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CMake-only fork of https://dawn.googlesource.com/dawn with cleaned, vendored dependencies
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Corentin Wallez 48183b8f58 Vulkan: honor bufferImageGranularity the simplest way. 
Vulkan requires that linear and opaque resources be placed in different
"pages" of bufferImageGranularity size, as some hardware uses the page
table to contain some compression bits or other stuff. Make Dawn honor
this limit by aligning all allocations to bufferImageGranularity. This
is pretty bad and should be improved later.

Also does some cleanups:
 - Add kMappableBufferUsage to represent all mappable usages.
 - Remove the proxy function for resource management from
   vulkan::Device and call ResourceMemoryAllocator directly.
 - Use an enum to make the difference between mappable, linear and
   opaque resources.

This issue was found while doing a change of the memory type selection
in Vulkan, that started failing some unrelated tests on Nvidia. Without
knowing the details of the HW or the driver it is really hard to write
tests, except by copy-pasting a failing test. This is why there is no
test added in this CL, and instead will rely on tests not failing with
the follow-up CL.

Bug: dawn:659

Change-Id: Ib7c1f3f1949457e04ca8e23d212dc60af7046213
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/52920
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
 		2021-06-22 13:41:35 +00:00
.vscode .vscode/tasks.json: Implement tasks for Windows 2021-03-24 13:08:41 +00:00
build_overrides Use .gn to set overrides for VulkanMemoryAllocator 2021-04-06 16:54:19 +00:00
docs docs/contributing.md: Explain how to start a review. 2021-06-01 16:08:22 +00:00
examples Omit types in most WGSL `var` statements. 2021-06-17 21:36:11 +00:00
generator WireCmd: disallow optional members with length="otherMember" 2021-06-17 16:04:29 +00:00
infra/config Revert "Enable Tint running Dawn try jobs on its CQ" 2021-06-14 17:32:52 +00:00
scripts Disable OpenGLES in uwp compilation. 2021-05-31 08:46:21 +00:00
src Vulkan: honor bufferImageGranularity the simplest way. 2021-06-22 13:41:35 +00:00
third_party Remove the dependency on shaderc and glslang. 2021-03-24 16:02:13 +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 Remove the dependency on shaderc and glslang. 2021-03-24 16:02:13 +00:00
.gn Use .gn to set overrides for VulkanMemoryAllocator 2021-04-06 16:54:19 +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 Remove the dependency on shaderc and glslang. 2021-03-24 16:02:13 +00:00
DEPS Roll Tint from b96ed7bda4 to 3c9086d6a5 (17 revisions) 2021-06-22 12:45:15 +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 Move metadata in OWNERS files to DIR_METADATA files 2021-02-04 01:26:43 +00:00
PRESUBMIT.py Use canned CheckPatchFormatted instead of our own linting 2020-07-15 20:47:57 +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 Add docs/contributing.md 2021-04-21 18:05:01 +00:00
codereview.settings codereview.setings: default to not squashing on git cl upload 2021-03-10 18:35:58 +00:00
dawn.json CopyTextureForBrowser(): Support Alpha Ops 2021-06-21 10:05:37 +00:00
dawn_wire.json ComputePipelineDescriptor.computeStage->compute 2021-06-09 18:07:32 +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 the webgpu.h docs)

Status

(TODO)

License

Apache 2.0 Public License, please see LICENSE.

Disclaimer

This is not an officially supported Google product.