1 files changed, 93 insertions, 0 deletions
diff --git a/libs/ardour/audio_unit.cc b/libs/ardour/audio_unit.cc
index 5d7e7ae90c..52cfc187af 100644
--- a/libs/ardour/audio_unit.cc
+++ b/libs/ardour/audio_unit.cc
@@ -17,3 +17,96 @@
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
 */
+
+#include <ardour/audio_unit.h>
+#include <ardour/utils.h>
+
+#include <CoreServices/CoreServices.h>
+#include <AudioUnit/AudioUnit.h>
+
+using namespace ARDOUR;
+
+PluginInfoList
+AUPluginInfo::discover ()
+{
+	PluginInfoList plugs;
+
+	int numTypes = 2;    // this magic number was retrieved from the apple AUHost example.
+
+	ComponentDescription desc;
+	desc.componentFlags = 0;
+	desc.componentFlagsMask = 0;
+	desc.componentSubType = 0;
+	desc.componentManufacturer = 0;
+
+	vector<ComponentDescription> vCompDescs;
+
+	for (int i = 0; i < numTypes; ++i) {
+		if (i == 1) {
+			desc.componentType = kAudioUnitType_MusicEffect;
+		} else {
+			desc.componentType = kAudioUnitType_Effect;
+		}
+
+		Component comp = 0;
+
+		comp = FindNextComponent (NULL, &desc);
+		while (comp != NULL) {
+			ComponentDescription temp;
+			GetComponentInfo (comp, &temp, NULL, NULL, NULL);
+			vCompDescs.push_back(temp);
+			comp = FindNextComponent (comp, &desc);
+		}
+	}
+
+	for (unsigned int i = 0; i < vCompDescs.size(); ++i) {
+
+		// the following large block is just for determining the name of the plugin.
+		CFStringRef itemName = NULL;
+		// Marc Poirier -style item name
+		Component auComponent = FindNextComponent (0, &(vCompDescs[i]));
+		if (auComponent != NULL) {
+			ComponentDescription dummydesc;
+			Handle nameHandle = NewHandle(sizeof(void*));
+			if (nameHandle != NULL) {
+				OSErr err = GetComponentInfo(auComponent, &dummydesc, nameHandle, NULL, NULL);
+				if (err == noErr) {
+					ConstStr255Param nameString = (ConstStr255Param) (*nameHandle);
+					if (nameString != NULL) {
+						itemName = CFStringCreateWithPascalString(kCFAllocatorDefault, nameString, CFStringGetSystemEncoding());
+					}
+				}
+				DisposeHandle(nameHandle);
+			}
+		}
+
+		// if Marc-style fails, do the original way
+		if (itemName == NULL) {
+			CFStringRef compTypeString = UTCreateStringForOSType(vCompDescs[i].componentType);
+			CFStringRef compSubTypeString = UTCreateStringForOSType(vCompDescs[i].componentSubType);
+			CFStringRef compManufacturerString = UTCreateStringForOSType(vCompDescs[i].componentManufacturer);
+
+			itemName = CFStringCreateWithFormat(kCFAllocatorDefault, NULL, CFSTR("%@ - %@ - %@"), 
+				compTypeString, compManufacturerString, compSubTypeString);
+
+			if (compTypeString != NULL)
+				CFRelease(compTypeString);
+			if (compSubTypeString != NULL)
+				CFRelease(compSubTypeString);
+			if (compManufacturerString != NULL)
+				CFRelease(compManufacturerString);
+		}
+		string realname = CFStringRefToStdString(itemName);
+
+		AUPluginInfoPtr plug(new AUPluginInfo);
+		plug->name = realname;
+		plug->type = PluginInfo::AudioUnit;
+		plug->n_inputs = 0;
+		plug->n_outputs = 0;
+		plug->category = "AudioUnit";
+
+		plugs.push_back(plug);
+	}
+
+	return plugs;
+}