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437 lines
17 KiB
Plaintext
437 lines
17 KiB
Plaintext
;
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; File: fontPrivate.a
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;
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; Contains: All particular spline definitions needed for the spline package.
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;
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; Written by: Charlton E. Lui
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;
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; Copyright: © 1989-1992 by Apple Computer, Inc., all rights reserved.
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;
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; Change History (most recent first):
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;
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; <29> 9/2/92 DTY Convert those damned incremental labels into records.
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; <28> 7/9/92 DTY This file got corrupted somehow. Fix it back up from version
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; <26> and redo last change.
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; <27> 7/9/92 DTY #1035445: Increased partial zone size to 10K.
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; <26> 7/4/92 DTY #1034875 <csd>: Define 5K size of base systemÕs partial font
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; zone here.
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; <25> 5/4/92 DTY There really was a good reason for me to stick fondCache in the
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; middle of SplineKey, honest! But since I donÕt remember what it
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; is, IÕm moving it to the end of the structure to keep existing
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; offsets the same.
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; <24> 3/9/92 DTY Add macros for new selectors for InitializePartialFonts and
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; InitializeDiskCache.
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; <23> 1/22/92 DTY Take the synFOND field out of the synthetic strike table
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; structure. WeÕre gauranteeing unique font IDs, so this extra
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; differentiation wonÕt be necessary.
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; <22> 11/15/91 DTY Remember which resource map a font was loaded from. Added the
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; synFOND field to the synEntry record. (If it turns out the
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; developers are looking at these records, this information will
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; probably have to be moved.)
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; <21> 10/11/91 DTY Building the candidate FOND list takes too long. Cache two lists
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; in SplineKey.
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; <20> 9/25/91 jlf Added fSplineDirectory to widthTable definition. Replaced
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; glyphCount and glyphLimit with fEncodingTablePointer,
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; fScriptNumber, and fLongPad in the sb_CacheHead definition.
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; Added spline key globals for partial font, disk caching,
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; and doublebyte support. Added KeepSplineOnDisk field to
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; width table structure.
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; <19> 8/22/91 JSM Clean up header.
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; <18> 1/30/91 gbm sab, #38: Change the Ôalready including this fileÕ variable to
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; all uppercase (for security reasons)
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; <17> 1/9/91 RB (CEL/PKE/GM/DA) Added in safeCount variable to splineKey globals
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; to fix the long string bug caused in stdtxmeas overflow.
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; <16> 12/18/90 MR [ph] Add IsSpline macro for BassPatches.a
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; <15> 10/30/90 CL (MR)Adding fs_LowestPPEM macro.
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; <14> 10/22/90 CL (BKR)Adding support for minimum memory mode to band and run in
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; low memory cache conditions.
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; <12> 10/10/90 CL Adding sb_PreFlightFontMem selector.
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; <11> 10/8/90 CL Adding loadSpline flag to the widthTable.
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; <10> 10/8/90 CL Fixing up the splinekey vGrowZone variable. This accidently got
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; placed over the tempWidthHand.
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; <9> 10/1/90 CL Adding in memoryPatch vector for memory manager fix on the
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; growzone.
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; <8> 9/24/90 CL Adding the fmAscent, fmDescent, fmWidmax, fmLeading fields to
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; the cache.
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; <7> 9/13/90 CL Taking out unused variables in the caching records.
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; Cleaned up splinekeyRecÉ Added in heap defines into splineKey.
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; <6> 8/29/90 CL Added the cache zone to splinekey. Added mfExists flag.
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; <5> 8/28/90 MR Add bitmapzone to splinekey
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; <4> 8/20/90 MR Add fsWorkZone to record which zone the work handle is allocated
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; in.
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; <3> 7/20/90 gbm Stopped redefining all of the width table, so the assembler
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; won't complain
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; <2> 7/16/90 CL Adding glyph data structure. Added clean up vector in splinekey.
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; <1> 6/22/90 CL first checked in
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; <6+> 6/20/90 CL Used to be SplineDefines.a.
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; <6> 5/29/90 CL Took out width table references to the cache handles.
