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initial try (not compiled) of PortAudio backend using PortEngineSharedImpl

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This commit is contained in:
Paul Davis
2020-04-02 18:35:11 -06:00
parent 72925e4453
commit 7fc5a6c971
2 changed files with 68 additions and 686 deletions
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604
libs/backends/portaudio/portaudio_backend.cc
View File

@@ -64,6 +64,7 @@ std::vector<AudioBackend::DeviceStatus> PortAudioBackend::_output_audio_device_s
PortAudioBackend::PortAudioBackend (AudioEngine& e, AudioBackendInfo& info)
: AudioBackend (e, info)
, PortEngineSharedImpl (e, s_instance_name)
, _pcmio (0)
, _run (false)
, _active (false)
@@ -1200,184 +1201,6 @@ PortAudioBackend::my_name () const
return _instance_name;
}
uint32_t
PortAudioBackend::port_name_size () const
{
return 256;
}
int
PortAudioBackend::set_port_name (PortEngine::PortHandle port, const std::string& name)
{
if (!valid_port (port)) {
DEBUG_PORTS("set_port_name: Invalid Port(s)\n");
return -1;
}
return static_cast<PamPort*>(port)->set_name (_instance_name + ":" + name);
}
std::string
PortAudioBackend::get_port_name (PortEngine::PortHandle port) const
{
if (!valid_port (port)) {
DEBUG_PORTS("get_port_name: Invalid Port(s)\n");
return std::string ();
}
return static_cast<PamPort*>(port)->name ();
}
PortFlags
PortAudioBackend::get_port_flags (PortEngine::PortHandle port) const
{
if (!valid_port (port)) {
DEBUG_PORTS("get_port_flags: Invalid Port(s)\n");
return PortFlags (0);
}
return static_cast<PamPort*>(port)->flags ();
}
int
PortAudioBackend::get_port_property (PortHandle port,
const std::string& key,
std::string& value,
std::string& type) const
{
if (!valid_port (port)) {
DEBUG_PORTS("get_port_name: Invalid Port(s)\n");
return -1;
}
if (key == "http://jackaudio.org/metadata/pretty-name") {
type = "";
value = static_cast<PamPort*>(port)->pretty_name ();
if (!value.empty()) {
return 0;
}
}
return -1;
}
int
PortAudioBackend::set_port_property (PortHandle port,
const std::string& key,
const std::string& value,
const std::string& type)
{
if (!valid_port (port)) {
DEBUG_PORTS("get_port_name: Invalid Port(s)\n");
return -1;
}
if (key == "http://jackaudio.org/metadata/pretty-name" && type.empty ()) {
static_cast<PamPort*>(port)->set_pretty_name (value);
return 0;
}
return -1;
}
PortEngine::PortHandle
PortAudioBackend::get_port_by_name (const std::string& name) const
{
PortHandle port = (PortHandle) find_port (name);
return port;
}
int
PortAudioBackend::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 (size_t i = 0; i < _ports.size (); ++i) {
PamPort* port = _ports[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
PortAudioBackend::port_data_type (PortEngine::PortHandle port) const
{
if (!valid_port (port)) {
return DataType::NIL;
}
return static_cast<PamPort*>(port)->type ();
}
PortEngine::PortHandle
PortAudioBackend::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
PortAudioBackend::add_port (
const std::string& name,
ARDOUR::DataType type,
ARDOUR::PortFlags flags)
{
assert(name.size ());
if (find_port (name)) {
DEBUG_PORTS(
string_compose("register_port: Port already exists: (%1)\n", name));
return 0;
}
PamPort* port = NULL;
switch (type) {
case DataType::AUDIO:
port = new PortAudioPort(*this, name, flags);
break;
case DataType::MIDI:
port = new PortMidiPort(*this, name, flags);
break;
default:
DEBUG_PORTS("register_port: Invalid Data Type.\n");
return 0;
}
_ports.push_back (port);
return port;
}
void
PortAudioBackend::unregister_port (PortEngine::PortHandle port_handle)
{
