/**
* clutter_x11_texture_pixmap_set_window:
* @texture: the texture to bind
* @window: the X window to which the texture should be bound
* @automatic: TRUE is automatic window updates, FALSE for manual.
*
* Sets up a suitable pixmap for the window, using the composite and damage
* extensions if possible, and then calls
* clutter_x11_texture_pixmap_set_pixmap(). If you want a window in a texture,
* you probably want this function, or its older sister,
* clutter_glx_texture_pixmap_set_window().
*
* Since: 0.8
**/
void
clutter_x11_texture_pixmap_set_window (ClutterX11TexturePixmap *texture,
Window window)
{
ClutterX11TexturePixmapPrivate *priv;
XWindowAttributes attr;
Display *dpy = clutter_x11_get_default_display ();
g_return_if_fail (CLUTTER_X11_IS_TEXTURE_PIXMAP (texture));
priv = texture->priv;
if (!clutter_x11_has_composite_extension())
return;
if (priv->window == window)
return;
if (priv->window)
{
clutter_x11_remove_filter (on_x_event_filter_too, (gpointer)texture);
}
priv->window = window;
priv->window_mapped = FALSE;
priv->destroyed = FALSE;
if (window == None)
return;
clutter_x11_trap_x_errors ();
{
if (!XGetWindowAttributes (dpy, window, &attr))
{
XSync (dpy, False);
clutter_x11_untrap_x_errors ();
g_warning ("bad window 0x%x", (guint32)window);
priv->window = None;
return;
}
}
clutter_x11_untrap_x_errors ();
if (priv->window)
{
XSelectInput (dpy, priv->window,
attr.your_event_mask | StructureNotifyMask);
clutter_x11_add_filter (on_x_event_filter_too, (gpointer)texture);
}
g_object_ref (texture);
g_object_notify (G_OBJECT (texture), "window");
clutter_x11_texture_pixmap_set_mapped (texture,
attr.map_state == IsViewable);
clutter_x11_texture_pixmap_sync_window (texture);
g_object_unref (texture);
}
static void
clutter_glx_texture_pixmap_unrealize (ClutterActor *actor)
{
ClutterGLXTexturePixmapPrivate *priv;
Display *dpy;
priv = CLUTTER_GLX_TEXTURE_PIXMAP (actor)->priv;
dpy = clutter_x11_get_default_display();
if (!_have_tex_from_pixmap_ext)
{
CLUTTER_ACTOR_CLASS (clutter_glx_texture_pixmap_parent_class)->
unrealize (actor);
return;
}
if (!CLUTTER_ACTOR_IS_REALIZED (actor))
return;
if (priv->glx_pixmap && priv->bound)
{
clutter_x11_trap_x_errors ();
(_gl_release_tex_image) (dpy,
priv->glx_pixmap,
GLX_FRONT_LEFT_EXT);
XSync (clutter_x11_get_default_display(), FALSE);
clutter_x11_untrap_x_errors ();
priv->bound = FALSE;
}
CLUTTER_ACTOR_UNSET_FLAGS (actor, CLUTTER_ACTOR_REALIZED);
}
/**
* st_clipboard_set_text:
* @clipboard: A #StClipboard
* @type: The type of clipboard that you want to set
* @text: text to copy to the clipboard
*
* Sets text as the current contents of the clipboard.
*/
void
st_clipboard_set_text (StClipboard *clipboard,
StClipboardType type,
const gchar *text)
{
StClipboardPrivate *priv;
Display *dpy;
g_return_if_fail (ST_IS_CLIPBOARD (clipboard));
g_return_if_fail (text != NULL);
priv = clipboard->priv;
/* make a copy of the text */
g_free (priv->clipboard_text);
priv->clipboard_text = g_strdup (text);
/* tell X we own the clipboard selection */
dpy = clutter_x11_get_default_display ();
clutter_x11_trap_x_errors ();
XSetSelectionOwner (dpy,
type == ST_CLIPBOARD_TYPE_CLIPBOARD ? __atom_clip : __atom_primary,
priv->clipboard_window,
CurrentTime);
XSync (dpy, FALSE);
clutter_x11_untrap_x_errors ();
}
static void
clutter_stage_glx_unrealize (ClutterStageWindow *stage_window)
{
ClutterBackend *backend = clutter_get_default_backend ();
ClutterBackendX11 *backend_x11 = CLUTTER_BACKEND_X11 (backend);
ClutterStageX11 *stage_x11 = CLUTTER_STAGE_X11 (stage_window);
ClutterStageGLX *stage_glx = CLUTTER_STAGE_GLX (stage_window);
/* Note unrealize should free up any backend stage related resources */
CLUTTER_NOTE (BACKEND, "Unrealizing stage");
clutter_x11_trap_x_errors ();
if (stage_glx->glxwin != None)
{
glXDestroyWindow (backend_x11->xdpy, stage_glx->glxwin);
stage_glx->glxwin = None;
}
if (!stage_x11->is_foreign_xwin && stage_x11->xwin != None)
{
XDestroyWindow (backend_x11->xdpy, stage_x11->xwin);
stage_x11->xwin = None;
}
else
stage_x11->xwin = None;
XSync (backend_x11->xdpy, False);
clutter_x11_untrap_x_errors ();
CLUTTER_MARK ();
}
static gboolean
xembed_send_message (ClutterBackendX11 *backend_x11,
Window window,
long message,
long detail,
long data1,
long data2)
{
XEvent ev;
memset (&ev, 0, sizeof (ev));
ev.xclient.type = ClientMessage;
ev.xclient.window = window;
ev.xclient.message_type = backend_x11->atom_XEMBED;
ev.xclient.format = 32;
ev.xclient.data.l[0] = CurrentTime;
ev.xclient.data.l[1] = message;
ev.xclient.data.l[2] = detail;
ev.xclient.data.l[3] = data1;
ev.xclient.data.l[4] = data2;
clutter_x11_trap_x_errors ();
XSendEvent (backend_x11->xdpy, window, False, NoEventMask, &ev);
XSync (backend_x11->xdpy, False);
if (clutter_x11_untrap_x_errors ())
return False;
return True;
}
static ClutterX11FilterReturn
st_clipboard_provider (XEvent *xev,
ClutterEvent *cev,
StClipboard *clipboard)
{
XSelectionEvent notify_event;
XSelectionRequestEvent *req_event;
if (xev->type != SelectionRequest)
return CLUTTER_X11_FILTER_CONTINUE;
req_event = &xev->xselectionrequest;
clutter_x11_trap_x_errors ();
if (req_event->target == __atom_targets)
{
XChangeProperty (req_event->display,
req_event->requestor,
req_event->property,
XA_ATOM,
32,
PropModeReplace,
(guchar*) clipboard->priv->supported_targets,
clipboard->priv->n_targets);
}
else
{
XChangeProperty (req_event->display,
req_event->requestor,
req_event->property,
req_event->target,
8,
PropModeReplace,
(guchar*) clipboard->priv->clipboard_text,
strlen (clipboard->priv->clipboard_text));
}
notify_event.type = SelectionNotify;
notify_event.display = req_event->display;
notify_event.requestor = req_event->requestor;
notify_event.selection = req_event->selection;
notify_event.target = req_event->target;
notify_event.time = req_event->time;
if (req_event->property == None)
notify_event.property = req_event->target;
else
notify_event.property = req_event->property;
/* notify the requestor that they have a copy of the selection */
XSendEvent (req_event->display, req_event->requestor, False, 0,
(XEvent *) ¬ify_event);
/* Make it happen non async */
XSync (clutter_x11_get_default_display(), FALSE);
clutter_x11_untrap_x_errors (); /* FIXME: Warn here on fail ? */
return CLUTTER_X11_FILTER_REMOVE;
}
/**
* st_clipboard_get_text:
* @clipboard: A #StCliboard
* @type: The type of clipboard data you want
* @callback: (scope async): function to be called when the text is retreived
* @user_data: data to be passed to the callback
*
* Request the data from the clipboard in text form. @callback is executed
* when the data is retreived.
