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use new PortEngineSharedImpl in AlsaAudioBackend

This commit is contained in:
Paul Davis 2020-04-02 14:26:44 -06:00
parent 9ea6f598bd
commit 6c2e30b790
2 changed files with 100 additions and 783 deletions
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715
libs/backends/alsa/alsa_audiobackend.cc
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@ -55,6 +55,7 @@ ALSADeviceInfo AlsaAudioBackend::_output_audio_device_info;
AlsaAudioBackend::AlsaAudioBackend (AudioEngine& e, AudioBackendInfo& info)
: AudioBackend (e, info)
, PortEngineSharedImpl (e, s_instance_name)
, _pcmi (0)
, _run (false)
, _active (false)
@ -75,8 +76,6 @@ AlsaAudioBackend::AlsaAudioBackend (AudioEngine& e, AudioBackendInfo& info)
, _midi_device_thread_active (false)
, _dsp_load (0)
, _processed_samples (0)
, _portmap (new PortMap)
, _ports (new PortIndex)
, _port_change_flag (false)
{
_instance_name = s_instance_name;
@ -465,12 +464,12 @@ AlsaAudioBackend::update_systemic_audio_latencies ()
LatencyRange lr;
lr.min = lr.max = lcpp + (_measure_latency ? 0 : _systemic_audio_input_latency);
for (std::vector<AlsaPort*>::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);
}
lr.min = lr.max = (_measure_latency ? 0 : _systemic_audio_output_latency);
for (std::vector<AlsaPort*>::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);
}
update_latencies ();
@ -481,7 +480,7 @@ AlsaAudioBackend::update_systemic_midi_latencies ()
{
pthread_mutex_lock (&_device_port_mutex);
uint32_t i = 0;
for (std::vector<AlsaPort*>::iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it, ++i) {
for (std::vector<BackendPort*>::iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it, ++i) {
assert (_rmidi_out.size() > i);
AlsaMidiOut *rm = _rmidi_out.at(i);
struct AlsaMidiDeviceInfo * nfo = midi_device_info (rm->name());
@ -492,7 +491,7 @@ AlsaAudioBackend::update_systemic_midi_latencies ()
}
i = 0;
for (std::vector<AlsaPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it, ++i) {
for (std::vector<BackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it, ++i) {
assert (_rmidi_in.size() > i);
AlsaMidiIO *rm = _rmidi_in.at(i);
struct AlsaMidiDeviceInfo * nfo = midi_device_info (rm->name());
@ -686,7 +685,7 @@ AlsaAudioBackend::set_midi_device_enabled (std::string const device, bool enable
// remove all ports provided by the given device
pthread_mutex_lock (&_device_port_mutex);
uint32_t i = 0;
for (std::vector<AlsaPort*>::iterator it = _system_midi_out.begin (); it != _system_midi_out.end ();) {
for (std::vector<BackendPort*>::iterator it = _system_midi_out.begin (); it != _system_midi_out.end ();) {
assert (_rmidi_out.size() > i);
AlsaMidiOut *rm = _rmidi_out.at(i);
if (rm->name () != device) { ++it; ++i; continue; }
@ -699,7 +698,7 @@ AlsaAudioBackend::set_midi_device_enabled (std::string const device, bool enable
}
i = 0;
for (std::vector<AlsaPort*>::iterator it = _system_midi_in.begin (); it != _system_midi_in.end ();) {
for (std::vector<BackendPort*>::iterator it = _system_midi_in.begin (); it != _system_midi_in.end ();) {
assert (_rmidi_in.size() > i);
AlsaMidiIn *rm = _rmidi_in.at(i);
if (rm->name () != device) { ++it; ++i; continue; }
@ -755,23 +754,7 @@ AlsaAudioBackend::_start (bool for_latency_measurement)
return BackendReinitializationError;
}
{
RCUWriter<PortIndex> index_writer (_ports);
RCUWriter<PortMap> map_writer (_portmap);
boost::shared_ptr<PortIndex> ps = index_writer.get_copy();
boost::shared_ptr<PortMap> pm = map_writer.get_copy ();
if (ps->size () || pm->size ()) {
PBD::warning << _("AlsaAudioBackend: recovering from unclean shutdown, port registry is not empty.") << endmsg;
_system_inputs.clear();
_system_outputs.clear();
_system_midi_in.clear();
_system_midi_out.clear();
ps->clear();
pm->clear();
}
}
clear_ports ();
/* reset internal state */
_dsp_load = 0;
@ -1191,219 +1174,6 @@ AlsaAudioBackend::my_name () const
return _instance_name;
}
uint32_t
AlsaAudioBackend::port_name_size () const
{
return 256;
}
int
AlsaAudioBackend::set_port_name (PortEngine::PortHandle port, const std::string& name)
{
std::string newname (_instance_name + ":" + name);
if (!valid_port (port)) {
PBD::error << _("AlsaBackend::set_port_name: Invalid Port") << endmsg;
return -1;
}
if (find_port (newname)) {
