Update freetype to latest version of ASOP.

include/freetype/ftttdrv.h

Index: include/freetype/ftttdrv.h
diff --git a/include/freetype/ftttdrv.h b/include/freetype/ftttdrv.h
new file mode 100644
index 0000000000000000000000000000000000000000..d5d3f1ccc183ab83437d4c01d5268b8404bb1e48
--- /dev/null
+++ b/include/freetype/ftttdrv.h
@@ -0,0 +1,150 @@
+/***************************************************************************/
+/*                                                                         */
+/*  ftttdrv.h                                                              */
+/*                                                                         */
+/*    FreeType API for controlling the TrueType driver                     */
+/*    (specification only).                                                */
+/*                                                                         */
+/*  Copyright 2013 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 __FTTTDRV_H__
+#define __FTTTDRV_H__
+
+#include <ft2build.h>
+#include FT_FREETYPE_H
+
+#ifdef FREETYPE_H
+#error "freetype.h of FreeType 1 has been loaded!"
+#error "Please fix the directory search order for header files"
+#error "so that freetype.h of FreeType 2 is found first."
+#endif
+
+
+FT_BEGIN_HEADER
+
+
+  /**************************************************************************
+   *
+   * @section:
+   *   tt_driver
+   *
+   * @title:
+   *   The TrueType driver
+   *
+   * @abstract:
+   *   Controlling the TrueType driver module.
+   *
+   * @description:
+   *   While FreeType's TrueType driver doesn't expose API functions by
+   *   itself, it is possible to control its behaviour with @FT_Property_Set
+   *   and @FT_Property_Get.  The following lists the available properties
+   *   together with the necessary macros and structures.
+   *
+   *   The TrueType driver's module name is `truetype'.
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @property:
+   *   interpreter-version
+   *
+   * @description:
+   *   Currently, two versions are available which represent the bytecode
+   *   interpreter with and without subpixel hinting support,
+   *   respectively.  The default is subpixel support if
+   *   TT_CONFIG_OPTION_SUBPIXEL_HINTING is defined, and no subpixel
+   *   support otherwise (since it isn't available then).
+   *
+   *   If subpixel hinting is on, many TrueType bytecode instructions
+   *   behave differently compared to B/W or grayscale rendering.  The
+   *   main idea is to render at a much increased horizontal resolution,
+   *   then sampling down the created output to subpixel precision.
+   *   However, many older fonts are not suited to this and must be
+   *   specially taken care of by applying (hardcoded) font-specific
+   *   tweaks.
+   *
+   *   Details on subpixel hinting and some of the necessary tweaks can be
+   *   found in Greg Hitchcock's whitepaper at
+   *   `http://www.microsoft.com/typography/cleartype/truetypecleartype.aspx'.
+   *
+   *   The following example code demonstrates how to activate subpixel
+   *   hinting (omitting the error handling).
+   *
+   *   {
+   *     FT_Library  library;
+   *     FT_Face     face;
+   *     FT_UInt     interpreter_version = TT_INTERPRETER_VERSION_38;
+   *
+   *
+   *     FT_Init_FreeType( &library );
+   *
+   *     FT_Property_Set( library, "truetype",
+   *                               "interpreter-version",
+   *                               &interpreter_version );
+   *   }
+   *
+   * @note:
+   *   This property can be used with @FT_Property_Get also.
+   *
+   */
+
+
+  /**************************************************************************
+   *
+   * @enum:
+   *   TT_INTERPRETER_VERSION_XXX
+   *
+   * @description:
+   *   A list of constants used for the @interpreter-version property to
+   *   select the hinting engine for Truetype fonts.
+   *
+   *   The numeric value in the constant names represents the version
+   *   number as returned by the `GETINFO' bytecode instruction.
+   *
+   * @values:
+   *   TT_INTERPRETER_VERSION_35 ::
+   *     Version~35 corresponds to MS rasterizer v.1.7 as used e.g. in
+   *     Windows~98; only grayscale and B/W rasterizing is supported.
+   *
+   *   TT_INTERPRETER_VERSION_38 ::
+   *     Version~38 corresponds to MS rasterizer v.1.9; it is roughly
+   *     equivalent to the hinting provided by DirectWrite ClearType (as
+   *     can be found, for example, in the Internet Explorer~9 running on
+   *     Windows~7).
+   *
+   * @note:
+   *   This property controls the behaviour of the bytecode interpreter
+   *   and thus how outlines get hinted.  It does *not* control how glyph
+   *   get rasterized!  In particular, it does not control subpixel color
+   *   filtering.
+   *
+   *   If FreeType has not been compiled with configuration option
+   *   FT_CONFIG_OPTION_SUBPIXEL_HINTING, selecting version~38 causes an
+   *   `FT_Err_Unimplemented_Feature' error.
+   *
+   */
+#define TT_INTERPRETER_VERSION_35  35
+#define TT_INTERPRETER_VERSION_38  38
+
+
+ /* */
+
+FT_END_HEADER
+
+
+#endif /* __FTTTDRV_H__ */
+
+
+/* END */