summaryrefslogtreecommitdiffstats
path: root/arts/midi/audiotimer.cc
diff options
context:
space:
mode:
authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commite2de64d6f1beb9e492daf5b886e19933c1fa41dd (patch)
tree9047cf9e6b5c43878d5bf82660adae77ceee097a /arts/midi/audiotimer.cc
downloadtdemultimedia-e2de64d6f1beb9e492daf5b886e19933c1fa41dd.tar.gz
tdemultimedia-e2de64d6f1beb9e492daf5b886e19933c1fa41dd.zip
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdemultimedia@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'arts/midi/audiotimer.cc')
-rw-r--r--arts/midi/audiotimer.cc98
1 files changed, 98 insertions, 0 deletions
diff --git a/arts/midi/audiotimer.cc b/arts/midi/audiotimer.cc
new file mode 100644
index 00000000..354f153b
--- /dev/null
+++ b/arts/midi/audiotimer.cc
@@ -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., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, 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);
+}