feature/android 67da02444ee: Update Android port

[Po Lu]

branch: feature/android
commit 67da02444ee4ad0950bfe3b5ad531822e6818ff5
Author: Po Lu <luangruo@yahoo.com>
Commit: Po Lu <luangruo@yahoo.com>

    Update Android port
    
    * src/sfntfont.c (sfntfont_open): Avoid specifying redundant
    blends.
---
 src/sfntfont.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/src/sfntfont.c b/src/sfntfont.c
index 3476da6734e..40272247116 100644
--- a/src/sfntfont.c
+++ b/src/sfntfont.c
@@ -3068,6 +3068,22 @@ sfntfont_open (struct frame *f, Lisp_Object font_entity,
 
          sfnt_normalize_blend (&font_info->blend);
 
+         /* Test whether or not the instance is actually redundant,
+            as all of its axis are at their default values.  If so,
+            free the instance.  */
+
+         for (i = 0; i < desc->tables->fvar->axis_count; ++i)
+           {
+             if (font_info->blend.norm_coords[i])
+               break;
+           }
+
+         if (i == desc->tables->fvar->axis_count)
+           {
+             sfnt_free_blend (&font_info->blend);
+             goto cancel_blend;
+           }
+
          /* If an interpreter was specified, distort it now.  */
 
          if (font_info->interpreter)
@@ -3089,6 +3105,7 @@ sfntfont_open (struct frame *f, Lisp_Object font_entity,
        }
     }
 
+ cancel_blend:
   /* Calculate the xfld name.  */
   font->props[FONT_NAME_INDEX] = Ffont_xlfd_name (font_object, Qnil);