# 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 */