Mercurial > sdl-ios-xcode
diff src/video/SDL_blit.c @ 2265:265bb136af92
More work in progress...
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Fri, 17 Aug 2007 06:58:20 +0000 |
parents | 900c35d8e8fd |
children | e61ad15a205f |
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--- a/src/video/SDL_blit.c Fri Aug 17 06:41:20 2007 +0000 +++ b/src/video/SDL_blit.c Fri Aug 17 06:58:20 2007 +0000 @@ -121,7 +121,7 @@ static SDL_BlitFunc SDL_ChooseBlitFunc(Uint32 src_format, Uint32 dst_format, int flags, SDL_BlitFuncEntry * entries) { - int i; + int i, flagcheck; static Uint32 features = 0xffffffff; /* Get the available CPU features */ @@ -157,18 +157,45 @@ } for (i = 0; entries[i].func; ++i) { + /* Check for matching pixel formats */ if (src_format != entries[i].src_format) { continue; } if (dst_format != entries[i].dst_format) { continue; } - if ((flags & entries[i].flags) != flags) { + + /* Check modulation flags */ + flagcheck = (flags & (SDL_COPY_MODULATE_COLOR|SDL_COPY_MODULATE_COLOR)); + if ((flagcheck & entries[i].flags) != flagcheck) { + continue; + } + + /* Check blend flags */ + flagcheck = (flags & (SDL_COPY_MASK|SDL_COPY_BLEND|SDL_COPY_ADD|SDL_COPY_MOD)); + if ((flagcheck & entries[i].flags) != flagcheck) { continue; } - if (!(features & entries[i].cpu)) { + + /* Check colorkey flag */ + flagcheck = (flags & SDL_COPY_COLORKEY); + if ((flagcheck & entries[i].flags) != flagcheck) { continue; } + + /* Check scaling flags */ + flagcheck = (flags & SDL_COPY_NEAREST); + if ((flagcheck & entries[i].flags) != flagcheck) { + continue; + } + + /* Check CPU features */ + flagcheck = entries[i].cpu; + if ((flagcheck & features) != flagcheck) { + continue; + } + + /* We found the best one! */ return entries[i].func; } return NULL; @@ -232,8 +259,8 @@ } /* Choose software blitting function */ - if (surface->flags & SDL_RLEACCELOK) { - if (surface->map->identity + if ((surface->flags & SDL_RLEACCELOK) && !(surface->map->flags & () { + if (surface->map->identity && (surface->map->flags & SDL_COPY_COLORKEY) && (blit_index == 1 || (blit_index == 3 && !surface->format->Amask))) { if (SDL_RLESurface(surface) == 0)