static void pulse_capture_samples(ALCdevice *device, ALCvoid *buffer, ALCuint samples) //{{{
{
pulse_data *data = device->ExtraData;
ALCuint available = RingBufferSize(data->ring);
const void *buf;
size_t length;
available *= data->frame_size;
samples *= data->frame_size;
ppa_threaded_mainloop_lock(data->loop);
if(available+ppa_stream_readable_size(data->stream) < samples)
{
ppa_threaded_mainloop_unlock(data->loop);
alcSetError(device, ALC_INVALID_VALUE);
return;
}
available = min(available, samples);
if(available > 0)
{
ReadRingBuffer(data->ring, buffer, available/data->frame_size);
buffer = (ALubyte*)buffer + available;
samples -= available;
}
/* Capture is done in fragment-sized chunks, so we loop until we get all
* that's requested */
while(samples > 0)
{
if(ppa_stream_peek(data->stream, &buf, &length) < 0)
{
AL_PRINT("pa_stream_peek() failed: %s\n",
ppa_strerror(ppa_context_errno(data->context)));
break;
}
available = min(length, samples);
memcpy(buffer, buf, available);
buffer = (ALubyte*)buffer + available;
buf = (const ALubyte*)buf + available;
samples -= available;
length -= available;
/* Any unread data in the fragment will be lost, so save it */
length /= data->frame_size;
if(length > 0)
{
if(length > data->samples)
length = data->samples;
WriteRingBuffer(data->ring, buf, length);
}
ppa_stream_drop(data->stream);
}
ppa_threaded_mainloop_unlock(data->loop);
} //}}}
static void pulse_close(ALCdevice *device) //{{{
{
pulse_data *data = device->ExtraData;
ppa_threaded_mainloop_lock(data->loop);
if(data->stream)
{
ppa_stream_disconnect(data->stream);
ppa_stream_unref(data->stream);
}
ppa_context_disconnect(data->context);
ppa_context_unref(data->context);
ppa_threaded_mainloop_unlock(data->loop);
ppa_threaded_mainloop_stop(data->loop);
ppa_threaded_mainloop_free(data->loop);
device->ExtraData = NULL;
free(device->szDeviceName);
device->szDeviceName = NULL;
DestroyRingBuffer(data->ring);
ppa_xfree(data);
} //}}}
static void pulse_stop_playback( ALCdevice* device ) //{{{
{
pulse_data* data = device->ExtraData;
if ( !data->stream )
{
return;
}
ppa_threaded_mainloop_lock( data->loop );
#if PA_CHECK_VERSION(0,9,15)
if ( ppa_stream_set_buffer_attr_callback )
{
ppa_stream_set_buffer_attr_callback( data->stream, NULL, NULL );
}
#endif
ppa_stream_set_moved_callback( data->stream, NULL, NULL );
ppa_stream_set_write_callback( data->stream, NULL, NULL );
ppa_stream_disconnect( data->stream );
ppa_stream_unref( data->stream );
data->stream = NULL;
ppa_threaded_mainloop_unlock( data->loop );
} //}}}
static void probe_devices( ALboolean capture )
{
pa_threaded_mainloop* loop;
if ( capture == AL_FALSE )
{
allDevNameMap = malloc( sizeof( DevMap ) * 1 );
allDevNameMap[0].name = strdup( "PulseAudio Default" );
allDevNameMap[0].device_name = NULL;
numDevNames = 1;
}
else
{
allCaptureDevNameMap = malloc( sizeof( DevMap ) * 1 );
allCaptureDevNameMap[0].name = strdup( "PulseAudio Default" );
allCaptureDevNameMap[0].device_name = NULL;
numCaptureDevNames = 1;
}
if ( ( loop = ppa_threaded_mainloop_new() ) &&
ppa_threaded_mainloop_start( loop ) >= 0 )
{
pa_context* context;
ppa_threaded_mainloop_lock( loop );
