Third-party notices

From THIRD_PARTY_NOTICES.md in ReCarbon's repository.

Third-party notices

ReCarbon is free software under the GNU General Public License, version 3 or (at your option) any later version (GPL-3.0-or-later; COPYING, NOTICE). It is derived from SpeedBreaker, Copyright (C) 2026 project(u) and SpeedBreaker contributors (GPL-3.0-or-later). It is built from software by others under their own licenses, listed here. The license texts are in LICENSES/.

ReCarbon publishes no downloads yet. Its one deliverable is the Mac app (ReCarbon.app, Apple silicon, macOS 27 or later), built by scripts/macos/make_app.py. The app bundles SDL3, the Vulkan loader, glslang, SPIRV-Tools and MoltenVK, and carries these notices, the license texts and each bundled library’s license files in Contents/Resources/licenses/. A ReCarbon release must carry them too.

Compiled into ReCarbon (as into SpeedBreaker)

Project	What it does here	License	Text
Unleashed Recompiled: hedge-dev and contributors	Parts of the kernel, XAM, memory, heap and threading code are adapted from it (each such file says so at the top).	GPL-3.0-or-later	LICENSES/GPL-3.0.txt
Xenia: Copyright Ben Vanik and Xenia contributors	The Xenos GPU register, microcode and format headers are ported from it (runtime/gpu/xenos/), as is the NT status table (runtime/kernel/imports_error.cpp). Its kernel, XMA and GPU behaviour is the reference throughout.	BSD-3-Clause	LICENSES/Xenia-BSD-3-Clause.txt
freedreno: Copyright (c) 2012 Rob Clark	Shader instruction formats, through Xenia’s ucode.h.	MIT	LICENSES/freedreno-MIT.txt
XenonRecomp (XenonUtils): Copyright (c) 2025 hedge-dev and contributors	Recompiles the game’s PowerPC code into C++ (with SpeedBreaker’s patches, patches/xenonrecomp/); its XEX loader is compiled into the runtime.	MIT	LICENSES/XenonRecomp-MIT.md
libmspack: (C) 2003-2023 Stuart Caie	LZX decompression of the XEX (lzxd.c, through XenonRecomp).	LGPL-2.1	LICENSES/libmspack-LGPL-2.1.txt
tiny-AES-c	XEX decryption (through XenonRecomp).	Unlicense	LICENSES/tiny-AES-c-Unlicense.txt
TinySHA1: Copyright (c) 2012-22 Saurav Mohapatra	SHA-1, in XenonRecomp’s XEX patcher.	ISC-style	LICENSES/TinySHA1-ISC.txt
toml++: Copyright (c) Mark Gillard	Reads and writes settings.toml (through XenonRecomp).	MIT	LICENSES/tomlplusplus-MIT.txt
SIMDe: Copyright (c) 2017 Evan Nemerson and contributors	Vector instructions in the recompiled code (through XenonRecomp).	MIT	LICENSES/SIMDe-MIT.txt
Dear ImGui 1.92.9: Copyright (c) 2014-2026 Omar Cornut	The installer, the settings menu and the overlays (runtime/thirdparty/imgui).	MIT	LICENSES/DearImGui-MIT.txt
stb_truetype, stb_rect_pack, stb_textedit: Copyright (c) 2017 Sean Barrett	Font rasterising and text editing, inside Dear ImGui.	MIT (or public domain)	LICENSES/stb-MIT.txt
Roboto (Medium): Copyright 2011 Google Inc.	The menus’ font, embedded in the program. Roboto is a trademark of Google.	Apache-2.0	LICENSES/Apache-2.0.txt
o1heap: Copyright (c) 2020 Pavel Kirienko	The game’s heap allocator (runtime/thirdparty/o1heap).	MIT	LICENSES/o1heap-MIT.txt
QR Code generator library (C) 1.8.0: Copyright (c) 2022 Project Nayuki	The QR code of the download page in Settings > Advanced > Check for Updates (runtime/thirdparty/qrcodegen).	MIT	LICENSES/qrcodegen-MIT.txt
AMD FidelityFX Super Resolution 1 (FSR 1, ffx_a.h and ffx_fsr1.h at commit a21ffb8): Copyright (c) 2021 Advanced Micro Devices, Inc.	Settings > Graphics > Upscaling’s FSR 1: its EASU and RCAS shader code, compiled into the game’s shaders, and its constant setup (runtime/thirdparty/fsr1, unmodified).	MIT	LICENSES/FidelityFX-FSR-MIT.txt
FFmpeg 7.1.1: the FFmpeg developers	The XMA1, XMA2 and WMA Pro audio decoders, linked statically. Built without any GPL parts, with one SpeedBreaker change: patches/ffmpeg/0001-xma-single-stream-no-holdback.patch (no sample hold-back for single-stream XMA, which the game’s audio mixer depends on). Source: https://ffmpeg.org/releases/ffmpeg-7.1.1.tar.xz plus that patch; scripts/build_ffmpeg_xma.sh builds it.	LGPL-2.1-or-later	LICENSES/FFmpeg-LGPL-2.1.txt

Libraries in the Mac app

Project	Where	License	Text
SDL3: Copyright (C) 1997-2026 Sam Lantinga	The window, input, audio and the app’s lifecycle. In the Mac app. It includes HIDAPI (controllers; Copyright (c) 2010 Alan Ott, Signal 11 Software; under its BSD-style license, one of the three it offers) and yuv2rgb (Copyright (c) 2016 Adrien Descamps).	zlib; HIDAPI and yuv2rgb: BSD-3-Clause	LICENSES/SDL3-Zlib.txt; LICENSES/HIDAPI-BSD-3-Clause.txt; LICENSES/yuv2rgb-BSD-3-Clause.txt
glslang: The Khronos Group Inc. and others	Compiles the game’s shaders while it runs. In the Mac app.	BSD-3-Clause and others (its own list)	LICENSES/glslang.txt
SPIRV-Tools: The Khronos Group Inc. and others	Used by glslang (with its optimizer). In the Mac app.	Apache-2.0	LICENSES/Apache-2.0.txt
MoltenVK (with SPIRV-Cross): Copyright (c) 2015-2026 The Brenwill Workshop Ltd., The Khronos Group Inc.	Vulkan on Apple’s Metal. In the Mac app. It includes cereal (Copyright (c) 2013-2022 Randolph Voorhies, Shane Grant; BSD-3-Clause), which saves its shader conversions, and SPIRV-Tools (below).	Apache-2.0; cereal: BSD-3-Clause	LICENSES/Apache-2.0.txt; LICENSES/cereal-BSD-3-Clause.txt
Vulkan Loader: The Khronos Group Inc., Valve Corporation, LunarG, Inc.	In the Mac app. It includes cJSON (Copyright (c) 2009-2017 Dave Gamble and cJSON contributors).	Apache-2.0; cJSON: MIT	LICENSES/Apache-2.0.txt; LICENSES/cJSON-MIT.txt
Vulkan-Headers and SPIRV-Headers: The Khronos Group Inc.	Headers the game, the Vulkan Loader, glslang and SPIRV-Tools are built with.	Apache-2.0 or MIT (Vulkan-Headers); MIT (SPIRV-Headers)	LICENSES/Apache-2.0.txt or LICENSES/Vulkan-Headers-MIT.txt; LICENSES/SPIRV-Headers.txt
GNU C Library (glibc) and GCC’s runtime libraries (libstdc++, libgcc_s)	Not shipped by ReCarbon. SpeedBreaker’s SteamOS downloads carry them; ReCarbon builds only for macOS, where the app uses the system’s own C and C++ libraries. Listed for completeness.	glibc: LGPL-2.1-or-later. GCC’s runtime: GPL-3.0 with the GCC Runtime Library Exception	in SpeedBreaker’s SteamOS downloads

A release build of the Mac app takes its libraries from scripts/macos/build_deps.sh: SDL3, the Vulkan loader, glslang, SPIRV-Tools and FFmpeg, built from their projects’ own source releases (checked by SHA-256) for macOS 27. MoltenVK is Homebrew’s 1.4.2, pinned by its SHA-256. The app’s Contents/Resources/licenses/README.txt names each library’s project, version, source and SHA-256 (or, for MoltenVK, its Homebrew bottle), next to its license files. A development build bundles Homebrew’s libraries instead, and its README says so.

Source code of the LGPL and GPL parts

FFmpeg (with patches/ffmpeg/) and libmspack (LGPL-2.1) are compiled into the ReCarbon executable. ReCarbon distributes no binaries yet. Whoever distributes a build must also offer the complete source of those parts at the versions used: FFmpeg 7.1.1 (https://ffmpeg.org/releases/ffmpeg-7.1.1.tar.xz, SHA-256 in scripts/setup_tools.sh) with the patch and scripts/build_ffmpeg_xma.sh, and libmspack as XenonRecomp’s pinned submodule has it. SpeedBreaker does this with a third-party-source archive per release.

Tools used to build it, not shipped

• XenonRecomp (above): hedge-dev and contributors, MIT. (XenosRecomp, hedge-dev, MIT, which SpeedBreaker lists, is not used by ReCarbon: its shaders are translated while the game runs.)
• extract-xiso: for developers unpacking their own disc image.
• Instruction tests (tests/): SpeedBreaker’s generated tests and ReCarbon’s hand-computed ones.

Thanks

project(u) and the SpeedBreaker contributors, whose port ReCarbon builds on. The hedge-dev team, for XenonRecomp and the approach of Unleashed Recompiled that SpeedBreaker follows, and the Xenia project, for years of Xbox 360 research.