42 lines
1.1 KiB
Plaintext
42 lines
1.1 KiB
Plaintext
#version 450
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#extension GL_KHR_shader_subgroup_basic : require
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#extension GL_KHR_shader_subgroup_shuffle : require
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#extension GL_KHR_shader_subgroup_shuffle_relative : require
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#extension GL_KHR_shader_subgroup_quad : require
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layout(local_size_x = 1) in;
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layout(std430, binding = 0) buffer SSBO
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{
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float FragColor;
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};
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// Reduced test for functionality exposed on iOS.
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void main()
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{
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// basic
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FragColor = float(gl_NumSubgroups);
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FragColor = float(gl_SubgroupID);
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FragColor = float(gl_SubgroupSize);
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FragColor = float(gl_SubgroupInvocationID);
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subgroupBarrier();
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subgroupMemoryBarrier();
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subgroupMemoryBarrierBuffer();
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subgroupMemoryBarrierShared();
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subgroupMemoryBarrierImage();
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// shuffle
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uint shuffled = subgroupShuffle(10u, 8u);
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uint shuffled_xor = subgroupShuffleXor(30u, 8u);
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// shuffle relative
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uint shuffled_up = subgroupShuffleUp(20u, 4u);
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uint shuffled_down = subgroupShuffleDown(20u, 4u);
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// quad
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vec4 swap_horiz = subgroupQuadSwapHorizontal(vec4(20.0));
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vec4 swap_vertical = subgroupQuadSwapVertical(vec4(20.0));
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vec4 swap_diagonal = subgroupQuadSwapDiagonal(vec4(20.0));
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vec4 quad_broadcast = subgroupQuadBroadcast(vec4(20.0), 3u);
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}
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