1 __global__ void kernel_median5_2pix( short *output,
4 int j= __mul24(__mul24(blockIdx.x,blockDim.x) + threadIdx.x,2);
5 int i= __mul24(blockIdx.y,blockDim.y) + threadIdx.y;
6 int a0,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10,a11,a12,a13;//left window
7 int b6,b7,b8,b9,b10,b11,b12,b13 ; //right window
8 //first 14 common pixels
9 a0 = tex2D(tex_img_ins, j-1, i-2) ; // first line
10 a1 = tex2D(tex_img_ins, j , i-2) ;
11 a2 = tex2D(tex_img_ins, j+1, i-2) ;
12 a3 = tex2D(tex_img_ins, j+2, i-2) ;
13 a4 = tex2D(tex_img_ins, j-1, i-1) ; //seconde line
14 a5 = tex2D(tex_img_ins, j , i-1) ;
15 a6 = tex2D(tex_img_ins, j+1, i-1) ;
16 a7 = tex2D(tex_img_ins, j+2, i-1) ;
17 a8 = tex2D(tex_img_ins, j-1, i) ; // third line
18 a9 = tex2D(tex_img_ins, j , i) ;
19 a10 = tex2D(tex_img_ins, j+1, i) ;
20 a11 = tex2D(tex_img_ins, j+2, i) ; // first 2 of fourth line
21 a12 = tex2D(tex_img_ins, j-1, i+1) ;
22 a13 = tex2D(tex_img_ins, j , i+1) ;
25 minmax14(&a0,&a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
26 a13 = tex2D(tex_img_ins, j+1, i+1);
27 minmax13(&a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
28 a13 = tex2D(tex_img_ins, j+2, i+1);
29 minmax12(&a2,&a3,&a4,&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
30 a13 = tex2D(tex_img_ins, j-1, i+2);
31 minmax11(&a3,&a4,&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
32 a13 = tex2D(tex_img_ins, j , i+2);
33 minmax10(&a4,&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
34 a13 = tex2D(tex_img_ins, j+1, i+2);
35 minmax9(&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
36 a13 = tex2D(tex_img_ins, j+2, i+2);
37 minmax8(&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
40 b6=a6; b7=a7; b8=a8; b9=a9; b10=a10; b11=a11; b12=a12; b13=a13;
42 // separate selections: 5 remaining pixels in both windows
43 a13 = tex2D(tex_img_ins, j-2, i-2);
44 b13 = tex2D(tex_img_ins, j+3, i-2);
45 minmax7(&a7,&a8,&a9,&a10,&a11,&a12,&a13);
46 minmax7(&b7,&b8,&b9,&b10,&b11,&b12,&b13);
47 a13 = tex2D(tex_img_ins, j-2, i-1);
48 b13 = tex2D(tex_img_ins, j+3, i-1);
49 minmax6(&a8,&a9,&a10,&a11,&a12,&a13);
50 minmax6(&b8,&b9,&b10,&b11,&b12,&b13);
51 a13 = tex2D(tex_img_ins, j-2, i );
52 b13 = tex2D(tex_img_ins, j+3, i );
53 minmax5(&a9,&a10,&a11,&a12,&a13);
54 minmax5(&b9,&b10,&b11,&b12,&b13);
55 a13 = tex2D(tex_img_ins, j-2, i+1);
56 b13 = tex2D(tex_img_ins, j+3, i+1);
57 minmax4(&a10,&a11,&a12,&a13);
58 minmax4(&b10,&b11,&b12,&b13);
59 a13 = tex2D(tex_img_ins, j-2, i+2);
60 b13 = tex2D(tex_img_ins, j+3, i+2);
61 minmax3(&a11,&a12,&a13);
62 minmax3(&b11,&b12,&b13);
64 output[ __mul24(i, j_dim) +j ] = a12 ; //middle values
65 output[ __mul24(i, j_dim) +j+1 ] = b12 ;