Jiawei Shao dd0332ec91 D3D12: Add workaround for DstAlpha blend factor issue on Intel GPUs
On Intel Gen9 and Gen9.5 GPUs there is a D3D12 driver bug about
using DstAlpha as the source blend factors in both color and alpha
blending.

Although we cannot add workaround for all such cases, we have
confirmed that when the blend operation is 'add', and the
destination blend factors are ‘zero', we can workaround this driver
bug by replacing 'add' to 'minus'. We cannot add workaround when
destination blend factor is another value.

This patch adds such workaround on the affected platforms.

Bug: dawn:1579
Test: dawn_end2end_tests
Change-Id: If7c82b9d559b876e42fb36e2f539f9ff2f71ea91
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/120981
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
2023-02-24 01:34:56 +00:00
2022-10-13 12:55:42 +00:00
2023-02-13 17:10:44 +00:00
2023-02-05 10:52:57 +00:00
2023-02-23 13:03:52 +00:00
2023-02-22 20:02:55 +00:00
2022-05-30 18:00:58 +00:00
2022-06-18 16:16:11 +00:00
2023-01-26 15:57:27 +00:00
2020-03-02 15:47:43 -05:00
2022-04-10 22:14:00 +00:00
2022-12-19 19:06:51 +00:00
2021-12-02 21:25:58 +00:00

Dawn's logo: a sun rising behind a stylized mountain inspired by the WebGPU logo. The text "Dawn" is written below it.

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.h version that Dawn implements.
    • A C++ wrapper for the webgpu.h.
  • A "native" implementation of WebGPU using platforms' GPU APIs: D3D12, Metal, Vulkan and OpenGL. See per API support for more details.
  • A client-server implementation of WebGPU for applications that are in a sandbox without access to native drivers
  • Tint is a compiler for the WebGPU Shader Language (WGSL) that can be used in standalone to convert shaders from and to WGSL.

Helpful links:

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.

Description
CMake-only fork of https://dawn.googlesource.com/dawn with cleaned, vendored dependencies
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