dawn-python

ctypeslib based python bindings to the Dawn WebGPU engine with a focus on the compute pipeline. Besides the autogenerated bindings, a small utils interface (similar to wgpu-py) is provided to make it easier to run compute.

Chromium version used in pydawn: 133.0.6940.0

How to use

1. Install from PyPI

pip install dawn-python

2. Import utils, and webgpu

from pydawn import utils, webgpu

if __name__ == "__main__":
    # Creating an adapter
    adapter = utils.request_adapter_sync(power_preference=webgpu.WGPUPowerPreference_HighPerformance)

    # Creating a device with a list of required features
    dev = utils.request_device_sync(adapter, [webgpu.WGPUFeatureName_ShaderF16, webgpu.WGPUFeatureName_TimestampQuery])

For more details see examples/query_set.py

Generating bindings

1. Build dawn or use the pre-built lib in the repo
2. pip install ctypeslib2
3. clang2py -l libwebgpu_dawn.dylib webgpu.h --nm nm_patch.py -o webgpu.py

Examples

python3 examples/simple_compute.py

Supported platforms

• MacOS (arch: x86_64, arm64, optimal backend: Metal)
• Ubuntu (arch: x86_64, optimal backend: Vulkan)
• Windows (arch: x86_64, optimal backend: DirectX)

License

BSD 3-Clause, please see LICENSE