文件列表:

LICENSE (1318, 2020-09-14)
Makefile (1769, 2020-09-14)
extra (0, 2020-09-14)
extra\BruteForceRNC1Encoder.cpp (15109, 2020-09-14)
extra\Makefile (527, 2020-09-14)
fuzzing (0, 2020-09-14)
fuzzing\all_formats.dict (568, 2020-09-14)
fuzzing\build.sh (144, 2020-09-14)
sh (394, 2020-09-14)
fuzzing\fuzz-secondary.sh (236, 2020-09-14)
fuzzing\fuzz-settings.sh (653, 2020-09-14)
fuzzing\fuzz.cpp (1775, 2020-09-14)
fuzzing\get-afl.sh (447, 2020-09-14)
main.cpp (7388, 2020-09-14)
src (0, 2020-09-14)
src\ACCADecompressor.cpp (2592, 2020-09-14)
src\ACCADecompressor.hpp (876, 2020-09-14)
src\ARTMDecompressor.cpp (3288, 2020-09-14)
src\ARTMDecompressor.hpp (876, 2020-09-14)
src\BLZWDecompressor.cpp (3029, 2020-09-14)
src\BLZWDecompressor.hpp (915, 2020-09-14)
src\BZIP2Decompressor.cpp (12124, 2020-09-14)
src\BZIP2Decompressor.hpp (1568, 2020-09-14)
src\BZIP2Table.hpp (5194, 2020-09-14)
src\CBR0Decompressor.cpp (1899, 2020-09-14)
src\CBR0Decompressor.hpp (892, 2020-09-14)
src\CRMDecompressor.cpp (6767, 2020-09-14)
src\CRMDecompressor.hpp (1723, 2020-09-14)
src\CYB2Decoder.cpp (1851, 2020-09-14)
src\CYB2Decoder.hpp (871, 2020-09-14)
src\DEFLATEDecompressor.cpp (10609, 2020-09-14)
src\DEFLATEDecompressor.hpp (1875, 2020-09-14)
src\DLTADecode.cpp (1577, 2020-09-14)
src\DLTADecode.hpp (1024, 2020-09-14)
src\DMSDecompressor.cpp (21370, 2020-09-14)
src\DMSDecompressor.hpp (1314, 2020-09-14)
... ...

