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c0d791cd6e
mutter/src/compositor/meta-window-actor.c
Jasper St. Pierre c0d791cd6e window: Update the shape, input, and opaque regions immediately 
... and individually. It turns out that updating the opaque region
was causing the shape region to be updated, which was causing a new
shape mask to be generated and uploaded to the GPU. Considering
GTK+ regenerates the opaque region on pretty much any focus change,
this is not good.
2014-02-26 20:03:16 -05:00

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/**
* SECTION:meta-window-actor
* @title: MetaWindowActor
* @short_description: An actor representing a top-level window in the scene graph
*/
#include <config.h>
#include <math.h>
#include <clutter/x11/clutter-x11.h>
#include <cogl/cogl-texture-pixmap-x11.h>
#include <gdk/gdk.h> /* for gdk_rectangle_union() */
#include <string.h>
#include <meta/display.h>
#include <meta/errors.h>
#include "frame.h"
#include <meta/window.h>
#include <meta/meta-shaped-texture.h>
#include "xprops.h"
#include "compositor-private.h"
#include "meta-shaped-texture-private.h"
#include "meta-shadow-factory-private.h"
#include "meta-window-actor-private.h"
#include "meta-texture-rectangle.h"
#include "region-utils.h"
#include "meta-wayland-private.h"
#include "monitor-private.h"
#include "meta-cullable.h"
#include "meta-surface-actor.h"
#include "meta-surface-actor-x11.h"
struct _MetaWindowActorPrivate
{
MetaWindow *window;
MetaScreen *screen;
MetaSurfaceActor *surface;
/* MetaShadowFactory only caches shadows that are actually in use;
* to avoid unnecessary recomputation we do two things: 1) we store
* both a focused and unfocused shadow for the window. If the window
* doesn't have different focused and unfocused shadow parameters,
* these will be the same. 2) when the shadow potentially changes we
* don't immediately unreference the old shadow, we just flag it as
* dirty and recompute it when we next need it (recompute_focused_shadow,
* recompute_unfocused_shadow.) Because of our extraction of
* size-invariant window shape, we'll often find that the new shadow
* is the same as the old shadow.
*/
MetaShadow *focused_shadow;
MetaShadow *unfocused_shadow;
/* A region that matches the shape of the window, including frame bounds */
cairo_region_t *shape_region;
/* The region we should clip to when painting the shadow */
cairo_region_t *shadow_clip;
/* Extracted size-invariant shape used for shadows */
MetaWindowShape *shadow_shape;
char * shadow_class;
guint send_frame_messages_timer;
gint64 frame_drawn_time;
guint repaint_scheduled_id;
guint allocation_changed_id;
/*
* These need to be counters rather than flags, since more plugins
* can implement same effect; the practicality of stacking effects
* might be dubious, but we have to at least handle it correctly.
*/
gint minimize_in_progress;
gint maximize_in_progress;
gint unmaximize_in_progress;
gint map_in_progress;
gint destroy_in_progress;
/* List of FrameData for recent frames */
GList *frames;
guint freeze_count;
guint visible : 1;
guint disposed : 1;
/* If set, the client needs to be sent a _NET_WM_FRAME_DRAWN
* client message using the most recent frame in ->frames */
guint needs_frame_drawn : 1;
guint repaint_scheduled : 1;
guint needs_reshape : 1;
guint recompute_focused_shadow : 1;
guint recompute_unfocused_shadow : 1;
guint needs_destroy : 1;
guint no_shadow : 1;
guint updates_frozen : 1;
};
typedef struct _FrameData FrameData;
struct _FrameData
{
int64_t frame_counter;
guint64 sync_request_serial;
gint64 frame_drawn_time;
};
enum
{
PROP_META_WINDOW = 1,
PROP_NO_SHADOW,
PROP_SHADOW_CLASS
};
static void meta_window_actor_dispose (GObject *object);
static void meta_window_actor_finalize (GObject *object);
static void meta_window_actor_constructed (GObject *object);
static void meta_window_actor_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void meta_window_actor_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void meta_window_actor_paint (ClutterActor *actor);
static gboolean meta_window_actor_get_paint_volume (ClutterActor *actor,
ClutterPaintVolume *volume);
static gboolean meta_window_actor_has_shadow (MetaWindowActor *self);
static void meta_window_actor_handle_updates (MetaWindowActor *self);
static void check_needs_reshape (MetaWindowActor *self);
static void do_send_frame_drawn (MetaWindowActor *self, FrameData *frame);
static void do_send_frame_timings (MetaWindowActor *self,
FrameData *frame,
gint refresh_interval,
gint64 presentation_time);
static void cullable_iface_init (MetaCullableInterface *iface);
G_DEFINE_TYPE_WITH_CODE (MetaWindowActor, meta_window_actor, CLUTTER_TYPE_ACTOR,
G_IMPLEMENT_INTERFACE (META_TYPE_CULLABLE, cullable_iface_init));
static void
frame_data_free (FrameData *frame)
{
g_slice_free (FrameData, frame);
}
static void
meta_window_actor_class_init (MetaWindowActorClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
GParamSpec *pspec;
g_type_class_add_private (klass, sizeof (MetaWindowActorPrivate));
object_class->dispose = meta_window_actor_dispose;
object_class->finalize = meta_window_actor_finalize;
object_class->set_property = meta_window_actor_set_property;
object_class->get_property = meta_window_actor_get_property;
object_class->constructed = meta_window_actor_constructed;
actor_class->paint = meta_window_actor_paint;
actor_class->get_paint_volume = meta_window_actor_get_paint_volume;
pspec = g_param_spec_object ("meta-window",
"MetaWindow",
"The displayed MetaWindow",
META_TYPE_WINDOW,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);
g_object_class_install_property (object_class,
PROP_META_WINDOW,
pspec);
pspec = g_param_spec_boolean ("no-shadow",
"No shadow",
"Do not add shaddow to this window",
FALSE,
G_PARAM_READWRITE);
g_object_class_install_property (object_class,
PROP_NO_SHADOW,
pspec);
pspec = g_param_spec_string ("shadow-class",
"Name of the shadow class for this window.",
"NULL means to use the default shadow class for this window type",
NULL,
G_PARAM_READWRITE);
g_object_class_install_property (object_class,
PROP_SHADOW_CLASS,
pspec);
}
static void
meta_window_actor_init (MetaWindowActor *self)
{
MetaWindowActorPrivate *priv;
priv = self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
META_TYPE_WINDOW_ACTOR,
MetaWindowActorPrivate);
priv->shadow_class = NULL;
}
static void
window_appears_focused_notify (MetaWindow *mw,
GParamSpec *arg1,
gpointer data)
{
clutter_actor_queue_redraw (CLUTTER_ACTOR (data));
}
static void
surface_allocation_changed_notify (ClutterActor *actor,
const ClutterActorBox *allocation,
ClutterAllocationFlags flags,
MetaWindowActor *self)
{
meta_window_actor_sync_actor_geometry (self, FALSE);
meta_window_actor_update_shape (self);
}
static void
surface_repaint_scheduled (MetaSurfaceActor *actor,
gpointer user_data)
{
MetaWindowActor *self = META_WINDOW_ACTOR (user_data);
MetaWindowActorPrivate *priv = self->priv;
priv->repaint_scheduled = TRUE;
}
static gboolean
is_argb32 (MetaWindowActor *self)
{
MetaWindowActorPrivate *priv = self->priv;
/* assume we're argb until we get the window (because
in practice we're drawing nothing, so we're fully
transparent)
*/
if (priv->surface)
return meta_surface_actor_is_argb32 (priv->surface);
else
return TRUE;
}
static gboolean
is_non_opaque (MetaWindowActor *self)
{
MetaWindowActorPrivate *priv = self->priv;
MetaWindow *window = priv->window;
return is_argb32 (self) || (window->opacity != 0xFF);
}
static gboolean
is_frozen (MetaWindowActor *self)
{
MetaWindowActorPrivate *priv = self->priv;
return priv->surface == NULL || priv->freeze_count > 0;
}
static void
