pandory500/SDL-mirror
2
0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

It turns out both the software and the OpenGL renderer had the same problem.

Browse source 
According to the spec, when SDL_SRCALPHA is set, the colorkey is ignored, so
we just need to convert the colorkey into the alpha channel.

--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%403248
This commit is contained in:
Sam Lantinga 2008-11-25 05:29:14 +00:00
parent a733eee1b8
commit 228035d0f3
2 changed files with 2 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

3
src/video/SDL_surface.c
View file

@ -270,7 +270,7 @@ SDL_SetColorKey(SDL_Surface * surface, Uint32 flag, Uint32 key)
}
/* This is a fairly slow function to switch from colorkey to alpha */
void
static void
SDL_ConvertColorkeyToAlpha(SDL_Surface * surface)
{
int x, y;
@ -813,6 +813,7 @@ SDL_ConvertSurface(SDL_Surface * surface,
&keyG, &keyB, &keyA);
SDL_SetColorKey(convert, 1,
SDL_MapRGBA(convert->format, keyR, keyG, keyB, keyA));
SDL_ConvertColorkeyToAlpha(convert);
}
convert->map->info.r = surface->map->info.r;
convert->map->info.g = surface->map->info.g;

4
src/video/SDL_video.c
View file

@ -46,9 +46,6 @@
#endif
#endif /* SDL_VIDEO_OPENGL */
/* From SDL_surface.c */
extern void SDL_ConvertColorkeyToAlpha(SDL_Surface * surface);
/* Available video drivers */
static VideoBootStrap *bootstrap[] = {
#if SDL_VIDEO_DRIVER_COCOA
@ -1588,7 +1585,6 @@ SDL_CreateTextureFromSurface(Uint32 format, SDL_Surface * surface)
}
dst = SDL_ConvertSurface(surface, dst_fmt, 0);
if (dst) {
SDL_ConvertColorkeyToAlpha(dst);
SDL_UpdateTexture(textureID, NULL, dst->pixels, dst->pitch);
SDL_FreeSurface(dst);
}