sarea.h revision 35c4bbdf 
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#ifndef _SAREA_H_
37#define _SAREA_H_
38
39#include "xf86drm.h"
40
41/* SAREA area needs to be at least a page */
42#if defined(__alpha__)
43#define SAREA_MAX 			0x2000
44#elif defined(__ia64__)
45#define SAREA_MAX			0x10000 /* 64kB */
46#else
47/* Intel 830M driver needs at least 8k SAREA */
48#define SAREA_MAX			0x2000
49#endif
50
51#define SAREA_MAX_DRAWABLES 		256
52
53#define SAREA_DRAWABLE_CLAIMED_ENTRY	0x80000000
54
55/**
56 * SAREA per drawable information.
57 *
58 * \sa _XF86DRISAREA.
59 */
60typedef struct _XF86DRISAREADrawable {
61    unsigned int stamp;
62    unsigned int flags;
63} XF86DRISAREADrawableRec, *XF86DRISAREADrawablePtr;
64
65/**
66 * SAREA frame information.
67 *
68 * \sa  _XF86DRISAREA.
69 */
70typedef struct _XF86DRISAREAFrame {
71    unsigned int x;
72    unsigned int y;
73    unsigned int width;
74    unsigned int height;
75    unsigned int fullscreen;
76} XF86DRISAREAFrameRec, *XF86DRISAREAFramePtr;
77
78/**
79 * SAREA definition.
80 */
81typedef struct _XF86DRISAREA {
82    /** first thing is always the DRM locking structure */
83    drmLock lock;
84    /** \todo Use readers/writer lock for drawable_lock */
85    drmLock drawable_lock;
86    XF86DRISAREADrawableRec drawableTable[SAREA_MAX_DRAWABLES];
87    XF86DRISAREAFrameRec frame;
88    drm_context_t dummy_context;
89} XF86DRISAREARec, *XF86DRISAREAPtr;
90
91typedef struct _XF86DRILSAREA {
92    drmLock lock;
93    drmLock otherLocks[31];
94} XF86DRILSAREARec, *XF86DRILSAREAPtr;
95
96#endif
97