int height) override;
  25         void CopyToBuffer(const void *video, void *dst, int width, int height) override;
  26         void CopyImageToBuffer(const void *video, void *dst, int width, int height, int dst_pitch) override;
  27         void ScrollBuffer(void *video, int &left, int &top, int &width, int &height, int scroll_x, int scroll_y) override;
  28         void Draw(Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom) override;
  29         void DrawColourMappingRect(void *dst, int width, int height, PaletteID pal) override;
  30         Sprite *Encode(const SpriteLoader::SpriteCollection &sprite, SpriteAllocator &allocator) override;
  31         size_t BufferSize(uint width, uint height) override;
  32         Blitter::PaletteAnimation UsePaletteAnimation() override;
  33         bool NeedsAnimationBuffer() override;
  34
  35         std::string_view GetName()  override { return "40bpp-anim"; }
  36
  37         template <BlitterMode mode> void Draw(const Blitter::BlitterParams *bp, ZoomLevel zoom);
  38
  39 protected:
  40         static inline Colour RealizeBlendedColour(uint8_t anim, Colour c)
  41         {
  42                 return anim != 0 ? AdjustBrightness(LookupColourInPalette(anim), GetColourBrightness(c)) : c;
  43         }
  44
  45 };
  46
  47 /** Factory for the 40 bpp animated blitter (for OpenGL). */
  48 class FBlitter_40bppAnim : public BlitterFactory {
  49 protected:
  50         bool IsUsable() const override
  51         {
  52                 return VideoDriver::GetInstance() == nullptr || VideoDriver::GetInstance()->HasAnimBuffer();
  53         }
  54
  55 public:
  56         FBlitter_40bppAnim() : BlitterFactory("40bpp-anim", "40bpp Animation Blitter (OpenGL)") {}
  57         Blitter *CreateInstance() override { return new Blitter_40bppAnim(); }
  58 };
  59
  60 #endif /* BLITTER_40BPP_OPTIMIZED_HPP */