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/*
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SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2009 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Sam Lantinga
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slouken@libsdl.org
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*/
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#include "SDL_config.h"
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/* Initialization code for SDL */
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#include "SDL.h"
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#include "SDL_fatal.h"
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#if !SDL_VIDEO_DISABLED
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#include "video/SDL_leaks.h"
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#endif
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#if SDL_THREAD_PTH
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#include <pth.h>
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#endif
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/* Initialization/Cleanup routines */
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#if !SDL_JOYSTICK_DISABLED
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extern int SDL_JoystickInit(void);
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extern void SDL_JoystickQuit(void);
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#endif
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#if !SDL_HAPTIC_DISABLED
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extern int SDL_HapticInit(void);
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extern int SDL_HapticQuit(void);
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#endif
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#if !SDL_TIMERS_DISABLED
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extern void SDL_StartTicks(void);
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extern int SDL_TimerInit(void);
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extern void SDL_TimerQuit(void);
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#endif
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#if defined(__WIN32__)
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extern int SDL_HelperWindowCreate(void);
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extern int SDL_HelperWindowDestroy(void);
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#endif
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/* The initialized subsystems */
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static Uint32 SDL_initialized = 0;
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static Uint32 ticks_started = 0;
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#ifdef CHECK_LEAKS
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int surfaces_allocated = 0;
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#endif
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int
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SDL_InitSubSystem(Uint32 flags)
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{
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#if !SDL_VIDEO_DISABLED
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/* Initialize the video/event subsystem */
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if ((flags & SDL_INIT_VIDEO) && !(SDL_initialized & SDL_INIT_VIDEO)) {
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if (SDL_VideoInit(NULL, (flags & SDL_INIT_EVENTTHREAD)) < 0) {
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return (-1);
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}
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SDL_initialized |= SDL_INIT_VIDEO;
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}
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#else
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if (flags & SDL_INIT_VIDEO) {
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SDL_SetError("SDL not built with video support");
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return (-1);
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}
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#endif
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#if !SDL_AUDIO_DISABLED
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/* Initialize the audio subsystem */
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if ((flags & SDL_INIT_AUDIO) && !(SDL_initialized & SDL_INIT_AUDIO)) {
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if (SDL_AudioInit(NULL) < 0) {
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return (-1);
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}
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SDL_initialized |= SDL_INIT_AUDIO;
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}
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#else
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if (flags & SDL_INIT_AUDIO) {
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SDL_SetError("SDL not built with audio support");
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return (-1);
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}
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#endif
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#if !SDL_TIMERS_DISABLED
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/* Initialize the timer subsystem */
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if (!ticks_started) {
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SDL_StartTicks();
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ticks_started = 1;
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}
