Credits and licences

OpenCMR2 is released under the GNU General Public License v3.0. It contains no code, art, sound or data from the original game: everything is read from your own copy at run time.

Colin McRae Rally 2.0 is © 2000 The Codemasters Software Company Limited. OpenCMR2 is not affiliated with them.

Published and community sources

• Published Bink 1 format descriptions — the basis for the movie decoder; its codec tables are read at run time from the binkw32.dll on your own disc.
• Community modding notes for the game — allowed as hints; the exe is the authority and no code is copied.
• RFC 1951 / 1952 — the project's own inflate, which replaces the zlib 1.1.3 linked into CMR2.exe.

Reference implementations

• FFmpeg — every Bink movie is checked bit-exact against its decoder.
• Python's zlib — checks the project's inflate over the whole disc.

Tools

Ghidra, ghidra-cli, the Unicorn emulator (the differential harness that runs CMR2.exe's own code), wasi-sdk, VitePress; ANGLE and SwiftShader, shipped in the desktop bundles with gasm-run (their notices are in ANGLE-NOTICES.txt).

Runtime

gasm (MIT): gasm-run, the C SDK, and on this site @emdzej/gasm-host. OpenCMR2 is part of ENCORE, with its sibling reimplementations.

If we have missed someone whose work this project relied on, please open an issue — gaps in these credits are bugs.