OpenTTD/src/blitter/null.hpp

/* $Id$ */

/** @file null.hpp */

#ifndef BLITTER_NULL_HPP
#define BLITTER_NULL_HPP

#include "base.hpp"
#include "factory.hpp"

class Blitter_Null : public Blitter {
public:
	/* virtual */ uint8 GetScreenDepth() { return 0; }
	/* virtual */ void Draw(Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom) {};
	/* virtual */ void DrawColorMappingRect(void *dst, int width, int height, int pal) {};
	/* virtual */ Sprite *Encode(SpriteLoader::Sprite *sprite, Blitter::AllocatorProc *allocator);
	/* virtual */ void *MoveTo(const void *video, int x, int y) { return NULL; };
	/* virtual */ void SetPixel(void *video, int x, int y, uint8 color) {};
	/* virtual */ void SetPixelIfEmpty(void *video, int x, int y, uint8 color) {};
	/* virtual */ void SetHorizontalLine(void *video, int width, uint8 color) {};
	/* virtual */ void CopyFromBuffer(void *video, const void *src, int width, int height, int src_pitch) {};
	/* virtual */ void CopyToBuffer(const void *video, void *dst, int width, int height, int dst_pitch) {};
	/* virtual */ void MoveBuffer(void *video_dst, const void *video_src, int width, int height) {};
	/* virtual */ int BufferSize(int width, int height) { return 0; };
};

class FBlitter_Null: public BlitterFactory<FBlitter_Null> {
public:
	/* virtual */ const char *GetName() { return "null"; }
	/* virtual */ const char *GetDescription() { return "Null Blitter (does nothing)"; }
	/* virtual */ Blitter *CreateInstance() { return new Blitter_Null(); }
};

#endif /* BLITTER_NULL_HPP */