a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync/* $XFree86: xc/programs/Xserver/mi/micoord.h,v 1.5 2002/05/22 21:38:31 herrb Exp $ */
a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync * Copyright (C) 2000 The XFree86 Project, Inc. All Rights Reserved.
a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync * Permission is hereby granted, free of charge, to any person obtaining a copy
a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync * of this software and associated documentation files (the "Software"), to
a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync * deal in the Software without restriction, including without limitation the
a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync * sell copies of the Software, and to permit persons to whom the Software is
a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync * furnished to do so, subject to the following conditions:
a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync * The above copyright notice and this permission notice shall be included in
a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync * all copies or substantial portions of the Software.
a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync * XFREE86 PROJECT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync * Except as contained in this notice, the name of the XFree86 Project shall
a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync * not be used in advertising or otherwise to promote the sale, use or other
a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync * dealings in this Software without prior written authorization from the
a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync * XFree86 Project.
a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync/* Macros which handle a coordinate in a single register */
a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync * Most compilers will convert divisions by 65536 into shifts, if signed
a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync * shifts exist. If your machine does arithmetic shifts and your compiler
a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync * can't get it right, add to this line.
a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync * mips compiler - what a joke - it CSEs the 65536 constant into a reg
a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync * forcing as to use div instead of shift. Let's be explicit.
a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync#if defined(mips) || \
a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync#define intToCoord(i,x,y) (((x) = GetHighWord(i)), ((y) = (int) ((short) (i))))
a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync#define coordToInt(x,y) (((x) << 16) | ((y) & 0xffff))
a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync#define intToCoord(i,x,y) (((x) = (int) ((short) (i))), ((y) = GetHighWord(i)))
a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync#define coordToInt(x,y) (((y) << 16) | ((x) & 0xffff))
a2760a4d593af57a19ec32cdfd1723b68495df8cvboxsync#endif /* _MICOORD_H_ */