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Old 23 November 2015, 23:53   #1
BastyCDGS
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Location: Freiburg / Germany
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Ripping DKK IFF-SMUS files

Heyho folks!

I'm just busy ripping DKK songs. They're IFF-SMUS, should be easy, right?
No it isn't. Because of that simple fact:
I wrote small assembly program to extract DKK:sound/soundData files.
This format is pretty simple:
ULONG name_chunk; // NAME
ULONG size; // size+1 && 1
UBYTE *formData; // FORM....CHNK
ULONG next_name_chunk
ULONG next_size
UBYTE *formNextData
...
and so on, so it's just a collection of IFF files which my assembly program wrote to RAM:

That wouldn't be a problem, if the files weren't completely out of date.
I'm able to load the SMUS (e.g. sorrow.smu, victory.smu) within DeluxeMusic, but it doesn't recognize samples. I also tried almost any program on TOSEC in Apps for that (no luck).
So I changed instrument samples by default DeluxeMusic samples with somewhat hearable result but still not original.
Then I decided to use orignal "odd" sample. However the in3 file mentioning odd has a fasttrem IFF-envelope.
Anyone here, has an idea on how to decode that properly?
It seems like a VERY, VERY old IFF-standard. in3 referring to odd has:
FORM....INSTPTCH....VLUM....SAMP

Anyone has an idea?
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Old 23 November 2015, 23:55   #2
BastyCDGS
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Oh, forgot to mention: DKK = Death Knights of Krynn
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Old 23 November 2015, 23:58   #3
BastyCDGS
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Here's Devpac 3.01 program for extract (copy DKK:sound/soundData to RAM:soundData before execution):
include "exec/exec_lib.i"
include "exec/memory.i"
include "libraries/dos.i"

BUFSIZE equ 512
FILE_BUFSIZE equ 256

move.l #BUFSIZE,d0
moveq #MEMF_PUBLIC,d1
move.l d0,d5
move.l 4.w,a6
jsr _LVOAllocMem(a6)
tst.l d0
beq NoMem
move.l d0,a2
moveq #0,d0
lea DOSName(pc),a1
jsr _LVOOpenLibrary(a6)
tst.l d0
beq NoDOS
lea -(FILE_BUFSIZE+4)(sp),sp
move.l sp,a3
move.l a3,a4
move.l #"RAM:",(a3)+
lea ChunkNames(pc),a5
move.l d0,a6
lea FileName(pc),a0
move.l a0,d1
move.l #MODE_OLDFILE,d2
jsr _LVOOpen(a6)
move.l d0,d6
beq LoopDone
Loop: move.l d6,d1
move.l a2,d2
moveq #8,d3
jsr _LVORead(a6)
move.l d6,d1
movem.l (a5),d2/d4
cmp.l d3,d0
bne.s LoopDone
cmp.l (a2),d2
bne.s LoopDone
move.l a3,d2
move.l 4(a2),d3
addq.l #1,d3
bclr #0,d3
jsr _LVORead(a6)
cmp.l d3,d0
bne.s LoopDone
move.l a4,d1
move.l #MODE_NEWFILE,d2
jsr _LVOOpen(a6)
move.l d0,d7
beq.s LoopDone
move.l d6,d1
move.l a2,d2
moveq #8,d3
jsr _LVORead(a6)
cmp.l d3,d0
bne.s LoopErr
cmp.l (a2),d4
bne.s LoopErr
move.l d7,d1
jsr _LVOWrite(a6)
cmp.l d3,d0
bne.s LoopErr
move.l 4(a2),d4
BufLoop: move.l d5,d3
cmp.l d4,d3
bls.s BufLoopLast
move.l d4,d3
BufLoopLast: move.l d6,d1
jsr _LVORead(a6)
cmp.l d3,d0
bne.s LoopErr
move.l d7,d1
jsr _LVOWrite(a6)
cmp.l d3,d0
bne.s LoopErr
sub.l d5,d4
bhi.s BufLoop
move.l d7,d1
jsr _LVOClose(a6)
bra Loop
cnop 0,4
LoopErr: move.l d7,d1
jsr _LVOClose(a6)
LoopDone: move.l d6,d1
jsr _LVOClose(a6)
move.l a6,a1
move.l 4.w,a6
lea FILE_BUFSIZE+4(sp),sp
jsr _LVOCloseLibrary(a6)
NoDOS: move.l a2,a1
move.l d5,d0
jsr _LVOFreeMem(a6)
NoMem: moveq #0,d0
rts

cnop 0,4
ChunkNames: dc.b 'NAMEFORM'
FileName: dc.b 'RAM:soundData',0
DOSName: dc.b 'dos.library',0
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