Functions to manipulate wayland subsurfaces, using Ecore_Wl2_Subsurface.

This API is intended to expose Wayland subsurface functionality, although it should not be necessary for most applications to use it, as soon as we have means to make Evas automatically switch Evas images to use subsurfaces.

It can/should be used, for instance, when subsurfaces are needed to be not in sync with the main window surface.

Functions
Ecore_Wl2_Subsurface *	ecore_wl2_subsurface_new (Ecore_Wl2_Window *window)
	Create and return a new subsurface.
void	ecore_wl2_subsurface_del (Ecore_Wl2_Subsurface *subsurface)
	Destroy the given subsurface, as well as the surface associated with it.
void	ecore_wl2_subsurface_sync_set (Ecore_Wl2_Subsurface *subsurface, Eina_Bool sync)
	Enables or disables sub-surface synchronization.
void *	ecore_wl2_subsurface_native_surface_get (Ecore_Wl2_Subsurface *subsurface)
	Get the wl_surface for this subsurface.
void	ecore_wl2_subsurface_place_surface_above (Ecore_Wl2_Subsurface subsurface, Ecore_Wl2_Subsurface other)
	Place subsurface on layer above a reference subsurface.
void	ecore_wl2_subsurface_place_surface_below (Ecore_Wl2_Subsurface subsurface, Ecore_Wl2_Subsurface other)
	Place subsurface on layer below a reference subsurface.
Eina_Bool	ecore_wl2_subsurface_video_surface_prepare (Ecore_Wl2_Subsurface *subsurface)
	Prepare video surface for a given subsurface.
Eina_Bool	ecore_wl2_subsurface_video_surface_destination_set (Ecore_Wl2_Subsurface *subsurface, int x, int y, int w, int h)
	Set destination area of video surface for a given subsurface.
Eina_Bool	ecore_wl2_subsurface_video_surface_rotation_set (Ecore_Wl2_Subsurface *subsurface, Ecore_Wl2_Subsurface_Rotation rotation)
	Set video surface rotation for a given subsurface.
void	ecore_wl2_subsurface_aux_hint_set (Ecore_Wl2_Subsurface subsurface, const char hint, const char *val)
	Set an auxiliary hint on a given subsurface.
Typedefs
typedef enum _Ecore_Wl2_Subsurface_Rotation	Ecore_Wl2_Subsurface_Rotation
	Defines the rotation types of video surface.

Typedef Documentation

typedef enum _Ecore_Wl2_Subsurface_Rotation Ecore_Wl2_Subsurface_Rotation

Defines the rotation types of video surface.

See also:: ecore_wl2_subsurface_video_surface_rotation_set

Since :: 6.0

Enumeration Type Documentation

enum _Ecore_Wl2_Subsurface_Rotation

Defines the rotation types of video surface.

See also:: ecore_wl2_subsurface_video_surface_rotation_set

Since :: 6.0

Enumerator:

ECORE_WL2_SUBSURFACE_ROTATION_NORMAL	no rotation
ECORE_WL2_SUBSURFACE_ROTATION_90	90 degree counter-clockwise
ECORE_WL2_SUBSURFACE_ROTATION_180	180 degree counter-clockwise
ECORE_WL2_SUBSURFACE_ROTATION_270	270 degree counter-clockwise
ECORE_WL2_SUBSURFACE_ROTATION_FLIPPED	180 degree flip around a vertical axis
ECORE_WL2_SUBSURFACE_ROTATION_FLIPPED_90	flip and rotate 90 degree counter-clockwise
ECORE_WL2_SUBSURFACE_ROTATION_FLIPPED_180	flip and rotate 180 degree counter-clockwise
ECORE_WL2_SUBSURFACE_ROTATION_FLIPPED_270	flip and rotate 270 degree counter-clockwise

Function Documentation

void ecore_wl2_subsurface_aux_hint_set	(	Ecore_Wl2_Subsurface *	subsurface,
		const char *	hint,
		const char *	val
	)

Set an auxiliary hint on a given subsurface.

Parameters:

subsurface	The subsurface to set an auxiliary hint
hint	The auxiliary hint string
val	The value string

Since :: 6.0

void ecore_wl2_subsurface_del ( Ecore_Wl2_Subsurface * subsurface )

Destroy the given subsurface, as well as the surface associated with it.

