ba7af4f7d3
This adds the required bits to wayland surfaces and ties them up to the compositor parts. It is based on and very similar in nature to buffer transforms. From the specification: > The global interface exposing surface cropping and scaling > capabilities is used to instantiate an interface extension for a > wl_surface object. This extended interface will then allow cropping > and scaling the surface contents, effectively disconnecting the > direct relationship between the buffer and the surface size. https://gitlab.gnome.org/GNOME/mutter/merge_requests/323
368 lines
13 KiB
C
368 lines
13 KiB
C
/*
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* Copyright (C) 2012,2013 Intel Corporation
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* Copyright (C) 2013-2017 Red Hat, Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*
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*/
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#include "config.h"
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#include "wayland/meta-wayland-actor-surface.h"
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#include "backends/meta-backend-private.h"
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#include "backends/meta-logical-monitor.h"
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#include "compositor/meta-surface-actor-wayland.h"
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#include "compositor/region-utils.h"
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#include "wayland/meta-wayland-surface.h"
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#include "wayland/meta-window-wayland.h"
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typedef struct _MetaWaylandActorSurfacePrivate MetaWaylandActorSurfacePrivate;
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struct _MetaWaylandActorSurfacePrivate
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{
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MetaSurfaceActor *actor;
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};
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G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE (MetaWaylandActorSurface,
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meta_wayland_actor_surface,
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META_TYPE_WAYLAND_SURFACE_ROLE)
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static void
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meta_wayland_actor_surface_constructed (GObject *object)
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{
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G_OBJECT_CLASS (meta_wayland_actor_surface_parent_class)->constructed (object);
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meta_wayland_actor_surface_reset_actor (META_WAYLAND_ACTOR_SURFACE (object));
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}
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static void
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meta_wayland_actor_surface_dispose (GObject *object)
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{
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MetaWaylandActorSurfacePrivate *priv =
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meta_wayland_actor_surface_get_instance_private (META_WAYLAND_ACTOR_SURFACE (object));
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MetaWaylandSurface *surface =
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meta_wayland_surface_role_get_surface (META_WAYLAND_SURFACE_ROLE (object));
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if (priv->actor)
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{
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g_signal_handlers_disconnect_by_func (priv->actor,
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meta_wayland_surface_notify_geometry_changed,
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surface);
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clutter_actor_set_reactive (CLUTTER_ACTOR (priv->actor), FALSE);
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g_clear_object (&priv->actor);
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}
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G_OBJECT_CLASS (meta_wayland_actor_surface_parent_class)->dispose (object);
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}
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static void
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meta_wayland_actor_surface_assigned (MetaWaylandSurfaceRole *surface_role)
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{
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MetaWaylandActorSurfacePrivate *priv =
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meta_wayland_actor_surface_get_instance_private (META_WAYLAND_ACTOR_SURFACE (surface_role));
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MetaWaylandSurface *surface =
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meta_wayland_surface_role_get_surface (surface_role);
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GList *l;
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meta_surface_actor_wayland_add_frame_callbacks (META_SURFACE_ACTOR_WAYLAND (priv->actor),
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&surface->pending_frame_callback_list);
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wl_list_init (&surface->pending_frame_callback_list);
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for (l = surface->subsurfaces; l; l = l->next)
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{
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ClutterActor *subsurface_actor =
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CLUTTER_ACTOR (meta_wayland_surface_get_actor (l->data));
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clutter_actor_add_child (CLUTTER_ACTOR (priv->actor), subsurface_actor);
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}
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}
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void
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meta_wayland_actor_surface_queue_frame_callbacks (MetaWaylandActorSurface *actor_surface,
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MetaWaylandPendingState *pending)
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{
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MetaWaylandActorSurfacePrivate *priv =
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meta_wayland_actor_surface_get_instance_private (actor_surface);
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MetaSurfaceActorWayland *surface_actor_wayland =
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META_SURFACE_ACTOR_WAYLAND (priv->actor);
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meta_surface_actor_wayland_add_frame_callbacks (surface_actor_wayland,
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&pending->frame_callback_list);
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wl_list_init (&pending->frame_callback_list);
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}
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static double
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meta_wayland_actor_surface_get_geometry_scale (MetaWaylandActorSurface *actor_surface)
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{
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MetaWaylandSurfaceRole *surface_role =
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META_WAYLAND_SURFACE_ROLE (actor_surface);
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MetaWaylandSurface *surface =
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meta_wayland_surface_role_get_surface (surface_role);
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MetaWindow *toplevel_window;
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toplevel_window = meta_wayland_surface_get_toplevel_window (surface);
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if (meta_is_stage_views_scaled ())
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{
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return 1;
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}
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else
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{
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if (!toplevel_window ||
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toplevel_window->client_type == META_WINDOW_CLIENT_TYPE_X11)
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return 1;
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else
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return meta_window_wayland_get_geometry_scale (toplevel_window);
