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-rw-r--r--src/mesa/main/extensions.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/mesa/main/extensions.h b/src/mesa/main/extensions.h
index 59761bfcdb4..159610b6e12 100644
--- a/src/mesa/main/extensions.h
+++ b/src/mesa/main/extensions.h
@@ -106,6 +106,15 @@ _mesa_has_##name_str(const struct gl_context *ctx) \
#include "extensions_table.h"
#undef EXT
+/* Sometimes the driver wants to query the extension override status before
+ * a context is created. These variables are filled with extension override
+ * information before context creation.
+ *
+ * This can be useful during extension bring-up when an extension is
+ * partially implemented, but cannot yet be advertised as supported.
+ *
+ * Use it with care and keep access read-only.
+ */
extern struct gl_extensions _mesa_extension_override_enables;
extern struct gl_extensions _mesa_extension_override_disables;