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boot3/QuickDraw/Patches/DrawPicturePortable.a
Elliot Nunn 5b0f0cc134 Bring in CubeE sources 
Resource forks are included only for .rsrc files. These are DeRezzed into their data fork. 'ckid' resources, from the Projector VCS, are not included.

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2017-12-26 10:02:57 +08:00

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;
; File: DrawPicturePortable.a
;
; Contains: xxx put contents here xxx
;
; Written by: xxx put writers here xxx
;
; Copyright: © 1990 by Apple Computer, Inc., all rights reserved.
;
; This file is used in these builds: BigBang Sys606
;
; Change History (most recent first):
;
; <18> 4/10/91 KON mrr, gbm,csd: Calculate numer and denom to 32-bits, and then
; shift to make it fit in 15-bits if necessary. This fixes the
; problem where text was not scaling uniformly in pictures.
; <17> 4/9/91 KON csd: When reducing a picture, text would not reduce properly
; since both numer and denom are small and the divide underflows.
; The fix is not to reduce numer/denom if the picture is being
; scaled down.
; <16> 3/23/91 KON csd, WRKSHT#SAH-QD-58: ReduceD3D4 would hang because MapRatio
; would return a zero result. I removed calls to MapRatio (since
; ReduceD3D4 does the same work) and changed ReduceD3D4 so it
; won't hang.
; <15> 3/22/91 KON CSD, WRKSHT#7P-WA-054: Large text does not draw correctly since
; fromRect scaled by numer/denom can overflow a word. A small
; problem with the last fix was discovered when updating the color
; versions.
; <14> 3/22/91 KON CSD, WRKSHT#7P-WA-054: Large text does not draw correctly since
; fromRect scaled by numer/denom can overflow a word.
; <13> 3/20/91 KON gbm, BRC#SAH-QD-053: StdOpCodeProc sets the denom of a picture
; created with OpenCPicture. This is a problem since DrawPicture
; reduced numer/denom, and blasting denom to a large value makes
; the fraction invalid. Now numer/denom are reduced only after the
; header has been processed.
; <12> 3/13/91 JT Added the glyph state opcode support to picture drawing 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. Code checked by KON
; and BAL. BRC numbers 82651 and 79185. Worksheet number KON-022.
; <11> 2/15/91 KON stb BRC #82511: PixMaps with nil color tables are not drawn
; properly.
; <10> 1/14/91 KON Reduce Numer and Denom by GCD when drawing a picture. These
; overflow on higher DPI devices. [CEL]
; <9> 12/13/90 KON Check for color table signature before throwing it away. [smc]
; <8> 12/3/90 KON Make pnSize scale so 1-pixel wide lines scale. [smc]
; <7> 9/12/90 KON Get pictures in sync with MacII and ci picture changes.
; <6> 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.
; <5> 8/2/90 gbm get rid of a few more warnings
; <4> 5/27/90 JT Moved the saved script manager fields to the bottom of the
; DrawPicture stack frame so we don't break up the picture state
; record. Also made this patch not fall into the ROM since the
; stack frame no longer matches. This costs us a few extra
; instructions, but we leave the two reserved fields available in
; the picture state record.
; <3> 5/2/90 JT Copied the Script Manager specific changes from DrawPicture to
; this patch set.
; <2> 4/16/90 KON Don't dereference stdbits address twice.
; <2> 4/16/90 KON Don't dereference stdbits address twice.
;
; To Do:
;
;
; Most of the code following this point is filched from pictures.a.
;
; General notes:
;
; The Color QD version of DrawPicture has an extended play state record.
; We want to jump into ROM here and there in order to save system heap
; space. To do this, we must keep the stack frame layout below A6 the
; same as in the existing ROM. So, we do some slimy tricks to break the
; play state record into two parts: the existing part, and an extension
; placed below other stuff in the stack frame.
;
PortableDrawPicture PROC EXPORT
IMPORT PicItemPortable,ReduceD3D4
;------------------------------------------------------------------
;
; PROCEDURE DrawPicture(myPicture: PicHandle; dstRect: Rect);
; Fix File Date Patch# Fix Routine(s) Routine(s) Fixed
;AppleSystemPatch DrawPicturePatch.a 01Jan1904 #??? (DrawPicture) (DrawPicture)
;
;--------------------------------------------
;
; OFFSETS WITHIN A PICTURE PLAY STATE RECORD:
;
; *** NOTE *** This information appears in two places: DrawPicture
; and PicItemPortable.
;
THERECT EQU 0 ;RECT
PENLOC EQU THERECT+8 ;POINT
TEXTLOC EQU PENLOC+4 ;POINT
OVALSIZE EQU TEXTLOC+4 ;POINT
FROMRECT EQU OVALSIZE+4 ;RECT
TORECT EQU FROMRECT+8 ;RECT
NUMER EQU TORECT+8 ;POINT
DENOM EQU NUMER+4 ;POINT
THECLIP EQU DENOM+4 ;RGNHANDLE
USERCLIP EQU THECLIP+4 ;RGNHANDLE
NEWHFRAC EQU USERCLIP+4 ;(WORD) UPDATED FRACTION RECEIVED <C933 DBG>
TXHFRAC EQU NEWHFRAC+2 ;(WORD) FRACTIONAL TEXT POSITION <C933 DBG>
PLAYVERSION EQU TXHFRAC+2 ;(WORD) PICTURE VERSION <C933 DBG>
PLAYREC EQU PLAYVERSION+2 ;TOTAL SIZE <C933 DBG>
TEMPPIXPAT EQU THERECT-PORTREC-2 ;PIXPAT FOR PLAYING NEW PICS IN OLD PORTS
FontMappingTbl EQU TEMPPIXPAT-4 ;Handle to array of old,new font id pairs
PSreserve1 EQU FontMappingTbl-4 ;reserved
PSreserve2 EQU PSreserve1-4 ;reserved
PLAYREC2 EQU TEMPPIXPAT+2-PSreserve2 ;TOTAL SIZE
;
; A6 OFFSETS OF PARAMS AND LOCALS AFTER LINK:
;
PARAMSIZE EQU 8
MYPICTURE EQU PARAMSIZE+8-4 ;LONG, PICHANDLE
DSTRECT EQU MYPICTURE-4 ;LONG, ADDR OF RECT
PLAYSTATE EQU -PLAYREC ;PICTURE PLAY STATE RECORD
SAVEPORT EQU PLAYSTATE-PORTREC ;GRAFPORT RECORD
SAVECURSTATE EQU SAVEPORT-2 ;(WORD) Save state of pic handle <C933 DBG>
PLAYSTATE2 EQU SAVECURSTATE-PLAYREC2
saveQdRunSlop equ PLAYSTATE2-4 ;Fixed <6>
saveQdChExtra equ saveQdRunSlop-4 ;Fixed <6>
saveOutline equ saveQdChExtra-1 ;Byte
savePreserve equ saveOutline-1 ;Byte
saveFractional equ savePreserve-1 ;Byte
saveUnscaled equ saveFractional-1 ;Byte
VARSIZE EQU saveUnscaled ;TOTAL BYTES OF LOCALS
LINK A6,#VARSIZE ;ALLOCATE LOCALS
MOVEM.L D3-D7/A2-A4,-(SP) ;SAVE REGISTERS
MOVE.L GRAFGLOBALS(A5),A4 ;POINT TO QUICKDRAW GLOBALS
MOVE.L THEPORT(A4),A3 ;POINT TO CURRENT GRAFPORT
TST.L MYPICTURE(A6) ;IS PICHANDLE NIL ?
BEQ GOHOME ;YES, QUIT
;--------------------------------------------------
;
; SET UP NUMER AND QUIT IF DSTRECT WIDTH OR HEIGHT IS <= 0
; COPY DSTRECT INTO TORECT
;
MOVE.L DSTRECT(A6),A0 ;POINT TO DSTRECT
MOVE RIGHT(A0),D0
SUB LEFT(A0),D0 ;CALC DST WIDTH
BLE GOHOME ;QUIT IF WIDTH <= 0
MOVE D0,PLAYSTATE+NUMER+H(A6) ;NUMER.H := DST WIDTH
MOVE BOTTOM(A0),D0
SUB TOP(A0),D0 ;CALC DST HEIGHT
BLE GOHOME ;QUIT IF HEIGHT <= 0
MOVE D0,PLAYSTATE+NUMER+V(A6) ;NUMER.V := DST HEIGHT
LEA PLAYSTATE+TORECT(A6),A1
MOVE.L (A0)+,(A1)+
MOVE.L (A0)+,(A1)+ ;TORECT := DSTRECT
;--------------------------------------------------
;
; SET UP DENOM AND QUIT IF PICFRAME WIDTH OR HEIGHT IS <= 0
; COPY PICFRAME INTO FROMRECT.
;
MOVE.L MYPICTURE(A6),A0 ;GET PICHANDLE
MOVE.L (A0),A0 ;DE-REFERENCE IT
MOVE.L A0, D0 ;SET CONDITION CODE <FJL PMAB270>
BEQ GOHOME ;IF INVALID POINTER -> EXIT <FJL PMAB270>
LEA PICFRAME(A0),A0 ;POINT TO PICTURE FRAME
MOVE RIGHT(A0),D0
SUB LEFT(A0),D0 ;CALC SRC WIDTH
BLE GOHOME ;QUIT IF WIDTH <= 0
MOVE D0,PLAYSTATE+DENOM+H(A6) ;DENOM.H := SRC WIDTH
MOVE BOTTOM(A0),D0
SUB TOP(A0),D0 ;CALC SRC HEIGHT
BLE GOHOME ;QUIT IF HEIGHT <= 0
MOVE D0,PLAYSTATE+DENOM+V(A6) ;DENOM.V := SRC HEIGHT
;
; Divide Numer and Denom for width and height by GCD to prevent overflow.
; <KON 7/1/91>
;
; CAN'T DO THIS HERE SINCE STDOPCODEPROC CLOBBERS DENOM WITH THE RECTANGLE FROM
; THE HEADER. <KON 20MAR91>
;
; move.l PLAYSTATE+NUMER(A6),d3 ;reduce both high and low words of d3...
