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annotate src/SDL.c @ 3294:470d0a416aa7

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Fixed bug #714 fuzzyTew@gmail.com 2009-03-14 15:18:45 PDT patch to change HAVE_ICONV to HAVE_ICONV_H There are two separate iconv checks in configure -- one for the header file and one for the library. include/SDL_stdinc.h uses the library define to see whether or not it should reference the types defined in the header, which naturally breaks if the library exists and the header does not.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 21 Sep 2009 11:04:01 +0000
parents a67a961e2171
children 63d4517fc4ac
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 Sam Lantinga
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4
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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
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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.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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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
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 /* Initialization code for SDL */
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25
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26 #include "SDL.h"
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27 #include "SDL_fatal.h"
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28 #if !SDL_VIDEO_DISABLED
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29 #include "video/SDL_leaks.h"
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30 #endif
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31
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32 #if SDL_THREAD_PTH
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33 #include <pth.h>
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34 #endif
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35
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36 /* Initialization/Cleanup routines */
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37 #if !SDL_JOYSTICK_DISABLED
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38 extern int SDL_JoystickInit(void);
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39 extern void SDL_JoystickQuit(void);
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40 #endif
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41 #if !SDL_HAPTIC_DISABLED
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42 extern int SDL_HapticInit(void);
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43 extern int SDL_HapticQuit(void);
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44 #endif
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45 #if !SDL_TIMERS_DISABLED
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46 extern void SDL_StartTicks(void);
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47 extern int SDL_TimerInit(void);
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48 extern void SDL_TimerQuit(void);
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49 #endif
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50 #if defined(__WIN32__)
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51 extern int SDL_HelperWindowCreate(void);
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52 extern int SDL_HelperWindowDestroy(void);
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53 #endif
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54
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55 /* The initialized subsystems */
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56 static Uint32 SDL_initialized = 0;
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57 static Uint32 ticks_started = 0;
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58
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59 #ifdef CHECK_LEAKS
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60 int surfaces_allocated = 0;
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61 #endif
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62
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63 int
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64 SDL_InitSubSystem(Uint32 flags)
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65 {
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66 #if !SDL_VIDEO_DISABLED
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67 /* Initialize the video/event subsystem */
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68 if ((flags & SDL_INIT_VIDEO) && !(SDL_initialized & SDL_INIT_VIDEO)) {
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69 if (SDL_VideoInit(NULL, (flags & SDL_INIT_EVENTTHREAD)) < 0) {
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70 return (-1);
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71 }
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72 SDL_initialized |= SDL_INIT_VIDEO;
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73 }
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74 #else
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75 if (flags & SDL_INIT_VIDEO) {
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76 SDL_SetError("SDL not built with video support");
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77 return (-1);
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78 }
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79 #endif
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80
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81 #if !SDL_AUDIO_DISABLED
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82 /* Initialize the audio subsystem */
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83 if ((flags & SDL_INIT_AUDIO) && !(SDL_initialized & SDL_INIT_AUDIO)) {
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84 if (SDL_AudioInit(NULL) < 0) {
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85 return (-1);
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86 }
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87 SDL_initialized |= SDL_INIT_AUDIO;
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88 }
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89 #else
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90 if (flags & SDL_INIT_AUDIO) {
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91 SDL_SetError("SDL not built with audio support");
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92 return (-1);
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93 }
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94 #endif
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95
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96 #if !SDL_TIMERS_DISABLED
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97 /* Initialize the timer subsystem */
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98 if (!ticks_started) {
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99 SDL_StartTicks();
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100 ticks_started = 1;
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101 }
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102 if ((flags & SDL_INIT_TIMER) && !(SDL_initialized & SDL_INIT_TIMER)) {
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103 if (SDL_TimerInit() < 0) {
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104 return (-1);
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105 }
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106 SDL_initialized |= SDL_INIT_TIMER;
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107 }
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108 #else
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109 if (flags & SDL_INIT_TIMER) {
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110 SDL_SetError("SDL not built with timer support");
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111 return (-1);
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112 }
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113 #endif
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114
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115 #if !SDL_JOYSTICK_DISABLED
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116 /* Initialize the joystick subsystem */
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117 if ((flags & SDL_INIT_JOYSTICK) && !(SDL_initialized & SDL_INIT_JOYSTICK)) {
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118 if (SDL_JoystickInit() < 0) {
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119 return (-1);
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120 }
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121 SDL_initialized |= SDL_INIT_JOYSTICK;
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122 }
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123 #else
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124 if (flags & SDL_INIT_JOYSTICK) {
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125 SDL_SetError("SDL not built with joystick support");
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126 return (-1);
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127 }
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128 #endif
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129
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130 #if !SDL_HAPTIC_DISABLED
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131 /* Initialize the haptic subsystem */
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132 if ((flags & SDL_INIT_HAPTIC) && !(SDL_initialized & SDL_INIT_HAPTIC)) {
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133 if (SDL_HapticInit() < 0) {
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134 return (-1);
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135 }
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136 SDL_initialized |= SDL_INIT_HAPTIC;
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137 }
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138 #else
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139 if (flags & SDL_INIT_HAPTIC) {
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140 SDL_SetError("SDL not built with haptic (force feedback) support");
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141 return (-1);
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142 }
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143 #endif
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144 return (0);
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145 }
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146
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147 int
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148 SDL_Init(Uint32 flags)
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149 {
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150 #if !SDL_THREADS_DISABLED && SDL_THREAD_PTH
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151 if (!pth_init()) {
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152 return -1;
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153 }
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154 #endif
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155
