/*
===============
SNDDMA_Init
===============
*/
qboolean SNDDMA_Init(void)
{
SDL_AudioSpec desired;
SDL_AudioSpec obtained;
int tmp;
if (snd_inited)
return qtrue;
if (!s_sdlBits) {
s_sdlBits = Cvar_Get("s_sdlBits", "16", CVAR_ARCHIVE);
s_sdlSpeed = Cvar_Get("s_sdlSpeed", "44100", CVAR_ARCHIVE);
s_sdlChannels = Cvar_Get("s_sdlChannels", "2", CVAR_ARCHIVE);
s_sdlDevSamps = Cvar_Get("s_sdlDevSamps", "0", CVAR_ARCHIVE);
s_sdlMixSamps = Cvar_Get("s_sdlMixSamps", "0", CVAR_ARCHIVE);
}
Com_Printf( "SDL_Init( SDL_INIT_AUDIO )... " );
if (!SDL_WasInit(SDL_INIT_AUDIO))
{
if (SDL_Init(SDL_INIT_AUDIO) == -1)
{
Com_Printf( "FAILED (%s)\n", SDL_GetError( ) );
return qfalse;
}
}
Com_Printf( "OK\n" );
Com_Printf( "SDL audio driver is \"%s\".\n", SDL_GetCurrentAudioDriver( ) );
memset(&desired, '\0', sizeof (desired));
memset(&obtained, '\0', sizeof (obtained));
tmp = ((int) s_sdlBits->value);
if ((tmp != 16) && (tmp != 8))
tmp = 16;
desired.freq = (int) s_sdlSpeed->value;
if(!desired.freq) desired.freq = 44100;
desired.format = ((tmp == 16) ? AUDIO_S16SYS : AUDIO_U8);
// I dunno if this is the best idea, but I'll give it a try...
// should probably check a cvar for this...
if (s_sdlDevSamps->value)
desired.samples = s_sdlDevSamps->value;
else
{
// just pick a sane default.
if (desired.freq <= 11025)
desired.samples = 256;
else if (desired.freq <= 22050)
desired.samples = 512;
else if (desired.freq <= 44100)
desired.samples = 1024;
else
desired.samples = 2048; // (*shrug*)
}
desired.channels = (int) s_sdlChannels->value;
desired.callback = SNDDMA_AudioCallback;
if (SDL_OpenAudio(&desired, &obtained) == -1)
{
Com_Printf("SDL_OpenAudio() failed: %s\n", SDL_GetError());
SDL_QuitSubSystem(SDL_INIT_AUDIO);
return qfalse;
}
SNDDMA_PrintAudiospec("SDL_AudioSpec", &obtained);
// dma.samples needs to be big, or id's mixer will just refuse to
// work at all; we need to keep it significantly bigger than the
// amount of SDL callback samples, and just copy a little each time
// the callback runs.
// 32768 is what the OSS driver filled in here on my system. I don't
// know if it's a good value overall, but at least we know it's
// reasonable...this is why I let the user override.
tmp = s_sdlMixSamps->value;
if (!tmp)
tmp = (obtained.samples * obtained.channels) * 10;
if (tmp & (tmp - 1)) // not a power of two? Seems to confuse something.
{
int val = 1;
while (val < tmp)
val <<= 1;
tmp = val;
}
dmapos = 0;
dma.samplebits = obtained.format & 0xFF; // first byte of format is bits.
dma.channels = obtained.channels;
dma.samples = tmp;
dma.submission_chunk = 1;
dma.speed = obtained.freq;
dmasize = (dma.samples * (dma.samplebits/8));
dma.buffer = (byte *)calloc(1, dmasize);
Com_Printf("Starting SDL audio callback...\n");
SDL_PauseAudio(0); // start callback.
Com_Printf("SDL audio initialized.\n");
snd_inited = qtrue;
return qtrue;
}
/*
===============
SNDDMA_Init
===============
*/
qboolean SNDDMA_Init(void)
{
SDL_AudioSpec desired;
SDL_AudioSpec obtained;
const char *driver_name;
int tmp;
if (snd_inited)
{
return qtrue;
}
// before rc 2 we have had own s_sdl_ cvars to set this
// changed back to use genuine cvar names
// - it's more compatible when existing profiles are used
// - we don't have to touch menu & ui to make speed/khz work (uses s_khz!)