meta_window_actor_freeze (MetaWindowActor *self)
{
MetaWindowActorPrivate *priv = self->priv;
if (priv->freeze_count == 0 && priv->surface)
meta_surface_actor_set_frozen (priv->surface, TRUE);
priv->freeze_count ++;
}
static void
meta_window_actor_thaw (MetaWindowActor *self)
{
MetaWindowActorPrivate *priv = self->priv;
if (priv->freeze_count <= 0)
g_error ("Error in freeze/thaw accounting");
priv->freeze_count--;
if (priv->freeze_count > 0)
return;
if (priv->surface)
meta_surface_actor_set_frozen (priv->surface, FALSE);
/* We sometimes ignore moves and resizes on frozen windows */
meta_window_actor_sync_actor_geometry (self, FALSE);
/* We do this now since we might be going right back into the
* frozen state */
meta_window_actor_handle_updates (self);
}
static void
set_surface (MetaWindowActor *self,
MetaSurfaceActor *surface)
{
MetaWindowActorPrivate *priv = self->priv;
if (priv->surface)
{
g_signal_handler_disconnect (priv->surface, priv->repaint_scheduled_id);
priv->repaint_scheduled_id = 0;
g_signal_handler_disconnect (priv->surface, priv->allocation_changed_id);
priv->allocation_changed_id = 0;
clutter_actor_remove_child (CLUTTER_ACTOR (self), CLUTTER_ACTOR (priv->surface));
g_object_unref (priv->surface);
}
priv->surface = surface;
if (priv->surface)
{
g_object_ref_sink (priv->surface);
priv->repaint_scheduled_id = g_signal_connect (priv->surface, "repaint-scheduled",
G_CALLBACK (surface_repaint_scheduled), self);
priv->allocation_changed_id = g_signal_connect (priv->surface, "allocation-changed",
G_CALLBACK (surface_allocation_changed_notify), self);
clutter_actor_add_child (CLUTTER_ACTOR (self), CLUTTER_ACTOR (priv->surface));
/* If the previous surface actor was frozen, start out
* frozen as well... */
meta_surface_actor_set_frozen (priv->surface, priv->freeze_count > 0);
meta_window_actor_update_shape (self);
}
}
void
meta_window_actor_update_surface (MetaWindowActor *self)
{
MetaWindowActorPrivate *priv = self->priv;
MetaWindow *window = priv->window;
MetaSurfaceActor *surface_actor;
if (window->surface)
surface_actor = window->surface->surface_actor;
else if (!meta_is_wayland_compositor ())
surface_actor = meta_surface_actor_x11_new (window);
else
surface_actor = NULL;
set_surface (self, surface_actor);
}
static void
meta_window_actor_constructed (GObject *object)
{
MetaWindowActor *self = META_WINDOW_ACTOR (object);
MetaWindowActorPrivate *priv = self->priv;
MetaWindow *window = priv->window;
priv->screen = window->screen;
meta_window_actor_update_surface (self);
meta_window_actor_update_opacity (self);
/* Start off with an empty shape region to maintain the invariant
* that it's always set */
priv->shape_region = cairo_region_create ();
}
static void
meta_window_actor_dispose (GObject *object)
{
MetaWindowActor *self = META_WINDOW_ACTOR (object);
MetaWindowActorPrivate *priv = self->priv;
MetaScreen *screen;
MetaCompScreen *info;
if (priv->disposed)
return;
priv->disposed = TRUE;
screen = priv->screen;
info = meta_screen_get_compositor_data (screen);
if (priv->send_frame_messages_timer != 0)
{
g_source_remove (priv->send_frame_messages_timer);
priv->send_frame_messages_timer = 0;
}
g_clear_pointer (&priv->shape_region, cairo_region_destroy);
g_clear_pointer (&priv->shadow_clip, cairo_region_destroy);
g_clear_pointer (&priv->shadow_class, g_free);
g_clear_pointer (&priv->focused_shadow, meta_shadow_unref);
g_clear_pointer (&priv->unfocused_shadow, meta_shadow_unref);
g_clear_pointer (&priv->shadow_shape, meta_window_shape_unref);
info->windows = g_list_remove (info->windows, (gconstpointer) self);
g_clear_object (&priv->window);
set_surface (self, NULL);
G_OBJECT_CLASS (meta_window_actor_parent_class)->dispose (object);
}
static void
meta_window_actor_finalize (GObject *object)
{
MetaWindowActor *self = META_WINDOW_ACTOR (object);
MetaWindowActorPrivate *priv = self->priv;
g_list_free_full (priv->frames, (GDestroyNotify) frame_data_free);
G_OBJECT_CLASS (meta_window_actor_parent_class)->finalize (object);
}
static void
meta_window_actor_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
MetaWindowActor *self = META_WINDOW_ACTOR (object);
MetaWindowActorPrivate *priv = self->priv;
switch (prop_id)
{
case PROP_META_WINDOW:
priv->window = g_value_dup_object (value);
g_signal_connect_object (priv->window, "notify::appears-focused",
G_CALLBACK (window_appears_focused_notify), self, 0);
break;
case PROP_NO_SHADOW:
{
gboolean newv = g_value_get_boolean (value);
if (newv == priv->no_shadow)
return;
priv->no_shadow = newv;
meta_window_actor_invalidate_shadow (self);
}
break;
case PROP_SHADOW_CLASS:
{
const char *newv = g_value_get_string (value);
if (g_strcmp0 (newv, priv->shadow_class) == 0)
return;
g_free (priv->shadow_class);
priv->shadow_class = g_strdup (newv);
meta_window_actor_invalidate_shadow (self);
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
meta_window_actor_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
MetaWindowActorPrivate *priv = META_WINDOW_ACTOR (object)->priv;
switch (prop_id)
{
case PROP_META_WINDOW:
g_value_set_object (value, priv->window);
break;
case PROP_NO_SHADOW:
g_value_set_boolean (value, priv->no_shadow);
break;
case PROP_SHADOW_CLASS:
g_value_set_string (value, priv->shadow_class);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static const char *
meta_window_actor_get_shadow_class (MetaWindowActor *self)
{
MetaWindowActorPrivate *priv = self->priv;
if (priv->shadow_class != NULL)
return priv->shadow_class;
else
{
MetaWindowType window_type = meta_window_get_window_type (priv->window);
switch (window_type)
{
case META_WINDOW_DROPDOWN_MENU:
return "dropdown-menu";
case META_WINDOW_POPUP_MENU:
return "popup-menu";
default:
{
MetaFrameType frame_type = meta_window_get_frame_type (priv->window);
return meta_frame_type_to_string (frame_type);
}
}
}
}
static void
meta_window_actor_get_shadow_params (MetaWindowActor *self,
gboolean appears_focused,
MetaShadowParams *params)
{
const char *shadow_class = meta_window_actor_get_shadow_class (self);
meta_shadow_factory_get_params (meta_shadow_factory_get_default (),
shadow_class, appears_focused,
params);
}
void
meta_window_actor_get_shape_bounds (MetaWindowActor *self,
cairo_rectangle_int_t *bounds)
{
MetaWindowActorPrivate *priv = self->priv;
cairo_region_get_extents (priv->shape_region, bounds);
}
static void
meta_window_actor_get_shadow_bounds (MetaWindowActor *self,
gboolean appears_focused,
cairo_rectangle_int_t *bounds)
{
MetaWindowActorPrivate *priv = self->priv;
MetaShadow *shadow = appears_focused ? priv->focused_shadow : priv->unfocused_shadow;
cairo_rectangle_int_t shape_bounds;
MetaShadowParams params;
meta_window_actor_get_shape_bounds (self, &shape_bounds);
meta_window_actor_get_shadow_params (self, appears_focused, &params);
meta_shadow_get_bounds (shadow,
params.x_offset + shape_bounds.x,
params.y_offset + shape_bounds.y,
shape_bounds.width,
shape_bounds.height,
bounds);
}
/* If we have an ARGB32 window that we decorate with a frame, it's
* probably something like a translucent terminal - something where
* the alpha channel represents transparency rather than a shape. We
* don't want to show the shadow through the translucent areas since
* the shadow is wrong for translucent windows (it should be
* translucent itself and colored), and not only that, will /look/
* horribly wrong - a misplaced big black blob. As a hack, what we
* want to do is just draw the shadow as normal outside the frame, and
* inside the frame draw no shadow. This is also not even close to
* the right result, but looks OK. We also apply this approach to
* windows set to be partially translucent with _NET_WM_WINDOW_OPACITY.
