static void
clutter_stage_x11_set_user_resizable (ClutterStageWindow *stage_window,
gboolean is_resizable)
{
ClutterStageX11 *stage_x11 = CLUTTER_STAGE_X11 (stage_window);
clutter_stage_x11_fix_window_size (stage_x11,
stage_x11->xwin_width,
stage_x11->xwin_height);
}
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 void
clutter_stage_x11_resize (ClutterStageWindow *stage_window,
gint width,
gint height)
{
ClutterStageX11 *stage_x11 = CLUTTER_STAGE_X11 (stage_window);
ClutterStageCogl *stage_cogl = CLUTTER_STAGE_COGL (stage_x11);
ClutterBackendX11 *backend_x11 = CLUTTER_BACKEND_X11 (stage_cogl->backend);
if (stage_x11->is_foreign_xwin)
{
/* If this is a foreign window we won't get a ConfigureNotify,
* so we need to manually set the size and queue a relayout on the
* stage here (as is normally done in response to ConfigureNotify).
*/
stage_x11->xwin_width = width;
stage_x11->xwin_height = height;
clutter_actor_queue_relayout (CLUTTER_ACTOR (stage_cogl->wrapper));
return;
}
/* If we're going fullscreen, don't mess with the size */
if (stage_x11->fullscreening)
return;
if (width == 0 || height == 0)
{
/* Should not happen, if this turns up we need to debug it and
* determine the cleanest way to fix.
*/
g_warning ("X11 stage not allowed to have 0 width or height");
width = 1;
height = 1;
}
CLUTTER_NOTE (BACKEND, "New size received: (%d, %d)", width, height);
if (stage_x11->xwin != None)
{
clutter_stage_x11_fix_window_size (stage_x11, width, height);
if (width != stage_x11->xwin_width ||
height != stage_x11->xwin_height)
{
CLUTTER_NOTE (BACKEND, "%s: XResizeWindow[%x] (%d, %d)",
G_STRLOC,
(unsigned int) stage_x11->xwin,
width,
height);
CLUTTER_SET_PRIVATE_FLAGS (stage_cogl->wrapper,
CLUTTER_IN_RESIZE);
/* XXX: in this case we can rely on a subsequent
* ConfigureNotify that will result in the stage
* being reallocated so we don't actively do anything
* to affect the stage allocation here. */
XResizeWindow (backend_x11->xdpy,
stage_x11->xwin,
width,
height);
}
}
}
static void
clutter_stage_x11_set_fullscreen (ClutterStageWindow *stage_window,
gboolean is_fullscreen)
{
ClutterStageX11 *stage_x11 = CLUTTER_STAGE_X11 (stage_window);
ClutterStageCogl *stage_cogl = CLUTTER_STAGE_COGL (stage_x11);
ClutterBackendX11 *backend_x11 = CLUTTER_BACKEND_X11 (stage_cogl->backend);
ClutterStage *stage = stage_cogl->wrapper;
gboolean was_fullscreen;
if (stage == NULL || CLUTTER_ACTOR_IN_DESTRUCTION (stage))
return;
was_fullscreen = _clutter_stage_is_fullscreen (stage);
is_fullscreen = !!is_fullscreen;
if (was_fullscreen == is_fullscreen)
return;
CLUTTER_NOTE (BACKEND, "%ssetting fullscreen", is_fullscreen ? "" : "un");
if (is_fullscreen)
{
#if 0
int width, height;
/* FIXME: this will do the wrong thing for dual-headed
displays. This will return the size of the combined display
but Metacity (at least) will fullscreen to only one of the
displays. This will cause the actor to report the wrong size
until the ConfigureNotify for the correct size is received */
width = DisplayWidth (backend_x11->xdpy, backend_x11->xscreen_num);
height = DisplayHeight (backend_x11->xdpy, backend_x11->xscreen_num);
#endif
/* Set the fullscreen hint so we can retain the old size of the window. */
stage_x11->fullscreening = TRUE;
if (stage_x11->xwin != None)
{
/* if the actor is not mapped we resize the stage window to match
* the size of the screen; this is useful for e.g. EGLX to avoid
* a resize when calling clutter_stage_fullscreen() before showing
* the stage
*/
if (!STAGE_X11_IS_MAPPED (stage_x11))
{
CLUTTER_NOTE (BACKEND, "Fullscreening unmapped stage");
update_state (stage_x11, backend_x11,
&backend_x11->atom_NET_WM_STATE_FULLSCREEN,
TRUE);
}
else
{
CLUTTER_NOTE (BACKEND, "Fullscreening mapped stage");
/* We need to fix the window size so that it will remove
the maximum and minimum window hints. Otherwise
metacity will honour the restrictions and not
fullscreen correctly. */
clutter_stage_x11_fix_window_size (stage_x11, -1, -1);
send_wmspec_change_state (backend_x11, stage_x11->xwin,
backend_x11->atom_NET_WM_STATE_FULLSCREEN,
TRUE);
}
}
else
stage_x11->fullscreen_on_realize = TRUE;
}
else
{
stage_x11->fullscreening = FALSE;
if (stage_x11->xwin != None)
{
if (!STAGE_X11_IS_MAPPED (stage_x11))
{
CLUTTER_NOTE (BACKEND, "Un-fullscreening unmapped stage");
update_state (stage_x11, backend_x11,
&backend_x11->atom_NET_WM_STATE_FULLSCREEN,
FALSE);
}
else
{
CLUTTER_NOTE (BACKEND, "Un-fullscreening mapped stage");
send_wmspec_change_state (backend_x11,
stage_x11->xwin,
backend_x11->atom_NET_WM_STATE_FULLSCREEN,
FALSE);
/* Fix the window size to restore the minimum/maximum
restriction */
clutter_stage_x11_fix_window_size (stage_x11,
stage_x11->xwin_width,
stage_x11->xwin_height);
}
}
else
stage_x11->fullscreen_on_realize = FALSE;
}
/* XXX: Note we rely on the ConfigureNotify mechanism as the common
* mechanism to handle notifications of new X window sizes from the
* X server so we don't actively change the stage viewport here or
* queue a relayout etc. */
}
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);
}
