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A conformant OpenGL ES implementation for Windows, Mac and Linux.
17 211 коммитов 1 957 Ветки 0 Теги 157 MiB
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Tim Van Patten 53371cc0a7 Vulkan: Use optimalBufferCopyOffsetAlignment 
optimalBufferCopyOffsetAlignment is the optimal buffer offset alignment
in bytes for vkCmdCopyBufferToImage2KHR, vkCmdCopyBufferToImage,
vkCmdCopyImageToBuffer2KHR, and vkCmdCopyImageToBuffer. The per texel
alignment requirements are enforced, but applications should use the
optimal alignment for optimal performance and power use.

To improve efficiency, this CL updates ContextVk::mStagingBuffer's
alignment to the max of:
- minMemoryMapAlignment
- nonCoherentAtomSize
- optimalBufferCopyOffsetAlignment

On ARM, this is not expected to have any affect, since all three values
are 0x40, but other platforms may see a benefit.

Bug: angleproject:4297
Change-Id: I9185da111e09c5d782eb1dedb10369727cb9bf51
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3256007
Commit-Queue: Tim Van Patten <timvp@google.com>
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Charlie Lao <cclao@google.com>
 		2021-11-09 01:51:35 +00:00
android Rename ANGLE APK label to: com.android.angle 2021-06-14 18:00:46 +00:00
build_overrides Add standalone Android build. 2021-04-20 15:24:42 +00:00
doc Doc: Clarify purpose of listed build options in DevSetup.md 2021-10-21 19:58:24 +00:00
extensions Metal: Reintroduce GPU power preference selection code. 2021-11-08 16:11:51 +00:00
gni [ios] Remove support for building with Xcode clang 2021-11-04 19:57:28 +00:00
include Vulkan: Always override surface format GL_RGB8 to GL_RGBA8 2021-11-06 02:33:20 +00:00
infra infra: Switch ASAN to 64-bit on Windows. 2021-11-08 22:32:41 +00:00
samples samples: Improve TorusLighting samples. 2021-09-23 16:52:49 +00:00
scripts infra: Switch ASAN to 64-bit on Windows. 2021-11-08 22:32:41 +00:00
src Vulkan: Use optimalBufferCopyOffsetAlignment 2021-11-09 01:51:35 +00:00
third_party Fix and disable MSVC warnings 2021-10-07 06:08:03 +00:00
tools Add simple UBSAN ignorelist. 2021-06-22 14:39:49 +00:00
util Metal: Reintroduce GPU power preference selection code. 2021-11-08 16:11:51 +00:00
.clang-format Update .clang-format. 2020-04-28 14:23:13 +00:00
.gitattributes infra: Update bot naming scheme. 2021-10-15 19:46:33 +00:00
.gitignore remove swarming_client 2021-08-25 12:49:35 +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 Change links from 'master' to 'main' branch. 2021-09-08 18:03:39 +00:00
.vpython3 Change links from 'master' to 'main' branch. 2021-09-08 18:03:39 +00:00
.yapfignore Add .yapfignore file 2019-10-14 17:57:09 +00:00
AUTHORS D3D11: Fix incorrect bounds checking in Blit11 2021-07-07 18:07:14 +00:00
Android.mk Remove .find_ignore files 2021-05-20 18:35:26 +00:00
BUILD.gn [ios] Remove support for building with Xcode clang 2021-11-04 19:57:28 +00:00
CONTRIBUTORS D3D11: implement EXT_clip_control 2021-10-12 18:57:15 +00:00
DEPS DEPS: Remove isolated client. 2021-11-08 15:06:01 +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 Change links from 'master' to 'main' branch. 2021-09-08 18:03:39 +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 Update link to old presentation 2021-10-18 17:22:56 +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 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 planned
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 1.4 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