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mac-rom/QuickDraw/Classic/Text.m.a
Elliot Nunn 4325cdcc78 Bring in CubeE sources 
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2017-12-26 09:52:23 +08:00

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;
; File: Text.m.a
;
; Contains: Standard procs for text manipulation.
;
; Copyright: © 1988-1992 by Apple Computer, Inc., all rights reserved.
;
; Change History (most recent first):
;
; <35> 4/24/92 DTY Get rid of hasSplineFonts conditionals. Also get rid of forROM
; conditionals, since this file is not used for ROM builds.
; <34> 10/23/91 ngk Changed case of PUTPICWORD to PutPicWord so that ROMBinds are
; happy
; <33> 9/25/91 jlf Rolled in Pacific TrueType modifications (aka: doublebyte support).
; Removed DOUBLE_BYTE conditional code and inserted hasDoubleByte
; code. Removed enNumer/enDenom stuff to fix divide-by-zero bug in TrueType.
; Peter Edberg says that emNumer/emDenom is no longer supported.
; <32> 8/30/91 DTY Define onMac here now that itÕs not an available feature in
; BBSStartup. Defined to be 1 for the System build because onMac
; used to be a feature of the System build.
; <31> 6/12/91 LN added #include 'SysPrivateEqu.a'
; <30> 3/13/91 JT Added the glyph state opcode support to text drawing under old
; QuickDraw. This opcode records the state of the Font Manager and
; TrueType so text will be drawn the same on picture playback as
; it was during picture recording. Also prevented font naming,
; line layout, and glyph state opcodes from being recorded in old
; pictures. Code checked by KON and BAL. BRC numbers 82651 and
; 79185. Worksheet number KON-022.
; <29> 2/21/91 KON DFH: BRC #82863, GrayishTextOr mode should not be saved to
; pictures in System 7.
; <28> 1/15/91 CL (MR)Now safecount must be set to -2 if the pen loc needs to be
; added inside of stdtxmeas.
; <27> 1/14/91 CL (RB) Fixed more problems in long string phenomenom. Style
; variations such as italic when measured did not add in slop when
; checking overflow calculation in stdtxmeas.
; <26> 1/14/91 SMB (jdt) Initializing overflow count to -1.
; <25> 1/10/91 KON If a font name does not exist for a given ID when doing font
; name/ID binding, don't write a $2C opcode to the picture. [SMC]
; <24> 1/9/91 RB (CEL/PKE/GM/DA) Fixing long string overflow bug by truncating
; the count. Duplicated text.a changes.
; <23> 8/24/90 PKE (per JT) Use new Script Mgr line layout values in GrafGlobals
; instead of soon-to-be-obsolete values in Script Mgr globals. Use
; new names picQdChExtra and picQdRunSlop instead of picSMgrChar
; and picSMgrSlop. Fixed MeasureText for double-byte chars.
; <22> 8/17/90 dvb Add grayish mode slime.
; <21> 8/1/90 MR Fix some Case Sensitivity for the Gaudi INIT
; <20> 8/1/90 KON Add DoPict2 for rom build.
; <19> 7/26/90 KON Non-init (non-gaudi) versions of StdText should always call RAM
; version of CheckPic so Pict2 creation with OpenCPicture
; works.
; <19> 7/25/90 KON Non-init (non-gaudi) versions of StdText should always call RAM
; versions of CheckPic and DoPict2 so PICT2 creation with
; OpenCPicture works.
; <18> 7/20/90 DTY Bass: The Linked Patch. Added conditional Black and White names
; for routines, since Bass is carrying around two versions of this
; file, and the names need to be unique. Conditionalised jumps
; into ROM (CheckPic, PutPicByte, etc.): ROM builds continue to
; use bsr.l, but Bass builds will use jsrROM macro.
; <17> 6/22/90 CL Using the shared GrafTypes.m.a and added new include file
; fontPrivate.a and other include files needed.
; <16> 6/20/90 KON OpenCPicture creates a PICT2, so we need to word align opcodes
; when we are creating PICT2's.
; <15> 6/9/90 JT Need to import the CalcCharExtra routine that we now share with
; Text.a (sorry about that).
; <14> 6/9/90 JT Now scale the character extra by the font size specified in the
; current GrafPort. This is the same treatment normally given to
; chExtra by ColorQuickDraw. Note that these two extra values are
; added together before they are scaled. Also, these routines now
; rely on the CalcCharExtra routine to perform the scaling.
; <13> 6/7/90 PKE Add scaling parameters to MeasureText stack frame, set them from
; new ExpandMem globals, use them to scale results.
; <12> 5/29/90 CL Placed vertical metrics into cache instead of the widthtable.
; <11> 4/24/90 JT Save the Script Manager line-layout information when spooling a
; picture in StdText. Changed some short branches to long branches
; since the destinations are farther away when all of the
; conditional code is included.
; <10> 4/23/90 JT Save the Script Manager line-layout information when spooling a
; picture in StdText.
; <9> 4/17/90 HJR Fix Case OBJ problem.
; <8> 4/16/90 HJR Change SPLINE_FONTS to hasSplineFonts.
; <7> 4/10/90 CL Added support for double byte codes
; <6> 3/26/90 CL Adding measuretext for system build for script manager addition
; of character extra.
; <5> 3/21/90 CL Fixing conditionals for rom build. Script Manager char extra
; addition.
; <4> 3/20/90 CL nothing change
; <3> 3/20/90 CL Adding in Script Managers special charextra for 68000 class
; machines
; <2> 2/27/90 CL The Bass init code working on 6.0.4 systems do not use the pict
; font name matching. ifdefed them out.
; <1.9> 11/7/89 KON Added support for font name/ID binding
; <1.8> 8/28/89 CEL Only need to use word part of ascent, descent, widmax & leading
; <1.7> 7/6/89 GGD Un-Func'd TextWidth so that alignment wouldn't screw up
; StringWidth falling into it.
; <1.6> 6/10/89 CEL Moved Private.a QuickDraw Equates into proper QuickDraw private
; file (colorequ.a), got rid of QuickDraw nFiles dependencies and
; fixed up necessary filesÉ
; <¥1.5> 5/4/89 CEL Cleaned up conditionals for ROM, HcMac works now! Blasting in
; fixÉ
; <¥1.4> 5/3/89 CEL Bass rolled into ROM. NOTE:Spline Fonts are conditionalized out.
; Blasting in correct file
; <¥1.2> 5/1/89 cel Rolled in BassÉ
; <1.1> 11/11/88 CCH Fixed Header.
; <1.0> 11/9/88 CCH Adding to EASE.
; <1.2> 10/12/88 CCH Changed Òm.GrafType.aÓ to ÒGrafType.m.aÓ.
; <1.1> 5/18/88 MSH Changed inclides to use m.GRAPHTYPES to work under EASE.
