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1/*
2 Simple DirectMedia Layer
3 Copyright (C) 1997-2024 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
36extern "C" {
37#endif
38
39/**
40 * Information about 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 */
51typedef 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 30
62#define SDL_PATCHLEVEL 2
63
64/**
65 * 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/* TODO: Remove this whole block in SDL 3 */
87#if SDL_MAJOR_VERSION < 3
88/**
89 * This macro turns the version numbers into a numeric value:
90 * \verbatim
91 (1,2,3) -> (1203)
92 \endverbatim
93 *
94 * This assumes that there will never be more than 100 patchlevels.
95 *
96 * In versions higher than 2.9.0, the minor version overflows into
97 * the thousands digit: for example, 2.23.0 is encoded as 4300,
98 * and 2.255.99 would be encoded as 25799.
99 * This macro will not be available in SDL 3.x.
100 */
101#define SDL_VERSIONNUM(X, Y, Z) \
102 ((X)*1000 + (Y)*100 + (Z))
103
104/**
105 * This is the version number macro for the current SDL version.
106 *
107 * In versions higher than 2.9.0, the minor version overflows into
108 * the thousands digit: for example, 2.23.0 is encoded as 4300.
109 * This macro will not be available in SDL 3.x.
110 *
111 * Deprecated, use SDL_VERSION_ATLEAST or SDL_VERSION instead.
112 */
113#define SDL_COMPILEDVERSION \
114 SDL_VERSIONNUM(SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_PATCHLEVEL)
115#endif /* SDL_MAJOR_VERSION < 3 */
116
117/**
118 * This macro will evaluate to true if compiled with SDL at least X.Y.Z.
119 */
120#define SDL_VERSION_ATLEAST(X, Y, Z) \
121 ((SDL_MAJOR_VERSION >= X) && \
122 (SDL_MAJOR_VERSION > X || SDL_MINOR_VERSION >= Y) && \
123 (SDL_MAJOR_VERSION > X || SDL_MINOR_VERSION > Y || SDL_PATCHLEVEL >= Z))
124
125/**
126 * Get the version of SDL that is linked against your program.
127 *
128 * If you are linking to SDL dynamically, then it is possible that the current
129 * version will be different than the version you compiled against. This
130 * function returns the current version, while SDL_VERSION() is a macro that
131 * tells you what version you compiled with.
132 *
133 * This function may be called safely at any time, even before SDL_Init().
134 *
135 * \param ver the SDL_version structure that contains the version information
136 *
137 * \since This function is available since SDL 2.0.0.
138 *
139 * \sa SDL_GetRevision
140 */
141extern DECLSPEC void SDLCALL SDL_GetVersion(SDL_version * ver);
142
143/**
144 * Get the code revision of SDL that is linked against your program.
145 *
146 * This value is the revision of the code you are linked with and may be
147 * different from the code you are compiling with, which is found in the
148 * constant SDL_REVISION.
149 *
150 * The revision is arbitrary string (a hash value) uniquely identifying the
151 * exact revision of the SDL library in use, and is only useful in comparing
152 * against other revisions. It is NOT an incrementing number.
153 *
154 * If SDL wasn't built from a git repository with the appropriate tools, this
155 * will return an empty string.
156 *
157 * Prior to SDL 2.0.16, before development moved to GitHub, this returned a
158 * hash for a Mercurial repository.
159 *
160 * You shouldn't use this function for anything but logging it for debugging
161 * purposes. The string is not intended to be reliable in any way.
162 *
163 * \returns an arbitrary string, uniquely identifying the exact revision of
164 * the SDL library in use.
165 *
166 * \since This function is available since SDL 2.0.0.
167 *
168 * \sa SDL_GetVersion
169 */
170extern DECLSPEC const char *SDLCALL SDL_GetRevision(void);
171
172/**
173 * Obsolete function, do not use.
174 *
175 * When SDL was hosted in a Mercurial repository, and was built carefully,
176 * this would return the revision number that the build was created from. This
177 * number was not reliable for several reasons, but more importantly, SDL is
178 * now hosted in a git repository, which does not offer numbers at all, only
179 * hashes. This function only ever returns zero now. Don't use it.
180 *
181 * Before SDL 2.0.16, this might have returned an unreliable, but non-zero
182 * number.
183 *
184 * \deprecated Use SDL_GetRevision() instead; if SDL was carefully built, it
185 * will return a git hash.
186 *
187 * \returns zero, always, in modern SDL releases.
188 *
189 * \since This function is available since SDL 2.0.0.
190 *
191 * \sa SDL_GetRevision
192 */
193extern SDL_DEPRECATED DECLSPEC int SDLCALL SDL_GetRevisionNumber(void);
194
195
196/* Ends C function definitions when using C++ */
197#ifdef __cplusplus
198}
199#endif
200#include "close_code.h"
201
202#endif /* SDL_version_h_ */
203
204/* vi: set ts=4 sw=4 expandtab: */