PBD::error << _("AlsaBackend::set_port_name: Port with given name already exists") << endmsg;
return -1;
}
AlsaPort* p = static_cast<AlsaPort*>(port);
{
RCUWriter<PortMap> map_writer (_portmap);
boost::shared_ptr<PortMap> pm = map_writer.get_copy ();
pm->erase (p->name());
pm->insert (make_pair (newname, p));
}
return p->set_name (newname);
}
std::string
AlsaAudioBackend::get_port_name (PortEngine::PortHandle port) const
{
if (!valid_port (port)) {
PBD::warning << _("AlsaBackend::get_port_name: Invalid Port(s)") << endmsg;
return std::string ();
}
return static_cast<AlsaPort*>(port)->name ();
}
PortFlags
AlsaAudioBackend::get_port_flags (PortEngine::PortHandle port) const
{
if (!valid_port (port)) {
PBD::warning << _("AlsaBackend::get_port_flags: Invalid Port(s)") << endmsg;
return PortFlags (0);
}
return static_cast<AlsaPort*>(port)->flags ();
}
int
AlsaAudioBackend::get_port_property (PortHandle port, const std::string& key, std::string& value, std::string& type) const
{
if (!valid_port (port)) {
PBD::warning << _("AlsaBackend::get_port_property: Invalid Port(s)") << endmsg;
return -1;
}
if (key == "http://jackaudio.org/metadata/pretty-name") {
type = "";
value = static_cast<AlsaPort*>(port)->pretty_name ();
if (!value.empty()) {
return 0;
}
}
return -1;
}
int
AlsaAudioBackend::set_port_property (PortHandle port, const std::string& key, const std::string& value, const std::string& type)
{
if (!valid_port (port)) {
PBD::warning << _("AlsaBackend::set_port_property: Invalid Port(s)") << endmsg;
return -1;
}
if (key == "http://jackaudio.org/metadata/pretty-name" && type.empty ()) {
static_cast<AlsaPort*>(port)->set_pretty_name (value);
return 0;
}
return -1;
}
PortEngine::PortHandle
AlsaAudioBackend::get_port_by_name (const std::string& name) const
{
PortHandle port = (PortHandle) find_port (name);
return port;
}
int
AlsaAudioBackend::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;
}
}
boost::shared_ptr<PortIndex> p = _ports.reader ();
for (PortIndex::const_iterator i = p->begin (); i != p->end (); ++i) {
AlsaPort* 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
AlsaAudioBackend::port_data_type (PortEngine::PortHandle port) const
{
if (!valid_port (port)) {
return DataType::NIL;
}
return static_cast<AlsaPort*>(port)->type ();
}
PortEngine::PortHandle
AlsaAudioBackend::register_port (
const std::string& name,
ARDOUR::DataType type,
ARDOUR::PortFlags flags)
{
if (name.size () == 0) { return 0; }
if (flags & IsPhysical) { return 0; }
return add_port (_instance_name + ":" + name, type, flags);
}
PortEngine::PortHandle
AlsaAudioBackend::add_port (
const std::string& name,
ARDOUR::DataType type,
ARDOUR::PortFlags flags)
{
assert(name.size ());
if (find_port (name)) {
PBD::error << _("AlsaBackend::register_port: Port already exists:")
<< " (" << name << ")" << endmsg;
return 0;
}
AlsaPort* port = NULL;
switch (type) {
case DataType::AUDIO:
port = new AlsaAudioPort (*this, name, flags);
break;
case DataType::MIDI:
port = new AlsaMidiPort (*this, name, flags);
break;
default:
PBD::error << _("AlsaBackend::register_port: Invalid Data Type.") << endmsg;
return 0;
}
{
RCUWriter<PortIndex> index_writer (_ports);
RCUWriter<PortMap> map_writer (_portmap);
boost::shared_ptr<PortIndex> ps = index_writer.get_copy ();
boost::shared_ptr<PortMap> pm = map_writer.get_copy ();
ps->insert (port);
pm->insert (make_pair (name, port));
}
return port;
}
void
AlsaAudioBackend::unregister_port (PortEngine::PortHandle port_handle)
{
if (!_run) {
return;
}
AlsaPort* port = static_cast<AlsaPort*>(port_handle);
{
RCUWriter<PortIndex> index_writer (_ports);
RCUWriter<PortMap> map_writer (_portmap);
boost::shared_ptr<PortIndex> ps = index_writer.get_copy ();
boost::shared_ptr<PortMap> pm = map_writer.get_copy ();
PortIndex::iterator i = std::find (ps->begin(), ps->end(), static_cast<AlsaPort*>(port_handle));
if (i == ps->end ()) {
PBD::error << _("AlsaBackend::unregister_port: Failed to find port") << endmsg;
return;
}
disconnect_all(port_handle);
pm->erase (port->name());
ps->erase (i);
}
delete port;
}
int
AlsaAudioBackend::register_system_audio_ports()
{
@ -1422,7 +1192,7 @@ AlsaAudioBackend::register_system_audio_ports()
PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsOutput | IsPhysical | IsTerminal));
if (!p) return -1;
set_latency_range (p, false, lr);