; <1.0> 2/11/88 BBM Adding file for the first time into EASEÉ
;
; To Do:
;
BLANKS ON
STRING ASIS
if (&type('onMac') = 'UNDEFINED') then
onMac: equ 1 ; Define as true because this is the way it used to be in for System builds before Dean and Darin messed with BBSStartup
endif
IF (&TYPE('INITVERSION') = 'UNDEFINED') THEN
Gaudi EQU 0 ; No init if not defined.
ELSE
Gaudi EQU 1
ENDIF
IF (&TYPE('hasDoubleByte') = 'UNDEFINED') THEN
hasDoubleByte EQU 1
ENDIF
IF (&TYPE('SCRIPT_CHAR_EXTRA') = 'UNDEFINED') THEN ; <5> CEL
SCRIPT_CHAR_EXTRA EQU 1
ENDIF
IF (&TYPE('hasGlyphState') = 'UNDEFINED') THEN
hasGlyphState EQU 1
ENDIF
CASE OBJ
INCLUDE 'Traps.a'
INCLUDE 'sysequ.a'
INCLUDE 'GRAFTYPES.m.a'
INCLUDE 'fontPrivate.a'
INCLUDE 'LinkedPatchMacros.a'
INCLUDE 'ToolEqu.a'
INCLUDE 'SysPrivateEqu.a'
INCLUDE 'SplineDefines.a'
;---------------------------------------------------------
;
;
; ***** ***** * * *****
; * * * * *
; * * * * *
; * *** * *
; * * * * *
; * * * * *
; * ***** * * *
;
;
; Routines for measuring and drawing Text.
;
;-------------------------------------------
;
; KERNED STRIKE FONT FORMAT OFFSETS:
;
FORMAT EQU 0 ;WORD
MINCHAR EQU 2 ;WORD
MAXCHAR EQU 4 ;WORD
MAXWD EQU 6 ;WORD
FBBOX EQU 8 ;WORD
FBBOY EQU 10 ;WORD
FBBDX EQU 12 ;WORD
FBBDY EQU 14 ;WORD
LENGTH EQU 16 ;WORD
ASCENT EQU 18 ;WORD
DESCENT EQU 20 ;WORD
XOFFSET EQU 22 ;WORD
RASTER EQU 24 ;WORD
BWStdText PROC EXPORT
IMPORT BWDrText
if not( Gaudi) then
IMPORT CHECKPIC,DPUTPICBYTE,PUTPICDATA,PUTPICWORD,PUTPICLONG,DOPICT2
endif
;----------------------------------------------------------
;
; PROCEDURE StdText();
;
; This is a check at the head of StdText to support grayish text mode.
; if txMode is 49, then call the old stdtext with text ormode, and
; then stamp bic'ed gray patter over its bounds.
; else, just go on to the real stdText
DGVars RECORD {A6Link},DECREMENT
result DS.B 0 ; none
count DS.B 2 ; input: number of characters
string DS.B 4 ; input: pointer to string
xNumer DS.B 4 ; input: numer scaler
xDenom DS.B 4 ; input: denom scaler
return DS.B 4 ; return address on stack
A6Link DS.B 4 ; link
oldPen DS.B 18 ; PenState record
oldPicSave DS.B 4 ; We turn off picture recording <KON 20FEB91>
finfo DS.B 8 ; font info record
myr DS.B 8 ; rectangle of text to stamp
numerCopy DS.B 4 ; copies for stdTxMeas call
denomCopy DS.B 4
linkSize DS.B 0 ; size of record
ENDR
grayishTextOr EQU 49 ; this is in QuickEqu.a, its not icl'd
WITH DGVars
MOVE.L (A5),A0
MOVE.L (A0),A0 ; A0->the port
CMPI #grayishTextOr,txMode(A0) ; is it the secret mode?
BEQ.S @itsus
jmp reglarStdText ; join the original ROM code.
@itsus ; do text and bic-stamp
LINK A6,#linkSize
MOVE.L picSave(A0),oldPicSave(A6) ; disable picture saving (a0 still valid) <KON 20FEB91>
CLR.L picSave(A0)
PEA oldPen(A6) ; Save Penstate
_GetPenState
_PenNormal
SUBQ #2,SP ; figure out the width of the text
MOVE count(A6),-(SP)
MOVE.L string(A6),-(SP)
MOVE.L xNumer(A6),numerCopy(A6)
PEA numerCopy(A6)
MOVE.L xDenom(A6),denomCopy(A6)
PEA denomCopy(A6)
PEA finfo(A6)
_StdTxMeas ; leave pen advance on stack
PEA finfo(A6) ; did stdTxMeas do that?
_GetFontInfo
MOVE.L oldPen(A6),D1 ; D1 = previous pen position
MOVE D1,myr+left(A6) ; save pen.h
ADD (SP)+,D1 ; D1 = pen.h + pen advance
MOVE D1,myr+right(A6) ; to get right
SWAP D1 ; D1 = pen.v
MOVE D1,D2
SUB finfo+0(A6),D2 ; (0=ascent)figger highest point
ADD finfo+2(A6),D1 ; (2=descent)and lowest point
MOVE D2,myr+top(A6)
MOVE D1,myr+bottom(A6) ; myr is now the string's bounds
MOVE #srcOr,-(SP) ; draw text in srcOr
_TextMode
MOVE count(A6),-(SP)
MOVE.L string(A6),-(SP)
MOVE.L xNumer(A6),-(SP)
MOVE.L xDenom(A6),-(SP)
JSR ReglarStdText
MOVE #grayishTextOr,-(SP) ; restore textmode
_TextMode
MOVE.L (A5),A0 ; get QuickDraw globals
PEA Gray(A0) ; push gray
_PenPat ; set pen to it
MOVE #PatBIC,-(SP) ; push patBIC penMode
_PenMode ; set penMode
PEA myr(A6)
_PaintRect
PEA oldPen(A6) ; Restore Penstate
_SetPenState
MOVE.L (A5),A0 ; restore picture saving <KON 20FEB91>
MOVE.L (A0),A0 ; <KON 20FEB91>
MOVE.L oldPicSave(A6),picSave(A0) ; <KON 20FEB91>
UNLK A6
MOVE.L (SP)+,A0
ADD #result-return-4,SP
JMP (A0)
reglarstdtext
;--------------------------------------------------------------------------
;
; PROCEDURE StdText(count: INTEGER; textAddr: Ptr; numer,denom: Point);
;
; A6 OFFSETS OF PARAMS AND LOCALS AFTER LINK:
;
PARAMSIZE EQU 14
COUNT EQU PARAMSIZE+8-2 ;WORD
TEXTADDR EQU COUNT-4 ;LONG
NUMER EQU TEXTADDR-4 ;POINT
DENOM EQU NUMER-4 ;POINT
TXLOC EQU -4 ;POINT
VARSIZE EQU TXLOC ;TOTAL LOCALS
LINK A6,#VARSIZE ;ALLOCATE STACK FRAME
MOVEM.L D5-D7/A3-A4,-(SP) ;SAVE REGS
TXTLOOP MOVE COUNT(A6),D6 ;GET CHARACTER COUNT
BLE GOHOME ;QUIT IF COUNT <= 0
CMP #255,D6 ;is count > 255 ?
