Broke API to separate input/output from type (less code repetition and SLV2 is more useful with unknown extended port types this way).

Switched enum symbol naming scheme to be more typical and future proof.
Added LV2 OSC support.


git-svn-id: http://svn.drobilla.net/lad/slv2@600 a436a847-0d15-0410-975c-d299462d15a1

1 files changed, 75 insertions, 32 deletions

diff --git a/src/port.c b/src/port.c
index b229806..08f9046 100644
--- a/src/port.c
+++ b/src/port.c
@@ -63,56 +63,99 @@ slv2_port_duplicate(SLV2Port port)
 }
 
 
-SLV2PortClass
-slv2_port_get_class(SLV2Plugin p,
-                    SLV2Port   port)
+SLV2PortDirection
+slv2_port_get_direction(SLV2Plugin p,
+                        SLV2Port   port)
 {
-	SLV2Values class = slv2_port_get_value(p, port, "rdf:type");
-	assert(class);
+	SLV2Values direction = slv2_port_get_value(p, port, "rdf:type");
 
-	SLV2PortClass ret = SLV2_UNKNOWN_PORT_CLASS;
+	SLV2PortDirection ret = SLV2_PORT_DIRECTION_UNKNOWN;
 
-	int io = -1; // 0 = in, 1 = out
-	enum { UNKNOWN, AUDIO, CONTROL, MIDI } type = UNKNOWN;
+	if (!direction)
+		return ret;
 
-	for (unsigned i=0; i < slv2_values_size(class); ++i) {
-		SLV2Value val = slv2_values_get_at(class, i);
+	for (unsigned i=0; i < slv2_values_size(direction); ++i) {
+		SLV2Value val = slv2_values_get_at(direction, i);
 		if (slv2_value_is_uri(val)) {
 			const char* uri = slv2_value_as_uri(val);
 			if (!strcmp(uri, "http://lv2plug.in/ontology#InputPort"))
-				io = 0;
+				ret = SLV2_PORT_DIRECTION_INPUT;
 			else if (!strcmp(uri, "http://lv2plug.in/ontology#OutputPort"))
-				io = 1;
-			else if (!strcmp(uri, "http://lv2plug.in/ontology#ControlPort"))
-				type = CONTROL;
+				ret = SLV2_PORT_DIRECTION_OUTPUT;
+		}
+	}
+	
+	slv2_values_free(direction);
+
+	return ret;
+}
+
+
+SLV2PortType
+slv2_port_get_type(SLV2Plugin p,
+                   SLV2Port   port)
+{
+	SLV2Values type = slv2_port_get_value(p, port, "rdf:type");
+
+	SLV2PortType ret = SLV2_PORT_TYPE_UNKNOWN;
+
+	if (!type)
+		return ret;
+	
+	for (unsigned i=0; i < slv2_values_size(type); ++i) {
+		SLV2Value val = slv2_values_get_at(type, i);
+		if (slv2_value_is_uri(val)) {
+			const char* uri = slv2_value_as_uri(val);
+			if (!strcmp(uri, "http://lv2plug.in/ontology#ControlPort"))
+				ret = SLV2_PORT_TYPE_CONTROL;
 			else if (!strcmp(uri, "http://lv2plug.in/ontology#AudioPort"))
-				type = AUDIO;
+				ret = SLV2_PORT_TYPE_AUDIO;
 			else if (!strcmp(uri, "http://ll-plugins.nongnu.org/lv2/ext/MidiPort"))
-				type = MIDI;
+				ret = SLV2_PORT_TYPE_MIDI;
+			else if (!strcmp(uri, "http://drobilla.net/ns/lv2ext/osc/0#OSCPort"))
+				ret = SLV2_PORT_TYPE_OSC;
 		}
 	}
 
-	if (io == 0) {
-		if (type == AUDIO)
-			ret = SLV2_AUDIO_INPUT;
-		else if (type == CONTROL)
-			ret = SLV2_CONTROL_INPUT;
-		else if (type == MIDI)
-			ret = SLV2_MIDI_INPUT;
-	} else if (io == 1) {
-		if (type == AUDIO)
-			ret = SLV2_AUDIO_OUTPUT;
-		else if (type == CONTROL)
-			ret = SLV2_CONTROL_OUTPUT;
-		else if (type == MIDI)
-			ret = SLV2_MIDI_OUTPUT;
+	slv2_values_free(type);
+
+	return ret;
+}
+
+#if 0
+bool
+slv2_port_has_hint(SLV2Plugin p,
+                   SLV2Port   port,
+                   SLV2Value  hint)
+{
+	/* FIXME: Add SLV2Value QName stuff to make this not suck to use */
+
+	SLV2Values hints = slv2_port_get_value(p, port, "lv2:portHint");
+
+	if (!hints)
+		return false;
+	
+	for (unsigned i=0; i < slv2_values_size(type); ++i) {
+		const SLV2Value val = slv2_values_get_at(type, i);
+		if (slv2_value_is_uri(val)) {
+			const char* uri = slv2_value_as_uri(val);
+			if (!strcmp(uri, "http://lv2plug.in/ontology#connectionOptional"))
+				return true;
+				ret = SLV2_PORT_TYPE_CONTROL;
+			else if (!strcmp(uri, "http://lv2plug.in/ontology#AudioPort"))
+				ret = SLV2_PORT_TYPE_AUDIO;
+			else if (!strcmp(uri, "http://ll-plugins.nongnu.org/lv2/ext/MidiPort"))
+				ret = SLV2_PORT_TYPE_MIDI;
+			else if (!strcmp(uri, "http://drobilla.net/ns/lv2ext/osc/0#OSCPort"))
+				ret = SLV2_PORT_TYPE_OSC;
+		}
 	}
 
-	slv2_values_free(class);
+	slv2_values_free(type);
 
 	return ret;
 }
-
+#endif
 
 SLV2Values
 slv2_port_get_value(SLV2Plugin  p,