if (!_run) {
return;
}
PamPort* port = static_cast<PamPort*>(port_handle);
std::vector<PamPort*>::iterator i = std::find (_ports.begin (), _ports.end (), static_cast<PamPort*>(port_handle));
if (i == _ports.end ()) {
DEBUG_PORTS("unregister_port: Failed to find port\n");
return;
}
disconnect_all(port_handle);
_ports.erase (i);
delete port;
}
int
PortAudioBackend::register_system_audio_ports()
{
@@ -1488,159 +1311,42 @@ PortAudioBackend::register_system_midi_ports()
return 0;
}
void
PortAudioBackend::unregister_ports (bool system_only)
{
size_t i = 0;
_system_inputs.clear();
_system_outputs.clear();
_system_midi_in.clear();
_system_midi_out.clear();
while (i < _ports.size ()) {
PamPort* port = _ports[i];
if (! system_only || (port->is_physical () && port->is_terminal ())) {
port->disconnect_all ();
delete port;
_ports.erase (_ports.begin() + i);
} else {
++i;
}
}
}
void
PortAudioBackend::update_system_port_latecies ()
{
for (std::vector<PamPort*>::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<PamPort*>::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<PamPort*>::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<PamPort*>::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
PortAudioBackend::connect (const std::string& src, const std::string& dst)
BackendPort*
PortAudioBackend::port_factory (std::string const & name, ARDOUR::DataType type, ARDOUR::PortFlags flags)
{
PamPort* src_port = find_port (src);
PamPort* dst_port = find_port (dst);
BackendPort* port = 0;
if (!src_port) {
DEBUG_PORTS(string_compose("connect: Invalid Source port: (%1)\n", src));
return -1;
}
if (!dst_port) {
DEBUG_PORTS(string_compose("connect: Invalid Destination port: (%1)\n", dst));
return -1;
}
return src_port->connect (dst_port);
}
int
PortAudioBackend::disconnect (const std::string& src, const std::string& dst)
{
PamPort* src_port = find_port (src);
PamPort* dst_port = find_port (dst);
if (!src_port || !dst_port) {
DEBUG_PORTS("disconnect: Invalid Port(s)\n");
return -1;
}
return src_port->disconnect (dst_port);
}
int
PortAudioBackend::connect (PortEngine::PortHandle src, const std::string& dst)
{
PamPort* dst_port = find_port (dst);
if (!valid_port (src)) {
DEBUG_PORTS("connect: Invalid Source Port Handle\n");
return -1;
}
if (!dst_port) {
DEBUG_PORTS(string_compose("connect: Invalid Destination Port (%1)\n", dst));
return -1;
}
return static_cast<PamPort*>(src)->connect (dst_port);
}
int
PortAudioBackend::disconnect (PortEngine::PortHandle src, const std::string& dst)
{
PamPort* dst_port = find_port (dst);
if (!valid_port (src) || !dst_port) {
DEBUG_PORTS("disconnect: Invalid Port(s)\n");
return -1;
}
return static_cast<PamPort*>(src)->disconnect (dst_port);
}
int
PortAudioBackend::disconnect_all (PortEngine::PortHandle port)
{
if (!valid_port (port)) {
DEBUG_PORTS("disconnect_all: Invalid Port\n");
return -1;
}
static_cast<PamPort*>(port)->disconnect_all ();
return 0;
}
bool
PortAudioBackend::connected (PortEngine::PortHandle port, bool /* process_callback_safe*/)
{
if (!valid_port (port)) {
DEBUG_PORTS("disconnect_all: Invalid Port\n");
return false;
}
return static_cast<PamPort*>(port)->is_connected ();
}
bool
PortAudioBackend::connected_to (PortEngine::PortHandle src, const std::string& dst, bool /*process_callback_safe*/)
{
PamPort* dst_port = find_port (dst);
if (!valid_port (src) || !dst_port) {
DEBUG_PORTS("connected_to: Invalid Port\n");
return false;
}
return static_cast<PamPort*>(src)->is_connected (dst_port);
}
bool
PortAudioBackend::physically_connected (PortEngine::PortHandle port, bool /*process_callback_safe*/)
{
if (!valid_port (port)) {
