Update freetype sources (2.6.2) in third party.

third_party/freetype2/src/src/cff/cffgload.h

Index: third_party/freetype2/src/src/cff/cffgload.h
diff --git a/third_party/freetype2/src/src/cff/cffgload.h b/third_party/freetype2/src/src/cff/cffgload.h
new file mode 100644
index 0000000000000000000000000000000000000000..5f2655f3d98424667f100975204f4595f2e447bb
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+++ b/third_party/freetype2/src/src/cff/cffgload.h
@@ -0,0 +1,245 @@
+/***************************************************************************/
+/*                                                                         */
+/*  cffgload.h                                                             */
+/*                                                                         */
+/*    OpenType Glyph Loader (specification).                               */
+/*                                                                         */
+/*  Copyright 1996-2015 by                                                 */
+/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
+/*                                                                         */
+/*  This file is part of the FreeType project, and may only be used,       */
+/*  modified, and distributed under the terms of the FreeType project      */
+/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
+/*  this file you indicate that you have read the license and              */
+/*  understand and accept it fully.                                        */
+/*                                                                         */
+/***************************************************************************/
+
+
+#ifndef __CFFGLOAD_H__
+#define __CFFGLOAD_H__
+
+
+#include <ft2build.h>
+#include FT_FREETYPE_H
+#include "cffobjs.h"
+
+
+FT_BEGIN_HEADER
+
+
+#define CFF_MAX_OPERANDS        48
+#define CFF_MAX_SUBRS_CALLS     16  /* maximum subroutine nesting;         */
+                                    /* only 10 are allowed but there exist */
+                                    /* fonts like `HiraKakuProN-W3.ttf'    */
+                                    /* (Hiragino Kaku Gothic ProN W3;      */
+                                    /* 8.2d6e1; 2014-12-19) that exceed    */
+                                    /* this limit                          */
+#define CFF_MAX_TRANS_ELEMENTS  32
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* <Structure>                                                           */
+  /*    CFF_Builder                                                        */
+  /*                                                                       */
+  /* <Description>                                                         */
+  /*     A structure used during glyph loading to store its outline.       */
+  /*                                                                       */
+  /* <Fields>                                                              */
+  /*    memory        :: The current memory object.                        */
+  /*                                                                       */
+  /*    face          :: The current face object.                          */
+  /*                                                                       */
+  /*    glyph         :: The current glyph slot.                           */
+  /*                                                                       */
+  /*    loader        :: The current glyph loader.                         */
+  /*                                                                       */
+  /*    base          :: The base glyph outline.                           */
+  /*                                                                       */
+  /*    current       :: The current glyph outline.                        */
+  /*                                                                       */
+  /*    pos_x         :: The horizontal translation (if composite glyph).  */
+  /*                                                                       */
+  /*    pos_y         :: The vertical translation (if composite glyph).    */
+  /*                                                                       */
+  /*    left_bearing  :: The left side bearing point.                      */
+  /*                                                                       */
+  /*    advance       :: The horizontal advance vector.                    */
+  /*                                                                       */
+  /*    bbox          :: Unused.                                           */
+  /*                                                                       */
+  /*    path_begun    :: A flag which indicates that a new path has begun. */
+  /*                                                                       */
+  /*    load_points   :: If this flag is not set, no points are loaded.    */
+  /*                                                                       */
+  /*    no_recurse    :: Set but not used.                                 */
