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📄 freetype.h(234.96 KB)
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📄 ftbdf.h(6.59 KB)
📄 ftbitmap.h(13.67 KB)
📄 ftcache.h(58.84 KB)
📄 ftchapters.h(7.09 KB)
📄 ftcid.h(5.45 KB)
📄 fterrdef.h(11.56 KB)
📄 fterrors.h(9.23 KB)
📄 ftgasp.h(3.94 KB)
📄 ftglyph.h(38.35 KB)
📄 ftgxval.h(12.3 KB)
📄 ftgzip.h(4.19 KB)
📄 ftimage.h(78.48 KB)
📄 ftincrem.h(10.99 KB)
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📄 ftmm.h(22.18 KB)
📄 ftmodapi.h(23.33 KB)
📄 ftmoderr.h(7.26 KB)
📄 ftotval.h(6.97 KB)
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📄 ftrender.h(11.14 KB)
📄 ftsizes.h(9.34 KB)
📄 ftsnames.h(9.86 KB)
📄 ftstroke.h(19.09 KB)
📄 ftsynth.h(3.81 KB)
📄 ftsystem.h(9.9 KB)
📄 fttrigon.h(8.25 KB)
📄 fttypes.h(34.16 KB)
📄 ftwinfnt.h(10.16 KB)
📄 ftxf86.h(4.61 KB)
📄 t1tables.h(19.58 KB)
📄 ttnameid.h(60.71 KB)
📄 tttables.h(38.57 KB)
📄 tttags.h(4.88 KB)
📄 ttunpat.h(2.18 KB)

Editing: ftgasp.h

/***************************************************************************/
/*                                                                         */
/*  ftgasp.h                                                               */
/*                                                                         */
/*    Access of TrueType's `gasp' table (specification).                   */
/*                                                                         */
/*  Copyright 2007, 2008 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 _FT_GASP_H_
#define _FT_GASP_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

/***************************************************************************
   *
   * @section:
   *   gasp_table
   *
   * @title:
   *   Gasp Table
   *
   * @abstract:
   *   Retrieving TrueType `gasp' table entries.
   *
   * @description:
   *   The function @FT_Get_Gasp can be used to query a TrueType or OpenType
   *   font for specific entries in its `gasp' table, if any.  This is
   *   mainly useful when implementing native TrueType hinting with the
   *   bytecode interpreter to duplicate the Windows text rendering results.
   */

/*************************************************************************
   *
   * @enum:
   *   FT_GASP_XXX
   *
   * @description:
   *   A list of values and/or bit-flags returned by the @FT_Get_Gasp
   *   function.
   *
   * @values:
   *   FT_GASP_NO_TABLE ::
   *     This special value means that there is no GASP table in this face.
   *     It is up to the client to decide what to do.
   *
   *   FT_GASP_DO_GRIDFIT ::
   *     Grid-fitting and hinting should be performed at the specified ppem.
   *     This *really* means TrueType bytecode interpretation.
   *
   *   FT_GASP_DO_GRAY ::
   *     Anti-aliased rendering should be performed at the specified ppem.
   *
   *   FT_GASP_SYMMETRIC_SMOOTHING ::
   *     Smoothing along multiple axes must be used with ClearType.
   *
   *   FT_GASP_SYMMETRIC_GRIDFIT ::
   *     Grid-fitting must be used with ClearType's symmetric smoothing.
   *
   * @note:
   *   `ClearType' is Microsoft's implementation of LCD rendering, partly
   *   protected by patents.
   *
   * @since:
   *   2.3.0
   */
#define FT_GASP_NO_TABLE               -1
#define FT_GASP_DO_GRIDFIT           0x01
#define FT_GASP_DO_GRAY              0x02
#define FT_GASP_SYMMETRIC_SMOOTHING  0x08
#define FT_GASP_SYMMETRIC_GRIDFIT    0x10

/*************************************************************************
   *
   * @func:
   *   FT_Get_Gasp
   *
   * @description:
   *   Read the `gasp' table from a TrueType or OpenType font file and
   *   return the entry corresponding to a given character pixel size.
   *
   * @input:
   *   face :: The source face handle.
   *   ppem :: The vertical character pixel size.
   *
   * @return:
   *   Bit flags (see @FT_GASP_XXX), or @FT_GASP_NO_TABLE if there is no
   *   `gasp' table in the face.
   *
   * @since:
   *   2.3.0
   */
  FT_EXPORT( FT_Int )
  FT_Get_Gasp( FT_Face  face,
               FT_UInt  ppem );

/* */

#endif /* _FT_GASP_H_ */

/* END */

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Editing: ftgasp.h

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