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2deb042863
NetBoot/ServerDA.a
Elliot Nunn 2deb042863 Oops! Remove some debug ifdefs
2021-04-04 08:05:09 +08:00

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***************************************************************************
****
**** NETBOOT SERVER DESK ACCESSORY
****
***************************************************************************
; My global variables in a dCtlStorage handle
; The first $9C bytes are occupied by a window rec (of which grafPort is part)
rs.b $9C ; grafPort and windowRecord
gPB rs.l 1 ; keep PB&DCE together; both are pointers
gDCE rs.l 1
gGrafPortSave rs.l 1
gBackendRef rs.w 1
gBackendQHdr rs.l 1
gOpenBtn rs.l 1
gCloseBtn rs.l 1
gDiskBtn rs.l 1
gList rs.l 1
gSize rs.b 0
; "File entry" list (stored as a handle in dCtlStorage)
feQLink equ 0 ; long
feQType equ 4 ; word
feRefNum equ 6 ; word
feConnCnt equ 8 ; byte
fePermssn equ 9 ; byte
feListRow equ 10 ; word rowNum within List
feFileName equ 12 ; variable length pascal string
; Initial window size
kWinW equ 219
kWinH equ 72
**************************** DESK ACCESSORY ENTRY **************************
DAEntry ; See Device Manager IM:2
dc.b $04 ; dCtlEnable only
dc.b 0 ; Lower byte is unused
dc.w 5*60 ; 5 sec periodic update
dc.w $42 ; mouseDown updateEvt
dc.w 0 ; No menu for this accessory
dc.w DAOpen-DAEntry ; Open routine
dc.w 0 ; Prime - unused
dc.w DACtl-DAEntry ; Control
dc.w 0 ; Status - unused
dc.w DAClose-DAEntry ; Close
DATitle
dc.b 15, 'NetBoot Server', 0 ; DA Name (& Window Title)
dc.b 0, 0, $20, 1 ; traditional version
************************ DESK ACCESSORY GLUE ROUTINES ***********************
* These create a nice environment to do our actual work, described further down.
* Some notes:
* The DeviceMgr does not require us to save any registers (no async routines).
* But it is a bit ambiguous about return values, so zero both IOResult and D0.
* Move A0/A1 to A2/A3 straight away so we can make calls that trash registers.
* "Open" returns its result via IOResult, all others via D0. Only Open can fail.
* "Control" returns via IODone (A1=DCE/D0=result), all others via RTS.
* We choose to save and set thePort for all routines. (We can't set it for Open
* because it doesn't exist, but we save thePort at the end as our dCtlWindow.)
* Limitation: no help with showing a menu
* I decided to keep our globals in a nonrelocatable block. Mac OS requires
* our window record to be in a fixed location, so we already pay the
* penalty of heap fragmentation. We might as well just make the window
* block a little bit bigger, and use the same register (A4) as the base of
* grafPort, windowRec AND globals.
DASetThePortAndA4 ; Leave A0 alone for the sake of DACtl
move.l $1E(A1),A4
movem.l A0/A1,gPB(A4)
move.l (A5),A1
move.l (A1),gGrafPortSave(A4)
move.l A4,(A1)
rts
DARestoreThePort
move.l (A5),A0
move.l gGrafPortSave(A4),(A0)
rts
DAOpen
clr.w $10(A0) ; TODO: don't always return noErr
move.l A0,-(SP) ; Allocate our global block...
move.l A1,-(SP)
move.l #gSize,D0
dc.w $A31E ; _NewPtrClear
move.l (SP)+,A1
move.l A0,$1E(A1) ; set dCtlWindow
move.l (SP)+,A0
bsr.s DASetThePortAndA4
bsr.s Init
bsr.s DARestoreThePort
rts
DAClose
bsr.s DASetThePortAndA4
bsr Teardown
bsr.s DARestoreThePort
move.l A4,A0 ; Deallocate our global block...
dc.w $A01F ; _DisposPtr
clr.w D0
rts
DACtl
movem.l $18(A0),D7/A0 ; D7=csCode A0=csParam(ie event ptr)
bsr.s DASetThePortAndA4 ; preserves A0 as a special favour
; Dispatch the control call...