BLE.S COUNTOK ;no, continue
MOVE #255,D6 ;yes, pin at 255
COUNTOK
if Gaudi then
jsrROM CheckPic ; <18> DTY
else
JSR CHECKPIC ;SET UP A4,A3 AND CHECK PICSAVE
endif
BLE NOTPIC
MOVE.L PICSAVE(A3),A4 ;GET PICSAVE HANDLE
MOVE.L (A4),A4 ;DE-REFERENCE PICSAVE
;
; CHECK TXFONT
;
MOVE TXFONT(A3),D7 ;GET THEPORT^.TXFONT
CMP PICTXFONT(A4),D7 ;HAS IT CHANGED ?
BEQ FONTOK ;NO, CONTINUE
IF (NOT Gaudi) THEN
;---------- START OF <03Nov89 KON> ADDITION --------------
tst.w picVersion(a4) ; is this a new picture?
beq notNewName ; no, skip this opcode
move.l picFontList(a4),a0 ;get fontList handle
move.l a0,d0 ;check for nil
beq.s notNewName ;drop down the id only
move.l (a0),a0
addq.w #4,a0 ;skip handle size
move.w (a0)+,d1 ;get entry count
@2 cmp.w (a0)+,d7 ;have we seen this fond before?
@1 dbeq d1,@2 ;no, keep looking
beq.s notNewName ;yes, we found it
;
; At this point we have found a non-zero fond ID which we have not seen previously
; so we must add it to the fontList handle. If the handle needs to be resized we do that
; here as well.
fontChunk equ 50*2
exg.l d0,a0 ;get fontList handle in a0, end in d0
move.l (a0),a1 ;
sub.l a1,d0 ;get amnt of handle in use
cmp.l (a1),d0 ;same as size of handle?
blt.s addFontName ;no need to grow list
add.w #fontChunk,d0 ;bump handleSize enough for 25 more fonts
move.l d0,(a1) ;save the new size
_SetHandleSize ;grow list
move.l picFontList(a4),a1 ;get fontList handle
move.l (a1),a1 ;get fontList handle
tst.w d0 ;did we get it?
beq.s addFontName ;yes, continue
sub.w #fontChunk,(a1) ;couldn't grow it.
bra.s notNewName ;skip name stuff
addFontName
sub.w #256,sp ;alloc space for font name
move d7,-(sp) ;push font id
; move.l sp,-(sp)
; addq.l #2,(sp) ;push var font name
pea 2(sp) ;push var font name
_GetFName
move.b (sp),d1 ;check for empty string
beq.s @badID ;don't record this name
move.l picFontList(a4),a1 ;get fontList handle
move.l (a1),a1 ;get fontList handle
addq.w #4,a1 ;point to number of entries in use - 1
addq.w #1,(a1) ;bump the entry count
move.w (a1)+,d0 ;get new entry count and point to entry array
lsl.w #1,d0 ;changed for 68K <03Nov89 KON>
move.w d7,(a1,d0) ;store new ID
if not( Gaudi) then
jsr DOPICT2
endif
MOVEQ #$2C,D0 ;YES, GET Font Name PARAM OPCODE
if (Gaudi) then
jsrROM DPutPicByte ; <18> DTY
else
jsr DPUTPICBYTE ;PUT OPCODE
endif
moveq #3,d0 ;prime data size (word length + byte length)
add.b (sp),d0 ;add in length of string <16Jan90 KON>
move.w d0,-(sp) ;dump out data length
if not( Gaudi) then
jsr PUTPICWORD ;
else
jsrROM PutPicWord ; <18> DTY
endif
MOVE D7,-(SP)
if not( Gaudi) then
jsr PUTPICWORD ;dump font id
else
jsrROM PutPicWord ; <18> DTY
endif
moveq #1,d0 ;prime string size
add.b (sp),d0 ;add in length of string
MOVE.L sp,-(SP) ;PUSH ADDR OF TEXT
MOVE D0,-(SP) ;PUSH COUNT
if not( Gaudi) then
jsr PUTPICDATA ;PUT TEXT DATA
else
jsrROM PutPicData
endif
@badID add.w #256,sp ;de-alloc space for font name
ENDIF ;Leaving out pict font name matching for init
;Matching does not exist in 6.0.4
notNewName
;---------- END OF <03Nov89 KON> ADDITION --------------
if not( Gaudi) then
jsr DOPICT2
endif
MOVEQ #3,D0 ;YES, PUSH TXFONT PARAM OPCODE
if not( Gaudi) then
jsr DPUTPICBYTE ;PUT OPCODE
else
jsrROM DPutPicByte ; <18> DTY
endif
MOVE D7,-(SP)
if not( Gaudi) then
JSR PUTPICWORD ;PUT TXFONT PARAM
else
jsrROM PutPicWord ; <18> DTY
endif
MOVE.L PICSAVE(A3),A4 ;GET PICSAVE HANDLE
MOVE.L (A4),A4 ;DE-REFERENCE PICSAVE
MOVE D7,PICTXFONT(A4) ;UPDATE CURRENT STATE
;
; CHECK TXFACE
;
FONTOK MOVE.B TXFACE(A3),D7 ;GET THEPORT^.TXFACE
CMP.B PICTXFACE(A4),D7 ;HAS IT CHANGED ?
BEQ.S FACEOK ;NO, CONTINUE
if not( Gaudi) then
jsr DOPICT2
endif
MOVEQ #4,D0 ;YES, PUSH TXFACE PARAM OPCODE
if not( Gaudi) then
JSR DPUTPICBYTE ;PUT OPCODE
else
jsrROM DPutPicByte ; <18> DTY
endif
MOVE.B D7,D0
if not( Gaudi) then
JSR DPUTPICBYTE ;PUT TXFACE PARAM
else
jsrROM DPutPicByte ; <18> DTY
endif
MOVE.L PICSAVE(A3),A4 ;GET PICSAVE HANDLE
MOVE.L (A4),A4 ;DE-REFERENCE PICSAVE
MOVE.B D7,PICTXFACE(A4) ;UPDATE CURRENT STATE
;
; CHECK TXMODE
;
FACEOK MOVE TXMODE(A3),D7 ;GET THEPORT^.TXMODE
CMP PICTXMODE(A4),D7 ;HAS IT CHANGED ?
