harfbuzz-0.1/include/harfbuzz-gdef-private.h

   1 /*
   2  * Copyright (C) 1998-2004  David Turner and Werner Lemberg
   3  * Copyright (C) 2006  Behdad Esfahbod
   4  *
   5  * This is part of HarfBuzz, an OpenType Layout engine library.
   6  *
   7  * Permission is hereby granted, without written agreement and without
   8  * license or royalty fees, to use, copy, modify, and distribute this
   9  * software and its documentation for any purpose, provided that the
  10  * above copyright notice and the following two paragraphs appear in
  11  * all copies of this software.
  12  *
  13  * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
  14  * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
  15  * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
  16  * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
  17  * DAMAGE.
  18  *
  19  * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
  20  * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
  21  * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
  22  * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
  23  * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
  24  */
  25
  26 #ifndef HARFBUZZ_GDEF_PRIVATE_H
  27 #define HARFBUZZ_GDEF_PRIVATE_H
  28
  29 #include "harfbuzz-impl.h"
  30 #include "harfbuzz-stream-private.h"
  31 #include "harfbuzz-buffer-private.h"
  32 #include "harfbuzz-gdef.h"
  33
  34 HB_BEGIN_HEADER
  35
  36
  37 /* Attachment related structures */
  38
  39 struct  HB_AttachPoint_
  40 {
  41   HB_UShort   PointCount;             /* size of the PointIndex array */
  42   HB_UShort*  PointIndex;             /* array of contour points      */
  43 };
  44
  45 /* Ligature Caret related structures */
  46
  47 struct  HB_CaretValueFormat1_
  48 {
  49   HB_Short  Coordinate;               /* x or y value (in design units) */
  50 };
  51
  52 typedef struct HB_CaretValueFormat1_  HB_CaretValueFormat1;
  53
  54
  55 struct  HB_CaretValueFormat2_
  56 {
  57   HB_UShort  CaretValuePoint;         /* contour point index on glyph */
  58 };
  59
  60 typedef struct HB_CaretValueFormat2_  HB_CaretValueFormat2;
  61
  62
  63 struct  HB_CaretValueFormat3_
  64 {
  65   HB_Short    Coordinate;             /* x or y value (in design units) */
  66   HB_Device  Device;                 /* Device table for x or y value  */
  67 };
  68
  69 typedef struct HB_CaretValueFormat3_  HB_CaretValueFormat3;
  70
  71
  72 struct  HB_CaretValueFormat4_
  73 {
  74   HB_UShort  IdCaretValue;            /* metric ID */
  75 };
  76
  77 typedef struct HB_CaretValueFormat4_  HB_CaretValueFormat4;
  78
  79
  80 struct  HB_CaretValue_
  81 {
  82   HB_UShort  CaretValueFormat;        /* 1, 2, 3, or 4 */
  83
  84   union
  85   {
  86     HB_CaretValueFormat1  cvf1;
  87     HB_CaretValueFormat2  cvf2;
  88     HB_CaretValueFormat3  cvf3;
  89     HB_CaretValueFormat4  cvf4;
  90   } cvf;
  91 };
  92
  93 typedef struct HB_CaretValue_  HB_CaretValue;
  94
  95
  96 struct  HB_LigGlyph_
  97 {
  98   HB_Bool          loaded;
  99
 100   HB_UShort        CaretCount;        /* number of caret values */
 101   HB_CaretValue*  CaretValue;        /* array of caret values  */
 102 };
 103
 104
 105 HB_INTERNAL HB_Error
 106 _HB_GDEF_Add_Glyph_Property( HB_GDEFHeader* gdef,
 107                                        HB_UShort        glyphID,
 108                                        HB_UShort        property );
 109
 110 HB_INTERNAL HB_Error
 111 _HB_GDEF_Check_Property( HB_GDEFHeader* gdef,
 112                                    HB_GlyphItem    item,
 113                                    HB_UShort        flags,
 114                                    HB_UShort*       property );
 115
 116 HB_INTERNAL HB_Error
 117 _HB_GDEF_LoadMarkAttachClassDef_From_LookupFlags( HB_GDEFHeader* gdef,
 118                                                   HB_Stream      input,
 119                                                   HB_Lookup*     lo,
 120                                                   HB_UShort      num_lookups );
 121
 122 HB_END_HEADER
 123
 124 #endif /* HARFBUZZ_GDEF_PRIVATE_H */