mirror of
https://github.com/A2osX/A2osX.git
synced 2024-10-01 07:56:43 +00:00
364 lines
6.2 KiB
Plaintext
364 lines
6.2 KiB
Plaintext
PR#3
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PREFIX /A2OSX.SRC
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NEW
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INC 1
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AUTO 6
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.LIST OFF
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.OP 65C02
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.OR $2000
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.TF /A2OSX.BOOT/SBIN/DESKTOP
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*--------------------------------------
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.INB INC/MACROS.I
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.INB INC/A2OSX.I
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.INB INC/LIBGFX.I
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*--------------------------------------
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* File Header (16 Bytes)
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*--------------------------------------
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CS.START cld
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jmp (.1,x)
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.DA #$61 6502,Level 1 (65c02)
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.DA #1 BIN Layout Version 1
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.DA 0
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.DA CS.END-CS.START
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.DA 0
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.DA 0
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.DA 0
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*--------------------------------------
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* Relocation Table
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*--------------------------------------
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.1 .DA CS.INIT
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.DA CS.RUN
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.DA CS.DOEVENT
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.DA CS.QUIT
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L.LIBGFX .DA LIBGFX
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L.DEVNAME.GFX .DA DEVNAME.GFX
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L.DEVNAME.MOUSE .DA DEVNAME.MOUSE
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L.MSG.INIT .DA MSG.INIT
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L.SetPixel.X .DA SetPixel.X
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L.DrawLine.X1 .DA DrawLine.X1
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.DA 0
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*--------------------------------------
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CS.INIT >LDYA L.MSG.INIT
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>SYSCALL SYS.PSTROutYA
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>LDYA L.LIBGFX
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>SYSCALL SYS.LoadLibYA
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sta hLIBGFX
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>LDYA L.DEVNAME.GFX
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>SYSCALL SYS.GetDevByNameYA
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bcc .10
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rts
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.10 stx hDevGFX
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ldx pDev
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phx
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ldx pDev+1
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phx
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>STYA pDevGFX
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>STYA pDev
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ldx #DEVMGR.OPEN
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jsr GoDevGFX
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.11 >LDYA L.DEVNAME.MOUSE
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>SYSCALL SYS.GetDevByNameYA
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bcc .20
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inc DEVNAME.MOUSE+4
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lda DEVNAME.MOUSE+4
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cmp #'8'
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bne .11
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beq .21 No mouse found, skip mouse init
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.20 stx hDevMouse
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>STYA pDevMouse
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>STYA pDev
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ldx #DEVMGR.OPEN
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jsr GoDevMouse
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.21 pla
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sta pDev+1
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pla
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sta pDev
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lda hDevGFX
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>LIBCALL hLibGFX,LIBGFX.InitGFXA
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lda (pPs)
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ora #S.PS.F.EVENT Now accept events
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sta (pPs)
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jsr Destop.Paint
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clc
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rts
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*--------------------------------------
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CS.RUN clc
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rts
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*--------------------------------------
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CS.DOEVENT lda hDevMouse Mouse is active ?
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beq .1 go check KB
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ldy #S.EVT.hDEV
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cmp (pEvent),y Event coming from Mouse ?
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bne .1
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lda A2osX.ASCREEN GUI screen active ?
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cmp #3
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bne .98 no, discard mouse event & exit
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ldy #S.EVT.DATALO
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lda (pEvent),y
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and #4 mouse move
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beq .98
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ldy #S.EVT.DATAW2
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lda (pEvent),y
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sta SetPixel.Y
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dey
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lda (pEvent),y X.HI
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sta SetPixel.X+1
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dey
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lda (pEvent),y X.LO
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sta SetPixel.X
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lda #4
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sta SetPixel.Mode
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lda #15
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sta SetPixel.Color
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>LDYA L.SetPixel.X
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ldx #DEVMGR.GFX.SETPIXEL
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jsr GoDevGFX
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.98 clc
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rts
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.1 lda (pEvent)
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cmp #S.EVT.F.KEY
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bne .99
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ldy #S.EVT.DATAHI
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lda (pEvent),y
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bne .99 Open Apple ?