; move.l PLAYSTATE+denom(A6),d4 ;...and d4 by GCD
; jsr ReduceD3D4
; move.l d3,PLAYSTATE+NUMER(A6) ;save results
; move.l d4,PLAYSTATE+denom(A6)
;
; End <KON 7/1/91>
;
LEA PLAYSTATE+FROMRECT(A6),A1 ;POINT TO FROMRECT
MOVE.L (A0)+,(A1)+
MOVE.L (A0)+,(A1)+ ;FROMRECT := PICFRAME
;---------------------------------------------------
;
; PRESERVE THE CURRENT GRAFPORT IN SAVEPORT
;
MOVE.L A3,A0 ;SRC = THEPORT
LEA SAVEPORT(A6),A1 ;DST = SAVEPORT
MOVEQ #PORTREC/2-1,D0 ;INIT DBRA COUNT
SAVELP MOVE.W (A0)+,(A1)+ ;COPY A WORD
DBRA D0,SAVELP ;LOOP ENTIRE PORT
;---------------------------------------------------
;
; PRESERVE AND INIT THE CURRENT LINE-LAYOUT STATE
;
IF SCRIPT_CHAR_EXTRA THEN
move.l grafGlobals(a5),a0 ; load quickDraw globals. <6>
move.l qdChExtra(a0),saveQdChExtra(a6) ; save character extra amount. <6>
move.l qdRunSlop(a0),saveQdRunSlop(a6) ; save run slop amount. <6>
clr.l qdChExtra(a0) ; clear character extra amount. <6>
clr.l qdRunSlop(a0) ; clear run slop amount. <6>
ENDIF
;---------------------------------------------------
;
; PRESERVE THE INITIAL GLYPH RENDERING STATE
;
IF hasGlyphState THEN
btst.b #splinePreferred,HiliteMode ; bit flag set in HiliteMode?
sne.b saveOutline(a6) ; yes, set outline preferred flag
btst.b #preserveGlyph,HiliteMode ; bit flag set in HiliteMode?
sne.b savePreserve(a6) ; yes, set preserve glyph flag
move.b FractEnable,saveFractional(a6) ; save fractional widths flag
move.b FScaleDisable,saveUnscaled(a6) ; save scale disable flag
ENDIF
;----------------------------------------
;
; INIT GLOBAL VARS:
;
MOVE.L MYPICTURE(A6), A0 ;SAVE STATE OF PICTURE HANDLE <FJL PMAB270>
_HGetState
MOVE.B D0, SAVECURSTATE(A6) ;SAVE IN STACK FRAME
MOVE.L MYPICTURE(A6), A0 ;MAKE IT NON-PURGEABLE FOR THE DURATION
_HNoPurge ; <FJL PMAB270>
CLR.L PATALIGN(A4) ;PATALIGN := (0,0)
MOVE.L MYPICTURE(A6),PLAYPIC(A4) ;SAVE PICTURE FOR STDGETPIC
MOVE.L #PICDATA,PLAYINDEX(A4) ;INIT INDEX TO FIRST OPCODE
;----------------------------------------
;
; INIT PLAY STATE RECORD:
;
LEA PLAYSTATE(A6),A0
CLR.L (A0)+ ;THERECT := (0,0,0,0)
CLR.L (A0)+
CLR.L (A0)+ ;PENLOC := (0,0)
CLR.L (A0)+ ;TEXTLOC := (0,0)
CLR.L (A0)+ ;OVALSIZE := (0,0)
;FROMRECT SET UP
;TORECT SET UP
;NUMER SET UP
;DENOM SET UP
MOVE.L CLIPRGN(A3),PLAYSTATE+USERCLIP(A6) ;SAVE USER CLIPRGN
CLR.L -(SP)
_NEWRGN
MOVE.L (SP)+,PLAYSTATE+THECLIP(A6) ;ALLOCATE THECLIP
; MOVE #$8000,D0 ;INITIALIZE FRACTIONAL PARTS
; MOVE D0,PLAYSTATE+TXHFRAC(A6) ;TXHFRAC = 1/2
; MOVE D0,PLAYSTATE+FRACFLAG(A6) ;NEW FRACTION = 1/2
IF withFonts THEN
;
; Allocate handle for mapping of fond id's we have seen so far
;
; Format of FontMappingTbl handle is:
; handle size [long]
; # of entries - 1 used [word]
; oldID1,newID1 ... oldIDn,newIDn
FontMapSize equ 25*4
doFontList
moveq #FontMapSize+6,d0 ;initial size for 50 entries
_NewHandle
move.l a0,PLAYSTATE+FontMappingTbl(a6) ;save picFontList handle in picSave record
beq.s @noHandle
move.l (a0),a0 ;point into fontList
moveq #FontMapSize+6,d0 ;initial size for 25 entries
move.l d0,(a0)+
move.w #-1,(a0) ; 0 entries
; clr.l (a0)+ ; 1 entry, first oldID = 0
; clr.w (a0) ; first newID = 0
@noHandle
ENDIF ;withFonts
;--------------------------------------------------------
;
; INIT MOST FIELDS OF THEPORT
;
CLR.L -(SP)
_NEWRGN
MOVE.L (SP)+,CLIPRGN(A3) ;ALLOCATE TEMP CLIPRGN
LEA BKPAT(A3),A0 ;POINT TO BKPAT
CLR.L (A0)+ ;BKPAT := WHITE
CLR.L (A0)+
MOVEQ #-1,D0 ;GET SOME BLACK
MOVE.L D0,(A0)+ ;fillPat := BLACK
MOVE.L D0,(A0)+
CLR.L (A0)+ ;PNLOC := (0,0)
MOVE.L #$00010001,D1
MOVE.L D1,(A0)+ ;pnSize := (1,1)
MOVE #8,(A0)+ ;pnMode := patCopy
MOVE.L D0,(A0)+ ;pnPat := black
MOVE.L D0,(A0)+
ADD #2,A0 ;skip over pnVis
CLR.L (A0)+ ;txFont, txFace := 0
MOVE #1,(A0)+ ;txMode := srcOr
CLR (A0)+ ;txSize := 0;
CLR.L (A0)+ ;spExtra := 0.0;
MOVE.L #blackColor,(A0)+ ;FGCOLOR := blackColor
MOVE.L #whiteColor,(A0)+ ;BKCOLOR := whiteColor
;LEAVE COLRBIT ALONE
;LEAVE PATSTRETCH ALONE
;LEAVE PICSAVE ALONE
;LEAVE RGNSAVE ALONE
;LEAVE POLYSAVE ALONE
;LEAVE GRAFPROCS ALONE
;--------------------------------------------------
;
PEA PNSIZE(A3) ;Scale initial pensize <KON 27NOV90>
PEA FROMRECT+PLAYSTATE(A6) ;so that 1,1 lines scale
PEA TORECT+PLAYSTATE(A6)
_SCALEPT ;SCALE PNSIZE
;---------------------------------------------------
;
; NOW DRAW THE PICTURE:
; REPEAT UNTIL NOT PicItemPortable(playState);
;
DRAWPIC MOVE #PICTVERSION,PLAYSTATE+PLAYVERSION(A6) ;DEFAULT TO OLD PICTURE
MORE CLR.B -(SP) ;MAKE ROOM FOR FCN RESULT
PEA PLAYSTATE(A6) ;PUSH ADDR OF PLAYSTATE
JSR PicItemPortable ;DRAW ONE PICTURE ITEM
MOVE.B (SP)+,D0 ;POP BOOLEAN RESULT
BNE MORE ;LOOP TILL FALSE
;-----------------------------------------------------
;
; DISCARD HANDLES AND RESTORE GRAFPORT STATE
;
DONE MOVE.L MYPICTURE(A6),A0 ;GET PIC HANDLE <FJL PMAB270>
MOVE.B SAVECURSTATE(A6),D0 ;RESTORE STATE OF PICTURE HANDLE
_HSetState ; <FJL PMAB270>
MOVE.L PLAYSTATE+THECLIP(A6),A0 ;GET THECLIP RGNHANDLE
_DisposHandle ;DISCARD IT
IF withFonts THEN
MOVE.L PLAYSTATE+FontMappingTbl(A6),A0 ;get the fontID association table
_DisposHandle ;DISCARD IT
ENDIF
MOVE.L CLIPRGN(A3),A0 ;GET TEMPCLIP
_DisposHandle ;DISCARD IT
LEA SAVEPORT(A6),A0 ;SRC = SAVEPORT
MOVEQ #PORTREC/2-1,D0 ;INIT DBRA COUNT
DONELP MOVE.W (A0)+,(A3)+ ;COPY A WORD INTO THEPORT
DBRA D0,DONELP ;LOOP ENTIRE PORT
;---------------------------------------------------
;
; RESTORE THE GLYPH RENDERING STATE
;
IF hasGlyphState THEN
move.b saveOutline(a6),-(sp) ; push saved outline preferred flag
_SetOutlinePreferred ; restore saved outline preferred
move.b savePreserve(a6),-(sp) ; push saved preserve glyph flag
_SetPreserveGlyph ; restore saved preserve glyph
move.b saveFractional(a6),-(sp) ; push saved fractional widths flag
_SetFractEnable ; restore saved fractional widths
move.b saveUnscaled(a6),-(sp) ; push saved scale disable flag
_SetFScaleDisable ; restore saved scale disable
ENDIF
;---------------------------------------------------
;
; RESTORE THE LINE-LAYOUT STATE
;
IF SCRIPT_CHAR_EXTRA THEN
move.l grafGlobals(a5),a0 ; load quickDraw globals. <6>
move.l saveQdChExtra(a6),qdChExtra(a0) ; restore character extra amount. <6>
move.l saveQdRunSlop(a6),qdRunSlop(a0) ; restore run slop amount. <6>
ENDIF
;---------------------------------------------------
;
; RESTORE GLOBAL VARS AND QUIT
;
CLR.L PATALIGN(A4) ;RESTORE PATALIGN TO (0,0)
CLR.L PLAYPIC(A4) ;SET PLAYPIC TO NIL
CLR.L PLAYINDEX(A4) ;AND PLAYINDEX TO 0
GOHOME MOVEM.L (SP)+,D3-D7/A2-A4 ;RESTORE REGISTERS
UNLINK PARAMSIZE,'DRAWPICT' ;destroys condition codes
ENDPROC
PicItemPortable FUNC EXPORT
IMPORT GetPicData,ScalePt,MapPt,MapRect,MapRgn,MapPoly,GetUByte,GetWord,GetLong
IMPORT NewRgn,CopyRgn,SectRgn,UnpackBits,MapRatio,GetPicPixPat,GETPICTABLE,GETPM1Deep
IMPORT MapPt1
IMPORT StdOpcodeProc,RGB2OLD,SkipPicData,RGB2Pixel,MapMode
IMPORT GETSBYTE, GETUBYTE
IMPORT GETWORD,ReduceD3D4
;------------------------------------------------------------------
;
; FUNCTION PicItem1(VAR playState: PicPlayRec): BOOLEAN;
;
; Fix File Date Patch# Fix Routine(s) Routine(s) Fixed
;AppleSystemPatch DrawPicturePatch.a 01Jan1904 #??? (PicItem1) (PicItem1)
;
; Draws one picture item, updating playState and thePort.
; Returns FALSE when an endPic opCode is encountered.
; The only state modified other than thePort and playState is patAlign.
;
; When reading from an NPIC, skips to word boundary before fetching
; word-long opcode.
;--------------------------------------------
;
; OFFSETS WITHIN A PICTURE PLAY STATE RECORD:
;
; *** NOTE *** This information appears in two places: DrawPicture
; and PICITEM1.