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if ((flags & SDL_INIT_TIMER) && !(SDL_initialized & SDL_INIT_TIMER)) {
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if (SDL_TimerInit() < 0) {
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return (-1);
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}
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SDL_initialized |= SDL_INIT_TIMER;
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}
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#else
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if (flags & SDL_INIT_TIMER) {
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SDL_SetError("SDL not built with timer support");
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return (-1);
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}
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#endif
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#if !SDL_JOYSTICK_DISABLED
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/* Initialize the joystick subsystem */
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if ((flags & SDL_INIT_JOYSTICK) && !(SDL_initialized & SDL_INIT_JOYSTICK)) {
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if (SDL_JoystickInit() < 0) {
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return (-1);
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}
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SDL_initialized |= SDL_INIT_JOYSTICK;
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}
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#else
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if (flags & SDL_INIT_JOYSTICK) {
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SDL_SetError("SDL not built with joystick support");
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return (-1);
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}
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#endif
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#if !SDL_HAPTIC_DISABLED
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/* Initialize the haptic subsystem */
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if ((flags & SDL_INIT_HAPTIC) && !(SDL_initialized & SDL_INIT_HAPTIC)) {
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if (SDL_HapticInit() < 0) {
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return (-1);
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}
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SDL_initialized |= SDL_INIT_HAPTIC;
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}
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#else
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if (flags & SDL_INIT_HAPTIC) {
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SDL_SetError("SDL not built with haptic (force feedback) support");
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return (-1);
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}
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#endif
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return (0);
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}
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int
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SDL_Init(Uint32 flags)
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{
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#if !SDL_THREADS_DISABLED && SDL_THREAD_PTH
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if (!pth_init()) {
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return -1;
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}
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#endif
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/* Clear the error message */
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SDL_ClearError();
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#if defined(__WIN32__)
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if (SDL_HelperWindowCreate() < 0) {
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return -1;
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}
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#endif
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/* Initialize the desired subsystems */
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if (SDL_InitSubSystem(flags) < 0) {
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return (-1);
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}
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/* Everything is initialized */
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if (!(flags & SDL_INIT_NOPARACHUTE)) {
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SDL_InstallParachute();
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}
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return (0);
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}
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void
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SDL_QuitSubSystem(Uint32 flags)
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{
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/* Shut down requested initialized subsystems */
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#if !SDL_JOYSTICK_DISABLED
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if ((flags & SDL_initialized & SDL_INIT_JOYSTICK)) {
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SDL_JoystickQuit();
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SDL_initialized &= ~SDL_INIT_JOYSTICK;
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}
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#endif
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slouken@2713
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#if !SDL_HAPTIC_DISABLED
