static gboolean
clutter_stage_x11_realize (ClutterStageWindow *stage_window)
{
ClutterStageX11 *stage_x11 = CLUTTER_STAGE_X11 (stage_window);
ClutterStageCogl *stage_cogl = CLUTTER_STAGE_COGL (stage_window);
ClutterBackend *backend = CLUTTER_BACKEND (stage_cogl->backend);
ClutterBackendX11 *backend_x11 = CLUTTER_BACKEND_X11 (backend);
ClutterDeviceManager *device_manager;
int event_flags;
gfloat width, height;
clutter_actor_get_size (CLUTTER_ACTOR (stage_cogl->wrapper),
&width, &height);
stage_cogl->onscreen = cogl_onscreen_new (backend->cogl_context,
width, height);
/* We just created a window of the size of the actor. No need to fix
the size of the stage, just update it. */
stage_x11->xwin_width = width;
stage_x11->xwin_height = height;
if (stage_x11->xwin != None)
{
cogl_x11_onscreen_set_foreign_window_xid (stage_cogl->onscreen,
stage_x11->xwin,
_clutter_stage_x11_update_foreign_event_mask,
stage_x11);
}
/* Chain to the parent class now. ClutterStageCogl will call cogl_framebuffer_allocate,
which will create the X Window we need */
if (!(clutter_stage_window_parent_iface->realize (stage_window)))
return FALSE;
if (stage_x11->xwin == None)
stage_x11->xwin = cogl_x11_onscreen_get_window_xid (stage_cogl->onscreen);
if (clutter_stages_by_xid == NULL)
clutter_stages_by_xid = g_hash_table_new (NULL, NULL);
g_hash_table_insert (clutter_stages_by_xid,
GINT_TO_POINTER (stage_x11->xwin),
stage_x11);
set_wm_pid (stage_x11);
set_wm_title (stage_x11);
set_cursor_visible (stage_x11);
/* the masks for the events we want to select on a stage window;
* KeyPressMask and KeyReleaseMask are necessary even with XI1
* because key events are broken with that extension, and will
* be fixed by XI2
*/
event_flags = CLUTTER_STAGE_X11_EVENT_MASK;
/* we unconditionally select input events even with event retrieval
* disabled because we need to guarantee that the Clutter internal
* state is maintained when calling clutter_x11_handle_event() without
* requiring applications or embedding toolkits to select events
* themselves. if we did that, we'd have to document the events to be
* selected, and also update applications and embedding toolkits each
* time we added a new mask, or a new class of events.
*
* see: http://bugzilla.clutter-project.org/show_bug.cgi?id=998
* for the rationale of why we did conditional selection. it is now
* clear that a compositor should clear out the input region, since
* it cannot assume a perfectly clean slate coming from us.
*
* see: http://bugzilla.clutter-project.org/show_bug.cgi?id=2228
* for an example of things that break if we do conditional event
* selection.
*/
XSelectInput (backend_x11->xdpy, stage_x11->xwin, event_flags);
/* input events also depent on the actual device, so we need to
* use the device manager to let every device select them, using
* the event mask we passed to XSelectInput as the template
*/
device_manager = clutter_device_manager_get_default ();
if (G_UNLIKELY (device_manager != NULL))
{
_clutter_device_manager_select_stage_events (device_manager,
stage_cogl->wrapper,
event_flags);
g_signal_connect (device_manager, "device-added",
G_CALLBACK (stage_events_device_added),
stage_window);
}
clutter_stage_x11_fix_window_size (stage_x11,
stage_x11->xwin_width,
stage_x11->xwin_height);
clutter_stage_x11_set_wm_protocols (stage_x11);
if (stage_x11->fullscreen_on_realize)
{
stage_x11->fullscreen_on_realize = FALSE;
clutter_stage_x11_set_fullscreen (stage_window, TRUE);
}
CLUTTER_NOTE (BACKEND, "Successfully realized stage");
return TRUE;
}
static gboolean
clutter_stage_glx_realize (ClutterStageWindow *stage_window)
{
ClutterStageX11 *stage_x11 = CLUTTER_STAGE_X11 (stage_window);
ClutterStageGLX *stage_glx = CLUTTER_STAGE_GLX (stage_window);
ClutterBackend *backend;
ClutterBackendGLX *backend_glx;
ClutterBackendX11 *backend_x11;
GError *error;
CLUTTER_NOTE (ACTOR, "Realizing stage '%s' [%p]",
G_OBJECT_TYPE_NAME (stage_window),
stage_window);
backend = clutter_get_default_backend ();
backend_glx = CLUTTER_BACKEND_GLX (backend);
backend_x11 = CLUTTER_BACKEND_X11 (backend);
if (stage_x11->xwin == None)
{
XSetWindowAttributes xattr;
unsigned long mask;
XVisualInfo *xvisinfo;
gfloat width, height;
CLUTTER_NOTE (MISC, "Creating stage X window");
xvisinfo = clutter_backend_x11_get_visual_info (backend_x11);
if (xvisinfo == NULL)
{
g_critical ("Unable to find suitable GL visual.");
return FALSE;
}
/* window attributes */
xattr.background_pixel = WhitePixel (backend_x11->xdpy,
backend_x11->xscreen_num);
xattr.border_pixel = 0;
xattr.colormap = XCreateColormap (backend_x11->xdpy,
backend_x11->xwin_root,
xvisinfo->visual,
AllocNone);
mask = CWBorderPixel | CWColormap;
/* Call get_size - this will either get the geometry size (which
* before we create the window is set to 640x480), or if a size
* is set, it will get that. This lets you set a size on the
* stage before it's realized.
