[Mesa-dev] [PATCH 1/2] i965: Make INTEL_DEBUG=mip print out whether HiZ is enabled.

[Kenneth Graunke]

We only enable HiZ for miplevels which are aligned on 8x4 blocks.  When
debugging HiZ failures, it's useful to know whether a particular
miplevel is using HiZ or not.

Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
---
 src/mesa/drivers/dri/i965/intel_mipmap_tree.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
index a0e637a..4c71e41 100644
--- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
+++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
@@ -1370,10 +1370,12 @@ intel_miptree_level_enable_hiz(struct brw_context *brw,
        * force the proper size alignments.
        */
       if (level > 0 && ((width & 7) || (height & 3))) {
+         DBG("mt %p level %d: HiZ DISABLED\n", mt, level);
          return false;
       }
    }
 
+   DBG("mt %p level %d: HiZ enabled\n", mt, level);
    mt->level[level].has_hiz = true;
    return true;
 }
-- 
1.9.1