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; <5> 5/3/90 CL Got rid of old comments. may have added support for extra memory
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; area.
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; <4> 4/10/90 CL Added support for double byte codes. Worked on disk caching.
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; <3> 3/20/90 CL support for tag format
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; <2> 2/27/90 CL suppport for DrTextÕs optimizations
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; <1.9> 11/14/89 CEL Adding Device left side bearing.
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; <1.8> 9/15/89 CEL Added flag to turn on debugging from macsbug.
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; <1.7> 8/28/89 CEL Updated splinekey to match c defines.
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; <1.6> 8/14/89 CEL Added memory macros. Added in encrytion var in width table.
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; Added splineKeyRec.
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; <1.5> 8/1/89 CEL Conditionalized the Debug Macro. Used assembly records for
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; structures that are passed between Drtext and buffer code. Added
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; NewTempHandle, NewTempBuffer, NewDisposeHandle macros.
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; <1.4> 6/10/89 CEL Moved Private.a QuickDraw Equates into proper QuickDraw private
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; file (colorequ.a), got rid of QuickDraw nFiles dependencies and
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; fixed up necessary filesÉ
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; <1.3> 6/2/89 CEL Changed translate24To32 trap address so we can worked with
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; 32-bit QD once more
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; <1.2> 5/26/89 CEL Integrated the new Font Scaler 1.0 into Spline Fonts
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; <¥1.1> 5/3/89 CEL All kinks worked out, Blasting in bass filesÉ
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; <1.0> 5/2/89 CEL Rolling in bass for the first timeÉ
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;
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;ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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BLANKS ON
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STRING PASCAL
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;ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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; Spline Data Structures
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;ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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splinePreferred EQU 5
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preserveGlyph EQU 4
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kMinimalPartialFontZoneSize equ 10 * 1024 ; <26> A minimal partial font zone for the base system
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;ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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; SplineKey Struct
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;ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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; IF CHANGE in c-def
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; Update this definition
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;
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;
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splineKeyRec RECORD 0
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callDebug DS.L 1 ; Set if debugging is on
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vFontCache DS.L 1 ; Dispatch table for QuickDraw caching
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vFontScaler DS.L 1 ; Dispatch table for QuickDraw caching
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bitmapHand DS.L 1 ; Bitmap Handle - Number 5 in Font Scaler
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bitmapZone DS.L 1 ; Zone the bitmapHand is allocated in <5>
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cacheListHandle DS.L 1 ; List of Cache Handles
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cacheHand DS.L 1 ; Handle to cache hand
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cacheZone DS.L 1 ; zone the cache lives in
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cachePlace DS.W 1 ; zone the cache lives in
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fontCount DS.W 1 ; Set to Zero on increment each time a new cache exists
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curAppZone DS.L 1 ; current application zone
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sysFull DS.B 1 ; system is full
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appFull DS.B 1 ; app is full
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useHeap DS.B 1 ; which heap to use
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mfExists DS.B 1 ; flags whether multiFinder exists
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glyphID DS.W 1 ; last glyph id
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is32Bit DS.B 1 ; does 32bit QD exist
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squashed DS.B 1 ; are we squashing the cache
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strikeID DS.W 1 ; check if still same sfnt
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ptSize DS.W 1 ; Check Point Size the same
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device DS.W 1 ; check Device resolution the same
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face DS.W 1 ; check Face the same
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trans00 DS.L 1 ; x trans
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trans11 DS.L 1 ; y trans
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trans10 DS.L 1 ; skew
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tempWidthHand DS.L 1 ; Used temporarily to get printer widths
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vGrowZone DS.L 1 ; vector for growzone patch
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safeCount DS.W 1 ; safe count in case of length overflow
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EXTRAWORD DS.W 1
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; *******FONT SCALER MEMORY*******
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fsWorkHand DS.L 1 ; work area for spline data
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fsWorkZone DS.L 1 ; zone for the work handle <4>
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inPtr DS.L 1 ; pointer to input struct
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outPtr DS.L 1 ; pointer to info struct
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inputOffset DS.L 1 ; Constant memory
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infoOffset DS.L 1 ; Constant memory
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globalOffset0 DS.L 1 ; Constant memory
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globalOffset1 DS.L 1 ; Constant memory
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globalOffset2 DS.L 1 ; Constant memory
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sfntDataOffset3 DS.L 1 ; Variable size memory
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sfntDataOffset4 DS.L 1 ; Variable size memory
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rowArrayOffset6 DS.L 1 ; Variable size memory
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columnArrayOffset7 DS.L 1 ; Variable size memory
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fPartialFontzone DS.L 1 ; zone for partial font fragments
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fFragmentTableCache DS.L 1 ; list of fragment tables
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fLastSwapFontFamilyID DS.W 1 ; FMInput family id passed in at last SwapFont call
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fDiskCacheMap DS.L 1 ; Handle to the disk cache
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fResourceManagerPurgeProcedure DS.L 1 ; address of resource manager purge procedure
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fInPurgeProcedure DS.B 1 ; true if currently in our purge procedure
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fFontCacheExists DS.B 1 ; true if font cache exists.
