Edit

kc3-lang/angle

Branch :

  • Show log

    Commit

  • Author : Alexis Hetu
    Date : 2020-09-02 19:21:21
    Hash : 36b884e6
    Message : Fix undefined behavior in minifloat conversion This cl applies the same fix already applied in SwiftShader here: https://swiftshader-review.googlesource.com/c/SwiftShader/+/48069 Original description: Shifting a 32-bit value by 32 or more is undefined behavior in C++. This previously happened in this code when converting a 32-bit float value to an 11- or 10-bit minifloat which is too small to be represented as a denormal, and should produce 0 instead. Instead of going through this arithmetic for denormals, just test whether the input value is too small to produce a valid denormal, and return 0 instead. Bug: chromium:1117433 Change-Id: I227c0e4c53000df6d9260fee364351a300b113a2 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2391764 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Alexis Hétu <sugoi@chromium.org>

  • Properties
  • Git HTTP https://git.kmx.io/kc3-lang/angle.git
    Git SSH git@git.kmx.io:kc3-lang/angle.git
    Public ? true
    Name
    Description

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

    Homepage

    Github
    Users thodg git_deploy kc3_lang_org thodg_l thodg_m thodg_w www_kmx_io
    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 | in progress | | OpenGL ES 3.0 | | complete | complete | complete | complete | | | OpenGL ES 3.1 | | in progress | 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 | | | | | in progress | |

    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