Rename member variables in Portaudio Backend for consistency
authorTim Mayberry <mojofunk@gmail.com>
Mon, 30 Nov 2015 08:24:34 +0000 (18:24 +1000)
committerTim Mayberry <mojofunk@gmail.com>
Wed, 2 Dec 2015 00:24:07 +0000 (10:24 +1000)
libs/backends/portaudio/portaudio_backend.cc
libs/backends/portaudio/portaudio_backend.h

index a159d1a755cf454898df41656d46111bc2db0c40..56e5caf8a2344b6965d6014106a7eae45b9f3ab5 100644 (file)
@@ -71,9 +71,9 @@ PortAudioBackend::PortAudioBackend (AudioEngine& e, AudioBackendInfo& info)
        , _freewheel_ack (false)
        , _reinit_thread_callback (false)
        , _measure_latency (false)
-       , m_cycle_count(0)
-       , m_total_deviation_us(0)
-       , m_max_deviation_us(0)
+       , _cycle_count(0)
+       , _total_deviation_us(0)
+       , _max_deviation_us(0)
        , _input_audio_device("")
        , _output_audio_device("")
        , _midi_driver_option(get_standard_device_name(DeviceNone))
@@ -89,8 +89,8 @@ PortAudioBackend::PortAudioBackend (AudioEngine& e, AudioBackendInfo& info)
 {
        _instance_name = s_instance_name;
        pthread_mutex_init (&_port_callback_mutex, 0);
-       pthread_mutex_init (&m_freewheel_mutex, 0);
-       pthread_cond_init (&m_freewheel_signal, 0);
+       pthread_mutex_init (&_freewheel_mutex, 0);
+       pthread_cond_init (&_freewheel_signal, 0);
 
        _pcmio = new PortAudioIO ();
        _midiio = new WinMMEMidiIO ();
@@ -102,8 +102,8 @@ PortAudioBackend::~PortAudioBackend ()
        delete _midiio; _midiio = 0;
 
        pthread_mutex_destroy (&_port_callback_mutex);
-       pthread_mutex_destroy (&m_freewheel_mutex);
-       pthread_cond_destroy (&m_freewheel_signal);
+       pthread_mutex_destroy (&_freewheel_mutex);
+       pthread_cond_destroy (&_freewheel_signal);
 }
 
 /* AUDIOBACKEND API */
@@ -545,10 +545,10 @@ PortAudioBackend::_start (bool for_latency_measurement)
                _midiio->start(); // triggers port discovery, callback coremidi_rediscover()
        }
 
-       m_cycle_timer.set_samplerate(_samplerate);
-       m_cycle_timer.set_samples_per_cycle(_samples_per_period);
+       _cycle_timer.set_samplerate(_samplerate);
+       _cycle_timer.set_samples_per_cycle(_samples_per_period);
 
-       m_dsp_calc.set_max_time_us (m_cycle_timer.get_length_us());
+       _dsp_calc.set_max_time_us (_cycle_timer.get_length_us());
 
        DEBUG_MIDI ("Registering MIDI ports\n");
 
@@ -628,18 +628,18 @@ PortAudioBackend::process_callback(const float* input,
 {
        _active = true;
 
-       m_dsp_calc.set_start_timestamp_us (PBD::get_microseconds());
+       _dsp_calc.set_start_timestamp_us (PBD::get_microseconds());
 
        if (_run && _freewheel && !_freewheel_ack) {
                // acknowledge freewheeling; hand-over thread ID
-               pthread_mutex_lock (&m_freewheel_mutex);
+               pthread_mutex_lock (&_freewheel_mutex);
                if (_freewheel) {
                        DEBUG_AUDIO("Setting _freewheel_ack = true;\n");
                        _freewheel_ack = true;
                }
                DEBUG_AUDIO("Signalling freewheel thread\n");
-               pthread_cond_signal (&m_freewheel_signal);
-               pthread_mutex_unlock (&m_freewheel_mutex);
+               pthread_cond_signal (&_freewheel_signal);
+               pthread_mutex_unlock (&_freewheel_mutex);
        }
 
        if (statusFlags & paInputUnderflow ||
@@ -656,11 +656,11 @@ PortAudioBackend::process_callback(const float* input,
                return true;
        }
 
