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chromium / angle / angle / refs/heads/chromium/4304
commit9e3eec5464d66627144c5fe94f220309158ea2cf[log] [tgz]
authorJamie Madill <jmadill@chromium.org>Sun Oct 25 15:44:09 2020
committerCommit Bot <commit-bot@chromium.org>Sun Oct 25 17:41:39 2020
tree8d331c941e50582cdaaad21a32ee1620ff2fc929
parent2d6b60266e39a433487e8003595af5c8af541772 [diff]
Revert "Vulkan: Make DescriptorPoolHelper a Resource"

This reverts commit 5dcd29a6e532e4bd617af8767d488120b57f3b2c.

Reason for revert: Breaking the ANGLE -> Chromium roller:

https://chromium-review.googlesource.com/c/chromium/src/+/2496281

Original change's description:
> Vulkan: Make DescriptorPoolHelper a Resource
>
> Descriptor pools need to live as long as the descriptor sets that are
> allocated from them. Using Serials while building a command to judge a
> pool's lifetime is prone to errors, since a command's Serial value
> isn't known until the command is submitted, leading to deleting pools
> too early relative to when the descriptor set is actually used.
>
> This CL updates DescriptorPoolHelper to inherit from Resource, so the
> descriptor pools can be retain()'ed. This allows the Resource's counter
> to indicate that a pool is in use until the command's Serial is known
> and can be recorded to indicate when the command completes. This
> prevents descriptor pools from being destroyed before the command
> completes (while the descriptor sets are still in use), or even before
> the command has been submitted. Destroying a descriptor pool resets all
> of the descriptors that were allocated from it, which can trigger a
> variety of VVL errors depending on when it's erroneously performed.
>
> This CL also adds the necessary retain() calls for the descriptor pools.
> In particular, the pools need to be retained each time a cached
> descriptor set that was allocated from it is re-used. This is relatively
> simple with the current design, since we always clear the descriptor set
> caches whenever a new pool is allocated, so the descriptor pool binding
> is always accurate.
>
> Bug: angleproject:5030
> Test: MultithreadingTest::MultiContextDrawSmallDescriptorPools()
> Change-Id: I5fdeeb46159448dfd679d7169e423048348be5ab
> Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2437609
> Commit-Queue: Tim Van Patten <timvp@google.com>
> Reviewed-by: Jamie Madill <jmadill@chromium.org>
> Reviewed-by: Courtney Goeltzenleuchter <courtneygo@google.com>

TBR=courtneygo@google.com,timvp@google.com,jmadill@chromium.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: angleproject:5030
Change-Id: I0fd6d9a0e1b0989b22368ef98652281288699deb
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2497222
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
10 files changed
tree: 8d331c941e50582cdaaad21a32ee1620ff2fc929
  1. android/
  2. build_overrides/
  3. doc/
  4. extensions/
  5. gni/
  6. include/
  7. infra/
  8. samples/
  9. scripts/
  10. src/
  11. third_party/
  12. tools/
  13. util/
  14. .clang-format
  15. .gitattributes
  16. .gitignore
  17. .gn
  18. .style.yapf
  19. .vpython
  20. .vpython3
  21. .yapfignore
  22. additional_readme_paths.json
  23. AUTHORS
  24. BUILD.gn
  25. codereview.settings
  26. CONTRIBUTORS
  27. DEPS
  28. dotfile_settings.gni
  29. LICENSE
  30. OWNERS
  31. PRESUBMIT.py
  32. README.chromium
  33. README.md
  34. WATCHLISTS
README.md

ANGLE - Almost Native Graphics Layer Engine

The goal of ANGLE is to allow users of multiple operating systems to seamlessly run WebGL and other OpenGL ES content by translating OpenGL ES API calls to one of the hardware-supported APIs available for that platform. ANGLE currently provides translation from OpenGL ES 2.0, 3.0 and 3.1 to Vulkan, desktop OpenGL, OpenGL ES, Direct3D 9, and Direct3D 11. Future plans include ES 3.2, translation to Metal and MacOS, Chrome OS, and Fuchsia support.

Level of OpenGL ES support via backing renderers

Direct3D 9Direct3D 11Desktop GLGL ESVulkanMetal
OpenGL ES 2.0completecompletecompletecompletecompletecomplete
OpenGL ES 3.0completecompletecompletecompletein progress
OpenGL ES 3.1incompletecompletecompletecomplete
OpenGL ES 3.2in progressin progressin progress

Platform support via backing renderers

Direct3D 9Direct3D 11Desktop GLGL ESVulkanMetal
Windowscompletecompletecompletecompletecomplete
Linuxcompletecomplete
Mac OS Xcompletein progress
iOSplanned
Chrome OScompleteplanned
Androidcompletecomplete
GGP (Stadia)complete
Fuchsiain progress

ANGLE v1.0.772 was certified compliant by passing the OpenGL ES 2.0.3 conformance tests in October 2011.

ANGLE has received the following certifications with the Vulkan backend:

  • OpenGL ES 2.0: ANGLE 2.1.0.d46e2fb1e341 (Nov, 2019)
  • OpenGL ES 3.0: ANGLE 2.1.0.f18ff947360d (Feb, 2020)
  • OpenGL ES 3.1: ANGLE 2.1.0.f5dace0f1e57 (Jul, 2020)

ANGLE also provides an implementation of the EGL 1.4 specification.

ANGLE is used as the default WebGL backend for both Google Chrome and Mozilla Firefox on Windows platforms. Chrome uses ANGLE for all graphics rendering on Windows, including the accelerated Canvas2D implementation and the Native Client sandbox environment.

Portions of the ANGLE shader compiler are used as a shader validator and translator by WebGL implementations across multiple platforms. It is used on Mac OS X, Linux, and in mobile variants of the browsers. Having one shader validator helps to ensure that a consistent set of GLSL ES shaders are accepted across browsers and platforms. The shader translator can be used to translate shaders to other shading languages, and to optionally apply shader modifications to work around bugs or quirks in the native graphics drivers. The translator targets Desktop GLSL, Vulkan GLSL, Direct3D HLSL, and even ESSL for native GLES2 platforms.

Sources

ANGLE repository is hosted by Chromium project and can be browsed online or cloned with

git clone https://chromium.googlesource.com/angle/angle

Building

View the Dev setup instructions.

Contributing