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lastFontMap ds.w 1 ; Resource map last font was loaded from
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fondCache ds.l 2 ; Cache for candidate FOND list
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splineKeySize equ * ; size for this version
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ENDR
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;ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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;ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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; GlyphData Struct
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;ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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; IF CHANGE in c-def
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; Update this definition
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;
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glyph RECORD 0
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yMin DS.W 1 ; Y min off baseline
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yMax DS.W 1 ; Y max off baseline
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lsb DS.L 1 ; Left side bearing Fixed
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devLSB DS.W 1 ; Device Left side bearing
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adjustTop DS.W 1 ; Adjust this char from ascent
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rError DS.W 1 ; set if Render error occurs
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bitWidth DS.W 1 ; glyph bit width
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byteWidth DS.L 1 ; row bytes of character
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xMin DS.W 1 ; Save xMin and also use to calc xMax
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scan DS.W 1 ; # of scan lines
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wasteBytes DS.W 1 ; not needed for bitmap but needed for scan converter
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glyphID DS.W 1 ; id of glyph
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cacheData DS.L 1 ; Start of destination bits buffer
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ENDR
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;ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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;ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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; sb_CacheHead
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;ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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; IF CHANGE in c-def
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; Update this definition
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;
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cache RECORD 0
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StrikeID DS.W 1 ; id of sfnt
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ptSize DS.W 1 ; point size
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face DS.W 1 ; style of request
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newEntries DS.W 1 ; Number of new entries added
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trans00 DS.L 1 ; x trans
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trans11 DS.L 1 ; y trans
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trans10 DS.L 1 ; skew
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ascent DS.L 1 ;(fixed) Ascent of Font
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descent DS.L 1 ;(fixed) Descent of Font
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widMax DS.L 1 ;(fixed) Maximum Width
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leading DS.L 1 ;(fixed) Leading of Font
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lOverHMax DS.L 1 ;(fixed) Left Over Hang Max
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rOverHMax DS.L 1 ;(fixed) Right Over Hang Max
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yMax DS.L 1 ;(fixed) YMax
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yMin DS.L 1 ;(fixed) YMin
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height DS.W 1 ;(word) Height
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filler DS.W 1 ;(word) Height
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rightItalic DS.L 1 ;(fixed width italic slope)
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leftItalic DS.L 1 ;(fixed width italic slope)
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fmAscent DS.B 1 ; FMOutput ascent
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fmDescent DS.B 1 ; FMOutput descent
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fmWidmax DS.B 1 ; FMOutput widmax
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fmLeading DS.B 1 ; FMOutput leading
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addEntryOffset DS.L 1 ; Offset to next spot to add
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bitsCached DS.B 1 ; Set if bitmaps are cached
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squashed DS.B 1 ; set if the cache is squashed
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familyID DS.W 1 ; Family id for international checks
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fEncodingTablePointer DS.L 1 ; pointer to double byte encoding table or nil for single byte scripts
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fScriptNumber DS.W 1 ; script associated with this cache
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fLongPad DS.W 1 ; long align fields
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glyphArray DS.L 1 ; Array of offsets starts here
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ENDR
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;ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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;ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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; ERROR CODES
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;ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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BITFONT_ERR EQU $8099
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NO_CACHE_ERROR EQU $00C0
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;ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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; SELECTOR MACROS
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;ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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; TRAP chummings
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;ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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_SplineMgr OPWORD $A854