*/
static gboolean
clip_shadow_under_window (MetaWindowActor *self)
{
MetaWindowActorPrivate *priv = self->priv;
return is_non_opaque (self) && priv->window->frame;
}
static void
meta_window_actor_paint (ClutterActor *actor)
{
MetaWindowActor *self = META_WINDOW_ACTOR (actor);
MetaWindowActorPrivate *priv = self->priv;
gboolean appears_focused = meta_window_appears_focused (priv->window);
MetaShadow *shadow = appears_focused ? priv->focused_shadow : priv->unfocused_shadow;
/* This window got damage when obscured; we set up a timer
* to send frame completion events, but since we're drawing
* the window now (for some other reason) cancel the timer
* and send the completion events normally */
if (priv->send_frame_messages_timer != 0)
{
g_source_remove (priv->send_frame_messages_timer);
priv->send_frame_messages_timer = 0;
}
if (shadow != NULL)
{
MetaShadowParams params;
cairo_rectangle_int_t shape_bounds;
cairo_region_t *clip = priv->shadow_clip;
MetaWindow *window = priv->window;
meta_window_actor_get_shape_bounds (self, &shape_bounds);
meta_window_actor_get_shadow_params (self, appears_focused, &params);
/* The frame bounds are already subtracted from priv->shadow_clip
* if that exists.
*/
if (!clip && clip_shadow_under_window (self))
{
cairo_region_t *frame_bounds = meta_window_get_frame_bounds (priv->window);
cairo_rectangle_int_t bounds;
meta_window_actor_get_shadow_bounds (self, appears_focused, &bounds);
clip = cairo_region_create_rectangle (&bounds);
cairo_region_subtract (clip, frame_bounds);
}
meta_shadow_paint (shadow,
params.x_offset + shape_bounds.x,
params.y_offset + shape_bounds.y,
shape_bounds.width,
shape_bounds.height,
(clutter_actor_get_paint_opacity (actor) * params.opacity * window->opacity) / (255 * 255),
clip,
clip_shadow_under_window (self)); /* clip_strictly - not just as an optimization */
if (clip && clip != priv->shadow_clip)
cairo_region_destroy (clip);
}
CLUTTER_ACTOR_CLASS (meta_window_actor_parent_class)->paint (actor);
}
static gboolean
meta_window_actor_get_paint_volume (ClutterActor *actor,
ClutterPaintVolume *volume)
{
MetaWindowActor *self = META_WINDOW_ACTOR (actor);
MetaWindowActorPrivate *priv = self->priv;
cairo_rectangle_int_t unobscured_bounds, bounds;
gboolean appears_focused = meta_window_appears_focused (priv->window);
ClutterVertex origin;
/* The paint volume is computed before paint functions are called
* so our bounds might not be updated yet. Force an update. */
meta_window_actor_handle_updates (self);
meta_window_actor_get_shape_bounds (self, &bounds);
if (priv->surface)
{
if (meta_surface_actor_get_unobscured_bounds (priv->surface, &unobscured_bounds))
gdk_rectangle_intersect (&bounds, &unobscured_bounds, &bounds);
}
if (appears_focused ? priv->focused_shadow : priv->unfocused_shadow)
{
cairo_rectangle_int_t shadow_bounds;
/* We could compute an full clip region as we do for the window
* texture, but the shadow is relatively cheap to draw, and
* a little more complex to clip, so we just catch the case where
* the shadow is completely obscured and doesn't need to be drawn
* at all.
*/
meta_window_actor_get_shadow_bounds (self, appears_focused, &shadow_bounds);
gdk_rectangle_union (&bounds, &shadow_bounds, &bounds);
}
origin.x = bounds.x;
origin.y = bounds.y;
origin.z = 0.0f;
clutter_paint_volume_set_origin (volume, &origin);
clutter_paint_volume_set_width (volume, bounds.width);
clutter_paint_volume_set_height (volume, bounds.height);
return TRUE;
}
static gboolean
meta_window_actor_has_shadow (MetaWindowActor *self)
{
MetaWindowActorPrivate *priv = self->priv;
MetaWindowType window_type = meta_window_get_window_type (priv->window);
if (priv->no_shadow)
return FALSE;
/* Leaving out shadows for maximized and fullscreen windows is an effeciency
* win and also prevents the unsightly effect of the shadow of maximized
* window appearing on an adjacent window */
if ((meta_window_get_maximized (priv->window) == (META_MAXIMIZE_HORIZONTAL | META_MAXIMIZE_VERTICAL)) ||
meta_window_is_fullscreen (priv->window))
return FALSE;
/*
* If we have two snap-tiled windows, we don't want the shadow to obstruct
* the other window.
*/
if (meta_window_get_tile_match (priv->window))
return FALSE;
/*
* Always put a shadow around windows with a frame - This should override
* the restriction about not putting a shadow around ARGB windows.
*/
if (meta_window_get_frame (priv->window))
return TRUE;
/*
* Do not add shadows to non-opaque windows; eventually we should generate
* a shadow from the input shape for such windows.
*/
if (is_non_opaque (self))
return FALSE;
/*
* Add shadows to override redirect windows (e.g., Gtk menus).
*/
if (priv->window->override_redirect)
return TRUE;
/*
* Don't put shadow around DND icon windows
*/
if (window_type == META_WINDOW_DND ||
window_type == META_WINDOW_DESKTOP)
return FALSE;
if (window_type == META_WINDOW_MENU
#if 0
|| window_type == META_WINDOW_DROPDOWN_MENU
#endif
)
return TRUE;
#if 0
if (window_type == META_WINDOW_TOOLTIP)
return TRUE;
#endif
return FALSE;
}
/**
* meta_window_actor_get_meta_window:
* @self: a #MetaWindowActor
*
* Gets the #MetaWindow object that the the #MetaWindowActor is displaying
*
* Return value: (transfer none): the displayed #MetaWindow
*/
MetaWindow *
meta_window_actor_get_meta_window (MetaWindowActor *self)
{
return self->priv->window;
}
/**
* meta_window_actor_get_texture:
* @self: a #MetaWindowActor
*
* Gets the ClutterActor that is used to display the contents of the window,
* or NULL if no texture is shown yet, because the window is not mapped.
