Name

    ANGLE_platform_angle_device_type_swiftshader

Name Strings

    EGL_ANGLE_platform_angle_device_type_swiftshader

Contributors

    Jamie Madill, Google

Contacts

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

Status

    Draft

Version

    Version 1, 2019-08-24

Number

    EGL Extension XXX

Extension Type

    EGL client extension

Dependencies

    Requires EGL_ANGLE_platform_angle_vulkan.

Overview

    This extension enables choosing the SwiftShader Vulkan implementation
    when it is available.

New Types

    None

New Procedures and Functions

    None

New Tokens

    Accepted as values for the EGL_PLATFORM_ANGLE_TYPE_ANGLE attribute:

        EGL_PLATFORM_ANGLE_DEVICE_TYPE_SWIFTSHADER_ANGLE     0x3487

Additions to the EGL Specification

    None.

New Behavior

    When calling eglGetPlatformDisplay:

    To request a SwiftShader-backed Vulkan implementation with ANGLE, the value
    of EGL_PLATFORM_ANGLE_TYPE_ANGLE should be EGL_PLATFORM_ANGLE_TYPE_VULKAN_ANGLE
    and the value of EGL_PLATFORM_ANGLE_DEVICE_TYPE_ANGLE should be
    EGL_PLATFORM_ANGLE_DEVICE_TYPE_SWIFTSHADER_ANGLE.

    If EGL_PLATFORM_ANGLE_DEVICE_TYPE_ANGLE is
    EGL_PLATFORM_ANGLE_DEVICE_TYPE_SWIFTSHADER_ANGLE and
    EGL_PLATFORM_ANGLE_TYPE_ANGLE is not
    EGL_PLATFORM_ANGLE_TYPE_VULKAN_ANGLE then an EGL_BAD_ATTRIBUTE
    error is generated and EGL_NO_DISPLAY is returned.

Issues

    None

Revision History

    Version 1, 2019-08-29 (Jamie Madill)
      - Initial draft