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mutter/src/wayland/meta-wayland-surface.c
Jonas Ådahl 2cb7499735 wayland: Add single pixel buffer support 
The "single pixel buffer" Wayland protocol extension provides a way for
clients to create 1x1 buffers with a single color, specified by
providing the color channels (red, green and blue) as well as the
alpha channel as a 32 bit unsigned integer.

For now, this is turned into a 1x1 texture. Future potential
improvements is to hook things up to the scanout candidate logic and
turn it into a scanout capable DMA buffer.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2246>
2022-08-02 12:19:42 +00:00

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/*
* Wayland Support
*
* Copyright (C) 2012,2013 Intel Corporation
* Copyright (C) 2013-2017 Red Hat, Inc.
*
* 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.
*/
#include "config.h"
#include "wayland/meta-wayland-surface.h"
#include <gobject/gvaluecollector.h>
#include <wayland-server.h>
#include "backends/meta-cursor-tracker-private.h"
#include "clutter/clutter.h"
#include "cogl/cogl.h"
#include "compositor/meta-surface-actor-wayland.h"
#include "compositor/meta-surface-actor.h"
#include "compositor/meta-window-actor-private.h"
#include "compositor/region-utils.h"
#include "core/display-private.h"
#include "core/window-private.h"
#include "wayland/meta-wayland-actor-surface.h"
#include "wayland/meta-wayland-buffer.h"
#include "wayland/meta-wayland-data-device.h"
#include "wayland/meta-wayland-gtk-shell.h"
#include "wayland/meta-wayland-keyboard.h"
#include "wayland/meta-wayland-outputs.h"
#include "wayland/meta-wayland-pointer.h"
#include "wayland/meta-wayland-presentation-time-private.h"
#include "wayland/meta-wayland-private.h"
#include "wayland/meta-wayland-region.h"
#include "wayland/meta-wayland-seat.h"
#include "wayland/meta-wayland-subsurface.h"
#include "wayland/meta-wayland-viewporter.h"
#include "wayland/meta-wayland-xdg-shell.h"
#include "wayland/meta-window-wayland.h"
#include "wayland/meta-xwayland-private.h"
#include "wayland/meta-xwayland-private.h"
enum
{
SURFACE_STATE_SIGNAL_APPLIED,
SURFACE_STATE_SIGNAL_N_SIGNALS
};
enum
{
SURFACE_ROLE_PROP_0,
SURFACE_ROLE_PROP_SURFACE,
};
static guint surface_state_signals[SURFACE_STATE_SIGNAL_N_SIGNALS];
typedef struct _MetaWaylandSurfaceRolePrivate
{
MetaWaylandSurface *surface;
} MetaWaylandSurfaceRolePrivate;
enum
{
PROP_0,
PROP_SCANOUT_CANDIDATE,
N_PROPS
};
static GParamSpec *obj_props[N_PROPS];
G_DEFINE_TYPE (MetaWaylandSurface, meta_wayland_surface, G_TYPE_OBJECT);
G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE (MetaWaylandSurfaceRole,
meta_wayland_surface_role,
G_TYPE_OBJECT)
G_DEFINE_TYPE (MetaWaylandSurfaceState,
meta_wayland_surface_state,
G_TYPE_OBJECT)
enum
{
SURFACE_DESTROY,
SURFACE_UNMAPPED,
SURFACE_CONFIGURE,
SURFACE_SHORTCUTS_INHIBITED,
SURFACE_SHORTCUTS_RESTORED,
SURFACE_GEOMETRY_CHANGED,
SURFACE_PRE_STATE_APPLIED,
N_SURFACE_SIGNALS
};
guint surface_signals[N_SURFACE_SIGNALS] = { 0 };
static void
meta_wayland_surface_role_assigned (MetaWaylandSurfaceRole *surface_role);
static void
meta_wayland_surface_role_pre_apply_state (MetaWaylandSurfaceRole *surface_role,
MetaWaylandSurfaceState *pending);
static void
meta_wayland_surface_role_apply_state (MetaWaylandSurfaceRole *surface_role,
MetaWaylandSurfaceState *pending);
static void
meta_wayland_surface_role_post_apply_state (MetaWaylandSurfaceRole *surface_role,
MetaWaylandSurfaceState *pending);
static gboolean
meta_wayland_surface_role_is_on_logical_monitor (MetaWaylandSurfaceRole *surface_role,
MetaLogicalMonitor *logical_monitor);
static MetaWaylandSurface *
meta_wayland_surface_role_get_toplevel (MetaWaylandSurfaceRole *surface_role);
static void
set_surface_is_on_output (MetaWaylandSurface *surface,
MetaWaylandOutput *wayland_output,
gboolean is_on_output);
static MetaWaylandBufferRef *
meta_wayland_buffer_ref_new (void)
{
MetaWaylandBufferRef *buffer_ref;
buffer_ref = g_new0 (MetaWaylandBufferRef, 1);
g_ref_count_init (&buffer_ref->ref_count);
return buffer_ref;
}
static MetaWaylandBufferRef *
meta_wayland_buffer_ref_ref (MetaWaylandBufferRef *buffer_ref)
{
g_ref_count_inc (&buffer_ref->ref_count);
return buffer_ref;
}
static void
meta_wayland_buffer_ref_unref (MetaWaylandBufferRef *buffer_ref)
{
if (g_ref_count_dec (&buffer_ref->ref_count))
{
g_warn_if_fail (buffer_ref->use_count == 0);
g_clear_object (&buffer_ref->buffer);
g_free (buffer_ref);
}
}
static void
meta_wayland_buffer_ref_inc_use_count (MetaWaylandBufferRef *buffer_ref)
{
g_return_if_fail (buffer_ref->buffer);
g_warn_if_fail (buffer_ref->buffer->resource);
buffer_ref->use_count++;
}
static void
meta_wayland_buffer_ref_dec_use_count (MetaWaylandBufferRef *buffer_ref)
{
MetaWaylandBuffer *buffer = buffer_ref->buffer;
g_return_if_fail (buffer_ref->use_count > 0);
g_return_if_fail (buffer);
buffer_ref->use_count--;
if (buffer_ref->use_count == 0 && buffer->resource)
wl_buffer_send_release (buffer->resource);
}
static void
role_assignment_valist_to_properties (GType role_type,
const char *first_property_name,
va_list var_args,
GArray *names,
GArray *values)
{
GObjectClass *object_class;
const char *property_name = first_property_name;
object_class = g_type_class_ref (role_type);
while (property_name)
{
GValue value = G_VALUE_INIT;
GParamSpec *pspec;
GType ptype;
gchar *error = NULL;
pspec = g_object_class_find_property (object_class,
property_name);
g_assert (pspec);
ptype = G_PARAM_SPEC_VALUE_TYPE (pspec);
G_VALUE_COLLECT_INIT (&value, ptype, var_args, 0, &error);
g_assert (!error);
g_array_append_val (names, property_name);
g_array_append_val (values, value);
property_name = va_arg (var_args, const char *);
}
g_type_class_unref (object_class);
}
gboolean
meta_wayland_surface_assign_role (MetaWaylandSurface *surface,
GType role_type,
const char *first_property_name,
...)
