sarea.h

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/*
 * 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

typedef struct _XF86DRISAREADrawable {
    unsigned int    stamp;
    unsigned int    flags;
} XF86DRISAREADrawableRec, *XF86DRISAREADrawablePtr;

typedef struct _XF86DRISAREAFrame {
    unsigned int        x;
    unsigned int        y;
    unsigned int        width;
    unsigned int        height;
    unsigned int        fullscreen;
} XF86DRISAREAFrameRec, *XF86DRISAREAFramePtr;

typedef struct _XF86DRISAREA {
    drmLock         lock;
    drmLock         drawable_lock;
    XF86DRISAREADrawableRec drawableTable[SAREA_MAX_DRAWABLES];
    XF86DRISAREAFrameRec        frame;
    drm_context_t           dummy_context;
} XF86DRISAREARec, *XF86DRISAREAPtr;

#endif