From d8239786b306ffda6d5d73753d01f0ad3358e1a0 Mon Sep 17 00:00:00 2001 From: Jesse Hall Date: Tue, 17 Jul 2012 16:58:55 -0700 Subject: Delete sdl-1.2.12 Change-Id: Ia96f80df04035ae84be3af468c945f2cec14f99c --- distrib/sdl-1.2.12/src/audio/bsd/SDL_bsdaudio.c | 404 ------------------------ 1 file changed, 404 deletions(-) delete mode 100644 distrib/sdl-1.2.12/src/audio/bsd/SDL_bsdaudio.c (limited to 'distrib/sdl-1.2.12/src/audio/bsd/SDL_bsdaudio.c') diff --git a/distrib/sdl-1.2.12/src/audio/bsd/SDL_bsdaudio.c b/distrib/sdl-1.2.12/src/audio/bsd/SDL_bsdaudio.c deleted file mode 100644 index f1946c0..0000000 --- a/distrib/sdl-1.2.12/src/audio/bsd/SDL_bsdaudio.c +++ /dev/null @@ -1,404 +0,0 @@ -/* - SDL - Simple DirectMedia Layer - Copyright (C) 1997-2004 Sam Lantinga - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public - License as published by the Free Software Foundation; either - version 2 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 - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with this library; if not, write to the Free - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - - Sam Lantinga - slouken@libsdl.org -*/ -#include "SDL_config.h" - -/* - * Driver for native OpenBSD/NetBSD audio(4). - * vedge@vedge.com.ar. - */ - -#include -#include -#include -#include -#include -#include -#include -#include - -#include "SDL_timer.h" -#include "SDL_audio.h" -#include "../SDL_audiomem.h" -#include "../SDL_audio_c.h" -#include "../SDL_audiodev_c.h" -#include "SDL_bsdaudio.h" - -/* The tag name used by NetBSD/OpenBSD audio */ -#ifdef __NetBSD__ -#define BSD_AUDIO_DRIVER_NAME "netbsd" -#define BSD_AUDIO_DRIVER_DESC "Native NetBSD audio" -#else -#define BSD_AUDIO_DRIVER_NAME "openbsd" -#define BSD_AUDIO_DRIVER_DESC "Native OpenBSD audio" -#endif - -/* Open the audio device for playback, and don't block if busy */ -/* #define USE_BLOCKING_WRITES */ - -/* Use timer for synchronization */ -/* #define USE_TIMER_SYNC */ - -/* #define DEBUG_AUDIO */ -/* #define DEBUG_AUDIO_STREAM */ - -#ifdef USE_BLOCKING_WRITES -#define OPEN_FLAGS O_WRONLY -#else -#define OPEN_FLAGS (O_WRONLY|O_NONBLOCK) -#endif - -/* Audio driver functions */ -static void OBSD_WaitAudio(_THIS); -static int OBSD_OpenAudio(_THIS, SDL_AudioSpec *spec); -static void OBSD_PlayAudio(_THIS); -static Uint8 *OBSD_GetAudioBuf(_THIS); -static void OBSD_CloseAudio(_THIS); - -#ifdef DEBUG_AUDIO -static void OBSD_Status(_THIS); -#endif - -/* Audio driver bootstrap functions */ - -static int -Audio_Available(void) -{ - int fd; - int available; - - available = 0; - fd = SDL_OpenAudioPath(NULL, 0, OPEN_FLAGS, 0); - if(fd >= 0) { - available = 1; - close(fd); - } - return(available); -} - -static void -Audio_DeleteDevice(SDL_AudioDevice *device) -{ - SDL_free(device->hidden); - SDL_free(device); -} - -static SDL_AudioDevice -*Audio_CreateDevice(int devindex) -{ - SDL_AudioDevice *this; - - /* Initialize all variables that we clean on shutdown */ - this = (SDL_AudioDevice*)SDL_malloc(sizeof(SDL_AudioDevice)); - if(this) { - SDL_memset(this, 0, (sizeof *this)); - this->hidden = - (struct SDL_PrivateAudioData*)SDL_malloc((sizeof *this->hidden)); - } - if((this == NULL) || (this->hidden == NULL)) { - SDL_OutOfMemory(); - if(this) SDL_free(this); - return(0); - } - SDL_memset(this->hidden, 