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+Compact.s
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+Compact.s
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;---------------------------------------------------------------------
; ** ** ** *** *** **** ** *** ** ****
; **** *** *** ** ** ** ** ** **** ** ** ** **
; ** ** ** * ** ** ** *** ***** ** ** *** ** **
; ****** ** ** ** ** ** ** ** ****** ** ** **
; ** ** ** ** ** ** * ** ** ** ** ** * ** ** ** **
; ** ** ** ** *** *** ***** ** ** *** ** ****
;---------------------------------------------------------------------
; AMOSPro Picture compactor extension source code,
; By François Lionet
; AMOS, AMOSPro and AMOS Compiler (c) Europress Software 1990-1992
; To be used with AMOS1.3 and over
;---------------------------------------------------------------------
; This file is public domain
;---------------------------------------------------------------------
; Please refer to the _Music.s file for more informations
;---------------------------------------------------------------------
ExtNb equ 2-1
;---------------------------------------------------------------------
; Include the files automatically calculated by
; Library_Digest.AMOS
;---------------------------------------------------------------------
Include "+Compact_Size.s"
Include "+Compact_Labels.s"
Include "+AMOS_Includes.s"
Include "+Version.s"
Start dc.l C_Tk-C_Off
dc.l C_Lib-C_Tk
dc.l C_Title-C_Lib
dc.l C_End-C_Title
dc.w 0
dc.b "AP20"
;---------------------------------------------------------------------
; Creates the pointers to functions
;---------------------------------------------------------------------
MCInit
C_Off
REPT Lib_Size
MC
ENDR
***********************************************************
* COMPACTOR TOKENS
; TOKEN_START
C_Tk dc.w 1,0
dc.b $80,-1
dc.w L_InPack2,L_Nul
dc.b "!pac","k"+$80,"I0t0",-2
dc.w L_InPack6,L_Nul
dc.b $80,"I0t0,0,0,0,0",-1
dc.w L_InSPack2,L_Nul
dc.b "!spac","k"+$80,"I0t0",-2
dc.w L_InSPack6,L_Nul
dc.b $80,"I0t0,0,0,0,0",-1
dc.w L_InUnpack1,L_Nul
dc.b "!unpac","k"+$80,"I0",-2
dc.w L_InUnpack2,L_Nul
dc.b $80,"I0t0",-2
dc.w L_InUnpack3,L_Nul
dc.b $80,"I0,0,0",-1
; TOKEN_END
dc.w 0
dc.l 0 Important!
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; THE LIBRARY
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
;---------------------------------------------------------------------
Lib_Ini 0
;---------------------------------------------------------------------
C_Lib
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; COLD START
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Lib_Def Compact_Cold
; - - - - - - - - - - - - -
cmp.l #"APex",d1 Version 1.10 or over?
bne.s BadVer
moveq #ExtNb,d0 * Extension number
move.w #$0110,d1 * Current version
rts
; In case this extension is runned on AMOSPro V1.00
BadVer moveq #-1,d0 * Bad version number
sub.l a0,a0
rts
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; ONE EMPTY SPACE
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Lib_Empty
; - - - - - - - - - - - - -
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; PACK Screen,Bank#
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Lib_Par InPack2
; - - - - - - - - - - - - -
move.l d3,-(a3)
clr.l -(a3)
clr.l -(a3)
move.l #10000,d3
move.l d3,-(a3)
Rbra L_InPack6
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; PACK Screen,Bank#
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Lib_Par InPack6
; - - - - - - - - - - - - -
Rbsr L_PacPar
Rbsr L_GetSize
Rbsr L_ResBank
Rbsr L_Pack
rts
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; SPACK Screen,Bank#
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Lib_Par InSPack2
; - - - - - - - - - - - - -
move.l d3,-(a3)
clr.l -(a3)
clr.l -(a3)
move.l #10000,d3
move.l d3,-(a3)
Rbra L_InSPack6
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; SPACK Screen,Bank#,X1,Y1 TO X2,Y2
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Lib_Par InSPack6
; - - - - - - - - - - - - -
Rbsr L_PacPar
Rbsr L_GetSize
add.l #PsLong,d0
Rbsr L_ResBank
* Screen definition header
move.l #SCCode,(a1)
move.w EcTx(a0),PsTx(a1)
move.w EcTy(a0),PsTy(a1)
move.w EcNbCol(a0),PsNbCol(a1)
move.w EcNPlan(a0),PsNPlan(a1)
move.w EcCon0(a0),PsCon0(a1)
move.w EcAWX(a0),PsAWx(a1)
move.w EcAWY(a0),PsAWy(a1)
move.w EcAWTX(a0),PsAWTx(a1)
move.w EcAWTY(a0),PsAWTy(a1)
move.w EcAVX(a0),PsAVx(a1)
move.w EcAVY(a0),PsAVy(a1)
movem.l a0/a1,-(sp)
moveq #31,d0
lea EcPal(a0),a0
lea PsPal(a1),a1
SPac1 move.w (a0)+,(a1)+
dbra d0,SPac1
movem.l (sp)+,a0/a1
lea PsLong(a1),a1
* Finish packing!
