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freetype.h	161.65 KB	-rw-r--r--
ftadvanc.h	5.35 KB	-rw-r--r--
ftbbox.h	2.59 KB	-rw-r--r--
ftbdf.h	5.21 KB	-rw-r--r--
ftbitmap.h	8.84 KB	-rw-r--r--
ftbzip2.h	2.68 KB	-rw-r--r--
ftcache.h	33.08 KB	-rw-r--r--
ftchapters.h	2.45 KB	-rw-r--r--
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ftcolor.h	8.59 KB	-rw-r--r--
ftdriver.h	46.34 KB	-rw-r--r--
fterrdef.h	12.05 KB	-rw-r--r--
fterrors.h	8.7 KB	-rw-r--r--
ftfntfmt.h	2.17 KB	-rw-r--r--
ftgasp.h	4.05 KB	-rw-r--r--
ftglyph.h	18.07 KB	-rw-r--r--
ftgxval.h	10.39 KB	-rw-r--r--
ftgzip.h	4.07 KB	-rw-r--r--
ftimage.h	38.25 KB	-rw-r--r--
ftincrem.h	10.08 KB	-rw-r--r--
ftlcdfil.h	11.69 KB	-rw-r--r--
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ftoutln.h	17.07 KB	-rw-r--r--
ftparams.h	5.47 KB	-rw-r--r--
ftpfr.h	4.81 KB	-rw-r--r--
ftrender.h	6.47 KB	-rw-r--r--
ftsizes.h	4.2 KB	-rw-r--r--
ftsnames.h	7.56 KB	-rw-r--r--
ftstroke.h	21.31 KB	-rw-r--r--
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fttypes.h	14.13 KB	-rw-r--r--
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t1tables.h	22.31 KB	-rw-r--r--
ttnameid.h	57.41 KB	-rw-r--r--
tttables.h	24.65 KB	-rw-r--r--
tttags.h	4.93 KB	-rw-r--r--

Code Editor : ftpfr.h

/****************************************************************************
 *
 * ftpfr.h
 *
 *   FreeType API for accessing PFR-specific data (specification only).
 *
 * Copyright (C) 2002-2019 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 FTPFR_H_
#define FTPFR_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:
   *   pfr_fonts
   *
   * @title:
   *   PFR Fonts
   *
   * @abstract:
   *   PFR/TrueDoc-specific API.
   *
   * @description:
   *   This section contains the declaration of PFR-specific functions.
   *
   */

/**************************************************************************
   *
   * @function:
   *    FT_Get_PFR_Metrics
   *
   * @description:
   *    Return the outline and metrics resolutions of a given PFR face.
   *
   * @input:
   *    face ::
   *      Handle to the input face.  It can be a non-PFR face.
   *
   * @output:
   *    aoutline_resolution ::
   *      Outline resolution.  This is equivalent to `face->units_per_EM` for
   *      non-PFR fonts.  Optional (parameter can be `NULL`).
   *
   *    ametrics_resolution ::
   *      Metrics resolution.  This is equivalent to `outline_resolution` for
   *      non-PFR fonts.  Optional (parameter can be `NULL`).
   *
   *    ametrics_x_scale ::
   *      A 16.16 fixed-point number used to scale distance expressed in
   *      metrics units to device subpixels.  This is equivalent to
   *      `face->size->x_scale`, but for metrics only.  Optional (parameter
   *      can be `NULL`).
   *
   *    ametrics_y_scale ::
   *      Same as `ametrics_x_scale` but for the vertical direction.
   *      optional (parameter can be `NULL`).
   *
   * @return:
   *    FreeType error code.  0~means success.
   *
   * @note:
   *   If the input face is not a PFR, this function will return an error.
   *   However, in all cases, it will return valid values.
   */
  FT_EXPORT( FT_Error )
  FT_Get_PFR_Metrics( FT_Face    face,
                      FT_UInt   *aoutline_resolution,
                      FT_UInt   *ametrics_resolution,
                      FT_Fixed  *ametrics_x_scale,
                      FT_Fixed  *ametrics_y_scale );

/**************************************************************************
   *
   * @function:
   *    FT_Get_PFR_Kerning
   *
   * @description:
   *    Return the kerning pair corresponding to two glyphs in a PFR face.
   *    The distance is expressed in metrics units, unlike the result of
   *    @FT_Get_Kerning.
   *
   * @input:
   *    face ::
   *      A handle to the input face.
   *
   *    left ::
   *      Index of the left glyph.
   *
   *    right ::
   *      Index of the right glyph.
   *
   * @output:
   *    avector ::
   *      A kerning vector.
   *
   * @return:
   *    FreeType error code.  0~means success.
   *
   * @note:
   *    This function always return distances in original PFR metrics units.
   *    This is unlike @FT_Get_Kerning with the @FT_KERNING_UNSCALED mode,
   *    which always returns distances converted to outline units.
   *
   *    You can use the value of the `x_scale` and `y_scale` parameters
   *    returned by @FT_Get_PFR_Metrics to scale these to device subpixels.
   */
  FT_EXPORT( FT_Error )
  FT_Get_PFR_Kerning( FT_Face     face,
                      FT_UInt     left,
                      FT_UInt     right,
                      FT_Vector  *avector );

/**************************************************************************
   *
   * @function:
   *    FT_Get_PFR_Advance
   *
   * @description:
   *    Return a given glyph advance, expressed in original metrics units,
   *    from a PFR font.
   *
   * @input:
   *    face ::
   *      A handle to the input face.
   *
   *    gindex ::
   *      The glyph index.
   *
   * @output:
   *    aadvance ::
   *      The glyph advance in metrics units.
   *
   * @return:
   *    FreeType error code.  0~means success.
   *
   * @note:
   *    You can use the `x_scale` or `y_scale` results of @FT_Get_PFR_Metrics
   *    to convert the advance to device subpixels (i.e., 1/64th of pixels).
   */
  FT_EXPORT( FT_Error )
  FT_Get_PFR_Advance( FT_Face   face,
                      FT_UInt   gindex,
                      FT_Pos   *aadvance );

/* */

FT_END_HEADER

#endif /* FTPFR_H_ */

/* END */

${this.title}

Code Editor : ftpfr.h