intel: Remove intel_mipmap_tree::wraps_etc

The field was equivalent to (etc_format != MESA_FORMAT_NONE), and
therefore duplicate information.

This patch removes field and replaces all references to it with
`etc_format != MESA_FORMAT_NONE`.

No Piglit ETC test regresses on Intel Sandybridge.

Reviewed-by: Kenneth Graunke <[email protected]>
Reviewed-by: Anuj Phogat <[email protected]>
Signed-off-by: Chad Versace <[email protected]>

2 files changed, 3 insertions, 21 deletions

diff --git a/src/mesa/drivers/dri/intel/intel_mipmap_tree.c b/src/mesa/drivers/dri/intel/intel_mipmap_tree.c
index 306cbbea177..e15050112ed 100644
--- a/src/mesa/drivers/dri/intel/intel_mipmap_tree.c
+++ b/src/mesa/drivers/dri/intel/intel_mipmap_tree.c
@@ -390,7 +390,6 @@ intel_miptree_create(struct intel_context *intel,
       total_height = ALIGN(total_height, 64);
    }
 
-   mt->wraps_etc = (etc_format != MESA_FORMAT_NONE) ? true : false;
    mt->etc_format = etc_format;
    mt->region = intel_region_alloc(intel->intelScreen,
 				   tiling,
@@ -1309,10 +1308,7 @@ intel_miptree_map_etc(struct intel_context *intel,
                       unsigned int level,
                       unsigned int slice)
 {
-   /* For justification see intel_mipmap_tree:wraps_etc.
-    */
-   assert(mt->wraps_etc);
-
+   assert(mt->etc_format != MESA_FORMAT_NONE);
    if (mt->etc_format == MESA_FORMAT_ETC1_RGB8) {
       assert(mt->format == MESA_FORMAT_RGBX8888_REV);
    }
@@ -1575,7 +1571,7 @@ intel_miptree_map_singlesample(struct intel_context *intel,
 
    if (mt->format == MESA_FORMAT_S8) {
       intel_miptree_map_s8(intel, mt, map, level, slice);
-   } else if (mt->wraps_etc) {
+   } else if (mt->etc_format != MESA_FORMAT_NONE) {
       intel_miptree_map_etc(intel, mt, map, level, slice);
    } else if (mt->stencil_mt) {
       intel_miptree_map_depthstencil(intel, mt, map, level, slice);
@@ -1633,7 +1629,7 @@ intel_miptree_unmap_singlesample(struct intel_context *intel,
 
    if (mt->format == MESA_FORMAT_S8) {
       intel_miptree_unmap_s8(intel, mt, map, level, slice);
-   } else if (mt->wraps_etc) {
+   } else if (mt->etc_format != MESA_FORMAT_NONE) {
       intel_miptree_unmap_etc(intel, mt, map, level, slice);
    } else if (mt->stencil_mt) {
       intel_miptree_unmap_depthstencil(intel, mt, map, level, slice);
diff --git a/src/mesa/drivers/dri/intel/intel_mipmap_tree.h b/src/mesa/drivers/dri/intel/intel_mipmap_tree.h
index 27540bc182f..2070be7680a 100644
--- a/src/mesa/drivers/dri/intel/intel_mipmap_tree.h
+++ b/src/mesa/drivers/dri/intel/intel_mipmap_tree.h
@@ -360,20 +360,6 @@ struct intel_mipmap_tree
     */
    struct intel_mipmap_tree *mcs_mt;
 
-   /**
-    * \brief The miptree contains uncompressed data that was originally
-    * ETC1/ETC2 data.
-    *
-    * On hardware that lacks support for ETC1/ETC2 textures, we do the following
-    * on calls to glCompressedTexImage2D() with an ETC1/ETC2 texture format:
-    *   1. Create a miptree whose format is a suitable uncompressed mesa format
-    *      with the wraps_etc flag set.
-    *   2. Translate the ETC1/ETC2 data into uncompressed mesa format.
-    *   3. Store the uncompressed  data into the miptree and discard the ETC1/ETC2
-    *      data.
-    */
-   bool wraps_etc;
-
    /* These are also refcounted:
     */
    GLuint refcount;