/** take a single block from the ringbuffers and send it out the
* attached track's ports */
nframes_t
Playback_DS::process ( nframes_t nframes )
{
THREAD_ASSERT( RT );
const size_t block_size = nframes * sizeof( sample_t );
// printf( "process: %lu %lu %lu\n", _frame, _frame + nframes, nframes );
for ( int i = channels(); i--; )
{
void *buf = track()->output[ i ].buffer( nframes );
if ( jack_ringbuffer_read( _rb[ i ], (char*)buf, block_size ) < block_size )
{
++_xruns;
memset( buf, 0, block_size );
/* FIXME: we need to resync somehow */
}
/* TODO: figure out a way to stop IO while muted without losing sync */
if ( track()->mute() || ( Track::soloing() && ! track()->solo() ) )
buffer_fill_with_silence( (sample_t*)buf, nframes );
}
block_processed();
/* FIXME: bogus */
return nframes;
}
void
AUX_Module::process ( nframes_t nframes )
{
if ( !bypass() )
{
float g = DB_CO( control_input[0].control_value() );
for ( unsigned int i = 0; i < audio_input.size(); ++i )
{
if ( audio_input[i].connected() )
buffer_copy_and_apply_gain( (sample_t*)jack_output[i].buffer( nframes ), (sample_t*)audio_input[i].buffer(), nframes, g );
}
}
else
{
for ( unsigned int i = 0; i < audio_input.size(); ++i )
{
if ( audio_input[i].connected() )
buffer_fill_with_silence( (sample_t*)jack_output[i].buffer( nframes ), nframes );
}
}
}
/* determine number of output ports, signal if changed. */
void
Chain::configure_ports ( void )
{
int nouts = 0;
client()->lock();
for ( int i = 0; i < modules(); ++i )
{
module( i )->configure_inputs( nouts );
nouts = module( i )->noutputs();
}
unsigned int req_buffers = required_buffers();
DMESSAGE( "required_buffers = %i", req_buffers );
if ( scratch_port.size() < req_buffers )
{
for ( unsigned int i = scratch_port.size(); i--; )
free(scratch_port[i].buffer());
scratch_port.clear();
for ( unsigned int i = 0; i < req_buffers; ++i )
{
Module::Port p( NULL, Module::Port::OUTPUT, Module::Port::AUDIO );
p.connect_to( buffer_alloc( client()->nframes() ) );
buffer_fill_with_silence( (sample_t*)p.buffer(), client()->nframes() );
scratch_port.push_back( p );
}
}
build_process_queue();
client()->unlock();
parent()->redraw();
}
void
AUX_Module::process ( nframes_t nframes )
{
if ( unlikely( bypass() ) )
{
for ( unsigned int i = 0; i < audio_input.size(); ++i )
{
if ( audio_input[i].connected() )
buffer_fill_with_silence( (sample_t*)aux_audio_output[i].jack_port()->buffer(nframes), nframes );
}
}
else
{
float gt = DB_CO( control_input[0].control_value() );
sample_t gainbuf[nframes];
bool use_gainbuf = smoothing.apply( gainbuf, nframes, gt );
if ( unlikely( use_gainbuf ) )
{
for ( unsigned int i = 0; i < audio_input.size(); ++i )
{
if ( audio_input[i].connected() )
buffer_copy_and_apply_gain_buffer( (sample_t*)aux_audio_output[i].jack_port()->buffer(nframes), (sample_t*)audio_input[i].buffer(), gainbuf, nframes );
}
}
else
{
for ( unsigned int i = 0; i < audio_input.size(); ++i )
{
if ( audio_input[i].connected() )
buffer_copy_and_apply_gain( (sample_t*)aux_audio_output[i].jack_port()->buffer(nframes), (sample_t*)audio_input[i].buffer(), nframes, gt );
}
}
}
}
