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boot3/QuickDraw/Polygons.a

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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. The Tools directory, containing mostly junk, is also excluded.
2017-09-17 09:09:04 +00:00
;
; File: Polygons.a
;
; Copyright: <09> 1981-1992 by Apple Computer, Inc., all rights reserved.
;
; Change History (most recent first):
;
; <SM3> 6/11/92 stb <sm 6/9/92>stb Synch with QDciPatchROM.a; added comments to
; StdPoly, StdDraw.
; <SM2> 5/21/92 kc Change the name of QuickDraws wrapper for NewHandle to
; NewHandleWrapper to avoid name conflict with the glue.
; <<3C>1.4> 5/29/89 BAL Blasting in 32-Bit QuickDraw version 1.0 Final
; <<3C>1.3> 4/12/89 BAL Blasting in 32-Bit QuickDraw 1.0B1
; <EHB> 5/26/87 Put proper opcode to color picture
; <EHB> 9/5/86 Added FillCPoly
; <EHB> 8/16/86 In FillPoly, call SetFillPat for color pattern support.
;
;
BLANKS ON
STRING ASIS
;--------------------------------------------------------------
;
;
; **** *** * * * *** *** * * ***
; * * * * * * * * * * * * * * *
; * * * * * * * * * ** * *
; **** * * * * * ** * * * * * ***
; * * * * * * * * * * ** *
; * * * * * * * * * * * * *
; * *** ***** * *** *** * * ***
;
;
useArt EQU 1 ;use Art Cabral's vector based poly code
StdPoly PROC EXPORT
IMPORT PutPicVerb,DPutPicByte,PutPicRgn
IMPORT PushVerb,FrPoly,RSect,DrawPoly
;---------------------------------------------------------------
;
; PROCEDURE StdPoly(verb: GrafVerb; poly: PolyHandle);
;
; A6 OFFSETS OF PARAMS AND LOCALS AFTER LINK:
;
; has fixes from QDciPatchROM.a <sm 6/9/92>stb
PARAMSIZE EQU 6
VERB EQU PARAMSIZE+8-2 ;GRAFVERB
POLY EQU VERB-4 ;LONG, PolyHandle
MINRECT EQU -8 ;RECT
VARSIZE EQU MINRECT ;TOTAL BYTES OF LOCALS
LINK A6,#VARSIZE ;ALLOCATE STACK FRAME
MOVEM.L D5-D7/A2-A4,-(SP) ;SAVE REGS
MOVEQ #0,D7 ;CLEAR LO WORD OF REG SO OPCODE WILL BE OK TO 16BITS <C952/08Nov87> DAF
MOVE.B VERB(A6),D7 ;GET VERB
_CheckPic ;SET UP A4,A3 AND CHECK PICSAVE
BLE.S NOTPIC ;BRANCH IF NOT PICSAVE
MOVE.B D7,-(SP)
JSR PutPicVerb ;PUT ADDIONAL PARAMS TO THEPIC
MOVEQ #$70,D0 ;PUT POLYNOUN IN HI NIBBLE
ADD D7,D0 ;PUT VERB IN LO NIBBLE
JSR DPutPicOp ;PUT OPCODE TO THEPIC <26May87 EHB>
