/*

    SDL - Simple DirectMedia Layer

    Copyright (C) 1997-2009 Sam Lantinga

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

    modify it under the terms of the GNU Lesser General Public

    License as published by the Free Software Foundation; either

    version 2.1 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

    Lesser General Public License for more details.

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

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

    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga

    slouken@libsdl.org

*/

/**

 * \file SDL_version.h

 *

 * This header defines the current SDL version

 */

#ifndef _SDL_version_h

#define _SDL_version_h

#include "SDL_stdinc.h"

#include "SDL_revision.h"

#include "begin_code.h"

/* Set up for C function definitions, even when using C++ */

#ifdef __cplusplus

/* *INDENT-OFF* */

extern "C" {

/* *INDENT-ON* */

#endif

/**

 * \struct SDL_version

 * \brief Information the version of SDL in use.

 *

 * Represents the library's version as three levels: major revision

 *  (increments with massive changes, additions, and enhancements),

 *  minor revision (increments with backwards-compatible changes to the

 *  major revision), and patchlevel (increments with fixes to the minor

 *  revision).

 *

 * \sa SDL_VERSION

 * \sa SDL_GetVersion

 */

typedef struct SDL_version

{

    Uint8 major;        /**< major version */

    Uint8 minor;        /**< minor version */

    Uint8 patch;        /**< update version */

} SDL_version;

/* Printable format: "%d.%d.%d", MAJOR, MINOR, PATCHLEVEL

*/

#define SDL_MAJOR_VERSION	1

#define SDL_MINOR_VERSION	3

#define SDL_PATCHLEVEL		0

/**

 * \def SDL_VERSION(x)

 * \brief Macro to determine SDL version program was compiled against.

 *

 * This macro fills in a SDL_version structure with the version of the

 *  library you compiled against. This is determined by what header the

 *  compiler uses. Note that if you dynamically linked the library, you might

 *  have a slightly newer or older version at runtime. That version can be

 *  determined with SDL_GetVersion(), which, unlike SDL_VERSION,

 *  is not a macro.

 *

 * \param x A pointer to a SDL_version struct to initialize.

 *

 * \sa SDL_version

 * \sa SDL_GetVersion

 */

#define SDL_VERSION(x)							\

{									\

	(x)->major = SDL_MAJOR_VERSION;					\

	(x)->minor = SDL_MINOR_VERSION;					\

	(x)->patch = SDL_PATCHLEVEL;					\

}

/* This macro turns the version numbers into a numeric value:

   (1,2,3) -> (1203)

   This assumes that there will never be more than 100 patchlevels

*/

#define SDL_VERSIONNUM(X, Y, Z)						\

	((X)*1000 + (Y)*100 + (Z))

/* This is the version number macro for the current SDL version */

#define SDL_COMPILEDVERSION \

	SDL_VERSIONNUM(SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_PATCHLEVEL)

/* This macro will evaluate to true if compiled with SDL at least X.Y.Z */

#define SDL_VERSION_ATLEAST(X, Y, Z) \

	(SDL_COMPILEDVERSION >= SDL_VERSIONNUM(X, Y, Z))

/**

 * \fn void SDL_GetVersion(SDL_version *ver)

 * \brief Get the version of SDL that is linked against your program.

 *

 * If you are using a shared library (DLL) version of SDL, then it is

 *  possible that it will be different than the version you compiled against.

 *

 * This is a real function; the macro SDL_VERSION tells you what version

 *  of SDL you compiled against:

 *

 * \code

 * SDL_version compiled;

 * SDL_version linked;

 *

 * SDL_VERSION(&compiled);

 * SDL_GetVersion(&linked);

 * printf("We compiled against SDL version %d.%d.%d ...\n",

 *           compiled.major, compiled.minor, compiled.patch);

 * printf("But we linked against SDL version %d.%d.%d.\n",

 *           linked.major, linked.minor, linked.patch);

 * \endcode

 *

 * This function may be called safely at any time, even before SDL_Init().

 *

 * \sa SDL_VERSION

 */

extern DECLSPEC void SDLCALL SDL_GetVersion(SDL_version * ver);

/**

 * \brief Get the code revision of SDL that is linked against your program.

 */

/* Ends C function definitions when using C++ */

#ifdef __cplusplus

/* *INDENT-OFF* */

}

/* *INDENT-ON* */

#endif

#include "close_code.h"

#endif /* _SDL_version_h */

/* vi: set ts=4 sw=4 expandtab: */