Make fixepoint.c as a shared library (libfixedpoint.a).

Change-Id: Icc10d6e85f890c432f191233a4d64e09f00be43d
Reviewed-on: http://gerrit.rockbox.org/456
Reviewed-by: Michael Sevakis <jethead71@rockbox.org>
Tested-by: Michael Sevakis <jethead71@rockbox.org>

1 files changed, 0 insertions, 116 deletions

diff --git a/firmware/include/fixedpoint.h b/firmware/include/fixedpoint.h
deleted file mode 100644
index 584bd58..0000000
--- a/firmware/include/fixedpoint.h
+++ /dev/null
@@ -1,116 +0,0 @@
-/***************************************************************************
- *             __________               __   ___.
- *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
- *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
- *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
- *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
- *                     \/            \/     \/    \/            \/
- * $Id$
- *
- * Copyright (C) 2006 Jens Arnold
- *
- * Fixed point library for plugins
- *
- * 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
- * KIND, either express or implied.
- *
- ****************************************************************************/
-
-/** FIXED POINT MATH ROUTINES - USAGE
- *
- *  - x and y arguments are fixed point integers
- *  - fracbits is the number of fractional bits in the argument(s)
- *  - functions return long fixed point integers with the specified number
- *    of fractional bits unless otherwise specified
- *
- *  Multiply two fixed point numbers:
- *      fp_mul(x, y, fracbits)
- *
- *  Divide two fixed point numbers:
- *      fp_div(x, y, fracbits)
- *
- *  Calculate sin and cos of an angle:
- *      fp_sincos(phase, *cos)
- *          where phase is a 32 bit unsigned integer with 0 representing 0
- *          and 0xFFFFFFFF representing 2*pi, and *cos is the address to
- *          a long signed integer.  Value returned is a long signed integer
- *          from -0x80000000 to 0x7fffffff, representing -1 to 1 respectively.
- *          That is, value is a fixed point integer with 31 fractional bits.
- *
- *  Take square root of a fixed point number:
- *      fp_sqrt(x, fracbits)
- *
- *  Take the square root of an integer:
- *      isqrt(x)
- *
- *  Calculate sin or cos of an angle (very fast, from a table):
- *      fp14_sin(angle)
- *      fp14_cos(angle)
- *          where angle is a non-fixed point integer in degrees.  Value
- *          returned is a fixed point integer with 14 fractional bits.
- *
- *  Calculate the exponential of a fixed point integer
- *      fp16_exp(x)
- *          where x and the value returned are fixed point integers
- *          with 16 fractional bits.
- *
- *  Calculate the natural log of a positive fixed point integer
- *      fp16_log(x)
- *          where x and the value returned are fixed point integers
- *          with 16 fractional bits.
- *
- *  Calculate decibel equivalent of a gain factor:
- *      fp_decibels(factor, fracbits)
- *          where fracbits is in the range 12 to 22 (higher is better),
- *          and factor is a positive fixed point integer.
- *
- *  Calculate factor equivalent of a decibel value:
- *      fp_factor(decibels, fracbits)
- *          where fracbits is in the range 12 to 22 (lower is better),
- *          and decibels is a fixed point integer.
- */
-
-#ifndef FIXEDPOINT_H
-#define FIXEDPOINT_H
-
-#define fp_mul(x, y, z) (long)((((long long)(x)) * ((long long)(y))) >> (z))
-#define fp_div(x, y, z) (long)((((long long)(x)) << (z)) / ((long long)(y)))
-
-long fp_sincos(unsigned long phase, long *cos);
-long fp_sqrt(long a, unsigned int fracbits);
-long fp14_cos(int val);
-long fp14_sin(int val);
-long fp16_log(int x);
-long fp16_exp(int x);
-
-unsigned long isqrt(unsigned long x);
-
-/* fast unsigned multiplication (16x16bit->32bit or 32x32bit->32bit,
- * whichever is faster for the architecture) */
-#ifdef CPU_ARM
-#define FMULU(a, b) ((uint32_t) (((uint32_t) (a)) * ((uint32_t) (b))))
-#else /* SH1, coldfire */
-#define FMULU(a, b) ((uint32_t) (((uint16_t) (a)) * ((uint16_t) (b))))
-#endif
-
-/** MODIFIED FROM replaygain.c */
-#define FP_INF          (0x7fffffff)
-#define FP_NEGINF      -(0x7fffffff)
-
-/** FIXED POINT EXP10
- * Return 10^x as FP integer.  Argument is FP integer.
- */
-long fp_exp10(long x, unsigned int fracbits);
-
-/* fracbits in range 12 - 22 work well. Higher is better for
- * calculating dB, lower is better for calculating factor.
- */
-/* long fp_decibels(unsigned long factor, unsigned int fracbits); */
-long fp_factor(long decibels, unsigned int fracbits);
-
-#endif /* FIXEDPOINT_H */