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;ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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; Selectors
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;ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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sbIsOutline EQU $0000
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sbKillSomeCaches EQU $0002
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sbRetrieveGlyph EQU $0004
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sbFillWidthTab EQU $0005
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sbSearchForCache EQU $0006
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sbPreFlightFontMem EQU $0007
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sbFlushFonts EQU $000C
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fsLowestPPEM EQU $000e
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selectInitializePartialFonts equ $000F ; <24>
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selectInitializediskCache equ $0010 ; <24>
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;ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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; Macros
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;ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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MACRO
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_sbIsOutline
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IMPORT SplineMgr
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MOVEQ #sbIsOutline,D0
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_SplineMgr
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ENDM
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MACRO
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_sbRetrieveGlyph
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IMPORT SplineMgr
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MOVEQ #sbRetrieveGlyph,D0
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_SplineMgr
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ENDM
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MACRO
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_sbKillSomeCaches
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IMPORT SplineMgr
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MOVEQ #sbKillSomeCaches,D0
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_SplineMgr
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ENDM
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MACRO
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_sbFillWidthTab
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IMPORT SplineMgr
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MOVEQ #sbFillWidthTab,D0
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_SplineMgr
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ENDM
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MACRO
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_sbResetWorkSpace
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IMPORT SplineMgr
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MOVEQ #sbResetWorkSpace,D0
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_SplineMgr
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ENDM
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MACRO
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_sbInitMemory
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IMPORT SplineMgr
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MOVEQ #sbInitMemory,D0
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_SplineMgr
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ENDM
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MACRO
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_sbSetFontState
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IMPORT SplineMgr
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MOVEQ #sbSetFontState,D0
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_SplineMgr
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ENDM
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MACRO
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_sbSearchForCache
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IMPORT SplineMgr
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MOVEQ #sbSearchForCache,D0
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_SplineMgr
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ENDM
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MACRO
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_sbPreFlightFontMem
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IMPORT SplineMgr
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MOVEQ #sbPreFlightFontMem,D0
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_SplineMgr
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ENDM
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MACRO
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_fsLowestPPEM
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IMPORT SplineMgr
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MOVEQ #fsLowestPPEM,D0
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_SplineMgr
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ENDM
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MACRO
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_GetStyleBufHand
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IMPORT GetStyleBufHand
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JSR GetStyleBufHand
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ENDM
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MACRO
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_sbFlushFonts
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IMPORT SplineMgr
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MOVEQ #sbFlushFonts,D0
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_SplineMgr
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ENDM
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Macro ; <24>
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_InitializePartialFonts ; <24>
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moveq #selectInitializePartialFonts,d0 ; <24>
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_SplineMgr ; <24>
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EndM ; <24>
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Macro ; <24>
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_InitializeDiskCache ; <24>
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moveq #selectInitializeDiskCache,d0 ; <24>
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_SplineMgr ; <24>
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EndM ; <24>
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;ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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; SPLINE WIDTH TABLE