;
;--------------------------------------------
;
; OFFSETS WITHIN A PICTURE PLAY STATE RECORD:
;
THERECT EQU 0 ;RECT
PENLOC EQU THERECT+8 ;POINT
TEXTLOC EQU PENLOC+4 ;POINT
OVALSIZE EQU TEXTLOC+4 ;POINT
FROMRECT EQU OVALSIZE+4 ;RECT
TORECT EQU FROMRECT+8 ;RECT
NUMER EQU TORECT+8 ;POINT
DENOM EQU NUMER+4 ;POINT
THECLIP EQU DENOM+4 ;RGNHANDLE
USERCLIP EQU THECLIP+4 ;RGNHANDLE
NEWHFRAC EQU USERCLIP+4 ;(WORD) UPDATED FRACTION RECEIVED <C933 DBG>
TXHFRAC EQU NEWHFRAC+2 ;(WORD) FRACTIONAL TEXT POSITION <C933 DBG>
PLAYVERSION EQU TXHFRAC+2 ;(WORD) PICTURE VERSION <C933 DBG>
PLAYREC EQU PLAYVERSION+2 ;TOTAL SIZE <C933 DBG>
IF withFonts THEN
TEMPPIXPAT EQU THERECT-PORTREC-2 ;PIXPAT FOR PLAYING NEW PICS IN OLD PORTS
FontMappingTbl EQU TEMPPIXPAT-4 ;Handle to array of old,new font id pairs
PSreserve1 EQU FontMappingTbl-4 ;reserved
PSreserve2 EQU PSreserve1-4 ;reserved
PLAYREC2 EQU TEMPPIXPAT+2-PSreserve2 ;TOTAL SIZE
ENDIF ;withFonts
;
; params:
;
PARAMSIZE EQU 4
RESULT EQU PARAMSIZE+8 ;BOOLEAN
PLAYSTATE EQU RESULT-4 ;LONG, PICHANDLE
;
; locals:
;
HANDLE1 EQU -4 ;HANDLE
HANDLE2 EQU HANDLE1-4 ;HANDLE
DSTRECT EQU HANDLE2-8 ;RECT (MUST BE BEFORE SRCRECT)
SRCRECT EQU DSTRECT-8 ;RECT (MUST FOLLOW DSTRECT)
SRCBITS EQU SRCRECT-14 ;BITMAP (Not used)
SAMEFLAG EQU SRCBITS-2 ;BOOLEAN
NEWPT EQU SAMEFLAG-4 ;LONG
TXDATA EQU NEWPT-256 ;UP TO 256 CHARACTERS,
;ALSO USED FOR PACKBUF !!!
;Also used by CTBitMap <19Feb87 DBG>
SRCPTR EQU TXDATA-4 ;LONG
DSTPTR EQU SRCPTR-4 ;LONG
SAVEDSP EQU DSTPTR-4 ;LONG
; Following is the extension to the stack frame in ROM
SRCPIX EQU SAVEDSP-PMREC ;SRCPIX
VARSIZE EQU SRCPIX ;TOTAL BYTES OF LOCALS
LINK A6,#VARSIZE ;ALLOCATE LOCALS
MOVEM.L D3-D7/A2-A4,-(SP) ;SAVE REGISTERS
MOVE.L SP,SAVEDSP(A6) ;REMEMBER STACK FOR ABORT
MOVE.L GRAFGLOBALS(A5),A4 ;POINT TO QUICKDRAW GLOBALS
MOVE.L THEPORT(A4),A3 ;POINT TO CURRENT GRAFPORT
; GET PICTURE OPCODE AND CHECK FOR END OF PICTURE.
CLR.B RESULT(A6) ;ASSUME END OF PICTURE
BSR GetPicOp ;READ OPCODE INTO D0
MOVE D0,D7 ;PUT IT IN D7
CMP #opEndPic,D7 ;IS THIS THE ENDPIC OPCODE ?
BEQ DONE ;=>YES, ALL DONE
BLO.S GoodOp ;=>GOOD OPCODE, CONTINUE
; IT'S AN OPCODE THAT WE DON'T KNOW HOW TO HANDLE. CALL THE OPCODE PROC.
LEA StdOpcodeProc,A0 ;USE STANDARD OPCODE PROC
USESTD MOVE.L PLAYSTATE(A6),A2 ;GET THE PLAYSTATE RECORD
PEA FROMRECT(A2) ;PUSH SRC RECT
PEA TORECT(A2) ;PUSH DST RECT
MOVE D7,-(SP) ;PUSH OPCODE
MOVE PLAYVERSION(A2),-(SP) ;PUSH VERSION
JSR (A0) ;CALL PROC
MOVE.B #1,RESULT(A6) ;FLAG NOT END OF PICTURE
BRA DONE ;=>DONE WITH THIS OPCODE
GoodOp MOVE.B #1,RESULT(A6) ;NOT END OF PICTURE
; CHECK FOR PARAM OPCODES $00..$1F
CMP #$20,D7 ;IS IT A PARAM OPCODE ?
BLO.S PARAMOP ;YES, GO TO IT
; GET LO AND HI NIBBLES OF OPCODE, AND CASE ON HI NIBBLE (NOUN).
MOVE.B D7,D0 ;COPY OPCODE
AND #$F0,D0 ;MASK FOR HI NIBBLE
BTST #3,D7 ;IS OPCODE BIT 3 SET ?
SNE SAMEFLAG(A6) ;REMEMBER IN SAMEFLAG
AND #$7,D7 ;GET VERB FROM LO NIBBLE
LSR #3,D0 ;DOUBLE HI NIBBLE FOR INDEX
MOVE NOUNJMP(D0),D0 ;GET JUMP OFFSET
JMP NOUNJMP(D0) ;TAKE CASE JUMP
NOUNJMP DC.W DONE-NOUNJMP ;NEVER TAKEN
DC.W DONE-NOUNJMP ;NEVER TAKEN
DC.W TXLNOP-NOUNJMP
DC.W RECTOP-NOUNJMP
DC.W RRECTOP-NOUNJMP
DC.W OVALOP-NOUNJMP
DC.W ARCOP-NOUNJMP
DC.W POLYOP-NOUNJMP
DC.W RGNOP-NOUNJMP
DC.W BITSOP-NOUNJMP
DC.W COMMOP-NOUNJMP
DC.W DONE-NOUNJMP ;OPCODE WITH NO DATA
DC.W DONE-NOUNJMP ;OPCODE WITH NO DATA
DC.W IGNORESHORT-NOUNJMP ;IGNORE WORD LENGTH, DATA
DC.W IGNORELONG-NOUNJMP ;IGNORE LONG LENGTH, DATA
DC.W IGNORELONG-NOUNJMP ;IGNORE LONG LENGTH, DATA
;---------------------------------------------------
;
; OPCODES $00..$1F DO NO DRAWING, THEY JUST SET PARAMETERS.
;
PARAMOP AND #$1F,D7 ;GET LO 5 BITS OF OPCODE
ADD D7,D7 ;DOUBLE PARAM FOR CASE INDEX
MOVE PARMJMP(D7),D0 ;GET CASE JUMP OFFSET
JMP PARMJMP(D0) ;TAKE CASE JUMP
PARMJMP DC.W DONE-PARMJMP ;OPCODE 0 IS PURPOSELY A NOP
DC.W XCLIP-PARMJMP ;OPCODE $01
DC.W XBKPAT-PARMJMP ;OPCODE $02
DC.W XTXFONT-PARMJMP ;OPCODE $03
DC.W XTXFACE-PARMJMP ;OPCODE $04
DC.W XTXMODE-PARMJMP ;OPCODE $05
DC.W XSPXTRA-PARMJMP ;OPCODE $06
DC.W XPNSIZE-PARMJMP ;OPCODE $07
DC.W XPNMODE-PARMJMP ;OPCODE $08
DC.W XPNPAT-PARMJMP ;OPCODE $09
DC.W XFILLPAT-PARMJMP ;OPCODE $0A
DC.W XOVSIZE-PARMJMP ;OPCODE $0B
DC.W XORIGIN-PARMJMP ;OPCODE $0C
DC.W XTXSIZE-PARMJMP ;OPCODE $0D
DC.W XFGCOL-PARMJMP ;OPCODE $0E
DC.W XBKCOL-PARMJMP ;OPCODE $0F
DC.W TXRATIO-PARMJMP ;OPCODE $10
DC.W VERSION-PARMJMP ;OPCODE $11
DC.W XBkPixPat-PARMJMP ;OPCODE $12
DC.W XPnPixPat-PARMJMP ;OPCODE $13
DC.W XFillPixPat-PARMJMP ;OPCODE $14
DC.W XPnLocHFrac-PARMJMP ;OPCODE $15
DC.W XChExtra-PARMJMP ;OPCODE $16
DC.W DONE-PARMJMP ;OPCODE $17
DC.W DONE-PARMJMP ;OPCODE $18 (opIFore)
DC.W DONE-PARMJMP ;OPCODE $19 (opIBack)
DC.W XRGBFGCOL-PARMJMP ;OPCODE $1A
DC.W XRGBBKCOL-PARMJMP ;OPCODE $1B
DC.W xHiliteMode-PARMJMP ;OPCODE $1C
DC.W xHiliteColor-PARMJMP ;OPCODE $1D
DC.W xDefHilite-PARMJMP ;OPCODE $1E
DC.W xOpColor-PARMJMP ;OPCODE $1F
XCLIP BSR GETHNDL ;COPY RGN INTO HANDLE1
IF noROM THEN
MOVE.L PLAYSTATE(A6),A2 ;POINT TO PLAYSTATE RECORD
MOVE.L HANDLE1(A6),-(SP) ;PUSH HANDLE1
MOVE.L THECLIP(A2),-(SP) ;PUSH PLAYSTATE THECLIP
XCLIP2 _COPYRGN ;COPY HANDLE1 INTO THECLIP
MOVE.L PLAYSTATE(A6),A2 ;POINT TO PLAYSTATE RECORD
MOVE.L HANDLE1(A6),-(SP) ;PUSH HANDLE1 TEMP
PEA FROMRECT(A2) ;PUSH FROMRECT
PEA TORECT(A2) ;PUSH TORECT
_MAPRGN ;MAP RGN INTO DST COORDS
MOVE.L PLAYSTATE(A6),A2 ;POINT TO PLAYSTATE RECORD
MOVE.L HANDLE1(A6),-(SP) ;PUSH MAPPED RGN
MOVE.L USERCLIP(A2),-(SP) ;PUSH ORIGINAL CLIP
MOVE.L CLIPRGN(A3),-(SP) ;PUSH DST = THEPORT^.CLIPRGN
_SECTRGN ;PUT INTERSECT INTO CLIPRGN
BRA KILL1 ;DISCARD HANDLE1 AND QUIT
ELSE
jmpROM RomXClip ; Jump into ROM
XCLIP2 jmpROM RomXClip2 ; Jump into ROM
ENDIF
GET8 MOVEQ #8,D6 ;BYTECOUNT = 8
BRA GETDONE ;COPY 8 BYTES AND QUIT
GET4 MOVEQ #4,D6 ;BYTECOUNT = 4
BRA GETDONE ;COPY 4 BYTES AND QUIT
GET2 MOVEQ #2,D6 ;BYTECOUNT = 2
BRA GETDONE ;COPY 2 BYTES AND QUIT
GETMODE JSR GETWORD ;GET THE MODE WORD
JSR MAPMODE ;GET EQUIVALENT MODES
MOVE.W D0,(A3) ;SAVE IT
BRA DONE ;QUIT
XFGCOL LEA FGCOLOR(A3),A3
BRA GET4 ;GET FOREGROUND COLOR
XBKCOL LEA BKCOLOR(A3),A3
BRA GET4 ;GET BACKGROUND COLOR
XBKPAT LEA BKPAT(A3),A3
BRA GET8 ;GET BKPAT
XTXFONT LEA TXFONT(A3),A3
IF withFonts THEN
jsr getword ;get the old font ID in d0
MOVE.L PLAYSTATE(A6),A2 ;POINT TO PLAYSTATE RECORD
MOVE.L FontMappingTbl(A2),d1 ;get the fontID association table
beq.s @doit ;just use ID as is
move.l d1,a0
move.l (a0),a0
addq #4,a0 ;point to zero based entry count
move.w (a0)+,d1 ;pick up entry count (could be -1)
bmi.s @doit ;no mapping entries
;entries: oldID,newID word pairs
@1 cmp.w (a0),d0 ;entry for this ID?
addq #4,a0 ;bump to next pair
dbeq d1,@1 ;look until the end or we find it
bne.s @doit ;not found: so don't map
move.w -2(a0),d0 ;found: so use new ID
@doit move.w d0,(a3) ;install the font id in the port
BRA Done ;
ELSE
BRA Get2
ENDIF
XTXFACE LEA TXFACE(A3),A3
MOVEQ #1,D6
BRA GETDONE ;GET TXFACE
XTXMODE LEA TXMODE(A3),A3
BRA GETMODE ;GET TXMODE
XTXSIZE LEA TXSIZE(A3),A3
BRA GET2 ;GET TXSIZE
XSPXTRA LEA SPEXTRA(A3),A3
BRA GET4 ;GET fixed point SPACE EXTRA
XPNSIZE JSR GETLONG ;GET PNSIZE
IF noROM THEN
MOVE.L D0,PNSIZE(A3) ;INSTALL INTO THEPORT
PEA PNSIZE(A3)
MOVE.L PLAYSTATE(A6),A2 ;POINT TO PLAYSTATE RECORD
PEA FROMRECT(A2)
PEA TORECT(A2)
_SCALEPT ;SCALE PNSIZE
BRA DONE
ELSE
jmpROM RomXPnSize ;Jump into ROM
ENDIF
TXRATIO MOVE.L PLAYSTATE(A6),A3 ;POINT TO PLAYSTATE RECORD
JSR GETLONG ;GET TEXT NUMER
MOVE.L D0,NUMER(A3) ;INSTALL INTO PLAYSTATE
JSR GETLONG ;GET TEXT DENOM
MOVE.L D0,DENOM(A3) ;INSTALL INTO PLAYSTATE
;
; Calculate new numer/denom to 32-bits using ConcatRatio.
