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xwayland: move egl_backend to its own struct 

EGL backend availability requires both EGL extensions and Wayland
interfaces to be present, so we will need to consider multiple backends
during initialization.

As a preliminary work, move the egl_backend to its own struct so that we
can have more than one backend at any given time.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
This commit is contained in:
Olivier Fourdan 2018-06-05 19:38:40 +02:00 committed by Adam Jackson
parent de004eefc6
commit b74b0f18b8
1 changed files with 51 additions and 48 deletions
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99
hw/xwayland/xwayland.h
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@ -57,6 +57,56 @@ struct xwl_format {
struct xwl_pixmap; struct xwl_pixmap;
struct xwl_window; struct xwl_window;
struct xwl_screen;
struct xwl_egl_backend {
/* Called once for each interface in the global registry. Backends
* should use this to bind to any wayland interfaces they need. This
* callback is optional.
*/
void (*init_wl_registry)(struct xwl_screen *xwl_screen,
struct wl_registry *wl_registry,
uint32_t id, const char *name,
uint32_t version);
/* Called before glamor has been initialized. Backends should setup a
* valid, glamor compatible EGL context in this hook.
*/
Bool (*init_egl)(struct xwl_screen *xwl_screen);
/* Called after glamor has been initialized, and after all of the
* common Xwayland DDX hooks have been connected. Backends should use
* this to setup any required wraps around X server callbacks like
* CreatePixmap.
*/
Bool (*init_screen)(struct xwl_screen *xwl_screen);
/* Called by Xwayland to retrieve a pointer to a valid wl_buffer for
* the given window/pixmap combo so that damage to the pixmap may be
* displayed on-screen. Backends should use this to create a new
* wl_buffer for a currently buffer-less pixmap, or simply return the
* pixmap they've prepared beforehand.
*/
struct wl_buffer *(*get_wl_buffer_for_pixmap)(PixmapPtr pixmap,
unsigned short width,
unsigned short height,
Bool *created);
/* Called by Xwayland to perform any pre-wl_surface damage routines
* that are required by the backend. If your backend is poorly
* designed and lacks the ability to render directly to a surface,
* you should implement blitting from the glamor pixmap to the wayland
* pixmap here. Otherwise, this callback is optional.
*/
void (*post_damage)(struct xwl_window *xwl_window,
PixmapPtr pixmap, RegionPtr region);
/* Called by Xwayland to confirm with the egl backend that the given
* pixmap is completely setup and ready for display on-screen. This
* callback is optional.
*/
Bool (*allow_commits)(struct xwl_window *xwl_window);
};
struct xwl_screen { struct xwl_screen {
int width; int width;
@ -110,54 +160,7 @@ struct xwl_screen {
void *egl_display, *egl_context; void *egl_display, *egl_context;
/* the current backend for creating pixmaps on wayland */ /* the current backend for creating pixmaps on wayland */
struct { struct xwl_egl_backend egl_backend;
/* Called once for each interface in the global registry. Backends
* should use this to bind to any wayland interfaces they need. This
* callback is optional.
*/
void (*init_wl_registry)(struct xwl_screen *xwl_screen,
struct wl_registry *wl_registry,
uint32_t id, const char *name,
uint32_t version);
/* Called before glamor has been initialized. Backends should setup a
* valid, glamor compatible EGL context in this hook.
*/
Bool (*init_egl)(struct xwl_screen *xwl_screen);
/* Called after glamor has been initialized, and after all of the
* common Xwayland DDX hooks have been connected. Backends should use
* this to setup any required wraps around X server callbacks like
* CreatePixmap.
*/
Bool (*init_screen)(struct xwl_screen *xwl_screen);
/* Called by Xwayland to retrieve a pointer to a valid wl_buffer for
* the given window/pixmap combo so that damage to the pixmap may be
* displayed on-screen. Backends should use this to create a new
* wl_buffer for a currently buffer-less pixmap, or simply return the
* pixmap they've prepared beforehand.
*/
struct wl_buffer *(*get_wl_buffer_for_pixmap)(PixmapPtr pixmap,
unsigned short width,
unsigned short height,
Bool *created);
/* Called by Xwayland to perform any pre-wl_surface damage routines
* that are required by the backend. If your backend is poorly
* designed and lacks the ability to render directly to a surface,
* you should implement blitting from the glamor pixmap to the wayland
* pixmap here. Otherwise, this callback is optional.
*/
void (*post_damage)(struct xwl_window *xwl_window,
PixmapPtr pixmap, RegionPtr region);
/* Called by Xwayland to confirm with the egl backend that the given
* pixmap is completely setup and ready for display on-screen. This
* callback is optional.
*/
Bool (*allow_commits)(struct xwl_window *xwl_window);
} egl_backend;
struct glamor_context *glamor_ctx; struct glamor_context *glamor_ctx;