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| PLEASE READ THE http://wiki.xentax.com/index.php/Talk:DISCUSSION
| | Fileformat is (C)thriXXX. thriXXX game licenses strictly forbid reverse engineering. |
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| {{GRAFTemplate1|
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| file_extension=<font color="blue">B<font color="blue">X<font color="blue">P</font></font></font>|
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| format_type=Archive|
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| endian_order=Little Endian|
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| date_posted=01:08, 4 Jan 2006|
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| format_specifications=<font color="blue"> ''' // ARCHIVE HEADER ''' </font> <br>
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| : char {8} - Header <font color="purple">("BXP" + <font color="purple">(byte)</font>2 + "ARCH")</font> <br>
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| : uint64 {8} - Archive Length <font color="darkgreen">[+32]</font> <br>
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| : uint64 {8} - Padding <font color="purple">(88,39,255,135,206,225,196,1)</font> <br>
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| : uint64 {8} - null <br>
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| <br>
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| <font color="blue"> ''' // ARCHIVE INDEX ''' </font> <br>
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| : char {8} - Header <font color="purple">("BXP" + <font color="purple">(byte)</font>2 + "INDX")</font> <br>
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| : uint64 {8} - <font color="red"> '' Unknown '' </font> <br>
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| : uint64 {8} - Padding <font color="purple">(88,39,255,135,206,225,196,1)</font> <br>
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| : uint64 {8} - null <br>
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| : byte {16} - <font color="red"> '' CRC? '' </font> <br>
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| : byte {16} - <font color="red"> '' CRC? <font color="purple">(same as above field)</font> '' </font> <br>
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| <br>
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| <font color="blue"> ''' // FOLDER TREE ''' </font> <br>
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| : char {8} - Header <font color="purple">("BXP" + <font color="purple">(byte)</font>2 + "TREE")</font> <br>
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| : uint64 {8} - Offset to the "// FILE DATA" <font color="darkgreen">[+128]</font> <font color="purple">(ie relative to "// DIRECTORIES")</font> <br>
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| : uint64 {8} - Padding <font color="purple">(88,39,255,135,206,225,196,1)</font> <br>
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| : uint64 {8} - null <br>
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| <br>
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| <font color="blue"> ''' // DIRECTORIES ''' </font> <br>
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| : <font color="blue"> ''' // for each directory ''' </font> <br>
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| :: char {8} - Header <font color="purple">("BXP" + <font color="purple">(byte)</font>2 + "SDIR")</font> <br>
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| :: uint64 {8} - <font color="red"> '' Unknown Length/Offset '' </font> <br>
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| :: byte {16} - null <br>
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| :: uint32 {4} - Number Of Sub-Directories in this directory <br>
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| :: uint32 {4} - Number Of Files in this directory <br>
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| :: uint64 {8} - Length Of Filename Directory Component <font color="purple">(length of subDirName+null + fileNames+nulls)</font> <br>
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| :: byte {16} - null <br>
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| <br>
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| :: <font color="blue"> ''' // for each sub-directory in this directory ''' </font> <br>
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| ::: uint32 {4} - null <br>
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| ::: uint32 {4} - <font color="red"> '' Relative Offset To This Directory? <font color="purple">(32)</font> <font color="purple">(relative to the start of this subDirEntry)</font> '' </font> <br>
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| ::: uint32 {4} - <font color="red"> '' Hash? '' </font> <br>
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| ::: char {X} - Sub-Directory Name <br>
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| ::: byte {1} - null Sub-Directory Name Terminator <br>
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| ::: byte {X} - null Padding to a multiple of 32 bytes <br>
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| <br>
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| :: <font color="blue"> ''' // for each file in this directory ''' </font> <br>
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| ::: uint64 {8} - Filename Offset <font color="purple">(relative to the start of the filename directory)</font> <br>
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| ::: uint64 {8} - null <br>
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| ::: byte {16} - <font color="red"> '' CRC? '' </font> <br>
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| ::: uint32 {4} - null <br>
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| ::: uint32 {4} - <font color="red"> '' Unknown <font color="purple">(1)</font> '' </font> <br>
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| ::: uint64 {8} - null <br>
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| ::: uint64 {8} - <font color="red"> '' File Length <font color="purple">(not including the file header fields?)</font> '' </font> <br>
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| ::: uint64 {8} - File Offset <font color="purple">(relative to the start of the file data)</font> <br>
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| <br>
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| :: <font color="blue"> ''' // repeat for each sub-directory (repeat from "// for each directory") ''' </font> <br>
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| <br>
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| : byte {32} - <font color="red"> '' CRC? '' </font> <br>
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| <br>
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| <font color="blue"> ''' // FILENAME DIRECTORY ''' </font> <br>
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| : <font color="blue"> ''' // for each file ''' </font> <br>
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| :: char {X} - Filename <br>
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| :: byte {1} - null Filename Terminator <br>
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| <br>
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| : byte {X} - null Padding to a multiple of 32 bytes <br>
