mutter/src/compositor/meta-surface-actor-wayland.c
Adel Gadllah 070cd27786 wayland: Only call frame callbacks when a surface gets drawn on screen
The spec says:
"A server should avoid signalling the frame callbacks if the surface is not
visible in any way, e.g. the surface is off-screen, or completely obscured
by other opaque surfaces."

We actually do have the information to do that but we are always calling
the frame callbacks in after_stage_paint. So fix that to only call when
when the surface gets drawn on screen.

https://bugzilla.gnome.org/show_bug.cgi?id=739163
2015-08-09 10:40:40 +02:00

431 lines
14 KiB
C

/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* Copyright (C) 2013 Red Hat
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*
* Written by:
* Jasper St. Pierre <jstpierre@mecheye.net>
*/
#include "config.h"
#include "meta-surface-actor-wayland.h"
#include <math.h>
#include <cogl/cogl-wayland-server.h>
#include "meta-shaped-texture-private.h"
#include "wayland/meta-wayland-buffer.h"
#include "wayland/meta-wayland-private.h"
#include "wayland/meta-window-wayland.h"
#include "compositor/region-utils.h"
struct _MetaSurfaceActorWaylandPrivate
{
MetaWaylandSurface *surface;
struct wl_list frame_callback_list;
};
typedef struct _MetaSurfaceActorWaylandPrivate MetaSurfaceActorWaylandPrivate;
G_DEFINE_TYPE_WITH_PRIVATE (MetaSurfaceActorWayland, meta_surface_actor_wayland, META_TYPE_SURFACE_ACTOR)
static void
meta_surface_actor_wayland_process_damage (MetaSurfaceActor *actor,
int x, int y, int width, int height)
{
}
static void
meta_surface_actor_wayland_pre_paint (MetaSurfaceActor *actor)
{
}
static gboolean
meta_surface_actor_wayland_is_visible (MetaSurfaceActor *actor)
{
/* TODO: ensure that the buffer isn't NULL, implement
* wayland mapping semantics */
return TRUE;
}
static gboolean
meta_surface_actor_wayland_should_unredirect (MetaSurfaceActor *actor)
{
return FALSE;
}
static void
meta_surface_actor_wayland_set_unredirected (MetaSurfaceActor *actor,
gboolean unredirected)
{
/* Do nothing. In the future, we'll use KMS to set this
* up as a hardware overlay or something. */
}
static gboolean
meta_surface_actor_wayland_is_unredirected (MetaSurfaceActor *actor)
{
return FALSE;
}
double
meta_surface_actor_wayland_get_scale (MetaSurfaceActorWayland *actor)
{
MetaSurfaceActorWaylandPrivate *priv = meta_surface_actor_wayland_get_instance_private (actor);
MetaWaylandSurface *surface = priv->surface;
MetaWindow *window;
int output_scale = 1;
if (!surface)
return 1;
window = meta_wayland_surface_get_toplevel_window (surface);
/* XXX: We do not handle x11 clients yet */
if (window && window->client_type != META_WINDOW_CLIENT_TYPE_X11)
output_scale = meta_window_wayland_get_main_monitor_scale (window);
return (double)output_scale / (double)priv->surface->scale;
}
static void
logical_to_actor_position (MetaSurfaceActorWayland *self,
int *x,
int *y)
{
MetaWaylandSurface *surface = meta_surface_actor_wayland_get_surface (self);
MetaWindow *toplevel_window;
int monitor_scale = 1;
toplevel_window = meta_wayland_surface_get_toplevel_window (surface);
if (toplevel_window)
monitor_scale = meta_window_wayland_get_main_monitor_scale (toplevel_window);
*x = *x * monitor_scale;
*y = *y * monitor_scale;
}
/* Convert the current actor state to the corresponding subsurface rectangle
* in logical pixel coordinate space. */
void
meta_surface_actor_wayland_get_subsurface_rect (MetaSurfaceActorWayland *self,
MetaRectangle *rect)
{
MetaWaylandSurface *surface = meta_surface_actor_wayland_get_surface (self);
CoglTexture *texture = surface->buffer->texture;
MetaWindow *toplevel_window;
int monitor_scale;
float x, y;
toplevel_window = meta_wayland_surface_get_toplevel_window (surface);
monitor_scale = meta_window_wayland_get_main_monitor_scale (toplevel_window);
clutter_actor_get_position (CLUTTER_ACTOR (self), &x, &y);
*rect = (MetaRectangle) {
.x = x / monitor_scale,
.y = y / monitor_scale,
.width = cogl_texture_get_width (texture) / surface->scale,
.height = cogl_texture_get_height (texture) / surface->scale,
};
}
void
meta_surface_actor_wayland_sync_subsurface_state (MetaSurfaceActorWayland *self)
{
MetaWaylandSurface *surface = meta_surface_actor_wayland_get_surface (self);
MetaWindow *window;
