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DummyAudioBackend: port-engine, midi-buffers and the rest of it
This commit is contained in:
Robin Gareus
Paul Davis
parent
e646eb998a
commit
587b6e21e7
2 changed files with 637 additions and 66 deletions
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@ -18,6 +18,8 @@
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*/
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#include <sys/time.h>
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#include <regex.h>
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#include "dummy_audiobackend.h"
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#include "pbd/error.h"
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#include "i18n.h"
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@ -25,6 +27,8 @@
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using namespace ARDOUR;
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static std::string s_instance_name;
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size_t DummyAudioBackend::_max_buffer_size = 8192;
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DummyAudioBackend::DummyAudioBackend (AudioEngine& e)
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: AudioBackend (e)
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, _running (false)
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@ -71,8 +75,15 @@ std::vector<float>
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DummyAudioBackend::available_sample_rates (const std::string&) const
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{
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std::vector<float> sr;
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sr.push_back (8000.0);
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sr.push_back (22050.0);
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sr.push_back (24000.0);
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sr.push_back (44100.0);
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sr.push_back (48000.0);
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sr.push_back (88200.0);
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sr.push_back (96000.0);
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sr.push_back (176400.0);
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sr.push_back (192000.0);
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return sr;
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}
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@ -80,8 +91,18 @@ std::vector<uint32_t>
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DummyAudioBackend::available_buffer_sizes (const std::string&) const
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{
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std::vector<uint32_t> bs;
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bs.push_back (4);
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bs.push_back (8);
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bs.push_back (16);
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bs.push_back (32);
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bs.push_back (64);
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bs.push_back (128);
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bs.push_back (256);
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bs.push_back (512);
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bs.push_back (1024);
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bs.push_back (2048);
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bs.push_back (4096);
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bs.push_back (8192);
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return bs;
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}
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@ -127,7 +148,9 @@ DummyAudioBackend::set_sample_rate (float sr)
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int
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DummyAudioBackend::set_buffer_size (uint32_t bs)
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{
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return -1;
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if (bs <= 0 || bs >= _max_buffer_size) {
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return -1;
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}
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_audio_buffersize = bs;
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engine.buffer_size_change (bs);
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return 0;
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@ -141,27 +164,31 @@ DummyAudioBackend::set_interleaved (bool yn)
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}
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int
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DummyAudioBackend::set_input_channels (uint32_t)
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DummyAudioBackend::set_input_channels (uint32_t cc)
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{
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return -1;
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_n_inputs = cc;
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return 0;
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}
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int
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DummyAudioBackend::set_output_channels (uint32_t)
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DummyAudioBackend::set_output_channels (uint32_t cc)
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{
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return -1;
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_n_outputs = cc;
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return 0;
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}
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int
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DummyAudioBackend::set_systemic_input_latency (uint32_t)
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DummyAudioBackend::set_systemic_input_latency (uint32_t sl)