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slouken@2713
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if ((flags & SDL_initialized & SDL_INIT_HAPTIC)) {
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SDL_HapticQuit();
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SDL_initialized &= ~SDL_INIT_HAPTIC;
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}
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192 |
#endif
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#if !SDL_TIMERS_DISABLED
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slouken@1895
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194 |
if ((flags & SDL_initialized & SDL_INIT_TIMER)) {
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SDL_TimerQuit();
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SDL_initialized &= ~SDL_INIT_TIMER;
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}
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#endif
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slouken@1361
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#if !SDL_AUDIO_DISABLED
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if ((flags & SDL_initialized & SDL_INIT_AUDIO)) {
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SDL_AudioQuit();
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SDL_initialized &= ~SDL_INIT_AUDIO;
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}
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#endif
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slouken@1361
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#if !SDL_VIDEO_DISABLED
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slouken@1895
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206 |
if ((flags & SDL_initialized & SDL_INIT_VIDEO)) {
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207 |
SDL_VideoQuit();
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SDL_initialized &= ~SDL_INIT_VIDEO;
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209 |
}
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slouken@0
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210 |
#endif
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slouken@0
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211 |
}
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slouken@0
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212 |
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slouken@1895
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213 |
Uint32
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214 |
SDL_WasInit(Uint32 flags)
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215 |
{
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slouken@1895
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216 |
if (!flags) {
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217 |
flags = SDL_INIT_EVERYTHING;
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slouken@1895
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218 |
}
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219 |
return (SDL_initialized & flags);
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}
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slouken@0
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221 |
|
slouken@1895
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222 |
void
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slouken@1895
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223 |
SDL_Quit(void)
|
slouken@0
|
224 |
{
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slouken@1895
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225 |
/* Quit all subsystems */
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icculus@1190
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226 |
#ifdef DEBUG_BUILD
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slouken@1895
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227 |
printf("[SDL_Quit] : Enter! Calling QuitSubSystem()\n");
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slouken@1895
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228 |
fflush(stdout);
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icculus@1190
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229 |
#endif
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slouken@2713
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230 |
|
slouken@2713
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231 |
#if defined(__WIN32__)
|
slouken@2713
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232 |
SDL_HelperWindowDestroy();
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slouken@2713
|
233 |
#endif
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slouken@1895
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234 |
SDL_QuitSubSystem(SDL_INIT_EVERYTHING);
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slouken@0
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235 |
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slouken@0
|
236 |
#ifdef CHECK_LEAKS
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icculus@1190
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237 |
#ifdef DEBUG_BUILD
|
slouken@1895
|
238 |
printf("[SDL_Quit] : CHECK_LEAKS\n");
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slouken@1895
|
239 |
fflush(stdout);
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icculus@1190
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240 |
#endif
|
icculus@1190
|
241 |
|
slouken@1895
|
242 |
/* Print the number of surfaces not freed */
|
slouken@1895
|
243 |
if (surfaces_allocated != 0) {
|
slouken@1895
|
244 |
fprintf(stderr, "SDL Warning: %d SDL surfaces extant\n",
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slouken@1895
|