{
va_list var_args;
if (!surface->role)
{
if (first_property_name)
{
GArray *names;
GArray *values;
const char *surface_prop_name;
GValue surface_value = G_VALUE_INIT;
GObject *role_object;
names = g_array_new (FALSE, FALSE, sizeof (const char *));
values = g_array_new (FALSE, FALSE, sizeof (GValue));
g_array_set_clear_func (values, (GDestroyNotify) g_value_unset);
va_start (var_args, first_property_name);
role_assignment_valist_to_properties (role_type,
first_property_name,
var_args,
names,
values);
va_end (var_args);
surface_prop_name = "surface";
g_value_init (&surface_value, META_TYPE_WAYLAND_SURFACE);
g_value_set_object (&surface_value, surface);
g_array_append_val (names, surface_prop_name);
g_array_append_val (values, surface_value);
role_object =
g_object_new_with_properties (role_type,
values->len,
(const char **) names->data,
(const GValue *) values->data);
surface->role = META_WAYLAND_SURFACE_ROLE (role_object);
g_array_free (names, TRUE);
g_array_free (values, TRUE);
}
else
{
surface->role = g_object_new (role_type, "surface", surface, NULL);
}
meta_wayland_surface_role_assigned (surface->role);
/* Release the use count held on behalf of the just assigned role. */
if (surface->unassigned.buffer)
{
meta_wayland_surface_unref_buffer_use_count (surface);
g_clear_object (&surface->unassigned.buffer);
}
return TRUE;
}
else if (G_OBJECT_TYPE (surface->role) != role_type)
{
return FALSE;
}
else
{
va_start (var_args, first_property_name);
g_object_set_valist (G_OBJECT (surface->role),
first_property_name, var_args);
va_end (var_args);
meta_wayland_surface_role_assigned (surface->role);
return TRUE;
}
}
static int
get_buffer_width (MetaWaylandSurface *surface)
{
MetaWaylandBuffer *buffer = meta_wayland_surface_get_buffer (surface);
if (buffer)
return cogl_texture_get_width (surface->texture);
else
return 0;
}
static int
get_buffer_height (MetaWaylandSurface *surface)
{
MetaWaylandBuffer *buffer = meta_wayland_surface_get_buffer (surface);
if (buffer)
return cogl_texture_get_height (surface->texture);
else
return 0;
}
static void
surface_process_damage (MetaWaylandSurface *surface,
cairo_region_t *surface_region,
cairo_region_t *buffer_region)
{
MetaWaylandBuffer *buffer = meta_wayland_surface_get_buffer (surface);
cairo_rectangle_int_t buffer_rect;
MetaSurfaceActor *actor;
/* If the client destroyed the buffer it attached before committing, but
* still posted damage, or posted damage without any buffer, don't try to
* process it on the non-existing buffer.
*/
if (!buffer)
return;
buffer_rect = (cairo_rectangle_int_t) {
.width = get_buffer_width (surface),
.height = get_buffer_height (surface),
};
if (!cairo_region_is_empty (surface_region))
{
cairo_rectangle_int_t surface_rect;
cairo_region_t *scaled_region;
cairo_region_t *transformed_region;
cairo_region_t *viewport_region;
graphene_rect_t src_rect;
/* Intersect the damage region with the surface region before scaling in
* order to avoid integer overflow when scaling a damage region is too
* large (for example INT32_MAX which mesa passes). */
surface_rect = (cairo_rectangle_int_t) {
.width = meta_wayland_surface_get_width (surface),
.height = meta_wayland_surface_get_height (surface),
};
cairo_region_intersect_rectangle (surface_region, &surface_rect);
/* The damage region must be in the same coordinate space as the buffer,
* i.e. scaled with surface->scale. */
if (surface->viewport.has_src_rect)
{
src_rect = (graphene_rect_t) {
.origin.x = surface->viewport.src_rect.origin.x,
.origin.y = surface->viewport.src_rect.origin.y,
.size.width = surface->viewport.src_rect.size.width,
.size.height = surface->viewport.src_rect.size.height
};
}
else
{
int width, height;
if (meta_monitor_transform_is_rotated (surface->buffer_transform))
{
width = get_buffer_height (surface);
height = get_buffer_width (surface);
}
else
{
width = get_buffer_width (surface);
height = get_buffer_height (surface);
}
src_rect = (graphene_rect_t) {
.size.width = width / surface->scale,
.size.height = height / surface->scale
};
}
viewport_region = meta_region_crop_and_scale (surface_region,
&src_rect,
surface_rect.width,
surface_rect.height);
scaled_region = meta_region_scale (viewport_region, surface->scale);
transformed_region = meta_region_transform (scaled_region,
surface->buffer_transform,
buffer_rect.width,
buffer_rect.height);
/* Now add the scaled, cropped and transformed damage region to the
* buffer damage. Buffer damage is already in the correct coordinate
* space. */
cairo_region_union (buffer_region, transformed_region);
cairo_region_destroy (viewport_region);
cairo_region_destroy (scaled_region);
cairo_region_destroy (transformed_region);
}
cairo_region_intersect_rectangle (buffer_region, &buffer_rect);
meta_wayland_buffer_process_damage (buffer, surface->texture, buffer_region);
actor = meta_wayland_surface_get_actor (surface);
if (actor)
{
int i, n_rectangles;
n_rectangles = cairo_region_num_rectangles (buffer_region);
for (i = 0; i < n_rectangles; i++)
{
cairo_rectangle_int_t rect;
cairo_region_get_rectangle (buffer_region, i, &rect);
meta_surface_actor_process_damage (actor,
rect.x, rect.y,
rect.width, rect.height);
}
}
}
MetaWaylandBuffer *
meta_wayland_surface_get_buffer (MetaWaylandSurface *surface)
{
return surface->buffer_ref->buffer;
}
void
meta_wayland_surface_ref_buffer_use_count (MetaWaylandSurface *surface)
{
meta_wayland_buffer_ref_inc_use_count (surface->buffer_ref);
}
void
meta_wayland_surface_unref_buffer_use_count (MetaWaylandSurface *surface)
{
meta_wayland_buffer_ref_dec_use_count (surface->buffer_ref);
}
static void
pending_buffer_resource_destroyed (MetaWaylandBuffer *buffer,
MetaWaylandSurfaceState *pending)
{
g_clear_signal_handler (&pending->buffer_destroy_handler_id, buffer);
pending->buffer = NULL;
}
static void
meta_wayland_surface_state_set_default (MetaWaylandSurfaceState *state)
{
state->newly_attached = FALSE;
state->buffer = NULL;
state->buffer_destroy_handler_id = 0;
state->dx = 0;
state->dy = 0;
state->scale = 0;
state->input_region = NULL;
state->input_region_set = FALSE;
state->opaque_region = NULL;
state->opaque_region_set = FALSE;
state->surface_damage = cairo_region_create ();
state->buffer_damage = cairo_region_create ();
wl_list_init (&state->frame_callback_list);
state->has_new_geometry = FALSE;
state->has_acked_configure_serial = FALSE;
state->has_new_min_size = FALSE;
state->has_new_max_size = FALSE;
state->has_new_buffer_transform = FALSE;
state->has_new_viewport_src_rect = FALSE;
state->has_new_viewport_dst_size = FALSE;
state->subsurface_placement_ops = NULL;
wl_list_init (&state->presentation_feedback_list);
}
static void
meta_wayland_surface_state_discard_presentation_feedback (MetaWaylandSurfaceState *state)
{
while (!wl_list_empty (&state->presentation_feedback_list))
{
MetaWaylandPresentationFeedback *feedback =
wl_container_of (state->presentation_feedback_list.next, feedback, link);
meta_wayland_presentation_feedback_discard (feedback);
}
}
static void
meta_wayland_surface_state_clear (MetaWaylandSurfaceState *state)
{
MetaWaylandFrameCallback *cb, *next;
g_clear_pointer (&state->surface_damage, cairo_region_destroy);
g_clear_pointer (&state->buffer_damage, cairo_region_destroy);
g_clear_pointer (&state->input_region, cairo_region_destroy);
g_clear_pointer (&state->opaque_region, cairo_region_destroy);
if (state->buffer)
g_clear_signal_handler (&state->buffer_destroy_handler_id, state->buffer);
wl_list_for_each_safe (cb, next, &state->frame_callback_list, link)
wl_resource_destroy (cb->resource);
if (state->subsurface_placement_ops)
{
g_slist_free_full (
state->subsurface_placement_ops,
(GDestroyNotify) meta_wayland_subsurface_placement_op_free);
}
meta_wayland_surface_state_discard_presentation_feedback (state);
}
static void
meta_wayland_surface_state_reset (MetaWaylandSurfaceState *state)
{
meta_wayland_surface_state_clear (state);
meta_wayland_surface_state_set_default (state);
}
static void
meta_wayland_surface_state_merge_into (MetaWaylandSurfaceState *from,
