Add slv2_plugin_get_num_ports_of_class.

git-svn-id: http://svn.drobilla.net/lad/slv2@1116 a436a847-0d15-0410-975c-d299462d15a1

3 files changed, 48 insertions, 1 deletions

diff --git a/slv2/plugin.h b/slv2/plugin.h
index a3ae1f0..0592bfd 100644
--- a/slv2/plugin.h
+++ b/slv2/plugin.h
@@ -270,6 +270,18 @@ uint32_t
 slv2_plugin_get_num_ports(SLV2Plugin p);
 
 
+/** Get the number of ports on this plugin that are members of some class(es).
+ *
+ * Note that this is a varargs function so ports fitting any type 'profile'
+ * desired can be found quickly.  REMEMBER TO TERMINATE THE PARAMETER LIST
+ * OF THIS FUNCTION WITH NULL OR VERY NASTY THINGS WILL HAPPEN.
+ *
+ * Time = O(1)
+ */
+uint32_t
+slv2_plugin_get_num_ports_of_class(SLV2Plugin p,
+                                   SLV2Value  class_1, ...);
+
 /** Return whether or not the plugin introduces (and reports) latency.
  *
  * The index of the latency port can be found with slv2_plugin_get_latency_port
diff --git a/src/plugin.c b/src/plugin.c
index 437bcb6..4745135 100644
--- a/src/plugin.c
+++ b/src/plugin.c
@@ -473,6 +473,41 @@ slv2_plugin_get_num_ports(SLV2Plugin p)
 }
 
 
+uint32_t
+slv2_plugin_get_num_ports_of_class(SLV2Plugin p,
+                                   SLV2Value  class_1, ...)
+{
+	uint32_t ret = 0;
+	va_list  args;
+
+	for (unsigned i=0; i < slv2_plugin_get_num_ports(p); ++i) {
+		SLV2Port port = raptor_sequence_get_at(p->ports, i);
+		if (!slv2_port_is_a(p, port, class_1))
+			continue;
+
+		va_start(args, class_1);
+		
+		bool matches = true;
+		for (SLV2Value class_i = NULL; (class_i = va_arg(args, SLV2Value)) != NULL ; ) {
+			if (!slv2_port_is_a(p, port, class_i)) {
+				va_end(args);
+				matches = false;
+				break;
+			}
+		}
+
+		if (matches) {
+			printf("HIT: %s\n", slv2_value_as_string(slv2_port_get_name(p, port)));
+			++ret;
+		}
+
+		va_end(args);
+	}
+
+	return ret;
+}
+
+
 bool
 slv2_plugin_has_latency(SLV2Plugin p)
 {
diff --git a/utils/lv2_inspect.c b/utils/lv2_inspect.c
index 266d9e6..5aa6a6b 100644
--- a/utils/lv2_inspect.c
+++ b/utils/lv2_inspect.c
@@ -96,7 +96,7 @@ print_plugin(SLV2Plugin p)
 	SLV2Value val = NULL;
 
 	printf("%s\n\n", slv2_value_as_uri(slv2_plugin_get_uri(p)));
-	
+
 	val = slv2_plugin_get_name(p);
 	printf("\tName:              %s\n", slv2_value_as_string(val));
 	slv2_value_free(val);