context = connect_context( loop );
if ( context )
{
pa_operation* o;
if ( capture == AL_FALSE )
{
o = ppa_context_get_sink_info_list( context, sink_device_callback, loop );
}
else
{
o = ppa_context_get_source_info_list( context, source_device_callback, loop );
}
while ( ppa_operation_get_state( o ) == PA_OPERATION_RUNNING )
{
ppa_threaded_mainloop_wait( loop );
}
ppa_operation_unref( o );
ppa_context_disconnect( context );
ppa_context_unref( context );
}
ppa_threaded_mainloop_unlock( loop );
ppa_threaded_mainloop_stop( loop );
}
if ( loop )
{
ppa_threaded_mainloop_free( loop );
}
}
static ALCuint pulse_available_samples( ALCdevice* device ) //{{{
{
pulse_data* data = device->ExtraData;
size_t samples;
ppa_threaded_mainloop_lock( data->loop );
/* Capture is done in fragment-sized chunks, so we loop until we get all
* that's available */
samples = ( device->Connected ? ppa_stream_readable_size( data->stream ) : 0 );
while ( samples > 0 )
{
const void* buf;
size_t length;
if ( ppa_stream_peek( data->stream, &buf, &length ) < 0 )
{
AL_PRINT( "pa_stream_peek() failed: %s\n",
ppa_strerror( ppa_context_errno( data->context ) ) );
break;
}
WriteRingBuffer( data->ring, buf, length / data->frame_size );
samples -= length;
ppa_stream_drop( data->stream );
}
ppa_threaded_mainloop_unlock( data->loop );
return RingBufferSize( data->ring );
} //}}}
static ALCboolean pulse_open( ALCdevice* device, const ALCchar* device_name ) //{{{
{
pulse_data* data = ppa_xmalloc( sizeof( pulse_data ) );
memset( data, 0, sizeof( *data ) );
if ( !( data->loop = ppa_threaded_mainloop_new() ) )
{
AL_PRINT( "pa_threaded_mainloop_new() failed!\n" );
goto out;
}
if ( ppa_threaded_mainloop_start( data->loop ) < 0 )
{
AL_PRINT( "pa_threaded_mainloop_start() failed\n" );
goto out;
}
ppa_threaded_mainloop_lock( data->loop );
device->ExtraData = data;
data->context = connect_context( data->loop );
if ( !data->context )
{
ppa_threaded_mainloop_unlock( data->loop );
goto out;
}
ppa_context_set_state_callback( data->context, context_state_callback2, device );
device->szDeviceName = strdup( device_name );
ppa_threaded_mainloop_unlock( data->loop );
return ALC_TRUE;
out:
if ( data->loop )
{
ppa_threaded_mainloop_stop( data->loop );
ppa_threaded_mainloop_free( data->loop );
}
device->ExtraData = NULL;
ppa_xfree( data );
return ALC_FALSE;
} //}}}
static void pulse_stop_capture(ALCdevice *device) //{{{
{
pulse_data *data = device->ExtraData;
ppa_threaded_mainloop_lock(data->loop);
ppa_stream_set_read_callback(data->stream, NULL, NULL);
ppa_threaded_mainloop_unlock(data->loop);
} //}}}
static void pulse_stop_capture(ALCdevice *device) //{{{
{
pulse_data *data = device->ExtraData;
pa_operation *o;
ppa_threaded_mainloop_lock(data->loop);
o = ppa_stream_cork(data->stream, 1, stream_success_callback, device);
while(ppa_operation_get_state(o) == PA_OPERATION_RUNNING)
ppa_threaded_mainloop_wait(data->loop);
ppa_operation_unref(o);
ppa_threaded_mainloop_unlock(data->loop);
} //}}}
static ALCuint pulse_available_samples(ALCdevice *device) //{{{
{
pulse_data *data = device->ExtraData;
ALCuint ret;
ppa_threaded_mainloop_lock(data->loop);
