29 lines
1.7 KiB
Markdown
29 lines
1.7 KiB
Markdown
# librashader
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A preprocessor, compiler, and runtime for RetroArch 'slang' shaders, rewritten in pure Rust.
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Heavily WIP.
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## License
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**There is not yet a functioning implementation of librashader but this section outlines its licensing goals in contrast to
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RetroArch.**
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While librashader is an independent reimplementation of the RetroArch shader pipeline, referencing the RetroArch source
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code was indispensable to its creation. As it is therefore considered a derivative work, the core parts of librashader
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such as the preprocessor, the preset parser, the reflection library, and the runtimes, are all licensed under GPLv3.
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The librashader C API, i.e. its headers and definitions, *not its implementation in `librashader_capi`*,
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are unique to librashader and are more permissively licensed, and may allow you to use librashader in your permissively
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licensed or proprietary project.
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While the code for `librashader_capi` (`librashader.so` and `rashader.dll`) is still under GPLv3,
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you may use librashader in a non-GPL work by linking against the MIT licensed `librashader_ld`,
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which implements the librashader C API, and thunks its calls to any `librashader.so` or `rashader.dll`
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library found in the load path, *provided that `librashader.so` or `rashader.dll` are distributed under the restrictions
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of GPLv3*.
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Note that if your project is not compatible with GPLv3, you **can not distribute `librashader.so` or `rashader.dll`**
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alongside your project, **only `librashader-ld.so` or `rashader-ld.dll`**, which will do nothing without a librashader
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implementation in the load path. The end user must obtain the implementation of librashader themselves. |