MixerProfiler: initial simple implementation

include/MixerProfiler.h

@@ -0,0 +1,60 @@
+/*
+ * MixerProfiler.h - class for profiling performance of Mixer
+ *
+ * Copyright (c) 2014 Tobias Doerffel <tobydox/at/users.sourceforge.net>
+ *
+ * This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
+ *
+ * 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 (see COPYING); if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301 USA.
+ *
+ */
+
+#ifndef MIXER_PROFILER_H
+#define MIXER_PROFILER_H
+
+#include <QFile>
+
+#include "MicroTimer.h"
+
+class MixerProfiler
+{
+public:
+	MixerProfiler();
+	~MixerProfiler();
+
+	void startPeriod()
+	{
+		m_periodTimer.reset();
+	}
+
+	void finishPeriod( sample_rate_t sampleRate, fpp_t framesPerPeriod );
+
+	int cpuLoad() const
+	{
+		return m_cpuLoad;
+	}
+
+	void setOutputFile( const QString& outputFile );
+
+
+private:
+	MicroTimer m_periodTimer;
+	int m_cpuLoad;
+	QFile m_outputFile;
+
+};
+
+#endif