Xrandrint.h revision 8d0bc965 
1/*
2 * Copyright © 2000, Compaq Computer Corporation,
3 * Copyright © 2002, Hewlett Packard, Inc.
4 *
5 * Permission to use, copy, modify, distribute, and sell this software and its
6 * documentation for any purpose is hereby granted without fee, provided that
7 * the above copyright notice appear in all copies and that both that
8 * copyright notice and this permission notice appear in supporting
9 * documentation, and that the name of Compaq or HP not be used in advertising
10 * or publicity pertaining to distribution of the software without specific,
11 * written prior permission.  HP makes no representations about the
12 * suitability of this software for any purpose.  It is provided "as is"
13 * without express or implied warranty.
14 *
15 * HP DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL HP
17 * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
18 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
19 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
20 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
21 *
22 * Author:  Jim Gettys, HP Labs, Hewlett-Packard, Inc.
23 */
24
25#ifndef _XRANDRINT_H_
26#define _XRANDRINT_H_
27
28#include <X11/Xlibint.h>
29#include <X11/Xutil.h>
30#include <X11/extensions/Xext.h>
31#include <X11/extensions/extutil.h>
32#include "Xrandr.h"
33#include <X11/extensions/randr.h>
34#include <X11/extensions/randrproto.h>
35
36extern char XRRExtensionName[];
37
38#define RRCheckExtension(dpy,i,val) \
39  XextCheckExtension (dpy, i, XRRExtensionName, val)
40#define RRSimpleCheckExtension(dpy,i) \
41  XextSimpleCheckExtension (dpy, i, XRRExtensionName)
42
43XExtDisplayInfo *XRRFindDisplay (Display *dpy);
44
45/* deliberately opaque internal data structure; can be extended,
46   but not reordered */
47struct _XRRScreenConfiguration {
48  Screen *screen;	/* the root window in GetScreenInfo */
49  XRRScreenSize *sizes;
50  Rotation rotations;
51  Rotation current_rotation;
52  int nsizes;
53  int current_size;
54  short current_rate;
55  Time timestamp;
56  Time config_timestamp;
57  int subpixel_order;	/* introduced in randr v0.1 */
58  short *rates;		/* introduced in randr v1.1 */
59  int nrates;
60};
61
62/*
63 * if a configure notify on the root is received, or
64 * an XRRScreenChangeNotify is received,
65 * XRRUpdateConfiguration should be called to update the X library's
66 * view of the screen configuration; it will also invalidate the cache
67 * provided by XRRScreenConfig and XRRConfig, and force a round trip
68 * when next used.  Returns invalid status if not an event type
69 * the library routine understand.
70 */
71
72/* we cache one screen configuration/screen */
73
74typedef struct _XRandRInfo {
75  XRRScreenConfiguration **config;
76  int major_version, minor_version;	/* major_version = -1 means we don't know */
77  Bool has_rates;			/* Server supports refresh rates */
78} XRandRInfo;
79
80typedef struct _randrVersionState {
81    unsigned long   version_seq;
82    Bool	    error;
83    int		    major_version;
84    int		    minor_version;
85} _XRRVersionState;
86
87Bool
88_XRRVersionHandler (Display	*dpy,
89		    xReply	*rep,
90		    char	*buf,
91		    int		len,
92		    XPointer    data);
93
94_X_HIDDEN Bool
95_XRRHasRates (int major, int minor);
96
97#endif /* _XRANDRINT_H_ */
98