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  1. /*
  2.  * src/system.c
  3.  *
  4.  * Copyright (C) 1998-2002 BigOrno (bigorno@bigorno.net). All rights reserved.
  5.  *
  6.  * The use and distribution terms for this software are contained in the file
  7.  * named README, which can be found in the root of this distribution. By
  8.  * using this software in any fashion, you are agreeing to be bound by the
  9.  * terms of this license.
  10.  *
  11.  * You must not remove this notice, or any other, from this software.
  12.  */
  13.  
  14. #include <SDL.h>
  15.  
  16. #include <signal.h>
  17.  
  18. #include "system.h"
  19. #ifdef WIN32
  20. #include "windows.h"
  21. char *sys_getbasepath (void)
  22. {
  23.    static char app_path[1024] = "";
  24.    if (app_path[0] == 0)
  25.    {
  26.       GetModuleFileName (NULL, app_path, 1024);
  27.       if (strrchr (app_path, '\\') != NULL)
  28.          *strrchr (app_path, '\\') = 0;
  29.    }
  30.    return (app_path);
  31. }
  32. #else // !WIN32
  33. #ifdef __APPLE__
  34. #include <CoreFoundation/CoreFoundation.h>
  35. #include <dlfcn.h>
  36. void MessageBox (void *handle, char *msg, char *title, int buttons)
  37. {
  38.    const void *keys[2];
  39.    const void *values[2];
  40.    SInt32 result;
  41.  
  42.    if (title == NULL)
  43.       title = "";
  44.  
  45.    keys[0] = kCFUserNotificationAlertHeaderKey;
  46.    values[0] = CFStringCreateWithCString (kCFAllocatorDefault, title, kCFStringEncodingUTF8);;
  47.  
  48.    keys[1] = kCFUserNotificationAlertMessageKey;
  49.    values[1] = CFStringCreateWithCString (kCFAllocatorDefault, msg, kCFStringEncodingUTF8);
  50.  
  51.    result = 0;
  52.    CFUserNotificationCreate
  53.    (
  54.       kCFAllocatorDefault,
  55.       0,
  56.       kCFUserNotificationPlainAlertLevel,
  57.       &result,
  58.       CFDictionaryCreate
  59.       (
  60.          0,
  61.          keys,
  62.          values,
  63.          sizeof (keys) / sizeof (*keys),
  64.          &kCFTypeDictionaryKeyCallBacks,
  65.          &kCFTypeDictionaryValueCallBacks
  66.       )
  67.    );
  68. }
  69. #define MB_OK 0
  70. char *sys_getbasepath (void)
  71. {
  72.    static char app_path[1024] = "";
  73.    if (app_path[0] == 0)
  74.    {
  75.       Dl_info addr_info;
  76.       if (dladdr (sys_getbasepath, &addr_info) == 0)
  77.          return (".");
  78.       strcpy_s (app_path, 1024, addr_info.dli_fname);
  79.       if (strrchr (app_path, '/') != NULL)
  80.          *strrchr (app_path, '/') = 0;
  81.       if (strrchr (app_path, '/') != NULL)
  82.          *strrchr (app_path, '/') = 0;
  83.       strcat_s (app_path, 1024, "/Resources");
  84.    }
  85.    return (app_path);
  86. }
  87. #else // !__APPLE__
  88. #define MessageBox(handle,msg,title,btns) fprintf (stderr, msg)
  89. #define MB_OK 0
  90. char *sys_getbasepath (void)
  91. {
  92.    return (".");
  93. }
  94. #endif // __APPLE__
  95. #endif // WIN32
  96.  
  97.  
  98. /*
  99.  * Panic
  100.  */
  101. void sys_panic (char *err, ...)
  102. {
  103.    va_list argptr;
  104.    char s[1024];
  105.  
  106.    /* prepare message */
  107.    va_start (argptr, err);
  108.    vsprintf_s (s, sizeof (s), err, argptr);
  109.    va_end (argptr);
  110.  
  111.    /* print message and die */
  112.    MessageBox (NULL, s, NULL, MB_OK);
  113.    exit (1);
  114. }
  115.  
  116.  
  117. /*
  118.  * Print a message
  119.  */
  120. void sys_printf (char *msg, ...)
  121. {
  122.    va_list argptr;
  123.    char s[2048];
  124.  
  125.    /* prepare message */
  126.    va_start (argptr, msg);
  127.    vsprintf_s (s, sizeof (s), msg, argptr);
  128.    va_end (argptr);
  129.  
  130.    MessageBox (NULL, s, NULL, MB_OK);
  131. }
  132.  
  133.  
  134. /*
  135.  * Return number of microseconds elapsed since first call
  136.  */
  137. U32 sys_gettime (void)
  138. {
  139.    static U32 ticks_base = 0;
  140.    U32 ticks;
  141.  
  142.    ticks = SDL_GetTicks ();
  143.  
  144.    if (!ticks_base)
  145.       ticks_base = ticks;
  146.  
  147.    return ticks - ticks_base;
  148. }
  149.  
  150.  
  151. /*
  152.  * Sleep a number of microseconds
  153.  */
  154. void sys_sleep (int s)
  155. {
  156.    SDL_Delay (s);
  157. }
  158.  
  159.  
  160. /*
  161.  * Initialize system
  162.  */
  163. void sys_init (int argc, char **argv)
  164. {
  165.    sysarg_init (argc, argv);
  166.    sysvid_init ();
  167.    sysjoy_init ();
  168.  
  169.     if (sysarg_args_nosound == 0)
  170.       syssnd_init ();
  171.  
  172.    atexit (sys_shutdown);
  173.    signal (SIGINT, exit);
  174.    signal (SIGTERM, exit);
  175. }
  176.  
  177.  
  178. /*
  179.  * Shutdown system
  180.  */
  181. void sys_shutdown (void)
  182. {
  183.    syssnd_shutdown ();
  184.    sysjoy_shutdown ();
  185.    sysvid_shutdown ();
  186. }
  187.