X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fbackends%2Fdummy%2Fdummy_audiobackend.cc;h=28d73d462ed16f214676a62f8341b110852dc56c;hb=8fff1f290a5d3f457b734721a7afc63d5f8b3205;hp=fa512d96bf65822be86eaae52cb39e9326e4130f;hpb=d991bb10cacc83792ae7fdc9fe3ce24cbffb42f1;p=ardour.git diff --git a/libs/backends/dummy/dummy_audiobackend.cc b/libs/backends/dummy/dummy_audiobackend.cc index fa512d96bf..28d73d462e 100644 --- a/libs/backends/dummy/dummy_audiobackend.cc +++ b/libs/backends/dummy/dummy_audiobackend.cc @@ -17,18 +17,24 @@ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ +#include #include #include #include #include +#ifdef PLATFORM_WINDOWS +#include +#include +#endif + #include "dummy_audiobackend.h" #include "dummy_midi_seq.h" #include "pbd/error.h" #include "ardour/port_manager.h" -#include "i18n.h" +#include "pbd/i18n.h" using namespace ARDOUR; @@ -37,10 +43,21 @@ size_t DummyAudioBackend::_max_buffer_size = 8192; std::vector DummyAudioBackend::_midi_options; std::vector DummyAudioBackend::_device_status; +std::vector DummyAudioBackend::_driver_speed; + +static int64_t _x_get_monotonic_usec() { +#ifdef PLATFORM_WINDOWS + return PBD::get_microseconds(); +#endif + return g_get_monotonic_time(); +} + DummyAudioBackend::DummyAudioBackend (AudioEngine& e, AudioBackendInfo& info) : AudioBackend (e, info) , _running (false) + , _freewheel (false) , _freewheeling (false) + , _speedup (1.0) , _device ("") , _samplerate (48000) , _samples_per_period (1024) @@ -49,7 +66,7 @@ DummyAudioBackend::DummyAudioBackend (AudioEngine& e, AudioBackendInfo& info) , _n_outputs (0) , _n_midi_inputs (0) , _n_midi_outputs (0) - , _enable_midi_generators (false) + , _midi_mode (MidiNoEvents) , _systemic_input_latency (0) , _systemic_output_latency (0) , _processed_samples (0) @@ -58,6 +75,18 @@ DummyAudioBackend::DummyAudioBackend (AudioEngine& e, AudioBackendInfo& info) _instance_name = s_instance_name; _device = _("Silence"); pthread_mutex_init (&_port_callback_mutex, 0); + + if (_driver_speed.empty()) { + _driver_speed.push_back (DriverSpeed (_("Half Speed"), 2.0f)); + _driver_speed.push_back (DriverSpeed (_("Normal Speed"), 1.0f)); + _driver_speed.push_back (DriverSpeed (_("Double Speed"), 0.5f)); + _driver_speed.push_back (DriverSpeed (_("5x Speed"), 0.2f)); + _driver_speed.push_back (DriverSpeed (_("10x Speed"), 0.1f)); + _driver_speed.push_back (DriverSpeed (_("15x Speed"), 0.06666f)); + _driver_speed.push_back (DriverSpeed (_("20x Speed"), 0.05f)); + _driver_speed.push_back (DriverSpeed (_("50x Speed"), 0.02f)); + } + } DummyAudioBackend::~DummyAudioBackend () @@ -70,7 +99,7 @@ DummyAudioBackend::~DummyAudioBackend () std::string DummyAudioBackend::name () const { - return X_("Dummy"); + return X_("Dummy"); // internal name } bool @@ -84,7 +113,10 @@ DummyAudioBackend::enumerate_devices () const { if (_device_status.empty()) { _device_status.push_back (DeviceStatus (_("Silence"), true)); + _device_status.push_back (DeviceStatus (_("DC -6dBFS (+.5)"), true)); + _device_status.push_back (DeviceStatus (_("Demolition"), true)); _device_status.push_back (DeviceStatus (_("Sine Wave"), true)); + _device_status.push_back (DeviceStatus (_("Sine Wave 1K, 1/3 Oct"), true)); _device_status.push_back (DeviceStatus (_("Square Wave"), true)); _device_status.push_back (DeviceStatus (_("Impulses"), true)); _device_status.push_back (DeviceStatus (_("Uniform White Noise"), true)); @@ -93,6 +125,8 @@ DummyAudioBackend::enumerate_devices () const _device_status.push_back (DeviceStatus (_("Pink Noise (low CPU)"), true)); _device_status.push_back (DeviceStatus (_("Sine Sweep"), true)); _device_status.push_back (DeviceStatus (_("Sine Sweep Swell"), true)); + _device_status.push_back (DeviceStatus (_("Square Sweep"), true)); + _device_status.push_back (DeviceStatus (_("Square Sweep Swell"), true)); _device_status.push_back (DeviceStatus (_("Loopback"), true)); } return _device_status; @@ -157,6 +191,41 @@ DummyAudioBackend::can_change_buffer_size_when_running () const return true; } +std::vector +DummyAudioBackend::enumerate_drivers () const +{ + std::vector speed_drivers; + for (std::vector::const_iterator it = _driver_speed.begin () ; it != _driver_speed.end (); ++it) { + speed_drivers.push_back (it->name); + } + return speed_drivers; +} + +std::string +DummyAudioBackend::driver_name () const +{ + for (std::vector::const_iterator it = _driver_speed.begin () ; it != _driver_speed.end (); ++it) { + if (rintf (1e6f * _speedup) == rintf (1e6f * it->speedup)) { + return it->name; + } + } + assert (0); + return _("Normal Speed"); +} + +int +DummyAudioBackend::set_driver (const std::string& d) +{ + for (std::vector::const_iterator it = _driver_speed.begin () ; it != _driver_speed.end (); ++it) { + if (d == it->name) { + _speedup = it->speedup; + return 0; + } + } + assert (0); + return -1; +} + int