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#include "pulsedevice.h"
#include "pulsemodel.h"
#include "../ui/devicewidget.h"
#include <tqapplication.h>
#include <string.h>
// ---- peak-level event (PA thread → main thread) -----------------------------
static const int PA_LEVEL_EVENT = TQEvent::User + 2;
struct PALevelEvent : public TQCustomEvent {
float level;
PALevelEvent( float l ) : TQCustomEvent(PA_LEVEL_EVENT), level(l) {}
};
// ---- ctor / dtor ------------------------------------------------------------
PulseDevice::PulseDevice( AudioDevice::Category cat, uint32_t paIndex, TQObject *parent )
: AudioDevice(parent),
m_category(cat), m_paIndex(paIndex), m_sinkIndex(PA_INVALID_INDEX),
m_volume(0), m_muted(false), m_pan(0), m_channels(2),
m_context(0), m_mainloop(0),
m_monitorStream(0), m_model(0), m_recordingCount(0)
{
}
PulseDevice::~PulseDevice()
{
// detach() should have been called by PulseModel before destruction;
// this is a safety net for cases where it wasn't.
if ( m_monitorStream ) {
pa_stream_set_read_callback( m_monitorStream, 0, 0 );
pa_stream_unref( m_monitorStream );
m_monitorStream = 0;
}
}
// ---- context wiring ---------------------------------------------------------
void PulseDevice::setPAContext( pa_context *ctx, pa_threaded_mainloop *mainloop )
{
m_context = ctx;
m_mainloop = mainloop;
startMonitoring();
}
void PulseDevice::detach()
{
if ( m_monitorStream && m_mainloop ) {
pa_threaded_mainloop_lock( m_mainloop );
pa_stream_set_read_callback( m_monitorStream, 0, 0 );
pa_stream_disconnect( m_monitorStream );
pa_stream_unref( m_monitorStream );
m_monitorStream = 0;
pa_threaded_mainloop_unlock( m_mainloop );
}
m_context = 0;
m_mainloop = 0;
}
// ---- update -----------------------------------------------------------------
void PulseDevice::update( const TQString &name, int volume, bool muted,
uint8_t channels, int pan,
const TQString &monitorName, const TQString &iconName )
{
bool nameChange = ( name != m_name );
bool volumeChange = ( volume != m_volume );
bool muteChange = ( muted != m_muted );
bool panChange = ( pan != m_pan );
m_name = name;
m_iconName = iconName;
m_volume = volume;
m_muted = muted;
m_channels = channels ? channels : 2;
m_pan = pan;
if ( m_monitorName.isEmpty() && !monitorName.isEmpty() ) {
m_monitorName = monitorName;
if ( m_context ) startMonitoring();
}
if ( nameChange ) emit nameChanged( m_name );
if ( volumeChange ) emit volumeChanged( m_volume );
if ( muteChange ) emit muteChanged( m_muted );
if ( panChange ) emit panChanged( m_pan );
}
// ---- peak monitoring --------------------------------------------------------
void PulseDevice::startMonitoring()
{
if ( !m_context || !m_mainloop || m_monitorName.isEmpty() || m_monitorStream )
return;
pa_sample_spec spec;
spec.format = PA_SAMPLE_FLOAT32NE;
spec.rate = 25;
spec.channels = 1;
pa_threaded_mainloop_lock( m_mainloop );
pa_proplist *props = pa_proplist_new();
pa_proplist_sets( props, PA_PROP_MEDIA_ROLE, "abstract" );
m_monitorStream = pa_stream_new_with_proplist( m_context, "tmix-peak", &spec, 0, props );
pa_proplist_free( props );
if ( m_monitorStream ) {
pa_stream_set_read_callback( m_monitorStream, monitorReadCb, this );
// For sink inputs, filter peak detection to just this stream.