cmp.w #64,D7 ; csCode == accEvent
bne.s .done
; tests for accRun, accCursor etc would go here
pea .done
cmp.w #1,(A0) ; check "what" field of event
beq MouseDownEvent
cmp.w #6,(A0)
beq UpdateEvent
rts
.done
bsr.s DARestoreThePort
move.l gDCE(A4),A1 ; return noErr
clr.w D0
move.l $8FC,A0 ; IODone
jmp (A0)
************************************************************************
* End of the header/glue. All below routines use registers as follows:
* D0: return value
* D1-D7: free to trash
* A0: pointer to event (if applicable)
* A1-A3: free to trash
* A4: our global pointer
* A5: app global pointer
* A6: probably shouldn't trash
************************************************************************
Init
; Install the backend driver (anywhere in the unit table)
subq #4,SP
move.l #'DRVR',-(SP)
bsr GetFirstOwnedResID
move.w D0,-(SP)
dc.w $A9A0 ; _GetResource (will be locked in sysheap)
move.l (SP)+,A0
move.l (A0),A0
bsr InstallAndOpenDriver
move.w D0,gBackendRef(A4)
sub #$32,SP
move.w D0,$18(SP) ; talk to backend driver
move.w #128,$1A(SP) ; get pointer to its linked list of disk images
move.l SP,A0
dc.w $A004 ; _Control
move.l $1C(SP),gBackendQHdr(A4)
add #$32,SP
; Create our window
subq #4,SP ; FUNCTION = WindowRef
move.l A4,-(SP) ; address of storage
pea theWindow ; boundsRect
pea DATitle ; title
clr.w -(SP) ; visible flag FALSE
move.w #16,-(SP) ; window proc = rDocProc, 16px rounding
move.l #-1,-(SP) ; window in front
move.b #1,-(SP) ; goAway box TRUE
move.l #-1,-(SP) ; refCon = -1 (special)
dc.w $A913 ; __NewWindow
addq #4,SP
move.l gDCE(A4),A0
move.l $18(A0),$6C(A4) ; set windowKind to DCE.dCtlRefNum
; Add buttons to the window
subq #4,SP
move.l A4,-(SP) ; theWindow
pea OpenBtnRect ; boundsRect
pea OpenBtnTitle ; title
st -(SP) ; visible
clr.l -(SP) ; value/min
clr.l -(SP) ; max/procID=pushbtn
move.l #$80000000+OpenBtn-DAEntry,-(SP) ; refCon (high flag means pin right)
dc.w $A954 ; _NewControl
move.l (SP)+,gOpenBtn(A4)
subq #4,SP
move.l A4,-(SP) ; theWindow
pea CloseBtnRect ; boundsRect
pea CloseBtnTitle ; title
st -(SP) ; visible
clr.l -(SP) ; value/min
clr.l -(SP) ; max/procID=pushbtn
move.l #$80000000+CloseBtn-DAEntry,-(SP) ; refCon
dc.w $A954 ; _NewControl
move.l (SP)+,gCloseBtn(A4)
subq #4,SP
move.l A4,-(SP) ; theWindow
pea DiskBtnRect ; boundsRect
pea DiskBtnTitle ; title
st -(SP) ; visible
clr.l -(SP) ; value/min
clr.l -(SP) ; max/procID=pushbtn
move.l #DiskBtn-DAEntry,-(SP) ; refCon
dc.w $A954 ; _NewControl
move.l (SP)+,gDiskBtn(A4)
subq #4,SP
pea theList ; rView
pea listBounds ; dataBounds
clr.l -(SP) ; cSize
clr.w -(SP) ; theProc
move.l A4,-(SP) ; theWindow
st -(SP) ; drawIt
clr.w -(SP) ; hasGrow
clr.w -(SP) ; scrollHoriz
st -(SP) ; scrollVert
move.w #$44,-(SP)
dc.w $A9E7 ; _LNew
move.l (SP)+,gList(A4)
clr.w D0
rts
Teardown
rts ; TODO write this!
