mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-12-11 21:31:30 +00:00
fc09d2b00f
implementation of his sound/focus patch. NOTE: only alsa 0.9 is tested (Rhamph, can you test 0.5, please?) and only the alsa drivers stop the hardware right ow. WARNING!!! you /will/ have to re-install your plugins, or you will get segfaults when the window gains/loses focus. How do you tell if a window has focus on first mapping in X11?
293 lines
6.9 KiB
C
293 lines
6.9 KiB
C
/*
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snd_sun.c
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(description)
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Copyright (C) 1996-1997 Id Software, Inc.
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Copyright (C) 1999,2000 contributors of the QuakeForge project
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Please see the file "AUTHORS" for a list of contributors
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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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$Id$
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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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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#include <fcntl.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <sys/mman.h>
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#include <sys/shm.h>
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#include <sys/wait.h>
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#include <stdio.h>
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#include <sys/audioio.h>
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#include <errno.h>
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#include "QF/console.h"
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#include "QF/qtypes.h"
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#include "QF/qargs.h"
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#include "QF/sound.h"
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#include "QF/plugin.h"
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int audio_fd;
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int snd_inited;
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static int wbufp;
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static audio_info_t info;
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#define BUFFER_SIZE 8192
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unsigned char dma_buffer[BUFFER_SIZE];
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unsigned char pend_buffer[BUFFER_SIZE];
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int pending;
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plugin_t plugin_info;
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plugin_data_t plugin_info_data;
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plugin_funcs_t plugin_info_funcs;
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general_data_t plugin_info_general_data;
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general_funcs_t plugin_info_general_funcs;
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sound_data_t plugin_info_sound_data;
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sound_funcs_t plugin_info_sound_funcs;
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qboolean
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SNDDMA_Init (void)
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{
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if (snd_inited) {
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printf ("Sound already init'd\n");
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return 0;
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}
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shm = &sn;
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shm->splitbuffer = 0;
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audio_fd = open ("/dev/audio", O_WRONLY | O_NDELAY);
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if (audio_fd < 0) {
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if (errno == EBUSY) {
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Con_Printf ("Audio device is being used by another process\n");
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}
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perror ("/dev/audio");
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Con_Printf ("Could not open /dev/audio\n");
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return (0);
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}
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if (ioctl (audio_fd, AUDIO_GETINFO, &info) < 0) {
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perror ("/dev/audio");
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Con_Printf ("Could not communicate with audio device.\n");
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close (audio_fd);
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return 0;
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}
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//
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// set to nonblock
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//
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if (fcntl (audio_fd, F_SETFL, O_NONBLOCK) < 0) {
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perror ("/dev/audio");
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close (audio_fd);
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return 0;
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}
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AUDIO_INITINFO (&info);
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shm->speed = 11025;
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// try 16 bit stereo
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info.play.encoding = AUDIO_ENCODING_LINEAR;
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info.play.sample_rate = 11025;
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info.play.channels = 2;
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info.play.precision = 16;
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if (ioctl (audio_fd, AUDIO_SETINFO, &info) < 0) {
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info.play.encoding = AUDIO_ENCODING_LINEAR;
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info.play.sample_rate = 11025;
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info.play.channels = 1;
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info.play.precision = 16;
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if (ioctl (audio_fd, AUDIO_SETINFO, &info) < 0) {
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Con_Printf ("Incapable sound hardware.\n");
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close (audio_fd);
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return 0;
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}
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Con_Printf ("16 bit mono sound initialized\n");
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shm->samplebits = 16;
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shm->channels = 1;
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} else { // 16 bit stereo
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Con_Printf ("16 bit stereo sound initialized\n");
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shm->samplebits = 16;
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shm->channels = 2;
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}
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shm->soundalive = true;
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shm->samples = sizeof (dma_buffer) / (shm->samplebits / 8);
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shm->samplepos = 0;
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shm->submission_chunk = 1;
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shm->buffer = (unsigned char *) dma_buffer;
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snd_inited = 1;
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return 1;
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}
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int
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SNDDMA_GetDMAPos (void)
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{
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if (!snd_inited)
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return (0);
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if (ioctl (audio_fd, AUDIO_GETINFO, &info) < 0) {
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perror ("/dev/audio");
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Con_Printf ("Could not communicate with audio device.\n");
