IMG_xxx.c
author Sam Lantinga <slouken@libsdl.org>
Sun, 01 Jan 2017 18:50:51 -0800
changeset 496 6332f9425dcc
parent 486 7bb8af91e887
child 528 7f9e88f4b45e
permissions -rw-r--r--
Updated copyright for 2017
     1 /*
     2   SDL_image:  An example image loading library for use with SDL
     3   Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org>
     4 
     5   This software is provided 'as-is', without any express or implied
     6   warranty.  In no event will the authors be held liable for any damages
     7   arising from the use of this software.
     8 
     9   Permission is granted to anyone to use this software for any purpose,
    10   including commercial applications, and to alter it and redistribute it
    11   freely, subject to the following restrictions:
    12 
    13   1. The origin of this software must not be misrepresented; you must not
    14      claim that you wrote the original software. If you use this software
    15      in a product, an acknowledgment in the product documentation would be
    16      appreciated but is not required.
    17   2. Altered source versions must be plainly marked as such, and must not be
    18      misrepresented as being the original software.
    19   3. This notice may not be removed or altered from any source distribution.
    20 */
    21 
    22 /* This is a generic "format not supported" image framework */
    23 
    24 #include <stdio.h>
    25 
    26 #include "SDL_image.h"
    27 
    28 #ifdef LOAD_XXX
    29 
    30 /* See if an image is contained in a data source */
    31 int IMG_isXXX(SDL_RWops *src)
    32 {
    33     int start;
    34     int is_XXX;
    35 
    36     if ( !src )
    37         return 0;
    38     start = SDL_RWtell(src);
    39     is_XXX = 0;
    40 
    41     /* Detect the image here */
    42 
    43     SDL_RWseek(src, start, RW_SEEK_SET);
    44     return(is_XXX);
    45 }
    46 
    47 /* Load a XXX type image from an SDL datasource */
    48 SDL_Surface *IMG_LoadXXX_RW(SDL_RWops *src)
    49 {
    50     int start;
    51     const char *error = NULL;
    52     SDL_Surface *surface = NULL;
    53 
    54     if ( !src ) {
    55         /* The error message has been set in SDL_RWFromFile */
    56         return NULL;
    57     }
    58     start = SDL_RWtell(src);
    59 
    60     /* Load the image here */
    61 
    62     if ( error ) {
    63         SDL_RWseek(src, start, RW_SEEK_SET);
    64         if ( surface ) {
    65             SDL_FreeSurface(surface);
    66             surface = NULL;
    67         }
    68         IMG_SetError("%s", error);
    69     }
    70     return surface;
    71 }
    72 
    73 #else
    74 
    75 /* See if an image is contained in a data source */
    76 int IMG_isXXX(SDL_RWops *src)
    77 {
    78     return(0);
    79 }
    80 
    81 /* Load a XXX type image from an SDL datasource */
    82 SDL_Surface *IMG_LoadXXX_RW(SDL_RWops *src)
    83 {
    84     return(NULL);
    85 }
    86 
    87 #endif /* LOAD_XXX */