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/**
* \file sarea.h
* SAREA definitions.
*
* \author Kevin E. Martin <kevin@precisioninsight.com>
* \author Jens Owen <jens@tungstengraphics.com>
* \author Rickard E. (Rik) Faith <faith@valinux.com>
*/
/*
* Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
* Copyright 2000 VA Linux Systems, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef _SAREA_H_
#define _SAREA_H_
#include "xf86drm.h"
/* SAREA area needs to be at least a page */
#if defined(__alpha__)
#define SAREA_MAX 0x2000
#elif defined(__ia64__)
#define SAREA_MAX 0x10000 /* 64kB */
#else
/* Intel 830M driver needs at least 8k SAREA */
#define SAREA_MAX 0x2000
#endif
#define SAREA_MAX_DRAWABLES 256
#define SAREA_DRAWABLE_CLAIMED_ENTRY 0x80000000
/**
* SAREA per drawable information.
*
* \sa _XF86DRISAREA.
*/
typedef struct _XF86DRISAREADrawable {
unsigned int stamp;
unsigned int flags;
} XF86DRISAREADrawableRec, *XF86DRISAREADrawablePtr;
/**
* SAREA frame information.
*
* \sa _XF86DRISAREA.
*/
typedef struct _XF86DRISAREAFrame {
unsigned int x;
unsigned int y;
unsigned int width;
unsigned int height;
unsigned int fullscreen;
} XF86DRISAREAFrameRec, *XF86DRISAREAFramePtr;
/**
* SAREA definition.
*/
typedef struct _XF86DRISAREA {
/** first thing is always the DRM locking structure */
drmLock lock;
/** \todo Use readers/writer lock for drawable_lock */
drmLock drawable_lock;
XF86DRISAREADrawableRec drawableTable[SAREA_MAX_DRAWABLES];
XF86DRISAREAFrameRec frame;
drm_context_t dummy_context;
} XF86DRISAREARec, *XF86DRISAREAPtr;
typedef struct _XF86DRILSAREA {
drmLock lock;
drmLock otherLocks[31];
} XF86DRILSAREARec, *XF86DRILSAREAPtr;
#endif
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