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}
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}
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double
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meta_wayland_actor_surface_calculate_scale (MetaWaylandActorSurface *actor_surface)
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{
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MetaWaylandSurfaceRole *surface_role =
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META_WAYLAND_SURFACE_ROLE (actor_surface);
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MetaWaylandSurface *surface =
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meta_wayland_surface_role_get_surface (surface_role);
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double geometry_scale;
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geometry_scale =
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meta_wayland_actor_surface_get_geometry_scale (actor_surface);
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return geometry_scale / (double) surface->scale;
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}
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static void
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meta_wayland_actor_surface_real_sync_actor_state (MetaWaylandActorSurface *actor_surface)
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{
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MetaWaylandActorSurfacePrivate *priv =
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meta_wayland_actor_surface_get_instance_private (actor_surface);
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MetaWaylandSurfaceRole *surface_role =
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META_WAYLAND_SURFACE_ROLE (actor_surface);
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MetaWaylandSurface *surface =
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meta_wayland_surface_role_get_surface (surface_role);
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MetaSurfaceActor *surface_actor;
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MetaShapedTexture *stex;
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double actor_scale;
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GList *l;
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cairo_rectangle_int_t surface_rect;
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int geometry_scale;
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surface_actor = priv->actor;
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stex = meta_surface_actor_get_texture (surface_actor);
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actor_scale = meta_wayland_actor_surface_calculate_scale (actor_surface);
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clutter_actor_set_scale (CLUTTER_ACTOR (stex), actor_scale, actor_scale);
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/* Wayland surface coordinate space -> stage coordinate space */
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geometry_scale = meta_wayland_actor_surface_get_geometry_scale (actor_surface);
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surface_rect = (cairo_rectangle_int_t) {
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.width = meta_wayland_surface_get_width (surface) * geometry_scale,
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.height = meta_wayland_surface_get_height (surface) * geometry_scale,
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};
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if (surface->input_region)
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{
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cairo_region_t *scaled_input_region;
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scaled_input_region = meta_region_scale (surface->input_region,
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geometry_scale);
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cairo_region_intersect_rectangle (scaled_input_region, &surface_rect);
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meta_surface_actor_set_input_region (surface_actor, scaled_input_region);
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cairo_region_destroy (scaled_input_region);
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}
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else
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{
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meta_surface_actor_set_input_region (surface_actor, NULL);
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}
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if (surface->opaque_region)
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{
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cairo_region_t *scaled_opaque_region;
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/* Wayland surface coordinate space -> stage coordinate space */
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scaled_opaque_region = meta_region_scale (surface->opaque_region,
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geometry_scale);
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cairo_region_intersect_rectangle (scaled_opaque_region, &surface_rect);
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meta_surface_actor_set_opaque_region (surface_actor,
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scaled_opaque_region);
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cairo_region_destroy (scaled_opaque_region);
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}
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else
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{
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meta_surface_actor_set_opaque_region (surface_actor, NULL);
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}
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meta_surface_actor_set_transform (surface_actor, surface->buffer_transform);
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if (surface->viewport.has_src_rect)
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{
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meta_surface_actor_set_viewport_src_rect (surface_actor,
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&surface->viewport.src_rect);
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}
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else
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{
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meta_surface_actor_reset_viewport_src_rect (surface_actor);
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}
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if (surface->viewport.has_dst_size)
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{
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meta_surface_actor_set_viewport_dst_size (surface_actor,
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surface->viewport.dst_width,
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surface->viewport.dst_height);
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}
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else
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{
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meta_surface_actor_reset_viewport_dst_size (surface_actor);
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}
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for (l = surface->subsurfaces; l; l = l->next)
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{
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MetaWaylandSurface *subsurface_surface = l->data;
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MetaWaylandActorSurface *subsurface_actor_surface =
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META_WAYLAND_ACTOR_SURFACE (subsurface_surface->role);
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meta_wayland_actor_surface_sync_actor_state (subsurface_actor_surface);
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}
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}
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void
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meta_wayland_actor_surface_sync_actor_state (MetaWaylandActorSurface *actor_surface)
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{
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MetaWaylandActorSurfaceClass *actor_surface_class =
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META_WAYLAND_ACTOR_SURFACE_GET_CLASS (actor_surface);
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actor_surface_class->sync_actor_state (actor_surface);
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}
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static void
