Mercurial > sdl-ios-xcode

comparison src/video/SDL_pixels.c @ 50:eda2f15ffb70

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Oops, back it out...
author Sam Lantinga <slouken@lokigames.com>
date Thu, 07 Jun 2001 15:04:04 +0000
parents f97decee03a9
children e8157fcb3114
comparison
equal deleted inserted replaced
49:6f3c474f9abd 50:eda2f15ffb70
462 static Uint8 *Map1toN(SDL_Palette *src, SDL_PixelFormat *dst) 462 static Uint8 *Map1toN(SDL_Palette *src, SDL_PixelFormat *dst)
463 { 463 {
464 Uint8 *map; 464 Uint8 *map;
465 int i; 465 int i;
466 int bpp; 466 int bpp;
467 unsigned alpha;
467 468
468 bpp = ((dst->BytesPerPixel == 3) ? 4 : dst->BytesPerPixel); 469 bpp = ((dst->BytesPerPixel == 3) ? 4 : dst->BytesPerPixel);
469 map = (Uint8 *)malloc(src->ncolors*bpp); 470 map = (Uint8 *)malloc(src->ncolors*bpp);
470 if ( map == NULL ) { 471 if ( map == NULL ) {
471 SDL_OutOfMemory(); 472 SDL_OutOfMemory();
472 return(NULL); 473 return(NULL);
473 } 474 }
474 475
476 alpha = dst->Amask ? SDL_ALPHA_OPAQUE : 0;
475 /* We memory copy to the pixel map so the endianness is preserved */ 477 /* We memory copy to the pixel map so the endianness is preserved */
476 for ( i=0; i<src->ncolors; ++i ) { 478 for ( i=0; i<src->ncolors; ++i ) {
477 ASSEMBLE_RGBA(&map[i*bpp], dst->BytesPerPixel, dst, 479 ASSEMBLE_RGBA(&map[i*bpp], dst->BytesPerPixel, dst,
478 src->colors[i].r, src->colors[i].g, 480 src->colors[i].r, src->colors[i].g,
479 src->colors[i].b, SDL_ALPHA_OPAQUE); 481 src->colors[i].b, alpha);
480 } 482 }
481 return(map); 483 return(map);
482 } 484 }
483 /* Map from BitField to Dithered-Palette to Palette */ 485 /* Map from BitField to Dithered-Palette to Palette */
484 static Uint8 *MapNto1(SDL_PixelFormat *src, SDL_Palette *dst, int *identical) 486 static Uint8 *MapNto1(SDL_PixelFormat *src, SDL_Palette *dst, int *identical)