From 0c4869dc35a15757915ebbddcdd7077d788ca91e Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Thu, 20 Nov 2014 02:46:30 +0100
Subject: [PATCH] debug trace lost midi-messages

---
 libs/ardour/midi_port.cc | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/libs/ardour/midi_port.cc b/libs/ardour/midi_port.cc
index 82dabc4cba..1377938f2e 100644
--- a/libs/ardour/midi_port.cc
+++ b/libs/ardour/midi_port.cc
@@ -19,12 +19,17 @@
 #include <cassert>
 #include <iostream>
 
+#include "pbd/compose.h"
+#include "pbd/debug.h"
+
 #include "ardour/midi_port.h"
 #include "ardour/data_type.h"
 #include "ardour/audioengine.h"
+#include "ardour/debug.h"
 
-using namespace ARDOUR;
 using namespace std;
+using namespace ARDOUR;
+using namespace PBD;
 
 #define port_engine AudioEngine::instance()->port_engine()
 
@@ -197,6 +202,21 @@ MidiPort::flush_buffers (pframes_t nframes)
 
 			// event times are in frames, relative to cycle start
 
+#ifndef NDEBUG
+	if (DEBUG::MidiIO & PBD::debug_bits) {
+		DEBUG_STR_DECL(a);
+		DEBUG_STR_APPEND(a, string_compose ("MidiPort %1 pop event    @ %2 sz %3 ", this, ev.time(), ev.size()));
+		for (size_t i=0; i < ev.size(); ++i) {
+			DEBUG_STR_APPEND(a,hex);
+			DEBUG_STR_APPEND(a,"0x");
+			DEBUG_STR_APPEND(a,(int)(ev.buffer()[i]));
+			DEBUG_STR_APPEND(a,' ');
+		}
+		DEBUG_STR_APPEND(a,'\n');
+		DEBUG_TRACE (DEBUG::MidiIO, DEBUG_STR(a).str());
+	}
+#endif
+
 			assert (ev.time() < (nframes + _global_port_buffer_offset + _port_buffer_offset));
 
 			if (ev.time() >= _global_port_buffer_offset + _port_buffer_offset) {