source: mainline/uspace/srv/hid/display/display.h@ 7470d97

serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 7470d97 was 8aef01c, checked in by Jiri Svoboda <jiri@…>, 5 years ago

Configurable display double-buffering

On by default (since turning off creates flicker in the absence of
front-to-back rendering). This is the quick and dirty way: display
server renders locally to a bitmap (using mem GC) and renders the
bitmap when ready.

The more sophisticated way would be to implement buffering in the
display device. That would require, however, enhancing the protocols
to communicate frame boundaries.

  • Property mode set to 100644
File size: 3.8 KB
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1/*
2 * Copyright (c) 2019 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 display
34 */
35
36#ifndef DISPLAY_H
37#define DISPLAY_H
38
39#include <display/info.h>
40#include <errno.h>
41#include <gfx/context.h>
42#include <gfx/coord.h>
43#include <io/kbd_event.h>
44#include "types/display/client.h"
45#include "types/display/cursor.h"
46#include "types/display/ddev.h"
47#include "types/display/display.h"
48#include "types/display/ptd_event.h"
49#include "types/display/seat.h"
50
51extern errno_t ds_display_create(gfx_context_t *, ds_display_flags_t,
52 ds_display_t **);
53extern void ds_display_destroy(ds_display_t *);
54extern void ds_display_lock(ds_display_t *);
55extern void ds_display_unlock(ds_display_t *);
56extern void ds_display_get_info(ds_display_t *, display_info_t *);
57extern void ds_display_add_client(ds_display_t *, ds_client_t *);
58extern void ds_display_remove_client(ds_client_t *);
59extern ds_client_t *ds_display_first_client(ds_display_t *);
60extern ds_client_t *ds_display_next_client(ds_client_t *);
61extern ds_window_t *ds_display_find_window(ds_display_t *, ds_wnd_id_t);
62extern ds_window_t *ds_display_window_by_pos(ds_display_t *, gfx_coord2_t *);
63extern void ds_display_add_window(ds_display_t *, ds_window_t *);
64extern void ds_display_remove_window(ds_window_t *);
65extern ds_window_t *ds_display_first_window(ds_display_t *);
66extern ds_window_t *ds_display_last_window(ds_display_t *);
67extern ds_window_t *ds_display_next_window(ds_window_t *);
68extern ds_window_t *ds_display_prev_window(ds_window_t *);
69extern errno_t ds_display_post_kbd_event(ds_display_t *, kbd_event_t *);
70extern errno_t ds_display_post_ptd_event(ds_display_t *, ptd_event_t *);
71extern void ds_display_add_seat(ds_display_t *, ds_seat_t *);
72extern void ds_display_remove_seat(ds_seat_t *);
73extern ds_seat_t *ds_display_first_seat(ds_display_t *);
74extern ds_seat_t *ds_display_next_seat(ds_seat_t *);
75extern errno_t ds_display_add_ddev(ds_display_t *, ds_ddev_t *);
76extern void ds_display_remove_ddev(ds_ddev_t *);
77extern ds_ddev_t *ds_display_first_ddev(ds_display_t *);
78extern ds_ddev_t *ds_display_next_ddev(ds_ddev_t *);
79extern void ds_display_add_cursor(ds_display_t *, ds_cursor_t *);
80extern void ds_display_remove_cursor(ds_cursor_t *);
81extern gfx_context_t *ds_display_get_gc(ds_display_t *);
82extern errno_t ds_display_paint_bg(ds_display_t *, gfx_rect_t *);
83extern errno_t ds_display_paint(ds_display_t *, gfx_rect_t *);
84
85#endif
86
87/** @}
88 */
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