197401fbf8
To be able to render the pointer cursor sprite at sub-(logical)-pixel positions, track the pointer position using floats instead of ints. This also requires users of the cursor sprite rect to deal with floating points, when e.g. finding the logical monitor etc. https://bugzilla.gnome.org/show_bug.cgi?id=765011
390 lines
13 KiB
C
390 lines
13 KiB
C
/*
|
|
* Wayland Support
|
|
*
|
|
* Copyright (C) 2015 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 <cogl/cogl.h>
|
|
#include <cogl/cogl-wayland-server.h>
|
|
#include "meta-wayland-surface-role-cursor.h"
|
|
#include "meta-wayland-buffer.h"
|
|
#include "meta-xwayland.h"
|
|
#include "screen-private.h"
|
|
#include "meta-wayland-private.h"
|
|
#include "backends/meta-backend-private.h"
|
|
#include "backends/meta-logical-monitor.h"
|
|
#include "core/boxes-private.h"
|
|
|
|
typedef struct _MetaWaylandSurfaceRoleCursorPrivate MetaWaylandSurfaceRoleCursorPrivate;
|
|
|
|
struct _MetaWaylandSurfaceRoleCursorPrivate
|
|
{
|
|
int hot_x;
|
|
int hot_y;
|
|
MetaCursorSprite *cursor_sprite;
|
|
MetaCursorRenderer *cursor_renderer;
|
|
MetaWaylandBuffer *buffer;
|
|
struct wl_list frame_callbacks;
|
|
gulong cursor_painted_handler_id;
|
|
};
|
|
|
|
G_DEFINE_TYPE_WITH_PRIVATE (MetaWaylandSurfaceRoleCursor,
|
|
meta_wayland_surface_role_cursor,
|
|
META_TYPE_WAYLAND_SURFACE_ROLE)
|
|
|
|
static void
|
|
update_cursor_sprite_texture (MetaWaylandSurfaceRoleCursor *cursor_role)
|
|
{
|
|
MetaWaylandSurfaceRoleCursorPrivate *priv = meta_wayland_surface_role_cursor_get_instance_private (cursor_role);
|
|
MetaWaylandSurface *surface = meta_wayland_surface_role_get_surface (META_WAYLAND_SURFACE_ROLE (cursor_role));
|
|
MetaWaylandBuffer *buffer = meta_wayland_surface_get_buffer (surface);
|
|
MetaCursorSprite *cursor_sprite = priv->cursor_sprite;
|
|
|
|
g_return_if_fail (!buffer || buffer->texture);
|
|
|
|
if (!priv->cursor_renderer || !cursor_sprite)
|
|
return;
|
|
|
|
if (buffer)
|
|
{
|
|
meta_cursor_sprite_set_texture (cursor_sprite,
|
|
buffer->texture,
|
|
priv->hot_x * surface->scale,
|
|
priv->hot_y * surface->scale);
|
|
|
|
if (priv->buffer)
|
|
{
|
|
struct wl_resource *buffer_resource;
|
|
|
|
g_assert (priv->buffer == buffer);
|
|
buffer_resource = buffer->resource;
|
|
meta_cursor_renderer_realize_cursor_from_wl_buffer (priv->cursor_renderer,
|
|
cursor_sprite,
|
|
buffer_resource);
|
|
|
|
meta_wayland_surface_unref_buffer_use_count (surface);
|
|
g_clear_object (&priv->buffer);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
meta_cursor_sprite_set_texture (cursor_sprite, NULL, 0, 0);
|
|
}
|
|
|
|
meta_cursor_renderer_force_update (priv->cursor_renderer);
|
|
}
|
|
|
|
static void
|
|
cursor_sprite_prepare_at (MetaCursorSprite *cursor_sprite,
|
|
int x,
|
|
int y,
|
|
MetaWaylandSurfaceRoleCursor *cursor_role)
|
|
{
|
|
MetaWaylandSurfaceRole *role = META_WAYLAND_SURFACE_ROLE (cursor_role);
|
|
MetaWaylandSurface *surface = meta_wayland_surface_role_get_surface (role);
|
|
|
|
if (!meta_xwayland_is_xwayland_surface (surface))
|
|
{
|
|
MetaBackend *backend = meta_get_backend ();
|
|
MetaMonitorManager *monitor_manager =
