Name

    EXT_device_type

Name Strings

    EGL_EXT_device_type

Contributors

    Simon Ser

Contacts

    Simon Ser (contact@emersion.fr)

Status

    Draft

Version

    Version 1 - March 12th, 2026

Number

    EGL Extension #155

Extension Type

    EGL device extension

Dependencies

    Written based on the wording of the EGL 1.5 specification.

    EGL_EXT_device_query is required.

Overview

    This extension advertises the device type of a given EGLDeviceEXT object.

New Types

    None

New Procedures and Functions

    None

New Tokens

    Accepted as the <name> parameter of eglQueryDeviceAttribEXT

        EGL_DEVICE_TYPE_EXT                 0x3590

    Returned as the <value> parameter of eglQueryDeviceAttribEXT

        EGL_DEVICE_TYPE_OTHER_EXT           0x3591
        EGL_DEVICE_TYPE_INTEGRATED_GPU_EXT  0x3592
        EGL_DEVICE_TYPE_DISCRETE_GPU_EXT    0x3593
        EGL_DEVICE_TYPE_CPU_EXT             0x3594

Changes to section 3.2 (Devices)

    Add the following paragraph to the description of eglQueryDeviceAttribEXT:

    To obtain the device type of an EGLDeviceEXT, call eglQueryDeviceAttribEXT
    with <name> set to EGL_DEVICE_TYPE_EXT. The function will return one of the
    following values:

        EGL_DEVICE_TYPE_OTHER_EXT
            The device does not match any other available types.
        EGL_DEVICE_TYPE_INTEGRATED_GPU_EXT
            The device is typically one embedded in or tightly coupled with the
            host.
        EGL_DEVICE_TYPE_DISCRETE_GPU_EXT
            The device is typically a separate processor connected to the host
            via an interlink.
        EGL_DEVICE_TYPE_CPU_EXT
            The device is typically running on the same processors as the host.

Issues

    None

Revision History:

    #1  (March 12th, 2026) Simon Ser
        - Initial draft.