-       bool in_main_thread = pthread_equal(m_main_thread, pthread_self());
+       bool in_main_thread = pthread_equal(_main_thread, pthread_self());
 
        if (_reinit_thread_callback || !in_main_thread) {
                _reinit_thread_callback = false;
-               m_main_thread = pthread_self();
+               _main_thread = pthread_self();
                AudioEngine::thread_init_callback (this);
        }
 
@@ -751,15 +751,15 @@ static void* freewheel_thread(void* arg)
 bool
 PortAudioBackend::start_freewheel_process_thread ()
 {
-       if (pthread_create(&m_pthread_freewheel, NULL, freewheel_thread, this)) {
+       if (pthread_create(&_pthread_freewheel, NULL, freewheel_thread, this)) {
                DEBUG_AUDIO("Failed to create main audio thread\n");
                return false;
        }
 
        int timeout = 5000;
-       while (!m_freewheel_thread_active && --timeout > 0) { Glib::usleep (1000); }
+       while (!_freewheel_thread_active && --timeout > 0) { Glib::usleep (1000); }
 
-       if (timeout == 0 || !m_freewheel_thread_active) {
+       if (timeout == 0 || !_freewheel_thread_active) {
                DEBUG_AUDIO("Failed to start freewheel thread\n");
                return false;
        }
@@ -771,17 +771,17 @@ PortAudioBackend::stop_freewheel_process_thread ()
 {
        void *status;
 
-       if (!m_freewheel_thread_active) {
+       if (!_freewheel_thread_active) {
                return true;
        }
 
        DEBUG_AUDIO("Signaling freewheel thread to stop\n");
 
-       pthread_mutex_lock (&m_freewheel_mutex);
-       pthread_cond_signal (&m_freewheel_signal);
-       pthread_mutex_unlock (&m_freewheel_mutex);
+       pthread_mutex_lock (&_freewheel_mutex);
+       pthread_cond_signal (&_freewheel_signal);
+       pthread_mutex_unlock (&_freewheel_mutex);
 
-       if (pthread_join (m_pthread_freewheel, &status) != 0) {
+       if (pthread_join (_pthread_freewheel, &status) != 0) {
                DEBUG_AUDIO("Failed to stop freewheel thread\n");
                return false;
        }
@@ -792,11 +792,11 @@ PortAudioBackend::stop_freewheel_process_thread ()
 void*
 PortAudioBackend::freewheel_process_thread()
 {
-       m_freewheel_thread_active = true;
+       _freewheel_thread_active = true;
 
        bool first_run = false;
 
-       pthread_mutex_lock (&m_freewheel_mutex);
+       pthread_mutex_lock (&_freewheel_mutex);
 
        while(_run) {
                // check if we should run,
@@ -822,7 +822,7 @@ PortAudioBackend::freewheel_process_thread()
                        ts.tv_sec = tv.tv_sec + 3;
                        ts.tv_nsec = 0;
                        DEBUG_AUDIO("Waiting for freewheel change\n");
-                       pthread_cond_timedwait (&m_freewheel_signal, &m_freewheel_mutex, &ts);
+                       pthread_cond_timedwait (&_freewheel_signal, &_freewheel_mutex, &ts);
                        continue;
                }
 
@@ -830,7 +830,7 @@ PortAudioBackend::freewheel_process_thread()
                        // tell the engine we're ready to GO.
                        engine.freewheel_callback (_freewheeling);
                        first_run = false;
-                       m_main_thread = pthread_self();
+                       _main_thread = pthread_self();
                        AudioEngine::thread_init_callback (this);
                        _midiio->set_enabled(false);
                }
@@ -840,9 +840,9 @@ PortAudioBackend::freewheel_process_thread()
                }
        }
 
-       pthread_mutex_unlock (&m_freewheel_mutex);
+       pthread_mutex_unlock (&_freewheel_mutex);
 
-       m_freewheel_thread_active = false;
+       _freewheel_thread_active = false;
 
        if (_run) {
                // engine.process_callback() returner error
@@ -859,9 +859,9 @@ PortAudioBackend::freewheel (bool onoff)
        }
        _freewheeling = onoff;
 
