##### Linux specific variables #####
-# Recommended for: anyone not using ALSA 0.5
-OBJ_LINUXSOUND=$(OBJ_COMMONSOUND) snd_oss.o
-LIB_LINUXSOUND=
-# Recommended for: anyone using ALSA 0.5
-#OBJ_LINUXSOUND=$(OBJ_COMMONSOUND) snd_alsa_0_5.o
-#LIB_LINUXSOUND=-lasound
-# Recommended for: no one (this driver needs to be updated, it doesn't compile anymore)
-#OBJ_LINUXSOUND=$(OBJ_COMMONSOUND) snd_alsa_0_9.o
-#LIB_LINUXSOUND=-lasound
+# Recommended for: anyone not using ALSA
+#OBJ_LINUXSOUND=$(OBJ_COMMONSOUND) snd_oss.o
+#LIB_LINUXSOUND=
+# Recommended for: anyone using ALSA
+OBJ_LINUXSOUND=$(OBJ_COMMONSOUND) snd_alsa.o
+LIB_LINUXSOUND=-lasound
# Recommended for: anyone who can't use the above drivers
#OBJ_LINUXSOUND=$(OBJ_NOSOUND)
#LIB_LINUXSOUND=
--- /dev/null
+/*
+ snd_alsa.c
+
+ Support for the ALSA 1.0.1 sound driver
+
+ Copyright (C) 1999,2000 contributors of the QuakeForge project
+ Please see the file "AUTHORS" for a list of contributors
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License
+ as published by the Free Software Foundation; either version 2
+ of the License, or (at your option) any later version.
+
+ This program 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to:
+
+ Free Software Foundation, Inc.
+ 59 Temple Place - Suite 330
+ Boston, MA 02111-1307, USA
+
+*/
+
+#include <alsa/asoundlib.h>
+
+#include "quakedef.h"
+
+static int snd_inited;
+static int snd_blocked = 0;
+static snd_pcm_uframes_t buffer_size;
+
+static const char *pcmname = NULL;
+static snd_pcm_t *pcm;
+
+qboolean SNDDMA_Init (void)
+{
+ int err, i;
+ int bps = -1, stereo = -1;
+ unsigned int rate = 0;
+ snd_pcm_hw_params_t *hw;
+ snd_pcm_sw_params_t *sw;
+ snd_pcm_uframes_t frag_size;
+
+ snd_pcm_hw_params_alloca (&hw);
+ snd_pcm_sw_params_alloca (&sw);
+
+ if ((i=COM_CheckParm("-sndpcm"))!=0)
+ pcmname=com_argv[i+1];
+ if (!pcmname)
+ pcmname = "default";
+
+ if ((i=COM_CheckParm("-sndbits")) != 0)
+ {
+ bps = atoi(com_argv[i+1]);
+ if (bps != 16 && bps != 8)
+ {
+ Con_Printf("Error: invalid sample bits: %d\n", bps);
+ return false;
+ }
+ }
+
+ if ((i=COM_CheckParm("-sndspeed")) != 0)
+ {
+ rate = atoi(com_argv[i+1]);
+ if (rate!=44100 && rate!=22050 && rate!=11025)
+ {
+ Con_Printf("Error: invalid sample rate: %d\n", rate);
+ return false;
+ }
+ }
+
+ if ((i=COM_CheckParm("-sndmono")) != 0)
+ stereo=0;
+ if ((i=COM_CheckParm("-sndstereo")) != 0)
+ stereo=1;
+
+ err = snd_pcm_open (&pcm, pcmname, SND_PCM_STREAM_PLAYBACK,
+ SND_PCM_NONBLOCK);
+ if (0 > err) {
+ Sys_Printf ("Error: audio open error: %s\n", snd_strerror (err));
+ return 0;
+ }
+ Sys_Printf ("ALSA: Using PCM %s.\n", pcmname);
+
+ err = snd_pcm_hw_params_any (pcm, hw);
+ if (0 > err) {
+ Sys_Printf ("ALSA: error setting hw_params_any. %s\n",
+ snd_strerror (err));
+ goto error;
+ }
+
+ err = snd_pcm_hw_params_set_access (pcm, hw,
+ SND_PCM_ACCESS_MMAP_INTERLEAVED);
+ if (0 > err) {
+ Sys_Printf ("ALSA: Failure to set noninterleaved PCM access. %s\n"
+ "Note: Interleaved is not supported\n",
+ snd_strerror (err));
+ goto error;
+ }
+
+ switch (bps) {
+ case -1:
+ err = snd_pcm_hw_params_set_format (pcm, hw,
+ SND_PCM_FORMAT_S16);
+ if (0 <= err) {
+ bps = 16;
+ } else if (0 <= (err = snd_pcm_hw_params_set_format (pcm, hw,
+ SND_PCM_FORMAT_U8))) {
+ bps = 8;
+ } else {
+ Sys_Printf ("ALSA: no useable formats. %s\n",
+ snd_strerror (err));
+ goto error;
+ }
+ break;
+ case 8:
+ case 16:
+ err = snd_pcm_hw_params_set_format (pcm, hw, bps == 8 ?