int x = surface->offset_x + surface->sub.x;
int y = surface->offset_y + surface->sub.y;
window = meta_wayland_surface_get_toplevel_window (surface);
if (window && window->client_type == META_WINDOW_CLIENT_TYPE_X11)
{
/* Bail directly if this is part of a Xwayland window and warn
* if there happen to be offsets anyway since that is not supposed
* to happen. */
g_warn_if_fail (x == 0 && y == 0);
return;
}
logical_to_actor_position (self, &x, &y);
clutter_actor_set_position (CLUTTER_ACTOR (self), x, y);
}
void
meta_surface_actor_wayland_sync_state (MetaSurfaceActorWayland *self)
{
MetaWaylandSurface *surface = meta_surface_actor_wayland_get_surface (self);
MetaShapedTexture *stex =
meta_surface_actor_get_texture (META_SURFACE_ACTOR (self));
double texture_scale;
/* Given the surface's window type and what output the surface actor has the
* largest region, scale the actor with the determined scale. */
texture_scale = meta_surface_actor_wayland_get_scale (self);
/* Actor scale. */
clutter_actor_set_scale (CLUTTER_ACTOR (stex), texture_scale, texture_scale);
/* Input region */
if (surface->input_region)
{
cairo_region_t *scaled_input_region;
int region_scale;
/* The input region from the Wayland surface is in the Wayland surface
* coordinate space, while the surface actor input region is in the
* physical pixel coordinate space. */
region_scale = (int)(surface->scale * texture_scale);
scaled_input_region = meta_region_scale (surface->input_region,
region_scale);
meta_surface_actor_set_input_region (META_SURFACE_ACTOR (self),
scaled_input_region);
cairo_region_destroy (scaled_input_region);
}
else
{
meta_surface_actor_set_input_region (META_SURFACE_ACTOR (self), NULL);
}
/* Opaque region */
if (surface->opaque_region)
{
cairo_region_t *scaled_opaque_region;
/* The opaque region from the Wayland surface is in Wayland surface
* coordinate space, while the surface actor opaque region is in the
* same coordinate space as the unscaled buffer texture. */
scaled_opaque_region = meta_region_scale (surface->opaque_region,
surface->scale);
meta_surface_actor_set_opaque_region (META_SURFACE_ACTOR (self),
scaled_opaque_region);
cairo_region_destroy (scaled_opaque_region);
}
else
{
meta_surface_actor_set_opaque_region (META_SURFACE_ACTOR (self), NULL);
}
meta_surface_actor_wayland_sync_subsurface_state (self);
}
void
meta_surface_actor_wayland_sync_state_recursive (MetaSurfaceActorWayland *self)
{
MetaWaylandSurface *surface = meta_surface_actor_wayland_get_surface (self);
MetaWindow *window = meta_wayland_surface_get_toplevel_window (surface);
GList *iter;
meta_surface_actor_wayland_sync_state (self);
if (window && window->client_type != META_WINDOW_CLIENT_TYPE_X11)
{
for (iter = surface->subsurfaces; iter != NULL; iter = iter->next)
{
MetaWaylandSurface *subsurf = iter->data;
meta_surface_actor_wayland_sync_state_recursive (
META_SURFACE_ACTOR_WAYLAND (subsurf->surface_actor));
}
}
}
gboolean
meta_surface_actor_wayland_is_on_monitor (MetaSurfaceActorWayland *self,
MetaMonitorInfo *monitor)
{
float x, y, width, height;
cairo_rectangle_int_t actor_rect;
cairo_region_t *region;
gboolean is_on_monitor;
clutter_actor_get_transformed_position (CLUTTER_ACTOR (self), &x, &y);
clutter_actor_get_transformed_size (CLUTTER_ACTOR (self), &width, &height);
actor_rect.x = (int)roundf (x);
actor_rect.y = (int)roundf (y);
actor_rect.width = (int)roundf (x + width) - actor_rect.x;
actor_rect.height = (int)roundf (y + height) - actor_rect.y;
/* Calculate the scaled surface actor region. */
region = cairo_region_create_rectangle (&actor_rect);
cairo_region_intersect_rectangle (region,
&((cairo_rectangle_int_t) {
.x = monitor->rect.x,
.y = monitor->rect.y,
.width = monitor->rect.width,
.height = monitor->rect.height,
}));
is_on_monitor = !cairo_region_is_empty (region);
cairo_region_destroy (region);
return is_on_monitor;
}
void
meta_surface_actor_wayland_add_frame_callbacks (MetaSurfaceActorWayland *self,
struct wl_list *frame_callbacks)
{
MetaSurfaceActorWaylandPrivate *priv = meta_surface_actor_wayland_get_instance_private (self);
wl_list_insert_list (&priv->frame_callback_list, frame_callbacks);
}
static MetaWindow *
meta_surface_actor_wayland_get_window (MetaSurfaceActor *actor)
{
