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A conformant OpenGL ES implementation for Windows, Mac and Linux.
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Cody Northrop 437053a163 Revert "Make SPIRV optional for Metal backend" 
This reverts commit 29287e1fc7.

Reason for revert:
Possible root cause of Mac failures http://crbug.com/1320588

Original change's description:
> Make SPIRV optional for Metal backend
>
> This allows clients (ie Skia) to build ANGLE without needing
> all of the additional Vulkan dependencies. Developer builds
> will continue to include both the direct and SPIRV paths, for
> debugging purposes.
>
> Bug: angleproject:7155
> Change-Id: I1c38ee19e747df8b25fd2f8e8efa3b420a4d7766
> Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3605764
> Commit-Queue: Kenneth Russell <kbr@chromium.org>
> Reviewed-by: Kenneth Russell <kbr@chromium.org>
> Auto-Submit: Brian Osman <brianosman@google.com>
> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>

Bug: chromium:1320588
Change-Id: Id160118146dad1b8f1af40c60ddefd717516cd1d
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3614527
Reviewed-by: Cody Northrop <cnorthrop@google.com>
Commit-Queue: Kenneth Russell <kbr@chromium.org>
Auto-Submit: Cody Northrop <cnorthrop@google.com>
Reviewed-by: Kenneth Russell <kbr@chromium.org>
 		2022-04-28 16:38:31 +00:00
android Rename ANGLE APK label to: com.android.angle 2021-06-14 18:00:46 +00:00
build_overrides Remove swiftshader_spirv_tools_dir 2022-04-05 12:31:34 +00:00
doc Vulkan: Add entry points for GL_QCOM_shading_rate 2022-04-25 18:24:55 +00:00
extensions Add ForceGPUSwitch to EGL_ANGLE_power_preference 2022-03-19 01:15:06 +00:00
gni Revert "Make SPIRV optional for Metal backend" 2022-04-28 16:38:31 +00:00
include Add forceDepthAttachmentInitOnClear frontend workaround 2022-04-27 22:29:57 +00:00
infra Android perf tests shards 20->6 (only --smoke-test-mode) 2022-04-27 16:08:26 +00:00
samples Migrate capture_replay sample to trace_fixture 2022-03-25 16:01:16 +00:00
scripts Roll Chromium from c7e51a124fab to 1e97e6cd1c3c (915 revisions) 2022-04-28 09:27:26 +00:00
src Revert "Make SPIRV optional for Metal backend" 2022-04-28 16:38:31 +00:00
third_party Sync logdog with Chromium 2021-12-08 19:25:08 +00:00
tools Upgrade Python scripts from Python2 to Python3 2022-02-24 21:10:41 +00:00
util Add forceDepthAttachmentInitOnClear frontend workaround 2022-04-27 22:29:57 +00:00
.clang-format Update .clang-format. 2020-04-28 14:23:13 +00:00
.gitattributes infra: Trigger win-trace on angle_end2end_tests changes. 2021-11-26 20:53:49 +00:00
.gitignore Vulkan: Wayland dependency 2022-02-24 14:03:21 +00:00
.gn Roll Chromium from 3bcc8fd7c291 to 6c5859c895f5 (510 revisions) 2021-06-09 18:06:11 +00:00
.style.yapf Format all of ANGLE's python code. 2019-05-06 18:56:09 +00:00
.vpython Remove reference to policy_testserver.py 2022-02-15 16:18:29 +00:00
.vpython3 Fix Python3 usage with perf tests/gold tests. 2021-11-26 18:45:29 +00:00
.yapfignore Add .yapfignore file 2019-10-14 17:57:09 +00:00
AUTHORS Add loongarch support 2022-03-18 03:01:54 +00:00
Android.mk Remove .find_ignore files 2021-05-20 18:35:26 +00:00
BUILD.gn Revert "Make SPIRV optional for Metal backend" 2022-04-28 16:38:31 +00:00
CONTRIBUTORS Vulkan: use "undefined" for layerProvokingVertex 2022-04-21 13:51:55 +00:00
DEPS Roll vulkan-deps from 4f93dbdc6060 to 1963b94c99e8 (2 revisions) 2022-04-28 12:18:48 +00:00
DIR_METADATA Move metadata in OWNERS files to DIR_METADATA files 2021-02-04 19:09:11 +00:00
LICENSE Update license and readme for use downstream 2018-03-27 20:53:53 +00:00
OWNERS Add to ANGLE's OWNERS 2022-02-25 20:10:02 +00:00
PRESUBMIT.py Add tint: to the list of allowed Bug: tags. 2021-04-06 13:56:58 +00:00
README.chromium Update license and readme for use downstream 2018-03-27 20:53:53 +00:00
README.md Doc: Update supported EGL minor version 2022-03-16 19:45:20 +00:00
WATCHLISTS WATCHLISTS: Remove timvp@ from 'vulkan' 2022-03-03 15:13:09 +00:00
additional_readme_paths.json Vulkan: Generate mipmap in compute 2020-07-26 19:38:41 +00:00
codereview.settings Use "full" git cl format by default. 2019-10-24 23:14:12 +00:00
dotfile_settings.gni Remove Vulkan repos from exec script whitelist. 2019-10-20 16:26:45 +00:00

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 complete
OpenGL ES 3.0 complete complete complete complete in progress
OpenGL ES 3.1 incomplete 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 in progress
Chrome OS complete planned
Android complete complete
GGP (Stadia) complete
Fuchsia complete

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 1.5 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