1 files changed, 327 insertions, 61 deletions

diff --git a/libs/ardour/audio_unit.cc b/libs/ardour/audio_unit.cc
index 52cfc187af..25c8aeb53b 100644
--- a/libs/ardour/audio_unit.cc
+++ b/libs/ardour/audio_unit.cc
@@ -18,95 +18,361 @@
 
 */
 
+#include <pbd/transmitter.h>
+#include <pbd/xml++.h>
+
+#include <ardour/audioengine.h>
 #include <ardour/audio_unit.h>
+#include <ardour/session.h>
 #include <ardour/utils.h>
 
+#include <appleutility/CAAudioUnit.h>
+
 #include <CoreServices/CoreServices.h>
 #include <AudioUnit/AudioUnit.h>
 
+#include "i18n.h"
+
+using namespace std;
+using namespace PBD;
 using namespace ARDOUR;
 
-PluginInfoList
-AUPluginInfo::discover ()
+AUPlugin::AUPlugin (AudioEngine& engine, Session& session, CAComponent* _comp)
+	:
+	Plugin (engine, session),
+	comp (_comp),
+	unit (new CAAudioUnit)
+{			
+	OSErr err = CAAudioUnit::Open (*comp, *unit);
+	if (err != noErr) {
+		error << _("AudioUnit: Could not convert CAComponent to CAAudioUnit") << endmsg;
+		delete unit;
+		delete comp;
+		throw failed_constructor ();
+	}
+	
+	unit->Initialize ();
+}
+
+AUPlugin::~AUPlugin ()
 {
-	PluginInfoList plugs;
+	if (unit) {
+		unit->Uninitialize ();
+		delete unit;
+	}
+	
+	if (comp) {
+		delete comp;
+	}
+	
+	if (in_list) {
+		delete in_list;
+	}
+	
+	if (out_list) {
+		delete out_list;
+	}
+}
+
+AUPluginInfo::~AUPluginInfo ()
+{
+	if (desc) {
+		delete desc;
+	}
+}
 
-	int numTypes = 2;    // this magic number was retrieved from the apple AUHost example.
+uint32_t
+AUPlugin::unique_id () const
+{
+	return 0;
+}
 
-	ComponentDescription desc;
-	desc.componentFlags = 0;
-	desc.componentFlagsMask = 0;
-	desc.componentSubType = 0;
-	desc.componentManufacturer = 0;
+const char *
+AUPlugin::label () const
+{
+	return "AUPlugin label";
+}
 
-	vector<ComponentDescription> vCompDescs;
+const char *
+AUPlugin::maker () const
+{
+	return "AUplugin maker";
+}
 
-	for (int i = 0; i < numTypes; ++i) {
-		if (i == 1) {
-			desc.componentType = kAudioUnitType_MusicEffect;
-		} else {
-			desc.componentType = kAudioUnitType_Effect;
-		}
+uint32_t
+AUPlugin::parameter_count () const
+{
+	return 0;
+}
+
+float
+AUPlugin::default_value (uint32_t port)
+{
+	// AudioUnits don't have default values.  Maybe presets though?
+	return 0;
+}
+
+jack_nframes_t
+AUPlugin::latency () const
+{
+	return unit->Latency ();
+}
+
+void
+AUPlugin::set_parameter (uint32_t which, float val)
+{
+	unit->SetParameter (parameter_map[which].first, parameter_map[which].second, 0, val);
+}
+
+float
+AUPlugin::get_parameter (uint32_t which) const
+{
+	float outValue = 0.0;
+	
+	unit->GetParameter(parameter_map[which].first, parameter_map[which].second, 0, outValue);
+	
+	return outValue;
+}
+
+int
+AUPlugin::get_parameter_descriptor (uint32_t which, ParameterDescriptor&) const
+{
+	return -1;
+}
+
+uint32_t
+AUPlugin::nth_parameter (uint32_t which, bool& ok) const
+{
+	return 0;
+}
+
+void
+AUPlugin::activate ()
+{
+	unit->GlobalReset ();
+}
+
+void
+AUPlugin::deactivate ()
+{
+	// not needed.  GlobalReset () takes care of it.
+}
 
-		Component comp = 0;
+void
+AUPlugin::set_block_size (jack_nframes_t nframes)
+{
+	
+}
+
+int
+AUPlugin::connect_and_run (vector<Sample*>& bufs, uint32_t maxbuf, int32_t& in, int32_t& out, jack_nframes_t nframes, jack_nframes_t offset)
+{
+	AudioUnitRenderActionFlags flags = 0;
+	AudioTimeStamp ts;
+	
+	AudioBufferList abl;
+	abl.mNumberBuffers = 1;
+	abl.mBuffers[0].mNumberChannels = 1;
+	abl.mBuffers[0].mDataByteSize = nframes * sizeof(Sample);
+	abl.mBuffers[0].mData = &bufs[0];
+	
+	
+	unit->Render (&flags, &ts, 0, 0, &abl);
+	
+	return 0;
+}
+
+set<uint32_t>
+AUPlugin::automatable() const
+{
+	set<uint32_t> automates;
+	
+	return automates;
+}
 