MetaWaylandSurfaceState *to)
{
if (from->newly_attached)
{
if (to->buffer)
g_clear_signal_handler (&to->buffer_destroy_handler_id, to->buffer);
to->newly_attached = TRUE;
to->buffer = from->buffer;
}
to->dx += from->dx;
to->dy += from->dy;
wl_list_insert_list (&to->frame_callback_list, &from->frame_callback_list);
wl_list_init (&from->frame_callback_list);
cairo_region_union (to->surface_damage, from->surface_damage);
cairo_region_union (to->buffer_damage, from->buffer_damage);
if (from->input_region_set)
{
if (to->input_region)
cairo_region_union (to->input_region, from->input_region);
else
to->input_region = cairo_region_reference (from->input_region);
to->input_region_set = TRUE;
}
if (from->opaque_region_set)
{
if (to->opaque_region)
cairo_region_union (to->opaque_region, from->opaque_region);
else
to->opaque_region = cairo_region_reference (from->opaque_region);
to->opaque_region_set = TRUE;
}
if (from->has_new_geometry)
{
to->new_geometry = from->new_geometry;
to->has_new_geometry = TRUE;
}
if (from->has_acked_configure_serial)
{
to->acked_configure_serial = from->acked_configure_serial;
to->has_acked_configure_serial = TRUE;
}
if (from->has_new_min_size)
{
to->new_min_width = from->new_min_width;
to->new_min_height = from->new_min_height;
to->has_new_min_size = TRUE;
}
if (from->has_new_max_size)
{
to->new_max_width = from->new_max_width;
to->new_max_height = from->new_max_height;
to->has_new_max_size = TRUE;
}
if (from->scale > 0)
to->scale = from->scale;
if (from->has_new_buffer_transform)
{
to->buffer_transform = from->buffer_transform;
to->has_new_buffer_transform = TRUE;
}
if (from->has_new_viewport_src_rect)
{
to->viewport_src_rect.origin.x = from->viewport_src_rect.origin.x;
to->viewport_src_rect.origin.y = from->viewport_src_rect.origin.y;
to->viewport_src_rect.size.width = from->viewport_src_rect.size.width;
to->viewport_src_rect.size.height = from->viewport_src_rect.size.height;
to->has_new_viewport_src_rect = TRUE;
}
if (from->has_new_viewport_dst_size)
{
to->viewport_dst_width = from->viewport_dst_width;
to->viewport_dst_height = from->viewport_dst_height;
to->has_new_viewport_dst_size = TRUE;
}
if (to->buffer && to->buffer_destroy_handler_id == 0)
{
to->buffer_destroy_handler_id =
g_signal_connect (to->buffer, "resource-destroyed",
G_CALLBACK (pending_buffer_resource_destroyed),
to);
}
if (from->subsurface_placement_ops != NULL)
{
if (to->subsurface_placement_ops != NULL)
{
to->subsurface_placement_ops =
g_slist_concat (to->subsurface_placement_ops,
from->subsurface_placement_ops);
}
else
{
to->subsurface_placement_ops = from->subsurface_placement_ops;
}
from->subsurface_placement_ops = NULL;
}
wl_list_insert_list (&to->presentation_feedback_list,
&from->presentation_feedback_list);
wl_list_init (&from->presentation_feedback_list);
meta_wayland_surface_state_reset (from);
}
static void
meta_wayland_surface_state_finalize (GObject *object)
{
MetaWaylandSurfaceState *state = META_WAYLAND_SURFACE_STATE (object);
meta_wayland_surface_state_clear (state);
G_OBJECT_CLASS (meta_wayland_surface_state_parent_class)->finalize (object);
}
static void
meta_wayland_surface_state_init (MetaWaylandSurfaceState *state)
{
meta_wayland_surface_state_set_default (state);
}
static void
meta_wayland_surface_state_class_init (MetaWaylandSurfaceStateClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = meta_wayland_surface_state_finalize;
surface_state_signals[SURFACE_STATE_SIGNAL_APPLIED] =
g_signal_new ("applied",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL, NULL,
G_TYPE_NONE, 0);
}
static void
meta_wayland_surface_discard_presentation_feedback (MetaWaylandSurface *surface)
{
while (!wl_list_empty (&surface->presentation_time.feedback_list))
{
MetaWaylandPresentationFeedback *feedback =
wl_container_of (surface->presentation_time.feedback_list.next,
feedback, link);
meta_wayland_presentation_feedback_discard (feedback);
}
}
static void
meta_wayland_surface_apply_state (MetaWaylandSurface *surface,
MetaWaylandSurfaceState *state)
{
MetaWaylandSurface *subsurface_surface;
gboolean had_damage = FALSE;
g_signal_emit (surface, surface_signals[SURFACE_PRE_STATE_APPLIED], 0);
if (surface->role)
{
meta_wayland_surface_role_pre_apply_state (surface->role, state);
}
else
{
if (state->newly_attached && surface->unassigned.buffer)
{
meta_wayland_surface_unref_buffer_use_count (surface);
g_clear_object (&surface->unassigned.buffer);
}
}
if (state->newly_attached)
{
/* Always release any previously held buffer. If the buffer held is same
* as the newly attached buffer, we still need to release it here, because
* wl_surface.attach+commit and wl_buffer.release on the attached buffer
* is symmetric.
*/
if (surface->buffer_held)
meta_wayland_surface_unref_buffer_use_count (surface);
if (surface->buffer_ref->use_count > 0)
{
meta_wayland_buffer_ref_unref (surface->buffer_ref);
surface->buffer_ref = meta_wayland_buffer_ref_new ();
}
g_set_object (&surface->buffer_ref->buffer, state->buffer);
if (state->buffer)
meta_wayland_surface_ref_buffer_use_count (surface);
if (state->buffer)
{
GError *error = NULL;
if (!meta_wayland_buffer_attach (state->buffer,
&surface->texture,
&error))
{
g_warning ("Could not import pending buffer: %s", error->message);
wl_resource_post_error (surface->resource, WL_DISPLAY_ERROR_NO_MEMORY,
"Failed to attach buffer to surface %i: %s",
wl_resource_get_id (surface->resource),
error->message);
g_error_free (error);
goto cleanup;
}
}
else
{
cogl_clear_object (&surface->texture);
}
/* If the newly attached buffer is going to be accessed directly without
* making a copy, such as an EGL buffer, mark it as in-use don't release
* it until is replaced by a subsequent wl_surface.commit or when the
* wl_surface is destroyed.
*/
surface->buffer_held =
(state->buffer &&
(state->buffer->type != META_WAYLAND_BUFFER_TYPE_SHM &&
state->buffer->type != META_WAYLAND_BUFFER_TYPE_SINGLE_PIXEL));
}
if (state->scale > 0)
surface->scale = state->scale;
if ((get_buffer_width (surface) % surface->scale != 0) ||
(get_buffer_height (surface) % surface->scale != 0))
{
struct wl_resource *resource = surface->resource;
pid_t pid;
wl_client_get_credentials (wl_resource_get_client (resource), &pid, NULL,
NULL);
g_warning ("Bug in client with pid %ld: Buffer size (%dx%d) is not an"
"integer multiple of the buffer_scale (%d).", (long) pid,
get_buffer_width (surface), get_buffer_height (surface),
surface->scale);
}
if (state->has_new_buffer_transform)
surface->buffer_transform = state->buffer_transform;
if (state->has_new_viewport_src_rect)
{
surface->viewport.src_rect.origin.x = state->viewport_src_rect.origin.x;
surface->viewport.src_rect.origin.y = state->viewport_src_rect.origin.y;
surface->viewport.src_rect.size.width = state->viewport_src_rect.size.width;
surface->viewport.src_rect.size.height = state->viewport_src_rect.size.height;
surface->viewport.has_src_rect = surface->viewport.src_rect.size.width > 0;
}
if (state->has_new_viewport_dst_size)
{
surface->viewport.dst_width = state->viewport_dst_width;
surface->viewport.dst_height = state->viewport_dst_height;
surface->viewport.has_dst_size = surface->viewport.dst_width > 0;
}
if (!cairo_region_is_empty (state->surface_damage) ||
!cairo_region_is_empty (state->buffer_damage))
{
surface_process_damage (surface,
state->surface_damage,
state->buffer_damage);
had_damage = TRUE;
}
surface->offset_x += state->dx;
surface->offset_y += state->dy;
if (state->opaque_region_set)
{
if (surface->opaque_region)
cairo_region_destroy (surface->opaque_region);
if (state->opaque_region)
surface->opaque_region = cairo_region_reference (state->opaque_region);
else
surface->opaque_region = NULL;
}
if (state->input_region_set)
{
if (surface->input_region)
cairo_region_destroy (surface->input_region);
if (state->input_region)
surface->input_region = cairo_region_reference (state->input_region);
else
surface->input_region = NULL;
}
/*
* A new commit indicates a new content update, so any previous
* content update did not go on screen and needs to be discarded.
