5849275b76
Move into a standalone meta-wayland-surface-role-cursor.[ch], and make generic enough to work for pointe and additional (eg. tablet) cursors. Most notably, the sprite is now kept completely internal to the cursor role, and updates are routed through the given MetaCursorRenderer (which may be the default one for the pointer, or something else). The way cursor updates after cursor surface destruction has also been reworked, the pointer will just keep track of the last cursor surface, so older surfaces being destroyed don't trigger pointer rechecks/updates.
281 lines
9.2 KiB
C
281 lines
9.2 KiB
C
/*
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* Wayland Support
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*
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* Copyright (C) 2015 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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#include "config.h"
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#include <cogl/cogl.h>
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#include <cogl/cogl-wayland-server.h>
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#include "meta-wayland-surface-role-cursor.h"
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#include "meta-wayland-buffer.h"
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#include "meta-xwayland.h"
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#include "screen-private.h"
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struct _MetaWaylandSurfaceRoleCursor
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{
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MetaWaylandSurfaceRole parent;
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int hot_x;
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int hot_y;
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MetaCursorSprite *cursor_sprite;
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MetaCursorRenderer *cursor_renderer;
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MetaWaylandBuffer *buffer;
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};
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G_DEFINE_TYPE (MetaWaylandSurfaceRoleCursor,
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meta_wayland_surface_role_cursor,
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META_TYPE_WAYLAND_SURFACE_ROLE)
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static void
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update_cursor_sprite_texture (MetaWaylandSurfaceRoleCursor *cursor_role)
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{
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MetaWaylandSurface *surface = meta_wayland_surface_role_get_surface (META_WAYLAND_SURFACE_ROLE (cursor_role));
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MetaWaylandBuffer *buffer = meta_wayland_surface_get_buffer (surface);
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MetaCursorSprite *cursor_sprite = cursor_role->cursor_sprite;
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g_return_if_fail (!buffer || buffer->texture);
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if (!cursor_role->cursor_renderer || !cursor_sprite)
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return;
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if (buffer)
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{
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meta_cursor_sprite_set_texture (cursor_sprite,
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buffer->texture,
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cursor_role->hot_x * surface->scale,
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cursor_role->hot_y * surface->scale);
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if (cursor_role->buffer)
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{
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struct wl_resource *buffer_resource;
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g_assert (cursor_role->buffer == buffer);
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buffer_resource = buffer->resource;
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meta_cursor_renderer_realize_cursor_from_wl_buffer (cursor_role->cursor_renderer,
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cursor_sprite,
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buffer_resource);
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meta_wayland_surface_unref_buffer_use_count (surface);
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g_clear_object (&cursor_role->buffer);
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}
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}
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else
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{
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meta_cursor_sprite_set_texture (cursor_sprite, NULL, 0, 0);
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}
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meta_cursor_renderer_force_update (cursor_role->cursor_renderer);
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}
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static void
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cursor_sprite_prepare_at (MetaCursorSprite *cursor_sprite,
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int x,
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int y,
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MetaWaylandSurfaceRoleCursor *cursor_role)
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{
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MetaWaylandSurfaceRole *role = META_WAYLAND_SURFACE_ROLE (cursor_role);
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MetaWaylandSurface *surface = meta_wayland_surface_role_get_surface (role);
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MetaDisplay *display = meta_get_display ();
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MetaScreen *screen = display->screen;
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const MetaMonitorInfo *monitor;
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if (!meta_xwayland_is_xwayland_surface (surface))
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{
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monitor = meta_screen_get_monitor_for_point (screen, x, y);
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if (monitor)
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meta_cursor_sprite_set_texture_scale (cursor_sprite,
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(float) monitor->scale / surface->scale);
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}
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meta_wayland_surface_update_outputs (surface);
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}
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static void
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cursor_surface_role_assigned (MetaWaylandSurfaceRole *surface_role)
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{
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MetaWaylandSurfaceRoleCursor *cursor_role =
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META_WAYLAND_SURFACE_ROLE_CURSOR (surface_role);
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MetaWaylandSurface *surface =
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meta_wayland_surface_role_get_surface (surface_role);
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MetaWaylandBuffer *buffer = meta_wayland_surface_get_buffer (surface);
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if (buffer)
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{
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g_set_object (&cursor_role->buffer, buffer);
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meta_wayland_surface_ref_buffer_use_count (surface);
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}
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meta_wayland_surface_queue_pending_frame_callbacks (surface);
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}
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static void
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cursor_surface_role_pre_commit (MetaWaylandSurfaceRole *surface_role,
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MetaWaylandPendingState *pending)
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{
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MetaWaylandSurfaceRoleCursor *cursor_role =
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META_WAYLAND_SURFACE_ROLE_CURSOR (surface_role);
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MetaWaylandSurface *surface =
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meta_wayland_surface_role_get_surface (surface_role);
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if (pending->newly_attached && cursor_role->buffer)
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{
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meta_wayland_surface_unref_buffer_use_count (surface);
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g_clear_object (&cursor_role->buffer);
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}
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}
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static void
