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use PortEngineSharedImpl with DummyAudioBackend

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This commit is contained in:
Paul Davis
2020-04-02 17:15:47 -06:00
parent 30766c75e8
commit 04551c39f6
4 changed files with 88 additions and 701 deletions
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4
libs/ardour/ardour/port_engine_shared.h
View File

@@ -81,8 +81,10 @@ class BackendPort
void update_connected_latency (bool for_playback);
private:
protected:
PortEngineSharedImpl &_backend;
private:
std::string _name;
std::string _pretty_name;
const PortFlags _flags;

3
libs/ardour/port_engine_shared.cc
View File

@@ -38,7 +38,8 @@ BackendPort::BackendPort (PortEngineSharedImpl &b, const std::string& name, Port
_playback_latency_range.max = 0;
}
BackendPort::~BackendPort () {
BackendPort::~BackendPort ()
{
disconnect_all ();
}

640
libs/backends/dummy/dummy_audiobackend.cc
View File

@@ -36,9 +36,10 @@
#include "pbd/error.h"
#include "pbd/compose.h"
#include "ardour/port_manager.h"
#include "pbd/i18n.h"
#include "ardour/port_manager.h"
using namespace ARDOUR;
static std::string s_instance_name;
@@ -57,6 +58,7 @@ static int64_t _x_get_monotonic_usec() {
DummyAudioBackend::DummyAudioBackend (AudioEngine& e, AudioBackendInfo& info)
: AudioBackend (e, info)
, PortEngineSharedImpl (e, s_instance_name)
, _running (false)
, _freewheel (false)
, _freewheeling (false)
@@ -261,18 +263,18 @@ DummyAudioBackend::set_buffer_size (uint32_t bs)
*/
LatencyRange lr;
lr.min = lr.max = _systemic_input_latency;
for (std::vector<DummyAudioPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it) {
for (std::vector<BackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it) {
set_latency_range (*it, false, lr);
}
for (std::vector<DummyMidiPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it) {
for (std::vector<BackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it) {
set_latency_range (*it, false, lr);
}
lr.min = lr.max = _systemic_output_latency;
for (std::vector<DummyAudioPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it) {
for (std::vector<BackendPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it) {
set_latency_range (*it, true, lr);
}
for (std::vector<DummyMidiPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it) {
for (std::vector<BackendPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it) {
set_latency_range (*it, true, lr);
}
@@ -441,21 +443,7 @@ DummyAudioBackend::_start (bool /*for_latency_measurement*/)
return BackendReinitializationError;
}
if (_ports.size () || _portmap.size ()) {
PBD::warning << _("DummyAudioBackend: recovering from unclean shutdown, port registry is not empty.") << endmsg;
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();
}
clear_ports ();
if (register_system_ports()) {
PBD::error << _("DummyAudioBackend: failed to register system ports.") << endmsg;
@@ -643,195 +631,6 @@ DummyAudioBackend::my_name () const
return _instance_name;
}
uint32_t
DummyAudioBackend::port_name_size () const
{
return 256;
}
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;
}
if (find_port (newname)) {
PBD::error << _("DummyBackend::set_port_name: Port with given name already exists") << endmsg;
return -1;
}
DummyPort* p = static_cast<DummyPort*>(port);
_portmap.erase (p->name());
_portmap.insert (make_pair (newname, p));
return p->set_name (newname);
}
std::string
DummyAudioBackend::get_port_name (PortEngine::PortHandle port) const
{
if (!valid_port (port)) {
PBD::error << _("DummyBackend::get_port_name: Invalid Port(s)") << endmsg;
return std::string ();
}
return static_cast<DummyPort*>(port)->name ();
}
PortFlags
DummyAudioBackend::get_port_flags (PortEngine::PortHandle port) const
{
if (!valid_port (port)) {
PBD::error << _("DummyBackend::get_port_flags: Invalid Port(s)") << endmsg;
return PortFlags (0);
}
return static_cast<DummyPort*>(port)->flags ();
}
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<DummyPort*>(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<DummyPort*>(port)->set_pretty_name (value);