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{
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return -1;
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_systemic_input_latency = sl;
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return 0;
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}
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int
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DummyAudioBackend::set_systemic_output_latency (uint32_t)
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DummyAudioBackend::set_systemic_output_latency (uint32_t sl)
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{
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return -1;
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_systemic_output_latency = sl;
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return 0;
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}
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/* Retrieving parameters */
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@ -192,25 +219,25 @@ DummyAudioBackend::interleaved () const
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uint32_t
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DummyAudioBackend::input_channels () const
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{
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return 0;
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return _n_inputs;
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}
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uint32_t
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DummyAudioBackend::output_channels () const
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{
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return 0;
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return _n_outputs;
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}
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uint32_t
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DummyAudioBackend::systemic_input_latency () const
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{
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return 0;
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return _systemic_input_latency;
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}
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uint32_t
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DummyAudioBackend::systemic_output_latency () const
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{
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return 0;
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return _systemic_output_latency;
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}
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/* MIDI */
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@ -309,6 +336,12 @@ DummyAudioBackend::dsp_load () const
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size_t
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DummyAudioBackend::raw_buffer_size (DataType t)
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{
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switch (t) {
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case DataType::AUDIO:
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return _max_buffer_size * sizeof(Sample);
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case DataType::MIDI:
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return _max_buffer_size; // XXX not really limited
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}
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return 0;
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}
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@ -435,130 +468,287 @@ DummyAudioBackend::port_name_size () const
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}
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int
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DummyAudioBackend::set_port_name (PortEngine::PortHandle, const std::string&)
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DummyAudioBackend::set_port_name (PortEngine::PortHandle port, const std::string& name)
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{
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return -1;
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if (!valid_port (port)) {
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PBD::error << _("DummyBackend::set_port_name: Invalid Port(s)") << endmsg;
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return -1;
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}
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return static_cast<DummyPort*>(port)->set_name (_instance_name + ":" + name);
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}
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std::string
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DummyAudioBackend::get_port_name (PortEngine::PortHandle) const
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DummyAudioBackend::get_port_name (PortEngine::PortHandle port) const
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{
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return "port:XXX";
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if (!valid_port (port)) {
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PBD::error << _("DummyBackend::get_port_name: Invalid Port(s)") << endmsg;
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return std::string ();
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}
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return static_cast<DummyPort*>(port)->name ();
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}
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PortEngine::PortHandle
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DummyAudioBackend::get_port_by_name (const std::string&) const
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DummyAudioBackend::get_port_by_name (const std::string& name) const
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{
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PortEngine::PortHandle port_handle = 0;
