7 Commits

Author	SHA1	Message	Date
Kevin Bortis	6be36b6bda	Add Zstandard compression support ... Implements zstd as an alternative to LZMA for data block and subchannel compression using the allocated compression IDs 4 (kCompressionZstd) and 5 (kCompressionZstdCst). Adds zstd v1.5.7 as a bundled submodule with a static library build including x86_64 assembly fast path for decompression. Write path selects zstd or LZMA based on the zstd option. Subchannel blocks use zstd+CST instead of LZMA+CST when enabled. LZMA properties header is only written for LZMA-based compression types, preventing format corruption in zstd-compressed images. Activated via options string: "zstd=true;zstd_level=19". Default remains LZMA for backwards compatibility. Tested: SHA-256 verified lossless roundtrips across 9 disc systems (Dreamcast, Saturn, Mega CD, PC Engine CD, Neo Geo CD, PS1, PS2 CD, PS2 DVD) and PS1 SBI subchannel preservation with zstd+CST.	2026-03-19 08:45:07 +01:00
Natalia Portillo	5a8a8c630f	Add BLAKE3 cryptographic hash function integration	2025-10-03 03:46:55 +01:00
Natalia Portillo	88816c37fd	Add xxHash submodule and CMake integration for fast hashing	2025-09-30 20:04:45 +01:00
Natalia Portillo	d62e3119c2	Add slog logging support and update error handling in various modules	2025-08-13 20:16:42 +01:00
Natalia Portillo	0e530dff85	Add uthash.	2022-10-02 03:12:33 +01:00
Natalia Portillo	f5360fe146	Add FLAC.	2022-05-28 13:39:32 +01:00
Natalia Portillo	f16ad00636	Add unit test for CRC64.	2022-05-28 11:41:19 +01:00