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9244f0f113
mutter/src/compositor/compositor.c
Owen W. Taylor 9244f0f113 Move window repair and reshape to a paint function 
Add a paint function that checks all windows for repair and
shape updates; this:

 - simplifies the logic for when a window needs to be repaired
 - avoids duplicate work when we get multiple damage effects
 - avoids the need to look ahead in the event queue

Instead of relying on repair to implicitly resize the
MutterWindow actor, set the size explicitly when the core
code updates the geometry. (This is needed because we haven't
repaired yet when we start an animation, and the animation
may depend on the size to, e.g., rescale from the center.)

Because the core geometry update happens before we start
maximize/unmaximize effects we need to work around this by
passing both the old and new geometry to the compositor.

http://bugzilla.gnome.org/show_bug.cgi?id=587251
2009-07-06 00:04:41 +01:00

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
#include <config.h>
#include <clutter/x11/clutter-x11.h>
#include "screen.h"
#include "errors.h"
#include "window.h"
#include "compositor-private.h"
#include "compositor-mutter.h"
#include "xprops.h"
#include "prefs.h"
#include "mutter-window-private.h"
#include "../core/window-private.h" /* to check window->hidden */
#include "../core/display-private.h" /* for meta_display_lookup_x_window() */
#include <X11/extensions/shape.h>
#include <X11/extensions/Xcomposite.h>
/* #define DEBUG_TRACE g_print */
#define DEBUG_TRACE(X)
static inline gboolean
composite_at_least_version (MetaDisplay *display, int maj, int min)
{
static int major = -1;
static int minor = -1;
if (major == -1)
meta_display_get_compositor_version (display, &major, &minor);
return (major > maj || (major == maj && minor >= min));
}
static MutterWindow*
find_window_for_screen (MetaScreen *screen, Window xwindow)
{
MetaCompScreen *info = meta_screen_get_compositor_data (screen);
if (info == NULL)
return NULL;
return g_hash_table_lookup (info->windows_by_xid,
(gpointer) xwindow);
}
static MutterWindow *
find_window_in_display (MetaDisplay *display, Window xwindow)
{
GSList *index;
MetaWindow *window = meta_display_lookup_x_window (display, xwindow);
if (window)
{
void *priv = meta_window_get_compositor_private (window);
if (priv)
return priv;
}
for (index = meta_display_get_screens (display);
index;
index = index->next)
{
MutterWindow *cw = find_window_for_screen (index->data, xwindow);
if (cw != NULL)
return cw;
}
return NULL;
}
static MutterWindow *
find_window_for_child_window_in_display (MetaDisplay *display, Window xwindow)
{
Window ignored1, *ignored2, parent;
guint ignored_children;
XQueryTree (meta_display_get_xdisplay (display), xwindow, &ignored1,
&parent, &ignored2, &ignored_children);
if (parent != None)
return find_window_in_display (display, parent);
return NULL;
}
static void sync_actor_stacking (GList *windows);
static void
mutter_finish_workspace_switch (MetaCompScreen *info)
{
#ifdef FIXME
GList *last = g_list_last (info->windows);
GList *l;
/* printf ("FINISHING DESKTOP SWITCH\n"); */
if (!meta_prefs_get_live_hidden_windows ())
{
/* When running in the traditional mode where hidden windows get
* unmapped, we need to fix up the map status for each window, since
* we are ignoring unmap requests during the effect.
*/
l = last;
while (l)
{
mutter_window_finish_workspace_switch (l->data);
l = l->prev;
}
}
#endif
/*
* Fix up stacking order in case the plugin messed it up.
