1 files changed, 45 insertions, 0 deletions
diff --git a/arts/modules/synth/synth_xfade_impl.cc b/arts/modules/synth/synth_xfade_impl.cc
new file mode 100644
index 00000000..acf473ca
--- /dev/null
+++ b/arts/modules/synth/synth_xfade_impl.cc
@@ -0,0 +1,45 @@
+/*
+
+    Copyright (C) 2000 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 "artsmodulessynth.h"
+#include "stdsynthmodule.h"
+
+using namespace Arts;
+
+class Synth_XFADE_impl : virtual public Synth_XFADE_skel,
+							virtual public StdSynthModule
+{
+public:
+	void calculateBlock(unsigned long samples)
+	{
+		unsigned long i;
+
+		for(i=0;i<samples;i++)
+		{
+			float p = (percentage[i]+1)/2;
+
+			outvalue[i] = invalue1[i]*p + invalue2[i]*(1-p);
+		}
+	}
+};
+
+REGISTER_IMPLEMENTATION(Synth_XFADE_impl);