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      1 /*
      2  * Copyright (c) 2006, Oracle and/or its affiliates.
      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 
     56 typedef 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 */
     65 typedef struct _XCompositeExtInfo {
     66     XCompositeExtDisplayInfo    *head;          /* start of the list */
     67     XCompositeExtDisplayInfo    *cur;           /* most recently used */
     68     int                     ndisplays;      /* number of displays */
     69 } XCompositeExtInfo;
     70 
     71 extern XCompositeExtInfo XCompositeExtensionInfo;
     72 extern const char XCompositeExtensionName[];
     73 
     74 XCompositeExtDisplayInfo *
     75 XCompositeFindDisplay (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