;
move.w numer+v(a3),d3
move.w toRect+bottom(a3),d4
sub.w toRect+top(a3),d4 ;get height of toRect
swap d3
swap d4
move.w denom+v(a3),d3
move.w fromRect+bottom(a3),d4
sub.w fromRect+top(a3),d4 ;get height of fromRect
bsr ConcatRatio
move.w d3,denom+v(a3)
swap d3
move.w d3,numer+v(a3)
move.w numer+h(a3),d3
move.w toRect+right(a3),d4
sub.w toRect+left(a3),d4 ;get width of toRect
swap d3
swap d4
move.w denom+h(a3),d3
move.w fromRect+right(a3),d4
sub.w fromRect+left(a3),d4 ;get width of fromRect
bsr ConcatRatio
move.w d3,denom+h(a3)
swap d3
move.w d3,numer+h(a3)
bra done
ConcatRatio
;
; takes two 16-bit numer/denom pairs and returns a 16-bit numer/denom
; D3 = numer/denom
; D4 = ToRect/FromRect
;
; Returns answer in D3
;
move.w d3,d0
mulu.w d4,d0 ;has 32-bit denom
swap d3
swap d4
mulu.w d4,d3 ;has 32-bit numer
;
; Need to convert 32-bit ratio (in d3/d0) into 16-bit ratio in d3
;
move.l d0,d1
or.l d3,d1 ;number of bits to mask in high word
bra.s @FifteenBitsYet
;
; shift until we're clear.
;
@loop
lsr.l #1,d3 ;
lsr.l #1,d0
lsr.l #1,d1
@FifteenBitsYet
move.l d1,d4 ;ratio fit in 15 bits?
and.l #$FFFF8000,d4
bne.s @loop ;nope, loop again
swap d3
move.w d0,d3
rts
VERSION JSR GETUBYTE ;GET VERSION NUMBER BYTE
MOVE.L PLAYSTATE(A6),A3 ;POINT TO PLAYSTATE RECORD
MOVE D0,PLAYVERSION(A3) ;INSTALL VERSION INTO PLAYSTATE
BRA DONE ;AND RETURN
XPNMODE LEA PNMODE(A3),A3
BRA GETMODE ;GET PNMODE
XPNPAT LEA PNPAT(A3),A3
BRA GET8 ;GET PNPAT
XFILLPAT LEA FILLPAT(A3),A3
BRA GET8 ;GET FILLPAT
XOVSIZE JSR GETLONG ;GET OVAL SIZE
IF noROM THEN
MOVE.L PLAYSTATE(A6),A2 ;POINT TO PLAYSTATE RECORD
MOVE.L D0,OVALSIZE(A2)
PEA OVALSIZE(A2)
PEA FROMRECT(A2)
PEA TORECT(A2)
_SCALEPT ;SCALE OVAL SIZE
BRA DONE
ELSE
jmpROM OvalEnd ; Jump into ROM
ENDIF
;-----------------------------------------------------
;
; CHANGE ORIGIN: ADD DH AND DV TO FROMRECT, ADJUST PATALIGN,
; THEN RE-MAP THECLIP
;
XORIGIN JSR GETLONG ;GET DH,DV
IF noROM THEN
MOVE.L PLAYSTATE(A6),A2 ;POINT TO PLAYSTATE RECORD
ADD D0,FROMRECT+TOP(A2) ;ADD DV TO FROMRECT
ADD D0,FROMRECT+BOTTOM(A2)
ADD D0,PATALIGN+V(A4) ;AND TO PATALIGN
SWAP D0 ;GET DH IN LO WORD
ADD D0,FROMRECT+LEFT(A2) ;ADD DH TO FROMRECT
ADD D0,FROMRECT+RIGHT(A2)
ADD D0,PATALIGN+H(A4) ;AND TO PATALIGN
;
; RE-COMPUTE MAPPED CLIPRGN FROM UNMAPPED THECLIP
;
MOVE.L THECLIP(A2),-(SP) ;PUSH THECLIP
CLR.L -(SP) ;ROOM FOR FCN RESULT
_NEWRGN ;ALLOCATE A TEMP RGN
MOVE.L (SP),HANDLE1(A6) ;PUT IN HANDLE1
BRA.S XCLIP2 ;COPY, MAP, SECT, AND DISCARD
ELSE
jmpROM XOrigin ; Jump into ROM
ENDIF
;---------------------------------------------------
;
; NEW CQD OPCODES THAT JUST SET PARAMETERS
XRGBFGCOL
LEA FGCOLOR(A3),A3 ;POINT AT SLOT
BRA.S XRGBCOMMON ;COMMON CODE
XRGBBKCOL
LEA BKCOLOR(A3),A3 ;POINT AT SLOT
XRGBCOMMON
JSR GETLONG ;GET R,G
MOVE.L D0,D6 ;SAVE R,G
JSR GETWORD ;GET B
MOVE D0,-(SP) ;PUT B ON STACK
MOVE.L D6,-(SP) ;PUT R,G ON STACK
MOVE.L SP,A1 ;POINT TO RGB
jsr RGB2OLD ;CONVERT TO OLD
MOVE.L D0,(A3) ;SET IT
ADDQ #6,SP ;STRIP RGB
BRA DONE ;AND RETURN
XBkPixPat PEA BKPAT(A3) ;PUSH BKPAT PTR
BRA.S XPIXPAT ;=>USE COMMON CODE
XPnPixPat PEA PNPAT(A3) ;PUSH PNPAT PTR
BRA.S XPIXPAT ;=>USE COMMON CODE
XFillPixPat PEA FILLPAT(A3) ;PUSH FILLPAT PTR
XPixPat JSR GetPicPixPat ;GET THE PATTERN
BRA DONE ;=>AND RETURN
XPnLocHFrac JSR GetWord ;GET FRACTION INTO D0
; MOVE.L PLAYSTATE(A6),A2 ;POINT TO PLAYSTATE RECORD
; MOVE D0,TXHFRAC(A2) ;SAVE HORIZONTAL FRACTION
BRA DONE ;=>AND RETURN
XCHEXTRA
JSR GetWord ;Get Junk word
BRA DONE ;=>AND RETURN
XHiliteMode ;BCLR #hiliteBit,HiliteMode ;ENABLE HILITING
BRA DONE ;AND RETURN
; HILITE COLOR CHANGED, SAVE NEW VALUE INTO GRAFVARS
XHiliteColor JSR GETLONG ;GET R,G
MOVE.L D0,D6 ;SAVE R,G
JSR GETWORD ;GET B
; DO NOTHING, OLD GRAFPORT
@DONE BRA DONE ;AND RETURN
; HILITE COLOR CHANGED TO DEFAULT, COPY HILITE FROM LOW-MEM TO GRAFVARS
XDefHilite BRA DONE ;AND RETURN
; OP COLOR CHANGED, SAVE NEW VALUE INTO GRAFVARS
XOpColor JSR GETLONG ;GET R,G
MOVE.L D0,D6 ;SAVE R,G
JSR GETWORD ;GET B
; OLD GRAFPORT, DO NOTHING
@DONE BRA DONE ;AND RETURN
;---------------------------------------------------
;
; ROUTINES FOR IGNORING DATA
;
; READ THE LENGTH FOLLOWED BY THAT NUMBER OF BYTES
;
CHKSAME TST.B SAMEFLAG(A6) ;USE SAME STRUCTURE?
BEQ.S IGCOUNT ;=>NO, USE COUNT IN D0
MOVE.L D1,D0 ;ELSE GET SIZE FOR SAME
BRA.S IGCOUNT ;=>IGNORE SPECIFIED NUMBER OF BYTES
IGNORELONG JSR GETLONG ;GET A LONG OF LENGTH
BRA.S IGCOUNT ;AND IGNORE THAT MUCH DATA
IGNORESHORT JSR GETWORD ;GET A WORD OF LENGTH
SWAP D0 ;GET HIGH WORD
CLR D0 ;CLEAR IT OUT
SWAP D0 ;SO WE HAVE A LONG LENGTH
IGCOUNT JSR SkipPicData ;Skip D0 bytes
BRA DONE
;---------------------------------------------------
;
; DRAWING OPCODES: $20 - $FE
;
;---------------------------------------------------
;
; TEXT OR LINE OPCODES:
;
; LINE: 20, PNLOC(pt), NEWPT(pt)
; LINEFROM: 21, NEWPT(pt)
; SHORT LINE: 22, PNLOC(pt), DH(byte), DV(byte)
; SHORTLNFROM: 23, DH(byte), DV(byte)
;
; TEXT: 28,29,2A,2B
;
TXLNOP TST.B SAMEFLAG(A6) ;IS THIS A TEXT OPCODE ? <07Nov89 KON>
BNE TEXTOP ;YES, DO IT <07Nov89 KON>
CMP #3,D7 ;IS OPCODE VALID?
BGT.S IGNORESHORT ;=>NO, IGNORE SHORT DATA
TST.B SAMEFLAG(A6) ;IS THIS A TEXT OPCODE ?
BNE.S TEXTOP ;YES, DO IT
MOVE.L PLAYSTATE(A6),A2 ;POINT TO PLAYSTATE RECORD
MOVE.L PENLOC(A2),D0 ;NO, GET PREVIOUS LINE ENDPOINT
ROR #1,D7 ;IS LO NIBBLE ODD ? (BIT 0)
BCS.S LNFROM ;YES, DRAW LINE FROM PREV
JSR GETLONG ;NO, GET NEW STARTPT
LNFROM MOVE.L D0,PNLOC(A3) ;COPY STARTPT INTO THEPORT
MOVE.L D0,NEWPT(A6) ;SAVE FOR SHORT DH,DV BELOW
MOVE.L PLAYSTATE(A6),A2 ;POINT TO PLAYSTATE RECORD
PEA PNLOC(A3)
PEA FROMRECT(A2)
PEA TORECT(A2)
_MAPPT ;MAP STARTPT
ROR #1,D7 ;IS OPCODE BIT 1 SET ?
