i965: Push intel_get_texture_alignment_unit call into brw_miptree_layout

intel_miptree_create_layout() calls intel_get_texture_alignment_unit()
and then immediately calls brw_miptree_layout().  There are no other
callers.

intel_get_texture_alignment_unit() populates the miptree's alignment
unit fields, which are used by brw_miptree_layout() to determine where
to place each miplevel.  Since brw_miptree_layout() needs those to be
present, it makes sense to have it initialize them as the first step.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Chad Versace <chad.versace@linux.intel.com>

src/mesa/drivers/dri/i965/brw_tex_layout.c

@@ -212,6 +212,9 @@ brw_miptree_layout_texture_3d(struct intel_context *intel,
 void
 brw_miptree_layout(struct intel_context *intel, struct intel_mipmap_tree *mt)
 {
+   intel_get_texture_alignment_unit(intel, mt->format,
+                                    &mt->align_w, &mt->align_h);
+
    switch (mt->target) {
    case GL_TEXTURE_CUBE_MAP:
       if (intel->gen == 4) {

src/mesa/drivers/dri/i965/intel_mipmap_tree.c

@@ -400,9 +400,6 @@ intel_miptree_create_layout(struct intel_context *intel,
       }
    }
 
-   intel_get_texture_alignment_unit(intel, mt->format,
-				    &mt->align_w, &mt->align_h);
-
    brw_miptree_layout(intel, mt);
 
    return mt;