Changeset 60 for mppenc/branches/r2d/libmpcpsy/fastmath.h

Timestamp:

09/28/06 18:15:21 (19 years ago)

Author:

r2d

Message:

added a PsyModel struct, too much members in it. some will be removed later

File:

• mppenc/branches/r2d/libmpcpsy/fastmath.h (modified) (1 diff)

mppenc/branches/r2d/libmpcpsy/fastmath.h

@@ -17 +17 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
+
+
+// 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)
+#ifdef FAST_MATH
+# define TABSTEP      64
+# define COSF(x)      my_cos ((float)(x))
+# define ATAN2F(x,y)  my_atan2 ((float)(x), (float)(y))
+# define IFLOORF(x)   my_ifloor ((float)(x))
+#else
+# undef  TABSTEP
+# define COSF(x)      COS (x)
+# define ATAN2F(x,y)  ATAN2 (x,y)
+# define IFLOORF(x)   IFLOOR (x)
+#endif
 
 #if 1