MOVE.L POLY(A6),-(SP) ;PUSH POLYHANDLE
JSR PutPicRgn ;TREAT SAME AS A REGION
; CALL STANDARD LOOP TO DRAW TO ALL DEVICES
NOTPIC PEA StdDraw ;PUSH ADDRESS OF DRAW ROUTINE
PEA GetRect ;PUSH ADDRESS OF RECT ROUTINE
_StdDevLoop ;DRAW TO ALL DEVICES
GOHOME MOVEM.L (SP)+,D5-D7/A2-A4 ;RESTORE REGS
UNLINK PARAMSIZE,'STDPOLY '
;---------------------------------------------------------------
;
; PROCEDURE GetRect(VAR theRect: rect);
;
; RETURN THE OBJECT'S RECTANGLE
;
GetRect MOVE.L (SP)+,D0 ;GET RETURN ADDRESS
MOVE.L (SP)+,A1 ;GET DST RECT
MOVE.L D0,-(SP) ;REPLACE RETURN ADDRESS
MOVE.L POLY(A6),A0 ;GET POLYGON
MOVE.L (A0),A0 ;POINT AT IT
LEA POLYBBOX(A0),A0 ;POINT TO BOUNDING BOX
MOVE.L (A0)+,(A1)+ ;SET TOPLEFT
MOVE.L (A0),(A1) ;SET BOTRIGHT
; GROW THE RECT BECAUSE A POLY DRAWS OUTSIDE OF ITS BOUNDING BOX
PEA -4(A1) ;POINT TO THERECT
MOVE.L PNSIZE(A3),D0 ;GET PENSIZE.H
NEG D0 ;NEGATE WIDTH
MOVE D0,-(SP) ;PUSH DH
SWAP D0 ;GET PENSIZE.V
NEG D0 ;NEGATE HEIGHT
MOVE D0,-(SP) ;PUSH DV
_INSETRECT
RTS ;AND RETURN
;---------------------------------------------------------------
;
; PROCEDURE StdDraw;
;
; DRAW THE OBJECT
;
; from QDciPatchROM.a <sm 6/9/92>stb
StdDraw MOVE.L POLY(A6),A2 ;GET POLYHANDLE
TST.B D7 ;IS VERB FRAME ?
BNE.S NOTFR ;NO, CONTINUE
MOVE.L A2,-(SP) ;PUSH POLYHANDLE
JSR FrPoly ;FrPoly(poly);
BRA.S DONE ;AND QUIT
NOTFR MOVE.L (A2),A0 ;DE-REFERANCE POLYHANDLE
PEA POLYBBOX(A0) ;PUSH POLYBBOX
MOVE.L VISRGN(A3),A0 ;GET VISRGN HANDLE
MOVE.L (A0),A0 ;DE-REFERENCE HANDLE
PEA RGNBBOX(A0) ;PUSH VISRGN BBOX
MOVE.L CLIPRGN(A3),A0 ;GET CLIPRGN HANDLE
MOVE.L (A0),A0 ;DE-REFERENCE HANDLE
PEA RGNBBOX(A0) ;PUSH CLIPRGN BBOX
MOVE #3,-(SP) ;PUSH NRECTS = 3
PEA MINRECT(A6) ;PUT RESULT IN MINRECT
_RSECT ;CALC INTERSECTION
BEQ.S DONE ;QUIT IF NO INTERSECT
MOVE.L A2,-(SP) ;PUSH POLYHANDLE
_PushVerb ;PUSH MODE AND PATTERN
JSR DrawPoly ;DrawPoly(poly,mode,pat);
DONE RTS
FramePoly PROC EXPORT
EXPORT CallPoly,PaintPoly,ErasePoly,InvertPoly,FillPoly,FillCPoly
IMPORT SETFILLPAT
;-----------------------------------------------------
;
; PROCEDURE FramePoly(* poly: PolyHandle *);
;
MOVEQ #FRAME,D0 ;VERB = FRAME
BRA.S CallPoly ;SHARE COMMON CODE
;-----------------------------------------------------
;
; PROCEDURE PaintPoly(* poly: PolyHandle *);