*
* Return value: (transfer none): the #ClutterActor for the contents
*/
ClutterActor *
meta_window_actor_get_texture (MetaWindowActor *self)
{
if (self->priv->surface)
return CLUTTER_ACTOR (meta_surface_actor_get_texture (self->priv->surface));
else
return NULL;
}
/**
* meta_window_actor_get_surface:
* @self: a #MetaWindowActor
*
* Gets the MetaSurfaceActor that draws the content of this window,
* or NULL if there is no surface yet associated with this window.
*
* Return value: (transfer none): the #MetaSurfaceActor for the contents
*/
MetaSurfaceActor *
meta_window_actor_get_surface (MetaWindowActor *self)
{
return self->priv->surface;
}
/**
* meta_window_actor_is_destroyed:
* @self: a #MetaWindowActor
*
* Gets whether the X window that the actor was displaying has been destroyed
*
* Return value: %TRUE when the window is destroyed, otherwise %FALSE
*/
gboolean
meta_window_actor_is_destroyed (MetaWindowActor *self)
{
return self->priv->disposed;
}
static gboolean
send_frame_messages_timeout (gpointer data)
{
MetaWindowActor *self = (MetaWindowActor *) data;
MetaWindowActorPrivate *priv = self->priv;
FrameData *frame = g_slice_new0 (FrameData);
frame->sync_request_serial = priv->window->sync_request_serial;
do_send_frame_drawn (self, frame);
do_send_frame_timings (self, frame, 0, 0);
priv->needs_frame_drawn = FALSE;
priv->send_frame_messages_timer = 0;
frame_data_free (frame);
return FALSE;
}
static void
queue_send_frame_messages_timeout (MetaWindowActor *self)
{
MetaWindowActorPrivate *priv = self->priv;
MetaScreen *screen = priv->screen;
MetaDisplay *display = meta_screen_get_display (screen);
gint64 current_time = meta_compositor_monotonic_time_to_server_time (display, g_get_monotonic_time ());
MetaMonitorManager *monitor_manager = meta_monitor_manager_get ();
MetaWindow *window = priv->window;
MetaOutput *outputs;
guint n_outputs, i;
float refresh_rate = 60.0f;
gint interval, offset;
outputs = meta_monitor_manager_get_outputs (monitor_manager, &n_outputs);
for (i = 0; i < n_outputs; i++)
{
if (outputs[i].output_id == window->monitor->output_id && outputs[i].crtc)
{
refresh_rate = outputs[i].crtc->current_mode->refresh_rate;
break;
}
}
interval = (int)(1000000 / refresh_rate) * 6;
offset = MAX (0, priv->frame_drawn_time + interval - current_time) / 1000;
/* The clutter master clock source has already been added with META_PRIORITY_REDRAW,
* so the timer will run *after* the clutter frame handling, if a frame is ready
* to be drawn when the timer expires.
*/
priv->send_frame_messages_timer = g_timeout_add_full (META_PRIORITY_REDRAW, offset, send_frame_messages_timeout, self, NULL);
}
void
meta_window_actor_queue_frame_drawn (MetaWindowActor *self,
gboolean no_delay_frame)
{
MetaWindowActorPrivate *priv = self->priv;
FrameData *frame = g_slice_new0 (FrameData);
priv->needs_frame_drawn = TRUE;
frame->sync_request_serial = priv->window->sync_request_serial;
priv->frames = g_list_prepend (priv->frames, frame);
if (no_delay_frame)
{
ClutterActor *stage = clutter_actor_get_stage (CLUTTER_ACTOR (self));
clutter_stage_skip_sync_delay (CLUTTER_STAGE (stage));
}
if (!priv->repaint_scheduled)
{
gboolean is_obscured;
if (priv->surface)
is_obscured = meta_surface_actor_is_obscured (priv->surface);
else
is_obscured = FALSE;
/* A frame was marked by the client without actually doing any
* damage or any unobscured, or while we had the window frozen
* (e.g. during an interactive resize.) We need to make sure that the
* pre_paint/post_paint functions get called, enabling us to
* send a _NET_WM_FRAME_DRAWN. We do a 1-pixel redraw to get
* consistent timing with non-empty frames. If the window
* is completely obscured we fire off the send_frame_messages timeout.
*/
if (is_obscured)
{
queue_send_frame_messages_timeout (self);
}
else
{
if (priv->surface)
{
const cairo_rectangle_int_t clip = { 0, 0, 1, 1 };
clutter_actor_queue_redraw_with_clip (CLUTTER_ACTOR (priv->surface), &clip);
priv->repaint_scheduled = TRUE;
}
}
}
}
gboolean
meta_window_actor_effect_in_progress (MetaWindowActor *self)
{
return (self->priv->minimize_in_progress ||
self->priv->maximize_in_progress ||
self->priv->unmaximize_in_progress ||
self->priv->map_in_progress ||
self->priv->destroy_in_progress);
}
static gboolean
is_freeze_thaw_effect (gulong event)
{
switch (event)
{
case META_PLUGIN_DESTROY:
case META_PLUGIN_MAXIMIZE:
case META_PLUGIN_UNMAXIMIZE:
return TRUE;
break;
default:
return FALSE;
}
}
static gboolean
start_simple_effect (MetaWindowActor *self,
gulong event)
{
MetaWindowActorPrivate *priv = self->priv;
MetaCompScreen *info = meta_screen_get_compositor_data (priv->screen);
gint *counter = NULL;
gboolean use_freeze_thaw = FALSE;
if (!info->plugin_mgr)
return FALSE;
switch (event)
{
case META_PLUGIN_MINIMIZE:
counter = &priv->minimize_in_progress;
break;
case META_PLUGIN_MAP:
counter = &priv->map_in_progress;
break;
case META_PLUGIN_DESTROY:
counter = &priv->destroy_in_progress;
break;
case META_PLUGIN_UNMAXIMIZE:
case META_PLUGIN_MAXIMIZE:
case META_PLUGIN_SWITCH_WORKSPACE:
g_assert_not_reached ();
break;
}
g_assert (counter);
use_freeze_thaw = is_freeze_thaw_effect (event);
if (use_freeze_thaw)
meta_window_actor_freeze (self);
(*counter)++;
if (!meta_plugin_manager_event_simple (info->plugin_mgr,
self,
event))
{
(*counter)--;
if (use_freeze_thaw)
meta_window_actor_thaw (self);
return FALSE;
}
return TRUE;
}
static void
meta_window_actor_after_effects (MetaWindowActor *self)
{
MetaWindowActorPrivate *priv = self->priv;
if (priv->needs_destroy)
{
clutter_actor_destroy (CLUTTER_ACTOR (self));
return;
}
meta_window_actor_sync_visibility (self);
meta_window_actor_sync_actor_geometry (self, FALSE);
}
void
meta_window_actor_effect_completed (MetaWindowActor *self,
gulong event)
{
MetaWindowActorPrivate *priv = self->priv;
/* NB: Keep in mind that when effects get completed it possible
* that the corresponding MetaWindow may have be been destroyed.
* In this case priv->window will == NULL */
switch (event)
{
case META_PLUGIN_MINIMIZE:
{
priv->minimize_in_progress--;
if (priv->minimize_in_progress < 0)
{
g_warning ("Error in minimize accounting.");
priv->minimize_in_progress = 0;
}
}
break;
case META_PLUGIN_MAP:
/*
* Make sure that the actor is at the correct place in case
* the plugin fscked.