+ SND_PCM_FORMAT_U8 :
+ SND_PCM_FORMAT_S16);
+ if (0 > err) {
+ Sys_Printf ("ALSA: no usable formats. %s\n",
+ snd_strerror (err));
+ goto error;
+ }
+ break;
+ default:
+ Sys_Printf ("ALSA: desired format not supported\n");
+ goto error;
+ }
+
+ switch (stereo) {
+ case -1:
+ err = snd_pcm_hw_params_set_channels (pcm, hw, 2);
+ if (0 <= err) {
+ stereo = 1;
+ } else if (0 <= (err = snd_pcm_hw_params_set_channels (pcm, hw,
+ 1))) {
+ stereo = 0;
+ } else {
+ Sys_Printf ("ALSA: no usable channels. %s\n",
+ snd_strerror (err));
+ goto error;
+ }
+ break;
+ case 0:
+ case 1:
+ err = snd_pcm_hw_params_set_channels (pcm, hw, stereo ? 2 : 1);
+ if (0 > err) {
+ Sys_Printf ("ALSA: no usable channels. %s\n",
+ snd_strerror (err));
+ goto error;
+ }
+ break;
+ default:
+ Sys_Printf ("ALSA: desired channels not supported\n");
+ goto error;
+ }
+
+ switch (rate) {
+ case 0:
+ rate = 44100;
+ err = snd_pcm_hw_params_set_rate_near (pcm, hw, &rate, 0);
+ if (0 <= err) {
+ frag_size = 32 * bps;
+ } else {
+ rate = 22050;
+ err = snd_pcm_hw_params_set_rate_near (pcm, hw, &rate, 0);
+ if (0 <= err) {
+ frag_size = 16 * bps;
+ } else {
+ rate = 11025;
+ err = snd_pcm_hw_params_set_rate_near (pcm, hw, &rate,
+ 0);
+ if (0 <= err) {
+ frag_size = 8 * bps;
+ } else {
+ Sys_Printf ("ALSA: no usable rates. %s\n",
+ snd_strerror (err));
+ goto error;
+ }
+ }
+ }
+ break;
+ case 11025:
+ case 22050:
+ case 44100:
+ err = snd_pcm_hw_params_set_rate_near (pcm, hw, &rate, 0);
+ if (0 > err) {
+ Sys_Printf ("ALSA: desired rate %i not supported. %s\n", rate,
+ snd_strerror (err));
+ goto error;
+ }
+ frag_size = 8 * bps * rate / 11025;
+ break;
+ default:
+ Sys_Printf ("ALSA: desired rate %i not supported.\n", rate);
+ goto error;
+ }
+
+ err = snd_pcm_hw_params_set_period_size_near (pcm, hw, &frag_size, 0);
+ if (0 > err) {
+ Sys_Printf ("ALSA: unable to set period size near %i. %s\n",
+ (int) frag_size, snd_strerror (err));
+ goto error;
+ }
+ err = snd_pcm_hw_params (pcm, hw);
+ if (0 > err) {
+ Sys_Printf ("ALSA: unable to install hw params: %s\n",
+ snd_strerror (err));
+ goto error;
+ }
+ err = snd_pcm_sw_params_current (pcm, sw);
+ if (0 > err) {
+ Sys_Printf ("ALSA: unable to determine current sw params. %s\n",
+ snd_strerror (err));
+ goto error;
+ }
+ err = snd_pcm_sw_params_set_start_threshold (pcm, sw, ~0U);
+ if (0 > err) {
+ Sys_Printf ("ALSA: unable to set playback threshold. %s\n",
+ snd_strerror (err));
+ goto error;
+ }
+ err = snd_pcm_sw_params_set_stop_threshold (pcm, sw, ~0U);
+ if (0 > err) {
+ Sys_Printf ("ALSA: unable to set playback stop threshold. %s\n",
+ snd_strerror (err));
+ goto error;
+ }
+ err = snd_pcm_sw_params (pcm, sw);