*
*/
void
st_clipboard_get_text (StClipboard *clipboard,
StClipboardType type,
StClipboardCallbackFunc callback,
gpointer user_data)
{
EventFilterData *data;
Display *dpy;
g_return_if_fail (ST_IS_CLIPBOARD (clipboard));
g_return_if_fail (callback != NULL);
data = g_new0 (EventFilterData, 1);
data->clipboard = clipboard;
data->callback = callback;
data->user_data = user_data;
clutter_x11_add_filter ((ClutterX11FilterFunc) st_clipboard_x11_event_filter,
data);
dpy = clutter_x11_get_default_display ();
clutter_x11_trap_x_errors (); /* safety on */
XConvertSelection (dpy,
type == ST_CLIPBOARD_TYPE_CLIPBOARD ? __atom_clip : __atom_primary,
__utf8_string, __utf8_string,
clipboard->priv->clipboard_window,
CurrentTime);
clutter_x11_untrap_x_errors ();
}
static ClutterX11FilterReturn
st_clipboard_x11_event_filter (XEvent *xev,
ClutterEvent *cev,
EventFilterData *filter_data)
{
Atom actual_type;
int actual_format, result;
unsigned long nitems, bytes_after;
unsigned char *data = NULL;
if(xev->type != SelectionNotify)
return CLUTTER_X11_FILTER_CONTINUE;
if (xev->xselection.property == None)
{
/* clipboard empty */
filter_data->callback (filter_data->clipboard,
NULL,
filter_data->user_data);
clutter_x11_remove_filter ((ClutterX11FilterFunc) st_clipboard_x11_event_filter,
filter_data);
g_free (filter_data);
return CLUTTER_X11_FILTER_REMOVE;
}
clutter_x11_trap_x_errors ();
result = XGetWindowProperty (xev->xselection.display,
xev->xselection.requestor,
xev->xselection.property,
0L, G_MAXINT,
True,
AnyPropertyType,
&actual_type,
&actual_format,
&nitems,
&bytes_after,
&data);
if (clutter_x11_untrap_x_errors () || result != Success)
{
/* FIXME: handle failure better */
g_warning ("Clipboard: prop retrival failed");
}
filter_data->callback (filter_data->clipboard, (char*) data,
filter_data->user_data);
clutter_x11_remove_filter
((ClutterX11FilterFunc) st_clipboard_x11_event_filter,
filter_data);
g_free (filter_data);
if (data)
XFree (data);
return CLUTTER_X11_FILTER_REMOVE;
}
static void
clutter_glx_texture_pixmap_update_area (ClutterX11TexturePixmap *texture,
gint x,
gint y,
gint width,
gint height)
{
ClutterGLXTexturePixmapPrivate *priv;
Display *dpy;
CLUTTER_NOTE (TEXTURE, "Updating texture pixmap");
priv = CLUTTER_GLX_TEXTURE_PIXMAP (texture)->priv;
dpy = clutter_x11_get_default_display();
if (!CLUTTER_ACTOR_IS_REALIZED (texture))
return;
if (priv->use_fallback)
{
CLUTTER_NOTE (TEXTURE, "Falling back to X11");
parent_class->update_area (texture,
x, y,
width, height);
return;
}
if (priv->glx_pixmap == None)
return;
if (texture_bind (CLUTTER_GLX_TEXTURE_PIXMAP(texture)))
{
CLUTTER_NOTE (TEXTURE, "Really updating via GLX");
clutter_x11_trap_x_errors ();
(_gl_bind_tex_image) (dpy,
priv->glx_pixmap,
GLX_FRONT_LEFT_EXT,
NULL);
XSync (clutter_x11_get_default_display(), FALSE);
/* Note above fires X error for non name pixmaps - but
* things still seem to work - i.e pixmap updated
*/
if (clutter_x11_untrap_x_errors ())
CLUTTER_NOTE (TEXTURE, "Update bind_tex_image failed");
priv->bound = TRUE;
}
else
g_warning ("Failed to bind initial tex");
if (CLUTTER_ACTOR_IS_VISIBLE (CLUTTER_ACTOR(texture)))
clutter_actor_queue_redraw (CLUTTER_ACTOR(texture));
}
static ClutterX11FilterReturn
on_x_event_filter (XEvent *xev, ClutterEvent *cev, gpointer data)
{
ClutterX11TexturePixmap *texture;
ClutterX11TexturePixmapPrivate *priv;
Display *dpy;
texture = CLUTTER_X11_TEXTURE_PIXMAP (data);
g_return_val_if_fail (CLUTTER_X11_IS_TEXTURE_PIXMAP (texture), \
CLUTTER_X11_FILTER_CONTINUE);
dpy = clutter_x11_get_default_display();
priv = texture->priv;
if (xev->type == _damage_event_base + XDamageNotify)
{
XserverRegion parts;
gint i, r_count;
XRectangle *r_damage;
XRectangle r_bounds;
XDamageNotifyEvent *dev = (XDamageNotifyEvent*)xev;
if (dev->drawable != priv->damage_drawable)
return CLUTTER_X11_FILTER_CONTINUE;
clutter_x11_trap_x_errors ();
/*
* Retrieve the damaged region and break it down into individual
* rectangles so we do not have to update the whole shebang.
*/
parts = XFixesCreateRegion (dpy, 0, 0);
XDamageSubtract (dpy, priv->damage, None, parts);
r_damage = XFixesFetchRegionAndBounds (dpy,
parts,
&r_count,
&r_bounds);
clutter_x11_untrap_x_errors ();
if (r_damage)
{
for (i = 0; i < r_count; ++i)
clutter_x11_texture_pixmap_update_area (texture,
r_damage[i].x,
r_damage[i].y,
r_damage[i].width,
r_damage[i].height);
XFree (r_damage);
}
XFixesDestroyRegion (dpy, parts);
}
return CLUTTER_X11_FILTER_CONTINUE;
}
static void
clutter_glx_texture_pixmap_free_glx_pixmap (ClutterGLXTexturePixmap *texture)
{
ClutterGLXTexturePixmapPrivate *priv = texture->priv;
Display *dpy;
dpy = clutter_x11_get_default_display ();
if (priv->glx_pixmap &&
priv->bound)
{
texture_bind (texture);
clutter_x11_trap_x_errors ();
(_gl_release_tex_image) (dpy,
priv->glx_pixmap,
GLX_FRONT_LEFT_EXT);
XSync (clutter_x11_get_default_display(), FALSE);
if (clutter_x11_untrap_x_errors ())
CLUTTER_NOTE (TEXTURE, "Failed to release?");
CLUTTER_NOTE (TEXTURE, "Destroyed pxm: %li", priv->glx_pixmap);
priv->bound = FALSE;
}
clutter_x11_trap_x_errors ();
if (priv->glx_pixmap)
glXDestroyGLXPixmap (dpy, priv->glx_pixmap);
XSync (dpy, FALSE);
clutter_x11_untrap_x_errors ();
priv->glx_pixmap = None;
}
static void
free_damage_resources (ClutterX11TexturePixmap *texture)
{
ClutterX11TexturePixmapPrivate *priv;
Display *dpy;
priv = texture->priv;
dpy = clutter_x11_get_default_display();
if (priv->damage)
{
clutter_x11_trap_x_errors ();
XDamageDestroy (dpy, priv->damage);
XSync (dpy, FALSE);
clutter_x11_untrap_x_errors ();
priv->damage = None;
priv->damage_drawable = None;
}
clutter_x11_remove_filter (on_x_event_filter, (gpointer)texture);
}
void
clutter_x11_texture_pixmap_set_automatic (ClutterX11TexturePixmap *texture,
gboolean setting)
{
ClutterX11TexturePixmapPrivate *priv;
Display *dpy;
g_return_if_fail (CLUTTER_X11_IS_TEXTURE_PIXMAP (texture));
priv = texture->priv;
if (setting == priv->automatic_updates)
return;
dpy = clutter_x11_get_default_display();
if (setting == TRUE)
{
clutter_x11_add_filter (on_x_event_filter, (gpointer)texture);
clutter_x11_trap_x_errors ();
if (priv->window)
priv->damage_drawable = priv->window;
else
priv->damage_drawable = priv->pixmap;
priv->damage = XDamageCreate (dpy,
priv->damage_drawable,
XDamageReportNonEmpty);
XSync (dpy, FALSE);
clutter_x11_untrap_x_errors ();
}
else
free_damage_resources (texture);
priv->automatic_updates = setting;
}
static void
clutter_glx_texture_pixmap_dispose (GObject *object)
{
ClutterGLXTexturePixmapPrivate *priv;
priv = CLUTTER_GLX_TEXTURE_PIXMAP (object)->priv;
if (priv->glx_pixmap != None)
{
clutter_x11_trap_x_errors ();
glXDestroyGLXPixmap (clutter_x11_get_default_display(),
priv->glx_pixmap);
XSync (clutter_x11_get_default_display(), FALSE);
clutter_x11_untrap_x_errors ();
priv->glx_pixmap = None;
}
G_OBJECT_CLASS (clutter_glx_texture_pixmap_parent_class)->dispose (object);
}
static void
clutter_stage_glx_unrealize (ClutterStageWindow *stage_window)
{
ClutterStageX11 *stage_x11 = CLUTTER_STAGE_X11 (stage_window);
ClutterStageGLX *stage_glx = CLUTTER_STAGE_GLX (stage_window);
ClutterBackendX11 *backend_x11 = stage_x11->backend;
/* Note unrealize should free up any backend stage related resources */
CLUTTER_NOTE (BACKEND, "Unrealizing GLX stage [%p]", stage_glx);
clutter_x11_trap_x_errors ();
if (stage_glx->glxwin != None)
{
glXDestroyWindow (backend_x11->xdpy, stage_glx->glxwin);
stage_glx->glxwin = None;
}
_clutter_stage_x11_destroy_window_untrapped (stage_x11);
XSync (backend_x11->xdpy, False);
clutter_x11_untrap_x_errors ();
}
/**
* clutter_x11_set_stage_foreign:
* @stage: a #ClutterStage
* @xwindow: an existing X Window id
*
* Target the #ClutterStage to use an existing external X Window
*
* Return value: %TRUE if foreign window is valid
*
*
*/
gboolean
clutter_x11_set_stage_foreign (ClutterStage *stage,
Window xwindow)
{
ClutterBackendX11 *backend_x11;
ClutterStageX11 *stage_x11;
ClutterStageCogl *stage_cogl;
ClutterStageWindow *impl;
ClutterActor *actor;
gint x, y;
guint width, height, border, depth;
Window root_return;
Status status;
ForeignWindowData fwd;
XVisualInfo *xvisinfo;
g_return_val_if_fail (CLUTTER_IS_STAGE (stage), FALSE);
g_return_val_if_fail (!CLUTTER_ACTOR_IN_DESTRUCTION (stage), FALSE);
g_return_val_if_fail (xwindow != None, FALSE);
impl = _clutter_stage_get_window (stage);
stage_x11 = CLUTTER_STAGE_X11 (impl);
stage_cogl = CLUTTER_STAGE_COGL (impl);
backend_x11 = CLUTTER_BACKEND_X11 (stage_cogl->backend);
xvisinfo = _clutter_backend_x11_get_visual_info (backend_x11);
g_return_val_if_fail (xvisinfo != NULL, FALSE);
clutter_x11_trap_x_errors ();
status = XGetGeometry (backend_x11->xdpy, xwindow,
&root_return,
&x, &y,
&width, &height,
&border,
&depth);
if (clutter_x11_untrap_x_errors () || !status)
{
g_critical ("Unable to retrieve the geometry of the foreign window: "
"XGetGeometry() failed (status code: %d)", status);
return FALSE;
}
if (width == 0 || height == 0)
{
g_warning ("The size of the foreign window is 0x0");
return FALSE;
}
if (depth != xvisinfo->depth)
{
g_warning ("The depth of the visual of the foreign window is %d, but "
"Clutter has been initialized to require a visual depth "
"of %d",
depth,
xvisinfo->depth);
return FALSE;
}
fwd.stage_x11 = stage_x11;
fwd.xwindow = xwindow;
/* destroy the old Window, if we have one and it's ours */
if (stage_x11->xwin != None && !stage_x11->is_foreign_xwin)
fwd.destroy_old_xwindow = TRUE;
else
fwd.destroy_old_xwindow = FALSE;
fwd.geom.x = x;
fwd.geom.y = y;
fwd.geom.width = width;
fwd.geom.height = height;
actor = CLUTTER_ACTOR (stage);
_clutter_actor_rerealize (actor,
set_foreign_window_callback,
&fwd);
/* Queue a relayout - so the stage will be allocated the new
* window size.
