Diff: fixed.cpp

Revision:

4:30b2cf4a8ee2

Parent:

3:6f07b5f52c38

Child:

5:50015f4868e2

--- a/fixed.cpp	Wed Dec 19 06:01:00 2012 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,79 +0,0 @@
-/*
- * libmad - MPEG audio decoder library
- * Copyright (C) 2000-2004 Underbit Technologies, Inc.
- *
- * 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
- *
- * $Id: fixed.c,v 1.1 2010/11/23 20:12:57 andy Exp $
- */
-
-#  include "config.h"
-
-# include "global.h"
-
-# include "fixed.h"
-
-/*
- * NAME:	fixed->abs()
- * DESCRIPTION:	return absolute value of a fixed-point number
- */
-mad_fixed_t mad_f_abs(mad_fixed_t x)
-{
-  return x < 0 ? -x : x;
-}
-
-/*
- * NAME:	fixed->div()
- * DESCRIPTION:	perform division using fixed-point math
- */
-mad_fixed_t mad_f_div(mad_fixed_t x, mad_fixed_t y)
-{
-  mad_fixed_t q, r;
-  unsigned int bits;
-
-  q = mad_f_abs(x / y);
-
-  if (x < 0) {
-    x = -x;
-    y = -y;
-  }
-
-  r = x % y;
-
-  if (y < 0) {
-    x = -x;
-    y = -y;
-  }
-
-  if (q > mad_f_intpart(MAD_F_MAX) &&
-      !(q == -mad_f_intpart(MAD_F_MIN) && r == 0 && (x < 0) != (y < 0)))
-    return 0;
-
-  for (bits = MAD_F_FRACBITS; bits && r; --bits) {
-    q <<= 1, r <<= 1;
-    if (r >= y)
-      r -= y, ++q;
-  }
-
-  /* round */
-  if (2 * r >= y)
-    ++q;
-
-  /* fix sign */
-  if ((x < 0) != (y < 0))
-    q = -q;
-
-  return q << bits;
-}