*/
priv->map_in_progress--;
if (priv->map_in_progress < 0)
{
g_warning ("Error in map accounting.");
priv->map_in_progress = 0;
}
break;
case META_PLUGIN_DESTROY:
priv->destroy_in_progress--;
if (priv->destroy_in_progress < 0)
{
g_warning ("Error in destroy accounting.");
priv->destroy_in_progress = 0;
}
break;
case META_PLUGIN_UNMAXIMIZE:
priv->unmaximize_in_progress--;
if (priv->unmaximize_in_progress < 0)
{
g_warning ("Error in unmaximize accounting.");
priv->unmaximize_in_progress = 0;
}
break;
case META_PLUGIN_MAXIMIZE:
priv->maximize_in_progress--;
if (priv->maximize_in_progress < 0)
{
g_warning ("Error in maximize accounting.");
priv->maximize_in_progress = 0;
}
break;
case META_PLUGIN_SWITCH_WORKSPACE:
g_assert_not_reached ();
break;
}
if (is_freeze_thaw_effect (event))
meta_window_actor_thaw (self);
if (!meta_window_actor_effect_in_progress (self))
meta_window_actor_after_effects (self);
}
gboolean
meta_window_actor_should_unredirect (MetaWindowActor *self)
{
MetaWindowActorPrivate *priv = self->priv;
if (priv->surface)
return meta_surface_actor_should_unredirect (priv->surface);
else
return FALSE;
}
void
meta_window_actor_set_unredirected (MetaWindowActor *self,
gboolean unredirected)
{
MetaWindowActorPrivate *priv = self->priv;
g_assert(priv->surface); /* because otherwise should_unredirect() is FALSE */
meta_surface_actor_set_unredirected (priv->surface, unredirected);
}
void
meta_window_actor_destroy (MetaWindowActor *self)
{
MetaWindow *window;
MetaCompScreen *info;
MetaWindowActorPrivate *priv;
MetaWindowType window_type;
priv = self->priv;
window = priv->window;
window_type = meta_window_get_window_type (window);
meta_window_set_compositor_private (window, NULL);
if (priv->send_frame_messages_timer != 0)
{
g_source_remove (priv->send_frame_messages_timer);
priv->send_frame_messages_timer = 0;
}
/*
* We remove the window from internal lookup hashes and thus any other
* unmap events etc fail
*/
info = meta_screen_get_compositor_data (priv->screen);
info->windows = g_list_remove (info->windows, (gconstpointer) self);
if (window_type == META_WINDOW_DROPDOWN_MENU ||
window_type == META_WINDOW_POPUP_MENU ||
window_type == META_WINDOW_TOOLTIP ||
window_type == META_WINDOW_NOTIFICATION ||
window_type == META_WINDOW_COMBO ||
window_type == META_WINDOW_DND ||
window_type == META_WINDOW_OVERRIDE_OTHER)
{
/*
* No effects, just kill it.
*/
clutter_actor_destroy (CLUTTER_ACTOR (self));
return;
}
priv->needs_destroy = TRUE;
if (!meta_window_actor_effect_in_progress (self))
clutter_actor_destroy (CLUTTER_ACTOR (self));
}
void
meta_window_actor_sync_actor_geometry (MetaWindowActor *self,
gboolean did_placement)
{
MetaWindowActorPrivate *priv = self->priv;
MetaRectangle window_rect;
meta_window_get_input_rect (priv->window, &window_rect);
/* When running as a Wayland compositor we catch size changes when new
* buffers are attached */
if (META_IS_SURFACE_ACTOR_X11 (priv->surface))
meta_surface_actor_x11_set_size (META_SURFACE_ACTOR_X11 (priv->surface),
window_rect.width, window_rect.height);
/* Normally we want freezing a window to also freeze its position; this allows
* windows to atomically move and resize together, either under app control,
* or because the user is resizing from the left/top. But on initial placement
* we need to assign a position, since immediately after the window
* is shown, the map effect will go into effect and prevent further geometry
* updates.
*/
if (is_frozen (self) && !did_placement)
return;
if (meta_window_actor_effect_in_progress (self))
return;
clutter_actor_set_position (CLUTTER_ACTOR (self),
window_rect.x, window_rect.y);
clutter_actor_set_size (CLUTTER_ACTOR (self),
window_rect.width, window_rect.height);
}
void
meta_window_actor_show (MetaWindowActor *self,
MetaCompEffect effect)
{
MetaWindowActorPrivate *priv;
MetaCompScreen *info;
gulong event;
priv = self->priv;
info = meta_screen_get_compositor_data (priv->screen);
g_return_if_fail (!priv->visible);
self->priv->visible = TRUE;
event = 0;
switch (effect)
{
case META_COMP_EFFECT_CREATE:
event = META_PLUGIN_MAP;
break;
case META_COMP_EFFECT_UNMINIMIZE:
/* FIXME: should have META_PLUGIN_UNMINIMIZE */
event = META_PLUGIN_MAP;
break;
case META_COMP_EFFECT_NONE:
break;
case META_COMP_EFFECT_DESTROY:
case META_COMP_EFFECT_MINIMIZE:
g_assert_not_reached();
}
if (info->switch_workspace_in_progress ||
event == 0 ||
!start_simple_effect (self, event))
{
clutter_actor_show (CLUTTER_ACTOR (self));
}
}
void
meta_window_actor_hide (MetaWindowActor *self,
MetaCompEffect effect)
{
MetaWindowActorPrivate *priv;
MetaCompScreen *info;
gulong event;
priv = self->priv;
info = meta_screen_get_compositor_data (priv->screen);
g_return_if_fail (priv->visible);
priv->visible = FALSE;
/* If a plugin is animating a workspace transition, we have to
* hold off on hiding the window, and do it after the workspace
* switch completes
*/
if (info->switch_workspace_in_progress)
return;
event = 0;
switch (effect)
{
case META_COMP_EFFECT_DESTROY:
event = META_PLUGIN_DESTROY;
break;
case META_COMP_EFFECT_MINIMIZE:
event = META_PLUGIN_MINIMIZE;
break;
case META_COMP_EFFECT_NONE:
break;
case META_COMP_EFFECT_UNMINIMIZE:
case META_COMP_EFFECT_CREATE:
g_assert_not_reached();
}
if (event == 0 ||
!start_simple_effect (self, event))
clutter_actor_hide (CLUTTER_ACTOR (self));
}
void
meta_window_actor_maximize (MetaWindowActor *self,
MetaRectangle *old_rect,
MetaRectangle *new_rect)
{
MetaCompScreen *info = meta_screen_get_compositor_data (self->priv->screen);
/* The window has already been resized (in order to compute new_rect),
* which by side effect caused the actor to be resized. Restore it to the
* old size and position */
clutter_actor_set_position (CLUTTER_ACTOR (self), old_rect->x, old_rect->y);
clutter_actor_set_size (CLUTTER_ACTOR (self), old_rect->width, old_rect->height);
self->priv->maximize_in_progress++;
meta_window_actor_freeze (self);
if (!info->plugin_mgr ||
!meta_plugin_manager_event_maximize (info->plugin_mgr,
self,
META_PLUGIN_MAXIMIZE,
new_rect->x, new_rect->y,
new_rect->width, new_rect->height))
{
self->priv->maximize_in_progress--;
meta_window_actor_thaw (self);
}
}
void
meta_window_actor_unmaximize (MetaWindowActor *self,
MetaRectangle *old_rect,
MetaRectangle *new_rect)
{
MetaCompScreen *info = meta_screen_get_compositor_data (self->priv->screen);
/* The window has already been resized (in order to compute new_rect),
* which by side effect caused the actor to be resized. Restore it to the
* old size and position */
clutter_actor_set_position (CLUTTER_ACTOR (self), old_rect->x, old_rect->y);
clutter_actor_set_size (CLUTTER_ACTOR (self), old_rect->width, old_rect->height);
self->priv->unmaximize_in_progress++;
meta_window_actor_freeze (self);
if (!info->plugin_mgr ||
!meta_plugin_manager_event_maximize (info->plugin_mgr,
self,
META_PLUGIN_UNMAXIMIZE,
new_rect->x, new_rect->y,
new_rect->width, new_rect->height))
{
self->priv->unmaximize_in_progress--;
meta_window_actor_thaw (self);
}
}
MetaWindowActor *
meta_window_actor_new (MetaWindow *window)
{
MetaScreen *screen = meta_window_get_screen (window);
MetaCompScreen *info = meta_screen_get_compositor_data (screen);
MetaWindowActor *self;
MetaWindowActorPrivate *priv;
ClutterActor *window_group;
self = g_object_new (META_TYPE_WINDOW_ACTOR,
"meta-window", window,
NULL);
priv = self->priv;
meta_window_actor_set_updates_frozen (self, meta_window_updates_are_frozen (priv->window));
/* If a window doesn't start off with updates frozen, we should
* we should send a _NET_WM_FRAME_DRAWN immediately after the first drawn.
