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- /*
- * Copyright (C) 2000 The XFree86 Project, 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, 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 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 THE
- * XFREE86 PROJECT 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.
- *
- * Except as contained in this notice, the name of the XFree86 Project shall
- * not be used in advertising or otherwise to promote the sale, use or other
- * dealings in this Software without prior written authorization from the
- * XFree86 Project.
- *
- */
- #ifndef _MICOORD_H_
- #define _MICOORD_H_ 1
- #include "servermd.h"
- /* Macros which handle a coordinate in a single register */
- /*
- * Most compilers will convert divisions by 65536 into shifts, if signed
- * shifts exist. If your machine does arithmetic shifts and your compiler
- * can't get it right, add to this line.
- */
- /*
- * 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(ia64) || \
- defined(__s390x__) || defined(__s390__) || \
- defined(__amd64__) || defined(amd64) || defined(__amd64)
- #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_ */
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