ret = RingBufferSize(data->ring);
ret += ppa_stream_readable_size(data->stream)/data->frame_size;
ppa_threaded_mainloop_unlock(data->loop);
return ret;
} //}}}
static void pulse_stop_playback(ALCdevice *device) //{{{
{
pulse_data *data = device->ExtraData;
if(!data->stream)
return;
ppa_threaded_mainloop_lock(data->loop);
ppa_stream_disconnect(data->stream);
ppa_stream_unref(data->stream);
data->stream = NULL;
ppa_threaded_mainloop_unlock(data->loop);
} //}}}
static ALCboolean pulse_reset_playback(ALCdevice *device) //{{{
{
pulse_data *data = device->ExtraData;
pa_stream_state_t state;
ppa_threaded_mainloop_lock(data->loop);
data->frame_size = aluBytesFromFormat(device->Format) *
aluChannelsFromFormat(device->Format);
data->attr.minreq = data->frame_size * device->UpdateSize;
data->attr.prebuf = -1;
data->attr.maxlength = -1;
data->attr.fragsize = -1;
data->attr.tlength = data->attr.minreq * device->NumUpdates;
data->stream_name = "Playback Stream";
switch(aluBytesFromFormat(device->Format))
{
case 1:
data->spec.format = PA_SAMPLE_U8;
break;
case 2:
data->spec.format = PA_SAMPLE_S16NE;
break;
case 4:
data->spec.format = PA_SAMPLE_FLOAT32NE;
break;
default:
AL_PRINT("Unknown format: 0x%x\n", device->Format);
ppa_threaded_mainloop_unlock(data->loop);
return ALC_FALSE;
}
data->spec.rate = device->Frequency;
data->spec.channels = aluChannelsFromFormat(device->Format);
if(ppa_sample_spec_valid(&data->spec) == 0)
{
AL_PRINT("Invalid sample format\n");
ppa_threaded_mainloop_unlock(data->loop);
return ALC_FALSE;
}
data->stream = ppa_stream_new(data->context, data->stream_name, &data->spec, NULL);
if(!data->stream)
{
AL_PRINT("pa_stream_new() failed: %s\n",
ppa_strerror(ppa_context_errno(data->context)));
ppa_threaded_mainloop_unlock(data->loop);
return ALC_FALSE;
}
if(ppa_stream_connect_playback(data->stream, NULL, &data->attr, PA_STREAM_ADJUST_LATENCY, NULL, NULL) < 0)
{
AL_PRINT("Stream did not connect: %s\n",
ppa_strerror(ppa_context_errno(data->context)));
ppa_stream_unref(data->stream);
data->stream = NULL;
ppa_threaded_mainloop_unlock(data->loop);
return ALC_FALSE;
}
while((state=ppa_stream_get_state(data->stream)) != PA_STREAM_READY)
{
if(!PA_STREAM_IS_GOOD(state))
{
AL_PRINT("Stream did not get ready: %s\n",
ppa_strerror(ppa_context_errno(data->context)));
ppa_stream_unref(data->stream);
data->stream = NULL;
ppa_threaded_mainloop_unlock(data->loop);
return ALC_FALSE;
}
ppa_threaded_mainloop_unlock(data->loop);
Sleep(1);
ppa_threaded_mainloop_lock(data->loop);
}
data->attr = *(ppa_stream_get_buffer_attr(data->stream));
if((data->attr.tlength%data->attr.minreq) != 0)
AL_PRINT("tlength (%d) is not a multiple of minreq (%d)!\n",
data->attr.tlength, data->attr.minreq);
device->UpdateSize = data->attr.minreq;
device->NumUpdates = data->attr.tlength/data->attr.minreq;
ppa_stream_set_write_callback(data->stream, stream_write_callback, device);
ppa_threaded_mainloop_unlock(data->loop);
return ALC_TRUE;
} //}}}
static ALCboolean pulse_open(ALCdevice *device, const ALCchar *device_name) //{{{
{
pulse_data *data = ppa_xmalloc0(sizeof(pulse_data));
pa_context_state_t state;
if(ppa_get_binary_name(data->path_name, sizeof(data->path_name)))
