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Club Amiga de Montreal - CAM
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CAM_CD_1.iso
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324.lha
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ColorReq
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ColorTest.asm
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Assembly Source File
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1989-12-09
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5KB
|
220 lines
;==========================================================================
; An assembly application to demo the use of the dissidents ColorTool.
; This example code was written by Jeff Glatt and is in the public domain.
; The actual "color.library" is copyrighted by dissidents software. The
; color.library may be used by and distributed with any commercial software
; as long as the library is not modified in any way.
OPTIMON ;CAPE directives
OBJFILE "rad:ColorTest.o"
ADDSYM
SMALLOBJ
_LVODoColor equ -30
XREF _SysBase
XREF _LVOOpenLibrary,_LVOCloseLibrary,_LVOOpenWindow,_LVOCloseWindow
XREF _LVOWait,_LVOGetMsg,_LVOReplyMsg
XREF _LVOOpenScreen,_LVOCloseScreen,_LVODisplayBeep
XDEF _main
_main:
;-----Open Graphics. Since this is in ROM, let's assume it will open.
; If the user doesn't have at least 1.2, screw him.
moveq #33,d0
lea GfxName,a1
movea.l _SysBase,a6
jsr _LVOOpenLibrary(a6)
move.l d0,_GfxBase
;---------Open Intuition---------
moveq #33,d0
lea IntuiName,a1
jsr _LVOOpenLibrary(a6)
move.l d0,_IntuitionBase
;---------Open Color Lib---------
moveq #0,d0
lea ColorName,a1
jsr _LVOOpenLibrary(a6)
move.l d0,_ColorBase
beq clselibs
;---------Open screen----------
lea newWindowHi,a3
lea newScreenHi,a0
moveq #4,d2 ;hires depth limit
;---If passed an arg from CLI, get the screen resolution
move.l 4(sp),d0
subq.l #1,d0
beq.s Hires ;no arg
subq.l #1,d0
bcs.s Hires
movea.l 8(sp),a2
addq.l #4,a2
movea.l (a2)+,a1
cmpi.b #'h',(a1)
beq.s nlow
lea newWindowLo,a3
lea newScreenLo,a0
moveq #5,d2
;---If another arg, use it as the default depth
nlow subq.l #1,d0
bcs.s Hires
movea.l (a2),a1
moveq #0,d0
move.b (a1),d0
subi.b #'0',d0
bls.s Hires
cmp.b d2,d0
bhi.s Hires
move.w d0,8(a0)
Hires movea.l _IntuitionBase,a6
jsr _LVOOpenScreen(a6)
move.l d0,30(a3)
beq clsecolor
;--------Open window on our screen-------
movea.l a3,a0
jsr _LVOOpenWindow(a6)
move.l d0,WindowPtr
beq clsescr
;-------------------set up and do IDCMP loop--------------
movea.l d0,a0
movea.l 86(a0),a2
moveq #0,d7
move.b 15(a2),d1
bset.l d1,d7
;---Get IntuiMsg
idcmp:
movea.l a2,a0
movea.l _SysBase,a6
jsr _LVOGetMsg(a6)
move.l d0,d1
bne.s chkmsg
;---wait for an IntuiMsg
move.l d7,d0
jsr _LVOWait(a6)
bra.s idcmp
;---Get needed fields and reply to msg
chkmsg:
moveq #20,d1
movea.l d0,a1
adda.l d1,a1 ;CLASS field
move.l (a1)+,d2
move.w (a1)+,d3
movea.l d0,a1
jsr _LVOReplyMsg(a6)
bclr.l #9,d2
bne.s close_up
cmpi.w #$68,d3
bne.s idcmp
movea.l 30(a3),a1 ;get Screen address
suba.l a0,a0 ;use original color table for default gadget
movea.l _ColorBase,a6
jsr _LVODoColor(a6)
bpl.s idcmp ;must be SAVE (0) or CANCEL (1)
;---If negative return value, then an error
movea.l 30(a3),a0
movea.l _IntuitionBase,a6
jsr _LVODisplayBeep(a6)
bra.s idcmp
close_up:
;=============== drain the window IDCMP and close it ================
movea.l _SysBase,a6
move.l WindowPtr,d0
beq.s clsescr
empit movea.l WindowPtr,a0
movea.l 86(a0),a0
jsr _LVOGetMsg(a6)
move.l d0,d1
beq.s empty
movea.l d0,a1
jsr _LVOReplyMsg(a6)
bra.s empit
empty movea.l WindowPtr,a0
movea.l _IntuitionBase,a6
jsr _LVOCloseWindow(a6)
;-------Close the screen--------
clsescr:
move.l 30(a3),d0
beq.s clsecolor
movea.l d0,a0
jsr _LVOCloseScreen(a6)
;----------Close libs----------
clsecolor:
movea.l _SysBase,a6
movea.l _ColorBase,a1
jsr _LVOCloseLibrary(a6)
clselibs:
movea.l _GfxBase,a1
jsr _LVOCloseLibrary(a6)
movea.l _IntuitionBase,a1
jsr _LVOCloseLibrary(a6)
moveq #0,d0
rts
DEPTH equ 4
HIRES equ $8000
DEPTH2 equ 5
LORES equ 0
XDEF _GfxBase,_IntuitionBase,_ColorBase
_GfxBase dc.l 0
_IntuitionBase dc.l 0
_ColorBase dc.l 0
XDEF newScreenHi
newScreenHi:
dc.w 0,0,640,200
dc.w DEPTH
dc.b 0,1
dc.w HIRES
dc.w 15 ;CUSTOMSCREEN
dc.l TextAttr
dc.l ScreenTitle,0,0
XDEF newWindowHi
newWindowHi:
dc.w 0,12,640,188
dc.b -1,-1
dc.l $208
dc.l $110F
dc.l 0,0,WindowTitle
dc.l 0,0
dc.w 640,188,640,188
dc.w 15
XDEF newScreenLo
newScreenLo:
dc.w 0,0,320,200
dc.w DEPTH2
dc.b 0,1
dc.w LORES
dc.w 15 ;CUSTOMSCREEN
dc.l TextAttr
dc.l ScreenTitle,0,0
XDEF newWindowLo
newWindowLo:
dc.w 0,12,320,188
dc.b -1,-1
dc.l $208
dc.l $110F
dc.l 0,0,WindowTitle
dc.l 0,0
dc.w 320,188,320,188
dc.w 15
XDEF WindowPtr
WindowPtr dc.l 0
TextAttr:
dc.l FontName
dc.w 8,0
WindowTitle dc.b 'Click Close Gadget to Exit',0
ScreenTitle dc.b 'Color Requester Demo',0
GfxName dc.b 'graphics.library',0
IntuiName dc.b 'intuition.library',0
FontName dc.b 'topaz.font',0
ColorName dc.b 'color.library',0