Gitiles
Code Review Sign In
gerrit-public.fairphone.software / platform / external / angle / 067687f467dd07f75079592398efd559fdc50ec3
commit067687f467dd07f75079592398efd559fdc50ec3[log] [tgz]
authorGeoff Lang <geofflang@chromium.org>Wed May 29 12:48:49 2019 -0400
committerCommit Bot <commit-bot@chromium.org>Fri Jun 21 15:26:18 2019 +0000
tree132dab15d4d56ef4d578f8f9550d4637edf371ba
parent9d275db4331a37b46533c3b054d2efa5b7f15e1b [diff]
Removal global locks from GL entry points.  Always lock in EGL.

The ANGLE Vulkan backend is now thread safe for non-share group contexts. This
means that a global GL lock only adds overhead for most use cases.

Remove the angle_force_thread_safety gn argument.

BUG=angleproject:2464

Change-Id: Ic6ba89e18b46e5dd72aa83d0f409097441fcca3a
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1635749
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Tobin Ehlis <tobine@google.com>
12 files changed
tree: 132dab15d4d56ef4d578f8f9550d4637edf371ba
  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. additional_readme_paths.json
  20. AUTHORS
  21. BUILD.gn
  22. codereview.settings
  23. CONTRIBUTORS
  24. DEPS
  25. dotfile_settings.gni
  26. LICENSE
  27. OWNERS
  28. PRESUBMIT.py
  29. README.chromium
  30. README.md
  31. 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 and 3.0 to desktop OpenGL, OpenGL ES, Direct3D 9, and Direct3D 11. Support for translation from OpenGL ES to Vulkan is underway, and future plans include compute shader support (ES 3.1) and MacOS support.

Level of OpenGL ES support via backing renderers

Direct3D 9Direct3D 11Desktop GLGL ESVulkan
OpenGL ES 2.0completecompletecompletecompletecomplete
OpenGL ES 3.0completecompletecompletein progress
OpenGL ES 3.1in progresscompletecompletenot started
OpenGL ES 3.2plannedplannedplanned

Platform support via backing renderers

Direct3D 9Direct3D 11Desktop GLGL ESVulkan
Windowscompletecompletecompletecompletecomplete
Linuxcompletecomplete
Mac OS Xcomplete
Chrome OScompleteplanned
Androidcompletecomplete
Fuchsiain progress

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