*/
meta_wayland_surface_discard_presentation_feedback (surface);
wl_list_insert_list (&surface->presentation_time.feedback_list,
&state->presentation_feedback_list);
wl_list_init (&state->presentation_feedback_list);
if (!wl_list_empty (&surface->presentation_time.feedback_list))
meta_wayland_compositor_add_presentation_feedback_surface (surface->compositor,
surface);
if (surface->role)
{
meta_wayland_surface_role_apply_state (surface->role, state);
g_assert (wl_list_empty (&state->frame_callback_list));
}
else
{
wl_list_insert_list (surface->unassigned.pending_frame_callback_list.prev,
&state->frame_callback_list);
wl_list_init (&state->frame_callback_list);
if (state->newly_attached)
{
/* The need to keep the wl_buffer from being released depends on what
* role the surface is given. That means we need to also keep a use
* count for wl_buffer's that are used by unassigned wl_surface's.
*/
g_set_object (&surface->unassigned.buffer,
surface->buffer_ref->buffer);
if (surface->unassigned.buffer)
meta_wayland_surface_ref_buffer_use_count (surface);
}
}
if (state->subsurface_placement_ops)
{
GSList *l;
for (l = state->subsurface_placement_ops; l; l = l->next)
{
MetaWaylandSubsurfacePlacementOp *op = l->data;
GNode *sibling_node;
if (!op->surface || !op->sibling)
continue;
if (op->sibling == surface)
sibling_node = surface->subsurface_leaf_node;
else
sibling_node = op->sibling->subsurface_branch_node;
g_node_unlink (op->surface->subsurface_branch_node);
switch (op->placement)
{
case META_WAYLAND_SUBSURFACE_PLACEMENT_ABOVE:
g_node_insert_after (surface->subsurface_branch_node,
sibling_node,
op->surface->subsurface_branch_node);
break;
case META_WAYLAND_SUBSURFACE_PLACEMENT_BELOW:
g_node_insert_before (surface->subsurface_branch_node,
sibling_node,
op->surface->subsurface_branch_node);
break;
}
}
meta_wayland_surface_notify_subsurface_state_changed (surface);
}
cleanup:
/* If we have a buffer that we are not using, decrease the use count so it may
* be released if no-one else has a use-reference to it.
*/
if (state->newly_attached &&
!surface->buffer_held && surface->buffer_ref->buffer)
meta_wayland_surface_unref_buffer_use_count (surface);
g_signal_emit (state,
surface_state_signals[SURFACE_STATE_SIGNAL_APPLIED],
0);
META_WAYLAND_SURFACE_FOREACH_SUBSURFACE (surface, subsurface_surface)
{
MetaWaylandSubsurface *subsurface;
subsurface = META_WAYLAND_SUBSURFACE (subsurface_surface->role);
meta_wayland_subsurface_parent_state_applied (subsurface);
}
if (had_damage)
{
MetaWindow *toplevel_window;
toplevel_window = meta_wayland_surface_get_toplevel_window (surface);
if (toplevel_window)
{
MetaWindowActor *toplevel_window_actor;
toplevel_window_actor =
meta_window_actor_from_window (toplevel_window);
if (toplevel_window_actor)
meta_window_actor_notify_damaged (toplevel_window_actor);
}
}
if (surface->role)
meta_wayland_surface_role_post_apply_state (surface->role, state);
meta_wayland_surface_state_reset (state);
}
static void
ensure_cached_state (MetaWaylandSurface *surface)
{
if (!surface->cached_state)
surface->cached_state = g_object_new (META_TYPE_WAYLAND_SURFACE_STATE,
NULL);
}
void
meta_wayland_surface_apply_cached_state (MetaWaylandSurface *surface)
{
ensure_cached_state (surface);
meta_wayland_surface_apply_state (surface, surface->cached_state);
}
MetaWaylandSurfaceState *
meta_wayland_surface_get_pending_state (MetaWaylandSurface *surface)
{
return surface->pending_state;
}
static void
meta_wayland_surface_commit (MetaWaylandSurface *surface)
{
MetaWaylandSurfaceState *pending = surface->pending_state;
COGL_TRACE_BEGIN_SCOPED (MetaWaylandSurfaceCommit,
"WaylandSurface (commit)");
if (pending->buffer &&
!meta_wayland_buffer_is_realized (pending->buffer))
meta_wayland_buffer_realize (pending->buffer);
/*
* If this is a sub-surface and it is in effective synchronous mode, only
* cache the pending surface state until either one of the following two
* scenarios happens:
* 1) Its parent surface gets its state applied.
* 2) Its mode changes from synchronized to desynchronized and its parent
* surface is in effective desynchronized mode.
*/
if (meta_wayland_surface_should_cache_state (surface))
{
ensure_cached_state (surface);
/*
* A new commit indicates a new content update, so any previous
* cached content update did not go on screen and needs to be discarded.
*/
meta_wayland_surface_state_discard_presentation_feedback (surface->cached_state);
meta_wayland_surface_state_merge_into (pending, surface->cached_state);
}
else
{
meta_wayland_surface_apply_state (surface, surface->pending_state);
}
}
static void
wl_surface_destroy (struct wl_client *client,
struct wl_resource *resource)
{
wl_resource_destroy (resource);
}
static void
wl_surface_attach (struct wl_client *client,
struct wl_resource *surface_resource,
struct wl_resource *buffer_resource,
int32_t dx,
int32_t dy)
{
MetaWaylandSurface *surface =
wl_resource_get_user_data (surface_resource);
MetaWaylandCompositor *compositor = surface->compositor;
MetaWaylandSurfaceState *pending = surface->pending_state;
MetaWaylandBuffer *buffer;
if (buffer_resource)
buffer = meta_wayland_buffer_from_resource (compositor, buffer_resource);
else
buffer = NULL;
if (surface->pending_state->buffer)
{
g_clear_signal_handler (&pending->buffer_destroy_handler_id,
pending->buffer);
}
if (wl_resource_get_version (surface_resource) >=
WL_SURFACE_OFFSET_SINCE_VERSION &&
(dx != 0 || dy != 0))
{
wl_resource_post_error (surface_resource,
WL_SURFACE_ERROR_INVALID_OFFSET,
"Attaching with an offset is no longer allowed");
return;
}
pending->newly_attached = TRUE;
pending->buffer = buffer;
pending->dx = dx;
pending->dy = dy;
if (buffer)
{
pending->buffer_destroy_handler_id =
g_signal_connect (buffer, "resource-destroyed",
G_CALLBACK (pending_buffer_resource_destroyed),
pending);
}
}
static void
wl_surface_damage (struct wl_client *client,
struct wl_resource *surface_resource,
int32_t x,
int32_t y,
int32_t width,
int32_t height)
{
MetaWaylandSurface *surface = wl_resource_get_user_data (surface_resource);
MetaWaylandSurfaceState *pending = surface->pending_state;
cairo_rectangle_int_t rectangle;
rectangle = (cairo_rectangle_int_t) {
.x = x,
.y = y,
.width = width,
.height = height
};
cairo_region_union_rectangle (pending->surface_damage, &rectangle);
}
static void
destroy_frame_callback (struct wl_resource *callback_resource)
{
MetaWaylandFrameCallback *callback =
wl_resource_get_user_data (callback_resource);
wl_list_remove (&callback->link);
g_free (callback);
}
static void
wl_surface_frame (struct wl_client *client,
struct wl_resource *surface_resource,
uint32_t callback_id)
{
MetaWaylandFrameCallback *callback;
MetaWaylandSurface *surface = wl_resource_get_user_data (surface_resource);
MetaWaylandSurfaceState *pending = surface->pending_state;
callback = g_new0 (MetaWaylandFrameCallback, 1);
callback->surface = surface;
callback->resource = wl_resource_create (client,
&wl_callback_interface,
META_WL_CALLBACK_VERSION,
callback_id);
