1 files changed, 121 insertions, 0 deletions
diff --git a/gtk2_ardour/dsp_load_gauge.cc b/gtk2_ardour/dsp_load_gauge.cc
new file mode 100644
index 0000000000..46ff15400b
--- /dev/null
+++ b/gtk2_ardour/dsp_load_gauge.cc
@@ -0,0 +1,121 @@
+/*
+ * Copyright (C) 2017 Robin Gareus <robin@gareus.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#include "ardour_ui.h"
+#include "dsp_load_gauge.h"
+
+#include "ardour/audioengine.h"
+
+#include "pbd/i18n.h"
+
+#define PADDING 3
+
+DspLoadGauge::DspLoadGauge ()
+	: ArdourGauge ("00.0%")
+	, _dsp_load (0)
+	, _xrun_count (0)
+	, _xrun_while_recording (false)
+{
+}
+
+void
+DspLoadGauge::set_xrun_count (const unsigned int xruns)
+{
+	if (xruns == _xrun_count) {
+		return;
+	}
+	_xrun_count = xruns;
+	update ();
+}
+
+void
+DspLoadGauge::set_dsp_load (const double load)
+{
+	if (load == _dsp_load) {
+		return;
+	}
+	_dsp_load = load;
+
+	char buf[64];
+	if (_xrun_count > 0) {
+		snprintf (buf, sizeof (buf), "DSP: %.1f%% (%d)", _dsp_load, _xrun_count);
+	} else {
+		snprintf (buf, sizeof (buf), "DSP: %.1f%%", _dsp_load);
+	}
+	update (std::string (buf));
+}
+
+float
+DspLoadGauge::level () const {
+	return (100.0-_dsp_load) / 100.f;
+}
+
+bool
+DspLoadGauge::alert () const
+{
+	bool ret = false;
+	
+	//xrun while recording
+	ret |= _xrun_while_recording;
+
+	//engine OFF
+	ret |= !ARDOUR::AudioEngine::instance()->running();
+	
+	return ret;
+}
+
+ArdourGauge::Status
+DspLoadGauge::indicator () const
+{
+	if (_dsp_load > 90) {
+		return ArdourGauge::Level_CRIT;
+	} else if (_dsp_load > 80) {
+		return ArdourGauge::Level_WARN;
+	} else {
+		return ArdourGauge::Level_OK;
+	}
+}
+
+std::string
+DspLoadGauge::tooltip_text ()
+{
+	char buf[64];
+
+	//xruns
+	if (_xrun_count == UINT_MAX) {
+		snprintf (buf, sizeof (buf), _("DSP: %.1f%% X: ?\nClick to clear xruns."), _dsp_load);
+	} else if (_xrun_count > 9999) {
+		snprintf (buf, sizeof (buf), _("DSP: %.1f%% X: >10k\nClick to clear xruns."), _dsp_load);
+	} else {
+		snprintf (buf, sizeof (buf), _("DSP: %.1f%% X: %u\nClick to clear xruns."), _dsp_load, _xrun_count);
+	}
+
+	return buf;
+}
+
+bool
+DspLoadGauge::on_button_release_event (GdkEventButton *ev)
+{
+	ARDOUR::Session* s = ARDOUR_UI::instance ()->the_session ();
+	if (s) {
+		s->reset_xrun_count ();
+		_xrun_while_recording = false;
+		queue_draw();
+	}
+	return true;
+}