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|
(*******************************************************************
*
* TTTables.Pas 1.2
*
* TrueType Tables declarations
*
* Copyright 1996 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.
*
*
* Difference between 1.1 and 1.2 :
*
* - TTTables now only contains the declarations of the
* TrueType tables.
*
* - Instance, Resident and Execution context declarations
* were moved to TTObjs
*
* - Tables loaders were moved to the new TTLoad component
*
******************************************************************)
Unit TTTables;
interface
uses TTTypes;
(***************************************************************************)
(* *)
(* TrueType Table Types *)
(* *)
(***************************************************************************)
type
(* TrueType collection header *)
PTTCHeader = ^TTTCHeader;
TTTCHeader = record
Tag : Long;
version : TT_Fixed;
DirCount : ULong;
TableDirectory : PStorage;
end;
(* TrueType Table Directory type *)
PTableDir = ^TTableDir;
TTableDir = Record
version : TT_Fixed; (* should be $10000 *)
numTables : UShort; (* Tables number *)
searchRange, (* These parameters are only used *)
entrySelector, (* for a dichotomy search in the *)
rangeShift : UShort; (* directory. We ignore them *)
end;
(* The 'TableDir' is followed by 'numTables' TableDirEntries *)
TTableDirEntry = Record
Tag : Long; (* table type *)
CheckSum : Long; (* table Checksum *)
Offset : Long; (* Table file offset *)
Length : Long; (* Table length *)
end;
TTableDirEntries = array[0..100] of TTableDirEntry;
PTableDirEntries = ^TTableDirEntries;
(* 'cmap' tables *)
TCMapDir = record
tableVersionNumber : UShort;
numCMaps : UShort;
end;
TCMapDirEntry = record
platformID : UShort;
platformEncodingID : UShort;
offset : Long;
end;
TCMapDirEntries = array[0..10] of TCMapDirEntry;
PCMapDirEntries = ^TCMapDirEntries;
(* table "maxp" of Maximum Profiles' *)
TMaxProfile = Record
Version : TT_Fixed;
numGlyphs,
maxPoints,
maxContours,
maxCompositePoints,
maxCompositeContours,
maxZones,
maxTwilightPoints,
maxStorage,
maxFunctionDefs,
maxInstructionDefs,
maxStackElements,
maxSizeOfInstructions,
maxComponentElements,
maxComponentDepth : UShort;
end;
(* table "gasp" *)
const
Gasp_GridFit = 1;
Gasp_DoGray = 2;
type
TGaspRange = record
maxPPEM : UShort;
gaspFlag : UShort;
end;
TGaspRanges = array[0..9] of TGaspRange;
PGaspRanges = ^TGaspRanges;
TGasp = record
version : UShort;
numRanges : UShort;
gaspRanges : PGaspRanges;
end;
(* table "HMTX" *)
TLongMetrics = record
advance : UShort;
bearing : Short;
end;
TTableLongMetrics = array[0..255] of TLongMetrics;
PTableLongMetrics = ^TTableLongMetrics;
TShortMetrics = Short;
TTableShortMetrics = array[0..255] of TShortMetrics;
PTableShortMetrics = ^TTableShortMetrics;
{
(* table "OS/2" *)
TOS2_Table = record
version : UShort; (* $0001 *)
xAvgCharWidth : Short;
usWeightClass : UShort;
usWidthClass : UShort;
fsType : Short;
ySubscriptXSize : Short;
ySubscriptYSize : Short;
ySubScriptXOffset : Short;
ySubscriptYOffset : Short;
ySuperscriptXSize : Short;
ySuperscriptYSize : Short;
ySuperscriptXOffset : Short;
ySuperscriptYOffset : Short;
yStrikeoutSize : Short;
yStrikeoutPosition : Short;
sFamilyClass : Short;
panose : array[0..9] of Byte;
ulUnicodeRange1 : ULong; (* bits 0-31 *)
ulUnicodeRange2 : ULong; (* bits 32-63 *)
ulUnicodeRange3 : ULong; (* bits 64-95 *)
ulUnicodeRange4 : ULong; (* bits 96-127 *)
achVendID : array[0..3] of Byte;
fsSelection : UShort;
usFirstCharIndex : UShort;
usLastCharIndex : UShort;
sTypoAscender : UShort;
sTypoDescender : UShort;
sTypoLineGap : UShort;
usWinAscent : UShort;
usWinDescent : UShort;
(* only version 1 tables *)
ulCodePageRange1 : ULong;
ulCodePageRange2 : ULong;
end;
(* table "post" *)
TPostscript = record
FormatType : TT_Fixed;
italicAngle : TT_Fixed;
underlinePosition : Short;
underlineThickness : Short;
isFixedPitch : ULong;
minMemType42 : ULong;
maxMemType42 : ULong;
minMemType1 : ULong;
maxMemType1 : ULong;
end;
}
(* table "name" *)
(* table "name" *)
TName_Record = record
platformID : UShort;
encodingID : UShort;
languageID : UShort;
nameID : UShort;
length : UShort;
offset : UShort;
end;
PName_Record = ^TName_Record;
TName_Records = array[0..0] of TName_Record;
PName_Records = ^TName_Records;
PName_Table = ^TName_Table;
TName_Table = record
format : UShort;
numNameRecords : UShort;
storageOffset : UShort;
names : PName_Records;
storage : PByte;
end;
PHdmx_Record = ^THdmx_Record;
THdmx_Record = record
ppem : Byte;
max_width : Byte;
widths : PByte;
end;
THdmx_Records = array[0..19] of THdmx_Record;
PHdmx_Records = ^THdmx_Records;
THdmx = record
version : UShort;
num_records : Short;
records : PHdmx_Records;
end;
implementation
end.
|
