* src/cff/cffobjs.c (cff_face_init): Set default upem value in top

ChangeLog

@@ -1,3 +1,14 @@
+2005-04-16  Werner Lemberg  <wl@gnu.org>
+
+	* src/cff/cffobjs.c (cff_face_init): Set default upem value in top
+	font dict also.
+	Handle font matrix settings in subfonts.
+
+	* src/cff/cffgload.c (cff_slot_load): Use the correct font matrix
+	for CID-keyed fonts with subfonts.
+
+	* docs/formats.txt: Updated.
+
 2005-04-14  Kirill Smelkov  <kirr@mns.spb.ru>
 
 	* include/freetype/freetype.h (FT_Vector_Transform),

docs/formats.txt

@@ -39,9 +39,9 @@ reference document and whether it is supported in FreeType 2.
 
 
 Please send additions and/or corrections to wl@gnu.org or to the
-FreeType developer's list at devel@freetype (for subscribers only).  If
-you can provide a font example for a format which isn't supported yet
-please send a mail too.
+FreeType developer's list at freetype-devel@nongnu.org (for subscribers
+only).  If you can provide a font example for a format which isn't
+supported yet please send a mail too.
 
 
 file wrapper font   font    glyph      FreeType reference
@@ -65,8 +65,8 @@ MAC  SFNT    PS     CFF     ---        cff      OT spec, 5176.CFF.pdf
 MAC  SFNT    PS     CFF     CID        cff      OT spec, 5176.CFF.pdf
 ---  SFNT    PS     CFF     SYNTHETIC  ---      OT spec, 5176.CFF.pdf
 MAC  SFNT    PS     CFF     SYNTHETIC  ---      OT spec, 5176.CFF.pdf
----  SFNT    TT     SBIT    ---        ---      XFree86? (bitmaps only;
-                                                `head' table)
+---  SFNT    TT     SBIT    ---        sfnt     XFree86 (bitmaps only;
+                                                with `head' table)
 ---  SFNT    TT     MACSBIT ---        sfnt     OT spec (for the Mac;
                                                 bitmaps only; `bhed' table)
 MAC  SFNT    TT     MACSBIT ---        sfnt     OT spec (for the Mac;

src/cff/cffgload.c

@@ -4,7 +4,7 @@
 /*                                                                         */
 /*    OpenType Glyph Loader (body).                                        */
 /*                                                                         */
-/*  Copyright 1996-2001, 2002, 2003, 2004 by                               */
+/*  Copyright 1996-2001, 2002, 2003, 2004, 2005 by                         */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -2466,8 +2466,19 @@
 
 #endif /* FT_CONFIG_OPTION_INCREMENTAL */
 
-    font_matrix = cff->top_font.font_dict.font_matrix;
-    font_offset = cff->top_font.font_dict.font_offset;
+    if ( cff->num_subfonts >= 1 )
+    {
+      FT_Byte  fd_index = cff_fd_select_get( &cff->fd_select, glyph_index );
+
+
+      font_matrix = cff->subfonts[fd_index]->font_dict.font_matrix;
+      font_offset = cff->subfonts[fd_index]->font_dict.font_offset;
+    }
+    else
+    {
+      font_matrix = cff->top_font.font_dict.font_matrix;
+      font_offset = cff->top_font.font_dict.font_offset;
+    }
 
     /* Now, set the metrics -- this is rather simple, as   */
     /* the left side bearing is the xMin, and the top side */

src/cff/cffobjs.c

@@ -478,6 +478,7 @@
       CFF_FontRecDict  dict;
       FT_Memory        memory = cffface->memory;
       FT_Int32         flags;
+      FT_UInt          i;
 
 
       if ( FT_NEW( cff ) )
@@ -535,10 +536,10 @@
         cffface->height    = (FT_Short)(
           ( ( cffface->ascender - cffface->descender ) * 12 ) / 10 );
 
-        if ( dict->units_per_em )
-          cffface->units_per_EM = dict->units_per_em;
-        else
-          cffface->units_per_EM = 1000;
+        if ( !dict->units_per_em )
+          dict->units_per_em = 1000;
+
+        cffface->units_per_EM = dict->units_per_em;
 
         cffface->underline_position  =
           (FT_Short)( dict->underline_position >> 16 );
@@ -685,6 +686,32 @@
         cffface->style_flags = flags;
       }
 
+      /* handle font matrix settings in subfonts (if any) */
+      for ( i = cff->num_subfonts; i > 0; i-- )
+      {
+        CFF_FontRecDict  sub = &cff->subfonts[i - 1]->font_dict;
+        CFF_FontRecDict  top = &cff->top_font.font_dict;
+
+
+        if ( sub->units_per_em )
+        {
+          FT_Matrix  scale;
+
+
+          scale.xx = scale.yy = (FT_Fixed)FT_DivFix( top->units_per_em,
+                                                     sub->units_per_em );
+          scale.xy = scale.yx = 0;
+
+          FT_Matrix_Multiply( &scale, &sub->font_matrix );
+          FT_Vector_Transform( &sub->font_offset, &scale );
+        }
+        else
+        {
+          sub->font_matrix = top->font_matrix;
+          sub->font_offset = top->font_offset;
+        }
+      }
+
 #ifndef FT_CONFIG_OPTION_NO_GLYPH_NAMES
       /* CID-keyed CFF fonts don't have glyph names -- the SFNT loader */
       /* has unset this flag because of the 3.0 `post' table           */