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return port_handle;
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PortHandle port = (PortHandle) find_port (name);
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return port;
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}
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int
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DummyAudioBackend::get_ports (
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const std::string& port_name_pattern,
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DataType type, PortFlags flags,
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std::vector<std::string>&) const
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std::vector<std::string>& port_names) const
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{
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return 0;
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int rv = 0;
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regex_t port_regex;
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bool use_regexp = false;
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if (port_name_pattern.size () > 0) {
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if (!regcomp (&port_regex, port_name_pattern.c_str (), REG_EXTENDED|REG_NOSUB)) {
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use_regexp = true;
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}
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}
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for (size_t i = 0; i < _ports.size (); ++i) {
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DummyPort* port = _ports[i];
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if ((port->type () == type) && (port->flags () & flags)) {
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if (!use_regexp || !regexec (&port_regex, port->name ().c_str (), 0, NULL, 0)) {
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port_names.push_back (port->name ());
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++rv;
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}
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}
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}
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if (use_regexp) {
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regfree (&port_regex);
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}
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return rv;
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}
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DataType
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DummyAudioBackend::port_data_type (PortEngine::PortHandle) const
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DummyAudioBackend::port_data_type (PortEngine::PortHandle port) const
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{
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return DataType::AUDIO;
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if (!valid_port (port)) {
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return DataType::NIL;
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}
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return static_cast<DummyPort*>(port)->type ();
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}
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PortEngine::PortHandle
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DummyAudioBackend::register_port (
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const std::string&,
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ARDOUR::DataType,
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ARDOUR::PortFlags)
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const std::string& name,
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ARDOUR::DataType type,
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ARDOUR::PortFlags flags)
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{
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PortEngine::PortHandle port_handle = 0;
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return port_handle;
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if (name.size () == 0) { return 0; }
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if (flags & IsPhysical) { return 0; }
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if (find_port (_instance_name + ":" + name) != NULL) {
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PBD::error << _("DummyBackend::register_port: Port already exists.") << endmsg;
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return 0;
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}
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DummyPort* port = NULL;
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switch (type) {
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case DataType::AUDIO:
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port = new DummyAudioPort (_instance_name + ":" + name, flags);
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break;
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case DataType::MIDI:
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port = new DummyMidiPort (_instance_name + ":" + name, flags);
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break;
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default:
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PBD::error << _("DummyBackend::register_port: Invalid Data Type.") << endmsg;
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return 0;
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}
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_ports.push_back (port);
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return port;
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}
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void
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DummyAudioBackend::unregister_port (PortEngine::PortHandle)
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DummyAudioBackend::unregister_port (PortEngine::PortHandle port_handle)
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{
