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4325cdcc78
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.
168 lines
4.0 KiB
Plaintext
168 lines
4.0 KiB
Plaintext
;
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; File: ColorPicker.a
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;
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; Contains: Assembly language goodies to go with the Color Picker
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;;
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; Copyright: © 1987-1990 by Apple Computer, Inc., all rights reserved.
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;
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; Change History (most recent first):
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;
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; <2> 8/28/90 dvb NEEDED FOR SIXPACK: Fix to work w/o 32bit qd
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; <¥1.1> 7/24/89 CSD FOR 6.0.4. Forcing submission to upgrade to the 32-Bit QuickDraw
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; Color Picker.
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;
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; To Do:
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;
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;EASE$$$ READ ONLY COPY of file ÒColorPicker.aÓ
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;¥1.1 CSD 07/24/1989 FOR 6.0.4. Forcing submission to upgrade to the 32-Bit
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; QuickDraw Color Picker.
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;----------------------------------------------------------------
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;
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; Assembly glue for Color Picker package
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;
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; Copyright © 1987, 1988 Apple Computer, Inc. All rights reserved.
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;
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;-----------------------------------------------------------------
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BLANKS ON
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INCLUDE 'Traps.a'
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Picker MAIN EXPORT
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IMPORT glueFix2SmallFract
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IMPORT glueSmallFract2Fix
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IMPORT glueCMY2RGB
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IMPORT glueRGB2CMY
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IMPORT glueHSL2RGB
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IMPORT glueRGB2HSL
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IMPORT glueHSV2RGB
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IMPORT glueRGB2HSV
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IMPORT glueGetColor
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bra.s Dispatch
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dc.w 0 ;start of package header (need doc)
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dc.l 'PACK'
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dc.w 12 ;package number
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dc.w 1 ;version number
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Dispatch
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lea Picker, a0 ;get our address
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_RecoverHandle ;get our master pointer
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_HLock ;lock us down
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move.l (sp)+,a0 ;pop return address
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move.w (sp)+,d0 ;get routine selector
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move.l a0,-(sp) ;restore return address
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asl.w #1,d0 ;make routine selector word index
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move.w JTab-2(d0.w),d0 ;get routine offset
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jmp JTab(d0.w) ;go to selected routine
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JTab
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dc.w glueFix2SmallFract-JTab
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dc.w glueSmallFract2Fix-JTab
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dc.w glueCMY2RGB-JTab
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dc.w glueRGB2CMY-JTab
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dc.w glueHSL2RGB-JTab
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dc.w glueRGB2HSL-JTab
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dc.w glueHSV2RGB-JTab
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dc.w glueRGB2HSV-JTab
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dc.w glueGetColor-JTab
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;
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;-------------------------------------------------------------------------------------
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; Next: Routines for unpacking the tightly-wadded 32-bit wedges.
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; FUNCTION: NibbleUnpack(src,dst: Pointer):LONGINT;
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;
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; Unpack data pointed to by src, and deposit it starting at dest.
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;
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; Data are unpacked as follows:
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; A control byte is followed by two data bytes. The high nibble of the control byte
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; specifies the repeat count for the first data byte, and the low nibble of the
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; control byte specifies the repeat count for the second data byte.
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; A control byte of ZERO indicates end of data.
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;
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; Unpack the data. Return number of source bytes unpacked.
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;
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NibbleUnpack PROC EXPORT
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UnPackVars RECORD {A6Link},DECREMENT
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result DS.B 4 ;result: Long
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src DS.B 4 ;WindowPtr
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dst DS.B 4 ;EventRecord
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return DS.B 4 ;return address
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A6Link DS.B 4 ;old contents of A6
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linkSize DS.B 0 ;linky number
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ENDR
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WITH UnPackVars
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LINK A6, #linkSize
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MOVEM.L D3-D6,-(SP) ;save all regs
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MOVE.L src(A6),A0 ;A0->source
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MOVE.L dst(A6),A1 ;A1->destination
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@com CLR.L D0 ;trash the upper bits
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CLR.L D1
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MOVE.B (A0)+,D0 ;D0 = two counts
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BEQ.S @alldone ; Zero? => end of sequence
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MOVE.B D0,D1
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LSR #4,D1
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MOVE.B (A0)+,D2
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BRA.S @end1
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@sing1 MOVE.B D2,(A1)+ ;Move a byte...
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@end1 DBRA D1,@sing1
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MOVE.B D0,D1
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AND #$F,D1
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MOVE.B (A0)+,D2
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BRA.S @end2
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@sing2 MOVE.B D2,(A1)+ ;Move a byte...
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@end2 DBRA D1,@sing2
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BRA.S @com
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@alldone
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SUBA.L src(A6),A0 ;A0 = number of bytes read
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MOVE.L A0,result(A6) ;return that value
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MOVEM.L (SP)+,D3-D6 ;restore them regs
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UNLK A6
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MOVE.L (SP),A0 ;A0->return address
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ADD.L #result-return,SP ;Remove calling stack
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JMP (A0) ;Leave
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PROC
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EXPORT SetGray25Pat,SetGray50Pat,SetGray75Pat,SetGray50BPat
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thatGray25Pat
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DC.B $55,$00,$55,$00,$55,$00,$55,$00
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thatGray50Pat
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DC.B $55,$AA,$55,$AA,$55,$AA,$55,$AA
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thatGray75Pat ;
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DC.B $FF,$AA,$FF,$AA,$FF,$AA,$FF,$AA
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thatGray50BPat ; stripes, to checker over
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DC.B $FF,$00,$FF,$00,$FF,$00,$FF,$00
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SetGray25Pat
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PEA thatGray25Pat
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share _PenPat
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RTS
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SetGray50Pat
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PEA thatGray50Pat
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BRA.S share
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SetGray75Pat
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PEA thatGray75Pat
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BRA.S share
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SetGray50BPat
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PEA thatGray50BPat
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BRA.S share
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END
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