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annotate src/SDL.c @ 4966:a130bc2f0a18

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Fixed return value
author Sam Lantinga <slouken@libsdl.org>
date Fri, 07 Jan 2011 09:53:08 -0800
parents 791b3256fb22
children e8916fe9cfc8
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2010 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 #include "SDL_assert_c.h"
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29 #include "haptic/SDL_haptic_c.h"
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30 #include "joystick/SDL_joystick_c.h"
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31
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32 #if !SDL_VIDEO_DISABLED
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33 #include "video/SDL_leaks.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_TIMERS_DISABLED
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38 extern void SDL_StartTicks(void);
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39 extern int SDL_TimerInit(void);
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40 extern void SDL_TimerQuit(void);
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41 #endif
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42 #if defined(__WIN32__)
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43 extern int SDL_HelperWindowCreate(void);
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44 extern int SDL_HelperWindowDestroy(void);
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45 #endif
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46
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47
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48 /* The initialized subsystems */
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49 static Uint32 SDL_initialized = 0;
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50 static Uint32 ticks_started = 0;
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51
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52 #ifdef CHECK_LEAKS
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53 int surfaces_allocated = 0;
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54 #endif
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55
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56 int
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57 SDL_InitSubSystem(Uint32 flags)
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58 {
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59 #if !SDL_VIDEO_DISABLED
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60 /* Initialize the video/event subsystem */
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61 if ((flags & SDL_INIT_VIDEO) && !(SDL_initialized & SDL_INIT_VIDEO)) {
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62 if (SDL_VideoInit(NULL, (flags & SDL_INIT_EVENTTHREAD)) < 0) {
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63 return (-1);
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64 }
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65 SDL_initialized |= SDL_INIT_VIDEO;
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66 }
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67 #else
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68 if (flags & SDL_INIT_VIDEO) {
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69 SDL_SetError("SDL not built with video support");
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70 return (-1);
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71 }
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72 #endif
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73
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74 #if !SDL_AUDIO_DISABLED
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75 /* Initialize the audio subsystem */
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76 if ((flags & SDL_INIT_AUDIO) && !(SDL_initialized & SDL_INIT_AUDIO)) {
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77 if (SDL_AudioInit(NULL) < 0) {
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78 return (-1);
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79 }
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80 SDL_initialized |= SDL_INIT_AUDIO;
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81 }
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82 #else
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83 if (flags & SDL_INIT_AUDIO) {
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84 SDL_SetError("SDL not built with audio support");
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85 return (-1);
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86 }
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87 #endif
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88
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89 #if !SDL_TIMERS_DISABLED
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90 /* Initialize the timer subsystem */
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91 if (!ticks_started) {
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92 SDL_StartTicks();
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93 ticks_started = 1;
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94 }
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95 if ((flags & SDL_INIT_TIMER) && !(SDL_initialized & SDL_INIT_TIMER)) {
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96 if (SDL_TimerInit() < 0) {
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97 return (-1);
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98 }
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99 SDL_initialized |= SDL_INIT_TIMER;
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100 }
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101 #else
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102 if (flags & SDL_INIT_TIMER) {
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103 SDL_SetError("SDL not built with timer support");
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104 return (-1);
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105 }
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106 #endif
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107
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108 #if !SDL_JOYSTICK_DISABLED
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109 /* Initialize the joystick subsystem */
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110 if ((flags & SDL_INIT_JOYSTICK) && !(SDL_initialized & SDL_INIT_JOYSTICK)) {
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111 if (SDL_JoystickInit() < 0) {
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112 return (-1);
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113 }
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114 SDL_initialized |= SDL_INIT_JOYSTICK;
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115 }
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116 #else
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117 if (flags & SDL_INIT_JOYSTICK) {
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118 SDL_SetError("SDL not built with joystick support");
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119 return (-1);
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120 }
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121 #endif
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122
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123 #if !SDL_HAPTIC_DISABLED
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124 /* Initialize the haptic subsystem */
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125 if ((flags & SDL_INIT_HAPTIC) && !(SDL_initialized & SDL_INIT_HAPTIC)) {
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126 if (SDL_HapticInit() < 0) {
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127 return (-1);
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128 }
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129 SDL_initialized |= SDL_INIT_HAPTIC;
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130 }
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131 #else