Rbsr L_Pack
rts
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; UNPACK Bank# -> To current screen
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Lib_Par InUnpack1
; - - - - - - - - - - - - -
move.l ScOnAd(a5),d0
Rbeq L_JFoncall
move.l d0,a1
moveq #-1,d1
moveq #-1,d2
move.l d3,d0
Rbra L_UPack
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; UNPACK Bank#,X,Y -> To current screen
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Lib_Par InUnpack3
; - - - - - - - - - - - - -
move.l ScOnAd(a5),d0
Rbeq L_JFoncall
move.l d0,a1
move.l d3,d2
move.l (a3)+,d1
move.l (a3)+,d0
Rbra L_UPack
; - - - - - - - - - - - - -
Lib_Def UPack
; - - - - - - - - - - - - -
movem.l d1/a1,-(sp)
Rjsr L_Bnk.OrAdr
movem.l (sp)+,d1/a1
* Autoback
tst.w EcAuto(a1) * Is screen autobacked?
bne.s .Dbl
Rjsr L_UnPack_Bitmap * NOPE! Do simple unpack
Rbeq L_NoPac
rts
.Dbl movem.l d0-d7/a0-a2,-(sp) * YEP! First step
EcCall AutoBack1
movem.l (sp),d0-d7/a0-a2
btst #BitDble,EcFlags(a1) * DOUBLE BUFFER?
beq.s ABPac1
Rjsr L_UnPack_Bitmap
EcCall AutoBack2 * Second step
movem.l (sp),d0-d7/a0-a2
Rjsr L_UnPack_Bitmap
move.w d0,-(sp)
EcCall AutoBack3 * Third step
bra.s ABPac2
ABPac1 Rjsr L_UnPack_Bitmap * SINGLE BUFFER autobacked
move.w d0,-(sp)
EcCall AutoBack4
ABPac2 tst.w (sp)+
movem.l (sp)+,d0-d7/a0-a2
Rbeq L_NoPac
rts
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; UNPACK Bank# TO screen -> Creates/Erases screen!
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Lib_Par InUnpack2
; - - - - - - - - - - - - -
move.l (a3)+,d0 Get bank address
Rjsr L_Bnk.OrAdr
move.l d3,d0 Get screen number
Rjsr L_UnPack_Screen Performs unpacking
tst.w d0
beq.s .Err
move.l a0,ScOnAd(a5) Branch new screen into AMOS
move.w EcNumber(a0),ScOn(a5)
addq.w #1,ScOn(a5)
rts
.Err tst.w d1
Rbeq L_NoPac
Rjmp L_OOfMem
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; Reserves memory bank, A1= number
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Lib_Def ResBank
; - - - - - - - - - - - - -
movem.l a0/d1/d2,-(sp)
move.l d0,d2
moveq #(1<<Bnk_BitData),d1
move.l a1,d0
lea BkPac(pc),a0
Rjsr L_Bnk.Reserve
Rbeq L_JOOfMem
move.l a0,a1
movem.l (sp)+,a0/d1/d2
rts
; Definition packed picture bank
; ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
BkPac: dc.b "Pac.Pic."
