src/hb-ot-layout-gdef-private.hh - third_party/harfbuzz - Git at Google

 /*
  * Copyright (C) 2007,2008,2009  Red Hat, Inc.
  *
  *  This is part of HarfBuzz, an OpenType Layout engine library.
  *
  * Permission is hereby granted, without written agreement and without
  * license or royalty fees, to use, copy, modify, and distribute this
  * software and its documentation for any purpose, provided that the
  * above copyright notice and the following two paragraphs appear in
  * all copies of this software.
  *
  * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
  * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
  * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
  * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
  * DAMAGE.
  *
  * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
  * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
  * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
  * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
  * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
  *
  * Red Hat Author(s): Behdad Esfahbod
  */

 #ifndef HB_OT_LAYOUT_GDEF_PRIVATE_HH
 #define HB_OT_LAYOUT_GDEF_PRIVATE_HH

 #include "hb-ot-layout-common-private.hh"

 #include "hb-font-private.h"


 /*
  * Attachment List Table
  */

 typedef ArrayOf<USHORT> AttachPoint;	/* Array of contour point indices--in
 					 * increasing numerical order */
 ASSERT_SIZE (AttachPoint, 2);

 struct AttachList
 {
   inline bool get_attach_points (hb_codepoint_t glyph_id,
 				 unsigned int *point_count /* IN/OUT */,
 				 unsigned int *point_array /* OUT */) const
   {
     unsigned int index = (this+coverage) (glyph_id);
     if (index == NOT_COVERED)
     {
       *point_count = 0;
       return false;
     }
     const AttachPoint &points = this+attachPoint[index];

     unsigned int count = MIN (points.len, *point_count);
     for (unsigned int i = 0; i < count; i++)
       point_array[i] = points[i];

     *point_count = points.len;

     return true;
   }

   inline bool sanitize (SANITIZE_ARG_DEF) {
     SANITIZE_DEBUG ();
     return SANITIZE_THIS2 (coverage, attachPoint);
   }

   private:
   OffsetTo<Coverage>
 		coverage;		/* Offset to Coverage table -- from
 					 * beginning of AttachList table */
   OffsetArrayOf<AttachPoint>
 		attachPoint;		/* Array of AttachPoint tables
 					 * in Coverage Index order */
 };
 ASSERT_SIZE (AttachList, 4);

 /*
  * Ligature Caret Table
  */

 struct CaretValueFormat1
 {
   friend struct CaretValue;

   private:
   inline int get_caret_value (hb_ot_layout_context_t *context, hb_codepoint_t glyph_id) const
   {
     /* TODO vertical */
     return context->font->x_scale * coordinate / 0x10000;
   }

   inline bool sanitize (SANITIZE_ARG_DEF) {
     SANITIZE_DEBUG ();
     return SANITIZE_SELF ();
   }

   private:
   USHORT	caretValueFormat;	/* Format identifier--format = 1 */
   SHORT		coordinate;		/* X or Y value, in design units */
 };
 ASSERT_SIZE (CaretValueFormat1, 4);

 struct CaretValueFormat2
 {
   friend struct CaretValue;

   private:
   inline int get_caret_value (hb_ot_layout_context_t *context, hb_codepoint_t glyph_id) const
   {
     return /* TODO contour point */ 0;
   }

   inline bool sanitize (SANITIZE_ARG_DEF) {
     SANITIZE_DEBUG ();
     return SANITIZE_SELF ();
   }

   private:
   USHORT	caretValueFormat;	/* Format identifier--format = 2 */
   USHORT	caretValuePoint;	/* Contour point index on glyph */
 };
 ASSERT_SIZE (CaretValueFormat2, 4);

 struct CaretValueFormat3
 {
   friend struct CaretValue;

   inline int get_caret_value (hb_ot_layout_context_t *context, hb_codepoint_t glyph_id) const
   {
     /* TODO vertical */
     return context->font->x_scale * coordinate / 0x10000 +
 	   ((this+deviceTable).get_delta (context->font->x_ppem) << 6);
   }

   inline bool sanitize (SANITIZE_ARG_DEF) {
     SANITIZE_DEBUG ();
     return SANITIZE_SELF () && SANITIZE_THIS (deviceTable);
   }