0, (sizeof *this->hidden)); - audio_fd = -1; - - /* Set the function pointers */ - this->OpenAudio = OBSD_OpenAudio; - this->WaitAudio = OBSD_WaitAudio; - this->PlayAudio = OBSD_PlayAudio; - this->GetAudioBuf = OBSD_GetAudioBuf; - this->CloseAudio = OBSD_CloseAudio; - - this->free = Audio_DeleteDevice; - - return this; -} - -AudioBootStrap BSD_AUDIO_bootstrap = { - BSD_AUDIO_DRIVER_NAME, BSD_AUDIO_DRIVER_DESC, - Audio_Available, Audio_CreateDevice -}; - -/* This function waits until it is possible to write a full sound buffer */ -static void -OBSD_WaitAudio(_THIS) -{ -#ifndef USE_BLOCKING_WRITES /* Not necessary when using blocking writes */ - /* See if we need to use timed audio synchronization */ - if ( frame_ticks ) { - /* Use timer for general audio synchronization */ - Sint32 ticks; - - ticks = ((Sint32)(next_frame - SDL_GetTicks()))-FUDGE_TICKS; - if ( ticks > 0 ) { - SDL_Delay(ticks); - } - } else { - /* Use select() for audio synchronization */ - fd_set fdset; - struct timeval timeout; - - FD_ZERO(&fdset); - FD_SET(audio_fd, &fdset); - timeout.tv_sec = 10; - timeout.tv_usec = 0; -#ifdef DEBUG_AUDIO - fprintf(stderr, "Waiting for audio to get ready\n"); -#endif - if ( select(audio_fd+1, NULL, &fdset, NULL, &timeout) <= 0 ) { - const char *message = - "Audio timeout - buggy audio driver? (disabled)"; - /* In general we should never print to the screen, - but in this case we have no other way of letting - the user know what happened. - */ - fprintf(stderr, "SDL: %s\n", message); - this->enabled = 0; - /* Don't try to close - may hang */ - audio_fd = -1; -#ifdef DEBUG_AUDIO - fprintf(stderr, "Done disabling audio\n"); -#endif - } -#ifdef DEBUG_AUDIO - fprintf(stderr, "Ready!\n"); -#endif - } -#endif /* !USE_BLOCKING_WRITES */ -} - -static void -OBSD_PlayAudio(_THIS) -{ - int written, p=0; - - /* Write the audio data, checking for EAGAIN on broken audio drivers */ - do { - written = write(audio_fd, &mixbuf[p], mixlen-p); - if (written>0) - p += written; - if (written == -1 && errno != 0 && errno != EAGAIN && errno != EINTR) - { - /* Non recoverable error has occurred. It should be reported!!! */ - perror("audio"); - break; - } - - if ( p < written || ((written < 0) && ((errno == 0) || (errno == EAGAIN))) ) { - SDL_Delay(1); /* Let a little CPU time go by */ - } - } while ( p < written ); - - /* If timer synchronization is enabled, set the next write frame */ - if ( frame_ticks ) { - next_frame += frame_ticks; - } - - /* If we couldn't write, assume fatal error for now */ - if ( written < 0 ) { - this->enabled = 0; - } -#ifdef DEBUG_AUDIO - fprintf(stderr, "Wrote %d bytes of audio data\n", written); -#endif -} - -static Uint8 -*OBSD_GetAudioBuf(_THIS) -{ - return(mixbuf); -} - -static void -OBSD_CloseAudio(_THIS) -{ - if(mixbuf != NULL) { - SDL_FreeAudioMem(mixbuf); - mixbuf = NULL; - } - if(audio_fd >= 0) { - close(audio_fd); - audio_fd = -1; - } -} - -#ifdef DEBUG_AUDIO -void -OBSD_Status(_THIS) -{ - audio_info_t info; - - if(ioctl(audio_fd, AUDIO_GETINFO, &info) < 0) { - fprintf(stderr,"AUDIO_GETINFO failed.