This extension is only exposed if the underlying driver supports
ARB_compute_shader.
Signed-off-by: Samuel Pitoiset <samuel.pitoi...@gmail.com>
---
src/mesa/state_tracker/st_extensions.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/src/mesa/state_tracker/st_extensions.c
b/src/mesa/state_tracker/st_extensions.c
index 807fbfb..dc2e60a 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -1196,6 +1196,19 @@ void st_init_extensions(struct pipe_screen *screen,
extensions->ARB_compute_shader =
extensions->ARB_shader_image_load_store
&&
extensions->ARB_shader_atomic_counters;
+
+ if (extensions->ARB_compute_shader) {
+ /* Because the minimum values required by
+ * ARB_compute_variable_group_size are less (or equal) than the
+ * ones defined by ARB_compute_shader we can re-use them. */
+ for (i = 0; i < 3; i++) {
+ consts->MaxComputeVariableGroupSize[i] =
+ consts->MaxComputeWorkGroupSize[i];
+ }
+ consts->MaxComputeVariableGroupInvocations =
+ consts->MaxComputeWorkGroupInvocations;
+ extensions->ARB_compute_variable_group_size = true;
+ }
}
}
--
2.9.3
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