static void stream_buffer_attr_callback(pa_stream *stream, void *pdata) //{{{
{
ALCdevice *Device = pdata;
pulse_data *data = Device->ExtraData;
SuspendContext(NULL);
data->attr = *(ppa_stream_get_buffer_attr(stream));
Device->UpdateSize = 20 * Device->Frequency / 1000;
Device->NumUpdates = data->attr.tlength/data->frame_size / Device->UpdateSize;
if(Device->NumUpdates == 0)
Device->NumUpdates = 1;
ProcessContext(NULL);
}//}}}
static void stream_buffer_attr_callback(pa_stream *stream, void *pdata) //{{{
{
ALCdevice *Device = pdata;
pulse_data *data = Device->ExtraData;
SuspendContext(NULL);
data->attr = *(ppa_stream_get_buffer_attr(stream));
if((data->attr.tlength%data->attr.minreq) != 0)
AL_PRINT("new 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;
ProcessContext(NULL);
}//}}}
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;
} //}}}