*/
sync_actor_stacking (info->windows);
/* printf ("... FINISHED DESKTOP SWITCH\n"); */
}
void
mutter_switch_workspace_completed (MetaScreen *screen)
{
MetaCompScreen *info = meta_screen_get_compositor_data (screen);
/* FIXME -- must redo stacking order */
info->switch_workspace_in_progress--;
if (info->switch_workspace_in_progress < 0)
{
g_warning ("Error in workspace_switch accounting!");
info->switch_workspace_in_progress = 0;
}
if (!info->switch_workspace_in_progress)
mutter_finish_workspace_switch (info);
}
void
meta_compositor_destroy (MetaCompositor *compositor)
{
clutter_threads_remove_repaint_func (compositor->repaint_func_id);
}
static void
add_win (MetaWindow *window)
{
MetaScreen *screen = meta_window_get_screen (window);
MetaCompScreen *info = meta_screen_get_compositor_data (screen);
g_return_if_fail (info != NULL);
mutter_window_new (window);
sync_actor_stacking (info->windows);
}
static void
process_damage (MetaCompositor *compositor,
XDamageNotifyEvent *event)
{
MutterWindow *cw = find_window_in_display (compositor->display, event->drawable);
if (cw == NULL)
return;
mutter_window_process_damage (cw, event);
}
#ifdef HAVE_SHAPE
static void
process_shape (MetaCompositor *compositor,
XShapeEvent *event)
{
MutterWindow *cw = find_window_in_display (compositor->display,
event->window);
if (cw == NULL)
return;
if (event->kind == ShapeBounding)
{
mutter_window_update_shape (cw, event->shaped);
}
}
#endif
static void
process_property_notify (MetaCompositor *compositor,
XPropertyEvent *event)
{
MetaDisplay *display = compositor->display;
/* Check for the opacity changing */
if (event->atom == compositor->atom_net_wm_window_opacity)
{
MutterWindow *cw = find_window_in_display (display, event->window);
if (!cw)
{
/* Applications can set this for their toplevel windows, so
* this must be propagated to the window managed by the compositor
*/
cw = find_window_for_child_window_in_display (display,
event->window);
}
if (!cw)
{
DEBUG_TRACE ("process_property_notify: opacity, early exit\n");
return;
}
mutter_window_update_opacity (cw);
}
else if (event->atom == meta_display_get_atom (display,
META_ATOM__NET_WM_WINDOW_TYPE))
{
MutterWindow *cw = find_window_in_display (display, event->window);
if (!cw)
{
DEBUG_TRACE ("process_property_notify: net_wm_type, early exit\n");
return;
}
mutter_window_update_window_type (cw);
DEBUG_TRACE ("process_property_notify: net_wm_type\n");
return;
}
DEBUG_TRACE ("process_property_notify: unknown\n");
}
static Window
get_output_window (MetaScreen *screen)
{
MetaDisplay *display = meta_screen_get_display (screen);
Display *xdisplay = meta_display_get_xdisplay (display);
Window output, xroot;
XWindowAttributes attr;
long event_mask;
xroot = meta_screen_get_xroot (screen);
event_mask = FocusChangeMask |
ExposureMask |
EnterWindowMask | LeaveWindowMask |
PointerMotionMask |
PropertyChangeMask |
ButtonPressMask | ButtonReleaseMask |
KeyPressMask | KeyReleaseMask;
output = XCompositeGetOverlayWindow (xdisplay, xroot);
if (XGetWindowAttributes (xdisplay, output, &attr))
{
event_mask |= attr.your_event_mask;
}
XSelectInput (xdisplay, output, event_mask);
return output;
}
ClutterActor *
mutter_get_stage_for_screen (MetaScreen *screen)
{
MetaCompScreen *info = meta_screen_get_compositor_data (screen);
if (!info)
return NULL;
return info->stage;
}
ClutterActor *
mutter_get_overlay_group_for_screen (MetaScreen *screen)
{
MetaCompScreen *info = meta_screen_get_compositor_data (screen);
if (!info)
return NULL;
return info->overlay_group;
}
ClutterActor *
mutter_get_window_group_for_screen (MetaScreen *screen)
{
MetaCompScreen *info = meta_screen_get_compositor_data (screen);
if (!info)
return NULL;
return info->window_group;
}
GList *
mutter_get_windows (MetaScreen *screen)
{
MetaCompScreen *info = meta_screen_get_compositor_data (screen);
if (!info)
return NULL;
return info->windows;
}
static void
do_set_stage_input_region (MetaScreen *screen,
XserverRegion region)
{
MetaCompScreen *info = meta_screen_get_compositor_data (screen);
MetaDisplay *display = meta_screen_get_display (screen);
Display *xdpy = meta_display_get_xdisplay (display);
Window xstage = clutter_x11_get_stage_window (CLUTTER_STAGE (info->stage));
