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458 lines
18 KiB
C
458 lines
18 KiB
C
/*
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File: Bass_Cache.h
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Contains: This is the main define file for the Bass caching mechanism.
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Written by: Charlton E. Lui
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Date: May 8, 1988
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Revision: 1.0
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Copyright: © 1988-1992 by Apple Computer, Inc., all rights reserved.
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Change History (most recent first):
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<9> 8/28/92 DCL Fixed enums with commas before the closing brace. MPW now
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complains.
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<8> 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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<7> 11/15/91 DTY Remember which resource map a font was loaded from.
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<6> 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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<5> 9/25/91 jlf Rolled in modifications from Pacific TrueType project:
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Added prototypes for routines used by the partial font,
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disk caching, and international support routines. Added
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typedef for the memory manager purge procedure. Added
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fSplineDirectory field to the WidthTable structure - the
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spline directory of a TrueType font is now appended to it's
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global width table for partial font support. Added
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fEncodingTablePointer and fScriptNumber fields to the
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sb_CacheHead structure for international support.
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<4> 5/23/91 dba take out second copy of ZoneHandleOptions
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<3> 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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<2> 10/22/90 CL (BKR) Adding support for minimum memory mode to band and run in
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low cache conditions.
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<20> 10/9/90 CL Added support for preflight routine.
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<19> 10/8/90 CL Adding loadSpline flag to the widthTable
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<18> 10/1/90 CL Adding in memoryPatch vector for memory manager fix on the
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growzone.
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<17> 9/27/90 CL Made INITIAL_CHAR_COUNT start out smaller and increment cache
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increases by a smaller amount.
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<16> 9/24/90 CL Added FM data to the cacheheader.
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<15> 9/20/90 CL Adding shrink options for the memory calls.
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<14> 9/16/90 CL Cleaned up splinekeyRecÉ Got rid of disk cache defines.
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Added in heap defines into splineKey. Added mfExists flag.
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Took out old prototypes.
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<13> 8/29/90 CL Added cachezone to splinekey
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<12> 8/28/90 MR Add bitmapzone to splinekey
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<11> 8/20/90 MR Change CacheListHandle to handle of CacheReference {Handle and
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zone} and add fsWorkZone. Both changes record the zone a
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multiheap object lives in.
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<10> 8/1/90 gbm changes here to fix warnings in Bass_Cache.c
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<9> 7/18/90 MR Conditionalize typedef of transformMatrix and remove
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redeclaration of FMOutput
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<8> 7/16/90 CL Adding a vector for after cleaning up the cache.
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<7> 6/29/90 CL Doing workÉ
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<7> 6/20/90 CL Added INCREASE_CACHE constant for the caching code.
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<6> 5/29/90 CL Took out cache references from the width table.
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<5> 5/3/90 CL Added new support for new memory area for scan converter.
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and encryption.
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<4> 4/10/90 CL Added in support for double byte codes. Work on disk caching.
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Fixed retrieval masks.
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<3> 3/20/90 CL Adding disk cacheÉ Support for tag format
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<2> 2/27/90 CL Added in lots of support for optimizations of DrText.
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<1.7> 11/15/89 CEL Moved WidthTabTempHandle up.
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<1.6> 11/14/89 CEL Added device metrics. Added squash capabilities.
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<1.5> 9/25/89 CEL Added in boolean param for sb_FillWidthTab.
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<1.4> 9/15/89 CEL Took out the tempAscent and tempDescent vars in splinekey.
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<1.3> 8/28/89 CEL Using transform matrix in widthtable and splinekeyrec instead of
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numer and denom.
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<1.2> 8/14/89 CEL Added some vars for mfexists & machinetype. These are used for
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mem checks. Added in extra handle for temp memory that is not in
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system heap. Updated widthtable to include encryption var.
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<1.1> 8/1/89 CEL Fixed EASEÕs ÒCÓ comment brackets. On check in they were wrong!
