mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-23 21:02:50 +00:00
378 lines
9.1 KiB
C
378 lines
9.1 KiB
C
/*
|
|
snd_sgi.c
|
|
|
|
sound support for sgi
|
|
|
|
Copyright (C) 1996-1997 Id Software, Inc.
|
|
|
|
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
|
|
|
|
*/
|
|
static const char rcsid[] =
|
|
"$Id$";
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
|
|
#include <errno.h>
|
|
#include <limits.h>
|
|
#include <dmedia/audio.h>
|
|
|
|
#include "QF/plugin.h"
|
|
#include "QF/qargs.h"
|
|
#include "QF/qtypes.h"
|
|
#include "QF/sound.h"
|
|
#include "QF/sys.h"
|
|
|
|
static int snd_inited = 0;
|
|
static ALconfig alc;
|
|
static ALport alp;
|
|
|
|
static int tryrates[] = { 11025, 22050, 44100, 8000 };
|
|
|
|
static unsigned char *dma_buffer, *write_buffer;
|
|
static int bufsize;
|
|
static int wbufp;
|
|
static int framecount;
|
|
static volatile dma_t sn;
|
|
|
|
static plugin_t plugin_info;
|
|
static plugin_data_t plugin_info_data;
|
|
static plugin_funcs_t plugin_info_funcs;
|
|
static general_data_t plugin_info_general_data;
|
|
static general_funcs_t plugin_info_general_funcs;
|
|
static sound_data_t plugin_info_sound_data;
|
|
static sound_funcs_t plugin_info_sound_funcs;
|
|
|
|
|
|
static qboolean
|
|
SNDDMA_Init (void)
|
|
{
|
|
char *s;
|
|
int i;
|
|
ALpv alpv;
|
|
|
|
alc = alNewConfig ();
|
|
|
|
if (!alc) {
|
|
Sys_Printf ("Could not make an new sound config: %s\n",
|
|
alGetErrorString (oserror ()));
|
|
return 0;
|
|
}
|
|
|
|
shm = &sn;
|
|
shm->splitbuffer = 0;
|
|
|
|
/* get & probe settings */
|
|
/* sample format */
|
|
if (alSetSampFmt (alc, AL_SAMPFMT_TWOSCOMP) < 0) {
|
|
Sys_Printf ("Could not sample format of default output to two's "
|
|
"complement\n");
|
|
alFreeConfig (alc);
|
|
return 0;
|
|
}
|
|
|
|
/* sample bits */
|
|
s = getenv ("QUAKE_SOUND_SAMPLEBITS");
|
|
if (s)
|
|
shm->samplebits = atoi (s);
|
|
else if ((i = COM_CheckParm ("-sndbits")) != 0)
|
|
shm->samplebits = atoi (com_argv[i + 1]);
|
|
|
|
if (shm->samplebits != 16 && shm->samplebits != 8) {
|
|
alpv.param = AL_WORDSIZE;
|
|
|
|
if (alGetParams (AL_DEFAULT_OUTPUT, &alpv, 1) < 0) {
|
|
Sys_Printf ("Could not get supported wordsize of default "
|
|
"output: %s\n", alGetErrorString (oserror ()));
|
|
return 0;
|
|
}
|
|
|
|
if (alpv.value.i >= 16) {
|
|
shm->samplebits = 16;
|
|
} else {
|
|
if (alpv.value.i >= 8)
|
|
shm->samplebits = 8;
|
|
else {
|
|
Sys_Printf ("Sound disabled since interface "
|
|
"doesn't even support 8 bit.");
|
|
alFreeConfig (alc);
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* sample rate */
|
|
s = getenv ("QUAKE_SOUND_SPEED");
|
|
if (s)
|
|
shm->speed = atoi (s);
|
|
else if ((i = COM_CheckParm ("-sndspeed")) != 0)
|
|
shm->speed = atoi (com_argv[i + 1]);
|
|
else {
|
|
alpv.param = AL_RATE;
|
|
|
|
for (i = 0; i < sizeof (tryrates) / sizeof (int); i++) {
|
|
alpv.value.ll = alDoubleToFixed (tryrates[i]);
|
|
|
|
if (alSetParams (AL_DEFAULT_OUTPUT, &alpv, 1) >= 0)
|
|
break;
|
|
}
|
|
|
|
if (i >= sizeof (tryrates) / sizeof (int)) {
|
|
Sys_Printf ("Sound disabled since interface doesn't even "
|
|
"support a sample rate of %d\n", tryrates[i - 1]);
|
|
alFreeConfig (alc);
|
|