+ if (0 > err) {
+ Sys_Printf ("ALSA: unable to install sw params. %s\n",
+ snd_strerror (err));
+ goto error;
+ }
+
+ shm->format.channels = stereo + 1;
+ shm->samplepos = 0;
+ shm->format.width = bps / 8;
+
+ err = snd_pcm_hw_params_get_buffer_size (hw, &buffer_size);
+ if (0 > err) {
+ Sys_Printf ("ALSA: unable to get buffer size. %s\n",
+ snd_strerror (err));
+ goto error;
+ }
+
+ shm->samples = buffer_size * shm->format.channels; // mono samples in buffer
+ shm->format.speed = rate;
+ SNDDMA_GetDMAPos (); // sets shm->buffer
+ Sys_Printf ("%5d stereo\n", shm->format.channels - 1);
+ Sys_Printf ("%5d samples\n", shm->samples);
+ Sys_Printf ("%5d samplepos\n", shm->samplepos);
+ Sys_Printf ("%5d samplebits\n", shm->format.width * 8);
+ Sys_Printf ("%5d speed\n", shm->format.speed);
+ Sys_Printf ("0x%x dma buffer\n", (int) shm->buffer);
+
+ snd_inited = 1;
+ return true;
+
+error:
+ snd_pcm_close (pcm);
+ return false;
+}
+
+int SNDDMA_GetDMAPos (void)
+{
+ const snd_pcm_channel_area_t *areas;
+ snd_pcm_uframes_t offset;
+ snd_pcm_uframes_t nframes = shm->samples/shm->format.channels;
+
+ if (!snd_inited)
+ return 0;
+
+ snd_pcm_avail_update (pcm);
+ snd_pcm_mmap_begin (pcm, &areas, &offset, &nframes);
+ offset *= shm->format.channels;
+ nframes *= shm->format.channels;
+ shm->samplepos = offset;
+ shm->buffer = areas->addr;
+ return shm->samplepos;
+}
+
+void SNDDMA_Shutdown (void)
+{
+ if (snd_inited) {
+ snd_pcm_close (pcm);
+ snd_inited = 0;
+ }
+}
+
+/*
+ SNDDMA_Submit
+
+ Send sound to device if buffer isn't really the dma buffer
+*/
+void SNDDMA_Submit (void)
+{
+ int state;
+ int count = paintedtime - soundtime;
+ const snd_pcm_channel_area_t *areas;
+ snd_pcm_uframes_t nframes;
+ snd_pcm_uframes_t offset;
+
+ if (snd_blocked)
+ return;
+
+ nframes = count / shm->format.channels;
+
+ snd_pcm_avail_update (pcm);
+ snd_pcm_mmap_begin (pcm, &areas, &offset, &nframes);
+
+ state = snd_pcm_state (pcm);
+
+ switch (state) {
+ case SND_PCM_STATE_PREPARED:
+ snd_pcm_mmap_commit (pcm, offset, nframes);
+ snd_pcm_start (pcm);
+ break;
+ case SND_PCM_STATE_RUNNING:
+ snd_pcm_mmap_commit (pcm, offset, nframes);
+ break;
+ default:
+ break;
+ }
+}
+
+void *S_LockBuffer(void)
+{
+ return shm->buffer;
+}
+
+void S_UnlockBuffer(void)
+{
+}
+++ /dev/null
-/*
- snd_alsa_0_5.c
-
- Support for ALSA 0.5, the old stable version of ALSA.
-
- Copyright (C) 1999,2000 contributors of the QuakeForge project
- Please see the file "AUTHORS" for a list of contributors
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License
- as published by the Free Software Foundation; either version 2
- of the License, or (at your option) any later version.