DEBUG_PORTS("physically_connected: Invalid Port\n");
return false;
}
return static_cast<PamPort*>(port)->is_physically_connected ();
}
int
PortAudioBackend::get_connections (PortEngine::PortHandle port, std::vector<std::string>& names, bool /*process_callback_safe*/)
{
if (!valid_port (port)) {
DEBUG_PORTS("get_connections: Invalid Port\n");
return -1;
switch (type) {
case DataType::AUDIO:
port = new PortAudioPort (*this, name, flags);
break;
case DataType::MIDI:
port = new PortMidiPort (*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::vector<PamPort*>& connected_ports = static_cast<PamPort*>(port)->get_connections ();
for (std::vector<PamPort*>::const_iterator i = connected_ports.begin (); i != connected_ports.end (); ++i) {
names.push_back ((*i)->name ());
}
return (int)names.size ();
return port;
}
/* MIDI */
@@ -1731,9 +1437,9 @@ void
PortAudioBackend::set_latency_range (PortEngine::PortHandle port, bool for_playback, LatencyRange latency_range)
{
if (!valid_port (port)) {
DEBUG_PORTS("PamPort::set_latency_range (): invalid port.\n");
DEBUG_PORTS("BackendPort::set_latency_range (): invalid port.\n");
}
static_cast<PamPort*>(port)->set_latency_range (latency_range, for_playback);
static_cast<BackendPort*>(port)->set_latency_range (latency_range, for_playback);
}
LatencyRange
@@ -1741,12 +1447,12 @@ PortAudioBackend::get_latency_range (PortEngine::PortHandle port, bool for_playb
{
LatencyRange r;
if (!valid_port (port)) {
DEBUG_PORTS("PamPort::get_latency_range (): invalid port.\n");
DEBUG_PORTS("BackendPort::get_latency_range (): invalid port.\n");
r.min = 0;
r.max = 0;
return r;
}
PamPort* p = static_cast<PamPort*>(port);
BackendPort* p = static_cast<BackendPort*>(port);
assert(p);
r = p->latency_range (for_playback);
@@ -1764,91 +1470,6 @@ PortAudioBackend::get_latency_range (PortEngine::PortHandle port, bool for_playb
return r;
}
/* Discovering physical ports */
bool
PortAudioBackend::port_is_physical (PortEngine::PortHandle port) const
{
if (!valid_port (port)) {
DEBUG_PORTS("PamPort::port_is_physical (): invalid port.\n");
return false;
}
return static_cast<PamPort*>(port)->is_physical ();
}
void
PortAudioBackend::get_physical_outputs (DataType type, std::vector<std::string>& port_names)
{
for (size_t i = 0; i < _ports.size (); ++i) {
PamPort* port = _ports[i];
if ((port->type () == type) && port->is_input () && port->is_physical ()) {
port_names.push_back (port->name ());
}
}
}
void
PortAudioBackend::get_physical_inputs (DataType type, std::vector<std::string>& port_names)
{
for (size_t i = 0; i < _ports.size (); ++i) {
PamPort* port = _ports[i];
if ((port->type () == type) && port->is_output () && port->is_physical ()) {
port_names.push_back (port->name ());
}
}
}
ChanCount
PortAudioBackend::n_physical_outputs () const
{
int n_midi = 0;
int n_audio = 0;
for (size_t i = 0; i < _ports.size (); ++i) {
PamPort* 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, n_audio);
cc.set (DataType::MIDI, n_midi);
return cc;
}
ChanCount
PortAudioBackend::n_physical_inputs () const
{
int n_midi = 0;
int n_audio = 0;
for (size_t i = 0; i < _ports.size (); ++i) {
PamPort* 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, n_audio);
cc.set (DataType::MIDI, n_midi);
return cc;
}
/* Getting access to the data buffer for a port */
@@ -1858,7 +1479,7 @@ PortAudioBackend::get_buffer (PortEngine::PortHandle port, pframes_t nframes)
assert (port);
assert (valid_port (port));
if (!port || !valid_port (port)) return NULL; // XXX remove me
return static_cast<PamPort*>(port)->get_buffer (nframes);
return static_cast<BackendPort*>(port)->get_buffer (nframes);