return 0;
}
return -1;
}
PortEngine::PortHandle
DummyAudioBackend::get_port_by_name (const std::string& name) const
{
PortHandle port = (PortHandle) find_port (name);
return port;
}
int
DummyAudioBackend::get_ports (
const std::string& port_name_pattern,
DataType type, PortFlags flags,
std::vector<std::string>& port_names) const
{
int rv = 0;
regex_t port_regex;
bool use_regexp = false;
if (port_name_pattern.size () > 0) {
if (!regcomp (&port_regex, port_name_pattern.c_str (), REG_EXTENDED|REG_NOSUB)) {
use_regexp = true;
}
}
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;
}
}
}
if (use_regexp) {
regfree (&port_regex);
}
return rv;
}
DataType
DummyAudioBackend::port_data_type (PortEngine::PortHandle port) const
{
if (!valid_port (port)) {
return DataType::NIL;
}
return static_cast<DummyPort*>(port)->type ();
}
PortEngine::PortHandle
DummyAudioBackend::register_port (
const std::string& name,
ARDOUR::DataType type,
ARDOUR::PortFlags flags)
{
if (name.size () == 0) { return 0; }
if (flags & IsPhysical) { return 0; }
if (!_running) {
PBD::info << _("DummyBackend::register_port: Engine is not running.") << endmsg;
}
return add_port (_instance_name + ":" + name, type, flags);
}
PortEngine::PortHandle
DummyAudioBackend::add_port (
const std::string& name,
ARDOUR::DataType type,
ARDOUR::PortFlags flags)
{
assert(name.size ());
if (find_port (name)) {
PBD::error << _("DummyBackend::register_port: Port already exists:")
<< " (" << name << ")" << endmsg;
return 0;
}
DummyPort* port = NULL;
switch (type) {
case DataType::AUDIO:
port = new DummyAudioPort (*this, name, flags);
break;
case DataType::MIDI:
port = new DummyMidiPort (*this, name, flags);
break;
default:
PBD::error << _("DummyBackend::register_port: Invalid Data Type.") << endmsg;
return 0;
}
_ports.insert (port);
_portmap.insert (make_pair (name, port));
return port;
}
void
DummyAudioBackend::unregister_port (PortEngine::PortHandle port_handle)
{
if (!_running) {
PBD::info << _("DummyBackend::unregister_port: Engine is not running.") << endmsg;
assert (!valid_port (port_handle));
return;
}
DummyPort* port = static_cast<DummyPort*>(port_handle);
PortIndex::iterator i = std::find (_ports.begin(), _ports.end(), static_cast<DummyPort*>(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;
}
int
DummyAudioBackend::register_system_ports()
{
@@ -956,164 +755,42 @@ DummyAudioBackend::register_system_ports()
return 0;
}
void
DummyAudioBackend::unregister_ports (bool system_only)
{
_system_inputs.clear();
_system_outputs.clear();
_system_midi_in.clear();
_system_midi_out.clear();
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 (cur);
}
}
}
void
DummyAudioBackend::update_system_port_latecies ()
{
for (std::vector<DummyAudioPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it) {
for (std::vector<BackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it) {
(*it)->update_connected_latency (true);
}
for (std::vector<DummyAudioPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it) {
for (std::vector<BackendPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it) {
(*it)->update_connected_latency (false);
}
for (std::vector<DummyMidiPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it) {
for (std::vector<BackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it) {
(*it)->update_connected_latency (true);
}
for (std::vector<DummyMidiPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it) {
for (std::vector<BackendPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it) {
(*it)->update_connected_latency (false);
}
}
int
DummyAudioBackend::connect (const std::string& src, const std::string& dst)
BackendPort*
DummyAudioBackend::port_factory (std::string const & name, ARDOUR::DataType type, ARDOUR::PortFlags flags)
{
DummyPort* src_port = find_port (src);
DummyPort* dst_port = find_port (dst);
BackendPort* port = 0;
if (!src_port) {
PBD::error << _("DummyBackend::connect: Invalid Source port:")
<< " (" << src <<")" << endmsg;
return -1;
}
if (!dst_port) {
PBD::error << _("DummyBackend::connect: Invalid Destination port:")
<< " (" << dst <<")" << endmsg;
