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SDL_sysfilesystem.m (4570B)

      1 /*
      2   Simple DirectMedia Layer
      3   Copyright (C) 1997-2020 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 #include "../../SDL_internal.h"
     22 
     23 #ifdef SDL_FILESYSTEM_COCOA
     24 
     25 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
     26 /* System dependent filesystem routines                                */
     27 
     28 #include <Foundation/Foundation.h>
     29 #include <sys/stat.h>
     30 #include <sys/types.h>
     31 
     32 #include "SDL_error.h"
     33 #include "SDL_stdinc.h"
     34 #include "SDL_filesystem.h"
     35 
     36 char *
     37 SDL_GetBasePath(void)
     38 { @autoreleasepool
     39 {
     40     NSBundle *bundle = [NSBundle mainBundle];
     41     const char* baseType = [[[bundle infoDictionary] objectForKey:@"SDL_FILESYSTEM_BASE_DIR_TYPE"] UTF8String];
     42     const char *base = NULL;
     43     char *retval = NULL;
     44 
     45     if (baseType == NULL) {
     46         baseType = "resource";
     47     }
     48     if (SDL_strcasecmp(baseType, "bundle")==0) {
     49         base = [[bundle bundlePath] fileSystemRepresentation];
     50     } else if (SDL_strcasecmp(baseType, "parent")==0) {
     51         base = [[[bundle bundlePath] stringByDeletingLastPathComponent] fileSystemRepresentation];
     52     } else {
     53         /* this returns the exedir for non-bundled  and the resourceDir for bundled apps */
     54         base = [[bundle resourcePath] fileSystemRepresentation];
     55     }
     56 
     57     if (base) {
     58         const size_t len = SDL_strlen(base) + 2;
     59         retval = (char *) SDL_malloc(len);
     60         if (retval == NULL) {
     61             SDL_OutOfMemory();
     62         } else {
     63             SDL_snprintf(retval, len, "%s/", base);
     64         }
     65     }
     66 
     67     return retval;
     68 }}
     69 
     70 char *
     71 SDL_GetPrefPath(const char *org, const char *app)
     72 { @autoreleasepool
     73 {
     74     if (!app) {
     75         SDL_InvalidParamError("app");
     76         return NULL;
     77     }
     78     if (!org) {
     79         org = "";
     80     }
     81 
     82     char *retval = NULL;
     83 #if !TARGET_OS_TV
     84     NSArray *array = NSSearchPathForDirectoriesInDomains(NSApplicationSupportDirectory, NSUserDomainMask, YES);
     85 #else
     86     /* tvOS does not have persistent local storage!
     87      * The only place on-device where we can store data is
     88      * a cache directory that the OS can empty at any time.
     89      *
     90      * It's therefore very likely that save data will be erased
     91      * between sessions. If you want your app's save data to
     92      * actually stick around, you'll need to use iCloud storage.
     93      */
     94 
     95     static SDL_bool shown = SDL_FALSE;
     96     if (!shown)
     97     {
     98         shown = SDL_TRUE;
     99         SDL_LogCritical(SDL_LOG_CATEGORY_SYSTEM, "tvOS does not have persistent local storage! Use iCloud storage if you want your data to persist between sessions.\n");
    100     }
    101 
    102     NSArray *array = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES);
    103 #endif /* !TARGET_OS_TV */
    104 
    105     if ([array count] > 0) {  /* we only want the first item in the list. */
    106         NSString *str = [array objectAtIndex:0];
    107         const char *base = [str fileSystemRepresentation];
    108         if (base) {
    109             const size_t len = SDL_strlen(base) + SDL_strlen(org) + SDL_strlen(app) + 4;
    110             retval = (char *) SDL_malloc(len);
    111             if (retval == NULL) {
    112                 SDL_OutOfMemory();
    113             } else {
    114                 char *ptr;
    115                 if (*org) {
    116                     SDL_snprintf(retval, len, "%s/%s/%s/", base, org, app);
    117                 } else {
    118                     SDL_snprintf(retval, len, "%s/%s/", base, app);
    119                 }
    120                 for (ptr = retval+1; *ptr; ptr++) {
    121                     if (*ptr == '/') {
    122                         *ptr = '\0';
    123                         mkdir(retval, 0700);
    124                         *ptr = '/';
    125                     }
    126                 }
    127                 mkdir(retval, 0700);
    128             }
    129         }
    130     }
    131 
    132     return retval;
    133 }}
    134 
    135 #endif /* SDL_FILESYSTEM_COCOA */
    136 
    137 /* vi: set ts=4 sw=4 expandtab: */