XFixesSetWindowShapeRegion (xdpy, xstage, ShapeInput, 0, 0, region);
XFixesSetWindowShapeRegion (xdpy, info->output, ShapeInput, 0, 0, region);
}
void
mutter_set_stage_input_region (MetaScreen *screen,
XserverRegion region)
{
MetaCompScreen *info = meta_screen_get_compositor_data (screen);
MetaDisplay *display = meta_screen_get_display (screen);
Display *xdpy = meta_display_get_xdisplay (display);
if (info->stage && info->output)
{
do_set_stage_input_region (screen, region);
}
else
{
/* Reset info->pending_input_region if one existed before and set the new
* one to use it later. */
if (info->pending_input_region)
{
XFixesDestroyRegion (xdpy, info->pending_input_region);
info->pending_input_region = None;
}
if (region != None)
{
info->pending_input_region = XFixesCreateRegion (xdpy, NULL, 0);
XFixesCopyRegion (xdpy, info->pending_input_region, region);
}
}
}
void
mutter_empty_stage_input_region (MetaScreen *screen)
{
/* Using a static region here is a bit hacky, but Metacity never opens more than
* one XDisplay, so it works fine. */
static XserverRegion region = None;
if (region == None)
{
MetaDisplay *display = meta_screen_get_display (screen);
Display *xdpy = meta_display_get_xdisplay (display);
region = XFixesCreateRegion (xdpy, NULL, 0);
}
mutter_set_stage_input_region (screen, region);
}
void
meta_compositor_manage_screen (MetaCompositor *compositor,
MetaScreen *screen)
{
MetaCompScreen *info;
MetaDisplay *display = meta_screen_get_display (screen);
Display *xdisplay = meta_display_get_xdisplay (display);
int screen_number = meta_screen_get_screen_number (screen);
Window xroot = meta_screen_get_xroot (screen);
Window xwin;
gint width, height;
XWindowAttributes attr;
long event_mask;
/* Check if the screen is already managed */
if (meta_screen_get_compositor_data (screen))
return;
meta_error_trap_push_with_return (display);
XCompositeRedirectSubwindows (xdisplay, xroot, CompositeRedirectManual);
XSync (xdisplay, FALSE);
if (meta_error_trap_pop_with_return (display, FALSE))
{
g_warning ("Another compositing manager is running on screen %i",
screen_number);
return;
}
info = g_new0 (MetaCompScreen, 1);
/*
* We use an empty input region for Clutter as a default because that allows
* the user to interact with all the windows displayed on the screen.
* We have to initialize info->pending_input_region to an empty region explicitly,
* because None value is used to mean that the whole screen is an input region.
*/
info->pending_input_region = XFixesCreateRegion (xdisplay, NULL, 0);
info->screen = screen;
meta_screen_set_compositor_data (screen, info);
info->output = None;
info->windows = NULL;
info->windows_by_xid = g_hash_table_new (g_direct_hash, g_direct_equal);
info->focus_window = meta_display_get_focus_window (display);
meta_screen_set_cm_selection (screen);
info->stage = clutter_stage_get_default ();
meta_screen_get_size (screen, &width, &height);
clutter_actor_set_size (info->stage, width, height);
xwin = clutter_x11_get_stage_window (CLUTTER_STAGE (info->stage));
event_mask = FocusChangeMask |
ExposureMask |
EnterWindowMask | LeaveWindowMask |
PointerMotionMask |
PropertyChangeMask |
ButtonPressMask | ButtonReleaseMask |
KeyPressMask | KeyReleaseMask |
StructureNotifyMask;
if (XGetWindowAttributes (xdisplay, xwin, &attr))
{
event_mask |= attr.your_event_mask;
}
XSelectInput (xdisplay, xwin, event_mask);
info->window_group = clutter_group_new ();
info->overlay_group = clutter_group_new ();
info->hidden_group = clutter_group_new ();
clutter_container_add (CLUTTER_CONTAINER (info->stage),
info->window_group,
info->overlay_group,
info->hidden_group,
NULL);
clutter_actor_hide (info->hidden_group);
info->plugin_mgr =
mutter_plugin_manager_new (screen);
if (!mutter_plugin_manager_load (info->plugin_mgr))
g_critical ("failed to load plugins");
if (!mutter_plugin_manager_initialize (info->plugin_mgr))
g_critical ("failed to initialize plugins");
/*
* Delay the creation of the overlay window as long as we can, to avoid
* blanking out the screen. This means that during the plugin loading, the
* overlay window is not accessible; if the plugin needs to access it
* directly, it should hook into the "show" signal on stage, and do
* its stuff there.
