/*

    SDL - Simple DirectMedia Layer

    Copyright (C) 1997-2012 Sam Lantinga

    This library is free software; you can redistribute it and/or

    modify it under the terms of the GNU Library General Public

    License as published by the Free Software Foundation; either

    version 2 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,

    but WITHOUT ANY WARRANTY; without even the implied warranty of

    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public

    License along with this library; if not, write to the Free

    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    Sam Lantinga

    slouken@libsdl.org

*/

/**

 *  @file begin_code.h

 *  This file sets things up for C dynamic library function definitions,

 *  static inlined functions, and structures aligned at 4-byte alignment.

 *  If you don't like ugly C preprocessor code, don't look at this file. :)

 */

/**

 *  @file begin_code.h

 *  This shouldn't be nested -- included it around code only.

 */

#ifdef _begin_code_h

#error Nested inclusion of begin_code.h

#endif

#define _begin_code_h

/**

 *  @def DECLSPEC

 *  Some compilers use a special export keyword

 */

#ifndef DECLSPEC

# if defined(__BEOS__) || defined(__HAIKU__)

#  if defined(__GNUC__)

#   define DECLSPEC

#  else

#   define DECLSPEC __declspec(export)

#  endif

# elif defined(__WIN32__)

#  ifdef __BORLANDC__

#   ifdef BUILD_SDL

#    define DECLSPEC

#   else

#    define DECLSPEC    __declspec(dllimport)

#   endif

#  else

#   define DECLSPEC __declspec(dllexport)

#  endif

# elif defined(__OS2__)

#  ifdef __WATCOMC__

#   ifdef BUILD_SDL

#    define DECLSPEC    __declspec(dllexport)

#   else

#    define DECLSPEC

#   endif

#  elif defined (__GNUC__) && __GNUC__ < 4

#   /* Added support for GCC-EMX <v4.x */

#   /* this is needed for XFree86/OS2 developement */

#   /* F. Ambacher(anakor@snafu.de) 05.2008 */

#   ifdef BUILD_SDL

#    define DECLSPEC    __declspec(dllexport)

#   else

#    define DECLSPEC

#   endif

#  else

#   define DECLSPEC

#  endif

# else

#  if defined(__GNUC__) && __GNUC__ >= 4

#   define DECLSPEC __attribute__ ((visibility("default")))

#  else

#   define DECLSPEC

#  endif

# endif

#endif

/**

 *  @def SDLCALL

 *  By default SDL uses the C calling convention

 */

#ifndef SDLCALL

# if defined(__WIN32__) && !defined(__GNUC__)

#  define SDLCALL __cdecl

# elif defined(__OS2__)

#  if defined (__GNUC__) && __GNUC__ < 4

#   /* Added support for GCC-EMX <v4.x */

#   /* this is needed for XFree86/OS2 developement */

#   /* F. Ambacher(anakor@snafu.de) 05.2008 */

#   define SDLCALL _cdecl

#  else

#   /* On other compilers on OS/2, we use the _System calling convention */

#   /* to be compatible with every compiler */

#   define SDLCALL _System

#  endif

# else

#  define SDLCALL

# endif

#endif /* SDLCALL */

#ifdef __SYMBIAN32__

#ifndef EKA2

#undef DECLSPEC

#define DECLSPEC

#elif !defined(__WINS__)

#undef DECLSPEC

#define DECLSPEC __declspec(dllexport)

#endif /* !EKA2 */

#endif /* __SYMBIAN32__ */

/**

 *  @file begin_code.h

 *  Force structure packing at 4 byte alignment.

 *  This is necessary if the header is included in code which has structure

 *  packing set to an alternate value, say for loading structures from disk.

 *  The packing is reset to the previous value in close_code.h

 */

#if defined(_MSC_VER) || defined(__MWERKS__) || defined(__BORLANDC__)

#ifdef _MSC_VER

#pragma warning(disable: 4103)

#endif

#ifdef __BORLANDC__

#pragma nopackwarning

#endif

#ifdef _M_X64

/* Use 8-byte alignment on 64-bit architectures, so pointers are aligned */

#pragma pack(push,8)

#else

#pragma pack(push,4)

#endif

#elif (defined(__MWERKS__) && defined(__MACOS__))

#pragma options align=mac68k4byte

#pragma enumsalwaysint on

#endif /* Compiler needs structure packing set */

/**

 *  @def SDL_INLINE_OKAY

 *  Set up compiler-specific options for inlining functions

 */

#ifndef SDL_INLINE_OKAY

#ifdef __GNUC__

#define SDL_INLINE_OKAY

#else

/* Add any special compiler-specific cases here */

#if defined(_MSC_VER) || defined(__BORLANDC__) || \

    defined(__DMC__) || defined(__SC__) || \

    defined(__WATCOMC__) || defined(__LCC__) || \

    defined(__DECC) || defined(__EABI__)

#ifndef __inline__

#define __inline__  __inline

#endif

#define SDL_INLINE_OKAY

#else

#if !defined(__MRC__) && !defined(_SGI_SOURCE)

#ifndef __inline__

#define __inline__ inline

#endif

#define SDL_INLINE_OKAY

#endif /* Not a funky compiler */

#endif /* Visual C++ */

#endif /* GNU C */

#endif /* SDL_INLINE_OKAY */

/**

 *  @def __inline__

 *  If inlining isn't supported, remove "__inline__", turning static

 *  inlined functions into static functions (resulting in code bloat

 *  in all files which include the offending header files)

 */

#ifndef SDL_INLINE_OKAY

#define __inline__

#endif

/**

 *  @def NULL

 *  Apparently this is needed by several Windows compilers

 */

#if !defined(__MACH__)

#ifndef NULL

#ifdef __cplusplus

#define NULL 0

#else

#define NULL ((void *)0)

#endif

#endif /* NULL */

#endif /* ! Mac OS X - breaks precompiled headers */