BCS.S SHORTLN ;YES, USE SHORT DH,DV FORM
JSR GETLONG ;NO, GET NEWPT
MOVE.L D0,NEWPT(A6) ;PUT IN TEMP
BRA.S LNOK ;AND CONTINUE
SHORTLN jsr GETSBYTE ;GET A SIGNED BYTE
ADD.W D0,NEWPT+H(A6) ;ADD TO STARTPT.H
jsr GETSBYTE ;GET A SIGNED BYTE
ADD.W D0,NEWPT+V(A6) ;ADD TO STARTPT.V
IF noROM THEN
LNOK MOVE.L PLAYSTATE(A6),A2 ;POINT TO PLAYSTATE RECORD
MOVE.L NEWPT(A6),PENLOC(A2) ;REMEMBER NEWPT FOR NEXT TIME
; MOVE #$8000,TXHFRAC(A2) ;INVALIDATE TEXT FRACTION
PEA NEWPT(A6) ;PUSH ADDRESS OF NEWPT
PEA FROMRECT(A2)
PEA TORECT(A2)
_MAPPT ;MAP NEWPT
MOVE.L NEWPT(A6),-(SP) ;PUSH NEWPT PARAM FOR LINEPROC
MOVE.L PStdLine,A0 ;get piece of trap table
MOVE.L GRAFPROCS(A3),D0 ;IS GRAFPROCS NIL ?
BEQ.S @1 ;YES, USE STD PROC
MOVE.L D0,A0
MOVE.L LINEPROC(A0),A0 ;NO, GET PROCPTR
@1 BRA CALL0 ;CALL PROC AND QUIT
ELSE
LNOK jmpROM RomLNOK ;Jump into ROM
ENDIF
;---------------------------------------------------
;
; LONG TEXT: 28, txLoc(pt), count(0..255), text
; DH TEXT: 29, dh(0..255), count(0..255), text
; DV TEXT: 2A, dv(0..255), count(0..255), text
; DHDV TEXT: 2B, dh(0..255), dv(0,..255), count(0..255), text
;
; Font ID/Name: 2C, data size (word), fond ID, fond name (pstr)
; Line layout: 2D, data size (word), character extra (fixed), run slop (fixed)
; Glyph state: 2E, data size (word), ouline preferred (byte), preserve glyph (byte),
; fractional widths (byte), scaling disabled (byte)
;
TEXTOP
IF hasGlyphState THEN
cmp #6,d7 ; glyph state opcode?
beq GlyphState ; yes, glyph state information
ENDIF
IF SCRIPT_CHAR_EXTRA THEN
cmp #5,d7 ;line-layout opcode?
beq LineLayout ;yes -> line-layout information.
ENDIF
IF withFonts THEN
CMP #4,D7 ;IS OPCODE VALID?
BGT IGNORESHORT ;=>NO, IGNORE SHORT DATA
BEQ AddFontToTbl ;bind name to new ID
ENDIF
; MOVE.L PLAYSTATE(A6),A2 ;POINT TO PLAYSTATE RECORD
; MOVE NEWHFRAC(A2),TXHFRAC(A2) ;ELSE COPY NEW FRACTIONAL POSITION
; MOVE #$8000,NEWHFRAC(A2) ;AND CLEAR TO 1/2
AND #3,D7 ;IS THIS A LONGTEXT OPCODE ?
BEQ.S LONGTXT ;YES, USE LONG FORMAT
ROR #1,D7 ;DO WE NEED DH ? (BIT 0)
BCC.S DHOK ;NO, CONTINUE
JSR GETUBYTE ;GET DH 0..255
MOVE.L PLAYSTATE(A6),A2 ;POINT TO PLAYSTATE RECORD
ADD D0,TEXTLOC+H(A2) ;BUMP TEXTLOC.H
DHOK ROR #1,D7 ;DO WE NEED DV ? (BIT 1)
BCC.S TEXTOP2 ;NO, CONTINUE
JSR GETUBYTE ;GET DV 0..255
MOVE.L PLAYSTATE(A6),A2 ;POINT TO PLAYSTATE RECORD
ADD D0,TEXTLOC+V(A2) ;BUMP TEXTLOC.V
BRA.S TEXTOP2 ;SHARE CODE
LONGTXT JSR GETLONG ;GET TXLOC, UNMAPPED
MOVE.L PLAYSTATE(A6),A2 ;POINT TO PLAYSTATE RECORD
MOVE.L D0,TEXTLOC(A2) ;SAVE IN TEXTLOC
TEXTOP2 JSR GETUBYTE ;GET TEXT LENGTH 0..255
MOVE D0,D6 ;SAVE LENGTH IN D6
PEA TXDATA(A6) ;PUSH ADDR OF TEXT BUF
MOVE D6,-(SP) ;PUSH BYTECOUNT
JSR GetPicData ;GET THE TEXT
IF noROM THEN
MOVE.L PLAYSTATE(A6),A2 ;POINT TO PLAYSTATE RECORD
MOVE.L TEXTLOC(A2),PNLOC(A3) ;COPY TEXTLOC INTO PNLOC
PEA PNLOC(A3)
PEA FROMRECT(A2)
PEA TORECT(A2)
_MAPPT ;MAP PNLOC.V,PNLOC.H
MOVE D6,-(SP) ;PUSH CHARACTER COUNT
PEA TXDATA(A6) ;PUSH ADDRESS OF TEXT
MOVE.L PLAYSTATE(A6),A2 ;POINT TO PLAYSTATE RECORD
MOVE.L NUMER(A2),-(SP) ;PUSH NUMER
MOVE.L DENOM(A2),-(SP) ;PUSH DENOM
MOVE.L PStdText,A0 ;get piece of trap table
MOVE.L GRAFPROCS(A3),D0 ;IS GRAFPROCS NIL ?
BEQ.S @1 ;YES, USE STD PROC
MOVE.L D0,A0
MOVE.L TEXTPROC(A0),A0 ;NO, GET PROCPTR
@1 BRA CALL0 ;CALL PROC AND QUIT
ELSE
jmpROM RomTextOP ; Jump into ROM
ENDIF
;
; At this point we have found a non-zero fond ID which we have not seen previously
; so we must add it to the FontMappingTbl handle. If the handle needs to be resized we do that
; here as well.
IF withFonts THEN
fontMapChunk equ 20*4
AddFontToTbl
MOVE.L PLAYSTATE(A6),A2 ;POINT TO PLAYSTATE RECORD
MOVE.L FontMappingTbl(A2),d1 ;get the fontID association table
beq ignoreShort ;skip opcode data if no handle
move.l d1,a0
move.l (a0),a1 ;
moveq #0,d0 ;clear out high end
move.w 4(a1),d0 ;get amnt of handle in use
addq.w #1,d0 ;make 1 based
add.w d0,d0
add.w d0,d0 ;4 bytes per entry
addq.w #6,d0 ;hdr size
cmp.l (a1),d0 ;same as size of handle?
blt.s addFontID ;no need to grow list
add.w #fontMapChunk,d0 ;bump handleSize enough for 25 more fonts
move.l d0,(a1) ;save the new size
_SetHandleSize ;grow list
MOVE.L FontMappingTbl(A2),a0 ;get the fontID association table
move.l (a0),a1 ;get fontList handle
tst.w d0 ;did we get it?
beq.s addFontID ;yes, continue
sub.w #fontMapChunk,(a1) ;couldn't grow it.
bra ignoreShort ;skip name stuff
addFontID
move.l a0,a3 ;save fontMappingTbl handle in a3
JSR GetWord ;get word data length
subq #2,d0 ;get length of fond name (incl. length byte)
MOVE D0,D6 ;SAVE LENGTH IN D6
JSR GetWord ;get old fond ID
MOVE D0,D7 ;save fond ID in D7
PEA TXDATA(A6) ;PUSH ADDR OF TEXT BUF
MOVE D6,-(SP) ;PUSH BYTECOUNT
JSR GetPicData ;get the name pstring
PEA TXDATA(A6) ;PUSH ADDR OF font name
PEA NewPt(A6) ;PUSH ADDR OF var font id
_GetFNum ;find the appropriate id for this system
move.w NewPt(a6),d6 ;get new fond ID
beq.s fontDone ;not found, so don't add to table
cmp.w d6,d7 ;does old ID = new ID?
beq.s fontDone ;yes, don't add to table
move.l (a3),a1 ;fontID association table handle in A3
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 #2,d0 ;
lea (a1,d0),a1 ;point to this 0ld,New pair
move.w d7,(a1)+ ;store old ID
move.w d6,(a1) ;store new ID
fontDone
bra Done
ENDIF
;
; Load the line-layout information from the picture and save it into the Script Manager
; globals. We also want to skip any extra data that follows so the opcode can hold more
; in future versions.
;
IF SCRIPT_CHAR_EXTRA THEN
LineLayout
jsr GetWord ; get the data length.
move.w d0,-(sp) ; save this for later.
jsr GetLong ; get the character extra.
move.l grafGlobals(a5),a0 ; load quickDraw globals. <6>
move.l d0,qdChExtra(a0) ; restore character extra amount. <6>
jsr GetLong ; get the run slop.
move.l grafGlobals(a5),a0 ; load quickDraw globals. <6>
move.l d0,qdRunSlop(a0) ; restore run slop amount. <6>
clr.l d0 ; clear a long.
move.w (sp)+,d0 ; load original data length.
sub.l #8,d0 ; extra data included?
bgt IgCount ; yes -> ignore it for now.
bra Done ; finished with this opcode.
ENDIF
;
; Load the glyph state information from the picture and save it into the low memory
; globals. If the width tables are no longer valid then flag that condition by setting
; LastSpExtra to an invalid value. We also want to skip any extra data that follows so
; the opcode can hold more in future versions.
;
IF hasGlyphState THEN
GlyphState
jsr GetWord ; get data length
move.w d0,-(sp) ; save this for later
jsr GetUByte ; get outline preferred flag
move.b d0,-(sp) ; push it on the stack
_SetOutlinePreferred ; set outline preferred state
jsr GetUByte ; get preserve glyph flag
move.b d0,-(sp) ; push it on the stack
_SetPreserveGlyph ; set preserve glyph state
jsr GetUByte ; get fractional widths flag
move.b d0,-(sp) ; push it on the stack
_SetFractEnable ; set fractional widths state
jsr GetUByte ; get scaling disabled flag
move.b d0,-(sp) ; push it on the stack
_SetFScaleDisable ; set scaling disabled state
clr.l d0 ; clear a long
move.w (sp)+,d0 ; load original data length
sub.l #4,d0 ; extra data included?
bgt IgCount ; yes, ignore it for now
bra Done ; finished with this opcode
ENDIF
;---------------------------------------------------
;
; Rect: OP, RECT
;
RECTOP CMP #4,D7 ;IS OPCODE VALID?
BLE.S ROK ;=>YES, CONTINUE
MOVEQ #8,D0 ;IF RECT, SKIP 8 BYTES
MOVEQ #0,D1 ;IF SAME, SKIP 0 BYTES
BRA CHKSAME ;=>CHECK SAMEFLAG AND IGNORE
ROK MOVE.B D7,-(SP) ;PUSH VERB
BSR GETRECT ;GET AND PUSH DSTRECT
IF noROM THEN
MOVE.L PStdRect,A0 ;get piece of trap table
MOVE.L GRAFPROCS(A3),D0 ;IS GRAFPROCS NIL ?
