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.
95 lines
1.8 KiB
95 lines
1.8 KiB
4 months ago
|
/* 16-bit signed integer dot product
|
||
|
|
* Switch to appropriate versions
|
||
|
|
* Copyright 2004 Phil Karn
|
||
|
|
* May be used under the terms of the GNU Lesser General Public License (LGPL)
|
||
|
|
*/
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include "fec.h"
|
||
|
|
|
||
|
|
void *initdp_port(signed short coeffs[],int len);
|
||
|
|
long dotprod_port(void *p,signed short *b);
|
||
|
|
void freedp_port(void *p);
|
||
|
|
|
||
|
|
#ifdef __i386__
|
||
|
|
void *initdp_mmx(signed short coeffs[],int len);
|
||
|
|
void *initdp_sse2(signed short coeffs[],int len);
|
||
|
|
long dotprod_mmx(void *p,signed short *b);
|
||
|
|
long dotprod_sse2(void *p,signed short *b);
|
||
|
|
void freedp_mmx(void *p);
|
||
|
|
void freedp_sse2(void *p);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef __VEC__
|
||
|
|
void *initdp_av(signed short coeffs[],int len);
|
||
|
|
long dotprod_av(void *p,signed short *b);
|
||
|
|
void freedp_av(void *p);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Create and return a descriptor for use with the dot product function */
|
||
|
|
void *initdp(signed short coeffs[],int len){
|
||
|
|
find_cpu_mode();
|
||
|
|
|
||
|
|
switch(Cpu_mode){
|
||
|
|
case PORT:
|
||
|
|
default:
|
||
|
|
return initdp_port(coeffs,len);
|
||
|
|
#ifdef __i386__
|
||
|
|
case MMX:
|
||
|
|
case SSE:
|
||
|
|
return initdp_mmx(coeffs,len);
|
||
|
|
case SSE2:
|
||
|
|
return initdp_sse2(coeffs,len);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef __VEC__
|
||
|
|
case ALTIVEC:
|
||
|
|
return initdp_av(coeffs,len);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/* Free a dot product descriptor created earlier */
|
||
|
|
void freedp(void *p){
|
||
|
|
switch(Cpu_mode){
|
||
|
|
case PORT:
|
||
|
|
default:
|
||
|
|
#ifdef __i386__
|
||
|
|
case MMX:
|
||
|
|
case SSE:
|
||
|
|
return freedp_mmx(p);
|
||
|
|
case SSE2:
|
||
|
|
return freedp_sse2(p);
|
||
|
|
#endif
|
||
|
|
#ifdef __VEC__
|
||
|
|
case ALTIVEC:
|
||
|
|
return freedp_av(p);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Compute a dot product given a descriptor and an input array
|
||
|
|
* The length is taken from the descriptor
|
||
|
|
*/
|
||
|
|
long dotprod(void *p,signed short a[]){
|
||
|
|
switch(Cpu_mode){
|
||
|
|
case PORT:
|
||
|
|
default:
|
||
|
|
return dotprod_port(p,a);
|
||
|
|
#ifdef __i386__
|
||
|
|
case MMX:
|
||
|
|
case SSE:
|
||
|
|
return dotprod_mmx(p,a);
|
||
|
|
case SSE2:
|
||
|
|
return dotprod_sse2(p,a);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef __VEC__
|
||
|
|
case ALTIVEC:
|
||
|
|
return dotprod_av(p,a);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|