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android/platform/external/angle/e8c0aa81af
commit
e8c0aa81af87f629ae2f1c0f96bee1c7650a7075
[log]
author
Shahbaz Youssefi <syoussefi@chromium.org>
Tue Jan 26 23:40:36 2021 -0500
committer
Commit Bot <commit-bot@chromium.org>
Wed Feb 17 02:36:50 2021 +0000
tree
0a475cbc11deebea6a8848a41a5041f5ed74f48e
parent
60b03e6242c3b4e145f955a284f2607fa85710a8 [diff]
Vulkan: Clean up transform feedback extension pause/resume

1. The xfb counter buffer barrier issued was wrong, following a typo in
   the spec.  This barrier is now correctly issued using the usual
   barrier APIs.
2. A mechanism was added to automatically pause/resume transform
   feedback when a program pipeline needs to be rebound.  This is
   incorrect as it misses the xfb counter buffer barrier.  The render
   pass is broken instead if transform feedback is active/unpaused and
   the program pipeline is changed.
3. The transform feedback counter buffers are now disposed of when
   transform feedback is ended.  This avoids an unnecessary barrier that
   this change would have otherwise incurred (and hence render pass
   break) in Manhattan which repurposes the same transform feedback
   object.

Bug: angleproject:5528
Change-Id: I1ffe8b4b8975645ba43afd70e9cdbb0765529da5
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2651647
Reviewed-by: Tim Van Patten <timvp@google.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
10 files changed
tree: 0a475cbc11deebea6a8848a41a5041f5ed74f48e
  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. DIR_METADATA
  29. dotfile_settings.gni
  30. LICENSE
  31. OWNERS
  32. PRESUBMIT.py
  33. README.chromium
  34. README.md
  35. 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
Fuchsiacomplete

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