BEQ.S @1 ;YES, USE STD PROC
MOVE.L D0,A0
MOVE.L RECTPROC(A0),A0 ;NO, GET PROCPTR
@1 BRA CALL0 ;CALL PROC AND QUIT
ELSE
jmpROM RomRectOP ; Jump into ROM
ENDIF
;---------------------------------------------------
;
; RRect: OP, RECT, OVALPT
;
RRECTOP CMP #4,D7 ;IS OPCODE VALID?
BLE.S RROK ;=>YES, CONTINUE
MOVEQ #8,D0 ;IF RECT, SKIP 8 BYTES
MOVEQ #0,D1 ;IF SAME, SKIP 0 BYTES
BRA CHKSAME ;=>CHECK SAMEFLAG AND IGNORE
RROK MOVE.B D7,-(SP) ;PUSH VERB
BSR GETRECT ;GET AND PUSH DSTRECT
IF noROM THEN
MOVE.L PLAYSTATE(A6),A2 ;POINT TO PLAYSTATE RECORD
MOVE.L OVALSIZE(A2),-(SP) ;PUSH OVHT,OVWD
MOVE.L PStdRRect,A0 ;get piece of trap table
MOVE.L GRAFPROCS(A3),D0 ;IS GRAFPROCS NIL ?
BEQ.S @1 ;YES, USE STD PROC
MOVE.L D0,A0
MOVE.L RRECTPROC(A0),A0 ;NO, GET PROCPTR
@1 BRA CALL0 ;CALL PROC AND QUIT
ELSE
jmpROM RomRRectOP ; Jump into ROM
ENDIF
;---------------------------------------------------
;
; Oval: OP, RECT
;
OVALOP CMP #4,D7 ;IS OPCODE VALID?
BLE.S OVOK ;=>YES, CONTINUE
MOVEQ #8,D0 ;IF RECT, SKIP 8 BYTES
MOVEQ #0,D1 ;IF SAME, SKIP 0 BYTES
BRA CHKSAME ;=>CHECK SAMEFLAG AND IGNORE
OVOK MOVE.B D7,-(SP) ;PUSH VERB
BSR GETRECT ;GET AND PUSH DSTRECT
IF noROM THEN
MOVE.L PStdOval,A0 ;get piece of trap table
MOVE.L GRAFPROCS(A3),D0 ;IS GRAFPROCS NIL ?
BEQ.S @1 ;YES, USE STD PROC
MOVE.L D0,A0
MOVE.L OVALPROC(A0),A0 ;NO, GET PROCPTR
@1 BRA CALL0 ;CALL PROC AND QUIT
ELSE
jmpROM RomOvalOP ; Jump into ROM
ENDIF
;---------------------------------------------------
;
; Arc: OP, RECT, STARTANGLE, ARCANGLE
;
ARCOP CMP #4,D7 ;IS OPCODE VALID?
BLE.S ARCOK ;=>YES, CONTINUE
MOVEQ #12,D0 ;IF NOT SAME, SKIP 12 BYTES
MOVEQ #4,D1 ;IF SAME, SKIP 5 BYTES
BRA CHKSAME ;=>CHECK SAMEFLAG AND IGNORE
ARCOK MOVE.B D7,-(SP) ;PUSH VERB
BSR GETRECT ;GET AND PUSH DSTRECT
JSR GETWORD ;GET STARTANGLE
MOVE D0,-(SP) ;PUSH STARTANGLE
JSR GETWORD ;GET ARCANGLE
IF noROM THEN
MOVE D0,-(SP) ;PUSH ARCANGLE
MOVE.L PStdArc,A0 ;get piece of trap table
MOVE.L GRAFPROCS(A3),D0 ;IS GRAFPROCS NIL ?
BEQ.S @1 ;YES, USE STD PROC
MOVE.L D0,A0
MOVE.L ARCPROC(A0),A0 ;NO, GET PROCPTR
@1 BRA CALL0 ;CALL PROC AND QUIT
ELSE
jmpROM RomArcOP ; Jump into ROM
ENDIF
;---------------------------------------------------
;
; Poly: OP, POLY
;
; THE SAME POLY OPCODES WERE NEVER PARSED, SO FOR COMPATIBILITY I'LL DO OLD WAY
POLYOP CMP #4,D7 ;IS OPCODE VALID?
BLE.S POLYOK ;=>YES, CONTINUE
TST.B SAMEFLAG(A6) ;IS IT THE SAME POLY?
BNE.S @DONE ;=>YES, NO DATA
BSR GETHNDL ;ELSE READ IN THE POLYGON
@DONE BRA DONE ;AND RETURN
POLYOK BSR GETHNDL ;COPY POLY INTO HANDLE1
IF noROM THEN
MOVE.L HANDLE1(A6),-(SP) ;PUSH POLYHANDLE
MOVE.L PLAYSTATE(A6),A2 ;POINT TO PLAYSTATE RECORD
PEA FROMRECT(A2) ;PUSH FROMRECT
PEA TORECT(A2) ;PUSH TORECT
_MAPPOLY ;MAP POLY INTO DST COORDS
MOVE.B D7,-(SP) ;PUSH VERB
MOVE.L HANDLE1(A6),-(SP) ;PUSH POLYHANDLE
MOVE.L PStdPoly,A0 ;get piece of trap table
MOVE.L GRAFPROCS(A3),D0 ;IS GRAFPROCS NIL ?
BEQ.S @1 ;YES, USE STD PROC
MOVE.L D0,A0
MOVE.L POLYPROC(A0),A0 ;NO, GET PROCPTR
@1 BRA CALL1 ;CALL PROC AND QUIT
ELSE
jmpROM RomPolyOP ; Jump into ROM
ENDIF
;---------------------------------------------------
;
; Rgn: OP, RGN
;
RGNOP CMP #4,D7 ;IS OPCODE VALID?
BLE.S RGNOK ;=>YES, CONTINUE
TST.B SAMEFLAG(A6) ;IS IT THE SAME RGN?
BNE.S @DONE ;=>YES, NO DATA
BSR GETHNDL ;ELSE READ IN THE RGN
@DONE BRA DONE ;AND RETURN
RGNOK BSR GETHNDL ;COPY RGN INTO HANDLE1
IF noROM THEN
MOVE.L HANDLE1(A6),-(SP) ;PUSH RGN
MOVE.L PLAYSTATE(A6),A2 ;POINT TO PLAYSTATE RECORD
PEA FROMRECT(A2) ;PUSH FROMRECT
PEA TORECT(A2) ;PUSH TORECT
_MAPRGN ;MAP RGN INTO DSTRECT COORDS
MOVE.B D7,-(SP) ;PUSH VERB
MOVE.L HANDLE1(A6),-(SP) ;PUSH RGN
MOVE.L PStdRgn,A0 ;get piece of trap table
MOVE.L GRAFPROCS(A3),D0 ;IS GRAFPROCS NIL ?
BEQ.S @1 ;YES, USE STD PROC
MOVE.L D0,A0
MOVE.L RGNPROC(A0),A0 ;NO, GET PROCPTR
@1 BRA CALL1 ;CALL PROC, DISCARD AND QUIT
ELSE
jmpROM RomRgnOP ; Jump into ROM
ENDIF
;--------------------------------------------------------------------------
;
; Quantities in brackets only read if high bit of rowbytes is set.
;
; BitsRect: 90, ROWBYTES, BOUNDS, [REST OF PIXMAP, COLORTABLE],
; SRCRECT, DSTRECT, MODE, BYTECOUNT, BITDATA
;
; BitsRgn: 91, ROWBYTES, BOUNDS, [REST OF PIXMAP, COLORTABLE],
; SRCRECT, DSTRECT, MODE, MASKRGN, BYTECOUNT, BITDATA
;
; PackBitsRect:98, ROWBYTES, BOUNDS, [REST OF PIXMAP, COLORTABLE],
; SRCRECT, DSTRECT, MODE, BYTECOUNT, BITDATA
;
; PackBitsRgn: 99, ROWBYTES, BOUNDS, [REST OF PIXMAP, COLORTABLE],
; SRCRECT, DSTRECT, MODE, MASKRGN, BYTECOUNT, BITDATA
;
; DirectBitsRect:9A, boguslong, ROWBYTES, BOUNDS, [REST OF PIXMAP], CLUT OPTIONAL, <16Jun88 BAL>
; SRCRECT, DSTRECT, MODE, BITDATA
;
; DirectBitsRgn: 9B, boguslong, ROWBYTES, BOUNDS, [REST OF PIXMAP], CLUT OPTIONAL, <16Jun88 BAL>
; SRCRECT, DSTRECT, MODE, MASKRGN, BITDATA
;
; FIRST GET THE BITMAP/PIXMAP FROM THE PICTURE
; Support for 32 bit picts added 8/25/89 by KON
BITSOP CMP #3,D7 ;CHECK OPCODE <16Jun88 BAL>
BGT IGNORESHORT ;=>READ WORD LENGTH + DATA
CMP #1,D7 ;IS IT INDEXED <16Jun88 BAL>
BLE.S @IND ;YES DON'T SKIP BOGUS LONG <16Jun88 BAL>
JSR GETLONG ;GET BOGUS LONG FROM PICTURE <16Jun88 BAL>
@IND JSR GETWORD ;GET ROWBYTES FROM PICTURE
MOVE D0,SRCPIX+ROWBYTES(A6) ;SAVE ROWBYTES
MOVEQ #BITMAPREC-6,D1 ;GET SIZE OF BITMAP
MOVE D0,D6 ;IS IT A BITMAP OR A PIXMAP?
BPL.S BITSOP1 ;=>IT'S A BITMAP
MOVEQ #PMREC-6,D1 ;GET SIZE OF PIXMAP
BITSOP1 PEA SRCPIX+BOUNDS(A6) ;PUSH ADDR OF SRCPIX.BOUNDS
MOVE D1,-(SP) ;PUSH BYTECOUNT
JSR GETPICDATA ;GET BITMAP/PIXMAP
; IF IT'S A PIXMAP, THEN ALLOCATE A COLOR TABLE AND GET IT FROM THE PICTURE
TST D6 ;IS IT A PIXMAP?
BPL.S BITSOP2 ;=>NO, DON'T GET TABLE
move.l srcPix+PMTable(a6),d6 ;does it have a color table? <KON 2NOV90>
clr.l srcPix+PMTable(a6) ;assume no clut <12Jul88 BAL>
BTST #1,D7 ;IS IT DIRECT DATA? <16Jun88 BAL>
bne.s BITSOP2 ;yes, no CLUT <12Jul88 BAL>
;
; On indexed devices we convert the clut to a translation table
;
MOVEQ #CTREC,D0 ;GET SIZE OF COLOR TABLE
_NEWHANDLE ;GET A HANDLE FOR IT
BNE ABORT ;ABORT IF NO ROOM
MOVE.L A0,SRCPIX+PMTABLE(A6) ;SAVE COLOR TABLE HANDLE
MOVE.L A0,-(SP) ;PUSH COLOR TABLE HANDLE
MOVE.L A0,-(SP) ;AND AGAIN
JSR GETPICTABLE ;READ COLOR TABLE INTO HANDLE
tst.l d6 ;NIL color table? <KON 2NOV90>
bne.s Continue ;no, continue
; ??? ERROR HANDLING ???
;
; Color table was NIL on record. If it's a dummy CTable, throw it away. Value field
; of $4B4F in value field of 0th entry signals dummy table.
