Mercurial > sdl-ios-xcode

comparison src/video/SDL_surface.c @ 1052:68f607298ca9

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Some work on using accelerated alpha blits with hardware surfaces. From Stephane Marchesin's fork, don't know who originally wrote it.
author Ryan C. Gordon <icculus@icculus.org>
date Sun, 17 Apr 2005 10:40:41 +0000
parents c2f2370ac1e5
children 91569ec25acd
comparison
equal deleted inserted replaced
1051:091350827e08 1052:68f607298ca9
89 SDL_OutOfMemory(); 89 SDL_OutOfMemory();
90 return(NULL); 90 return(NULL);
91 } 91 }
92 surface->flags = SDL_SWSURFACE; 92 surface->flags = SDL_SWSURFACE;
93 if ( (flags & SDL_HWSURFACE) == SDL_HWSURFACE ) { 93 if ( (flags & SDL_HWSURFACE) == SDL_HWSURFACE ) {
94 depth = screen->format->BitsPerPixel; 94 if ((Amask) && (video->displayformatalphapixel))
95 Rmask = screen->format->Rmask; 95 {
96 Gmask = screen->format->Gmask; 96 depth = video->displayformatalphapixel->BitsPerPixel;
97 Bmask = screen->format->Bmask; 97 Rmask = video->displayformatalphapixel->Rmask;
98 Amask = screen->format->Amask; 98 Gmask = video->displayformatalphapixel->Gmask;
99 Bmask = video->displayformatalphapixel->Bmask;
100 Amask = video->displayformatalphapixel->Amask;
101 }
102 else
103 {
104 depth = screen->format->BitsPerPixel;
105 Rmask = screen->format->Rmask;
106 Gmask = screen->format->Gmask;
107 Bmask = screen->format->Bmask;
108 Amask = screen->format->Amask;
109 }
99 } 110 }
100 surface->format = SDL_AllocFormat(depth, Rmask, Gmask, Bmask, Amask); 111 surface->format = SDL_AllocFormat(depth, Rmask, Gmask, Bmask, Amask);
101 if ( surface->format == NULL ) { 112 if ( surface->format == NULL ) {
102 free(surface); 113 free(surface);
103 return(NULL); 114 return(NULL);