return -1;
}
return src_port->connect (dst_port);
}
int
DummyAudioBackend::disconnect (const std::string& src, const std::string& dst)
{
DummyPort* src_port = find_port (src);
DummyPort* dst_port = find_port (dst);
if (!src_port || !dst_port) {
PBD::error << _("DummyBackend::disconnect: Invalid Port(s)") << endmsg;
return -1;
}
return src_port->disconnect (dst_port);
}
int
DummyAudioBackend::connect (PortEngine::PortHandle src, const std::string& dst)
{
DummyPort* dst_port = find_port (dst);
if (!valid_port (src)) {
PBD::error << _("DummyBackend::connect: Invalid Source Port Handle") << endmsg;
return -1;
}
if (!dst_port) {
PBD::error << _("DummyBackend::connect: Invalid Destination Port")
<< " (" << dst << ")" << endmsg;
return -1;
}
return static_cast<DummyPort*>(src)->connect (dst_port);
}
int
DummyAudioBackend::disconnect (PortEngine::PortHandle src, const std::string& dst)
{
DummyPort* dst_port = find_port (dst);
if (!valid_port (src) || !dst_port) {
PBD::error << _("DummyBackend::disconnect: Invalid Port(s)") << endmsg;
return -1;
}
return static_cast<DummyPort*>(src)->disconnect (dst_port);
}
int
DummyAudioBackend::disconnect_all (PortEngine::PortHandle port)
{
if (!valid_port (port)) {
PBD::error << _("DummyBackend::disconnect_all: Invalid Port") << endmsg;
return -1;
}
static_cast<DummyPort*>(port)->disconnect_all ();
return 0;
}
bool
DummyAudioBackend::connected (PortEngine::PortHandle port, bool /* process_callback_safe*/)
{
if (!valid_port (port)) {
PBD::error << _("DummyBackend::disconnect_all: Invalid Port") << endmsg;
return false;
}
return static_cast<DummyPort*>(port)->is_connected ();
}
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<DummyPort*>(src)->is_connected (dst_port);
}
bool
DummyAudioBackend::physically_connected (PortEngine::PortHandle port, bool /*process_callback_safe*/)
{
if (!valid_port (port)) {
PBD::error << _("DummyBackend::physically_connected: Invalid Port") << endmsg;
return false;
}
return static_cast<DummyPort*>(port)->is_physically_connected ();
}
int
DummyAudioBackend::get_connections (PortEngine::PortHandle port, std::vector<std::string>& names, bool /*process_callback_safe*/)
{
if (!valid_port (port)) {
PBD::error << _("DummyBackend::get_connections: Invalid Port") << endmsg;
return -1;
switch (type) {
case DataType::AUDIO:
port = new DummyAudioPort (*this, name, flags);
break;
case DataType::MIDI:
port = new DummyMidiPort (*this, name, flags);
break;
default:
PBD::error << string_compose (_("%1::register_port: Invalid Data Type."), _instance_name) << endmsg;
return 0;
}
assert (0 == names.size ());
const std::set<DummyPort*>& connected_ports = static_cast<DummyPort*>(port)->get_connections ();
for (std::set<DummyPort*>::const_iterator i = connected_ports.begin (); i != connected_ports.end (); ++i) {
names.push_back ((*i)->name ());
}
return (int)names.size ();
return port;
}
/* MIDI */
@@ -1243,82 +920,6 @@ DummyAudioBackend::get_latency_range (PortEngine::PortHandle port, bool for_play
return r;
}
/* Discovering physical ports */
bool
DummyAudioBackend::port_is_physical (PortEngine::PortHandle port) const
{
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>& port_names)
{
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 ());
}
}
}
void
DummyAudioBackend::get_physical_inputs (DataType type, std::vector<std::string>& port_names)
{
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 ());
}
}
}
ChanCount
DummyAudioBackend::n_physical_outputs () const
{
int n_midi = 0;
int n_audio = 0;
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;
case DataType::MIDI: ++n_midi; break;
default: break;
}
}
}
ChanCount cc;
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 (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;
case DataType::MIDI: ++n_midi; break;
default: break;
}
}
}
ChanCount cc;
cc.set (DataType::AUDIO, n_audio);
cc.set (DataType::MIDI, n_midi);
return cc;
}
/* Getting access to the data buffer for a port */
void*
@@ -1351,11 +952,11 @@ DummyAudioBackend::main_process_thread ()
}
// re-set input buffers, generate on demand.
