Enable the OpenGLES backend on Android.

Please include the following text as part of the Dawn->Chromium roll, as well as the footer "Binary-Size: See commit description":

This CL enables the Dawn GLES backend in Chrome on Android. This increases the APK size by ~143K. This functionality is necessary to increase the reach of WebGPU in Chrome to include Android devices without Vulkan support. It will also allow the use of Dawn's GLES backend for Skia/Graphite on Android, allowing a future binary size reduction when the ANGLE native backends are removed from the GPU process.

Previous work reduced the binary size increase from 182K -> 153K:
https://dawn-review.googlesource.com/c/dawn/+/166401

And from 153K -> 143K:
https://dawn-review.googlesource.com/c/dawn/+/172260

Bug: dawn:1545
Change-Id: I17d4984bdc0526a243c18de5ee587e0cd35f3c95
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/174860
Commit-Queue: Stephen White <senorblanco@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
5 files changed
tree: 4f498d86bb35751f5db738ca104300044c23450c
  1. .github/
  2. .vscode/
  3. build_overrides/
  4. docs/
  5. generator/
  6. include/
  7. infra/
  8. scripts/
  9. src/
  10. test/
  11. third_party/
  12. tools/
  13. webgpu-cts/
  14. .bazelrc
  15. .clang-format
  16. .clang-tidy
  17. .gitattributes
  18. .gitignore
  19. .gitmodules
  20. .gn
  21. AUTHORS
  22. BUILD.bazel
  23. BUILD.gn
  24. CMakeLists.txt
  25. CMakeSettings.json
  26. CODE_OF_CONDUCT.md
  27. codereview.settings
  28. CONTRIBUTING.md
  29. CPPLINT.cfg
  30. DEPS
  31. DIR_METADATA
  32. go.mod
  33. go.sum
  34. go_presubmit_support.py
  35. LICENSE
  36. OWNERS
  37. PRESUBMIT.py
  38. README.chromium
  39. README.md
  40. WORKSPACE.bazel
README.md

Build Status Matrix Space

Dawn, a WebGPU implementation

Dawn is an open-source and cross-platform implementation of the WebGPU standard. More precisely it implements webgpu.h that is a one-to-one mapping with the WebGPU IDL. Dawn is meant to be integrated as part of a larger system and is the underlying implementation of WebGPU in Chromium.

Dawn provides several WebGPU building blocks:

  • WebGPU C/C++ headers that applications and other building blocks use.
    • The webgpu.h version that Dawn implements.
    • A C++ wrapper for the webgpu.h.
  • A “native” implementation of WebGPU using platforms' GPU APIs: D3D12, Metal, Vulkan and OpenGL. See per API support for more details.
  • A client-server implementation of WebGPU for applications that are in a sandbox without access to native drivers
  • Tint is a compiler for the WebGPU Shader Language (WGSL) that can be used in standalone to convert shaders from and to WGSL.

Helpful links:

Documentation table of content

Developer documentation:

User documentation: (TODO, figure out what overlaps with the webgpu.h docs)

License

BSD 3-Clause License, please see LICENSE.

Disclaimer

This is not an officially supported Google product.