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android/platform/external/angle/d24752e63a
commit
d24752e63ae4ae541cd6089541235200421c1780
[log]
author
Jamie Madill <jmadill@chromium.org>
Sun Mar 15 21:34:10 2020 -0400
committer
Commit Bot <commit-bot@chromium.org>
Tue Mar 17 00:24:46 2020 +0000
tree
66f0ffbf53fddf99d3418a6ff606a0398d39af60
parent
7c334c56de5d57f43b5618f562c21799bf4f941f [diff]
Capture/Replay: Write to single binary data file.

Previously the tool would save to a separate file for every frame and
one additional file for the setup function. Frames without binary data
would not get an "angledata" binary file.

Using a single file has a few advantages:

 - makes it simpler to track the data dependencies in GN
 - should be easier to compress and decompress for speed up transfers
 - no need to wonder if we have frames with missing data files
 - less overhead reading from the HDD since the whole trace is buffered

We might need to worry about extemely huge memory use cases. For now
buffering the whole file into memory on startup is simple and fast.

Also makes the binary data loader function more robust.

Bug: angleproject:4484
Change-Id: Ia74fb0bc65200adf7a21c3143f98aa4da86457b1
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2104554
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Courtney Goeltzenleuchter <courtneygo@google.com>
Reviewed-by: Cody Northrop <cnorthrop@google.com>
2 files changed
tree: 66f0ffbf53fddf99d3418a6ff606a0398d39af60
  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