text: /***************************************************************************/
  /*                                                                         */
  /*  tttables.h                                                             */
  /*                                                                         */
  /*    Basic SFNT/TrueType tables definitions and interface                 */
  /*    (specification only).                                                */
  /*                                                                         */
  /*  Copyright 1996-2016 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 TTTABLES_H_
  #define TTTABLES_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>                                                             */
    /*    truetype_tables                                                    */
    /*                                                                       */
    /* <Title>                                                               */
    /*    TrueType Tables                                                    */
    /*                                                                       */
    /* <Abstract>                                                            */
    /*    TrueType specific table types and functions.                       */
    /*                                                                       */
    /* <Description>                                                         */
    /*    This section contains the definition of TrueType-specific tables   */
    /*    as well as some routines used to access and process them.          */
    /*                                                                       */
    /* <Order>                                                               */
    /*    TT_Header                                                          */
    /*    TT_HoriHeader                                                      */
    /*    TT_VertHeader                                                      */
    /*    TT_OS2                                                             */
    /*    TT_Postscript                                                      */
    /*    TT_PCLT                                                            */
    /*    TT_MaxProfile                                                      */
    /*                                                                       */
    /*    FT_Sfnt_Tag                                                        */
    /*    FT_Get_Sfnt_Table                                                  */
    /*    FT_Load_Sfnt_Table                                                 */
    /*    FT_Sfnt_Table_Info                                                 */
    /*                                                                       */
    /*    FT_Get_CMap_Language_ID                                            */
    /*    FT_Get_CMap_Format                                                 */
    /*                                                                       */
    /*    FT_PARAM_TAG_UNPATENTED_HINTING                                    */
    /*                                                                       */
    /*************************************************************************/
  
  
    /*************************************************************************/
    /*                                                                       */
    /* <Struct>                                                              */
    /*    TT_Header                                                          */
    /*                                                                       */
    /* <Description>                                                         */
    /*    A structure used to model a TrueType font header table.  All       */
    /*    fields follow the TrueType specification.                          */
    /*                                                                       */
    typedef struct  TT_Header_
    {
      FT_Fixed   Table_Version;
      FT_Fixed   Font_Revision;
  
      FT_Long    CheckSum_Adjust;
      FT_Long    Magic_Number;
  
      FT_UShort  Flags;
      FT_UShort  Units_Per_EM;
  
      FT_Long    Created [2];
      FT_Long    Modified[2];
  
      FT_Short   xMin;
      FT_Short   yMin;
      FT_Short   xMax;
      FT_Short   yMax;
  
      FT_UShort  Mac_Style;
      FT_UShort  Lowest_Rec_PPEM;
  
      FT_Short   Font_Direction;
      FT_Short   Index_To_Loc_Format;
      FT_Short   Glyph_Data_Format;
  
    } TT_Header;
  
