You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
80 lines
2.5 KiB
80 lines
2.5 KiB
/* Copyright (C) 2003 Jean-Marc Valin */
|
|
/**
|
|
@file fixed_c5x.h
|
|
@brief Fixed-point operations for the TI C5x DSP family
|
|
*/
|
|
/*
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions
|
|
are met:
|
|
|
|
- Redistributions of source code must retain the above copyright
|
|
notice, this list of conditions and the following disclaimer.
|
|
|
|
- Redistributions in binary form must reproduce the above copyright
|
|
notice, this list of conditions and the following disclaimer in the
|
|
documentation and/or other materials provided with the distribution.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
|
|
OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
|
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
|
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
|
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef FIXED_C5X_H
|
|
#define FIXED_C5X_H
|
|
|
|
#include "dsplib.h"
|
|
|
|
#undef IMUL32
|
|
static OPUS_INLINE long IMUL32(long i, long j)
|
|
{
|
|
long ac0, ac1;
|
|
ac0 = _lmpy(i>>16,j);
|
|
ac1 = ac0 + _lmpy(i,j>>16);
|
|
return _lmpyu(i,j) + (ac1<<16);
|
|
}
|
|
|
|
#undef MAX16
|
|
#define MAX16(a,b) _max(a,b)
|
|
|
|
#undef MIN16
|
|
#define MIN16(a,b) _min(a,b)
|
|
|
|
#undef MAX32
|
|
#define MAX32(a,b) _lmax(a,b)
|
|
|
|
#undef MIN32
|
|
#define MIN32(a,b) _lmin(a,b)
|
|
|
|
#undef VSHR32
|
|
#define VSHR32(a, shift) _lshl(a,-(shift))
|
|
|
|
#undef MULT16_16_Q15
|
|
#define MULT16_16_Q15(a,b) (_smpy(a,b))
|
|
|
|
#undef MULT16_16SU
|
|
#define MULT16_16SU(a,b) _lmpysu(a,b)
|
|
|
|
#undef MULT_16_16
|
|
#define MULT_16_16(a,b) _lmpy(a,b)
|
|
|
|
/* FIXME: This is technically incorrect and is bound to cause problems. Is there any cleaner solution? */
|
|
#undef MULT16_32_Q15
|
|
#define MULT16_32_Q15(a,b) ADD32(SHL(MULT16_16((a),SHR((b),16)),1), SHR(MULT16_16SU((a),(b)),15))
|
|
|
|
#define celt_ilog2(x) (30 - _lnorm(x))
|
|
#define OVERRIDE_CELT_ILOG2
|
|
|
|
#define celt_maxabs16(x, len) MAX32(EXTEND32(maxval((DATA *)x, len)),-EXTEND32(minval((DATA *)x, len)))
|
|
#define OVERRIDE_CELT_MAXABS16
|
|
|
|
#endif /* FIXED_C5X_H */
|