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android/platform/external/angle/6c7208f93d
commit
6c7208f93d6ecda3ad2515ea02e3dd5985a9dafe
[log]
author
Jamie Madill <jmadill@chromium.org>
Thu Oct 31 14:33:27 2019 -0400
committer
Commit Bot <commit-bot@chromium.org>
Sun Nov 03 03:47:41 2019 +0000
tree
267f54c9310046a6f62eb55ea6fbea70ccd78d8c
parent
b68a279ce188cc0f3920276afbd610c6ec4f7a84 [diff]
Capture/Replay: Implement mid-execution replay.

Mid-execution replay starts the replay from a specific start frame
instead of frame 0. Integration tests will then run between the start
and end frames. This lets us make much smaller reproduction cases from
large benchmarks or applications.

We implement mid-execution replay via a cpp "Setup" function. The
replay test will run the setup function before the starting frame. Test
execution proceeds normally after setup.

Currently we do not implement mid-execution capture. We run capture on
all frames. Including frames before the start frame. We do this to
intercept compiled shaders and programs for easier caching. This could
be changed in the future to also start capture mid-execution. Mid-
execution capture might require using ProgramBinary calls to capture
shader and program data.

Many captures are unimplemented. Several comments indicate missing
functionality. There's a lot we can add as we explore replaying more
complex applications and higher GL versions. We will also need some
kind of state reset functionality so we can run the replay in a loop.

Bug: angleproject:3611
Change-Id: I51841fc1a64e3622c34e49c85ed8919a9a7c0b20
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1689329
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Cody Northrop <cnorthrop@google.com>
9 files changed
tree: 267f54c9310046a6f62eb55ea6fbea70ccd78d8c
  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 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 progresscompletecompletein progress
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