;
cTabSignature EQU $4B4F ;signature that PixMap has NIL color table (should be defined elsewhere)
move.l (sp),a0
move.l (a0),a2 ;get ptr to color table
cmp.w #cTabSignature,ctTable(a2) ;signature there?
bne.s Continue ;no, then skip
_DisposHandle ;throw away color table and make...
clr.l (sp) ;color table NIL
Continue
MOVE.W SRCPIX+PIXELSIZE(A6),-(SP) ;Push pixel size <27Feb87 DBG>
JSR CTBitMap ;COMPUTE TRANSLATION TABLE
BITSOP2 PEA SRCRECT(A6) ;PUSH ADDR OF SRCRECT
MOVE #16,-(SP) ;PUSH BYTECOUNT = 16
JSR GetPicData ;GET SRCRECT,DSTRECT
MOVE.L PLAYSTATE(A6),A2 ;POINT TO PLAYSTATE RECORD
PEA DSTRECT(A6)
PEA FROMRECT(A2)
PEA TORECT(A2)
_MAPRECT ;MAP DSTRECT
PEA SRCPIX(A6) ;PUSH SRCPIX
PEA SRCRECT(A6) ;PUSH ADDR OF SRCRECT
PEA DSTRECT(A6) ;PUSH ADDR OF DSTRECT
JSR GETWORD ;GET MODE
JSR MAPMODE ;MAP TO EQUIVALENT MODE
MOVE D0,-(SP) ;PUSH MODE
CLR.L -(SP) ;ASSUME MASKRGN = NIL
BTST #0,D7 ;IS MASKRGN USED ? <6Sep89 KON>
BEQ.S NOTRGN ;=> YES, USE NIL RGN
USERGN BSR GETHNDL ;GET MASKRGN INTO HANDLE1
MOVE.L HANDLE1(A6),-(SP) ;PUSH MASKRGN
MOVE.L PLAYSTATE(A6),A2 ;POINT TO PLAYSTATE RECORD
PEA FROMRECT(A2) ;PUSH FROMRECT
PEA TORECT(A2) ;PUSH TORECT
_MAPRGN ;MAP RGN INTO DSTRECT COORDS
MOVE.L HANDLE1(A6),(SP) ;PASS MASKRGN
MOVE.L HANDLE1(A6),HANDLE2(A6) ;AND REMEMBER MASKRGN IN HANDLE2
NOTRGN MOVE SRCPIX+BOUNDS+BOTTOM(A6),D6 ;GET SRCPIX.BOTTOM
SUB SRCPIX+BOUNDS+TOP(A6),D6 ;CALC HEIGHT
MOVE D6,D5 ;COPY HEIGHT
MOVEQ #0,D0 ;CLEAR HIGH WORD
MOVE SRCPIX+ROWBYTES(A6),D0 ;GET BITMAP/PIXMAP ROWBYTES
BPL.S @NOTPIX ;SKIP IF NOT PIXMAP
AND #rbMask,D0 ;CLEAR FLAG BITS
MOVE SRCPIX+PIXELSIZE(A6),D1 ;GET PIXEL SIZE
ADD D1,D0 ;ROUND UP TO NEAREST BYTE
SUBQ #1,D0 ;(MINUS ONE FOR ROUNDING)
DIVU D1,D0 ;GET 1-BIT ROWBYTES
ADDQ #1,D0 ;MAKE SURE ROWBYTES...
BCLR #0,D0 ;...IS EVEN
@NOTPIX
MOVE D0,SRCBITS+ROWBYTES(A6) ;COPY INTO SRCBITS
MULU D0,D5 ;CALC BITMAP SIZE
add #2,d5 ;make sure we have enough room...
;...for an extra long to slop over
MOVE.L D5,D0 ;GET BYTECOUNT
_NewHandle ;ALLOCATE BITS HANDLE
BEQ.S MEMOK ;CONTINUE IF NOT MEMFULL
MOVE.L (SP)+,A0 ;POP MASKRGN (MAYBE NIL)
MemFailure ;Clean up handles and return <Halloween89 KON>
_DisposHandle ;DISCARD IT
TST SRCPIX+ROWBYTES(A6) ;PIXMAP OR BITMAP <30Mar87 DBG>
BPL.S @NOTPIX2 ;BITMAP-NO CTAB <30Mar87 DBG>
MOVE.L SRCPIX+PMTABLE(A6),A0 ;GET COLOR TABLE
_DisposHandle ;DISCARD IT
@NOTPIX2 ; <30Mar87 DBG>
BRA ABORT ;AND ABORT
MEMOK _HLock ;LOCK HANDLE1
MOVE.L A0,HANDLE1(A6) ;REMEMBER IN HANDLE1
move.w 4(sp),d5 ;get copy mode <07Sept89 KON>
PEA SRCPIX(A6) ;PUSH PIXMAP
PEA TXDATA(A6) ;PUSH XLATE TABLE <19Feb87 DBG>
MOVE.L A0,-(SP) ;PUSH HANDLE
MOVE SRCBITS+ROWBYTES(A6),-(SP) ;PUSH TARGET ROWBYTES
move.w d5,-(sp) ;push copy mode so we know whether...
;... or not to dither <07Sept89 KON>
JSR GETPM1Deep ;AND READ IN PIXMAP DATA
tst.w d0 ;d0 = 0 indicates noErr
beq.s PixMapOK ;Error in getPM1Deep? <Halloween89 KON>
MOVE.L HANDLE1(A6),A0 ;Yes, clean-up and exit <Halloween89 KON>
bra.s MemFailure
PixMapOK
and #$FFFF-64,d5 ;clear dither bit since we took care...
move.w d5,4(sp) ;of dithering in GetPM1Deep <07Sept89 KON>
bclr #1, d7 ;clear bit 1 of low nibble of pict opcode
;This bit tells whether or not it's a 32-bit
;pixmap. We don't need this info anymore,
;and the rom checks the low nibble for zero
;to determine if the pixmap is region clipped.
;Since that won't work when we are using bit 1
;to indicate 32-bit pixmap, we have to clear it!
; <07Sept89 KON>
;
; OK, now it's time to build a bit map which looks like the pixmap. Use
; SRCBITS if it's really a PIXMAP (otherwise just use SRCPIX, since it's
; already set up).
;
DOBITS
MOVE.L HANDLE1(A6),A0 ;GET HANDLE1
MOVE.L (A0),SRCPIX+BASEADDR(A6) ;FILL IN BASEADDR
MOVE SRCPIX+ROWBYTES(A6),D0 ;GET ROWBYTES
BPL.S REALDO ;OLD BITMAP=>GO FOR IT!
LEA SRCBITS(A6),A1 ;Point at SRCBITS
MOVE.L A1,(4+2+4+4)(SP) ;Smash source bmap parameter
MOVE.L (A0),(A1)+ ;FILL IN BASEADDR
ADDQ #2,A1 ;Skip ROWBYTES (done above)
LEA SRCPIX+BOUNDS(A6),A0 ;GET BOUNDS
MOVE.L (A0)+,(A1)+ ;COPY FIRST LONG
MOVE.L (A0),(A1) ;...AND SECOND
REALDO
move.l PStdBits_SE_Portable, a0 ;
MOVE.L GRAFPROCS(A3),D0 ;IS GRAFPROCS NIL ?
BEQ.S BITSOK ;YES, USE STD PROC
MOVE.L D0,A0
MOVE.L BITSPROC(A0),A0 ;NO, GET PROCPTR
BITSOK JSR (A0) ;CALL BITSPROC
MOVE.L HANDLE1(A6),A0 ;GET HANDLE1
_HUnlock ;UNLOCK THE DATABITS
TST SRCPIX+ROWBYTES(A6) ;IS IT A PIXMAP?
BPL.S DOKILL ;=>NO, DON'T DISPOSE COLOR TABLE
MOVE.L SRCPIX+PMTABLE(A6),d0 ;ELSE GET COLOR TABLE HANDLE
beq.s DoKill ;direct data, no clut
move.l d0,a0
_DISPOSHANDLE ;AND DISPOSE OF IT
IF noROM THEN
DOKILL TST #0,D7 ;IS MASKRGN USED ?
BEQ KILL1 ;NO, DISCARD ONLY DATABITS
BRA KILL2 ;DISCARD MASKRGN & DATABITS
ELSE
DOKILL jmpROM RomBits ;Jump into ROM
ENDIF
;--------------------------------------------------------------------------
;
; CTBitMap - Build bit map of black/white color mappings from a CTAB
; PROCEDURE CTBitMap(theTable: CTabHandle; pixSize: INTEGER); <27Feb87 DBG>
;
CTBitMap
;
; Build a vector of bytes which indicates, for each of the colors in
; the pixmap's color table, whether that color should map to black or white.
;
MOVE.L 6(SP),D0 ;Table handle <KON 2NOV90>
move.l d0,a0 ; <KON 2NOV90>
bne.s @ConvertTable ;convert table if non-zero
;
; Here we have a relative PixMap: First invalidate all entries in destination.
;
LEA TXDATA(A6),A1 ;Place to stick table <KON 2NOV90>
MOVE.W #256-1,D0 ;Count of bytes <KON 2NOV90>
MOVE.B #$80,D2 ;Marker <KON 2NOV90>
@CLRLOOP ;
MOVE.B D2,(A1)+ ;Clear entry to $80 <KON 2NOV90>
DBRA D0,@CLRLOOP ;
;
; Make half of valid range (number of pixels) 0 and the other half one.
;
MOVE 4(SP),D0 ; Get pixel size <KON 2NOV90>
MOVEQ #1,D1 ; Handy 1 bit <KON 2NOV90>
ASL D0,D1 ; Compute #pixel values <KON 2NOV90>
ADDQ #1,d1 ; Assumes cnt+1 at @join <KON 15NOV90>
LEA TXDATA(A6),A1 ; Start of table address <KON 2NOV90>
bra.s @join
@ConvertTable
MOVE.L (A0),A0 ;Table pointer
ADDQ #CTSize,A0 ;POINT AT SIZE
MOVE (A0)+,D4 ;GET SIZE(-1); POINT AT TABLE
;
; First, clear the entire mapping table to $80 so we can recognize pixel
; values which didn't get set by the color table.
;
LEA TXDATA(A6),A1 ;Place to stick table <19Feb87 DBG>
MOVE.W #256-1,D0 ;Count of bytes <27Feb87 DBG>
MOVE.B #$80,D2 ; Marker <27Feb87 DBG>
@myCLRLOOP ; <27Feb87 DBG>
MOVE.B D2,(A1)+ ;Clear entry to $80 <27Feb87 DBG>
DBRA D0,@myCLRLOOP ; <27Feb87 DBG>
;
; Now, set the corresponding bit value for every entry in the color table.
;
LEA TXDATA(A6),A1 ;Get address again <27Feb87 DBG>
@CTLOOP
MOVE (A0)+,D2 ;Get pixel value <19Feb87 DBG>
jsr RGB2Pixel ;GET BIT VALUE IN D0.B
MOVE.B D0,0(A1,D2.W) ;WRITE OUT THIS BYTE <19Feb87 DBG>
DBRA D4,@CTLOOP ;LOOP THROUGH COLOR TABLE
;
; Next, we must set a value for every pixel which isn't in the color table.
; Of all the undefined entries, the first half map to zero and the second
; to one (this approximates the ramp used by Color QuickDraw).