  
    /*************************************************************************/
    /*                                                                       */
    /* <Struct>                                                              */
    /*    TT_HoriHeader                                                      */
    /*                                                                       */
    /* <Description>                                                         */
    /*    A structure used to model a TrueType horizontal header, the `hhea' */
    /*    table, as well as the corresponding horizontal metrics table,      */
    /*    i.e., the `hmtx' table.                                            */
    /*                                                                       */
    /* <Fields>                                                              */
    /*    Version                :: The table version.                       */
    /*                                                                       */
    /*    Ascender               :: The font's ascender, i.e., the distance  */
    /*                              from the baseline to the top-most of all */
    /*                              glyph points found in the font.          */
    /*                                                                       */
    /*                              This value is invalid in many fonts, as  */
    /*                              it is usually set by the font designer,  */
    /*                              and often reflects only a portion of the */
    /*                              glyphs found in the font (maybe ASCII).  */
    /*                                                                       */
    /*                              You should use the `sTypoAscender' field */
    /*                              of the OS/2 table instead if you want    */
    /*                              the correct one.                         */
    /*                                                                       */
    /*    Descender              :: The font's descender, i.e., the distance */
    /*                              from the baseline to the bottom-most of  */
    /*                              all glyph points found in the font.  It  */
    /*                              is negative.                             */
    /*                                                                       */
    /*                              This value is invalid in many fonts, as  */
    /*                              it is usually set by the font designer,  */
    /*                              and often reflects only a portion of the */
    /*                              glyphs found in the font (maybe ASCII).  */
    /*                                                                       */
    /*                              You should use the `sTypoDescender'      */
    /*                              field of the OS/2 table instead if you   */
    /*                              want the correct one.                    */
    /*                                                                       */
    /*    Line_Gap               :: The font's line gap, i.e., the distance  */
    /*                              to add to the ascender and descender to  */
    /*                              get the BTB, i.e., the                   */
    /*                              baseline-to-baseline distance for the    */
    /*                              font.                                    */
    /*                                                                       */
    /*    advance_Width_Max      :: This field is the maximum of all advance */
    /*                              widths found in the font.  It can be     */
    /*                              used to compute the maximum width of an  */
    /*                              arbitrary string of text.                */
    /*                                                                       */
    /*    min_Left_Side_Bearing  :: The minimum left side bearing of all     */
    /*                              glyphs within the font.                  */
    /*                                                                       */
    /*    min_Right_Side_Bearing :: The minimum right side bearing of all    */
    /*                              glyphs within the font.                  */
    /*                                                                       */
    /*    xMax_Extent            :: The maximum horizontal extent (i.e., the */
    /*                              `width' of a glyph's bounding box) for   */
    /*                              all glyphs in the font.                  */
    /*                                                                       */
    /*    caret_Slope_Rise       :: The rise coefficient of the cursor's     */
    /*                              slope of the cursor (slope=rise/run).    */
    /*                                                                       */
    /*    caret_Slope_Run        :: The run coefficient of the cursor's      */
    /*                              slope.                                   */
    /*                                                                       */
    /*    Reserved               :: 8~reserved bytes.                        */
    /*                                                                       */
    /*    metric_Data_Format     :: Always~0.                                */
    /*                                                                       */
    /*    number_Of_HMetrics     :: Number of HMetrics entries in the `hmtx' */
    /*                              table -- this value can be smaller than  */
    /*                              the total number of glyphs in the font.  */
    /*                                                                       */
    /*    long_metrics           :: A pointer into the `hmtx' table.         */
    /*                                                                       */
    /*    short_metrics          :: A pointer into the `hmtx' table.         */
    /*                                                                       */
    /* <Note>                                                                */
    /*    IMPORTANT: The TT_HoriHeader and TT_VertHeader structures should   */
    /*               be identical except for the names of their fields,      */
    /*               which are different.                                    */
    /*                                                                       */
    /*               This ensures that a single function in the `ttload'     */
    /*               module is able to read both the horizontal and vertical */
    /*               headers.                                                */
    /*                                                                       */
    typedef struct  TT_HoriHeader_
    {
      FT_Fixed   Version;
      FT_Short   Ascender;
      FT_Short   Descender;
      FT_Short   Line_Gap;
  
      FT_UShort  advance_Width_Max;      /* advance width maximum */
  
      FT_Short   min_Left_Side_Bearing;  /* minimum left-sb       */
      FT_Short   min_Right_Side_Bearing; /* minimum right-sb      */
      FT_Short   xMax_Extent;            /* xmax extents          */
      FT_Short   caret_Slope_Rise;
      FT_Short   caret_Slope_Run;
      FT_Short   caret_Offset;
  
      FT_Short   Reserved[4];
  
      FT_Short   metric_Data_Format;
      FT_UShort  number_Of_HMetrics;
  
      /* The following fields are not defined by the TrueType specification */
      /* but they are used to connect the metrics header to the relevant    */
      /* `HMTX' table.                                                      */
  
      void*      long_metrics;
      void*      short_metrics;
  