;
PaintPoly
MOVEQ #PAINT,D0 ;VERB = PAINT
BRA.S CallPoly ;SHARE COMMON CODE
;--------------------------------------------------------
;
; PROCEDURE ErasePoly(* poly: PolyHandle *);
;
ErasePoly
MOVEQ #ERASE,D0 ;VERB = ERASE
BRA.S CallPoly ;SHARE COMMON CODE
;--------------------------------------------------------
;
; PROCEDURE InvertPoly(* poly: PolyHandle *);
;
InvertPoly
MOVEQ #INVERT,D0 ;VERB = INVERT
BRA.S CallPoly ;SHARE COMMON CODE
;--------------------------------------------------------
;
; PROCEDURE FillPoly(* poly: PolyHandle; pat: Pattern *);
;
FillPoly
MOVEQ #0,D0 ;FLAG = FillPoly
BRA.S SHARE ; => USE COMMON CODE
;----------------------------------------------------------
;
; PROCEDURE FillCPoly(poly: PolyHandle; PPH: PixPatHandle);
;
FillCPoly
MOVEQ #1,D0 ;FLAG = FillCPoly
SHARE MOVE.L (SP)+,A0 ;POP RETURN ADDR
MOVE.L (SP)+,A1 ;POP ADDR OF PATTERN
MOVE.L A0,-(SP) ;PUT RETURN ADDR BACK
MOVE.L A1,-(SP) ;PUSH ADDR OF PATTERN
_SETFILLPAT ;FILLPAT := PAT
MOVEQ #FILL,D0 ;VERB = FILL
; BRA.S CallPoly ;SHARE COMMON CODE
;---------------------------------------------------------------
;
; PROCEDURE CallPoly(poly: PolyHandle);
;
; code shared by FramePoly, PaintPoly, ErasePoly, InvertPoly, and FillPoly.
; enter with verb in D0.
;
CallPoly
MOVE.L (SP)+,A0 ;POP RETURN ADDR
MOVE.L (SP)+,A1 ;POP POLY
MOVE.B D0,-(SP) ;PUSH VERB
MOVE.L A1,-(SP) ;PUSH POLY
MOVE.L A0,-(SP) ;RESTORE RETURN ADDR
MOVE.L GRAFGLOBALS(A5),A0 ;POINT TO LISAGRAF GLOBALS
MOVE.L THEPORT(A0),A0 ;GET CURRENT GRAFPORT
MOVE.L GRAFPROCS(A0),D0 ;IS GRAFPROCS NIL ?
MOVE.L JStdPoly,A0 ;get piece of trap table
BEQ.S USESTD ;YES, USE STD PROC
MOVE.L D0,A0
MOVE.L POLYPROC(A0),A0 ;NO, GET PROC PTR
USESTD JMP (A0) ;GO TO IT
OpenPoly FUNC EXPORT
IMPORT HidePen,NewHandleWrapper
;---------------------------------------------------------------
;
; FUNCTION OpenPoly: PolyHandle;
;
STARTSIZE EQU 138 ;ENOUGH FOR 32 POINTS
_HidePen ;TURN OFF DRAWING
CLR.L -(SP) ;MAKE ROOM FOR FCN RESULT
MOVE #STARTSIZE,-(SP) ;PUSH BYTE COUNT = STARTSIZE
JSR NewHandleWrapper ;ALLOCATE NEWHANDLE
MOVE.L (SP)+,A1 ;POP RESULTING HANDLE
MOVE.L A1,4(SP) ;PUT HANDLE IN FCN RESULT
MOVE.L GRAFGLOBALS(A5),A0 ;POINT TO QUICKDRAW GLOBALS
MOVE.L A1,THEPOLY(A0) ;REMEMBER HANDLE IN THEPOLY
