encounter
/
dawn-cmake
mirror of https://github.com/encounter/dawn-cmake.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
CMake-only fork of https://dawn.googlesource.com/dawn with cleaned, vendored dependencies
2,022 Commits 2 Branches 0 Tags 145 MiB
C++ 59.9%
HLSL 18.2%
GLSL 17.3%
Go 2.1%
Objective-C++ 0.8%
Other 1.6%
Go to file
Corentin Wallez fefb452f29 Reland: Vulkan: Enforce fixed subgroup size for compute shaders. 
Reland after a refactor of how the extension handling work in the Vulkan
backend.

The original author is David Turner <david.turner.dev@gmail.com>.

This CL ensures that, on architectures with a varying subgroup size,
compute shaders are always compiled with a fixed subgroup size to
avoid consistency issues when one shader writes data in a subgroup-size
dependent layout to GPU memory, to be read by another shader in a
future dispatch.

At the moment, only Intel ICDs are known to implement this [1],
and the code uses a heuristics to chose the size of 16, which seems to
be the sweet spot according to Intel engineers.

+ Update the PNextChainBuilder class to deal with the fact that
  VkComputePipelineCreateInfo::pNext is defined as a const void*,
  which created compiler errors in the previous implementation.

[1] https://bugs.freedesktop.org/show_bug.cgi?id=108875

Bug: dawn:464
Change-Id: I035ee06084fcc964742f0bff4c54cff257c742ae
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/23202
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Stephen White <senorblanco@chromium.org>
 		2020-06-16 09:17:48 +00:00
build_overrides Add Tint to BUILD.gn 2020-05-07 21:15:55 +00:00
docs Deprecate Buffer::SetSubData in favor of Queue::WriteBuffer 2020-06-02 09:24:39 +00:00
examples Deprecate TextureCopyView::arrayLayer -> origin.z 2020-06-16 03:05:17 +00:00
generator Remove deprecated "Binding" types and members 2020-05-13 17:05:55 +00:00
infra/config infra: Migrate builders to Goma RBE 2020-06-09 12:34:02 +00:00
scripts Set a default value for dawn_glm_dir like other GN build overrides 2020-05-27 01:33:33 +00:00
src Reland: Vulkan: Enforce fixed subgroup size for compute shaders. 2020-06-16 09:17:48 +00:00
third_party Fix and enable -Wgnu-anonymous-struct 2020-04-30 16:01:08 +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 Tint to BUILD.gn 2020-05-07 21:15:55 +00:00
.gn Re-enable -Wunguarded-availability in Dawn standalone builds 2019-12-11 16:54:51 +00:00
AUTHORS Rename NXT -> Dawn in the comments 2018-07-18 22:54:06 +02:00
BUILD.gn Remove temporary GN proxy groups. 2020-04-14 17:36:44 +00:00
CMakeLists.txt Fix the CMake build because of CMP0077 2020-04-10 17:04:31 +00:00
CONTRIBUTING.md docs: write an overview of Dawn and split README.md 2019-12-05 11:01:41 +00:00
DEPS Rolling 3 dependencies 2020-06-15 19:00:52 +00:00
LICENSE Initial commit of all the NXT integration. 2017-04-20 14:38:20 -04:00
OWNERS Add enga@chromium.org as OWNER 2020-04-02 18:14:37 +00:00
PRESUBMIT.py PRESUBMIT.py: Add formatting checks. 2018-09-11 08:06:36 -04:00
README.chromium Add component to OWNERS and fixup repo URL in README.chromium 2018-09-25 20:53:37 +00:00
README.md Add Matrix chatrooms to README.md 2020-04-24 12:38:13 +00:00
codereview.settings Initial CQ configuration 2018-08-23 08:33:35 -04:00
dawn.json Handle OOM buffer allocations better 2020-06-15 23:42:13 +00:00
dawn_wire.json Deprecate Buffer::SetSubData in favor of Queue::WriteBuffer 2020-06-02 09:24:39 +00:00

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 webgpu.h docs)

Status

(TODO)

License

Apache 2.0 Public License, please see LICENSE.

Disclaimer

This is not an officially supported Google product.