}
@@ -1951,7 +1572,7 @@ PortAudioBackend::blocking_process_main(const float* interleaved_input_data,
i = 0;
/* Copy input audio data into input port buffers */
for (std::vector<PamPort*>::const_iterator it = _system_inputs.begin();
for (std::vector<BackendPort*>::const_iterator it = _system_inputs.begin();
it != _system_inputs.end();
++it, ++i) {
assert(_system_inputs.size() == _pcmio->n_capture_channels());
@@ -1964,7 +1585,7 @@ PortAudioBackend::blocking_process_main(const float* interleaved_input_data,
process_incoming_midi ();
/* clear output buffers */
for (std::vector<PamPort*>::const_iterator it = _system_outputs.begin();
for (std::vector<BackendPort*>::const_iterator it = _system_outputs.begin();
it != _system_outputs.end();
++it) {
memset((*it)->get_buffer(_samples_per_period),
@@ -2008,7 +1629,7 @@ PortAudioBackend::blocking_process_main(const float* interleaved_input_data,
/* write back audio */
i = 0;
for (std::vector<PamPort*>::const_iterator it = _system_outputs.begin();
for (std::vector<BackendPort*>::const_iterator it = _system_outputs.begin();
it != _system_outputs.end();
++it, ++i) {
assert(_system_outputs.size() == _pcmio->n_playback_channels());
@@ -2041,7 +1662,7 @@ bool
PortAudioBackend::blocking_process_freewheel()
{
// zero audio input buffers
for (std::vector<PamPort*>::const_iterator it = _system_inputs.begin();
for (std::vector<BackendPort*>::const_iterator it = _system_inputs.begin();
it != _system_inputs.end();
++it) {
memset((*it)->get_buffer(_samples_per_period),
@@ -2058,7 +1679,7 @@ PortAudioBackend::blocking_process_freewheel()
}
// drop all outgoing MIDI messages
for (std::vector<PamPort*>::const_iterator it = _system_midi_out.begin();
for (std::vector<BackendPort*>::const_iterator it = _system_midi_out.begin();
it != _system_midi_out.end();
++it) {
void* bptr = (*it)->get_buffer(0);
@@ -2074,7 +1695,7 @@ void
PortAudioBackend::process_incoming_midi ()
{
uint32_t i = 0;
for (std::vector<PamPort*>::const_iterator it = _system_midi_in.begin();
for (std::vector<BackendPort*>::const_iterator it = _system_midi_in.begin();
it != _system_midi_in.end();
++it, ++i) {
PortMidiBuffer* mbuf = static_cast<PortMidiBuffer*>((*it)->get_buffer(0));
@@ -2106,14 +1727,14 @@ void
PortAudioBackend::process_outgoing_midi ()
{
/* mixdown midi */
for (std::vector<PamPort*>::iterator it = _system_midi_out.begin();
for (std::vector<BackendPort*>::iterator it = _system_midi_out.begin();
it != _system_midi_out.end();
++it) {
static_cast<PortMidiPort*>(*it)->next_period();
}
/* queue outgoing midi */
uint32_t i = 0;
for (std::vector<PamPort*>::const_iterator it = _system_midi_out.begin();
for (std::vector<BackendPort*>::const_iterator it = _system_midi_out.begin();
it != _system_midi_out.end();
++it, ++i) {
const PortMidiBuffer* src =
@@ -2229,164 +1850,11 @@ extern "C" ARDOURBACKEND_API ARDOUR::AudioBackendInfo* descriptor ()
/******************************************************************************/
PamPort::PamPort (PortAudioBackend &b, const std::string& name, PortFlags flags)
: _osx_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;
}
PamPort::~PamPort () {
disconnect_all ();
}
int PamPort::connect (PamPort *port)
{
if (!port) {
DEBUG_PORTS("PamPort::connect (): invalid (null) port\n");
return -1;
}
if (type () != port->type ()) {
DEBUG_PORTS("PamPort::connect (): wrong port-type\n");
return -1;
}
if (is_output () && port->is_output ()) {
DEBUG_PORTS("PamPort::connect (): cannot inter-connect output ports.\n");
return -1;
}
if (is_input () && port->is_input ()) {
DEBUG_PORTS("PamPort::connect (): cannot inter-connect input ports.\n");
