From 564df9dc5f6335eb8dc68f3c69cf054d2142663c Mon Sep 17 00:00:00 2001
From: Brian Paul <brianp@vmware.com>
Date: Tue, 29 Sep 2009 08:50:56 -0600
Subject: [PATCH] softpipe: initialize the clear_flags bitvector in
 sp_create_tile_cache()

This silences tons of valgrind warnings in programs that don't call
glClear(), such as progs/demos/gamma.
---
 src/gallium/drivers/softpipe/sp_tile_cache.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/gallium/drivers/softpipe/sp_tile_cache.c b/src/gallium/drivers/softpipe/sp_tile_cache.c
index 461cbb9f953..5f7864e6714 100644
--- a/src/gallium/drivers/softpipe/sp_tile_cache.c
+++ b/src/gallium/drivers/softpipe/sp_tile_cache.c
@@ -130,6 +130,11 @@ sp_create_tile_cache( struct pipe_screen *screen )
          tc->entries[pos].x =
          tc->entries[pos].y = -1;
       }
+
+#if TILE_CLEAR_OPTIMIZATION
+      /* set flags to indicate all the tiles are cleared */
+      memset(tc->clear_flags, 255, sizeof(tc->clear_flags));
+#endif
    }
    return tc;
 }