midbestr.h revision 706f2543 
1/******************************************************************************
2 *
3 * Copyright (c) 1994, 1995  Hewlett-Packard Company
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included
14 * in all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
19 * IN NO EVENT SHALL HEWLETT-PACKARD COMPANY BE LIABLE FOR ANY CLAIM,
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Except as contained in this notice, the name of the Hewlett-Packard
25 * Company shall not be used in advertising or otherwise to promote the
26 * sale, use or other dealings in this Software without prior written
27 * authorization from the Hewlett-Packard Company.
28 *
29 *     Header file for users of machine-independent DBE code
30 *
31 *****************************************************************************/
32
33
34#ifdef HAVE_DIX_CONFIG_H
35#include <dix-config.h>
36#endif
37
38#ifndef MIDBE_STRUCT_H
39#define MIDBE_STRUCT_H
40
41
42/* DEFINES */
43
44#define MI_DBE_WINDOW_PRIV_PRIV(pDbeWindowPriv) \
45    (!(pDbeWindowPriv) ? NULL : (MiDbeWindowPrivPrivPtr) \
46     dixLookupPrivate(&(pDbeWindowPriv)->devPrivates, miDbeWindowPrivPrivKey))
47
48#define MI_DBE_WINDOW_PRIV_PRIV_FROM_WINDOW(pWin)\
49    MI_DBE_WINDOW_PRIV_PRIV(DBE_WINDOW_PRIV(pWin))
50
51/* TYPEDEFS */
52
53typedef struct _MiDbeWindowPrivPrivRec
54{
55    /* Place machine-specific fields in here.
56     * Since this is mi code, we do not really have machine-specific fields.
57     */
58
59    /* Pointer to a drawable that contains the contents of the back buffer.
60     */
61    PixmapPtr		pBackBuffer;
62
63    /* Pointer to a drawable that contains the contents of the front buffer.
64     * This pointer is only used for the XdbeUntouched swap action.  For that
65     * swap action, we need to copy the front buffer (window) contents into
66     * this drawable, copy the contents of current back buffer drawable (the
67     * back buffer) into the window, swap the front and back drawable pointers,
68     * and then swap the drawable/resource associations in the resource
69     * database.
70     */
71    PixmapPtr		pFrontBuffer;
72
73    /* Pointer back to our window private with which we are associated. */
74    DbeWindowPrivPtr	pDbeWindowPriv;
75
76} MiDbeWindowPrivPrivRec, *MiDbeWindowPrivPrivPtr;
77
78#endif /* MIDBE_STRUCT_H */
79
80