mirror of
https://github.com/encounter/dawn-cmake.git
synced 2025-05-31 11:41:35 +00:00
829d165d7c
This patch supports [[num_workgroups]] on D3D12 for DispatchIndirect by appending the values of [[num_workgroups]] at the end of the scratch buffer for indirect dispatch validation and setting them as the root constants in the command signature. With this patch, for every DispatchIndirect call: - On D3D12: 1. Validation enabled, [[num_workgroups]] is used The dispatch indirect buffer needs to be validated, duplicated and be written into a scratch buffer (size: 6 * uint32_t). 2. Validation enabled, [[num_workgroups]] isn't used The dispatch indirect buffer needs to be validated and be written into a scratch buffer (size: 3 * uint32_t). 3. Validation disabled, [[num_workgroups]] is used The dispatch indirect buffer needs to be duplicated and be written into a scratch buffer (size: 6 * uint32_t). 4. Validation disabled, [[num_workgroups]] isn't used Neither transformations or scratch buffers are needed for the dispatch call. - On the other backends: 1. Validation enabled, The dispatch indirect buffer needs to be validated and be written into a scratch buffer (size: 3 * uint32_t). 2. Validation disabled, Neither transformations or scratch buffers are needed for the dispatch call. BUG=dawn:839 TEST=dawn_end2end_tests Change-Id: I4105f1b2e3c12f6df6e487ed535a627fbb342344 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/68843 Reviewed-by: Austin Eng <enga@chromium.org> Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
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:
- Dawn overview
- Building Dawn
- Contributing to Dawn
- Testing Dawn
- Debugging Dawn
- Dawn's infrastructure
- Dawn errors
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.