SDL
2.0
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The global interface exposing sub-surface compositing capabilities. A wl_surface, that has sub-surfaces associated, is called the parent surface. Sub-surfaces can be arbitrarily nested and create a tree of sub-surfaces. More...
Macros | |
#define | WL_SUBCOMPOSITOR_DESTROY_SINCE_VERSION 1 |
#define | WL_SUBCOMPOSITOR_GET_SUBSURFACE_SINCE_VERSION 1 |
Functions | |
static void | wl_subcompositor_set_user_data (struct wl_subcompositor *wl_subcompositor, void *user_data) |
static void * | wl_subcompositor_get_user_data (struct wl_subcompositor *wl_subcompositor) |
static void | wl_subcompositor_destroy (struct wl_subcompositor *wl_subcompositor) |
static struct wl_subsurface * | wl_subcompositor_get_subsurface (struct wl_subcompositor *wl_subcompositor, struct wl_surface *surface, struct wl_surface *parent) |
The global interface exposing sub-surface compositing capabilities. A wl_surface, that has sub-surfaces associated, is called the parent surface. Sub-surfaces can be arbitrarily nested and create a tree of sub-surfaces.
The root surface in a tree of sub-surfaces is the main surface. The main surface cannot be a sub-surface, because sub-surfaces must always have a parent.
A main surface with its sub-surfaces forms a (compound) window. For window management purposes, this set of wl_surface objects is to be considered as a single window, and it should also behave as such.
The aim of sub-surfaces is to offload some of the compositing work within a window from clients to the compositor. A prime example is a video player with decorations and video in separate wl_surface objects. This should allow the compositor to pass YUV video buffer processing to dedicated overlay hardware when possible.
#define WL_SUBCOMPOSITOR_DESTROY_SINCE_VERSION 1 |
Definition at line 5318 of file wayland-client-protocol.h.
#define WL_SUBCOMPOSITOR_GET_SUBSURFACE_SINCE_VERSION 1 |
Definition at line 5322 of file wayland-client-protocol.h.
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inlinestatic |
Informs the server that the client will not be using this protocol object anymore. This does not affect any other objects, wl_subsurface objects included.
Definition at line 5352 of file wayland-client-protocol.h.
References WL_SUBCOMPOSITOR_DESTROY.
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inlinestatic |
Create a sub-surface interface for the given surface, and associate it with the given parent surface. This turns a plain wl_surface into a sub-surface.
The to-be sub-surface must not already have another role, and it must not have an existing wl_subsurface object. Otherwise a protocol error is raised.
Definition at line 5372 of file wayland-client-protocol.h.
References NULL, WL_SUBCOMPOSITOR_GET_SUBSURFACE, and wl_subsurface_interface.
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inlinestatic |
Definition at line 5333 of file wayland-client-protocol.h.
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inlinestatic |
Definition at line 5326 of file wayland-client-protocol.h.