-
- This program 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 General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to:
-
- Free Software Foundation, Inc.
- 59 Temple Place - Suite 330
- Boston, MA 02111-1307, USA
-
- $Id$
-*/
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include "quakedef.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#include <fcntl.h>
-#include <sys/types.h>
-#ifdef HAVE_SYS_IOCTL_H
-# include <sys/ioctl.h>
-#endif
-#ifdef HAVE_SYS_MMAN_H
-# include <sys/mman.h>
-#endif
-#if defined HAVE_SYS_SOUNDCARD_H
-# include <sys/soundcard.h>
-#elif defined HAVE_LINUX_SOUNDCARD_H
-# include <linux/soundcard.h>
-#elif HAVE_MACHINE_SOUNDCARD_H
-# include <machine/soundcard.h>
-#endif
-
-#include <sys/asoundlib.h>
-
-#ifndef MAP_FAILED
-# define MAP_FAILED ((void*)-1)
-#endif
-
-extern int soundtime;
-static int snd_inited;
-
-static snd_pcm_t *pcm_handle;
-static struct snd_pcm_channel_info cinfo;
-static struct snd_pcm_channel_params params;
-static struct snd_pcm_channel_setup setup;
-static snd_pcm_mmap_control_t *mmap_control = NULL;
-static char *mmap_data = NULL;
-static int card=-1,dev=-1;
-
-int check_card(int card)
-{
- snd_ctl_t *handle;
- snd_ctl_hw_info_t info;
- int rc;
-
- if ((rc = snd_ctl_open(&handle, card)) < 0) {
- Con_Printf("Error: control open (%i): %s\n", card, snd_strerror(rc));
- return rc;
- }
- if ((rc = snd_ctl_hw_info(handle, &info)) < 0) {
- Con_Printf("Error: control hardware info (%i): %s\n", card,
- snd_strerror(rc));
- snd_ctl_close(handle);
- return rc;
- }
- snd_ctl_close(handle);
- if (dev==-1) {
- for (dev = 0; dev < info.pcmdevs; dev++) {
- if ((rc=snd_pcm_open(&pcm_handle,card,dev,
- SND_PCM_OPEN_PLAYBACK
- | SND_PCM_OPEN_NONBLOCK))==0) {
- return 0;
- }
- }
- } else {
- if (dev>=0 && dev <info.pcmdevs) {
- if ((rc=snd_pcm_open(&pcm_handle,card,dev,
- SND_PCM_OPEN_PLAYBACK
- | SND_PCM_OPEN_NONBLOCK))==0) {
- return 0;
- }
- }
- }
- return 1;
-}
-
-qboolean SNDDMA_Init(void)
-{
- int rc=0,i;
- char *err_msg="";
- int rate=-1,format=-1,bps,stereo=-1,frag_size;
- unsigned int mask;
-
- mask = snd_cards_mask();
- if (!mask) {
- Con_Print("No sound cards detected\n");
- return 0;
- }
- if ((i=COM_CheckParm("-sndcard"))!=0) {
- card=atoi(com_argv[i+1]);
- }
- if ((i=COM_CheckParm("-snddev"))!=0) {
- dev=atoi(com_argv[i+1]);
- }
- if ((i=COM_CheckParm("-sndbits")) != 0) {
- i = atoi(com_argv[i+1]);
- if (i==16) {
- format = SND_PCM_SFMT_S16_LE;
- } else if (i==8) {
- format = SND_PCM_SFMT_U8;
- } else {
- Con_Printf("Error: invalid sample bits: %d\n", i);
- return 0;
- }
- }
- if ((i=COM_CheckParm("-sndspeed")) != 0) {
- rate = atoi(com_argv[i+1]);
- if (rate!=44100 && rate!=22050 && rate!=11025) {
- Con_Printf("Error: invalid sample rate: %d\n", rate);
- return 0;
- }
- }
- if ((i=COM_CheckParm("-sndmono")) != 0) {