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<1.0> 8/1/89 CEL Adding into Bass build for the first timeÉ
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<1.5> 6/12/89 CEL Re-Structured sp_Glyph data. Got rid of some unnecessary
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constants.
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<1.4> 6/12/89 CEL Needed extra check for sfnt state (face)É
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<1.3> 5/26/89 CEL Integrated the new Font Scaler 1.0 into Spline Fonts
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<1.2> 5/3/89 CEL Comment brackets were previously messed up from override
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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 first timeÉ
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To Do:
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*/
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/*ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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Expandmem Define
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*/
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#define EXPAND_MEM_PTR (*(long *) 0x02B6)
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#define SPLINE_KEY_HAND (*(sb_SplineKeyHdl **) ((char *)EXPAND_MEM_PTR + 0x0068))
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/*ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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WidthListHandle
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*/
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#define FMOUTPUT_PTR (*(Ptr *) 0x0998)
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#define WIDTH_LISTHANDLE (*(Handle **) 0x08E4)
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#define WIDTH_TABNUM 12 /* Currently there are 12 width tables. If this should */
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/* change then change this also */
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#define LASTSPEXTRA 0x0B4C
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#define HILITEMODE 0x0938
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#define PRESERVE_GLYPH 0x10
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/*ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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Resource Manager low mem
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*/
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#define TopMapHndl (*(long *) 0x0A50) /* topmost map in list [handle] */
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#define SysMapHndl (*(long *) 0x0A54) /* system map [handle] */
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#define SysMap (*(short *) 0x0A58) /* reference number of system map [word] */
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#define CurMap (*(short *) 0x0A5A) /* reference number of current map [word] */
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#define UPDATE_RESOURCE_COUNT 20 /* Write resource when number of new entries equal */
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/*ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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CDEFS
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*/
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#ifndef int16
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#define int16 short
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#endif
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#ifndef uint16
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#define uint16 unsigned short
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#endif
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#ifndef int32
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#define int32 int
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#endif
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#ifndef uint32
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#define uint32 unsigned long
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#endif
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#ifndef Fixed
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#define Fixed long
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#endif
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/*ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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MACROS
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*/
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#define MAKE_EVEN( n ) if ( n & 1 ) n++
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#define GetByte( p ) *(((char *)p)++)
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#define GetAlignedWord( p ) *(((short *)p)++)
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/*ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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Transform struct
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*/
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#define OBLIQUE_BIT 2
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#define OUTLINE_BIT 8
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#define SHADOW_BIT 16
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#define HEIGHT 3
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#define WIDTH 3
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#ifndef transformMatrix
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typedef struct {
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Fixed transform[HEIGHT][WIDTH];
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} transformMatrix;
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#endif
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#define POINTSPERINCH 72
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#define INITIAL_BITMAP_SIZE 256
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#define MULTI_ZONE_FLAG 0xFFFFFFFF
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/*ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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CACHE DEFINES
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*/
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#define MAX_PPEM_CACHED 127
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#define CONTOUR_ENTRY_BIT 0x80000000
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#define ERROR_ENTRY_BIT 0xC0000000
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#define ENTRY_MASK 0x3FFFFFFF
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/*ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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NEW CACHE
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*/
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#define INITIAL_CACHES 5 /* Amount of allowed caches at once */
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#define GROW_CACHE_NUM 5 /* Amount of allowed caches at once */
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#define INITIAL_CHAR_COUNT 10 /* Amount of initial characters to alloc for */
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#define ADD_CHAR_NUM 10 /* Add the character numbers */
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#define INCREASE_CACHE 256 /* Amount to increase cache */
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#define GLYPH_COUNT 256 /* Number of possible entries into cache */
