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PojavLauncherTeam
GitHub Repository: PojavLauncherTeam/angle
 Path: blob/main_old/extensions/EGL_ANGLE_device_metal.txt
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Name

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    ANGLE_device_metal

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Name Strings

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    EGL_ANGLE_device_metal

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Contributors

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    Le Hoang Quyen

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Contact

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

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    Le Hoang Quyen (lehoangq 'at' gmail.com)

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Status

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    Draft

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Version

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    Version 1, Jul 19, 2020

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Number

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    EGL Extension #XXX

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Extension Type

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    EGL device extension

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Dependencies

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    This extension is written against the language of EGL 1.5 as

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    modified by EGL_EXT_device_query.

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    EGL_EXT_device_query is required.

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Overview

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    ANGLE has the ability to run GPU commands on a metal device.

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    This extension defines a mapping from an EGL device to a metal

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    device, after it's queried from an EGL display.

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IP Status

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    No known claims.

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New Types

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    None.

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New Procedures and Functions

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    None.

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New Tokens

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    Accepted as a queried <attribute> in eglQueryDeviceAttribEXT:

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        EGL_METAL_DEVICE_ANGLE              0x34A6

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Add a new section 2.1.3 (Metal Devices) after 2.1.2 (Devices)

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    Somewhat analogous to an EGL device, a Metal device establishes a

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    namespace for Metal operations. In the Metal APIs, such devices are

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    represented by pointers. For more details, see the Metal

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    documentation.

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Changes to section 3.2 (Devices)

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    Replace the paragraph immediately following the prototype for

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    eglQueryDeviceAttribEXT:

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    <attribute> may be EGL_METAL_DEVICE_ANGLE.

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    On success, EGL_TRUE is returned, and a valid MTLDevice pointer

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    corresponding to the EGL device is returned in <value>. This handle

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    is compatible with Metal API functions. If the EGL device is not currently

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    associated with a Metal device and <attribute> is EGL_METAL_DEVICE_ANGLE,

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    EGL_BAD_ATTRIBUTE is returned, and <value> is left unchanged.

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Issues

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    None

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Revision History

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    Version 1, Jul 19, 2020 (Le Hoang Quyen)

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        - Initial Draft

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