*/
clutter_actor_get_size (CLUTTER_ACTOR (stage_x11->wrapper),
&width,
&height);
stage_x11->xwin_width = (gint)width;
stage_x11->xwin_height = (gint)height;
stage_x11->xwin = XCreateWindow (backend_x11->xdpy,
backend_x11->xwin_root,
0, 0,
stage_x11->xwin_width,
stage_x11->xwin_height,
0,
xvisinfo->depth,
InputOutput,
xvisinfo->visual,
mask, &xattr);
CLUTTER_NOTE (BACKEND, "Stage [%p], window: 0x%x, size: %dx%d",
stage_window,
(unsigned int) stage_x11->xwin,
stage_x11->xwin_width,
stage_x11->xwin_height);
XFree (xvisinfo);
}
if (stage_glx->glxwin == None)
{
int major;
int minor;
GLXFBConfig config;
/* Try and create a GLXWindow to use with extensions dependent on
* GLX versions >= 1.3 that don't accept regular X Windows as GLX
* drawables. */
if (glXQueryVersion (backend_x11->xdpy, &major, &minor) &&
major == 1 && minor >= 3 &&
_clutter_backend_glx_get_fbconfig (backend_glx, &config))
{
stage_glx->glxwin = glXCreateWindow (backend_x11->xdpy,
config,
stage_x11->xwin,
NULL);
}
}
if (clutter_x11_has_event_retrieval ())
{
if (clutter_x11_has_xinput ())
{
XSelectInput (backend_x11->xdpy, stage_x11->xwin,
StructureNotifyMask |
FocusChangeMask |
ExposureMask |
KeyPressMask | KeyReleaseMask |
EnterWindowMask | LeaveWindowMask |
PropertyChangeMask);
#ifdef HAVE_XINPUT
_clutter_x11_select_events (stage_x11->xwin);
#endif
}
else
XSelectInput (backend_x11->xdpy, stage_x11->xwin,
StructureNotifyMask |
FocusChangeMask |
ExposureMask |
PointerMotionMask |
KeyPressMask | KeyReleaseMask |
ButtonPressMask | ButtonReleaseMask |
EnterWindowMask | LeaveWindowMask |
PropertyChangeMask);
#ifdef GLX_INTEL_swap_event
if (clutter_feature_available (CLUTTER_FEATURE_SWAP_EVENTS))
{
GLXDrawable drawable =
stage_glx->glxwin ? stage_glx->glxwin : stage_x11->xwin;
glXSelectEvent (backend_x11->xdpy,
drawable,
GLX_BUFFER_SWAP_COMPLETE_INTEL_MASK);
}
#endif /* GLX_INTEL_swap_event */
}
/* no user resize.. */
clutter_stage_x11_fix_window_size (stage_x11,
stage_x11->xwin_width,
stage_x11->xwin_height);
clutter_stage_x11_set_wm_protocols (stage_x11);
/* ask for a context; a no-op, if a context already exists */
error = NULL;
_clutter_backend_create_context (backend, &error);
if (error)
{
g_critical ("Unable to realize stage: %s", error->message);
g_error_free (error);
return FALSE;
}
CLUTTER_NOTE (BACKEND, "Successfully realized stage");
/* chain up to the StageX11 implementation */
return clutter_stage_glx_parent_iface->realize (stage_window);
}
