micoord.h (2082B)
1 /* 2 * Copyright (C) 2000 The XFree86 Project, Inc. All Rights Reserved. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a copy 5 * of this software and associated documentation files (the "Software"), to 6 * deal in the Software without restriction, including without limitation the 7 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 8 * sell copies of the Software, and to permit persons to whom the Software is 9 * furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 17 * XFREE86 PROJECT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER 18 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 19 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 20 * 21 * Except as contained in this notice, the name of the XFree86 Project shall 22 * not be used in advertising or otherwise to promote the sale, use or other 23 * dealings in this Software without prior written authorization from the 24 * XFree86 Project. 25 * 26 */ 27 28 #ifndef _MICOORD_H_ 29 #define _MICOORD_H_ 1 30 31 #include "servermd.h" 32 33 /* Macros which handle a coordinate in a single register */ 34 35 #define GetHighWord(x) (((int) (x)) >> 16) 36 37 #if IMAGE_BYTE_ORDER == MSBFirst 38 #define intToCoord(i,x,y) (((x) = GetHighWord(i)), ((y) = (int) ((short) (i)))) 39 #define coordToInt(x,y) (((x) << 16) | ((y) & 0xffff)) 40 #define intToX(i) (GetHighWord(i)) 41 #define intToY(i) ((int) ((short) i)) 42 #else 43 #define intToCoord(i,x,y) (((x) = (int) ((short) (i))), ((y) = GetHighWord(i))) 44 #define coordToInt(x,y) (((y) << 16) | ((x) & 0xffff)) 45 #define intToX(i) ((int) ((short) (i))) 46 #define intToY(i) (GetHighWord(i)) 47 #endif 48 49 #endif /* _MICOORD_H_ */