Update from personal repository.

* Added an initial "formant preservation" option when pitch shifting
 * Real-time pitch shifting now uses a faster method by default, with
   less variation in CPU usage
 * The code is more amenable to compiler auto-vectorization (through
   e.g. gcc --ftree-vectorize).

src/sysutils.h

@@ -3,7 +3,7 @@
 /*
     Rubber Band
     An audio time-stretching and pitch-shifting library.
-    Copyright 2007 Chris Cannam.
+    Copyright 2007-2008 Chris Cannam.
     
     This program is free software; you can redistribute it and/or
     modify it under the terms of the GNU General Public License as
@@ -15,14 +15,29 @@
 #ifndef _RUBBERBAND_SYSINFO_H_
 #define _RUBBERBAND_SYSINFO_H_
 
+#ifdef _WIN32
+#include "bsd-3rdparty/float_cast/float_cast.h"
+#endif
+
 namespace RubberBand {
 
 extern bool system_is_multiprocessor();
 
 #ifdef _WIN32
+
+#define R__ __restrict
+
 struct timeval { long tv_sec; long tv_usec; };
-void gettimeofday(struct timeval *p, void *tz);
+int gettimeofday(struct timeval *p, void *tz);
+
 void usleep(unsigned long);
+
+#define alloca _alloca
+
+#else
+
+#define R__ __restrict__
+
 #endif
 
 }