for (std::vector<DummyAudioPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it) {
(*it)->next_period();
for (std::vector<BackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it) {
static_cast<DummyPort*>(*it)->next_period();
}
for (std::vector<DummyMidiPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it) {
(*it)->next_period();
for (std::vector<BackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it) {
static_cast<DummyPort*>(*it)->next_period();
}
if (engine.process_callback (samples_per_period)) {
@@ -1366,28 +967,28 @@ DummyAudioBackend::main_process_thread ()
if (_device == _("Loopback") && _midi_mode != MidiToAudio) {
int opn = 0;
int opc = _system_outputs.size();
for (std::vector<DummyAudioPort*>::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);
for (std::vector<BackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it, ++opn) {
DummyAudioPort* op = static_cast<DummyAudioPort*> (_system_outputs[(opn % opc)]);
static_cast<DummyAudioPort*>(*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<DummyMidiPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it, ++opn) {
DummyMidiPort* op = _system_midi_out[(opn % opc)];
for (std::vector<BackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it, ++opn) {
DummyMidiPort* op = static_cast<DummyMidiPort*> (_system_midi_out[(opn % opc)]);
op->get_buffer(0); // mix-down
(*it)->set_loopback (op->const_buffer());
static_cast<DummyMidiPort*>(*it)->set_loopback (op->const_buffer());
}
}
else if (_midi_mode == MidiToAudio) {
int opn = 0;
int opc = _system_midi_out.size();
for (std::vector<DummyAudioPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it, ++opn) {
DummyMidiPort* op = _system_midi_out[(opn % opc)];
for (std::vector<BackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it, ++opn) {
DummyMidiPort* op = static_cast<DummyMidiPort*> (_system_midi_out[(opn % opc)]);
op->get_buffer(0); // mix-down
(*it)->midi_to_wavetable (op->const_buffer(), samples_per_period);
static_cast<DummyAudioPort*>(*it)->midi_to_wavetable (op->const_buffer(), samples_per_period);
}
}
@@ -1515,158 +1116,17 @@ extern "C" ARDOURBACKEND_API ARDOUR::AudioBackendInfo* descriptor ()
/******************************************************************************/
DummyPort::DummyPort (DummyAudioBackend &b, const std::string& name, PortFlags flags)
: _dummy_backend (b)
, _name (name)
, _flags (flags)
: BackendPort (b, name, flags)
, _rseed (0)
, _gen_cycle (false)
, _engine (b)
{
_capture_latency_range.min = 0;
_capture_latency_range.max = 0;
_playback_latency_range.min = 0;
_playback_latency_range.max = 0;
_dummy_backend.port_connect_add_remove_callback();
_backend.port_connect_add_remove_callback();
}
DummyPort::~DummyPort () {
disconnect_all ();
_dummy_backend.port_connect_add_remove_callback();
}
int DummyPort::connect (DummyPort *port)
DummyPort::~DummyPort ()
{
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)) {
#if 0 // don't bother to warn about this for now. just ignore it
PBD::error << _("DummyPort::connect (): ports are already connected:")
<< " (" << name () << ") -> (" << port->name () << ")"
<< endmsg;
#endif
return -1;
}
_connect (port, true);
return 0;
}
void DummyPort::_connect (DummyPort *port, bool callback)
{
_connections.insert (port);
if (callback) {
port->_connect (this, false);
_dummy_backend.port_connect_callback (name(), port->name(), true);
}
}
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::set<DummyPort*>::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);
}
}
void DummyPort::disconnect_all ()
{
while (!_connections.empty ()) {
std::set<DummyPort*>::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 _connections.find (const_cast<DummyPort *>(port)) != _connections.end ();
}
bool DummyPort::is_physically_connected () const
{