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132 if (flags & SDL_INIT_HAPTIC) {
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133 SDL_SetError("SDL not built with haptic (force feedback) support");
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134 return (-1);
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135 }
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136 #endif
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137 return (0);
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138 }
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139
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140 int
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141 SDL_Init(Uint32 flags)
0
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142 {
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143 if (SDL_AssertionsInit() < 0) {
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144 return -1;
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145 }
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146
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147 /* Clear the error message */
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148 SDL_ClearError();
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149
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150 #if defined(__WIN32__)
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151 if (SDL_HelperWindowCreate() < 0) {
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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 /* Initialize the desired subsystems */
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157 if (SDL_InitSubSystem(flags) < 0) {
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158 return (-1);
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159 }
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160
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161 /* Everything is initialized */
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162 if (!(flags & SDL_INIT_NOPARACHUTE)) {
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163 SDL_InstallParachute();
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164 }
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165
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166 return (0);
0
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167 }
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168
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169 void
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170 SDL_QuitSubSystem(Uint32 flags)
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171 {
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172 /* Shut down requested initialized subsystems */
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173 #if !SDL_JOYSTICK_DISABLED
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174 if ((flags & SDL_initialized & SDL_INIT_JOYSTICK)) {
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175 SDL_JoystickQuit();
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176 SDL_initialized &= ~SDL_INIT_JOYSTICK;
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177 }
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178 #endif
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179 #if !SDL_HAPTIC_DISABLED
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180 if ((flags & SDL_initialized & SDL_INIT_HAPTIC)) {
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181 SDL_HapticQuit();
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182 SDL_initialized &= ~SDL_INIT_HAPTIC;
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183 }
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184 #endif
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185 #if !SDL_TIMERS_DISABLED
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186 if ((flags & SDL_initialized & SDL_INIT_TIMER)) {
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187 SDL_TimerQuit();
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188 SDL_initialized &= ~SDL_INIT_TIMER;
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189 }
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190 #endif
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191 #if !SDL_AUDIO_DISABLED
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192 if ((flags & SDL_initialized & SDL_INIT_AUDIO)) {
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193 SDL_AudioQuit();
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194 SDL_initialized &= ~SDL_INIT_AUDIO;
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195 }
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196 #endif
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197 #if !SDL_VIDEO_DISABLED
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198 if ((flags & SDL_initialized & SDL_INIT_VIDEO)) {
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199 SDL_VideoQuit();
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200 SDL_initialized &= ~SDL_INIT_VIDEO;
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201 }
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202 #endif
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203 }
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204
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205 Uint32
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206 SDL_WasInit(Uint32 flags)
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207 {
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208 if (!flags) {
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209 flags = SDL_INIT_EVERYTHING;
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210 }
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211 return (SDL_initialized & flags);
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212 }
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213
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214 void
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215 SDL_Quit(void)
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216 {
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217 /* Quit all subsystems */
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218 #ifdef DEBUG_BUILD
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219 printf("[SDL_Quit] : Enter! Calling QuitSubSystem()\n");
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220 fflush(stdout);
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221 #endif
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222
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223 #if defined(__WIN32__)
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224 SDL_HelperWindowDestroy();
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225 #endif
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226 SDL_QuitSubSystem(SDL_INIT_EVERYTHING);
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227
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228 #ifdef CHECK_LEAKS
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229 #ifdef DEBUG_BUILD
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230 printf("[SDL_Quit] : CHECK_LEAKS\n");
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231 fflush(stdout);
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232 #endif
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233
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234 /* !!! FIXME: make this an assertion. */
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235 /* Print the number of surfaces not freed */
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236 if (surfaces_allocated != 0) {
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237 fprintf(stderr, "SDL Warning: %d SDL surfaces extant\n",
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238 surfaces_allocated);
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239 }
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240 #endif
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241 #ifdef DEBUG_BUILD
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242 printf("[SDL_Quit] : SDL_UninstallParachute()\n");
