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gerrit-public.fairphone.software / platform / external / angle / 0c5a55a58b454b1d05989ba5a0aebb6c8da9e3a6
commit0c5a55a58b454b1d05989ba5a0aebb6c8da9e3a6[log] [tgz]
authorCharlie Lao <cclao@google.com>Thu Dec 17 14:52:59 2020 -0800
committerCommit Bot <commit-bot@chromium.org>Mon Dec 21 20:32:23 2020 +0000
treebf3a597df897c95858353add5d1db8b529789aee
parent4e2b6d6b01028728634d65d0f69523da145420e7 [diff]
Vulkan: MapBufferRange should avoid wait if INVALIDATE_BUFFER is set

If glMapBufferRange is called with GL_MAP_INVALIDATE_BUFFER_BIT bit set,
caller indicates that it don't care about the previous content. If the
buffer is busy, instead of wait for GPU to finish and then map the
buffer, we should just allocate a new memory and return it.

brawl_stars is hitting this case. With this CL, the frame time is
cutting to half on the pixel device.

Bug: b/175905404
Change-Id: If1220f07ebf53dd28fe6a4732eaba84e2e57598e
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2597784
Reviewed-by: Tim Van Patten <timvp@google.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Commit-Queue: Charlie Lao <cclao@google.com>
1 file changed
tree: bf3a597df897c95858353add5d1db8b529789aee
  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