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lda A2osX.ASCREEN
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cmp #3
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bne .98
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jsr Destop.Paint
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clc
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rts
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.99 sec
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rts
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*--------------------------------------
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CS.QUIT clc
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rts
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*--------------------------------------
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Destop.Paint lda #4
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sta SetPixel.Mode
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lda #0
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sta SetPixel.Color
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lda #0
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sta SetPixel.Y
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.1 lda #0
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sta SetPixel.X
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lda /0
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sta SetPixel.X+1
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.2 >LDYA L.SetPixel.X
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ldx #DEVMGR.GFX.SETPIXEL
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jsr GoDevGFX
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lda SetPixel.X
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clc
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adc #4
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sta SetPixel.X
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bcc .3
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inc SetPixel.X+1
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.3 lda SetPixel.X
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cmp #279
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lda SetPixel.X+1
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sbc /279
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bcc .2
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inc SetPixel.Y
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lda SetPixel.Y
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cmp #192
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beq .8
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and #$7
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bne .1
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inc SetPixel.Color
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lda SetPixel.Color
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cmp #16
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bne .1
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.8 rts
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*--------------------------------------
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* Midpoint algorithm
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{
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dx=x2-x1;
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if (dx=0) => VLINE;
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if(dx<0)
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{
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swap(&x1,&x2);
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swap(&y1,&y2);
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dx=-dx;
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}
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dy=y2-y1;
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if (dy=0) => HLINE;
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if (dy<0)
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{
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incY=-1;
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dy=-dy;
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}
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else
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{
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incY=1;
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}
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if(dy>dx)
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{
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incE=2*dx;
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d=incE-dy;
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incNE=2*(dx-dy);
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while(y1<y2)
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{
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if(d>0)
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{
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d=d+incNE;
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x1=x1+incY;
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}
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else
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d=d+incE;
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y1++;
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putpixel(x1,y1,COLOR);
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}
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}
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else
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{
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incE=2*dy;
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d=incE-dx;
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incNE=2*(dy-dx);
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while(x1<x2)
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{
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if(d>0)
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{
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d=d+incNE;
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y1=y1+incY;
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}
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else
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d=d+incE;
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x1++;
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putpixel(x1,y1,COLOR);
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}
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}
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*--------------------------------------
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DrawLine >STYA ZPBase
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ldy #9
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.1 lda (ZPBase),y
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sta ZPCtrlBlk,y
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dey
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bpl .1
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lda ZPCtrlBlk+4 X2.LO
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sec
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sbc ZPCtrlBlk X1.LO
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sta DrawLine.DX
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lda ZPCtrlBlk+5 X2.HI
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sbc ZPCtrlBlk+1 X1.HI
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sta DrawLine.DX+1
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ora DrawLine.DX DX=0?
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beq DrawLineV yes, call DRV.VLINE
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bcs .2 is CS, X1<X2, no swap,no ABS
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lda ZPCtrlBlk SWAP X1,X2
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ldx ZPCtrlBlk+4
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sta ZPCtrlBlk+4
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stx ZPCtrlBlk
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lda ZPCtrlBlk+1
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ldx ZPCtrlBlk+5
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sta ZPCtrlBlk+5
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stx ZPCtrlBlk+1
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lda ZPCtrlBlk+2 SWAP Y1,Y2
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ldx ZPCtrlBlk+6
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sta ZPCtrlBlk+6
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stx ZPCtrlBlk+2
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lda ZPCtrlBlk+3
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ldx ZPCtrlBlk+7
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sta ZPCtrlBlk+7
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stx ZPCtrlBlk+3
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lda #0 DX=-DX
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sec
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sbc DrawLine.DX
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sta DrawLine.DX
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lda #0
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sbc DrawLine.DX+1
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sta DrawLine.DX+1
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.2 lda ZPCtrlBlk+6 Y2.LO
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sec
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sbc ZPCtrlBlk+2 Y1.LO
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sta DrawLine.DY
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lda ZPCtrlBlk+7 Y2.HI
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sbc ZPCtrlBlk+3 Y1.HI
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sta DrawLine.DY+1
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ora DrawLine.DY DY=0?
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beq DrawLineH yes, call DRV.HLINE
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bcs .3 is CS, Y1<Y2
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.3
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*--------------------------------------
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GoDevGFX jmp (pDevGFX)
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GoDevMouse jmp (pDevMouse)
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*--------------------------------------
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CS.END
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DEVNAME.GFX >PSTRING "GFX"
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DEVNAME.MOUSE >PSTRING "MOU1"
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LIBGFX >PSTRING "libgfx.o"
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MSG.INIT >PSTRING "DESKTOP:Init...\n"
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hLibGFX .BS 1
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hDevGFX .BS 1
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pDevGFX .BS 2
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hDevMouse .BS 1
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pDevMouse .BS 2
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SetPixel.X .BS 2
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SetPixel.Y .BS 2
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SetPixel.Mode .BS 1
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SetPixel.Color .BS 1
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DrawLine.X1 .BS 2
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DrawLine.Y1 .BS 2
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DrawLine.X2 .BS 2
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DrawLine.Y2 .BS 2
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DrawLine.Mode .BS 1
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DrawLine.Color .BS 1
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MAN
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SAVE SBIN/DESKTOP.S
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ASM
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