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/****************************************************************************\
Part of the XeTeX typesetting system
copyright (c) 1994-2008 by SIL International
copyright (c) 2009 by Jonathan Kew
Written by Jonathan Kew
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE
FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Except as contained in this notice, the name of the copyright holders
shall not be used in advertising or otherwise to promote the sale,
use or other dealings in this Software without prior written
authorization from the copyright holders.
\****************************************************************************/
/* from ICU sample code, extended by JK for XeTeX */
/***************************************************************************
*
* Copyright (C) 1998-2002, International Business Machines
* Corporation and others. All Rights Reserved.
*
************************************************************************/
#ifndef __SFNT_H
#define __SFNT_H
#include "layout/LETypes.h"
#ifndef ANY_NUMBER
#define ANY_NUMBER 1
#endif
struct DirectoryEntry
{
le_uint32 tag;
le_uint32 checksum;
le_uint32 offset;
le_uint32 length;
};
struct SFNTDirectory
{
le_uint32 scalerType;
le_uint16 numTables;
le_uint16 searchRange;
le_uint16 entrySelector;
le_uint16 rangeShift;
DirectoryEntry tableDirectory[ANY_NUMBER];
};
struct CMAPEncodingSubtableHeader
{
le_uint16 platformID;
le_uint16 platformSpecificID;
le_uint32 encodingOffset;
};
struct CMAPTable
{
le_uint16 version;
le_uint16 numberSubtables;
CMAPEncodingSubtableHeader encodingSubtableHeaders[ANY_NUMBER];
};
struct CMAPEncodingSubtable
{
le_uint16 format;
le_uint16 length;
le_uint16 language;
};
struct CMAPFormat0Encoding : CMAPEncodingSubtable
{
le_uint8 glyphIndexArray[256];
};
struct CMAPFormat2Subheader
{
le_uint16 firstCode;
le_uint16 entryCount;
le_int16 idDelta;
le_uint16 idRangeOffset;
};
struct CMAPFormat2Encoding : CMAPEncodingSubtable
{
le_uint16 subHeadKeys[256];
CMAPFormat2Subheader subheaders[ANY_NUMBER];
};
struct CMAPFormat4Encoding : CMAPEncodingSubtable
{
le_uint16 segCountX2;
le_uint16 searchRange;
le_uint16 entrySelector;
le_uint16 rangeShift;
le_uint16 endCodes[ANY_NUMBER];
// le_uint16 reservedPad;
// le_uint16 startCodes[ANY_NUMBER];
// le_uint16 idDelta[ANY_NUMBER];
// le_uint16 idRangeOffset[ANY_NUMBER];
// le_uint16 glyphIndexArray[ANY_NUMBER];
};
struct CMAPFormat6Encoding : CMAPEncodingSubtable
{
le_uint16 firstCode;
le_uint16 entryCount;
le_uint16 glyphIndexArray[ANY_NUMBER];
};
struct CMAPEncodingSubtable32
{
le_uint16 format;
le_uint16 reserved;
le_uint32 length;
le_uint32 language;
};
struct CMAPGroup
{
le_uint32 startCharCode;
le_uint32 endCharCode;
le_uint32 startGlyphCode;
};
struct CMAPFormat8Encoding : CMAPEncodingSubtable32
{
le_uint32 is32[65536/32];
le_uint32 nGroups;
CMAPGroup groups[ANY_NUMBER];
};
struct CMAPFormat10Encoding : CMAPEncodingSubtable32
{
le_uint32 startCharCode;
le_uint32 numCharCodes;
le_uint16 glyphs[ANY_NUMBER];
};
struct CMAPFormat12Encoding : CMAPEncodingSubtable32
{
le_uint32 nGroups;
CMAPGroup groups[ANY_NUMBER];
};
typedef le_int32 fixed;
struct BigDate
{
le_uint32 bc;
le_uint32 ad;
};
struct HEADTable
{
fixed version;
fixed fontRevision;
le_uint32 checksumAdjustment;
le_uint32 magicNumber;
le_uint16 flags;
le_uint16 unitsPerEm;
BigDate created;
BigDate modified;
le_int16 xMin;
le_int16 yMin;
le_int16 xMax;
le_int16 yMax;
le_uint16 macStyle;
le_uint16 lowestRecPPEM;
le_int16 fontDirectionHint;
le_int16 indexToLocFormat;
le_int16 glyphDataFormat;
};
struct MAXPTable
{
fixed version;
le_uint16 numGlyphs;
le_uint16 maxPoints;
le_uint16 maxContours;
le_uint16 maxComponentPoints;
le_uint16 maxComponentContours;
le_uint16 maxZones;
le_uint16 maxTwilightPoints;
le_uint16 maxStorage;
le_uint16 maxFunctionDefs;
le_uint16 maxInstructionDefs;
le_uint16 maxStackElements;
le_uint16 maxSizeOfInstructions;
le_uint16 maxComponentElements;
le_uint16 maxComponentDepth;
};
struct HHEATable
{
fixed version;
le_int16 ascent;
le_int16 descent;
le_int16 lineGap;
le_uint16 advanceWidthMax;
le_int16 minLeftSideBearing;
le_int16 minRightSideBearing;
le_int16 xMaxExtent;
le_int16 caretSlopeRise;
le_int16 caretSlopeRun;
le_int16 caretOffset;
le_int16 reserved1;
le_int16 reserved2;
le_int16 reserved3;
le_int16 reserved4;
le_int16 metricDataFormat;
le_uint16 numOfLongHorMetrics;
};
struct LongHorMetric
{
le_uint16 advanceWidth;
le_int16 leftSideBearing;
};
struct HMTXTable
{
LongHorMetric hMetrics[ANY_NUMBER]; // ANY_NUMBER = numOfLongHorMetrics from hhea table
// le_int16 leftSideBearing[ANY_NUMBER]; // ANY_NUMBER = numGlyphs - numOfLongHorMetrics
};
struct POSTTable
{
fixed version;
fixed italicAngle;
le_int16 underlinePosition;
le_uint16 underlineThickness;
le_uint32 isFixedPitch;
le_uint32 minMemType42;
le_uint32 maxMemType42;
le_uint32 minMemType1;
le_uint32 maxMemType1;
};
struct OS2TableHeader {
le_uint16 version;
le_int16 xAvgCharWidth;
le_uint16 usWeightClass;
le_uint16 usWidthClass;
le_int16 fsType;
le_int16 ySubscriptXSize;
le_int16 ySubscriptYSize;
le_int16 ySubscriptXOffset;
le_int16 ySubscriptYOffset;
le_int16 ySuperscriptXSize;
le_int16 ySuperscriptYSize;
le_int16 ySuperscriptXOffset;
le_int16 ySuperscriptYOffset;
le_int16 yStrikeoutSize;
le_int16 yStrikeoutPosition;
le_int16 sFamilyClass;
le_uint8 panose[10];
le_uint8 ulCharRange[16]; // spec'd as 4 longs, but do this to keep structure packed
le_int8 achVendID[4];
le_uint16 fsSelection;
le_uint16 fsFirstCharIndex;
le_uint16 fsLastCharIndex;
};
#endif
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