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if (!valid_port (port_handle)) {
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PBD::error << _("DummyBackend::unregister_port: Invalid Port.") << endmsg;
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}
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DummyPort* port = (DummyPort*)port_handle;
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std::vector<DummyPort*>::iterator i = std::find (_ports.begin (), _ports.end (), (DummyPort*)port_handle);
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if (i == _ports.end ()) {
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PBD::error << _("DummyBackend::unregister_port: Failed to find port") << endmsg;
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return;
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}
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_ports.erase (i);
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delete port;
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}
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int
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DummyAudioBackend::connect (const std::string& src, const std::string& dst)
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{
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return -1;
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DummyPort* src_port = find_port (src);
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DummyPort* dst_port = find_port (dst);
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if (!src_port) {
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PBD::error << _("DummyBackend::connect: Invalid Source port:")
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<< " (" << src <<")" << endmsg;
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return -1;
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}
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if (!dst_port) {
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PBD::error << _("DummyBackend::connect: Invalid Destination port:")
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<< " (" << dst <<")" << endmsg;
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return -1;
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}
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return src_port->connect (dst_port);
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}
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int
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DummyAudioBackend::disconnect (const std::string& src, const std::string& dst)
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{
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return -1;
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DummyPort* src_port = find_port (src);
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DummyPort* dst_port = find_port (dst);
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if (!src_port || !dst_port) {
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PBD::error << _("DummyBackend::disconnect: Invalid Port(s)") << endmsg;
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return -1;
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}
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return src_port->disconnect (dst_port);
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}
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int
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DummyAudioBackend::connect (PortEngine::PortHandle, const std::string&)
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DummyAudioBackend::connect (PortEngine::PortHandle src, const std::string& dst)
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{
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return -1;
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DummyPort* dst_port = find_port (dst);
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if (!valid_port (src)) {
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PBD::error << _("DummyBackend::connect: Invalid Source Port Handle") << endmsg;
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return -1;
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}
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if (!dst_port) {
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PBD::error << _("DummyBackend::connect: Invalid Destination Port")
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<< " (" << dst << ")" << endmsg;
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return -1;
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}
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return static_cast<DummyPort*>(src)->connect (dst_port);
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}
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int
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DummyAudioBackend::disconnect (PortEngine::PortHandle, const std::string&)
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DummyAudioBackend::disconnect (PortEngine::PortHandle src, const std::string& dst)
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{
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return -1;
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DummyPort* dst_port = find_port (dst);
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if (!valid_port (src) || !dst_port) {
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PBD::error << _("DummyBackend::disconnect: Invalid Port(s)") << endmsg;
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return -1;
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}
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return static_cast<DummyPort*>(src)->disconnect (dst_port);
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}
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int
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DummyAudioBackend::disconnect_all (PortEngine::PortHandle)
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DummyAudioBackend::disconnect_all (PortEngine::PortHandle port)
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{
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return -1;
