Mercurial > sdl-ios-xcode
annotate src/SDL.c @ 281:c5010ab8ba35
Added initial support for Atari (thanks Patrice!)
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sun, 17 Feb 2002 19:54:28 +0000 |
parents | e8157fcb3114 |
children | f6ffac90895c |
rev | line source |
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0 | 1 /* |
2 SDL - Simple DirectMedia Layer | |
3 Copyright (C) 1997, 1998, 1999, 2000, 2001 Sam Lantinga | |
4 | |
5 This library is free software; you can redistribute it and/or | |
6 modify it under the terms of the GNU Library General Public | |
7 License as published by the Free Software Foundation; either | |
8 version 2 of the License, or (at your option) any later version. | |
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 | |
13 Library General Public License for more details. | |
14 | |
15 You should have received a copy of the GNU Library General Public | |
16 License along with this library; if not, write to the Free | |
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
18 | |
19 Sam Lantinga | |
252
e8157fcb3114
Updated the source with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
parents:
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20 slouken@libsdl.org |
0 | 21 */ |
22 | |
23 #ifdef SAVE_RCSID | |
24 static char rcsid = | |
25 "@(#) $Id$"; | |
26 #endif | |
27 | |
28 /* Initialization code for SDL */ | |
29 | |
30 #include <stdlib.h> /* For getenv() */ | |
31 | |
32 #include "SDL.h" | |
33 #include "SDL_endian.h" | |
34 #include "SDL_fatal.h" | |
35 #ifndef DISABLE_VIDEO | |
36 #include "SDL_leaks.h" | |
37 #endif | |
38 | |
39 /* Initialization/Cleanup routines */ | |
40 #ifndef DISABLE_JOYSTICK | |
41 extern int SDL_JoystickInit(void); | |
42 extern void SDL_JoystickQuit(void); | |
43 #endif | |
44 #ifndef DISABLE_CDROM | |
45 extern int SDL_CDROMInit(void); | |
46 extern void SDL_CDROMQuit(void); | |
47 #endif | |
48 #ifndef DISABLE_TIMERS | |
49 extern void SDL_StartTicks(void); | |
50 extern int SDL_TimerInit(void); | |
51 extern void SDL_TimerQuit(void); | |
52 #endif | |
53 | |
54 /* The current SDL version */ | |
55 static SDL_version version = | |
56 { SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_PATCHLEVEL }; | |
57 | |
58 /* The initialized subsystems */ | |
59 static Uint32 SDL_initialized = 0; | |
60 static Uint32 ticks_started = 0; | |
61 | |
62 #ifdef CHECK_LEAKS | |
63 int surfaces_allocated = 0; | |
64 #endif | |
65 | |
66 int SDL_InitSubSystem(Uint32 flags) | |
67 { | |
68 #ifndef DISABLE_VIDEO | |
69 /* Initialize the video/event subsystem */ | |
70 if ( (flags & SDL_INIT_VIDEO) && !(SDL_initialized & SDL_INIT_VIDEO) ) { | |
71 if ( SDL_VideoInit(getenv("SDL_VIDEODRIVER"), | |
72 (flags&SDL_INIT_EVENTTHREAD)) < 0 ) { | |
73 return(-1); | |
74 } | |
75 SDL_initialized |= SDL_INIT_VIDEO; | |
76 } | |
77 #else | |
78 if ( flags & SDL_INIT_VIDEO ) { | |
79 SDL_SetError("SDL not built with video support"); | |
80 return(-1); | |
81 } | |
82 #endif | |
83 | |
84 #ifndef DISABLE_AUDIO | |
85 /* Initialize the audio subsystem */ | |
86 if ( (flags & SDL_INIT_AUDIO) && !(SDL_initialized & SDL_INIT_AUDIO) ) { | |
87 if ( SDL_AudioInit(getenv("SDL_AUDIODRIVER")) < 0 ) { | |
88 return(-1); | |
89 } | |
90 SDL_initialized |= SDL_INIT_AUDIO; | |
91 } | |
92 #else | |
93 if ( flags & SDL_INIT_AUDIO ) { | |
94 SDL_SetError("SDL not built with audio support"); | |
95 return(-1); | |
96 } | |
97 #endif | |
98 | |
99 #ifndef DISABLE_TIMERS | |
100 /* Initialize the timer subsystem */ | |
101 if ( ! ticks_started ) { | |
102 SDL_StartTicks(); | |
103 ticks_started = 1; | |
104 } | |
105 if ( (flags & SDL_INIT_TIMER) && !(SDL_initialized & SDL_INIT_TIMER) ) { | |
106 if ( SDL_TimerInit() < 0 ) { | |
107 return(-1); | |
108 } | |
109 SDL_initialized |= SDL_INIT_TIMER; | |
110 } | |
111 #else | |
112 if ( flags & SDL_INIT_TIMER ) { | |
113 SDL_SetError("SDL not built with timer support"); | |
114 return(-1); | |
115 } | |
116 #endif | |
117 | |
118 #ifndef DISABLE_JOYSTICK | |
119 /* Initialize the joystick subsystem */ | |
120 if ( (flags & SDL_INIT_JOYSTICK) && | |
121 !(SDL_initialized & SDL_INIT_JOYSTICK) ) { | |
122 if ( SDL_JoystickInit() < 0 ) { | |
123 return(-1); | |
124 } | |
125 SDL_initialized |= SDL_INIT_JOYSTICK; | |
126 } | |
127 #else | |
128 if ( flags & SDL_INIT_JOYSTICK ) { | |
129 SDL_SetError("SDL not built with joystick support"); | |
