source: mainline/uspace/srv/hid/display/cursor.h

Last change on this file was 62018a0, checked in by Jiri Svoboda <jiri@…>, 5 years ago

Properly clip cursor when repainting a part of the display

Not doing so was causing excessively large update rectangles, increasing
CPU usage and display artifacts.

  • Property mode set to 100644
File size: 2.0 KB
RevLine 
[4d8002d]1/*
2 * Copyright (c) 2020 Jiri Svoboda
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/** @addtogroup display
30 * @{
31 */
32/**
33 * @file Display server cursor
34 */
35
36#ifndef CURSOR_H
37#define CURSOR_H
38
39#include <errno.h>
40#include <types/gfx/coord.h>
41#include <stdint.h>
42#include "types/display/display.h"
43#include "types/display/cursor.h"
44
45extern errno_t ds_cursor_create(ds_display_t *, gfx_rect_t *, const uint8_t *,
46 ds_cursor_t **);
47extern void ds_cursor_destroy(ds_cursor_t *);
[62018a0]48extern errno_t ds_cursor_paint(ds_cursor_t *, gfx_coord2_t *, gfx_rect_t *);
[4d8002d]49extern void ds_cursor_get_rect(ds_cursor_t *, gfx_coord2_t *, gfx_rect_t *);
50
51#endif
52
53/** @}
54 */
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