;
MOVE 4(SP),D0 ; Get pixel size <27Feb87 DBG>
MOVEQ #1,D1 ; Handy 1 bit <27Feb87 DBG>
ASL D0,D1 ; Compute #pixel values <27Feb87 DBG>
MOVE.L 6(SP),A0 ;Table handle <27Feb87 DBG>
MOVE.L (A0),A0 ;Table pointer <27Feb87 DBG>
ADDQ #CTSize,A0 ;POINT AT SIZE <27Feb87 DBG>
MOVE (A0),D4 ;GET SIZE(-1) <27Feb87 DBG>
SUB D4,D1 ;Calculate number of...<27Feb87 DBG>
@Join
SUBQ #1,D1 ;...undefined entries <27Feb87 DBG>
MOVE D1,D4 ;Make copy <27Feb87 DBG>
ASR #1,D4 ;Divide by 2 <27Feb87 DBG>
SUB D4,D1 ;Other half <27Feb87 DBG>
;
; Set all the pixels we want to set to zero, to zero.
;
@ZeroLoop ; <27Feb87 DBG>
TST D4 ;Any left? <27Feb87 DBG>
BEQ.S @OneLoop ;Nope, do the ones <27Feb87 DBG>
@ZeroLoop2 ; <27Feb87 DBG>
TST.B (A1)+ ;Valid pixel? <27Feb87 DBG>
BPL.S @ZeroLoop2 ;Yup, do next <27Feb87 DBG>
CLR.B -1(A1) ;No, set to zero <27Feb87 DBG>
SUBQ #1,D4 ;One less to set <27Feb87 DBG>
BRA.S @ZeroLoop ;Look for next guy <27Feb87 DBG>
;
; Now set all the one pixels to one.
;
@OneLoop ;<27Feb87 DBG>
MOVEQ #1,D0 ; Get a one <27Feb87 DBG>
@OneLoop1 ; <27Feb87 DBG>
TST D1 ;Any left? <27Feb87 DBG>
BEQ.S @UndefDone ;Nope, do the ones <27Feb87 DBG>
@OneLoop2 ; <27Feb87 DBG>
TST.B (A1)+ ;Valid pixel? <27Feb87 DBG>
BPL.S @OneLoop2 ;Yup, do next <27Feb87 DBG>
MOVE.B D0,-1(A1) ;No, set to one <27Feb87 DBG>
SUBQ #1,D1 ;One less to set <27Feb87 DBG>
BRA.S @OneLoop1 ;Look for next guy <27Feb87 DBG>
@UndefDone ; <27Feb87 DBG>
;
; Return to the caller.
;
MOVE.L (SP)+,A0 ;GET RETURN ADDRESS <27Feb87 DBG>
ADD #6,SP ;POP ARGUMENTS <27Feb87 DBG>
JMP (A0) ;RETURN <27Feb87 DBG>
;--------------------------------------------------------------------------
;
; CommentOp: OP, KIND, { SIZE, DATA }
;
COMMOP TST.B SAMEFLAG(A6) ;IS SAMEFLAG SET?
BNE IGNORESHORT ;=>YES, READ WORD LENGTH + DATA
CMP #1,D7 ;$A0 OR $A1
BGT IGNORESHORT ;=>READ WORD LENGTH + DATA
if 0 then
BEQ CALLUSERBOTTLEPROC
endif
JSR GETWORD ;GET COMMENT KIND IN D0
MOVE D0,-(SP) ;PUSH FOR COMMENTPROC
TST.B D7 ;IS THIS SHORT FORM ?
BNE.S LONGCOM ;NO, GET MORE
IF noROM THEN
CLR -(SP) ;YES, PUSH DATASIZE = 0
CLR.L -(SP) ;PUSH DATAHANDLE = NIL
MOVE.L PStdComment,A0 ;get piece of trap table
MOVE.L GRAFPROCS(A3),D0 ;IS GRAFPROCS NIL ?
BEQ.S @1 ;YES, USE STD PROC
MOVE.L D0,A0
MOVE.L COMMENTPROC(A0),A0 ;NO, GET PROCPTR
@1 BRA CALL0 ;CALL PROC AND QUIT
ELSE
jmpROM RomCommentOP ; Jump into ROM
ENDIF
LONGCOM JSR GETWORD ;GET DATASIZE
MOVE D0,-(SP) ;PUSH DATASIZE
CLR D4 ;INIT BYTE INDEX FOR GETHND2
BSR.S GETHND2 ;GET DATA INTO HANDLE1
IF noROM THEN
MOVE.L HANDLE1(A6),-(SP) ;PUSH DATA HANDLE
MOVE.L PStdComment,A0 ;get piece of trap table
MOVE.L GRAFPROCS(A3),D0 ;IS GRAFPROCS NIL ?
BEQ.S @1 ;YES, USE STD PROC
MOVE.L D0,A0
MOVE.L COMMENTPROC(A0),A0 ;NO, GET PROCPTR
@1 BRA CALL1 ;CALL PROC, DISCARD AND QUIT
ELSE
jmpROM RomLongCom ; Jump into ROM
ENDIF
if 0 then
CALLUSERBOTTLEPROC
JSR GETWORD ;GET DATA LENGTH
MOVE.L D0,D2 ;SAVE IT FOR A SEC
_NEWHANDLE
BNE.S NOMEMORY ;READ BYTES AND ABORT
_HLOCK ;IT BETTER NOT MOVE!
MOVE.L A0,HANDLE1(A6) ;SAVE HANDLE
MOVE.L (A0),-(SP) ;POINTER TO MEMORY
MOVE D2,-(SP) ;PUSH BYTECOUNT
JSR GETPICDATA ;GET SRCRECT,DSTRECT
MOVE.L HANDLE1(A6),A0 ;GET HANDLE
LEA GETPICDATA,A1
MOVE.L PLAYSTATE(A6),A2
MOVE.L (A0),A0 ;GET ADDRESS TO CALL
BRA CALL1 ;CALL IT
NOMEMORY
MOVE.L D2,D0 ;GET COUNT TO IGNORE
BRA IGCOUNT ;IGNORE BYTES IN D0
endif
;-----------------------------------------------------
;
; GET SOME BYTES AND QUIT
;
GETDONE MOVE.L A3,-(SP) ;PUSH DATAPTR
MOVE D6,-(SP) ;PUSH BYTECOUNT
JSR GetPicData ;GET DATA FROM THEPIC
BRA DONE
GETRECT
;----------------------------------------------------------
;
; LOCAL PROCEDURE TO SET UP AND PUSH DSTRECT AS FOLLOWS:
; IF NOT SAMEFLAG, THEN GET NEXT 8 BYTES INTO THERECT.
; THEN MAP THERECT INTO DSTRECT, AND PUSH ADDR OF DSTRECT.
; CLOBBERS A0,D0
;
TST.B SAMEFLAG(A6) ;SAME RECT ?
BNE.S SAME1 ;YES, CONTINUE
MOVE.L PLAYSTATE(A6),A2 ;POINT TO PLAYSTATE RECORD
PEA THERECT(A2) ;PUSH ADDR OF THERECT
MOVE #8,-(SP) ;PUSH BYTECOUNT
JSR GetPicData ;GET DATA FROM THEPIC
IF noROM THEN
SAME1 MOVE.L PLAYSTATE(A6),A2 ;POINT TO PLAYSTATE RECORD
MOVE.L THERECT(A2),DSTRECT(A6) ;COPY THERECT INTO DSTRECT
MOVE.L THERECT+4(A2),DSTRECT+4(A6)
PEA DSTRECT(A6)
PEA FROMRECT(A2)
PEA TORECT(A2)
_MAPRECT ;MAP DSTRECT
MOVE.L (SP)+,A0 ;POP RETURN ADDR
PEA DSTRECT(A6) ;PUSH ADDR OF MAPPED DSTRECT
JMP (A0) ;RETURN
ELSE
SAME1 jmpROM RomGetRect
ENDIF
GETHNDL
;--------------------------------------------------------
;
; LOCAL ROUTINE TO ALLOCATE, AND COPY HANDLE1
;
; CLOBBERS D0-D2,A0-A1,D4,D5
;
; TRICKY ENTRY AT GETHND2 WITH COUNT IN D0, D4 = 0
;
MOVEQ #2,D4 ;INIT BYTE OFFSET FOR LATER
JSR GETWORD ;GET BYTECOUNT
GETHND2
EXT.L D0 ;MAKE COUNT LONG
MOVE.L D0,D5 ;PUT BYTECOUNT INTO D5
_NewHandle ;ALLOCATE HANDLE
BNE.S ABORT ;ABORT IF MEMFULL
MOVE.L A0,HANDLE1(A6) ;SAVE IN HANDLE1
_HLock ;LOCK HANDLE1
MOVE.L (A0),A0 ;DE-REFERENCE IT
MOVE D5,(A0) ;INSTALL SIZE WORD
SUB D4,D5 ;ADJUST COUNT
PEA 0(A0,D4) ;PUSH DATAPTR
MOVE D5,-(SP) ;PUSH BYTECOUNT
JSR GetPicData ;GET DATA FROM THEPIC
MOVE.L HANDLE1(A6),A0 ;GET HANDLE 1
_HUnLock ;UNLOCK IT
RTS ;AND RETURN
GetPicOp
;------------------------------------------------------
;
; LOCAL PROCEDURE TO GET NEXT OPCODE FROM PICTURE INTO D0
;
MOVE.L PLAYSTATE(A6),A2 ;POINT TO PLAYSTATE RECORD
CMP #PICTVERSION,PLAYVERSION(A2) ;IS IT AN OLD PICTURE?
BEQ.S OLDPIC ;=>YES, GET ONE-BYTE OPCODE
MOVE.L GRAFGLOBALS(A5),A0 ;POINT TO QUICKDRAW GLOBALS
MOVE.L PLAYINDEX(A0),D0 ;GET CURRENT POSITION
BTST #0,D0 ;IS IT ODD?
BEQ.S NOTODD ;=>NO, JUST FETCH OPCODE
JSR GETUBYTE ;ELSE SKIP PAD BYTE
NOTODD JSR GETWORD ;GET OPCODE WORD IN D0
RTS ;AND RETURN
OLDPIC JSR GETUBYTE ;GET OPCODE BYTE IN D0
RTS ;AND RETURN
;-----------------------------------------------------------------
;
; CALL BOTTLENECK PROC, DISPOSE OF ONE OR TWO HANDLES, AND QUIT
;
CALL0 JSR (A0) ;CALL PROC PTR
BRA.S DONE ;AND QUIT
CALL1 JSR (A0) ;CALL PROC PTR
BRA.S KILL1 ;KILL HANDLE1 AND QUIT
; KILL ONE OR TWO HANDLE TEMPS
KILL2 MOVE.L HANDLE2(A6),A0 ;GET HANDLE2
_DisposHandle ;DISCARD IT
IF noROM THEN
KILL1 MOVE.L HANDLE1(A6),A0 ;GET HANDLE1
_DisposHandle ;DISCARD IT
BRA.S DONE
ABORT MOVE.L SAVEDSP(A6),SP ;RESTORE STACK
CLR.B RESULT(A6) ;RETURN FALSE
DONE MOVEM.L (SP)+,D3-D7/A2-A4 ;RESTORE REGISTERS
UNLINK PARAMSIZE,'PICITEM1' ;destroys condition codes
ELSE
KILL1 jmpROM RomKill1 ; Jump into ROM
ABORT jmpROM RomAbort ; Jump into ROM
DONE jmpROM RomDone ; Jump into ROM
ENDIF
ENDPROC
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