зеркало из https://github.com/AvaloniaUI/angle.git
96 строки
2.0 KiB
Plaintext
96 строки
2.0 KiB
Plaintext
Name
|
|
|
|
ANGLE_vulkan_display
|
|
|
|
Name Strings
|
|
|
|
EGL_ANGLE_vulkan_display
|
|
|
|
Contributors
|
|
|
|
Xiaoxuan Liu, Arm Ltd.
|
|
Sunny Sun, Arm Ltd.
|
|
|
|
Contacts
|
|
|
|
Xiaoxuan Liu, Arm Ltd. (xiaoxuan 'dot' liu 'at' arm 'dot' com)
|
|
|
|
Status
|
|
|
|
Draft
|
|
|
|
Version
|
|
|
|
Version 1, 2020-10-29
|
|
|
|
Number
|
|
|
|
EGL Extension XXX
|
|
|
|
Extension Type
|
|
|
|
EGL client extension
|
|
|
|
Dependencies
|
|
|
|
Requires EGL_EXT_platform_angle_vulkan.
|
|
|
|
Overview
|
|
|
|
This extension allows ANGLE to use simple display mode through
|
|
VK_KHR_display without native platform support (e.g. X11, GBM).
|
|
The EGLSurfaces to be created from native types only contain the
|
|
basic width and height info.
|
|
|
|
New Types
|
|
|
|
The basic structure to represent a display window, used by vulkan
|
|
backend to create valid display with VK_KHR_display.
|
|
|
|
typedef struct displayWindow
|
|
{
|
|
khronos_uint16_t width;
|
|
khronos_uint16_t height;
|
|
} DisplayWindow;
|
|
|
|
New Procedures and Functions
|
|
|
|
None
|
|
|
|
New Tokens
|
|
|
|
Accepted as values for the EGL_PLATFORM_ANGLE_NATIVE_PLATFORM_TYPE_ANGLE
|
|
attribute:
|
|
|
|
EGL_PLATFORM_VULKAN_DISPLAY_MODE_SIMPLE_ANGLE 0x34A4
|
|
EGL_PLATFORM_VULKAN_DISPLAY_MODE_HEADLESS_ANGLE 0x34A5
|
|
|
|
Additions to the EGL Specification
|
|
|
|
None
|
|
|
|
New Behavior
|
|
|
|
To obtain an simple EGLDisplay backed by a ANGLE vulkan with
|
|
VK_KHR_display, request a display that is backed by a Vulkan driver
|
|
through EGL_ANGLE_platform_angle_vulkan. And the value of attribute
|
|
EGL_PLATFORM_ANGLE_NATIVE_PLATFORM_TYPE_ANGLE should be
|
|
EGL_PLATFORM_VULKAN_DISPLAY_MODE_SIMPLE_ANGLE or
|
|
EGL_PLATFORM_VULKAN_DISPLAY_MODE_HEADLESS_ANGLE.
|
|
|
|
If an EGLDisplay is backed by ANGLE vulkan VK_KHR_display and the
|
|
value of attribute EGL_PLATFORM_ANGLE_NATIVE_PLATFORM_TYPE_ANGLE is
|
|
set but neither EGL_PLATFORM_VULKAN_DISPLAY_MODE_SIMPLE_ANGLE or
|
|
EGL_PLATFORM_VULKAN_DISPLAY_MODE_HEADLESS_ANGLE, then EGL_NO_DISPLAY
|
|
should be returned.
|
|
|
|
Issues
|
|
|
|
None
|
|
|
|
Revision History
|
|
|
|
Version 1, 2020-10-29 (Xiaoxuan Liu)
|
|
- Initial draft
|
|
|