data->context_name = ppa_path_get_filename(data->path_name);
else
data->context_name = "OpenAL Soft";
if(!(data->loop = ppa_threaded_mainloop_new()))
{
AL_PRINT("pa_threaded_mainloop_new() failed!\n");
goto out;
}
if(ppa_threaded_mainloop_start(data->loop) < 0)
{
AL_PRINT("pa_threaded_mainloop_start() failed\n");
goto out;
}
ppa_threaded_mainloop_lock(data->loop);
data->context = ppa_context_new(ppa_threaded_mainloop_get_api(data->loop), data->context_name);
if(!data->context)
{
AL_PRINT("pa_context_new() failed: %s\n",
ppa_strerror(ppa_context_errno(data->context)));
ppa_threaded_mainloop_unlock(data->loop);
goto out;
}
if(ppa_context_connect(data->context, NULL, PA_CONTEXT_NOAUTOSPAWN, NULL) < 0)
{
AL_PRINT("Context did not connect: %s\n",
ppa_strerror(ppa_context_errno(data->context)));
ppa_context_unref(data->context);
data->context = NULL;
ppa_threaded_mainloop_unlock(data->loop);
goto out;
}
while((state=ppa_context_get_state(data->context)) != PA_CONTEXT_READY)
{
if(!PA_CONTEXT_IS_GOOD(state))
{
AL_PRINT("Context did not get ready: %s\n",
ppa_strerror(ppa_context_errno(data->context)));
ppa_context_unref(data->context);
data->context = NULL;
ppa_threaded_mainloop_unlock(data->loop);
goto out;
}
ppa_threaded_mainloop_unlock(data->loop);
Sleep(1);
ppa_threaded_mainloop_lock(data->loop);
}
device->szDeviceName = strdup(device_name);
device->ExtraData = data;
ppa_threaded_mainloop_unlock(data->loop);
return ALC_TRUE;
out:
if(data->loop)
{
ppa_threaded_mainloop_stop(data->loop);
ppa_threaded_mainloop_free(data->loop);
}
ppa_xfree(data);
return ALC_FALSE;
} //}}}
static ALCboolean pulse_reset_playback( ALCdevice* device ) //{{{
{
pulse_data* data = device->ExtraData;
pa_stream_flags_t flags = 0;
pa_channel_map chanmap;
ppa_threaded_mainloop_lock( data->loop );
if ( !ConfigValueExists( NULL, "format" ) )
{
pa_operation* o;
o = ppa_context_get_sink_info_by_name( data->context, data->device_name, sink_info_callback, device );
while ( ppa_operation_get_state( o ) == PA_OPERATION_RUNNING )
{
ppa_threaded_mainloop_wait( data->loop );
}
ppa_operation_unref( o );
}
if ( !ConfigValueExists( NULL, "frequency" ) )
{
flags |= PA_STREAM_FIX_RATE;
}
data->frame_size = aluFrameSizeFromFormat( device->Format );
data->attr.minreq = -1;
data->attr.prebuf = -1;
data->attr.fragsize = -1;
data->attr.tlength = device->UpdateSize * device->NumUpdates *
data->frame_size;
data->attr.maxlength = data->attr.tlength;
switch ( aluBytesFromFormat( device->Format ) )
{
case 1:
data->spec.format = PA_SAMPLE_U8;
break;
case 2:
data->spec.format = PA_SAMPLE_S16NE;
break;
case 4:
data->spec.format = PA_SAMPLE_FLOAT32NE;
break;
default:
AL_PRINT( "Unknown format: 0x%x\n", device->Format );
ppa_threaded_mainloop_unlock( data->loop );
return ALC_FALSE;
}
data->spec.rate = device->Frequency;
data->spec.channels = aluChannelsFromFormat( device->Format );
if ( ppa_sample_spec_valid( &data->spec ) == 0 )
{
AL_PRINT( "Invalid sample format\n" );
ppa_threaded_mainloop_unlock( data->loop );
return ALC_FALSE;
}
if ( !ppa_channel_map_init_auto( &chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX ) )
{
