AvaloniaUI
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angle
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A conformant OpenGL ES implementation for Windows, Mac and Linux.
11 416 коммитов 1 957 Ветки 0 Теги 157 MiB
C++ 86.8%
C 6.8%
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Python 2.2%
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Shahbaz Youssefi 0721cc8ba0 Vulkan: No line raster emulation code if extension 
A flag is added to the translator to disable generation of Bresenham
line raster emulation code when the Bresenham line raster Vulkan
extension is present.  This is primarily for the sake of conversion of
line raster emulation condition to specialization constant:

- Avoid dead SPIR-V code in every shader
- Avoid ANGLEUniforms being active in every shader stage even if it's
  not used anywhere but in line raster emulation.
- Optimize SPIR-V transformations by both having fewer instructions to
  iterate through, and to avoid generating line raster patches.
- Reduce the severity of anglebug.com/4251 where the location assignment
  of ANGLEPosition can incorrectly overlap a varying array or struct, by
  making only platforms without Bresenham extension afflicted by the
  bug.

Bug: angleproject:3394
Change-Id: Ic0ae6ce0392b4eae0cc79cb94bbcd0805b276a31
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1986379
Reviewed-by: Cody Northrop <cnorthrop@google.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
 		2020-01-06 21:05:38 +00:00
android Remove build_apk_secondary_abi from gn files 2019-12-04 21:52:52 +00:00
build_overrides Vulkan: Use volk to load vk* func ptrs 2019-12-16 20:08:39 +00:00
doc Add missing steps in DevSetup 2020-01-06 19:22:38 +00:00
extensions Add ability to disable all ANGLE features 2019-11-20 17:01:23 +00:00
gni Re-land "Add new test runner harness." (#2) 2019-12-16 23:52:35 +00:00
include Vulkan: No line raster emulation code if extension 2020-01-06 21:05:38 +00:00
infra Link to the autoroller configuration directory in the wrangling doc. 2019-12-03 16:46:55 +00:00
samples GN: Make new angle_test_utils target. 2019-12-16 22:35:05 +00:00
scripts update date comments to 2020 2020-01-06 16:25:35 +00:00
src Vulkan: No line raster emulation code if extension 2020-01-06 21:05:38 +00:00
third_party Remove an unused .gn file. 2019-12-03 16:33:56 +00:00
tools Automatically call flex/bison if necessary 2019-12-03 19:29:42 +00:00
util update date comments to 2020 2020-01-06 16:25:35 +00:00
.clang-format Add script to apply clang-format on all sources 2019-07-19 20:10:28 +00:00
.gitattributes Automatically call flex/bison if necessary 2019-12-03 19:29:42 +00:00
.gitignore Ignore nameless vim swap files 2019-12-19 16:38:59 +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 Add Broadcom as a known vendor 2019-12-19 18:00:56 +00:00
BUILD.gn Vulkan: Add test that logs supported texture formats 2019-12-16 22:47:25 +00:00
CONTRIBUTORS Add Broadcom as a known vendor 2019-12-19 18:00:56 +00:00
DEPS Roll third_party/vulkan-validation-layers/src e4a2b7f22782..2be3fe0f8471 (7 commits) 2020-01-03 09:46:39 +00:00
LICENSE
…
OWNERS Add COMPONENT and TEAM information in OWNERS file 2019-10-09 00:27:15 +00:00
PRESUBMIT.py Improve presubmit's Bug: tag check 2019-12-17 15:56:43 +00:00
README.chromium
…
README.md Add Metal progress to README 2019-11-11 13:48:50 +00:00
WATCHLISTS Add watchlist file for ANGLE. 2019-02-28 15:47:54 +00:00
additional_readme_paths.json Use xxHash for faster hash map lookups. 2018-11-20 16:37:07 +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 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 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 in progress
OpenGL ES 3.1 in progress complete complete in progress
OpenGL ES 3.2 planned planned planned

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
Fuchsia in 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