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close (audio_fd);
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snd_inited = 0;
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return (0);
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}
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return ((info.play.samples * shm->channels) % shm->samples);
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}
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int
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SNDDMA_GetSamples (void)
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{
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if (!snd_inited)
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return (0);
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if (ioctl (audio_fd, AUDIO_GETINFO, &info) < 0) {
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perror ("/dev/audio");
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Con_Printf ("Could not communicate with audio device.\n");
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close (audio_fd);
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snd_inited = 0;
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return (0);
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}
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return info.play.samples;
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}
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void
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SNDDMA_Shutdown (void)
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{
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if (snd_inited) {
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close (audio_fd);
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snd_inited = 0;
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}
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}
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/*
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SNDDMA_Submit
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Send sound to device if buffer isn't really the dma buffer
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*/
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void
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SNDDMA_Submit (void)
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{
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int bsize;
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int bytes, b;
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static unsigned char writebuf[1024];
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unsigned char *p;
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int idx;
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int stop = paintedtime;
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if (snd_blocked)
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return;
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if (paintedtime < wbufp)
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wbufp = 0; // reset
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bsize = shm->channels * (shm->samplebits / 8);
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bytes = (paintedtime - wbufp) * bsize;
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if (!bytes)
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return;
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if (bytes > sizeof (writebuf)) {
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bytes = sizeof (writebuf);
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stop = wbufp + bytes / bsize;
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}
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p = writebuf;
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idx = (wbufp * bsize) & (BUFFER_SIZE - 1);
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for (b = bytes; b; b--) {
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*p++ = dma_buffer[idx];
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idx = (idx + 1) & (BUFFER_SIZE - 1);
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}
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wbufp = stop;
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if (write (audio_fd, writebuf, bytes) < bytes)
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printf ("audio can't keep up!\n");
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}
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plugin_t *
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PluginInfo (void) {
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plugin_info.type = qfp_sound;
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plugin_info.api_version = QFPLUGIN_VERSION;
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plugin_info.plugin_version = "0.1";
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plugin_info.description = "SUN digital output";
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plugin_info.copyright = "Copyright (C) 1996-1997 id Software, Inc.\n"
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"Copyright (C) 1999,2000,2001 contributors of the QuakeForge project\n" "Please see the file \"AUTHORS\" for a list of contributors";
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plugin_info.functions = &plugin_info_funcs;
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plugin_info.data = &plugin_info_data;
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plugin_info_data.general = &plugin_info_general_data;
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plugin_info_data.input = NULL;
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plugin_info_data.sound = &plugin_info_sound_data;
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plugin_info_funcs.general = &plugin_info_general_funcs;
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plugin_info_funcs.input = NULL;
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plugin_info_funcs.sound = &plugin_info_sound_funcs;
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plugin_info_general_funcs.p_Init = SND_Init;
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plugin_info_general_funcs.p_Shutdown = SND_Shutdown;
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plugin_info_sound_funcs.pS_AmbientOff = SND_AmbientOff;
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plugin_info_sound_funcs.pS_AmbientOn = SND_AmbientOn;
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plugin_info_sound_funcs.pS_TouchSound = SND_TouchSound;
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plugin_info_sound_funcs.pS_ClearBuffer = SND_ClearBuffer;
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plugin_info_sound_funcs.pS_StaticSound = SND_StaticSound;
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plugin_info_sound_funcs.pS_StartSound = SND_StartSound;
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plugin_info_sound_funcs.pS_StopSound = SND_StopSound;
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plugin_info_sound_funcs.pS_PrecacheSound = SND_PrecacheSound;
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plugin_info_sound_funcs.pS_ClearPrecache = SND_ClearPrecache;
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plugin_info_sound_funcs.pS_Update = SND_Update;
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plugin_info_sound_funcs.pS_StopAllSounds = SND_StopAllSounds;
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plugin_info_sound_funcs.pS_BeginPrecaching = SND_BeginPrecaching;
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plugin_info_sound_funcs.pS_EndPrecaching = SND_EndPrecaching;
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plugin_info_sound_funcs.pS_ExtraUpdate = SND_ExtraUpdate;
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plugin_info_sound_funcs.pS_LocalSound = SND_LocalSound;
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plugin_info_sound_funcs.pS_BlockSound = SND_BlockSound;
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plugin_info_sound_funcs.pS_UnblockSound = SND_UnblockSound;
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return &plugin_info;
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}
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void
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SNDDMA_BlockSound (void)
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{
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}
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void
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SNDDMA_UnblockSound (void)
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{
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}
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