even
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; Unpile parameters
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Lib_Def PacPar
; - - - - - - - - - - - - -
move.l d3,d5
move.l (a3)+,d4
move.l (a3)+,d3
move.l (a3)+,d2
lsr.w #3,d4
lsr.w #3,d2
* Screen
move.l 4(a3),d1
Rjsr L_GetEc
move.l d0,a2
cmp.w EcTLigne(a0),d4
bls.s PacP1
move.w EcTLigne(a0),d4
PacP1 cmp.w EcTy(a0),d5
bls.s PacP2
move.w EcTy(a0),d5
PacP2 sub.w d2,d4
Rble L_JFoncall
sub.w d3,d5
Rble L_JFoncall
; Number of memory bank
move.l (a3)+,a1
cmp.l #$10000,a1
Rbcc L_JFoncall
addq.l #4,a3
rts
***************************************************************************
*
* BITMAP COMPACTOR
* A0: Origin screen datas
* A1: Destination zone
* A2: Origin screen bitmap
* D2: DX in BYTES
* D3: DY in LINES
* D4: TX in BYTES
* D5: TY in LINES
*
***************************************************************************
* ESTIMATE THE SIZE OF A PICTURE
******* Makes differents tries
* And finds the best square size in D1
; - - - - - - - - - - - - -
Lib_Def GetSize
; - - - - - - - - - - - - -
movem.l a1-a3/d6-d7,-(sp)
lea TSize(pc),a3
move.l Buffer(a5),a1
moveq #0,d7
move.w d5,d7
clr.w -(sp)
move.l #$10000000,-(sp)
GSize1 move.l d7,d5
move.w (a3)+,d1
beq.s GSize2
divu d1,d5
swap d5
tst.w d5
bne.s GSize1
swap d5
bsr PacSize
cmp.l (sp),d0
bcc.s GSize1
move.l d0,(sp)
move.w d1,4(sp)
bra.s GSize1
GSize2 move.l (sp)+,d0
move.w (sp)+,d1
move.l d7,d5
divu d1,d5
movem.l (sp)+,a1-a3/d6-d7
rts
******* Simulate a packing
PacSize movem.l d1-d7/a0-a4/a6,-(sp)
move.l a5,-(sp)
* Fake data zone
move.w d2,Pkdx(a1)
move.w d3,Pkdy(a1)
move.w d4,Pktx(a1)
move.w d5,Pkty(a1)
move.w d1,Pktcar(a1)
* Reserve intermediate table space
move.w d1,d0
mulu d4,d0
mulu d5,d0
mulu EcNPlan(a0),d0
lsr.l #3,d0
addq.l #2,d0
move.l d0,-(sp)
move.l a0,-(sp)
SyCall MemFast
move.l a0,d0
move.l (sp)+,a0
Rbeq L_JOOfMem
move.l d0,a6
move.l d0,-(sp)
* Prepare registers
move.l a2,a4 ;a4--> picture address
lea PkDatas1(a1),a5 ;a5--> main datas
move.w EcTLigne(a0),d7
move.w d7,d5
mulu d1,d5 ;d5--> SY line of square
move.w Pkdy(a1),d3
mulu d7,d3
move.w Pkdx(a1),d0
ext.l d0
add.l d0,d3
move.w EcNPlan(a0),-(sp)
* Main packing
moveq #7,d1 * Bit pointer
moveq #0,d0
Iplan: move.l (a4)+,a3
add.l d3,a3
move.w Pkty(a1),d6
subq.w #1,d6
Iligne: move.l a3,a2
move.w Pktx(a1),d4
subq.w #1,d4
Icarre: move.l a2,a0
move.w Pktcar(a1),d2
subq.w #1,d2
Ioct0: cmp.b (a0),d0 * Compactage d'un carre
beq.s Ioct1
move.b (a0),d0
addq.l #1,a5
bset d1,(a6)
Ioct1: dbra d1,Ioct2
moveq #7,d1
addq.l #1,a6
clr.b (a6)
Ioct2: add.w d7,a0
dbra d2,Ioct0
addq.l #1,a2
dbra d4,Icarre
add.l d5,a3
dbra d6,Iligne
subq.w #1,(sp)
bne.s Iplan
addq.l #2,sp
addq.l #1,a5
* Packing of first pointers table
move.l a5,a6
move.l 4(sp),d2
move.l d2,d0
subq.w #1,d2
lsr.w #3,d0
addq.w #2,d0
add.w d0,a5
move.l (sp),a0
moveq #0,d0
moveq #7,d1
Icomp2 cmp.b (a0)+,d0
beq.s Icomp2a
move.b -1(a0),d0
addq.l #1,a5
Icomp2a dbra d2,Icomp2
* Final size (EVEN!)
move.l a5,d2
sub.l a1,d2
addq.l #3,d2
and.l #$FFFFFFFE,d2
* Free intermediate memory
move.l (sp)+,a1
move.l (sp)+,d0
move.l (sp)+,a5
SyCall MemFree
* Finished!
move.l d2,d0
movem.l (sp)+,d1-d7/a0-a4/a6
rts
******* Packing methods
TSize dc.w 1,2,3,4,5,6,7,8,12,16,24,32,48,64,0
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; REAL PACKING!!!