if ( m_category == Playback )
pa_stream_set_monitor_stream( m_monitorStream, m_paIndex );
pa_buffer_attr attr;
memset( &attr, 0xff, sizeof(attr) );
attr.fragsize = sizeof(float);
pa_stream_connect_record( m_monitorStream,
m_monitorName.utf8().data(), &attr,
(pa_stream_flags_t)(PA_STREAM_PEAK_DETECT |
PA_STREAM_ADJUST_LATENCY |
PA_STREAM_DONT_MOVE) );
}
pa_threaded_mainloop_unlock( m_mainloop );
}
void PulseDevice::monitorReadCb( pa_stream *s, size_t /*nbytes*/, void *userdata )
{
PulseDevice *self = static_cast<PulseDevice*>(userdata);
const void *data = 0;
size_t len = 0;
if ( pa_stream_peek( s, &data, &len ) < 0 ) return;
float level = 0.0f;
if ( data && len >= sizeof(float) )
level = *static_cast<const float*>(data);
if ( level < 0.0f ) level = 0.0f;
if ( level > 1.0f ) level = 1.0f;
pa_stream_drop( s );
TQApplication::postEvent( self, new PALevelEvent(level) );
}
void PulseDevice::customEvent( TQCustomEvent *e )
{
if ( e->type() == PA_LEVEL_EVENT )
emit levelChanged( static_cast<PALevelEvent*>(e)->level );
}
void PulseDevice::adjustRecordingCount( int delta )
{
bool wasBefore = ( m_recordingCount > 0 );
m_recordingCount += delta;
if ( m_recordingCount < 0 ) m_recordingCount = 0;
bool isNow = ( m_recordingCount > 0 );
if ( isNow != wasBefore )
emit recordingActiveChanged( isNow );
}
// ---- helpers ----------------------------------------------------------------
static pa_volume_t percentToPA( int pct )
{
if ( pct <= 0 ) return 0;
if ( pct >= 100 ) return PA_VOLUME_NORM;
return (pa_volume_t)( (double)pct / 100.0 * PA_VOLUME_NORM + 0.5 );
}
static pa_cvolume buildCVolume( uint8_t channels, pa_volume_t vol, int pan )
{
pa_cvolume cv;
cv.channels = channels;
if ( channels >= 2 ) {
double lf = ( pan >= 0 ) ? ( 50.0 - pan ) / 50.0 : 1.0;
double rf = ( pan <= 0 ) ? ( 50.0 + pan ) / 50.0 : 1.0;
cv.values[0] = (pa_volume_t)( vol * lf );
cv.values[1] = (pa_volume_t)( vol * rf );
for ( uint8_t i = 2; i < channels; i++ )
cv.values[i] = vol;
} else {
pa_cvolume_set( &cv, channels, vol );
}
return cv;
}
// ---- write back to PA -------------------------------------------------------
void PulseDevice::setVolume( int v )
{
if ( !m_context ) return;
v = v < 0 ? 0 : v > 100 ? 100 : v;
m_volume = v;
emit volumeChanged( v );
pa_cvolume cv = buildCVolume( m_channels, percentToPA(v), m_pan );
pa_threaded_mainloop_lock( m_mainloop );
pa_operation *op = 0;
switch ( m_category ) {
case Output: op = pa_context_set_sink_volume_by_index( m_context, m_paIndex, &cv, 0, 0 ); break;
case Input: op = pa_context_set_source_volume_by_index( m_context, m_paIndex, &cv, 0, 0 ); break;
case Playback: op = pa_context_set_sink_input_volume( m_context, m_paIndex, &cv, 0, 0 ); break;
case Recording: op = pa_context_set_source_output_volume( m_context, m_paIndex, &cv, 0, 0 ); break;
}
if ( op ) pa_operation_unref( op );
pa_threaded_mainloop_unlock( m_mainloop );
}
void PulseDevice::setPan( int p )
{
if ( !m_context ) return;
p = p < -50 ? -50 : p > 50 ? 50 : p;
m_pan = p;
emit panChanged( p );
pa_cvolume cv = buildCVolume( m_channels, percentToPA(m_volume), p );
pa_threaded_mainloop_lock( m_mainloop );
pa_operation *op = 0;
switch ( m_category ) {
case Output: op = pa_context_set_sink_volume_by_index( m_context, m_paIndex, &cv, 0, 0 ); break;
case Input: op = pa_context_set_source_volume_by_index( m_context, m_paIndex, &cv, 0, 0 ); break;
case Playback: op = pa_context_set_sink_input_volume( m_context, m_paIndex, &cv, 0, 0 ); break;
case Recording: op = pa_context_set_source_output_volume( m_context, m_paIndex, &cv, 0, 0 ); break;
}
if ( op ) pa_operation_unref( op );
pa_threaded_mainloop_unlock( m_mainloop );
}
void PulseDevice::setMuted( bool m )
{
if ( !m_context ) return;
pa_threaded_mainloop_lock( m_mainloop );
pa_operation *op = 0;
int mute = m ? 1 : 0;
switch ( m_category ) {
case Output: op = pa_context_set_sink_mute_by_index( m_context, m_paIndex, mute, 0, 0 ); break;
case Input: op = pa_context_set_source_mute_by_index( m_context, m_paIndex, mute, 0, 0 ); break;
case Playback: op = pa_context_set_sink_input_mute( m_context, m_paIndex, mute, 0, 0 ); break;
case Recording: op = pa_context_set_source_output_mute( m_context, m_paIndex, mute, 0, 0 ); break;
}
if ( op ) pa_operation_unref( op );
pa_threaded_mainloop_unlock( m_mainloop );
}
TQWidget *PulseDevice::createWidget( TQWidget *parent )
{
return new DeviceWidget( this, m_model, parent );
}
#include "pulsedevice.moc"
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