*
* Note also that when the stage gets allocated the new
* window size that will result in the stage's
* priv->viewport being changed, which will in turn result
* in the Cogl viewport changing when _clutter_do_redraw
* calls _clutter_stage_maybe_setup_viewport().
*/
clutter_actor_queue_relayout (actor);
return TRUE;
}
/* Tries to allocate enough shared mem to handle a full size
* update size of the X Pixmap. */
static gboolean
try_alloc_shm (ClutterX11TexturePixmap *texture)
{
ClutterX11TexturePixmapPrivate *priv;
XImage *dummy_image;
Display *dpy;
priv = texture->priv;
dpy = clutter_x11_get_default_display();
g_return_val_if_fail (priv->pixmap, FALSE);
if (!XShmQueryExtension(dpy) || g_getenv("CLUTTER_X11_NO_SHM"))
{
priv->have_shm = FALSE;
return FALSE;
}
clutter_x11_trap_x_errors ();
/* We are creating a dummy_image so we can have Xlib calculate
* image->bytes_per_line - including any magic padding it may
* want - for the largest possible ximage we might need to use
* when handling updates to the texture.
*
* Note: we pass a NULL shminfo here, but that has no bearing
* on the setup of the XImage, except that ximage->obdata will
* == NULL.
*/
dummy_image =
XShmCreateImage(dpy,
DefaultVisual(dpy,
clutter_x11_get_default_screen()),
priv->depth,
ZPixmap,
NULL,
NULL, /* shminfo, */
priv->pixmap_width,
priv->pixmap_height);
if (!dummy_image)
goto failed_image_create;
priv->shminfo.shmid = shmget (IPC_PRIVATE,
dummy_image->bytes_per_line
* dummy_image->height,
IPC_CREAT|0777);
if (priv->shminfo.shmid == -1)
goto failed_shmget;
priv->shminfo.shmaddr =
shmat (priv->shminfo.shmid, 0, 0);
if (priv->shminfo.shmaddr == (void *)-1)
goto failed_shmat;
priv->shminfo.readOnly = False;
if (XShmAttach(dpy, &priv->shminfo) == 0)
goto failed_xshmattach;
if (clutter_x11_untrap_x_errors ())
g_warning ("X Error: Failed to setup XShm");
priv->have_shm = TRUE;
if (dummy_image)
XFree (dummy_image);
return TRUE;
failed_xshmattach:
g_warning ("XShmAttach failed");
shmdt(priv->shminfo.shmaddr);
failed_shmat:
g_warning ("shmat failed");
shmctl(priv->shminfo.shmid, IPC_RMID, 0);
failed_shmget:
g_warning ("shmget failed");
XDestroyImage(dummy_image);
failed_image_create:
if (clutter_x11_untrap_x_errors ())
g_warning ("X Error: Failed to setup XShm");
priv->have_shm = FALSE;
return FALSE;
}
static gboolean
event_translate (ClutterBackend *backend,
ClutterEvent *event,
XEvent *xevent)
{
ClutterBackendX11 *backend_x11;
ClutterStageX11 *stage_x11;
ClutterStage *stage;
ClutterStageWindow *impl;
ClutterDeviceManager *manager;
gboolean res, not_yet_handled = FALSE;
Window xwindow, stage_xwindow;
ClutterInputDevice *device;
backend_x11 = CLUTTER_BACKEND_X11 (backend);
xwindow = xevent->xany.window;
if (backend_x11->event_filters)
{
GSList *node;
node = backend_x11->event_filters;
while (node)
{
ClutterX11EventFilter *filter = node->data;
switch (filter->func (xevent, event, filter->data))
{
case CLUTTER_X11_FILTER_CONTINUE:
break;
case CLUTTER_X11_FILTER_TRANSLATE:
return TRUE;
case CLUTTER_X11_FILTER_REMOVE:
return FALSE;
default:
break;
}
node = node->next;
}
}
/* Do further processing only on events for the stage window (the x11
* filters might be getting events for other windows, so do not mess
* them about.
*/
stage = clutter_x11_get_stage_from_window (xwindow);
if (stage == NULL)
return FALSE;
impl = _clutter_stage_get_window (stage);
stage_x11 = CLUTTER_STAGE_X11 (impl);
stage_xwindow = xwindow; /* clutter_x11_get_stage_window (stage); */
event->any.stage = stage;
res = TRUE;
update_last_event_time (backend_x11, xevent);
manager = clutter_device_manager_get_default ();
switch (xevent->type)
{
case ConfigureNotify:
if (!stage_x11->is_foreign_xwin)
{
CLUTTER_NOTE (BACKEND, "%s: ConfigureNotify[%x] (%d, %d)",
G_STRLOC,
(unsigned int) stage_x11->xwin,
xevent->xconfigure.width,
xevent->xconfigure.height);
/* Queue a relayout - we want glViewport to be called
* with the correct values, and this is done in ClutterStage
* via _cogl_onscreen_clutter_backend_set_size ().
*
* We queue a relayout, because if this ConfigureNotify is
* in response to a size we set in the application, the
* set_size above is essentially a null-op.
*
* Make sure we do this only when the size has changed,
* otherwise we end up relayouting on window moves.
*/
if ((stage_x11->state & CLUTTER_STAGE_STATE_FULLSCREEN) ||
(stage_x11->xwin_width != xevent->xconfigure.width) ||
(stage_x11->xwin_height != xevent->xconfigure.height))
clutter_actor_queue_relayout (CLUTTER_ACTOR (stage));
/* If we're fullscreened, we want these variables to
* represent the size of the window before it was set
* to fullscreen.
*/
if (!(stage_x11->state & CLUTTER_STAGE_STATE_FULLSCREEN))
{
stage_x11->xwin_width = xevent->xconfigure.width;
stage_x11->xwin_height = xevent->xconfigure.height;
}
clutter_actor_set_size (CLUTTER_ACTOR (stage),
xevent->xconfigure.width,
xevent->xconfigure.height);
CLUTTER_UNSET_PRIVATE_FLAGS (stage_x11->wrapper,
CLUTTER_STAGE_IN_RESIZE);
/* the resize process is complete, so we can ask the stage
* to set up the GL viewport with the new size
*/
clutter_stage_ensure_viewport (stage);
}
res = FALSE;
break;
case PropertyNotify:
if (xevent->xproperty.atom == backend_x11->atom_NET_WM_STATE &&
xevent->xproperty.window == stage_xwindow &&
!stage_x11->is_foreign_xwin)
{
Atom type;
gint format;
gulong n_items, bytes_after;
guchar *data = NULL;
gboolean fullscreen_set = FALSE;
clutter_x11_trap_x_errors ();
XGetWindowProperty (backend_x11->xdpy, stage_xwindow,
backend_x11->atom_NET_WM_STATE,
0, G_MAXLONG,
False, XA_ATOM,
&type, &format, &n_items,
&bytes_after, &data);
clutter_x11_untrap_x_errors ();
if (type != None && data != NULL)
{
Atom *atoms = (Atom *) data;
gulong i;
gboolean is_fullscreen = FALSE;
for (i = 0; i < n_items; i++)
{
if (atoms[i] == backend_x11->atom_NET_WM_STATE_FULLSCREEN)
fullscreen_set = TRUE;
}
is_fullscreen =
(stage_x11->state & CLUTTER_STAGE_STATE_FULLSCREEN);
if (fullscreen_set != is_fullscreen)
{
if (fullscreen_set)
stage_x11->state |= CLUTTER_STAGE_STATE_FULLSCREEN;
else
stage_x11->state &= ~CLUTTER_STAGE_STATE_FULLSCREEN;
stage_x11->fullscreening = fullscreen_set;
event->type = CLUTTER_STAGE_STATE;
event->stage_state.changed_mask =
CLUTTER_STAGE_STATE_FULLSCREEN;
event->stage_state.new_state = stage_x11->state;
}
else
res = FALSE;
XFree (data);
}
else
res = FALSE;
}
else
res = FALSE;
break;
case MapNotify:
res = FALSE;
break;
case UnmapNotify:
res = FALSE;
break;
case FocusIn:
if (!(stage_x11->state & CLUTTER_STAGE_STATE_ACTIVATED))
{
/* TODO: check xevent->xfocus.detail ? */
stage_x11->state |= CLUTTER_STAGE_STATE_ACTIVATED;
event->type = CLUTTER_STAGE_STATE;
event->stage_state.changed_mask = CLUTTER_STAGE_STATE_ACTIVATED;
event->stage_state.new_state = stage_x11->state;
}
else
res = FALSE;
break;
case FocusOut:
if (stage_x11->state & CLUTTER_STAGE_STATE_ACTIVATED)
{
stage_x11->state &= ~CLUTTER_STAGE_STATE_ACTIVATED;
event->type = CLUTTER_STAGE_STATE;
event->stage_state.changed_mask = CLUTTER_STAGE_STATE_ACTIVATED;
event->stage_state.new_state = stage_x11->state;
}
else
res = FALSE;
break;
case Expose:
{
CLUTTER_NOTE (MULTISTAGE, "expose for stage: %p, redrawing", stage);
clutter_actor_queue_redraw (CLUTTER_ACTOR (stage));
res = FALSE;
}
break;
case DestroyNotify:
CLUTTER_NOTE (EVENT, "destroy notify:\txid: %ld",
xevent->xdestroywindow.window);
if (xevent->xdestroywindow.window == stage_xwindow &&
!stage_x11->is_foreign_xwin)
event->type = event->any.type = CLUTTER_DESTROY_NOTIFY;
else
res = FALSE;
break;
case ClientMessage:
CLUTTER_NOTE (EVENT, "client message");
event->type = event->any.type = CLUTTER_CLIENT_MESSAGE;
if (xevent->xclient.message_type == backend_x11->atom_XEMBED)
res = handle_xembed_event (backend_x11, xevent);
else if (xevent->xclient.message_type == backend_x11->atom_WM_PROTOCOLS)
{
res = handle_wm_protocols_event (backend_x11, stage_xwindow, xevent);
event->type = event->any.type = CLUTTER_DELETE;
}
break;
case KeyPress:
event->key.type = event->type = CLUTTER_KEY_PRESS;
event->key.device =
clutter_device_manager_get_core_device (manager,
CLUTTER_KEYBOARD_DEVICE);
translate_key_event (backend, event, xevent);
set_user_time (backend_x11, &xwindow, xevent->xkey.time);
break;
case KeyRelease:
/* old-style X11 terminals require that even modern X11 send
* KeyPress/KeyRelease pairs when auto-repeating. for this
* reason modern(-ish) API like XKB has a way to detect
* auto-repeat and do a single KeyRelease at the end of a
* KeyPress sequence.