|
|
meta_backend_get_monitor_manager (backend);
|
|
MetaLogicalMonitor *logical_monitor;
|
|
|
|
logical_monitor =
|
|
meta_monitor_manager_get_logical_monitor_at (monitor_manager, x, y);
|
|
if (logical_monitor)
|
|
{
|
|
float texture_scale;
|
|
|
|
if (meta_is_stage_views_scaled ())
|
|
texture_scale = 1.0 / surface->scale;
|
|
else
|
|
texture_scale = (meta_logical_monitor_get_scale (logical_monitor) /
|
|
surface->scale);
|
|
|
|
meta_cursor_sprite_set_texture_scale (cursor_sprite, texture_scale);
|
|
}
|
|
}
|
|
meta_wayland_surface_update_outputs (surface);
|
|
}
|
|
|
|
static void
|
|
cursor_surface_role_assigned (MetaWaylandSurfaceRole *surface_role)
|
|
{
|
|
MetaWaylandSurface *surface =
|
|
meta_wayland_surface_role_get_surface (surface_role);
|
|
MetaWaylandSurfaceRoleCursor *cursor_role =
|
|
META_WAYLAND_SURFACE_ROLE_CURSOR (surface_role);
|
|
MetaWaylandSurfaceRoleCursorPrivate *priv =
|
|
meta_wayland_surface_role_cursor_get_instance_private (cursor_role);
|
|
|
|
wl_list_insert_list (&priv->frame_callbacks,
|
|
&surface->pending_frame_callback_list);
|
|
wl_list_init (&surface->pending_frame_callback_list);
|
|
}
|
|
|
|
static void
|
|
cursor_surface_role_pre_commit (MetaWaylandSurfaceRole *surface_role,
|
|
MetaWaylandPendingState *pending)
|
|
{
|
|
MetaWaylandSurfaceRoleCursor *cursor_role =
|
|
META_WAYLAND_SURFACE_ROLE_CURSOR (surface_role);
|
|
MetaWaylandSurfaceRoleCursorPrivate *priv =
|
|
meta_wayland_surface_role_cursor_get_instance_private (cursor_role);
|
|
MetaWaylandSurface *surface =
|
|
meta_wayland_surface_role_get_surface (surface_role);
|
|
|
|
if (pending->newly_attached && priv->buffer)
|
|
{
|
|
meta_wayland_surface_unref_buffer_use_count (surface);
|
|
g_clear_object (&priv->buffer);
|
|
}
|
|
}
|
|
|
|
static void
|
|
cursor_surface_role_commit (MetaWaylandSurfaceRole *surface_role,
|
|
MetaWaylandPendingState *pending)
|
|
{
|
|
MetaWaylandSurfaceRoleCursor *cursor_role =
|
|
META_WAYLAND_SURFACE_ROLE_CURSOR (surface_role);
|
|
MetaWaylandSurfaceRoleCursorPrivate *priv =
|
|
meta_wayland_surface_role_cursor_get_instance_private (cursor_role);
|
|
MetaWaylandSurface *surface =
|
|
meta_wayland_surface_role_get_surface (surface_role);
|
|
MetaWaylandBuffer *buffer = meta_wayland_surface_get_buffer (surface);
|
|
|
|
if (pending->newly_attached)
|
|
{
|
|
g_set_object (&priv->buffer, buffer);
|
|
if (priv->buffer)
|
|
meta_wayland_surface_ref_buffer_use_count (surface);
|
|
}
|
|
|
|
wl_list_insert_list (&priv->frame_callbacks,
|
|
&pending->frame_callback_list);
|
|
wl_list_init (&pending->frame_callback_list);
|
|
|
|
if (pending->newly_attached)
|
|
update_cursor_sprite_texture (META_WAYLAND_SURFACE_ROLE_CURSOR (surface_role));
|
|
}
|
|
|
|
static gboolean
|
|
cursor_surface_role_is_on_logical_monitor (MetaWaylandSurfaceRole *role,
|
|
MetaLogicalMonitor *logical_monitor)
|
|
{
|
|
MetaWaylandSurface *surface =
|
|
meta_wayland_surface_role_get_surface (role);
|
|
MetaWaylandSurfaceRoleCursor *cursor_role =
|
|
META_WAYLAND_SURFACE_ROLE_CURSOR (surface->role);
|
|
MetaWaylandSurfaceRoleCursorPrivate *priv =
|
|
