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1 /*
2  * Copyright © 2012 Intel Corporation
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining
5  * a copy of this software and associated documentation files (the
6  * "Software"), to deal in the Software without restriction, including
7  * without limitation the rights to use, copy, modify, merge, publish,
8  * distribute, sublicense, and/or sell copies of the Software, and to
9  * permit persons to whom the Software is furnished to do so, subject to
10  * the following conditions:
11  *
12  * The above copyright notice and this permission notice (including the
13  * next paragraph) shall be included in all copies or substantial
14  * portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19  * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
20  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
21  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23  * SOFTWARE.
24  */
25 
26 #ifndef WAYLAND_CURSOR_H
27 #define WAYLAND_CURSOR_H
28 
29 #include <stdint.h>
30 
31 #ifdef  __cplusplus
32 extern "C" {
33 #endif
34 
35 struct wl_cursor_theme;
36 struct wl_buffer;
37 struct wl_shm;
38 
39 /** A still image part of a cursor
40  *
41  * Use `wl_cursor_image_get_buffer()` to get the corresponding `struct
42  * wl_buffer` to attach to your `struct wl_surface`. */
43 struct wl_cursor_image {
44 	/** Actual width */
45 	uint32_t width;
46 
47 	/** Actual height */
48 	uint32_t height;
49 
50 	/** Hot spot x (must be inside image) */
51 	uint32_t hotspot_x;
52 
53 	/** Hot spot y (must be inside image) */
54 	uint32_t hotspot_y;
55 
56 	/** Animation delay to next frame (ms) */
57 	uint32_t delay;
58 };
59 
60 /** A cursor, as returned by `wl_cursor_theme_get_cursor()` */
61 struct wl_cursor {
62 	/** How many images there are in this cursor’s animation */
63 	unsigned int image_count;
64 
65 	/** The array of still images composing this animation */
66 	struct wl_cursor_image **images;
67 
68 	/** The name of this cursor */
69 	char *name;
70 };
71 
72 struct wl_cursor_theme *
73 wl_cursor_theme_load(const char *name, int size, struct wl_shm *shm);
74 
75 void
76 wl_cursor_theme_destroy(struct wl_cursor_theme *theme);
77 
78 struct wl_cursor *
79 wl_cursor_theme_get_cursor(struct wl_cursor_theme *theme,
80 			   const char *name);
81 
82 struct wl_buffer *
83 wl_cursor_image_get_buffer(struct wl_cursor_image *image);
84 
85 int
86 wl_cursor_frame(struct wl_cursor *cursor, uint32_t time);
87 
88 int
89 wl_cursor_frame_and_duration(struct wl_cursor *cursor, uint32_t time,
90 			     uint32_t *duration);
91 
92 #ifdef  __cplusplus
93 }
94 #endif
95 
96 #endif
97