    } TT_HoriHeader;
  
  
    /*************************************************************************/
    /*                                                                       */
    /* <Struct>                                                              */
    /*    TT_VertHeader                                                      */
    /*                                                                       */
    /* <Description>                                                         */
    /*    A structure used to model a TrueType vertical header, the `vhea'   */
    /*    table, as well as the corresponding vertical metrics table, i.e.,  */
    /*    the `vmtx' table.                                                  */
    /*                                                                       */
    /* <Fields>                                                              */
    /*    Version                 :: The table version.                      */
    /*                                                                       */
    /*    Ascender                :: The font's ascender, i.e., the distance */
    /*                               from the baseline to the top-most of    */
    /*                               all glyph points found in the font.     */
    /*                                                                       */
    /*                               This value is invalid in many fonts, as */
    /*                               it is usually set by the font designer, */
    /*                               and often reflects only a portion of    */
    /*                               the glyphs found in the font (maybe     */
    /*                               ASCII).                                 */
    /*                                                                       */
    /*                               You should use the `sTypoAscender'      */
    /*                               field of the OS/2 table instead if you  */
    /*                               want the correct one.                   */
    /*                                                                       */
    /*    Descender               :: The font's descender, i.e., the         */
    /*                               distance from the baseline to the       */
    /*                               bottom-most of all glyph points found   */
    /*                               in the font.  It is negative.           */
    /*                                                                       */
    /*                               This value is invalid in many fonts, as */
    /*                               it is usually set by the font designer, */
    /*                               and often reflects only a portion of    */
    /*                               the glyphs found in the font (maybe     */
    /*                               ASCII).                                 */
    /*                                                                       */
    /*                               You should use the `sTypoDescender'     */
    /*                               field of the OS/2 table instead if you  */
    /*                               want the correct one.                   */
    /*                                                                       */
    /*    Line_Gap                :: The font's line gap, i.e., the distance */
    /*                               to add to the ascender and descender to */
    /*                               get the BTB, i.e., the                  */
    /*                               baseline-to-baseline distance for the   */
    /*                               font.                                   */
    /*                                                                       */
    /*    advance_Height_Max      :: This field is the maximum of all        */
    /*                               advance heights found in the font.  It  */
    /*                               can be used to compute the maximum      */
    /*                               height of an arbitrary string of text.  */
    /*                                                                       */
    /*    min_Top_Side_Bearing    :: The minimum top side bearing of all     */
    /*                               glyphs within the font.                 */
    /*                                                                       */
    /*    min_Bottom_Side_Bearing :: The minimum bottom side bearing of all  */
    /*                               glyphs within the font.                 */
    /*                                                                       */
    /*    yMax_Extent             :: The maximum vertical extent (i.e., the  */
    /*                               `height' of a glyph's bounding box) for */
    /*                               all glyphs in the font.                 */
    /*                                                                       */
    /*    caret_Slope_Rise        :: The rise coefficient of the cursor's    */
    /*                               slope of the cursor (slope=rise/run).   */
    /*                                                                       */
    /*    caret_Slope_Run         :: The run coefficient of the cursor's     */
    /*                               slope.                                  */
    /*                                                                       */
    /*    caret_Offset            :: The cursor's offset for slanted fonts.  */
    /*                               This value is `reserved' in vmtx        */
    /*                               version 1.0.                            */
    /*                                                                       */
    /*    Reserved                :: 8~reserved bytes.                       */
    /*                                                                       */
    /*    metric_Data_Format      :: Always~0.                               */
    /*                                                                       */
    /*    number_Of_HMetrics      :: Number of VMetrics entries in the       */
    /*                               `vmtx' table -- this value can be       */
    /*                               smaller than the total number of glyphs */
    /*                               in the font.                            */
    /*                                                                       */
    /*    long_metrics           :: A pointer into the `vmtx' table.         */
    /*                                                                       */
    /*    short_metrics          :: A pointer into the `vmtx' table.         */
    /*                                                                       */
    /* <Note>                                                                */
    /*    IMPORTANT: The TT_HoriHeader and TT_VertHeader structures should   */
    /*               be identical except for the names of their fields,      */
    /*               which are different.                                    */
    /*                                                                       */
    /*               This ensures that a single function in the `ttload'     */
    /*               module is able to read both the horizontal and vertical */
    /*               headers.                                                */
    /*                                                                       */
    typedef struct  TT_VertHeader_
    {
      FT_Fixed   Version;
      FT_Short   Ascender;
      FT_Short   Descender;
      FT_Short   Line_Gap;
  
