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android/platform/external/angle/9acaf66260
commit
9acaf662604246d482f735339ef7d1d03d268e67
[log]
author
Jamie Madill <jmadill@chromium.org>
Fri Feb 28 14:58:17 2020 -0500
committer
Commit Bot <commit-bot@chromium.org>
Thu Mar 05 19:13:08 2020 +0000
tree
e3e1f15bcc584216354569ad0e1094b0691450bb
parent
55228e53750d7af59750d9cd0a348423ffde9bd3 [diff]
Add timer query support to TracePerfTests.

This can allow us to get some profiling measurements on ANGLE vs a
native driver. We correlate host times with GL times using the blocking
timestamp query. We also time RenderPasses/FBO switches using the
trace instrumentation we added in an earlier patch combined with timer
queries.

Not currently instrumented for the current tests. We'll need to re-run
capture to get the callbacks working correctly.

Bug: angleproject:4433
Change-Id: I8f61774a3a090ac9460a378d34715a72954d1331
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2080597
Reviewed-by: Cody Northrop <cnorthrop@google.com>
Commit-Queue: Jamie Madill <jmadill@chromium.org>
6 files changed
tree: e3e1f15bcc584216354569ad0e1094b0691450bb
  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. .yapfignore
  20. additional_readme_paths.json
  21. AUTHORS
  22. BUILD.gn
  23. codereview.settings
  24. CONTRIBUTORS
  25. DEPS
  26. dotfile_settings.gni
  27. LICENSE
  28. OWNERS
  29. PRESUBMIT.py
  30. README.chromium
  31. README.md
  32. 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 2.0completecompletecompletecompletecompletein progress
OpenGL ES 3.0completecompletecompletecomplete
OpenGL ES 3.1in progresscompletecompletein progress
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
Fuchsiain progress

ANGLE v1.0.772 was certified compliant by passing the ES 2.0.3 conformance tests in October 2011. With the Vulkan backend, ANGLE 2.1.0.d46e2fb1e341 was certified compliant to ES 2.0 in Nov 2019, and ANGLE 2.1.0.f18ff947360d to ES 3.0 in Feb 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