AlsaPort *ap = static_cast<AlsaPort*>(p);
BackendPort *ap = static_cast<BackendPort*>(p);
//ap->set_pretty_name ("")
_system_inputs.push_back (ap);
}
@ -1434,7 +1204,7 @@ AlsaAudioBackend::register_system_audio_ports()
PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsInput | IsPhysical | IsTerminal));
if (!p) return -1;
set_latency_range (p, true, lr);
AlsaPort *ap = static_cast<AlsaPort*>(p);
BackendPort *ap = static_cast<BackendPort*>(p);
//ap->set_pretty_name ("")
_system_outputs.push_back (ap);
}
@ -1583,18 +1353,18 @@ AlsaAudioBackend::stop_listen_for_midi_device_changes ()
void
AlsaAudioBackend::update_system_port_latecies ()
{
for (std::vector<AlsaPort*>::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<AlsaPort*>::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);
}
pthread_mutex_lock (&_device_port_mutex);
for (std::vector<AlsaPort*>::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<AlsaPort*>::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);
}
pthread_mutex_unlock (&_device_port_mutex);
@ -1603,10 +1373,10 @@ AlsaAudioBackend::update_system_port_latecies ()
if ((*s)->dead) {
continue;
}
for (std::vector<AlsaPort*>::const_iterator it = (*s)->inputs.begin (); it != (*s)->inputs.end (); ++it) {
for (std::vector<BackendPort*>::const_iterator it = (*s)->inputs.begin (); it != (*s)->inputs.end (); ++it) {
(*it)->update_connected_latency (true);
}
for (std::vector<AlsaPort*>::const_iterator it = (*s)->outputs.begin (); it != (*s)->outputs.end (); ++it) {
for (std::vector<BackendPort*>::const_iterator it = (*s)->outputs.begin (); it != (*s)->outputs.end (); ++it) {
(*it)->update_connected_latency (false);
}
}
@ -1703,7 +1473,7 @@ AlsaAudioBackend::register_system_midi_ports(const std::string device)
lr.min = lr.max = (nfo->systemic_output_latency);
set_latency_range (p, true, lr);
static_cast<AlsaMidiPort*>(p)->set_n_periods(_periods_per_cycle); // TODO check MIDI alignment
AlsaPort *ap = static_cast<AlsaPort*>(p);
BackendPort *ap = static_cast<BackendPort*>(p);
ap->set_pretty_name (replace_name_io (i->first, false));
pthread_mutex_lock (&_device_port_mutex);
_system_midi_out.push_back (ap);
@ -1750,7 +1520,7 @@ AlsaAudioBackend::register_system_midi_ports(const std::string device)
LatencyRange lr;
lr.min = lr.max = (nfo->systemic_input_latency);
set_latency_range (p, false, lr);
AlsaPort *ap = static_cast<AlsaPort*>(p);
BackendPort *ap = static_cast<BackendPort*>(p);
ap->set_pretty_name (replace_name_io (i->first, true));
pthread_mutex_lock (&_device_port_mutex);
_system_midi_in.push_back (ap);
@ -1762,155 +1532,6 @@ AlsaAudioBackend::register_system_midi_ports(const std::string device)
return 0;
}
void
AlsaAudioBackend::unregister_ports (bool system_only)
{
_system_inputs.clear();
_system_outputs.clear();
_system_midi_in.clear();
_system_midi_out.clear();
RCUWriter<PortIndex> index_writer (_ports);
RCUWriter<PortMap> map_writer (_portmap);
boost::shared_ptr<PortIndex> ps = index_writer.get_copy ();
boost::shared_ptr<PortMap> pm = map_writer.get_copy ();
for (PortIndex::iterator i = ps->begin (); i != ps->end ();) {
PortIndex::iterator cur = i++;
AlsaPort* port = *cur;
if (! system_only || (port->is_physical () && port->is_terminal ())) {
port->disconnect_all ();
pm->erase (port->name());
delete port;
ps->erase (cur);
}
}
}
int
AlsaAudioBackend::connect (const std::string& src, const std::string& dst)
{
AlsaPort* src_port = find_port (src);
AlsaPort* dst_port = find_port (dst);
if (!src_port) {
PBD::error << _("AlsaBackend::connect: Invalid Source port:")
<< " (" << src <<")" << endmsg;
return -1;
}
if (!dst_port) {
PBD::error << _("AlsaBackend::connect: Invalid Destination port:")
<< " (" << dst <<")" << endmsg;
return -1;
}
return src_port->connect (dst_port);
}
int
AlsaAudioBackend::disconnect (const std::string& src, const std::string& dst)
{
AlsaPort* src_port = find_port (src);
AlsaPort* dst_port = find_port (dst);
if (!src_port || !dst_port) {
PBD::error << _("AlsaBackend::disconnect: Invalid Port(s)") << endmsg;
return -1;
}
return src_port->disconnect (dst_port);
}
int
AlsaAudioBackend::connect (PortEngine::PortHandle src, const std::string& dst)
{
AlsaPort* dst_port = find_port (dst);
if (!valid_port (src)) {
PBD::error << _("AlsaBackend::connect: Invalid Source Port Handle") << endmsg;
