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chromium / angle / angle / refs/heads/chromium/3294
commitece125358ba245436769c56805edebc484a12ec5[log] [tgz]
authorYunchao He <yunchao.he@intel.com>Tue Nov 21 07:50:21 2017
committerCommit Bot <commit-bot@chromium.org>Wed Dec 13 19:08:47 2017
treee59b5399cb7749ed54a55660b5164b44e3cb1f1b
parent5f19810d5d1cfafdfd72323c707220f26dcfd080 [diff]
ES31: Fix the issue for relink rendering/compute program.

When link or relink fails, if we try to install the unsuccessfully linked
program (via UseProgram) and start rendering or dispatch compute, We can
not always report INVALID_OPERATION for rendering/compute pipeline.
The result depends on the previous state: Whether a valid program has been
installed in pipeline before. If a valid program has been installed, it
should be OK to use the old executable residing in the GL state to start
rendering or dispatch compute. No error should be reported.

This change also add unit tests for unsuccessfully linked/relinked program
for rendering pipeline to avoid potential error.

If a program successfully relinks when it is in use, the program might
change from a rendering program to a compute program in theory,
or vice versa.

BUG=angleproject:2266

Change-Id: I4726112af2bc74f5beef25e35d2fcaa9f31e0768
Reviewed-on: https://chromium-review.googlesource.com/784273
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
5 files changed
tree: e59b5399cb7749ed54a55660b5164b44e3cb1f1b
  1. build_overrides/
  2. doc/
  3. extensions/
  4. gni/
  5. gyp/
  6. include/
  7. infra/
  8. samples/
  9. scripts/
  10. src/
  11. third_party/
  12. util/
  13. .clang-format
  14. .gitattributes
  15. .gitignore
  16. .gn
  17. AUTHORS
  18. BUILD.gn
  19. codereview.settings
  20. CONTRIBUTORS
  21. DEPS
  22. DEPS.chromium
  23. LICENSE
  24. OWNERS
  25. README.chromium
  26. README.md
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 2.0completecompletecompletecompletein progress
OpenGL ES 3.0completecompletein progressnot started
OpenGL ES 3.1not startedin progressin progressnot started

Platform support via backing renderers

Direct3D 9Direct3D 11Desktop GLGL ESVulkan
Windowscompletecompletecompletecompletein progress
Linuxcompleteplanned
Mac OS Xin progress
Chrome OScompleteplanned
Androidcompleteplanned

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. For generating a Windows Store version of ANGLE view the Windows Store instructions

Contributing