      FT_UShort  advance_Height_Max;      /* advance height maximum */
  
      FT_Short   min_Top_Side_Bearing;    /* minimum left-sb or top-sb       */
      FT_Short   min_Bottom_Side_Bearing; /* minimum right-sb or bottom-sb   */
      FT_Short   yMax_Extent;             /* xmax or ymax extents            */
      FT_Short   caret_Slope_Rise;
      FT_Short   caret_Slope_Run;
      FT_Short   caret_Offset;
  
      FT_Short   Reserved[4];
  
      FT_Short   metric_Data_Format;
      FT_UShort  number_Of_VMetrics;
  
      /* The following fields are not defined by the TrueType specification */
      /* but they're used to connect the metrics header to the relevant     */
      /* `HMTX' or `VMTX' table.                                            */
  
      void*      long_metrics;
      void*      short_metrics;
  
    } TT_VertHeader;
  
  
    /*************************************************************************/
    /*                                                                       */
    /* <Struct>                                                              */
    /*    TT_OS2                                                             */
    /*                                                                       */
    /* <Description>                                                         */
    /*    A structure used to model a TrueType OS/2 table.  All fields       */
    /*    comply to the OpenType specification.                              */
    /*                                                                       */
    /*    Note that we now support old Mac fonts that do not include an OS/2 */
    /*    table.  In this case, the `version' field is always set to 0xFFFF. */
    /*                                                                       */
    typedef struct  TT_OS2_
    {
      FT_UShort  version;                /* 0x0001 - more or 0xFFFF */
      FT_Short   xAvgCharWidth;
      FT_UShort  usWeightClass;
      FT_UShort  usWidthClass;
      FT_UShort  fsType;
      FT_Short   ySubscriptXSize;
      FT_Short   ySubscriptYSize;
      FT_Short   ySubscriptXOffset;
      FT_Short   ySubscriptYOffset;
      FT_Short   ySuperscriptXSize;
      FT_Short   ySuperscriptYSize;
      FT_Short   ySuperscriptXOffset;
      FT_Short   ySuperscriptYOffset;
      FT_Short   yStrikeoutSize;
      FT_Short   yStrikeoutPosition;
      FT_Short   sFamilyClass;
  
      FT_Byte    panose[10];
  
      FT_ULong   ulUnicodeRange1;        /* Bits 0-31   */
      FT_ULong   ulUnicodeRange2;        /* Bits 32-63  */
      FT_ULong   ulUnicodeRange3;        /* Bits 64-95  */
      FT_ULong   ulUnicodeRange4;        /* Bits 96-127 */
  
      FT_Char    achVendID[4];
  
      FT_UShort  fsSelection;
      FT_UShort  usFirstCharIndex;
      FT_UShort  usLastCharIndex;
      FT_Short   sTypoAscender;
      FT_Short   sTypoDescender;
      FT_Short   sTypoLineGap;
      FT_UShort  usWinAscent;
      FT_UShort  usWinDescent;
  
      /* only version 1 and higher: */
  
      FT_ULong   ulCodePageRange1;       /* Bits 0-31   */
      FT_ULong   ulCodePageRange2;       /* Bits 32-63  */
  