*
* this check emulates XKB's detectable auto-repeat; we peek
* the next event and check if it's a KeyPress for the same key
* and timestamp - and then ignore it if it matches the
* KeyRelease
*/
if (XPending (xevent->xkey.display))
{
XEvent next_event;
XPeekEvent (xevent->xkey.display, &next_event);
if (next_event.type == KeyPress &&
next_event.xkey.keycode == xevent->xkey.keycode &&
next_event.xkey.time == xevent->xkey.time)
{
res = FALSE;
break;
}
}
event->key.type = event->type = CLUTTER_KEY_RELEASE;
event->key.device =
clutter_device_manager_get_core_device (manager,
CLUTTER_KEYBOARD_DEVICE);
translate_key_event (backend, event, xevent);
break;
default:
/* ignore every other event */
not_yet_handled = TRUE;
break;
}
/* Input device event handling.. */
if (not_yet_handled)
{
device = clutter_device_manager_get_core_device (manager,
CLUTTER_POINTER_DEVICE);
/* Regular X event */
switch (xevent->type)
{
case ButtonPress:
switch (xevent->xbutton.button)
{
case 4: /* up */
case 5: /* down */
case 6: /* left */
case 7: /* right */
event->scroll.type = event->type = CLUTTER_SCROLL;
if (xevent->xbutton.button == 4)
event->scroll.direction = CLUTTER_SCROLL_UP;
else if (xevent->xbutton.button == 5)
event->scroll.direction = CLUTTER_SCROLL_DOWN;
else if (xevent->xbutton.button == 6)
event->scroll.direction = CLUTTER_SCROLL_LEFT;
else
event->scroll.direction = CLUTTER_SCROLL_RIGHT;
event->scroll.time = xevent->xbutton.time;
event->scroll.x = xevent->xbutton.x;
event->scroll.y = xevent->xbutton.y;
event->scroll.modifier_state = xevent->xbutton.state;
event->scroll.device = device;
break;
default:
event->button.type = event->type = CLUTTER_BUTTON_PRESS;
event->button.time = xevent->xbutton.time;
event->button.x = xevent->xbutton.x;
event->button.y = xevent->xbutton.y;
event->button.modifier_state = xevent->xbutton.state;
event->button.button = xevent->xbutton.button;
event->button.device = device;
break;
}
set_user_time (backend_x11, &xwindow, event->button.time);
res = TRUE;
break;
case ButtonRelease:
/* scroll events don't have a corresponding release */
if (xevent->xbutton.button == 4 ||
xevent->xbutton.button == 5 ||
xevent->xbutton.button == 6 ||
xevent->xbutton.button == 7)
{
res = FALSE;
goto out;
}
event->button.type = event->type = CLUTTER_BUTTON_RELEASE;
event->button.time = xevent->xbutton.time;
event->button.x = xevent->xbutton.x;
event->button.y = xevent->xbutton.y;
event->button.modifier_state = xevent->xbutton.state;
event->button.button = xevent->xbutton.button;
event->button.device = device;
res = TRUE;
break;
case MotionNotify:
event->motion.type = event->type = CLUTTER_MOTION;
event->motion.time = xevent->xmotion.time;
event->motion.x = xevent->xmotion.x;
event->motion.y = xevent->xmotion.y;
event->motion.modifier_state = xevent->xmotion.state;
event->motion.device = device;
res = TRUE;
break;
case EnterNotify:
/* we know that we are entering the stage here */
_clutter_input_device_set_stage (device, stage);
CLUTTER_NOTE (EVENT, "Entering the stage");
/* Convert enter notifies to motion events because X
doesn't emit the corresponding motion notify */
event->motion.type = event->type = CLUTTER_MOTION;
event->motion.time = xevent->xcrossing.time;
event->motion.x = xevent->xcrossing.x;
event->motion.y = xevent->xcrossing.y;
event->motion.modifier_state = xevent->xcrossing.state;
event->motion.source = CLUTTER_ACTOR (stage);
event->motion.device = device;
res = TRUE;
break;
case LeaveNotify:
if (device->stage == NULL)
{
CLUTTER_NOTE (EVENT,
"Discarding LeaveNotify for ButtonRelease "
"event off-stage");
res = FALSE;
goto out;
}
/* we know that we are leaving the stage here */
_clutter_input_device_set_stage (device, NULL);
CLUTTER_NOTE (EVENT, "Leaving the stage (time:%u)",
event->crossing.time);
event->crossing.type = event->type = CLUTTER_LEAVE;
event->crossing.time = xevent->xcrossing.time;
event->crossing.x = xevent->xcrossing.x;
event->crossing.y = xevent->xcrossing.y;
event->crossing.source = CLUTTER_ACTOR (stage);
event->crossing.device = device;
res = TRUE;
break;
default:
res = FALSE;
break;
}
}
/* XInput fun...*/
if (!res && clutter_x11_has_xinput ())
{
#ifdef HAVE_XINPUT
int *ev_types = backend_x11->event_types;
int button_press, button_release;
int key_press, key_release;
int motion_notify;
button_press = ev_types[CLUTTER_X11_XINPUT_BUTTON_PRESS_EVENT];
button_release = ev_types[CLUTTER_X11_XINPUT_BUTTON_RELEASE_EVENT];
motion_notify = ev_types[CLUTTER_X11_XINPUT_MOTION_NOTIFY_EVENT];
key_press = ev_types[CLUTTER_X11_XINPUT_KEY_PRESS_EVENT];
key_release = ev_types[CLUTTER_X11_XINPUT_KEY_RELEASE_EVENT];
CLUTTER_NOTE (EVENT, "XInput event type: %d", xevent->type);
if (xevent->type == button_press)
{
XDeviceButtonEvent *xbev = (XDeviceButtonEvent *) xevent;
device = _clutter_x11_get_device_for_xid (xbev->deviceid);
_clutter_input_device_set_stage (device, stage);
CLUTTER_NOTE (EVENT,
"XI ButtonPress for %li ('%s') at %d, %d",
xbev->deviceid,
device->device_name,
xbev->x,
xbev->y);
switch (xbev->button)
{
case 4:
case 5:
case 6:
case 7:
event->scroll.type = event->type = CLUTTER_SCROLL;
if (xbev->button == 4)
event->scroll.direction = CLUTTER_SCROLL_UP;
else if (xbev->button == 5)
event->scroll.direction = CLUTTER_SCROLL_DOWN;
else if (xbev->button == 6)
event->scroll.direction = CLUTTER_SCROLL_LEFT;
else
event->scroll.direction = CLUTTER_SCROLL_RIGHT;
event->scroll.time = xbev->time;
event->scroll.x = xbev->x;
event->scroll.y = xbev->y;
event->scroll.modifier_state = xbev->state;
event->scroll.device = device;
break;
default:
event->button.type = event->type = CLUTTER_BUTTON_PRESS;
event->button.time = xbev->time;
event->button.x = xbev->x;
event->button.y = xbev->y;
event->button.modifier_state = xbev->state;
event->button.button = xbev->button;
event->button.device = device;
break;
}
set_user_time (backend_x11, &xwindow, xbev->time);
res = TRUE;
