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/* $Id$ */

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/** @file null.hpp */

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#ifndef BLITTER_NULL_HPP

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#define BLITTER_NULL_HPP

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#include "base.hpp"

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#include "factory.hpp"

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class Blitter_Null : public Blitter {

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public:

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	/* virtual */ uint8 GetScreenDepth() { return 0; }

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	/* virtual */ void Draw(Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom) {};

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	/* virtual */ void DrawColorMappingRect(void *dst, int width, int height, int pal) {};

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	/* virtual */ Sprite *Encode(SpriteLoader::Sprite *sprite, Blitter::AllocatorProc *allocator);

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	/* virtual */ void *MoveTo(const void *video, int x, int y) { return NULL; };

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	/* virtual */ void SetPixel(void *video, int x, int y, uint8 color) {};

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	/* virtual */ void SetPixelIfEmpty(void *video, int x, int y, uint8 color) {};

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	/* virtual */ void DrawRect(void *video, int width, int height, uint8 color) {};

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	/* virtual */ void DrawLine(void *video, int x, int y, int x2, int y2, int screen_width, int screen_height, uint8 color) {};

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	/* virtual */ void CopyFromBuffer(void *video, const void *src, int width, int height) {};

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	/* virtual */ void CopyToBuffer(const void *video, void *dst, int width, int height) {};

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	/* virtual */ void CopyImageToBuffer(const void *video, void *dst, int width, int height, int dst_pitch) {};

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	/* virtual */ void ScrollBuffer(void *video, int &left, int &top, int &width, int &height, int scroll_x, int scroll_y) {};

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	/* virtual */ int BufferSize(int width, int height) { return 0; };

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	/* virtual */ void PaletteAnimate(uint start, uint count) { };

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	/* virtual */ Blitter::PaletteAnimation UsePaletteAnimation() { return Blitter::PALETTE_ANIMATION_NONE; };

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	/* virtual */ const char *GetName() { return "null"; }

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};

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class FBlitter_Null: public BlitterFactory<FBlitter_Null> {

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public:

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	/* virtual */ const char *GetName() { return "null"; }

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	/* virtual */ const char *GetDescription() { return "Null Blitter (does nothing)"; }

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	/* virtual */ Blitter *CreateInstance() { return new Blitter_Null(); }

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};

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#endif /* BLITTER_NULL_HPP */