wl_resource_set_implementation (callback->resource, NULL, callback,
destroy_frame_callback);
wl_list_insert (pending->frame_callback_list.prev, &callback->link);
}
static void
wl_surface_set_opaque_region (struct wl_client *client,
struct wl_resource *surface_resource,
struct wl_resource *region_resource)
{
MetaWaylandSurface *surface = wl_resource_get_user_data (surface_resource);
MetaWaylandSurfaceState *pending = surface->pending_state;
g_clear_pointer (&pending->opaque_region, cairo_region_destroy);
if (region_resource)
{
MetaWaylandRegion *region = wl_resource_get_user_data (region_resource);
cairo_region_t *cr_region = meta_wayland_region_peek_cairo_region (region);
pending->opaque_region = cairo_region_copy (cr_region);
}
pending->opaque_region_set = TRUE;
}
static void
wl_surface_set_input_region (struct wl_client *client,
struct wl_resource *surface_resource,
struct wl_resource *region_resource)
{
MetaWaylandSurface *surface = wl_resource_get_user_data (surface_resource);
MetaWaylandSurfaceState *pending = surface->pending_state;
g_clear_pointer (&pending->input_region, cairo_region_destroy);
if (region_resource)
{
MetaWaylandRegion *region = wl_resource_get_user_data (region_resource);
cairo_region_t *cr_region = meta_wayland_region_peek_cairo_region (region);
pending->input_region = cairo_region_copy (cr_region);
}
pending->input_region_set = TRUE;
}
static void
wl_surface_commit (struct wl_client *client,
struct wl_resource *resource)
{
MetaWaylandSurface *surface = wl_resource_get_user_data (resource);
meta_wayland_surface_commit (surface);
}
static MetaMonitorTransform
transform_from_wl_output_transform (int32_t transform_value)
{
enum wl_output_transform transform = transform_value;
switch (transform)
{
case WL_OUTPUT_TRANSFORM_NORMAL:
return META_MONITOR_TRANSFORM_NORMAL;
case WL_OUTPUT_TRANSFORM_90:
return META_MONITOR_TRANSFORM_90;
case WL_OUTPUT_TRANSFORM_180:
return META_MONITOR_TRANSFORM_180;
case WL_OUTPUT_TRANSFORM_270:
return META_MONITOR_TRANSFORM_270;
case WL_OUTPUT_TRANSFORM_FLIPPED:
return META_MONITOR_TRANSFORM_FLIPPED;
case WL_OUTPUT_TRANSFORM_FLIPPED_90:
return META_MONITOR_TRANSFORM_FLIPPED_90;
case WL_OUTPUT_TRANSFORM_FLIPPED_180:
return META_MONITOR_TRANSFORM_FLIPPED_180;
case WL_OUTPUT_TRANSFORM_FLIPPED_270:
return META_MONITOR_TRANSFORM_FLIPPED_270;
default:
return -1;
}
}
static void
wl_surface_set_buffer_transform (struct wl_client *client,
struct wl_resource *resource,
int32_t transform)
{
MetaWaylandSurface *surface = wl_resource_get_user_data (resource);
MetaWaylandSurfaceState *pending = surface->pending_state;
MetaMonitorTransform buffer_transform;
buffer_transform = transform_from_wl_output_transform (transform);
if (buffer_transform == -1)
{
wl_resource_post_error (resource,
WL_SURFACE_ERROR_INVALID_TRANSFORM,
"Trying to set invalid buffer_transform of %d",
transform);
return;
}
pending->buffer_transform = buffer_transform;
pending->has_new_buffer_transform = TRUE;
}
static void
wl_surface_set_buffer_scale (struct wl_client *client,
struct wl_resource *resource,
int scale)
{
MetaWaylandSurface *surface = wl_resource_get_user_data (resource);
MetaWaylandSurfaceState *pending = surface->pending_state;
if (scale <= 0)
{
wl_resource_post_error (resource,
WL_SURFACE_ERROR_INVALID_SCALE,
"Trying to set invalid buffer_scale of %d",
scale);
return;
}
pending->scale = scale;
}
static void
wl_surface_damage_buffer (struct wl_client *client,
struct wl_resource *surface_resource,
int32_t x,
int32_t y,
int32_t width,
int32_t height)
{
MetaWaylandSurface *surface = wl_resource_get_user_data (surface_resource);
MetaWaylandSurfaceState *pending = surface->pending_state;
cairo_rectangle_int_t rectangle;
rectangle = (cairo_rectangle_int_t) {
.x = x,
.y = y,
.width = width,
.height = height
};
cairo_region_union_rectangle (pending->buffer_damage, &rectangle);
}
static void
wl_surface_offset (struct wl_client *client,
struct wl_resource *surface_resource,
int32_t dx,
int32_t dy)
{
MetaWaylandSurface *surface = wl_resource_get_user_data (surface_resource);
MetaWaylandSurfaceState *pending = surface->pending_state;
pending->dx = dx;
pending->dy = dy;
}
static const struct wl_surface_interface meta_wayland_wl_surface_interface = {
wl_surface_destroy,
wl_surface_attach,
wl_surface_damage,
wl_surface_frame,
wl_surface_set_opaque_region,
wl_surface_set_input_region,
wl_surface_commit,
wl_surface_set_buffer_transform,
wl_surface_set_buffer_scale,
wl_surface_damage_buffer,
wl_surface_offset,
};
static void
handle_output_destroyed (MetaWaylandOutput *wayland_output,
MetaWaylandSurface *surface)
{
set_surface_is_on_output (surface, wayland_output, FALSE);
}
static void
handle_output_bound (MetaWaylandOutput *wayland_output,
struct wl_resource *output_resource,
MetaWaylandSurface *surface)
{
if (wl_resource_get_client (output_resource) ==
wl_resource_get_client (surface->resource))
wl_surface_send_enter (surface->resource, output_resource);
}
static void
surface_entered_output (MetaWaylandSurface *surface,
MetaWaylandOutput *wayland_output)
{
const GList *l;
g_signal_connect (wayland_output, "output-destroyed",
G_CALLBACK (handle_output_destroyed),
surface);
for (l = meta_wayland_output_get_resources (wayland_output); l; l = l->next)
{
struct wl_resource *resource = l->data;
if (wl_resource_get_client (resource) !=
wl_resource_get_client (surface->resource))
continue;
wl_surface_send_enter (surface->resource, resource);
}
g_signal_connect (wayland_output, "output-bound",
G_CALLBACK (handle_output_bound),
surface);
}
static void
surface_left_output (MetaWaylandSurface *surface,
MetaWaylandOutput *wayland_output)
{
const GList *l;
g_signal_handlers_disconnect_by_func (wayland_output,
G_CALLBACK (handle_output_destroyed),
surface);
g_signal_handlers_disconnect_by_func (wayland_output,
G_CALLBACK (handle_output_bound),
surface);
for (l = meta_wayland_output_get_resources (wayland_output); l; l = l->next)
{
struct wl_resource *resource = l->data;
if (wl_resource_get_client (resource) !=
wl_resource_get_client (surface->resource))
continue;
wl_surface_send_leave (surface->resource, resource);
}
}
static void
set_surface_is_on_output (MetaWaylandSurface *surface,
MetaWaylandOutput *wayland_output,
gboolean is_on_output)
{
gboolean was_on_output;
was_on_output = g_hash_table_contains (surface->outputs, wayland_output);
if (!was_on_output && is_on_output)
{
g_hash_table_add (surface->outputs, wayland_output);
surface_entered_output (surface, wayland_output);
}
else if (was_on_output && !is_on_output)
{
g_hash_table_remove (surface->outputs, wayland_output);
surface_left_output (surface, wayland_output);
}
}
static void
update_surface_output_state (gpointer key, gpointer value, gpointer user_data)
{
MetaWaylandOutput *wayland_output = value;
MetaWaylandSurface *surface = user_data;
MetaLogicalMonitor *logical_monitor;
gboolean is_on_logical_monitor;
g_assert (surface->role);
logical_monitor = meta_wayland_output_get_logical_monitor (wayland_output);
if (!logical_monitor)
{