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#define AVG_CONTOUR_SIZE 400 /* Say 600 bytes for average contour */
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#define EMPTY 0 /* Empty cell */
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#define ADD_ENTRY_COUNT 128 /* Number of entries to add to cache */
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#define SKIP_ENTRY_COUNT 1 /* Number of entries to skip on collision */
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#define FULL_ENTRY_PERCENT 60 /* Percentage of entries used in full table */
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/*ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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$$$ CHANGE ASSEMBLY IF BELOW IS MODIFIED $$$
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For QuickDraw - DrawText.a
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*/
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typedef struct {
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uint16 StrikeID; /* character to blit */
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uint16 glyphID; /* Code of Glyph */
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uint16 ptSize; /* Size of character */
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uint16 destDepth; /* Depth of device */
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Boolean clipVert; /* Vertical character clip flag */
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Boolean clipHorz; /* Horizontal character clip flag */
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int16 botClip; /* bottom clip off baseline */
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int16 topClip; /* top clip off baseline */
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int16 yMin; /* Y min off baseline */
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int16 yMax; /* Y max off baseline */
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Fixed lsb; /* Left side bearing */
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short devLSB; /* Device Left side bearing */
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int16 scan; /* # of scan lines */
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int16 bandScan; /* size of band for next band */
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int16 nextBotBand; /* next bot character band */
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int16 nextTopBand; /* next top character band */
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Boolean nextBand; /* Another character band? */
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Boolean FILLBYTE; /* */
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long entryOffset; /* entry offset */
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uint16 bitWidth; /* glyph bit width */
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uint32 byteWidth; /* row bytes of character */
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uint32 *bitMapPtr; /* Points to the BitMap */
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uint32 bufStart; /* Start of destination bits buffer */
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} sb_Glyph;
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/*ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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$$$ UPDATE THE ASSEMBLY WHEN CHANGING THIS $$$
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BitMap Header
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*/
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typedef struct {
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short yMin; /* Y min off baseline to place BitMap */
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short yMax; /* Y max off baseline */
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long lsb; /* Left side bearing */
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short devLSB; /* Device left side bearing */
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short adjustTop; /* Adjust this char from ascent */
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short rError; /* Error in case of huge size || bad font */
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short bitWidth; /* Width of char bits */
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long byteWidth; /* number of byte width */
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short xMin; /* Save xMin and also use to calc xMax */
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short scan; /* # of scan lines */
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short scanByteWidth; /* actual need byteWidth for scan converter */
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uint16 glyphID; /* id of glyph */
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/** DO NOT PLACE ANYTHING AT END, THIS IS DATA TERRITORY **/
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long cacheData[]; /* Data starts here */
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} sb_GlyphData;
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#define GLYPH_HEAD_BYTES ((sizeof(sb_GlyphData) + 3) & ~3)
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/*ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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$$$ UPDATE THE ASSEMBLY WHEN CHANGING THIS $$$
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CACHE HEADER
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*/
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typedef struct {
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/* Match the font with these */
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short StrikeID; /* id of sfnt */
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short ptSize; /* point size */
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short face; /* style of request */
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short newEntries; /* Number of new entries added */
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long trans00; /* transform for x */
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long trans11; /* transform for y */
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long trans10; /* transform for skew */
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Fixed ascent; /* Ascent of the font */
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Fixed descent; /* Descent of the font */
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Fixed widMax; /* Widmax of the Font */
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Fixed leading; /* Leading of the Font */
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Fixed lOverHMax; /* Left over hang max */
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Fixed rOverHMax; /* Right over hang max */
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Fixed yMax; /* YMax of the font */
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Fixed yMin; /* YMin of the font */
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short height; /* Height of the font */
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short filler; /* */
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Fixed rightItalicSlop; /* Right Italic slop */
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Fixed leftItalicSlop; /* Left italic slop */
