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00012 #ifndef BLITTER_BASE_HPP
00013 #define BLITTER_BASE_HPP
00014
00015 #include "../spritecache.h"
00016 #include "../spriteloader/spriteloader.hpp"
00017 #include "../zoom_type.h"
00018
00019 enum BlitterMode {
00020 BM_NORMAL,
00021 BM_COLOUR_REMAP,
00022 BM_TRANSPARENT,
00023 };
00024
00028 class Blitter {
00029 public:
00030 struct BlitterParams {
00031 const void *sprite;
00032 const byte *remap;
00033
00034 int skip_left, skip_top;
00035 int width, height;
00036 int sprite_width;
00037 int sprite_height;
00038 int left, top;
00039
00040 void *dst;
00041 int pitch;
00042 };
00043
00044 enum PaletteAnimation {
00045 PALETTE_ANIMATION_NONE,
00046 PALETTE_ANIMATION_VIDEO_BACKEND,
00047 PALETTE_ANIMATION_BLITTER,
00048 };
00049
00050 typedef void *AllocatorProc(size_t size);
00051
00056 virtual uint8 GetScreenDepth() = 0;
00057
00061 virtual void Draw(Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom) = 0;
00062
00072 virtual void DrawColourMappingRect(void *dst, int width, int height, int pal) = 0;
00073
00077 virtual Sprite *Encode(SpriteLoader::Sprite *sprite, Blitter::AllocatorProc *allocator) = 0;
00078
00087 virtual void *MoveTo(const void *video, int x, int y) = 0;
00088
00096 virtual void SetPixel(void *video, int x, int y, uint8 colour) = 0;
00097
00105 virtual void SetPixelIfEmpty(void *video, int x, int y, uint8 colour) = 0;
00106
00114 virtual void DrawRect(void *video, int width, int height, uint8 colour) = 0;
00115
00127 virtual void DrawLine(void *video, int x, int y, int x2, int y2, int screen_width, int screen_height, uint8 colour) = 0;
00128
00137 virtual void CopyFromBuffer(void *video, const void *src, int width, int height) = 0;
00138
00147 virtual void CopyToBuffer(const void *video, void *dst, int width, int height) = 0;
00148
00157 virtual void CopyImageToBuffer(const void *video, void *dst, int width, int height, int dst_pitch) = 0;
00158
00169 virtual void ScrollBuffer(void *video, int &left, int &top, int &width, int &height, int scroll_x, int scroll_y) = 0;
00170
00177 virtual int BufferSize(int width, int height) = 0;
00178
00185 virtual void PaletteAnimate(uint start, uint count) = 0;
00186
00191 virtual Blitter::PaletteAnimation UsePaletteAnimation() = 0;
00192
00196 virtual const char *GetName() = 0;
00197
00201 virtual int GetBytesPerPixel() = 0;
00202
00203 virtual ~Blitter() { }
00204 };
00205
00206 #endif