Editing Paired ARC+DIR file
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− | '''ARC''' files (short for '''Archive''') and '''DIR''' files ( | + | '''ARC''' files (likely short for '''Archive''') and '''DIR''' files (technically short for '''Bundle''', though |
+ | |||
+ | '''Directory''' makes more sense and avoids conflict with [[Pikmin BUN Files|'''BUN''' Files]]) are two peas in a pod, | ||
+ | |||
+ | together representing one of the many Binary Large Object (BLOB) archive formats used in Pikmin 1. Together, they will | ||
+ | |||
+ | henceforth be referred to as the ''Paired ARC+DIR Files'' archive. | ||
+ | |||
+ | With minimal metadata, {{unsure|the Paired ARC+DIR Files archive was likely used to reduce load time by packing several files | ||
+ | |||
+ | into one}}. The purpose it serves is different from the [[Pikmin BUN Files|Bundle]] archive, however, {{unsure|as standalone | ||
+ | |||
+ | files within the archive can be unpacked independent of the files before it}}. This makes the Paired ARC+DIR Files useful | ||
+ | |||
+ | for archiving large directories with varied purposes. | ||
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__TOC__ | __TOC__ | ||
− | |||
− | |||
− | == | + | ==File Structure== |
− | DIR files | + | As mentioned before, the Paired ARC+DIR Files archive consists of two files: the mock-directory (DIR) and the BLOB archive |
− | Here is <code> | + | (ARC). Think of the mock-directory as a map to navigate through the BLOB archive. |
+ | |||
+ | ===DIR=== | ||
+ | DIR files consist of a header followed by a repeating struct for each mock-filepath. | ||
+ | |||
+ | Here is <code>root\dataDir\archives\pelletsbin.dir</code> annotated for reference. | ||
[[File:DIR_file_documentation.png]][[File:Minty_Meeo_Documentation_Legend.png]] | [[File:DIR_file_documentation.png]][[File:Minty_Meeo_Documentation_Legend.png]] | ||
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| 0x00 || 4 || Size of DIR file | | 0x00 || 4 || Size of DIR file | ||
|- | |- | ||
− | | 0x04 || 4 || Number of | + | | 0x04 || 4 || Number of structs |
|- | |- | ||
|} | |} | ||
{| class="wikitable" | {| class="wikitable" | ||
− | |+ Mock- | + | |+ Mock-Directory Struct |
! Offset || Size || Purpose | ! Offset || Size || Purpose | ||
|- | |- | ||
Line 33: | Line 49: | ||
| 0x04 || 4 || Size of file in ARC | | 0x04 || 4 || Size of file in ARC | ||
|- | |- | ||
− | | 0x08 || 4 || Mock- | + | | 0x08 || 4 || Mock-Directory String Length |
|- | |- | ||
− | | 0x0C || 0x08 value || Mock- | + | | 0x0C || 0x08 value || Mock-Directory Path |
|- | |- | ||
|} | |} | ||
− | ==== Mock- | + | ====Mock-Directory==== |
− | The DIR file emulates filepaths. When a file is unpacked in-game, it is assumed that whatever code is responsible treats the | + | The DIR file emulates filepaths. When a file is unpacked in-game, it is assumed that whatever code is responsible treats the |
− | === ARC === | + | entry in the DIR file as a legitimate filepath on the disc, starting from the root. |
− | Here is <code> | + | |
+ | ===ARC=== | ||
+ | Here is <code>root\dataDir\archives\pelletsbin.arc</code> annotated to demonstrate searching the BLOB archive. Without the | ||
+ | |||
+ | DIR file as a guide, the only way you could possibly differentiate between files would be with the <code>0xCC</code> padding | ||
+ | |||
+ | between files. | ||
[[File:ARC_file_documentation.png]][[File:Minty_Meeo_Documentation_Legend.png]] | [[File:ARC_file_documentation.png]][[File:Minty_Meeo_Documentation_Legend.png]] | ||
− | ==== <code>0xCC</code> | + | ====<code>0xCC</code> Padding==== |
− | + | For whatever reason, files in the ARC are always padded out to have an amount of bytes that is a multiple of 32. These bytes | |
+ | |||
+ | are not included in the file size recorded in the DIR for each file, so the exact purpose of this is unknown. {{unsure|It | ||
+ | |||
+ | could be an absolute necessity, or it could be completely unnecessary.}} | ||
+ | |||
+ | |||
+ | ==Extra Information== | ||
+ | Every Paired ARC+DIR Files archive has an uncompressed copy elsewhere on the disc. | ||
+ | * In <code>root\dataDir\tekis</code> and <code>root\dataDir\bosses</code>, a file named <code>arc_all.ini</code> can be | ||
+ | |||
+ | found. These INI files holds nothing, but give us a hint at how the developer's archiving tool functioned. | ||
+ | * It is unknown if the every file in the archives is identical to its uncompressed sister file. | ||
+ | In the [[OpenGL / Dolphin System]], many files are not read from the Paired ARC+DIR Files archives like they are in the final | ||
+ | |||
+ | game, and are instead read from the un-archived versions. | ||
+ | |||
+ | Paired ARC+DIR Files archives that have "bin" in their filename curiously only contain the '''BIN''' files from their | ||
− | + | respective directory. | |
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− | |||
− | |||
− | + | The <code>log.txt</code> files left in the root of Pikmin 1 [[Pikmin|versions USA Demo, USA v1.00, and JPN v1.02]] detail the | |
− | + | plugin "[[OpenGL / Dolphin System|plugTexConv]]" creating a Paired ARC+DIR Files archive. | |
− | |||
[[Category:Pikmin]] | [[Category:Pikmin]] | ||
− | [[Category:File | + | [[Category:File formaats]] |
+ | {{Credits|[[User:Minty_Meeo|Minty_Meeo]]}} |