1/**
2 * \file sarea.h
3 * SAREA definitions.
4 *
5 * \author Kevin E. Martin <kevin@precisioninsight.com>
6 * \author Jens Owen <jens@tungstengraphics.com>
7 * \author Rickard E. (Rik) Faith <faith@valinux.com>
8 */
9
10/*
11 * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
12 * Copyright 2000 VA Linux Systems, Inc.
13 * All Rights Reserved.
14 *
15 * Permission is hereby granted, free of charge, to any person obtaining a
16 * copy of this software and associated documentation files (the
17 * "Software"), to deal in the Software without restriction, including
18 * without limitation the rights to use, copy, modify, merge, publish,
19 * distribute, sub license, and/or sell copies of the Software, and to
20 * permit persons to whom the Software is furnished to do so, subject to
21 * the following conditions:
22 *
23 * The above copyright notice and this permission notice (including the
24 * next paragraph) shall be included in all copies or substantial portions
25 * of the Software.
26 *
27 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
28 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
29 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
30 * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
31 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
32 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
33 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
34 */
35
36
37#ifndef _SAREA_H_
38#define _SAREA_H_
39
40#include "xf86drm.h"
41
42/* SAREA area needs to be at least a page */
43#if defined(__alpha__)
44#define SAREA_MAX 			0x2000
45#elif defined(__ia64__)
46#define SAREA_MAX			0x10000		/* 64kB */
47#else
48/* Intel 830M driver needs at least 8k SAREA */
49#define SAREA_MAX			0x2000
50#endif
51
52#define SAREA_MAX_DRAWABLES 		256
53
54#define SAREA_DRAWABLE_CLAIMED_ENTRY	0x80000000
55
56/**
57 * SAREA per drawable information.
58 *
59 * \sa _XF86DRISAREA.
60 */
61typedef struct _XF86DRISAREADrawable {
62    unsigned int	stamp;
63    unsigned int	flags;
64} XF86DRISAREADrawableRec, *XF86DRISAREADrawablePtr;
65
66/**
67 * SAREA frame information.
68 *
69 * \sa  _XF86DRISAREA.
70 */
71typedef struct _XF86DRISAREAFrame {
72    unsigned int        x;
73    unsigned int        y;
74    unsigned int        width;
75    unsigned int        height;
76    unsigned int        fullscreen;
77} XF86DRISAREAFrameRec, *XF86DRISAREAFramePtr;
78
79/**
80 * SAREA definition.
81 */
82typedef struct _XF86DRISAREA {
83    /** first thing is always the DRM locking structure */
84    drmLock			lock;
85    /** \todo Use readers/writer lock for drawable_lock */
86    drmLock			drawable_lock;
87    XF86DRISAREADrawableRec	drawableTable[SAREA_MAX_DRAWABLES];
88    XF86DRISAREAFrameRec        frame;
89    drm_context_t			dummy_context;
90} XF86DRISAREARec, *XF86DRISAREAPtr;
91
92#endif
93