MOVE #STARTSIZE,POLYMAX(A0) ;POLYMAX := STARTSIZE;
MOVE.L THEPORT(A0),A0 ;GET CURRENT GRAFPORT
MOVEQ #1,D0
MOVE.L D0,POLYSAVE(A0) ;POLYSAVE := TRUE
MOVE.L (A1),A1 ;DE-REFERENCE HANDLE
MOVE #10,(A1)+ ;INSTALL POLYSIZE = 10
CLR.L (A1)+ ;ZERO OUT POLYBBOX
CLR.L (A1)+
RTS ;RETURN
ClosePoly PROC EXPORT
IMPORT SetHSize,ShowPen
;---------------------------------------------------------------
;
; PROCEDURE ClosePoly;
;
; A6 OFFSETS OF PARAMS AND LOCALS AFTER LINK:
;
MOVEM.L D3-D7/A4,-(SP) ;SAVE REGS
MOVE.L GRAFGLOBALS(A5),A4 ;POINT TO QUICKDRAW GLOBALS
MOVE.L THEPORT(A4),A0 ;GET CURRENT GRAFPORT
CLR.L POLYSAVE(A0) ;POLYSAVE := FALSE
MOVE.L THEPOLY(A4),A4 ;GET THEPOLY HANDLE
MOVE.L (A4),A0 ;DE-REFERENCE THEPOLY
MOVE (A0)+,D7 ;GET POLYSIZE
CLR.L (A0)+ ;ZERO OUT POLYBBOX
CLR.L (A0)+
MOVE D7,D6
SUB #10,D6
LSR #2,D6 ;NPOINTS = (SIZE-10) DIV 4
BEQ.S EMPTY ;QUIT IF NO POINTS
;-----------------------------------------------------
;
; SCAN FOR BOUNDING BOX OF POLYGON
;
MOVE (A0)+,D1 ;TOP := FIRST POINT VERT
MOVE D1,D2 ;BOTTOM := FIRST POINT VERT
MOVE (A0)+,D3 ;LEFT := FIRST POINT HORIZ
MOVE D3,D4 ;RIGHT := FIRST POINT HORIZ
SUB #1,D6 ;DECREMENT POINT COUNT
BRA.S RIGHTOK ;GO TO LOOP START
NEXTPT MOVE (A0)+,D0 ;GET VERT COORD
CMP D1,D0 ;IS VERT < BBOX TOP ?
BGE.S TOPOK ;NO, CONTINUE
MOVE D0,D1 ;YES, UPDATE BBOX TOP
TOPOK CMP D2,D0 ;IS VERT > BBOX BOTTOM ?
BLE.S BOTOK ;NO, CONTINUE
MOVE D0,D2 ;YES, UPDATE BBOX BOTTOM
BOTOK MOVE (A0)+,D0 ;GET HORIZ COORD
CMP D3,D0 ;IS HORIZ < BBOX LEFT ?
BGE.S LEFTOK ;NO, CONTINUE
MOVE D0,D3 ;YES, UPDATE BBOX LEFT
LEFTOK CMP D4,D0 ;IS HORIZ > BBOX RIGHT ?
BLE.S RIGHTOK ;NO, CONTINUE
MOVE D0,D4 ;YES, UPDATE BBOX RIGHT
RIGHTOK DBRA D6,NEXTPT ;LOOP ALL POINTS
MOVE.L (A4),A0 ;DE-REFERENCE THEPOLY
LEA POLYBBOX(A0),A0 ;POINT TO POLYBBOX
MOVE D1,(A0)+ ;INSTALL BBOX TOP
MOVE D3,(A0)+ ;INSTALL BBOX LEFT
MOVE D2,(A0)+ ;INSTALL BBOX BOTTOM
MOVE D4,(A0)+ ;INSTALL BBOX RIGHT
;--------------------------------------------------------
;
; TRIM THEPOLY TO FINAL SIZE, SHOW PEN AND QUIT
;
EMPTY MOVE.L A4,-(SP) ;PUSH THEPOLY HANDLE
MOVE D7,-(SP) ;PUSH BYTECOUNT = POLYSIZE
JSR SetHSize ;TRIM TO MINIMUM SIZE
_SHOWPEN ;RESTORE PNVIS
MOVEM.L (SP)+,D3-D7/A4 ;RESTORE REGS
RTS ;AND RETURN