Parameters:

subsurface the subsurface

Since (EFL) :: 1.17

Since :: 6.0

void* ecore_wl2_subsurface_native_surface_get ( Ecore_Wl2_Subsurface * subsurface )

Get the wl_surface for this subsurface.

Parameters:

subsurface the subsurface

Returns:: the wl_surface associated with this subsurface, or NULL on failure, provided as void type

Since :: 6.0

Ecore_Wl2_Subsurface* ecore_wl2_subsurface_new ( Ecore_Wl2_Window * window )

Create and return a new subsurface.

Create a new surface (and subsurface interface), with the parent surface being the one associated with the given window.

Parameters:

window The window. It must be visible, otherwise there will be no surface created for it yet.

Returns:: the allocated and initialized Ecore_Wl2_Subsurface object, or NULL on failure

Since (EFL) :: 1.17

Since :: 6.0

void ecore_wl2_subsurface_place_surface_above	(	Ecore_Wl2_Subsurface *	subsurface,
		Ecore_Wl2_Subsurface *	other
	)

Place subsurface on layer above a reference subsurface.

Moves the subsurface to just above the reference subsurface, changing the z-order. The reference subsurface must be either a sibling or parent surface, else a protocol error will be generated.

Parameters:

subsurface	the subsurface
other	the sibling reference subsurface, or NULL for parent surface

Since :: 6.0

void ecore_wl2_subsurface_place_surface_below	(	Ecore_Wl2_Subsurface *	subsurface,
		Ecore_Wl2_Subsurface *	other
	)

Place subsurface on layer below a reference subsurface.

See ecore_wl2_subsurface_place_surface_above.

Parameters:

subsurface	the subsurface
other	the sibling reference subsurface, or NULL for parent surface

Since :: 6.0

void ecore_wl2_subsurface_sync_set	(	Ecore_Wl2_Subsurface *	subsurface,
		Eina_Bool	sync
	)

Enables or disables sub-surface synchronization.

When synchronization is enabled, surface commits on the subsurface will be cached and only applied when the parent surface's state is applied. This ensures atomic updates of the parent and all of its synchronized sub-surfaces.

When synchronization is disabled, commits will apply to the pending state directly without caching, just like a normal wl_surface. If there are already cached events when this is set, those events are applied simultaneously with the desync event.

Attempting to enable synchronization when the subsurface already thinks it's sync'd, or desync when it believes its desync'd, will be trivially ignored and will not generate a Wayland event.

See Wayland's set_desync documentation for further details and exceptional cases.

Parameters:

subsurface	the subsurface
sync	true to enable synchronization, false to desynchronize

Since (EFL) :: 1.17

Since :: 6.0

Eina_Bool ecore_wl2_subsurface_video_surface_destination_set	(	Ecore_Wl2_Subsurface *	subsurface,
		int	x,
		int	y,
		int	w,
		int	h
	)

Set destination area of video surface for a given subsurface.

Parameters:

subsurface	The subsurface to set destination area of video surface
x	X position of destination area
y	Y position of destination area
w	Width of destination area
h	Height of destination area

Returns:: EINA_TRUE on success, EINA_FALSE otherwise

Since :: 6.0

Eina_Bool ecore_wl2_subsurface_video_surface_prepare ( Ecore_Wl2_Subsurface * subsurface )

Prepare video surface for a given subsurface.

Parameters:

subsurface The subsurface to prepare video surface

Returns:: EINA_TRUE on success, EINA_FALSE otherwise

Since :: 6.0

Eina_Bool ecore_wl2_subsurface_video_surface_rotation_set	(	Ecore_Wl2_Subsurface *	subsurface,
		Ecore_Wl2_Subsurface_Rotation	rotation
	)

Set video surface rotation for a given subsurface.

Parameters:

subsurface	The subsurface to set video surface rotation
rotation	The rotation type to set video surface rotation

Returns:: EINA_TRUE on success, EINA_FALSE otherwise

Since :: 6.0

Functions

Typedefs

Typedef Documentation

Enumeration Type Documentation

Function Documentation