i965: Stop passing num_samples to intel_miptree_alloc_hiz().

[mesa.git] / src / mesa / drivers / dri / intel / intel_mipmap_tree.h

diff --git a/src/mesa/drivers/dri/intel/intel_mipmap_tree.h b/src/mesa/drivers/dri/intel/intel_mipmap_tree.h
index 3bdda07edceae4b873c0f97462d60a89215b93eb..b7376e03055f22c0d5baa7f0a71cbd3a77ba6569 100644 (file)
--- a/src/mesa/drivers/dri/intel/intel_mipmap_tree.h
+++ b/src/mesa/drivers/dri/intel/intel_mipmap_tree.h
@@ -152,6 +152,15 @@ struct intel_mipmap_level
        * intel_miptree_map/unmap on this slice.
        */
       struct intel_miptree_map *map;
+
+      /**
+       * \brief Is HiZ enabled for this slice?
+       *
+       * If \c mt->level[l].slice[s].has_hiz is set, then (1) \c mt->hiz_mt
+       * has been allocated and (2) the HiZ memory corresponding to this slice
+       * resides at \c mt->hiz_mt->level[l].slice[s].
+       */
+      bool has_hiz;
    } *slice;
 };
 
@@ -333,9 +342,11 @@ struct intel_mipmap_tree
    /**
     * \brief HiZ miptree
     *
-    * This is non-null only if HiZ is enabled for this miptree.
+    * The hiz miptree contains the miptree's hiz buffer. To allocate the hiz
+    * miptree, use intel_miptree_alloc_hiz().
     *
-    * \see intel_miptree_alloc_hiz()
+    * To determine if hiz is enabled, do not check this pointer. Instead, use
+    * intel_miptree_slice_has_hiz().
     */
    struct intel_mipmap_tree *hiz_mt;
 
@@ -529,8 +540,12 @@ intel_miptree_alloc_mcs(struct intel_context *intel,
 
 bool
 intel_miptree_alloc_hiz(struct intel_context *intel,
-                       struct intel_mipmap_tree *mt,
-                        GLuint num_samples);
+                       struct intel_mipmap_tree *mt);
+
+bool
+intel_miptree_slice_has_hiz(struct intel_mipmap_tree *mt,
+                            uint32_t level,
+                            uint32_t layer);
 
 void
 intel_miptree_slice_set_needs_hiz_resolve(struct intel_mipmap_tree *mt,