#version 450

layout(local_size_x = 1, local_size_y = 1) in;

layout(binding = 0) uniform atomic_uint counter;

layout(binding = 0, offset = 4) uniform atomic_uint countArr[4];
shared uint value;

int arrX[gl_WorkGroupSize.x];
int arrY[gl_WorkGroupSize.y];
int arrZ[gl_WorkGroupSize.z];

uint func(atomic_uint c)
{
    return atomicCounterIncrement(c);
}

void main()
{
    memoryBarrierAtomicCounter();
    func(counter);
    uint val = atomicCounter(countArr[2]);
    atomicCounterDecrement(counter);
    atomicCounterIncrement(counter);
}
