[Mesa-dev] [PATCH 07/27] i965/gen6: Simplify hiz surface setup

[Topi Pohjolainen]

In intel_hiz_miptree_buf_create() intel_miptree_aux_buffer::bo
is unconditionally initialised to point to the same buffer
object as hiz_mt does. The same goes for
intel_miptree_aux_buffer::pitch/qpitch.

This will make following patches simpler to read.

Signed-off-by: Topi Pohjolainen <topi.pohjolainen at intel.com>
---
 src/mesa/drivers/dri/i965/brw_misc_state.c    | 5 ++---
 src/mesa/drivers/dri/i965/gen6_depth_state.c  | 4 ++--
 src/mesa/drivers/dri/i965/intel_mipmap_tree.c | 9 ++-------
 3 files changed, 6 insertions(+), 12 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_misc_state.c b/src/mesa/drivers/dri/i965/brw_misc_state.c
index 616c0df..af050a0 100644
--- a/src/mesa/drivers/dri/i965/brw_misc_state.c
+++ b/src/mesa/drivers/dri/i965/brw_misc_state.c
@@ -631,11 +631,10 @@ brw_emit_depth_stencil_hiz(struct brw_context *brw,
       /* Emit hiz buffer. */
       if (hiz) {
          assert(depth_mt);
-         struct intel_mipmap_tree *hiz_mt = depth_mt->hiz_buf->mt;
 	 BEGIN_BATCH(3);
 	 OUT_BATCH((_3DSTATE_HIER_DEPTH_BUFFER << 16) | (3 - 2));
-	 OUT_BATCH(hiz_mt->pitch - 1);
-	 OUT_RELOC(hiz_mt->bo,
+	 OUT_BATCH(depth_mt->hiz_buf->aux_base.pitch - 1);
+	 OUT_RELOC(depth_mt->hiz_buf->aux_base.bo,
 		   I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER,
 		   brw->depthstencil.hiz_offset);
 	 ADVANCE_BATCH();
diff --git a/src/mesa/drivers/dri/i965/gen6_depth_state.c b/src/mesa/drivers/dri/i965/gen6_depth_state.c
index cb0ed25..0ff2407 100644
--- a/src/mesa/drivers/dri/i965/gen6_depth_state.c
+++ b/src/mesa/drivers/dri/i965/gen6_depth_state.c
@@ -173,8 +173,8 @@ gen6_emit_depth_stencil_hiz(struct brw_context *brw,
 
 	 BEGIN_BATCH(3);
 	 OUT_BATCH((_3DSTATE_HIER_DEPTH_BUFFER << 16) | (3 - 2));
-	 OUT_BATCH(hiz_mt->pitch - 1);
-	 OUT_RELOC(hiz_mt->bo,
+	 OUT_BATCH(depth_mt->hiz_buf->aux_base.pitch - 1);
+	 OUT_RELOC(depth_mt->hiz_buf->aux_base.bo,
 		   I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER,
 		   offset);
 	 ADVANCE_BATCH();
diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
index 9488bec..606d4c2 100644
--- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
+++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
@@ -3423,13 +3423,8 @@ intel_miptree_get_aux_isl_surf(struct brw_context *brw,
          unreachable("Invalid MCS miptree");
       }
    } else if (mt->hiz_buf) {
-      if (mt->hiz_buf->mt) {
-         aux_pitch = mt->hiz_buf->mt->pitch;
-         aux_qpitch = mt->hiz_buf->mt->qpitch;
-      } else {
-         aux_pitch = mt->hiz_buf->aux_base.pitch;
-         aux_qpitch = mt->hiz_buf->aux_base.qpitch;
-      }
+      aux_pitch = mt->hiz_buf->aux_base.pitch;
+      aux_qpitch = mt->hiz_buf->aux_base.qpitch;
 
       *usage = ISL_AUX_USAGE_HIZ;
    } else {
-- 
2.5.5