1 files changed, 98 insertions, 0 deletions
diff --git a/arts/midi/audiotimer.cpp b/arts/midi/audiotimer.cpp
new file mode 100644
index 00000000..a80e551c
--- /dev/null
+++ b/arts/midi/audiotimer.cpp
@@ -0,0 +1,98 @@
+    /*
+
+    Copyright (C) 2001-2002 Stefan Westerfeld
+                            stefan@space.twc.de
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+  
+    This library 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
+    Library General Public License for more details.
+   
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+
+    */
+
+#include "artsmidi.h"
+#include "artsflow.h"
+#include "stdsynthmodule.h"
+#include "debug.h"
+#include "miditimercommon.h"
+#include "audiotimer.h"
+#include "flowsystem.h"
+
+using namespace std;
+using namespace Arts;
+
+static AudioTimer *AudioTimer_the = 0;
+
+AudioTimer::AudioTimer()
+{
+	AudioTimer_the = this;
+	samples = seconds = 0;
+}
+
+AudioTimer::~AudioTimer()
+{
+	AudioTimer_the = 0;
+}
+
+TimeStamp AudioTimer::time()
+{
+	return TimeStamp(seconds,
+				(long)((float)samples / samplingRateFloat * 1000000.0));
+}
+
+void AudioTimer::notify(const Notification &)
+{
+	list<AudioTimerCallback *>::iterator i;
+	for(i = callbacks.begin(); i != callbacks.end(); i++)
+		(*i)->updateTime();
+}
+
+void AudioTimer::calculateBlock(unsigned long s)
+{
+	samples += s;
+	while(samples > samplingRate)
+	{
+		samples -= samplingRate;
+		seconds++;
+	}
+	Notification n;
+	n.receiver = this;
+	n.ID = 0;
+	n.data = 0;
+	n.internal = 0;
+	NotificationManager::the()->send(n);
+}
+
+AudioTimer *AudioTimer::subscribe()
+{
+	if(!AudioTimer_the)
+	{
+		new AudioTimer();
+		AudioTimer_the->_node()->start();
+	}
+	else
+	{
+		AudioTimer_the->_copy();
+	}
+	return AudioTimer_the;
+}
+
+void AudioTimer::addCallback(AudioTimerCallback *callback)
+{
+	callbacks.push_back(callback);
+}
+
+void AudioTimer::removeCallback(AudioTimerCallback *callback)
+{
+	callbacks.remove(callback);
+}