\n"); - return; - } - - fprintf(stderr,"\n" -"[play/record info]\n" -"buffer size : %d bytes\n" -"sample rate : %i Hz\n" -"channels : %i\n" -"precision : %i-bit\n" -"encoding : 0x%x\n" -"seek : %i\n" -"sample count : %i\n" -"EOF count : %i\n" -"paused : %s\n" -"error occured : %s\n" -"waiting : %s\n" -"active : %s\n" -"", - info.play.buffer_size, - info.play.sample_rate, - info.play.channels, - info.play.precision, - info.play.encoding, - info.play.seek, - info.play.samples, - info.play.eof, - info.play.pause ? "yes" : "no", - info.play.error ? "yes" : "no", - info.play.waiting ? "yes" : "no", - info.play.active ? "yes": "no"); - - fprintf(stderr,"\n" -"[audio info]\n" -"monitor_gain : %i\n" -"hw block size : %d bytes\n" -"hi watermark : %i\n" -"lo watermark : %i\n" -"audio mode : %s\n" -"", - info.monitor_gain, - info.blocksize, - info.hiwat, info.lowat, - (info.mode == AUMODE_PLAY) ? "PLAY" - : (info.mode = AUMODE_RECORD) ? "RECORD" - : (info.mode == AUMODE_PLAY_ALL ? "PLAY_ALL" - : "?")); -} -#endif /* DEBUG_AUDIO */ - -static int -OBSD_OpenAudio(_THIS, SDL_AudioSpec *spec) -{ - char audiodev[64]; - Uint16 format; - audio_info_t info; - - AUDIO_INITINFO(&info); - - /* Calculate the final parameters for this audio specification */ - SDL_CalculateAudioSpec(spec); - -#ifdef USE_TIMER_SYNC - frame_ticks = 0.0; -#endif - - /* Open the audio device */ - audio_fd = SDL_OpenAudioPath(audiodev, sizeof(audiodev), OPEN_FLAGS, 0); - if(audio_fd < 0) { - SDL_SetError("Couldn't open %s: %s", audiodev, strerror(errno)); - return(-1); - } - - /* Set to play mode */ - info.mode = AUMODE_PLAY; - if(ioctl(audio_fd, AUDIO_SETINFO, &info) < 0) { - SDL_SetError("Couldn't put device into play mode"); - return(-1); - } - - mixbuf = NULL; - AUDIO_INITINFO(&info); - for (format = SDL_FirstAudioFormat(spec->format); - format; format = SDL_NextAudioFormat()) - { - switch(format) { - case AUDIO_U8: - info.play.encoding = AUDIO_ENCODING_ULINEAR; - info.play.precision = 8; - break; - case AUDIO_S8: - info.play.encoding = AUDIO_ENCODING_SLINEAR; - info.play.precision = 8; - break; - case AUDIO_S16LSB: - info.play.encoding = AUDIO_ENCODING_SLINEAR_LE; - info.play.precision = 16; - break; - case AUDIO_S16MSB: - info.play.encoding = AUDIO_ENCODING_SLINEAR_BE; - info.play.precision = 16; - break; - case AUDIO_U16LSB: - info.play.encoding = AUDIO_ENCODING_ULINEAR_LE; - info.play.precision = 16; - break; - case AUDIO_U16MSB: - info.play.encoding = AUDIO_ENCODING_ULINEAR_BE; - info.play.precision = 16; - break; - default: - continue; - } - if (ioctl(audio_fd, AUDIO_SETINFO, &info) == 0) - break; - } - - if(!format) { - SDL_SetError("No supported encoding for 0x%x", spec->format); - return(-1); - } - - spec->format = format; - - AUDIO_INITINFO(&info); - info.play.channels = spec->channels; - if (ioctl(audio_fd, AUDIO_SETINFO, &info) == -1) - spec->channels = 1; - AUDIO_INITINFO(&info); - info.play.sample_rate = spec->freq; - info.blocksize = spec->size; - info.hiwat = 5; - info.lowat = 3; - (void)ioctl(audio_fd, AUDIO_SETINFO, &info); - (void)ioctl(audio_fd, AUDIO_GETINFO, &info); - spec->freq = info.play.sample_rate; - /* Allocate mixing buffer */ - mixlen = spec->size; - mixbuf = (Uint8*)SDL_AllocAudioMem(mixlen); - if(mixbuf == NULL) { - return(-1); - } - SDL_memset(mixbuf, spec->silence, spec->size); - - /* Get the parent process id (we're the parent of the audio thread) */ - parent = getpid(); - -#ifdef DEBUG_AUDIO - OBSD_Status(this); -#endif - - /* We're ready to rock and roll. :-) */ - return(0); -} -- cgit v1.1