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This is a reland of a57c1db878e2f8a7eb352c8f253db5488cdca6f6 in current Dawn implementation RenderPipelineGL and ComputePipelineGL will be destroyed before calling their initialize() function when we can find a proper pipeline object in the front-end cache, so mProgram may not be assigned to a valid GL program ID when the destructor of PipelineGL is called. In this CL we always initialize mProgram to 0 in the constructor of PipelineGL so that it won't be a garbage value in the destructor of PipelineGL (0 is safe for glDeleteProgram() according to OpenGL SPEC). Original change's description: > OpenGL: delete shaders and pipelines when they are not used any longer > > Previously on OpenGL backend the GL pipelines and shaders are never > deleted. With this patch the GL pipelines and shaders will be able to > be destroyed correctly after they are not needed any longer. > > BUG=dawn:529 > > Change-Id: I4f7f22c7b536825363fe1ecc0f5ffd1bb86fd774 > Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/65140 > Reviewed-by: Corentin Wallez <cwallez@chromium.org> > Reviewed-by: Stephen White <senorblanco@chromium.org> > Commit-Queue: Jiawei Shao <jiawei.shao@intel.com> Bug: dawn:529 Change-Id: Ie04ab069b9d26658f2b0d1b070d86bb650f3c878 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/65486 Commit-Queue: Corentin Wallez <cwallez@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org> Reviewed-by: Austin Eng <enga@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:
- 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.