s_bits = Cvar_Get("s_bits", "16", CVAR_LATCH | CVAR_ARCHIVE);
s_khz = Cvar_Get("s_khz", "44", CVAR_LATCH | CVAR_ARCHIVE);
s_sdlChannels = Cvar_Get("s_channels", "2", CVAR_LATCH | CVAR_ARCHIVE);
s_sdlDevSamps = Cvar_Get("s_sdlDevSamps", "0", CVAR_LATCH | CVAR_ARCHIVE);
s_sdlMixSamps = Cvar_Get("s_sdlMixSamps", "0", CVAR_LATCH | CVAR_ARCHIVE);
Com_Printf("SDL_Init( SDL_INIT_AUDIO )... ");
if (!SDL_WasInit(SDL_INIT_AUDIO))
{
if (LegacySDL_Init(SDL_INIT_AUDIO) == -1)
{
Com_Printf("FAILED (%s)\n", SDL_GetError());
return qfalse;
}
}
Com_Printf("OK\n");
driver_name = SDL_GetCurrentAudioDriver();
if (driver_name)
{
Com_Printf("SDL audio driver is \"%s\".\n", driver_name);
}
else
{
Com_Printf("SDL audio driver isn't initialized.\n");
}
memset(&desired, '\0', sizeof(desired));
memset(&obtained, '\0', sizeof(obtained));
tmp = ((int) s_bits->value);
if ((tmp != 16) && (tmp != 8))
{
tmp = 16;
}
desired.freq = (int) s_khz->value * 1000; // desired freq expects Hz not kHz
if (!desired.freq)
{
desired.freq = 22050;
}
// dirty correction for profile values
if (desired.freq == 11000)
{
desired.freq = 11025;
}
else if (desired.freq == 22000)
{
desired.freq = 22050;
}
else if (desired.freq == 44000)
{
desired.freq = 44100;
}
else
{
desired.freq = 22050;
}
desired.format = ((tmp == 16) ? AUDIO_S16SYS : AUDIO_U8);
// I dunno if this is the best idea, but I'll give it a try...
// should probably check a cvar for this...
if (s_sdlDevSamps->value)
{
desired.samples = s_sdlDevSamps->value;
}
else
{
// just pick a sane default.
if (desired.freq <= 11025)
{
desired.samples = 256;
}
else if (desired.freq <= 22050)
{
desired.samples = 512;
}
else if (desired.freq <= 44100)
{
desired.samples = 1024;
}
else
{
desired.samples = 2048; // (*shrug*)
}
}
desired.channels = (int) s_sdlChannels->value;
desired.callback = SNDDMA_AudioCallback;
if (SDL_OpenAudio(&desired, &obtained) == -1)
{
Com_Printf("SDL_OpenAudio() failed: %s\n", SDL_GetError());
SDL_QuitSubSystem(SDL_INIT_AUDIO);
return qfalse;
}
SNDDMA_PrintAudiospec("SDL_AudioSpec", &obtained);
// dma.samples needs to be big, or id's mixer will just refuse to
// work at all; we need to keep it significantly bigger than the
// amount of SDL callback samples, and just copy a little each time
// the callback runs.
// 32768 is what the OSS driver filled in here on my system. I don't
// know if it's a good value overall, but at least we know it's
// reasonable...this is why I let the user override.
tmp = s_sdlMixSamps->value;
if (!tmp)
{
tmp = (obtained.samples * obtained.channels) * 10;
}
if (tmp & (tmp - 1)) // not a power of two? Seems to confuse something.
{
int val = 1;
while (val < tmp)
val <<= 1;
tmp = val;
}
dmapos = 0;
dma.samplebits = obtained.format & 0xFF; // first byte of format is bits.
dma.channels = obtained.channels;
dma.samples = tmp;
dma.submission_chunk = 1;
dma.speed = obtained.freq;
dmasize = (dma.samples * (dma.samplebits / 8));
dma.buffer = calloc(1, dmasize);
if (!dma.buffer)
{
Com_Printf("Unable to allocate dma buffer\n");
SDL_QuitSubSystem(SDL_INIT_AUDIO);
return qfalse;
}
Com_Printf("Starting SDL audio callback...\n");
SDL_PauseAudio(0); // start callback.
Com_Printf("SDL audio initialized.\n");
snd_inited = qtrue;
return qtrue;
}
/*
===============
SNDDMA_Init
===============
*/
qboolean SNDDMA_Init(void)
{
SDL_AudioSpec desired;
SDL_AudioSpec obtained;
int tmp;
#ifdef USE_SDL_AUDIO_CAPTURE
SDL_version sdlVersion;
#endif
if (snd_inited)
return qtrue;
if (!s_sdlBits) {
s_sdlBits = Cvar_Get("s_sdlBits", "16", CVAR_ARCHIVE);
s_sdlSpeed = Cvar_Get("s_sdlSpeed", "0", CVAR_ARCHIVE);
s_sdlChannels = Cvar_Get("s_sdlChannels", "2", CVAR_ARCHIVE);
s_sdlDevSamps = Cvar_Get("s_sdlDevSamps", "0", CVAR_ARCHIVE);
s_sdlMixSamps = Cvar_Get("s_sdlMixSamps", "0", CVAR_ARCHIVE);
}
Com_Printf( "SDL_Init( SDL_INIT_AUDIO )... " );
if (SDL_Init(SDL_INIT_AUDIO) != 0)
{
Com_Printf( "FAILED (%s)\n", SDL_GetError( ) );
return qfalse;
}
Com_Printf( "OK\n" );
Com_Printf( "SDL audio driver is \"%s\".\n", SDL_GetCurrentAudioDriver( ) );
memset(&desired, '\0', sizeof (desired));
memset(&obtained, '\0', sizeof (obtained));
tmp = ((int) s_sdlBits->value);
if ((tmp != 16) && (tmp != 8))
tmp = 16;
desired.freq = (int) s_sdlSpeed->value;
if(!desired.freq) desired.freq = 22050;
desired.format = ((tmp == 16) ? AUDIO_S16SYS : AUDIO_U8);
// I dunno if this is the best idea, but I'll give it a try...