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243 fflush(stdout);
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244 #endif
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245
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246 /* Uninstall any parachute signal handlers */
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247 SDL_UninstallParachute();
397
283d348cb624 Pth threading bug fix
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248
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249 SDL_AssertionsQuit();
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250
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251 #ifdef DEBUG_BUILD
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252 printf("[SDL_Quit] : Returning!\n");
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253 fflush(stdout);
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254 #endif
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255
0
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256 }
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257
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258 /* Get the library version number */
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259 void
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260 SDL_GetVersion(SDL_version * ver)
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261 {
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262 SDL_VERSION(ver);
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263 }
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264
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265 /* Get the library source revision */
4419
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266 const char *
2996
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267 SDL_GetRevision(void)
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268 {
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269 return SDL_REVISION;
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270 }
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271
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272 /* Get the name of the platform */
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273 const char *
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274 SDL_GetPlatform()
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275 {
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276 #if __AIX__
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277 return "AIX";
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278 #elif __HAIKU__
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279 /* Haiku must appear here before BeOS, since it also defines __BEOS__ */
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280 return "Haiku";
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281 #elif __BEOS__
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282 return "BeOS";
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283 #elif __BSDI__
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284 return "BSDI";
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285 #elif __DREAMCAST__
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286 return "Dreamcast";
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287 #elif __FREEBSD__
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288 return "FreeBSD";
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289 #elif __HPUX__
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290 return "HP-UX";
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291 #elif __IRIX__
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292 return "Irix";
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293 #elif __LINUX__
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294 return "Linux";
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295 #elif __MINT__
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296 return "Atari MiNT";
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297 #elif __MACOS__
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298 return "MacOS Classic";
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299 #elif __MACOSX__
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300 return "Mac OS X";
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301 #elif __NETBSD__
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302 return "NetBSD";
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303 #elif __OPENBSD__
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304 return "OpenBSD";
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305 #elif __OS2__
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306 return "OS/2";
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307 #elif __OSF__
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308 return "OSF/1";
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309 #elif __QNXNTO__
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310 return "QNX Neutrino";
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311 #elif __RISCOS__
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312 return "RISC OS";
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313 #elif __SOLARIS__
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314 return "Solaris";
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315 #elif __WIN32__
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316 #ifdef _WIN32_WCE
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317 return "Windows CE";
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318 #else
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319 return "Windows";
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320 #endif
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321 #elif __IPHONEOS__
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322 return "iPhone OS";
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323 #else
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324 return "Unknown (see SDL_platform.h)";
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325 #endif
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326 }
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327
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328 #if defined(__WIN32__)
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329
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330 #if !defined(HAVE_LIBC) || (defined(__WATCOMC__) && defined(BUILD_DLL))
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331 /* Need to include DllMain() on Watcom C for some reason.. */
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332 #define WIN32_LEAN_AND_MEAN
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333 #include <windows.h>
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334
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335 BOOL APIENTRY
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336 _DllMainCRTStartup(HANDLE hModule,
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337 DWORD ul_reason_for_call, LPVOID lpReserved)
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338 {
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339 switch (ul_reason_for_call) {
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340 case DLL_PROCESS_ATTACH:
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341 case DLL_THREAD_ATTACH:
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342 case DLL_THREAD_DETACH:
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343 case DLL_PROCESS_DETACH:
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344 break;
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345 }
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346 return TRUE;
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347 }
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348 #endif /* building DLL with Watcom C */
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349
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350 #endif /* __WIN32__ */
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351
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352 /* vi: set ts=4 sw=4 expandtab: */