Name

    ANGLE_context_virtualization

Name Strings

    EGL_ANGLE_context_virtualization

Contributors

    Geoff Lang, Google

Contacts

    Geoff Lang, Google (geofflang 'at' chromium 'dot' org)

Status

    Draft

Version

    Version 2, 2021-09-17

Number

    EGL Extension XXX

Extension Type

    EGL display extension

Dependencies

    None

Overview

    This extension allows the client to create contexts that are internally
    virtualized on a single native context for performance or stability.

New Types

    None

New Procedures and Functions

    None

New Tokens

    Accepted as an attribute name in the <attrib_list> argument of
    eglCreateContext:

        EGL_CONTEXT_VIRTUALIZATION_GROUP_ANGLE    0x3481

Additions to the EGL Specification

    None.

New Behavior

    To request that a context should be part of a virtualization group,
    use the attribute EGL_CONTEXT_VIRTUALIZATION_GROUP_ANGLE. EGL_DONT_CARE
    can be used to allow the implementation to decide what virtualization
    group is used. The default value of EGL_CONTEXT_VIRTUALIZATION_GROUP_ANGLE
    is EGL_DONT_CARE. It is undefined behaviour to have multiple contexts from
    the same virtualization group current different threads simultaneously.

Issues

    None

Revision History

    Version 1, 2018-06-11 (Geoff Lang)
      - Initial draft
    Version 2, 2021-09-17 (Geoff Lang)
      - Change to context creation attribute