Updated the QNX audio code for QNX 6.2 (thanks Travis!)
--HG-- extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%40419
This commit is contained in:
Sam Lantinga
parent
2da1f62f1d
commit
e146cd9a8f
1 changed files with 188 additions and 245 deletions
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@ -1,3 +1,8 @@
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Date: Sun, 16 Jun 2002 00:59:13 -0300
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From: Travis <smallfri@bigfoot.com>
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To: slouken@libsdl.org
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Subject: NTO Audio Fixes
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/*
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SDL - Simple DirectMedia Layer
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Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga
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@ -20,10 +25,6 @@
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slouken@libsdl.org
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*/
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/* Allow access to a raw mixing buffer */
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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@ -35,6 +36,7 @@
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#include <sys/time.h>
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#include <sched.h>
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#include <sys/asoundlib.h>
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#include <sys/select.h>
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#include "SDL_audio.h"
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#include "SDL_error.h"
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@ -46,19 +48,15 @@
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/* The tag name used by NTO audio */
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#define DRIVER_NAME "nto"
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/* default card and device numbers as listed in dev/snd */
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static int card_no = 0;
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static int device_no = 0;
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/* default channel communication parameters */
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#define DEFAULT_CPARAMS_RATE 22050
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#define DEFAULT_CPARAMS_VOICES 1
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#define DEFAULT_CPARAMS_FRAG_SIZE 4096 //was 512
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#define DEFAULT_CPARAMS_FRAG_SIZE 4096
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#define DEFAULT_CPARAMS_FRAGS_MIN 1
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#define DEFAULT_CPARAMS_FRAGS_MAX 1
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/* Open the audio device for playback, and don't block if busy */
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#define OPEN_FLAGS SND_PCM_OPEN_PLAYBACK
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#define OPEN_FLAGS SND_PCM_OPEN_PLAYBACK
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/* Audio driver functions */
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static int NTO_OpenAudio(_THIS, SDL_AudioSpec *spec);
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@ -68,8 +66,8 @@ static Uint8 *NTO_GetAudioBuf(_THIS);
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static void NTO_CloseAudio(_THIS);
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static snd_pcm_channel_status_t cstatus;
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static snd_pcm_channel_params_t cparams;
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static snd_pcm_channel_setup_t csetup;
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static snd_pcm_channel_params_t cparams;
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static snd_pcm_channel_setup_t csetup;
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/* PCM transfer channel parameters initialize function */
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static void init_pcm_cparams(snd_pcm_channel_params_t* cparams)
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@ -78,7 +76,7 @@ static void init_pcm_cparams(snd_pcm_channel_params_t* cparams)
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cparams->channel = SND_PCM_CHANNEL_PLAYBACK;
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cparams->mode = SND_PCM_MODE_BLOCK;
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cparams->start_mode = SND_PCM_START_DATA; //_FULL
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cparams->start_mode = SND_PCM_START_DATA;
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cparams->stop_mode = SND_PCM_STOP_STOP;
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cparams->format.format = SND_PCM_SFMT_S16_LE;
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cparams->format.interleave = 1;
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@ -89,54 +87,48 @@ static void init_pcm_cparams(snd_pcm_channel_params_t* cparams)
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cparams->buf.block.frags_max = DEFAULT_CPARAMS_FRAGS_MAX;
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}
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/* Audio driver bootstrap functions */
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static int Audio_Available(void)
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/*
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See if we can open a nonblocking channel.
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Return value '1' means we can.
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Return value '0' means we cannot.
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*/
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{
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/*
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See if we can open a nonblocking channel.
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Return value '1' means we can.
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Return value '0' means we cannot.