- stereo=0;
- }
- if (card==-1) {
- for (card=0; card<SND_CARDS; card++) {
- if (!(mask & (1<<card)))
- continue;
- rc=check_card(card);
- if (rc<0)
- return 0;
- if (!rc)
- goto dev_openned;
- }
- } else {
- if (dev==-1) {
- rc=check_card(card);
- if (rc<0)
- return 0;
- if (!rc)
- goto dev_openned;
- } else {
- if ((rc=snd_pcm_open(&pcm_handle,card,dev,
- SND_PCM_OPEN_PLAYBACK
- | SND_PCM_OPEN_NONBLOCK))<0) {
- Con_Printf("Error: audio open error: %s\n", snd_strerror(rc));
- return 0;
- }
- goto dev_openned;
- }
- }
- Con_Printf("Error: audio open error: %s\n", snd_strerror(rc));
- return 0;
-
- dev_openned:
- Con_Printf("Using card %d, device %d.\n", card, dev);
- memset(&cinfo, 0, sizeof(cinfo));
- cinfo.channel = SND_PCM_CHANNEL_PLAYBACK;
- snd_pcm_channel_info(pcm_handle, &cinfo);
- Con_Printf("%08x %08x %08x\n",cinfo.flags,cinfo.formats,cinfo.rates);
- if ((rate==-1 || rate==44100) && cinfo.rates & SND_PCM_RATE_44100) {
- rate=44100;
- frag_size=512; /* assuming stereo 8 bit */
- } else if ((rate==-1 || rate==22050) && cinfo.rates & SND_PCM_RATE_22050) {
- rate=22050;
- frag_size=256; /* assuming stereo 8 bit */
- } else if ((rate==-1 || rate==11025) && cinfo.rates & SND_PCM_RATE_11025) {
- rate=11025;
- frag_size=128; /* assuming stereo 8 bit */
- } else {
- Con_Print("ALSA: desired rates not supported\n");
- goto error_2;
- }
- if ((format==-1 || format==SND_PCM_SFMT_S16_LE) && cinfo.formats & SND_PCM_FMT_S16_LE) {
- format=SND_PCM_SFMT_S16_LE;
- bps=16;
- frag_size*=2;
- } else if ((format==-1 || format==SND_PCM_SFMT_U8) && cinfo.formats & SND_PCM_FMT_U8) {
- format=SND_PCM_SFMT_U8;
- bps=8;
- } else {
- Con_Print("ALSA: desired formats not supported\n");
- goto error_2;
- }
- if (stereo && cinfo.max_voices>=2) {
- stereo=1;
- } else {
- stereo=0;
- frag_size/=2;
- }
-
- err_msg="audio munmap";
- if ((rc=snd_pcm_munmap(pcm_handle, SND_PCM_CHANNEL_PLAYBACK))<0)
- goto error;
-
- memset(¶ms, 0, sizeof(params));
- params.channel = SND_PCM_CHANNEL_PLAYBACK;
- params.mode = SND_PCM_MODE_BLOCK;
- params.format.interleave=1;
- params.format.format=format;
- params.format.rate=rate;
- params.format.voices=stereo+1;
- params.start_mode = SND_PCM_START_GO;
- params.stop_mode = SND_PCM_STOP_ROLLOVER;
- params.buf.block.frag_size=frag_size;
- params.buf.block.frags_min=1;
- params.buf.block.frags_max=-1;
- err_msg="audio params";
- if ((rc=snd_pcm_channel_params(pcm_handle, ¶ms))<0)
- goto error;
-
- err_msg="audio mmap";
- if ((rc=snd_pcm_mmap(pcm_handle, SND_PCM_CHANNEL_PLAYBACK, &mmap_control, (void **)&mmap_data))<0)
- goto error;
- err_msg="audio prepare";
- if ((rc=snd_pcm_plugin_prepare(pcm_handle, SND_PCM_CHANNEL_PLAYBACK))<0)
- goto error;
-
- memset(&setup, 0, sizeof(setup));
- setup.mode = SND_PCM_MODE_BLOCK;
- setup.channel = SND_PCM_CHANNEL_PLAYBACK;
- err_msg="audio setup";
