Alternate CopyPixels path based on get/put_tile().

For some drivers (like Xlib) it's not possible to treat the front/back color
buffers as pipe_regions.  So pipe->region_copy() won't work.  Added a new
state tracker field indicating if we can use regions for colorbuffer accesses.
This should probably be re-considered someday...

1 files changed, 6 insertions, 0 deletions

diff --git a/src/mesa/state_tracker/st_context.h b/src/mesa/state_tracker/st_context.h
index b4ae041d36..bacc0b9b3f 100644
--- a/src/mesa/state_tracker/st_context.h
+++ b/src/mesa/state_tracker/st_context.h
@@ -111,6 +111,12 @@ struct st_context
    char vendor[100];
    char renderer[100];
 
+   /** Can we access the front/back color buffers as pipe_regions?
+    * We can't with the Xlib driver...
+    * This is a hack that should be fixed someday.
+    */
+   GLboolean haveFramebufferRegions;
+
    /* State to be validated:
     */
    struct st_tracked_state **atoms;