*/
if (priv->window->extended_sync_request_counter && !priv->updates_frozen)
meta_window_actor_queue_frame_drawn (self, FALSE);
meta_window_actor_sync_actor_geometry (self, priv->window->placed);
/* Hang our compositor window state off the MetaWindow for fast retrieval */
meta_window_set_compositor_private (window, G_OBJECT (self));
if (window->layer == META_LAYER_OVERRIDE_REDIRECT)
window_group = info->top_window_group;
else
window_group = info->window_group;
clutter_actor_add_child (window_group, CLUTTER_ACTOR (self));
clutter_actor_hide (CLUTTER_ACTOR (self));
/* Initial position in the stack is arbitrary; stacking will be synced
* before we first paint.
*/
info->windows = g_list_append (info->windows, self);
return self;
}
#if 0
/* Print out a region; useful for debugging */
static void
print_region (cairo_region_t *region)
{
int n_rects;
int i;
n_rects = cairo_region_num_rectangles (region);
g_print ("[");
for (i = 0; i < n_rects; i++)
{
cairo_rectangle_int_t rect;
cairo_region_get_rectangle (region, i, &rect);
g_print ("+%d+%dx%dx%d ",
rect.x, rect.y, rect.width, rect.height);
}
g_print ("]\n");
}
#endif
#if 0
/* Dump a region to a PNG file; useful for debugging */
static void
see_region (cairo_region_t *region,
int width,
int height,
char *filename)
{
cairo_surface_t *surface = cairo_image_surface_create (CAIRO_FORMAT_A8, width, height);
cairo_t *cr = cairo_create (surface);
gdk_cairo_region (cr, region);
cairo_fill (cr);
cairo_surface_write_to_png (surface, filename);
cairo_destroy (cr);
cairo_surface_destroy (surface);
}
#endif
/**
* meta_window_actor_set_clip_region_beneath:
* @self: a #MetaWindowActor
* @clip_region: the region of the screen that isn't completely
* obscured beneath the main window texture.
*
* Provides a hint as to what areas need to be drawn *beneath*
* the main window texture. This is the relevant clip region
* when drawing the shadow, properly accounting for areas of the
* shadow hid by the window itself. This will be set before painting
* then unset afterwards.
*/
static void
meta_window_actor_set_clip_region_beneath (MetaWindowActor *self,
cairo_region_t *beneath_region)
{
MetaWindowActorPrivate *priv = self->priv;
gboolean appears_focused = meta_window_appears_focused (priv->window);
if (appears_focused ? priv->focused_shadow : priv->unfocused_shadow)
{
g_clear_pointer (&priv->shadow_clip, cairo_region_destroy);
if (beneath_region)
{
priv->shadow_clip = cairo_region_copy (beneath_region);
if (clip_shadow_under_window (self))
{
cairo_region_t *frame_bounds = meta_window_get_frame_bounds (priv->window);
cairo_region_subtract (priv->shadow_clip, frame_bounds);
}
}
else
priv->shadow_clip = NULL;
}
}
static void
meta_window_actor_cull_out (MetaCullable *cullable,
cairo_region_t *unobscured_region,
cairo_region_t *clip_region)
{
MetaWindowActor *self = META_WINDOW_ACTOR (cullable);
meta_cullable_cull_out_children (cullable, unobscured_region, clip_region);
meta_window_actor_set_clip_region_beneath (self, clip_region);
}
static void
meta_window_actor_reset_culling (MetaCullable *cullable)
{
MetaWindowActor *self = META_WINDOW_ACTOR (cullable);
MetaWindowActorPrivate *priv = self->priv;
g_clear_pointer (&priv->shadow_clip, cairo_region_destroy);
meta_cullable_reset_culling_children (cullable);
}
static void
cullable_iface_init (MetaCullableInterface *iface)
{
iface->cull_out = meta_window_actor_cull_out;
iface->reset_culling = meta_window_actor_reset_culling;
}
static void
check_needs_shadow (MetaWindowActor *self)
{
MetaWindowActorPrivate *priv = self->priv;
MetaShadow *old_shadow = NULL;
MetaShadow **shadow_location;
gboolean recompute_shadow;
gboolean should_have_shadow;
gboolean appears_focused;
/* Calling meta_window_actor_has_shadow() here at every pre-paint is cheap
* and avoids the need to explicitly handle window type changes, which
* we would do if tried to keep track of when we might be adding or removing
* a shadow more explicitly. We only keep track of changes to the *shape* of
* the shadow with priv->recompute_shadow.