+  /*                                                                       */
+  /*    metrics_only  :: A boolean indicating that we only want to compute */
+  /*                     the metrics of a given glyph, not load all of its */
+  /*                     points.                                           */
+  /*                                                                       */
+  /*    hints_funcs   :: Auxiliary pointer for hinting.                    */
+  /*                                                                       */
+  /*    hints_globals :: Auxiliary pointer for hinting.                    */
+  /*                                                                       */
+  typedef struct  CFF_Builder_
+  {
+    FT_Memory       memory;
+    TT_Face         face;
+    CFF_GlyphSlot   glyph;
+    FT_GlyphLoader  loader;
+    FT_Outline*     base;
+    FT_Outline*     current;
+
+    FT_Pos          pos_x;
+    FT_Pos          pos_y;
+
+    FT_Vector       left_bearing;
+    FT_Vector       advance;
+
+    FT_BBox         bbox;          /* bounding box */
+    FT_Bool         path_begun;
+    FT_Bool         load_points;
+    FT_Bool         no_recurse;
+
+    FT_Bool         metrics_only;
+
+    void*           hints_funcs;    /* hinter-specific */
+    void*           hints_globals;  /* hinter-specific */
+
+  } CFF_Builder;
+
+
+  FT_LOCAL( FT_Error )
+  cff_check_points( CFF_Builder*  builder,
+                    FT_Int        count );
+
+  FT_LOCAL( void )
+  cff_builder_add_point( CFF_Builder*  builder,
+                         FT_Pos        x,
+                         FT_Pos        y,
+                         FT_Byte       flag );
+  FT_LOCAL( FT_Error )
+  cff_builder_add_point1( CFF_Builder*  builder,
+                          FT_Pos        x,
+                          FT_Pos        y );
+  FT_LOCAL( FT_Error )
+  cff_builder_start_point( CFF_Builder*  builder,
+                           FT_Pos        x,
+                           FT_Pos        y );
+  FT_LOCAL( void )
+  cff_builder_close_contour( CFF_Builder*  builder );
+
+
+  FT_LOCAL( FT_Int )
+  cff_lookup_glyph_by_stdcharcode( CFF_Font  cff,
+                                   FT_Int    charcode );
+  FT_LOCAL( FT_Error )
+  cff_get_glyph_data( TT_Face    face,
+                      FT_UInt    glyph_index,
+                      FT_Byte**  pointer,
+                      FT_ULong*  length );
+  FT_LOCAL( void )
+  cff_free_glyph_data( TT_Face    face,
+                       FT_Byte**  pointer,
+                       FT_ULong   length );
+
+
+  /* execution context charstring zone */
+
+  typedef struct  CFF_Decoder_Zone_
+  {
+    FT_Byte*  base;
+    FT_Byte*  limit;
+    FT_Byte*  cursor;
+
+  } CFF_Decoder_Zone;
+
+
+  typedef struct  CFF_Decoder_
+  {
+    CFF_Builder        builder;
+    CFF_Font           cff;
+
+    FT_Fixed           stack[CFF_MAX_OPERANDS + 1];
+    FT_Fixed*          top;
+
+    CFF_Decoder_Zone   zones[CFF_MAX_SUBRS_CALLS + 1];
+    CFF_Decoder_Zone*  zone;
+
+    FT_Int             flex_state;
+    FT_Int             num_flex_vectors;
+    FT_Vector          flex_vectors[7];
+
+    FT_Pos             glyph_width;
+    FT_Pos             nominal_width;
+
+    FT_Bool            read_width;
+    FT_Bool            width_only;
+    FT_Int             num_hints;
+    FT_Fixed           buildchar[CFF_MAX_TRANS_ELEMENTS];
+
+    FT_UInt            num_locals;
+    FT_UInt            num_globals;
+
+    FT_Int             locals_bias;
+    FT_Int             globals_bias;
+
+    FT_Byte**          locals;
+    FT_Byte**          globals;
+
+    FT_Byte**          glyph_names;   /* for pure CFF fonts only  */
+    FT_UInt            num_glyphs;    /* number of glyphs in font */
+
+    FT_Render_Mode     hint_mode;
+
+    FT_Bool            seac;
+
+    CFF_SubFont        current_subfont; /* for current glyph_index */
+
+  } CFF_Decoder;
+
+
+  FT_LOCAL( void )
+  cff_decoder_init( CFF_Decoder*    decoder,
+                    TT_Face         face,
+                    CFF_Size        size,
+                    CFF_GlyphSlot   slot,
+                    FT_Bool         hinting,
+                    FT_Render_Mode  hint_mode );
+
+  FT_LOCAL( FT_Error )
+  cff_decoder_prepare( CFF_Decoder*  decoder,
+                       CFF_Size      size,
+                       FT_UInt       glyph_index );
+
+#if 0  /* unused until we support pure CFF fonts */
+
+  /* Compute the maximum advance width of a font through quick parsing */
+  FT_LOCAL( FT_Error )
+  cff_compute_max_advance( TT_Face  face,
+                           FT_Int*  max_advance );
+
+#endif /* 0 */
+
+#ifdef CFF_CONFIG_OPTION_OLD_ENGINE
+  FT_LOCAL( FT_Error )
+  cff_decoder_parse_charstrings( CFF_Decoder*  decoder,
+                                 FT_Byte*      charstring_base,
+                                 FT_ULong      charstring_len );
+#endif
+
+  FT_LOCAL( FT_Error )
+  cff_slot_load( CFF_GlyphSlot  glyph,
+                 CFF_Size       size,
+                 FT_UInt        glyph_index,
+                 FT_Int32       load_flags );
+
+
+FT_END_HEADER
+
+#endif /* __CFFGLOAD_H__ */
+
+
+/* END */