Google Git
Sign in
chromium / angle / angle.git / a49f60fee74dfa1caed41ca2e010bc273a6c12cd
commita49f60fee74dfa1caed41ca2e010bc273a6c12cd[log] [tgz]
authorTill Rathmann <till.rathmann@gmx.de>Mon Aug 20 14:03:06 2018
committerCommit Bot <commit-bot@chromium.org>Mon Sep 17 17:55:05 2018
treeb95b1a87a64d220d607a43cdc2ddc988b244dc5f
parent57ff6f95f143bd65a0c3d12d64773f274b9935f4 [diff]
D3D11: Resolve multisampled EGL surfaces at eglSwapBuffers

Support for multisampled EGL surfaces was added in
151d5de (2017-04-13, "Enable MSAA for texture client buffers")
but the resolve step was missing because it was not needed for
EGL_ANGLE_d3d_texture_client_buffer. However, when using MSAA
with a regular EGL surface then resolving is required to get
an antialiased image.
Please note that the new test case CreateSurfaceWithMSAA does
actually not test the newly added resolve step because the
resolve is performed by the glReadPixels() call there.
So it is rather a general test if MSAA works for EGL surfaces.

TEST=angle_end2end_tests.EGLSurfaceTest.CreateSurfaceWithMSAA

Change-Id: Ieafd6877fa510d5e16c0d9c6872c31fa73efa86c
Reviewed-on: https://chromium-review.googlesource.com/1181138
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>
7 files changed
tree: b95b1a87a64d220d607a43cdc2ddc988b244dc5f
  1. build_overrides/
  2. doc/
  3. extensions/
  4. gni/
  5. include/
  6. infra/
  7. samples/
  8. scripts/
  9. src/
  10. third_party/
  11. tools/
  12. util/
  13. .clang-format
  14. .gitattributes
  15. .gitignore
  16. .gn
  17. AndroidManifest.xml
  18. AUTHORS
  19. BUILD.gn
  20. codereview.settings
  21. CONTRIBUTORS
  22. DEPS
  23. dotfile_settings.gni
  24. LICENSE
  25. OWNERS
  26. README.chromium
  27. README.md
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 9Direct3D 11Desktop GLGL ESVulkan
OpenGL ES 2.0completecompletecompletecompletein progress
OpenGL ES 3.0completecompletein progressnot started
OpenGL ES 3.1not startedin progressin progressnot started

Platform support via backing renderers

Direct3D 9Direct3D 11Desktop GLGL ESVulkan
Windowscompletecompletecompletecompletein progress
Linuxcompletein progress
Mac OS Xin progress
Chrome OScompleteplanned
Androidcompletein 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