154 lines
5.6 KiB
Plaintext
154 lines
5.6 KiB
Plaintext
;__________________________________________________________________________________________________
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;
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; File: CrsrDevEqu.a
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;
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; Contains: equates for new mouse/trackball/etc. acceleration code
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;
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; Written by: Gary Rensberger
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;
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; Copyright: © 1992 by Apple Computer, Inc. All rights reserved.
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;
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; This file is used in these builds: ROM
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;
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; Change History (most recent first):
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;
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; <SM3> 12/01/92 HY Defined 2 fields in CsrsDevGlobals, CrsrDevFlags and MoreCrsrDevFlags.
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; Defined bit 0 of crsrDevFlags to SkipDraw. This flag indicates to skip
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; drawing the cursor on the first VBL, and to only perform calculations.
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; This fixes a bug which caused the cursor to flicker when it was at
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; the top of the screen. (see CrsrDev.a)
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; <SM2> 8/26/92 kc Roll in Horror changes.
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; <H3> 7/13/92 djw <GED>Added field in CrsrDataRec which indicates how often (in
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; VBL ticks) the cursor should be blitted. Added two related
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; vectors in CrsrDevGlobals.
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; <H2> 7/13/92 djw <GED> Added equates for two new cursor vectors.
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; <SM1> 5/2/92 kc Roll in Horror. Comments follow:
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; <H2> 2/17/92 SWC Changed CrsrDevRec.resolution to a long since it's a fixed point
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; number, and slightly rearranged the record so everything stays
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; long word aligned.
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; <H1> 2/12/92 GMR first checked in
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; --------- button operations ---------
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btnNoOp EQU 0 ; No action for this button
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btnSingleClick EQU 1 ; Normal mouse button
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btnDoubleClick EQU 2 ; Click-release-click when pressed
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btnClickLock EQU 3 ; Click on press, release on next press
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btnCharStroke EQU 4 ; A keystroke, data=(modifiers, char code)
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btnAppleScript EQU 5 ; An AppleScript
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btnCustom EQU 6 ; Custom behavior, data=proc pointer
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; --------- Device Classes ---------
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classAbsolute EQU 0 ; a flat-response device
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classMouse EQU 1 ; mechanical or optical mouse
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classTrackball EQU 2 ; trackball
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classScratchPad EQU 3 ; (midas)
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classJoystick EQU 4 ; (homeRow)
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classRelTablet EQU 5 ; relative tablet
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CrsrDevSegment RECORD 0
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devUnits ds.l 1 ; highest device speed for this segment
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slope ds.l 1 ; multiplier for device speed (crsr speed/dev speed)
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intercept ds.l 1 ; offset to produce cursor speed
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CrsrDevSegSize EQU *
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ENDR
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CrsrDevRec RECORD 0
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nextCrsrDev ds.l 1 ; ptr to next record in linked list
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whichCursor ds.l 1 ; ptr to data for target cursor
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refCon ds.l 1 ; Application defined
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unused ds.l 1 ; reserved for future
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devID ds.l 1 ; device identifier (from ADB reg 1)
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resolution ds.l 1 ; units/inch (orig. from ADB reg 1)
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devClass ds.b 1 ; device class (from ADB reg 1)
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cntButtons ds.b 1 ; # of buttons (from ADB reg 1)
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ds.b 1 ; align
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buttons ds.b 1 ; state of all buttons
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buttonOp ds.b 8 ; action performed per button
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buttonTicks ds.l 8 ; ticks when button last went up (for debounce)
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buttonData ds.l 8 ; data for the button operation
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doubleClickTime ds.l 1 ; device-specific double click speed
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acceleration ds.l 1 ; current acceleration
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accelPoints ds.l 1 ; Private: Ptr to array of (dev_delta, slope, intercept)
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deltaX ds.l 1 ; Private: accumulated deltas
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deltaY ds.l 1 ; Private: "
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errorX ds.l 1 ; Private: accumulated errors
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errorY ds.l 1 ; Private: "
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denom ds.w 1 ; Private: fraction of the errors to use next time
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spread ds.w 1 ; Private: Number of samples to spread errors over
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newData ds.b 1 ; Private: set when deltas are new
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ds.b 1 ; align
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ds.b 4 ; new
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CrsrDevSize EQU *
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ENDR
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CrsrDataRec RECORD 0
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nextCrsrData ds.l 1 ; next in global list
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displayInfo ds.l 1 ; unused (FUTURE: display info for this cursor)
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whereX ds.l 1 ; horizontal position
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whereY ds.l 1 ; vertical position
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where ds.w 2 ; the pixel position
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isAbs ds.b 1 ; has been stuffed with absolute coords
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buttonCount ds.b 1 ; number of buttons currently pressed
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screenRes ds.l 1 ; Pixels per inch on the current display
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screenDelay ds.w 1 ; minimum number of VBLs between subsequent crsr redraws <H3>
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reserved ds.w 1 ; future expansion <H3>
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scrnDelayPtr ds.l 1 ; ptr to table of screen delay values <H3>
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alsoreserved ds.l 1 ; future expansion <H3>
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scrnDelayTbl ds.l 8 ; default tbl for <refnum><screen delay> pairs <H3>
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CrsrDataSize EQU *
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ENDR
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CrsrDevGlobals RECORD 0
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firstCrsrDev ds.l 1 ; head of the cursor device list
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firstCrsrData ds.l 1 ; points to THE ONLY cursor data record
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SetCrsrDelayVector ds.l 1 ; points to routine that updates screen crsr delay <H3>
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DrawCrsrVBLVector ds.l 1 ; vectors final drawing stage of CrsrDevHandleVBL <H3>
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CrsrDevFlags ds.b 1 ; Flags <SM3>
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MoreCrsrDevFlags ds.b 1 ; <SM3>
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reserved ds.l 1 ; future expansion <H3>
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CrsrGlobSize EQU *
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ENDR
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;
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; CrsrDevFlags bit definitions
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;
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SkipDraw equ 0 ; Skip Draw flag forces the CrsrDevHandleVBL routine <SM3>
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; to skip drawing the cursor. <SM3>
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DrawCrsrVector EQU $1FB8 ; jump entry for DrawCursor <H2>
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EraseCrsrVector EQU $1FBC ; jump entry for EraseCursor <H2>
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;---------------------
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; Misc. equates
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;---------------------
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;mouseAddr EQU 3 ; default address of mice
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extDevHand EQU 04 ; handler 04 = extended type mouse device
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;v EQU 0 ; point offsets
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;h EQU 2
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frameRate EQU 67 ; 67 frames/sec
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