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;ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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;WidTabData EQU 0 ;256 fixed point widths
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;WidTabFont EQU 1024 ;(long) font handle used to generate this width table
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;WidthSExtra EQU WidTabFont+4 ;(long) fixed point space extra used for this table
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;WidthStyle EQU WidthSExtra+4 ;(long) fixed point extra due to style, used for this table
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;WidthFID EQU WidthStyle+4 ;(word) font family ID for this table
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;WidthFSize EQU WidthFID+2 ;(word) font size request that generated this table
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;WidthFace EQU WidthFSize+2 ;(word) face request that generated this table
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;WidthDevice EQU WidthFace+2 ;(word) device requested
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WidthScales EQU 1044 ; WidthDevice+2 ;(8 bytes) scale factors requested on input
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;WidthAFID EQU WidthScales+8 ;(word) actual font family ID for this table
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;WidthFHand EQU WidthAFID+2 ;(long) font family handle for this table
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;WidthUsedFam EQU WidthFHand+4 ;(boolean) whether we used fixed point family widths
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;WidthAFace EQU WidthUsedFam+1 ;(byte) actual face produced (may differ for styled fonts)
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;WidthVOutput EQU WidthAFace+1 ;(word) vertical scale output value
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;WidthHOutput EQU WidthVOutput+2 ;(word) horizontal scale output value
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;WidthVFactor EQU WidthHOutput+2 ;(word) vertical scale output value
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;WidthHFactor EQU WidthVFactor+2 ;(word) horizontal scale output value
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;WidthASize EQU WidthHFactor+2 ;(word) actual size of font strike used
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WidthNFNT EQU 1070 ; WidthASize+2 ;(word) high bit set if strike used is NFNT
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WidthStrikeID EQU WidthNFNT+2 ;(word) FONT, NFNT or SFNT resource ID
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WidthHint EQU WidthStrikeID+2 ;(word) index to last used entry in color strike table (unimplemented)
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WidthDevRes EQU WidthHint+2 ;(word) Output Device Resolution
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WidthIsSpline EQU WidthDevRes+2 ;(Boolean) non zero means spline exists
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WidthNotFast EQU WidthIsSpline+1 ;(Boolean) set for the not fast case
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WidthBadFont EQU WidthNotFast+1 ;(Boolean) Corrupted font flag
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WidthLoadSpline EQU WidthBadFont+1 ;(Boolean) load a spline?
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WidthFREEBYTE EQU WidthLoadSpline+1 ;(Boolean)
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WidthTrans00 EQU WidthFREEBYTE+2 ; x trans
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WidthTrans11 EQU WidthTrans00+4 ; y trans
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WidthTrans10 EQU WidthTrans11+4 ; skew
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KeepSplineOnDisk EQU WidthTrans10+4 ; (word) non-zero means don't load the spline into memory.
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WidTabSize EQU KeepSplineOnDisk+2 ;total size of a width table.
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fSplineDirectory EQU WidTabSize ;copy of sfnt directory is appended to end of widthtable
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FoutCurStyle EQU $9A9 ;post the current style used here.
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NumTables EQU 12
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FMSwapTrap EQU $101 ;the FMSwapFont trap number for _GetTrapAddr
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WidListSize EQU NumTables*4
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; FOND format definition
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FontFamilyRecord Record 0
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FONDFlags ds.w 1 ; Flags word for family
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FONDFamID ds.w 1 ; Family ID number
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FONDFirst ds.w 1 ; First character in font
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FONDLast ds.w 1 ; Last character in font
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FONDAscent ds.w 1 ; Maximum ascent expressed for 1 pt.
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FONDDescent ds.w 1 ; Maximum descent expressed for 1 pt.
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FONDLeading ds.w 1 ; Maximum leading expressed for 1 pt.
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FONDWidMax ds.w 1 ; Maximum width expressed for 1 pt.
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FONDWTabOff ds.l 1 ; Offset to width table
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FONDKernOff ds.l 1 ; Offset to kerning table
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FONDStylOff ds.l 1 ; Offset to style mapping table
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FONDProperty ds.w 12 ; Style property information
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FONDAssoc equ * ; Start of font association table
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EndR
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FAssocSiz EQU 6 ;size of a font association table entry.
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; Synthetic strike table structure
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; for each entry:
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SyntheticStrikeTable Record 0
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synStrike ds.l 1 ; Handle to sythesized strike
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synNFNT ds.w 1 ; High bit set if strike is 'NFNT'
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synID ds.w 1 ; Resource ID of base 'NFNT' or 'FONT'
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synFGColor ds.b 6 ; User requested foreground color
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synBKColor ds.b 6 ; User requested background color
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synEntry equ * ; Size of synthetic strike table entry
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EndR
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