Mesa (master): i965: init global state first in brw_workaround_depthstencil_alignment

[Jordan Justen]

Module: Mesa
Branch: master
Commit: 0e6be2e67b409d1542fd02e7c0f454676fc04587
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=0e6be2e67b409d1542fd02e7c0f454676fc04587

Author: Jordan Justen <jordan.l.justen at intel.com>
Date:   Tue Jul  9 14:25:11 2013 -0700

i965: init global state first in brw_workaround_depthstencil_alignment

In a future pass this will allow us to exit-early from this
routine to disable it for gen >= 7.

Signed-off-by: Jordan Justen <jordan.l.justen at intel.com>
Reviewed-by: Paul Berry <stereotype441 at gmail.com>

---

 src/mesa/drivers/dri/i965/brw_misc_state.c |   19 ++++++++++++++-----
 1 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_misc_state.c b/src/mesa/drivers/dri/i965/brw_misc_state.c
index 0ab1e76..1e31ad8 100644
--- a/src/mesa/drivers/dri/i965/brw_misc_state.c
+++ b/src/mesa/drivers/dri/i965/brw_misc_state.c
@@ -341,6 +341,20 @@ brw_workaround_depthstencil_alignment(struct brw_context *brw,
    if (depth_irb)
       depth_mt = depth_irb->mt;
 
+   /* Initialize brw->depthstencil to 'nop' workaround state.
+    */
+   brw->depthstencil.tile_x = 0;
+   brw->depthstencil.tile_y = 0;
+   brw->depthstencil.depth_offset = 0;
+   brw->depthstencil.stencil_offset = 0;
+   brw->depthstencil.hiz_offset = 0;
+   brw->depthstencil.depth_mt = NULL;
+   brw->depthstencil.stencil_mt = NULL;
+   if (depth_irb)
+      brw->depthstencil.depth_mt = depth_mt;
+   if (stencil_irb)
+      brw->depthstencil.stencil_mt = get_stencil_miptree(stencil_irb);
+
    /* Check if depth buffer is in depth/stencil format.  If so, then it's only
     * safe to invalidate it if we're also clearing stencil, and both depth_irb
     * and stencil_irb point to the same miptree.
@@ -515,11 +529,6 @@ brw_workaround_depthstencil_alignment(struct brw_context *brw,
     */
    brw->depthstencil.tile_x = tile_x;
    brw->depthstencil.tile_y = tile_y;
-   brw->depthstencil.depth_offset = 0;
-   brw->depthstencil.stencil_offset = 0;
-   brw->depthstencil.hiz_offset = 0;
-   brw->depthstencil.depth_mt = NULL;
-   brw->depthstencil.stencil_mt = NULL;
    if (depth_irb) {
       depth_mt = depth_irb->mt;
       brw->depthstencil.depth_mt = depth_mt;