      /* only version 2 and higher: */
  
      FT_Short   sxHeight;
      FT_Short   sCapHeight;
      FT_UShort  usDefaultChar;
      FT_UShort  usBreakChar;
      FT_UShort  usMaxContext;
  
      /* only version 5 and higher: */
  
      FT_UShort  usLowerOpticalPointSize;       /* in twips (1/20th points) */
      FT_UShort  usUpperOpticalPointSize;       /* in twips (1/20th points) */
  
    } TT_OS2;
  
  
    /*************************************************************************/
    /*                                                                       */
    /* <Struct>                                                              */
    /*    TT_Postscript                                                      */
    /*                                                                       */
    /* <Description>                                                         */
    /*    A structure used to model a TrueType PostScript table.  All fields */
    /*    comply to the TrueType specification.  This structure does not     */
    /*    reference the PostScript glyph names, which can be nevertheless    */
    /*    accessed with the `ttpost' module.                                 */
    /*                                                                       */
    typedef struct  TT_Postscript_
    {
      FT_Fixed  FormatType;
      FT_Fixed  italicAngle;
      FT_Short  underlinePosition;
      FT_Short  underlineThickness;
      FT_ULong  isFixedPitch;
      FT_ULong  minMemType42;
      FT_ULong  maxMemType42;
      FT_ULong  minMemType1;
      FT_ULong  maxMemType1;
  
      /* Glyph names follow in the file, but we don't   */
      /* load them by default.  See the ttpost.c file.  */
  
    } TT_Postscript;
  
  
    /*************************************************************************/
    /*                                                                       */
    /* <Struct>                                                              */
    /*    TT_PCLT                                                            */
    /*                                                                       */
    /* <Description>                                                         */
    /*    A structure used to model a TrueType PCLT table.  All fields       */
    /*    comply to the TrueType specification.                              */
    /*                                                                       */
    typedef struct  TT_PCLT_
    {
      FT_Fixed   Version;
      FT_ULong   FontNumber;
      FT_UShort  Pitch;
      FT_UShort  xHeight;
      FT_UShort  Style;
      FT_UShort  TypeFamily;
      FT_UShort  CapHeight;
      FT_UShort  SymbolSet;
      FT_Char    TypeFace[16];
      FT_Char    CharacterComplement[8];
      FT_Char    FileName[6];
      FT_Char    StrokeWeight;
      FT_Char    WidthType;
      FT_Byte    SerifStyle;
      FT_Byte    Reserved;
  
    } TT_PCLT;
  
