Add Jack D-Bus driver (from Nedko).

git-svn-id: http://svn.drobilla.net/lad/patchage@1167 a436a847-0d15-0410-975c-d299462d15a1

1 files changed, 28 insertions, 1 deletions

diff --git a/src/JackDriver.cpp b/src/JackDriver.cpp
index f77fd32..fc6472b 100644
--- a/src/JackDriver.cpp
+++ b/src/JackDriver.cpp
@@ -489,7 +489,7 @@ JackDriver::jack_buffer_size_cb(jack_nframes_t buffer_size, void* jack_driver)
 
 	me->_buffer_size = buffer_size;
 	me->reset_xruns();
-	me->reset_delay();
+	me->reset_max_dsp_load();
 
 	return 0;
 }
@@ -570,3 +570,30 @@ JackDriver::set_buffer_size(jack_nframes_t size)
 	}
 }
 
+float
+JackDriver::get_max_dsp_load()
+{
+	float max_load;
+	float max_delay;
+
+	max_delay = jack_get_max_delayed_usecs(_client);
+
+	const float rate = sample_rate();
+	const float size = buffer_size();
+	const float period = size / rate * 1000000; // usec 
+		
+	if (max_delay > period) {
+		max_load = 1.0;
+		jack_reset_max_delayed_usecs(_client);
+	} else {
+		max_load = max_delay / period;
+	}
+
+	return max_load;
+}
+
+void
+JackDriver::reset_max_dsp_load()
+{
+		jack_reset_max_delayed_usecs(_client);
+}