- if ((rc=snd_pcm_channel_setup(pcm_handle, &setup))<0)
- goto error;
-
- memset((dma_t*)shm,0,sizeof(*shm));
- shm->channels=setup.format.voices;
- shm->samplepos=0; // in mono samples
- shm->samplebits=setup.format.format==SND_PCM_SFMT_S16_LE?16:8;
- shm->samples=setup.buf.block.frags*setup.buf.block.frag_size/(shm->samplebits/8); // mono samples in buffer
- shm->speed=setup.format.rate;
- shm->buffer=(unsigned char*)mmap_data;
- Con_Printf("%5d stereo\n", shm->channels - 1);
- Con_Printf("%5d samples\n", shm->samples);
- Con_Printf("%5d samplepos\n", shm->samplepos);
- Con_Printf("%5d samplebits\n", shm->samplebits);
- Con_Printf("%5d speed\n", shm->speed);
- Con_Printf("0x%x dma buffer\n", (int)shm->buffer);
- Con_Printf("%5d total_channels\n", total_channels);
-
- snd_inited=1;
- return 1;
- error:
- Con_Printf("Error: %s: %s\n", err_msg, snd_strerror(rc));
- error_2:
- snd_pcm_close(pcm_handle);
- return 0;
-}
-
-int SNDDMA_GetDMAPos(void)
-{
- if (!snd_inited) return 0;
- shm->samplepos=(mmap_control->status.frag_io+1)*setup.buf.block.frag_size/(shm->samplebits/8);
- return shm->samplepos;
-}
-
-void SNDDMA_Shutdown(void)
-{
- if (snd_inited)
- {
- snd_pcm_close(pcm_handle);
- snd_inited = 0;
- }
-}
-
-/*
-==============
-SNDDMA_Submit
-
-Send sound to device if buffer isn't really the dma buffer
-===============
-*/
-void SNDDMA_Submit(void)
-{
- int count=paintedtime-soundtime;
- int i,s,e;
- int rc;
-
- count+=setup.buf.block.frag_size-1;
- count/=setup.buf.block.frag_size;
- s=soundtime/setup.buf.block.frag_size;
- e=s+count;
- for (i=s; i<e; i++)
- mmap_control->fragments[i % setup.buf.block.frags].data=1;
- switch (mmap_control->status.status) {
- case SND_PCM_STATUS_PREPARED:
- if ((rc=snd_pcm_channel_go(pcm_handle, SND_PCM_CHANNEL_PLAYBACK))<0) {
- fprintf(stderr, "unable to start playback. %s\n",
- snd_strerror(rc));
- exit(1);
- }
- break;
- case SND_PCM_STATUS_RUNNING:
- break;
- case SND_PCM_STATUS_UNDERRUN:
- if ((rc=snd_pcm_plugin_prepare(pcm_handle, SND_PCM_CHANNEL_PLAYBACK))<0) {
- fprintf(stderr, "underrun: playback channel prepare error. %s\n",
- snd_strerror(rc));
- exit(1);
- }
- break;
- default:
- break;
- }
-}
-
-void *S_LockBuffer(void)
-{
- return shm->buffer;
-}
-
-void S_UnlockBuffer(void)
-{
-}
-
+++ /dev/null
-/*
- snd_alsa_0_9.c
-
- Support for ALSA 0.9 sound driver (cvs development version)
-
- Copyright (C) 1999,2000 contributors of the QuakeForge project
- Please see the file "AUTHORS" for a list of contributors
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License
- as published by the Free Software Foundation; either version 2
- of the License, or (at your option) any later version.
-
- This program 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 General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to:
-
- Free Software Foundation, Inc.
