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163 lines
5.0 KiB
C
163 lines
5.0 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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/**
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* \file SDL_version.h
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*
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* This header defines the current SDL version.
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*/
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#ifndef _SDL_version_h
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#define _SDL_version_h
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#include "SDL_stdinc.h"
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#include "begin_code.h"
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/* Set up for C function definitions, even when using C++ */
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* \brief Information the version of SDL in use.
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*
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* Represents the library's version as three levels: major revision
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* (increments with massive changes, additions, and enhancements),
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* minor revision (increments with backwards-compatible changes to the
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* major revision), and patchlevel (increments with fixes to the minor
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* revision).
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*
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* \sa SDL_VERSION
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* \sa SDL_GetVersion
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*/
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typedef struct SDL_version
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{
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Uint8 major; /**< major version */
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Uint8 minor; /**< minor version */
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Uint8 patch; /**< update version */
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} SDL_version;
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/* Printable format: "%d.%d.%d", MAJOR, MINOR, PATCHLEVEL
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*/
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#define SDL_MAJOR_VERSION 2
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#define SDL_MINOR_VERSION 0
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#define SDL_PATCHLEVEL 4
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/**
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* \brief Macro to determine SDL version program was compiled against.
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*
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* This macro fills in a SDL_version structure with the version of the
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* library you compiled against. This is determined by what header the
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* compiler uses. Note that if you dynamically linked the library, you might
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* have a slightly newer or older version at runtime. That version can be
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* determined with SDL_GetVersion(), which, unlike SDL_VERSION(),
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* is not a macro.
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*
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* \param x A pointer to a SDL_version struct to initialize.
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*
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* \sa SDL_version
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* \sa SDL_GetVersion
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*/
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#define SDL_VERSION(x) \
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{ \
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(x)->major = SDL_MAJOR_VERSION; \
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(x)->minor = SDL_MINOR_VERSION; \
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(x)->patch = SDL_PATCHLEVEL; \
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}
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/**
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* This macro turns the version numbers into a numeric value:
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* \verbatim
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(1,2,3) -> (1203)
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\endverbatim
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*
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* This assumes that there will never be more than 100 patchlevels.
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*/
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#define SDL_VERSIONNUM(X, Y, Z) \
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((X)*1000 + (Y)*100 + (Z))
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/**
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* This is the version number macro for the current SDL version.
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*/
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#define SDL_COMPILEDVERSION \
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SDL_VERSIONNUM(SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_PATCHLEVEL)
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/**
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* This macro will evaluate to true if compiled with SDL at least X.Y.Z.
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*/
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#define SDL_VERSION_ATLEAST(X, Y, Z) \
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(SDL_COMPILEDVERSION >= SDL_VERSIONNUM(X, Y, Z))
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/**
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* \brief Get the version of SDL that is linked against your program.
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*
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* If you are linking to SDL dynamically, then it is possible that the
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* current version will be different than the version you compiled against.
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* This function returns the current version, while SDL_VERSION() is a
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* macro that tells you what version you compiled with.
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*
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* \code
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* SDL_version compiled;
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* SDL_version linked;
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*
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* SDL_VERSION(&compiled);
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* SDL_GetVersion(&linked);
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* printf("We compiled against SDL version %d.%d.%d ...\n",
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* compiled.major, compiled.minor, compiled.patch);
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* printf("But we linked against SDL version %d.%d.%d.\n",
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* linked.major, linked.minor, linked.patch);
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* \endcode
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*
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* This function may be called safely at any time, even before SDL_Init().
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*
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* \sa SDL_VERSION
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*/
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extern DECLSPEC void SDLCALL SDL_GetVersion(SDL_version * ver);
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/**
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* \brief Get the code revision of SDL that is linked against your program.
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*
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* Returns an arbitrary string (a hash value) uniquely identifying the
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* exact revision of the SDL library in use, and is only useful in comparing
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* against other revisions. It is NOT an incrementing number.
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*/
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extern DECLSPEC const char *SDLCALL SDL_GetRevision(void);
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/**
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* \brief Get the revision number of SDL that is linked against your program.
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*
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* Returns a number uniquely identifying the exact revision of the SDL
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* library in use. It is an incrementing number based on commits to
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* hg.libsdl.org.
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*/
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extern DECLSPEC int SDLCALL SDL_GetRevisionNumber(void);
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/* Ends C function definitions when using C++ */
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#ifdef __cplusplus
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}
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#endif
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#include "close_code.h"
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#endif /* _SDL_version_h */
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/* vi: set ts=4 sw=4 expandtab: */
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