1 files changed, 55 insertions, 7 deletions

diff --git a/third_party/freetype/src/cff/cf2ft.c b/third_party/freetype/src/cff/cf2ft.c
index d2544a2345..c0d067e94e 100644
--- a/third_party/freetype/src/cff/cf2ft.c
+++ b/third_party/freetype/src/cff/cf2ft.c
@@ -104,7 +104,8 @@
       FT_Memory  memory = font->memory;
 
 
-      (void)memory;
+      FT_FREE( font->blend.lastNDV );
+      FT_FREE( font->blend.BV );
     }
   }
 
@@ -239,7 +240,7 @@
                     FT_Memory    memory,
                     FT_Error*    error )
   {
-    FT_MEM_ZERO( outline, sizeof ( CF2_OutlineRec ) );
+    FT_ZERO( outline );
 
     outline->root.memory = memory;
     outline->root.error  = error;
@@ -311,7 +312,7 @@
     font = (CF2_Font)decoder->cff->cf2_instance.data;
 
     /* on first glyph, allocate instance structure */
-    if ( decoder->cff->cf2_instance.data == NULL )
+    if ( !decoder->cff->cf2_instance.data )
     {
       decoder->cff->cf2_instance.finalizer =
         (FT_Generic_Finalizer)cf2_free_instance;
@@ -366,6 +367,9 @@
                                &hinted,
                                &scaled );
 
+      /* copy isCFF2 boolean from TT_Face to CF2_Font */
+      font->isCFF2 = builder->face->isCFF2;
+
       font->renderingFlags = 0;
       if ( hinted )
         font->renderingFlags |= CF2_FlagsHinted;
@@ -413,6 +417,44 @@
   }
 
 
+  /* get pointer to VStore structure */
+  FT_LOCAL_DEF( CFF_VStore )
+  cf2_getVStore( CFF_Decoder*  decoder )
+  {
+    FT_ASSERT( decoder && decoder->cff );
+
+    return &decoder->cff->vstore;
+  }
+
+
+  /* get maxstack value from CFF2 Top DICT */
+  FT_LOCAL_DEF( FT_UInt )
+  cf2_getMaxstack( CFF_Decoder*  decoder )
+  {
+    FT_ASSERT( decoder && decoder->cff );
+
+    return decoder->cff->top_font.font_dict.maxstack;
+  }
+
+
+#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
+  /* Get normalized design vector for current render request; */
+  /* return pointer and length.                               */
+  /*                                                          */
+  /* Note: Uses FT_Fixed not CF2_Fixed for the vector.        */
+  FT_LOCAL_DEF( FT_Error )
+  cf2_getNormalizedVector( CFF_Decoder*  decoder,
+                           CF2_UInt     *len,
+                           FT_Fixed*    *vec )
+  {
+    FT_ASSERT( decoder && decoder->builder.face );
+    FT_ASSERT( vec && len );
+
+    return cff_get_var_blend( decoder->builder.face, len, vec, NULL );
+  }
+#endif
+
+
   /* get `y_ppem' from `CFF_Size' */
   FT_LOCAL_DEF( CF2_Fixed )
   cf2_getPpemY( CFF_Decoder*  decoder )
@@ -544,14 +586,17 @@
   /* return 0 on success                                   */
   FT_LOCAL_DEF( CF2_Int )
   cf2_initGlobalRegionBuffer( CFF_Decoder*  decoder,
-                              CF2_UInt      idx,
+                              CF2_Int       subrNum,
                               CF2_Buffer    buf )
   {
+    CF2_UInt  idx;
+
+
     FT_ASSERT( decoder );
 
     FT_ZERO( buf );
 
-    idx += (CF2_UInt)decoder->globals_bias;
+    idx = (CF2_UInt)( subrNum + decoder->globals_bias );
     if ( idx >= decoder->num_globals )
       return TRUE;     /* error */
 
@@ -628,14 +673,17 @@
 
   FT_LOCAL_DEF( CF2_Int )
   cf2_initLocalRegionBuffer( CFF_Decoder*  decoder,
-                             CF2_UInt      idx,
+                             CF2_Int       subrNum,
                              CF2_Buffer    buf )
   {
+    CF2_UInt  idx;
+
+
     FT_ASSERT( decoder );
 
     FT_ZERO( buf );
 
-    idx += (CF2_UInt)decoder->locals_bias;
+    idx = (CF2_UInt)( subrNum + decoder->locals_bias );
     if ( idx >= decoder->num_locals )
       return TRUE;     /* error */