   private:
   USHORT	caretValueFormat;	/* Format identifier--format = 3 */
   SHORT		coordinate;		/* X or Y value, in design units */
   OffsetTo<Device>
 		deviceTable;		/* Offset to Device table for X or Y
 					 * value--from beginning of CaretValue
 					 * table */
 };
 ASSERT_SIZE (CaretValueFormat3, 6);

 struct CaretValue
 {
   inline int get_caret_value (hb_ot_layout_context_t *context, hb_codepoint_t glyph_id) const
   {
     switch (u.format) {
     case 1: return u.format1->get_caret_value (context, glyph_id);
     case 2: return u.format2->get_caret_value (context, glyph_id);
     case 3: return u.format3->get_caret_value (context, glyph_id);
     default:return 0;
     }
   }

   inline bool sanitize (SANITIZE_ARG_DEF) {
     SANITIZE_DEBUG ();
     if (!SANITIZE (u.format)) return false;
     switch (u.format) {
     case 1: return u.format1->sanitize (SANITIZE_ARG);
     case 2: return u.format2->sanitize (SANITIZE_ARG);
     case 3: return u.format3->sanitize (SANITIZE_ARG);
     default:return true;
     }
   }

   private:
   union {
   USHORT		format;		/* Format identifier */
   CaretValueFormat1	format1[];
   CaretValueFormat2	format2[];
   CaretValueFormat3	format3[];
   } u;
 };
 ASSERT_SIZE (CaretValue, 2);

 struct LigGlyph
 {
   inline void get_lig_carets (hb_ot_layout_context_t *context,
 			      hb_codepoint_t glyph_id,
 			      unsigned int *caret_count /* IN/OUT */,
 			      int *caret_array /* OUT */) const
   {

     unsigned int count = MIN (carets.len, *caret_count);
     for (unsigned int i = 0; i < count; i++)
       caret_array[i] = (this+carets[i]).get_caret_value (context, glyph_id);

     *caret_count = carets.len;
   }

   inline bool sanitize (SANITIZE_ARG_DEF) {
     SANITIZE_DEBUG ();
     return SANITIZE_THIS (carets);
   }

   private:
   OffsetArrayOf<CaretValue>
 		carets;			/* Offset array of CaretValue tables
 					 * --from beginning of LigGlyph table
 					 * --in increasing coordinate order */
 };
 ASSERT_SIZE (LigGlyph, 2);

 struct LigCaretList
 {
   inline bool get_lig_carets (hb_ot_layout_context_t *context,
 			      hb_codepoint_t glyph_id,
 			      unsigned int *caret_count /* IN/OUT */,
 			      int *caret_array /* OUT */) const
   {
     unsigned int index = (this+coverage) (glyph_id);
     if (index == NOT_COVERED)
     {
       *caret_count = 0;
       return false;
     }
     const LigGlyph &lig_glyph = this+ligGlyph[index];
     lig_glyph.get_lig_carets (context, glyph_id, caret_count, caret_array);
     return true;
   }

   inline bool sanitize (SANITIZE_ARG_DEF) {
     SANITIZE_DEBUG ();
     return SANITIZE_THIS2 (coverage, ligGlyph);
   }

   private:
   OffsetTo<Coverage>
 		coverage;		/* Offset to Coverage table--from
 					 * beginning of LigCaretList table */
   OffsetArrayOf<LigGlyph>
 		ligGlyph;		/* Array of LigGlyph tables
 					 * in Coverage Index order */
 };
 ASSERT_SIZE (LigCaretList, 4);


 struct MarkGlyphSetsFormat1
 {
   inline bool covers (unsigned int set_index, hb_codepoint_t glyph_id) const
   { return (this+coverage[set_index]).get_coverage (glyph_id) != NOT_COVERED; }

   inline bool sanitize (SANITIZE_ARG_DEF) {
     SANITIZE_DEBUG ();
     return SANITIZE_THIS (coverage);
   }

   private:
   USHORT	format;			/* Format identifier--format = 1 */
   LongOffsetArrayOf<Coverage>
 		coverage;		/* Array of long offsets to mark set
 					 * coverage tables */
 };
 ASSERT_SIZE (MarkGlyphSetsFormat1, 4);

