xcompositeint.h revision c3e29c03 
1/*
2 * Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 */
23/*
24 * Copyright © 2003 Keith Packard
25 *
26 * Permission to use, copy, modify, distribute, and sell this software and its
27 * documentation for any purpose is hereby granted without fee, provided that
28 * the above copyright notice appear in all copies and that both that
29 * copyright notice and this permission notice appear in supporting
30 * documentation, and that the name of Keith Packard not be used in
31 * advertising or publicity pertaining to distribution of the software without
32 * specific, written prior permission.  Keith Packard makes no
33 * representations about the suitability of this software for any purpose.  It
34 * is provided "as is" without express or implied warranty.
35 *
36 * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
37 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
38 * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
39 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
40 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
41 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
42 * PERFORMANCE OF THIS SOFTWARE.
43 */
44
45#ifndef _XCOMPOSITEINT_H_
46#define _XCOMPOSITEINT_H_
47
48#include <stdio.h>
49#include <X11/Xfuncproto.h>
50#include <X11/Xlib.h>
51#include <X11/Xlibint.h>
52#include <X11/Xutil.h>
53#include <X11/extensions/compositeproto.h>
54#include <X11/extensions/Xcomposite.h>
55
56typedef struct _XCompositeExtDisplayInfo {
57    struct _XCompositeExtDisplayInfo  *next;    /* keep a linked list */
58    Display                 *display;	    /* which display this is */
59    XExtCodes               *codes;	    /* the extension protocol codes */
60    int			    major_version;  /* -1 means we don't know */
61    int			    minor_version;  /* -1 means we don't know */
62} XCompositeExtDisplayInfo;
63
64/* replaces XExtensionInfo */
65typedef struct _XCompositeExtInfo {
66    XCompositeExtDisplayInfo    *head;          /* start of the list */
67    XCompositeExtDisplayInfo    *cur;           /* most recently used */
68    int                     ndisplays;      /* number of displays */
69} XCompositeExtInfo;
70
71extern XCompositeExtInfo XCompositeExtensionInfo;
72extern const char XCompositeExtensionName[];
73
74XCompositeExtDisplayInfo *
75XCompositeFindDisplay (Display *dpy);
76
77#define XCompositeHasExtension(i) ((i) && ((i)->codes))
78
79#define XCompositeCheckExtension(dpy,i,val) \
80    do { if (!XCompositeHasExtension(i)) { return val; } } while (0)
81
82#define XCompositeSimpleCheckExtension(dpy,i) \
83    do { if (!XCompositeHasExtension(i)) { return; } } while (0)
84
85#endif /* _XCOMPOSITEINT_H_ */
86