dave/openttd
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

(svn r22397) -Document: some tidbits of the blitter code

Browse Source
This commit is contained in:
rubidium
2011-05-01 10:15:33 +00:00
parent 70c7ec30b1
commit 485c7cd99e
20 changed files with 91 additions and 52 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
src/blitter/null.hpp
View File

@@ -14,6 +14,7 @@
#include "factory.hpp"
/** Blitter that does nothing. */
class Blitter_Null : public Blitter {
public:
/* virtual */ uint8 GetScreenDepth() { return 0; }
@@ -23,7 +24,7 @@ public:
/* virtual */ void *MoveTo(const void *video, int x, int y) { return NULL; };
/* virtual */ void SetPixel(void *video, int x, int y, uint8 colour) {};
/* virtual */ void DrawRect(void *video, int width, int height, uint8 colour) {};
/* virtual */ void DrawLine(void *video, int x, int y, int x2, int y2, int screen_width, int screen_height, uint8 colour) {};
/* virtual */ void DrawLine(void *video, int x, int y, int x2, int y2, int screen_width, int screen_height, uint8 colour, int width) {};
/* 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) {};
@@ -36,6 +37,7 @@ public:
/* virtual */ int GetBytesPerPixel() { return 0; }
};
/** Factory for the blitter that doesn nothing. */
class FBlitter_Null: public BlitterFactory<FBlitter_Null> {
public:
/* virtual */ const char *GetName() { return "null"; }