for (std::set<DummyPort*>::const_iterator it = _connections.begin (); it != _connections.end (); ++it) {
if ((*it)->is_physical ()) {
return true;
}
}
return false;
}
void
DummyPort::set_latency_range (const LatencyRange &latency_range, bool for_playback)
{
if (for_playback) {
_playback_latency_range = latency_range;
} else {
_capture_latency_range = latency_range;
}
for (std::set<DummyPort*>::const_iterator it = _connections.begin (); it != _connections.end (); ++it) {
if ((*it)->is_physical ()) {
(*it)->update_connected_latency (is_input ());
}
}
}
void
DummyPort::update_connected_latency (bool for_playback)
{
LatencyRange lr;
lr.min = lr.max = 0;
for (std::set<DummyPort*>::const_iterator it = _connections.begin (); it != _connections.end (); ++it) {
LatencyRange l;
l = (*it)->latency_range (for_playback);
lr.min = std::max (lr.min, l.min);
lr.max = std::max (lr.max, l.max);
}
set_latency_range (lr, for_playback);
_backend.port_connect_add_remove_callback();
}
void DummyPort::setup_random_number_generator ()
@@ -1712,8 +1172,8 @@ DummyPort::randf ()
pframes_t
DummyPort::pulse_position () const
{
samplecnt_t sr = _dummy_backend.sample_rate ();
samplepos_t st = _dummy_backend.sample_time_at_cycle_start();
samplecnt_t sr = _engine.sample_rate ();
samplepos_t st = _engine.sample_time_at_cycle_start();
return (sr - (st % sr)) % sr;
}
@@ -2165,8 +1625,8 @@ void DummyAudioPort::generate (const pframes_t n_samples)
void* DummyAudioPort::get_buffer (pframes_t n_samples)
{
if (is_input ()) {
const std::set<DummyPort *>& connections = get_connections ();
std::set<DummyPort*>::const_iterator it = connections.begin ();
const std::set<BackendPort *>& connections = get_connections ();
std::set<BackendPort*>::const_iterator it = connections.begin ();
if (it == connections.end ()) {
memset (_buffer, 0, n_samples * sizeof (Sample));
} else {
@@ -2301,8 +1761,8 @@ void* DummyMidiPort::get_buffer (pframes_t n_samples)
{
if (is_input ()) {
_buffer.clear ();
const std::set<DummyPort*>& connections = get_connections ();
for (std::set<DummyPort*>::const_iterator i = connections.begin ();
const std::set<BackendPort*>& connections = get_connections ();
for (std::set<BackendPort*>::const_iterator i = connections.begin ();
i != connections.end ();
++i) {
DummyMidiPort * source = static_cast<DummyMidiPort*>(*i);

142
libs/backends/dummy/dummy_audiobackend.h
View File

@@ -37,6 +37,7 @@
#include "ardour/types.h"
#include "ardour/audio_backend.h"
#include "ardour/dsp_load_calculator.h"
#include "ardour/port_engine_shared.h"
namespace ARDOUR {
@@ -69,59 +70,14 @@ class DummyMidiEvent {
typedef std::vector<boost::shared_ptr<DummyMidiEvent> > DummyMidiBuffer;
class DummyPort {
class DummyPort : public BackendPort {
protected:
DummyPort (DummyAudioBackend &b, const std::string&, PortFlags);
public:
virtual ~DummyPort ();
const std::string& name () const { return _name; }
const std::string& pretty_name () const { return _pretty_name; }
PortFlags flags () const { return _flags; }
int set_name (const std::string &name) { _name = name; return 0; }
int set_pretty_name (const std::string &name) { _pretty_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::set<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;
void next_period () { _gen_cycle = false; }
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);
void update_connected_latency (bool for_playback);
private:
DummyAudioBackend &_dummy_backend;
std::string _name;
std::string _pretty_name;
const PortFlags _flags;
LatencyRange _capture_latency_range;
LatencyRange _playback_latency_range;
std::set<DummyPort*> _connections;
void _connect (DummyPort* , bool);
void _disconnect (DummyPort* , bool);
protected:
/* random number generator */
void setup_random_number_generator ();
@@ -135,6 +91,9 @@ class DummyPort {
