/*
 * Copyright © 2002 Keith Packard
 *
 * Permission to use, copy, modify, distribute, and sell this software and its
 * documentation for any purpose is hereby granted without fee, provided that
 * the above copyright notice appear in all copies and that both that
 * copyright notice and this permission notice appear in supporting
 * documentation, and that the name of Keith Packard not be used in
 * advertising or publicity pertaining to distribution of the software without
 * specific, written prior permission.  Keith Packard makes no
 * representations about the suitability of this software for any purpose.  It
 * is provided "as is" without express or implied warranty.
 *
 * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
 * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 */

#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif

#ifndef _XFIXES_H_
#define _XFIXES_H_

#include "resource.h"

extern _X_EXPORT RESTYPE RegionResType;
extern _X_EXPORT RESTYPE PointerBarrierType;
extern _X_EXPORT int XFixesErrorBase;

#define VERIFY_REGION(pRegion, rid, client, mode)			\
    do {								\
	int err;							\
	err = dixLookupResourceByType((pointer *) &pRegion, rid,	\
				      RegionResType, client, mode);	\
	if (err != Success) {						\
	    client->errorValue = rid;					\
	    return err;							\
	}								\
    } while (0)

#define VERIFY_REGION_OR_NONE(pRegion, rid, client, mode) { \
    pRegion = 0; \
    if (rid) VERIFY_REGION(pRegion, rid, client, mode); \
}

extern _X_EXPORT RegionPtr
 XFixesRegionCopy(RegionPtr pRegion);

struct PointerBarrier {
    CARD16 x1, x2, y1, y2;
    CARD32 directions;
};

extern int
 barrier_get_direction(int, int, int, int);
extern BOOL
barrier_is_blocking(const struct PointerBarrier *, int, int, int, int,
                    double *);
extern BOOL barrier_is_blocking_direction(const struct PointerBarrier *, int);
extern void

barrier_clamp_to_barrier(struct PointerBarrier *barrier, int dir, int *x,
                         int *y);

#endif                          /* _XFIXES_H_ */