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| <br>
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| <font color="blue"> ''' // FILE DATA ''' </font> <br>
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| : char {8} - Header <font color="purple">("BXP" + <font color="purple">(byte)</font>2 + "DATA")</font> <br>
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| : uint64 {8} - Total Length Of File Data <font color="purple">(length of everything in "// for each file")</font> <br>
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| : uint64 {8} - Padding <font color="purple">(88,39,255,135,206,225,196,1)</font> <br>
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| : uint64 {8} - null <br>
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| <br>
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| : <font color="blue"> ''' // for each file ''' </font> <br>
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| :: char {8} - Header <font color="purple">("BXP" + <font color="purple">(byte)</font>2 + "FILE")</font> <br>
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| :: uint64 {8} - File Length <font color="purple">(length of "X - File Data" only)</font> <font color="darkgreen">[+30]</font> <br>
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| :: uint64 {8} - <font color="red"> '' CRC? '' </font> <br>
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| :: uint32 {4} - null <br>
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| :: uint32 {4} - <font color="red"> '' Unknown <font color="purple">(1)</font> '' </font> <br>
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| :: byte {X} - File Data <br>
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| :: byte {X} - null Padding to a multiple of 32 bytes|
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| notes=<i>These were copied from the template, I'm not sure if they're on the right page.</i>
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| '''Notes by Gregory''':
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| 1.
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| In the version 24, the file names are encrypted as XOR 0xBE.
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| 2.
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| "BXP" + (byte) in all headers: In the version 24, the (byte)=3.
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| 3.
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| // ARCHIVE INDEX
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| char {8} - Header ("BXP" + (byte)2 + "INDX")
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| uint64 {8} - Unknown '''<----- this shuld be relative offset to the first "BXP.FILE"'''
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| I have used folloxing piece of C++ code:
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| ArchiveOffset = 0x00;
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| IndexOffset = 0x20;
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| TreeOffset = 0x60;
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| DirOffset = 0x80;
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| DataOffset = DirOffset + (__int64*) &buffer[TreeOffset + 8];
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| FileOffset = DirOffset + (__int64*) &buffer[IndexOffset + 8];
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| 4.
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| There are some directories containing both files and sub-directories. In such case, the files are listed prior to the sub-directories.
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| I guess that the structure of directory is:
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| {
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| char {8} - Header ("BXP" + (byte)2 + "SDIR")
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| uint64 {8} - Unknown Length/Offset
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| byte {16} - null
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| uint32 {4} - Number Of Sub-Directories in this directory
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| uint32 {4} - Number Of Files in this directory
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| uint64 {8} - Length Of Filename Directory Component (length of subDirName+null + fileNames+nulls)
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| byte {16} - null
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| for (each file)
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| {
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| uint64 {8} - Filename Offset (relative to the start of the filename directory)
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| uint64 {8} - null
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| byte {16} - CRC?
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| uint32 {4} - null
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| uint32 {4} - Unknown (1) // or (0) - a switch?
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| uint64 {8} - null
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| uint64 {8} - File Length (not including the file header fields?)
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| uint64 {8} - File Offset (relative to the start of the file data)
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| }
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| for (each sub-directory)
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| {
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| uint32 {4} - null // Filename Offset (relative to the start of the filename directory)
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| uint32 {4} - Relative Offset To This Directory? (32) (relative to the start of this subDirEntry)
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| }
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| for (each entry) // entry is file or sub-directory
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| {
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| uint32 {4} - Hash?
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| }
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| for (each entry)
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| {
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| char {X} - Filename // XOR 0xBE in version 24
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| byte {1} - null Filename Terminator // 0xBE in version 24
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| }
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| }
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| 5. I have successfuly extracted all files from the archive. Sound (*.ogg) files play well, however some other files (scripts) seems to be encrypted. Further I am wholly confused with CRCs, HASHs and Paddings for now, so I can not build an modified archive.|
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| bms_script=Not written yet|
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| programs=* [[Game Extractor|Game Extractor]]|
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| documentation=None|
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| }}
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| [[Category:No BMS]] [[Category:Almost Done]] [[Category:Archive]] [[Category:PC]]
| |