[dri2] Add tail pointer to reemitDrawableInfo callback.

When the DRI doesn't parse the event buffer for a while, the X server
may overwrite data that the driver didn't get a chance to look at.  The
reemitDrawableInfo callback requests that the X server reemit all info
for the specified drawable.  To make use of this, the drive needs to know
the new tail pointer so it know where to start reading from.

1 files changed, 2 insertions, 1 deletions

diff --git a/include/GL/internal/dri_interface.h b/include/GL/internal/dri_interface.h
index 175ff2d3aff..a815c28dbc9 100644
--- a/include/GL/internal/dri_interface.h
+++ b/include/GL/internal/dri_interface.h
@@ -424,8 +424,9 @@ struct __DRIcoreDRI2ExtensionRec {
      * specified drawable in the DRI2 event buffer.
      *
      * \param draw the drawable for which to request info
+     * \param tail the new event buffer tail pointer
      */
-    void (*reemitDrawableInfo)(__DRIdrawable *draw);
+    void (*reemitDrawableInfo)(__DRIdrawable *draw, unsigned int *tail);
 
 };