************************** EVENT HANDLING ROUTINE **************************
UpdateEvent ; event pointer passed in A0, but not very interesting
move.l A4,-(SP) ; push grafPort
dc.w $A922 ; _BeginUpdate
move.l $18(A4),-(SP) ; grafPort.visRgn
move.l gList(A4),-(SP) ; lHandle
move.w #$64,-(SP)
dc.w $A9E7 ; _LUpdate
move.l A4,-(SP)
dc.w $A969 ; _DrawControls
bsr DrawFakeGrowBox
move.l A4,-(SP)
dc.w $A923 ; _EndUpdate
rts
MouseDownEvent ; event pointer passed in A0, very important
move.l A0,A2 ; A2 = event ptr
move.l 10(A2),-(SP) ; event.where
move.l SP,-(SP)
dc.w $A871 ; _GlobalToLocal
move.l (SP)+,D4 ; D4 = point in local coords
; Hit-test grow box
move.l D4,D0
bsr UseFakeGrowBox ; takes pt in D0, leaves old/new sizes in D0/D1
bne.s .didNotResize
bsr MoveWindowControls
bra.s .return
.didNotResize
; Hit-test List Manager
subq #2,SP
move.l D4,-(SP)
move.w #1,2(SP) ; fake the X pos for _PtInRect to as "always yes"
move.l gList(A4),A0
move.l (A0),-(SP) ; pointer to the first list field, namely the rect
dc.w $A8AD ; _PtInRect
tst.b (SP)+
beq.s .notListClick
move.l D4,-(SP) ; pt
clr.w -(SP) ; modifiers
move.l gList(A4),-(SP) ; lHandle
move.w #24,-(SP)
dc.w $A9E7 ; _LClick
bra.s .return
.notListClick
; Hit-test controls
subq #4,SP ; room for the control handle
subq #2,SP ; return value (control ID)
move.l D4,-(SP) ; thePoint = our converted point
move.l A4,-(SP) ; theWindow
pea 10(SP) ; whichControl = pointer to where to dump handle
dc.w $A96C ; _FindControl
addq #2,SP ; don't care about ID
move.l (SP)+,D3 ; pop control handle
beq.s .return
; _TrackControl to hilite while mouse down
subq #2,SP ; room for result integer
move.l D3,-(SP) ; theControl = control handle
move.l D4,-(SP) ; startPt = our converted point
clr.l -(SP) ; actionProc = 0
dc.w $A968 ; _TrackControl
move.w (SP)+,D0
beq.s .return
move.l D3,A0 ; Use the low bits of rfCon as a routine offset
move.l (A0),A0
move.l $24(A0),D0
lea DAEntry,A0
add.w D0,A0
jsr (A0)
.return rts
***************************** SUBROUTINES ****************************
UseFakeGrowBox ; takes D0 as point argument, returns NE if not inside, old/new size in D0/D1
move.l $14(A4),D1 ; something about boundsRect?
sub.l D0,D1 ; always positive so should be fine?
cmp.w #16,D1
bgt.s .miss ; return NE
swap D1
cmp.w #16,D1
bgt.s .miss ; return NE
; Hackity hack... use FakeWDEF to draw the resize-window outline
lea RealWDEFHandle,A1
move.l $7E(A4),(A1) ; save the real WDEF handle
lea FakeWDEF,A1
move.l A1,-(A1)
move.l A1,$7E(A4) ; insert the fake one
move.l $14(A4),-(SP) ; Keep botRight of old portRect
move.l A4,-(SP) ; _SizeWindow's theWindow
subq #4,SP ; _GrowWindow's return, _SizeWindow's w/h
move.l A4,-(SP) ; _GrowWindow's theWindow
move.l D0,-(SP) ; _GrowWindow's startPt
move.l SP,-(SP)
dc.w $A870 ; _LocalToGlobal on startPt
pea windowLimit
dc.w $A92B ; _GrowWindow
move.l RealWDEFHandle,$7E(A4) ; Undo the hack
clr.w -(SP) ; _SizeWindow's fUpdate (do not touch update rgn)
dc.w $A91D ; _SizeWindow
move.l $14(A4),D1 ; return old/new size in D0/D1
clr.w D0 ; return EQ
movem.l (SP)+,D0 ; preserve D0 flag
.miss
rts
; WDEF 1 lacks a wGrow routine, so we roll our own for same cosmetic result as when the window is dragged
RealWDEFHandle dc.l 0
FakeWDEFHandle dc.l 0
FakeWDEF
;FUNCTION MyWindow (varCode: INTEGER; theWindow: WindowPtr; message: INTEGER; param: LONGINT) : LONGINT;
cmp.w #5,8(SP)
beq.s .wGrow
move.l RealWDEFHandle,A0 ; Call real WDEF like WMgr would
move.l (A0),D0
bne.s .alreadyLoaded
move.l A0,-(SP)
move.l A0,-(SP)
dc.w $A9A2 ; _LoadResource
move.l (SP)+,A0
.alreadyLoaded
move.l A0,-(SP)
dc.w $A029 ; _HLock (WMgr will eventually undo this)
move.l (SP)+,A0
move.l (A0),A0
jmp (A0)
.wGrow ;
move.l 4(SP),A0 ; "param" = recommended rect pointer
move.l 4(A0),-(SP) ; copy to the stack
move.l (A0),-(SP)
sub.w #19,(SP) ; adjust rect to frame the chrome
sub.w #1,2(SP)
add.w #1,4(SP)
add.w #1,6(SP)
move.l SP,-(SP)
move.l #16*$00010001,-(SP) ; oval
dc.w $A8B0 ; _FrameRoundRect: same as _DragGrayRgn!