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Lib_Def Pack
; - - - - - - - - - - - - -
* Header of the packed bitmap
movem.l d1-d7/a0-a4/a6,-(sp)
move.l a5,-(sp)
* Packed bitmap header
move.l #BMCode,Pkcode(a1)
move.w d2,Pkdx(a1)
move.w d3,Pkdy(a1)
move.w d4,Pktx(a1)
move.w d5,Pkty(a1)
move.w d1,Pktcar(a1)
move.w EcNPlan(a0),Pknplan(a1)
* Reserve intermediate table space
move.w d1,d0
mulu d4,d0
mulu d5,d0
mulu EcNPlan(a0),d0
lsr.l #3,d0
addq.l #2,d0
move.l d0,-(sp)
move.l a0,-(sp)
SyCall MemFast
move.l a0,d0
move.l (sp)+,a0
Rbeq L_JOOfMem
move.l d0,a6
move.l d0,-(sp)
* Prepare registers
move.l a2,a4 ;a4--> picture address
lea PkDatas1(a1),a5 ;a5--> main datas
move.w EcTLigne(a0),d7
move.w d7,d5
mulu d1,d5 ;d5--> SY line of square
move.w Pkdy(a1),d3
mulu d7,d3
move.w Pkdx(a1),d0
ext.l d0
add.l d0,d3
move.w EcNPlan(a0),-(sp)
* Main packing
moveq #7,d1 * Bit pointer
moveq #0,d0
clr.b (a5) * First byte to zero
clr.b (a6)
plan: move.l (a4)+,a3
add.l d3,a3
move.w Pkty(a1),d6
subq.w #1,d6
ligne: move.l a3,a2
move.w Pktx(a1),d4
subq.w #1,d4
carre: move.l a2,a0
move.w Pktcar(a1),d2
subq.w #1,d2
oct0: cmp.b (a0),d0 * Compactage d'un carre
beq.s oct1
move.b (a0),d0
addq.l #1,a5
move.b d0,(a5)
bset d1,(a6)
oct1: dbra d1,oct2
moveq #7,d1
addq.l #1,a6
clr.b (a6)
oct2: add.w d7,a0
dbra d2,oct0
addq.l #1,a2 * Carre suivant en X
dbra d4,carre
add.l d5,a3 * Ligne suivante
dbra d6,ligne
subq.w #1,(sp) * Plan couleur suivant
bne.s plan
addq.l #2,sp
addq.l #1,a5
; Packing of first pointers table
move.l a5,d0
sub.l a1,d0
move.l d0,PkPoint2(a1)
move.l a5,a6
move.l 4(sp),d0
move.l d0,d2
subq.w #1,d2
lsr.w #3,d0
addq.w #2,d0
add.w d0,a5
move.l a5,d0
sub.l a1,d0
move.l d0,PkDatas2(a1)
move.l (sp),a0
moveq #0,d0
moveq #7,d1
clr.b (a5)
clr.b (a6)
comp2: cmp.b (a0)+,d0
beq.s comp2a
move.b -1(a0),d0
addq.l #1,a5
move.b d0,(a5)
bset d1,(a6)
comp2a: dbra d1,comp2b
moveq #7,d1
addq.l #1,a6
clr.b (a6)
comp2b: dbra d2,comp2
* Free intermediate memory
move.l (sp)+,a1
move.l (sp)+,d0
move.l (sp)+,a5
SyCall MemFree
movem.l (sp)+,d1-d7/a0-a4/a6
rts
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; JUMP TO ERROR MESSAGES
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Lib_Def JFoncall
; - - - - - - - - - - - - -
moveq #23,d0
Rjmp L_Error
; - - - - - - - - - - - - -
Lib_Def JScnop
; - - - - - - - - - - - - -
moveq #47,d0
Rjmp L_Error
; - - - - - - - - - - - - -
Lib_Def JOOfMem
; - - - - - - - - - - - - -
moveq #24,d0
Rjmp L_Error
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; ERROR HANDLING
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Lib_Def NoPac
; - - - - - - - - - - - - -
moveq #0,d0
Rbra L_Custom
; - - - - - - - - - - - - -
Lib_Def NoScr
; - - - - - - - - - - - - -
moveq #1,d0
Rbra L_Custom
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; ERRORS: First routine
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Lib_Def Custom
; - - - - - - - - - - - - -
lea ErrMes(pc),a0
moveq #0,d1
moveq #ExtNb,d2
moveq #0,d3
Rjmp L_ErrorExt
ErrMes dc.b "Not a packed bitmap",0
dc.b "Not a packed screen",0
even
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; ERRORS: Second routine
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Lib_Def Custom2
; - - - - - - - - - - - - -
moveq #0,d1
moveq #ExtNb,d2
moveq #0,d3
Rjmp L_ErrorExt
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; Finish the library
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Lib_End
; - - - - - - - - - - - - -
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; TITLE OF THE EXTENSION
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
C_Title dc.b "AMOSPro Picture Compactor V "
Version
dc.b 0,"$VER: "
Version
dc.b 0
Even
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; END OF THE EXTENSION
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
C_End dc.w 0
even