Mercurial > sdl-ios-xcode
diff test/testbitmap.c @ 691:609543e2b3a1
Date: Fri, 15 Aug 2003 09:13:59 +0300
From: "Mike Gorchak"
Subject: Patches for tests and QNX6
1) graywin - added support for the gray gradient in the 15/16 bpp modes. Added SDL_VIDEOEXPOSE event handling.
2) testalpha - added support for the gray gradient in the 15/16 bpp modes.
3) testbitmap - added support for the gray gradient in the 8/15/16 bpp modes.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 23 Aug 2003 23:18:49 +0000 |
| parents | 74212992fb08 |
| children | be9c9c8f6d53 |
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--- a/test/testbitmap.c Sat Aug 23 23:12:19 2003 +0000 +++ b/test/testbitmap.c Sat Aug 23 23:18:49 2003 +0000 @@ -50,8 +50,13 @@ Uint8 video_bpp; Uint32 videoflags; Uint8 *buffer; - int i, done; + int i, k, done; SDL_Event event; + Uint16 *buffer16; + Uint16 color; + Uint8 gradient; + SDL_Color palette[256]; + /* Initialize SDL */ if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) { @@ -91,6 +96,16 @@ exit(2); } + if (video_bpp==8) { + /* Set a gray colormap, reverse order from white to black */ + for ( i=0; i<256; ++i ) { + palette[i].r = 255-i; + palette[i].g = 255-i; + palette[i].b = 255-i; + } + SDL_SetColors(screen, palette, 0, 256); + } + /* Set the surface pixels and refresh! */ if ( SDL_LockSurface(screen) < 0 ) { fprintf(stderr, "Couldn't lock the display surface: %s\n", @@ -98,10 +113,25 @@ exit(2); } buffer=(Uint8 *)screen->pixels; - for ( i=0; i<screen->h; ++i ) { - memset(buffer,(i*255)/screen->h, screen->pitch); - buffer += screen->pitch; - } + if (screen->format->BytesPerPixel!=2) { + for ( i=0; i<screen->h; ++i ) { + memset(buffer,(i*255)/screen->h, screen->pitch); + buffer += screen->pitch; + } + } + else + { + for ( i=0; i<screen->h; ++i ) { + gradient=((i*255)/screen->h); + color = SDL_MapRGB(screen->format, gradient, gradient, gradient); + buffer16=(Uint16*)buffer; + for (k=0; k<screen->w; k++) + { + *(buffer16+k)=color; + } + buffer += screen->pitch; + } + } SDL_UnlockSurface(screen); SDL_UpdateRect(screen, 0, 0, 0, 0);