}
else if (xevent->type == button_release)
{
XDeviceButtonEvent *xbev = (XDeviceButtonEvent *)xevent;
device = _clutter_x11_get_device_for_xid (xbev->deviceid);
_clutter_input_device_set_stage (device, stage);
CLUTTER_NOTE (EVENT, "XI ButtonRelease for %li ('%s') at %d, %d",
xbev->deviceid,
device->device_name,
xbev->x,
xbev->y);
/* scroll events don't have a corresponding release */
if (xbev->button == 4 ||
xbev->button == 5 ||
xbev->button == 6 ||
xbev->button == 7)
{
res = FALSE;
goto out;
}
event->button.type = event->type = CLUTTER_BUTTON_RELEASE;
event->button.time = xbev->time;
event->button.x = xbev->x;
event->button.y = xbev->y;
event->button.modifier_state = xbev->state;
event->button.button = xbev->button;
event->button.device = device;
res = TRUE;
}
else if (xevent->type == motion_notify)
{
XDeviceMotionEvent *xmev = (XDeviceMotionEvent *)xevent;
device = _clutter_x11_get_device_for_xid (xmev->deviceid);
_clutter_input_device_set_stage (device, stage);
CLUTTER_NOTE (EVENT, "XI Motion for %li ('%s') at %d, %d",
xmev->deviceid,
device->device_name,
xmev->x,
xmev->y);
event->motion.type = event->type = CLUTTER_MOTION;
event->motion.time = xmev->time;
event->motion.x = xmev->x;
event->motion.y = xmev->y;
event->motion.modifier_state = xmev->state;
event->motion.device = device;
res = TRUE;
}
else if (xevent->type == key_press || xevent->type == key_release)
{
/* the XInput 1.x handling of key presses/releases is broken:
* it makes key repeat, key presses and releases outside the
* window not generate events even when the window has focus
*/
XDeviceKeyEvent *xkev = (XDeviceKeyEvent *) xevent;
XEvent xevent_converted;
convert_xdevicekey_to_xkey (xkev, &xevent_converted);
event->key.type = event->type = (xevent->type == key_press)
? CLUTTER_KEY_PRESS
: CLUTTER_KEY_RELEASE;
translate_key_event (backend, event, &xevent_converted);
if (xevent->type == key_press)
set_user_time (backend_x11, &xwindow, xkev->time);
}
else
#endif /* HAVE_XINPUT */
{
CLUTTER_NOTE (EVENT, "Uknown Event");
res = FALSE;
}
}
out:
return res;
}
static void
clutter_x11_texture_pixmap_update_area_real (ClutterX11TexturePixmap *texture,
gint x,
gint y,
gint width,
gint height)
{
ClutterX11TexturePixmapPrivate *priv;
Display *dpy;
XImage *image;
char *first_pixel;
GError *error = NULL;
guint bytes_per_line;
char *data;
int err_code;
char pixel_bpp;
gboolean pixel_has_alpha;
#if 0
clock_t start_t = clock();
#endif
if (!CLUTTER_ACTOR_IS_REALIZED (texture))
return;
priv = texture->priv;
dpy = clutter_x11_get_default_display();
if (!priv->pixmap)
return;
if (priv->shminfo.shmid == -1)
try_alloc_shm (texture);
clutter_x11_trap_x_errors ();
if (priv->have_shm)
{
image =
XShmCreateImage(dpy,
DefaultVisual(dpy,
clutter_x11_get_default_screen()),
priv->depth,
ZPixmap,
NULL,
&priv->shminfo,
width,
height);
image->data = priv->shminfo.shmaddr;
XShmGetImage (dpy, priv->pixmap, image, x, y, AllPlanes);
first_pixel = image->data;
}
else
{
if (!priv->image)
{
priv->image = XGetImage (dpy,
priv->pixmap,
0, 0,
priv->pixmap_width, priv->pixmap_height,
AllPlanes,
ZPixmap);
if (priv->image)
first_pixel = priv->image->data + priv->image->bytes_per_line * y
+ x * priv->image->bits_per_pixel/8;
else
{
g_warning ("%s: XGetImage() failed", __FUNCTION__);
return;
}
}
else
{
XGetSubImage (dpy,
priv->pixmap,
x, y,
width, height,
AllPlanes,
ZPixmap,
priv->image,
x, y);
first_pixel = priv->image->data + priv->image->bytes_per_line * y
+ x * priv->image->bits_per_pixel/8;
}
image = priv->image;
}
XSync (dpy, FALSE);
if ((err_code = clutter_x11_untrap_x_errors ()))
{
g_warning ("Failed to get XImage of pixmap: %lx, removing",
priv->pixmap);
/* safe to assume pixmap has gone away? - therefor reset */
clutter_x11_texture_pixmap_set_pixmap (texture, None);
goto free_image_and_return;
}
if (priv->depth == 24)
{
bytes_per_line = image->bytes_per_line;
data = first_pixel;
pixel_bpp = 3;
pixel_has_alpha = FALSE;
}
else if (priv->depth == 16)
{
bytes_per_line = image->bytes_per_line;
data = first_pixel;
pixel_bpp = 2;
pixel_has_alpha = FALSE;
}
else if (priv->depth == 32)
{
bytes_per_line = image->bytes_per_line;
data = first_pixel;
pixel_bpp = 4;
pixel_has_alpha = TRUE;
}
else
goto free_image_and_return;
if (!priv->allow_alpha)
pixel_has_alpha = FALSE;
/* For debugging purposes, un comment to simply generate dummy
* pixmap data. (A Green background and Blue cross) */
#if 0
{
guint xpos, ypos;
if (data_allocated)
g_free (data);
data_allocated = TRUE;
data = g_malloc (width*height*4);
bytes_per_line = width *4;
for (ypos=0; ypos<height; ypos++)
for (xpos=0; xpos<width; xpos++)
{
char *p = data + width*4*ypos + xpos * 4;
guint32 *pixel = (guint32 *)p;
if ((xpos > width/2 && xpos <= (width/2) + width/4)
|| (ypos > height/2 && ypos <= (height/2) + height/4))
*pixel=0xff0000ff;
else
*pixel=0xff00ff00;
}
}
#endif
if (x != 0 || y != 0 ||
width != priv->pixmap_width || height != priv->pixmap_height)
clutter_texture_set_area_from_rgb_data (CLUTTER_TEXTURE (texture),
(guint8 *)data,
pixel_has_alpha,
x, y,
width, height,
bytes_per_line,
pixel_bpp,
CLUTTER_TEXTURE_RGB_FLAG_BGR,
&error);
else
clutter_texture_set_from_rgb_data (CLUTTER_TEXTURE (texture),
(guint8 *)data,
pixel_has_alpha,
width, height,
bytes_per_line,
pixel_bpp,
CLUTTER_TEXTURE_RGB_FLAG_BGR,
&error);
if (error)
{
g_warning ("Error when uploading from pixbuf: %s",
error->message);
g_error_free (error);
}
free_image_and_return:
if (priv->have_shm)
XFree (image);
#if 0
clock_t end_t = clock();
int time = (int)((double)(end_t - start_t) * (1000.0 / CLOCKS_PER_SEC));
g_print("clutter-x11-update-area-real(%d,%d,%d,%d) %d bits - %d ms\n",x,y,width,height,priv->depth,time);
#endif
}
/**
* clutter_x11_texture_pixmap_set_pixmap:
* @texture: the texture to bind
* @pixmap: the X Pixmap to which the texture should be bound
*
* Sets the X Pixmap to which the texture should be bound.
