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  • Hash : ea0b1b7b
    Author : Brian Ho
    Date : 2023-05-19T15:26:50

    Selectively advertise base vertex and instance fns
    
    On newer Mali GPUs (Valhall), the glDraw*BaseVertex* implementations
    seem to be buggy and cause noticable artifacts. Chrome uses the
    presence of baseVertexBaseInstanceANGLE and baseInstanceEXT
    extensions to determine whether it can draw with a base vertex or to
    fallback to manually offsetting the vbo.
    
    This CL disables these extensions on Mali Valhall so that Chrome
    takes the fallback path instead to fix the visual artifacts.
    
    Bug: b/280931795
    Change-Id: Ic27e37465283ca3338747b53aa7888c7eba4b7b8
    Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4549682
    Reviewed-by: Geoff Lang <geofflang@chromium.org>
    Commit-Queue: Geoff Lang <geofflang@chromium.org>
    

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

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