 struct MarkGlyphSets
 {
   inline bool covers (unsigned int set_index, hb_codepoint_t glyph_id) const
   {
     switch (u.format) {
     case 1: return u.format1->covers (set_index, glyph_id);
     default:return false;
     }
   }

   inline bool sanitize (SANITIZE_ARG_DEF) {
     SANITIZE_DEBUG ();
     if (!SANITIZE (u.format)) return false;
     switch (u.format) {
     case 1: return u.format1->sanitize (SANITIZE_ARG);
     default:return true;
     }
   }

   private:
   union {
   USHORT		format;		/* Format identifier */
   MarkGlyphSetsFormat1	format1[];
   } u;
 };
 ASSERT_SIZE (MarkGlyphSets, 2);


 /*
  * GDEF
  */

 struct GDEF
 {
   static const hb_tag_t Tag	= HB_OT_TAG_GDEF;

   enum {
     UnclassifiedGlyph	= 0,
     BaseGlyph		= 1,
     LigatureGlyph	= 2,
     MarkGlyph		= 3,
     ComponentGlyph	= 4
   };

   STATIC_DEFINE_GET_FOR_DATA_CHECK_MAJOR_VERSION (GDEF, 1, 1);

   inline bool has_glyph_classes () const { return glyphClassDef != 0; }
   inline hb_ot_layout_class_t get_glyph_class (hb_codepoint_t glyph) const
   { return (this+glyphClassDef).get_class (glyph); }

   inline bool has_mark_attachment_types () const { return markAttachClassDef != 0; }
   inline hb_ot_layout_class_t get_mark_attachment_type (hb_codepoint_t glyph) const
   { return (this+markAttachClassDef).get_class (glyph); }

   inline bool has_attach_points () const { return attachList != 0; }
   inline bool get_attach_points (hb_codepoint_t glyph_id,
 				 unsigned int *point_count /* IN/OUT */,
 				 unsigned int *point_array /* OUT */) const
   { return (this+attachList).get_attach_points (glyph_id, point_count, point_array); }

   inline bool has_lig_carets () const { return ligCaretList != 0; }
   inline bool get_lig_carets (hb_ot_layout_context_t *context,
 			      hb_codepoint_t glyph_id,
 			      unsigned int *caret_count /* IN/OUT */,
 			      int *caret_array /* OUT */) const
   { return (this+ligCaretList).get_lig_carets (context, glyph_id, caret_count, caret_array); }

   inline bool has_mark_sets () const { return version >= 0x00010002 && markGlyphSetsDef[0] != 0; }
   inline bool mark_set_covers (unsigned int set_index, hb_codepoint_t glyph_id) const
   { return version >= 0x00010002 && (this+markGlyphSetsDef[0]).covers (set_index, glyph_id); }

   inline bool sanitize (SANITIZE_ARG_DEF) {
     SANITIZE_DEBUG ();
     if (!SANITIZE (version)) return false;
     if (version.major != 1) return true;
     return SANITIZE_THIS2 (glyphClassDef, attachList) &&
 	   SANITIZE_THIS2 (ligCaretList, markAttachClassDef) &&
 	   (version < 0x00010002 || SANITIZE_THIS (markGlyphSetsDef[0]));
   }

   private:
   FixedVersion	version;		/* Version of the GDEF table--currently
 					 * 0x00010002 */
   OffsetTo<ClassDef>
 		glyphClassDef;		/* Offset to class definition table
 					 * for glyph type--from beginning of
 					 * GDEF header (may be Null) */
   OffsetTo<AttachList>
 		attachList;		/* Offset to list of glyphs with
 					 * attachment points--from beginning
 					 * of GDEF header (may be Null) */
   OffsetTo<LigCaretList>
 		ligCaretList;		/* Offset to list of positioning points
 					 * for ligature carets--from beginning
 					 * of GDEF header (may be Null) */
   OffsetTo<ClassDef>
 		markAttachClassDef;	/* Offset to class definition table for
 					 * mark attachment type--from beginning
 					 * of GDEF header (may be Null) */
   OffsetTo<MarkGlyphSets>
 		markGlyphSetsDef[0];	/* Offset to the table of mark set
 					 * definitions--from beginning of GDEF
 					 * header (may be NULL).  Introduced
 					 * in version 00010002. */
 };
 ASSERT_SIZE (GDEF, 12);