*
* Since: 0.8
**/
void
clutter_x11_texture_pixmap_set_pixmap (ClutterX11TexturePixmap *texture,
Pixmap pixmap)
{
Window root;
int x, y;
unsigned int width, height, border_width, depth;
Status status = 0;
gboolean new_pixmap = FALSE, new_pixmap_width = FALSE;
gboolean new_pixmap_height = FALSE, new_pixmap_depth = FALSE;
ClutterX11TexturePixmapPrivate *priv;
g_return_if_fail (CLUTTER_X11_IS_TEXTURE_PIXMAP (texture));
priv = texture->priv;
clutter_x11_trap_x_errors ();
status = XGetGeometry (clutter_x11_get_default_display(),
(Drawable)pixmap,
&root,
&x,
&y,
&width,
&height,
&border_width,
&depth);
if (clutter_x11_untrap_x_errors () || status == 0)
{
if (pixmap != None)
g_warning ("Unable to query pixmap: %lx", pixmap);
pixmap = None;
width = height = depth = 0;
}
if (priv->image)
{
XDestroyImage (priv->image);
priv->image = NULL;
}
if (priv->pixmap != pixmap)
{
if (priv->pixmap && priv->owns_pixmap)
{
g_signal_emit (texture, signals[PIXMAP_FREEING], 0, NULL);
XFreePixmap (clutter_x11_get_default_display (), priv->pixmap);
}
priv->pixmap = pixmap;
new_pixmap = TRUE;
}
if (priv->pixmap_width != width)
{
priv->pixmap_width = width;
new_pixmap_width = TRUE;
}
if (priv->pixmap_height != height)
{
priv->pixmap_height = height;
new_pixmap_height = TRUE;
}
if (priv->depth != depth)
{
priv->depth = depth;
new_pixmap_depth = TRUE;
}
/* NB: We defer sending the signals until updating all the
* above members so the values are all available to the
* signal handlers. */
g_object_ref (texture);
if (new_pixmap)
g_object_notify (G_OBJECT (texture), "pixmap");
if (new_pixmap_width)
g_object_notify (G_OBJECT (texture), "pixmap-width");
if (new_pixmap_height)
g_object_notify (G_OBJECT (texture), "pixmap-height");
if (new_pixmap_depth)
g_object_notify (G_OBJECT (texture), "pixmap-depth");
free_shm_resources (texture);
if (priv->depth != 0 &&
priv->pixmap != None &&
priv->pixmap_width != 0 &&
priv->pixmap_height != 0)
{
if (CLUTTER_ACTOR_IS_REALIZED (texture))
clutter_x11_texture_pixmap_update_area (texture,
0, 0,
priv->pixmap_width,
priv->pixmap_height);
}
/*
* Keep ref until here in case a notify causes removal from the scene; can't
* lower the notifies because glx's notify handler needs to run before
* update_area
*/
g_object_unref (texture);
}
static void
clutter_backend_glx_ensure_context (ClutterBackend *backend,
ClutterStage *stage)
{
ClutterStageWindow *impl;
/* if there is no stage, the stage is being destroyed or it has no
* implementation attached to it then we clear the GL context
*/
if (stage == NULL ||
(CLUTTER_PRIVATE_FLAGS (stage) & CLUTTER_ACTOR_IN_DESTRUCTION) ||
((impl = _clutter_stage_get_window (stage)) == NULL))
{
ClutterBackendX11 *backend_x11;
backend_x11 = CLUTTER_BACKEND_X11 (backend);
CLUTTER_NOTE (MULTISTAGE, "Clearing all context");
glXMakeCurrent (backend_x11->xdpy, None, NULL);
}
else
{
ClutterBackendGLX *backend_glx;
ClutterStageGLX *stage_glx;
ClutterStageX11 *stage_x11;
g_assert (impl != NULL);
CLUTTER_NOTE (MULTISTAGE, "Setting context for stage of type %s [%p]",
g_type_name (G_OBJECT_TYPE (impl)),
impl);
stage_glx = CLUTTER_STAGE_GLX (impl);
stage_x11 = CLUTTER_STAGE_X11 (impl);
backend_glx = CLUTTER_BACKEND_GLX (backend);
/* no GL context to set */
if (backend_glx->gl_context == None)
return;
clutter_x11_trap_x_errors ();
/* we might get here inside the final dispose cycle, so we
* need to handle this gracefully
*/
if (stage_x11->xwin == None)
{
ClutterBackendX11 *backend_x11;
backend_x11 = CLUTTER_BACKEND_X11 (backend);
CLUTTER_NOTE (MULTISTAGE,
"Received a stale stage, clearing all context");
glXMakeCurrent (backend_x11->xdpy, None, NULL);
}
else
{
CLUTTER_NOTE (BACKEND,
"MakeCurrent dpy: %p, window: 0x%x (%s), context: %p",
stage_x11->xdpy,
(int) stage_x11->xwin,
stage_x11->is_foreign_xwin ? "foreign" : "native",
backend_glx->gl_context);
glXMakeCurrent (stage_x11->xdpy,
stage_x11->xwin,
backend_glx->gl_context);
}
if (clutter_x11_untrap_x_errors ())
g_critical ("Unable to make the stage window 0x%x the current "
"GLX drawable",
(int) stage_x11->xwin);
}
}
gint
_clutter_input_device_x11_construct (ClutterInputDevice *device,
ClutterBackendX11 *backend)
{
int n_events = 0;
#ifdef HAVE_XINPUT
ClutterInputDeviceX11 *device_x11;
XDevice *x_device = NULL;
gint device_id;
int i;
device_x11 = CLUTTER_INPUT_DEVICE_X11 (device);
device_id = clutter_input_device_get_device_id (device);
clutter_x11_trap_x_errors ();
/* retrieve the X11 device */
x_device = XOpenDevice (backend->xdpy, device_id);
if (clutter_x11_untrap_x_errors () || x_device == NULL)
{
CLUTTER_NOTE (BACKEND, "Unable to open device %i", device_id);
return 0;
}
device_x11->xdevice = x_device;
CLUTTER_NOTE (BACKEND,
"Registering XINPUT device with XID: %li",
x_device->device_id);
/* We must go through all the classes supported by this device and
* register the appropriate events we want. Each class only appears
* once. We need to store the types with the stage since they are
* created dynamically by the server. They are not device specific.
*/
for (i = 0; i < x_device->num_classes; i++)
{
XInputClassInfo *xclass_info = x_device->classes + i;
int *button_press, *button_release, *motion_notify;
int *key_press, *key_release;
button_press =
&backend->event_types[CLUTTER_X11_XINPUT_BUTTON_PRESS_EVENT];
button_release =
&backend->event_types[CLUTTER_X11_XINPUT_BUTTON_RELEASE_EVENT];
motion_notify =
&backend->event_types[CLUTTER_X11_XINPUT_MOTION_NOTIFY_EVENT];
key_press =
&backend->event_types[CLUTTER_X11_XINPUT_KEY_PRESS_EVENT];
key_release =
&backend->event_types[CLUTTER_X11_XINPUT_KEY_RELEASE_EVENT];
switch (xclass_info->input_class)
{
/* event though XInput 1.x is broken for keyboard-like devices
* it might still be useful to track them down; the core keyboard
* will handle the right events anyway
*/
case KeyClass:
DeviceKeyPress (x_device,
*key_press,
device_x11->xevent_list[n_events]);
n_events++;
DeviceKeyRelease (x_device,
*key_release,
device_x11->xevent_list[n_events]);
n_events++;
break;
case ButtonClass:
DeviceButtonPress (x_device,
*button_press,
device_x11->xevent_list[n_events]);
n_events++;
DeviceButtonRelease (x_device,
*button_release,
device_x11->xevent_list[n_events]);
n_events++;
break;
case ValuatorClass:
DeviceMotionNotify (x_device,
*motion_notify,
device_x11->xevent_list[n_events]);
n_events++;
break;
}
}
device_x11->num_events = n_events;
#endif /* HAVE_XINPUT */
return n_events;
}
static gboolean
clutter_backend_glx_create_context (ClutterBackend *backend,
GError **error)
{
ClutterBackendGLX *backend_glx = CLUTTER_BACKEND_GLX (backend);
ClutterBackendX11 *backend_x11 = CLUTTER_BACKEND_X11 (backend);
GLXFBConfig config;
gboolean is_direct;
Window root_xwin;
XSetWindowAttributes attrs;
XVisualInfo *xvisinfo;
Display *xdisplay;
int major;
int minor;
GLXDrawable dummy_drawable;
if (backend_glx->gl_context != None)
return TRUE;
xdisplay = clutter_x11_get_default_display ();
root_xwin = clutter_x11_get_root_window ();
if (!_clutter_backend_glx_get_fbconfig (backend_glx, &config))
{
g_set_error (error, CLUTTER_INIT_ERROR,
CLUTTER_INIT_ERROR_BACKEND,
"Unable to find suitable fbconfig for the GLX context");
return FALSE;
}
CLUTTER_NOTE (BACKEND, "Creating GLX Context (display: %p)", xdisplay);
backend_glx->gl_context = glXCreateNewContext (xdisplay,
config,
GLX_RGBA_TYPE,
NULL,
True);
if (backend_glx->gl_context == None)
{
g_set_error (error, CLUTTER_INIT_ERROR,
CLUTTER_INIT_ERROR_BACKEND,
"Unable to create suitable GL context");
return FALSE;
}
is_direct = glXIsDirect (xdisplay, backend_glx->gl_context);
CLUTTER_NOTE (GL, "Setting %s context",
is_direct ? "direct"
: "indirect");
_cogl_set_indirect_context (!is_direct);
/* COGL assumes that there is always a GL context selected; in order
* to make sure that a GLX context exists and is made current, we use
* a dummy, offscreen override-redirect window to which we can always
* fall back if no stage is available
*
* XXX - we need to do this dance because GLX does not allow creating
* a context and querying it for basic information (even the function
* pointers) unless it's made current to a real Drawable. it should be
* possible to avoid this in future releases of Mesa and X11, but right
* now this is the best solution available.
*/
xvisinfo = glXGetVisualFromFBConfig (xdisplay, config);
if (xvisinfo == None)
{
g_set_error (error, CLUTTER_INIT_ERROR,
CLUTTER_INIT_ERROR_BACKEND,
"Unable to retrieve the X11 visual");
return FALSE;
}
clutter_x11_trap_x_errors ();
attrs.override_redirect = True;
attrs.colormap = XCreateColormap (xdisplay,
root_xwin,
xvisinfo->visual,
AllocNone);
attrs.border_pixel = 0;
backend_glx->dummy_xwin = XCreateWindow (xdisplay, root_xwin,
-100, -100, 1, 1,
0,
xvisinfo->depth,
CopyFromParent,
xvisinfo->visual,
CWOverrideRedirect | CWColormap | CWBorderPixel,
&attrs);
/* 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)
{
backend_glx->dummy_glxwin = glXCreateWindow (backend_x11->xdpy,
config,
backend_glx->dummy_xwin,
NULL);
}
if (backend_glx->dummy_glxwin)
dummy_drawable = backend_glx->dummy_glxwin;
else
dummy_drawable = backend_glx->dummy_xwin;
CLUTTER_NOTE (BACKEND, "Selecting dummy 0x%x for the GLX context",
(unsigned int) dummy_drawable);
glXMakeContextCurrent (xdisplay,
dummy_drawable,
dummy_drawable,
backend_glx->gl_context);
XFree (xvisinfo);
if (clutter_x11_untrap_x_errors ())
{
g_set_error (error, CLUTTER_INIT_ERROR,
CLUTTER_INIT_ERROR_BACKEND,
"Unable to select the newly created GLX context");
return FALSE;
}
return TRUE;
}
/**
* clutter_x11_texture_pixmap_sync_window:
* @texture: the texture to bind
*
* Resets the texture's pixmap from its window, perhaps in response to the
* pixmap's invalidation as the window changed size.
