kc3-lang/angle

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  • Hash : e24f4519
    Author : Igor Nazarov
    Date : 2023-01-19T02:30:39 

    Vulkan: Add externalFence into submitCommands()

Currently one-off fence in the `queueSubmitOneOff()` is used only in
`SyncHelperNativeFence::initializeWithFd()` to submit external fence.
Other `queueSubmitOneOff()` calls may use `QueueSerial` instead of a
fence.

Providing `fence` into `queueSubmitOneOff()` prevents tracking that
submission with `QueueSerial`. Therefore using `mUse` to collecting
`mFenceWithFd` as garbage will not work as intended.

This CL removes `fence` from `queueSubmitOneOff()` and adds
optional `externalFence` into `submitCommands()` instead.
Providing `externalFence` will cause additional `vkQueueSubmit()` call:
- first submission will submit everything as usual except using
  the `externalFence`.
- second, will only submit internal `CommandQueue` fence for
  `QueueSerial` tracking.

As the result of this CL, call to `initializeWithFd()` will always
produce two (2) `vkQueueSubmit()` calls. Previously it may be one (1) or
two (2) submissions. Future CL will reduce submission count to one (1).

If add additional submission into `queueSubmitOneOff()` instead of
`submitCommands()`, then maximum number of submissions will be
three (3).

Bug: angleproject:8117
Change-Id: I6f1ec12682aaab71bfc871e665fec2659df96b26
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4392877
Reviewed-by: Charlie Lao <cclao@google.com>
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Commit-Queue: Igor Nazarov <i.nazarov@samsung.com>

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    Git SSH git@git.kmx.io:kc3-lang/angle.git
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    Description

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

    Homepage

    Github
    Users
    		 kc3_lang_org thodg_w www_kmx_io thodg_l thodg thodg_m
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  • 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 in progress

    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
    iOS complete
    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 1.5 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

kmx.io     mail     discord kmxgit v0.4.0