32bpp_sse2.hpp

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/*
 * 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_32BPP_SSE2_HPP
#define BLITTER_32BPP_SSE2_HPP
 
#ifdef WITH_SSE
 
#ifndef SSE_VERSION
#define SSE_VERSION 2
#endif
 
#ifndef SSE_TARGET
#define SSE_TARGET "sse2"
#endif
 
#ifndef FULL_ANIMATION
#define FULL_ANIMATION 0
#endif
 
#include "32bpp_sse_type.h"
 
class Blitter_32bppSSE_Base {
public:
  virtual ~Blitter_32bppSSE_Base() = default;
 
  struct MapValue {
    uint8_t m;
    uint8_t v;
  };
  static_assert(sizeof(MapValue) == 2);
 
  enum ReadMode : uint8_t {
    RM_WITH_SKIP,   
    RM_WITH_MARGIN, 
    RM_NONE,        
  };
 
  enum BlockType : uint8_t {
    BT_EVEN, 
    BT_ODD,  
    BT_NONE, 
  };
 
  enum class SpriteFlag : uint8_t {
    Translucent, 
    NoRemap, 
    NoAnim, 
  };
 
  using SpriteFlags = EnumBitSet<SpriteFlag, uint8_t>;
 
  struct SpriteInfo {
    uint32_t sprite_offset = 0;    
    uint32_t mv_offset = 0;        
    uint16_t sprite_line_size = 0; 
    uint16_t sprite_width = 0;     
  };
  struct SpriteData {
    SpriteFlags flags{};
    std::array<SpriteInfo, ZOOM_LVL_END> infos{};
    uint8_t data[]; 
  };
 
  Sprite *Encode(const SpriteLoader::SpriteCollection &sprite, SpriteAllocator &allocator);
};
 
class Blitter_32bppSSE2 : public Blitter_32bppSimple, public Blitter_32bppSSE_Base {
public:
  void Draw(Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom) override;
  template <BlitterMode mode, Blitter_32bppSSE_Base::ReadMode read_mode, Blitter_32bppSSE_Base::BlockType bt_last, bool translucent>
  void Draw(const Blitter::BlitterParams *bp, ZoomLevel zoom);
 
  Sprite *Encode(const SpriteLoader::SpriteCollection &sprite, SpriteAllocator &allocator) override {
    return Blitter_32bppSSE_Base::Encode(sprite, allocator);
  }
 
  std::string_view GetName() override { return "32bpp-sse2"; }
};
 
class FBlitter_32bppSSE2 : public BlitterFactory {
public:
  FBlitter_32bppSSE2() : BlitterFactory("32bpp-sse2", "32bpp SSE2 Blitter (no palette animation)", HasCPUIDFlag(1, 3, 26)) {}
  std::unique_ptr<Blitter> CreateInstance() override { return std::make_unique<Blitter_32bppSSE2>(); }
};
 
#endif /* WITH_SSE */
#endif /* BLITTER_32BPP_SSE2_HPP */