*
* Since: 0.8
**/
void
clutter_x11_texture_pixmap_sync_window (ClutterX11TexturePixmap *texture)
{
ClutterX11TexturePixmapPrivate *priv;
Pixmap pixmap;
g_return_if_fail (CLUTTER_X11_IS_TEXTURE_PIXMAP (texture));
priv = texture->priv;
if (priv->destroyed)
return;
if (!clutter_x11_has_composite_extension())
{
clutter_x11_texture_pixmap_set_pixmap (texture, priv->window);
return;
}
if (priv->window)
{
XWindowAttributes attr;
Display *dpy = clutter_x11_get_default_display ();
gboolean mapped, notify_x, notify_y, notify_override_redirect;
/* We may get a BadMatch error here if the window is not mapped.
* If so, ignore it - pixmap should be set to None in that case anyway */
XSync (dpy, FALSE);
clutter_x11_trap_x_errors ();
XGetWindowAttributes (dpy, priv->window, &attr);
mapped = attr.map_state == IsViewable;
if (mapped)
pixmap = XCompositeNameWindowPixmap (dpy, priv->window);
else
pixmap = None;
XSync (dpy, FALSE);
if (clutter_x11_untrap_x_errors() && pixmap!=None)
g_warning("%s: Got X error but pixmap is still set", __FUNCTION__);
notify_x = attr.x != priv->window_x;
notify_y = attr.y != priv->window_y;
notify_override_redirect = attr.override_redirect != priv->override_redirect;
priv->window_x = attr.x;
priv->window_y = attr.y;
priv->override_redirect = attr.override_redirect;
g_object_ref (texture); /* guard against unparent */
if (pixmap)
{
clutter_x11_texture_pixmap_set_pixmap (texture, pixmap);
priv->owns_pixmap = TRUE;
}
clutter_x11_texture_pixmap_set_mapped (texture, mapped);
/* could do more clever things with a signal, i guess.. */
if (notify_override_redirect)
g_object_notify (G_OBJECT (texture), "window-override-redirect");
if (notify_x)
g_object_notify (G_OBJECT (texture), "window-x");
if (notify_y)
g_object_notify (G_OBJECT (texture), "window-y");
g_object_unref (texture);
}
}
static ClutterTranslateReturn
clutter_stage_x11_translate_event (ClutterEventTranslator *translator,
gpointer native,
ClutterEvent *event)
{
ClutterStageX11 *stage_x11;
ClutterStageCogl *stage_cogl;
ClutterTranslateReturn res = CLUTTER_TRANSLATE_CONTINUE;
ClutterBackendX11 *backend_x11;
Window stage_xwindow;
XEvent *xevent = native;
ClutterStage *stage;
stage_cogl = clutter_x11_get_stage_window_from_window (xevent->xany.window);
if (stage_cogl == NULL)
return CLUTTER_TRANSLATE_CONTINUE;
stage = stage_cogl->wrapper;
stage_x11 = CLUTTER_STAGE_X11 (stage_cogl);
backend_x11 = CLUTTER_BACKEND_X11 (stage_cogl->backend);
stage_xwindow = stage_x11->xwin;
switch (xevent->type)
{
case ConfigureNotify:
if (!stage_x11->is_foreign_xwin)
{
gboolean size_changed = FALSE;
CLUTTER_NOTE (BACKEND, "ConfigureNotify[%x] (%d, %d)",
(unsigned int) stage_x11->xwin,
xevent->xconfigure.width,
xevent->xconfigure.height);
/* When fullscreen, we'll keep the xwin_width/height
variables to track the old size of the window and we'll
assume all ConfigureNotifies constitute a size change */
if (_clutter_stage_is_fullscreen (stage))
size_changed = TRUE;
else if ((stage_x11->xwin_width != xevent->xconfigure.width) ||
(stage_x11->xwin_height != xevent->xconfigure.height))
{
size_changed = TRUE;
stage_x11->xwin_width = xevent->xconfigure.width;
stage_x11->xwin_height = xevent->xconfigure.height;
}
clutter_actor_set_size (CLUTTER_ACTOR (stage),
xevent->xconfigure.width,
xevent->xconfigure.height);
CLUTTER_UNSET_PRIVATE_FLAGS (stage_cogl->wrapper, CLUTTER_IN_RESIZE);
if (size_changed)
{
/* XXX: This is a workaround for a race condition when
* resizing windows while there are in-flight
* glXCopySubBuffer blits happening.
*
* The problem stems from the fact that rectangles for the
* blits are described relative to the bottom left of the
* window and because we can't guarantee control over the X
* window gravity used when resizing so the gravity is
* typically NorthWest not SouthWest.
*
* This means if you grow a window vertically the server
* will make sure to place the old contents of the window
* at the top-left/north-west of your new larger window, but
* that may happen asynchronous to GLX preparing to do a
* blit specified relative to the bottom-left/south-west of
* the window (based on the old smaller window geometry).
*
* When the GLX issued blit finally happens relative to the
* new bottom of your window, the destination will have
* shifted relative to the top-left where all the pixels you
* care about are so it will result in a nasty artefact
* making resizing look very ugly!
*
* We can't currently fix this completely, in-part because
* the window manager tends to trample any gravity we might
* set. This workaround instead simply disables blits for a
* while if we are notified of any resizes happening so if
* the user is resizing a window via the window manager then
* they may see an artefact for one frame but then we will
* fallback to redrawing the full stage until the cooling
* off period is over.
*/
if (stage_x11->clipped_redraws_cool_off)
g_source_remove (stage_x11->clipped_redraws_cool_off);
stage_x11->clipped_redraws_cool_off =
clutter_threads_add_timeout (1000,
clipped_redraws_cool_off_cb,
stage_x11);
/* Queue a relayout - we want glViewport to be called
* with the correct values, and this is done in ClutterStage
* via cogl_onscreen_clutter_backend_set_size ().
*
* We queue a relayout, because if this ConfigureNotify is
* in response to a size we set in the application, the
* set_size() call above is essentially a null-op.
*
* Make sure we do this only when the size has changed,
* otherwise we end up relayouting on window moves.
*/
clutter_actor_queue_relayout (CLUTTER_ACTOR (stage));
/* the resize process is complete, so we can ask the stage
* to set up the GL viewport with the new size
*/
clutter_stage_ensure_viewport (stage);
}
}
break;
case PropertyNotify:
if (xevent->xproperty.atom == backend_x11->atom_NET_WM_STATE &&
xevent->xproperty.window == stage_xwindow &&
!stage_x11->is_foreign_xwin)
{
Atom type;
gint format;
gulong n_items, bytes_after;
guchar *data = NULL;
gboolean fullscreen_set = FALSE;
clutter_x11_trap_x_errors ();
XGetWindowProperty (backend_x11->xdpy, stage_xwindow,
backend_x11->atom_NET_WM_STATE,
0, G_MAXLONG,
False, XA_ATOM,
&type, &format, &n_items,
&bytes_after, &data);
clutter_x11_untrap_x_errors ();
if (type != None && data != NULL)
{
gboolean is_fullscreen = FALSE;
Atom *atoms = (Atom *) data;
gulong i;
for (i = 0; i < n_items; i++)
{
if (atoms[i] == backend_x11->atom_NET_WM_STATE_FULLSCREEN)
fullscreen_set = TRUE;
}
is_fullscreen = _clutter_stage_is_fullscreen (stage_cogl->wrapper);
if (fullscreen_set != is_fullscreen)
{
if (fullscreen_set)
_clutter_stage_update_state (stage_cogl->wrapper,
0,
CLUTTER_STAGE_STATE_FULLSCREEN);
else
_clutter_stage_update_state (stage_cogl->wrapper,
CLUTTER_STAGE_STATE_FULLSCREEN,
0);
}
XFree (data);
}
}
break;
case FocusIn:
if (!_clutter_stage_is_activated (stage_cogl->wrapper))
{
_clutter_stage_update_state (stage_cogl->wrapper,
0,
CLUTTER_STAGE_STATE_ACTIVATED);
}
break;
case FocusOut:
if (_clutter_stage_is_activated (stage_cogl->wrapper))
{
_clutter_stage_update_state (stage_cogl->wrapper,
CLUTTER_STAGE_STATE_ACTIVATED,
0);
}
break;
case EnterNotify:
#if HAVE_XFIXES
if (!stage_x11->is_cursor_visible && !stage_x11->cursor_hidden_xfixes)
{
XFixesHideCursor (backend_x11->xdpy, stage_x11->xwin);
stage_x11->cursor_hidden_xfixes = TRUE;
}
#endif
break;
case LeaveNotify:
#if HAVE_XFIXES
if (stage_x11->cursor_hidden_xfixes)
{
XFixesShowCursor (backend_x11->xdpy, stage_x11->xwin);
stage_x11->cursor_hidden_xfixes = FALSE;
}
#endif
break;
case Expose:
{
XExposeEvent *expose = (XExposeEvent *) xevent;
cairo_rectangle_int_t clip;
CLUTTER_NOTE (EVENT,
"expose for stage: %s[%p], win:0x%x - "
"redrawing area (x: %d, y: %d, width: %d, height: %d)",
_clutter_actor_get_debug_name (CLUTTER_ACTOR (stage)),
