IMG_bmp.c
author Sam Lantinga <slouken@lokigames.com>
Thu, 10 Aug 2000 06:05:39 +0000
changeset 0 76be7dab668c
child 53 96b084473b47
permissions -rw-r--r--
Initial revision
     1 /*
     2     IMGLIB:  An example image loading library for use with SDL
     3     Copyright (C) 1999  Sam Lantinga
     4 
     5     This library is free software; you can redistribute it and/or
     6     modify it under the terms of the GNU Library General Public
     7     License as published by the Free Software Foundation; either
     8     version 2 of the License, or (at your option) any later version.
     9 
    10     This library is distributed in the hope that it will be useful,
    11     but WITHOUT ANY WARRANTY; without even the implied warranty of
    12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    13     Library General Public License for more details.
    14 
    15     You should have received a copy of the GNU Library General Public
    16     License along with this library; if not, write to the Free
    17     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
    18 
    19     Sam Lantinga
    20     5635-34 Springhouse Dr.
    21     Pleasanton, CA 94588 (USA)
    22     slouken@devolution.com
    23 */
    24 
    25 /* This is a BMP image file loading framework */
    26 
    27 #include <stdio.h>
    28 #include <string.h>
    29 
    30 #include "SDL_image.h"
    31 
    32 #ifdef LOAD_BMP
    33 
    34 /* See if an image is contained in a data source */
    35 int IMG_isBMP(SDL_RWops *src)
    36 {
    37 	int is_BMP;
    38 	char magic[2];
    39 
    40 	is_BMP = 0;
    41 	if ( SDL_RWread(src, magic, 2, 1) ) {
    42 		if ( strncmp(magic, "BM", 2) == 0 ) {
    43 			is_BMP = 1;
    44 		}
    45 	}
    46 	return(is_BMP);
    47 }
    48 
    49 /* Load a BMP type image from an SDL datasource */
    50 SDL_Surface *IMG_LoadBMP_RW(SDL_RWops *src)
    51 {
    52 	return(SDL_LoadBMP_RW(src, 0));
    53 }
    54 
    55 #else
    56 
    57 /* See if an image is contained in a data source */
    58 int IMG_isBMP(SDL_RWops *src)
    59 {
    60 	return(0);
    61 }
    62 
    63 /* Load a BMP type image from an SDL datasource */
    64 SDL_Surface *IMG_LoadBMP_RW(SDL_RWops *src)
    65 {
    66 	return(NULL);
    67 }
    68 
    69 #endif /* LOAD_BMP */