Update freetype sources (2.6.2) in third party.

third_party/freetype2/src/src/truetype/ttsubpix.h

Index: third_party/freetype2/src/src/truetype/ttsubpix.h
diff --git a/third_party/freetype2/src/src/truetype/ttsubpix.h b/third_party/freetype2/src/src/truetype/ttsubpix.h
new file mode 100644
index 0000000000000000000000000000000000000000..9151aa3250c8a392176370f09850aa3e0a45bff6
--- /dev/null
+++ b/third_party/freetype2/src/src/truetype/ttsubpix.h
@@ -0,0 +1,110 @@
+/***************************************************************************/
+/*                                                                         */
+/*  ttsubpix.h                                                             */
+/*                                                                         */
+/*    TrueType Subpixel Hinting.                                           */
+/*                                                                         */
+/*  Copyright 2010-2015 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 __TTSUBPIX_H__
+#define __TTSUBPIX_H__
+
+#include <ft2build.h>
+#include "ttobjs.h"
+#include "ttinterp.h"
+
+
+FT_BEGIN_HEADER
+
+
+#ifdef TT_CONFIG_OPTION_SUBPIXEL_HINTING
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* ID flags to identify special functions at FDEF and runtime.           */
+  /*                                                                       */
+  /*                                                                       */
+#define SPH_FDEF_INLINE_DELTA_1       0x0000001
+#define SPH_FDEF_INLINE_DELTA_2       0x0000002
+#define SPH_FDEF_DIAGONAL_STROKE      0x0000004
+#define SPH_FDEF_VACUFORM_ROUND_1     0x0000008
+#define SPH_FDEF_TTFAUTOHINT_1        0x0000010
+#define SPH_FDEF_SPACING_1            0x0000020
+#define SPH_FDEF_SPACING_2            0x0000040
+#define SPH_FDEF_TYPEMAN_STROKES      0x0000080
+#define SPH_FDEF_TYPEMAN_DIAGENDCTRL  0x0000100
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* Tweak flags that are set for each glyph by the below rules.           */
+  /*                                                                       */
+  /*                                                                       */
+#define SPH_TWEAK_ALLOW_X_DMOVE                   0x0000001UL
+#define SPH_TWEAK_ALWAYS_DO_DELTAP                0x0000002UL
+#define SPH_TWEAK_ALWAYS_SKIP_DELTAP              0x0000004UL
+#define SPH_TWEAK_COURIER_NEW_2_HACK              0x0000008UL
+#define SPH_TWEAK_DEEMBOLDEN                      0x0000010UL
+#define SPH_TWEAK_DO_SHPIX                        0x0000020UL
+#define SPH_TWEAK_EMBOLDEN                        0x0000040UL
+#define SPH_TWEAK_MIAP_HACK                       0x0000080UL
+#define SPH_TWEAK_NORMAL_ROUND                    0x0000100UL
+#define SPH_TWEAK_NO_ALIGNRP_AFTER_IUP            0x0000200UL
+#define SPH_TWEAK_NO_CALL_AFTER_IUP               0x0000400UL
+#define SPH_TWEAK_NO_DELTAP_AFTER_IUP             0x0000800UL
+#define SPH_TWEAK_PIXEL_HINTING                   0x0001000UL
+#define SPH_TWEAK_RASTERIZER_35                   0x0002000UL
+#define SPH_TWEAK_ROUND_NONPIXEL_Y_MOVES          0x0004000UL
+#define SPH_TWEAK_SKIP_IUP                        0x0008000UL
+#define SPH_TWEAK_SKIP_NONPIXEL_Y_MOVES           0x0010000UL
+#define SPH_TWEAK_SKIP_OFFPIXEL_Y_MOVES           0x0020000UL
+#define SPH_TWEAK_TIMES_NEW_ROMAN_HACK            0x0040000UL
+#define SPH_TWEAK_SKIP_NONPIXEL_Y_MOVES_DELTAP    0x0080000UL
+
+
+  FT_LOCAL( FT_Bool )
+  sph_test_tweak( TT_Face               face,
+                  const FT_String*      family,
+                  FT_UInt               ppem,
+                  const FT_String*      style,
+                  FT_UInt               glyph_index,
+                  const SPH_TweakRule*  rule,
+                  FT_UInt               num_rules );
+
+  FT_LOCAL( FT_UInt )
+  sph_test_tweak_x_scaling( TT_Face           face,
+                            const FT_String*  family,
+                            FT_UInt           ppem,
+                            const FT_String*  style,
+                            FT_UInt           glyph_index );
+
+  FT_LOCAL( void )
+  sph_set_tweaks( TT_Loader  loader,
+                  FT_UInt    glyph_index );
+
+
+  /* These macros are defined absent a method for setting them */
+#define SPH_OPTION_BITMAP_WIDTHS           FALSE
+#define SPH_OPTION_SET_SUBPIXEL            TRUE
+#define SPH_OPTION_SET_GRAYSCALE           FALSE
+#define SPH_OPTION_SET_COMPATIBLE_WIDTHS   FALSE
+#define SPH_OPTION_SET_RASTERIZER_VERSION  38
+
+#endif /* TT_CONFIG_OPTION_SUBPIXEL_HINTING */
+
+
+FT_END_HEADER
+
+#endif /* __TTSUBPIX_H__ */
+
+/* END */