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sys7.1-doc-wip/QuickDraw/Patches/DrawPicturePlusSE.a
Horst Beepmanh 33cd9271f4 SuperMarioProj.1994-02-09
2019-07-27 22:37:48 +08:00

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;
; File: DrawPicturePlusSE.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):
;
; <20> 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.
; <19> 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.
; <18> 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.
; <17> 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.
; <16> 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.
; <15> 3/20/91 KON gbm, WRKSHT#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.
; <14> 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.
; <13> 2/15/91 KON stb BRC #82511: PixMaps with nil color tables are not drawn
; properly.
; <12> 1/16/91 KON Move ReduceD3D4 to correct place. [CEL]
; <11> 1/14/91 KON Reduce Numer and Denom by GCD when drawing a picture. These
; overflow on higher DPI devices. [CEL]
; <10> 12/13/90 KON Check for color table signature before throwing it away. [smc]
; <9> 12/3/90 KON Handle cases where pixmaps saved to PICTs don't have a color
; table. [smc]
; <8> 9/12/90 KON Get pictures in sync with previous MacII and ci picture changes.
; <7> 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.
; <6> 8/2/90 gbm continue the warning witch hunt
; <5> 5/27/90 JT Strange operand in DrawPicture patch. Should be D0 (the digit)
; but is actually DO (the letter).
; <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.
;
; 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.
;
PlusSEDrawPicture PROC EXPORT
IMPORT PicItemPlusSE
IMPORT 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 PicItemPlusSE.
;
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
PLAYREC EQU USERCLIP+4 ;End of OLD PLAYREC
; Allocate the extension below the rest of DrawPicture's stack frame.
IF withFonts THEN
PLAYVERSION EQU THERECT-PORTREC-2 ;PICTURE VERSION
SAVECURSTATE EQU PLAYVERSION-2 ;Save state of pic handle <FJL PMAB270>
TXHFRAC EQU SAVECURSTATE-2 ;FRACTIONAL TEXT POSITION
NEWHFRAC EQU TXHFRAC-2 ;UPDATED FRACTION RECIEVED
TEMPPIXPAT EQU NEWHFRAC-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 PLAYVERSION+2-PSreserve2 ;TOTAL SIZE
ELSE
NEWHFRAC EQU THERECT-PORTREC-2 ;UPDATED FRACTION RECEIVED
TXHFRAC EQU NEWHFRAC-2 ;FRACTIONAL TEXT POSITION
PLAYVERSION EQU TXHFRAC-2 ;PICTURE VERSION
SAVECURSTATE EQU PLAYVERSION-2 ;Save state of pic handle <FJL PMAB270>
PLAYREC2 EQU NEWHFRAC+2-SAVECURSTATE ;Length of PLAYREC extension <FJL PMAB270>
ENDIF ; withFonts
;
; 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
PLAYSTATE2 EQU SAVEPORT-PLAYREC2
saveQdRunSlop equ PLAYSTATE2-4 ;Fixed <7>
saveQdChExtra equ saveQdRunSlop-4 ;Fixed <7>
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. <7>
move.l qdChExtra(a0),saveQdChExtra(a6) ; save character extra amount. <7>
move.l qdRunSlop(a0),saveQdRunSlop(a6) ; save run slop amount. <7>
clr.l qdChExtra(a0) ; clear character extra amount. <7>
clr.l qdRunSlop(a0) ; clear run slop amount. <7>
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 PicItemPlusSE(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 PicItemPlusSE ;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. <7>
move.l saveQdChExtra(a6),qdChExtra(a0) ; restore character extra amount. <7>
move.l saveQdRunSlop(a6),qdRunSlop(a0) ; restore run slop amount. <7>
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
PicItemPlusSE 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.
;
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
PLAYREC EQU USERCLIP+4 ;End of OLD PLAYREC
; Allocate the extension below the rest of DrawPicture's stack frame.
IF withFonts THEN
PLAYVERSION EQU THERECT-PORTREC-2 ;PICTURE VERSION
SAVECURSTATE EQU PLAYVERSION-2 ;Save state of pic handle <FJL PMAB270>
TXHFRAC EQU SAVECURSTATE-2 ;FRACTIONAL TEXT POSITION
NEWHFRAC EQU TXHFRAC-2 ;UPDATED FRACTION RECIEVED
TEMPPIXPAT EQU NEWHFRAC-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 PLAYVERSION+2-PSreserve2 ;TOTAL SIZE
ELSE
NEWHFRAC EQU THERECT-PORTREC-2 ;UPDATED FRACTION RECEIVED
TXHFRAC EQU NEWHFRAC-2 ;FRACTIONAL TEXT POSITION
PLAYVERSION EQU TXHFRAC-2 ;PICTURE VERSION
SAVECURSTATE EQU PLAYVERSION-2 ;Save state of pic handle <FJL PMAB270>
PLAYREC2 EQU NEWHFRAC+2-SAVECURSTATE ;Length of PLAYREC extension <FJL PMAB270>
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 ;equal -> 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. <7>
move.l d0,qdChExtra(a0) ; restore character extra amount. <7>
jsr GetLong ; get the run slop.
move.l grafGlobals(a5),a0 ; load quickDraw globals. <7>
move.l d0,qdRunSlop(a0) ; restore run slop amount. <7>
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 ;get piece of trap table (SE or Portable)
ENTRY GetPStdBits
GetPStdBits equ * - 2 ;fix the word in the above instruction on Plus
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
FixPStdBits INSTALLPROC (Plus)
IMPORT GetPStdBits
lea GetPStdBits,a0 ;point at above code
move.w #PStdBits_Plus,(a0) ;jam in the correct vector for the Mac. Plus
rts
ENDPROC
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