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*/
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int available;
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int rval;
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snd_pcm_t *handle;
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available = 0;
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handle = NULL;
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//JB modified to take advantage of software mixer
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rval = snd_pcm_open_preferred(&handle, &card_no, &device_no, OPEN_FLAGS);
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if (rval >= 0)
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{
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available = 1;
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rval = snd_pcm_open_preferred(&handle, NULL, NULL, OPEN_FLAGS);
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if ((rval = snd_pcm_close(handle)) < 0)
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{
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SDL_SetError("snd_pcm_close failed: %s\n",snd_strerror(rval));
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if (rval >= 0){
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available = 1;
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if ((rval = snd_pcm_close(handle)) < 0){
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SDL_SetError("snd_pcm_close failed: %s\n",snd_strerror(rval));
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available = 0;
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}
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}
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}
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else
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{
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SDL_SetError("snd_pcm_open failed: %s\n", snd_strerror(rval));
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else{
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SDL_SetError("snd_pcm_open failed: %s\n", snd_strerror(rval));
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}
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#ifdef DEBUG_AUDIO
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#ifdef DEBUG_AUDIO
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fprintf(stderr,"AudioAvailable rtns %d\n", available);
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#endif
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#endif
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return(available);
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}
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static void Audio_DeleteDevice(SDL_AudioDevice *device)
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{
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#ifdef DEBUG_AUDIO
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#ifdef DEBUG_AUDIO
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fprintf(stderr,"Audio_DeleteDevice\n");
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#endif
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#endif
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free(device->hidden);
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free(device);
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}
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@ -144,15 +136,15 @@ static void Audio_DeleteDevice(SDL_AudioDevice *device)
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static SDL_AudioDevice *Audio_CreateDevice(int devindex)
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{
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SDL_AudioDevice *this;
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#ifdef DEBUG_AUDIO
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#ifdef DEBUG_AUDIO
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fprintf(stderr,"Audio_CreateDevice\n");
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#endif
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#endif
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/* Initialize all variables that we clean on shutdown */
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this = (SDL_AudioDevice *)malloc(sizeof(SDL_AudioDevice));
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if ( this ) {
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memset(this, 0, (sizeof *this));
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this->hidden = (struct SDL_PrivateAudioData *)
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malloc((sizeof *this->hidden));
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malloc((sizeof *this->hidden));
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}
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if ( (this == NULL) || (this->hidden == NULL) ) {
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SDL_OutOfMemory();
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@ -185,117 +177,92 @@ AudioBootStrap ALSA_bootstrap = {
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/* This function waits until it is possible to write a full sound buffer */
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static void NTO_WaitAudio(_THIS)
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{
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int rval;
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int totalbytes,roomavail;
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/*we consider a full sound buffer to be of size pcm_len bytes */
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#ifdef DEBUG_AUDIO
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fprintf(stderr,"NTO_WaitAudio\n");
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#endif
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fd_set wfds;
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while(1)
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FD_SET( audio_fd, &wfds );
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switch( select( audio_fd + 1, NULL, &wfds, NULL, NULL ) )
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{
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memset(&cstatus, 0, sizeof(cstatus));
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if( (rval = snd_pcm_plugin_status(audio_handle, &cstatus)) < 0 )
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{
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SDL_SetError("snd_pcm_plugin_status failed: %s\n", snd_strerror(rval));
