| commit | 15fec68a4f73051c8e25da68dc3c8eefeec72941 | [log] [tgz] |
|---|---|---|
| author | Yunchao He <yunchao.he@intel.com> | Thu Dec 09 21:32:28 2021 +0000 |
| committer | Dawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com> | Thu Dec 09 21:32:28 2021 +0000 |
| tree | 2f05280fbe15b225da91577e349faed7541b5539 | |
| parent | 1b1b658d365591b6a8d4bfb0c3524832c89afc99 [diff] |
Implement readonly depth/stencil attachment on Vulkan
It requires to revise quite a few flags in order to implement
readonly depth/stencil attachment on Vulkan. For example:
- VkAccessFlags,
- VkPipelineStageFlags,
- VkImageUsageFlags,
- and the most important: VkImageLayout.
These revised flags need to be applied to many Vulkan objects.
For examples:
- VkImageMemoryBarriers,
- IMAGE_LAYOUT revisions in descriptor set (bindings),
render pass, and subpass,
- and loadOp/storeOp revisions in render pass and subpass.
This change also does some workarounds in order to make Vulkan
validation layers happy. For example:
- use DEPTH_STENCIL_READ_ONLY image layout for binding a
depth/stencil texture,
- add DEPTH_STENCIL_ATTACHMENT_BIT image usage for binding a
depth/stencil texture.
Note that STORE_OP_STORE is used for depth/stencil's storeOp for
readonly attachment. It leads to Vulkan validation error. This
change igores that error and let it proceeds and it works well.
Bug: dawn:485
Change-Id: Ie247c9cbffbd837984b0933a905632ab5ad8862d
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/70280
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Yunchao He <yunchao.he@intel.com>
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.h version that Dawn implements.webgpu.h.Helpful links:
Developer documentation:
User documentation: (TODO, figure out what overlaps with the webgpu.h docs)
(TODO)
Apache 2.0 Public License, please see LICENSE.
This is not an officially supported Google product.