DummyAudioBackend::set_device_name (const std::string& d) { @@ -176,7 +245,7 @@ DummyAudioBackend::set_sample_rate (float sr) int DummyAudioBackend::set_buffer_size (uint32_t bs) { - if (bs <= 0 || bs >= _max_buffer_size) { + if (bs <= 0 || bs > _max_buffer_size) { return -1; } _samples_per_period = bs; @@ -185,10 +254,8 @@ DummyAudioBackend::set_buffer_size (uint32_t bs) * with 'Loopback' there is exactly once cycle latency, * divide it between In + Out; */ - const size_t l_in = _samples_per_period * .25; - const size_t l_out = _samples_per_period - l_in; LatencyRange lr; - lr.min = lr.max = l_in + _systemic_input_latency; + lr.min = lr.max = _systemic_input_latency; for (std::vector::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it) { set_latency_range (*it, false, lr); } @@ -196,7 +263,7 @@ DummyAudioBackend::set_buffer_size (uint32_t bs) set_latency_range (*it, false, lr); } - lr.min = lr.max = l_out + _systemic_output_latency; + lr.min = lr.max = _systemic_output_latency; for (std::vector::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it) { set_latency_range (*it, true, lr); } @@ -298,11 +365,13 @@ std::vector DummyAudioBackend::enumerate_midi_options () const { if (_midi_options.empty()) { - _midi_options.push_back (_("No MIDI I/O")); _midi_options.push_back (_("1 in, 1 out, Silence")); _midi_options.push_back (_("2 in, 2 out, Silence")); _midi_options.push_back (_("8 in, 8 out, Silence")); _midi_options.push_back (_("Midi Event Generators")); + _midi_options.push_back (_("8 in, 8 out, Loopback")); + _midi_options.push_back (_("MIDI to Audio, Loopback")); + _midi_options.push_back (_("No MIDI I/O")); } return _midi_options; } @@ -310,7 +379,7 @@ DummyAudioBackend::enumerate_midi_options () const int DummyAudioBackend::set_midi_option (const std::string& opt) { - _enable_midi_generators = false; + _midi_mode = MidiNoEvents; if (opt == _("1 in, 1 out, Silence")) { _n_midi_inputs = _n_midi_outputs = 1; } @@ -322,7 +391,15 @@ DummyAudioBackend::set_midi_option (const std::string& opt) } else if (opt == _("Midi Event Generators")) { _n_midi_inputs = _n_midi_outputs = NUM_MIDI_EVENT_GENERATORS; - _enable_midi_generators = true; + _midi_mode = MidiGenerator; + } + else if (opt == _("8 in, 8 out, Loopback")) { + _n_midi_inputs = _n_midi_outputs = 8; + _midi_mode = MidiLoopback; + } + else if (opt == _("MIDI to Audio, Loopback")) { + _n_midi_inputs = _n_midi_outputs = UINT32_MAX; + _midi_mode = MidiToAudio; } else { _n_midi_inputs = _n_midi_outputs = 0; @@ -351,33 +428,39 @@ DummyAudioBackend::_start (bool /*for_latency_measurement*/) { if (_running) { PBD::error << _("DummyAudioBackend: already active.") << endmsg; - return -1; + return BackendReinitializationError; } - if (_ports.size()) { + if (_ports.size () || _portmap.size ()) { PBD::warning << _("DummyAudioBackend: recovering from unclean shutdown, port registry is not empty.") << endmsg; - for (std::vector::const_iterator it = _ports.begin (); it != _ports.end (); ++it) { + for (PortIndex::const_iterator it = _ports.begin (); it != _ports.end (); ++it) { PBD::info << _("DummyAudioBackend: port '") << (*it)->name () << "' exists." << endmsg; } + for (PortMap::const_iterator it = _portmap.begin (); it != _portmap.end (); ++it) { + PBD::info << _("DummyAudioBackend: portmap '") << (*it).first << "' exists." << endmsg; + } _system_inputs.clear(); _system_outputs.clear(); _system_midi_in.clear(); _system_midi_out.clear(); _ports.clear(); + _portmap.clear(); } if (register_system_ports()) { PBD::error << _("DummyAudioBackend: failed to register system ports.") << endmsg; - return -1; + return PortRegistrationError; } engine.sample_rate_change (_samplerate); engine.buffer_size_change (_samples_per_period); + _dsp_load_calc.set_max_time (_samplerate, _samples_per_period); + if (engine.reestablish_ports ()) { PBD::error << _("DummyAudioBackend: Could not re-establish ports.") << endmsg; stop (); - return -1; + return PortReconnectError; } engine.reconnect_ports (); @@ -392,10 +475,10 @@ DummyAudioBackend::_start (bool /*for_latency_measurement*/) if (timeout == 0 || !_running) { PBD::error << _("DummyAudioBackend: failed to start process thread.") << endmsg; - return -1; + return ProcessThreadStartError; } - return 0; + return NoError; } int @@ -418,11 +501,7 @@ DummyAudioBackend::stop () int DummyAudioBackend::freewheel (bool onoff) { - if (onoff == _freewheeling) { - return 0; - } _freewheeling = onoff; - engine.freewheel_callback (onoff); return 0; } @@ -445,13 +524,13 @@ DummyAudioBackend::raw_buffer_size (DataType t) } /* Process time */ -pframes_t +framepos_t DummyAudioBackend::sample_time () { return _processed_samples; } -pframes_t +framepos_t DummyAudioBackend::sample_time_at_cycle_start () { return _processed_samples; @@ -571,11 +650,22 @@ DummyAudioBackend::port_name_size () const int