 #endif /* HB_OT_LAYOUT_GDEF_PRIVATE_HH */
	/*
	* Copyright (C) 2007,2008,2009 Red Hat, Inc.
	*
	* This is part of HarfBuzz, an OpenType Layout engine library.
	*
	* Permission is hereby granted, without written agreement and without
	* license or royalty fees, to use, copy, modify, and distribute this
	* software and its documentation for any purpose, provided that the
	* above copyright notice and the following two paragraphs appear in
	* all copies of this software.
	*
	* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
	* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
	* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
	* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
	* DAMAGE.
	*
	* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
	* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
	* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
	* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
	* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
	*
	* Red Hat Author(s): Behdad Esfahbod
	*/

	#ifndef HB_OT_LAYOUT_GDEF_PRIVATE_HH
	#define HB_OT_LAYOUT_GDEF_PRIVATE_HH

	#include "hb-ot-layout-common-private.hh"

	#include "hb-font-private.h"


	/*
	* Attachment List Table
	*/

	typedef ArrayOf<USHORT> AttachPoint; /* Array of contour point indices--in
	* increasing numerical order */
	ASSERT_SIZE (AttachPoint, 2);

	struct AttachList
	{
	inline bool get_attach_points (hb_codepoint_t glyph_id,
	unsigned int point_count / IN/OUT */,
	unsigned int point_array / OUT */) const
	{
	unsigned int index = (this+coverage) (glyph_id);
	if (index == NOT_COVERED)
	{
	*point_count = 0;
	return false;
	}
	const AttachPoint &points = this+attachPoint[index];

	unsigned int count = MIN (points.len, *point_count);
	for (unsigned int i = 0; i < count; i++)
	point_array[i] = points[i];

	*point_count = points.len;

	return true;
	}

	inline bool sanitize (SANITIZE_ARG_DEF) {
	SANITIZE_DEBUG ();
	return SANITIZE_THIS2 (coverage, attachPoint);
	}

	private:
	OffsetTo<Coverage>
	coverage; /* Offset to Coverage table -- from
	* beginning of AttachList table */
	OffsetArrayOf<AttachPoint>
	attachPoint; /* Array of AttachPoint tables
	* in Coverage Index order */
	};
	ASSERT_SIZE (AttachList, 4);

	/*
	* Ligature Caret Table
	*/

	struct CaretValueFormat1
	{
	friend struct CaretValue;

	private:
	inline int get_caret_value (hb_ot_layout_context_t *context, hb_codepoint_t glyph_id) const
	{
	/* TODO vertical */
	return context->font->x_scale * coordinate / 0x10000;
	}

	inline bool sanitize (SANITIZE_ARG_DEF) {
	SANITIZE_DEBUG ();
	return SANITIZE_SELF ();
	}

	private:
	USHORT caretValueFormat; /* Format identifier--format = 1 */
	SHORT coordinate; /* X or Y value, in design units */
	};
	ASSERT_SIZE (CaretValueFormat1, 4);

	struct CaretValueFormat2
	{
	friend struct CaretValue;

	private:
	inline int get_caret_value (hb_ot_layout_context_t *context, hb_codepoint_t glyph_id) const
	{
	return /* TODO contour point */ 0;
	}

	inline bool sanitize (SANITIZE_ARG_DEF) {
	SANITIZE_DEBUG ();
	return SANITIZE_SELF ();
	}

	private:
	USHORT caretValueFormat; /* Format identifier--format = 2 */
	USHORT caretValuePoint; /* Contour point index on glyph */
	};
	ASSERT_SIZE (CaretValueFormat2, 4);

	struct CaretValueFormat3
	{
	friend struct CaretValue;

	inline int get_caret_value (hb_ot_layout_context_t *context, hb_codepoint_t glyph_id) const
	{
	/* TODO vertical */
	return context->font->x_scale * coordinate / 0x10000 +
	((this+deviceTable).get_delta (context->font->x_ppem) << 6);
	}

	inline bool sanitize (SANITIZE_ARG_DEF) {
	SANITIZE_DEBUG ();
	return SANITIZE_SELF () && SANITIZE_THIS (deviceTable);
	}

