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      1 /***************************************************************************/
      2 /*                                                                         */
      3 /*  ftwinfnt.h                                                             */
      4 /*                                                                         */
      5 /*    FreeType API for accessing Windows fnt-specific data.                */
      6 /*                                                                         */
      7 /*  Copyright 2003-2015 by                                                 */
      8 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
      9 /*                                                                         */
     10 /*  This file is part of the FreeType project, and may only be used,       */
     11 /*  modified, and distributed under the terms of the FreeType project      */
     12 /*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
     13 /*  this file you indicate that you have read the license and              */
     14 /*  understand and accept it fully.                                        */
     15 /*                                                                         */
     16 /***************************************************************************/
     17 
     18 
     19 #ifndef __FTWINFNT_H__
     20 #define __FTWINFNT_H__
     21 
     22 #include <ft2build.h>
     23 #include FT_FREETYPE_H
     24 
     25 #ifdef FREETYPE_H
     26 #error "freetype.h of FreeType 1 has been loaded!"
     27 #error "Please fix the directory search order for header files"
     28 #error "so that freetype.h of FreeType 2 is found first."
     29 #endif
     30 
     31 
     32 FT_BEGIN_HEADER
     33 
     34 
     35   /*************************************************************************/
     36   /*                                                                       */
     37   /* <Section>                                                             */
     38   /*    winfnt_fonts                                                       */
     39   /*                                                                       */
     40   /* <Title>                                                               */
     41   /*    Window FNT Files                                                   */
     42   /*                                                                       */
     43   /* <Abstract>                                                            */
     44   /*    Windows FNT specific API.                                          */
     45   /*                                                                       */
     46   /* <Description>                                                         */
     47   /*    This section contains the declaration of Windows FNT specific      */
     48   /*    functions.                                                         */
     49   /*                                                                       */
     50   /*************************************************************************/
     51 
     52 
     53   /*************************************************************************
     54    *
     55    * @enum:
     56    *   FT_WinFNT_ID_XXX
     57    *
     58    * @description:
     59    *   A list of valid values for the `charset' byte in
     60    *   @FT_WinFNT_HeaderRec.  Exact mapping tables for the various cpXXXX
     61    *   encodings (except for cp1361) can be found at
     62    *   ftp://ftp.unicode.org/Public in the MAPPINGS/VENDORS/MICSFT/WINDOWS
     63    *   subdirectory.  cp1361 is roughly a superset of
     64    *   MAPPINGS/OBSOLETE/EASTASIA/KSC/JOHAB.TXT.
     65    *
     66    * @values:
     67    *   FT_WinFNT_ID_DEFAULT ::
     68    *     This is used for font enumeration and font creation as a
     69    *     `don't care' value.  Valid font files don't contain this value.
     70    *     When querying for information about the character set of the font
     71    *     that is currently selected into a specified device context, this
     72    *     return value (of the related Windows API) simply denotes failure.
     73    *
     74    *   FT_WinFNT_ID_SYMBOL ::
     75    *     There is no known mapping table available.
     76    *
     77    *   FT_WinFNT_ID_MAC ::
     78    *     Mac Roman encoding.
     79    *
     80    *   FT_WinFNT_ID_OEM ::
     81    *     From Michael Pttgen <michael (at) poettgen.de>:
     82    *
     83    *       The `Windows Font Mapping' article says that FT_WinFNT_ID_OEM
     84    *       is used for the charset of vector fonts, like `modern.fon',
     85    *       `roman.fon', and `script.fon' on Windows.
     86    *
     87    *       The `CreateFont' documentation says: The FT_WinFNT_ID_OEM value
     88    *       specifies a character set that is operating-system dependent.
     89    *
     90    *       The `IFIMETRICS' documentation from the `Windows Driver
     91    *       Development Kit' says: This font supports an OEM-specific
     92    *       character set.  The OEM character set is system dependent.
     93    *
     94    *       In general OEM, as opposed to ANSI (i.e., cp1252), denotes the
     95    *       second default codepage that most international versions of
     96    *       Windows have.  It is one of the OEM codepages from
     97    *
     98    *         https://msdn.microsoft.com/en-us/goglobal/bb964655,
     99    *
    100    *       and is used for the `DOS boxes', to support legacy applications.
    101    *       A German Windows version for example usually uses ANSI codepage
    102    *       1252 and OEM codepage 850.
    103    *
    104    *   FT_WinFNT_ID_CP874 ::
    105    *     A superset of Thai TIS 620 and ISO 8859-11.
    106    *
    107    *   FT_WinFNT_ID_CP932 ::
    108    *     A superset of Japanese Shift-JIS (with minor deviations).
    109    *
    110    *   FT_WinFNT_ID_CP936 ::
    111    *     A superset of simplified Chinese GB 2312-1980 (with different
    112    *     ordering and minor deviations).
    113    *
    114    *   FT_WinFNT_ID_CP949 ::
    115    *     A superset of Korean Hangul KS~C 5601-1987 (with different
    116    *     ordering and minor deviations).
    117    *
    118    *   FT_WinFNT_ID_CP950 ::
    119    *     A superset of traditional Chinese Big~5 ETen (with different
    120    *     ordering and minor deviations).
    121    *
    122    *   FT_WinFNT_ID_CP1250 ::
    123    *     A superset of East European ISO 8859-2 (with slightly different
    124    *     ordering).
    125    *
    126    *   FT_WinFNT_ID_CP1251 ::
    127    *     A superset of Russian ISO 8859-5 (with different ordering).
    128    *
    129    *   FT_WinFNT_ID_CP1252 ::
    130    *     ANSI encoding.  A superset of ISO 8859-1.