return -1;
}
if (this == port) {
DEBUG_PORTS("PamPort::connect (): cannot self-connect ports.\n");
return -1;
}
if (is_connected (port)) {
#if 0 // don't bother to warn about this for now. just ignore it
PBD::error << _("PamPort::connect (): ports are already connected:")
<< " (" << name () << ") -> (" << port->name () << ")"
<< endmsg;
#endif
return -1;
}
_connect (port, true);
return 0;
}
void PamPort::_connect (PamPort *port, bool callback)
{
_connections.push_back (port);
if (callback) {
port->_connect (this, false);
_osx_backend.port_connect_callback (name(), port->name(), true);
}
}
int PamPort::disconnect (PamPort *port)
{
if (!port) {
DEBUG_PORTS("PamPort::disconnect (): invalid (null) port\n");
return -1;
}
if (!is_connected (port)) {
DEBUG_PORTS(string_compose(
"PamPort::disconnect (): ports are not connected: (%1) -> (%2)\n",
name(),
port->name()));
return -1;
}
_disconnect (port, true);
return 0;
}
void PamPort::_disconnect (PamPort *port, bool callback)
{
std::vector<PamPort*>::iterator it = std::find (_connections.begin (), _connections.end (), port);
assert (it != _connections.end ());
_connections.erase (it);
if (callback) {
port->_disconnect (this, false);
_osx_backend.port_connect_callback (name(), port->name(), false);
}
}
void PamPort::disconnect_all ()
{
while (!_connections.empty ()) {
_connections.back ()->_disconnect (this, false);
_osx_backend.port_connect_callback (name(), _connections.back ()->name(), false);
_connections.pop_back ();
}
}
bool
PamPort::is_connected (const PamPort *port) const
{
return std::find (_connections.begin (), _connections.end (), port) != _connections.end ();
}
bool PamPort::is_physically_connected () const
{
for (std::vector<PamPort*>::const_iterator it = _connections.begin (); it != _connections.end (); ++it) {
if ((*it)->is_physical ()) {
return true;
}
}
return false;
}
void
PamPort::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::vector<PamPort*>::const_iterator it = _connections.begin (); it != _connections.end (); ++it) {
if ((*it)->is_physical ()) {
(*it)->update_connected_latency (is_input ());
}
}
}
void
PamPort::update_connected_latency (bool for_playback)
{
LatencyRange lr;
lr.min = lr.max = 0;
for (std::vector<PamPort*>::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);
}
/******************************************************************************/
PortAudioPort::PortAudioPort (PortAudioBackend &b, const std::string& name, PortFlags flags)
: PamPort (b, name, flags)
: BackendPort (b, name, flags)
{
memset (_buffer, 0, sizeof (_buffer));
#ifndef PLATFORM_WINDOWS
@@ -2399,7 +1867,7 @@ PortAudioPort::~PortAudioPort () { }
void* PortAudioPort::get_buffer (pframes_t n_samples)
{
if (is_input ()) {
std::vector<PamPort*>::const_iterator it = get_connections ().begin ();
std::vector<BackendPort*>::const_iterator it = get_connections ().begin ();
if (it == get_connections ().end ()) {
memset (_buffer, 0, n_samples * sizeof (Sample));
} else {
@@ -2422,7 +1890,7 @@ void* PortAudioPort::get_buffer (pframes_t n_samples)
PortMidiPort::PortMidiPort (PortAudioBackend &b, const std::string& name, PortFlags flags)
: PamPort (b, name, flags)
: BackendPort (b, name, flags)
, _n_periods (1)
, _bufperiod (0)
{
@@ -2445,7 +1913,7 @@ void* PortMidiPort::get_buffer (pframes_t /* nframes */)
{
if (is_input ()) {
(_buffer[_bufperiod]).clear ();
for (std::vector<PamPort*>::const_iterator i = get_connections ().begin ();
for (std::vector<BackendPort*>::const_iterator i = get_connections ().begin ();
i != get_connections ().end ();
++i) {