meta_wayland_surface_role_cursor_get_instance_private (cursor_role);
|
|
ClutterRect rect;
|
|
ClutterRect logical_monitor_rect;
|
|
|
|
rect = meta_cursor_renderer_calculate_rect (priv->cursor_renderer,
|
|
priv->cursor_sprite);
|
|
logical_monitor_rect =
|
|
meta_rectangle_to_clutter_rect (&logical_monitor->rect);
|
|
return clutter_rect_intersection (&rect, &logical_monitor_rect, NULL);
|
|
}
|
|
|
|
static void
|
|
cursor_surface_role_dispose (GObject *object)
|
|
{
|
|
MetaWaylandSurfaceRoleCursor *cursor_role =
|
|
META_WAYLAND_SURFACE_ROLE_CURSOR (object);
|
|
MetaWaylandSurfaceRoleCursorPrivate *priv =
|
|
meta_wayland_surface_role_cursor_get_instance_private (cursor_role);
|
|
MetaWaylandSurface *surface =
|
|
meta_wayland_surface_role_get_surface (META_WAYLAND_SURFACE_ROLE (object));
|
|
MetaWaylandFrameCallback *cb, *next;
|
|
|
|
wl_list_for_each_safe (cb, next, &priv->frame_callbacks, link)
|
|
wl_resource_destroy (cb->resource);
|
|
|
|
g_signal_handlers_disconnect_by_func (priv->cursor_sprite,
|
|
cursor_sprite_prepare_at, cursor_role);
|
|
|
|
g_clear_object (&priv->cursor_renderer);
|
|
g_clear_object (&priv->cursor_sprite);
|
|
|
|
if (priv->buffer)
|
|
{
|
|
meta_wayland_surface_unref_buffer_use_count (surface);
|
|
g_clear_object (&priv->buffer);
|
|
}
|
|
|
|
G_OBJECT_CLASS (meta_wayland_surface_role_cursor_parent_class)->dispose (object);
|
|
}
|
|
|
|
static void
|
|
cursor_surface_role_constructed (GObject *object)
|
|
{
|
|
MetaWaylandSurfaceRoleCursor *cursor_role =
|
|
META_WAYLAND_SURFACE_ROLE_CURSOR (object);
|
|
MetaWaylandSurfaceRoleCursorPrivate *priv =
|
|
meta_wayland_surface_role_cursor_get_instance_private (cursor_role);
|
|
MetaWaylandSurfaceRole *surface_role =
|
|
META_WAYLAND_SURFACE_ROLE (cursor_role);
|
|
MetaWaylandSurface *surface =
|
|
meta_wayland_surface_role_get_surface (surface_role);
|
|
MetaWaylandBuffer *buffer;
|
|
|
|
buffer = meta_wayland_surface_get_buffer (surface);
|
|
|
|
g_warn_if_fail (!buffer || buffer->resource);
|
|
|
|
if (buffer && buffer->resource)
|
|
{
|
|
g_set_object (&priv->buffer, buffer);
|
|
meta_wayland_surface_ref_buffer_use_count (surface);
|
|
}
|
|
}
|
|
|
|
static void
|
|
meta_wayland_surface_role_cursor_init (MetaWaylandSurfaceRoleCursor *role)
|
|
{
|
|
MetaWaylandSurfaceRoleCursorPrivate *priv =
|
|
meta_wayland_surface_role_cursor_get_instance_private (role);
|
|
|
|
priv->cursor_sprite = meta_cursor_sprite_new ();
|
|
g_signal_connect_object (priv->cursor_sprite,
|
|
"prepare-at",
|
|
G_CALLBACK (cursor_sprite_prepare_at),
|
|
role,
|
|
0);
|
|
wl_list_init (&priv->frame_callbacks);
|
|
}
|
|
|
|
static void
|
|
meta_wayland_surface_role_cursor_class_init (MetaWaylandSurfaceRoleCursorClass *klass)
|
|
{
|
|
MetaWaylandSurfaceRoleClass *surface_role_class =
|
|
META_WAYLAND_SURFACE_ROLE_CLASS (klass);
|
|
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
|
|
|
surface_role_class->assigned = cursor_surface_role_assigned;
|
|
surface_role_class->pre_commit = cursor_surface_role_pre_commit;
|
|
surface_role_class->commit = cursor_surface_role_commit;
|
|
surface_role_class->is_on_logical_monitor = cursor_surface_role_is_on_logical_monitor;
