if(dy<8) dst[x]= (32*a2*( 8-dy) +    am* dy    + 128)>>8; else     dst[x]= (   am*(16-dy) + 32*a3*(dy-8) + 128)>>8;
if(dy<8) am =  (32*a2*( 8-dy) +    am* dy    + 128)>>8; else     am = (   am*(16-dy) + 32*a3*(dy-8) + 128)>>8;
static void mc_block(uint8_t *dst, uint8_t *src, uint8_t *tmp, int stride, int b_w, int b_h, int dx, int dy){    int x, y;START_TIMER    for(y=0; y < b_h+5; y++){        for(x=0; x < b_w; x++){            int a0= src[x    ];            int a1= src[x + 1];            int a2= src[x + 2];            int a3= src[x + 3];            int a4= src[x + 4];            int a5= src[x + 5];//            int am= 9*(a1+a2) - (a0+a3);            int am= 20*(a2+a3) - 5*(a1+a4) + (a0+a5);//            int am= 18*(a2+a3) - 2*(a1+a4);//             int aL= (-7*a0 + 105*a1 + 35*a2 - 5*a3)>>3;//             int aR= (-7*a3 + 105*a2 + 35*a1 - 5*a0)>>3;//            if(b_w==16) am= 8*(a1+a2);            if(dx<8) tmp[x]= (32*a2*( 8-dx) +    am* dx    + 128)>>8;            else     tmp[x]= (   am*(16-dx) + 32*a3*(dx-8) + 128)>>8;/*            if     (dx< 4) tmp[x + y*stride]= (16*a1*( 4-dx) +    aL* dx     + 32)>>6;            else if(dx< 8) tmp[x + y*stride]= (   aL*( 8-dx) +    am*(dx- 4) + 32)>>6;            else if(dx<12) tmp[x + y*stride]= (   am*(12-dx) +    aR*(dx- 8) + 32)>>6;            else           tmp[x + y*stride]= (   aR*(16-dx) + 16*a2*(dx-12) + 32)>>6;*/        }        tmp += stride;        src += stride;    }    tmp -= (b_h+5)*stride;        for(y=0; y < b_h; y++){        for(x=0; x < b_w; x++){            int a0= tmp[x + 0*stride];            int a1= tmp[x + 1*stride];            int a2= tmp[x + 2*stride];            int a3= tmp[x + 3*stride];            int a4= tmp[x + 4*stride];            int a5= tmp[x + 5*stride];            int am= 20*(a2+a3) - 5*(a1+a4) + (a0+a5);//            int am= 18*(a2+a3) - 2*(a1+a4);/*            int aL= (-7*a0 + 105*a1 + 35*a2 - 5*a3)>>3;            int aR= (-7*a3 + 105*a2 + 35*a1 - 5*a0)>>3;*/            //            if(b_w==16) am= 8*(a1+a2);            if(dy<8) dst[x]= (32*a2*( 8-dy) +    am* dy    + 128)>>8;            else     dst[x]= (   am*(16-dy) + 32*a3*(dy-8) + 128)>>8;/*            if     (dy< 4) tmp[x + y*stride]= (16*a1*( 4-dy) +    aL* dy     + 32)>>6;            else if(dy< 8) tmp[x + y*stride]= (   aL*( 8-dy) +    am*(dy- 4) + 32)>>6;            else if(dy<12) tmp[x + y*stride]= (   am*(12-dy) +    aR*(dy- 8) + 32)>>6;            else           tmp[x + y*stride]= (   aR*(16-dy) + 16*a2*(dy-12) + 32)>>6;*/        }        dst += stride;        tmp += stride;    }STOP_TIMER("mc_block")}