1 // -*- C++ -*- 2 // $Id: utils.h,v 1.22 2002/07/02 22:11:03 t1mpy Exp $ 3 4 // id3lib: a C++ library for creating and manipulating id3v1/v2 tags 5 // Copyright 1999, 2000 Scott Thomas Haug 6 7 // This library is free software; you can redistribute it and/or modify it 8 // under the terms of the GNU Library General Public License as published by 9 // the Free Software Foundation; either version 2 of the License, or (at your 10 // option) any later version. 11 // 12 // This library is distributed in the hope that it will be useful, but WITHOUT 13 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public 15 // License for more details. 16 // 17 // You should have received a copy of the GNU Library General Public License 18 // along with this library; if not, write to the Free Software Foundation, 19 // Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 20 21 // The id3lib authors encourage improvements and optimisations to be sent to 22 // the id3lib coordinator. Please see the README file for details on where to 23 // send such submissions. See the AUTHORS file for a list of people who have 24 // contributed to id3lib. See the ChangeLog file for a list of changes to 25 // id3lib. These files are distributed with id3lib at 26 // http://download.sourceforge.net/id3lib/ 27 28 #ifndef _ID3LIB_UTILS_H_ 29 #define _ID3LIB_UTILS_H_ 30 31 #if defined HAVE_CONFIG_H 32 #include <config.h> 33 #endif 34 35 #include "id3/id3lib_streams.h" 36 #include "id3/globals.h" //has <stdlib.h> "id3/sized_types.h" 37 #include "id3/id3lib_strings.h" 38 39 namespace dami 40 { 41 #ifdef MAXPATHLEN 42 # define ID3_PATH_LENGTH (MAXPATHLEN + 1) 43 #elif defined (PATH_MAX) 44 # define ID3_PATH_LENGTH (PATH_MAX + 1) 45 #else /* !MAXPATHLEN */ 46 # define ID3_PATH_LENGTH (2048 + 1) 47 #endif /* !MAXPATHLEN && !PATH_MAX */ 48 49 #ifndef min 50 template<typename T> min(const T & a,const T & b)51 const T& min(const T& a, const T& b) 52 { 53 return (a < b) ? a : b; 54 } 55 #endif 56 57 #ifndef max 58 template<typename T> max(const T & a,const T & b)59 const T& max(const T& a, const T& b) 60 { 61 return (b < a) ? a : b; 62 } 63 #endif 64 65 #ifndef mid 66 template<typename T> mid(const T & lo,const T & mid,const T & hi)67 const T& mid(const T& lo, const T& mid, const T& hi) 68 { 69 return max(lo, min(mid, hi)); 70 } 71 #endif 72 73 #ifndef abs 74 template<typename T> abs(const T & a)75 T abs(const T& a) 76 { 77 return (a < T(0)) ? -a : a; 78 } 79 #endif 80 81 size_t ID3_C_EXPORT renderNumber(uchar *buffer, uint32 val, size_t size = sizeof(uint32)); 82 String ID3_C_EXPORT renderNumber(uint32 val, size_t size = sizeof(uint32)); 83 84 String ID3_C_EXPORT toString(uint32 val); 85 WString ID3_C_EXPORT toWString(const unicode_t[], size_t); 86 87 size_t ID3_C_EXPORT ucslen(const unicode_t *unicode); 88 String ID3_C_EXPORT convert(String data, ID3_TextEnc, ID3_TextEnc); 89 90 // file utils 91 size_t ID3_C_EXPORT getFileSize(fstream&); 92 size_t ID3_C_EXPORT getFileSize(ifstream&); 93 size_t ID3_C_EXPORT getFileSize(ofstream&); 94 ID3_Err ID3_C_EXPORT createFile(String, fstream&); 95 ID3_Err ID3_C_EXPORT openWritableFile(String, fstream&); 96 ID3_Err ID3_C_EXPORT openWritableFile(String, ofstream&); 97 ID3_Err ID3_C_EXPORT openReadableFile(String, fstream&); 98 ID3_Err ID3_C_EXPORT openReadableFile(String, ifstream&); 99 100 }; 101 102 #endif /* _ID3LIB_UTILS_H_ */ 103 104