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156 /* Clear the error message */
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157 SDL_ClearError();
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158
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159 #if defined(__WIN32__)
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160 if (SDL_HelperWindowCreate() < 0) {
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161 return -1;
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162 }
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163 #endif
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164
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165 /* Initialize the desired subsystems */
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166 if (SDL_InitSubSystem(flags) < 0) {
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167 return (-1);
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168 }
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169
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170 /* Everything is initialized */
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171 if (!(flags & SDL_INIT_NOPARACHUTE)) {
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172 SDL_InstallParachute();
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173 }
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174 return (0);
0
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175 }
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176
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177 void
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178 SDL_QuitSubSystem(Uint32 flags)
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179 {
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180 /* Shut down requested initialized subsystems */
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181 #if !SDL_JOYSTICK_DISABLED
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182 if ((flags & SDL_initialized & SDL_INIT_JOYSTICK)) {
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183 SDL_JoystickQuit();
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184 SDL_initialized &= ~SDL_INIT_JOYSTICK;
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185 }
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186 #endif
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187 #if !SDL_HAPTIC_DISABLED
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188 if ((flags & SDL_initialized & SDL_INIT_HAPTIC)) {
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189 SDL_HapticQuit();
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190 SDL_initialized &= ~SDL_INIT_HAPTIC;
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191 }
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192 #endif
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193 #if !SDL_TIMERS_DISABLED
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194 if ((flags & SDL_initialized & SDL_INIT_TIMER)) {
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195 SDL_TimerQuit();
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196 SDL_initialized &= ~SDL_INIT_TIMER;
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197 }
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198 #endif
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199 #if !SDL_AUDIO_DISABLED
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200 if ((flags & SDL_initialized & SDL_INIT_AUDIO)) {
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201 SDL_AudioQuit();
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202 SDL_initialized &= ~SDL_INIT_AUDIO;
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203 }
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204 #endif
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205 #if !SDL_VIDEO_DISABLED
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206 if ((flags & SDL_initialized & SDL_INIT_VIDEO)) {
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207 SDL_VideoQuit();
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208 SDL_initialized &= ~SDL_INIT_VIDEO;
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209 }
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210 #endif
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211 }
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212
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213 Uint32
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214 SDL_WasInit(Uint32 flags)
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215 {
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216 if (!flags) {
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217 flags = SDL_INIT_EVERYTHING;
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218 }
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219 return (SDL_initialized & flags);
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220 }
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221
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222 void
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223 SDL_Quit(void)
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224 {
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225 /* Quit all subsystems */
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226 #ifdef DEBUG_BUILD
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227 printf("[SDL_Quit] : Enter! Calling QuitSubSystem()\n");
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228 fflush(stdout);
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229 #endif
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230
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231 #if defined(__WIN32__)
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232 SDL_HelperWindowDestroy();
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233 #endif
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234 SDL_QuitSubSystem(SDL_INIT_EVERYTHING);
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235
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236 #ifdef CHECK_LEAKS
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237 #ifdef DEBUG_BUILD
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238 printf("[SDL_Quit] : CHECK_LEAKS\n");
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239 fflush(stdout);
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240 #endif
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241
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242 /* Print the number of surfaces not freed */
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243 if (surfaces_allocated != 0) {
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244 fprintf(stderr, "SDL Warning: %d SDL surfaces extant\n",
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245 surfaces_allocated);
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246 }
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247 #endif
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248 #ifdef DEBUG_BUILD
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249 printf("[SDL_Quit] : SDL_UninstallParachute()\n");
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250 fflush(stdout);
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251 #endif
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252
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253 /* Uninstall any parachute signal handlers */
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254 SDL_UninstallParachute();
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diff changeset
255
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256 #if !SDL_THREADS_DISABLED && SDL_THREAD_PTH
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257 pth_kill();
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diff changeset
258 #endif
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259 #ifdef DEBUG_BUILD
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260 printf("[SDL_Quit] : Returning!\n");
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261 fflush(stdout);
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262 #endif
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263
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264 }
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265
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266 /* Get the library version number */
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267 void
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268 SDL_GetVersion(SDL_version * ver)
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269 {
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270 SDL_VERSION(ver);
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271 }
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272
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273 /* Get the library source revision */
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diff changeset
274 int
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275 SDL_GetRevision(void)
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276 {
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277 return SDL_REVISION;
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278 }
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279
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280 #if defined(__WIN32__)
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281
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282 #if !defined(HAVE_LIBC) || (defined(__WATCOMC__) && defined(BUILD_DLL))
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283 /* Need to include DllMain() on Watcom C for some reason.. */
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284 #define WIN32_LEAN_AND_MEAN
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285 #include <windows.h>
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286
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287 BOOL APIENTRY
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288 _DllMainCRTStartup(HANDLE hModule,
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289 DWORD ul_reason_for_call, LPVOID lpReserved)
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290 {
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291 switch (ul_reason_for_call) {
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292 case DLL_PROCESS_ATTACH:
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293 case DLL_THREAD_ATTACH:
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294 case DLL_THREAD_DETACH:
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295 case DLL_PROCESS_DETACH:
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296 break;
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297 }
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298 return TRUE;
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299 }
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300 #endif /* building DLL with Watcom C */
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301
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302 #endif /* __WIN32__ */
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303
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304 /* vi: set ts=4 sw=4 expandtab: */