add new API for retrieving port flags from backend

11 files changed, 57 insertions, 1 deletions

diff --git a/libs/ardour/ardour/port_engine.h b/libs/ardour/ardour/port_engine.h
index 9c72b77550..e93e78db4a 100644
--- a/libs/ardour/ardour/port_engine.h
+++ b/libs/ardour/ardour/port_engine.h
@@ -120,6 +120,11 @@ public:
 	 */
 	virtual std::string get_port_name (PortHandle) const = 0;
 
+	/** Return the flags of the port referred to by @param port. If the port
+	 * does not exist, return an empty string.
+	 */
+	virtual PortFlags get_port_flags (PortHandle) const = 0;
+
 	/** Return the port-property value and type for a given key.
 	 * (eg query a human readable port name)
 	 *
diff --git a/libs/backends/alsa/alsa_audiobackend.cc b/libs/backends/alsa/alsa_audiobackend.cc
index 42af5a4b92..9594f31d98 100644
--- a/libs/backends/alsa/alsa_audiobackend.cc
+++ b/libs/backends/alsa/alsa_audiobackend.cc
@@ -1212,6 +1212,16 @@ AlsaAudioBackend::get_port_name (PortEngine::PortHandle port) const
 	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
 {
diff --git a/libs/backends/alsa/alsa_audiobackend.h b/libs/backends/alsa/alsa_audiobackend.h
index f6887fe346..11623cfcf4 100644
--- a/libs/backends/alsa/alsa_audiobackend.h
+++ b/libs/backends/alsa/alsa_audiobackend.h
@@ -275,6 +275,7 @@ class AlsaAudioBackend : public AudioBackend {
 
 		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;
diff --git a/libs/backends/coreaudio/coreaudio_backend.cc b/libs/backends/coreaudio/coreaudio_backend.cc
index 8480686416..4c02c32ec8 100644
--- a/libs/backends/coreaudio/coreaudio_backend.cc
+++ b/libs/backends/coreaudio/coreaudio_backend.cc
@@ -957,6 +957,16 @@ CoreAudioBackend::get_port_name (PortEngine::PortHandle port) const
 	return static_cast<CoreBackendPort*>(port)->name ();
 }
 
+PortFlags
+CoreAudioBackend::get_port_flags (PortEngine::PortHandle port) const
+{
+	if (!valid_port (port)) {
+		PBD::warning << _("CoreAudioBackend::get_port_flags: Invalid Port(s)") << endmsg;
+		return PortFlags (0);
+	}
+	return static_cast<CoreBackendPort*>(port)->flags ();
+}
+
 int
 CoreAudioBackend::get_port_property (PortHandle port, const std::string& key, std::string& value, std::string& type) const
 {
diff --git a/libs/backends/coreaudio/coreaudio_backend.h b/libs/backends/coreaudio/coreaudio_backend.h
index b0a9727ae3..712deca97b 100644
--- a/libs/backends/coreaudio/coreaudio_backend.h
+++ b/libs/backends/coreaudio/coreaudio_backend.h
@@ -321,6 +321,7 @@ class CoreAudioBackend : public AudioBackend {
 
 	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);
diff --git a/libs/backends/dummy/dummy_audiobackend.cc b/libs/backends/dummy/dummy_audiobackend.cc
index a8dcb8509e..8f0daf6aec 100644
--- a/libs/backends/dummy/dummy_audiobackend.cc
+++ b/libs/backends/dummy/dummy_audiobackend.cc
@@ -678,6 +678,16 @@ DummyAudioBackend::get_port_name (PortEngine::PortHandle port) const
 	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
 {
diff --git a/libs/backends/dummy/dummy_audiobackend.h b/libs/backends/dummy/dummy_audiobackend.h
index 48e588d364..e687321abf 100644
--- a/libs/backends/dummy/dummy_audiobackend.h
+++ b/libs/backends/dummy/dummy_audiobackend.h
@@ -328,6 +328,7 @@ class DummyAudioBackend : public AudioBackend {
 
 		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;
diff --git a/libs/backends/jack/jack_audiobackend.h b/libs/backends/jack/jack_audiobackend.h
index e14396ea24..bd4886651f 100644
--- a/libs/backends/jack/jack_audiobackend.h
+++ b/libs/backends/jack/jack_audiobackend.h
@@ -132,6 +132,7 @@ class JACKAudioBackend : public AudioBackend {
 
     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);
diff --git a/libs/backends/jack/jack_portengine.cc b/libs/backends/jack/jack_portengine.cc
index 70dded77c4..a9cca6fc30 100644
--- a/libs/backends/jack/jack_portengine.cc
+++ b/libs/backends/jack/jack_portengine.cc
@@ -124,6 +124,12 @@ JACKAudioBackend::get_port_name (PortHandle port) const
 	return jack_port_name ((jack_port_t*) port);
 }
 
+PortFlags
+JACKAudioBackend::get_port_flags (PortHandle port) const
+{
+	return PortFlags (jack_port_flags ((jack_port_t*) port));
+}
+
 int
 JACKAudioBackend::get_port_property (PortHandle port, const std::string& key, std::string& value, std::string& type) const
 {
diff --git a/libs/backends/portaudio/portaudio_backend.cc b/libs/backends/portaudio/portaudio_backend.cc
index 01753803c9..398347b8db 100644
--- a/libs/backends/portaudio/portaudio_backend.cc
+++ b/libs/backends/portaudio/portaudio_backend.cc
@@ -1223,11 +1223,21 @@ 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 PortFlags (0);
 	}
 	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 std::string ();
+	}
+	return static_cast<PamPort*>(port)->flags ();
+}
+
 int
 PortAudioBackend::get_port_property (PortHandle port,
                                      const std::string& key,
diff --git a/libs/backends/portaudio/portaudio_backend.h b/libs/backends/portaudio/portaudio_backend.h
index bc493101fc..da16d826c4 100644
--- a/libs/backends/portaudio/portaudio_backend.h
+++ b/libs/backends/portaudio/portaudio_backend.h
@@ -255,6 +255,7 @@ class PortAudioBackend : public AudioBackend {
 
 		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);