i965: Cope with batch getting flushed in the middle of batchbuffer emits.

This isn't required for GEM (at least, yet), but the check_aperture code
for non-GEM results in batch getting flushed during emit.  brw_state_upload
restarts state emits, but a bunch of the state emit functions were assuming
that they would be called exactly once, after prepare and before new_batch.

Bug #17179.

1 files changed, 5 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_context.h b/src/mesa/drivers/dri/i965/brw_context.h
index 5f180fd65f..b04487ecee 100644
--- a/src/mesa/drivers/dri/i965/brw_context.h
+++ b/src/mesa/drivers/dri/i965/brw_context.h
@@ -557,6 +557,11 @@ struct brw_context
 
       GLfloat *last_buf;
       GLuint last_bufsz;
+      /**
+       *  Whether we should create a new bo instead of reusing the old one
+       * (if we just dispatch the batch pointing at the old one.
+       */
+      GLboolean need_new_bo;
    } curbe;
 
    struct {