return -1;
}
if (!dst_port) {
PBD::error << _("AlsaBackend::connect: Invalid Destination Port")
<< " (" << dst << ")" << endmsg;
return -1;
}
return static_cast<AlsaPort*>(src)->connect (dst_port);
}
int
AlsaAudioBackend::disconnect (PortEngine::PortHandle src, const std::string& dst)
{
AlsaPort* dst_port = find_port (dst);
if (!valid_port (src) || !dst_port) {
PBD::error << _("AlsaBackend::disconnect: Invalid Port(s)") << endmsg;
return -1;
}
return static_cast<AlsaPort*>(src)->disconnect (dst_port);
}
int
AlsaAudioBackend::disconnect_all (PortEngine::PortHandle port)
{
if (!valid_port (port)) {
PBD::error << _("AlsaBackend::disconnect_all: Invalid Port") << endmsg;
return -1;
}
static_cast<AlsaPort*>(port)->disconnect_all ();
return 0;
}
bool
AlsaAudioBackend::connected (PortEngine::PortHandle port, bool /* process_callback_safe*/)
{
if (!valid_port (port)) {
PBD::error << _("AlsaBackend::disconnect_all: Invalid Port") << endmsg;
return false;
}
return static_cast<AlsaPort*>(port)->is_connected ();
}
bool
AlsaAudioBackend::connected_to (PortEngine::PortHandle src, const std::string& dst, bool /*process_callback_safe*/)
{
AlsaPort* dst_port = find_port (dst);
#ifndef NDEBUG
if (!valid_port (src) || !dst_port) {
PBD::error << _("AlsaBackend::connected_to: Invalid Port") << endmsg;
return false;
}
#endif
return static_cast<AlsaPort*>(src)->is_connected (dst_port);
}
bool
AlsaAudioBackend::physically_connected (PortEngine::PortHandle port, bool /*process_callback_safe*/)
{
if (!valid_port (port)) {
PBD::error << _("AlsaBackend::physically_connected: Invalid Port") << endmsg;
return false;
}
return static_cast<AlsaPort*>(port)->is_physically_connected ();
}
int
AlsaAudioBackend::get_connections (PortEngine::PortHandle port, std::vector<std::string>& names, bool /*process_callback_safe*/)
{
if (!valid_port (port)) {
PBD::error << _("AlsaBackend::get_connections: Invalid Port") << endmsg;
return -1;
}
assert (0 == names.size ());
const std::set<AlsaPort*>& connected_ports = static_cast<AlsaPort*>(port)->get_connections ();
for (std::set<AlsaPort*>::const_iterator i = connected_ports.begin (); i != connected_ports.end (); ++i) {
names.push_back ((*i)->name ());
}
return (int)names.size ();
}
/* MIDI */
int
AlsaAudioBackend::midi_event_get (
@ -2003,7 +1624,7 @@ AlsaAudioBackend::set_latency_range (PortEngine::PortHandle port, bool for_playb
if (!valid_port (port)) {
PBD::error << _("AlsaPort::set_latency_range (): invalid port.") << endmsg;
}
static_cast<AlsaPort*>(port)->set_latency_range (latency_range, for_playback);
static_cast<BackendPort*>(port)->set_latency_range (latency_range, for_playback);
}
LatencyRange
@ -2016,7 +1637,7 @@ AlsaAudioBackend::get_latency_range (PortEngine::PortHandle port, bool for_playb
r.max = 0;
return r;
}
AlsaPort *p = static_cast<AlsaPort*>(port);
BackendPort *p = static_cast<BackendPort*>(port);
assert(p);
r = p->latency_range (for_playback);
@ -2033,90 +1654,24 @@ AlsaAudioBackend::get_latency_range (PortEngine::PortHandle port, bool for_playb
return r;
}
/* Discovering physical ports */
bool
AlsaAudioBackend::port_is_physical (PortEngine::PortHandle port) const
BackendPort*
AlsaAudioBackend::port_factory (std::string const & name, ARDOUR::DataType type, ARDOUR::PortFlags flags)
{
if (!valid_port (port)) {
PBD::error << _("AlsaPort::port_is_physical (): invalid port.") << endmsg;
return false;
BackendPort* port = 0;
switch (type) {
case DataType::AUDIO:
port = new AlsaAudioPort (*this, name, flags);
break;
case DataType::MIDI:
port = new AlsaMidiPort (*this, name, flags);
break;
default:
PBD::error << string_compose (_("%1::register_port: Invalid Data Type."), _instance_name) << endmsg;
return 0;
}
return static_cast<AlsaPort*>(port)->is_physical ();
}
void
AlsaAudioBackend::get_physical_outputs (DataType type, std::vector<std::string>& port_names)
{
boost::shared_ptr<PortIndex> p = _ports.reader();
for (PortIndex::iterator i = p->begin (); i != p->end (); ++i) {
AlsaPort* port = *i;
if ((port->type () == type) && port->is_input () && port->is_physical ()) {
port_names.push_back (port->name ());
}
}
}
void
AlsaAudioBackend::get_physical_inputs (DataType type, std::vector<std::string>& port_names)
{
boost::shared_ptr<PortIndex> p = _ports.reader();
for (PortIndex::iterator i = p->begin (); i != p->end (); ++i) {
