提交 f748e116 编写于 作者: E Elie Roux

bootstraping structure

上级 70202983
......@@ -68,6 +68,7 @@ HB_NODIST_headers = \
HB_FALLBACK_sources = hb-fallback-shape.cc
HB_OT_sources = \
hb-ot-base-table.hh \
hb-ot-font.cc \
hb-ot-layout.cc \
hb-ot-layout-common-private.hh \
......
/*
* Copyright © 2016 Elie Roux <elie.roux@telecom-bretagne.eu>
*
* This is part of HarfBuzz, a text shaping 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.
*
*/
#ifndef HB_OT_BASE_TABLE_HH
#define HB_OT_BASE_TABLE_HH
#include "hb-open-type-private.hh"
#include "hb-ot-layout-common-private.hh"
#define HB_OT_TAG_BASE HB_TAG('B','A','S','E')
// https://www.microsoft.com/typography/otspec/baselinetags.htm
#define HB_OT_TAG_BASE_HANG HB_TAG('h','a','n','g')
#define HB_OT_TAG_BASE_ICFB HB_TAG('i','c','f','b')
#define HB_OT_TAG_BASE_ICFT HB_TAG('i','c','f','t')
#define HB_OT_TAG_BASE_IDEO HB_TAG('i','d','e','o')
#define HB_OT_TAG_BASE_IDTB HB_TAG('i','d','t','b')
#define HB_OT_TAG_BASE_MATH HB_TAG('m','a','t','h')
#define HB_OT_TAG_BASE_ROMN HB_TAG('r','o','m','n')
namespace OT {
/*
* BASE -- The BASE Table
*/
struct BaseCoordFormat1 {
protected:
USHORT baseCoordFormat;
SHORT coordinate;
public:
DEFINE_SIZE_STATIC (4);
};
struct BaseCoordFormat2 {
protected:
USHORT baseCoordFormat;
SHORT coordinate;
USHORT referenceGlyph;
USHORT baseCoordPoint;
public:
DEFINE_SIZE_STATIC (8);
};
struct BaseCoordFormat3 {
protected:
USHORT baseCoordFormat;
SHORT coordinate;
OffsetTo<Device> deviceTable;
public:
DEFINE_SIZE_STATIC (6);
};
struct BaseCoord {
protected:
union {
USHORT baseCoordFormat;
BaseCoordFormat1 format1;
BaseCoordFormat2 format2;
BaseCoordFormat3 format3;
} u;
public:
DEFINE_SIZE_MIN (4);
};
struct FeatMinMaxRecord {
protected:
Tag featureTableTag;
OffsetTo<BaseCoord> minCoord;
OffsetTo<BaseCoord> maxCoord;
public:
DEFINE_SIZE_STATIC (8);
};
struct MinMaxTable {
protected:
OffsetTo<BaseCoord> minCoord;
OffsetTo<BaseCoord> maxCoord;
USHORT featMinMaxCount;
ArrayOf<FeatMinMaxRecord> featMinMaxRecordTable;
public:
DEFINE_SIZE_ARRAY (6, featMinMaxRecordTable);
};
struct BaseLangSysRecord {
protected:
Tag baseLangSysTag;
OffsetTo<MinMaxTable> minMax;
public:
DEFINE_SIZE_STATIC (6);
};
struct BaseValuesTable {
protected:
USHORT defaultIndex;
USHORT baseCoordCount;
ArrayOf<BaseCoord> baseCoordTable;
public:
DEFINE_SIZE_ARRAY (4, baseCoordTable);
};
struct BaseScriptTable {
protected:
OffsetTo<BaseValuesTable> baseValues;
OffsetTo<MinMaxTable> defaultMinMax;
USHORT baseLangSysCount;
ArrayOf<BaseLangSysRecord> baseLangSysRecordTable;
public:
DEFINE_SIZE_ARRAY (6, baseLangSysRecordTable);
};
struct BaseScriptRecord {
protected:
Tag baseScriptTag;
OffsetTo<BaseScriptTable> baseScript;
public:
DEFINE_SIZE_STATIC (4);
};
struct BaseScriptList {
protected:
USHORT baseScriptCount;
ArrayOf<BaseScriptRecord> baseScriptRecordTable;
public:
DEFINE_SIZE_ARRAY (2, baseScriptRecordTable);
};
struct BaselineTag {
protected:
Tag tag;
public:
DEFINE_SIZE_STATIC (4);
};
struct BaseTagList
{
protected:
USHORT baseTagCount;
ArrayOf<BaselineTag> BaseTagListTable;
public:
DEFINE_SIZE_STATIC (4);
};
struct VertAxis
{
protected:
OffsetTo<BaseTagList> baseTagList;
OffsetTo<BaseScriptList> baseScriptList;
public:
DEFINE_SIZE_STATIC (4);
};
struct HorizAxis
{
protected:
OffsetTo<HorizAxis> baseTagList;
OffsetTo<VertAxis> baseScriptList;
public:
DEFINE_SIZE_STATIC (4);
};
struct BASE
{
static const hb_tag_t tableTag = HB_OT_TAG_BASE;
inline bool sanitize (hb_sanitize_context_t *c) const
{
TRACE_SANITIZE (this);
return_trace (version.sanitize (c) &&
likely (version.major == 1));
}
protected:
FixedVersion<>version; /* Version of the BASE table: 1.0 or 1.1 */
OffsetTo<HorizAxis> horizAxis;
OffsetTo<VertAxis> vertAxis;
//LOffsetTo<ItemVarStore> itemVarStore;
public:
DEFINE_SIZE_MIN (6);
};
} /* namespace OT */
#endif /* HB_OT_BASE_TABLE_HH */
......@@ -30,6 +30,7 @@
#include "hb-font-private.hh"
#include "hb-ot-base-table.hh"
#include "hb-ot-cmap-table.hh"
#include "hb-ot-cbdt-table.hh"
#include "hb-ot-glyf-table.hh"
......
......@@ -122,6 +122,7 @@ hb_ot_layout_position_finish_offsets (hb_font_t *font,
*/
namespace OT {
struct BASE;
struct GDEF;
struct GSUB;
struct GPOS;
......@@ -162,6 +163,7 @@ struct hb_ot_layout_t
const struct OT::GPOS *gpos;
/* TODO Move the following out of this struct. */
OT::hb_lazy_table_loader_t<struct OT::BASE> base;
OT::hb_lazy_table_loader_t<struct OT::MATH> math;
OT::hb_lazy_table_loader_t<struct OT::fvar> fvar;
OT::hb_lazy_table_loader_t<struct OT::avar> avar;
......
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