k6opt.h

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/* k6opt.h vector functions optimized for MMX extensions to x86
 *
 * Copyright (C) 1999 by Stanley J. Brooks <[email protected]>
 *
 * Any use of this software is permitted provided that this notice is not
 * removed and that neither the authors nor the Technische Universitaet Berlin
 * are deemed to have made any representations as to the suitability of this
 * software for any purpose nor are held responsible for any defects of
 * this software. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE;
 * not even the implied warranty of MERCHANTABILITY or FITNESS FOR
 * A PARTICULAR PURPOSE.
 *
 * Chicago, 03.12.1999
 * Stanley J. Brooks
 */

extern void Weighting_filter P2((e, x),
 const word * e, /* signal [-5..0.39.44] IN */
 word * x /* signal [0..39] OUT */
)
;

extern longword k6maxcc P3((wt,dp,Nc_out),
 const word *wt,
 const word *dp,
 word * Nc_out /* OUT */
)
;
/*
 * k6maxmin(p,n,out[])
 * input p[n] is array of shorts (require n>0)
 * returns (long) maximum absolute value..
 * if out!=NULL, also returns out[0] the maximum and out[1] the minimum
 */
extern longword k6maxmin P3((p,n,out),
 const word *p,
 int n,
 word *out /* out[0] is max, out[1] is min */
)
;

extern longword k6iprod P3((p,q,n),
 const word *p,
 const word *q,
 int n
)
;

/*
 * k6vsraw(p,n,bits)
 * input p[n] is array of shorts (require n>0)
 * shift/round each to the right by bits>=0 bits.
 */
extern void k6vsraw P3((p,n,bits),
 const word *p,
 int n,
 int bits
)
;

/*
 * k6vsllw(p,n,bits)
 * input p[n] is array of shorts (require n>0)
 * shift each to the left by bits>=0 bits.
 */
extern void k6vsllw P3((p,n,bits),
 const word *p,
 int n,
 int bits
)
;

#if 1 /* there isn't any significant speed gain from mmx here: */
extern void Short_term_analysis_filteringx P4((u0,rp0,k_n,s),
 register word * u0,
 register word * rp0, /* [0..7] IN */
 register int k_n, /* k_end - k_start */
 register word * s /* [0..n-1] IN/OUT */
)
;
/*
#define Short_term_analysis_filtering Short_term_analysis_filteringx
*/
#endif