Merge to XFA: Update bundled freetype to 2.6.1

third_party/freetype/include/ftttdrv.h

Index: third_party/freetype/include/ftttdrv.h
diff --git a/third_party/freetype/include/ftttdrv.h b/third_party/freetype/include/ftttdrv.h
deleted file mode 100644
index 358841397cac9ab20bfe6c75c67795b496bb46ae..0000000000000000000000000000000000000000
--- a/third_party/freetype/include/ftttdrv.h
+++ /dev/null
@@ -1,170 +0,0 @@
-/***************************************************************************/
-/*                                                                         */
-/*  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, representing 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.
-   *
-   *   Depending on the graphics framework, Microsoft uses different
-   *   bytecode engines.  As a consequence, the version numbers returned by
-   *   a call to the `GETINFO[1]' bytecode instruction are more convoluted
-   *   than desired.
-   *
-   *   {
-   *      framework   Windows version   result of GETINFO[1]
-   *     ----------------------------------------------------
-   *       GDI         before XP         35
-   *       GDI         XP and later      37
-   *       GDI+ old    before Vista      37
-   *       GDI+ old    Vista, 7          38
-   *       GDI+        after 7           40
-   *       DWrite      before 8          39
-   *       DWrite      8 and later       40
-   *   }
-   *
-   *   Since FreeType doesn't provide all capabilities of DWrite ClearType,
-   *   using version~38 seems justified.
-   *
-   */
-#define TT_INTERPRETER_VERSION_35  35
-#define TT_INTERPRETER_VERSION_38  38
-
- /* */
-
-
-FT_END_HEADER
-
-
-#endif /* __FTTTDRV_H__ */
-
-
-/* END */