# Ancient - Modern decompressor for old data compression formats This is a collection of decompression routines for old formats popular in the Amiga, Atari computers and some other systems from 80's and 90's as well as some that are currently used which were used in a some specific way in these old systems. For simple usage both a simple command line application as well as a simple API to use the decompressors are provided. The compression algorithm is automatically detected in most cases, however there are some corner cases where it is not entirely reliable due to weaknesses in the old format used. Please see the main.cpp and Decompressor.hpp to get an idea. Even though most of these algorithms are still available for download, scavenging and using them might prove to be a challenge. Thus the purpose of this project is to: * Provide a clean, modern implementation of the algorithms - Typically the implementations were not meant to be used outside of the original systems they were made for. Some other ported implementations are incomplete, bad quality or direct translations from old M68K assembly code. * Provide a clean BSD-style licensing - Original implementations or their ports might have strange license or no visible license at all. There are also implementations that have been ripped off from some other source thus their legality is questionable at best. * Provide a tested implementation - The code is no good if it does not work properly and the old code have a lot of corner cases. These implementations are tested using a cache of available files (~10k) that used these algorithms. Although it does not offer any guarantee especially when we are talking about undocumented formats, it gives hope that there are less "stupid errors" in the code. This code should compile cleanly on most C++17 capable compilers (C++14 compilers might need tweaking), and it is tested on clang and MSVC. For MSVC please use https://github.com/tronkko/dirent or similar to compile to command line tool Currently there are no plans to add password protected file support nor any kind of decryption capability apart from some very basic password bypassing in some formats that can be done easily Decompression algorithms provided: * CrunchMania by Thomas Schwarz * CrM!: Crunch-Mania standard-mode * Crm!: Crunch-Mania standard-mode, sampled * CrM2: Crunch-Mania LZH-mode * Crm2: Crunch-Mania LZH-mode, sampled * Disk Masher System a.k.a. DMS * Supports all different compression methods (NONE,SIMPLE,QUICK,MEDIUM,DEEP,HEAVY1,HEAVY2) * Supports password bypassing * File Imploder (and most of its clones) * ATN! * BDPI * CHFI * EDAM * IMP! * M.H. * RDC9 * FLT! (verification missing) * Dupa (verification missing) * PARA (verification missing) * PowerPacker * PP 1.1 (verification missing) * PP 2.0 * Rob Northen compressors. * RNC1: Both old and formats utilizing the same header. heuristics for detecting the current one * RNC2: RNC version 2 stream * Turbo Packer by Wolfgang Mayerle. * Standard gzip * Standard bzip2, both normal and randomized * Zip decompressor backend (decompressor only, no Zip file format reading yet) * Shrink * Reduce * Implode * Deflate * Deflate*** * Bzip2 * Lha/Lzh decompressor backend (decompressor only, no Lha file format reading yet) * LH0: Null compressor * LH1: LZRW-compressor with 4kB window * LH2: LZRW-compressor with Dynamic Huffman Encoding (experimental) * LH3: LZRW-compressor (experimental) * LH4: LZRW-compressor with 4kB window * LH5: LZRW-compressor with 8kB window * LH6: LZRW-compressor with 32kB window * LH7: LZRW-compressor with ***kB window * LH8: LZRW-compressor with ***kB window (Joe Jared extension) * LHX: LZRW-compressor with up to 512kB window (UnLHX extension) * LZ4: Null compressor * LZ5: LZ-compressor * LZS: LZ-compressor * PM0: Null compressor * PM1: LZ-compressor * PM2: LZ-compressor * MMCMP: Music Module Compressor * StoneCracker * SC: StoneCracker v2.69 - v2.81 * SC: StoneCracker v2.92, v2.99 * S300: StoneCracker v3.00 * S310: StoneCracker v3.10, v3.11b * S400: StoneCracker pre v4.00 * S401: StoneCracker v4.01 * S403: StoneCracker v4.02a * S404: StoneCracker v4.10 * XPK-encapsulated files * ACCA: Andre's Code Compression Algorithm * ARTM: Arithmetic encoding compressor * BLZW: LZW-compressor * BZP2: Bzip2 backend for XPK * CBR0: RLE compressor * CBR1: RLE compressor * CRM2: CrunchMania backend for XPK * CRMS: CrunchMania backend for XPK, sampled * CYB2: xpkCybPrefs container * DLTA: Delta encoding * DUKE: NUKE with Delta encoding * ELZX: LZX-compressor * FAST: LZ77-compressor * FBR2: CyberYAFA compressor * FRHT: LZ77-compressor * FRLE: RLE compressor * GZIP: Deflate backend for XPK * HUFF: Huffman modeling compressor * HFMN: Huffman modeling compressor * ILZR: Incremental Lempel-Ziv-Renau compressor * IMPL: File Imploder backend for XPK * LHLB: LZRW-compressor * LIN1: Lino packer * LIN2: Lino packer * LIN3: Lino packer * LIN4: Lino packer * LZBS: CyberYAFA compressor * LZCB: LZ-compressor * LZW2: CyberYAFA compressor * LZW3: CyberYAFA compressor * LZW4: CyberYAFA compressor * LZW5: CyberYAFA compressor * MASH: LZRW-compressor * NONE: Null compressor * NUKE: LZ77-compressor * PWPK: PowerPacker backend for XPK * RAKE: LZ77-compressor * RDCN: Ross Data Compression * RLEN: RLE compressor * SASC: LZ-compressor with arithmetic encoding * SDHC: Sample delta huffman compressor * SHR3: LZ-compressor with arithmetic encoding * SHRI: LZ-compressor with arithmetic encoding * SHSC: Context modeling compressor * SLZ3: CyberYAFA compressor * SLZX: LZX-compressor with delta encoding * SMPL: Huffman compressor with delta encoding * SQSH: Compressor for sampled sounds * TDCS: LZ77-compressor * ZENO: LZW-compressor Special thanks go to Cholok for providing me references to many of the XPK-compressors. BZIP2 tables for randomization have been included, they have BZIP2-license. SASC/SHSC decompressors have been re-implemented by using the original HA code from Harri Hirvola as reference. (No code re-used) Some of the rare Lzh-compressors have been re-implemented by using Lhasa as a reference. (No code re-used) I'm slowly adding new stuff. If your favorite is not listed contact me and maybe I can add it. Current work in progress * Completing XPK: DCMB, DMCU (maybe), PPMQ * Disk images support for Warp and DiskSqueeze Not planned: * PPC only XPK compressors Wishlist: * More files for my testbench * More DMS images * XPK DMCI and DMCD compressors. I can't find it anywhere or find anyone who knows anything about it. Would be fun to add it for completeness * XPK TLTA compressor/encoder. ditto. Feedback: tz at iki dot fi

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