addq #8,SP ; pop our scratch rect
move.l (SP)+,A0 ; return
add #12,SP
clr.l (SP)
jmp (A0)
DrawFakeGrowBox ; fun little routine
kgbcnt equ 3
move.l D7,-(SP)
move.l $14(A4),-(SP) ; bottom/right of portRect
sub.l #$00080004,(SP)
dc.w $A893 ; _MoveTo
moveq.l #2-1,D7
.loop
move.l #$0004FFFC,-(SP) ; lower left to upper right of stripe
dc.w $A892 ; _Line
move.l #$FFFA0002,-(SP) ; upper right of this to lower left of next
dc.w $A894 ; _Move
dbra D7,.loop
move.l (SP)+,D7
rts
MoveWindowControls ; takes old/new size in D0/D1
movem.l A2-A3/D3,-(SP)
bsr SubPt
move.l D1,D3 ; keep delta safe because we use it a lot
; Erase everything below the list
move.l gList(A4),A0; list handle
move.l (A0),A0
move.l $14(A4),-(SP) ; botRight of window
clr.w -(SP) ; left of window
move.w 4(A0),-(SP) ; bottom of list
move.l SP,-(SP)
dc.w $A8A3 ; _EraseRect
addq #8,SP
; Adjust the list
move.l gList(A4),A2; list handle
move.l (A2),A0
move.l 4(A0),D1 ; current size field
move.l D3,D0 ; delta size
bsr AddPt
move.l D1,-(SP) ; listWidth/listHeight args to LSize
move.l A2,-(SP) ; lHandle
move.w #96,-(SP)
dc.w $A9E7 ; _LSize
; Move the buttons (what a pain!)
move.l $8C(A4),D0 ; handle to first control
.ctlLoop
beq.s .doneControls
move.l D0,A3
move.l A3,D2
move.l (A3),A3 ; deref the handle
tst.b $28(A3)
beq.s .skipControl
move.l D3,D0
btst.b #7,$24(A3) ; test high bit of refCon
bne.s .doHorizontalMove
clr.w D0
.doHorizontalMove
move.l 8(A3),D1 ; current topLeft of control
bsr AddPt
move.l D1,8(A3)
move.l 12(A3),D1 ; current botRight of control
bsr AddPt
move.l D1,12(A3)
.skipControl
move.l (A3),D0 ; get next control handle
bra.s .ctlLoop
.doneControls
move.l A4,-(SP)
dc.w $A969 ; _DrawControls
bsr DrawFakeGrowBox
movem.l (SP)+,A2-A3/D3
rts
AddPt ; adds D0 to D1, preserving D0
add.w D0,D1
swap D0
swap D1
add.w D0,D1
swap D0
swap D1
rts
SubPt ; subtracts D0 from D1, preserving D0
sub.w D0,D1
swap D0
swap D1
sub.w D0,D1
swap D0
swap D1
rts
GetFirstOwnedResID
; Resources "owned" by this DA have an ID calculated from the DA's ID
; itself. But Font/DA Mover can change our ID from the default of 12, so
; we need to do this calculation at runtime. We determine our ID by
; converting our refNum to a unit number and therefore a resource ID.
; Return base ID of "owned resources" in D0
move.l gDCE(A4),A0
move.w $18(A0),D0
not.w D0
lsl.w #5,D0
or.w #$C000,D0
rts
***************************** CONTROLS ****************************
OpenBtnRect dc.w kWinH-20,kWinW-76,kWinH-3,kWinW-20
OpenBtnTitle dc.b 5, 'Open', 201 ;...
