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android/platform/external/angle/fc0be0494e
commit
fc0be0494ee791c1fa914dcd260e1d64c4b726e5
[log]
author
Shahbaz Youssefi <syoussefi@chromium.org>
Thu Apr 18 09:44:06 2019 -0400
committer
Commit Bot <commit-bot@chromium.org>
Wed May 01 15:58:31 2019 +0000
tree
e7abf1ce2cc6df06ad5a71a962eca0cc4dd3f782
parent
b81490759f4eb8da0e00acb811f39febd8e1d171 [diff]
Fix GL_MAX_COMBINED_UNIFORM_BLOCKS query

This was previously returning maxCombinedTextureImageUnits instead of
maxCombinedUniformBlocks.  Fixing that exposed a bug in the GL backend
where the combined values were sometimes capped to vertex+fragment
values and sometimes not capped at all.

The reasoning for such capping was that the combined limits as queried
from GL contains stages not available in GLES (such as tessellation).
However, the capping failed to take geometry shader limits into account.

This change adjusts such capping to vertex+fragment+geometry.  It also
applies the cappping to all combined limits, rather than a select few.

Bug: angleproject:2099
Change-Id: I7231058b5d7f80b1b2452d9f87d4b0ab6e1cdb17
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1572487
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
3 files changed
tree: e7abf1ce2cc6df06ad5a71a962eca0cc4dd3f782
  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. additional_readme_paths.json
  20. AUTHORS
  21. BUILD.gn
  22. codereview.settings
  23. CONTRIBUTORS
  24. DEPS
  25. dotfile_settings.gni
  26. LICENSE
  27. OWNERS
  28. PRESUBMIT.py
  29. README.chromium
  30. README.md
  31. 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 2.0completecompletecompletecompletein 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
Linuxcompletein progress
Mac OS Xin progress
Chrome OScompleteplanned
Androidcompletein 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