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return;
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}
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totalbytes = csetup.buf.block.frag_size *csetup.buf.block.frags;
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roomavail = totalbytes - cstatus.count;
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#ifdef DEBUG_AUDIO
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fprintf(stderr,"NTO_WaitAudio roomavail %d pcm_len %d\n",roomavail,pcm_len);
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#endif
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if ((roomavail >= pcm_len) || (roomavail < 0))
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return;
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SDL_Delay(10);
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}
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case -1:
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case 0:
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/* Error */
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SDL_SetError("select() in NTO_WaitAudio failed: %s\n", strerror(errno));
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break;
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default:
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if(FD_ISSET(audio_fd, &wfds))
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return;
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}
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}
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static void NTO_PlayAudio(_THIS)
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{
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int written, rval;
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int towrite;
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int written, rval;
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int towrite;
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#ifdef DEBUG_AUDIO
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fprintf(stderr, "NTO_PlayAudio\n");
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#endif
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#ifdef DEBUG_AUDIO
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fprintf(stderr, "NTO_PlayAudio\n");
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#endif
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if( !this->enabled)
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return;
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if( !this->enabled){
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return;
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}
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towrite = pcm_len;
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/* Write the audio data, checking for EAGAIN (buffer full) and underrun */
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do {
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/* Write the audio data, checking for EAGAIN (buffer full) and underrun */
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do {
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written = snd_pcm_plugin_write(audio_handle, pcm_buf, towrite);
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#ifdef DEBUG_AUDIO
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#ifdef DEBUG_AUDIO
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fprintf(stderr, "NTO_PlayAudio: written = %d towrite = %d\n",written,towrite);
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#endif
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if (written != towrite)
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{
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if ((errno == EAGAIN) || (errno == EWOULDBLOCK))
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{
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SDL_Delay(1); /* Let a little CPU time go by and try to write again */
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#ifdef DEBUG_AUDIO
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#endif
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if (written != towrite){
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if ((errno == EAGAIN) || (errno == EWOULDBLOCK)){
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SDL_Delay(1); /* Let a little CPU time go by and try to write again */
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#ifdef DEBUG_AUDIO
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fprintf(stderr, "errno == EAGAIN written %d\n", written);
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#endif
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towrite -= written; //we wrote some data
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#endif
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continue;
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}
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else if((errno == EINVAL) || (errno == EIO))
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{
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#ifdef DEBUG_AUDIO
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if(errno == EIO)
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fprintf(stderr,"snd_pcm_plugin_write failed EIO: %s\n", snd_strerror(written));
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if(errno == EINVAL)
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fprintf(stderr,"snd_pcm_plugin_write failed EINVAL: %s\n", snd_strerror(written));
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#endif
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memset(&cstatus, 0, sizeof(cstatus));
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if( (rval = snd_pcm_plugin_status(audio_handle, &cstatus)) < 0 )
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{
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#ifdef DEBUG_AUDIO
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}
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else if((errno == EINVAL) || (errno == EIO)){
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if(errno == EIO){
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#ifdef DEBUG_AUDIO
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fprintf(stderr,"snd_pcm_plugin_write failed EIO: %s\n", snd_strerror(written));
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#endif
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}