volatile bool _gen_cycle;
Glib::Threads::Mutex generator_lock;
private:
AudioBackend& _engine;
}; // class DummyPort
class DummyAudioPort : public DummyPort {
@@ -227,7 +186,7 @@ class DummyMidiPort : public DummyPort {
DummyMidiData::MIDISequence const * _midi_seq_dat;
}; // class DummyMidiPort
class DummyAudioBackend : public AudioBackend {
class DummyAudioBackend : public AudioBackend, public PortEngineSharedImpl {
friend class DummyPort;
public:
DummyAudioBackend (AudioEngine& e, AudioBackendInfo& info);
@@ -326,33 +285,35 @@ class DummyAudioBackend : public AudioBackend {
void* private_handle () const;
const std::string& my_name () const;
uint32_t port_name_size () const;
int set_port_name (PortHandle, const std::string&);
std::string get_port_name (PortHandle) const;
PortFlags get_port_flags (PortHandle) const;
PortHandle get_port_by_name (const std::string&) const;
/* PortEngine API - forwarded to PortEngineSharedImpl */
int get_port_property (PortHandle, const std::string& key, std::string& value, std::string& type) const;
int set_port_property (PortHandle, const std::string& key, const std::string& value, const std::string& type);
bool port_is_physical (PortEngine::PortHandle ph) const { return PortEngineSharedImpl::port_is_physical (ph); }
void get_physical_outputs (DataType type, std::vector<std::string>& results) { PortEngineSharedImpl::get_physical_outputs (type, results); }
void get_physical_inputs (DataType type, std::vector<std::string>& results) { PortEngineSharedImpl::get_physical_inputs (type, results); }
ChanCount n_physical_outputs () const { return PortEngineSharedImpl::n_physical_outputs (); }
ChanCount n_physical_inputs () const { return PortEngineSharedImpl::n_physical_inputs (); }
uint32_t port_name_size () const { return PortEngineSharedImpl::port_name_size(); }
int set_port_name (PortEngine::PortHandle ph, const std::string& name) { return PortEngineSharedImpl::set_port_name (ph, name); }
std::string get_port_name (PortEngine::PortHandle ph) const { return PortEngineSharedImpl::get_port_name (ph); }
PortFlags get_port_flags (PortEngine::PortHandle ph) const { return PortEngineSharedImpl::get_port_flags (ph); }
PortEngine::PortHandle get_port_by_name (std::string const & name) const { return PortEngineSharedImpl::get_port_by_name (name); }
int get_port_property (PortEngine::PortHandle ph, const std::string& key, std::string& value, std::string& type) const { return PortEngineSharedImpl::get_port_property (ph, key, value, type); }
int set_port_property (PortEngine::PortHandle ph, const std::string& key, const std::string& value, const std::string& type) { return PortEngineSharedImpl::set_port_property (ph, key, value, type); }
int get_ports (const std::string& port_name_pattern, DataType type, PortFlags flags, std::vector<std::string>& results) const { return PortEngineSharedImpl::get_ports (port_name_pattern, type, flags, results); }
DataType port_data_type (PortEngine::PortHandle ph) const { return PortEngineSharedImpl::port_data_type (ph); }
PortEngine::PortHandle register_port (const std::string& shortname, ARDOUR::DataType type, ARDOUR::PortFlags flags) { return PortEngineSharedImpl::register_port (shortname, type, flags); }
void unregister_port (PortHandle ph) { if (!_running) return; PortEngineSharedImpl::unregister_port (ph); }
int connect (const std::string& src, const std::string& dst) { return PortEngineSharedImpl::connect (src, dst); }
int disconnect (const std::string& src, const std::string& dst) { return PortEngineSharedImpl::disconnect (src, dst); }
int connect (PortEngine::PortHandle ph, const std::string& other) { return PortEngineSharedImpl::connect (ph, other); }
int disconnect (PortEngine::PortHandle ph, const std::string& other) { return PortEngineSharedImpl::disconnect (ph, other); }
