mutter/src/backends/meta-cursor.h
Carlos Garnacho eda7588190 backends: Replace MetaCursorSprite::prepare-at with in-place function
Since this signal is in a hot path during input handling, it makes sense
not to have this be a signal at all, currently most of the time spent in
it is in GLib signal machinery itself.

Replace it with a function/user data pair that are set on the sprite
itself. Only the places that create an sprite are interested in hooking
one ::prepare-at behavior per sprite, so we can do with a single pair.

This makes meta_cursor_sprite_prepare_at() inexpensive enough.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1915>
2021-12-07 20:04:08 +00:00

98 lines
3.8 KiB
C

/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* Copyright 2013 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, see <http://www.gnu.org/licenses/>.
*
* Author: Giovanni Campagna <gcampagn@redhat.com>
*/
#ifndef META_CURSOR_H
#define META_CURSOR_H
#include "backends/meta-backend-types.h"
#include "meta/common.h"
#include "meta/boxes.h"
#define META_TYPE_CURSOR_SPRITE (meta_cursor_sprite_get_type ())
G_DECLARE_DERIVABLE_TYPE (MetaCursorSprite,
meta_cursor_sprite,
META, CURSOR_SPRITE,
GObject)
struct _MetaCursorSpriteClass
{
GObjectClass parent_class;
void (* invalidate) (MetaCursorSprite *sprite);
gboolean (* realize_texture) (MetaCursorSprite *sprite);
gboolean (* is_animated) (MetaCursorSprite *sprite);
void (* tick_frame) (MetaCursorSprite *sprite);
unsigned int (* get_current_frame_time) (MetaCursorSprite *sprite);
};
typedef void (* MetaCursorPrepareFunc) (MetaCursorSprite *sprite,
float scale,
int x,
int y,
gpointer user_data);
void meta_cursor_sprite_set_prepare_func (MetaCursorSprite *sprite,
MetaCursorPrepareFunc func,
gpointer user_data);
void meta_cursor_sprite_prepare_at (MetaCursorSprite *sprite,
float best_scale,
int x,
int y);
void meta_cursor_sprite_invalidate (MetaCursorSprite *sprite);
gboolean meta_cursor_sprite_realize_texture (MetaCursorSprite *sprite);
void meta_cursor_sprite_clear_texture (MetaCursorSprite *sprite);
void meta_cursor_sprite_set_texture (MetaCursorSprite *sprite,
CoglTexture *texture,
int hot_x,
int hot_y);
void meta_cursor_sprite_set_texture_scale (MetaCursorSprite *sprite,
float scale);
void meta_cursor_sprite_set_texture_transform (MetaCursorSprite *sprite,
MetaMonitorTransform transform);
CoglTexture *meta_cursor_sprite_get_cogl_texture (MetaCursorSprite *sprite);
void meta_cursor_sprite_get_hotspot (MetaCursorSprite *sprite,
int *hot_x,
int *hot_y);
int meta_cursor_sprite_get_width (MetaCursorSprite *sprite);
int meta_cursor_sprite_get_height (MetaCursorSprite *sprite);
float meta_cursor_sprite_get_texture_scale (MetaCursorSprite *sprite);
MetaMonitorTransform meta_cursor_sprite_get_texture_transform (MetaCursorSprite *sprite);
gboolean meta_cursor_sprite_is_animated (MetaCursorSprite *sprite);
void meta_cursor_sprite_tick_frame (MetaCursorSprite *sprite);
unsigned int meta_cursor_sprite_get_current_frame_time (MetaCursorSprite *sprite);
#endif /* META_CURSOR_H */