Mercurial > sdl-ios-xcode
view src/SDL.c @ 4211:3ce5bfddbaf6 SDL-1.2
Fixed bug #572
Please merge this patch for the PA driver in SDL.
http://0pointer.de/public/sdl-pulse-rework.patch
This patch:
- fixes buffering (i.e. reduces number of "fragments" to 2, doesn't defer
filling up of the buffer until the entire buffer ran completely empty.)
- drops $PASERVER and $PADEVICE env var support, since this is a duplication of
$PULSE_SERVER and $PULSE_SINK which the PA libs honor anyway.
This fixes the sound issues in all games I tested.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Mon, 21 Sep 2009 08:03:00 +0000 |
parents | a1b03ba2fcd0 |
children |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2009 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ #include "SDL_config.h" /* Initialization code for SDL */ #include "SDL.h" #include "SDL_fatal.h" #if !SDL_VIDEO_DISABLED #include "video/SDL_leaks.h" #endif #if SDL_THREAD_PTH #include <pth.h> #endif /* Initialization/Cleanup routines */ #if !SDL_JOYSTICK_DISABLED extern int SDL_JoystickInit(void); extern void SDL_JoystickQuit(void); #endif #if !SDL_CDROM_DISABLED extern int SDL_CDROMInit(void); extern void SDL_CDROMQuit(void); #endif #if !SDL_TIMERS_DISABLED extern void SDL_StartTicks(void); extern int SDL_TimerInit(void); extern void SDL_TimerQuit(void); #endif /* The current SDL version */ static SDL_version version = { SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_PATCHLEVEL }; /* The initialized subsystems */ static Uint32 SDL_initialized = 0; #if !SDL_TIMERS_DISABLED static Uint32 ticks_started = 0; #endif #ifdef CHECK_LEAKS int surfaces_allocated = 0; #endif int SDL_InitSubSystem(Uint32 flags) { #if !SDL_VIDEO_DISABLED /* Initialize the video/event subsystem */ if ( (flags & SDL_INIT_VIDEO) && !(SDL_initialized & SDL_INIT_VIDEO) ) { if ( SDL_VideoInit(SDL_getenv("SDL_VIDEODRIVER"), (flags&SDL_INIT_EVENTTHREAD)) < 0 ) { return(-1); } SDL_initialized |= SDL_INIT_VIDEO; } #else if ( flags & SDL_INIT_VIDEO ) { SDL_SetError("SDL not built with video support"); return(-1); } #endif #if !SDL_AUDIO_DISABLED /* Initialize the audio subsystem */ if ( (flags & SDL_INIT_AUDIO) && !(SDL_initialized & SDL_INIT_AUDIO) ) { if ( SDL_AudioInit(SDL_getenv("SDL_AUDIODRIVER")) < 0 ) { return(-1); } SDL_initialized |= SDL_INIT_AUDIO; } #else if ( flags & SDL_INIT_AUDIO ) { SDL_SetError("SDL not built with audio support"); return(-1); } #endif #if !SDL_TIMERS_DISABLED /* Initialize the timer subsystem */ if ( ! ticks_started ) { SDL_StartTicks(); ticks_started = 1; } if ( (flags & SDL_INIT_TIMER) && !(SDL_initialized & SDL_INIT_TIMER) ) { if ( SDL_TimerInit() < 0 ) { return(-1); } SDL_initialized |= SDL_INIT_TIMER; } #else if ( flags & SDL_INIT_TIMER ) { SDL_SetError("SDL not built with timer support"); return(-1); } #endif #if !SDL_JOYSTICK_DISABLED /* Initialize the joystick subsystem */ if ( (flags & SDL_INIT_JOYSTICK) && !(SDL_initialized & SDL_INIT_JOYSTICK) ) { if ( SDL_JoystickInit() < 0 ) { return(-1); } SDL_initialized |= SDL_INIT_JOYSTICK; } #else if ( flags & SDL_INIT_JOYSTICK ) { SDL_SetError("SDL not built with joystick support"); return(-1); } #endif #if !SDL_CDROM_DISABLED /* Initialize the CD-ROM subsystem */ if ( (flags & SDL_INIT_CDROM) && !(SDL_initialized & SDL_INIT_CDROM) ) { if ( SDL_CDROMInit() < 0 ) { return(-1); } SDL_initialized |= SDL_INIT_CDROM; } #else if ( flags & SDL_INIT_CDROM ) { SDL_SetError("SDL not built with cdrom support"); return(-1); } #endif return(0); } int SDL_Init(Uint32 flags) { #if !SDL_THREADS_DISABLED && SDL_THREAD_PTH if (!pth_init()) { return -1; } #endif /* Clear the error message */ SDL_ClearError(); /* Initialize the desired subsystems */ if ( SDL_InitSubSystem(flags) < 0 ) { return(-1); } /* Everything is initialized */ if ( !