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cursor_surface_role_commit (MetaWaylandSurfaceRole *surface_role,
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MetaWaylandPendingState *pending)
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{
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MetaWaylandSurfaceRoleCursor *cursor_role =
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META_WAYLAND_SURFACE_ROLE_CURSOR (surface_role);
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MetaWaylandSurface *surface =
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meta_wayland_surface_role_get_surface (surface_role);
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MetaWaylandBuffer *buffer = meta_wayland_surface_get_buffer (surface);
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if (pending->newly_attached)
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{
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g_set_object (&cursor_role->buffer, buffer);
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if (cursor_role->buffer)
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meta_wayland_surface_ref_buffer_use_count (surface);
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}
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meta_wayland_surface_queue_pending_state_frame_callbacks (surface, pending);
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if (pending->newly_attached)
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update_cursor_sprite_texture (META_WAYLAND_SURFACE_ROLE_CURSOR (surface_role));
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}
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static gboolean
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cursor_surface_role_is_on_output (MetaWaylandSurfaceRole *role,
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MetaMonitorInfo *monitor)
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{
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MetaWaylandSurface *surface =
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meta_wayland_surface_role_get_surface (role);
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MetaWaylandSurfaceRoleCursor *cursor_role =
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META_WAYLAND_SURFACE_ROLE_CURSOR (surface->role);
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MetaRectangle rect;
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rect = meta_cursor_renderer_calculate_rect (cursor_role->cursor_renderer,
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cursor_role->cursor_sprite);
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return meta_rectangle_overlap (&rect, &monitor->rect);
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}
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static void
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cursor_surface_role_dispose (GObject *object)
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{
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MetaWaylandSurfaceRoleCursor *cursor_role =
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META_WAYLAND_SURFACE_ROLE_CURSOR (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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g_signal_handlers_disconnect_by_func (cursor_role->cursor_sprite,
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cursor_sprite_prepare_at, cursor_role);
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g_clear_object (&cursor_role->cursor_renderer);
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g_clear_object (&cursor_role->cursor_sprite);
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if (cursor_role->buffer)
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{
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meta_wayland_surface_unref_buffer_use_count (surface);
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g_clear_object (&cursor_role->buffer);
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}
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G_OBJECT_CLASS (meta_wayland_surface_role_cursor_parent_class)->dispose (object);
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}
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static void
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meta_wayland_surface_role_cursor_init (MetaWaylandSurfaceRoleCursor *role)
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{
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role->cursor_sprite = meta_cursor_sprite_new ();
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g_signal_connect_object (role->cursor_sprite,
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"prepare-at",
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G_CALLBACK (cursor_sprite_prepare_at),
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role,
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0);
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}
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static void
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meta_wayland_surface_role_cursor_class_init (MetaWaylandSurfaceRoleCursorClass *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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surface_role_class->assigned = cursor_surface_role_assigned;
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surface_role_class->pre_commit = cursor_surface_role_pre_commit;
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surface_role_class->commit = cursor_surface_role_commit;
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surface_role_class->is_on_output = cursor_surface_role_is_on_output;
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object_class->dispose = cursor_surface_role_dispose;
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}
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MetaCursorSprite *
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meta_wayland_surface_role_cursor_get_sprite (MetaWaylandSurfaceRoleCursor *cursor_role)
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{
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return cursor_role->cursor_sprite;
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}
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void
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meta_wayland_surface_role_cursor_set_hotspot (MetaWaylandSurfaceRoleCursor *cursor_role,
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gint hotspot_x,
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gint hotspot_y)
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{
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if (cursor_role->hot_x == hotspot_x &&
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cursor_role->hot_y == hotspot_y)
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return;
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cursor_role->hot_x = hotspot_x;
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cursor_role->hot_y = hotspot_y;
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update_cursor_sprite_texture (cursor_role);
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}
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void
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meta_wayland_surface_role_cursor_get_hotspot (MetaWaylandSurfaceRoleCursor *cursor_role,
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gint *hotspot_x,
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gint *hotspot_y)
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{
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if (hotspot_x)
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*hotspot_x = cursor_role->hot_x;
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if (hotspot_y)
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*hotspot_y = cursor_role->hot_y;
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}
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void
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meta_wayland_surface_role_cursor_set_renderer (MetaWaylandSurfaceRoleCursor *cursor_role,
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MetaCursorRenderer *renderer)
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{
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if (cursor_role->cursor_renderer == renderer)
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return;
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if (renderer)
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g_object_ref (renderer);
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if (cursor_role->cursor_renderer)
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g_object_unref (cursor_role->cursor_renderer);
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cursor_role->cursor_renderer = renderer;
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update_cursor_sprite_texture (cursor_role);
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}
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MetaCursorRenderer *
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meta_wayland_surface_role_cursor_get_renderer (MetaWaylandSurfaceRoleCursor *cursor_role)
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{
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return cursor_role->cursor_renderer;
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}
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