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A conformant OpenGL ES implementation for Windows, Mac and Linux.
13 166 коммитов 1 957 Ветки 0 Теги 157 MiB
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Cody Northrop a7cbb3f06f Capture/Replay: Allow starting capture at an unknown frame 
This CL adds a new way to set the start frame of a capture.
It adds a new environment variable called ANGLE_CAPTURE_TRIGGER
that, when set, will be used instead of frame start and end.

By setting ANGLE_CAPTURE_TRIGGER to a non-zero value, ANGLE will
capture that many frames when the value changes. For example,
on Android, we can set it with:

  adb shell setprop debug.angle.capture.trigger 20

When we reach the target content, set the value back to zero:

  adb shell setprop debug.angle.capture.trigger 0

and ANGLE will start capturing 20 frames.

Currently only hooked up for Android, but should be possible to
support on other platforms.

Test: Capture application frames using trigger
Bug: angleproject:4949
Change-Id: I469ef5c48feb78c85b8cda2fefd5df59e495bbe2
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2347858
Commit-Queue: Cody Northrop <cnorthrop@google.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Manh Nguyen <nguyenmh@google.com>
 		2020-08-11 22:24:58 +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 Move EXT_external_objects validation to validationESEXT.cpp 2020-08-06 04:53:36 +00:00
gni Enable the use of chromium worker pool 2020-07-07 16:32:55 +00:00
include Metal: Init format table using Metal-Feature-Set-Tables.pdf 2020-08-11 05:55:26 +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 Add tools/clang/dsymutil to roll_chromium_deps.py 2020-08-11 18:39:38 +00:00
src Capture/Replay: Allow starting capture at an unknown frame 2020-08-11 22:24:58 +00:00
third_party Remove angle_libjpeg_turbo_dir fallback after Chromium side fix 2020-07-09 02:59:55 +00:00
tools Create empty //tools/android/md5sum/BUILD.gn 2020-08-04 22:40:36 +00:00
util Entry points for ANGLE_external_objects_flags 2020-08-05 09:20:36 +00:00
.clang-format Update .clang-format. 2020-04-28 14:23:13 +00:00
.gitattributes Automatically call flex/bison if necessary 2019-12-03 19:29:42 +00:00
.gitignore Vulkan: Update VMA directory. 2020-05-08 18:25:45 +00:00
.gn angle: Stop setting secondary_source. 2019-05-13 13:42:57 +00:00
.style.yapf Format all of ANGLE's python code. 2019-05-06 18:56:09 +00:00
.yapfignore Add .yapfignore file 2019-10-14 17:57:09 +00:00
AUTHORS D3D: Make possible to build angle without D3D11 2020-07-22 15:01:05 +00:00
BUILD.gn D3D: Make possible to build angle without D3D11 2020-07-22 15:01:05 +00:00
CONTRIBUTORS Optimize thread specific storage and retrieval with native ASM 2020-06-17 00:21:26 +00:00
DEPS Roll Vulkan-ValidationLayers from b399fb08896a to fcfe5a3b19d5 (2 revisions) 2020-08-11 09:25:11 +00:00
LICENSE
…
OWNERS Update OWNERS information. 2020-03-27 19:58:54 +00:00
PRESUBMIT.py Change how multiple commit messages are split 2020-07-03 16:39:03 +00:00
README.chromium
…
README.md Add GGP to Platform Support table 2020-07-27 15:42:42 +00:00
WATCHLISTS Fix quotes around emails in WATCHLISTS 2020-04-21 16:50:07 +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 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