- 59 Temple Place - Suite 330
- Boston, MA 02111-1307, USA
-
- $Id$
-*/
-
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#include <stdio.h>
-
-#include <sys/asoundlib.h>
-
-#include "quakedef.h"
-#include "sound.h"
-#include "console.h"
-
-static int snd_inited;
-
-static snd_pcm_t *pcm;
-static const snd_pcm_channel_area_t *mmap_areas;
-static char *pcmname = NULL;
-size_t buffer_size;
-
-qboolean SNDDMA_Init(void)
-{
- int err,i;
- int rate=-1,bps=-1,stereo=-1,frag_size;
- snd_pcm_hw_params_t *hw;
- snd_pcm_sw_params_t *sw;
- snd_pcm_hw_params_alloca(&hw);
- snd_pcm_sw_params_alloca(&sw);
-
- if ((i=COM_CheckParm("-sndpcm"))!=0) {
- pcmname=com_argv[i+1];
- }
- if ((i=COM_CheckParm("-sndbits")) != 0) {
- bps = atoi(com_argv[i+1]);
- if (bps != 16 && bps != 8) {
- Con_Printf("Error: invalid sample bits: %d\n", i);
- return 0;
- }
- }
- if ((i=COM_CheckParm("-sndspeed")) != 0) {
- rate = atoi(com_argv[i+1]);
- if (rate!=44100 && rate!=22050 && rate!=11025) {
- Con_Printf("Error: invalid sample rate: %d\n", rate);
- return 0;
- }
- }
- if ((i=COM_CheckParm("-sndmono")) != 0) {
- stereo=0;
- }
- if ((i=COM_CheckParm("-sndstereo")) != 0) {
- stereo=1;
- }
- if (!pcmname)
- pcmname = "plug:0,0";
- if ((err=snd_pcm_open(&pcm, pcmname,
- SND_PCM_STREAM_PLAYBACK, SND_PCM_NONBLOCK))<0) {
- Con_Printf("Error: audio open error: %s\n", snd_strerror(err));
- return 0;
- }
-
- Con_Printf("Using PCM %s.\n", pcmname);
- snd_pcm_hw_params_any(pcm, hw);
-
-
- switch (rate) {
- case -1:
- if (snd_pcm_hw_params_set_rate_near(pcm, hw, 44100, 0) >= 0) {
- frag_size = 256; /* assuming stereo 8 bit */
- rate = 44100;
- } else if (snd_pcm_hw_params_set_rate_near(pcm, hw, 22050, 0) >= 0) {
- frag_size = 128; /* assuming stereo 8 bit */
- rate = 22050;
- } else if (snd_pcm_hw_params_set_rate_near(pcm, hw, 11025, 0) >= 0) {
- frag_size = 64; /* assuming stereo 8 bit */
- rate = 11025;
- } else {
- Con_Print("ALSA: no useable rates\n");
- goto error;
- }
- break;
- case 11025:
- case 22050:
- case 44100:
- if (snd_pcm_hw_params_set_rate_near(pcm, hw, rate, 0) >= 0) {
- frag_size = 64 * rate / 11025; /* assuming stereo 8 bit */
- break;
- }
- /* Fall through */
- default:
- Con_Print("ALSA: desired rate not supported\n");
- goto error;
- }
-
- switch (bps) {
- case -1:
- if (snd_pcm_hw_params_set_format(pcm, hw, SND_PCM_FORMAT_S16_LE) >= 0) {
- bps = 16;
- } else if (snd_pcm_hw_params_set_format(pcm, hw, SND_PCM_FORMAT_U8) >= 0) {
- bps = 8;
- } else {
- Con_Print("ALSA: no useable formats\n");
- goto error;
- }
- break;
- case 8:
- case 16:
- if (snd_pcm_hw_params_set_format(pcm, hw,
- bps == 8 ? SND_PCM_FORMAT_U8 :
- SND_PCM_FORMAT_S16) >= 0) {
- break;
- }
- /* Fall through */
- default:
- Con_Print("ALSA: desired format not supported\n");
- goto error;
- }
-
- if (snd_pcm_hw_params_set_access(pcm, hw,
- SND_PCM_ACCESS_MMAP_INTERLEAVED) < 0) {
- Con_Print("ALSA: interleaved is not supported\n");
- goto error;
- }
-
- switch (stereo) {
- case -1:
- if (snd_pcm_hw_params_set_channels(pcm, hw, 2) >= 0) {
- stereo = 1;
- } else if (snd_pcm_hw_params_set_channels(pcm, hw, 1) >= 0) {
- stereo = 0;
- } else {
- Con_Print("ALSA: no useable channels\n");
- goto error;
- }
- break;