BEQ.S MODEOK ;NO, CONTINUE
if not( Gaudi) then
jsr DOPICT2
endif
MOVEQ #5,D0 ;YES, PUSH TXMODE PARAM OPCODE
if not( Gaudi) then
JSR DPUTPICBYTE ;PUT OPCODE
else
jsrROM DPutPicByte
endif
MOVE D7,-(SP)
if not( Gaudi) then
JSR PUTPICWORD ;PUT TXMODE PARAM
else
jsrROM PutPicWord
endif
MOVE.L PICSAVE(A3),A4 ;GET PICSAVE HANDLE
MOVE.L (A4),A4 ;DE-REFERENCE PICSAVE
MOVE D7,PICTXMODE(A4) ;UPDATE CURRENT STATE
;
; CHECK TXSIZE
;
MODEOK MOVE TXSIZE(A3),D7 ;GET THEPORT^.TXSIZE
CMP PICTXSIZE(A4),D7 ;HAS IT CHANGED ?
BEQ.S SIZEOK;NO, CONTINUE
if not( Gaudi) then
jsr DOPICT2
endif
MOVEQ #$0D,D0 ;YES, PUSH TXSIZE PARAM OPCODE
BSR JDPUTPICBYTE ;PUT OPCODE
MOVE D7,-(SP)
if not( Gaudi) then
JSR PUTPICWORD ;PUT TXSIZE PARAM
else
jsrROM PutPicWord
endif
MOVE.L PICSAVE(A3),A4 ;GET PICSAVE HANDLE
MOVE.L (A4),A4 ;DE-REFERENCE PICSAVE
MOVE D7,PICTXSIZE(A4) ;UPDATE CURRENT STATE
;
; CHECK SPEXTRA
;
SIZEOK MOVE.L SPEXTRA(A3),D7 ;GET THEPORT^.SPEXTRA
CMP.L PICSPEXTRA(A4),D7 ;HAS IT CHANGED ?
BEQ.S SPOK ;NO, CONTINUE
if not( Gaudi) then
jsr DOPICT2
endif
MOVEQ #6,D0 ;YES, PUSH SPEXTRA PARAM OPCODE
BSR JDPUTPICBYTE ;PUT OPCODE
MOVE.L D7,-(SP)
BSR JPUTPICLONG ;PUT SPEXTRA PARAM
MOVE.L PICSAVE(A3),A4 ;GET PICSAVE HANDLE
MOVE.L (A4),A4 ;DE-REFERENCE PICSAVE
MOVE.L D7,PICSPEXTRA(A4) ;UPDATE CURRENT STATE
SPOK
;
; CHECK SMGRCHAREXTRA AND SMGRSLOP
;
IF SCRIPT_CHAR_EXTRA THEN
tst.w picVersion(a4) ; is this a new picture?
beq.s @layoutOK ; no, skip this opcode.
move.l grafGlobals(a5),a0 ; load quickDraw globals. <23>
move.l qdChExtra(a0),d5 ; load character extra amount. <23>
move.l qdRunSlop(a0),d7 ; load run slop amount. <23>
cmp.l picQdChExtra(a4),d5 ; has extra changed since last time? <23>
bne.s @layoutChanged ; yes -> update the layout state.
cmp.l picQdRunSlop(a4),d7 ; has slop changed since last time? <23>
beq.s @layoutOK ; no -> skip this.
@layoutChanged
IF Gaudi THEN
moveq #$2D,d0 ; load line layout opcode.
bsr JDPUTPICBYTE ; put line layout opcode.
move.w #8,-(sp) ; push the data length.
jsrROM PutPicWord ; put the data length into the picture.
move.l d5,-(sp) ; push the character extra amount.
jsrROM PutPicLong ; put the character extra into the picture.
move.l d7,-(sp) ; push the run slop amount.
jsrROM PutPicLong ; put the run slop into the picture.
ELSE
jsr DOPICT2 ; pad picture data with zero if necessary.
moveq #$2D,d0 ; load line layout opcode.
bsr JDPUTPICBYTE ; put line layout opcode.
move.w #8,-(sp) ; push the data length.
jsr PUTPICWORD ; put the data length into the picture.
move.l d5,-(sp) ; push the character extra amount.
jsr PUTPICLONG ; put the character extra into the picture.
move.l d7,-(sp) ; push the run slop amount.
jsr PUTPICLONG ; put the run slop into the picture.
ENDIF
move.l picSave(a3),a4 ; load the picSave handle.
move.l (a4),a4 ; load the picSave pointer.
move.l d5,picQdChExtra(a4) ; update current character extra. <23>
move.l d7,picQdRunSlop(a4) ; update current run slop. <23>
@layoutOK
ENDIF
;
; CHECK GLYPH STATE
;
IF hasGlyphState THEN
tst.w picVersion(a4) ; is this a new picture?
beq.s @glyphStateOK ; no, skip this opcode
btst.b #splinePreferred,HiliteMode ; bit flag set in HiliteMode?
sne.b d5 ; yes, set outline preferred flag
lsl.l #8,d5 ; make room for preserve glyph flag
btst.b #preserveGlyph,HiliteMode ; bit flag set in HiliteMode?
sne.b d5 ; yes, set preserve glyph flag
lsl.l #8,d5 ; make room for fractional widths flag
move.b FractEnable,d5 ; save fractional widths flag
lsl.l #8,d5 ; make room for scale disable flag
move.b FScaleDisable,d5 ; save scale disable flag
cmp.l picGlyphState(a4),d5 ; glyph state has changed?
beq.s @glyphStateOK ; no, skip all this
IF Gaudi THEN
moveq #$2E,d0 ; load glyph state opcode
bsr.s JDPUTPICBYTE ; put the opcode into the picture
move.w #4,-(sp) ; push the data length
jsrROM PutPicWord ; put the data length into the picture <34> fix case
move.l d5,-(sp) ; push the glyph state
jsrROM PUTPICLONG ; put the glyph state into the picture
ELSE
jsr DOPICT2 ; pad picture data with zero if necessary
moveq #$2E,d0 ; load glyph state opcode
bsr.s JDPUTPICBYTE ; put the opcode into the picture
move.w #4,-(sp) ; push the data length
jsr PUTPICWORD ; put the data length into the picture
move.l d5,-(sp) ; push the glyph state
jsr PUTPICLONG ; put the glyph state into the picture
ENDIF
move.l picSave(a3),a4 ; get picSave handle.
move.l (a4),a4 ; dereference picSave.
move.l d5,picGlyphState(a4) ; update current glyph state
@glyphStateOK
ENDIF
;
; CHECK NUMER, DENOM
;
MOVE.L NUMER(A6),D7 ;GET NUMER
MOVE.L DENOM(A6),D5 ;GET DENOM
CMP.L PICTXNUMER(A4),D7 ;HAS IT CHANGED ?
BNE.S NOTSAME ;YES, RECORD CHANGE
CMP.L PICTXDENOM(A4),D5 ;HAS IT CHANGED ?