stage,
(unsigned int) stage_xwindow,
expose->x,
expose->y,
expose->width,
expose->height);
clip.x = expose->x;
clip.y = expose->y;
clip.width = expose->width;
clip.height = expose->height;
clutter_actor_queue_redraw_with_clip (CLUTTER_ACTOR (stage), &clip);
}
break;
case DestroyNotify:
CLUTTER_NOTE (EVENT,
"Destroy notification received for stage %s[%p], win:0x%x",
_clutter_actor_get_debug_name (CLUTTER_ACTOR (stage)),
stage,
(unsigned int) stage_xwindow);
event->any.type = CLUTTER_DESTROY_NOTIFY;
event->any.stage = stage;
res = CLUTTER_TRANSLATE_QUEUE;
break;
case ClientMessage:
CLUTTER_NOTE (EVENT, "Client message for stage %s[%p], win:0x%x",
_clutter_actor_get_debug_name (CLUTTER_ACTOR (stage)),
stage,
(unsigned int) stage_xwindow);
if (handle_wm_protocols_event (backend_x11, stage_x11, xevent))
{
event->any.type = CLUTTER_DELETE;
event->any.stage = stage;
res = CLUTTER_TRANSLATE_QUEUE;
}
break;
case MappingNotify:
CLUTTER_NOTE (EVENT, "Refresh keyboard mapping");
XRefreshKeyboardMapping (&xevent->xmapping);
backend_x11->keymap_serial += 1;
res = CLUTTER_TRANSLATE_REMOVE;
break;
default:
res = CLUTTER_TRANSLATE_CONTINUE;
break;
}
return res;
}
static void
clutter_glx_texture_pixmap_create_glx_pixmap (ClutterGLXTexturePixmap *texture)
{
ClutterGLXTexturePixmapPrivate *priv = texture->priv;
GLXPixmap glx_pixmap = None;
int attribs[7], i = 0, mipmap = 0;
GLXFBConfig *fbconfig;
Display *dpy;
guint depth;
Pixmap pixmap;
guint pixmap_width, pixmap_height;
ClutterBackendGLX *backend_glx;
ClutterTextureQuality quality;
CLUTTER_NOTE (TEXTURE, "Creating GLXPixmap");
backend_glx = CLUTTER_BACKEND_GLX(clutter_get_default_backend ());
dpy = clutter_x11_get_default_display ();
if (priv->use_fallback == TRUE
|| !clutter_glx_texture_pixmap_using_extension (texture))
goto cleanup;
priv->use_fallback = FALSE;
g_object_get (texture,
"pixmap-width", &pixmap_width,
"pixmap-height", &pixmap_height,
"pixmap-depth", &depth,
"pixmap", &pixmap,
NULL);
if (!pixmap)
{
goto cleanup;
}
fbconfig = get_fbconfig_for_depth (depth);
if (!fbconfig)
{
g_warning ("Could not find an FBConfig for selected pixmap");
goto cleanup;
}
attribs[i++] = GLX_TEXTURE_FORMAT_EXT;
if (depth == 24)
{
attribs[i++] = GLX_TEXTURE_FORMAT_RGB_EXT;
}
else if (depth == 32)
{
attribs[i++] = GLX_TEXTURE_FORMAT_RGBA_EXT;
}
else
{
g_warning ("Pixmap with depth bellow 24 are not supported");
goto cleanup;
}
quality = clutter_texture_get_filter_quality (CLUTTER_TEXTURE (texture));
if (quality == CLUTTER_TEXTURE_QUALITY_HIGH)
mipmap = 1;
attribs[i++] = GLX_MIPMAP_TEXTURE_EXT;
attribs[i++] = mipmap;
attribs[i++] = GLX_TEXTURE_TARGET_EXT;
attribs[i++] = GLX_TEXTURE_2D_EXT;
attribs[i++] = None;
clutter_x11_trap_x_errors ();
glx_pixmap = glXCreatePixmap (dpy,
*fbconfig,
pixmap,
attribs);
XSync (dpy, FALSE);
if (clutter_x11_untrap_x_errors ())
{
CLUTTER_NOTE (TEXTURE, "Failed to create GLXPixmap");
/* Make sure we don't think the call actually succeeded */
glx_pixmap = None;
}
g_free (fbconfig);
cleanup:
if (priv->glx_pixmap)
clutter_glx_texture_pixmap_free_glx_pixmap (texture);
if (glx_pixmap != None)
{
priv->glx_pixmap = glx_pixmap;
create_cogl_texture (CLUTTER_TEXTURE (texture), pixmap_width, pixmap_height);
CLUTTER_NOTE (TEXTURE, "Created GLXPixmap");
return;
}
else
{
priv->use_fallback = TRUE;
priv->glx_pixmap = None;
/* Some fucky logic here - we've fallen back and need to make sure
* we realize here..
*/
clutter_actor_realize (CLUTTER_ACTOR (texture));
}
}
/* TODO: remove this interface in favour of
* _clutter_stage_window_make_current () */
static void
clutter_backend_glx_ensure_context (ClutterBackend *backend,
ClutterStage *stage)
{
ClutterStageWindow *impl;
/* if there is no stage, the stage is being destroyed or it has no
* implementation attached to it then we clear the GL context
*/
if (stage == NULL ||
(CLUTTER_PRIVATE_FLAGS (stage) & CLUTTER_ACTOR_IN_DESTRUCTION) ||
((impl = _clutter_stage_get_window (stage)) == NULL))
{
ClutterBackendX11 *backend_x11;
backend_x11 = CLUTTER_BACKEND_X11 (backend);
CLUTTER_NOTE (MULTISTAGE, "Clearing all context");
glXMakeContextCurrent (backend_x11->xdpy, None, None, NULL);
}
else
{
ClutterBackendGLX *backend_glx;
ClutterBackendX11 *backend_x11;
ClutterStageGLX *stage_glx;
ClutterStageX11 *stage_x11;
GLXDrawable drawable;
g_assert (impl != NULL);
stage_glx = CLUTTER_STAGE_GLX (impl);
stage_x11 = CLUTTER_STAGE_X11 (impl);
backend_glx = CLUTTER_BACKEND_GLX (backend);
backend_x11 = CLUTTER_BACKEND_X11 (backend);
drawable = stage_glx->glxwin ? stage_glx->glxwin : stage_x11->xwin;
CLUTTER_NOTE (BACKEND,
"Setting context for stage of type %s, window: 0x%x",
G_OBJECT_TYPE_NAME (impl),
(unsigned int) drawable);
/* no GL context to set */
if (backend_glx->gl_context == None)
return;
clutter_x11_trap_x_errors ();
/* we might get here inside the final dispose cycle, so we
* need to handle this gracefully
*/
if (drawable == None)
{
GLXDrawable dummy_drawable;
CLUTTER_NOTE (BACKEND,
"Received a stale stage, clearing all context");
if (backend_glx->dummy_glxwin)
dummy_drawable = backend_glx->dummy_glxwin;
else
dummy_drawable = backend_glx->dummy_xwin;
if (dummy_drawable == None)
glXMakeContextCurrent (backend_x11->xdpy, None, None, NULL);
else
{
glXMakeContextCurrent (backend_x11->xdpy,
dummy_drawable,
dummy_drawable,
backend_glx->gl_context);
}
}
else
{
CLUTTER_NOTE (BACKEND,
"MakeContextCurrent dpy: %p, window: 0x%x (%s), context: %p",
backend_x11->xdpy,
(unsigned int) drawable,
stage_x11->is_foreign_xwin ? "foreign" : "native",
backend_glx->gl_context);
glXMakeContextCurrent (backend_x11->xdpy,
drawable,
drawable,
backend_glx->gl_context);
/*
* In case we are using GLX_SGI_swap_control for vblank syncing we need call
* glXSwapIntervalSGI here to make sure that it affects the current drawable.
*/
if (backend_glx->vblank_type == CLUTTER_VBLANK_GLX_SWAP && backend_glx->swap_interval != NULL)
backend_glx->swap_interval (1);
}
if (clutter_x11_untrap_x_errors ())
g_critical ("Unable to make the stage window 0x%x the current "
"GLX drawable",
(unsigned int) drawable);
}
}
static void
clutter_backend_egl_ensure_context (ClutterBackend *backend,
ClutterStage *stage)
{
ClutterBackendEGL *backend_egl = CLUTTER_BACKEND_EGL (backend);
ClutterStageWindow *impl;
if (stage == NULL ||
(CLUTTER_PRIVATE_FLAGS (stage) & CLUTTER_ACTOR_IN_DESTRUCTION) ||
((impl = _clutter_stage_get_window (stage)) == NULL))
{
CLUTTER_NOTE (BACKEND, "Clearing EGL context");
eglMakeCurrent (backend_egl->edpy,
EGL_NO_SURFACE,
EGL_NO_SURFACE,
EGL_NO_CONTEXT);
}
else
{
ClutterStageEGL *stage_egl;
ClutterStageX11 *stage_x11;
g_assert (impl != NULL);
CLUTTER_NOTE (MULTISTAGE, "Setting context for stage of type %s [%p]",
g_type_name (G_OBJECT_TYPE (impl)),
impl);
stage_egl = CLUTTER_STAGE_EGL (impl);
stage_x11 = CLUTTER_STAGE_X11 (impl);
if (backend_egl->egl_context == EGL_NO_CONTEXT)
return;
clutter_x11_trap_x_errors ();
/* we might get here inside the final dispose cycle, so we
* need to handle this gracefully
*/
if (stage_x11->xwin == None ||
stage_egl->egl_surface == EGL_NO_SURFACE)
{
CLUTTER_NOTE (MULTISTAGE,
"Received a stale stage, clearing all context");
if (backend_egl->dummy_surface == EGL_NO_SURFACE)
eglMakeCurrent (backend_egl->edpy,
EGL_NO_SURFACE,
EGL_NO_SURFACE,
EGL_NO_CONTEXT);
else
eglMakeCurrent (backend_egl->edpy,
backend_egl->dummy_surface,
backend_egl->dummy_surface,
backend_egl->egl_context);
}
else
{
CLUTTER_NOTE (MULTISTAGE, "Setting real surface current");
eglMakeCurrent (backend_egl->edpy,
stage_egl->egl_surface,
stage_egl->egl_surface,
backend_egl->egl_context);
}
if (clutter_x11_untrap_x_errors ())
g_critical ("Unable to make the stage window 0x%x the current "
"EGLX drawable",
(int) stage_x11->xwin);
}
}