set_surface_is_on_output (surface, wayland_output, FALSE);
return;
}
is_on_logical_monitor =
meta_wayland_surface_role_is_on_logical_monitor (surface->role,
logical_monitor);
set_surface_is_on_output (surface, wayland_output, is_on_logical_monitor);
}
static void
surface_output_disconnect_signals (gpointer key,
gpointer value,
gpointer user_data)
{
MetaWaylandOutput *wayland_output = key;
MetaWaylandSurface *surface = user_data;
g_signal_handlers_disconnect_by_func (wayland_output,
G_CALLBACK (handle_output_destroyed),
surface);
g_signal_handlers_disconnect_by_func (wayland_output,
G_CALLBACK (handle_output_bound),
surface);
}
void
meta_wayland_surface_update_outputs (MetaWaylandSurface *surface)
{
if (!surface->compositor)
return;
g_hash_table_foreach (surface->compositor->outputs,
update_surface_output_state,
surface);
}
void
meta_wayland_surface_notify_unmapped (MetaWaylandSurface *surface)
{
g_signal_emit (surface, surface_signals[SURFACE_UNMAPPED], 0);
}
static void
wl_surface_destructor (struct wl_resource *resource)
{
MetaWaylandSurface *surface = wl_resource_get_user_data (resource);
MetaWaylandCompositor *compositor = surface->compositor;
MetaWaylandFrameCallback *cb, *next;
g_signal_emit (surface, surface_signals[SURFACE_DESTROY], 0);
g_clear_object (&surface->scanout_candidate);
g_clear_object (&surface->role);
if (surface->unassigned.buffer)
{
meta_wayland_surface_unref_buffer_use_count (surface);
g_clear_object (&surface->unassigned.buffer);
}
if (surface->buffer_held)
meta_wayland_surface_unref_buffer_use_count (surface);
g_clear_pointer (&surface->texture, cogl_object_unref);
g_clear_pointer (&surface->buffer_ref, meta_wayland_buffer_ref_unref);
g_clear_object (&surface->cached_state);
g_clear_object (&surface->pending_state);
if (surface->opaque_region)
cairo_region_destroy (surface->opaque_region);
if (surface->input_region)
cairo_region_destroy (surface->input_region);
meta_wayland_compositor_remove_frame_callback_surface (compositor, surface);
meta_wayland_compositor_remove_presentation_feedback_surface (compositor,
surface);
g_hash_table_foreach (surface->outputs,
surface_output_disconnect_signals,
surface);
g_hash_table_destroy (surface->outputs);
wl_list_for_each_safe (cb, next,
&surface->unassigned.pending_frame_callback_list,
link)
wl_resource_destroy (cb->resource);
meta_wayland_surface_discard_presentation_feedback (surface);
if (surface->wl_subsurface)
wl_resource_destroy (surface->wl_subsurface);
g_clear_pointer (&surface->subsurface_branch_node, g_node_destroy);
g_hash_table_destroy (surface->shortcut_inhibited_seats);
g_object_unref (surface);
}
MetaWaylandSurface *
meta_wayland_surface_create (MetaWaylandCompositor *compositor,
struct wl_client *client,
struct wl_resource *compositor_resource,
guint32 id)
{
MetaWaylandSurface *surface = g_object_new (META_TYPE_WAYLAND_SURFACE, NULL);
int surface_version;
surface->compositor = compositor;
surface->scale = 1;
surface_version = wl_resource_get_version (compositor_resource);
surface->resource = wl_resource_create (client,
&wl_surface_interface,
surface_version,
id);
wl_resource_set_implementation (surface->resource,
&meta_wayland_wl_surface_interface,
surface,
wl_surface_destructor);
wl_list_init (&surface->unassigned.pending_frame_callback_list);
surface->outputs = g_hash_table_new (NULL, NULL);
surface->shortcut_inhibited_seats = g_hash_table_new (NULL, NULL);
wl_list_init (&surface->presentation_time.feedback_list);
meta_wayland_compositor_notify_surface_id (compositor, id, surface);
return surface;
}
gboolean
meta_wayland_surface_begin_grab_op (MetaWaylandSurface *surface,
MetaWaylandSeat *seat,
MetaGrabOp grab_op,
gfloat x,
gfloat y)
{
MetaWindow *window = meta_wayland_surface_get_window (surface);
if (grab_op == META_GRAB_OP_NONE)
return FALSE;
/* This is an input driven operation so we set frame_action to
constrain it in the same way as it would be if the window was
being moved/resized via a SSD event. */
return meta_display_begin_grab_op (window->display,
window,
grab_op,
TRUE, /* pointer_already_grabbed */
TRUE, /* frame_action */
1, /* button. XXX? */
0, /* modmask */
meta_display_get_current_time_roundtrip (window->display),
x, y);
}
/**
* meta_wayland_shell_init:
* @compositor: The #MetaWaylandCompositor object
*
* Initializes the Wayland interfaces providing features that deal with
* desktop-specific conundrums, like XDG shell, etc.
*/
void
meta_wayland_shell_init (MetaWaylandCompositor *compositor)
{
meta_wayland_xdg_shell_init (compositor);
meta_wayland_init_gtk_shell (compositor);
meta_wayland_init_viewporter (compositor);
}
void
meta_wayland_surface_configure_notify (MetaWaylandSurface *surface,
MetaWaylandWindowConfiguration *configuration)
{
MetaWaylandShellSurface *shell_surface =
META_WAYLAND_SHELL_SURFACE (surface->role);
g_signal_emit (surface, surface_signals[SURFACE_CONFIGURE], 0);
meta_wayland_shell_surface_configure (shell_surface, configuration);
}
void
meta_wayland_surface_ping (MetaWaylandSurface *surface,
guint32 serial)
{
MetaWaylandShellSurface *shell_surface =
META_WAYLAND_SHELL_SURFACE (surface->role);
meta_wayland_shell_surface_ping (shell_surface, serial);
}
void
meta_wayland_surface_delete (MetaWaylandSurface *surface)
{
MetaWaylandShellSurface *shell_surface =
META_WAYLAND_SHELL_SURFACE (surface->role);
meta_wayland_shell_surface_close (shell_surface);
}
void
meta_wayland_surface_window_managed (MetaWaylandSurface *surface,
MetaWindow *window)
{
MetaWaylandShellSurface *shell_surface =
META_WAYLAND_SHELL_SURFACE (surface->role);
meta_wayland_shell_surface_managed (shell_surface, window);
}
void
meta_wayland_surface_drag_dest_focus_in (MetaWaylandSurface *surface,
MetaWaylandDataOffer *offer)
{
MetaWaylandCompositor *compositor = meta_wayland_compositor_get_default ();
MetaWaylandDataDevice *data_device = &compositor->seat->data_device;
surface->dnd.funcs->focus_in (data_device, surface, offer);
}
void
meta_wayland_surface_drag_dest_motion (MetaWaylandSurface *surface,
const ClutterEvent *event)
{
MetaWaylandCompositor *compositor = meta_wayland_compositor_get_default ();
MetaWaylandDataDevice *data_device = &compositor->seat->data_device;
surface->dnd.funcs->motion (data_device, surface, event);
}
void
meta_wayland_surface_drag_dest_focus_out (MetaWaylandSurface *surface)
{
MetaWaylandCompositor *compositor = meta_wayland_compositor_get_default ();
MetaWaylandDataDevice *data_device = &compositor->seat->data_device;
surface->dnd.funcs->focus_out (data_device, surface);
}
void
meta_wayland_surface_drag_dest_drop (MetaWaylandSurface *surface)
{
MetaWaylandCompositor *compositor = meta_wayland_compositor_get_default ();
MetaWaylandDataDevice *data_device = &compositor->seat->data_device;
surface->dnd.funcs->drop (data_device, surface);
}
void
meta_wayland_surface_drag_dest_update (MetaWaylandSurface *surface)
{
MetaWaylandCompositor *compositor = meta_wayland_compositor_get_default ();
MetaWaylandDataDevice *data_device = &compositor->seat->data_device;
