2 * Copyright (C) 2014 Robin Gareus <robin@gareus.org>
3 * Copyright (C) 2013 Paul Davis
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #include "dummy_audiobackend.h"
21 #include "pbd/error.h"
24 using namespace ARDOUR;
26 static std::string s_instance_name;
27 DummyAudioBackend::DummyAudioBackend (AudioEngine& e)
30 _instance_name = s_instance_name;
33 DummyAudioBackend::~DummyAudioBackend ()
37 /* AUDIOBACKEND API */
40 DummyAudioBackend::name () const
46 DummyAudioBackend::is_realtime () const
51 std::vector<AudioBackend::DeviceStatus>
52 DummyAudioBackend::enumerate_devices () const
54 std::vector<AudioBackend::DeviceStatus> s;
55 s.push_back (DeviceStatus (_("Dummy"), true));
60 DummyAudioBackend::available_sample_rates (const std::string&) const
62 std::vector<float> sr;
63 sr.push_back (44100.0);
64 sr.push_back (48000.0);
69 DummyAudioBackend::available_buffer_sizes (const std::string&) const
71 std::vector<uint32_t> bs;
78 DummyAudioBackend::available_input_channel_count (const std::string&) const
84 DummyAudioBackend::available_output_channel_count (const std::string&) const
90 DummyAudioBackend::can_change_sample_rate_when_running () const
96 DummyAudioBackend::can_change_buffer_size_when_running () const
102 DummyAudioBackend::set_device_name (const std::string&)
108 DummyAudioBackend::set_sample_rate (float)
114 DummyAudioBackend::set_buffer_size (uint32_t)
120 DummyAudioBackend::set_interleaved (bool yn)
122 if (!yn) { return 0; }
127 DummyAudioBackend::set_input_channels (uint32_t)
133 DummyAudioBackend::set_output_channels (uint32_t)
139 DummyAudioBackend::set_systemic_input_latency (uint32_t)
145 DummyAudioBackend::set_systemic_output_latency (uint32_t)
150 /* Retrieving parameters */
152 DummyAudioBackend::device_name () const
154 return _("Dummy Device");
158 DummyAudioBackend::sample_rate () const
164 DummyAudioBackend::buffer_size () const
170 DummyAudioBackend::interleaved () const
176 DummyAudioBackend::input_channels () const
182 DummyAudioBackend::output_channels () const
188 DummyAudioBackend::systemic_input_latency () const
194 DummyAudioBackend::systemic_output_latency () const
200 std::vector<std::string>
201 DummyAudioBackend::enumerate_midi_options () const
203 std::vector<std::string> m;
204 m.push_back (_("None"));
209 DummyAudioBackend::set_midi_option (const std::string&)
215 DummyAudioBackend::midi_option () const
223 DummyAudioBackend::_start (bool /*for_latency_measurement*/)
229 DummyAudioBackend::stop ()
235 DummyAudioBackend::freewheel (bool)
241 DummyAudioBackend::dsp_load () const
247 DummyAudioBackend::raw_buffer_size (DataType t)
254 DummyAudioBackend::sample_time ()
260 DummyAudioBackend::sample_time_at_cycle_start ()
266 DummyAudioBackend::samples_since_cycle_start ()
272 DummyAudioBackend::create_process_thread (boost::function<void()> func)
278 DummyAudioBackend::join_process_threads ()
284 DummyAudioBackend::in_process_thread ()
290 DummyAudioBackend::process_thread_count ()
296 DummyAudioBackend::update_latencies ()
303 DummyAudioBackend::private_handle () const
309 DummyAudioBackend::my_name () const
311 return _instance_name;
315 DummyAudioBackend::available () const
321 DummyAudioBackend::port_name_size () const
327 DummyAudioBackend::set_port_name (PortEngine::PortHandle, const std::string&)
333 DummyAudioBackend::get_port_name (PortEngine::PortHandle) const
