base.hpp

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00001 /* $Id: base.hpp 15428 2009-02-09 02:57:15Z rubidium $ */
00002 
00005 #ifndef BLITTER_BASE_HPP
00006 #define BLITTER_BASE_HPP
00007 
00008 #include "../spritecache.h"
00009 #include "../spriteloader/spriteloader.hpp"
00010 #include "../zoom_type.h"
00011 
00012 enum BlitterMode {
00013   BM_NORMAL,
00014   BM_COLOUR_REMAP,
00015   BM_TRANSPARENT,
00016 };
00017 
00021 class Blitter {
00022 public:
00023   struct BlitterParams {
00024     const void *sprite;      
00025     const byte *remap;       
00026 
00027     int skip_left, skip_top; 
00028     int width, height;       
00029     int sprite_width;        
00030     int sprite_height;       
00031     int left, top;           
00032 
00033     void *dst;               
00034     int pitch;               
00035   };
00036 
00037   enum PaletteAnimation {
00038     PALETTE_ANIMATION_NONE,           
00039     PALETTE_ANIMATION_VIDEO_BACKEND,  
00040     PALETTE_ANIMATION_BLITTER,        
00041   };
00042 
00043   typedef void *AllocatorProc(size_t size);
00044 
00049   virtual uint8 GetScreenDepth() = 0;
00050 
00054   virtual void Draw(Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom) = 0;
00055 
00065   virtual void DrawColourMappingRect(void *dst, int width, int height, int pal) = 0;
00066 
00070   virtual Sprite *Encode(SpriteLoader::Sprite *sprite, Blitter::AllocatorProc *allocator) = 0;
00071 
00080   virtual void *MoveTo(const void *video, int x, int y) = 0;
00081 
00089   virtual void SetPixel(void *video, int x, int y, uint8 colour) = 0;
00090 
00098   virtual void SetPixelIfEmpty(void *video, int x, int y, uint8 colour) = 0;
00099 
00106   virtual void DrawRect(void *video, int width, int height, uint8 colour) = 0;
00107 
00119   virtual void DrawLine(void *video, int x, int y, int x2, int y2, int screen_width, int screen_height, uint8 colour) = 0;
00120 
00129   virtual void CopyFromBuffer(void *video, const void *src, int width, int height) = 0;
00130 
00139   virtual void CopyToBuffer(const void *video, void *dst, int width, int height) = 0;
00140 
00149   virtual void CopyImageToBuffer(const void *video, void *dst, int width, int height, int dst_pitch) = 0;
00150 
00161   virtual void ScrollBuffer(void *video, int &left, int &top, int &width, int &height, int scroll_x, int scroll_y) = 0;
00162 
00169   virtual int BufferSize(int width, int height) = 0;
00170 
00177   virtual void PaletteAnimate(uint start, uint count) = 0;
00178 
00183   virtual Blitter::PaletteAnimation UsePaletteAnimation() = 0;
00184 
00188   virtual const char *GetName() = 0;
00189 
00193   virtual int GetBytesPerPixel() = 0;
00194 
00195   virtual ~Blitter() { }
00196 };
00197 
00198 #endif /* BLITTER_BASE_HPP */

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