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75f554d973
This didn't make sense since these members can be specified to have no
data by setting the length to 0.
- Prevent uses of this patten by adding an assert in WireCmd.cpp's
generator.
- Fix SetBindGroup dynamicOffset to not be optional but default to
nullptr instead.
This issues would cause a read of uninitialized pointers becaus the
generator code looked like this:
SetBindGroupCmd cmd;
cmd.dynamicOffsetCount = record.dynamicOffsetCount; // 1
bool has_dynamicOffset = record.has_dynamicOffsetl // false
if (has_dynamicOffset) {
cmd.dynamicOffsets = ...;
}
// Oh no! dynamicOffsets contains garbage even if dynamicOffsetCount
// is set to 1. dawn_native will happily read it.
Bug: chromium:1220036
Change-Id: I5c468b639f671cef3be2fa64667a0bf114fc902b
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/54643
Auto-Submit: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Stephen White <senorblanco@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Stephen White <senorblanco@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.