-       if (0 == pthread_mutex_trylock (&m_freewheel_mutex)) {
-               pthread_cond_signal (&m_freewheel_signal);
-               pthread_mutex_unlock (&m_freewheel_mutex);
+       if (0 == pthread_mutex_trylock (&_freewheel_mutex)) {
+               pthread_cond_signal (&_freewheel_signal);
+               pthread_mutex_unlock (&_freewheel_mutex);
        }
        return 0;
 }
@@ -903,11 +903,11 @@ PortAudioBackend::samples_since_cycle_start ()
        if (!_active || !_run || _freewheeling || _freewheel) {
                return 0;
        }
-       if (!m_cycle_timer.valid()) {
+       if (!_cycle_timer.valid()) {
                return 0;
        }
 
-       return m_cycle_timer.samples_since_cycle_start (PBD::get_microseconds());
+       return _cycle_timer.samples_since_cycle_start (PBD::get_microseconds());
 }
 
 int
@@ -1037,7 +1037,7 @@ PortAudioBackend::in_process_thread ()
                return true;
        }
 #else
-       if (pthread_equal (m_main_thread, pthread_self()) != 0) {
+       if (pthread_equal (_main_thread, pthread_self()) != 0) {
                return true;
        }
 #endif
@@ -1758,7 +1758,7 @@ PortAudioBackend::blocking_process_main(const float* interleaved_input_data,
        int64_t min_elapsed_us = 1000000;
        int64_t max_elapsed_us = 0;
 
-       m_dsp_calc.set_start_timestamp_us (PBD::get_microseconds());
+       _dsp_calc.set_start_timestamp_us (PBD::get_microseconds());
 
        i = 0;
        /* Copy input audio data into input port buffers */
@@ -1783,28 +1783,28 @@ PortAudioBackend::blocking_process_main(const float* interleaved_input_data,
                       _samples_per_period * sizeof(Sample));
        }
 
-       m_last_cycle_start = m_cycle_timer.get_start();
-       m_cycle_timer.reset_start(PBD::get_microseconds());
-       m_cycle_count++;
+       _last_cycle_start = _cycle_timer.get_start();
+       _cycle_timer.reset_start(PBD::get_microseconds());
+       _cycle_count++;
 
-       uint64_t cycle_diff_us = (m_cycle_timer.get_start() - m_last_cycle_start);
-       int64_t deviation_us = (cycle_diff_us - m_cycle_timer.get_length_us());
-       m_total_deviation_us += ::llabs(deviation_us);
-       m_max_deviation_us =
-           std::max(m_max_deviation_us, (uint64_t)::llabs(deviation_us));
+       uint64_t cycle_diff_us = (_cycle_timer.get_start() - _last_cycle_start);
+       int64_t deviation_us = (cycle_diff_us - _cycle_timer.get_length_us());
+       _total_deviation_us += ::llabs(deviation_us);
+       _max_deviation_us =
+           std::max(_max_deviation_us, (uint64_t)::llabs(deviation_us));
 
-       if ((m_cycle_count % 1000) == 0) {
-               uint64_t mean_deviation_us = m_total_deviation_us / m_cycle_count;
+       if ((_cycle_count % 1000) == 0) {
+               uint64_t mean_deviation_us = _total_deviation_us / _cycle_count;
                DEBUG_TIMING(string_compose("Mean avg cycle deviation: %1(ms), max %2(ms)\n",
                                            mean_deviation_us * 1e-3,
-                                           m_max_deviation_us * 1e-3));
+                                           _max_deviation_us * 1e-3));
        }
 
-       if (::llabs(deviation_us) > m_cycle_timer.get_length_us()) {
+       if (::llabs(deviation_us) > _cycle_timer.get_length_us()) {
                DEBUG_TIMING(
                    string_compose("time between process(ms): %1, Est(ms): %2, Dev(ms): %3\n",
                                   cycle_diff_us * 1e-3,
-                                  m_cycle_timer.get_length_us() * 1e-3,
+                                  _cycle_timer.get_length_us() * 1e-3,
                                   deviation_us * 1e-3));
        }
 
@@ -1832,14 +1832,14 @@ PortAudioBackend::blocking_process_main(const float* interleaved_input_data,
        _processed_samples += _samples_per_period;
 
        /* calculate DSP load */
-       m_dsp_calc.set_stop_timestamp_us (PBD::get_microseconds());
-       _dsp_load = m_dsp_calc.get_dsp_load();
+       _dsp_calc.set_stop_timestamp_us (PBD::get_microseconds());
+       _dsp_load = _dsp_calc.get_dsp_load();
 
