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fix black dots in images (finally)

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Glenn Maynard
2002-11-20 01:54:15 +00:00
parent dbb6f0416c
commit 6967db837b
1 changed files with 16 additions and 2 deletions
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stepmania/src/SDL_utils.cpp
+16 -2
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@@ -161,8 +161,22 @@ void ConvertSDLSurface(SDL_Surface *&image,
/* I'd really like to do away with this, but a lot of song images use it. /* I'd really like to do away with this, but a lot of song images use it.
* I suppose this should be yet another hint, but they're getting cumbersome ... */ * I suppose this should be yet another hint, but they're getting cumbersome ... */
if(!(image->flags & SDL_SRCCOLORKEY)) if(!(image->flags & SDL_SRCCOLORKEY)) {
SDL_SetColorKey( image, SDL_SRCCOLORKEY, SDL_MapRGB(image->format, 0xFF, 0, 0xFF)); /* Annoying: SDL will do a nearest-match on paletted images if
* they don't have the color we ask for, so images without HOT PINK
* will get some other random color transparent; so we have to make
* sure the value returned for paletted images is exactly #FF00FF. */
int color = SDL_MapRGB(image->format, 0xFF, 0, 0xFF);
if( image->format->BitsPerPixel == 8 ) {
if(image->format->palette->colors[color].r != 0xFF ||
image->format->palette->colors[color].g != 0x00 ||
image->format->palette->colors[color].b != 0xFF )
color = -1;
}
if( color != -1 )
SDL_SetColorKey( image, SDL_SRCCOLORKEY, color);
}
/* We don't want to actually blend the alpha channel over the destination converted /* We don't want to actually blend the alpha channel over the destination converted
* surface; we want to simply blit it, so make sure SDL_SRCALPHA is not on. */ * surface; we want to simply blit it, so make sure SDL_SRCALPHA is not on. */