ucommon
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00001 // Copyright (C) 2006-2014 David Sugar, Tycho Softworks. 00002 // 00003 // This file is part of GNU uCommon C++. 00004 // 00005 // GNU uCommon C++ is free software: you can redistribute it and/or modify 00006 // it under the terms of the GNU Lesser General Public License as published 00007 // by the Free Software Foundation, either version 3 of the License, or 00008 // (at your option) any later version. 00009 // 00010 // GNU uCommon C++ is distributed in the hope that it will be useful, 00011 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00013 // GNU Lesser General Public License for more details. 00014 // 00015 // You should have received a copy of the GNU Lesser General Public License 00016 // along with GNU uCommon C++. If not, see <http://www.gnu.org/licenses/>. 00017 00026 #ifndef _UCOMMON_BITMAP_H_ 00027 #define _UCOMMON_BITMAP_H_ 00028 00029 #ifndef _UCOMMON_CONFIG_H_ 00030 #include <ucommon/platform.h> 00031 #endif 00032 00033 namespace ucommon { 00034 00051 class __EXPORT bitmap 00052 { 00053 protected: 00054 size_t size; 00055 00056 typedef union 00057 { 00058 void *a; 00059 uint8_t *b; 00060 uint16_t *w; 00061 uint32_t *l; 00062 uint64_t *d; 00063 } addr_t; 00064 00065 addr_t addr; 00066 00067 public: 00071 typedef enum { 00072 BMALLOC, 00073 B8, 00074 B16, 00075 B32, 00076 B64, 00077 BMIN = BMALLOC, 00078 BMAX = B64 00079 } bus_t; 00080 00081 protected: 00082 bus_t bus; 00083 00084 unsigned memsize(void) const; 00085 00086 public: 00093 bitmap(void *addr, size_t length, bus_t size = B8); 00094 00100 bitmap(size_t length); 00101 00107 ~bitmap(); 00108 00112 void clear(void); 00113 00119 bool get(size_t offset) const; 00120 00126 void set(size_t offset, bool value); 00127 }; 00128 00129 } // namespace ucommon 00130 00131 #endif