cpp/openttd-patchpack/source Files · src/blitter/null.hpp

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r7882:cdf03a4ac84a 1.9 KiB text/x-c++hdr Show Annotation Show as Raw Download as Raw

rubidium

(svn r11433) -Fix: starting OpenTTD with DOS files made it look weird out of the box.
-Change: make extra sprites (the ones not in the TTD GRFs) replaceable using Action 5.
-Feature: make replacing contiguous subsets of sprites in for some types possible in Action 5.
Note to GRF authors: when you replaced OpenTTD sprites that are not from the TTD GRF files using Action A, your GRF will not have the intended result anymore as the sprite numbers have changed. You should replace the Action A with an Action 5 from now on.

/* $Id$ */

/** @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 DrawRect(void *video, int width, int height, uint8 color) {};
	/* virtual */ void DrawLine(void *video, int x, int y, int x2, int y2, int screen_width, int screen_height, uint8 color) {};
	/* virtual */ void CopyFromBuffer(void *video, const void *src, int width, int height) {};
	/* virtual */ void CopyToBuffer(const void *video, void *dst, int width, int height) {};
	/* virtual */ void CopyImageToBuffer(const void *video, void *dst, int width, int height, int dst_pitch) {};
	/* virtual */ void ScrollBuffer(void *video, int &left, int &top, int &width, int &height, int scroll_x, int scroll_y) {};
	/* virtual */ int BufferSize(int width, int height) { return 0; };
	/* virtual */ void PaletteAnimate(uint start, uint count) { };
	/* virtual */ Blitter::PaletteAnimation UsePaletteAnimation() { return Blitter::PALETTE_ANIMATION_NONE; };

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

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 */