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if (!valid_port (port)) {
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PBD::error << _("DummyBackend::disconnect_all: Invalid Port") << endmsg;
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return -1;
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}
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static_cast<DummyPort*>(port)->disconnect_all ();
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return 0;
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}
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bool
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DummyAudioBackend::connected (PortEngine::PortHandle, bool process_callback_safe)
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DummyAudioBackend::connected (PortEngine::PortHandle port, bool /* process_callback_safe*/)
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{
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return false;
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if (!valid_port (port)) {
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PBD::error << _("DummyBackend::disconnect_all: Invalid Port") << endmsg;
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return false;
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}
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return static_cast<DummyPort*>(port)->is_connected ();
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}
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bool
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DummyAudioBackend::connected_to (PortEngine::PortHandle, const std::string&, bool process_callback_safe)
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DummyAudioBackend::connected_to (PortEngine::PortHandle src, const std::string& dst, bool /*process_callback_safe*/)
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{
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return false;
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DummyPort* dst_port = find_port (dst);
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if (!valid_port (src) || !dst_port) {
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PBD::error << _("DummyBackend::connected_to: Invalid Port") << endmsg;
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return false;
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}
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return static_cast<DummyPort*>(src)->is_connected (dst_port);
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}
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bool
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DummyAudioBackend::physically_connected (PortEngine::PortHandle, bool process_callback_safe)
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DummyAudioBackend::physically_connected (PortEngine::PortHandle port, bool /*process_callback_safe*/)
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{
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return false;
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if (!valid_port (port)) {
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PBD::error << _("DummyBackend::physically_connected: Invalid Port") << endmsg;
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return false;
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}
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return static_cast<DummyPort*>(port)->is_physically_connected ();
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}
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int
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DummyAudioBackend::get_connections (PortEngine::PortHandle, std::vector<std::string>&, bool process_callback_safe)
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DummyAudioBackend::get_connections (PortEngine::PortHandle port, std::vector<std::string>& names, bool /*process_callback_safe*/)
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{
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return false;
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if (!valid_port (port)) {
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PBD::error << _("DummyBackend::get_connections: Invalid Port") << endmsg;
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return -1;
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}
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assert (0 == names.size ());
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const std::vector<DummyPort*>& connected_ports = static_cast<DummyPort*>(port)->get_connections ();
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for (std::vector<DummyPort*>::const_iterator i = connected_ports.begin (); i != connected_ports.end (); ++i) {
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names.push_back ((*i)->name ());
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}
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return (int)names.size ();
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}
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/* MIDI */
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int
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DummyAudioBackend::midi_event_get (pframes_t& timestamp, size_t& size, uint8_t** buf, void* port_buffer, uint32_t event_index)
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DummyAudioBackend::midi_event_get (
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pframes_t& timestamp,
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size_t& size, uint8_t** buf, void* port_buffer,
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uint32_t event_index)
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{
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return -1;
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assert (buf && port_buffer);
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DummyMidiBuffer& source = * (DummyMidiBuffer*)port_buffer;
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if (event_index >= source.size ()) {
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return -1;