CloseBtnRect dc.w kWinH-20,kWinW-124,kWinH-3,kWinW-79
CloseBtnTitle dc.b 5, 'Close'
DiskBtnRect dc.w kWinH-20,3,kWinH-3,3+89
DiskBtnTitle dc.b 10, 'Make Disk', 201, 0
OpenBtn
link A6,#0
bsr GetFile
tst.b (SP)
beq .cancelOpen
sub #50,SP ; push IOPB for Open
lea 50+10(SP),A0 ; SFReply.fName...
move.l A0,18(SP) ; ...IONamePtr
move.w 50+6(SP),22(SP) ; SFReply.vRefNum...IOVRefNum
clr.b 17(SP) ; IOPermssn
move.l SP,A0
dc.w $A000 ; _Open
tst.w 16(SP)
bne .cancelOpen ; maybe we should complain louder?
; Create and fill a new queue entry
clr.l D0
move.b 50+10(SP),D0
add.l #feFileName+1,D0
dc.w $A71E ; _NewPtrSysClear
move.l A0,D0
beq.s .cancelOpen
move.w 24(SP),feRefNum(A0) ; IORefNum...feRefNum
move.b 17(SP),fePermssn(A0) ; IOPermssn...fePermssn
moveq.l #1,D0
add.b 50+10(SP),D0
lea feFileName(A0),A1
lea 50+10(SP),A0
dc.w $A22E ; _BlockMoveData the name
lea -feFileName(A1),A0 ; hack to get our register back
move.l A0,A2
; And append it to the interrupt-time-accessible queue
move.l gBackendQHdr,A1
dc.w $A96F ; _Enqueue
; Append the entry to the list
subq #2,SP
move.w #1,-(SP) ; one row
move.w #$7FFF,-(SP) ; beyond current bounds
move.l gList(A4),-(SP) ; lHandle
move.w #8,-(SP)
dc.w $A9E7 ; _LAddRow
move.w (SP)+,feListRow(A2)
; And make that the string of the entry
pea feFileName+1(A2) ; dataPtr
moveq.l #0,D0
move.b feFileName(A2),D0
move.w D0,-(SP) ; dataLen
move.w #0,-(SP) ; cell column
move.w feListRow(A2),-(SP) ; cell row
move.l gList(A4),-(SP) ; lHandle
move.w #88,-(SP)
dc.w $A9E7 ; _LSetCell
.cancelOpen
unlk A6
rts
CloseBtn
clr.l -(SP) ; space for selected cell
clr.w -(SP) ; result (boolean, so clear to be safe)
st -(SP) ; next (true means find next selected cell)
pea 4(SP) ; addr of some stack space to return row
move.l gList(A4),-(SP) ; lHandle
move.w #60,-(SP)
dc.w $A9E7 ; _LGetSelect
move.w (SP)+,D0
movem.l (SP)+,D0
beq .macsAreConnected ; stop us crashing if nothing selected
swap D0 ; rownum
move.l gBackendQHdr,A0
lea .findElementMatchingRow,A1
bsr QueueForEach ; will leave element in A0
tst.w feConnCnt(A0)
bne .macsAreConnected
movem.l A0/D0,-(SP)
move.l gBackendQHdr,A1
dc.w $A96E ; _Dequeue (A0=el, A1=hdr)
movem.l (SP),A0/D0
sub #50,SP
move.w feRefNum(A0),24(SP) ; set ioRefNum
move.l SP,A0
dc.w $A001 ; _Close
add #50,SP
movem.l (SP),A0/D0
dc.w $A01F ; _DisposPtr (A0=el)
movem.l (SP),A0/D0
move.l gBackendQHdr,A0
lea .decrementElementsGreaterThanRow,A1
bsr QueueForEach ; (D0=rownum))
movem.l (SP),A0/D0
subq #8,SP ; room for the rect
move.l SP,-(SP) ; rect ptr
swap D0
move.l D0,-(SP) ; cell
move.l gList(A4),-(SP) ; lHandle
move.w #76,-(SP)
dc.w $A9E7 ; _LRect
movem.l (SP)+,D0/D1 ; pop the result rect into registers
bsr AddPt ; find the central point of the rect, offset a bit
asr.w #1,D1
sub.w #16,D1
swap D1
asr.w #1,D1
sub.w #16,D1
swap D1
move.l D1,-(SP) ; and save that rect
move.l SP,-(SP)
dc.w $A870 ; _LocalToGlobal
move.l (SP)+,D3 ; okayish way to keep it?