    131    *
    132    *   FT_WinFNT_ID_CP1253 ::
    133    *     A superset of Greek ISO 8859-7 (with minor modifications).
    134    *
    135    *   FT_WinFNT_ID_CP1254 ::
    136    *     A superset of Turkish ISO 8859-9.
    137    *
    138    *   FT_WinFNT_ID_CP1255 ::
    139    *     A superset of Hebrew ISO 8859-8 (with some modifications).
    140    *
    141    *   FT_WinFNT_ID_CP1256 ::
    142    *     A superset of Arabic ISO 8859-6 (with different ordering).
    143    *
    144    *   FT_WinFNT_ID_CP1257 ::
    145    *     A superset of Baltic ISO 8859-13 (with some deviations).
    146    *
    147    *   FT_WinFNT_ID_CP1258 ::
    148    *     For Vietnamese.  This encoding doesn't cover all necessary
    149    *     characters.
    150    *
    151    *   FT_WinFNT_ID_CP1361 ::
    152    *     Korean (Johab).
    153    */
    154 
    155 #define FT_WinFNT_ID_CP1252    0
    156 #define FT_WinFNT_ID_DEFAULT   1
    157 #define FT_WinFNT_ID_SYMBOL    2
    158 #define FT_WinFNT_ID_MAC      77
    159 #define FT_WinFNT_ID_CP932   128
    160 #define FT_WinFNT_ID_CP949   129
    161 #define FT_WinFNT_ID_CP1361  130
    162 #define FT_WinFNT_ID_CP936   134
    163 #define FT_WinFNT_ID_CP950   136
    164 #define FT_WinFNT_ID_CP1253  161
    165 #define FT_WinFNT_ID_CP1254  162
    166 #define FT_WinFNT_ID_CP1258  163
    167 #define FT_WinFNT_ID_CP1255  177
    168 #define FT_WinFNT_ID_CP1256  178
    169 #define FT_WinFNT_ID_CP1257  186
    170 #define FT_WinFNT_ID_CP1251  204
    171 #define FT_WinFNT_ID_CP874   222
    172 #define FT_WinFNT_ID_CP1250  238
    173 #define FT_WinFNT_ID_OEM     255
    174 
    175 
    176   /*************************************************************************/
    177   /*                                                                       */
    178   /* <Struct>                                                              */
    179   /*    FT_WinFNT_HeaderRec                                                */
    180   /*                                                                       */
    181   /* <Description>                                                         */
    182   /*    Windows FNT Header info.                                           */
    183   /*                                                                       */
    184   typedef struct  FT_WinFNT_HeaderRec_
    185   {
    186     FT_UShort  version;
    187     FT_ULong   file_size;
    188     FT_Byte    copyright[60];
    189     FT_UShort  file_type;
    190     FT_UShort  nominal_point_size;
    191     FT_UShort  vertical_resolution;
    192     FT_UShort  horizontal_resolution;
    193     FT_UShort  ascent;
    194     FT_UShort  internal_leading;
    195     FT_UShort  external_leading;
    196     FT_Byte    italic;
    197     FT_Byte    underline;
    198     FT_Byte    strike_out;
    199     FT_UShort  weight;
    200     FT_Byte    charset;
    201     FT_UShort  pixel_width;
    202     FT_UShort  pixel_height;
    203     FT_Byte    pitch_and_family;
    204     FT_UShort  avg_width;
    205     FT_UShort  max_width;
    206     FT_Byte    first_char;
    207     FT_Byte    last_char;
    208     FT_Byte    default_char;
    209     FT_Byte    break_char;
    210     FT_UShort  bytes_per_row;
    211     FT_ULong   device_offset;
    212     FT_ULong   face_name_offset;
    213     FT_ULong   bits_pointer;
    214     FT_ULong   bits_offset;
    215     FT_Byte    reserved;
    216     FT_ULong   flags;
    217     FT_UShort  A_space;
    218     FT_UShort  B_space;
    219     FT_UShort  C_space;
    220     FT_UShort  color_table_offset;
    221     FT_ULong   reserved1[4];
    222 
    223   } FT_WinFNT_HeaderRec;
    224 
    225 
    226   /*************************************************************************/
    227   /*                                                                       */
    228   /* <Struct>                                                              */
    229   /*    FT_WinFNT_Header                                                   */
    230   /*                                                                       */
    231   /* <Description>                                                         */
    232   /*    A handle to an @FT_WinFNT_HeaderRec structure.                     */
    233   /*                                                                       */
    234   typedef struct FT_WinFNT_HeaderRec_*  FT_WinFNT_Header;
    235 
    236 
    237   /**********************************************************************
    238    *
    239    * @function:
    240    *    FT_Get_WinFNT_Header
    241    *
    242    * @description:
    243    *    Retrieve a Windows FNT font info header.
    244    *
    245    * @input:
    246    *    face    :: A handle to the input face.
    247    *
    248    * @output:
    249    *    aheader :: The WinFNT header.
    250    *
    251    * @return:
    252    *   FreeType error code.  0~means success.
    253    *
    254    * @note:
    255    *   This function only works with Windows FNT faces, returning an error
    256    *   otherwise.
    257    */
    258   FT_EXPORT( FT_Error )
    259   FT_Get_WinFNT_Header( FT_Face               face,
    260                         FT_WinFNT_HeaderRec  *aheader );
    261 
    262   /* */
    263 
    264 
    265 FT_END_HEADER
    266 
    267 #endif /* __FTWINFNT_H__ */
    268 
    269 
    270 /* END */
    271 
    272 
    273 /* Local Variables: */
    274 /* coding: utf-8    */
    275 /* End:             */
    276