Xdbe.h revision 2d7aecc9 
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 Xlib-related DBE
30 *
31 *****************************************************************************/
32
33#ifndef XDBE_H
34#define XDBE_H
35
36#include <X11/Xfuncproto.h>
37#include <X11/extensions/dbe.h>
38
39typedef struct
40{
41    VisualID    visual;    /* one visual ID that supports double-buffering */
42    int         depth;     /* depth of visual in bits                      */
43    int         perflevel; /* performance level of visual                  */
44}
45XdbeVisualInfo;
46
47typedef struct
48{
49    int                 count;          /* number of items in visual_depth   */
50    XdbeVisualInfo      *visinfo;       /* list of visuals & depths for scrn */
51}
52XdbeScreenVisualInfo;
53
54
55typedef Drawable XdbeBackBuffer;
56
57typedef unsigned char XdbeSwapAction;
58
59typedef struct
60{
61    Window		swap_window;    /* window for which to swap buffers   */
62    XdbeSwapAction	swap_action;    /* swap action to use for swap_window */
63}
64XdbeSwapInfo;
65
66typedef struct
67{
68    Window	window;			/* window that buffer belongs to */
69}
70XdbeBackBufferAttributes;
71
72typedef struct
73{
74    int			type;
75    Display		*display;	/* display the event was read from */
76    XdbeBackBuffer	buffer;		/* resource id                     */
77    unsigned long	serial;		/* serial number of failed request */
78    unsigned char	error_code;	/* error base + XdbeBadBuffer      */
79    unsigned char	request_code;	/* major opcode of failed request  */
80    unsigned char	minor_code;	/* minor opcode of failed request  */
81}
82XdbeBufferError;
83
84/* _XFUNCPROTOBEGIN and _XFUNCPROTOEND are defined as noops
85 * (for non-C++ builds) in X11/Xfuncproto.h.
86 */
87_XFUNCPROTOBEGIN
88
89extern Status XdbeQueryExtension(
90    Display*		/* dpy                  */,
91    int*		/* major_version_return */,
92    int*		/* minor_version_return */
93);
94
95extern XdbeBackBuffer XdbeAllocateBackBufferName(
96    Display*		/* dpy         */,
97    Window		/* window      */,
98    XdbeSwapAction	/* swap_action */
99);
100
101extern Status XdbeDeallocateBackBufferName(
102    Display*		/* dpy    */,
103    XdbeBackBuffer	/* buffer */
104);
105
106extern Status XdbeSwapBuffers(
107    Display*		/* dpy         */,
108    XdbeSwapInfo*	/* swap_info   */,
109    int			/* num_windows */
110);
111
112extern Status XdbeBeginIdiom(
113    Display*		/* dpy */
114);
115
116extern Status XdbeEndIdiom(
117    Display*		/* dpy */
118);
119
120extern XdbeScreenVisualInfo *XdbeGetVisualInfo(
121    Display*		/* dpy               */,
122    Drawable*		/* screen_specifiers */,
123    int*		/* num_screens       */
124);
125
126extern void XdbeFreeVisualInfo(
127    XdbeScreenVisualInfo*	/* visual_info */
128);
129
130extern XdbeBackBufferAttributes *XdbeGetBackBufferAttributes(
131    Display*		/* dpy    */,
132    XdbeBackBuffer	/* buffer */
133);
134
135_XFUNCPROTOEND
136
137#endif /* XDBE_H */
138
139