KillPoly PROC EXPORT
;---------------------------------------------------
;
; PROCEDURE KillPoly(poly: PolyHandle);
;
MOVE.L (SP)+,A1 ;pop return addr
MOVE.L (SP)+,A0 ;pop handle
_DisposHandle ;discard it
JMP (A1) ;and return
OffsetPoly PROC EXPORT
;---------------------------------------------------
;
; PROCEDURE OffsetPoly(poly: PolyHandle; dh,dv: INTEGER);
;
MOVE.L (SP)+,A0 ;POP RETURN ADDRESS
MOVE (SP)+,D0 ;POP DV
MOVE (SP)+,D1 ;POP DH
MOVE.L (SP)+,A1 ;POP POLYHANDLE
MOVE.L (A1),A1 ;DE-REFERENCE POLYHANDLE
MOVE (A1)+,D2 ;GET POLYSIZE
SUB #2,D2 ;CALC TOTAL # POINTS, INCL BBOX
LSR #2,D2 ; # POINTS = (SIZE-2) DIV 4
SUB #1,D2 ;INIT DBRA COUNT
NEXTPT ADD D0,(A1)+ ;OFFSET VERT COORD
ADD D1,(A1)+ ;OFFSET HORIZ COORD
DBRA D2,NEXTPT ;LOOP FOR ALL POINTS
JMP (A0) ;AND RETURN
MapPoly PROC EXPORT
IMPORT MapPt,MapRect
;-------------------------------------------------------------
;
; PROCEDURE MapPoly(poly: PolyHandle; fromRect,toRect: Rect);
;
; A6 OFFSETS OF PARAMETERS AND LOCALS AFTER LINK:
;
PARAMSIZE EQU 12
POLY EQU PARAMSIZE+8-4 ;LONG, RGNHANDLE
FROMRECT EQU POLY-4 ;LONG, ADDR OF RECT
TORECT EQU FROMRECT-4 ;LONG, ADDR OF RECT
LINK A6,#0 ;ALLOCATE STACK FRAME
MOVEM.L D7/A2-A4,-(SP) ;SAVE REGS
;
; QUIT FAST IF FROMRECT = TORECT
;
MOVE.L FROMRECT(A6),A2 ;POINT TO FROMRECT
MOVE.L TORECT(A6),A3 ;POINT TO TORECT
MOVE.L (A2),D0
CMP.L (A3),D0 ;IS TOPLEFT SAME ?
BNE.S NOTSAME ;NO, CONTINUE
MOVE.L 4(A2),D0
CMP.L 4(A3),D0 ;YES, IS BOTRIGHT SAME TOO ?
BEQ.S DONE ;IF SO, JUST QUIT
NOTSAME MOVE.L POLY(A6),A4 ;GET POLYHANDLE
MOVE.L (A4),A4 ;DE-REFERENCE POLYHANDLE
PEA POLYBBOX(A4) ;PUSH ADDR OF BBOX
MOVE.L A2,-(SP) ;PUSH FROMRECT
MOVE.L A3,-(SP) ;PUSH TORECT
_MAPRECT ;MAP POLYBBOX
MOVEQ #10,D0
MOVE POLYSIZE(A4),D7 ;GET POLYSIZE
SUB D0,D7
LSR #2,D7 ;NPOINTS = (POLYSIZE-10) DIV 4
ADD D0,A4 ;POINT TO FIRST POINT
BRA.S START ;GO TO LOOP START
NEXTPT MOVE.L A4,-(SP) ;PUSH ADDR OF POINT
MOVE.L A2,-(SP) ;PUSH FROMRECT
MOVE.L A3,-(SP) ;PUSH TORECT
_MAPPT ;MAP THIS POINT
ADD #4,A4 ;BUMP TO NEXT POINT
START DBRA D7,NEXTPT ;LOOP ALL POINTS IN POLY
DONE MOVEM.L (SP)+,D7/A2-A4 ;RESTORE REGS
UNLINK PARAMSIZE,'MAPPOLY '
FrPoly PROC EXPORT
IMPORT MoveTo
;--------------------------------------------------------
;
; PROCEDURE FrPoly(poly: PolyHandle);
