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chromium / angle / angle / refs/heads/chromium/5345
commitc19ec9481a70f42fea14c908361460ac0f4a3557[log] [tgz]
authorAmirali Abdolrashidi <abdolrashidi@google.com>Tue Aug 23 17:43:59 2022
committerAngle LUCI CQ <angle-scoped@luci-project-accounts.iam.gserviceaccount.com>Thu Oct 06 19:39:23 2022
tree506dd8155a4007bb8b63943471de944a506b4eec
parent4ebdac790c76b65abf5703bcef9482c638076195 [diff]
Vulkan: Implement imageless framebuffers

* Added the attachment image and create info objects to be used
  for imageless framebuffers created in getFramebuffer().

* New helper class for framebuffers in RenderPassCommandBufferHelper:
  MaybeImagelessFramebuffer, which includes a framebuffer object, if
  the framebuffer is imageless, and the image views. This is to make
  sure that the args for render pass begin info will be correctly set
  up according to the status of the used framebuffer.

* Refactored the collection of attachments in getFramebuffer() into
  a new function, getAttachmentsAndImagesFromRenderTargets(). It also
  returns their corresponding ImageHelper* objects used to create the
  framebuffer (from their image properties).

* New struct: RenderTargetInfo; which keeps track of render targets
  and whether resolve image should be used for the render pass in the
  form of the enum class RenderTargetImage.

* Added a new arg to getFramebuffer(): resolveRenderTargetIn; to use
  when there is a valid resolveImageViewIn.

* Without using the framebuffer cache, we would require to handle
  the framebuffer destruction by adding it to the garbage instead
  of releasing it. For example, FramebufferVk::destroy() now adds
  mCurrentFramebuffer to the garbage.

* Added new framebuffer unit tests.

  * Added tests where two textures with different attributes are bound
    to the same framebuffer before drawing, one after another.

  * Added test where a blit occurs from a multisample texture into a
    non-zero level of a resolve texture, each bound to a separate FBO.

* Added a new perf test to compare performance for enabled imageless
  framebuffers vs disabled. (Credit: cclao)

Bug: angleproject:7553
Change-Id: Iacdbd73aaa01cbb0e37abf01ae4892bdfdd4b12f
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3827644
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Commit-Queue: Amirali Abdolrashidi <abdolrashidi@google.com>
Reviewed-by: Charlie Lao <cclao@google.com>
15 files changed
tree: 506dd8155a4007bb8b63943471de944a506b4eec
  1. android/
  2. build_overrides/
  3. doc/
  4. extensions/
  5. gni/
  6. include/
  7. infra/
  8. samples/
  9. scripts/
  10. src/
  11. third_party/
  12. tools/
  13. util/
  14. .clang-format
  15. .gitattributes
  16. .gitignore
  17. .gn
  18. .style.yapf
  19. .vpython
  20. .vpython3
  21. .yapfignore
  22. additional_readme_paths.json
  23. Android.mk
  24. AUTHORS
  25. BUILD.gn
  26. codereview.settings
  27. CONTRIBUTORS
  28. DEPS
  29. DIR_METADATA
  30. dotfile_settings.gni
  31. LICENSE
  32. OWNERS
  33. PRESUBMIT.py
  34. README.chromium
  35. README.md
  36. WATCHLISTS
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 9Direct3D 11Desktop GLGL ESVulkanMetal
OpenGL ES 2.0completecompletecompletecompletecompletecomplete
OpenGL ES 3.0completecompletecompletecompletein progress
OpenGL ES 3.1incompletecompletecompletecomplete
OpenGL ES 3.2in progressin progressin progress

Platform support via backing renderers

Direct3D 9Direct3D 11Desktop GLGL ESVulkanMetal
Windowscompletecompletecompletecompletecomplete
Linuxcompletecomplete
Mac OS Xcompletein progress
iOSin progress
Chrome OScompleteplanned
Androidcompletecomplete
GGP (Stadia)complete
Fuchsiacomplete

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