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CMake-only fork of https://dawn.googlesource.com/dawn with cleaned, vendored dependencies
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Quyen Le 87f51237b4 Revert "Disable frontend cache when implicit device sync is on." 
This reverts commit 8cc6205bf7.

Reason for revert: Graphite actually reuses the bind groups between
draw calls using different pipelines and this change prevents it
from happening.

Original change's description:
> Disable frontend cache when implicit device sync is on.
>
> Normal behavior of ApiObjectBase's APIRelease() which only locks the
> device when last ref dropped is not thread safe if the object is cached
> as raw pointers by the device. Example of cached objects: bind group
> layout, pipeline, sampler, shader module.
>
> The following scenario could happen:
>  - thread A:
>     - shaderModuleA.APIRealease()
>     - shaderModuleA.refCount.Decrement() == true (ref count has reached zero)
>     - going to call shaderModuleA.LockAndDeleteThis().
>  - thread B:
>     - device.CreateShaderModule().
>     - lock()
>     - device.GetOrCreateShaderModule()
>     - shaderModuleA is in the cache, so return it.
>     - unlock()
>  - thread A:
>     - starting to call shaderModuleA.LockAndDeleteThis()
>     - lock()
>     - erase shaderModuleA from the cache.
>     - delete shaderModuleA.
>     - unlock()
>
> This CL disables caching when ImplicitDeviceSynchronization is turned on
> until we find a better solution.
>
> Bug: dawn:1769
> Change-Id: Ideb2a717ece0a40e18bd1c2bef00817262bd25da
> Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/127900
> Commit-Queue: Quyen Le <lehoangquyen@chromium.org>
> Reviewed-by: Austin Eng <enga@chromium.org>
> Kokoro: Kokoro <noreply+kokoro@google.com>

TBR=cwallez@chromium.org,enga@chromium.org,noreply+kokoro@google.com,dawn-scoped@luci-project-accounts.iam.gserviceaccount.com,lehoangquyen@chromium.org

Change-Id: Ib13bba8005402d06963865fae919388a91e718f0
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: dawn:1769
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/128440
Reviewed-by: Austin Eng <enga@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Quyen Le <lehoangquyen@chromium.org>
 		2023-04-21 03:10:12 +00:00
.vscode .vscode: Simplify build setup task 2023-03-04 00:49:51 +00:00
build_overrides remove use_system_libwayland 2023-01-25 19:32:15 +00:00
docs Revert "Disable frontend cache when implicit device sync is on." 2023-04-21 03:10:12 +00:00
generator Allow setting markupsafe directory in CMake. 2023-04-07 07:52:36 +00:00
include Move text/unicode into utils. 2023-04-20 10:06:25 +00:00
infra Kokoro: Fix windows builds 2023-02-05 10:52:57 +00:00
scripts Disable d3d11 backend 2023-04-20 13:19:59 +00:00
src Revert "Disable frontend cache when implicit device sync is on." 2023-04-21 03:10:12 +00:00
test tint/resolver: Fix use after move 2023-04-18 21:15:44 +00:00
third_party Fix Dawn Native Android build 2023-04-20 17:58:59 +00:00
tools tools/perfmon: Hook up external shader corpus 2023-04-19 23:26:01 +00:00
webgpu-cts Triage occlusion query failures in webgpu-cts expectations.txt 2023-04-19 01:10:51 +00:00
.clang-format
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.clang-tidy
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.gitattributes
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.gitignore Add .gitignore entry for /third_party/google_benchmark/src 2023-04-18 19:55:47 +00:00
.gn
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AUTHORS
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BUILD.gn
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CMakeLists.txt CMake: Add TINT_EXTERNAL_BENCHMARK_CORPUS_DIR 2023-04-19 15:03:19 +00:00
CMakeSettings.json
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CODE_OF_CONDUCT.md
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CONTRIBUTING.md
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CPPLINT.cfg
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DEPS Roll vulkan-deps from b8dfdc475340 to d92405551cda (9 revisions) 2023-04-21 02:39:49 +00:00
DIR_METADATA
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Doxyfile tint: add pretty printers for gdb and lldb 2022-10-27 20:17:45 +00:00
LICENSE
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OWNERS Set OWNERS to * on .txt files needed for CTS rolls 2023-02-13 10:17:04 +00:00
PRESUBMIT.py tools: Move idlgen and run-cts to from dawn/node to tools/ 2022-12-12 23:06:43 +00:00
README.chromium Fix addition of README.md's content to README.chromium 2022-08-09 14:09:00 +00:00
README.md Fix addition of README.md's content to README.chromium 2022-08-09 14:09:00 +00:00
codereview.settings
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dawn.json Add Device::GetSupportedSurfaceUsage() method. 2023-04-20 20:42:05 +00:00
dawn_wire.json Add Device::GetSupportedSurfaceUsage() method. 2023-04-20 20:42:05 +00:00
go.mod tools: Update go.chromium.org/luci dep 2023-03-14 14:42:18 +00:00
go.sum tools: Update go.chromium.org/luci dep 2023-03-14 14:42:18 +00:00
go_presubmit_support.py Reland "Add expectations.txt validation to presubmit" 2022-12-08 21:57:55 +00:00
tint_overrides_with_defaults.gni Reland "Add writer to emit the AST." 2023-03-07 18:28:38 +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, 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)

Status

(TODO)

License

Apache 2.0 Public License, please see LICENSE.

Disclaimer

This is not an officially supported Google product.