null.hpp

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00001 /* $Id: null.hpp 15428 2009-02-09 02:57:15Z rubidium $ */
00002 
00005 #ifndef BLITTER_NULL_HPP
00006 #define BLITTER_NULL_HPP
00007 
00008 #include "base.hpp"
00009 #include "factory.hpp"
00010 
00011 class Blitter_Null : public Blitter {
00012 public:
00013   /* virtual */ uint8 GetScreenDepth() { return 0; }
00014   /* virtual */ void Draw(Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom) {};
00015   /* virtual */ void DrawColourMappingRect(void *dst, int width, int height, int pal) {};
00016   /* virtual */ Sprite *Encode(SpriteLoader::Sprite *sprite, Blitter::AllocatorProc *allocator);
00017   /* virtual */ void *MoveTo(const void *video, int x, int y) { return NULL; };
00018   /* virtual */ void SetPixel(void *video, int x, int y, uint8 colour) {};
00019   /* virtual */ void SetPixelIfEmpty(void *video, int x, int y, uint8 colour) {};
00020   /* virtual */ void DrawRect(void *video, int width, int height, uint8 colour) {};
00021   /* virtual */ void DrawLine(void *video, int x, int y, int x2, int y2, int screen_width, int screen_height, uint8 colour) {};
00022   /* virtual */ void CopyFromBuffer(void *video, const void *src, int width, int height) {};
00023   /* virtual */ void CopyToBuffer(const void *video, void *dst, int width, int height) {};
00024   /* virtual */ void CopyImageToBuffer(const void *video, void *dst, int width, int height, int dst_pitch) {};
00025   /* virtual */ void ScrollBuffer(void *video, int &left, int &top, int &width, int &height, int scroll_x, int scroll_y) {};
00026   /* virtual */ int BufferSize(int width, int height) { return 0; };
00027   /* virtual */ void PaletteAnimate(uint start, uint count) { };
00028   /* virtual */ Blitter::PaletteAnimation UsePaletteAnimation() { return Blitter::PALETTE_ANIMATION_NONE; };
00029 
00030   /* virtual */ const char *GetName() { return "null"; }
00031   /* virtual */ int GetBytesPerPixel() { return 0; }
00032 };
00033 
00034 class FBlitter_Null: public BlitterFactory<FBlitter_Null> {
00035 public:
00036   /* virtual */ const char *GetName() { return "null"; }
00037   /* virtual */ const char *GetDescription() { return "Null Blitter (does nothing)"; }
00038   /* virtual */ Blitter *CreateInstance() { return new Blitter_Null(); }
00039 };
00040 
00041 #endif /* BLITTER_NULL_HPP */

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