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if(errno == EINVAL){
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#ifdef DEBUG_AUDIO
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fprintf(stderr,"snd_pcm_plugin_write failed EINVAL: %s\n", snd_strerror(written));
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#endif
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}
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memset(&cstatus, 0, sizeof(cstatus));
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if( (rval = snd_pcm_plugin_status(audio_handle, &cstatus)) < 0 ){
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#ifdef DEBUG_AUDIO
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fprintf(stderr, "snd_pcm_plugin_status failed %s\n",snd_strerror(rval));
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#endif
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SDL_SetError("snd_pcm_plugin_status failed: %s\n", snd_strerror(rval));
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return;
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}
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#endif
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SDL_SetError("snd_pcm_plugin_status failed: %s\n", snd_strerror(rval));
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return;
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}
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if ( (cstatus.status == SND_PCM_STATUS_UNDERRUN) ||
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(cstatus.status == SND_PCM_STATUS_READY) )
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{
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#ifdef DEBUG_AUDIO
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if ( (cstatus.status == SND_PCM_STATUS_UNDERRUN) || (cstatus.status == SND_PCM_STATUS_READY) ){
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#ifdef DEBUG_AUDIO
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fprintf(stderr, "buffer underrun\n");
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#endif
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if ( (rval = snd_pcm_plugin_prepare (audio_handle,SND_PCM_CHANNEL_PLAYBACK)) < 0 )
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{
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#ifdef DEBUG_AUDIO
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#endif
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if ( (rval = snd_pcm_plugin_prepare (audio_handle,SND_PCM_CHANNEL_PLAYBACK)) < 0 ){
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#ifdef DEBUG_AUDIO
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fprintf(stderr, "NTO_PlayAudio: prepare failed %s\n",snd_strerror(rval));
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#endif
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#endif
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SDL_SetError("snd_pcm_plugin_prepare failed: %s\n",snd_strerror(rval) );
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return;
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}
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}
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continue;
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}
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else
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{
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#ifdef DEBUG_AUDIO
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fprintf(stderr, "NTO_PlayAudio: snd_pcm_plugin_write failed unknown errno %d %s\n",errno, snd_strerror(rval));
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#endif
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else{
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#ifdef DEBUG_AUDIO
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fprintf(stderr, "NTO_PlayAudio: snd_pcm_plugin_write failed unknown errno %d %s\n",errno, snd_strerror(rval));
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#endif
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return;
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}
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}
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@ -303,41 +270,39 @@ static void NTO_PlayAudio(_THIS)
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{
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towrite -= written; //we wrote all remaining data
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}
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} while ( (towrite > 0) && (this->enabled) );
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} while ( (towrite > 0) && (this->enabled) );
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/* If we couldn't write, assume fatal error for now */
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if ( towrite != 0 ) {
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this->enabled = 0;
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}
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/* If we couldn't write, assume fatal error for now */
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if ( towrite != 0 ) {
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this->enabled = 0;
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}
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return;
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}
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static Uint8 *NTO_GetAudioBuf(_THIS)
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{
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#ifdef DEBUG_AUDIO
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fprintf(stderr, "NTO_GetAudioBuf: pcm_buf %X\n",(Uint8 *)pcm_buf);
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#endif
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#ifdef DEBUG_AUDIO
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fprintf(stderr, "NTO_GetAudioBuf: pcm_buf %X\n",(Uint8 *)pcm_buf);
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#endif
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return(pcm_buf);
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}
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static void NTO_CloseAudio(_THIS)
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{
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int rval;
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#ifdef DEBUG_AUDIO
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fprintf(stderr, "NTO_CloseAudio\n");
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#endif