        DEBUG_TIMING(string_compose("DSP Load: %1\n", _dsp_load));
 
-       max_elapsed_us = std::max(m_dsp_calc.elapsed_time_us(), max_elapsed_us);
-       min_elapsed_us = std::min(m_dsp_calc.elapsed_time_us(), min_elapsed_us);
-       if ((m_cycle_count % 1000) == 0) {
+       max_elapsed_us = std::max(_dsp_calc.elapsed_time_us(), max_elapsed_us);
+       min_elapsed_us = std::min(_dsp_calc.elapsed_time_us(), min_elapsed_us);
+       if ((_cycle_count % 1000) == 0) {
                DEBUG_TIMING(string_compose("Elapsed process time(usecs) max: %1, min: %2\n",
                                            max_elapsed_us,
                                            min_elapsed_us));
@@ -1895,12 +1895,12 @@ PortAudioBackend::process_incoming_midi ()
                uint8_t data[256];
                size_t size = sizeof(data);
                while (_midiio->dequeue_input_event(i,
-                                                   m_cycle_timer.get_start(),
-                                                   m_cycle_timer.get_next_start(),
+                                                   _cycle_timer.get_start(),
+                                                   _cycle_timer.get_next_start(),
                                                    timestamp,
                                                    data,
                                                    size)) {
-                       sample_offset = m_cycle_timer.samples_since_cycle_start(timestamp);
+                       sample_offset = _cycle_timer.samples_since_cycle_start(timestamp);
                        midi_event_put(mbuf, sample_offset, data, size);
                        DEBUG_MIDI(string_compose("Dequeuing incoming MIDI data for device: %1 "
                                                  "sample_offset: %2 timestamp: %3, size: %4\n",
@@ -1933,7 +1933,7 @@ PortAudioBackend::process_outgoing_midi ()
                for (PortMidiBuffer::const_iterator mit = src->begin(); mit != src->end();
                     ++mit) {
                        uint64_t timestamp =
-                           m_cycle_timer.timestamp_from_sample_offset((*mit)->timestamp());
+                           _cycle_timer.timestamp_from_sample_offset((*mit)->timestamp());
                        DEBUG_MIDI(string_compose("Queuing outgoing MIDI data for device: "
                                                  "%1 sample_offset: %2 timestamp: %3, size: %4\n",
                                                  _midiio->get_outputs()[i]->name(),
index 92169be4e8146c10e33325cc7fb1755d216f7a6d..f0ef5fa9932df2a22b0d659176e3aba0e8d374e2 100644 (file)
@@ -368,19 +368,19 @@ class PortAudioBackend : public AudioBackend {
                bool  _reinit_thread_callback;
                bool  _measure_latency;
 
-               ARDOUR::DSPLoadCalculator m_dsp_calc;
+               ARDOUR::DSPLoadCalculator _dsp_calc;
 
-               bool m_freewheel_thread_active;
+               bool _freewheel_thread_active;
 
-               pthread_mutex_t m_freewheel_mutex;
-               pthread_cond_t m_freewheel_signal;
+               pthread_mutex_t _freewheel_mutex;
+               pthread_cond_t _freewheel_signal;
 
-               uint64_t m_cycle_count;
-               uint64_t m_total_deviation_us;
-               uint64_t m_max_deviation_us;
+               uint64_t _cycle_count;
+               uint64_t _total_deviation_us;
+               uint64_t _max_deviation_us;
 
-               CycleTimer m_cycle_timer;
-               uint64_t m_last_cycle_start;
+               CycleTimer _cycle_timer;
+               uint64_t _last_cycle_start;
 
                static std::vector<std::string> _midi_options;
                static std::vector<AudioBackend::DeviceStatus> _input_audio_device_status;
@@ -413,10 +413,10 @@ class PortAudioBackend : public AudioBackend {
                pthread_t _main_blocking_thread;
 
                /* main thread in callback mode(or fw thread when running) */
-               pthread_t m_main_thread;
+               pthread_t _main_thread;
 
                /* freewheel thread in callback mode */
-               pthread_t m_pthread_freewheel;
+               pthread_t _pthread_freewheel;
 
                /* process threads */
                static void* portaudio_process_thread (void *);