00001 //=========================================================================== 00002 //Copyright (C) 2003, 2004 Zentaro Kavanagh 00003 // 00004 //Redistribution and use in source and binary forms, with or without 00005 //modification, are permitted provided that the following conditions 00006 //are met: 00007 // 00008 //- Redistributions of source code must retain the above copyright 00009 // notice, this list of conditions and the following disclaimer. 00010 // 00011 //- Redistributions in binary form must reproduce the above copyright 00012 // notice, this list of conditions and the following disclaimer in the 00013 // documentation and/or other materials provided with the distribution. 00014 // 00015 //- Neither the name of Zentaro Kavanagh nor the names of contributors 00016 // may be used to endorse or promote products derived from this software 00017 // without specific prior written permission. 00018 // 00019 //THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 00020 //``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 00021 //LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 00022 //PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE ORGANISATION OR 00023 //CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 00024 //EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 00025 //PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 00026 //PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 00027 //LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 00028 //NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00029 //SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00030 //=========================================================================== 00031 00032 #include "stdafx.h" 00033 #include <libilliCore/iLE_Math.h> 00034 00035 iLE_Math::iLE_Math(void) 00036 { 00037 } 00038 00039 iLE_Math::~iLE_Math(void) 00040 { 00041 } 00042 00043 unsigned long iLE_Math::charArrToULong(const unsigned char* inCharArray) 00044 { 00045 //Turns the next four bytes from the pointer in a long LSB (least sig. byte first/leftmost) 00046 unsigned long locVal = 0; 00047 for (int i = 3; i >= 0; i--) { 00048 locVal <<= 8; 00049 locVal += inCharArray[i]; 00050 } 00051 return locVal; 00052 } 00053 void iLE_Math::ULongToCharArr(unsigned long inLong, unsigned char* outCharArray) 00054 { 00055 //Writes a long LSB (least sig. byte first/leftmost) out to the char arr 00056 00057 outCharArray[3] = (unsigned char) (inLong >> 24); 00058 outCharArray[2] = (unsigned char) ((inLong << 8) >> 24); 00059 outCharArray[1] = (unsigned char) ((inLong << 16) >> 24); 00060 outCharArray[0] = (unsigned char) ((inLong << 24) >> 24); 00061 00062 } 00063 00064 void iLE_Math::UShortToCharArr(unsigned short inShort, unsigned char* outCharArray) { 00065 outCharArray[0] = (unsigned char)(inShort % 256); 00066 outCharArray[1] = (unsigned char)(inShort / 256); 00067 } 00068 unsigned short iLE_Math::charArrToUShort(const unsigned char* inCharArray) { 00069 return (inCharArray[1] << 8) + inCharArray[0]; 00070 } 00071 LOOG_INT64 iLE_Math::CharArrToInt64(const unsigned char* inCharArray) { 00072 LOOG_INT64 locData = 0; 00073 00074 for (int i = 7; i >= 0; i--) { 00075 locData <<= 8; 00076 locData += inCharArray[i]; 00077 } 00078 return locData; 00079 } 00080 00081 void iLE_Math::Int64ToCharArr(LOOG_INT64 inInt64, unsigned char* outCharArray) { 00082 for (unsigned char i = 0; i < 8; i++) { 00083 //This way sux ! 00084 outCharArray[i] = (unsigned char)((inInt64 << ((7 - i) * 8)) >> 56); 00085 } 00086 }