BEQ.S NUMEROK ;NO, CONTINUE
NOTSAME
if not( Gaudi) then
jsr DOPICT2
endif
MOVEQ #$10,D0 ;YES, PUSH TXRATIO OPCODE
BSR.S JDPUTPICBYTE ;PUT OPCODE
MOVE.L D7,-(SP)
BSR.S JPUTPICLONG ;PUT NUMER
MOVE.L D5,-(SP)
BSR.S JPUTPICLONG ;PUT DENOM
MOVE.L PICSAVE(A3),A4 ;GET PICSAVE HANDLE
MOVE.L (A4),A4 ;DE-REFERENCE PICSAVE
MOVE.L D7,PICTXNUMER(A4) ;UPDATE CURRENT STATE
MOVE.L D5,PICTXDENOM(A4) ;UPDATE CURRENT STATE
NUMEROK
;-------------------------------------------------------------
;
; USE DH AND DV TO CHOOSE ONE OF FOUR TEXT OPCODES.
;
MOVE.L PNLOC(A3),D5 ;GET CURRENT PNLOC
SUB.L PICTXLOC(A4),D5 ;CALC DV.DH
MOVE.L D5,D0 ;COPY DV.DH
AND.L #$FF00FF00,D0 ;ARE DH AND DV BOTH 0..255 ?
BEQ.S SHORT ;YES, USE SHORT FORM
if not( Gaudi) then
jsr DOPICT2
endif
MOVEQ #$28,D0
BSR.S JDPUTPICBYTE ;NO, PUT LONGTEXT OPCODE
MOVE.L PNLOC(A3),-(SP)
BSR.S JPUTPICLONG ;PUT PNLOC 4 BYTES
BRA.S TEXT2 ;AND CONTINUE
JDPUTPICBYTE
if not( Gaudi ) then
JMP DPUTPICBYTE
else
jmpROM DPutPicByte
endif
JPUTPICLONG
if not( Gaudi ) then
JMP PUTPICLONG
else
jmpROM PutPicLong
endif
SHORT MOVE.L D5,D0 ;YES, COPY DV.DH
AND.L #$00FF0000,D0 ;IS DV = 0 ?
BNE.S DV ;NO, CONTINUE
if not( Gaudi) then
jsr DOPICT2
endif
MOVEQ #$29,D0
BSR.S JDPUTPICBYTE ;YES, PUT DHTEXT OPCODE
BRA.S SHARE2 ;SHARE COMMON CODE
DV TST.B D5 ;IS DH = 0 ?
BNE.S DHDV ;NO, CONTINUE
if not( Gaudi) then
jsr DOPICT2
endif
MOVEQ #$2A,D0
BSR.S JDPUTPICBYTE ;YES, PUT DHTEXT OPCODE
BRA.S SHARE1 ;SHARE COMMON CODE
DHDV
if not( Gaudi) then
jsr DOPICT2
endif
MOVEQ #$2B,D0
BSR.S JDPUTPICBYTE ;PUT DHDVTEXT OPCODE
MOVE.B D5,D0
BSR.S JDPUTPICBYTE ;PUT DH 0..255 TO PIC
SHARE1 SWAP D5 ;PUT DV IN LO WORD
SHARE2 MOVE.B D5,D0
BSR.S JDPUTPICBYTE ;PUT DH OR DV 0..255 TO PIC
TEXT2 MOVE.B D6,D0
BSR.S JDPUTPICBYTE ;PUT COUNT BYTE TO PIC
MOVE.L TEXTADDR(A6),-(SP) ;PUSH ADDR OF TEXT
MOVE D6,-(SP) ;PUSH COUNT
if not( Gaudi ) then
JSR PUTPICDATA ;PUT TEXT DATA
else
jsrROM PutPicData ; <18> DTY
endif
MOVE.L PICSAVE(A3),A4 ;GET PICSAVE HANDLE
MOVE.L (A4),A4 ;DE-REFERENCE PICSAVE
MOVE.L PNLOC(A3),PICTXLOC(A4) ;UPDATE PICTXLOC STATE
;
; DrText(count,textAddr,numer,denom);
;
NOTPIC MOVE D6,-(SP) ;PUSH COUNT
MOVE.L TEXTADDR(A6),-(SP) ;PUSH TEXTADDR
MOVE.L NUMER(A6),-(SP) ;PUSH NUMER
MOVE.L DENOM(A6),-(SP) ;PUSH DENOM
jsr BWDrText ; <18> DTY
SUB D6,COUNT(A6) ;was count > 255 ?
BLE.S GOHOME ;no, quit
MOVE.L TEXTADDR(A6),A0 ;yes, get old textaddr
ADD D6,A0 ;offset for characters done
MOVE.L A0,TEXTADDR(A6) ;update textAddr
BRA TXTLOOP ;and loop for more
GOHOME MOVEM.L (SP)+,D5-D7/A3-A4 ;RESTORE REGS
UNLINK PARAMSIZE,'STDTEXT '
BWStdTxMeas FUNC EXPORT
IF SCRIPT_CHAR_EXTRA THEN
IMPORT CalcCharExtra
ENDIF
;------------------------------------------
;
; FUNCTION StdTxMeas(count: INTEGER; textAddr: Ptr;
; VAR numer,denom: Point;
; VAR info: FontInfo): INTEGER;
;
; Measure some text, returning unscaled values plus updated scale factor.
; Fills info record with unscaled ascent, descent, widMax, and leading,
; and returns unscaled integer width as the function value.
;
; Also leaves unscaled fixed point width in QD global 'fixTxWid'
; and stashes FMOutPtr in QD global 'fontPtr' for DrawText.
;
PARAMSIZE EQU 18
RESULT EQU PARAMSIZE+8 ;FCN RESULT IS A WORD
COUNT EQU RESULT-2 ;WORD
TEXTADDR EQU COUNT-4 ;LONG
NUMER EQU TEXTADDR-4 ;LONG, VAR ADDR
DENOM EQU NUMER-4 ;LONG, VAR ADDR
INFO EQU DENOM-4 ;LONG, ADDR OF FONTINFO
INREC EQU -16 ;FMInput record
characterExtra EQU INREC-4 ;LONG
widthExtra EQU characterExtra-4 ;LONG <27-CEL>
encodingTable EQU widthExtra-4 ;LONG
VARSIZE EQU encodingTable
LINK A6,#VARSIZE ;ALLOCATE LOCALS
if (hasDoubleByte) then
movem.l d4/a2-a3,-(sp) ; save double-byte registers
clr.l encodingTable(a6) ; assume no encoding table
endif
MOVEM.L D3/A4,-(SP) ;SAVE REG <24-CEL/RWB>
MOVE.L GRAFGLOBALS(A5),A4 ;POINT TO QUICKDRAW GLOBALS
MOVE.L THEPORT(A4),A0 ;GET CURRENT GRAFPORT
LEA INREC(A6),A1 ;POINT TO FMINPUT RECORD
MOVE TXFONT(A0),(A1)+ ;GET TXFONT FROM THEPORT
MOVE TXSIZE(A0),(A1)+ ;GET TXSIZE FROM THEPORT
MOVE.B TXFACE(A0),(A1)+ ;GET TXFACE FROM THEPORT
ST (A1)+ ;ALWAYS SET NEEDBITS TRUE
MOVE DEVICE(A0),(A1)+ ;GET DEVICE FROM THEPORT
MOVE.L NUMER(A6),A0 ;POINT TO NUMER
MOVE.L (A0),(A1)+ ;INSTALL INPUT NUMER
MOVE.L DENOM(A6),A0 ;POINT TO DENOM
MOVE.L (A0),(A1)+ ;INSTALL INPUT DENOM
CLR.L -(SP) ;ROOM FOR FCN RESULT
PEA INREC(A6) ;PUSH INPUT RECORD
_SwapFont ;CALL FMSWAPFONT
MOVE.L (SP)+,A1 ;POP FMOUTPUT POINTER
MOVE.L A1,FONTPTR(A4) ;STASH FMOUTPTR FOR LATER
; determine scaled character extra, if applicable
clr.l characterExtra(a6) ; clear the character extra.