;
; A6 OFFSETS OF PARAMS AND LOCALS AFTER LINK:
;
PARAMSIZE EQU 4
POLY EQU PARAMSIZE+8-4 ;LONG, POLYHANDLE
LINK A6,#0 ;ALLOCATE STACK FRAME
MOVEM.L D6-D7/A4,-(SP) ;SAVE REGS
MOVE.L POLY(A6),A4 ;GET POLYHANDLE
MOVE.L (A4),A0 ;DE-REFERENCE IT
MOVE (A0),D7 ;GET POLYSIZE
SUB #10,D7
LSR #2,D7 ;NPOINTS = (SIZE-10) DIV 4
BEQ.S DONE ;QUIT IF EMPTY POLYGON
MOVE.L 10(A0),-(SP) ;PUSH FIRST POINT
_MOVETO ;MOVETO(FIRST POINT)
MOVE.L #14,D6 ;INIT BYTE OFFSET
SUB #1,D7 ;DECREMENT COUNT
BRA.S START ;GOT TO LOOP START
NEXTPT MOVE.B HiliteMode,-(SP) ;preserve hilite state for each side
MOVE.L (A4),A0 ;DE-REFERENCE POLYHANDLE
MOVE.L 0(A0,D6),-(SP) ;PUSH NEXT POINT
ADD #4,D6 ;BUMP BYTE OFFSET
_DoLine ;DOLINE(PT)
MOVE.B (SP)+,HiliteMode ;restore hilite state for each side
START DBRA D7,NEXTPT ;LOOP FOR ALL POINTS
DONE MOVEM.L (SP)+,D6-D7/A4 ;RESTORE REGS
BSET #hiliteBit,HiliteMode ;reset hilite flag
UNLINK PARAMSIZE,'FRPOLY '
IF useArt THEN
INCLUDE 'QuickPolys.a'
ELSE
DrawPoly PROC EXPORT
IMPORT OpenRgn,FrPoly,NewRgn,CloseRgn,DrawRgn
;--------------------------------------------------------
;
; PROCEDURE DrawPoly(poly: PolyHandle; mode: INTEGER; VAR pat: Pattern);
;
; A6 OFFSETS OF PARAMS AND LOCALS AFTER LINK:
;
PARAMSIZE EQU 10
POLY EQU PARAMSIZE+8-4 ;LONG, POLYHANDLE
MODE EQU POLY-2 ;WORD
PAT EQU MODE-4 ;LONG, ADDR OF PATTERN
LINK A6,#0 ;NO LOCAL VARS
MOVE.L A4,-(SP) ;SAVE REG
MOVE.L GRAFGLOBALS(A5),A0 ;POINT TO QUICKDRAW GLOBALS
MOVE.L THEPORT(A0),A0 ;GET CURRENT PORT
TST PNVIS(A0) ;IS PNVIS NEG ?
BMI.S DONE ;YES, QUIT
MOVE.B HiliteMode,-(SP) ;save hilite state across call to FrPoly
_OPENRGN ;OpenRgn
MOVE.L POLY(A6),-(SP)
JSR FRPOLY ;FrPoly(poly);
MOVE.L POLY(A6),A0
MOVE.L (A0),A0
MOVE.L 10(A0),-(SP) ;PUSH FIRST POINT
_DoLine ;MAKE SURE IT CLOSES
CLR.L -(SP) ;ROOM FOR FCN RESULT
_NEWRGN ;ALLOCATE TEMPRGN
MOVE.L (SP),A4 ;PUT TEMPRGN IN A4
_CLOSERGN ;CLOSERGN(TEMPRGN)
MOVE.B (SP)+,HiliteMode ;restore hilite state for DrawRgn
MOVE.L A4,-(SP)
MOVE MODE(A6),-(SP)
MOVE.L PAT(A6),-(SP)
JSR DRAWRGN ;DrawRgn(tempRgn,mode,pat);
MOVE.L A4,A0 ;get tempRgn
_DisposHandle ;DISCARD IT
DONE MOVEM.L (SP)+,A4 ;RESTORE REG
UNLINK PARAMSIZE,'DRAWPOLY'
ENDIF
ENDPROC
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