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FS #6848 - fast vector operations for ARM in Tremor.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12902 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Tomasz Malesinski 2007-03-24 13:45:54 +00:00
parent 467651ae76
commit 25046aac17
5 changed files with 168 additions and 59 deletions
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20
apps/codecs/Tremor/window.c
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@ -68,27 +68,11 @@ void _vorbis_apply_window(ogg_int32_t *d,const void *window_p[2],
long rightbegin=n/2+n/4-rn/4;
long rightend=rightbegin+rn/2;
#ifdef CPU_COLDFIRE
memset((void *)&d[0], 0, sizeof(ogg_int32_t)*leftbegin);
/* mcf5249_vect_zero(&d[0], leftbegin); */
mcf5249_vect_mult_fw(&d[leftbegin], &window[lW][0], leftend-leftbegin);
mcf5249_vect_mult_bw(&d[rightbegin], &window[nW][rn/2-1], rightend-rightbegin);
vect_mult_fw(&d[leftbegin], &window[lW][0], leftend-leftbegin);
vect_mult_bw(&d[rightbegin], &window[nW][rn/2-1], rightend-rightbegin);
memset((void *)&d[rightend], 0, sizeof(ogg_int32_t)*(n-rightend));
/* mcf5249_vect_zero(&d[rightend], n-rightend); */
#else
int i,p;
for(i=0;i<leftbegin;i++)
d[i]=0;
for(p=0;i<leftend;i++,p++)
d[i]=MULT31(d[i],window[lW][p]);
for(i=rightbegin,p=rn/2-1;i<rightend;i++,p--)
d[i]=MULT31(d[i],window[nW][p]);
for(;i<n;i++)
d[i]=0;
#endif
}