  
    /*************************************************************************/
    /*                                                                       */
    /* <Struct>                                                              */
    /*    TT_MaxProfile                                                      */
    /*                                                                       */
    /* <Description>                                                         */
    /*    The maximum profile is a table containing many max values, which   */
    /*    can be used to pre-allocate arrays.  This ensures that no memory   */
    /*    allocation occurs during a glyph load.                             */
    /*                                                                       */
    /* <Fields>                                                              */
    /*    version               :: The version number.                       */
    /*                                                                       */
    /*    numGlyphs             :: The number of glyphs in this TrueType     */
    /*                             font.                                     */
    /*                                                                       */
    /*    maxPoints             :: The maximum number of points in a         */
    /*                             non-composite TrueType glyph.  See also   */
    /*                             the structure element                     */
    /*                             `maxCompositePoints'.                     */
    /*                                                                       */
    /*    maxContours           :: The maximum number of contours in a       */
    /*                             non-composite TrueType glyph.  See also   */
    /*                             the structure element                     */
    /*                             `maxCompositeContours'.                   */
    /*                                                                       */
    /*    maxCompositePoints    :: The maximum number of points in a         */
    /*                             composite TrueType glyph.  See also the   */
    /*                             structure element `maxPoints'.            */
    /*                                                                       */
    /*    maxCompositeContours  :: The maximum number of contours in a       */
    /*                             composite TrueType glyph.  See also the   */
    /*                             structure element `maxContours'.          */
    /*                                                                       */
    /*    maxZones              :: The maximum number of zones used for      */
    /*                             glyph hinting.                            */
    /*                                                                       */
    /*    maxTwilightPoints     :: The maximum number of points in the       */
    /*                             twilight zone used for glyph hinting.     */
    /*                                                                       */
    /*    maxStorage            :: The maximum number of elements in the     */
    /*                             storage area used for glyph hinting.      */
    /*                                                                       */
    /*    maxFunctionDefs       :: The maximum number of function            */
    /*                             definitions in the TrueType bytecode for  */
    /*                             this font.                                */
    /*                                                                       */
    /*    maxInstructionDefs    :: The maximum number of instruction         */
    /*                             definitions in the TrueType bytecode for  */
    /*                             this font.                                */
    /*                                                                       */
    /*    maxStackElements      :: The maximum number of stack elements used */
    /*                             during bytecode interpretation.           */
    /*                                                                       */
    /*    maxSizeOfInstructions :: The maximum number of TrueType opcodes    */
    /*                             used for glyph hinting.                   */
    /*                                                                       */
    /*    maxComponentElements  :: The maximum number of simple (i.e., non-  */
    /*                             composite) glyphs in a composite glyph.   */
    /*                                                                       */
    /*    maxComponentDepth     :: The maximum nesting depth of composite    */
    /*                             glyphs.                                   */
    /*                                                                       */
    /* <Note>                                                                */
    /*    This structure is only used during font loading.                   */
    /*                                                                       */
    typedef struct  TT_MaxProfile_
    {
      FT_Fixed   version;
      FT_UShort  numGlyphs;
      FT_UShort  maxPoints;
      FT_UShort  maxContours;
      FT_UShort  maxCompositePoints;
      FT_UShort  maxCompositeContours;
      FT_UShort  maxZones;
      FT_UShort  maxTwilightPoints;
      FT_UShort  maxStorage;
      FT_UShort  maxFunctionDefs;
      FT_UShort  maxInstructionDefs;
      FT_UShort  maxStackElements;
      FT_UShort  maxSizeOfInstructions;
      FT_UShort  maxComponentElements;
      FT_UShort  maxComponentDepth;
  
    } TT_MaxProfile;
  
  
    /*************************************************************************/
    /*                                                                       */
    /* <Enum>                                                                */
    /*    FT_Sfnt_Tag                                                        */
    /*                                                                       */
    /* <Description>                                                         */
    /*    An enumeration used to specify the index of an SFNT table.         */
    /*    Used in the @FT_Get_Sfnt_Table API function.                       */
    /*                                                                       */
    /* <Values>                                                              */
    /*    FT_SFNT_HEAD :: To access the font's @TT_Header structure.         */
    /*                                                                       */
    /*    FT_SFNT_MAXP :: To access the font's @TT_MaxProfile structure.     */
    /*                                                                       */
    /*    FT_SFNT_OS2  :: To access the font's @TT_OS2 structure.            */
    /*                                                                       */
    /*    FT_SFNT_HHEA :: To access the font's @TT_HoriHeader structure.     */
    /*                                                                       */
    /*    FT_SFNT_VHEA :: To access the font's @TT_VertHeader structure.     */
    /*                                                                       */
    /*    FT_SFNT_POST :: To access the font's @TT_Postscript structure.     */
    /*                                                                       */
    /*    FT_SFNT_PCLT :: To access the font's @TT_PCLT structure.           */
    /*                                                                       */
    typedef enum  FT_Sfnt_Tag_
    {
      FT_SFNT_HEAD,
      FT_SFNT_MAXP,
      FT_SFNT_OS2,
      FT_SFNT_HHEA,
      FT_SFNT_VHEA,
      FT_SFNT_POST,
      FT_SFNT_PCLT,
  