	private:
	USHORT caretValueFormat; /* Format identifier--format = 3 */
	SHORT coordinate; /* X or Y value, in design units */
	OffsetTo<Device>
	deviceTable; /* Offset to Device table for X or Y
	* value--from beginning of CaretValue
	* table */
	};
	ASSERT_SIZE (CaretValueFormat3, 6);

	struct CaretValue
	{
	inline int get_caret_value (hb_ot_layout_context_t *context, hb_codepoint_t glyph_id) const
	{
	switch (u.format) {
	case 1: return u.format1->get_caret_value (context, glyph_id);
	case 2: return u.format2->get_caret_value (context, glyph_id);
	case 3: return u.format3->get_caret_value (context, glyph_id);
	default:return 0;
	}
	}

	inline bool sanitize (SANITIZE_ARG_DEF) {
	SANITIZE_DEBUG ();
	if (!SANITIZE (u.format)) return false;
	switch (u.format) {
	case 1: return u.format1->sanitize (SANITIZE_ARG);
	case 2: return u.format2->sanitize (SANITIZE_ARG);
	case 3: return u.format3->sanitize (SANITIZE_ARG);
	default:return true;
	}
	}

	private:
	union {
	USHORT format; /* Format identifier */
	CaretValueFormat1 format1[];
	CaretValueFormat2 format2[];
	CaretValueFormat3 format3[];
	} u;
	};
	ASSERT_SIZE (CaretValue, 2);

	struct LigGlyph
	{
	inline void get_lig_carets (hb_ot_layout_context_t *context,
	hb_codepoint_t glyph_id,
	unsigned int caret_count / IN/OUT */,
	int caret_array / OUT */) const
	{

	unsigned int count = MIN (carets.len, *caret_count);
	for (unsigned int i = 0; i < count; i++)
	caret_array[i] = (this+carets[i]).get_caret_value (context, glyph_id);

	*caret_count = carets.len;
	}

	inline bool sanitize (SANITIZE_ARG_DEF) {
	SANITIZE_DEBUG ();
	return SANITIZE_THIS (carets);
	}

	private:
	OffsetArrayOf<CaretValue>
	carets; /* Offset array of CaretValue tables
	* --from beginning of LigGlyph table
	* --in increasing coordinate order */
	};
	ASSERT_SIZE (LigGlyph, 2);

	struct LigCaretList
	{
	inline bool get_lig_carets (hb_ot_layout_context_t *context,
	hb_codepoint_t glyph_id,
	unsigned int caret_count / IN/OUT */,
	int caret_array / OUT */) const
	{
	unsigned int index = (this+coverage) (glyph_id);
	if (index == NOT_COVERED)
	{
	*caret_count = 0;
	return false;
	}
	const LigGlyph &lig_glyph = this+ligGlyph[index];
	lig_glyph.get_lig_carets (context, glyph_id, caret_count, caret_array);
	return true;
	}

	inline bool sanitize (SANITIZE_ARG_DEF) {
	SANITIZE_DEBUG ();
	return SANITIZE_THIS2 (coverage, ligGlyph);
	}

	private:
	OffsetTo<Coverage>
	coverage; /* Offset to Coverage table--from
	* beginning of LigCaretList table */
	OffsetArrayOf<LigGlyph>
	ligGlyph; /* Array of LigGlyph tables
	* in Coverage Index order */
	};
	ASSERT_SIZE (LigCaretList, 4);


	struct MarkGlyphSetsFormat1
	{
	inline bool covers (unsigned int set_index, hb_codepoint_t glyph_id) const
	{ return (this+coverage[set_index]).get_coverage (glyph_id) != NOT_COVERED; }

	inline bool sanitize (SANITIZE_ARG_DEF) {
	SANITIZE_DEBUG ();
	return SANITIZE_THIS (coverage);
	}

	private:
	USHORT format; /* Format identifier--format = 1 */
	LongOffsetArrayOf<Coverage>
	coverage; /* Array of long offsets to mark set
	* coverage tables */
	};
	ASSERT_SIZE (MarkGlyphSetsFormat1, 4);

