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CMake-only fork of https://dawn.googlesource.com/dawn with cleaned, vendored dependencies
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Austin Eng 09c308cfcf Improve ScopedEnvironmentVar to distinguish between null and empty 
Found while investigating Swiftshader support. Some Vulkan loaders
fail to create an instance if VK_ICD_FILENAMES is empty string
rather than entirely absent. It was set to empty string because
Dawn did not distinguish between nonexistent environment variables
and the empty string. This CL adds distinguishing between the two,
including tests for the behavior.

Bug: chromium:1266550
Change-Id: I1680a281f62e6b340009e01da65db9d485e2975e
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/69520
Auto-Submit: Austin Eng <enga@chromium.org>
Reviewed-by: Loko Kung <lokokung@google.com>
Commit-Queue: Austin Eng <enga@chromium.org>
 		2021-11-16 23:37:15 +00:00
.vscode .vscode: Fix quotations in windows 'gn gen' task 2021-07-21 14:07:49 +00:00
build_overrides Added Abseil as a third-party dependency (Take 2) 2021-09-23 20:36:03 +00:00
docs Make validation error formatting more consistent 2021-11-03 01:31:19 +00:00
examples Improve ScopedEnvironmentVar to distinguish between null and empty 2021-11-16 23:37:15 +00:00
generator Make CompilationInfo extensible. 2021-11-16 09:25:35 +00:00
infra Declare "role/configs.validator" binding. 2021-11-13 17:53:14 +00:00
scripts Reland "Add deps to enable performing the cmake build of dawn_node on CQ" 2021-10-15 14:28:32 +00:00
src Improve ScopedEnvironmentVar to distinguish between null and empty 2021-11-16 23:37:15 +00:00
third_party CMake: Disable Tint's GLSL writer 2021-10-15 19:10:23 +00:00
tools/memory/asan Fix is_asan build (at least on Mac) 2020-04-06 22:27:02 +00:00
.clang-format Add .clang-format 2017-11-28 16:18:39 -05:00
.gitattributes Add .gitattributes to normalize EOL 2019-07-15 12:23:18 +00:00
.gitignore Add /third_party/gpuweb to .gitignore 2021-10-21 19:47:14 +00:00
.gn build: Override angle_has_rapidjson to false 2021-08-19 22:14:27 +00:00
AUTHORS Rename NXT -> Dawn in the comments 2018-07-18 22:54:06 +02:00
BUILD.gn GN: add a default build target 2021-02-02 17:03:30 +00:00
CMakeLists.txt Reland "Add deps to enable performing the cmake build of dawn_node on CQ" 2021-10-15 14:28:32 +00:00
DEPS Roll ANGLE from 5c6998e4fc44 to 376d8136541d (1 revision) 2021-11-16 12:16:46 +00:00
DIR_METADATA Move metadata in OWNERS files to DIR_METADATA files 2021-02-04 01:26:43 +00:00
LICENSE Initial commit of all the NXT integration. 2017-04-20 14:38:20 -04:00
OWNERS Add more / finer-grained OWNERS 2021-11-02 09:30:52 +00:00
PRESUBMIT.py Force Python 3 in presubmit 2021-07-20 17:57:20 +00:00
README.chromium Add component to OWNERS and fixup repo URL in README.chromium 2018-09-25 20:53:37 +00:00
README.md Improve validation errors, Part 1 2021-09-23 21:26:33 +00:00
codereview.settings codereview.setings: default to not squashing on git cl upload 2021-03-10 18:35:58 +00:00
dawn.json Make CompilationInfo extensible. 2021-11-16 09:25:35 +00:00
dawn_wire.json Add 'reason' argument to device lost callback 2021-09-28 11:52:17 +00:00

README.md

Dawn's logo: a sun rising behind a stylized mountain inspired by the WebGPU logo. The text "Dawn" is written below it.

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.