RetroArch/deps/SPIRV-Cross/samples/cpp/atomics.comp

// Copyright 2016-2021 The Khronos Group Inc.
// SPDX-License-Identifier: Apache-2.0

#version 310 es
layout(local_size_x = 64) in;

layout(set = 0, binding = 0, std430) readonly buffer SSBO0
{
	float inputs[];
};

layout(set = 0, binding = 1, std430) writeonly buffer SSBO1
{
	float outputs[];
};

layout(set = 0, binding = 2, std430) buffer SSBO2
{
	uint counter;
};

void main()
{
	// Builds a tightly packed list of all values less than 10.0.
	// The output order is random.
	float value = inputs[gl_GlobalInvocationID.x];
	if (value < 10.0)
	{
		uint output_index = atomicAdd(counter, 1u);
		outputs[output_index] = value;
	}
}