MetaSurfaceActorWaylandPrivate *priv = meta_surface_actor_wayland_get_instance_private (META_SURFACE_ACTOR_WAYLAND (actor));
return priv->surface->window;
}
static void
meta_surface_actor_wayland_get_preferred_width (ClutterActor *self,
gfloat for_height,
gfloat *min_width_p,
gfloat *natural_width_p)
{
MetaShapedTexture *stex = meta_surface_actor_get_texture (META_SURFACE_ACTOR (self));
double scale = meta_surface_actor_wayland_get_scale (META_SURFACE_ACTOR_WAYLAND (self));
clutter_actor_get_preferred_width (CLUTTER_ACTOR (stex), for_height, min_width_p, natural_width_p);
if (min_width_p)
*min_width_p *= scale;
if (natural_width_p)
*natural_width_p *= scale;
}
static void
meta_surface_actor_wayland_get_preferred_height (ClutterActor *self,
gfloat for_width,
gfloat *min_height_p,
gfloat *natural_height_p)
{
MetaShapedTexture *stex = meta_surface_actor_get_texture (META_SURFACE_ACTOR (self));
double scale = meta_surface_actor_wayland_get_scale (META_SURFACE_ACTOR_WAYLAND (self));
clutter_actor_get_preferred_height (CLUTTER_ACTOR (stex), for_width, min_height_p, natural_height_p);
if (min_height_p)
*min_height_p *= scale;
if (natural_height_p)
*natural_height_p *= scale;
}
static void
meta_surface_actor_wayland_paint (ClutterActor *actor)
{
MetaSurfaceActorWayland *self = META_SURFACE_ACTOR_WAYLAND (actor);
MetaSurfaceActorWaylandPrivate *priv =
meta_surface_actor_wayland_get_instance_private (self);
if (priv->surface)
{
MetaWaylandCompositor *compositor = priv->surface->compositor;
meta_wayland_surface_update_outputs (priv->surface);
wl_list_insert_list (&compositor->frame_callbacks, &priv->frame_callback_list);
wl_list_init (&priv->frame_callback_list);
}
CLUTTER_ACTOR_CLASS (meta_surface_actor_wayland_parent_class)->paint (actor);
}
static void
meta_surface_actor_wayland_dispose (GObject *object)
{
MetaSurfaceActorWayland *self = META_SURFACE_ACTOR_WAYLAND (object);
meta_surface_actor_wayland_set_texture (self, NULL);
G_OBJECT_CLASS (meta_surface_actor_wayland_parent_class)->dispose (object);
}
static void
meta_surface_actor_wayland_class_init (MetaSurfaceActorWaylandClass *klass)
{
MetaSurfaceActorClass *surface_actor_class = META_SURFACE_ACTOR_CLASS (klass);
ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
GObjectClass *object_class = G_OBJECT_CLASS (klass);
actor_class->get_preferred_width = meta_surface_actor_wayland_get_preferred_width;
actor_class->get_preferred_height = meta_surface_actor_wayland_get_preferred_height;
actor_class->paint = meta_surface_actor_wayland_paint;
surface_actor_class->process_damage = meta_surface_actor_wayland_process_damage;
surface_actor_class->pre_paint = meta_surface_actor_wayland_pre_paint;
surface_actor_class->is_visible = meta_surface_actor_wayland_is_visible;
surface_actor_class->should_unredirect = meta_surface_actor_wayland_should_unredirect;
surface_actor_class->set_unredirected = meta_surface_actor_wayland_set_unredirected;
surface_actor_class->is_unredirected = meta_surface_actor_wayland_is_unredirected;
surface_actor_class->get_window = meta_surface_actor_wayland_get_window;
object_class->dispose = meta_surface_actor_wayland_dispose;
}
static void
meta_surface_actor_wayland_init (MetaSurfaceActorWayland *self)
{
}
MetaSurfaceActor *
meta_surface_actor_wayland_new (MetaWaylandSurface *surface)
{
MetaSurfaceActorWayland *self = g_object_new (META_TYPE_SURFACE_ACTOR_WAYLAND, NULL);
MetaSurfaceActorWaylandPrivate *priv = meta_surface_actor_wayland_get_instance_private (self);
g_assert (meta_is_wayland_compositor ());
wl_list_init (&priv->frame_callback_list);
priv->surface = surface;
return META_SURFACE_ACTOR (self);
}
void
meta_surface_actor_wayland_set_texture (MetaSurfaceActorWayland *self,
CoglTexture *texture)
{
MetaShapedTexture *stex = meta_surface_actor_get_texture (META_SURFACE_ACTOR (self));
meta_shaped_texture_set_texture (stex, texture);
}
MetaWaylandSurface *
meta_surface_actor_wayland_get_surface (MetaSurfaceActorWayland *self)
{
MetaSurfaceActorWaylandPrivate *priv = meta_surface_actor_wayland_get_instance_private (self);
return priv->surface;
}
void
meta_surface_actor_wayland_surface_destroyed (MetaSurfaceActorWayland *self)
{
MetaSurfaceActorWaylandPrivate *priv =
meta_surface_actor_wayland_get_instance_private (self);
priv->surface = NULL;
}