surface->dnd.funcs->update (data_device, surface);
}
MetaWaylandSurface *
meta_wayland_surface_get_toplevel (MetaWaylandSurface *surface)
{
if (surface->role)
return meta_wayland_surface_role_get_toplevel (surface->role);
else
return NULL;
}
MetaWindow *
meta_wayland_surface_get_toplevel_window (MetaWaylandSurface *surface)
{
MetaWaylandSurface *toplevel;
toplevel = meta_wayland_surface_get_toplevel (surface);
if (toplevel)
return meta_wayland_surface_get_window (toplevel);
else
return NULL;
}
void
meta_wayland_surface_get_relative_coordinates (MetaWaylandSurface *surface,
float abs_x,
float abs_y,
float *sx,
float *sy)
{
MetaWaylandSurfaceRoleClass *surface_role_class =
META_WAYLAND_SURFACE_ROLE_GET_CLASS (surface->role);
surface_role_class->get_relative_coordinates (surface->role,
abs_x, abs_y,
sx, sy);
}
void
meta_wayland_surface_get_absolute_coordinates (MetaWaylandSurface *surface,
float sx,
float sy,
float *x,
float *y)
{
ClutterActor *actor =
CLUTTER_ACTOR (meta_wayland_surface_get_actor (surface));
graphene_point3d_t sv = {
.x = sx,
.y = sy,
};
graphene_point3d_t v = { 0 };
clutter_actor_apply_relative_transform_to_point (actor, NULL, &sv, &v);
*x = v.x;
*y = v.y;
}
static void
meta_wayland_surface_init (MetaWaylandSurface *surface)
{
surface->pending_state = g_object_new (META_TYPE_WAYLAND_SURFACE_STATE, NULL);
surface->buffer_ref = meta_wayland_buffer_ref_new ();
surface->subsurface_branch_node = g_node_new (surface);
surface->subsurface_leaf_node =
g_node_prepend_data (surface->subsurface_branch_node, surface);
}
static void
meta_wayland_surface_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
MetaWaylandSurface *surface = META_WAYLAND_SURFACE (object);
switch (prop_id)
{
case PROP_SCANOUT_CANDIDATE:
g_value_set_object (value, surface->scanout_candidate);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
meta_wayland_surface_class_init (MetaWaylandSurfaceClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->get_property = meta_wayland_surface_get_property;
obj_props[PROP_SCANOUT_CANDIDATE] =
g_param_spec_object ("scanout-candidate",
"scanout-candidate",
"Scanout candidate for given CRTC",
META_TYPE_CRTC,
G_PARAM_READABLE |
G_PARAM_STATIC_STRINGS);
g_object_class_install_properties (object_class, N_PROPS, obj_props);
surface_signals[SURFACE_DESTROY] =
g_signal_new ("destroy",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
0, NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
surface_signals[SURFACE_UNMAPPED] =
g_signal_new ("unmapped",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
0, NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
surface_signals[SURFACE_CONFIGURE] =
g_signal_new ("configure",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
0, NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
surface_signals[SURFACE_SHORTCUTS_INHIBITED] =
g_signal_new ("shortcuts-inhibited",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
0, NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
surface_signals[SURFACE_SHORTCUTS_RESTORED] =
g_signal_new ("shortcuts-restored",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
0, NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
surface_signals[SURFACE_GEOMETRY_CHANGED] =
g_signal_new ("geometry-changed",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
0, NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
surface_signals[SURFACE_PRE_STATE_APPLIED] =
g_signal_new ("pre-state-applied",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
0, NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
}
static void
meta_wayland_surface_role_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
MetaWaylandSurfaceRole *surface_role = META_WAYLAND_SURFACE_ROLE (object);
MetaWaylandSurfaceRolePrivate *priv =
meta_wayland_surface_role_get_instance_private (surface_role);
switch (prop_id)
{
case SURFACE_ROLE_PROP_SURFACE:
priv->surface = g_value_get_object (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
meta_wayland_surface_role_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
MetaWaylandSurfaceRole *surface_role = META_WAYLAND_SURFACE_ROLE (object);
MetaWaylandSurfaceRolePrivate *priv =
meta_wayland_surface_role_get_instance_private (surface_role);
switch (prop_id)
{
case SURFACE_ROLE_PROP_SURFACE:
g_value_set_object (value, priv->surface);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
meta_wayland_surface_role_init (MetaWaylandSurfaceRole *role)
{
}
static void
meta_wayland_surface_role_class_init (MetaWaylandSurfaceRoleClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->set_property = meta_wayland_surface_role_set_property;
object_class->get_property = meta_wayland_surface_role_get_property;
g_object_class_install_property (object_class,
SURFACE_ROLE_PROP_SURFACE,
g_param_spec_object ("surface",
"MetaWaylandSurface",
"The MetaWaylandSurface instance",
META_TYPE_WAYLAND_SURFACE,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS));
}
static void
meta_wayland_surface_role_assigned (MetaWaylandSurfaceRole *surface_role)
{
META_WAYLAND_SURFACE_ROLE_GET_CLASS (surface_role)->assigned (surface_role);
}
static void
meta_wayland_surface_role_pre_apply_state (MetaWaylandSurfaceRole *surface_role,
MetaWaylandSurfaceState *pending)
{
MetaWaylandSurfaceRoleClass *klass;
klass = META_WAYLAND_SURFACE_ROLE_GET_CLASS (surface_role);
if (klass->pre_apply_state)
klass->pre_apply_state (surface_role, pending);
}
static void
meta_wayland_surface_role_post_apply_state (MetaWaylandSurfaceRole *surface_role,
MetaWaylandSurfaceState *pending)
{
MetaWaylandSurfaceRoleClass *klass;
klass = META_WAYLAND_SURFACE_ROLE_GET_CLASS (surface_role);
if (klass->post_apply_state)
klass->post_apply_state (surface_role, pending);
}
static void
meta_wayland_surface_role_apply_state (MetaWaylandSurfaceRole *surface_role,
MetaWaylandSurfaceState *pending)
{
META_WAYLAND_SURFACE_ROLE_GET_CLASS (surface_role)->apply_state (surface_role,
pending);
}
static gboolean
meta_wayland_surface_role_is_on_logical_monitor (MetaWaylandSurfaceRole *surface_role,
MetaLogicalMonitor *logical_monitor)
{
MetaWaylandSurfaceRoleClass *klass;
klass = META_WAYLAND_SURFACE_ROLE_GET_CLASS (surface_role);
if (klass->is_on_logical_monitor)
return klass->is_on_logical_monitor (surface_role, logical_monitor);
else
return FALSE;
}
static MetaWaylandSurface *
meta_wayland_surface_role_get_toplevel (MetaWaylandSurfaceRole *surface_role)
{
MetaWaylandSurfaceRoleClass *klass;
klass = META_WAYLAND_SURFACE_ROLE_GET_CLASS (surface_role);
if (klass->get_toplevel)
return klass->get_toplevel (surface_role);
else
return NULL;
}
static MetaWindow *
meta_wayland_surface_role_get_window (MetaWaylandSurfaceRole *surface_role)
{
MetaWaylandSurfaceRoleClass *klass;
klass = META_WAYLAND_SURFACE_ROLE_GET_CLASS (surface_role);
if (klass->get_window)
return klass->get_window (surface_role);
else
return NULL;
}
MetaWindow *
meta_wayland_surface_get_window (MetaWaylandSurface *surface)
{
if (!surface->role)
return NULL;
