CMake-only fork of https://dawn.googlesource.com/dawn with cleaned, vendored dependencies
9680c9f874
In every copy region, its bufferSize.height minus rowsPerImage can be texture format's blockInfo.height (it is 1 for uncompressed formats) at most, and it appears only if bytesPerRow is 256 and copySize on height is a full copy. This change will benefit 3D texture copy splitter via removing unwanted empty rows issues. Because empty rows in 3D copy splitter may lead to recompute/modify copy regions and there might be new copy regions added. The removed empty row situations are: 1) Partial copy on height: copySize.height < rowsPerImage * blockInfo.height 2) bytesPerRow is greater than 512. For example, if bytesPerRow is 512 and data in one row straddles two rows and there is no empty row at the first part. The second part will have a fake empty row if we don't recompute its alignedOffset. 3) There are two empty rows in a copy region. For example: if data in one row straddles two rows and there is an empty row in the first copy region. Then there will be two empty rows in the copy region of the second part if we don't recompute the alignedOffset. This change also fixes an issue found by Corentin that copy related argument "rowsPerImage" should not take effect when we are copying one single depth or array slice. Bug: dawn:547 Change-Id: I603291d559de1d05e420e5ed1f4cabf53de5a93f Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/52680 Reviewed-by: Corentin Wallez <cwallez@google.com> Reviewed-by: Austin Eng <enga@chromium.org> Commit-Queue: Yunchao He <yunchao.he@intel.com> |
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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.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.