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this->enabled = 0;
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#ifdef DEBUG_AUDIO
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fprintf(stderr, "NTO_CloseAudio\n");
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#endif
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this->enabled = 0;
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if ( audio_handle != NULL ) {
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if ((rval = snd_pcm_plugin_flush(audio_handle,SND_PCM_CHANNEL_PLAYBACK)) < 0)
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{
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SDL_SetError("snd_pcm_plugin_flush failed: %s\n",snd_strerror(rval));
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if ((rval = snd_pcm_plugin_flush(audio_handle,SND_PCM_CHANNEL_PLAYBACK)) < 0){
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SDL_SetError("snd_pcm_plugin_flush failed: %s\n",snd_strerror(rval));
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return;
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}
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if ((rval = snd_pcm_close(audio_handle)) < 0)
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{
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if ((rval = snd_pcm_close(audio_handle)) < 0){
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SDL_SetError("snd_pcm_close failed: %s\n",snd_strerror(rval));
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return;
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}
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@ -353,12 +318,12 @@ static int NTO_OpenAudio(_THIS, SDL_AudioSpec *spec)
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int twidth;
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int found;
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#ifdef DEBUG_AUDIO
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fprintf(stderr, "NTO_OpenAudio\n");
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#endif
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#ifdef DEBUG_AUDIO
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fprintf(stderr, "NTO_OpenAudio\n");
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#endif
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audio_handle = NULL;
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this->enabled = 0;
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this->enabled = 0;
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if ( pcm_buf != NULL ) {
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free((Uint8 *)pcm_buf);
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@ -369,67 +334,51 @@ static int NTO_OpenAudio(_THIS, SDL_AudioSpec *spec)
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init_pcm_cparams(&cparams);
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/* Open the audio device */
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rval = snd_pcm_open_preferred(&audio_handle, &card_no, &device_no, OPEN_FLAGS);
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rval = snd_pcm_open_preferred(&audio_handle, NULL, NULL, OPEN_FLAGS);
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if ( rval < 0 ) {
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SDL_SetError("snd_pcm_open failed: %s\n", snd_strerror(rval));
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return(-1);
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}
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/* set to nonblocking mode */
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if ((rval = snd_pcm_nonblock_mode(audio_handle, 1))<0) //I assume 1 means on
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{
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SDL_SetError("snd_pcm_nonblock_mode failed: %s\n", snd_strerror(rval));
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return(-1);
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}
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/* enable count status parameter */
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if ((rval = snd_pcm_plugin_set_disable(audio_handle, PLUGIN_DISABLE_MMAP))<0)
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{
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SDL_SetError("snd_pcm_plugin_set_disable failed: %s\n", snd_strerror(rval));
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return(-1);
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}
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/* enable count status parameter */
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if ((rval = snd_pcm_plugin_set_disable(audio_handle, PLUGIN_DISABLE_MMAP))<0){
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SDL_SetError("snd_pcm_plugin_set_disable failed: %s\n", snd_strerror(rval));
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return(-1);
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}
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/* Try for a closest match on audio format */
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format = 0;
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found = 0; // can't use format as SND_PCM_SFMT_U8 = 0 in nto
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found = 0; /* can't use format as SND_PCM_SFMT_U8 = 0 in nto */
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for ( test_format = SDL_FirstAudioFormat(spec->format); !found ; )
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{
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#ifdef DEBUG_AUDIO
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#ifdef DEBUG_AUDIO
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fprintf(stderr, "Trying format 0x%4.4x spec->samples %d\n", test_format,spec->samples);
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#endif
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/* if match found set format to equivalent ALSA format */
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switch ( test_format ) {
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#endif
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/* if match found set format to equivalent ALSA format */
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switch ( test_format ) {
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case AUDIO_U8:
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format = SND_PCM_SFMT_U8;
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cparams.buf.block.frag_size = spec->samples * spec->channels;