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meta_wayland_actor_surface_commit (MetaWaylandSurfaceRole *surface_role,
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MetaWaylandPendingState *pending)
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{
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MetaWaylandActorSurface *actor_surface =
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META_WAYLAND_ACTOR_SURFACE (surface_role);
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MetaWaylandSurface *surface =
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meta_wayland_surface_role_get_surface (surface_role);
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MetaWaylandSurface *toplevel_surface;
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meta_wayland_actor_surface_queue_frame_callbacks (actor_surface, pending);
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toplevel_surface = meta_wayland_surface_get_toplevel (surface);
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if (!toplevel_surface || !toplevel_surface->window)
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return;
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meta_wayland_actor_surface_sync_actor_state (actor_surface);
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}
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static gboolean
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meta_wayland_actor_surface_is_on_logical_monitor (MetaWaylandSurfaceRole *surface_role,
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MetaLogicalMonitor *logical_monitor)
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{
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MetaWaylandActorSurfacePrivate *priv =
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meta_wayland_actor_surface_get_instance_private (META_WAYLAND_ACTOR_SURFACE (surface_role));
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ClutterActor *actor = CLUTTER_ACTOR (priv->actor);
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float x, y, width, height;
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cairo_rectangle_int_t actor_rect;
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cairo_region_t *region;
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MetaRectangle logical_monitor_layout;
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gboolean is_on_monitor;
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clutter_actor_get_transformed_position (actor, &x, &y);
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clutter_actor_get_transformed_size (actor, &width, &height);
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actor_rect.x = (int) roundf (x);
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actor_rect.y = (int) roundf (y);
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actor_rect.width = (int) roundf (x + width) - actor_rect.x;
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actor_rect.height = (int) roundf (y + height) - actor_rect.y;
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/* Calculate the scaled surface actor region. */
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region = cairo_region_create_rectangle (&actor_rect);
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logical_monitor_layout = meta_logical_monitor_get_layout (logical_monitor);
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cairo_region_intersect_rectangle (region,
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&((cairo_rectangle_int_t) {
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.x = logical_monitor_layout.x,
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.y = logical_monitor_layout.y,
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.width = logical_monitor_layout.width,
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.height = logical_monitor_layout.height,
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}));
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is_on_monitor = !cairo_region_is_empty (region);
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cairo_region_destroy (region);
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return is_on_monitor;
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}
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static void
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meta_wayland_actor_surface_init (MetaWaylandActorSurface *role)
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{
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}
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static void
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meta_wayland_actor_surface_class_init (MetaWaylandActorSurfaceClass *klass)
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{
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MetaWaylandSurfaceRoleClass *surface_role_class =
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META_WAYLAND_SURFACE_ROLE_CLASS (klass);
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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object_class->constructed = meta_wayland_actor_surface_constructed;
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object_class->dispose = meta_wayland_actor_surface_dispose;
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surface_role_class->assigned = meta_wayland_actor_surface_assigned;
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surface_role_class->commit = meta_wayland_actor_surface_commit;
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surface_role_class->is_on_logical_monitor =
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meta_wayland_actor_surface_is_on_logical_monitor;
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klass->sync_actor_state = meta_wayland_actor_surface_real_sync_actor_state;
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}
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MetaSurfaceActor *
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meta_wayland_actor_surface_get_actor (MetaWaylandActorSurface *actor_surface)
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{
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MetaWaylandActorSurfacePrivate *priv =
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meta_wayland_actor_surface_get_instance_private (actor_surface);
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return priv->actor;
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}
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void
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meta_wayland_actor_surface_reset_actor (MetaWaylandActorSurface *actor_surface)
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{
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MetaWaylandActorSurfacePrivate *priv =
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meta_wayland_actor_surface_get_instance_private (actor_surface);
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MetaWaylandSurface *surface =
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meta_wayland_surface_role_get_surface (META_WAYLAND_SURFACE_ROLE (actor_surface));
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if (priv->actor)
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{
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g_signal_handlers_disconnect_by_func (priv->actor,
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meta_wayland_surface_notify_geometry_changed,
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surface);
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g_object_unref (priv->actor);
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}
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priv->actor = g_object_ref_sink (meta_surface_actor_wayland_new (surface));
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g_signal_connect_swapped (priv->actor, "notify::allocation",
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G_CALLBACK (meta_wayland_surface_notify_geometry_changed),
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surface);
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g_signal_connect_swapped (priv->actor, "notify::position",
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G_CALLBACK (meta_wayland_surface_notify_geometry_changed),
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surface);
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g_signal_connect_swapped (priv->actor, "notify::mapped",
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G_CALLBACK (meta_wayland_surface_notify_geometry_changed),
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surface);
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}
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