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      1 /*
      2   Simple DirectMedia Layer
      3   Copyright (C) 1997-2014 Sam Lantinga <slouken (at) 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 #ifndef _SDL_main_h
     23 #define _SDL_main_h
     24 
     25 #include "SDL_stdinc.h"
     26 
     27 /**
     28  *  \file SDL_main.h
     29  *
     30  *  Redefine main() on some platforms so that it is called by SDL.
     31  */
     32 
     33 #ifndef SDL_MAIN_HANDLED
     34 #if defined(__WIN32__)
     35 /* On Windows SDL provides WinMain(), which parses the command line and passes
     36    the arguments to your main function.
     37 
     38    If you provide your own WinMain(), you may define SDL_MAIN_HANDLED
     39  */
     40 #define SDL_MAIN_AVAILABLE
     41 
     42 #elif defined(__IPHONEOS__)
     43 /* On iOS SDL provides a main function that creates an application delegate
     44    and starts the iOS application run loop.
     45 
     46    See src/video/uikit/SDL_uikitappdelegate.m for more details.
     47  */
     48 #define SDL_MAIN_NEEDED
     49 
     50 #elif defined(__ANDROID__)
     51 /* On Android SDL provides a Java class in SDLActivity.java that is the
     52    main activity entry point.
     53 
     54    See README-android.txt for more details on extending that class.
     55  */
     56 #define SDL_MAIN_NEEDED
     57 
     58 #endif
     59 #endif /* SDL_MAIN_HANDLED */
     60 
     61 #ifdef __cplusplus
     62 #define C_LINKAGE   "C"
     63 #else
     64 #define C_LINKAGE
     65 #endif /* __cplusplus */
     66 
     67 /**
     68  *  \file SDL_main.h
     69  *
     70  *  The application's main() function must be called with C linkage,
     71  *  and should be declared like this:
     72  *  \code
     73  *  #ifdef __cplusplus
     74  *  extern "C"
     75  *  #endif
     76  *  int main(int argc, char *argv[])
     77  *  {
     78  *  }
     79  *  \endcode
     80  */
     81 
     82 #if defined(SDL_MAIN_NEEDED) || defined(SDL_MAIN_AVAILABLE)
     83 #define main    SDL_main
     84 #endif
     85 
     86 /**
     87  *  The prototype for the application's main() function
     88  */
     89 extern C_LINKAGE int SDL_main(int argc, char *argv[]);
     90 
     91 
     92 #include "begin_code.h"
     93 #ifdef __cplusplus
     94 extern "C" {
     95 #endif
     96 
     97 /**
     98  *  This is called by the real SDL main function to let the rest of the
     99  *  library know that initialization was done properly.
    100  *
    101  *  Calling this yourself without knowing what you're doing can cause
    102  *  crashes and hard to diagnose problems with your application.
    103  */
    104 extern DECLSPEC void SDLCALL SDL_SetMainReady(void);
    105 
    106 #ifdef __WIN32__
    107 
    108 /**
    109  *  This can be called to set the application class at startup
    110  */
    111 extern DECLSPEC int SDLCALL SDL_RegisterApp(char *name, Uint32 style,
    112                                             void *hInst);
    113 extern DECLSPEC void SDLCALL SDL_UnregisterApp(void);
    114 
    115 #endif /* __WIN32__ */
    116 
    117 
    118 #ifdef __cplusplus
    119 }
    120 #endif
    121 #include "close_code.h"
    122 
    123 #endif /* _SDL_main_h */
    124 
    125 /* vi: set ts=4 sw=4 expandtab: */
    126