truetype: Extend TT_Face->num_locations for broken TTFs.

ChangeLog

@@ -1,3 +1,16 @@
+2009-07-03  suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
+
+	truetype: Extend TT_Face->num_locations for broken TTFs.
+
+	* include/freetype/internal/tttypes.h:
+	TT_Face->num_locations are extended from FT_UInt
+	to FT_ULong, to stand with broken huge loca table.
+	Some people insists there are broken TTF including
+	the glyphs over 16-bit limitation, in PRC market.
+	* src/truetype/ttpload.c (tt_face_load_loca):
+	Remove unrequired 16-bit truncation for FT_UInt
+	TT_Face->num_locations.
+
 2009-07-03  suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
 
 	smooth: Fix some data types mismatching with their sources.

include/freetype/internal/tttypes.h

@@ -1401,7 +1401,7 @@ FT_BEGIN_HEADER
     FT_Byte*              vert_metrics;
     FT_ULong              vert_metrics_size;
 
-    FT_UInt               num_locations;
+    FT_ULong              num_locations; /* in broken TTF, gid > 0xFFFF */ 
     FT_Byte*              glyph_locations;
 
     FT_Byte*              hdmx_table;

src/truetype/ttpload.c

@@ -95,7 +95,7 @@
         error = TT_Err_Invalid_Table;
         goto Exit;
       }
-      face->num_locations = (FT_UInt)( table_len >> shift );
+      face->num_locations = table_len >> shift;
     }
     else
     {
@@ -107,16 +107,16 @@
         error = TT_Err_Invalid_Table;
         goto Exit;
       }
-      face->num_locations = (FT_UInt)( table_len >> shift );
+      face->num_locations = table_len >> shift;
     }
 
-    if ( face->num_locations != (FT_UInt)face->root.num_glyphs )
+    if ( face->num_locations != (FT_ULong)face->root.num_glyphs )
     {
       FT_TRACE2(( "glyph count mismatch!  loca: %d, maxp: %d\n",
                   face->num_locations, face->root.num_glyphs ));
 
       /* we only handle the case where `maxp' gives a larger value */
-      if ( face->num_locations < (FT_UInt)face->root.num_glyphs )
+      if ( face->num_locations < (FT_ULong)face->root.num_glyphs )
       {
         FT_Long   new_loca_len = (FT_Long)face->root.num_glyphs << shift;
 
@@ -139,7 +139,7 @@
 
         if ( new_loca_len <= dist )
         {
-          face->num_locations = (FT_Long)face->root.num_glyphs;
+          face->num_locations = face->root.num_glyphs;
           table_len           = new_loca_len;
 
           FT_TRACE2(( "adjusting num_locations to %d\n",