*/
info->output = get_output_window (screen);
XReparentWindow (xdisplay, xwin, info->output, 0, 0);
/* Make sure there isn't any left-over output shape on the
* overlay window by setting the whole screen to be an
* output region.
*
* Note: there doesn't seem to be any real chance of that
* because the X server will destroy the overlay window
* when the last client using it exits.
*/
XFixesSetWindowShapeRegion (xdisplay, info->output, ShapeBounding, 0, 0, None);
do_set_stage_input_region (screen, info->pending_input_region);
if (info->pending_input_region != None)
{
XFixesDestroyRegion (xdisplay, info->pending_input_region);
info->pending_input_region = None;
}
clutter_actor_show (info->overlay_group);
clutter_actor_show (info->stage);
}
void
meta_compositor_unmanage_screen (MetaCompositor *compositor,
MetaScreen *screen)
{
}
void
meta_compositor_add_window (MetaCompositor *compositor,
MetaWindow *window)
{
MetaScreen *screen = meta_window_get_screen (window);
MetaDisplay *display = meta_screen_get_display (screen);
DEBUG_TRACE ("meta_compositor_add_window\n");
meta_error_trap_push (display);
add_win (window);
meta_error_trap_pop (display, FALSE);
}
void
meta_compositor_remove_window (MetaCompositor *compositor,
MetaWindow *window)
{
MutterWindow *cw = NULL;
DEBUG_TRACE ("meta_compositor_remove_window\n");
cw = MUTTER_WINDOW (meta_window_get_compositor_private (window));
if (!cw)
return;
mutter_window_destroy (cw);
}
void
meta_compositor_set_updates (MetaCompositor *compositor,
MetaWindow *window,
gboolean updates)
{
}
gboolean
meta_compositor_process_event (MetaCompositor *compositor,
XEvent *event,
MetaWindow *window)
{
if (window)
{
MetaCompScreen *info;
MetaScreen *screen;
screen = meta_window_get_screen (window);
info = meta_screen_get_compositor_data (screen);
if (mutter_plugin_manager_xevent_filter (info->plugin_mgr, event))
{
DEBUG_TRACE ("meta_compositor_process_event (filtered,window==NULL)\n");
return TRUE;
}
}
else
{
GSList *l;
l = meta_display_get_screens (compositor->display);
while (l)
{
MetaScreen *screen = l->data;
MetaCompScreen *info;
info = meta_screen_get_compositor_data (screen);
if (mutter_plugin_manager_xevent_filter (info->plugin_mgr, event))
{
DEBUG_TRACE ("meta_compositor_process_event (filtered,window==NULL)\n");
return TRUE;
}
l = l->next;
}
}
/*
* This trap is so that none of the compositor functions cause
* X errors. This is really a hack, but I'm afraid I don't understand
* enough about Metacity/X to know how else you are supposed to do it
*/
meta_error_trap_push (compositor->display);
switch (event->type)
{
case PropertyNotify:
process_property_notify (compositor, (XPropertyEvent *) event);
break;
default:
if (event->type == meta_display_get_damage_event_base (compositor->display) + XDamageNotify)
{
DEBUG_TRACE ("meta_compositor_process_event (process_damage)\n");
process_damage (compositor, (XDamageNotifyEvent *) event);
}
#ifdef HAVE_SHAPE
else if (event->type == meta_display_get_shape_event_base (compositor->display) + ShapeNotify)
{
DEBUG_TRACE ("meta_compositor_process_event (process_shape)\n");
process_shape (compositor, (XShapeEvent *) event);
}
#endif /* HAVE_SHAPE */
break;
}
meta_error_trap_pop (compositor->display, FALSE);
/* Clutter needs to know about MapNotify events otherwise it will
think the stage is invisible */
if (event->type == MapNotify)
clutter_x11_handle_event (event);
/* The above handling is basically just "observing" the events, so we return
* FALSE to indicate that the event should not be filtered out; if we have
* GTK+ windows in the same process, GTK+ needs the ConfigureNotify event, for example.
