Reland "CopyTextureForBrowser: Support color format conversion"

This is a reland of f84daa070f05eb80672a9a23e23aed205fe72a5e

Eliminate static initializer(disallowed in Chromium) by replacing
shader string living in anonymous namespace from type "std::string"
to char array.

Original change's description:
> CopyTextureForBrowser: Support color format conversion
>
> This CL enables blit from RGBA8Unorm soruce texture to dst texture that
> |CopyImageBitmapToTexture| supported dst format.
>
> BUG=dawn:465
>
> Change-Id: I99846cf8dc37bc89e0c168a3d86193bb3a0c0ebb
> Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/44020
> Commit-Queue: Shaobo Yan <shaobo.yan@intel.com>
> Reviewed-by: Corentin Wallez <cwallez@chromium.org>
> Reviewed-by: Austin Eng <enga@chromium.org>

Bug: dawn:465
Change-Id: Ic3a156f5a20b217fd2aa5f86b01bad8ce77dc41c
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/45443
Commit-Queue: Shaobo Yan <shaobo.yan@intel.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
5 files changed
tree: f5b040bf8139b768119eecad29a0bcd40d77a980
  1. build_overrides/
  2. docs/
  3. examples/
  4. generator/
  5. infra/
  6. scripts/
  7. src/
  8. third_party/
  9. tools/
  10. .clang-format
  11. .gitattributes
  12. .gitignore
  13. .gn
  14. AUTHORS
  15. BUILD.gn
  16. CMakeLists.txt
  17. codereview.settings
  18. CONTRIBUTING.md
  19. dawn.json
  20. dawn_wire.json
  21. DEPS
  22. DIR_METADATA
  23. LICENSE
  24. OWNERS
  25. PRESUBMIT.py
  26. README.chromium
  27. README.md
README.md

Dawn, a WebGPU implementation

Dawn is an open-source and cross-platform implementation of the work-in-progress 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 on Windows 10
    • Metal on macOS and iOS
    • Vulkan on Windows, Linux, ChromeOS, Android and Fuchsia
    • OpenGL as best effort where available
  • A client-server implementation of WebGPU for applications that are in a sandbox without access to native drivers

Helpful links:

Documentation table of content

Developer documentation:

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

Status

(TODO)

License

Apache 2.0 Public License, please see LICENSE.

Disclaimer

This is not an officially supported Google product.