Mercurial > sdl-ios-xcode
diff test/automated/surface/surface.c @ 3471:da53c4046c65
Use 45 degree lines for the diagonal test to avoid aliasing errors in line drawing.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 21 Nov 2009 06:28:25 +0000 |
| parents | 0acec8c9f5c9 |
| children | 2c07bb579922 |
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--- a/test/automated/surface/surface.c Sat Nov 21 06:19:34 2009 +0000 +++ b/test/automated/surface/surface.c Sat Nov 21 06:28:25 2009 +0000 @@ -140,7 +140,19 @@ SDL_MapRGB( testsur->format, 55, 55, 5 ) ); if (SDL_ATassert( "SDL_DrawLine", ret == 0)) return; - ret = SDL_DrawLine( testsur, 0, 60, 80, 0, + ret = SDL_DrawLine( testsur, 0, 0, 29, 29, + SDL_MapRGB( testsur->format, 5, 105, 105 ) ); + if (SDL_ATassert( "SDL_DrawLine", ret == 0)) + return; + ret = SDL_DrawLine( testsur, 29, 30, 0, 59, + SDL_MapRGB( testsur->format, 5, 105, 105 ) ); + if (SDL_ATassert( "SDL_DrawLine", ret == 0)) + return; + ret = SDL_DrawLine( testsur, 79, 0, 50, 29, + SDL_MapRGB( testsur->format, 5, 105, 105 ) ); + if (SDL_ATassert( "SDL_DrawLine", ret == 0)) + return; + ret = SDL_DrawLine( testsur, 79, 59, 50, 30, SDL_MapRGB( testsur->format, 5, 105, 105 ) ); if (SDL_ATassert( "SDL_DrawLine", ret == 0)) return;