*/
return FALSE;
}
void
meta_compositor_map_window (MetaCompositor *compositor,
MetaWindow *window)
{
MutterWindow *cw = MUTTER_WINDOW (meta_window_get_compositor_private (window));
DEBUG_TRACE ("meta_compositor_map_window\n");
if (!cw)
return;
mutter_window_map (cw);
}
void
meta_compositor_unmap_window (MetaCompositor *compositor,
MetaWindow *window)
{
MutterWindow *cw = MUTTER_WINDOW (meta_window_get_compositor_private (window));
DEBUG_TRACE ("meta_compositor_unmap_window\n");
if (!cw)
return;
mutter_window_unmap (cw);
}
void
meta_compositor_minimize_window (MetaCompositor *compositor,
MetaWindow *window,
MetaRectangle *window_rect,
MetaRectangle *icon_rect)
{
MutterWindow *cw = MUTTER_WINDOW (meta_window_get_compositor_private (window));
MetaScreen *screen = meta_window_get_screen (window);
MetaCompScreen *info = meta_screen_get_compositor_data (screen);
DEBUG_TRACE ("meta_compositor_minimize_window\n");
g_return_if_fail (info);
if (!cw)
return;
mutter_window_minimize (cw);
}
void
meta_compositor_unminimize_window (MetaCompositor *compositor,
MetaWindow *window,
MetaRectangle *window_rect,
MetaRectangle *icon_rect)
{
#if 0
MutterWindow *cw = MUTTER_WINDOW (meta_window_get_compositor_private (window));
MetaScreen *screen = meta_window_get_screen (window);
MetaCompScreen *info = meta_screen_get_compositor_data (screen);
g_return_if_fail (info);
if (!cw)
return;
/*
* If there is a plugin manager, try to run an effect; if no effect is
* executed, hide the actor.
*/
cw->priv->unminimize_in_progress++;
if (!info->plugin_mgr ||
!mutter_plugin_manager_event_simple (info->plugin_mgr,
cw,
MUTTER_PLUGIN_UNMINIMIZE))
{
cw->priv->is_minimized = TRUE;
cw->priv->minimize_in_progress--;
}
#else
MutterWindow *cw = MUTTER_WINDOW (meta_window_get_compositor_private (window));
DEBUG_TRACE ("meta_compositor_unminimize_window\n");
if (!cw)
return;
mutter_window_map (cw);
#endif
}
void
meta_compositor_maximize_window (MetaCompositor *compositor,
MetaWindow *window,
MetaRectangle *old_rect,
MetaRectangle *new_rect)
{
MutterWindow *cw = MUTTER_WINDOW (meta_window_get_compositor_private (window));
DEBUG_TRACE ("meta_compositor_maximize_window\n");
if (!cw)
return;
mutter_window_maximize (cw, old_rect, new_rect);
}
void
meta_compositor_unmaximize_window (MetaCompositor *compositor,
MetaWindow *window,
MetaRectangle *old_rect,
MetaRectangle *new_rect)
{
MutterWindow *cw = MUTTER_WINDOW (meta_window_get_compositor_private (window));
DEBUG_TRACE ("meta_compositor_unmaximize_window\n");
if (!cw)
return;
mutter_window_unmaximize (cw, old_rect, new_rect);
}
void
meta_compositor_update_workspace_geometry (MetaCompositor *compositor,
MetaWorkspace *workspace)
{
#if 0
/* FIXME -- should do away with this function in favour of MetaWorkspace
* signal.
