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Name
ANGLE_display_power_preference
Name Strings
EGL_ANGLE_display_power_preference
Contributors
Kenneth Russell
Jonah Ryan-Davis
Contacts
Kenneth Russell, Google Inc. (kbr 'at' google.com)
Jonah Ryan-Davis, Google Inc. (jonahr 'at' google.com)
Status
Draft
Version
Version 1, Oct 20, 2021
Number
EGL Extension #??
Extension Type
EGL client extension
Dependencies
This extension is written against the wording of the EGL 1.4
Specification.
Overview
This extension allows selection of the high- or low-power GPU on
dual-GPU systems, specifically on macOS.
New Types
None
New Tokens
Accepted as an attribute name in the <attrib_list> argument to
eglGetPlatformDisplayEXT:
EGL_POWER_PREFERENCE_ANGLE 0x3482
Accepted as an attribute value in the <attrib_list> argument to
eglGetPlatformDisplayEXT:
EGL_LOW_POWER_ANGLE 0x0001
EGL_HIGH_POWER_ANGLE 0x0002
Additions to the EGL 1.4 Specification
Add the following to section 3.7.1 "Creating Rendering Contexts":
EGL_POWER_PREFERENCE_ANGLE indicates whether the display should be
created on the integrated (low-power) or discrete (high-power) GPU
on dual-GPU systems. EGL_POWER_PREFERENCE_ANGLE is only a legal
display creation attribute when the EGL_ANGLE_power_preference
extension is advertised. The valid values for this attribute are
EGL_LOW_POWER_ANGLE and EGL_HIGH_POWER_ANGLE. If this extension is
advertised and this display creation attribute is not specified,
the default value is EGL_LOW_POWER_ANGLE.
Issues
None yet.
Revision History
Rev. Date Author Changes
---- ------------- --------- ----------------------------------------
1 Oct 20, 2021 jonahr Extension based off
EGL_ANGLE_power_preference
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