A conformant OpenGL ES implementation for Windows, Mac and Linux.
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Tobin Ehlis d72765868d Vulkan:Use roundUpPow2 where possible
Utility function roundUpPow2 is more optimal than roundUp so use it.

Bug: b/166462979
Change-Id: I616fa9f487b818137b1b496d93e292c3bd1f428c
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2377119
Reviewed-by: Courtney Goeltzenleuchter <courtneygo@google.com>
Reviewed-by: Cody Northrop <cnorthrop@google.com>
Commit-Queue: Tobin Ehlis <tobine@google.com>
2020-08-27 19:17:15 +00:00
android Reformat GN files 2020-02-21 23:37:44 +00:00
build_overrides Roll chromium_revision b0410bba02..fb6cbaf6e5 (763000:790363) 2020-07-21 17:04:12 +00:00
doc Capture/Replay: Allow starting capture at an unknown frame 2020-08-11 22:24:58 +00:00
extensions Add support for P010 IOSurfaces 2020-08-26 18:42:31 +00:00
gni Generalize zlib utils dir for Skia build. 2020-08-26 18:30:01 +00:00
include Metal: Use compute to generate 3D texture's mipmap. 2020-08-26 01:58:32 +00:00
infra Infra: Migrate to new Goma RBE service 2020-06-10 16:16:45 +00:00
samples Samples: Fix Capture/Replay release build 2020-08-07 23:27:08 +00:00
scripts Roll Vulkan-Headers from 834673eaa34a to ced848d699b5 (1 revision) 2020-08-27 09:20:05 +00:00
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third_party Remove angle_libjpeg_turbo_dir fallback after Chromium side fix 2020-07-09 02:59:55 +00:00
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AUTHORS D3D: Make possible to build angle without D3D11 2020-07-22 15:01:05 +00:00
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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 9 Direct3D 11 Desktop GL GL ES Vulkan Metal
OpenGL ES 2.0 complete complete complete complete complete in progress
OpenGL ES 3.0 complete complete complete complete
OpenGL ES 3.1 in progress complete complete complete
OpenGL ES 3.2 in progress in progress in progress

Platform support via backing renderers

Direct3D 9 Direct3D 11 Desktop GL GL ES Vulkan Metal
Windows complete complete complete complete complete
Linux complete complete
Mac OS X complete in progress
iOS planned
Chrome OS complete planned
Android complete complete
GGP (Stadia) complete
Fuchsia in 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