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This reverts commit 48183b8f58a293d3eaf5f9eec72519bf60e5df85. Reason for revert: Part of Dawn->Chromium breakage BUG=dawn:950 Original change's description: > 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> TBR=cwallez@chromium.org,senorblanco@chromium.org,enga@chromium.org,dawn-scoped@luci-project-accounts.iam.gserviceaccount.com Change-Id: I133f6a44227819bf262ad2b6e8e9d0d7bfaaefaa No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: dawn:659 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/55642 Reviewed-by: Ryan Harrison <rharrison@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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.hversion that Dawn implements. - A C++ wrapper for the
webgpu.h.
- The
- 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:
- Dawn's bug tracker if you find issues with Dawn.
- Dawn's mailing list for other discussions related to Dawn.
- Dawn's source code
- Dawn's Matrix chatroom for live discussion around contributing or using Dawn.
- WebGPU's Matrix chatroom
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.