#version 450

#include "generic_head.glsl"
#include "types.glsl"

#extension GL_EXT_control_flow_attributes : enable

layout(local_size_x = 512, local_size_y = 1, local_size_z = 1) in;

layout (binding = 0) readonly buffer X {A_TYPE data_a[];};
layout (binding = 1) writeonly buffer D {D_TYPE data_d[];};

void main() {
    const uint i = gl_GlobalInvocationID.z * 262144 + gl_GlobalInvocationID.y * 512 + gl_GlobalInvocationID.x;

    if (i >= p.KX) {
        return;
    }

    const float x = float(data_a[i]);
    float result;
    // Round halfway cases away from zero as roundf does.
    if (x >= 0.0) {
        result = floor(x + 0.5);
    } else {
        result = ceil(x - 0.5);
    }
    data_d[i] = D_TYPE(result);
}