(flags & SDL_INIT_NOPARACHUTE) ) { SDL_InstallParachute(); } return(0); } void SDL_QuitSubSystem(Uint32 flags) { /* Shut down requested initialized subsystems */ #if !SDL_CDROM_DISABLED if ( (flags & SDL_initialized & SDL_INIT_CDROM) ) { SDL_CDROMQuit(); SDL_initialized &= ~SDL_INIT_CDROM; } #endif #if !SDL_JOYSTICK_DISABLED if ( (flags & SDL_initialized & SDL_INIT_JOYSTICK) ) { SDL_JoystickQuit(); SDL_initialized &= ~SDL_INIT_JOYSTICK; } #endif #if !SDL_TIMERS_DISABLED if ( (flags & SDL_initialized & SDL_INIT_TIMER) ) { SDL_TimerQuit(); SDL_initialized &= ~SDL_INIT_TIMER; } #endif #if !SDL_AUDIO_DISABLED if ( (flags & SDL_initialized & SDL_INIT_AUDIO) ) { SDL_AudioQuit(); SDL_initialized &= ~SDL_INIT_AUDIO; } #endif #if !SDL_VIDEO_DISABLED if ( (flags & SDL_initialized & SDL_INIT_VIDEO) ) { SDL_VideoQuit(); SDL_initialized &= ~SDL_INIT_VIDEO; } #endif } Uint32 SDL_WasInit(Uint32 flags) { if ( ! flags ) { flags = SDL_INIT_EVERYTHING; } return (SDL_initialized&flags); } void SDL_Quit(void) { /* Quit all subsystems */ #ifdef DEBUG_BUILD printf("[SDL_Quit] : Enter! Calling QuitSubSystem()\n"); fflush(stdout); #endif SDL_QuitSubSystem(SDL_INIT_EVERYTHING); #ifdef CHECK_LEAKS #ifdef DEBUG_BUILD printf("[SDL_Quit] : CHECK_LEAKS\n"); fflush(stdout); #endif /* Print the number of surfaces not freed */ if ( surfaces_allocated != 0 ) { fprintf(stderr, "SDL Warning: %d SDL surfaces extant\n", surfaces_allocated); } #endif #ifdef DEBUG_BUILD printf("[SDL_Quit] : SDL_UninstallParachute()\n"); fflush(stdout); #endif /* Uninstall any parachute signal handlers */ SDL_UninstallParachute(); #if !SDL_THREADS_DISABLED && SDL_THREAD_PTH pth_kill(); #endif #ifdef DEBUG_BUILD printf("[SDL_Quit] : Returning!\n"); fflush(stdout); #endif } /* Return the library version number */ const SDL_version * SDL_Linked_Version(void) { return(&version); } #if defined(__OS2__) /* Building for OS/2 */ #ifdef __WATCOMC__ #define INCL_DOSERRORS #define INCL_DOSEXCEPTIONS #include <os2.h> /* Exception handler to prevent the Audio thread hanging, making a zombie process! */ ULONG _System SDL_Main_ExceptionHandler(PEXCEPTIONREPORTRECORD pERepRec, PEXCEPTIONREGISTRATIONRECORD pERegRec, PCONTEXTRECORD pCtxRec, PVOID p) { if (pERepRec->fHandlerFlags & EH_EXIT_UNWIND) return XCPT_CONTINUE_SEARCH; if (pERepRec->fHandlerFlags & EH_UNWINDING) return XCPT_CONTINUE_SEARCH; if (pERepRec->fHandlerFlags & EH_NESTED_CALL) return XCPT_CONTINUE_SEARCH; /* Do cleanup at every fatal exception! */ if (((pERepRec->ExceptionNum & XCPT_SEVERITY_CODE) == XCPT_FATAL_EXCEPTION) && (pERepRec->ExceptionNum != XCPT_BREAKPOINT) && (pERepRec->ExceptionNum != XCPT_SINGLE_STEP) ) { if (SDL_initialized & SDL_INIT_AUDIO) { /* This removes the zombie audio thread in case of emergency. */ #ifdef DEBUG_BUILD printf("[SDL_Main_ExceptionHandler] : Calling SDL_CloseAudio()!\n"); #endif SDL_CloseAudio(); } } return (XCPT_CONTINUE_SEARCH); } EXCEPTIONREGISTRATIONRECORD SDL_Main_xcpthand = {0, SDL_Main_ExceptionHandler}; /* The main DLL entry for DLL Initialization and Uninitialization: */ unsigned _System LibMain(unsigned hmod, unsigned termination) { if (termination) { #ifdef DEBUG_BUILD /* printf("[SDL DLL Unintialization] : Removing exception handler\n"); */ #endif DosUnsetExceptionHandler(&SDL_Main_xcpthand); return 1; } else { #ifdef DEBUG_BUILD /* Make stdout and stderr unbuffered! */ setbuf(stdout, NULL); setbuf(stderr, NULL); #endif /* Fire up exception handler */ #ifdef DEBUG_BUILD /* printf("[SDL DLL Initialization] : Setting exception handler\n"); */ #endif /* Set exception handler */ DosSetExceptionHandler(&SDL_Main_xcpthand); return 1; } } #endif /* __WATCOMC__ */ #elif defined(__WIN32__) && !defined(__SYMBIAN32__) #if !defined(HAVE_LIBC) || (defined(__WATCOMC__) && defined(BUILD_DLL)) /* Need to include DllMain() on Watcom C for some reason.. */ #define WIN32_LEAN_AND_MEAN #include <windows.h> BOOL APIENTRY _DllMainCRTStartup( HANDLE hModule, DWORD ul_reason_for_call, LPVOID lpReserved ) { switch (ul_reason_for_call) { case DLL_PROCESS_ATTACH: case DLL_THREAD_ATTACH: case DLL_THREAD_DETACH: case DLL_PROCESS_DETACH: break; } return TRUE; } #endif /* building DLL with Watcom C */ #endif /* OS/2 elif __WIN32__ */