EGL_ANGLE_platform_angle_metal.txt

Name

    ANGLE_platform_angle_metal

Name Strings

    EGL_ANGLE_platform_angle_metal

Contributors

    Jamie Madill, Google

Contacts

    Jamie Madill, Google (jmadill 'at' google 'dot' com)

Status

    Draft

Version

    Version 2, 2019-10-09

Number

    EGL Extension XXX

Extension Type

    EGL client extension

Dependencies

    Requires ANGLE_platform_angle.

Overview

    This extension enables selection of Metal display types.

New Types

    None

New Procedures and Functions

    None

New Tokens

    Accepted as values for the EGL_PLATFORM_ANGLE_TYPE_ANGLE attribute:

        EGL_PLATFORM_ANGLE_TYPE_METAL_ANGLE               0x3489

Additions to the EGL Specification

    None.

New Behavior

    To request a display that is backed by a Metal driver, the value of
    EGL_PLATFORM_ANGLE_TYPE_ANGLE should be
    EGL_PLATFORM_ANGLE_TYPE_METAL_ANGLE.

Issues

    1) Should the application be able to choose a specific version of Metal?

        RESOLVED: No, use the default returned by the system. It doesn't
        seem like recommended practice to choose a Metal version when
        initializing a Metal device.

Revision History

    Version 1, 2019-10-09 (Jamie Madill)
      - Initial draft