forked from mirror/OpenTTD
003375d375
-Codechange: introduced a hierachy of blitters to avoid a lot of code duplication Note: this allows much easier adding other types of video-drivers, like OpenGL
36 lines
1.6 KiB
C++
36 lines
1.6 KiB
C++
/* $Id$ */
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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 SetHorizontalLine(void *video, int width, uint8 color) {};
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/* virtual */ void DrawLine(void *video, int x, int y, int x2, int y2, uint8 color) {};
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/* virtual */ void CopyFromBuffer(void *video, const void *src, int width, int height, int src_pitch) {};
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/* virtual */ void CopyToBuffer(const void *video, void *dst, int width, int height, int dst_pitch) {};
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/* virtual */ void MoveBuffer(void *video_dst, const void *video_src, int width, int height) {};
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/* virtual */ int BufferSize(int width, int height) { return 0; };
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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 */
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