void _vorbis_apply_window(ogg_int32_t *d,const void *window_p[2],
long *blocksizes,
int lW,int W,int nW){
LOOKUP_T *window[2];
long n=blocksizes[W];
long ln=blocksizes[lW];
long rn=blocksizes[nW];
long leftbegin=n/4-ln/4;
long leftend=leftbegin+ln/2;
long rightbegin=n/2+n/4-rn/4;
long rightend=rightbegin+rn/2;
int i,p;
window[0]=(LOOKUP_T*)(window_p[0]);
window[1]=(LOOKUP_T*)(window_p[1]);
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;
}
static inline void TRANSFORM_EQUAL(FFTComplex * z, unsigned int n)
{
register FFTSample t1,t2,t5,t6,temp1,temp2;
register FFTSample * my_z = (FFTSample *)(z);
my_z += n*4;
t2 = MULT31(my_z[0], cPI2_8);
temp1 = MULT31(my_z[1], cPI2_8);
my_z += n*2;
temp2 = MULT31(my_z[0], cPI2_8);
t5 = MULT31(my_z[1], cPI2_8);
t1 = ( temp1 + t2 );
t2 = ( temp1 - t2 );
t6 = ( temp2 + t5 );
t5 = ( temp2 - t5 );
my_z -= n*6;
BUTTERFLIES(z[0],z[n],z[n*2],z[n*3]);
}