AlsaPort* port = *i;
if ((port->type () == type) && port->is_output () && port->is_physical ()) {
port_names.push_back (port->name ());
}
}
}
ChanCount
AlsaAudioBackend::n_physical_outputs () const
{
int n_midi = 0;
int n_audio = 0;
boost::shared_ptr<PortIndex> p = _ports.reader();
for (PortIndex::const_iterator i = p->begin (); i != p->end (); ++i) {
AlsaPort* 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
AlsaAudioBackend::n_physical_inputs () const
{
int n_midi = 0;
int n_audio = 0;
boost::shared_ptr<PortIndex> p = _ports.reader();
for (PortIndex::const_iterator i = p->begin (); i != p->end (); ++i) {
AlsaPort* 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;
return port;
}
/* Getting access to the data buffer for a port */
@ -2126,7 +1681,7 @@ AlsaAudioBackend::get_buffer (PortEngine::PortHandle port, pframes_t nframes)
{
assert (port);
assert (valid_port (port));
return static_cast<AlsaPort*>(port)->get_buffer (nframes);
return static_cast<BackendPort*>(port)->get_buffer (nframes);
}
/* Engine Process */
@ -2155,7 +1710,7 @@ AlsaAudioBackend::main_process_thread ()
/* warm up */
int cnt = std::max (8, (int)(_samplerate / _samples_per_period) / 2);
for (int w = 0; w < cnt; ++w) {
for (std::vector<AlsaPort*>::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) {
memset ((*it)->get_buffer (_samples_per_period), 0, _samples_per_period * sizeof (Sample));
}
if (engine.process_callback (_samples_per_period)) {
@ -2212,10 +1767,10 @@ AlsaAudioBackend::main_process_thread ()
if ((*s)->halt) {
/* slave died, unregister its ports (not rt-safe, but no matter) */
PBD::error << _("ALSA Slave device halted") << endmsg;
for (std::vector<AlsaPort*>::const_iterator it = (*s)->inputs.begin (); it != (*s)->inputs.end (); ++it) {
for (std::vector<BackendPort*>::const_iterator it = (*s)->inputs.begin (); it != (*s)->inputs.end (); ++it) {
unregister_port (*it);
}
for (std::vector<AlsaPort*>::const_iterator it = (*s)->outputs.begin (); it != (*s)->outputs.end (); ++it) {
for (std::vector<BackendPort*>::const_iterator it = (*s)->outputs.begin (); it != (*s)->outputs.end (); ++it) {
unregister_port (*it);
}
(*s)->inputs.clear ();
@ -2255,7 +1810,7 @@ AlsaAudioBackend::main_process_thread ()
no_proc_errors = 0;
_pcmi->capt_init (_samples_per_period);
for (std::vector<AlsaPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it, ++i) {
for (std::vector<BackendPort*>::const_iterator it = _system_inputs.begin (); it != _system_inputs.end (); ++it, ++i) {
_pcmi->capt_chan (i, (float*)((*it)->get_buffer(_samples_per_period)), _samples_per_period);
}
_pcmi->capt_done (_samples_per_period);
@ -2265,7 +1820,7 @@ AlsaAudioBackend::main_process_thread ()
continue;
}
i = 0;
for (std::vector<AlsaPort*>::const_iterator it = (*s)->inputs.begin (); it != (*s)->inputs.end (); ++it, ++i) {
for (std::vector<BackendPort*>::const_iterator it = (*s)->inputs.begin (); it != (*s)->inputs.end (); ++it, ++i) {
(*s)->capt_chan (i, (float*)((*it)->get_buffer(_samples_per_period)), _samples_per_period);
}
}
@ -2274,7 +1829,7 @@ AlsaAudioBackend::main_process_thread ()
pthread_mutex_lock (&_device_port_mutex);
/* de-queue incoming midi*/
i = 0;
for (std::vector<AlsaPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it, ++i) {
for (std::vector<BackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it, ++i) {
assert (_rmidi_in.size() > i);
AlsaMidiIn *rm = _rmidi_in.at(i);
void *bptr = (*it)->get_buffer(0);
@ -2290,7 +1845,7 @@ AlsaAudioBackend::main_process_thread ()
}
pthread_mutex_unlock (&_device_port_mutex);
for (std::vector<AlsaPort*>::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) {
memset ((*it)->get_buffer (_samples_per_period), 0, _samples_per_period * sizeof (Sample));
}
@ -2304,13 +1859,13 @@ AlsaAudioBackend::main_process_thread ()
/* only used when adding/removing MIDI device/system ports */
pthread_mutex_lock (&_device_port_mutex);
for (std::vector<AlsaPort*>::iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it) {
for (std::vector<BackendPort*>::iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it) {
static_cast<AlsaMidiPort*>(*it)->next_period();
}
/* queue outgoing midi */
i = 0;
for (std::vector<AlsaPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it, ++i) {