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unsigned char fmAscent; /* FMOutput ascent */
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unsigned char fmDescent; /* FMOutput descent */
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unsigned char fmWidMax; /* FMOutput widmax */
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char fmLeading; /* FMOutput leading */
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long addEntryOffset; /* Offset to next spot to add */
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char bitsCached; /* Set if bitmaps are cached */
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char squashed; /* A squashed cached if true */
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short familyID; /* Family id for international checks */
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Ptr fEncodingTablePointer; /* pointer to double byte encoding table or nil for single byte scripts */
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uint16 fScriptNumber; /* script associated with this cache */
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uint16 fLongWordAlign; /* long word align */
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uint32 glyphArray[]; /* Array of offsets starts here */
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} sb_CacheHead, *sb_CacheHeadPtr, **sb_CacheHeadHdl;
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/*ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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WIDTH TABLE
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*/
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typedef struct {
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Fixed tabData[256];
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Handle tabFont;
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long sExtra;
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Fixed style;
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short fID;
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short fSize;
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short face;
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short device;
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Point inNumer;
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Point inDenom;
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short aFID;
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Handle fHand;
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unsigned char usedFam;
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unsigned char aFace;
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short vOutput;
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short hOutput;
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short vFactor;
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short hFactor;
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short aSize;
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short NFNT;
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short StrikeID;
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short Hint;
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short devRes;
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Boolean IsSpline;
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Boolean notFast; /* flag of whats cached */
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short badFontFlag; /* If the preprogram is corrupt use the missing character */
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Boolean loadSpline; /* set if loading splines */
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Boolean FREEBYTE; /* */
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long trans00; /* transform for x */
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long trans11; /* transform for y */
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long trans10; /* transform for skew */
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short fKeepSplineOnDisk; /* non-zero means don't load the spline into memory */
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short fSplineDirectory[]; /* copy of spline directory is appended here */
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} widthTable, *widthTablePtr, **widthTableHdl;
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/*ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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Font Scaler Storage
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*/
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typedef struct {
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long xOffset, yOffset, startPointOffset, endPointOffset, onCurveOffset;
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long *workSpacePtr; /* workSpace that will work on */
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short contours; /* number of contours */
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} splineData;
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typedef struct {
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Handle cache;
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THz zone;
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} CacheReference;
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typedef enum {
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kNoOptions = 0,
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kKeepContents = 1
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} ZoneHandleOptions;
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typedef enum {
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noShrink = 0,
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doShrink = 1
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} ShrinkOptions;
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typedef enum {
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useApp = 0,
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useSys = 1
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} whichHeap;
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typedef pascal void (*PurgeProcPtr)( Handle purgeableHandle );
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/*ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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$$$ WARNING UPDATE. make parallel changes in fontPrivate.a $$$
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Memory off Spline Low-Mem
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*/
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typedef struct {
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long callDebug; /* Drop into debugger if set and error */
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Ptr vFontCache; /* Dispatch table for QuickDraw caching */
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Ptr vFontScaler; /* Dispatch table for Font scaling routines */
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Handle bitmapHand; /* Bitmap Handle - Number 5 in Font Scaler */
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THz bitmapZone; /* Zone the bitmapHand is allocated in */
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CacheReference** cacheListHandle; /* List of Cache Handles */
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sb_CacheHeadHdl cacheHand; /* Global cache hand */
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THz cacheZone; /* zone for the current cache */
