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