for (std::vector<BackendPort*>::const_iterator it = _system_midi_out.begin (); it != _system_midi_out.end (); ++it, ++i) {
assert (_rmidi_out.size() > i);
const AlsaMidiBuffer * src = static_cast<const AlsaMidiPort*>(*it)->const_buffer();
AlsaMidiOut *rm = _rmidi_out.at(i);
@ -2324,7 +1879,7 @@ AlsaAudioBackend::main_process_thread ()
/* write back audio */
i = 0;
_pcmi->play_init (_samples_per_period);
for (std::vector<AlsaPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it, ++i) {
for (std::vector<BackendPort*>::const_iterator it = _system_outputs.begin (); it != _system_outputs.end (); ++it, ++i) {
_pcmi->play_chan (i, (const float*)(*it)->get_buffer (_samples_per_period), _samples_per_period);
}
for (; i < _pcmi->nplay (); ++i) {
@ -2337,7 +1892,7 @@ AlsaAudioBackend::main_process_thread ()
continue;
}
i = 0;
for (std::vector<AlsaPort*>::const_iterator it = (*s)->outputs.begin (); it != (*s)->outputs.end (); ++it, ++i) {
for (std::vector<BackendPort*>::const_iterator it = (*s)->outputs.begin (); it != (*s)->outputs.end (); ++it, ++i) {
(*s)->play_chan (i, (float*)((*it)->get_buffer(_samples_per_period)), _samples_per_period);
}
(*s)->cycle_end ();
@ -2365,14 +1920,14 @@ AlsaAudioBackend::main_process_thread ()
// Freewheelin'
// zero audio input buffers
for (std::vector<AlsaPort*>::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) {
memset ((*it)->get_buffer (_samples_per_period), 0, _samples_per_period * sizeof (Sample));
}
clock1 = g_get_monotonic_time();
uint32_t i = 0;
pthread_mutex_lock (&_device_port_mutex);
for (std::vector<AlsaPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it, ++i) {
for (std::vector<BackendPort*>::const_iterator it = _system_midi_in.begin (); it != _system_midi_in.end (); ++it, ++i) {
static_cast<AlsaMidiBuffer*>((*it)->get_buffer(0))->clear ();
AlsaMidiIn *rm = _rmidi_in.at(i);
void *bptr = (*it)->get_buffer(0);
@ -2398,7 +1953,7 @@ AlsaAudioBackend::main_process_thread ()
// drop all outgoing MIDI messages
pthread_mutex_lock (&_device_port_mutex);
for (std::vector<AlsaPort*>::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) {
void *bptr = (*it)->get_buffer(0);
midi_clear(bptr);
}
@ -2478,7 +2033,7 @@ AlsaAudioBackend::add_slave (const char* device,
} while (1);
PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsOutput | IsPhysical | IsTerminal));
if (!p) goto errout;
AlsaPort *ap = static_cast<AlsaPort*>(p);
BackendPort *ap = static_cast<BackendPort*>(p);
s->inputs.push_back (ap);
}
@ -2494,7 +2049,7 @@ AlsaAudioBackend::add_slave (const char* device,
} while (1);
PortHandle p = add_port(std::string(tmp), DataType::AUDIO, static_cast<PortFlags>(IsInput | IsPhysical | IsTerminal));
if (!p) goto errout;
AlsaPort *ap = static_cast<AlsaPort*>(p);
BackendPort *ap = static_cast<BackendPort*>(p);
s->outputs.push_back (ap);
}
@ -2550,12 +2105,12 @@ AlsaAudioBackend::AudioSlave::update_latencies (uint32_t play, uint32_t capt)
{
LatencyRange lr;
lr.min = lr.max = (capt);
for (std::vector<AlsaPort*>::const_iterator it = inputs.begin (); it != inputs.end (); ++it) {
for (std::vector<BackendPort*>::const_iterator it = inputs.begin (); it != inputs.end (); ++it) {
(*it)->set_latency_range (lr, false);
}
lr.min = lr.max = play;
for (std::vector<AlsaPort*>::const_iterator it = outputs.begin (); it != outputs.end (); ++it) {
for (std::vector<BackendPort*>::const_iterator it = outputs.begin (); it != outputs.end (); ++it) {
(*it)->set_latency_range (lr, true);
}
printf (" ----- SLAVE LATENCY play=%d capt=%d\n", play, capt); // XXX DEBUG
@ -2623,159 +2178,10 @@ extern "C" ARDOURBACKEND_API ARDOUR::AudioBackendInfo* descriptor ()
/******************************************************************************/
AlsaPort::AlsaPort (AlsaAudioBackend &b, const std::string& name, PortFlags flags)
: _alsa_backend (b)
, _name (name)
, _flags (flags)
{
_capture_latency_range.min = 0;
_capture_latency_range.max = 0;
_playback_latency_range.min = 0;
_playback_latency_range.max = 0;
}
AlsaPort::~AlsaPort () {
disconnect_all ();
}
int AlsaPort::connect (AlsaPort *port)
{
if (!port) {
PBD::error << _("AlsaPort::connect (): invalid (null) port") << endmsg;
return -1;
}
if (type () != port->type ()) {
PBD::error << _("AlsaPort::connect (): wrong port-type") << endmsg;
return -1;
}
if (is_output () && port->is_output ()) {