- case 0:
- case 1:
- if (snd_pcm_hw_params_set_channels(pcm, hw, stereo ? 2 : 1) >= 0)
- break;
- /* Fall through */
- default:
- Con_Print("ALSA: desired channels not supported\n");
- goto error;
- }
-
- snd_pcm_hw_params_set_period_size_near(pcm, hw, frag_size, 0);
-
- err = snd_pcm_hw_params(pcm, hw);
- if (err < 0) {
- Con_Print("ALSA: unable to install hw params\n");
- goto error;
- }
-
- snd_pcm_sw_params_current(pcm, sw);
- snd_pcm_sw_params_set_start_mode(pcm, sw, SND_PCM_START_EXPLICIT);
- snd_pcm_sw_params_set_xrun_mode(pcm, sw, SND_PCM_XRUN_NONE);
-
- err = snd_pcm_sw_params(pcm, sw);
- if (err < 0) {
- Con_Print("ALSA: unable to install sw params\n");
- goto error;
- }
-
- mmap_areas = snd_pcm_mmap_running_areas(pcm);
-
- memset((dma_t*)shm,0,sizeof(*shm));
- shm->channels=stereo+1;
- shm->samplepos=0; // in mono samples
- shm->samplebits=bps;
- buffer_size = snd_pcm_hw_params_get_buffer_size(hw);
- shm->samples=buffer_size*shm->channels; // mono samples in buffer
- shm->speed=rate;
- shm->buffer=(unsigned char*)mmap_areas->addr;
- Con_Printf("%5d stereo\n", shm->channels - 1);
- Con_Printf("%5d samples\n", shm->samples);
- Con_Printf("%5d samplepos\n", shm->samplepos);
- Con_Printf("%5d samplebits\n", shm->samplebits);
- Con_Printf("%5d speed\n", shm->speed);
- Con_Printf("0x%x dma buffer\n", (int)shm->buffer);
- Con_Printf("%5d total_channels\n", total_channels);
-
- snd_inited=1;
- return 1;
- error:
- snd_pcm_close(pcm);
- return 0;
-}
-
-static inline int
-get_hw_ptr(void)
-{
- size_t app_ptr;
- snd_pcm_sframes_t delay;
- int hw_ptr;
-
- if (snd_pcm_state (pcm) != SND_PCM_STATE_RUNNING)
- return 0;
- app_ptr = snd_pcm_mmap_offset (pcm);
- snd_pcm_delay (pcm, &delay);
- hw_ptr = app_ptr - delay;
- if (hw_ptr < 0)
- hw_ptr += buffer_size;
- return hw_ptr;
-}
-
-int SNDDMA_GetDMAPos(void)
-{
- int hw_ptr;
-
- if (!snd_inited) return 0;
-
- hw_ptr = get_hw_ptr();
- hw_ptr *= shm->channels;
- shm->samplepos = hw_ptr;
- return shm->samplepos;
-}
-
-void SNDDMA_Shutdown(void)
-{
- if (snd_inited)
- {
- snd_pcm_close(pcm);
- snd_inited = 0;
- }
-}
-
-/*
-==============
-SNDDMA_Submit
-
-Send sound to device if buffer isn't really the dma buffer
-===============
-*/
-void SNDDMA_Submit(void)
-{
- int count = paintedtime - soundtime;
- int avail;
- int missed;
- int state;
- int hw_ptr;
- int offset;
-
- state = snd_pcm_state (pcm);
-
- switch (state) {
- case SND_PCM_STATE_PREPARED:
- snd_pcm_mmap_forward (pcm, count);
- snd_pcm_start (pcm);
- break;
- case SND_PCM_STATE_RUNNING:
- hw_ptr = get_hw_ptr();
- missed = hw_ptr - shm->samplepos / shm->channels;
- if (missed < 0)
- missed += buffer_size;
- count -= missed;
- offset = snd_pcm_mmap_offset (pcm);
- if (offset > hw_ptr)
- count -= (offset - hw_ptr);
- else
- count -= (buffer_size - hw_ptr + offset);
- if (count < 0) {
- snd_pcm_rewind (pcm, -count);
- } else {
- avail = snd_pcm_avail_update(pcm);
- if (avail < 0)
- avail = buffer_size;
- if (count > avail)
- count = avail;
- snd_pcm_mmap_forward (pcm, count);
- }
- break;
- default:
- break;
- }
-}
-
-void *S_LockBuffer(void)
-{
- return shm->buffer;
-}
-
-void S_UnlockBuffer(void)
-{
-}
-
projects / xonotic / darkplaces.git / commitdiff