return 0;
|
|
}
|
|
|
|
shm->speed = tryrates[i];
|
|
}
|
|
|
|
/* channels */
|
|
s = getenv ("QUAKE_SOUND_CHANNELS");
|
|
if (s)
|
|
shm->channels = atoi (s);
|
|
else if ((i = COM_CheckParm ("-sndmono")) != 0)
|
|
shm->channels = 1;
|
|
else if ((i = COM_CheckParm ("-sndstereo")) != 0)
|
|
shm->channels = 2;
|
|
else
|
|
shm->channels = 2;
|
|
|
|
/* set 'em */
|
|
|
|
/* channels */
|
|
while (shm->channels > 0) {
|
|
if (alSetChannels (alc, shm->channels) < 0) {
|
|
Sys_Printf ("Unable to set number of channels to %d, "
|
|
"trying half\n", shm->channels);
|
|
shm->channels /= 2;
|
|
} else
|
|
break;
|
|
}
|
|
|
|
if (shm->channels <= 0) {
|
|
Sys_Printf ("Sound disabled since interface doesn't even support 1 "
|
|
"channel\n");
|
|
alFreeConfig (alc);
|
|
return 0;
|
|
}
|
|
|
|
/* sample rate */
|
|
alpv.param = AL_RATE;
|
|
alpv.value.ll = alDoubleToFixed (shm->speed);
|
|
|
|
if (alSetParams (AL_DEFAULT_OUTPUT, &alpv, 1) < 0) {
|
|
Sys_Printf ("Could not set samplerate of default output to %d: %s\n",
|
|
shm->speed, alGetErrorString (oserror ()));
|
|
alFreeConfig (alc);
|
|
return 0;
|
|
}
|
|
|
|
/* set sizes of buffers relative to sizes of those for the 'standard'
|
|
frequency of 11025 use *huge* buffers since at least my indigo2
|
|
has enough to do to get sound on the way anyway
|
|
*/
|
|
bufsize = 32768 * (int) ((double) shm->speed / 11025.0);
|
|
|
|
dma_buffer = malloc (bufsize);
|
|
|
|
if (dma_buffer == NULL) {
|
|
Sys_Printf ("Could not get %d bytes of memory for audio dma buffer\n",
|
|
bufsize);
|
|
alFreeConfig (alc);
|
|
return 0;
|
|
}
|
|
|
|
write_buffer = malloc (bufsize);
|
|
|
|
if (write_buffer == NULL) {
|
|
Sys_Printf ("Could not get %d bytes of memory for audio write "
|
|
"buffer\n", bufsize);
|
|
free (dma_buffer);
|
|
alFreeConfig (alc);
|
|
return 0;
|
|
}
|
|
|
|
/* sample bits */
|
|
switch (shm->samplebits) {
|
|
case 24:
|
|
i = AL_SAMPLE_24;
|
|
break;
|
|
|
|
case 16:
|
|
i = AL_SAMPLE_16;
|
|
break;
|
|
|
|
default:
|
|
i = AL_SAMPLE_8;
|
|
break;
|
|
}
|
|
|
|
if (alSetWidth (alc, i) < 0) {
|
|
Sys_Printf ("Could not set wordsize of default output to %d: %s\n",
|
|
shm->samplebits, alGetErrorString (oserror ()));
|
|
free (write_buffer);
|
|
free (dma_buffer);
|
|
alFreeConfig (alc);
|
|
return 0;
|
|
}
|
|
|
|
alp = alOpenPort ("quakeforge", "w", alc);
|
|
|
|
if (!alp) {
|
|
Sys_Printf ("Could not open sound port: %s\n",
|
|
alGetErrorString (oserror ()));
|
|
free (write_buffer);
|
|
free (dma_buffer);
|
|
alFreeConfig (alc);
|
|
return 0;
|
|
}
|
|
|
|
shm->soundalive = true;
|
|
shm->samples = bufsize / (shm->samplebits / 8);
|
|
shm->samplepos = 0;
|
|
shm->submission_chunk = 1;
|
|
shm->buffer = dma_buffer;
|
|
|
|
framecount = 0;
|
|
|
|
snd_inited = 1;
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
SNDDMA_GetDMAPos (void)
|
|
{
|
|
/* Sys_Printf("framecount: %d %d\n", (framecount * shm->channels) %
|
|
shm->samples, alGetFilled(alp)); */
|
|
shm->samplepos = ((framecount - alGetFilled (alp))
|
|
* shm->channels) % shm->samples;
|
|
return shm->samplepos;
|
|
}
|
|
|
|
static void
|
|
SNDDMA_Shutdown (void)
|
|
{
|
|
if (snd_inited) {
|
|
free (write_buffer);
|
|
free (dma_buffer);