AL_PRINT( "Couldn't build map for channel count (%d)!\n", data->spec.channels );
ppa_threaded_mainloop_unlock( data->loop );
return ALC_FALSE;
}
SetDefaultWFXChannelOrder( device );
data->stream = connect_playback_stream( device, flags, &data->attr, &data->spec, &chanmap );
if ( !data->stream )
{
ppa_threaded_mainloop_unlock( data->loop );
return ALC_FALSE;
}
ppa_stream_set_state_callback( data->stream, stream_state_callback2, device );
data->spec = *( ppa_stream_get_sample_spec( data->stream ) );
if ( device->Frequency != data->spec.rate )
{
pa_operation* o;
/* Server updated our playback rate, so modify the buffer attribs
* accordingly. */
data->attr.tlength = ( ALuint64 )( data->attr.tlength / data->frame_size ) *
data->spec.rate / device->Frequency * data->frame_size;
data->attr.maxlength = data->attr.tlength;
o = ppa_stream_set_buffer_attr( data->stream, &data->attr,
stream_success_callback, device );
while ( ppa_operation_get_state( o ) == PA_OPERATION_RUNNING )
{
ppa_threaded_mainloop_wait( data->loop );
}
ppa_operation_unref( o );
device->Frequency = data->spec.rate;
}
stream_buffer_attr_callback( data->stream, device );
#if PA_CHECK_VERSION(0,9,15)
if ( ppa_stream_set_buffer_attr_callback )
{
ppa_stream_set_buffer_attr_callback( data->stream, stream_buffer_attr_callback, device );
}
#endif
ppa_stream_set_moved_callback( data->stream, stream_device_callback, device );
stream_write_callback( data->stream, data->attr.tlength, device );
ppa_stream_set_write_callback( data->stream, stream_write_callback, device );
ppa_threaded_mainloop_unlock( data->loop );
return ALC_TRUE;
} //}}}
static ALCboolean pulse_open_capture( ALCdevice* device, const ALCchar* device_name ) //{{{
{
char* pulse_name = NULL;
pulse_data* data;
pa_stream_flags_t flags = 0;
pa_stream_state_t state;
pa_channel_map chanmap;
if ( !pulse_load() )
{
return ALC_FALSE;
}
if ( !allCaptureDevNameMap )
{
probe_devices( AL_TRUE );
}
if ( !device_name )
{
device_name = allCaptureDevNameMap[0].name;
}
else
{
ALuint i;
for ( i = 0; i < numCaptureDevNames; i++ )
{
if ( strcmp( device_name, allCaptureDevNameMap[i].name ) == 0 )
{
pulse_name = allCaptureDevNameMap[i].device_name;
break;
}
}
if ( i == numCaptureDevNames )
{
return ALC_FALSE;
}
}
if ( pulse_open( device, device_name ) == ALC_FALSE )
{
return ALC_FALSE;
}
data = device->ExtraData;
ppa_threaded_mainloop_lock( data->loop );
data->samples = device->UpdateSize * device->NumUpdates;
data->frame_size = aluFrameSizeFromFormat( device->Format );
if ( !( data->ring = CreateRingBuffer( data->frame_size, data->samples ) ) )
{
ppa_threaded_mainloop_unlock( data->loop );
goto fail;
}
data->attr.minreq = -1;
data->attr.prebuf = -1;
data->attr.maxlength = data->frame_size * data->samples;
data->attr.tlength = -1;
data->attr.fragsize = min( data->frame_size * data->samples,
10 * device->Frequency / 1000 );
data->spec.rate = device->Frequency;
data->spec.channels = aluChannelsFromFormat( device->Format );
switch ( aluBytesFromFormat( device->Format ) )
{
case 1:
data->spec.format = PA_SAMPLE_U8;
break;
case 2:
data->spec.format = PA_SAMPLE_S16NE;
break;
case 4:
data->spec.format = PA_SAMPLE_FLOAT32NE;
