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1 | /* |
2 | SDL - Simple DirectMedia Layer | |
3 | Copyright (C) 1997-2010 Sam Lantinga | |
4 | ||
5 | This library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 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 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
16 | License along with this library; if not, write to the Free Software | |
17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
18 | ||
19 | Sam Lantinga | |
20 | slouken@libsdl.org | |
21 | */ | |
22 | // 7/31/2010 Wei Mingzhi | |
23 | // Removed everything unrated to Mac OS X Joystick support | |
24 | ||
25 | #include "SDL_config.h" | |
26 | ||
27 | /* Initialization code for SDL */ | |
28 | ||
29 | #include "SDL.h" | |
30 | #include "haptic/SDL_haptic_c.h" | |
31 | #include "joystick/SDL_joystick_c.h" | |
32 | ||
33 | /* The initialized subsystems */ | |
34 | static Uint32 SDL_initialized = 0; | |
35 | ||
36 | int | |
37 | SDL_InitSubSystem(Uint32 flags) | |
38 | { | |
39 | /* Initialize the joystick subsystem */ | |
40 | if ((flags & SDL_INIT_JOYSTICK) && !(SDL_initialized & SDL_INIT_JOYSTICK)) { | |
41 | if (SDL_JoystickInit() < 0) { | |
42 | return (-1); | |
43 | } | |
44 | SDL_initialized |= SDL_INIT_JOYSTICK; | |
45 | } | |
46 | ||
47 | /* Initialize the haptic subsystem */ | |
48 | if ((flags & SDL_INIT_HAPTIC) && !(SDL_initialized & SDL_INIT_HAPTIC)) { | |
49 | if (SDL_HapticInit() < 0) { | |
50 | return (-1); | |
51 | } | |
52 | SDL_initialized |= SDL_INIT_HAPTIC; | |
53 | } | |
54 | ||
55 | return (0); | |
56 | } | |
57 | ||
58 | int | |
59 | SDL_Init(Uint32 flags) | |
60 | { | |
61 | /* Clear the error message */ | |
62 | SDL_ClearError(); | |
63 | ||
64 | /* Initialize the desired subsystems */ | |
65 | if (SDL_InitSubSystem(flags) < 0) { | |
66 | return (-1); | |
67 | } | |
68 | ||
69 | return (0); | |
70 | } | |
71 | ||
72 | void | |
73 | SDL_QuitSubSystem(Uint32 flags) | |
74 | { | |
75 | /* Shut down requested initialized subsystems */ | |
76 | if ((flags & SDL_initialized & SDL_INIT_JOYSTICK)) { | |
77 | SDL_JoystickQuit(); | |
78 | SDL_initialized &= ~SDL_INIT_JOYSTICK; | |
79 | } | |
80 | ||
81 | if ((flags & SDL_initialized & SDL_INIT_HAPTIC)) { | |
82 | SDL_HapticQuit(); | |
83 | SDL_initialized &= ~SDL_INIT_HAPTIC; | |
84 | } | |
85 | } | |
86 | ||
87 | Uint32 | |
88 | SDL_WasInit(Uint32 flags) | |
89 | { | |
90 | if (!flags) { | |
91 | flags = SDL_INIT_EVERYTHING; | |
92 | } | |
93 | return (SDL_initialized & flags); | |
94 | } | |
95 | ||
96 | void | |
97 | SDL_Quit(void) | |
98 | { | |
99 | /* Quit all subsystems */ | |
100 | SDL_QuitSubSystem(SDL_INIT_EVERYTHING); | |
101 | } |