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pgw00k, posted Sun Jun 28, 2015 11:45 am (5968)

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Hi,all,i get some files from the game package,but i can't get the real format,so i hope someone can give me some help.
1.First type files are like 0302_UnPack,i think it may be some texture files but i can't sure.They have the head strings PPHD8.

2.And second type files are like 0D02_Pack,i think it may be a compress files,they all have the 00 05 on start.And it have many 38 70 symbols.

There are some simple files.

aluigi, posted Sun Jun 28, 2015 4:02 pm (5972)

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The unpack files seem to contain VAG data from about offset 0x400

pgw00k, posted Mon Jul 06, 2015 9:20 am (6160)

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aluigi wrote:

The unpack files seem to contain VAG data from about offset 0x400

thank you aluigi!It seem to be true,but I also can't do anything about the pphd8 files,would you have some ideas?They should be textures but i can find the size or other useful thing.

aluigi, posted Mon Jul 06, 2015 11:23 am (6165)

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In the files you provided I see only VAG data.
There 4 chunk types at the beginning PPHD, PPPG, PPTN, PPVA that may contain some information about the vag files in the archive.
But I see absolutely nothing about textures.

Try this script:

Code:

goto 0x28
get BASE_OFF long
math BASE_OFF   0x20
for OFFSET = 0x38 < BASE_OFF
    goto OFFSET
    getdstring TYPE 4
    get SIZE long
    savepos OFFSET
    if TYPE == "PPVA"
        getdstring DUMMY 0x18
        xmath FILES "(SIZE - 0x18) / 0x10"
        for i = 0 < FILES
            get OFFSET long
            get XSIZE long
            get SIZE long
            get DUMMY long
            math OFFSET   BASE_OFF
            log "" OFFSET SIZE
        next i
    else
        log TYPE OFFSET SIZE
    endif
    math OFFSET   SIZE
next

pgw00k, posted Tue Jul 07, 2015 3:55 am (6171)

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aluigi wrote:

The unpack files seem to contain VAG data from about offset 0x400

Thanks your help.
i use the script but it can't get a right VAG file which can play,it doesn't matter ,i care about the textures more.
This is the whole packhttps://yadi.sk/d/LST9MftJhiARs,
and this can unpack it (forgive me poor bms language)

Code:

for OFFSET = 0x10 < 0x6b00
    goto OFFSET    
    get BASE_OFF long
    get XSIZE long
    get FILES short
    get Z short
    get SIZE long
    math BASE_OFF * 0x800
    goto BASE_OFF
    log BASE_OFF BASE_OFF XSIZE
    math OFFSET   0x10
next

i guess the FILES is the number of compression contain,and the Z is show it whether compress because it only have 1 or 0.
and the BOOT.BIN have some C code (looks like),and some file name?may be you could find something in it.

aluigi, posted Tue Jul 07, 2015 8:29 am (6184)

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It's more complex than what it looks.
The following is the corrected script (same extracted files so it's not a real correction), I guess that the compressed files are splitted in chunks of 0x4000 bytes.

Code:

goto 0x10
for
    get OFFSET long
    if OFFSET == 0
        break
    endif
    get ZSIZE long
    get CHUNKS short
    get ZIP short
    get SIZE long
    math OFFSET * 0x800
    if ZIP == 0
        log "" OFFSET SIZE
    else
        # unsupported, must handle chunks too
        log "" OFFSET ZSIZE
    endif
next

I don't know what is the compression.

pgw00k, posted Thu Jul 09, 2015 2:48 pm (6258)

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aluigi wrote:

I don't know what is the compression.

Thank you aluigi,i will try some others way about it,thank for your help again!!