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}
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DummyMidiEvent * const event = source[event_index].get ();
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timestamp = event->timestamp ();
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size = event->size ();
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*buf = event->data ();
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return 0;
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}
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int
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DummyAudioBackend::midi_event_put (void* port_buffer, pframes_t timestamp, const uint8_t* buffer, size_t size)
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DummyAudioBackend::midi_event_put (
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void* port_buffer,
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pframes_t timestamp,
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const uint8_t* buffer, size_t size)
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{
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return -1;
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assert (buffer && port_buffer);
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DummyMidiBuffer& dst = * (DummyMidiBuffer*)port_buffer;
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if (dst.size () && (pframes_t)dst.back ()->timestamp () > timestamp) {
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fprintf (stderr, "DummyMidiBuffer: it's too late for this event.\n");
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return -1;
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}
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dst.push_back (boost::shared_ptr<DummyMidiEvent>(new DummyMidiEvent (timestamp, buffer, size)));
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return 0;
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}
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uint32_t
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DummyAudioBackend::get_midi_event_count (void* port_buffer)
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{
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return -1;
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assert (port_buffer);
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return static_cast<DummyMidiBuffer*>(port_buffer)->size ();
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}
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void
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DummyAudioBackend::midi_clear (void* port_buffer)
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{
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assert (port_buffer);
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DummyMidiBuffer * buf = static_cast<DummyMidiBuffer*>(port_buffer);
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assert (buf);
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buf->clear ();
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}
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/* Monitoring */
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|
|
@ -590,60 +780,111 @@ DummyAudioBackend::monitoring_input (PortEngine::PortHandle)
|
|||
/* Latency management */
|
||||
|
||||
void
|
||||
DummyAudioBackend::set_latency_range (PortEngine::PortHandle, bool for_playback, LatencyRange)
|
||||
DummyAudioBackend::set_latency_range (PortEngine::PortHandle port, bool for_playback, LatencyRange latency_range)
|
||||
{
|
||||
if (!valid_port (port)) {
|
||||
PBD::error << _("DummyPort::set_latency_range (): invalid port.") << endmsg;
|
||||
}
|
||||
static_cast<DummyPort*>(port)->set_latency_range (latency_range, for_playback);
|
||||
}
|
||||
|
||||
LatencyRange
|
||||
DummyAudioBackend::get_latency_range (PortEngine::PortHandle, bool for_playback)
|
||||
DummyAudioBackend::get_latency_range (PortEngine::PortHandle port, bool for_playback)
|
||||
{
|
||||
LatencyRange r;
|
||||
r.min = 0;
|
||||
r.max = 0;
|
||||
return 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<DummyPort*>(port)->latency_range (for_playback);
|
||||
}
|
||||
|
||||
/* Discovering physical ports */
|
||||
|
||||
bool
|
||||
DummyAudioBackend::port_is_physical (PortEngine::PortHandle) const
|
||||
DummyAudioBackend::port_is_physical (PortEngine::PortHandle port) const
|
||||
{
|
||||
return false;
|
||||
if (!valid_port (port)) {
|
||||
PBD::error << _("DummyPort::port_is_physical (): invalid port.") << endmsg;
|
||||
return false;
|
||||
}
|
||||
return static_cast<DummyPort*>(port)->is_physical ();
|
||||
}
|
||||
|
||||
void
|
||||
DummyAudioBackend::get_physical_outputs (DataType type, std::vector<std::string>&)
|
||||
DummyAudioBackend::get_physical_outputs (DataType type, std::vector<std::string>& port_names)
|
||||
{
|
||||
for (size_t i = 0; i < _ports.size (); ++i) {
|
||||
DummyPort* port = _ports[i];
|
||||
if ((port->type () == type) && port->is_output () && port->is_physical ()) {
|
||||
port_names.push_back (port->name ());
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
DummyAudioBackend::get_physical_inputs (DataType type, std::vector<std::string>&)
|
||||
DummyAudioBackend::get_physical_inputs (DataType type, std::vector<std::string>& port_names)
|
||||
{
|
||||
for (size_t i = 0; i < _ports.size (); ++i) {
|
||||
DummyPort* port = _ports[i];
|
||||
if ((port->type () == type) && port->is_input () && port->is_physical ()) {
|
||||
port_names.push_back (port->name ());
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
ChanCount
|
||||
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];
|
||||
if (port->is_output () && port->is_physical ()) {
|
||||
switch (port->type ()) {
|
||||
case DataType::AUDIO: ++n_audio; break;
|
||||
case DataType::MIDI: ++n_midi; break;
|
||||
default: break;
|
||||
}
|
||||
}
|
||||
}
|
||||
ChanCount cc;
|
||||
cc.set (DataType::AUDIO, 0);
|
||||
cc.set (DataType::MIDI, 0);
|
||||
cc.set (DataType::AUDIO, n_audio);
|
||||
cc.set (DataType::MIDI, n_midi);
|
||||
return cc;
|
||||
}
|
||||
|
||||
ChanCount
|
||||
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];
|
||||
