Mercurial > sdl-ios-xcode
annotate include/SDL_version.h @ 3302:bdeb16e22de8
Getting ready for a new Xcode project from Eric Wing
author | Sam Lantinga <slouken@libsdl.org> |
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date | Thu, 24 Sep 2009 07:12:05 +0000 |
parents | 972a69e47cd9 |
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0 | 1 /* |
2 SDL - Simple DirectMedia Layer | |
2859 | 3 Copyright (C) 1997-2009 Sam Lantinga |
0 | 4 |
5 This library is free software; you can redistribute it and/or | |
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6 modify it under the terms of the GNU Lesser General Public |
0 | 7 License as published by the Free Software Foundation; either |
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8 version 2.1 of the License, or (at your option) any later version. |
0 | 9 |
10 This library is distributed in the hope that it will be useful, | |
11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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13 Lesser General Public License for more details. |
0 | 14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
0 | 18 |
19 Sam Lantinga | |
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20 slouken@libsdl.org |
0 | 21 */ |
22 | |
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23 /** |
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24 * \file SDL_version.h |
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25 * |
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26 * This header defines the current SDL version |
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27 */ |
0 | 28 |
29 #ifndef _SDL_version_h | |
30 #define _SDL_version_h | |
31 | |
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32 #include "SDL_stdinc.h" |
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33 #include "SDL_revision.h" |
0 | 34 |
35 #include "begin_code.h" | |
36 /* Set up for C function definitions, even when using C++ */ | |
37 #ifdef __cplusplus | |
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38 /* *INDENT-OFF* */ |
0 | 39 extern "C" { |
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40 /* *INDENT-ON* */ |
0 | 41 #endif |
42 | |
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43 /** |
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44 * \struct SDL_version |
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45 * \brief Information the version of SDL in use. |
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46 * |
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47 * Represents the library's version as three levels: major revision |
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48 * (increments with massive changes, additions, and enhancements), |
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49 * minor revision (increments with backwards-compatible changes to the |
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50 * major revision), and patchlevel (increments with fixes to the minor |
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51 * revision). |
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52 * |
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53 * \sa SDL_VERSION |
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54 * \sa SDL_GetVersion |
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55 */ |
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56 typedef struct SDL_version |
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57 { |
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58 Uint8 major; /**< major version */ |
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59 Uint8 minor; /**< minor version */ |
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60 Uint8 patch; /**< update version */ |
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61 } SDL_version; |
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62 |
0 | 63 /* Printable format: "%d.%d.%d", MAJOR, MINOR, PATCHLEVEL |
64 */ | |
65 #define SDL_MAJOR_VERSION 1 | |
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66 #define SDL_MINOR_VERSION 3 |
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67 #define SDL_PATCHLEVEL 0 |
0 | 68 |
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69 /** |
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70 * \def SDL_VERSION(x) |
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71 * \brief Macro to determine SDL version program was compiled against. |
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72 * |
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73 * This macro fills in a SDL_version structure with the version of the |
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74 * library you compiled against. This is determined by what header the |
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75 * compiler uses. Note that if you dynamically linked the library, you might |
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76 * have a slightly newer or older version at runtime. That version can be |
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77 * determined with SDL_GetVersion(), which, unlike SDL_VERSION, |
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78 * is not a macro. |
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79 * |
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80 * \param x A pointer to a SDL_version struct to initialize. |
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81 * |
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82 * \sa SDL_version |
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83 * \sa SDL_GetVersion |
0 | 84 */ |
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85 #define SDL_VERSION(x) \ |
0 | 86 { \ |
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87 (x)->major = SDL_MAJOR_VERSION; \ |
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88 (x)->minor = SDL_MINOR_VERSION; \ |
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89 (x)->patch = SDL_PATCHLEVEL; \ |
0 | 90 } |
91 | |
92 /* This macro turns the version numbers into a numeric value: | |
93 (1,2,3) -> (1203) | |
94 This assumes that there will never be more than 100 patchlevels | |
95 */ | |
96 #define SDL_VERSIONNUM(X, Y, Z) \ | |
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97 ((X)*1000 + (Y)*100 + (Z)) |
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99 /* This is the version number macro for the current SDL version */ | |
100 #define SDL_COMPILEDVERSION \ | |
101 SDL_VERSIONNUM(SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_PATCHLEVEL) | |
102 | |
103 /* This macro will evaluate to true if compiled with SDL at least X.Y.Z */ | |
104 #define SDL_VERSION_ATLEAST(X, Y, Z) \ | |
105 (SDL_COMPILEDVERSION >= SDL_VERSIONNUM(X, Y, Z)) | |
106 | |
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107 /** |
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108 * \fn void SDL_GetVersion(SDL_version *ver) |
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109 * \brief Get the version of SDL that is linked against your program. |
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110 * |
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111 * If you are using a shared library (DLL) version of SDL, then it is |
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112 * possible that it will be different than the version you compiled against. |
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113 * |
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114 * This is a real function; the macro SDL_VERSION tells you what version |
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115 * of SDL you compiled against: |
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116 * |
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117 * \code |
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118 * SDL_version compiled; |
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119 * SDL_version linked; |
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120 * |
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121 * SDL_VERSION(&compiled); |
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122 * SDL_GetVersion(&linked); |
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123 * printf("We compiled against SDL version %d.%d.%d ...\n", |
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124 * compiled.major, compiled.minor, compiled.patch); |
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125 * printf("But we linked against SDL version %d.%d.%d.\n", |
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126 * linked.major, linked.minor, linked.patch); |
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127 * \endcode |
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128 * |
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129 * This function may be called safely at any time, even before SDL_Init(). |
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130 * |
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131 * \sa SDL_VERSION |
0 | 132 */ |
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133 extern DECLSPEC void SDLCALL SDL_GetVersion(SDL_version * ver); |
0 | 134 |
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135 /** |
2996 | 136 * \fn int SDL_GetRevision(void) |
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137 * \brief Get the code revision of SDL that is linked against your program. |
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138 */ |
2996 | 139 extern DECLSPEC int SDLCALL SDL_GetRevision(void); |
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140 |
0 | 141 /* Ends C function definitions when using C++ */ |
142 #ifdef __cplusplus | |
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143 /* *INDENT-OFF* */ |
0 | 144 } |
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145 /* *INDENT-ON* */ |
0 | 146 #endif |
147 #include "close_code.h" | |
148 | |
149 #endif /* _SDL_version_h */ | |
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150 |
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151 /* vi: set ts=4 sw=4 expandtab: */ |