opencl/texturize-canvas.cl.h


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

static const char* texturize_canvas_cl_source =
"__kernel cl_texturize_canvas(__global const float * in,                       \n"
"                             __global float * out,                            \n"
"                             __global float * sdata,                          \n"
"                             const int x,                                     \n"
"                             const int y,                                     \n"
"                             const int xm,                                    \n"
"                             const int ym,                                    \n"
"                             const int offs,                                  \n"
"                             const float mult,                                \n"
"                             const int components,                            \n"
"                             const int has_alpha)                             \n"
"{                                                                             \n"
"    int col = get_global_id(0);                                               \n"
"    int row = get_global_id(1);                                               \n"
"    int step = components + has_alpha;                                        \n"
"    int index = step * (row * get_global_size(0) + col);                      \n"
"    int canvas_index = ((x + col) & 127) * xm +                               \n"
"                       ((y + row) & 127) * ym + offs;                         \n"
"    float color;                                                              \n"
"    int i;                                                                    \n"
"    float tmp = mult * sdata[canvas_index];                                   \n"
"    for(i=0; i<components; ++i)                                               \n"
"    {                                                                         \n"
"       color = tmp + src[index];                                              \n"
"       out[index++] = clamp(color,0.0f,1.0f);                                 \n"
"    }                                                                         \n"
"    if(has_alpha)                                                             \n"
"       out[index] = in[index];                                                \n"
"}                                                                             \n"
;