// should probably check a cvar for this...
if (s_sdlDevSamps->value)
desired.samples = s_sdlDevSamps->value;
else
{
// just pick a sane default.
if (desired.freq <= 11025)
desired.samples = 256;
else if (desired.freq <= 22050)
desired.samples = 512;
else if (desired.freq <= 44100)
desired.samples = 1024;
else
desired.samples = 2048; // (*shrug*)
}
desired.channels = (int) s_sdlChannels->value;
desired.callback = SNDDMA_AudioCallback;
sdlPlaybackDevice = SDL_OpenAudioDevice(NULL, SDL_FALSE, &desired, &obtained, SDL_AUDIO_ALLOW_ANY_CHANGE);
if (sdlPlaybackDevice == 0)
{
Com_Printf("SDL_OpenAudioDevice() failed: %s\n", SDL_GetError());
SDL_QuitSubSystem(SDL_INIT_AUDIO);
return qfalse;
}
SNDDMA_PrintAudiospec("SDL_AudioSpec", &obtained);
// dma.samples needs to be big, or id's mixer will just refuse to
// work at all; we need to keep it significantly bigger than the
// amount of SDL callback samples, and just copy a little each time
// the callback runs.
// 32768 is what the OSS driver filled in here on my system. I don't
// know if it's a good value overall, but at least we know it's
// reasonable...this is why I let the user override.
tmp = s_sdlMixSamps->value;
if (!tmp)
tmp = (obtained.samples * obtained.channels) * 10;
if (tmp & (tmp - 1)) // not a power of two? Seems to confuse something.
{
int val = 1;
while (val < tmp)
val <<= 1;
tmp = val;
}
dmapos = 0;
dma.samplebits = SDL_AUDIO_BITSIZE(obtained.format);
dma.isfloat = SDL_AUDIO_ISFLOAT(obtained.format);
dma.channels = obtained.channels;
dma.samples = tmp;
dma.submission_chunk = 1;
dma.speed = obtained.freq;
dmasize = (dma.samples * (dma.samplebits/8));
dma.buffer = calloc(1, dmasize);
#ifdef USE_SDL_AUDIO_CAPTURE
// !!! FIXME: some of these SDL_OpenAudioDevice() values should be cvars.
s_sdlCapture = Cvar_Get( "s_sdlCapture", "1", CVAR_ARCHIVE | CVAR_LATCH );
// !!! FIXME: hopefully pulseaudio capture will be fixed in SDL 2.0.9... https://bugzilla.libsdl.org/show_bug.cgi?id=4087
SDL_GetVersion(&sdlVersion);
if (sdlVersion.major == 2 && sdlVersion.minor == 0 && sdlVersion.patch < 9 && Q_stricmp(SDL_GetCurrentAudioDriver(), "pulseaudio") == 0)
{
Com_Printf("SDL audio capture support disabled (pulseaudio capture does not work correctly with SDL %d.%d.%d)\n", sdlVersion.major, sdlVersion.minor, sdlVersion.patch);
}
else if (!s_sdlCapture->integer)
{
Com_Printf("SDL audio capture support disabled by user ('+set s_sdlCapture 1' to enable)\n");
}
#if USE_MUMBLE
else if (cl_useMumble->integer)
{
Com_Printf("SDL audio capture support disabled for Mumble support\n");
}
#endif
else
{
/* !!! FIXME: list available devices and let cvar specify one, like OpenAL does */
SDL_AudioSpec spec;
SDL_zero(spec);
spec.freq = 48000;
spec.format = AUDIO_S16SYS;
spec.channels = 1;
spec.samples = VOIP_MAX_PACKET_SAMPLES * 4;
sdlCaptureDevice = SDL_OpenAudioDevice(NULL, SDL_TRUE, &spec, NULL, 0);
Com_Printf( "SDL capture device %s.\n",
(sdlCaptureDevice == 0) ? "failed to open" : "opened");
}
sdlMasterGain = 1.0f;
#endif
Com_Printf("Starting SDL audio callback...\n");
SDL_PauseAudioDevice(sdlPlaybackDevice, 0); // start callback.
// don't unpause the capture device; we'll do that in StartCapture.
Com_Printf("SDL audio initialized.\n");
snd_inited = qtrue;
return qtrue;
}
