1 /* 2 * function: kernel_wire_frame 3 * 4 * output_y: Y channel image2d_t as write only 5 * output_uv: uv channel image2d_t as write only 6 * wire_frames_coords: coordinates of wire frames 7 * coords_num: number of coordinates to be processed 8 */ 9 10 __kernel void kernel_wire_frame ( 11 __write_only image2d_t output_y, __write_only image2d_t output_uv, 12 __global uint2 *wire_frames_coords, uint coords_num, 13 float border_y, float border_u, float border_v) 14 { 15 if (coords_num == 0) { 16 return; 17 } 18 19 int gid = get_global_id (0); 20 if (gid >= coords_num) { 21 return; 22 } 23 24 uint2 coord = wire_frames_coords [gid]; 25 26 write_imagef (output_y, (int2)(coord.x / 2, coord.y), (float4)(border_y)); 27 if (coord.y % 2 == 0) { 28 write_imagef (output_uv, (int2)(coord.x / 2, coord.y / 2), (float4)(border_u, border_v, 0.0f, 0.0f)); 29 } 30 } 31