if (port->is_input () && port->is_physical ()) {
|
||||
switch (port->type ()) {
|
||||
case DataType::AUDIO: ++n_audio; break;
|
||||
case DataType::MIDI: ++n_midi; break;
|
||||
default: break;
|
||||
}
|
||||
}
|
||||
}
|
||||
ChanCount cc;
|
||||
cc.set (DataType::AUDIO, 0);
|
||||
cc.set (DataType::MIDI, 0);
|
||||
cc.set (DataType::AUDIO, n_audio);
|
||||
cc.set (DataType::MIDI, n_midi);
|
||||
return cc;
|
||||
}
|
||||
|
||||
/* Getting access to the data buffer for a port */
|
||||
|
||||
void*
|
||||
DummyAudioBackend::get_buffer (PortEngine::PortHandle, pframes_t)
|
||||
DummyAudioBackend::get_buffer (PortEngine::PortHandle port, pframes_t nframes)
|
||||
{
|
||||
assert (port);
|
||||
assert (valid_port (port));
|
||||
return static_cast<DummyPort*>(port)->get_buffer (nframes);
|
||||
}
|
||||
|
||||
/* Engine Process */
|
||||
|
|
@ -681,6 +922,7 @@ DummyAudioBackend::main_process_thread ()
|
|||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
static boost::shared_ptr<DummyAudioBackend> _instance;
|
||||
|
|
@ -726,3 +968,208 @@ extern "C" ARDOURBACKEND_API ARDOUR::AudioBackendInfo* descriptor ()
|
|||
{
|
||||
return &_descriptor;
|
||||
}
|
||||
|
||||
|
||||
/******************************************************************************/
|
||||
DummyPort::DummyPort (const std::string& name, PortFlags flags)
|
||||
: _name (name)
|
||||
, _flags (flags)
|
||||
{
|
||||
_capture_latency_range.min = 0;
|
||||
_capture_latency_range.max = 0;
|
||||
_playback_latency_range.min = 0;
|
||||
_playback_latency_range.max = 0;
|
||||
}
|
||||
|
||||
DummyPort::~DummyPort () {
|
||||
disconnect_all ();
|
||||
}
|
||||
|
||||
|
||||
int DummyPort::connect (DummyPort *port)
|
||||
{
|
||||
if (!port) {
|
||||
PBD::error << _("DummyPort::connect (): invalid (null) port") << endmsg;
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (type () != port->type ()) {
|
||||
PBD::error << _("DummyPort::connect (): wrong port-type") << endmsg;
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (is_output () && port->is_output ()) {
|
||||
PBD::error << _("DummyPort::connect (): cannot inter-connect output ports.") << endmsg;
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (is_input () && port->is_input ()) {
|
||||
PBD::error << _("DummyPort::connect (): cannot inter-connect input ports.") << endmsg;
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (this == port) {
|
||||
PBD::error << _("DummyPort::connect (): cannot self-connect ports.") << endmsg;
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (is_connected (port)) {
|
||||
PBD::error << _("DummyPort::connect (): ports are already connected:")
|
||||
<< " (" << name () << ") -> (" << port->name () << ")"
|
||||
<< endmsg;
|
||||
return -1;
|
||||
}
|
||||
|
||||
_connect (port, true);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
void DummyPort::_connect (DummyPort *port, bool callback)
|
||||
{
|
||||
_connections.push_back (port);
|
||||
if (callback) {
|
||||
port->_connect (this, false);
|
||||
}
|
||||
}
|
||||
|
||||
int DummyPort::disconnect (DummyPort *port)
|
||||
{
|
||||
if (!port) {
|
||||
PBD::error << _("DummyPort::disconnect (): invalid (null) port") << endmsg;
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (!is_connected (port)) {
|
||||
PBD::error << _("DummyPort::disconnect (): ports are not connected:")
|
||||
<< " (" << name () << ") -> (" << port->name () << ")"
|
||||
<< endmsg;
|
||||
return -1;
|
||||
}
|
||||
_disconnect (port, true);
|
||||
return 0;
|
||||
}
|
||||
|
||||
void DummyPort::_disconnect (DummyPort *port, bool callback)
|
||||
{
|
||||
std::vector<DummyPort*>::iterator it = std::find (_connections.begin (), _connections.end (), port);
|
||||
|
||||
assert (it != _connections.end ());
|
||||
|
||||
_connections.erase (it);
|
||||
|
||||
if (callback) {
|
||||
port->_disconnect (this, false);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void DummyPort::disconnect_all ()
|
||||
{
|
||||
while (!_connections.empty ()) {
|
||||
_connections.back ()->_disconnect (this, false);
|
||||
_connections.pop_back ();
|
||||
}
|
||||
}
|
||||
|
||||
bool
|
||||
DummyPort::is_connected (const DummyPort *port) const
|
||||
{
|
||||
return std::find (_connections.begin (), _connections.end (), port) != _connections.end ();
|
||||
}
|
||||
|
||||
bool DummyPort::is_physically_connected () const
|
||||
{
|
||||
for (std::vector<DummyPort*>::const_iterator it = _connections.begin (); it != _connections.end (); ++it) {
|
||||
if ((*it)->is_physical ()) {
|
||||
return true;
|
||||
}
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
/******************************************************************************/
|
||||
|
||||
DummyAudioPort::DummyAudioPort (const std::string& name, PortFlags flags)
|
||||
: DummyPort (name, flags)
|
||||
{
|
||||
memset (_buffer, 0, sizeof (_buffer));
|
||||
}
|
||||
|
||||
DummyAudioPort::~DummyAudioPort () { }
|
||||
|
||||
void* DummyAudioPort::get_buffer (pframes_t n_samples)
|
||||
{
|
||||
if (is_input ()) {
|
||||
std::vector<DummyPort*>::const_iterator it = get_connections ().begin ();
|
||||
if (it == get_connections ().end ()) {
|
||||
memset (_buffer, 0, n_samples * sizeof (Sample));
|
||||
} else {
|
||||
DummyAudioPort const * source = static_cast<const DummyAudioPort*>(*it);
|
||||
assert (source && source->is_output ());
|
||||
memcpy (_buffer, source->const_buffer (), n_samples * sizeof (Sample));
|
||||
while (++it != get_connections ().end ()) {
|
||||
source = static_cast<const DummyAudioPort*>(*it);
|
||||
assert (source && source->is_output ());
|
||||
Sample* dst = buffer ();
|
||||
const Sample* src = source->const_buffer ();
|
||||
for (uint32_t s = 0; s < n_samples; ++s, ++dst, ++src) {
|
||||
*dst += *src;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
return _buffer;
|
||||
}
|
||||
|
||||
|
||||
DummyMidiPort::DummyMidiPort (const std::string& name, PortFlags flags)
|
||||
: DummyPort (name, flags)
|
||||
{
|
||||
_buffer.clear ();
|
||||
}
|
||||
|
||||
DummyMidiPort::~DummyMidiPort () { }
|
||||
|
||||
void* DummyMidiPort::get_buffer (pframes_t /* nframes */)
|
||||
{
|
||||
if (is_input ()) {
|
||||
_buffer.clear ();
|
||||
for (std::vector<DummyPort*>::const_iterator i = get_connections ().begin ();
