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[require]
GLSL >= 1.40
GL_ARB_shader_atomic_counters
GL_ARB_shader_atomic_counter_ops
SIZE 16 16
[vertex shader passthrough]
[fragment shader]
#version 140
#extension GL_ARB_shader_atomic_counters: require
#extension GL_ARB_shader_atomic_counter_ops: require
out vec4 color;
layout(binding = 0) uniform atomic_uint counter;
void main() {
atomicCounterAddARB(counter,
uint(gl_FragCoord.x) + 16u * uint(gl_FragCoord.y));
color = vec4(0, 1, 0, 1);
}
[test]
atomic counters 1
draw rect -1 -1 2 2
probe atomic counter 0 == 32640
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