break;
default:
AL_PRINT( "Unknown format: 0x%x\n", device->Format );
ppa_threaded_mainloop_unlock( data->loop );
goto fail;
}
if ( ppa_sample_spec_valid( &data->spec ) == 0 )
{
AL_PRINT( "Invalid sample format\n" );
ppa_threaded_mainloop_unlock( data->loop );
goto fail;
}
if ( !ppa_channel_map_init_auto( &chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX ) )
{
AL_PRINT( "Couldn't build map for channel count (%d)!\n", data->spec.channels );
ppa_threaded_mainloop_unlock( data->loop );
goto fail;
}
data->stream = ppa_stream_new( data->context, "Capture Stream", &data->spec, &chanmap );
if ( !data->stream )
{
AL_PRINT( "pa_stream_new() failed: %s\n",
ppa_strerror( ppa_context_errno( data->context ) ) );
ppa_threaded_mainloop_unlock( data->loop );
goto fail;
}
ppa_stream_set_state_callback( data->stream, stream_state_callback, data->loop );
flags |= PA_STREAM_START_CORKED | PA_STREAM_ADJUST_LATENCY;
if ( ppa_stream_connect_record( data->stream, pulse_name, &data->attr, flags ) < 0 )
{
AL_PRINT( "Stream did not connect: %s\n",
ppa_strerror( ppa_context_errno( data->context ) ) );
ppa_stream_unref( data->stream );
data->stream = NULL;
ppa_threaded_mainloop_unlock( data->loop );
goto fail;
}
while ( ( state = ppa_stream_get_state( data->stream ) ) != PA_STREAM_READY )
{
if ( !PA_STREAM_IS_GOOD( state ) )
{
AL_PRINT( "Stream did not get ready: %s\n",
ppa_strerror( ppa_context_errno( data->context ) ) );
ppa_stream_unref( data->stream );
data->stream = NULL;
ppa_threaded_mainloop_unlock( data->loop );
goto fail;
}
ppa_threaded_mainloop_wait( data->loop );
}
ppa_stream_set_state_callback( data->stream, stream_state_callback2, device );
ppa_threaded_mainloop_unlock( data->loop );
return ALC_TRUE;
fail:
pulse_close( device );
return ALC_FALSE;
} //}}}
static ALCboolean pulse_open_capture(ALCdevice *device, const ALCchar *device_name) //{{{
{
pulse_data *data;
pa_stream_state_t state;
if(!pa_handle)
return ALC_FALSE;
if(!device_name)
device_name = pulse_capture_device;
else if(strcmp(device_name, pulse_capture_device) != 0)
return ALC_FALSE;
if(pulse_open(device, device_name) == ALC_FALSE)
return ALC_FALSE;
data = device->ExtraData;
ppa_threaded_mainloop_lock(data->loop);
data->samples = device->UpdateSize * device->NumUpdates;
data->frame_size = aluBytesFromFormat(device->Format) *
aluChannelsFromFormat(device->Format);
if(!(data->ring = CreateRingBuffer(data->frame_size, data->samples)))
{
ppa_threaded_mainloop_unlock(data->loop);
pulse_close(device);
return ALC_FALSE;
}
data->attr.minreq = -1;
data->attr.prebuf = -1;
data->attr.maxlength = -1;
data->attr.tlength = -1;
data->attr.fragsize = data->frame_size * data->samples / 2;
data->stream_name = "Capture Stream";
data->spec.rate = device->Frequency;
data->spec.channels = aluChannelsFromFormat(device->Format);
switch(aluBytesFromFormat(device->Format))
{
case 1:
data->spec.format = PA_SAMPLE_U8;
break;
case 2:
data->spec.format = PA_SAMPLE_S16NE;
break;
case 4:
data->spec.format = PA_SAMPLE_FLOAT32NE;
break;
default:
AL_PRINT("Unknown format: 0x%x\n", device->Format);
ppa_threaded_mainloop_unlock(data->loop);
pulse_close(device);