*/
MetaScreen *screen = meta_workspace_get_screen (workspace);
MetaCompScreen *info;
MutterPluginManager *mgr;
DEBUG_TRACE ("meta_compositor_update_workspace_geometry\n");
info = meta_screen_get_compositor_data (screen);
mgr = info->plugin_mgr;
if (!mgr || !workspace)
return;
mutter_plugin_manager_update_workspace (mgr, workspace);
#endif
}
void
meta_compositor_switch_workspace (MetaCompositor *compositor,
MetaScreen *screen,
MetaWorkspace *from,
MetaWorkspace *to,
MetaMotionDirection direction)
{
MetaCompScreen *info;
gint to_indx, from_indx;
info = meta_screen_get_compositor_data (screen);
to_indx = meta_workspace_index (to);
from_indx = meta_workspace_index (from);
DEBUG_TRACE ("meta_compositor_switch_workspace\n");
if (!meta_prefs_get_live_hidden_windows ())
{
GList *l;
/*
* We are in the traditional mode where hidden windows get unmapped,
* we need to pre-calculate the map status of each window so that once
* the effect finishes we can put everything into proper order
* (we need to ignore the map notifications during the effect so that
* actors do not just disappear while the effect is running).
*/
for (l = info->windows; l != NULL; l = l->next)
{
MutterWindow *cw = l->data;
MetaWindow *mw = mutter_window_get_meta_window (cw);
gboolean sticky;
gint workspace = -1;
sticky = (!mw || meta_window_is_on_all_workspaces (mw));
if (!sticky)
{
MetaWorkspace *w;
w = meta_window_get_workspace (mw);
workspace = meta_workspace_index (w);
/*
* If the window is not on the target workspace, mark it for
* unmap.
*/
mutter_window_queue_map_change (cw, to_indx == workspace);
}
}
}
info->switch_workspace_in_progress++;
if (!info->plugin_mgr ||
!mutter_plugin_manager_switch_workspace (info->plugin_mgr,
(const GList **)&info->windows,
from_indx,
to_indx,
direction))
{
info->switch_workspace_in_progress--;
/* We have to explicitely call this to fix up stacking order of the
* actors; this is because the abs stacking position of actors does not
* necessarily change during the window hiding/unhiding, only their
* relative position toward the destkop window.
*/
mutter_finish_workspace_switch (info);
}
}
static void
sync_actor_stacking (GList *windows)
{
GList *tmp;
/* NB: The first entry in the list is stacked the lowest */
for (tmp = g_list_last (windows); tmp != NULL; tmp = tmp->prev)
{
MutterWindow *cw = tmp->data;
clutter_actor_lower_bottom (CLUTTER_ACTOR (cw));
}
}
void
meta_compositor_sync_stack (MetaCompositor *compositor,
MetaScreen *screen,
GList *stack)
{
GList *old_stack;
MetaCompScreen *info = meta_screen_get_compositor_data (screen);
DEBUG_TRACE ("meta_compositor_sync_stack\n");
/* This is painful because hidden windows that we are in the process
* of animating out of existence. They'll be at the bottom of the
* stack of X windows, but we want to leave them in their old position
* until the animation effect finishes.
*/
/* Sources: first window is the highest */
stack = g_list_copy (stack); /* The new stack of MetaWindow */
old_stack = g_list_reverse (info->windows); /* The old stack of MutterWindow */
info->windows = NULL;
while (TRUE)
{
MutterWindow *old_actor = NULL, *stack_actor = NULL, *actor;
MetaWindow *old_window = NULL, *stack_window = NULL, *window;
/* Find the remaining top actor in our existing stack (ignoring
* windows that have been hidden and are no longer animating) */
while (old_stack)
{
old_actor = old_stack->data;
old_window = mutter_window_get_meta_window (old_actor);
if (old_window->hidden &&
!mutter_window_effect_in_progress (old_actor, TRUE))
old_stack = g_list_delete_link (old_stack, old_stack);
else
break;
}
/* And the remaining top actor in the new stack */
while (stack)
{
stack_window = stack->data;
stack_actor = MUTTER_WINDOW (meta_window_get_compositor_private (stack_window));
if (!stack_actor)
{
meta_verbose ("Failed to find corresponding MutterWindow "
"for window %s\n", meta_window_get_description (stack_window));
stack = g_list_delete_link (stack, stack);
}
else
break;
}
if (!old_actor && !stack_actor) /* Nothing more to stack */
break;
/* We usually prefer the window in the new stack, but if if we
* found a hidden window in the process of being animated out
* of existence in the old stack we use that instead. We've
* filtered out non-animating hidden windows above.
