d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync/*
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync * Copyright (C) 2000 The XFree86 Project, Inc. All Rights Reserved.
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync *
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync * Permission is hereby granted, free of charge, to any person obtaining a copy
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync * of this software and associated documentation files (the "Software"), to
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync * deal in the Software without restriction, including without limitation the
c7814cf6e1240a519cbec0441e033d0e2470ed00vboxsync * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync * sell copies of the Software, and to permit persons to whom the Software is
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync * furnished to do so, subject to the following conditions:
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync *
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync * The above copyright notice and this permission notice shall be included in
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync * all copies or substantial portions of the Software.
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync *
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync *
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync * Except as contained in this notice, the name of the XFree86 Project shall
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync * not be used in advertising or otherwise to promote the sale, use or other
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync * dealings in this Software without prior written authorization from the
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync * XFree86 Project.
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync *
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync */
aa4bcf0a4b2db3ac352b56a291d49cb8d4b66d32vboxsync
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync#ifndef _MICOORD_H_
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync#define _MICOORD_H_ 1
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync#include "servermd.h"
aa4bcf0a4b2db3ac352b56a291d49cb8d4b66d32vboxsync
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync/* Macros which handle a coordinate in a single register */
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync/*
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync * Most compilers will convert divisions by 65536 into shifts, if signed
e86538a7bc028e823f16f8982e90f0c7ef5d4ecevboxsync * shifts exist. If your machine does arithmetic shifts and your compiler
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync * can't get it right, add to this line.
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync */
aa4bcf0a4b2db3ac352b56a291d49cb8d4b66d32vboxsync
d69cc4d44249be273a3e0d4657e8d21bf30eb364vboxsync/*
* mips compiler - what a joke - it CSEs the 65536 constant into a reg
* forcing as to use div instead of shift. Let's be explicit.
*/
#if defined(mips) || defined(sgi) || \
defined(sparc) || defined(__sparc64__) || \
defined(__alpha) || defined(__alpha__) || \
defined(__i386__) || defined(__i386) || defined(__ia64__) || \
defined(__s390x__) || defined(__s390__) || \
defined(__amd64__) || defined(amd64) || defined(__amd64) || defined(__x86_64__)
#define GetHighWord(x) (((int) (x)) >> 16)
#else
#define GetHighWord(x) (((int) (x)) / 65536)
#endif
#if IMAGE_BYTE_ORDER == MSBFirst
#define intToCoord(i,x,y) (((x) = GetHighWord(i)), ((y) = (int) ((short) (i))))
#define coordToInt(x,y) (((x) << 16) | ((y) & 0xffff))
#define intToX(i) (GetHighWord(i))
#define intToY(i) ((int) ((short) i))
#else
#define intToCoord(i,x,y) (((x) = (int) ((short) (i))), ((y) = GetHighWord(i)))
#define coordToInt(x,y) (((y) << 16) | ((x) & 0xffff))
#define intToX(i) ((int) ((short) (i)))
#define intToY(i) (GetHighWord(i))
#endif
#endif /* _MICOORD_H_ */