PAK (Metroid Prime): Difference between revisions
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Compressed files begin with their 32-bit decompressed size, followed by the compressed file data. Metroid Prime uses zlib, which is easily recognized from zlib's 0x78DA header at the start of the compressed data. Each file is compressed as a single zlib stream. | Compressed files begin with their 32-bit decompressed size, followed by the compressed file data. Metroid Prime uses zlib, which is easily recognized from zlib's 0x78DA header at the start of the compressed data. Each file is compressed as a single zlib stream. | ||
Metroid Prime 2 uses LZO1X-999, and gets slightly more complicated. Metroid Prime 2's compressed files are split up into multiple | Metroid Prime 2 uses segmented LZO1X-999, and gets slightly more complicated. Metroid Prime 2's compressed files are split up into multiple segments of compressed data, each of which is 0x4000 bytes large when decompressed (except for the last one) and should be compressed and decompressed separately. Each segment begins with a 16-bit size value before its actual compressed data begins. | ||
== File Order == | == File Order == | ||