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Diffstat (limited to 'src/snd_oss.c')
-rw-r--r--src/snd_oss.c170
1 files changed, 87 insertions, 83 deletions
diff --git a/src/snd_oss.c b/src/snd_oss.c
index d62030f..ec9f08f 100644
--- a/src/snd_oss.c
+++ b/src/snd_oss.c
@@ -1,21 +1,21 @@
/*
Copyright (C) 1997-2001 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 the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
+
*/
#include <unistd.h>
#include <fcntl.h>
@@ -45,41 +45,41 @@ static cvar_t *s_device;
static const int tryrates[] = { 22050, 11025, 44100, 48000, 8000 };
-static sndinitstat_t OSS_Init ( void ) {
+static sndinitstat_t OSS_Init(void)
+{
int rc;
int fmt;
int tmp;
int i;
int caps;
- if ( snd_inited )
+ if (snd_inited)
return SIS_SUCCESS;
- s_bits = Cvar_Get ( "s_bits", "16", CVAR_SOUND );
- s_channels = Cvar_Get ( "s_channels", "2", CVAR_SOUND );
- s_device = Cvar_Get ( "s_device", "/dev/dsp", CVAR_SOUND );
+ s_bits = Cvar_Get("s_bits", "16", CVAR_SOUND);
+ s_channels = Cvar_Get("s_channels", "2", CVAR_SOUND);
+ s_device = Cvar_Get("s_device", "/dev/dsp", CVAR_SOUND);
// open /dev/dsp, confirm capability to mmap, and get size of dma buffer
- audio_fd = open ( s_device->string, O_RDWR );
+ audio_fd = open(s_device->string, O_RDWR);
- if ( audio_fd < 0 ) {
- Com_WPrintf ( "Could not open %s: %s\n", s_device->string,
- strerror ( errno ) );
+ if (audio_fd < 0) {
+ Com_WPrintf("Could not open %s: %s\n", s_device->string,
+ strerror(errno));
return SIS_FAILURE;
}
- if ( ioctl ( audio_fd, SNDCTL_DSP_GETCAPS, &caps ) == -1 ) {
- Com_WPrintf ( "Could not get caps of %s: %s\n", s_device->string,
- strerror ( errno ) );
+ if (ioctl(audio_fd, SNDCTL_DSP_GETCAPS, &caps) == -1) {
+ Com_WPrintf("Could not get caps of %s: %s\n", s_device->string,
+ strerror(errno));
goto fail;
}
- if( ( caps & (DSP_CAP_TRIGGER|DSP_CAP_MMAP) ) !=
- (DSP_CAP_TRIGGER|DSP_CAP_MMAP) )
- {
- Com_WPrintf ( "%s does not support TRIGGER and/or MMAP capabilities\n",
- s_device->string );
+ if ((caps & (DSP_CAP_TRIGGER | DSP_CAP_MMAP)) !=
+ (DSP_CAP_TRIGGER | DSP_CAP_MMAP)) {
+ Com_WPrintf("%s does not support TRIGGER and/or MMAP capabilities\n",
+ s_device->string);
goto fail;
}
@@ -87,16 +87,16 @@ static sndinitstat_t OSS_Init ( void ) {
// set sample bits & speed
dma.samplebits = s_bits->integer;
- if ( dma.samplebits != 16 && dma.samplebits != 8 ) {
- ioctl ( audio_fd, SNDCTL_DSP_GETFMTS, &fmt );
- if ( fmt & AFMT_S16_LE ) {
+ if (dma.samplebits != 16 && dma.samplebits != 8) {
+ ioctl(audio_fd, SNDCTL_DSP_GETFMTS, &fmt);
+ if (fmt & AFMT_S16_LE) {
dma.samplebits = 16;
- } else if ( fmt & AFMT_U8 ) {
+ } else if (fmt & AFMT_U8) {
dma.samplebits = 8;
}
}
- switch( s_khz->integer ) {
+ switch (s_khz->integer) {
case 48:
dma.speed = 48000;
break;
@@ -110,12 +110,12 @@ static sndinitstat_t OSS_Init ( void ) {
dma.speed = 11025;
break;
default:
- for ( i = 0; i < sizeof ( tryrates ) / 4; i++ ) {
- if ( !ioctl ( audio_fd, SNDCTL_DSP_SPEED, &tryrates[i] ) )
+ for (i = 0; i < sizeof(tryrates) / 4; i++) {
+ if (!ioctl(audio_fd, SNDCTL_DSP_SPEED, &tryrates[i]))
break;
}
- if ( i == sizeof ( tryrates ) / 4 ) {
- Com_WPrintf ( "%s supports no valid bitrates\n", s_device->string );
+ if (i == sizeof(tryrates) / 4) {
+ Com_WPrintf("%s supports no valid bitrates\n", s_device->string);
goto fail;
}
dma.speed = tryrates[i];
@@ -125,82 +125,82 @@ static sndinitstat_t OSS_Init ( void ) {
dma.channels = s_channels->integer;
tmp = 0;
- if ( dma.channels == 2 )
+ if (dma.channels == 2)
tmp = 1;
- rc = ioctl ( audio_fd, SNDCTL_DSP_STEREO, &tmp );
- if ( rc < 0 ) {
- Com_WPrintf ( "Could not set %s to %d channels: %s\n", s_device->string,
- dma.channels, strerror ( errno ) );
+ rc = ioctl(audio_fd, SNDCTL_DSP_STEREO, &tmp);
+ if (rc < 0) {
+ Com_WPrintf("Could not set %s to %d channels: %s\n", s_device->string,
+ dma.channels, strerror(errno));
goto fail;
}
- if ( tmp )
+ if (tmp)
dma.channels = 2;
else
dma.channels = 1;
- rc = ioctl ( audio_fd, SNDCTL_DSP_SPEED, &dma.speed );
- if ( rc < 0 ) {
- Com_WPrintf ( "Could not set %s speed to %d: %s\n", s_device->string,
- dma.speed, strerror ( errno ) );
+ rc = ioctl(audio_fd, SNDCTL_DSP_SPEED, &dma.speed);
+ if (rc < 0) {
+ Com_WPrintf("Could not set %s speed to %d: %s\n", s_device->string,
+ dma.speed, strerror(errno));
goto fail;
}
- if ( dma.samplebits == 16 ) {
+ if (dma.samplebits == 16) {
rc = AFMT_S16_LE;
- rc = ioctl ( audio_fd, SNDCTL_DSP_SETFMT, &rc );
- if ( rc < 0 ) {
- Com_WPrintf ( "Could not support 16-bit data. Try 8-bit.\n" );
+ rc = ioctl(audio_fd, SNDCTL_DSP_SETFMT, &rc);
+ if (rc < 0) {
+ Com_WPrintf("Could not support 16-bit data. Try 8-bit.\n");
goto fail;
}
- } else if ( dma.samplebits == 8 ) {
+ } else if (dma.samplebits == 8) {
rc = AFMT_U8;
- rc = ioctl ( audio_fd, SNDCTL_DSP_SETFMT, &rc );
- if ( rc < 0 ) {
- Com_WPrintf ( "Could not support 8-bit data.\n" );
+ rc = ioctl(audio_fd, SNDCTL_DSP_SETFMT, &rc);
+ if (rc < 0) {
+ Com_WPrintf("Could not support 8-bit data.\n");
goto fail;
}
} else {
- Com_WPrintf ( "%d-bit sound not supported.\n", dma.samplebits );
+ Com_WPrintf("%d-bit sound not supported.\n", dma.samplebits);
goto fail;
}
- if ( ioctl ( audio_fd, SNDCTL_DSP_GETOSPACE, &info ) ==-1 ) {
- Com_WPrintf ( "Could not do GETOSPACE: %s\n", strerror ( errno ) );
+ if (ioctl(audio_fd, SNDCTL_DSP_GETOSPACE, &info) == -1) {
+ Com_WPrintf("Could not do GETOSPACE: %s\n", strerror(errno));
goto fail;
}
- dma.samples = info.fragstotal * info.fragsize / ( dma.samplebits >> 3 );
+ dma.samples = info.fragstotal * info.fragsize / (dma.samplebits >> 3);
dma.submission_chunk = 1;
// memory map the dma buffer
- dma.buffer = ( byte * ) mmap ( NULL, info.fragstotal * info.fragsize,
- PROT_WRITE, MAP_FILE|MAP_SHARED, audio_fd, 0 );