IF SCRIPT_CHAR_EXTRA THEN
move.l grafGlobals(a5),a0 ; load quickDraw globals. <23>
move.l qdChExtra(a0),d0 ; load the character extra. <23>
beq.s @zeroCharExtra ; yes -> skip call to scale.
bsr CalcCharExtra ; scale by point size, etc.
move.l d0,characterExtra(a6) ; store scaled character extra.
@zeroCharExtra
ENDIF
MOVE.L INFO(A6),A0 ;POINT TO VAR INFO RECORD
CLR.L (A0) ;INIT TO (0,0,0,0)
CLR.L 4(A0) ;ALL 4 WORDS
CLR.L D1 ;INIT WIDTH TO 0.0 <27-CEL>
MOVE.L A1, -(SP) ;Save off A1 to use for WidthTabHandle
MOVE.L WidthTabHandle, A1 ;Get the Width Table
MOVE.L (A1), A1 ;get the pointer
TST.B WidthIsSpline(A1) ;Is it a spline font
BEQ.S @doNormal ;No then branch normal
MOVE.L expandMem, A1 ; get low mem expand
MOVE.L ExpandMemRec.emSplineKey(A1), A1 ; Handle to splineKey
MOVE.L (A1), A1 ; pointer to splinekey
MOVE.L splineKeyRec.cacheHand(A1), D0 ; is there a cache
BEQ.S @bailForZeros
MOVE.L D0, A1 ; get Handle in addr reg
TST.L (A1) ; Is it purged
BEQ.S @bailForZeros ; bail since we have no cache
MOVE.L (A1), A1 ;get the pointer
WITH cache ;<13>
MOVE.W ascent(A1), (A0)+ ;Assign the Ascent value
MOVE.W descent(A1), (A0)+ ;Assign sfnt Descent
MOVE.W widMax(A1), (A0)+ ;Assign WidMax
MOVE.W leading(A1), (A0) ;Assign Leading
MOVE.W rOverHMax(A1), D1 ;get rExtraHang value <27-CEL>
ADD.W rightItalic(A1), D1 ;Add in possible italic slop <27-CEL>
ADD.W #3, D1 ;Add 3 for grid fitting slop <27-CEL>
if (hasDoubleByte) then
move.l fEncodingTablePointer(a1),encodingTable(a6) ; load encoding table pointer
endif
ENDWITH ;<13>
MOVE.L (SP)+, A1 ;Restore A1
BRA.S @cont ;Skip past byte assignments
@bailForZeros
CLR.L (A0)+ ;Zero out ascent and descent
CLR.L (A0)+ ;Zero out widMax and leading
MOVE.L (SP)+, A1 ;Restore A1
BRA.S @cont ;Skip past byte assignments
@doNormal ;<1.6-4april89-CEL>
MOVE.L (SP)+, A1 ;Restore A1
MOVE.B 13(A1),1(A0) ;FILL IN UNSIGNED ASCENT
MOVE.B 14(A1),3(A0) ;FILL IN UNSIGNED DESCENT
MOVE.B 15(A1),5(A0) ;FILL IN UNSIGNED WIDMAX
MOVE.B 16(A1),D0 ;GET SIGNED LEADING
EXT.W D0 ;SIGN EXTEND TO WORD
MOVE.W D0,6(A0) ;FILL IN LEADING
@cont ;Label to skip byte assignment
;
; UPDATE NUMER AND DENOM
;
MOVE.L NUMER(A6),A0 ;GET VAR ADDR
MOVE.L 18(A1),(A0) ;UPDATE NUMER
MOVE.L DENOM(A6),A0 ;GET VAR ADDR
MOVE.L 22(A1),(A0) ;UPDATE DENOM
MOVE.L expandMem,A0 ; get low memory expand pointer. <26>
MOVE.L ExpandMemRec.emSplineKey(A0),A0 ; get handle to splineKey globals. <26>
MOVE.L (A0), A0 ; get pointer to splineKey globals. <26>
CMP.W #-2, splineKeyRec.safeCount(A0) ;-2 means add penloc <28-CEL>
BNE.S @noPen ;skip penloc add <28-CEL>
MOVE.L thePort(A4),A1 ;GET CURRENT GRAFPORT <24-CEL/RWB>
MOVE.W PNLOC+H(A1),D0 ;add penlocation <28-CEL>
BLE.S @noPen ;skip if negative <28-CEL>
ADD.W D0,D1 ;add penlocation <28-CEL>
@noPen ADD.W #5, D1 ;ADD one for slop <27-CEL/RWB>
SWAP D1 ; <24-CEL/RWB>
MOVE.L D1, widthExtra(A6) ;save off width extra value <27-CEL>
MOVE.L D1, D3 ;Init to penloc + 1.0 <24-CEL/RWB>
MOVE.W #-1, splineKeyRec.safeCount(A0) ; init to -1 for flagging <26>
MOVE.L TEXTADDR(A6),A0 ;POINT TO CHARACTERS
MOVE.L WidthTabHandle,A1 ;Get the Handle
MOVE.L (A1),A1 ;WidthPtr
if (hasDoubleByte) then
move.l encodingTable(a6),a2 ; load encoding table pointer
move.l a2,a3 ; copy pointer
adda #256,a3 ; offset pointer to low byte mapping table
endif
MOVE COUNT(A6),D2 ;GET CHARACTER COUNT
BRA.S MORE ;GO TO LOOP START
NEXTCH CLR D0 ;GET READY FOR BYTE
MOVE.B (A0)+,D0 ;GET A CHARACTER
if (hasDoubleByte) then
tst.l encodingTable(a6) ; have encoding table?