return meta_wayland_surface_role_get_window (surface->role);
}
static gboolean
meta_wayland_surface_role_should_cache_state (MetaWaylandSurfaceRole *surface_role)
{
MetaWaylandSurfaceRoleClass *klass;
klass = META_WAYLAND_SURFACE_ROLE_GET_CLASS (surface_role);
if (klass->should_cache_state)
return klass->should_cache_state (surface_role);
else
return FALSE;
}
gboolean
meta_wayland_surface_should_cache_state (MetaWaylandSurface *surface)
{
if (!surface->role)
return FALSE;
return meta_wayland_surface_role_should_cache_state (surface->role);
}
static void
meta_wayland_surface_role_notify_subsurface_state_changed (MetaWaylandSurfaceRole *surface_role)
{
MetaWaylandSurfaceRoleClass *klass;
klass = META_WAYLAND_SURFACE_ROLE_GET_CLASS (surface_role);
g_return_if_fail (klass->notify_subsurface_state_changed);
klass->notify_subsurface_state_changed (surface_role);
}
void
meta_wayland_surface_notify_subsurface_state_changed (MetaWaylandSurface *surface)
{
if (surface->role)
meta_wayland_surface_role_notify_subsurface_state_changed (surface->role);
}
MetaWaylandSurface *
meta_wayland_surface_role_get_surface (MetaWaylandSurfaceRole *role)
{
MetaWaylandSurfaceRolePrivate *priv =
meta_wayland_surface_role_get_instance_private (role);
return priv->surface;
}
cairo_region_t *
meta_wayland_surface_calculate_input_region (MetaWaylandSurface *surface)
{
cairo_region_t *region;
cairo_rectangle_int_t buffer_rect;
if (!surface->buffer_ref->buffer)
return NULL;
buffer_rect = (cairo_rectangle_int_t) {
.width = meta_wayland_surface_get_width (surface),
.height = meta_wayland_surface_get_height (surface),
};
region = cairo_region_create_rectangle (&buffer_rect);
if (surface->input_region)
cairo_region_intersect (region, surface->input_region);
return region;
}
void
meta_wayland_surface_inhibit_shortcuts (MetaWaylandSurface *surface,
MetaWaylandSeat *seat)
{
g_hash_table_add (surface->shortcut_inhibited_seats, seat);
g_signal_emit (surface, surface_signals[SURFACE_SHORTCUTS_INHIBITED], 0);
}
void
meta_wayland_surface_restore_shortcuts (MetaWaylandSurface *surface,
MetaWaylandSeat *seat)
{
g_signal_emit (surface, surface_signals[SURFACE_SHORTCUTS_RESTORED], 0);
g_hash_table_remove (surface->shortcut_inhibited_seats, seat);
}
gboolean
meta_wayland_surface_is_shortcuts_inhibited (MetaWaylandSurface *surface,
MetaWaylandSeat *seat)
{
if (surface->shortcut_inhibited_seats == NULL)
return FALSE;
return g_hash_table_contains (surface->shortcut_inhibited_seats, seat);
}
CoglTexture *
meta_wayland_surface_get_texture (MetaWaylandSurface *surface)
{
return surface->texture;
}
MetaSurfaceActor *
meta_wayland_surface_get_actor (MetaWaylandSurface *surface)
{
if (!surface->role || !META_IS_WAYLAND_ACTOR_SURFACE (surface->role))
return NULL;
return meta_wayland_actor_surface_get_actor (META_WAYLAND_ACTOR_SURFACE (surface->role));
}
void
meta_wayland_surface_notify_geometry_changed (MetaWaylandSurface *surface)
{
g_signal_emit (surface, surface_signals[SURFACE_GEOMETRY_CHANGED], 0);
}
int
meta_wayland_surface_get_width (MetaWaylandSurface *surface)
{
if (surface->viewport.has_dst_size)
{
return surface->viewport.dst_width;
}
else if (surface->viewport.has_src_rect)
{
return ceilf (surface->viewport.src_rect.size.width);
}
else
{
int width;
if (meta_monitor_transform_is_rotated (surface->buffer_transform))
width = get_buffer_height (surface);
else
width = get_buffer_width (surface);
return width / surface->scale;
}
}
int
meta_wayland_surface_get_height (MetaWaylandSurface *surface)
{
if (surface->viewport.has_dst_size)
{
return surface->viewport.dst_height;
}
else if (surface->viewport.has_src_rect)
{
return ceilf (surface->viewport.src_rect.size.height);
}
else
{
int height;
if (meta_monitor_transform_is_rotated (surface->buffer_transform))
height = get_buffer_width (surface);
else
height = get_buffer_height (surface);
return height / surface->scale;
}
}
static void
scanout_destroyed (gpointer data,
GObject *where_the_object_was)
{
MetaWaylandBufferRef *buffer_ref = data;
meta_wayland_buffer_ref_dec_use_count (buffer_ref);
meta_wayland_buffer_ref_unref (buffer_ref);
}
CoglScanout *
meta_wayland_surface_try_acquire_scanout (MetaWaylandSurface *surface,
CoglOnscreen *onscreen)
{
CoglScanout *scanout;
MetaWaylandBufferRef *buffer_ref;
if (!surface->buffer_ref->buffer)
return NULL;
if (surface->buffer_ref->use_count == 0)
return NULL;
scanout = meta_wayland_buffer_try_acquire_scanout (surface->buffer_ref->buffer,
onscreen);
if (!scanout)
return NULL;
buffer_ref = meta_wayland_buffer_ref_ref (surface->buffer_ref);
meta_wayland_buffer_ref_inc_use_count (buffer_ref);
g_object_weak_ref (G_OBJECT (scanout), scanout_destroyed, buffer_ref);
return scanout;
}
MetaCrtc *
meta_wayland_surface_get_scanout_candidate (MetaWaylandSurface *surface)
{
return surface->scanout_candidate;
}
void
meta_wayland_surface_set_scanout_candidate (MetaWaylandSurface *surface,
MetaCrtc *crtc)
{
if (surface->scanout_candidate == crtc)
return;
g_set_object (&surface->scanout_candidate, crtc);
g_object_notify_by_pspec (G_OBJECT (surface),
obj_props[PROP_SCANOUT_CANDIDATE]);
}
gboolean
meta_wayland_surface_can_scanout_untransformed (MetaWaylandSurface *surface,
MetaRendererView *view,
int geometry_scale)
{
if (meta_renderer_view_get_transform (view) != surface->buffer_transform)
return FALSE;
if (surface->viewport.has_dst_size)
{
MetaRectangle view_layout;
float view_scale;
clutter_stage_view_get_layout (CLUTTER_STAGE_VIEW (view), &view_layout);
view_scale = clutter_stage_view_get_scale (CLUTTER_STAGE_VIEW (view));
if (!G_APPROX_VALUE (view_layout.width, surface->viewport.dst_width,
FLT_EPSILON) ||
!G_APPROX_VALUE (view_layout.height, surface->viewport.dst_height,
FLT_EPSILON) ||
!G_APPROX_VALUE (view_layout.width * view_scale,
get_buffer_width (surface),
FLT_EPSILON) ||
!G_APPROX_VALUE (view_layout.height * view_scale,
get_buffer_height (surface),
FLT_EPSILON))
return FALSE;
}
else
{
if (meta_is_stage_views_scaled ())
{
float view_scale;
view_scale = clutter_stage_view_get_scale (CLUTTER_STAGE_VIEW (view));
if (!G_APPROX_VALUE (view_scale, surface->scale, FLT_EPSILON))
return FALSE;
}
else
{
if (geometry_scale != surface->scale)
return FALSE;
}
}
if (surface->viewport.has_src_rect)
{
if (!G_APPROX_VALUE (surface->viewport.src_rect.origin.x, 0.0,
FLT_EPSILON) ||
!G_APPROX_VALUE (surface->viewport.src_rect.origin.y, 0.0,
FLT_EPSILON) ||
!G_APPROX_VALUE (surface->viewport.src_rect.size.width *
surface->scale,
get_buffer_width (surface),
FLT_EPSILON) ||
!G_APPROX_VALUE (surface->viewport.src_rect.size.height *
surface->scale,
get_buffer_height (surface),
FLT_EPSILON))
return FALSE;
}
return TRUE;
}
int
meta_wayland_surface_get_geometry_scale (MetaWaylandSurface *surface)
{
MetaWaylandActorSurface *actor_surface;
g_return_val_if_fail (META_IS_WAYLAND_ACTOR_SURFACE (surface->role), 1);
actor_surface = META_WAYLAND_ACTOR_SURFACE (surface->role);
return meta_wayland_actor_surface_get_geometry_scale (actor_surface);
}
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