*/
should_have_shadow = meta_window_actor_has_shadow (self);
appears_focused = meta_window_appears_focused (priv->window);
if (appears_focused)
{
recompute_shadow = priv->recompute_focused_shadow;
priv->recompute_focused_shadow = FALSE;
shadow_location = &priv->focused_shadow;
}
else
{
recompute_shadow = priv->recompute_unfocused_shadow;
priv->recompute_unfocused_shadow = FALSE;
shadow_location = &priv->unfocused_shadow;
}
if (!should_have_shadow || recompute_shadow)
{
if (*shadow_location != NULL)
{
old_shadow = *shadow_location;
*shadow_location = NULL;
}
}
if (*shadow_location == NULL && should_have_shadow)
{
if (priv->shadow_shape == NULL)
priv->shadow_shape = meta_window_shape_new (priv->shape_region);
MetaShadowFactory *factory = meta_shadow_factory_get_default ();
const char *shadow_class = meta_window_actor_get_shadow_class (self);
cairo_rectangle_int_t shape_bounds;
meta_window_actor_get_shape_bounds (self, &shape_bounds);
*shadow_location = meta_shadow_factory_get_shadow (factory,
priv->shadow_shape,
shape_bounds.width, shape_bounds.height,
shadow_class, appears_focused);
}
if (old_shadow != NULL)
meta_shadow_unref (old_shadow);
}
void
meta_window_actor_process_x11_damage (MetaWindowActor *self,
XDamageNotifyEvent *event)
{
MetaWindowActorPrivate *priv = self->priv;
if (priv->surface)
meta_surface_actor_process_damage (priv->surface,
event->area.x,
event->area.y,
event->area.width,
event->area.height);
}
void
meta_window_actor_sync_visibility (MetaWindowActor *self)
{
MetaWindowActorPrivate *priv = self->priv;
if (CLUTTER_ACTOR_IS_VISIBLE (self) != priv->visible)
{
if (priv->visible)
clutter_actor_show (CLUTTER_ACTOR (self));
else
clutter_actor_hide (CLUTTER_ACTOR (self));
}
}
static cairo_region_t *
scan_visible_region (guchar *mask_data,
int stride,
cairo_region_t *scan_area)
{
int i, n_rects = cairo_region_num_rectangles (scan_area);
MetaRegionBuilder builder;
meta_region_builder_init (&builder);
for (i = 0; i < n_rects; i++)
{
int x, y;
cairo_rectangle_int_t rect;
cairo_region_get_rectangle (scan_area, i, &rect);
for (y = rect.y; y < (rect.y + rect.height); y++)
{
for (x = rect.x; x < (rect.x + rect.width); x++)
{
int x2 = x;
while (mask_data[y * stride + x2] == 255 && x2 < (rect.x + rect.width))
x2++;
if (x2 > x)
{
meta_region_builder_add_rectangle (&builder, x, y, x2 - x, 1);
x = x2;
}
}
}
}
return meta_region_builder_finish (&builder);
}
static void
build_and_scan_frame_mask (MetaWindowActor *self,
cairo_rectangle_int_t *client_area,
cairo_region_t *shape_region)
{
MetaWindowActorPrivate *priv = self->priv;
guchar *mask_data;
guint tex_width, tex_height;
MetaShapedTexture *stex;
CoglTexture *paint_tex, *mask_texture;
int stride;
cairo_t *cr;
cairo_surface_t *surface;
stex = meta_surface_actor_get_texture (priv->surface);
g_return_if_fail (stex);
meta_shaped_texture_set_mask_texture (stex, NULL);
paint_tex = meta_shaped_texture_get_texture (stex);
if (paint_tex == NULL)
return;
tex_width = cogl_texture_get_width (paint_tex);
tex_height = cogl_texture_get_height (paint_tex);
stride = cairo_format_stride_for_width (CAIRO_FORMAT_A8, tex_width);
/* Create data for an empty image */
mask_data = g_malloc0 (stride * tex_height);
surface = cairo_image_surface_create_for_data (mask_data,
CAIRO_FORMAT_A8,
tex_width,
tex_height,
stride);
cr = cairo_create (surface);
gdk_cairo_region (cr, shape_region);
cairo_fill (cr);
if (priv->window->frame != NULL)
{
cairo_region_t *frame_paint_region, *scanned_region;
cairo_rectangle_int_t rect = { 0, 0, tex_width, tex_height };
/* Make sure we don't paint the frame over the client window. */
frame_paint_region = cairo_region_create_rectangle (&rect);
cairo_region_subtract_rectangle (frame_paint_region, client_area);
gdk_cairo_region (cr, frame_paint_region);
cairo_clip (cr);
meta_frame_get_mask (priv->window->frame, cr);
cairo_surface_flush (surface);
scanned_region = scan_visible_region (mask_data, stride, frame_paint_region);
cairo_region_union (shape_region, scanned_region);
cairo_region_destroy (scanned_region);
cairo_region_destroy (frame_paint_region);
}
cairo_destroy (cr);
cairo_surface_destroy (surface);
if (meta_texture_rectangle_check (paint_tex))
{
ClutterBackend *backend = clutter_get_default_backend ();
CoglContext *context = clutter_backend_get_cogl_context (backend);
mask_texture = COGL_TEXTURE (cogl_texture_rectangle_new_with_size (context, tex_width, tex_height));
cogl_texture_set_components (mask_texture, COGL_TEXTURE_COMPONENTS_A);
cogl_texture_set_region (mask_texture,
0, 0, /* src_x/y */
0, 0, /* dst_x/y */
tex_width, tex_height, /* dst_width/height */
tex_width, tex_height, /* width/height */
COGL_PIXEL_FORMAT_A_8,
stride, mask_data);
}
else
{
/* Note: we don't allow slicing for this texture because we
* need to use it with multi-texturing which doesn't support
* sliced textures */
mask_texture = cogl_texture_new_from_data (tex_width, tex_height,
COGL_TEXTURE_NO_SLICING,
COGL_PIXEL_FORMAT_A_8,
COGL_PIXEL_FORMAT_ANY,
stride,
mask_data);
}
meta_shaped_texture_set_mask_texture (stex, mask_texture);
cogl_object_unref (mask_texture);
g_free (mask_data);
}
void
meta_window_actor_update_shape_region (MetaWindowActor *self)
{
MetaWindowActorPrivate *priv = self->priv;
cairo_region_t *region = NULL;
cairo_rectangle_int_t client_area;
meta_window_get_client_area_rect (priv->window, &client_area);
if (priv->window->frame != NULL && priv->window->shape_region != NULL)
{
region = cairo_region_copy (priv->window->shape_region);
cairo_region_translate (region, client_area.x, client_area.y);
}
else if (priv->window->shape_region != NULL)
{
region = cairo_region_reference (priv->window->shape_region);
}
else
{
/* If we don't have a shape on the server, that means that
* we have an implicit shape of one rectangle covering the
* entire window. */
region = cairo_region_create_rectangle (&client_area);
}
if ((priv->window->shape_region != NULL) || (priv->window->frame != NULL))
build_and_scan_frame_mask (self, &client_area, region);
g_clear_pointer (&priv->shape_region, cairo_region_destroy);
priv->shape_region = region;
g_clear_pointer (&priv->shadow_shape, meta_window_shape_unref);
meta_window_actor_invalidate_shadow (self);
}
void
meta_window_actor_update_input_region (MetaWindowActor *self)
{
MetaWindowActorPrivate *priv = self->priv;
cairo_region_t *region = NULL;
cairo_rectangle_int_t client_area;
meta_window_get_client_area_rect (priv->window, &client_area);
if (priv->window->frame != NULL)
{
region = meta_frame_get_frame_bounds (priv->window->frame);
/* input_region is in client window coordinates, so translate the
* input region into that coordinate system and back */
cairo_region_translate (region, -client_area.x, -client_area.y);
cairo_region_union_rectangle (region, &client_area);
cairo_region_translate (region, client_area.x, client_area.y);
}
else if (priv->window->shape_region != NULL ||
priv->window->input_region != NULL)
{
if (priv->window->shape_region != NULL)
{
region = cairo_region_copy (priv->window->shape_region);
if (priv->window->input_region != NULL)
cairo_region_intersect (region, priv->window->input_region);
}
else
region = cairo_region_reference (priv->window->input_region);
}
else
{
/* If we don't have a shape on the server, that means that
* we have an implicit shape of one rectangle covering the
* entire window. */
region = cairo_region_create_rectangle (&client_area);
}
meta_surface_actor_set_input_region (priv->surface, region);
cairo_region_destroy (region);
}
void
meta_window_actor_update_opaque_region (MetaWindowActor *self)
{
MetaWindowActorPrivate *priv = self->priv;
cairo_region_t *opaque_region;
gboolean argb32 = is_argb32 (self);
if (argb32 && priv->window->opaque_region != NULL)
{
cairo_rectangle_int_t client_area;
meta_window_get_client_area_rect (priv->window, &client_area);
/* The opaque region is defined to be a part of the
* window which ARGB32 will always paint with opaque
* pixels. For these regions, we want to avoid painting
* windows and shadows beneath them.
*
* If the client gives bad coordinates where it does not
* fully paint, the behavior is defined by the specification
* to be undefined, and considered a client bug. In mutter's
* case, graphical glitches will occur.
