Index: mppenc/branches/r2d/common/mpcmath.h
===================================================================
--- mppenc/branches/r2d/common/mpcmath.h	(revision 65)
+++ mppenc/branches/r2d/common/mpcmath.h	(revision 74)
@@ -27,2 +27,33 @@
 #endif
 
+// fast but maybe more inaccurate, use if you need speed
+#if defined(__GNUC__) && !defined(__APPLE__)
+#  define SIN(x)      sinf ((float)(x))
+#  define COS(x)      cosf ((float)(x))
+#  define ATAN2(x,y)  atan2f ((float)(x), (float)(y))
+#  define SQRT(x)     sqrtf ((float)(x))
+#  define LOG(x)      logf ((float)(x))
+#  define LOG10(x)    log10f ((float)(x))
+#  define POW(x,y)    expf (logf(x) * (y))
+#  define POW10(x)    expf (M_LN10 * (x))
+#  define FLOOR(x)    floorf ((float)(x))
+#  define IFLOOR(x)   (int) floorf ((float)(x))
+#  define FABS(x)     fabsf ((float)(x))
+#else
+# define SIN(x)      (float) sin (x)
+# define COS(x)      (float) cos (x)
+# define ATAN2(x,y)  (float) atan2 (x, y)
+# define SQRT(x)     (float) sqrt (x)
+# define LOG(x)      (float) log (x)
+# define LOG10(x)    (float) log10 (x)
+# define POW(x,y)    (float) pow (x,y)
+# define POW10(x)    (float) pow (10., (x))
+# define FLOOR(x)    (float) floor (x)
+# define IFLOOR(x)   (int)   floor (x)
+# define FABS(x)     (float) fabs (x)
+#endif
+
+#define SQRTF(x)     SQRT (x)
+#define COSF(x)      COS (x)
+#define ATAN2F(x,y)  ATAN2 (x,y)
+#define IFLOORF(x)   IFLOOR (x)