|
||||
i != get_connections ().end ();
|
||||
++i) {
|
||||
const DummyMidiBuffer src = static_cast<const DummyMidiPort*>(*i)->const_buffer ();
|
||||
for (DummyMidiBuffer::const_iterator it = src.begin (); it != src.end (); ++it) {
|
||||
_buffer.push_back (boost::shared_ptr<DummyMidiEvent>(new DummyMidiEvent (**it)));
|
||||
}
|
||||
}
|
||||
std::sort (_buffer.begin (), _buffer.end ());
|
||||
}
|
||||
return &_buffer;
|
||||
}
|
||||
|
||||
DummyMidiEvent::DummyMidiEvent (const pframes_t timestamp, const uint8_t* data, size_t size)
|
||||
: _size (size)
|
||||
, _timestamp (timestamp)
|
||||
, _data (0)
|
||||
{
|
||||
if (size > 0) {
|
||||
_data = (uint8_t*) malloc (size);
|
||||
memcpy (_data, data, size);
|
||||
}
|
||||
}
|
||||
|
||||
DummyMidiEvent::DummyMidiEvent (const DummyMidiEvent& other)
|
||||
: _size (other.size ())
|
||||
, _timestamp (other.timestamp ())
|
||||
, _data (0)
|
||||
{
|
||||
if (other.size () && other.const_data ()) {
|
||||
_data = (uint8_t*) malloc (other.size ());
|
||||
memcpy (_data, other.const_data (), other.size ());
|
||||
}
|
||||
};
|
||||
|
||||
DummyMidiEvent::~DummyMidiEvent () {
|
||||
free (_data);
|
||||
};
|
||||
|
|
|
|||
|
|
@ -28,11 +28,118 @@
|
|||
#include <stdint.h>
|
||||
#include <pthread.h>
|
||||
|
||||
#include <boost/shared_ptr.hpp>
|
||||
|
||||
#include "ardour/types.h"
|
||||
#include "ardour/audio_backend.h"
|
||||
|
||||
namespace ARDOUR {
|
||||
|
||||
class DummyMidiEvent {
|
||||
public:
|
||||
DummyMidiEvent(const pframes_t timestamp, const uint8_t* data, size_t size);
|
||||
DummyMidiEvent(const DummyMidiEvent& other);
|
||||
~DummyMidiEvent();
|
||||
size_t size () const { return _size; };
|
||||
pframes_t timestamp () const { return _timestamp; };
|
||||
const unsigned char* const_data () const { return _data; };
|
||||
unsigned char* data () { return _data; };
|
||||
bool operator< (const DummyMidiEvent &other) const { return timestamp () < other.timestamp (); };
|
||||
private:
|
||||
size_t _size;
|
||||
pframes_t _timestamp;
|
||||
uint8_t *_data;
|
||||
};
|
||||
|
||||
typedef std::vector<boost::shared_ptr<DummyMidiEvent> > DummyMidiBuffer;
|
||||
|
||||
class DummyPort {
|
||||
protected:
|
||||
DummyPort (const std::string&, PortFlags);
|
||||
public:
|
||||
virtual ~DummyPort ();
|
||||
|
||||
const std::string& name () const { return _name; }
|
||||
PortFlags flags () const { return _flags; }
|
||||
|
||||
int set_name (const std::string &name) { _name = name; return 0; }
|
||||
|
||||
virtual DataType type () const = 0;
|
||||
|
||||
bool is_input () const { return flags () & IsInput; }
|
||||
bool is_output () const { return flags () & IsOutput; }
|
||||
bool is_physical () const { return flags () & IsPhysical; }
|
||||
bool is_terminal () const { return flags () & IsTerminal; }
|
||||
bool is_connected () const { return _connections.size () != 0; }
|
||||
bool is_connected (const DummyPort *port) const;
|
||||
bool is_physically_connected () const;
|
||||
|
||||
const std::vector<DummyPort *>& get_connections () const { return _connections; }
|
||||
|
||||
int connect (DummyPort *port);
|
||||
int disconnect (DummyPort *port);
|
||||
void disconnect_all ();
|
||||
|
||||
virtual void* get_buffer (pframes_t nframes) = 0;
|
||||
|
||||
const LatencyRange& latency_range (bool for_playback) const
|
||||
{
|
||||
return for_playback ? _playback_latency_range : _capture_latency_range;
|
||||
}
|
||||
|
||||
void set_latency_range (const LatencyRange &latency_range, bool for_playback)
|
||||
{
|
||||
if (for_playback)
|
||||
{
|
||||
_playback_latency_range = latency_range;
|
||||
}
|
||||
else
|
||||
{
|
||||
_capture_latency_range = latency_range;
|
||||
}
|
||||
}
|
||||
|
||||
private:
|
||||
std::string _name;
|
||||
const PortFlags _flags;
|
||||
LatencyRange _capture_latency_range;
|
||||
LatencyRange _playback_latency_range;
|
||||
std::vector<DummyPort*> _connections;
|
||||
|
||||
void _connect (DummyPort* , bool);
|
||||
void _disconnect (DummyPort* , bool);
|
||||
|
||||
}; // class DummyPort
|
||||
|
||||
class DummyAudioPort : public DummyPort {
|
||||
public:
|
||||
DummyAudioPort (const std::string&, PortFlags);
|
||||
~DummyAudioPort ();
|
||||
|
||||
DataType type () const { return DataType::AUDIO; };
|
||||
|
||||
Sample* buffer () { return _buffer; }
|
||||
const Sample* const_buffer () const { return _buffer; }
|
||||
void* get_buffer (pframes_t nframes);
|
||||
|
||||
private:
|
||||
Sample _buffer[8192];
|
||||
}; // class DummyAudioPort
|
||||
|
||||
class DummyMidiPort : public DummyPort {
|
||||
public:
|
||||
DummyMidiPort (const std::string&, PortFlags);
|
||||
~DummyMidiPort ();
|
||||
|
||||
DataType type () const { return DataType::MIDI; };
|
||||
|
||||
void* get_buffer (pframes_t nframes);
|
||||
const DummyMidiBuffer const_buffer () const { return _buffer; }
|
||||
|
||||
private:
|
||||
DummyMidiBuffer _buffer;
|
||||
}; // class DummyMidiPort
|
||||
|
||||
class DummyAudioBackend : public AudioBackend {
|
||||
public:
|
||||
DummyAudioBackend (AudioEngine& e);
|
||||
|
|
@ -170,6 +277,7 @@ class DummyAudioBackend : public AudioBackend {
|
|||
float _samplerate;
|
||||
size_t _audio_buffersize;
|
||||
float _dsp_load;
|
||||
static size_t _max_buffer_size;
|
||||
|
||||
uint32_t _n_inputs;
|
||||
uint32_t _n_outputs;
|
||||
|
|
@ -193,6 +301,22 @@ class DummyAudioBackend : public AudioBackend {
|
|||
ThreadData (DummyAudioBackend* e, boost::function<void ()> fp, size_t stacksz)
|
||||
: engine (e) , f (fp) , stacksize (stacksz) {}
|
||||
};
|
||||
|
||||
/* port engine */
|
||||
std::vector<DummyPort *> _ports;
|
||||
|
||||
bool valid_port (PortHandle port) const {
|
||||
return std::find (_ports.begin (), _ports.end (), (DummyPort*)port) != _ports.end ();
|
||||
}
|
||||
DummyPort * find_port(const std::string& port_name) const {
|
||||
for (std::vector<DummyPort*>::const_iterator it = _ports.begin (); it != _ports.end (); ++it) {
|
||||
if ((*it)->name () == port_name) {
|
||||
return *it;
|
||||
}
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
}; // class DummyAudioBackend
|
||||
|
||||
} // namespace
|
||||
|
|
|
|||
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Add table
Add a link
Reference in a new issue