|
||||
found = 1;
|
||||
break;
|
||||
case AUDIO_S8:
|
||||
format = SND_PCM_SFMT_S8;
|
||||
cparams.buf.block.frag_size = spec->samples * spec->channels;
|
||||
found = 1;
|
||||
break;
|
||||
case AUDIO_S16LSB:
|
||||
format = SND_PCM_SFMT_S16_LE;
|
||||
cparams.buf.block.frag_size = spec->samples*2 * spec->channels;
|
||||
found = 1;
|
||||
break;
|
||||
case AUDIO_S16MSB:
|
||||
format = SND_PCM_SFMT_S16_BE;
|
||||
cparams.buf.block.frag_size = spec->samples*2 * spec->channels;
|
||||
found = 1;
|
||||
break;
|
||||
case AUDIO_U16LSB:
|
||||
format = SND_PCM_SFMT_U16_LE;
|
||||
cparams.buf.block.frag_size = spec->samples*2 * spec->channels;
|
||||
found = 1;
|
||||
break;
|
||||
case AUDIO_U16MSB:
|
||||
format = SND_PCM_SFMT_U16_BE;
|
||||
cparams.buf.block.frag_size = spec->samples*2 * spec->channels;
|
||||
found = 1;
|
||||
break;
|
||||
default:
|
||||
|
|
@ -439,13 +388,13 @@ static int NTO_OpenAudio(_THIS, SDL_AudioSpec *spec)
|
|||
test_format = SDL_NextAudioFormat();
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/* assumes test_format not 0 on success */
|
||||
if ( test_format == 0 ) {
|
||||
SDL_SetError("Couldn't find any hardware audio formats");
|
||||
return(-1);
|
||||
}
|
||||
|
||||
|
||||
spec->format = test_format;
|
||||
|
||||
/* Set the audio format */
|
||||
|
|
@ -454,11 +403,10 @@ static int NTO_OpenAudio(_THIS, SDL_AudioSpec *spec)
|
|||
/* Set mono or stereo audio (currently only two channels supported) */
|
||||
cparams.format.voices = spec->channels;
|
||||
|
||||
#ifdef DEBUG_AUDIO
|
||||
#ifdef DEBUG_AUDIO
|
||||
fprintf(stderr,"intializing channels %d\n", cparams.format.voices);
|
||||
#endif
|
||||
#endif
|
||||
|
||||
|
||||
/* Set rate */
|
||||
cparams.format.rate = spec->freq ;
|
||||
|
||||
|
|
@ -469,80 +417,77 @@ static int NTO_OpenAudio(_THIS, SDL_AudioSpec *spec)
|
|||
return(-1);
|
||||
}
|
||||
|
||||
/* Make sure channel is setup right one last time */
|
||||
memset( &csetup, 0, sizeof( csetup ) );
|
||||
csetup.channel = SND_PCM_CHANNEL_PLAYBACK;
|
||||
if ( snd_pcm_plugin_setup( audio_handle, &csetup ) < 0 )
|
||||
{
|
||||
SDL_SetError("Unable to setup playback channel\n" );
|
||||
return(-1);
|
||||
}
|
||||
else
|
||||
{
|
||||
#ifdef DEBUG_AUDIO
|
||||
fprintf(stderr,"requested format: %d\n",cparams.format.format);
|
||||
fprintf(stderr,"requested frag size: %d\n",cparams.buf.block.frag_size);
|
||||
fprintf(stderr,"requested max frags: %d\n\n",cparams.buf.block.frags_max);
|
||||
/* Make sure channel is setup right one last time */
|
||||
memset( &csetup, 0, sizeof( csetup ) );
|
||||
csetup.channel = SND_PCM_CHANNEL_PLAYBACK;
|
||||
if ( snd_pcm_plugin_setup( audio_handle, &csetup ) < 0 )
|
||||
{
|
||||
SDL_SetError("Unable to setup playback channel\n" );
|
||||
return(-1);
|
||||
}
|
||||
else
|
||||
{
|
||||
#ifdef DEBUG_AUDIO
|
||||
fprintf(stderr,"requested format: %d\n",cparams.format.format);
|
||||
fprintf(stderr,"requested frag size: %d\n",cparams.buf.block.frag_size);
|
||||
fprintf(stderr,"requested max frags: %d\n\n",cparams.buf.block.frags_max);
|
||||
|
||||
fprintf(stderr,"real format: %d\n", csetup.format.format );
|
||||
fprintf(stderr,"real frag size : %d\n", csetup.buf.block.frag_size );
|
||||
fprintf(stderr,"real format: %d\n", csetup.format.format );
|
||||
fprintf(stderr,"real frag size : %d\n", csetup.buf.block.frag_size );
|
||||
fprintf(stderr,"real max frags : %d\n", csetup.buf.block.frags_max );
|
||||
#endif // DEBUG_AUDIO
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
/*
|
||||
Allocate memory to the audio buffer and initialize with silence (Note that
|
||||
buffer size must be a multiple of fragment size, so find closest multiple)
|
||||
*/
|
||||
|
||||
twidth = snd_pcm_format_width(format);
|
||||
if (twidth < 0) {
|
||||
printf("snd_pcm_format_width failed\n");
|
||||
twidth = 0;
|
||||
}
|
||||
|
||||
/* Allocate memory to the audio buffer and initialize with silence
|
||||
(Note that buffer size must be a multiple of fragment size, so find closest multiple)
|
||||
*/
|
||||
|
||||
twidth = snd_pcm_format_width(format);
|
||||
if (twidth < 0) {
|
||||
printf("snd_pcm_format_width failed\n");
|
||||
twidth = 0;
|
||||
}
|
||||
|
||||
#ifdef DEBUG_AUDIO
|
||||
fprintf(stderr,"format is %d bits wide\n",twidth);
|
||||
#endif
|
||||
|
||||
pcm_len = spec->size ;
|
||||
|
||||
|
||||
#ifdef DEBUG_AUDIO
|
||||
fprintf(stderr,"pcm_len set to %d\n", pcm_len);
|
||||
#endif
|
||||
|
||||
if (pcm_len == 0)
|
||||
{
|
||||
pcm_len = csetup.buf.block.frag_size;
|
||||
}
|
||||
|
||||
pcm_buf = (Uint8*)malloc(pcm_len);
|
||||
if (pcm_buf == NULL) {
|
||||
SDL_SetError("pcm_buf malloc failed\n");
|
||||
return(-1);
|
||||
}
|
||||
memset(pcm_buf,spec->silence,pcm_len);
|
||||
#ifdef DEBUG_AUDIO
|
||||
fprintf(stderr,"format is %d bits wide\n",twidth);
|
||||
#endif
|
||||
|
||||
#ifdef DEBUG_AUDIO
|
||||
pcm_len = spec->size ;
|
||||
|
||||
#ifdef DEBUG_AUDIO
|
||||
fprintf(stderr,"pcm_len set to %d\n", pcm_len);
|
||||
#endif
|
||||
|
||||
if (pcm_len == 0){
|
||||
pcm_len = csetup.buf.block.frag_size;
|
||||
}
|
||||
|
||||
pcm_buf = (Uint8*)malloc(pcm_len);
|
||||
if (pcm_buf == NULL) {
|
||||
SDL_SetError("pcm_buf malloc failed\n");
|
||||
return(-1);
|
||||
}
|
||||
memset(pcm_buf,spec->silence,pcm_len);
|
||||
|
||||
#ifdef DEBUG_AUDIO
|
||||
fprintf(stderr,"pcm_buf malloced and silenced.\n");
|
||||
#endif
|
||||
#endif
|
||||
|
||||
/* get the file descriptor */
|
||||
if( (audio_fd = snd_pcm_file_descriptor(audio_handle, SND_PCM_CHANNEL_PLAYBACK)) < 0)
|
||||
{
|
||||
fprintf(stderr, "snd_pcm_file_descriptor failed with error code: %d\n", audio_fd);
|
||||
}
|
||||
/* get the file descriptor */
|
||||
if( (audio_fd = snd_pcm_file_descriptor(audio_handle, SND_PCM_CHANNEL_PLAYBACK)) < 0){
|
||||
fprintf(stderr, "snd_pcm_file_descriptor failed with error code: %d\n", audio_fd);
|
||||
}
|
||||
|
||||
/* Trigger audio playback */
|
||||
rval = snd_pcm_plugin_prepare( audio_handle, SND_PCM_CHANNEL_PLAYBACK);
|
||||
if (rval < 0) {
|
||||
SDL_SetError("snd_pcm_plugin_prepare failed: %s\n", snd_strerror (rval));
|
||||
return(-1);
|
||||
SDL_SetError("snd_pcm_plugin_prepare failed: %s\n", snd_strerror (rval));
|
||||
return(-1);
|
||||
}
|
||||
|
||||
this->enabled = 1;
|
||||
|
||||
|
||||
this->enabled = 1;
|
||||
|
||||
/* Get the parent process id (we're the parent of the audio thread) */
|
||||
parent = getpid();
|
||||
|
||||
|
|
@ -550,5 +495,3 @@ static int NTO_OpenAudio(_THIS, SDL_AudioSpec *spec)
|
|||
return(0);
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue