[](https://crates.io/crates/opencl-sys)
[](https://docs.rs/opencl-sys/)
[](https://www.khronos.org/registry/OpenCL/)
[](https://opensource.org/licenses/Apache-2.0)
[](https://github.com/kenba/opencl-sys-rs/actions)
OpenCL C FFI bindings for the Rust programming language.
# Description
Rust [FFI](https://doc.rust-lang.org/nomicon/ffi.html) Bindings to the Khronos
[OpenCL C language headers](https://github.com/KhronosGroup/OpenCL-Headers),
see the [OpenCL Resource Guide](https://www.khronos.org/opencl/resources).
The API for OpenCL versions and extensions are controlled by Rust features such as "CL_VERSION_2_0" and "cl_khr_gl_sharing". To enable an OpenCL version, the feature for that version and **all** previous OpenCL versions must be enabled, e.g. for "CL_VERSION_2_0"; "CL_VERSION_1_1" and "CL_VERSION_1_2" must also be enabled.
The default features are "CL_VERSION_1_1" and "CL_VERSION_1_2".
Rust deprecation warnings are given for OpenCL API functions that are deprecated by an enabled OpenCL version e.g., `clCreateCommandQueue` is deprecated whenever "CL_VERSION_2_0" is enabled.
The Rust FFI files attempt to match the format and layout of the original
C source files instead of [bindgen](https://rust-lang.github.io/rust-bindgen/)
output files to ease maintenance.
## Contribution
If you want to contribute through code or documentation, the [Contributing](CONTRIBUTING.md)
guide is the best place to start.
If you have any questions, please feel free to ask.
Just please abide by our [Code of Conduct](CODE_OF_CONDUCT.md).
## License
Licensed under the Apache License, Version 2.0, as per Khronos Group OpenCL.
You may obtain a copy of the License at: <http://www.apache.org/licenses/LICENSE-2.0>
Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in the work by you, as defined in the Apache-2.0 license,
shall be licensed as above, without any additional terms or conditions.
OpenCL and the OpenCL logo are trademarks of Apple Inc. used under license by Khronos.