SPIRV-Cross/samples/cpp/atomics.comp
2016-05-30 21:31:29 +02:00

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#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;
}
}