PBD::error << _("AlsaPort::connect (): cannot inter-connect output ports.") << endmsg;
return -1;
}
if (is_input () && port->is_input ()) {
PBD::error << _("AlsaPort::connect (): cannot inter-connect input ports.") << endmsg;
return -1;
}
if (this == port) {
PBD::error << _("AlsaPort::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 << _("AlsaPort::connect (): ports are already connected:")
<< " (" << name () << ") -> (" << port->name () << ")"
<< endmsg;
#endif
return -1;
}
_connect (port, true);
return 0;
}
void AlsaPort::_connect (AlsaPort *port, bool callback)
{
_connections.insert (port);
if (callback) {
port->_connect (this, false);
_alsa_backend.port_connect_callback (name(), port->name(), true);
}
}
int AlsaPort::disconnect (AlsaPort *port)
{
if (!port) {
PBD::error << _("AlsaPort::disconnect (): invalid (null) port") << endmsg;
return -1;
}
if (!is_connected (port)) {
PBD::error << _("AlsaPort::disconnect (): ports are not connected:")
<< " (" << name () << ") -> (" << port->name () << ")"
<< endmsg;
return -1;
}
_disconnect (port, true);
return 0;
}
void AlsaPort::_disconnect (AlsaPort *port, bool callback)
{
std::set<AlsaPort*>::iterator it = _connections.find (port);
assert (it != _connections.end ());
_connections.erase (it);
if (callback) {
port->_disconnect (this, false);
_alsa_backend.port_connect_callback (name(), port->name(), false);
}
}
void AlsaPort::disconnect_all ()
{
while (!_connections.empty ()) {
std::set<AlsaPort*>::iterator it = _connections.begin ();
(*it)->_disconnect (this, false);
_alsa_backend.port_connect_callback (name(), (*it)->name(), false);
_connections.erase (it);
}
}
bool
AlsaPort::is_connected (const AlsaPort *port) const
{
return _connections.find (const_cast<AlsaPort *>(port)) != _connections.end ();
}
bool AlsaPort::is_physically_connected () const
{
for (std::set<AlsaPort*>::const_iterator it = _connections.begin (); it != _connections.end (); ++it) {
if ((*it)->is_physical ()) {
return true;
}
}
return false;
}
void
AlsaPort::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<AlsaPort*>::const_iterator it = _connections.begin (); it != _connections.end (); ++it) {
if ((*it)->is_physical ()) {
(*it)->update_connected_latency (is_input ());
}
}
}
void
AlsaPort::update_connected_latency (bool for_playback)
{
LatencyRange lr;
lr.min = lr.max = 0;
for (std::set<AlsaPort*>::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);
}
/******************************************************************************/
AlsaAudioPort::AlsaAudioPort (AlsaAudioBackend &b, const std::string& name, PortFlags flags)
: AlsaPort (b, name, flags)
: BackendPort (b, name, flags)
{
memset (_buffer, 0, sizeof (_buffer));
mlock(_buffer, sizeof (_buffer));
@ -2786,8 +2192,8 @@ AlsaAudioPort::~AlsaAudioPort () { }
void* AlsaAudioPort::get_buffer (pframes_t n_samples)
{
if (is_input ()) {
const std::set<AlsaPort *>& connections = get_connections ();
std::set<AlsaPort*>::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 {
@ -2810,7 +2216,7 @@ void* AlsaAudioPort::get_buffer (pframes_t n_samples)
AlsaMidiPort::AlsaMidiPort (AlsaAudioBackend &b, const std::string& name, PortFlags flags)
: AlsaPort (b, name, flags)
: BackendPort (b, name, flags)
, _n_periods (1)
, _bufperiod (0)
{
@ -2835,8 +2241,8 @@ void* AlsaMidiPort::get_buffer (pframes_t /* nframes */)
{
if (is_input ()) {
(_buffer[_bufperiod]).clear ();
const std::set<AlsaPort*>& connections = get_connections ();
for (std::set<AlsaPort*>::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) {
const AlsaMidiBuffer * src = static_cast<const AlsaMidiPort*>(*i)->const_buffer ();
@ -2955,3 +2361,4 @@ AlsaDeviceReservation::reservation_stdout (std::string d, size_t /* s */)
_reservation_succeeded = true;
}
}

168
libs/backends/alsa/alsa_audiobackend.h
View File

@ -35,6 +35,7 @@
#include "ardour/audio_backend.h"
#include "ardour/dsp_load_calculator.h"
#include "ardour/port_engine_shared.h"
#include "ardour/system_exec.h"
#include "ardour/types.h"
@ -65,61 +66,7 @@ class AlsaMidiEvent {
typedef std::vector<AlsaMidiEvent> AlsaMidiBuffer;
class AlsaPort {
protected:
AlsaPort (AlsaAudioBackend &b, const std::string&, PortFlags);
public:
virtual ~AlsaPort ();
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 AlsaPort *port) const;
bool is_physically_connected () const;
