1#version 450
 2
 3#extension GL_EXT_shader_16bit_storage : require
 4#extension GL_EXT_control_flow_attributes : enable
 5
 6layout (push_constant) uniform parameter
 7{
 8    uint ncols;
 9    uint rows_per_channel;
10    uint n_past;
11} p;
12
13#include "types.glsl"
14
15layout(local_size_x = 1, local_size_y = 512, local_size_z = 1) in;
16
17layout (binding = 0) readonly buffer X {A_TYPE data_a[];};
18layout (binding = 1) writeonly buffer D {D_TYPE data_d[];};
19
20void main() {
21    const uint col = gl_GlobalInvocationID.y;
22    const uint row = gl_GlobalInvocationID.x;
23
24    if (col >= p.ncols) {
25        return;
26    }
27
28    const uint i = row*p.ncols + col;
29    if (col > p.n_past + row % p.rows_per_channel) {
30        data_d[i] = D_TYPE(uintBitsToFloat(0xFF800000));
31    } else {
32        data_d[i] = D_TYPE(data_a[i]);
33    }
34}