intel: Add 'mode' param to intel_region_map

The 'mode' param is a bitset of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT.

A future commit will perform buffer resolves in intel_region_map().  So,
even though the access mode is irrelevant to the GTT, the extra
information allows us to intelligently avoid unneccessary buffer resolves.

Signed-off-by: Chad Versace <[email protected]>

1 files changed, 6 insertions, 2 deletions

diff --git a/src/mesa/drivers/dri/intel/intel_regions.h b/src/mesa/drivers/dri/intel/intel_regions.h
index 78309d2a90b..06e76acde29 100644
--- a/src/mesa/drivers/dri/intel/intel_regions.h
+++ b/src/mesa/drivers/dri/intel/intel_regions.h
@@ -95,10 +95,14 @@ void intel_region_release(struct intel_region **ib);
 
 void intel_recreate_static_regions(struct intel_context *intel);
 
-/* Map/unmap regions.  This is refcounted also: 
+/**
+ * Map/unmap regions.  This is refcounted also:
+ *
+ * \param mode  bitmask of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT
  */
 GLubyte *intel_region_map(struct intel_context *intel,
-                          struct intel_region *ib);
+                          struct intel_region *ib,
+                          GLbitfield mode);
 
 void intel_region_unmap(struct intel_context *intel, struct intel_region *ib);