DO NOT MERGE Update FreeType library to 2.4.7

Copied common files from upstream repository only.

changes to ftoption.h which were intentionally NOT taken:

  /* contain no glyph data, but supply it via a callback function.         */
   /* This is required by clients supporting document formats which         */
   /* supply font data incrementally as the document is parsed, such        */
   /* as the Ghostscript interpreter for the PostScript language.           */
   /*                                                                       */
-/* #define FT_CONFIG_OPTION_INCREMENTAL */
+#define FT_CONFIG_OPTION_INCREMENTAL

   /*************************************************************************/
   /*                                                                       */
   /* The size in bytes of the render pool used by the scan-line converter  */
@@ -553,11 +553,11 @@ FT_BEGIN_HEADER
   /* TrueType glyphs without hinting.                                      */
   /*                                                                       */
   /*   Do not #undef this macro here, since the build system might         */
   /*   define it for certain configurations only.                          */
   /*                                                                       */
-/* #define TT_CONFIG_OPTION_BYTECODE_INTERPRETER */
+#define TT_CONFIG_OPTION_BYTECODE_INTERPRETER

   /*************************************************************************/
   /*                                                                       */
   /* If you define TT_CONFIG_OPTION_UNPATENTED_HINTING, a special version  */
@@ -603,11 +603,11 @@ FT_BEGIN_HEADER
   /*                                                                       */
   /*     error = FT_Open_Face( library, &open_args, index, &face );        */
   /*     ...                                                               */
   /*   }                                                                   */
   /*                                                                       */
-#define TT_CONFIG_OPTION_UNPATENTED_HINTING
+/* #define TT_CONFIG_OPTION_UNPATENTED_HINTING */

   /*************************************************************************/
   /*                                                                       */
   /* Define TT_CONFIG_OPTION_INTERPRETER_SWITCH to compile the TrueType    */

Manual changes to ftmodule.h:

+/*
+ * New modules in 2.4.7:
+FT_USE_MODULE( FT_Driver_ClassRec, t1_driver_class )
+FT_USE_MODULE( FT_Driver_ClassRec, t1cid_driver_class )
+FT_USE_MODULE( FT_Driver_ClassRec, pfr_driver_class )
+FT_USE_MODULE( FT_Driver_ClassRec, t42_driver_class )
+FT_USE_MODULE( FT_Driver_ClassRec, winfnt_driver_class )
+FT_USE_MODULE( FT_Driver_ClassRec, pcf_driver_class )
+FT_USE_MODULE( FT_Module_Class, psaux_module_class )
+FT_USE_MODULE( FT_Driver_ClassRec, bdf_driver_class )
+ */
+

These lines were added for 2.4.7 but we decided to stick with our current use.

Change-Id: Ic1b52909580c78ead44cf4f882be06f2837539db

1 files changed, 41 insertions, 27 deletions

diff --git a/src/cff/cffobjs.c b/src/cff/cffobjs.c
index cd38676..15707a2 100644
--- a/src/cff/cffobjs.c
+++ b/src/cff/cffobjs.c
@@ -607,7 +607,25 @@
         goto Bad_Format;
       }
 
-      if ( !dict->units_per_em )
+#ifdef FT_DEBUG_LEVEL_TRACE
+      {
+        FT_UInt     idx;
+        FT_String*  s;
+
+
+        FT_TRACE4(( "SIDs\n" ));
+
+        /* dump string index, including default strings for convenience */
+        for ( idx = 0; idx < cff->num_strings + 390; idx++ )
+        {
+          s = cff_index_get_sid_string( cff, idx );
+          if ( s )
+            FT_TRACE4(("  %5d %s\n", idx, s ));
+        }
+      }
+#endif /* FT_DEBUG_LEVEL_TRACE */
+
+      if ( !dict->has_font_matrix )
         dict->units_per_em = pure_cff ? 1000 : face->root.units_per_EM;
 
       /* Normalize the font matrix so that `matrix->xx' is 1; the */
@@ -652,26 +670,32 @@
         FT_Fixed    temp;
 
 
-        if ( sub->units_per_em )
+        if ( sub->has_font_matrix )
         {
           FT_Long  scaling;
 
 
-          if ( top->units_per_em > 1 && sub->units_per_em > 1 )
-            scaling = FT_MIN( top->units_per_em, sub->units_per_em );
-          else
-            scaling = 1;
-
-          FT_Matrix_Multiply_Scaled( &top->font_matrix,
-                                     &sub->font_matrix,
-                                     scaling );
-          FT_Vector_Transform_Scaled( &sub->font_offset,
-                                      &top->font_matrix,
-                                      scaling );
-
-          sub->units_per_em = FT_MulDiv( sub->units_per_em,
-                                         top->units_per_em,
-                                         scaling );
+          /* if we have a top-level matrix, */
+          /* concatenate the subfont matrix */
+
+          if ( top->has_font_matrix )
+          {
+            if ( top->units_per_em > 1 && sub->units_per_em > 1 )
+              scaling = FT_MIN( top->units_per_em, sub->units_per_em );
+            else
+              scaling = 1;
+
+            FT_Matrix_Multiply_Scaled( &top->font_matrix,
+                                       &sub->font_matrix,
+                                       scaling );
+            FT_Vector_Transform_Scaled( &sub->font_offset,
+                                        &top->font_matrix,
+                                        scaling );
+
+            sub->units_per_em = FT_MulDiv( sub->units_per_em,
+                                           top->units_per_em,
+                                           scaling );
+          }
         }
         else
         {
@@ -690,16 +714,6 @@
         {
           *upm = FT_DivFix( *upm, temp );
 
-          /* if *upm is larger than 100*1000 we divide by 1000 --     */
-          /* this can happen if e.g. there is no top-font FontMatrix  */
-          /* and the subfont FontMatrix already contains the complete */
-          /* scaling for the subfont (see section 5.11 of the PLRM)   */
-
-          /* 100 is a heuristic value */
-
-          if ( *upm > 100L * 1000L )
-            *upm = ( *upm + 500 ) / 1000;
-
           matrix->xx = FT_DivFix( matrix->xx, temp );
           matrix->yx = FT_DivFix( matrix->yx, temp );
           matrix->xy = FT_DivFix( matrix->xy, temp );