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Name
WL_bind_wayland_display
Name Strings
EGL_WL_bind_wayland_display
Contact
Kristian Høgsberg <krh@bitplanet.net>
Benjamin Franzke <benjaminfranzke@googlemail.com>
Status
Proposal
Version
Version 1, March 1, 2011
Number
EGL Extension #not assigned
Dependencies
Reguires EGL 1.4 or later. This extension is written against the
wording of the EGL 1.4 specification.
EGL_KHR_base_image is required.
Overview
This extension provides entry points for binding and unbinding the
wl_display of a Wayland compositor to an EGLDisplay. Binding a
wl_display means that the EGL implementation should provide one or
more interfaces in the Wayland protocol to allow clients to create
wl_buffer objects. On the server side, this extension also
provides a new target for eglCreateImageKHR, to create an EGLImage
from a wl_buffer
Adding a implementation specific wayland interface, allows the
EGL implementation to define specific wayland requests and events,
needed for buffer sharing in a EGL wayland platform.
IP Status
Open-source; freely implementable.
New Procedures and Functions
EGLBoolean eglBindWaylandDisplayWL(EGLDisplay dpy,
struct wl_display *display);
EGLBoolean eglUnbindWaylandDisplayWL(EGLDisplay dpy,
struct wl_display *display);
New Tokens
Accepted as <target> in eglCreateImageKHR
EGL_WAYLAND_BUFFER_WL 0x31D5
Additions to the EGL 1.4 Specification:
To bind a server side wl_display to an EGLDisplay, call
EGLBoolean eglBindWaylandDisplayWL(EGLDisplay dpy,
struct wl_display *display);
To unbind a server side wl_display from an EGLDisplay, call
EGLBoolean eglUnbindWaylandDisplayWL(EGLDisplay dpy,
struct wl_display *display);
eglBindWaylandDisplayWL returns EGL_FALSE when there is already a
wl_display bound to EGLDisplay otherwise EGL_TRUE.
eglUnbindWaylandDisplayWL returns EGL_FALSE when there is no
wl_display bound to the EGLDisplay currently otherwise EGL_TRUE.
Import a wl_buffer by calling eglCreateImageKHR with
wl_buffer as EGLClientBuffer, EGL_WAYLAND_BUFFER_WL as the target,
and an empty attribute_list.
Issues
Revision History
Version 1, March 1, 2011
Initial draft (Benjamin Franzke)
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