return ALC_FALSE;
}
if(ppa_sample_spec_valid(&data->spec) == 0)
{
AL_PRINT("Invalid sample format\n");
ppa_threaded_mainloop_unlock(data->loop);
pulse_close(device);
return ALC_FALSE;
}
data->stream = ppa_stream_new(data->context, data->stream_name, &data->spec, NULL);
if(!data->stream)
{
AL_PRINT("pa_stream_new() failed: %s\n",
ppa_strerror(ppa_context_errno(data->context)));
ppa_threaded_mainloop_unlock(data->loop);
pulse_close(device);
return ALC_FALSE;
}
if(ppa_stream_connect_record(data->stream, NULL, &data->attr, PA_STREAM_ADJUST_LATENCY) < 0)
{
AL_PRINT("Stream did not connect: %s\n",
ppa_strerror(ppa_context_errno(data->context)));
ppa_stream_unref(data->stream);
ppa_threaded_mainloop_unlock(data->loop);
data->stream = NULL;
pulse_close(device);
return ALC_FALSE;
}
while((state=ppa_stream_get_state(data->stream)) != PA_STREAM_READY)
{
if(!PA_STREAM_IS_GOOD(state))
{
AL_PRINT("Stream did not get ready: %s\n",
ppa_strerror(ppa_context_errno(data->context)));
ppa_stream_unref(data->stream);
ppa_threaded_mainloop_unlock(data->loop);
data->stream = NULL;
pulse_close(device);
return ALC_FALSE;
}
ppa_threaded_mainloop_unlock(data->loop);
Sleep(1);
ppa_threaded_mainloop_lock(data->loop);
}
ppa_threaded_mainloop_unlock(data->loop);
return ALC_TRUE;
} //}}}
// OpenAL {{{
static ALCboolean pulse_open_playback( ALCdevice* device, const ALCchar* device_name ) //{{{
{
char* pulse_name = NULL;
pa_sample_spec spec;
pulse_data* data;
ALuint len;
if ( !pulse_load() )
{
return ALC_FALSE;
}
if ( !device_name )
{
device_name = pulse_device;
}
else if ( strcmp( device_name, pulse_device ) != 0 )
{
ALuint i;
if ( !allDevNameMap )
{
probe_devices( AL_FALSE );
}
for ( i = 0; i < numDevNames; i++ )
{
if ( strcmp( device_name, allDevNameMap[i].name ) == 0 )
{
pulse_name = allDevNameMap[i].device_name;
break;
}
}
if ( i == numDevNames )
{
return ALC_FALSE;
}
}
if ( pulse_open( device, device_name ) == ALC_FALSE )
{
return ALC_FALSE;
}
data = device->ExtraData;
ppa_threaded_mainloop_lock( data->loop );
spec.format = PA_SAMPLE_S16NE;
spec.rate = 44100;
spec.channels = 2;
data->device_name = pulse_name;
pa_stream* stream = connect_playback_stream( device, 0, NULL, &spec, NULL );
if ( !stream )
{
ppa_threaded_mainloop_unlock( data->loop );
goto fail;
}
if ( ppa_stream_is_suspended( stream ) )
{
ppa_stream_disconnect( stream );
ppa_stream_unref( stream );
ppa_threaded_mainloop_unlock( data->loop );
goto fail;
}
data->device_name = strdup( ppa_stream_get_device_name( stream ) );
ppa_stream_disconnect( stream );
ppa_stream_unref( stream );
ppa_threaded_mainloop_unlock( data->loop );
len = GetConfigValueInt( "pulse", "buffer-length", 2048 );
if ( len != 0 )
{
device->UpdateSize = len;
device->NumUpdates = 1;
}
return ALC_TRUE;
fail:
pulse_close( device );
return ALC_FALSE;
} //}}}
static ALCboolean pulse_reset_playback(ALCdevice *device) //{{{
{
pulse_data *data = device->ExtraData;
pa_stream_state_t state;
pa_channel_map chanmap;
ppa_threaded_mainloop_lock(data->loop);
data->frame_size = aluBytesFromFormat(device->Format) *
aluChannelsFromFormat(device->Format);
data->attr.minreq = data->frame_size * device->UpdateSize;
