On 04/27/2017 05:24 PM, Ilia Mirkin wrote:
From ARB_compute_shader:
Dependencies on OpenGL 4.3 and ARB_shader_storage_buffer_object
If OpenGL 4.3 and ARB_shader_storage_buffer_object are not supported, the
spec language adding the built-in functions atomicAdd(), atomicMin(),
atomicMax(), atomicAnd(), atomicOr(), atomicXor(), atomicExchange(), and
atomicCompSwap() should be considered to be incorporated into this
extension as-is, except that buffer variables will not be supported and
thus cannot be used with these functions. No "#extension" directive is
necessary to use these functions in compute shaders.
Ah, I missed that point. Corner case :)
On Thu, Apr 27, 2017 at 11:19 AM, Samuel Pitoiset
<[email protected]> wrote:
atomic*() functions require either GLSL 4.30 or
GL_ARB_shader_storage_buffer_object.
Signed-off-by: Samuel Pitoiset <[email protected]>
---
tests/spec/arb_compute_shader/compiler/shared-atomics.comp | 1 +
1 file changed, 1 insertion(+)
diff --git a/tests/spec/arb_compute_shader/compiler/shared-atomics.comp
b/tests/spec/arb_compute_shader/compiler/shared-atomics.comp
index 3835bee03..a4f4a6855 100644
--- a/tests/spec/arb_compute_shader/compiler/shared-atomics.comp
+++ b/tests/spec/arb_compute_shader/compiler/shared-atomics.comp
@@ -6,6 +6,7 @@
#version 420
#extension GL_ARB_compute_shader: enable
+#extension GL_ARB_shader_storage_buffer_object : enable
shared uint u;
shared int i;
--
2.12.2
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