void func(BYTE*src, int width, int height, int pitchSrc, BYTE *dst, int t_width, int t_height, int pitchDes)
{
       float fw = float(width)/ (t_width);
       float fh = float(height)/ (t_height);
       float x0, y0;
       int y1, y2, x1, x2, x, y;
       float fx1, fx2, fy1, fy2;
       float s1,s2,s3,s4;
       BYTEtemp,p11,p12,p21,p22;
       BYTE *p1=dst;
 
       for(y=0; y<t_height; y++)
       {
              y0 =y*fh;
              y1 = int(y0);
              if(y1 == height-1)   y2 = y1;
              else y2 = y1 + 1;
              fy1 =y1-y0;
              fy2 =1.0f - fy1;
              for(x=0; x<t_width; x++)
              {
                     x0= x*fw;
                     x1= int(x0);
                     if(x1 == width-1)   x2 = x1;
                     else x2 = x1+1;
                     fx1= x1-x0;
                     fx2= 1.0f - fx1;
 		     s1 = fx2*fy2;
                     s2= fx1*fy2;
                     s3= fx1*fy1;
                     s4= fx2*fy1;
 
                     p11= *(src + pitchSrc*y1 + x1);
                     p12= *(src + pitchSrc*y1 + x2);
                     p21= *(src + pitchSrc*y2 + x1);
                     p22= *(src + pitchSrc*y2 + x2);
 
                     temp=(BYTE)(p22*s3) + (BYTE)(p21*s4) + (BYTE)(p12*s2) + (BYTE)(p11*s1);
                     *p1=temp;
                     *(++p1)=temp;
                     *(++p1)=temp;
                     p1++;
              }
              p1 =dst + y*pitchDes;
       }
}