data->attr.prebuf = -1;
data->attr.maxlength = -1;
data->attr.fragsize = -1;
data->attr.tlength = data->attr.minreq * device->NumUpdates;
data->stream_name = "Playback Stream";
switch(aluBytesFromFormat(device->Format))
{
case 1:
data->spec.format = PA_SAMPLE_U8;
break;
case 2:
data->spec.format = PA_SAMPLE_S16NE;
break;
case 4:
data->spec.format = PA_SAMPLE_FLOAT32NE;
break;
default:
AL_PRINT("Unknown format: 0x%x\n", device->Format);
ppa_threaded_mainloop_unlock(data->loop);
return ALC_FALSE;
}
data->spec.rate = device->Frequency;
data->spec.channels = aluChannelsFromFormat(device->Format);
if(ppa_sample_spec_valid(&data->spec) == 0)
{
AL_PRINT("Invalid sample format\n");
ppa_threaded_mainloop_unlock(data->loop);
return ALC_FALSE;
}
#ifdef _WIN32
if(!ppa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
{
AL_PRINT("Couldn't build map for channel count (%d)!", data->spec.channels);
ppa_threaded_mainloop_unlock(data->loop);
return ALC_FALSE;
}
#else
switch(data->spec.channels)
{
case 1:
ppa_channel_map_parse(&chanmap, "mono");
break;
case 2:
ppa_channel_map_parse(&chanmap, "front-left,front-right");
break;
case 4:
ppa_channel_map_parse(&chanmap, "front-left,front-right,rear-left,rear-right");
break;
case 6:
ppa_channel_map_parse(&chanmap, "front-left,front-right,rear-left,rear-right,front-center,lfe");
break;
case 7:
ppa_channel_map_parse(&chanmap, "front-left,front-right,front-center,lfe,rear-center,side-left,side-right");
break;
case 8:
ppa_channel_map_parse(&chanmap, "front-left,front-right,rear-left,rear-right,front-center,lfe,side-left,side-right");
break;
default:
AL_PRINT("Got unhandled channel count (%d)!", data->spec.channels);
ppa_threaded_mainloop_unlock(data->loop);
return ALC_FALSE;
}
#endif
data->stream = ppa_stream_new(data->context, data->stream_name, &data->spec, &chanmap);
if(!data->stream)
{
AL_PRINT("pa_stream_new() failed: %s\n",
ppa_strerror(ppa_context_errno(data->context)));
ppa_threaded_mainloop_unlock(data->loop);
return ALC_FALSE;
}
ppa_stream_set_state_callback(data->stream, stream_state_callback, device);
ppa_stream_set_write_callback(data->stream, stream_write_callback, device);
if(ppa_stream_connect_playback(data->stream, NULL, &data->attr, PA_STREAM_ADJUST_LATENCY, NULL, NULL) < 0)
{
AL_PRINT("Stream did not connect: %s\n",
ppa_strerror(ppa_context_errno(data->context)));
ppa_stream_unref(data->stream);
data->stream = NULL;
ppa_threaded_mainloop_unlock(data->loop);
return ALC_FALSE;
}
while((state=ppa_stream_get_state(data->stream)) != PA_STREAM_READY)
{
if(!PA_STREAM_IS_GOOD(state))
{
AL_PRINT("Stream did not get ready: %s\n",
ppa_strerror(ppa_context_errno(data->context)));
ppa_stream_unref(data->stream);
data->stream = NULL;
ppa_threaded_mainloop_unlock(data->loop);
return ALC_FALSE;
}
ppa_threaded_mainloop_wait(data->loop);
ppa_threaded_mainloop_accept(data->loop);
}
ppa_stream_set_state_callback(data->stream, stream_state_callback2, device);
stream_buffer_attr_callback(data->stream, device);
ppa_stream_set_buffer_attr_callback(data->stream, stream_buffer_attr_callback, device);
ppa_threaded_mainloop_unlock(data->loop);
return ALC_TRUE;
} //}}}