1#version 450
 2
 3#include "generic_head.glsl"
 4#include "types.glsl"
 5
 6#extension GL_EXT_control_flow_attributes : enable
 7
 8layout(local_size_x = 512, local_size_y = 1, local_size_z = 1) in;
 9
10layout (binding = 0) readonly buffer X {A_TYPE data_a[];};
11layout (binding = 1) writeonly buffer D {D_TYPE data_d[];};
12
13void main() {
14    const uint i = gl_GlobalInvocationID.z * 262144 + gl_GlobalInvocationID.y * 512 + gl_GlobalInvocationID.x;
15
16    if (i >= p.KX) {
17        return;
18    }
19
20    float x = float(data_a[i]);
21
22    float alpha_n = p.param1;
23    float alpha_p = p.param2;
24    float beta = p.param3;
25    float eps = p.param4;
26
27    if (x > 0.0f) {
28        x = alpha_p * x * x + beta * x;
29    } else {
30        const float min_x_eps = min(x, eps);
31        x = (exp(min_x_eps) - 1 - x) * alpha_n + beta * x;
32    }
33
34    data_d[i] = D_TYPE(x);
35}