Mesa (master): i965: Make a helper function intel_miptree_set_total_width_height()

[Anuj Phogat]

Module: Mesa
Branch: master
Commit: 556b2fbd240bff5d20c5137827757e053c00c3a8
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=556b2fbd240bff5d20c5137827757e053c00c3a8

Author: Anuj Phogat <anuj.phogat at gmail.com>
Date:   Tue Apr 14 22:06:47 2015 -0700

i965: Make a helper function intel_miptree_set_total_width_height()

and some more code refactoring. No functional changes in this patch.

Signed-off-by: Anuj Phogat <anuj.phogat at gmail.com>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen at intel.com>

---

 src/mesa/drivers/dri/i965/brw_tex_layout.c |   93 +++++++++++++++-------------
 1 file changed, 50 insertions(+), 43 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_tex_layout.c b/src/mesa/drivers/dri/i965/brw_tex_layout.c
index 9a2a331..312a887 100644
--- a/src/mesa/drivers/dri/i965/brw_tex_layout.c
+++ b/src/mesa/drivers/dri/i965/brw_tex_layout.c
@@ -710,50 +710,10 @@ brw_miptree_choose_tiling(struct brw_context *brw,
    return I915_TILING_Y | I915_TILING_X;
 }
 
-
-void
-brw_miptree_layout(struct brw_context *brw,
-                   bool for_bo,
-                   enum intel_miptree_tiling_mode requested,
-                   struct intel_mipmap_tree *mt)
+static void
+intel_miptree_set_total_width_height(struct brw_context *brw,
+                                     struct intel_mipmap_tree *mt)
 {
-   bool gen6_hiz_or_stencil = false;
-
-   mt->tr_mode = INTEL_MIPTREE_TRMODE_NONE;
-
-   if (brw->gen == 6 && mt->array_layout == ALL_SLICES_AT_EACH_LOD) {
-      const GLenum base_format = _mesa_get_format_base_format(mt->format);
-      gen6_hiz_or_stencil = _mesa_is_depth_or_stencil_format(base_format);
-   }
-
-   if (gen6_hiz_or_stencil) {
-      /* On gen6, we use ALL_SLICES_AT_EACH_LOD for stencil/hiz because the
-       * hardware doesn't support multiple mip levels on stencil/hiz.
-       *
-       * PRM Vol 2, Part 1, 7.5.3 Hierarchical Depth Buffer:
-       * "The hierarchical depth buffer does not support the LOD field"
-       *
-       * PRM Vol 2, Part 1, 7.5.4.1 Separate Stencil Buffer:
-       * "The stencil depth buffer does not support the LOD field"
-       */
-      if (mt->format == MESA_FORMAT_S_UINT8) {
-         /* Stencil uses W tiling, so we force W tiling alignment for the
-          * ALL_SLICES_AT_EACH_LOD miptree layout.
-          */
-         mt->align_w = 64;
-         mt->align_h = 64;
-      } else {
-         /* Depth uses Y tiling, so we force need Y tiling alignment for the
-          * ALL_SLICES_AT_EACH_LOD miptree layout.
-          */
-         mt->align_w = 128 / mt->cpp;
-         mt->align_h = 32;
-      }
-   } else {
-      mt->align_w = intel_horizontal_texture_alignment_unit(brw, mt);
-      mt->align_h = intel_vertical_texture_alignment_unit(brw, mt);
-   }
-
    switch (mt->target) {
    case GL_TEXTURE_CUBE_MAP:
       if (brw->gen == 4) {
@@ -796,8 +756,55 @@ brw_miptree_layout(struct brw_context *brw,
       }
       break;
    }
+
    DBG("%s: %dx%dx%d\n", __func__,
        mt->total_width, mt->total_height, mt->cpp);
+}
+
+void
+brw_miptree_layout(struct brw_context *brw,
+                   bool for_bo,
+                   enum intel_miptree_tiling_mode requested,
+                   struct intel_mipmap_tree *mt)
+{
+   bool gen6_hiz_or_stencil = false;
+
+   mt->tr_mode = INTEL_MIPTREE_TRMODE_NONE;
+
+   if (brw->gen == 6 && mt->array_layout == ALL_SLICES_AT_EACH_LOD) {
+      const GLenum base_format = _mesa_get_format_base_format(mt->format);
+      gen6_hiz_or_stencil = _mesa_is_depth_or_stencil_format(base_format);
+   }
+
+   if (gen6_hiz_or_stencil) {
+      /* On gen6, we use ALL_SLICES_AT_EACH_LOD for stencil/hiz because the
+       * hardware doesn't support multiple mip levels on stencil/hiz.
+       *
+       * PRM Vol 2, Part 1, 7.5.3 Hierarchical Depth Buffer:
+       * "The hierarchical depth buffer does not support the LOD field"
+       *
+       * PRM Vol 2, Part 1, 7.5.4.1 Separate Stencil Buffer:
+       * "The stencil depth buffer does not support the LOD field"
+       */
+      if (mt->format == MESA_FORMAT_S_UINT8) {
+         /* Stencil uses W tiling, so we force W tiling alignment for the
+          * ALL_SLICES_AT_EACH_LOD miptree layout.
+          */
+         mt->align_w = 64;
+         mt->align_h = 64;
+      } else {
+         /* Depth uses Y tiling, so we force need Y tiling alignment for the
+          * ALL_SLICES_AT_EACH_LOD miptree layout.
+          */
+         mt->align_w = 128 / mt->cpp;
+         mt->align_h = 32;
+      }
+   } else {
+      mt->align_w = intel_horizontal_texture_alignment_unit(brw, mt);
+      mt->align_h = intel_vertical_texture_alignment_unit(brw, mt);
+   }
+
+   intel_miptree_set_total_width_height(brw, mt);
 
    if (!mt->total_width || !mt->total_height) {
       intel_miptree_release(&mt);