beq @singleByteFont ; no -> skip this
tst.b 0(a2,d0.w) ; high byte of double byte character?
beq @singleByteCharacter ; no -> skip this
tst.w d2 ; more bytes left in text?
ble @remapHighByte ; no -> remap the high byte
sub.w #1,d2 ; decrement the text count
clr.w d4 ; clear high byte of low word
move.b (a0)+,d4 ; grab the low byte and increment the text pointer
tst.b 0(a3,d4.w) ; is the low byte valid?
bne @measureHighByte ; yes -> use the high byte for the width
@remapHighByte
move.b #1,d0 ; remap the high byte to the missing character
@singleByteFont
@singleByteCharacter
@measureHighByte
endif
LSL #2,D0 ;QUAD FOR TABLE OFFSET
ADD.L 0(A1,D0),D1 ;ADD FIXED POINT WIDTH
BVS OverFlow ;CHECK FOR POSSIBLE OVERFLOW <24-CEL/RWB>
MOVE.L D1, D3 ;save of safe length <24-CEL/RWB>
CMP #$80,D0 ;space character? <jdt 14Mar90>
BEQ.S MORE ;skip character extra <jdt 14Mar90>
ADD.L characterExtra(A6),D1 ;add in character extra <jdt 14Mar90>
BVS OverFlow ;if overflow, set to big positive <24-CEL/RWB>
MOVE.L D1, D3 ;save of safe length <24-CEL/RWB>
MORE DBRA D2,NEXTCH ;LOOP FOR ALL CHARS
BRA.S noOverFlow ;Branch around overflow corrections <24-CEL/RWB>
OverFlow
ADDQ #1, D2 ;Add back 1 to the remaining count <24-CEL/RWB>
NEG D2 ;Negate for addition <24-CEL/RWB>
ADD.W Count(A6), D2 ;newCount = OrigCount - remainder <24-CEL/RWB>
MOVE.L expandMem,A0 ; get low memory expand pointer. <24-CEL/RWB>
MOVE.L ExpandMemRec.emSplineKey(A0),A0 ; get handle to splineKey globals. <24-CEL/RWB>
MOVE.L (A0), A0 ; get pointer to splineKey globals. <24-CEL/RWB>
MOVE.W D2, splineKeyRec.safeCount(A0) ; new count <24-CEL/RWB>
MOVE.L D3, D1 ;restore safe length <24-CEL/RWB>
noOverFlow ; <24-CEL/RWB>
SUB.L widthExtra(A6), D1 ;sub widthExtra calc from width <27-CEL>
MOVE.L D1,fixTxWid(A4) ;STASH FIXED POINT WIDTH
SWAP D1 ;GET HI WORD = INTEGER PORTION
MOVE D1,RESULT(A6) ;UPDATE FUNCTION RESULT
MOVEM.L (SP)+,D3/A4 ;RESTORE REG <24-CEL/RWB>
if (hasDoubleByte) then
movem.l (sp)+,d4/a2-a3 ; restore double-byte registers
endif
UNLINK PARAMSIZE,'STDTXMEA'
IF (SCRIPT_CHAR_EXTRA OR hasDoubleByte) THEN ;<1.4-4april89-CEL> <6> CEL
PROC
EXPORT BWMeasureText
IMPORT JStdTxMeas
IF SCRIPT_CHAR_EXTRA THEN
IMPORT CalcCharExtra
ENDIF
;--------------------------------------------------------------------
;
; PROCEDURE MeasureText(count: INTEGER; textAddr,charLocs: Ptr);
;
; Measure some text, returning (scaled) screen widths in charlocs.
;
; Charlocs points to an array of count+1 integers.
;
; Modification History
; 29Oct86 CRC Call textMeasProc via TextWidth for the benefit of
; ThinkÕs Macintosh Pascal. (Margie TextEdit used to use
; TextWidth but changed to MeasureText for efficiency;
; Think added styles to TextEdit inside the bottleneck
; procs that no longer got called. This calls the bottleneck
; proc only if it is different from StdTxMeas, since the
; speed hit is appreciable.)
; 05Nov86 CRC fixed register bug (grafport clobbered)
PARAMSIZE EQU 10
COUNT EQU PARAMSIZE+8-2 ;WORD
TEXTADDR EQU COUNT-4 ;LONG, Ptr to ASCII
CHARLOCS EQU TEXTADDR-4 ;LONG, Ptr to output array
INREC EQU -16 ;FMInput record
characterExtra EQU INREC-4 ;Long
encodingTable EQU characterExtra-4 ;LONG
IF SCRIPT_CHAR_EXTRA THEN ; <13> pke
numer EQU encodingTable-4 ; <13> pke
denom EQU numer-4 ; <13> pke
VARSIZE EQU denom ; <13> pke
ELSE ; <13> pke
VARSIZE EQU encodingTable
ENDIF ; <13> pke
StdTxMeasTrap EQU $ED
BWMeasureText
LINK A6,#VARSIZE ;ALLOCATE LOCALS
move.l #$00010001,numer(a6) ; set numerator to one/one
move.l #$00010001,denom(a6) ; set denominator to one/one
if (hasDoubleByte) then
move.l d7,-(sp) ; save low byte scratch register
endif
MOVEM.L D3-D6/A2-A4,-(SP) ;SAVE REGS
MOVE.L TextAddr(A6),A2
MOVE.L CharLocs(A6),A3
MOVE Count(A6),D3
MOVEQ #0,D4 ;INIT WIDTH TO 0.0
MOVE.L GRAFGLOBALS(A5),A4 ;POINT TO QUICKDRAW GLOBALS
MOVE.L THEPORT(A4),A0 ;GET CURRENT GRAFPORT
; if there is a txMeasProc not equal to StdTxMeas, call CharWidth instead
MOVE.L grafProcs(A0),D0 ;are there overridden graf procs?
BEQ.S useSwapFont
MOVE.L D0,A1
MOVE.L txMeasProc(A1),D0
lea JStdTxMeas,a1 ; <18> DTY
MOVE.L (a1),A1
CMP.L (A1),D0
BEQ.S useSwapFont
MOVEQ #0,D6 ;furthest character right so far
MOVEQ #0,D5 ;sum to add in to fix text width
SUBQ #2,SP ;make room for the returned width
nextChar
MOVE.L A2,-(SP)
CLR -(SP)
MOVE D4,-(SP)
_TextWidth ;Call through the trap if system
MOVE (SP),D0 ;get the width
CMP D6,D0 ;is it smaller than the last measurement?
BGE.S @notSmaller ;if this is equal to or larger than last, no prob.
