i965: Add missing _NEW_BUFFERS dirty bit in Gen7 SBE state.

This is needed to compute render_to_fbo.  It even has the comment.

NOTE: This is a candidate for stable branches.

Reviewed-by: Eric Anholt <eric@anholt.net>
(cherry picked from commit bd87441ac028068f422e2c96b39f93644a0f246f)

diff --git a/src/mesa/drivers/dri/i965/gen7_sf_state.c b/src/mesa/drivers/dri/i965/gen7_sf_state.c
index 28c6508..8b33514 100644 (file)
--- a/src/mesa/drivers/dri/i965/gen7_sf_state.c
+++ b/src/mesa/drivers/dri/i965/gen7_sf_state.c
@@ -142,7 +142,8 @@ upload_sbe_state(struct brw_context *brw)
 
 const struct brw_tracked_state gen7_sbe_state = {
    .dirty = {
-      .mesa  = (_NEW_LIGHT |
+      .mesa  = (_NEW_BUFFERS |
+               _NEW_LIGHT |
                _NEW_POINT |
                _NEW_PROGRAM),
       .brw   = (BRW_NEW_CONTEXT |