Start adding Loris files

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diff --git a/src/loris/BreakpointUtils.C b/src/loris/BreakpointUtils.C
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+/*
+ * This is the Loris C++ Class Library, implementing analysis, 
+ * manipulation, and synthesis of digitized sounds using the Reassigned 
+ * Bandwidth-Enhanced Additive Sound Model.
+ *
+ * Loris is Copyright (c) 1999-2010 by Kelly Fitz and Lippold Haken
+ *
+ * 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; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ *
+ * BreakpointUtils.C
+ *
+ * Out-of-line Breakpoint utility functions collected in namespace BreakpointUtils.
+ *
+ * Kelly Fitz, 19 June 2003
+ * loris@cerlsoundgroup.org
+ *
+ * http://www.cerlsoundgroup.org/Loris/
+ *
+ */
+
+#if HAVE_CONFIG_H
+	#include "config.h"
+#endif
+
+#include "BreakpointUtils.h"
+#include "Breakpoint.h"
+
+#include <cmath>
+#if defined(HAVE_M_PI) && (HAVE_M_PI)
+	const double Pi = M_PI;
+#else
+	const double Pi = 3.14159265358979324;
+#endif
+
+//	begin namespace
+namespace Loris {
+
+// ---------------------------------------------------------------------------
+//	makeNullBefore
+// ---------------------------------------------------------------------------
+// 	Return a null (zero-amplitude) Breakpoint to preceed the specified 
+//	Breakpoint, useful for fading in a Partial.
+//
+Breakpoint 
+BreakpointUtils::makeNullBefore( const Breakpoint & bp, double fadeTime )
+{
+	Breakpoint ret( bp );
+	// adjust phase
+	double dp = 2. * Pi * fadeTime * bp.frequency();
+	ret.setPhase( std::fmod( bp.phase() - dp, 2. * Pi ) );
+	ret.setAmplitude(0.);
+	ret.setBandwidth(0.);
+	
+	return ret;
+}
+
+// ---------------------------------------------------------------------------
+//	makeNullAfter
+// ---------------------------------------------------------------------------
+// 	Return a null (zero-amplitude) Breakpoint to succeed the specified 
+//	Breakpoint, useful for fading out a Partial.
+//
+Breakpoint 
+BreakpointUtils::makeNullAfter( const Breakpoint & bp, double fadeTime )
+{
+	Breakpoint ret( bp );
+	// adjust phase
+	double dp = 2. * Pi * fadeTime * bp.frequency();
+	ret.setPhase( std::fmod( bp.phase() + dp, 2. * Pi ) );
+	ret.setAmplitude(0.);
+	ret.setBandwidth(0.);
+
+	return ret;
+}
+
+}	//	end of namespace Loris