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short cachePlace; /* spot where we got the cache */
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short fontCount; /* Set to Zero on increment each time a new cache exists */
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THz curAppZone; /* current application zone */
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Boolean sysFull; /* System is full */
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Boolean appFull; /* App is full */
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char useHeap; /* which heap to use */
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Boolean mfExists; /* flags whether multiFinder exists */
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short glyphID; /* last glyph id */
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Boolean is32Bit; /* Does 32bit QD exist */
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Boolean squashed; /* Current font is squashed */
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short StrikeID; /* check if still same sfnt */
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short ptSize; /* Check Point Size the same */
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short device; /* check Device resolution the same */
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short face; /* check Face the same */
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long trans00; /* transform for x */
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long trans11; /* transform for y */
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long trans10; /* transform for skew */
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widthTableHdl tempWidthTabHand; /* Used temporarily to get printer widths */
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Ptr vGrowZone; /* vector for growzone patch */
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short safeCount; /* safe count in case of length overflow */
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short EXTRAWORD;
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/* ÑÑÑÑFONT SCALER MEMORYÑÑÑÑ */
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Handle fsWorkHand; /* work area for spline data */
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THz fsWorkZone; /* heap this guy lives in */
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fs_GlyphInputType *inPtr; /* pointer to input struct */
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fs_GlyphInfoType *outPtr; /* pointer to info struct */
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long inputOffset; /* Constant memory */
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long infoOffset; /* Constant memory */
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long globalOffset0; /* Constant memory */
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long globalOffset1; /* Constant memory */
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long globalOffset2; /* Constant memory */
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long sfntDataOffset3; /* Variable size memory */
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long sfntDataOffset4; /* Variable size memory */
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long rowArrayOffset6; /* Variable size memory */
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long columnArrayOffset7; /* Variable size memory */
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THz fPartialFontZone; /* Zone for partial font fragments */
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FragmentTableCacheStructureHandle fFragmentTableCache; /* list of fragment tables */
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short fLastSwapFontFamilyID; /* FMInput family ide passed in at last SwapFont call */
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Handle fDiskCacheMap; /* handle to disk cache map */
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PurgeProcPtr fResourceManagerPurgeProcedure; /* saved resource manager purge procedure */
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Boolean fInPurgeProcedure; /* true if currently in purge procedure */
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Boolean fFontCacheExists; /* true if the font cache exists */
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short lastFontMap; /* Reference number of resource map last font was fetched from */
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Handle fondCache[2]; /* Cache for candidate FOND list */
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} sb_SplineKey, *sb_SplineKeyPtr, **sb_SplineKeyHdl;
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/*ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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Interfaces
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*/
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#define SB_KILLSOMECACHES 0x0002
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#define SB_FILLPRINTER_WIDTHS 0x0003
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#define SB_RETRIEVE_GLYPH 0x0004
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#define SB_FILL_WIDTHTAB 0x0005
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#define SB_SFNTMatchSIZE 0x000d
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/*ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
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Outside system client calls
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*/
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/* Private calls */
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extern pascal long FillPrinterWidths(Fixed *widthsArrayPtr, Handle sfntHand)
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= {0x7000 + SB_FILLPRINTER_WIDTHS,0xA854};
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extern pascal long KillSomeCaches( unsigned long startAddr, unsigned long endAddr )
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= {0x7000 + SB_KILLSOMECACHES,0xA854};
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extern pascal long sb__RetrieveGlyph( widthTableHdl widthTabHand, register sb_Glyph *glyphPtr )
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= {0x303C,SB_RETRIEVE_GLYPH,0xA854};
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extern pascal long sb__FillWidthTab(widthTableHdl widthTabHand, Boolean fractEnable, Boolean needWidths)
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= {0x303C,SB_FILL_WIDTHTAB,0xA854};
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extern pascal Boolean sb__SFNTMatchSize(Handle sfntHand, short matchSize)
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= {0x303C,SB_SFNTMatchSIZE,0xA854};
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long sb_ShrinkCacheToMin(sb_CacheHeadHdl cacheHand, long addEntryOffset);
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Handle sb_SizeTheBlock(sb_SplineKeyHdl splineKey, Handle inputH, THz* inputZone, long inputSize, ZoneHandleOptions options, short cachePlace, ShrinkOptions shrinkTest);
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void sb_DisposeZoneHandle(Handle h, THz zonePtr);
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Handle sb_NewZoneHandle(sb_SplineKeyHdl splineKey, long size, THz* zone);
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short IntrinsicStyle(widthTablePtr w);
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