      FT_SFNT_MAX
  
    } FT_Sfnt_Tag;
  
    /* these constants are deprecated; use the corresponding `FT_Sfnt_Tag' */
    /* values instead                                                      */
  #define ft_sfnt_head  FT_SFNT_HEAD
  #define ft_sfnt_maxp  FT_SFNT_MAXP
  #define ft_sfnt_os2   FT_SFNT_OS2
  #define ft_sfnt_hhea  FT_SFNT_HHEA
  #define ft_sfnt_vhea  FT_SFNT_VHEA
  #define ft_sfnt_post  FT_SFNT_POST
  #define ft_sfnt_pclt  FT_SFNT_PCLT
  
  
    /*************************************************************************/
    /*                                                                       */
    /* <Function>                                                            */
    /*    FT_Get_Sfnt_Table                                                  */
    /*                                                                       */
    /* <Description>                                                         */
    /*    Return a pointer to a given SFNT table within a face.              */
    /*                                                                       */
    /* <Input>                                                               */
    /*    face :: A handle to the source.                                    */
    /*                                                                       */
    /*    tag  :: The index of the SFNT table.                               */
    /*                                                                       */
    /* <Return>                                                              */
    /*    A type-less pointer to the table.  This will be~0 in case of       */
    /*    error, or if the corresponding table was not found *OR* loaded     */
    /*    from the file.                                                     */
    /*                                                                       */
    /*    Use a typecast according to `tag' to access the structure          */
    /*    elements.                                                          */
    /*                                                                       */
    /* <Note>                                                                */
    /*    The table is owned by the face object and disappears with it.      */
    /*                                                                       */
    /*    This function is only useful to access SFNT tables that are loaded */
    /*    by the sfnt, truetype, and opentype drivers.  See @FT_Sfnt_Tag for */
    /*    a list.                                                            */
    /*                                                                       */
    /*    Here an example how to access the `vhea' table:                    */
    /*                                                                       */
    /*    {                                                                  */
    /*      TT_VertHeader*  vert_header;                                     */
    /*                                                                       */
    /*                                                                       */
    /*      vert_header =                                                    */
    /*        (TT_VertHeader*)FT_Get_Sfnt_Table( face, FT_SFNT_VHEA );       */
    /*    }                                                                  */
    /*                                                                       */
    FT_EXPORT( void* )
    FT_Get_Sfnt_Table( FT_Face      face,
                       FT_Sfnt_Tag  tag );
  
  
   /**************************************************************************
    *
    * @function:
    *   FT_Load_Sfnt_Table
    *
    * @description:
    *   Load any font table into client memory.
    *
    * @input:
    *   face ::
    *     A handle to the source face.
    *
    *   tag ::
    *     The four-byte tag of the table to load.  Use the value~0 if you want
    *     to access the whole font file.  Otherwise, you can use one of the
    *     definitions found in the @FT_TRUETYPE_TAGS_H file, or forge a new
    *     one with @FT_MAKE_TAG.
    *
    *   offset ::
    *     The starting offset in the table (or file if tag == 0).
    *
    * @output:
    *   buffer ::
    *     The target buffer address.  The client must ensure that the memory
    *     array is big enough to hold the data.
    *
    * @inout:
    *   length ::
    *     If the `length' parameter is NULL, then try to load the whole table.
    *     Return an error code if it fails.
    *
    *     Else, if `*length' is~0, exit immediately while returning the
    *     table's (or file) full size in it.
    *
    *     Else the number of bytes to read from the table or file, from the
    *     starting offset.
    *
    * @return:
    *   FreeType error code.  0~means success.
    *
    * @note:
    *   If you need to determine the table's length you should first call this
    *   function with `*length' set to~0, as in the following example:
    *
    *     {
    *       FT_ULong  length = 0;
    *
    *
    *       error = FT_Load_Sfnt_Table( face, tag, 0, NULL, &length );
    *       if ( error ) { ... table does not exist ... }
    *
    *       buffer = malloc( length );
    *       if ( buffer == NULL ) { ... not enough memory ... }
    *
    *       error = FT_Load_Sfnt_Table( face, tag, 0, buffer, &length );
    *       if ( error ) { ... could not load table ... }
    *     }
    *
    *   Note that structures like @TT_Header or @TT_OS2 can't be used with
    *   this function; they are limited to @FT_Get_Sfnt_Table.  Reason is that
    *   those structures depend on the processor architecture, with varying
    *   size (e.g. 32bit vs. 64bit) or order (big endian vs. little endian).
    *
    */
    FT_EXPORT( FT_Error )
    FT_Load_Sfnt_Table( FT_Face    face,
                        FT_ULong   tag,
                        FT_Long    offset,
                        FT_Byte*   buffer,
                        FT_ULong*  length );
  