ADD D6,D5 ;if smaller, add last measurement to sum
@notSmaller
ADD D5,D0 ;add sum to character position
MOVE D0,(A3)+
MOVE (SP),D6 ;make this measure into last measure (for next time)
ADDQ #1,D4
CMP D3,D4
BLE.S nextChar ;LOOP FOR COUNT+1 CHARLOCS
ADDQ #2,SP ;toss character width
IF SCRIPT_CHAR_EXTRA THEN ; <13> pke
move.w numer+h(a6),d3 ; set up for scaling <13> pke
move.w denom+h(a6),d4 ; set up for scaling <13> pke
bra DoMeasureTextScaling ; go do scaling <13> pke
ELSE ; <13> pke
BRA NoScale
ENDIF ; <13> pke
useSwapFont
;
; Call swapfont to set up width table and return numer,denom:
;
LEA INREC(A6),A1 ;POINT TO FMINPUT RECORD
MOVE TXFONT(A0),(A1)+ ;GET TXFONT FROM THEPORT
MOVE TXSIZE(A0),(A1)+ ;GET TXSIZE FROM THEPORT
MOVE.B TXFACE(A0),(A1)+ ;GET TXFACE FROM THEPORT
ST (A1)+ ;ALWAYS SET NEEDBITS TRUE
MOVE DEVICE(A0),(A1)+ ;GET DEVICE FROM THEPORT
IF SCRIPT_CHAR_EXTRA THEN ; <13> pke
MOVE.L numer(a6),(A1)+ ;supply local numer <13> pke
MOVE.L denom(a6),(A1)+ ;supply local denom <13> pke
ELSE ; <13> pke
MOVE.L #$00010001,(A1)+ ;INSTALL INPUT NUMER = 1,1
MOVE.L #$00010001,(A1)+ ;INSTALL INPUT DENOM = 1,1
ENDIF ; <13> pke
CLR.L -(SP) ;ROOM FOR FCN RESULT
PEA INREC(A6) ;PUSH INPUT RECORD
_SwapFont ;CALL FMSWAPFONT
;
; Determine scaled character extra, if applicable:
;
clr.l characterExtra(a6) ; clear the character extra.
IF SCRIPT_CHAR_EXTRA THEN
move.l grafGlobals(a5),a0 ; load quickDraw globals. <23>
move.l qdChExtra(a0),d0 ; load the character extra. <23>
beq.s @zeroCharExtra ; yes -> skip call to scale.
bsr CalcCharExtra ; scale by point size, etc.
move.l d0,characterExtra(a6) ; store scaled character extra.
@zeroCharExtra
ENDIF
;
; Step thru characters, adding up unscaled widths and storing in charLocs:
;
MOVE.L WidthTabHandle,A1 ;Get the Handle
MOVE.L (A1),A1 ;WidthPtr
if (hasDoubleByte) then
clr.l encodingTable(a6) ; assume no encoding table
tst.b WidthIsSpline(a1) ; have TrueType cache?
beq.s @notTrueType ; no, skip this
move.l expandMem,a0 ; load expanded memory pointer
move.l ExpandMemRec.emSplineKey(a0),a0 ; load TrueType globals handle
move.l (a0),a0 ; load TrueType globals pointer
move.l splineKeyRec.cacheHand(a0),d0 ; do we have a cache?
beq.s @cacheMissing ; no, skip this
move.l d0,a0 ; load current cache handle
move.l (a0),d0 ; cache purged from memory?
beq.s @cachePurged ; yes, skip this
move.l d0,a0 ; load current cache pointer
move.l cache.fEncodingTablePointer(a0),a4 ; load encoding table pointer
move.l a4,encodingTable(a6) ; keep a copy for testing
@notTrueType
@cacheMissing
@cachePurged
endif
NEXTCH SWAP D4 ;GET HI WORD OF WIDTH
MOVE.W D4,(A3)+ ;STORE IN CHARLOCS
SWAP D4 ;RETURN WIDTH TO FIXED POINT
CLR D0 ;GET READY FOR BYTE
MOVE.B (A2)+,D0 ;GET A CHARACTER
if (hasDoubleByte) then
tst.l encodingTable(a6) ; have encoding table?
beq @singleByteFont ; no -> skip this
tst.b 0(a4,d0.w) ; high byte of double byte character?
beq @singleByteCharacter ; no -> skip this
tst.w d3 ; more bytes left in text?
ble @remapHighByte ; no -> remap the high byte
sub.w #1,d3 ; decrement the text count
clr.w d7 ; clear high byte of low word
move.b (a2)+,d7 ; grab the low byte and increment the text pointer
move.l a4,a0 ; load the high byte mapping table pointer
adda #256,a0 ; offset to the low byte mapping table
tst.b 0(a0,d7.w) ; is the low byte valid?
beq @remapHighByte ; no -> remap the high byte
lsl #2,d0 ; convert to fixed width table offset
add.l 0(a1,d0),d4 ; add fixed point width
add.l characterExtra(a6),d4 ; always add in character extra
swap d4 ; get integer portion of accumulated width
move.w d4,(a3)+ ; ouch, store integer width into charLocs array
swap d4 ; restore d1 to fixed point
bra MORE ; restart the loop
@remapHighByte
move.b #1,d0 ; remap the high byte to the missing character
@singleByteFont
@singleByteCharacter
endif
LSL #2,D0 ;QUAD FOR TABLE OFFSET
ADD.L 0(A1,D0),D4 ;ADD FIXED POINT WIDTH
CMP #$80,D0 ;is it a space? <jdt 14Mar90>
BEQ.S MORE ;skip character extra if so <jdt 14Mar90>
ADD.L characterExtra(A6),D4 ;add in character extra <jdt 14Mar90>
MORE DBRA D3,NEXTCH ;LOOP FOR COUNT+1 CHARLOCS <jdt 14Mar90>
;
; if font is horizontally stretched, scale all widths accordingly
;
MOVE.L (SP)+,A0 ;POP FMOUTPUT POINTER
MOVE.W 18+H(A0),D3 ;GET NUMER.H
MOVE.W 22+H(A0),D4 ;GET DENOM.H
DoMeasureTextScaling ; <13> pke
CMP D3,D4 ;IS NUMER.H = DENOM.H ?
BEQ.S NOSCALE ;YES, SKIP SCALING
MOVE.L CHARLOCS(A6),A2 ;NO, POINT TO CHARLOCS
MOVE COUNT(A6),D2 ;GET CHARACTER COUNT
NEXTCH2 MOVE (A2),D0 ;GET CHARLOC
MULU D3,D0 ;MUL BY NUMER
DIVU D4,D0 ;DIV BY DENOM
MOVE D0,(A2)+ ;UPDATE CHARLOC
DBRA D2,NEXTCH2 ;LOOP FOR COUNT+1 CHARLOCS
NOSCALE
MOVEM.L (SP)+,D3-D6/A2-A4 ;RESTORE REGS
if (hasDoubleByte) then
move.l (sp)+,d7 ; restore low byte scratch register
endif
UNLK A6
MOVE.L (SP)+,A0
ADD #PARAMSIZE,SP
JMP (A0)
ENDIF
CASE OFF
END
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