*/
opaque_region = cairo_region_copy (priv->window->opaque_region);
cairo_region_translate (opaque_region, client_area.x, client_area.y);
cairo_region_intersect (opaque_region, priv->shape_region);
}
else if (argb32)
opaque_region = NULL;
else
opaque_region = cairo_region_reference (priv->shape_region);
meta_surface_actor_set_opaque_region (priv->surface, opaque_region);
cairo_region_destroy (opaque_region);
}
static void
check_needs_reshape (MetaWindowActor *self)
{
MetaWindowActorPrivate *priv = self->priv;
if (!priv->needs_reshape)
return;
meta_window_actor_update_shape_region (self);
if (priv->window->client_type == META_WINDOW_CLIENT_TYPE_X11)
{
meta_window_actor_update_input_region (self);
meta_window_actor_update_opaque_region (self);
}
priv->needs_reshape = FALSE;
}
void
meta_window_actor_update_shape (MetaWindowActor *self)
{
MetaWindowActorPrivate *priv = self->priv;
priv->needs_reshape = TRUE;
if (is_frozen (self))
return;
clutter_actor_queue_redraw (CLUTTER_ACTOR (priv->surface));
}
static void
meta_window_actor_handle_updates (MetaWindowActor *self)
{
MetaWindowActorPrivate *priv = self->priv;
if (is_frozen (self))
{
/* The window is frozen due to a pending animation: we'll wait until
* the animation finishes to reshape and repair the window */
return;
}
if (meta_surface_actor_is_unredirected (priv->surface))
return;
meta_surface_actor_pre_paint (priv->surface);
if (!meta_surface_actor_is_visible (priv->surface))
return;
check_needs_reshape (self);
check_needs_shadow (self);
}
void
meta_window_actor_pre_paint (MetaWindowActor *self)
{
MetaWindowActorPrivate *priv = self->priv;
GList *l;
meta_window_actor_handle_updates (self);
for (l = priv->frames; l != NULL; l = l->next)
{
FrameData *frame = l->data;
if (frame->frame_counter == 0)
{
CoglOnscreen *onscreen = COGL_ONSCREEN (cogl_get_draw_framebuffer());
frame->frame_counter = cogl_onscreen_get_frame_counter (onscreen);
}
}
}
static void
do_send_frame_drawn (MetaWindowActor *self, FrameData *frame)
{
MetaWindowActorPrivate *priv = self->priv;
MetaScreen *screen = priv->screen;
MetaDisplay *display = meta_screen_get_display (screen);
Display *xdisplay = meta_display_get_xdisplay (display);
XClientMessageEvent ev = { 0, };
frame->frame_drawn_time = meta_compositor_monotonic_time_to_server_time (display,
g_get_monotonic_time ());
priv->frame_drawn_time = frame->frame_drawn_time;
ev.type = ClientMessage;
ev.window = meta_window_get_xwindow (priv->window);
ev.message_type = display->atom__NET_WM_FRAME_DRAWN;
ev.format = 32;
ev.data.l[0] = frame->sync_request_serial & G_GUINT64_CONSTANT(0xffffffff);
ev.data.l[1] = frame->sync_request_serial >> 32;
ev.data.l[2] = frame->frame_drawn_time & G_GUINT64_CONSTANT(0xffffffff);
ev.data.l[3] = frame->frame_drawn_time >> 32;
meta_error_trap_push (display);
XSendEvent (xdisplay, ev.window, False, 0, (XEvent*) &ev);
XFlush (xdisplay);
meta_error_trap_pop (display);
}
void
meta_window_actor_post_paint (MetaWindowActor *self)
{
MetaWindowActorPrivate *priv = self->priv;
priv->repaint_scheduled = FALSE;
/* This window had damage, but wasn't actually redrawn because
* it is obscured. So we should wait until timer expiration
* before sending _NET_WM_FRAME_* messages.
*/
if (priv->send_frame_messages_timer != 0)
return;
if (priv->needs_frame_drawn)
{
do_send_frame_drawn (self, priv->frames->data);
priv->needs_frame_drawn = FALSE;
}
}
static void
do_send_frame_timings (MetaWindowActor *self,
FrameData *frame,
gint refresh_interval,
gint64 presentation_time)
{
MetaWindowActorPrivate *priv = self->priv;
MetaDisplay *display = meta_screen_get_display (priv->screen);
Display *xdisplay = meta_display_get_xdisplay (display);
XClientMessageEvent ev = { 0, };
ev.type = ClientMessage;
ev.window = meta_window_get_xwindow (priv->window);
ev.message_type = display->atom__NET_WM_FRAME_TIMINGS;
ev.format = 32;
ev.data.l[0] = frame->sync_request_serial & G_GUINT64_CONSTANT(0xffffffff);
ev.data.l[1] = frame->sync_request_serial >> 32;
if (presentation_time != 0)
{
gint64 presentation_time_server = meta_compositor_monotonic_time_to_server_time (display,
presentation_time);
gint64 presentation_time_offset = presentation_time_server - frame->frame_drawn_time;
if (presentation_time_offset == 0)
presentation_time_offset = 1;
if ((gint32)presentation_time_offset == presentation_time_offset)
ev.data.l[2] = presentation_time_offset;
}
ev.data.l[3] = refresh_interval;
ev.data.l[4] = 1000 * META_SYNC_DELAY;
meta_error_trap_push (display);
XSendEvent (xdisplay, ev.window, False, 0, (XEvent*) &ev);
XFlush (xdisplay);
meta_error_trap_pop (display);
}
static void
send_frame_timings (MetaWindowActor *self,
FrameData *frame,
CoglFrameInfo *frame_info,
gint64 presentation_time)
{
float refresh_rate;
int refresh_interval;
refresh_rate = cogl_frame_info_get_refresh_rate (frame_info);
/* 0.0 is a flag for not known, but sanity-check against other odd numbers */
if (refresh_rate >= 1.0)
refresh_interval = (int) (0.5 + 1000000 / refresh_rate);
else
refresh_interval = 0;
do_send_frame_timings (self, frame, refresh_interval, presentation_time);
}
void
meta_window_actor_frame_complete (MetaWindowActor *self,
CoglFrameInfo *frame_info,
gint64 presentation_time)
{
MetaWindowActorPrivate *priv = self->priv;
GList *l;
for (l = priv->frames; l;)
{
GList *l_next = l->next;
FrameData *frame = l->data;
if (frame->frame_counter == cogl_frame_info_get_frame_counter (frame_info))
{
if (frame->frame_drawn_time != 0)
{
priv->frames = g_list_delete_link (priv->frames, l);
send_frame_timings (self, frame, frame_info, presentation_time);
frame_data_free (frame);
}
}
l = l_next;
}
}
void
meta_window_actor_invalidate_shadow (MetaWindowActor *self)
{
MetaWindowActorPrivate *priv = self->priv;
priv->recompute_focused_shadow = TRUE;
priv->recompute_unfocused_shadow = TRUE;
if (is_frozen (self))
return;
clutter_actor_queue_redraw (CLUTTER_ACTOR (self));
}
void
meta_window_actor_update_opacity (MetaWindowActor *self)
{
MetaWindowActorPrivate *priv = self->priv;
MetaWindow *window = priv->window;
if (priv->surface)
clutter_actor_set_opacity (CLUTTER_ACTOR (priv->surface), window->opacity);
}
void
meta_window_actor_set_updates_frozen (MetaWindowActor *self,
gboolean updates_frozen)
{
MetaWindowActorPrivate *priv = self->priv;
updates_frozen = updates_frozen != FALSE;
if (priv->updates_frozen != updates_frozen)
{
priv->updates_frozen = updates_frozen;
if (updates_frozen)
meta_window_actor_freeze (self);
else
meta_window_actor_thaw (self);
}
}
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