git.r.bdr.sh - rbdr/super-polarity/blob - vendor/frameworks/SDL2.framework/Versions/A/Headers/SDL_version.h

   1 /*
   2   Simple DirectMedia Layer
   3   Copyright (C) 1997-2013 Sam Lantinga <slouken@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 /**
  23  *  \file SDL_version.h
  24  *
  25  *  This header defines the current SDL version.
  26  */
  27
  28 #ifndef _SDL_version_h
  29 #define _SDL_version_h
  30
  31 #include "SDL_stdinc.h"
  32
  33 #include "begin_code.h"
  34 /* Set up for C function definitions, even when using C++ */
  35 #ifdef __cplusplus
  36 extern "C" {
  37 #endif
  38
  39 /**
  40  *  \brief Information the version of SDL in use.
  41  *
  42  *  Represents the library's version as three levels: major revision
  43  *  (increments with massive changes, additions, and enhancements),
  44  *  minor revision (increments with backwards-compatible changes to the
  45  *  major revision), and patchlevel (increments with fixes to the minor
  46  *  revision).
  47  *
  48  *  \sa SDL_VERSION
  49  *  \sa SDL_GetVersion
  50  */
  51 typedef struct SDL_version
  52 {
  53     Uint8 major;        /**< major version */
  54     Uint8 minor;        /**< minor version */
  55     Uint8 patch;        /**< update version */
  56 } SDL_version;
  57
  58 /* Printable format: "%d.%d.%d", MAJOR, MINOR, PATCHLEVEL
  59 */
  60 #define SDL_MAJOR_VERSION   2
  61 #define SDL_MINOR_VERSION   0
  62 #define SDL_PATCHLEVEL      0
  63
  64 /**
  65  *  \brief Macro to determine SDL version program was compiled against.
  66  *
  67  *  This macro fills in a SDL_version structure with the version of the
  68  *  library you compiled against. This is determined by what header the
  69  *  compiler uses. Note that if you dynamically linked the library, you might
  70  *  have a slightly newer or older version at runtime. That version can be
  71  *  determined with SDL_GetVersion(), which, unlike SDL_VERSION(),
  72  *  is not a macro.
  73  *
  74  *  \param x A pointer to a SDL_version struct to initialize.
  75  *
  76  *  \sa SDL_version
  77  *  \sa SDL_GetVersion
  78  */
  79 #define SDL_VERSION(x)                          \
  80 {                                   \
  81     (x)->major = SDL_MAJOR_VERSION;                 \
  82     (x)->minor = SDL_MINOR_VERSION;                 \
  83     (x)->patch = SDL_PATCHLEVEL;                    \
  84 }
  85
  86 /**
  87  *  This macro turns the version numbers into a numeric value:
  88  *  \verbatim
  89     (1,2,3) -> (1203)
  90     \endverbatim
  91  *
  92  *  This assumes that there will never be more than 100 patchlevels.
  93  */
  94 #define SDL_VERSIONNUM(X, Y, Z)                     \
  95     ((X)*1000 + (Y)*100 + (Z))
  96
  97 /**
  98  *  This is the version number macro for the current SDL version.
  99  */
 100 #define SDL_COMPILEDVERSION \
 101     SDL_VERSIONNUM(SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_PATCHLEVEL)
 102
 103 /**
 104  *  This macro will evaluate to true if compiled with SDL at least X.Y.Z.
 105  */
 106 #define SDL_VERSION_ATLEAST(X, Y, Z) \
 107     (SDL_COMPILEDVERSION >= SDL_VERSIONNUM(X, Y, Z))
 108
 109 /**
 110  *  \brief Get the version of SDL that is linked against your program.
 111  *
 112  *  If you are linking to SDL dynamically, then it is possible that the
 113  *  current version will be different than the version you compiled against.
 114  *  This function returns the current version, while SDL_VERSION() is a
 115  *  macro that tells you what version you compiled with.
 116  *
 117  *  \code
 118  *  SDL_version compiled;
 119  *  SDL_version linked;
 120  *
 121  *  SDL_VERSION(&compiled);
 122  *  SDL_GetVersion(&linked);
 123  *  printf("We compiled against SDL version %d.%d.%d ...\n",
 124  *         compiled.major, compiled.minor, compiled.patch);
 125  *  printf("But we linked against SDL version %d.%d.%d.\n",
 126  *         linked.major, linked.minor, linked.patch);
 127  *  \endcode
 128  *
 129  *  This function may be called safely at any time, even before SDL_Init().
 130  *
 131  *  \sa SDL_VERSION
 132  */
 133 extern DECLSPEC void SDLCALL SDL_GetVersion(SDL_version * ver);
 134
 135 /**
 136  *  \brief Get the code revision of SDL that is linked against your program.
 137  *
 138  *  Returns an arbitrary string (a hash value) uniquely identifying the
 139  *  exact revision of the SDL library in use, and is only useful in comparing
 140  *  against other revisions. It is NOT an incrementing number.
 141  */
 142 extern DECLSPEC const char *SDLCALL SDL_GetRevision(void);
 143
 144 /**
 145  *  \brief Get the revision number of SDL that is linked against your program.
 146  *
 147  *  Returns a number uniquely identifying the exact revision of the SDL
 148  *  library in use. It is an incrementing number based on commits to
 149  *  hg.libsdl.org.
 150  */
 151 extern DECLSPEC int SDLCALL SDL_GetRevisionNumber(void);
 152
 153
 154 /* Ends C function definitions when using C++ */
 155 #ifdef __cplusplus
 156 }
 157 #endif
 158 #include "close_code.h"
 159
 160 #endif /* _SDL_version_h */
 161
 162 /* vi: set ts=4 sw=4 expandtab: */