245 |
surfaces_allocated);
|
slouken@1895
|
246 |
}
|
slouken@0
|
247 |
#endif
|
icculus@1190
|
248 |
#ifdef DEBUG_BUILD
|
slouken@1895
|
249 |
printf("[SDL_Quit] : SDL_UninstallParachute()\n");
|
slouken@1895
|
250 |
fflush(stdout);
|
icculus@1190
|
251 |
#endif
|
slouken@0
|
252 |
|
slouken@1895
|
253 |
/* Uninstall any parachute signal handlers */
|
slouken@1895
|
254 |
SDL_UninstallParachute();
|
slouken@397
|
255 |
|
slouken@1361
|
256 |
#if !SDL_THREADS_DISABLED && SDL_THREAD_PTH
|
slouken@1895
|
257 |
pth_kill();
|
slouken@397
|
258 |
#endif
|
icculus@1190
|
259 |
#ifdef DEBUG_BUILD
|
slouken@1895
|
260 |
printf("[SDL_Quit] : Returning!\n");
|
slouken@1895
|
261 |
fflush(stdout);
|
icculus@1190
|
262 |
#endif
|
icculus@1190
|
263 |
|
slouken@0
|
264 |
}
|
slouken@0
|
265 |
|
slouken@1895
|
266 |
/* Get the library version number */
|
slouken@1895
|
267 |
void
|
slouken@1895
|
268 |
SDL_GetVersion(SDL_version * ver)
|
slouken@0
|
269 |
{
|
slouken@1895
|
270 |
SDL_VERSION(ver);
|
slouken@0
|
271 |
}
|
slouken@0
|
272 |
|
slouken@2982
|
273 |
/* Get the library source revision */
|
slouken@2982
|
274 |
int
|
slouken@2996
|
275 |
SDL_GetRevision(void)
|
slouken@2982
|
276 |
{
|
slouken@2983
|
277 |
return SDL_REVISION;
|
slouken@2982
|
278 |
}
|
slouken@2982
|
279 |
|
slouken@1330
|
280 |
#if defined(__OS2__)
|
slouken@1487
|
281 |
/* Building for OS/2 */
|
icculus@1190
|
282 |
#ifdef __WATCOMC__
|
icculus@1190
|
283 |
|
icculus@1190
|
284 |
#define INCL_DOSERRORS
|
icculus@1190
|
285 |
#define INCL_DOSEXCEPTIONS
|
icculus@1190
|
286 |
#include <os2.h>
|
icculus@1190
|
287 |
|
slouken@1487
|
288 |
/* Exception handler to prevent the Audio thread hanging, making a zombie process! */
|
slouken@1895
|
289 |
ULONG _System
|
slouken@1895
|
290 |
SDL_Main_ExceptionHandler(PEXCEPTIONREPORTRECORD pERepRec,
|
slouken@1895
|
291 |
PEXCEPTIONREGISTRATIONRECORD pERegRec,
|
slouken@1895
|
292 |
PCONTEXTRECORD pCtxRec, PVOID p)
|
icculus@1190
|
293 |
{
|
slouken@1895
|
294 |
if (pERepRec->fHandlerFlags & EH_EXIT_UNWIND)
|
slouken@1895
|
295 |
return XCPT_CONTINUE_SEARCH;
|
slouken@1895
|
296 |
if (pERepRec->fHandlerFlags & EH_UNWINDING)
|
slouken@1895
|
297 |
return XCPT_CONTINUE_SEARCH;
|
slouken@1895
|
298 |
if (pERepRec->fHandlerFlags & EH_NESTED_CALL)
|
slouken@1895
|
299 |
return XCPT_CONTINUE_SEARCH;
|
icculus@1190
|
300 |
|
slouken@1895
|
301 |
/* Do cleanup at every fatal exception! */
|
slouken@1895
|
302 |
if (((pERepRec->ExceptionNum & XCPT_SEVERITY_CODE) ==
|
slouken@1895
|
303 |
XCPT_FATAL_EXCEPTION) && (pERepRec->ExceptionNum != XCPT_BREAKPOINT)
|
slouken@1895
|
304 |
&& (pERepRec->ExceptionNum != XCPT_SINGLE_STEP)) {
|
slouken@1895
|
305 |
if (SDL_initialized & SDL_INIT_AUDIO) {
|
slouken@1895
|
306 |
/* This removes the zombie audio thread in case of emergency. */
|
icculus@1190
|
307 |
#ifdef DEBUG_BUILD
|
slouken@1895
|
308 |
printf
|
slouken@1895
|
309 |
("[SDL_Main_ExceptionHandler] : Calling SDL_CloseAudio()!\n");
|
icculus@1190
|
310 |
#endif
|
slouken@1895
|
311 |
SDL_CloseAudio();
|
slouken@1895
|
312 |
}
|
icculus@1190
|
313 |
}
|
slouken@1895
|
314 |
return (XCPT_CONTINUE_SEARCH);
|
icculus@1190
|
315 |
}
|
icculus@1190
|
316 |
|
icculus@1190
|
317 |
|
slouken@1895
|
318 |
EXCEPTIONREGISTRATIONRECORD SDL_Main_xcpthand =
|
slouken@1895
|
319 |
{ 0, SDL_Main_ExceptionHandler };
|
icculus@1190
|
320 |
|
slouken@1487
|
321 |
/* The main DLL entry for DLL Initialization and Uninitialization: */
|
slouken@1895
|
322 |
unsigned _System
|
slouken@1895
|
323 |
LibMain(unsigned hmod, unsigned termination)
|
icculus@1190
|
324 |
{
|
slouken@1895
|
325 |
if (termination) {
|
icculus@1190
|
326 |
#ifdef DEBUG_BUILD
|
slouken@1487
|
327 |
/* printf("[SDL DLL Unintialization] : Removing exception handler\n"); */
|
icculus@1190
|
328 |
#endif
|
slouken@1895
|
329 |
DosUnsetExceptionHandler(&SDL_Main_xcpthand);
|
slouken@1895
|
330 |
return 1;
|
slouken@1895
|
331 |
} else {
|
icculus@1190
|
332 |
#ifdef DEBUG_BUILD
|
slouken@1895
|
333 |
/* Make stdout and stderr unbuffered! */
|
slouken@1895
|
334 |
setbuf(stdout, NULL);
|
slouken@1895
|
335 |
setbuf(stderr, NULL);
|
icculus@1190
|
336 |
#endif
|
slouken@1895
|
337 |
/* Fire up exception handler */
|
icculus@1190
|
338 |
#ifdef DEBUG_BUILD
|
slouken@1487
|
339 |
/* printf("[SDL DLL Initialization] : Setting exception handler\n"); */
|
icculus@1190
|
340 |
#endif
|
slouken@1895
|
341 |
/* Set exception handler */
|
slouken@1895
|
342 |
DosSetExceptionHandler(&SDL_Main_xcpthand);
|
icculus@1190
|
343 |
|
slouken@1895
|
344 |
return 1;
|
slouken@1895
|
345 |
}
|
icculus@1190
|
346 |
}
|
slouken@1330
|
347 |
#endif /* __WATCOMC__ */
|
icculus@1190
|
348 |
|
slouken@1402
|
349 |
#elif defined(__WIN32__)
|
slouken@1330
|
350 |
|
slouken@1465
|
351 |
#if !defined(HAVE_LIBC) || (defined(__WATCOMC__) && defined(BUILD_DLL))
|
slouken@1465
|
352 |
/* Need to include DllMain() on Watcom C for some reason.. */
|
slouken@1433
|
353 |
#define WIN32_LEAN_AND_MEAN
|
slouken@1433
|
354 |
#include <windows.h>
|
slouken@1330
|
355 |
|
slouken@1895
|
356 |
BOOL APIENTRY
|
slouken@1895
|
357 |
_DllMainCRTStartup(HANDLE hModule,
|
slouken@1895
|
358 |
DWORD ul_reason_for_call, LPVOID lpReserved)
|
slouken@1330
|
359 |
{
|
slouken@1895
|
360 |
switch (ul_reason_for_call) {
|
slouken@1895
|
361 |
case DLL_PROCESS_ATTACH:
|
slouken@1895
|
362 |
case DLL_THREAD_ATTACH:
|
slouken@1895
|
363 |
case DLL_THREAD_DETACH:
|
slouken@1895
|
364 |
case DLL_PROCESS_DETACH:
|
slouken@1895
|
365 |
break;
|
slouken@1895
|
366 |
}
|
slouken@1895
|
367 |
return TRUE;
|
slouken@1330
|
368 |
}
|
slouken@1465
|
369 |
#endif /* building DLL with Watcom C */
|
slouken@1330
|
370 |
|
slouken@1402
|
371 |
#endif /* OS/2 elif __WIN32__ */
|
slouken@1895
|
372 |
|
slouken@1895
|
373 |
/* vi: set ts=4 sw=4 expandtab: */
|