338 PortEngine::PortHandle
339 DummyAudioBackend::get_port_by_name (const std::string&) const
341 PortEngine::PortHandle port_handle = 0;
346 DummyAudioBackend::get_ports (
347 const std::string& port_name_pattern,
348 DataType type, PortFlags flags,
349 std::vector<std::string>&) const
355 DummyAudioBackend::port_data_type (PortEngine::PortHandle) const
357 return DataType::AUDIO;
360 PortEngine::PortHandle
361 DummyAudioBackend::register_port (
366 PortEngine::PortHandle port_handle = 0;
371 DummyAudioBackend::unregister_port (PortEngine::PortHandle)
376 DummyAudioBackend::connect (const std::string& src, const std::string& dst)
382 DummyAudioBackend::disconnect (const std::string& src, const std::string& dst)
388 DummyAudioBackend::connect (PortEngine::PortHandle, const std::string&)
394 DummyAudioBackend::disconnect (PortEngine::PortHandle, const std::string&)
400 DummyAudioBackend::disconnect_all (PortEngine::PortHandle)
406 DummyAudioBackend::connected (PortEngine::PortHandle, bool process_callback_safe)
412 DummyAudioBackend::connected_to (PortEngine::PortHandle, const std::string&, bool process_callback_safe)
418 DummyAudioBackend::physically_connected (PortEngine::PortHandle, bool process_callback_safe)
424 DummyAudioBackend::get_connections (PortEngine::PortHandle, std::vector<std::string>&, bool process_callback_safe)
431 DummyAudioBackend::midi_event_get (pframes_t& timestamp, size_t& size, uint8_t** buf, void* port_buffer, uint32_t event_index)
437 DummyAudioBackend::midi_event_put (void* port_buffer, pframes_t timestamp, const uint8_t* buffer, size_t size)
443 DummyAudioBackend::get_midi_event_count (void* port_buffer)
449 DummyAudioBackend::midi_clear (void* port_buffer)
456 DummyAudioBackend::can_monitor_input () const
462 DummyAudioBackend::request_input_monitoring (PortEngine::PortHandle, bool)
468 DummyAudioBackend::ensure_input_monitoring (PortEngine::PortHandle, bool)
474 DummyAudioBackend::monitoring_input (PortEngine::PortHandle)
479 /* Latency management */
482 DummyAudioBackend::set_latency_range (PortEngine::PortHandle, bool for_playback, LatencyRange)
487 DummyAudioBackend::get_latency_range (PortEngine::PortHandle, bool for_playback)
495 /* Discovering physical ports */
498 DummyAudioBackend::port_is_physical (PortEngine::PortHandle) const
504 DummyAudioBackend::get_physical_outputs (DataType type, std::vector<std::string>&)
509 DummyAudioBackend::get_physical_inputs (DataType type, std::vector<std::string>&)
514 DummyAudioBackend::n_physical_outputs () const
517 cc.set (DataType::AUDIO, 0);
518 cc.set (DataType::MIDI, 0);
523 DummyAudioBackend::n_physical_inputs () const
526 cc.set (DataType::AUDIO, 0);
527 cc.set (DataType::MIDI, 0);
531 /* Getting access to the data buffer for a port */
534 DummyAudioBackend::get_buffer (PortEngine::PortHandle, pframes_t)
539 /******************************************************************************/
541 static boost::shared_ptr<DummyAudioBackend> _instance;
543 static boost::shared_ptr<AudioBackend>
544 backend_factory (AudioEngine& e)
547 _instance.reset (new DummyAudioBackend (e));
553 instantiate (const std::string& arg1, const std::string& /* arg2 */)
555 s_instance_name = arg1;
567 already_configured ()
572 static ARDOUR::AudioBackendInfo _descriptor = {
580 extern "C" ARDOURBACKEND_API ARDOUR::AudioBackendInfo* descriptor ()