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__kernel void
runtime_mirror_effect(__read_only image2d_t src_y,
__read_only image2d_t src_uv,
__write_only image2d_t dst_y,
__write_only image2d_t dst_uv,
int src_height)
{
const sampler_t sampler = CLK_NORMALIZED_COORDS_FALSE | CLK_FILTER_NEAREST;
int2 loc = (int2)(get_global_id(0), get_global_id(1));
uint4 color_y, color_uv;
if (loc.y < src_height/2) {
color_y = read_imageui(src_y, sampler, loc);
color_uv = read_imageui(src_uv, sampler, loc/2);
} else {
int2 newloc = (int2)(loc.x, src_height - loc.y);
color_y = read_imageui(src_y, sampler, newloc);
color_uv = read_imageui(src_uv, sampler, newloc/2);
}
write_imageui(dst_y, loc, color_y);
write_imageui(dst_uv, loc/2, color_uv);
}
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