const std::set<AlsaPort *>& get_connections () const { return _connections; }
int connect (AlsaPort *port);
int disconnect (AlsaPort *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);
void update_connected_latency (bool for_playback);
private:
AlsaAudioBackend &_alsa_backend;
std::string _name;
std::string _pretty_name;
const PortFlags _flags;
LatencyRange _capture_latency_range;
LatencyRange _playback_latency_range;
std::set<AlsaPort*> _connections;
void _connect (AlsaPort* , bool);
void _disconnect (AlsaPort* , bool);
}; // class AlsaPort
class AlsaAudioPort : public AlsaPort {
class AlsaAudioPort : public BackendPort {
public:
AlsaAudioPort (AlsaAudioBackend &b, const std::string&, PortFlags);
~AlsaAudioPort ();
@ -134,7 +81,7 @@ class AlsaAudioPort : public AlsaPort {
Sample _buffer[8192];
}; // class AlsaAudioPort
class AlsaMidiPort : public AlsaPort {
class AlsaMidiPort : public BackendPort {
public:
AlsaMidiPort (AlsaAudioBackend &b, const std::string&, PortFlags);
~AlsaMidiPort ();
@ -170,7 +117,8 @@ class AlsaDeviceReservation
bool _reservation_succeeded;
};
class AlsaAudioBackend : public AudioBackend {
class AlsaAudioBackend : public AudioBackend, public PortEngineSharedImpl
{
friend class AlsaPort;
public:
AlsaAudioBackend (AudioEngine& e, AudioBackendInfo& info);
@ -234,6 +182,34 @@ class AlsaAudioBackend : public AudioBackend {
bool can_set_systemic_midi_latencies () const { return true; }
/* PortEngine API - forwarded to PortEngineSharedImpl */
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 (!_run) 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); }
/* External control app */
std::string control_app_name () const { return std::string (); }
void launch_control_app () {}
@ -272,35 +248,8 @@ class AlsaAudioBackend : 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;
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);
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 */
/* MIDI */
int midi_event_get (pframes_t& timestamp, size_t& size, uint8_t const** buf, void* port_buffer, uint32_t event_index);
int midi_event_put (void* port_buffer, pframes_t timestamp, const uint8_t* buffer, size_t size);
uint32_t get_midi_event_count (void* port_buffer);
@ -318,14 +267,6 @@ class AlsaAudioBackend : 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);
@ -420,30 +361,13 @@ class AlsaAudioBackend : public AudioBackend {
};
/* port engine */
PortHandle add_port (const std::string& shortname, ARDOUR::DataType, ARDOUR::PortFlags);
BackendPort* port_factory (std::string const & name, ARDOUR::DataType dt, ARDOUR::PortFlags flags);
int register_system_audio_ports ();
int register_system_midi_ports (const std::string device = "");
void unregister_ports (bool system_only = false);
void update_system_port_latecies ();
std::vector<AlsaPort *> _system_inputs;
std::vector<AlsaPort *> _system_outputs;
std::vector<AlsaPort *> _system_midi_in;
std::vector<AlsaPort *> _system_midi_out;
struct SortByPortName
{
bool operator ()(const AlsaPort* lhs, const AlsaPort* rhs) const
{
return PBD::naturally_less (lhs->name ().c_str (), rhs->name ().c_str ());
}
};
typedef std::map<std::string, AlsaPort *> PortMap; // fast lookup in _ports
typedef std::set<AlsaPort *, SortByPortName> PortIndex; // fast lookup in _ports
SerializedRCUManager<PortMap> _portmap;
SerializedRCUManager<PortIndex> _ports;
std::vector<AlsaMidiOut *> _rmidi_out;
std::vector<AlsaMidiIn *> _rmidi_in;
@ -472,20 +396,6 @@ class AlsaAudioBackend : public AudioBackend {
pthread_mutex_unlock (&_port_callback_mutex);
}
bool valid_port (PortHandle port) const {
boost::shared_ptr<PortIndex> p = _ports.reader();
return std::find (p->begin(), p->end(), static_cast<AlsaPort*>(port)) != p->end ();
}
AlsaPort* find_port (const std::string& port_name) const {
boost::shared_ptr<PortMap> p = _portmap.reader();
PortMap::const_iterator it = p->find (port_name);
if (it == p->end()) {
return NULL;
}
return (*it).second;
}
void update_systemic_audio_latencies ();
void update_systemic_midi_latencies ();
@ -512,8 +422,8 @@ class AlsaAudioBackend : public AudioBackend {
bool halt;
bool dead;
std::vector<AlsaPort *> inputs;
std::vector<AlsaPort *> outputs;
std::vector<BackendPort *> inputs;
std::vector<BackendPort *> outputs;
PBD::Signal0<void> UpdateLatency;
PBD::ScopedConnection latency_connection;