[otvalid] Handle `BASE' v1.1 table.

No validation of variation stuff yet.

* src/otvalid/otvbase.c (otv_BASE_validate): Implement it.

ChangeLog

@@ -1,3 +1,11 @@
+2017-09-22  Werner Lemberg  <wl@gnu.org>
+
+	[otvalid] Handle `BASE' v1.1 table.
+
+	No validation of variation stuff yet.
+
+	* src/otvalid/otvbase.c (otv_BASE_validate): Implement it.
+
 2017-09-22  Werner Lemberg  <wl@gnu.org>
 
 	[otvalid] Macros for 32bit offset support.

src/otvalid/otvbase.c

@@ -284,22 +284,41 @@
     OTV_Validator     otvalid = &otvalidrec;
     FT_Bytes          p       = table;
     FT_UInt           table_size;
+    FT_UShort         version;
 
     OTV_OPTIONAL_TABLE( HorizAxis );
     OTV_OPTIONAL_TABLE( VertAxis  );
 
+    OTV_OPTIONAL_TABLE32( itemVarStore );
+
 
     otvalid->root = ftvalid;
 
     FT_TRACE3(( "validating BASE table\n" ));
     OTV_INIT;
 
-    OTV_LIMIT_CHECK( 6 );
+    OTV_LIMIT_CHECK( 4 );
 
-    if ( FT_NEXT_ULONG( p ) != 0x10000UL )      /* Version */
+    if ( FT_NEXT_USHORT( p ) != 1 )  /* majorVersion */
       FT_INVALID_FORMAT;
 
-    table_size = 6;
+    version = FT_NEXT_USHORT( p );   /* minorVersion */
+
+    table_size = 8;
+    switch ( version )
+    {
+    case 0:
+      OTV_LIMIT_CHECK( 4 );
+      break;
+
+    case 1:
+      OTV_LIMIT_CHECK( 8 );
+      table_size += 4;
+      break;
+
+    default:
+      FT_INVALID_FORMAT;
+    }
 
     OTV_OPTIONAL_OFFSET( HorizAxis );
     OTV_SIZE_CHECK( HorizAxis );
@@ -311,6 +330,14 @@
     if ( VertAxis )
       otv_Axis_validate( table + VertAxis, otvalid );
 
+    if ( version > 0 )
+    {
+      OTV_OPTIONAL_OFFSET32( itemVarStore );
+      OTV_SIZE_CHECK32( itemVarStore );
+      if ( itemVarStore )
+        OTV_TRACE(( "  [omitting itemVarStore validation]\n" )); /* XXX */
+    }
+
     FT_TRACE4(( "\n" ));
   }