DummyAudioBackend::set_port_name (PortEngine::PortHandle port, const std::string& name) { + std::string newname (_instance_name + ":" + name); + if (!valid_port (port)) { PBD::error << _("DummyBackend::set_port_name: Invalid Port(s)") << endmsg; return -1; } - return static_cast(port)->set_name (_instance_name + ":" + name); + + if (find_port (newname)) { + PBD::error << _("DummyBackend::set_port_name: Port with given name already exists") << endmsg; + return -1; + } + + DummyPort* p = static_cast(port); + _portmap.erase (p->name()); + _portmap.insert (make_pair (newname, p)); + return p->set_name (newname); } std::string @@ -588,6 +678,37 @@ DummyAudioBackend::get_port_name (PortEngine::PortHandle port) const return static_cast(port)->name (); } +int +DummyAudioBackend::get_port_property (PortHandle port, const std::string& key, std::string& value, std::string& type) const +{ + if (!valid_port (port)) { + PBD::warning << _("DummyBackend::get_port_property: Invalid Port(s)") << endmsg; + return -1; + } + if (key == "http://jackaudio.org/metadata/pretty-name") { + type = ""; + value = static_cast(port)->pretty_name (); + if (!value.empty()) { + return 0; + } + } + return -1; +} + +int +DummyAudioBackend::set_port_property (PortHandle port, const std::string& key, const std::string& value, const std::string& type) +{ + if (!valid_port (port)) { + PBD::warning << _("DummyBackend::set_port_property: Invalid Port(s)") << endmsg; + return -1; + } + if (key == "http://jackaudio.org/metadata/pretty-name" && type.empty ()) { + static_cast(port)->set_pretty_name (value); + return 0; + } + return -1; +} + PortEngine::PortHandle DummyAudioBackend::get_port_by_name (const std::string& name) const { @@ -609,9 +730,10 @@ DummyAudioBackend::get_ports ( use_regexp = true; } } - for (size_t i = 0; i < _ports.size (); ++i) { - DummyPort* port = _ports[i]; - if ((port->type () == type) && (port->flags () & flags)) { + + for (PortIndex::const_iterator i = _ports.begin (); i != _ports.end (); ++i) { + DummyPort* port = *i; + if ((port->type () == type) && flags == (port->flags () & flags)) { if (!use_regexp || !regexec (&port_regex, port->name ().c_str (), 0, NULL, 0)) { port_names.push_back (port->name ()); ++rv; @@ -672,7 +794,8 @@ DummyAudioBackend::add_port ( return 0; } - _ports.push_back (port); + _ports.insert (port); + _portmap.insert (make_pair (name, port)); return port; } @@ -686,12 +809,13 @@ DummyAudioBackend::unregister_port (PortEngine::PortHandle port_handle) return; } DummyPort* port = static_cast(port_handle); - std::vector::iterator i = std::find (_ports.begin (), _ports.end (), static_cast(port_handle)); + PortIndex::iterator i = std::find (_ports.begin(), _ports.end(), static_cast(port_handle)); if (i == _ports.end ()) { PBD::error << _("DummyBackend::unregister_port: Failed to find port") << endmsg; return; } disconnect_all(port_handle); + _portmap.erase (port->name()); _ports.erase (i); delete port; } @@ -711,6 +835,8 @@ DummyAudioBackend::register_system_ports() gt = DummyAudioPort::PonyNoise; } else if (_device == _("Sine Wave")) { gt = DummyAudioPort::SineWave; + } else if (_device == _("Sine Wave 1K, 1/3 Oct")) { + gt = DummyAudioPort::SineWaveOctaves; } else if (_device == _("Square Wave")) { gt = DummyAudioPort::SquareWave; } else if (_device == _("Impulses")) { @@ -719,23 +845,32 @@ DummyAudioBackend::register_system_ports() gt = DummyAudioPort::SineSweep; } else if (_device == _("Sine Sweep Swell")) { gt = DummyAudioPort::SineSweepSwell; + } else if (_device == _("Square Sweep")) { + gt = DummyAudioPort::SquareSweep; + } else if (_device == _("Square Sweep Swell")) { + gt = DummyAudioPort::SquareSweepSwell; } else if (_device == _("Loopback")) { gt = DummyAudioPort::Loopback; + } else if (_device == _("Demolition")) { + gt = DummyAudioPort::Demolition; + } else if (_device == _("DC -6dBFS (+.5)")) { + gt = DummyAudioPort::DC05; } else { gt = DummyAudioPort::Silence; } + if (_midi_mode == MidiToAudio) { + gt = DummyAudioPort::Loopback; + } + const int a_ins = _n_inputs > 0 ? _n_inputs : 8; const int a_out = _n_outputs > 0 ? _n_outputs : 8; - const int m_ins = _n_midi_inputs; - const int m_out = _n_midi_outputs; + const int m_ins = _n_midi_inputs == UINT_MAX ? 