309 lines
6.2 KiB
C
309 lines
6.2 KiB
C
/*
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snd_jack.c
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JACK version of the renderer
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Copyright (C) 2007 Bill Currie <bill@taniwha.org>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program 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.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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static __attribute__ ((used)) const char rcsid[] =
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"$Id: snd_dma.c 11380 2007-03-10 14:17:52Z taniwha $";
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#include <stdlib.h>
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#include <jack/jack.h>
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#include "QF/cmd.h"
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#include "QF/cvar.h"
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#include "QF/hash.h"
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#include "QF/plugin.h"
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#include "QF/sound.h"
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#include "QF/sys.h"
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#include "QF/va.h"
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#include "snd_render.h"
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static int snd_blocked = 0;
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static int snd_shutdown = 0;
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static jack_client_t *jack_handle;
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static jack_port_t *jack_out[2];
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static dma_t _snd_shm;
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static float *output[2];
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static cvar_t *snd_jack_server;
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static void
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s_stop_all_sounds (void)
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{
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SND_StopAllSounds ();
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SND_ScanChannels (1);
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}
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static void
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s_start_sound (int entnum, int entchannel, sfx_t *sfx, const vec3_t origin,
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float fvol, float attenuation)
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{
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if (!snd_shutdown)
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SND_StartSound (entnum, entchannel, sfx, origin, fvol, attenuation);
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}
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static void
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s_update (const vec3_t origin, const vec3_t forward, const vec3_t right,
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const vec3_t up)
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{
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if (snd_shutdown) {
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if (snd_shutdown == 1) {
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snd_shutdown++;
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Sys_Printf ("Lost connection to jackd\n");
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}
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return;
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}
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SND_SetListener (origin, forward, right, up);
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}
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static void
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s_extra_update (void)
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{
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}
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static void
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s_local_sound (const char *sound)
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{
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if (!snd_shutdown)
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SND_LocalSound (sound);
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}
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static void
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s_jack_activate (void)
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{
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const char **ports;
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int i;
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if (jack_activate (jack_handle)) {
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Sys_Printf ("Could not activate JACK\n");
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return;
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}
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ports = jack_get_ports (jack_handle, 0, 0,
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JackPortIsPhysical | JackPortIsInput);
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//for (i = 0; ports[i]; i++)
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// Sys_Printf ("%s\n", ports[i]);
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for (i = 0; i < 2; i++)
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jack_connect (jack_handle, jack_port_name (jack_out[i]), ports[i]);
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free (ports);
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}
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static void
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s_block_sound (void)
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{
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if (++snd_blocked == 1) {
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//Sys_Printf ("jack_deactivate: %d\n", jack_deactivate (jack_handle));
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}
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}
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static void
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s_unblock_sound (void)
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{
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if (!snd_blocked)
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return;
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if (!--snd_blocked) {
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//s_jack_activate ();
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//Sys_Printf ("jack_activate\n");
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}
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}
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static channel_t *
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s_alloc_channel (void)
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{
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if (!snd_shutdown)
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return SND_AllocChannel ();
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return 0;
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}
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static void
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s_snd_force_unblock (void)
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{
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snd_blocked = 1;
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s_unblock_sound ();
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}
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static void
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snd_jack_xfer (int endtime)
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{
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int i;
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int count;
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float snd_vol = snd_volume->value;
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count = endtime - snd_paintedtime;
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if (snd_blocked) {
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for (i = 0; i < count; i++) {
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*output[0]++ = 0;
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*output[1]++ = 0;
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}
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return;
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}
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for (i = 0; i < count; i++) {
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/* max is +/- 1.0. need to implement clamping. */
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*output[0]++ = snd_vol * snd_paintbuffer[i].left;
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*output[1]++ = snd_vol * snd_paintbuffer[i].right;
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}
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}
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static int
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snd_jack_process (jack_nframes_t nframes, void *arg)
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{
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int i;
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for (i = 0; i < 2; i++)
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output[i] = (float *) jack_port_get_buffer (jack_out[i], nframes);
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SND_PaintChannels (snd_paintedtime + nframes);
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return 0;
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}
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static void
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snd_jack_shutdown (void *arg)
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{
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int i;
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channel_t *ch;
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snd_shutdown = 1;
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for (i = 0; i < MAX_CHANNELS; i++) {
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ch = &snd_channels[i];
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ch->done = ch->stop = 1;
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}
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}
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static void
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s_init (void)
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{
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int i;
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snd_shm = &_snd_shm;
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snd_shm->xfer = snd_jack_xfer;
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Cmd_AddCommand ("snd_force_unblock", s_snd_force_unblock,
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"fix permanently blocked sound");
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snd_volume = Cvar_Get ("volume", "0.7", CVAR_ARCHIVE, NULL,
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"Set the volume for sound playback");
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snd_jack_server = Cvar_Get ("snd_jack_server", "default", CVAR_ROM, NULL,
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"The name of the JACK server to connect to");
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SND_SFX_Init ();
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SND_Channels_Init ();
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if ((jack_handle = jack_client_open ("QuakeForge",
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JackServerName | JackNoStartServer, 0,
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snd_jack_server->string)) == 0) {
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Sys_Printf ("Could not connect to JACK\n");
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return;
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}
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jack_set_process_callback (jack_handle, snd_jack_process, 0);
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jack_on_shutdown (jack_handle, snd_jack_shutdown, 0);
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for (i = 0; i < 2; i++)
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jack_out[i] = jack_port_register (jack_handle, va ("out_%d", i + 1),
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JACK_DEFAULT_AUDIO_TYPE,
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JackPortIsOutput, 0);
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snd_shm->speed = jack_get_sample_rate (jack_handle);
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s_jack_activate ();
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Sys_Printf ("Connected to JACK: %d Sps\n", snd_shm->speed);
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}
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static void
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s_shutdown (void)
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{
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int i;
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if (jack_handle) {
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jack_deactivate (jack_handle);
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for (i = 0; i < 2; i++)
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jack_port_unregister (jack_handle, jack_out[i]);
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jack_client_close (jack_handle);
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}
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}
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static general_funcs_t plugin_info_general_funcs = {
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s_init,
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s_shutdown,
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};
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static snd_render_funcs_t plugin_info_render_funcs = {
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SND_AmbientOff,
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SND_AmbientOn,
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SND_StaticSound,
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s_start_sound,
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SND_StopSound,
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SND_PrecacheSound,
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s_update,
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s_stop_all_sounds,
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s_extra_update,
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s_local_sound,
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s_block_sound,
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s_unblock_sound,
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SND_LoadSound,
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s_alloc_channel,
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SND_ChannelStop,
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};
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static general_data_t plugin_info_general_data;
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static plugin_funcs_t plugin_info_funcs = {
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&plugin_info_general_funcs,
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0,
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0,
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0,
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0,
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&plugin_info_render_funcs,
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};
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static plugin_data_t plugin_info_data = {
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&plugin_info_general_data,
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0,
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0,
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0,
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0,
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&snd_render_data,
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};
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static plugin_t plugin_info = {
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qfp_snd_render,
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0,
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QFPLUGIN_VERSION,
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"0.1",
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"Sound Renderer",
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"Copyright (C) 2007 contributors of the QuakeForge "
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"project\n"
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"Please see the file \"AUTHORS\" for a list of contributors",
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&plugin_info_funcs,
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&plugin_info_data,
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};
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PLUGIN_INFO(snd_render, jack)
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{
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return &plugin_info;
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}
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