Mesa (master): i965/gen6 depth surface: calculate minimum array element being rendered

[Jordan Justen]

Module: Mesa
Branch: master
Commit: 039eb81abf4fab94e787ddd4d5ca4133f7af9c1c
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=039eb81abf4fab94e787ddd4d5ca4133f7af9c1c

Author: Jordan Justen <jordan.l.justen at intel.com>
Date:   Tue Jul  9 15:24:56 2013 -0700

i965/gen6 depth surface: calculate minimum array element being rendered

(a23cfb8 for gen6)

In layered rendering this will be 0. Otherwise it will be the
selected slice.

Signed-off-by: Jordan Justen <jordan.l.justen at intel.com>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen at intel.com>
Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>

---

 src/mesa/drivers/dri/i965/gen6_blorp.cpp     |    2 ++
 src/mesa/drivers/dri/i965/gen6_depth_state.c |    2 ++
 2 files changed, 4 insertions(+)

diff --git a/src/mesa/drivers/dri/i965/gen6_blorp.cpp b/src/mesa/drivers/dri/i965/gen6_blorp.cpp
index 96825c6..23e3aa2 100644
--- a/src/mesa/drivers/dri/i965/gen6_blorp.cpp
+++ b/src/mesa/drivers/dri/i965/gen6_blorp.cpp
@@ -807,6 +807,8 @@ gen6_blorp_emit_depth_stencil_config(struct brw_context *brw,
                                    NULL,
                                    &tile_mask_x, &tile_mask_y);
 
+   const unsigned min_array_element = params->depth.layer;
+
    lod = params->depth.level - params->depth.mt->first_level;
 
    /* 3DSTATE_DEPTH_BUFFER */
diff --git a/src/mesa/drivers/dri/i965/gen6_depth_state.c b/src/mesa/drivers/dri/i965/gen6_depth_state.c
index 9e03577..ec910f2 100644
--- a/src/mesa/drivers/dri/i965/gen6_depth_state.c
+++ b/src/mesa/drivers/dri/i965/gen6_depth_state.c
@@ -98,6 +98,8 @@ gen6_emit_depth_stencil_hiz(struct brw_context *brw,
       break;
    }
 
+   const unsigned min_array_element = irb ? irb->mt_layer : 0;
+
    lod = irb ? irb->mt_level - irb->mt->first_level : 0;
 
    BEGIN_BATCH(7);