	struct MarkGlyphSets
	{
	inline bool covers (unsigned int set_index, hb_codepoint_t glyph_id) const
	{
	switch (u.format) {
	case 1: return u.format1->covers (set_index, glyph_id);
	default:return false;
	}
	}

	inline bool sanitize (SANITIZE_ARG_DEF) {
	SANITIZE_DEBUG ();
	if (!SANITIZE (u.format)) return false;
	switch (u.format) {
	case 1: return u.format1->sanitize (SANITIZE_ARG);
	default:return true;
	}
	}

	private:
	union {
	USHORT format; /* Format identifier */
	MarkGlyphSetsFormat1 format1[];
	} u;
	};
	ASSERT_SIZE (MarkGlyphSets, 2);


	/*
	* GDEF
	*/

	struct GDEF
	{
	static const hb_tag_t Tag = HB_OT_TAG_GDEF;

	enum {
	UnclassifiedGlyph = 0,
	BaseGlyph = 1,
	LigatureGlyph = 2,
	MarkGlyph = 3,
	ComponentGlyph = 4
	};

	STATIC_DEFINE_GET_FOR_DATA_CHECK_MAJOR_VERSION (GDEF, 1, 1);

	inline bool has_glyph_classes () const { return glyphClassDef != 0; }
	inline hb_ot_layout_class_t get_glyph_class (hb_codepoint_t glyph) const
	{ return (this+glyphClassDef).get_class (glyph); }

	inline bool has_mark_attachment_types () const { return markAttachClassDef != 0; }
	inline hb_ot_layout_class_t get_mark_attachment_type (hb_codepoint_t glyph) const
	{ return (this+markAttachClassDef).get_class (glyph); }

	inline bool has_attach_points () const { return attachList != 0; }
	inline bool get_attach_points (hb_codepoint_t glyph_id,
	unsigned int point_count / IN/OUT */,
	unsigned int point_array / OUT */) const
	{ return (this+attachList).get_attach_points (glyph_id, point_count, point_array); }

	inline bool has_lig_carets () const { return ligCaretList != 0; }
	inline bool get_lig_carets (hb_ot_layout_context_t *context,
	hb_codepoint_t glyph_id,
	unsigned int caret_count / IN/OUT */,
	int caret_array / OUT */) const
	{ return (this+ligCaretList).get_lig_carets (context, glyph_id, caret_count, caret_array); }

	inline bool has_mark_sets () const { return version >= 0x00010002 && markGlyphSetsDef[0] != 0; }
	inline bool mark_set_covers (unsigned int set_index, hb_codepoint_t glyph_id) const
	{ return version >= 0x00010002 && (this+markGlyphSetsDef[0]).covers (set_index, glyph_id); }

	inline bool sanitize (SANITIZE_ARG_DEF) {
	SANITIZE_DEBUG ();
	if (!SANITIZE (version)) return false;
	if (version.major != 1) return true;
	return SANITIZE_THIS2 (glyphClassDef, attachList) &&
	SANITIZE_THIS2 (ligCaretList, markAttachClassDef) &&
	(version < 0x00010002 \|\| SANITIZE_THIS (markGlyphSetsDef[0]));
	}

	private:
	FixedVersion version; /* Version of the GDEF table--currently
	* 0x00010002 */
	OffsetTo<ClassDef>
	glyphClassDef; /* Offset to class definition table
	* for glyph type--from beginning of
	* GDEF header (may be Null) */
	OffsetTo<AttachList>
	attachList; /* Offset to list of glyphs with
	* attachment points--from beginning
	* of GDEF header (may be Null) */
	OffsetTo<LigCaretList>
	ligCaretList; /* Offset to list of positioning points
	* for ligature carets--from beginning
	* of GDEF header (may be Null) */
	OffsetTo<ClassDef>
	markAttachClassDef; /* Offset to class definition table for
	* mark attachment type--from beginning
	* of GDEF header (may be Null) */
	OffsetTo<MarkGlyphSets>
	markGlyphSetsDef[0]; /* Offset to the table of mark set
	* definitions--from beginning of GDEF
	* header (may be NULL). Introduced
	* in version 00010002. */
	};
	ASSERT_SIZE (GDEF, 12);


	#endif /* HB_OT_LAYOUT_GDEF_PRIVATE_HH */