-		comp = FindNextComponent (NULL, &desc);
-		while (comp != NULL) {
-			ComponentDescription temp;
-			GetComponentInfo (comp, &temp, NULL, NULL, NULL);
-			vCompDescs.push_back(temp);
-			comp = FindNextComponent (comp, &desc);
+void
+AUPlugin::store_state (ARDOUR::PluginState&)
+{
+	
+}
+
+void
+AUPlugin::restore_state (ARDOUR::PluginState&)
+{
+	
+}
+
+string
+AUPlugin::describe_parameter (uint32_t)
+{
+	return "";
+}
+
+void
+AUPlugin::print_parameter (uint32_t, char*, uint32_t len) const
+{
+	
+}
+
+bool
+AUPlugin::parameter_is_audio (uint32_t) const
+{
+	return false;
+}
+
+bool
+AUPlugin::parameter_is_control (uint32_t) const
+{
+	return false;
+}
+
+bool
+AUPlugin::parameter_is_input (uint32_t) const
+{
+	return false;
+}
+
+bool
+AUPlugin::parameter_is_output (uint32_t) const
+{
+	return false;
+}
+
+XMLNode&
+AUPlugin::get_state()
+{
+	XMLNode* root = new XMLNode (state_node_name());
+	
+	return *root;
+}
+
+int
+AUPlugin::set_state(const XMLNode& node)
+{
+	return -1;
+}
+
+bool
+AUPlugin::save_preset (string name)
+{
+	return false;
+}
+
+bool
+AUPlugin::load_preset (const string preset_label)
+{
+	return false;
+}
+
+vector<string>
+AUPlugin::get_presets ()
+{
+	vector<string> presets;
+	
+	return presets;
+}
+
+bool
+AUPlugin::has_editor () const
+{
+	return false;
+}
+
+PluginPtr
+AUPluginInfo::load (Session& session)
+{
+	try {
+		PluginPtr plugin;
+
+		CAComponent* comp = new CAComponent(*desc);
+		
+		if (!comp->IsValid()) {
+			error << ("AudioUnit: not a valid Component") << endmsg;
+		} else {
+			plugin.reset (new AUPlugin (session.engine(), session, comp));
 		}
+		
+		plugin->set_info(PluginInfoPtr(new AUPluginInfo(*this)));
+		return plugin;
 	}
 
-	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);
-			}
-		}
+	catch (failed_constructor &err) {
+		return PluginPtr ((Plugin*) 0);
+	}
+}
 
-		// 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);
+PluginInfoList
+AUPluginInfo::discover ()
+{
+	PluginInfoList plugs;
+
+	CAComponentDescription desc;
+	desc.componentFlags = 0;
+	desc.componentFlagsMask = 0;
+	desc.componentSubType = 0;
+	desc.componentManufacturer = 0;
+	desc.componentType = kAudioUnitType_Effect;
+
+	Component comp = 0;
 
+	comp = FindNextComponent (NULL, &desc);
+	while (comp != NULL) {
+		CAComponentDescription temp;
+		GetComponentInfo (comp, &temp, NULL, NULL, NULL);
+		
 		AUPluginInfoPtr plug(new AUPluginInfo);
-		plug->name = realname;
+		plug->name = AUPluginInfo::get_name (temp);
 		plug->type = PluginInfo::AudioUnit;
 		plug->n_inputs = 0;
 		plug->n_outputs = 0;
 		plug->category = "AudioUnit";
+		plug->desc = new CAComponentDescription(temp);
 
 		plugs.push_back(plug);
+		
+		comp = FindNextComponent (comp, &desc);
 	}
 
 	return plugs;
 }
+
+string
+AUPluginInfo::get_name (CAComponentDescription& comp_desc)
+{
+	CFStringRef itemName = NULL;
+	// Marc Poirier -style item name
+	CAComponent auComponent (comp_desc);
+	if (auComponent.IsValid()) {
+		CAComponentDescription dummydesc;
+		Handle nameHandle = NewHandle(sizeof(void*));
+		if (nameHandle != NULL) {
+			OSErr err = GetComponentInfo(auComponent.Comp(), &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(comp_desc.componentType);
+		CFStringRef compSubTypeString = UTCreateStringForOSType(comp_desc.componentSubType);
+		CFStringRef compManufacturerString = UTCreateStringForOSType(comp_desc.componentManufacturer);
+    
+		itemName = CFStringCreateWithFormat(kCFAllocatorDefault, NULL, CFSTR("%@ - %@ - %@"), 
+			compTypeString, compManufacturerString, compSubTypeString);
+    
+		if (compTypeString != NULL)
+			CFRelease(compTypeString);
+		if (compSubTypeString != NULL)
+			CFRelease(compSubTypeString);
+		if (compManufacturerString != NULL)
+			CFRelease(compManufacturerString);
+	}
+	
+	return CFStringRefToStdString(itemName);
+}