- if ( !dma.buffer ) {
- Com_WPrintf ( "Could not mmap %s: %s\n", s_device->string,
- strerror ( errno ) );
+ dma.buffer = (byte *) mmap(NULL, info.fragstotal * info.fragsize,
+ PROT_WRITE, MAP_FILE | MAP_SHARED, audio_fd, 0);
+ if (!dma.buffer) {
+ Com_WPrintf("Could not mmap %s: %s\n", s_device->string,
+ strerror(errno));
goto fail;
}
// toggle the trigger & start her up
tmp = 0;
- rc = ioctl ( audio_fd, SNDCTL_DSP_SETTRIGGER, &tmp );
- if ( rc < 0 ) {
- Com_WPrintf ( "Could not toggle (0): %s\n", strerror ( errno ) );
- munmap ( dma.buffer, info.fragstotal * info.fragsize );
+ rc = ioctl(audio_fd, SNDCTL_DSP_SETTRIGGER, &tmp);
+ if (rc < 0) {
+ Com_WPrintf("Could not toggle (0): %s\n", strerror(errno));
+ munmap(dma.buffer, info.fragstotal * info.fragsize);
goto fail;
}
tmp = PCM_ENABLE_OUTPUT;
- rc = ioctl ( audio_fd, SNDCTL_DSP_SETTRIGGER, &tmp );
- if ( rc < 0 ) {
- Com_WPrintf ( "Could not toggle (PCM_ENABLE_OUTPUT): %s\n",
- strerror ( errno ) );
- munmap ( dma.buffer, info.fragstotal * info.fragsize );
+ rc = ioctl(audio_fd, SNDCTL_DSP_SETTRIGGER, &tmp);
+ if (rc < 0) {
+ Com_WPrintf("Could not toggle (PCM_ENABLE_OUTPUT): %s\n",
+ strerror(errno));
+ munmap(dma.buffer, info.fragstotal * info.fragsize);
goto fail;
}
- Com_Printf ( "OSS initialization succeeded\n" );
+ Com_Printf("OSS initialization succeeded\n");
dma.samplepos = 0;
@@ -208,39 +208,43 @@ static sndinitstat_t OSS_Init ( void ) {
return SIS_SUCCESS;
fail:
- close ( audio_fd );
+ close(audio_fd);
return SIS_FAILURE;
}
-static void OSS_Shutdown ( void ) {
- if ( snd_inited ) {
- Com_Printf ( "Shutting down OSS\n" );
- ioctl ( audio_fd, SNDCTL_DSP_RESET );
- munmap ( dma.buffer, info.fragstotal * info.fragsize );
- close ( audio_fd );
+static void OSS_Shutdown(void)
+{
+ if (snd_inited) {
+ Com_Printf("Shutting down OSS\n");
+ ioctl(audio_fd, SNDCTL_DSP_RESET);
+ munmap(dma.buffer, info.fragstotal * info.fragsize);
+ close(audio_fd);
snd_inited = qfalse;
}
}
-static void OSS_BeginPainting ( void ) {
+static void OSS_BeginPainting(void)
+{
struct count_info count;
- if ( !snd_inited )
+ if (!snd_inited)
return;
- if ( ioctl ( audio_fd, SNDCTL_DSP_GETOPTR, &count ) == -1 ) {
- Com_EPrintf ( "SNDCTL_DSP_GETOPTR failed on %s: %s\n",
- s_device->string, strerror ( errno ) );
+ if (ioctl(audio_fd, SNDCTL_DSP_GETOPTR, &count) == -1) {
+ Com_EPrintf("SNDCTL_DSP_GETOPTR failed on %s: %s\n",
+ s_device->string, strerror(errno));
OSS_Shutdown();
return;
}
- dma.samplepos = count.ptr / ( dma.samplebits >> 3 );
+ dma.samplepos = count.ptr / (dma.samplebits >> 3);
}
-static void OSS_Submit ( void ) {
+static void OSS_Submit(void)
+{
}
-void DS_FillAPI ( snddmaAPI_t *api ) {
+void DS_FillAPI(snddmaAPI_t *api)
+{
api->Init = OSS_Init;
api->Shutdown = OSS_Shutdown;
api->BeginPainting = OSS_BeginPainting;
generated by cgit v1.2.3 (git 2.46.0) at 2025-08-03 07:29:18 +0000