plug some memory leaks in libs

libs/ardour/buffer_set.cc

@@ -87,6 +87,13 @@ BufferSet::clear()
 	_vst_buffers.clear ();
 #endif
 
+#ifdef LV2_SUPPORT
+	for (LV2Buffers::iterator i = _lv2_buffers.begin(); i != _lv2_buffers.end(); ++i) {
+		delete (*i).second;
+	}
+	_lv2_buffers.clear ();
+#endif
+
 }
 
 /** Set up this BufferSet so that its data structures mirror a PortSet's buffers.

libs/ardour/graph.cc

@@ -459,6 +459,7 @@ Graph::main_thread()
         }
 
         pt->drop_buffers();
+        delete (pt);
 }
 
 void

libs/ardour/lv2_plugin.cc

@@ -699,6 +699,7 @@ LV2Plugin::~LV2Plugin ()
 
 	delete [] _control_data;
 	delete [] _shadow_data;
+	delete [] _defaults;
 	delete [] _ev_buffers;
 }
 

libs/gtkmm2ext/gtkmm2ext/pixfader.h

@@ -36,6 +36,7 @@ class LIBGTKMM2EXT_API PixFader : public CairoWidget
 	public:
 	PixFader (Gtk::Adjustment& adjustment, int orientation, int span, int girth);
 	virtual ~PixFader ();
+	static void flush_pattern_cache();
 
 	sigc::signal<void> StartGesture;
 	sigc::signal<void> StopGesture;

libs/gtkmm2ext/pixfader.cc

@@ -85,6 +85,15 @@ PixFader::~PixFader ()
 	if (_layout) _layout.clear (); // drop reference to existing layout
 }
 
+void
+PixFader::flush_pattern_cache () {
+	for (list<FaderImage*>::iterator f = _patterns.begin(); f != _patterns.end(); ++f) {
+		cairo_pattern_destroy ((*f)->pattern);
+	}
+	_patterns.clear();
+}
+
+
 cairo_pattern_t*
 PixFader::find_pattern (double afr, double afg, double afb,
 			double abr, double abg, double abb,

libs/midi++2/port.cc

@@ -81,6 +81,8 @@ Port::~Port ()
 	for (int i = 0; i < 16; i++) {
 		delete _channel[i];
 	}
+
+	delete _parser;
 }
 
 /** Send a clock tick message.

libs/pbd/fpu.cc

@@ -129,6 +129,13 @@ FPU::instance()
 	return _instance;
 }
 
+void
+FPU::destroy ()
+{
+	delete _instance;
+	_instance = 0;
+}
+
 FPU::FPU ()
 	: _flags ((Flags) 0)
 {

libs/pbd/pbd.cc

@@ -34,6 +34,7 @@
 #include "pbd/error.h"
 #include "pbd/id.h"
 #include "pbd/enumwriter.h"
+#include "pbd/fpu.h"
 
 #ifdef PLATFORM_WINDOWS
 #include <winsock2.h>
@@ -111,4 +112,5 @@ PBD::cleanup ()
 #endif	
 
 	EnumWriter::destroy ();
+	FPU::destroy ();
 }

libs/pbd/pbd/fpu.h

@@ -38,6 +38,7 @@ class LIBPBD_API FPU {
 	~FPU ();
 
 	static FPU* instance();
+	static void destroy();
 	
 	bool has_flush_to_zero () const { return _flags & HasFlushToZero; }
 	bool has_denormals_are_zero () const { return _flags & HasDenormalsAreZero; }