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

1 files changed, 51 insertions, 0 deletions

diff --git a/arts/modules/synth/synth_brickwall_limiter_impl.cc b/arts/modules/synth/synth_brickwall_limiter_impl.cc
new file mode 100644
index 00000000..107fe47a
--- /dev/null
+++ b/arts/modules/synth/synth_brickwall_limiter_impl.cc
@@ -0,0 +1,51 @@
+/*
+
+    Copyright (C) 2000 Jeff Tranter
+                       tranter@pobox.com
+
+    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;
+
+// A brickwall limiter is used to protect equipment (and your ears..)
+// from peaks that exceed the dynamic range of your system. It doesn't
+// sound good but it's better than digital distortion.
+
+class Synth_BRICKWALL_LIMITER_impl : virtual public Synth_BRICKWALL_LIMITER_skel,
+							virtual public StdSynthModule
+{
+public:
+	void calculateBlock(unsigned long samples)
+	{
+		unsigned long i;
+		for(i=0; i<samples; i++)
+		{
+			if (invalue[i] > 1.0)
+				outvalue[i] = 1.0;
+			else if (invalue[i] < -1.0)
+				outvalue[i] = -1.0;
+			else
+				outvalue[i] = invalue[i];
+		}
+	}
+};
+
+REGISTER_IMPLEMENTATION(Synth_BRICKWALL_LIMITER_impl);