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gerrit-public.fairphone.software / platform / external / angle / cd5489ad46bd1a3f9e80073a8cb1760ed8b17f96
commitcd5489ad46bd1a3f9e80073a8cb1760ed8b17f96[log] [tgz]
authorShahbaz Youssefi <syoussefi@chromium.org>Sun Jul 19 00:05:21 2020 -0400
committerCommit Bot <commit-bot@chromium.org>Mon Jul 20 23:35:04 2020 +0000
tree04edad300bccf528c577ab02d6662f5beff105ef
parent234be1946a8c7e5a908cc38885cdc29283b7b582 [diff]
Vulkan: Faster FramebufferDesc compare

Objects of this class are used as keys to a hash map and contain 10
serials.  Prior to this change, operator== would compare all 10 serials.
This change tracks the maximum index set and only compares up to that
many serials.

To make sure this maximum index stays low in the presence of
depth/stencil attachment, this class stores the depth/stencil
attachment's serial before the color attachments.  The update API of the
class is improved so this implementation detail is not leaked.

This is in preparation for supporting resolve attachments, which would
add another 8 serials to the class.  With this change, the performance
of cases that don't use resolve attachments won't be affected.

Bug: angleproject:4836
Change-Id: Ia4874ab79163901fb86f5bee4120e9f19babdc09
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2306514
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Tim Van Patten <timvp@google.com>
3 files changed
tree: 04edad300bccf528c577ab02d6662f5beff105ef
  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 progresscompletecompletecomplete
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 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