0 : _n_midi_inputs; + const int m_out = _n_midi_outputs == UINT_MAX ? a_ins : _n_midi_outputs; - /* with 'Loopback' there is exactly once cycle latency, divide it between In + Out; */ - const size_t l_in = _samples_per_period * .25; - const size_t l_out = _samples_per_period - l_in; /* audio ports */ - lr.min = lr.max = l_in + _systemic_input_latency; + lr.min = lr.max = _systemic_input_latency; for (int i = 1; i <= a_ins; ++i) { char tmp[64]; snprintf(tmp, sizeof(tmp), "system:capture_%d", i); @@ -743,10 +878,13 @@ DummyAudioBackend::register_system_ports() if (!p) return -1; set_latency_range (p, false, lr); _system_inputs.push_back (static_cast(p)); - static_cast(p)->setup_generator (gt, _samplerate); + std::string name = static_cast(p)->setup_generator (gt, _samplerate, i - 1, a_ins); + if (!name.empty ()) { + static_cast(p)->set_pretty_name (name); + } } - lr.min = lr.max = l_out + _systemic_output_latency; + lr.min = lr.max = _systemic_output_latency; for (int i = 1; i <= a_out; ++i) { char tmp[64]; snprintf(tmp, sizeof(tmp), "system:playback_%d", i); @@ -757,20 +895,23 @@ DummyAudioBackend::register_system_ports() } /* midi ports */ - lr.min = lr.max = l_in + _systemic_input_latency; - for (int i = 1; i <= m_ins; ++i) { + lr.min = lr.max = _systemic_input_latency; + for (int i = 0; i < m_ins; ++i) { char tmp[64]; - snprintf(tmp, sizeof(tmp), "system:midi_capture_%d", i); + snprintf(tmp, sizeof(tmp), "system:midi_capture_%d", i+1); PortHandle p = add_port(std::string(tmp), DataType::MIDI, static_cast(IsOutput | IsPhysical | IsTerminal)); if (!p) return -1; set_latency_range (p, false, lr); _system_midi_in.push_back (static_cast(p)); - if (_enable_midi_generators) { - static_cast(p)->setup_generator (i % NUM_MIDI_EVENT_GENERATORS, _samplerate); + if (_midi_mode == MidiGenerator) { + std::string name = static_cast(p)->setup_generator (i % NUM_MIDI_EVENT_GENERATORS, _samplerate); + if (!name.empty ()) { + static_cast(p)->set_pretty_name (name); + } } } - lr.min = lr.max = l_out + _systemic_output_latency; + lr.min = lr.max = _systemic_output_latency; for (int i = 1; i <= m_out; ++i) { char tmp[64]; snprintf(tmp, sizeof(tmp), "system:midi_playback_%d", i); @@ -778,6 +919,17 @@ DummyAudioBackend::register_system_ports() if (!p) return -1; set_latency_range (p, true, lr); _system_midi_out.push_back (static_cast(p)); + + if (_device == _("Loopback") && _midi_mode == MidiToAudio) { + std::stringstream ss; + ss << "Midi2Audio"; + for (int apc = 0; apc < (int)_system_inputs.size(); ++apc) { + if ((apc % m_out) + 1 == i) { + ss << " >" << (apc + 1); + } + } + static_cast(p)->set_pretty_name (ss.str()); + } } return 0; } @@ -785,19 +937,19 @@ DummyAudioBackend::register_system_ports() void DummyAudioBackend::unregister_ports (bool system_only) { - size_t i = 0; _system_inputs.clear(); _system_outputs.clear(); _system_midi_in.clear(); _system_midi_out.clear(); - while (i < _ports.size ()) { - DummyPort* port = _ports[i]; + + for (PortIndex::iterator i = _ports.begin (); i != _ports.end ();) { + PortIndex::iterator cur = i++; + DummyPort* port = *cur; if (! system_only || (port->is_physical () && port->is_terminal ())) { port->disconnect_all (); + _portmap.erase (port->name()); delete port; - _ports.erase (_ports.begin() + i); - } else { - ++i; + _ports.erase (cur); } } } @@ -886,10 +1038,12 @@ bool DummyAudioBackend::connected_to (PortEngine::PortHandle src, const std::string& dst, bool /*process_callback_safe*/) { DummyPort* dst_port = find_port (dst); +#ifndef NDEBUG if (!valid_port (src) || !dst_port) { PBD::error << _("DummyBackend::connected_to: Invalid Port") << endmsg; return false; } +#endif return static_cast(src)->is_connected (dst_port); } @@ -913,9 +1067,9 @@ DummyAudioBackend::get_connections (PortEngine::PortHandle port, std::vector& connected_ports = static_cast(port)->get_connections (); + const std::set& connected_ports = static_cast(port)->get_connections (); - for (std::vector::const_iterator i = connected_ports.begin (); i != connected_ports.end (); ++i) { + for (std::set::const_iterator i = connected_ports.begin (); i != connected_ports.end (); ++i) { names.push_back ((*i)->name ()); } @@ -951,10 +1105,17 @@ DummyAudioBackend::midi_event_put ( assert (buffer && port_buffer); DummyMidiBuffer& dst = * static_cast(port_buffer); if (dst.size () && (pframes_t)dst.back ()->timestamp () > timestamp) { - fprintf (stderr, "DummyMidiBuffer: it's too late for this event.\n"); - return -1; + // nevermind, ::get_buffer() sorts events, but always print warning + fprintf (stderr, "DummyMidiBuffer: it's too late for this event %d > %d.\n", (pframes_t)dst.back ()->timestamp (), timestamp); } dst.push_back (boost::shared_ptr(new DummyMidiEvent (timestamp, buffer, size))); +#if 0 // DEBUG MIDI EVENTS + printf("DummyAudioBackend::midi_event_put %d, %zu: ", timestamp, size); + for (size_t xx = 0; xx < size; ++xx) { + printf(" %02x", buffer[xx]); + } + printf("\n"); +#endif return 0; } @@ -1014,14 +1175,32 @@ DummyAudioBackend::set_latency_range (PortEngine::PortHandle port, bool for_play LatencyRange DummyAudioBackend::get_latency_range (PortEngine::PortHandle port, bool for_playback) { + LatencyRange r; if (!valid_port (port)) { PBD::error << _("DummyPort::get_latency_range (): invalid port.") << endmsg; - LatencyRange r; r.min = 0; r.max = 0; return r; } - return static_cast(port)->latency_range (for_playback); + DummyPort *p = static_cast(port); + assert(p); + + r = p->latency_range (for_playback); + if (p->is_physical() && p->is_terminal()) { + if (p->is_input() && for_playback) { + const size_t l_in = _samples_per_period * .25; + r.min += l_in; + r.max += l_in; + } + if (p->is_output() && !for_playback) { + /* with 'Loopback' there is exactly once cycle latency, divide it between In + Out; */ + const size_t l_in = _samples_per_period * .25; + const size_t l_out = _samples_per_period - l_in; + r.min += l_out; + r.max += l_out; + } + } + return r; } /* Discovering physical ports */ @@ -1039,8 +1218,8 @@ DummyAudioBackend::port_is_physical (PortEngine::PortHandle port) const void DummyAudioBackend::get_physical_outputs (DataType type, std::vector& port_names) { - for (size_t i = 0; i < _ports.size (); ++i) { - DummyPort* port = _ports[i]; + for (PortIndex::iterator i = _ports.begin (); i != _ports.end (); ++i) { + DummyPort* port = *i; if ((port->type () == type) && port->is_input () && port->is_physical ()) { port_names.push_back (port->name ()); } @@ -1050,8 +1229,8 @@ DummyAudioBackend::get_physical_outputs (DataType type, std::vector void DummyAudioBackend::get_physical_inputs (DataType type, std::vector& port_names) { - for (size_t i = 0; i < _ports.size (); ++i) { - DummyPort* port = _ports[i]; + for (PortIndex::iterator i = _ports.begin (); i != _ports.end (); ++i) { + DummyPort* port = *i; if ((port->type () == type) && port->is_output () && port->is_physical ()) { port_names.push_back (port->name ()); } @@ -1063,8 +1242,8 @@ DummyAudioBackend::n_physical_outputs () const { int n_midi = 0; int n_audio = 0; - for (size_t i = 0; i < _ports.size (); ++i) { - DummyPort* port = _ports[i]; + for (PortIndex::const_iterator i = _ports.begin (); i != _ports.end (); ++i) { + DummyPort* port = *i; if (port->is_output () && port->is_physical ()) { switch (port->type ()) { case DataType::AUDIO: ++n_audio; break; @@ -1084,8 +1263,8 @@ DummyAudioBackend::n_physical_inputs () const { int n_midi = 0; int n_audio = 0; - for (size_t i = 0; i < _ports.size (); ++i) { - DummyPort* port = _ports[i]; + for (PortIndex::const_iterator i = _ports.begin (); i != _ports.end (); ++i) { + DummyPort* port = *i; if (port->is_input () && port->is_physical ()) { switch (port->type ()) { case DataType::AUDIO: ++n_audio; break; @@ -1121,10 +1300,15 @@ DummyAudioBackend::main_process_thread () manager.registration_callback(); manager.graph_order_callback(); - uint64_t clock1, clock2; - clock1 = g_get_monotonic_time(); + int64_t clock1; + clock1 = -1; while (_running) { + if (_freewheeling != _freewheel) { + _freewheel = _freewheeling; + engine.freewheel_callback (_freewheel); + } + // re-set input buffers, generate on demand. for (std::vector::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it) { (*it)->next_period(); @@ -1138,23 +1322,44 @@ DummyAudioBackend::main_process_thread () } _processed_samples += _samples_per_period; - if (_device == _("Loopback")) { + if (_device == _("Loopback") && _midi_mode != MidiToAudio) { int opn = 0; int opc = _system_outputs.size(); for (std::vector::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it, ++opn) { DummyAudioPort* op = _system_outputs[(opn % opc)]; (*it)->fill_wavetable ((const float*)op->get_buffer (_samples_per_period), _samples_per_period); } + } + if (_midi_mode == MidiLoopback) { + int opn = 0; + int opc = _system_midi_out.size(); + for (std::vector::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it, ++opn) { + DummyMidiPort* op = _system_midi_out[(opn % opc)]; + op->get_buffer(0); // mix-down + (*it)->set_loopback (op->const_buffer()); + } + } + else if (_midi_mode == MidiToAudio) { + int opn = 0; + int opc = _system_midi_out.size(); + for (std::vector::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it, ++opn) { + DummyMidiPort* op = _system_midi_out[(opn % opc)]; + op->get_buffer(0); // mix-down + (*it)->midi_to_wavetable (op->const_buffer(), _samples_per_period); + } } - if (!_freewheeling) { - clock2 = g_get_monotonic_time(); - const int64_t elapsed_time = clock2 - clock1; - const int64_t nomial_time = 1e6 * _samples_per_period / _samplerate; - _dsp_load = elapsed_time / (float) nomial_time; - if (elapsed_time < nomial_time) { - Glib::usleep (nomial_time - elapsed_time); + if (!