  
   /**************************************************************************
    *
    * @function:
    *   FT_Sfnt_Table_Info
    *
    * @description:
    *   Return information on an SFNT table.
    *
    * @input:
    *   face ::
    *     A handle to the source face.
    *
    *   table_index ::
    *     The index of an SFNT table.  The function returns
    *     FT_Err_Table_Missing for an invalid value.
    *
    * @inout:
    *   tag ::
    *     The name tag of the SFNT table.  If the value is NULL, `table_index'
    *     is ignored, and `length' returns the number of SFNT tables in the
    *     font.
    *
    * @output:
    *   length ::
    *     The length of the SFNT table (or the number of SFNT tables, depending
    *     on `tag').
    *
    * @return:
    *   FreeType error code.  0~means success.
    *
    * @note:
    *   While parsing fonts, FreeType handles SFNT tables with length zero as
    *   missing.
    *
    */
    FT_EXPORT( FT_Error )
    FT_Sfnt_Table_Info( FT_Face    face,
                        FT_UInt    table_index,
                        FT_ULong  *tag,
                        FT_ULong  *length );
  
  
    /*************************************************************************/
    /*                                                                       */
    /* <Function>                                                            */
    /*    FT_Get_CMap_Language_ID                                            */
    /*                                                                       */
    /* <Description>                                                         */
    /*    Return TrueType/sfnt specific cmap language ID.  Definitions of    */
    /*    language ID values are in `ttnameid.h'.                            */
    /*                                                                       */
    /* <Input>                                                               */
    /*    charmap ::                                                         */
    /*      The target charmap.                                              */
    /*                                                                       */
    /* <Return>                                                              */
    /*    The language ID of `charmap'.  If `charmap' doesn't belong to a    */
    /*    TrueType/sfnt face, just return~0 as the default value.            */
    /*                                                                       */
    /*    For a format~14 cmap (to access Unicode IVS), the return value is  */
    /*    0xFFFFFFFF.                                                        */
    /*                                                                       */
    FT_EXPORT( FT_ULong )
    FT_Get_CMap_Language_ID( FT_CharMap  charmap );
  
  
    /*************************************************************************/
    /*                                                                       */
    /* <Function>                                                            */
    /*    FT_Get_CMap_Format                                                 */
    /*                                                                       */
    /* <Description>                                                         */
    /*    Return TrueType/sfnt specific cmap format.                         */
    /*                                                                       */
    /* <Input>                                                               */
    /*    charmap ::                                                         */
    /*      The target charmap.                                              */
    /*                                                                       */
    /* <Return>                                                              */
    /*    The format of `charmap'.  If `charmap' doesn't belong to a         */
    /*    TrueType/sfnt face, return -1.                                     */
    /*                                                                       */
    FT_EXPORT( FT_Long )
    FT_Get_CMap_Format( FT_CharMap  charmap );
  
    /* */
  
  
  FT_END_HEADER
  
  #endif /* TTTABLES_H_ */
  
  
  /* END */
  