*/
if (old_actor &&
(!stack_actor || old_window->hidden))
{
actor = old_actor;
window = old_window;
}
else
{
actor = stack_actor;
window = stack_window;
}
/* OK, we know what actor we want next. Add it to our window
* list, and remove it from both source lists. (It will
* be at the front of at least one, hopefully it will be
* near the front of the other.)
*/
info->windows = g_list_prepend (info->windows, actor);
stack = g_list_remove (stack, window);
old_stack = g_list_remove (old_stack, actor);
}
sync_actor_stacking (info->windows);
}
void
meta_compositor_set_window_hidden (MetaCompositor *compositor,
MetaScreen *screen,
MetaWindow *window,
gboolean hidden)
{
MutterWindow *cw = MUTTER_WINDOW (meta_window_get_compositor_private (window));
DEBUG_TRACE ("meta_compositor_set_window_hidden\n");
if (!cw)
return;
mutter_window_set_hidden (cw, hidden);
}
void
meta_compositor_sync_window_geometry (MetaCompositor *compositor,
MetaWindow *window)
{
MutterWindow *cw = MUTTER_WINDOW (meta_window_get_compositor_private (window));
MetaScreen *screen = meta_window_get_screen (window);
MetaCompScreen *info = meta_screen_get_compositor_data (screen);
DEBUG_TRACE ("meta_compositor_sync_window_geometry\n");
g_return_if_fail (info);
if (!cw)
return;
mutter_window_sync_actor_position (cw);
}
void
meta_compositor_sync_screen_size (MetaCompositor *compositor,
MetaScreen *screen,
guint width,
guint height)
{
MetaCompScreen *info = meta_screen_get_compositor_data (screen);
DEBUG_TRACE ("meta_compositor_sync_screen_size\n");
g_return_if_fail (info);
clutter_actor_set_size (info->stage, width, height);
meta_verbose ("Changed size for stage on screen %d to %dx%d\n",
meta_screen_get_screen_number (screen),
width, height);
}
static void
pre_paint_windows (MetaCompScreen *info)
{
GList *l;
for (l = info->windows; l; l = l->next)
mutter_window_pre_paint (l->data);
}
static gboolean
mutter_repaint_func (gpointer data)
{
MetaCompositor *compositor = data;
GSList *screens = meta_display_get_screens (compositor->display);
GSList *l;
for (l = screens; l; l = l->next)
{
MetaScreen *screen = l->data;
MetaCompScreen *info = meta_screen_get_compositor_data (screen);
if (!info)
continue;
pre_paint_windows (info);
}
return TRUE;
}
MetaCompositor *
meta_compositor_new (MetaDisplay *display)
{
char *atom_names[] = {
"_XROOTPMAP_ID",
"_XSETROOT_ID",
"_NET_WM_WINDOW_OPACITY",
};
Atom atoms[G_N_ELEMENTS(atom_names)];
MetaCompositor *compositor;
Display *xdisplay = meta_display_get_xdisplay (display);
if (!composite_at_least_version (display, 0, 3))
return NULL;
compositor = g_new0 (MetaCompositor, 1);
compositor->display = display;
if (g_getenv("MUTTER_DISABLE_MIPMAPS"))
compositor->no_mipmaps = TRUE;
meta_verbose ("Creating %d atoms\n", (int) G_N_ELEMENTS (atom_names));
XInternAtoms (xdisplay, atom_names, G_N_ELEMENTS (atom_names),
False, atoms);
compositor->atom_x_root_pixmap = atoms[0];
compositor->atom_x_set_root = atoms[1];
compositor->atom_net_wm_window_opacity = atoms[2];
compositor->repaint_func_id = clutter_threads_add_repaint_func (mutter_repaint_func,
compositor,
NULL);
return compositor;
}
Window
mutter_get_overlay_window (MetaScreen *screen)
{
MetaCompScreen *info = meta_screen_get_compositor_data (screen);
return info->output;
}
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