int disconnect_all (PortEngine::PortHandle ph) { return PortEngineSharedImpl::disconnect_all (ph); }
bool connected (PortEngine::PortHandle ph, bool process_callback_safe) { return PortEngineSharedImpl::connected (ph, process_callback_safe); }
bool connected_to (PortEngine::PortHandle ph, const std::string& other, bool process_callback_safe) { return PortEngineSharedImpl::connected_to (ph, other, process_callback_safe); }
bool physically_connected (PortEngine::PortHandle ph, bool process_callback_safe) { return PortEngineSharedImpl::physically_connected (ph, process_callback_safe); }
int get_connections (PortEngine::PortHandle ph, std::vector<std::string>& results, bool process_callback_safe) { return PortEngineSharedImpl::get_connections (ph, results, process_callback_safe); }
int get_ports (const std::string& port_name_pattern, DataType type, PortFlags flags, std::vector<std::string>&) const;
DataType port_data_type (PortHandle) const;
PortHandle register_port (const std::string& shortname, ARDOUR::DataType, ARDOUR::PortFlags);
void unregister_port (PortHandle);
int connect (const std::string& src, const std::string& dst);
int disconnect (const std::string& src, const std::string& dst);
int connect (PortHandle, const std::string&);
int disconnect (PortHandle, const std::string&);
int disconnect_all (PortHandle);
bool connected (PortHandle, bool process_callback_safe);
bool connected_to (PortHandle, const std::string&, bool process_callback_safe);
bool physically_connected (PortHandle, bool process_callback_safe);
int get_connections (PortHandle, std::vector<std::string>&, bool process_callback_safe);
/* MIDI */
int midi_event_get (pframes_t& timestamp, size_t& size, uint8_t const** buf, void* port_buffer, uint32_t event_index);
@@ -372,14 +333,6 @@ class DummyAudioBackend : public AudioBackend {
void set_latency_range (PortHandle, bool for_playback, LatencyRange);
LatencyRange get_latency_range (PortHandle, bool for_playback);
/* Discovering physical ports */
bool port_is_physical (PortHandle) const;
void get_physical_outputs (DataType type, std::vector<std::string>&);
void get_physical_inputs (DataType type, std::vector<std::string>&);
ChanCount n_physical_outputs () const;
ChanCount n_physical_inputs () const;
/* Getting access to the data buffer for a port */
void* get_buffer (PortHandle, pframes_t);
@@ -449,28 +402,9 @@ class DummyAudioBackend : public AudioBackend {
};
/* port engine */
PortHandle add_port (const std::string& shortname, ARDOUR::DataType, ARDOUR::PortFlags);
int register_system_ports ();
void unregister_ports (bool system_only = false);
void update_system_port_latecies ();
std::vector<DummyAudioPort *> _system_inputs;
std::vector<DummyAudioPort *> _system_outputs;
std::vector<DummyMidiPort *> _system_midi_in;
std::vector<DummyMidiPort *> _system_midi_out;
struct SortByPortName
{
bool operator ()(const DummyPort* lhs, const DummyPort* rhs) const
{
return PBD::naturally_less (lhs->name ().c_str (), rhs->name ().c_str ());
}
};
typedef std::map<std::string, DummyPort *> PortMap; // fast lookup in _ports
typedef std::set<DummyPort *, SortByPortName> PortIndex; // fast lookup in _ports
PortMap _portmap;
PortIndex _ports;
struct PortConnectData {
std::string a;
@@ -497,17 +431,7 @@ class DummyAudioBackend : public AudioBackend {
pthread_mutex_unlock (&_port_callback_mutex);
}
bool valid_port (PortHandle port) const {
return std::find (_ports.begin(), _ports.end(), static_cast<DummyPort*>(port)) != _ports.end ();
}
DummyPort* find_port (const std::string& port_name) const {
PortMap::const_iterator it = _portmap.find (port_name);
if (it == _portmap.end()) {
return NULL;
}
return (*it).second;
}
BackendPort* port_factory (std::string const & name, ARDOUR::DataType type, ARDOUR::PortFlags);
}; // class DummyAudioBackend