const PortMidiBuffer * src = static_cast<const PortMidiPort*>(*i)->const_buffer ();

150
libs/backends/portaudio/portaudio_backend.h
View File

@@ -32,6 +32,7 @@
#include "ardour/audio_backend.h"
#include "ardour/dsp_load_calculator.h"
#include "ardour/port_ending_shared.h"
#include "ardour/types.h"
#include "portaudio_io.h"
@@ -58,61 +59,7 @@ class PortMidiEvent {
typedef std::vector<PortMidiEvent> PortMidiBuffer;
class PamPort { // PortAudio / PortMidi Backend Port
protected:
PamPort (PortAudioBackend &b, const std::string&, PortFlags);
public:
virtual ~PamPort ();
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 PamPort *port) const;
bool is_physically_connected () const;
const std::vector<PamPort *>& get_connections () const { return _connections; }
int connect (PamPort *port);
int disconnect (PamPort *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:
PortAudioBackend &_osx_backend;
std::string _name;
std::string _pretty_name;
const PortFlags _flags;
LatencyRange _capture_latency_range;
LatencyRange _playback_latency_range;
std::vector<PamPort*> _connections;
void _connect (PamPort* , bool);
void _disconnect (PamPort* , bool);
}; // class PamPort
class PortAudioPort : public PamPort {
class PortAudioPort : public BackendPort {
public:
PortAudioPort (PortAudioBackend &b, const std::string&, PortFlags);
~PortAudioPort ();
@@ -127,7 +74,7 @@ class PortAudioPort : public PamPort {
Sample _buffer[8192];
}; // class PortAudioPort
class PortMidiPort : public PamPort {
class PortMidiPort : public BackendPort {
public:
PortMidiPort (PortAudioBackend &b, const std::string&, PortFlags);
~PortMidiPort ();
@@ -146,7 +93,7 @@ class PortMidiPort : public PamPort {
int _bufperiod;
}; // class PortMidiPort
class PortAudioBackend : public AudioBackend {
class PortAudioBackend : public AudioBackend, public PortEngineSharedImpl {
friend class PamPort;
public:
PortAudioBackend (AudioEngine& e, AudioBackendInfo& info);
@@ -251,32 +198,35 @@ class PortAudioBackend : 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;
/* PortEngine API - forwarded to PortEngineSharedImpl */
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);
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); }
/* MIDI */
int midi_event_get (pframes_t& timestamp, size_t& size, uint8_t const** buf, void* port_buffer, uint32_t event_index);
@@ -296,14 +246,6 @@ class PortAudioBackend : 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);
@@ -425,18 +367,12 @@ class PortAudioBackend : 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 ();
void unregister_ports (bool system_only = false);
void update_system_port_latecies ();
std::vector<PamPort *> _ports;
std::vector<PamPort *> _system_inputs;
std::vector<PamPort *> _system_outputs;
std::vector<PamPort *> _system_midi_in;
std::vector<PamPort *> _system_midi_out;
struct PortConnectData {
std::string a;
std::string b;
@@ -462,28 +398,6 @@ class PortAudioBackend : public AudioBackend {
pthread_mutex_unlock (&_port_callback_mutex);
}
bool valid_port (PortHandle port) const {
return std::find (_ports.begin (), _ports.end (), (PamPort*)port) != _ports.end ();
}
PamPort * find_port (const std::string& port_name) const {
for (std::vector<PamPort*>::const_iterator it = _ports.begin (); it != _ports.end (); ++it) {
if ((*it)->name () == port_name) {
return *it;
}
}
return NULL;
}
PamPort * find_port_in (std::vector<PamPort *> plist, const std::string& port_name) const {
for (std::vector<PamPort*>::const_iterator it = plist.begin (); it != plist.end (); ++it) {
if ((*it)->name () == port_name) {
return *it;
}
}
return NULL;
}
}; // class PortAudioBackend
} // namespace