_freewheel) { + _dsp_load_calc.set_start_timestamp_us (clock1); + _dsp_load_calc.set_stop_timestamp_us (_x_get_monotonic_usec()); + _dsp_load = _dsp_load_calc.get_dsp_load_unbound (); + + const int64_t elapsed_time = _dsp_load_calc.elapsed_time_us (); + const int64_t nominal_time = _dsp_load_calc.get_max_time_us (); + if (elapsed_time < nominal_time) { + const int64_t sleepy = _speedup * (nominal_time - elapsed_time); + Glib::usleep (std::max ((int64_t) 100, sleepy)); } else { Glib::usleep (100); // don't hog cpu } @@ -1162,7 +1367,9 @@ DummyAudioBackend::main_process_thread () _dsp_load = 1.0f; Glib::usleep (100); // don't hog cpu } - clock1 = g_get_monotonic_time(); + + /* beginning of next cycle */ + clock1 = _x_get_monotonic_usec(); bool connections_changed = false; bool ports_changed = false; @@ -1210,7 +1417,7 @@ static bool already_configured (); static bool available (); static ARDOUR::AudioBackendInfo _descriptor = { - "Dummy", + _("None (Dummy)"), instantiate, deinstantiate, backend_factory, @@ -1244,6 +1451,10 @@ deinstantiate () static bool already_configured () { + // special-case: unit-tests require backend to be pre-configured. + if (s_instance_name == "Unit-Test") { + return true; + } return false; } @@ -1323,7 +1534,7 @@ int DummyPort::connect (DummyPort *port) void DummyPort::_connect (DummyPort *port, bool callback) { - _connections.push_back (port); + _connections.insert (port); if (callback) { port->_connect (this, false); _dummy_backend.port_connect_callback (name(), port->name(), true); @@ -1349,12 +1560,9 @@ int DummyPort::disconnect (DummyPort *port) void DummyPort::_disconnect (DummyPort *port, bool callback) { - std::vector::iterator it = std::find (_connections.begin (), _connections.end (), port); - + std::set::iterator it = _connections.find (port); assert (it != _connections.end ()); - _connections.erase (it); - if (callback) { port->_disconnect (this, false); _dummy_backend.port_connect_callback (name(), port->name(), false); @@ -1365,21 +1573,22 @@ void DummyPort::_disconnect (DummyPort *port, bool callback) void DummyPort::disconnect_all () { while (!_connections.empty ()) { - _connections.back ()->_disconnect (this, false); - _dummy_backend.port_connect_callback (name(), _connections.back ()->name(), false); - _connections.pop_back (); + std::set::iterator it = _connections.begin (); + (*it)->_disconnect (this, false); + _dummy_backend.port_connect_callback (name(), (*it)->name(), false); + _connections.erase (it); } } bool DummyPort::is_connected (const DummyPort *port) const { - return std::find (_connections.begin (), _connections.end (), port) != _connections.end (); + return _connections.find (const_cast(port)) != _connections.end (); } bool DummyPort::is_physically_connected () const { - for (std::vector::const_iterator it = _connections.begin (); it != _connections.end (); ++it) { + for (std::set::const_iterator it = _connections.begin (); it != _connections.end (); ++it) { if ((*it)->is_physical ()) { return true; } @@ -1389,7 +1598,17 @@ bool DummyPort::is_physically_connected () const void DummyPort::setup_random_number_generator () { +#ifdef PLATFORM_WINDOWS + LARGE_INTEGER Count; + if (QueryPerformanceCounter (&Count)) { + _rseed = Count.QuadPart % UINT_MAX; + } else +#endif + { _rseed = g_get_monotonic_time() % UINT_MAX; + } + _rseed = (_rseed + (uint64_t)this) % UINT_MAX; + if (_rseed == 0) _rseed = 1; } inline uint32_t @@ -1445,8 +1664,42 @@ DummyAudioPort::~DummyAudioPort () { _wavetable = 0; } -void DummyAudioPort::setup_generator (GeneratorType const g, float const samplerate) +static std::string format_hz (float freq) { + std::stringstream ss; + if (freq >= 10000) { + ss << std::setprecision (1) << std::fixed << freq / 1000 << "kHz"; + } else if (freq >= 1000) { + ss << std::setprecision (2) << std::fixed << freq / 1000 << "kHz"; + } else { + ss << std::setprecision (1) << std::fixed << freq << "Hz"; + } + return ss.str (); +} + +static size_t fit_wave (float freq, float rate, float precision = 0.001) { + const size_t max_mult = floor (freq * rate); + float minErr = 2; + size_t fact = 1; + for (size_t i = 1; i < max_mult; ++i) { + const float isc = rate * (float)i / freq; // ideal sample count + const float rsc = rintf (isc); // rounded sample count + const float err = fabsf (isc - rsc); + if (err < minErr) { + minErr = err; + fact = i; + } + if (err < precision) { + break; + } + } + //printf(" FIT %8.1f Hz / %8.1f Hz * %ld = %.0f (err: %e)\n", freq, rate, fact, fact * rate / freq, minErr); + return fact; +} + +std::string +DummyAudioPort::setup_generator (GeneratorType const g, float const samplerate, int c, int total) { + std::string name; DummyPort::setup_random_number_generator(); _gen_type = g; @@ -1455,21 +1708,44 @@ void DummyAudioPort::setup_generator (GeneratorType const g, float const sampler case PonyNoise: case UniformWhiteNoise: case GaussianWhiteNoise: + case DC05: case Silence: break; + case Demolition: + _gen_period = 3 * samplerate; + break; case KronekerDelta: _gen_period = (5 + randi() % (int)(samplerate / 20.f)); + name = "Delta " + format_hz (samplerate / _gen_period); break; case SquareWave: _gen_period = (5 + randi() % (int)(samplerate / 20.f)) & ~1; + name = "Square " + format_hz (samplerate / _gen_period); + break; + case SineWaveOctaves: + { + const int x = c - floor (((float)total / 2)); + float f = powf (2.f, x / 3.f) * 1000.f; + f = std::max (10.f, std::min (samplerate *.5f, f)); + const size_t mult = fit_wave (f, samplerate); + _gen_period = rintf ((float)mult * samplerate / f); + name = "Sine " + format_hz (samplerate * mult / (float)_gen_period); + _wavetable = (Sample*) malloc (_gen_period * sizeof(Sample)); + for (uint32_t i = 0 ; i < _gen_period; ++i) { + _wavetable[i] = .12589f * sinf(2.0f * M_PI * (float)mult * (float)i / (float)(_gen_period)); // -18dBFS + } + } break; case SineWave: _gen_period = 5 + randi() % (int)(samplerate / 20.f); + name = "Sine " + format_hz (samplerate / _gen_period); _wavetable = (Sample*) malloc (_gen_period * sizeof(Sample)); for (uint32_t i = 0 ; i < _gen_period; ++i) { _wavetable[i] = .12589f * sinf(2.0f * M_PI * (float)i / (float)_gen_period); // -18dBFS } break; + case SquareSweep: + case SquareSweepSwell: case SineSweep: case SineSweepSwell: { @@ -1486,8 +1762,9 @@ void DummyAudioPort::setup_generator (GeneratorType const g, float const sampler const double b = log (f_max / f_min) / g_p2; const double a = f_min / (b * samplerate); #endif + const uint32_t g_p2i = rint(g_p2); _wavetable = (Sample*) malloc (_gen_period * sizeof(Sample)); - for (uint32_t i = 0 ; i < g_p2; ++i) { + for (uint32_t i = 0 ; i < g_p2i; ++i) { #ifdef LINEAR_SWEEP const double phase = i * (a + b * i); #else @@ -1495,14 +1772,24 @@ void DummyAudioPort::setup_generator (GeneratorType const g, float const sampler #endif _wavetable[i] = (float)sin (2. * M_PI * (phase - floor (phase))); } - for (uint32_t i = g_p2; i < _gen_period; ++i) { + for (uint32_t i = g_p2i; i < _gen_period; ++i) { const uint32_t j = _gen_period - i; #ifdef LINEAR_SWEEP const double phase = j * (a + b * j); #else const double phase = a * exp (b * j) - a; #endif - _wavetable[i] = (float)sin (2. * M_PI * (phase - floor (phase))); + _wavetable[i] = -(float)sin (2. * M_PI * (phase - floor (phase))); + } + if (_gen_type == SquareSweep) { + for (uint32_t i = 0 ; i < _gen_period; ++i) { + _wavetable[i] = _wavetable[i] < 0 ? -.40709f : .40709f; + } + } + else if (_gen_type == SquareSweepSwell) { + for (uint32_t i = 0 ; i < _gen_period; ++i) { + _wavetable[i] = _wavetable[i] < 0 ? -1 : 1; + } } } break; @@ -1510,6 +1797,35 @@ void DummyAudioPort::setup_generator (GeneratorType const g, float const sampler _wavetable = (Sample*) malloc (DummyAudioBackend::max_buffer_size() * sizeof(Sample)); break; } + return name; +} + +void DummyAudioPort::midi_to_wavetable (DummyMidiBuffer const * const src, size_t n_samples) +{ + memset(_wavetable, 0, n_samples * sizeof(float)); + /* generate an audio spike for every midi message + * to verify layency-compensation alignment + * (here: midi-out playback-latency + audio-in capture-latency) + */ + for (DummyMidiBuffer::const_iterator it = src->begin (); it != src->end (); ++it) { + const pframes_t t = (*it)->timestamp(); + assert(t < n_samples); + // somewhat arbitrary mapping for quick visual feedback + float v = -.5f; + if ((*it)->size() == 3) { + const unsigned char *d = (*it)->const_data(); + if ((d[0] & 0xf0) == 0x90) { // note on + v = .25f + d[2] / 512.f; + } + else if ((d[0] & 0xf0) == 0x80) { // note off + v = .3f - d[2] / 640.f; + } + else if ((d[0] & 0xf0) == 0xb0) { // CC + v = -.1f - d[2] / 256.f; + } + } + _wavetable[t] += v; + } } float DummyAudioPort::grandf () @@ -1536,6 +1852,23 @@ float DummyAudioPort::grandf () return r * x1; } +/* inspired by jack-demolition by Steve Harris */ +static const float _demolition[] = { + 0.0f, /* special case - 0dbFS white noise */ + 0.0f, /* zero, may cause denomrals following a signal */ + 0.73 / 1e45, /* very small - should be denormal when floated */ + 3.7f, /* arbitrary number > 0dBFS */ + -4.3f, /* arbitrary negative number > 0dBFS */ + 4294967395.0f, /* 2^16 + 100 */ + -4294967395.0f, + HUGE, /* Big, non-inf number */ + INFINITY, /* +inf */ + -INFINITY, /* -inf */ + -NAN, /* -nan */ + NAN, /* nan */ + 0.0f, /* some silence to check for recovery */ +}; + void DummyAudioPort::generate (const pframes_t n_samples) { Glib::Threads::Mutex::Lock lm (generator_lock); @@ -1547,6 +1880,30 @@ void DummyAudioPort::generate (const pframes_t n_samples) case Silence: memset (_buffer, 0, n_samples * sizeof (Sample)); break; + case DC05: + for (pframes_t i = 0 ; i < n_samples; ++i) { + _buffer[i] = 0.5f; + } + break; + case Demolition: + switch (_gen_count2) { + case 0: // noise + for (pframes_t i = 0 ; i < n_samples; ++i) { + _buffer[i] = randf(); + } + break; + default: + for (pframes_t i = 0 ; i < n_samples; ++i) { + _buffer[i] = _demolition [_gen_count2]; + } + break; + } + _gen_offset += n_samples; + if (_gen_offset > _gen_period) { + _gen_offset = 0; + _gen_count2 = (_gen_count2 + 1) % (sizeof (_demolition) / sizeof (float)); + } + break; case SquareWave: assert(_gen_period > 0); for (pframes_t i = 0 ; i < n_samples; ++i) { @@ -1569,11 +1926,12 @@ void DummyAudioPort::generate (const pframes_t n_samples) } break; case SineSweepSwell: + case SquareSweepSwell: assert(_wavetable && _gen_period > 0); { const float vols = 2.f / (float)_gen_perio2; for (pframes_t i = 0; i < n_samples; ++i) { - const float g = fabsf (_gen_count2 * vols - 1.0); + const float g = fabsf (_gen_count2 * vols - 1.f); _buffer[i] = g * _wavetable[_gen_offset]; _gen_offset = (_gen_offset + 1) % _gen_period; _gen_count2 = (_gen_count2 + 1) % _gen_perio2; @@ -1583,7 +1941,9 @@ void DummyAudioPort::generate (const pframes_t n_samples) case Loopback: _gen_period = n_samples; // XXX DummyBackend::_samples_per_period; case SineWave: + case SineWaveOctaves: case SineSweep: + case SquareSweep: assert(_wavetable && _gen_period > 0); { pframes_t written = 0; @@ -1643,8 +2003,9 @@ void DummyAudioPort::generate (const pframes_t n_samples) void* DummyAudioPort::get_buffer (pframes_t n_samples) { if (is_input ()) { - std::vector::const_iterator it = get_connections ().begin (); - if (it == get_connections ().end ()) { + const std::set& connections = get_connections (); + std::set::const_iterator it = connections.begin (); + if (it == connections.end ()) { memset (_buffer, 0, n_samples * sizeof (Sample)); } else { DummyAudioPort * source = static_cast(*it); @@ -1653,7 +2014,7 @@ void* DummyAudioPort::get_buffer (pframes_t n_samples) source->get_buffer(n_samples); // generate signal. } memcpy (_buffer, source->const_buffer (), n_samples * sizeof (Sample)); - while (++it != get_connections ().end ()) { + while (++it != connections.end ()) { source = static_cast(*it); assert (source && source->is_output ()); Sample* dst = buffer (); @@ -1682,9 +2043,13 @@ DummyMidiPort::DummyMidiPort (DummyAudioBackend &b, const std::string& name, Por , _midi_seq_pos (0) { _buffer.clear (); + _loopback.clear (); } -DummyMidiPort::~DummyMidiPort () { } +DummyMidiPort::~DummyMidiPort () { + _buffer.clear (); + _loopback.clear (); +} struct MidiEventSorter { bool operator() (const boost::shared_ptr& a, const boost::shared_ptr& b) { @@ -1692,26 +2057,23 @@ struct MidiEventSorter { } }; -void DummyMidiPort::setup_generator (int seq_id, const float sr) +void DummyMidiPort::set_loopback (DummyMidiBuffer const * const src) { - DummyPort::setup_random_number_generator(); - switch (seq_id) { - case 1: - _midi_seq_dat = DummyMidiData::s1; - break; - case 2: - _midi_seq_dat = DummyMidiData::s2; - break; - case 3: - _midi_seq_dat = DummyMidiData::s3; - break; - default: - _midi_seq_dat = DummyMidiData::s0; - break; + _loopback.clear (); + for (DummyMidiBuffer::const_iterator it = src->begin (); it != src->end (); ++it) { + _loopback.push_back (boost::shared_ptr(new DummyMidiEvent (**it))); } +} + +std::string +DummyMidiPort::setup_generator (int seq_id, const float sr) +{ + DummyPort::setup_random_number_generator(); + _midi_seq_dat = DummyMidiData::sequences[seq_id % NUM_MIDI_EVENT_GENERATORS]; _midi_seq_spb = sr * .5f; // 120 BPM, beat_time 1.0 per beat. _midi_seq_pos = 0; _midi_seq_time = 0; + return DummyMidiData::sequence_names[seq_id]; } void DummyMidiPort::midi_generate (const pframes_t n_samples) @@ -1725,6 +2087,9 @@ void DummyMidiPort::midi_generate (const pframes_t n_samples) _gen_cycle = true; if (_midi_seq_spb == 0 || !_midi_seq_dat) { + for (DummyMidiBuffer::const_iterator it = _loopback.begin (); it != _loopback.end (); ++it) { + _buffer.push_back (boost::shared_ptr(new DummyMidiEvent (**it))); + } return; } @@ -1737,7 +2102,9 @@ void DummyMidiPort::midi_generate (const pframes_t n_samples) break; } _buffer.push_back (boost::shared_ptr(new DummyMidiEvent ( - ev_beat_time, _midi_seq_dat[_midi_seq_pos].event, 3 + ev_beat_time, + _midi_seq_dat[_midi_seq_pos].event, + _midi_seq_dat[_midi_seq_pos].size ))); ++_midi_seq_pos; @@ -1754,15 +2121,16 @@ void* DummyMidiPort::get_buffer (pframes_t n_samples) { if (is_input ()) { _buffer.clear (); - for (std::vector::const_iterator i = get_connections ().begin (); - i != get_connections ().end (); + const std::set& connections = get_connections (); + for (std::set::const_iterator i = connections.begin (); + i != connections.end (); ++i) { DummyMidiPort * source = static_cast(*i); if (source->is_physical() && source->is_terminal()) { source->get_buffer(n_samples); // generate signal. } - const DummyMidiBuffer src = static_cast(*i)->const_buffer (); - for (DummyMidiBuffer::const_iterator it = src.begin (); it != src.end (); ++it) { + const DummyMidiBuffer *src = source->const_buffer (); + for (DummyMidiBuffer::const_iterator it = src->begin (); it != src->end (); ++it) { _buffer.push_back (boost::shared_ptr(new DummyMidiEvent (**it))); } } @@ -1782,7 +2150,7 @@ DummyMidiEvent::DummyMidiEvent (const pframes_t timestamp, const uint8_t* data, { if (size > 0) { _data = (uint8_t*) malloc (size); - memcpy (_data, data, size); + memcpy (_data, data, size); } }