130 return(-1); | |
131 } | |
132 #endif | |
133 | |
134 #ifndef DISABLE_CDROM | |
135 /* Initialize the CD-ROM subsystem */ | |
136 if ( (flags & SDL_INIT_CDROM) && !(SDL_initialized & SDL_INIT_CDROM) ) { | |
137 if ( SDL_CDROMInit() < 0 ) { | |
138 return(-1); | |
139 } | |
140 SDL_initialized |= SDL_INIT_CDROM; | |
141 } | |
142 #else | |
143 if ( flags & SDL_INIT_CDROM ) { | |
144 SDL_SetError("SDL not built with cdrom support"); | |
145 return(-1); | |
146 } | |
147 #endif | |
148 return(0); | |
149 } | |
150 | |
151 int SDL_Init(Uint32 flags) | |
152 { | |
153 /* Clear the error message */ | |
154 SDL_ClearError(); | |
155 | |
156 /* Initialize the desired subsystems */ | |
157 if ( SDL_InitSubSystem(flags) < 0 ) { | |
158 return(-1); | |
159 } | |
160 | |
161 /* Everything is initialized */ | |
162 if ( !(flags & SDL_INIT_NOPARACHUTE) ) { | |
163 SDL_InstallParachute(); | |
164 } | |
165 return(0); | |
166 } | |
167 | |
168 void SDL_QuitSubSystem(Uint32 flags) | |
169 { | |
170 /* Shut down requested initialized subsystems */ | |
171 #ifndef DISABLE_CDROM | |
172 if ( (flags & SDL_initialized & SDL_INIT_CDROM) ) { | |
173 SDL_CDROMQuit(); | |
174 SDL_initialized &= ~SDL_INIT_CDROM; | |
175 } | |
176 #endif | |
177 #ifndef DISABLE_JOYSTICK | |
178 if ( (flags & SDL_initialized & SDL_INIT_JOYSTICK) ) { | |
179 SDL_JoystickQuit(); | |
180 SDL_initialized &= ~SDL_INIT_JOYSTICK; | |
181 } | |
182 #endif | |
183 #ifndef DISABLE_TIMERS | |
184 if ( (flags & SDL_initialized & SDL_INIT_TIMER) ) { | |
185 SDL_TimerQuit(); | |
186 SDL_initialized &= ~SDL_INIT_TIMER; | |
187 } | |
188 #endif | |
189 #ifndef DISABLE_AUDIO | |
190 if ( (flags & SDL_initialized & SDL_INIT_AUDIO) ) { | |
191 SDL_AudioQuit(); | |
192 SDL_initialized &= ~SDL_INIT_AUDIO; | |
193 } | |
194 #endif | |
195 #ifndef DISABLE_VIDEO | |
196 if ( (flags & SDL_initialized & SDL_INIT_VIDEO) ) { | |
197 SDL_VideoQuit(); | |
198 SDL_initialized &= ~SDL_INIT_VIDEO; | |
199 } | |
200 #endif | |
201 } | |
202 | |
203 Uint32 SDL_WasInit(Uint32 flags) | |
204 { | |
205 if ( ! flags ) { | |
206 flags = SDL_INIT_EVERYTHING; | |
207 } | |
208 return (SDL_initialized&flags); | |
209 } | |
210 | |
211 void SDL_Quit(void) | |
212 { | |
213 /* Quit all subsystems */ | |
214 SDL_QuitSubSystem(SDL_INIT_EVERYTHING); | |
215 | |
216 #ifdef CHECK_LEAKS | |
217 /* Print the number of surfaces not freed */ | |
218 if ( surfaces_allocated != 0 ) { | |
219 fprintf(stderr, "SDL Warning: %d SDL surfaces extant\n", | |
220 surfaces_allocated); | |
221 } | |
222 #endif | |
223 | |
224 /* Uninstall any parachute signal handlers */ | |
225 SDL_UninstallParachute(); | |
226 } | |
227 | |
228 /* Return the library version number */ | |
229 const SDL_version * SDL_Linked_Version(void) | |
230 { | |
231 return(&version); | |
232 } | |
233 | |
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13ee9f4834ea
Windows CE patches contributed by Rainer Loritz
Sam Lantinga <slouken@lokigames.com>
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234 #if defined(_WIN32_WCE) |
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235 /* Need to include DllMain() on Windows CE for some reason.. */ |
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236 #include <windows.h> |
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237 |
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238 BOOL APIENTRY DllMain( HANDLE hModule, |
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239 DWORD ul_reason_for_call, |
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240 LPVOID lpReserved ) |
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241 { |
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242 switch (ul_reason_for_call) { |
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243 case DLL_PROCESS_ATTACH: |
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244 case DLL_THREAD_ATTACH: |
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245 case DLL_THREAD_DETACH: |
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246 case DLL_PROCESS_DETACH: |
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247 break; |
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248 } |
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249 return TRUE; |
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250 } |
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251 #endif /* _WIN32_WCE */ |