/**

 * \file drm_sarea.h

 * \brief SAREA definitions

 *

 * \author Michel Dänzer <michel@daenzer.net>

 */

/*

 * Copyright 2002 Tungsten Graphics, Inc., Cedar Park, Texas.

 * 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, sublicense,

 * 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 NONINFRINGEMENT.  IN NO EVENT SHALL

 * TUNGSTEN GRAPHICS 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 _DRM_SAREA_H_

#define _DRM_SAREA_H_

#include "drm.h"

#if defined(__cplusplus)

extern "C" {

#endif

/* SAREA area needs to be at least a page */

#if defined(__alpha__)

#define SAREA_MAX                       0x2000U

#elif defined(__mips__)

#define SAREA_MAX                       0x4000U

#elif defined(__ia64__)

#define SAREA_MAX                       0x10000U	/* 64kB */

#else

/* Intel 830M driver needs at least 8k SAREA */

#define SAREA_MAX                       0x2000U

#endif

/** Maximum number of drawables in the SAREA */

#define SAREA_MAX_DRAWABLES		256

#define SAREA_DRAWABLE_CLAIMED_ENTRY    0x80000000

/** SAREA drawable */

struct drm_sarea_drawable {

	unsigned int stamp;

	unsigned int flags;

};

/** SAREA frame */

struct drm_sarea_frame {

	unsigned int x;

	unsigned int y;

	unsigned int width;

	unsigned int height;

	unsigned int fullscreen;

};

/** SAREA */

struct drm_sarea {

    /** first thing is always the DRM locking structure */

	struct drm_hw_lock lock;

    /** \todo Use readers/writer lock for drm_sarea::drawable_lock */

	struct drm_hw_lock drawable_lock;

	struct drm_sarea_drawable drawableTable[SAREA_MAX_DRAWABLES];	/**< drawables */

	struct drm_sarea_frame frame;	/**< frame */

	drm_context_t dummy_context;

};

typedef struct drm_sarea_drawable drm_sarea_drawable_t;

typedef struct drm_sarea_frame drm_sarea_frame_t;

typedef struct drm_sarea drm_sarea_t;

#if defined(__cplusplus)

}

#endif

#endif				/* _DRM_SAREA_H_ */