|
|
|
|
object_class->constructed = cursor_surface_role_constructed;
|
|
object_class->dispose = cursor_surface_role_dispose;
|
|
}
|
|
|
|
MetaCursorSprite *
|
|
meta_wayland_surface_role_cursor_get_sprite (MetaWaylandSurfaceRoleCursor *cursor_role)
|
|
{
|
|
MetaWaylandSurfaceRoleCursorPrivate *priv =
|
|
meta_wayland_surface_role_cursor_get_instance_private (cursor_role);
|
|
|
|
return priv->cursor_sprite;
|
|
}
|
|
|
|
void
|
|
meta_wayland_surface_role_cursor_set_hotspot (MetaWaylandSurfaceRoleCursor *cursor_role,
|
|
gint hotspot_x,
|
|
gint hotspot_y)
|
|
{
|
|
MetaWaylandSurfaceRoleCursorPrivate *priv =
|
|
meta_wayland_surface_role_cursor_get_instance_private (cursor_role);
|
|
|
|
if (priv->hot_x == hotspot_x &&
|
|
priv->hot_y == hotspot_y)
|
|
return;
|
|
|
|
priv->hot_x = hotspot_x;
|
|
priv->hot_y = hotspot_y;
|
|
update_cursor_sprite_texture (cursor_role);
|
|
}
|
|
|
|
void
|
|
meta_wayland_surface_role_cursor_get_hotspot (MetaWaylandSurfaceRoleCursor *cursor_role,
|
|
gint *hotspot_x,
|
|
gint *hotspot_y)
|
|
{
|
|
MetaWaylandSurfaceRoleCursorPrivate *priv =
|
|
meta_wayland_surface_role_cursor_get_instance_private (cursor_role);
|
|
|
|
if (hotspot_x)
|
|
*hotspot_x = priv->hot_x;
|
|
if (hotspot_y)
|
|
*hotspot_y = priv->hot_y;
|
|
}
|
|
|
|
static void
|
|
on_cursor_painted (MetaCursorRenderer *renderer,
|
|
MetaCursorSprite *displayed_sprite,
|
|
MetaWaylandSurfaceRoleCursor *cursor_role)
|
|
{
|
|
MetaWaylandSurfaceRoleCursorPrivate *priv =
|
|
meta_wayland_surface_role_cursor_get_instance_private (cursor_role);
|
|
guint32 time = (guint32) (g_get_monotonic_time () / 1000);
|
|
|
|
if (displayed_sprite != priv->cursor_sprite)
|
|
return;
|
|
|
|
while (!wl_list_empty (&priv->frame_callbacks))
|
|
{
|
|
MetaWaylandFrameCallback *callback =
|
|
wl_container_of (priv->frame_callbacks.next, callback, link);
|
|
|
|
wl_callback_send_done (callback->resource, time);
|
|
wl_resource_destroy (callback->resource);
|
|
}
|
|
}
|
|
|
|
void
|
|
meta_wayland_surface_role_cursor_set_renderer (MetaWaylandSurfaceRoleCursor *cursor_role,
|
|
MetaCursorRenderer *renderer)
|
|
{
|
|
MetaWaylandSurfaceRoleCursorPrivate *priv =
|
|
meta_wayland_surface_role_cursor_get_instance_private (cursor_role);
|
|
|
|
if (priv->cursor_renderer == renderer)
|
|
return;
|
|
|
|
if (priv->cursor_renderer)
|
|
{
|
|
g_signal_handler_disconnect (priv->cursor_renderer,
|
|
priv->cursor_painted_handler_id);
|
|
priv->cursor_painted_handler_id = 0;
|
|
g_object_unref (priv->cursor_renderer);
|
|
}
|
|
if (renderer)
|
|
{
|
|
priv->cursor_painted_handler_id =
|
|
g_signal_connect_object (renderer, "cursor-painted",
|
|
G_CALLBACK (on_cursor_painted), cursor_role, 0);
|
|
g_object_ref (renderer);
|
|
}
|
|
|
|
priv->cursor_renderer = renderer;
|
|
update_cursor_sprite_texture (cursor_role);
|
|
}
|
|
|
|
MetaCursorRenderer *
|
|
meta_wayland_surface_role_cursor_get_renderer (MetaWaylandSurfaceRoleCursor *cursor_role)
|
|
{
|
|
MetaWaylandSurfaceRoleCursorPrivate *priv =
|
|
meta_wayland_surface_role_cursor_get_instance_private (cursor_role);
|
|
|
|
return priv->cursor_renderer;
|
|
}
|