|
|
alClosePort (alp);
|
|
alFreeConfig (alc);
|
|
snd_inited = 0;
|
|
}
|
|
}
|
|
|
|
/*
|
|
SNDDMA_Submit
|
|
|
|
Send sound to device if buffer isn't really the dma buffer
|
|
*/
|
|
static void
|
|
SNDDMA_Submit (void)
|
|
{
|
|
unsigned char *p;
|
|
int bsize, bytes, idx, b;
|
|
int stop = *plugin_info_snd_output_data.paintedtime;
|
|
|
|
if (snd_blocked)
|
|
return;
|
|
|
|
if (*plugin_info_snd_output_data.paintedtime < wbufp)
|
|
wbufp = 0; // reset
|
|
|
|
bsize = shm->channels * (shm->samplebits / 8);
|
|
bytes = (*plugin_info_snd_output_data.paintedtime - wbufp) * bsize;
|
|
|
|
if (!bytes)
|
|
return;
|
|
|
|
if (bytes > bufsize) {
|
|
bytes = bufsize;
|
|
stop = wbufp + bytes / bsize;
|
|
}
|
|
|
|
p = write_buffer;
|
|
idx = (wbufp * bsize) & (bufsize - 1);
|
|
|
|
for (b = bytes; b; b--) {
|
|
*p++ = dma_buffer[idx];
|
|
idx = (idx + 1) & (bufsize - 1);
|
|
}
|
|
|
|
wbufp = stop;
|
|
|
|
alWriteFrames (alp, write_buffer, bytes / bsize);
|
|
framecount += bytes / bsize;
|
|
}
|
|
|
|
static void
|
|
SNDDMA_BlockSound (void)
|
|
{
|
|
}
|
|
|
|
static void
|
|
SNDDMA_UnblockSound (void)
|
|
{
|
|
}
|
|
|
|
QFPLUGIN plugin_t *
|
|
snd_output_sgi_PluginInfo (void) {
|
|
plugin_info.type = qfp_sound;
|
|
plugin_info.api_version = QFPLUGIN_VERSION;
|
|
plugin_info.plugin_version = "0.1";
|
|
plugin_info.description = "SGI digital output";
|
|
plugin_info.copyright = "Copyright (C) 1996-1997 id Software, Inc.\n"
|
|
"Copyright (C) 1999,2000,2001 contributors of the QuakeForge "
|
|
"project\n"
|
|
"Please see the file \"AUTHORS\" for a list of contributors";
|
|
plugin_info.functions = &plugin_info_funcs;
|
|
plugin_info.data = &plugin_info_data;
|
|
|
|
plugin_info_data.general = &plugin_info_general_data;
|
|
plugin_info_data.input = NULL;
|
|
plugin_info_data.sound = &plugin_info_sound_data;
|
|
|
|
plugin_info_funcs.general = &plugin_info_general_funcs;
|
|
plugin_info_funcs.input = NULL;
|
|
plugin_info_funcs.sound = &plugin_info_sound_funcs;
|
|
|
|
plugin_info_general_funcs.p_Init = SND_Init;
|
|
plugin_info_general_funcs.p_Shutdown = SND_Shutdown;
|
|
|
|
plugin_info_sound_funcs.pS_AmbientOff = SND_AmbientOff;
|
|
plugin_info_sound_funcs.pS_AmbientOn = SND_AmbientOn;
|
|
plugin_info_sound_funcs.pS_TouchSound = SND_TouchSound;
|
|
plugin_info_sound_funcs.pS_ClearBuffer = SND_ClearBuffer;
|
|
plugin_info_sound_funcs.pS_StaticSound = SND_StaticSound;
|
|
plugin_info_sound_funcs.pS_StartSound = SND_StartSound;
|
|
plugin_info_sound_funcs.pS_StopSound = SND_StopSound;
|
|
plugin_info_sound_funcs.pS_PrecacheSound = SND_PrecacheSound;
|
|
plugin_info_sound_funcs.pS_ClearPrecache = SND_ClearPrecache;
|
|
plugin_info_sound_funcs.pS_Update = SND_Update;
|
|
plugin_info_sound_funcs.pS_StopAllSounds = SND_StopAllSounds;
|
|
plugin_info_sound_funcs.pS_BeginPrecaching = SND_BeginPrecaching;
|
|
plugin_info_sound_funcs.pS_EndPrecaching = SND_EndPrecaching;
|
|
plugin_info_sound_funcs.pS_ExtraUpdate = SND_ExtraUpdate;
|
|
plugin_info_sound_funcs.pS_LocalSound = SND_LocalSound;
|
|
plugin_info_sound_funcs.pS_BlockSound = SND_BlockSound;
|
|
plugin_info_sound_funcs.pS_UnblockSound = SND_UnblockSound;
|
|
|
|
return &plugin_info;
|
|
}
|