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'Chameleon Compression' Support #102

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AlexField442 opened this issue Nov 16, 2021 · 1 comment
Open

'Chameleon Compression' Support #102

AlexField442 opened this issue Nov 16, 2021 · 1 comment

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@AlexField442
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Currently working on adding SonLVL support to the entirety of Sonic 2 Nick Arcade; Green Hill Zone's chunks use what I call 'Chameleon Compression' (due to it also appearing in Kid Chameleon, also by STI), which currently aren't supported by SonLVL.

More about it here (apparently it's LZSS-based).
@geoo89
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geoo89 commented Nov 16, 2021 •
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Just for reference, C++ implementations: https://github.com/sonicretro/kid-chameleon-disasm/tree/master/tools/src
The decompressor is basically Saxman's code, and both the compressor/decompresor could definitely do with some cleaning up...
(A cleaned up version could maybe also go into https://github.com/flamewing/mdcomp and/or KENSSharp?)

@flamewing flamewing mentioned this issue Nov 17, 2021
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@geoo89 @AlexField442