movem.l (SP)+,A0/D0
move.w #1,-(SP) ; count
move.w D0,-(SP) ; rowNum
move.l gList(A4),-(SP) ; lHandle
move.w #36,-(SP)
dc.w $A9E7 ; _LDelRow
move.l D3,D0
movem.l D3-D7/A2-A4,-(SP)
bsr Poof
movem.l (SP)+,D3-D7/A2-A4
.macsAreConnected ; Can't delete it
rts
.findElementMatchingRow ; callback for QueueForEach
cmp.w feListRow(A0),D0
bne.s .searchContinue
addq #4,SP ; cancel the loop
.searchContinue
rts
.decrementElementsGreaterThanRow ; callback for QueueForEach
cmp.w feListRow(A0),D0
bhi.s .noDecrement
sub.w #1,feListRow(A0)
.noDecrement
rts
DiskBtn rts
QueueForEach ; A0 = pointer to q header, A1 = func, preserves ALL other registers
addq #2,A0
.loop
move.l (A0),-(SP) ; saves us from wasting a data register
tst.l (SP)
beq.s .exit
move.l (SP)+,A0
jsr (A1)
bra.s .loop
.exit
addq #4,SP
rts
******************************* DATA AREA **********************************
theWindow DC.W 50,5,50+kWinH,5+kWinW ; window top,left,bottom,right
windowLimit DC.W kWinH,kWinW,32767,32767 ; minH,minW,maxH,maxW
theList DC.W 0,0,kWinH-24,kWinW-15 ; list top,left,bottom,right
listBounds DC.W 0,0,0,1
GetFile ; push a 74 byte SFReply structure to the stack
; push an SFReply structure
sub #74,SP
move.l 74(SP),(SP) ; return address at top of stack
;PROCEDURE SFGetFile (where: Point; prompt: Str255; fileFilter: ProcPtr;
;numTypes: INTEGER; typeList: SFTypeList; dlgHook: ProcPtr; VAR reply:
;SFReply);
clr.l -(SP) ; where (point), default
clr.l -(SP) ; prompt string
clr.l -(SP) ; fileFilter
move.w #-1,-(SP) ; numTypes
clr.l -(SP) ; typeList
clr.l -(SP) ; dlgHook
pea 26(SP) ; reply structure
move.w #2,-(SP) ; SFGetFile selector
dc.w $A9EA ; _Pack3
rts
InstallAndOpenDriver ; driver pointer is in A0, returns err code in D0
movem.l A3-A4/D7,-(SP)
move.l A0,A4 ; keep the driver pointer in A4
; slightly unorthodox approach...
move.l $11C,A3 ; unit table base
clr.l D7
move.w $1D2,D7 ; unit table length in bytes
add.l D7,D7
add.l D7,D7
tst.l -4(A3,D7) ; Extend unit table by 1 slot if needed
beq.s .lastEntryIsFree
addq.l #4,D7
move.l D7,D0
dc.w $A71E ; _NewPtrSysClear (new one)
move.l A0,A1
move.l A3,A0
move.l D7,D0
subq.l #4,D0
dc.w $A22E ; _BlockMoveData (old to new)
move.l A1,A3
move.l A1,$11C
add.w #1,$1D2
dc.w $A01F ; _DisposPtr (old)
.lastEntryIsFree
move.l A4,A0
move.w $1D2,D0
neg.w D0 ; -(lenUT) = refnum highest slot
dc.w $A43D ; _DrvrInstall ReserveMem
move.l -4(A3,D7),A0 ; We need to populate this ourselves
move.l (A0),A0
move.l A4,(A0) ; set dCtlDriver pointer
move.w (A4),4(A0) ; drvrFlags to dCtlFlags
move.w 2(A4),$22(A0) ; drvrDelay to dCtlDelay
move.w 4(A4),$24(A0) ; drvrEMask to dCtlEMask
move.w 6(A4),$26(A0) ; drvrMenu to dCtlMenu
; Open the driver
sub #$32,SP
move.l SP,A0
clr.b $1B(A0) ; IOPermssn = whatever is allowed
pea $12(A4) ; IOFileName = directly from the DRVR
move.l (SP)+,$12(A0)
dc.w $A000 ; _Open
move.w $18(A0),D0 ; return IORefNum
add #$32,SP
movem.l (SP)+,A3-A4/D7
rts
Poof ; animation, takes D0, ONLY WORKS WITH BASIC QD!
