kc3-lang/angle

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    Commit

  • Hash : 2ee295b4
    Author : Amirali Abdolrashidi
    Date : 2024-02-15T11:27:39 

    Vulkan: Add per-level image update tracker

* Add a per-level image write tracker to ImageHelper.

  * It tracks the updates scheduled for different parts of the image.
    Within each level, it also tracks different layers, currently up
    to 64.

    * kMaxParallelSubresourceUpload renamed to kMaxParallelLayerWrites;
      moved to vk_helper header.

  * It is reset when a barrier is issued for the image.

* Modified ImageHelper::recordWriteBarrier().

  * Added isWriteBarrierNecessary().

  * Now it checks the added writes for the image. It will no longer
    issue a barrier if the image is in the same layout and there is
    no write to a part of the image to which was previously written.

* Added ReadImageSubresources to CommandBufferAccess.

  * It is used for layouts that allow both reading and writing to the
    image (including self-copy):
    * TransferSrcDst (used in CopyImageSubData)
    * ComputeShaderWrite (used in compute-based mipmap generation)

  * CommandBufferImageWrite -> CommandBufferImageSubresourceAccess
  * Updated onImageSelfCopy() args to include read subresource data.

* Improves gpu_time for TextureUploadETC2TranscodingBenchmark perf test
  * Windows/NVIDIA: ~180609 ns -> ~62669 ns (~2.88x)
  * Linux/NVIDIA:   ~157283 ns -> ~93360 ns (~1.68x)
  * Windows/Intel:   ~72297 ns -> ~57153 ns (~1.27x)

* Added a test to show that self-copy for a write-after-read works.
  * ArraySelfCopyImageSubDataWithWriteAfterRead
  * (ArraySelfCopyImageSubData covers RAW hazards; renamed)

Bug: b/308455694
Change-Id: I5cef296d991ce6ec02792edc3ffc5cc4994831e1
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5301855
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Charlie Lao <cclao@google.com>
Commit-Queue: Amirali Abdolrashidi <abdolrashidi@google.com>

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  • Git HTTP https://git.kmx.io/kc3-lang/angle.git
    Git SSH git@git.kmx.io:kc3-lang/angle.git
    Public access ? public
    Description

    A conformant OpenGL ES implementation for Windows, Mac, Linux, iOS and Android.

    Homepage

    Github
    Users
    		 thodg_m kc3_lang_org thodg_w www_kmx_io thodg thodg_l
    Tags

  • 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 complete
    OpenGL ES 3.1 incomplete complete complete complete
    OpenGL ES 3.2 in progress in progress complete

    Additionally, OpenGL ES 1.1 is implemented in the front-end using OpenGL ES 3.0 features. This version of the specification is thus supported on all platforms specified above that support OpenGL ES 3.0 with known issues.

    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 complete [1]
    iOS complete [2]
    Chrome OS complete planned
    Android complete complete
    GGP (Stadia) complete
    Fuchsia complete

    [1] Metal is supported on macOS 10.14+

    [2] Metal is supported on iOS 12+

    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)
    • OpenGL ES 3.2: ANGLE 2.1.2.21688.59f158c1695f (Sept, 2023)

    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

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