link A6,#-0
cmp.w #$3fff,$28E ; non-color qd ONLY! (so far)
ble .return
move.l D0,-(SP) ; D3 = screen rect
add.l #$00200020,(SP)
move.l D0,-(SP)
move.l SP,D3
move.l #$00200020,-(SP) ; D4 = bitmap rect (0,0,32,32)
clr.l -(SP)
move.l SP,D4
bsr PushBitmapToStack ; D5 = "save screen" bitmap
move.l SP,D5
bsr PushBitmapToStack ; D6 = "scratch" bitmap
move.l SP,D6
; A3 = "artwork" bitmap (changeable)
move.l #$00200020,-(SP) ; bounds.botRight
clr.l -(SP) ; bounds.topLeft
move.w #4,-(SP) ; rowBytes
subq #4,SP ; baseAddr!!!
move.l SP,A3
; A4 = screenBits bitmap
move.l (A5),A4 ; QD globals
lea -122(A4),A4
move.l A4,-(SP) ; srcBits = screenBits
move.l D5,-(SP) ; dstBits = "save screen" bitmap
move.l D3,-(SP) ; srcRect = screen rect
move.l D4,-(SP) ; dstRect = bitmap rect
clr.w -(SP) ; mode = srcCopy
clr.l -(SP) ; no maskRgn
dc.w $A8EC ; _CopyBits
clr.l D7 ; animation loop counter
move.l $16A,A2 ; and tick counter
.loop
cmp.l #(PoofDataEnd-PoofData)/256+1,D7 ; drawn all frames and cleaned up?
beq.s .return
tst.l D7 ; delay -- but not before the first frame
beq.s .dontwait
addq.l #3,A2
.waitloop cmp.l $16A,A2
bhi.s .waitloop
.dontwait
; Copy the background to the scratch buffer
move.l D5,-(SP) ; srcBits = "save screen" bitmap
move.l D6,-(SP) ; dstBits = "scratch" bitmap
move.l D4,-(SP) ; srcRect = bitmap rect
move.l D4,-(SP) ; dstRect = bitmap rect
clr.w -(SP) ; mode = srcCopy
clr.l -(SP) ; no maskRgn
dc.w $A8EC ; _CopyBits
cmp.l #5,D7
beq.s .erasePoof
lsl.l #7,D7
lea PoofData,A0
add.l #(PoofDataEnd-PoofData)/2,A0
add.l D7,A0
move.l A0,(A3)
; Apply the mask
move.l A3,-(SP) ; srcBits = "artwork" bitmap
move.l D6,-(SP) ; dstBits = "scratch" bitmap
move.l D4,-(SP) ; srcRect = bitmap rect
move.l D4,-(SP) ; dstRect = bitmap rect
move.w #3,-(SP) ; mode = srcBic (erase)
clr.l -(SP) ; no maskRgn
dc.w $A8EC ; _CopyBits
lea PoofData,A0
add.l D7,A0
move.l A0,(A3)
lsr.l #7,D7
; Apply the image itself
move.l A3,-(SP) ; srcBits = "artwork" bitmap
move.l D6,-(SP) ; dstBits = "scratch" bitmap
move.l D4,-(SP) ; srcRect = bitmap rect
move.l D4,-(SP) ; dstRect = bitmap rect
move.w #1,-(SP) ; mode = srcOr
clr.l -(SP) ; no maskRgn
dc.w $A8EC ; _CopyBits
.erasePoof ; Draw the scratch buffer to the screen
move.l D6,-(SP) ; srcBits = "scratch" bitmap
move.l A4,-(SP) ; dstBits = screenBits
move.l D4,-(SP) ; srcRect = bitmap rect
move.l D3,-(SP) ; dstRect = screen rect
clr.w -(SP) ; mode = srcCopy
clr.l -(SP) ; no maskRgn
dc.w $A8EC ; _CopyBits
addq.l #1,D7
bra.s .loop
.return
unlk A6
rts
PushBitmapToStack ; assumes 32x32, leaves bitmap structure on stack
move.l (SP)+,A0
sub #32*32/8,SP ; the actual data
move.l #$00200020,-(SP) ; bounds.botRight
clr.l -(SP) ; bounds.topLeft
move.w #32/8,-(SP) ; rowBytes
pea 10(SP) ; baseAddr
jmp (A0) ; return
PoofData ; icons followed by masks
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PoofDataEnd
Reference in New Issue View Git Blame Copy Permalink