include/binary.h

   1 #ifndef MESH_IO_BINARY_H_INCLUDED
   2 #define MESH_IO_BINARY_H_INCLUDED
   3
   4 #include <fstream>
   5 #include <vector>
   6 #include <assert.h>
   7 #include <stdarg.h>
   8
   9 namespace meshio {
  10 namespace binary {
  11
  12 /**
  13  * \83f\81[\83^\93Ç\82Ý\8d\9e\82Ý\83C\83\93\83^\81[\83t\83F\81[\83X
  14  */
  15 class IReader
  16 {
  17 public:
  18         virtual ~IReader(){}
  19         virtual unsigned int read(char *buf, unsigned int size)=0;
  20         virtual unsigned int getPos()const=0;
  21         virtual bool isEnd()const=0;
  22
  23         template<typename T>
  24                 bool get(T &t)
  25                 {
  26                         if(read(reinterpret_cast<char*>(&t), sizeof(t))){
  27                                 return true;
  28                         }
  29                         else{
  30                                 return false;
  31                         }
  32                 }
  33         char getChar()
  34         {
  35                 char byte;
  36                 return get(byte) ? byte : 0;
  37         }
  38         std::string getString(unsigned int length, bool isTrim=false)
  39         {
  40                 std::vector<char> buf(length);
  41                 read(&buf[0], buf.size());
  42
  43                 std::vector<char>::iterator it;
  44                 if(isTrim){
  45                         it=buf.begin();
  46                         for(; it!=buf.end(); ++it){
  47                                 if(*it=='\0'){
  48                                         break;
  49                                 }
  50                         }
  51                 }
  52                 else{
  53                         it=buf.end();
  54                 }
  55                 return std::string(buf.begin(), it);
  56         }
  57         unsigned char getUchar()
  58         {
  59                 unsigned char value;
  60                 return get(value) ? value : 0;
  61         }
  62         unsigned short getUshort()
  63         {
  64                 unsigned short value;
  65                 return get(value) ? value : 0;
  66         }
  67         unsigned int getUint()
  68         {
  69                 unsigned int value;
  70                 return get(value) ? value : 0;
  71         }
  72 };
  73
  74 /**
  75  * \83t\83@\83C\83\8b\82©\82ç\82Ì\93Ç\82Ý\8d\9e\82Ý
  76  */
  77 class FileReader : public IReader
  78 {
  79         std::ifstream io_;
  80         unsigned int pos_;
  81         bool eof_;
  82
  83 public:
  84         FileReader(const char *path);
  85         virtual ~FileReader();
  86         virtual unsigned int read(char *buf, unsigned int size);
  87         virtual unsigned int getPos()const;
  88         virtual bool isEnd()const;
  89 };
  90
  91 /**
  92  * \83\81\83\82\83\8a\82©\82ç\82Ì\93Ç\82Ý\8d\9e\82Ý
  93  */
  94 class MemoryReader : public IReader
  95 {
  96         const char *buf_;
  97         unsigned int size_;
  98         unsigned int pos_;
  99
 100 public:
 101         MemoryReader(const char *buf, unsigned int size);
 102         virtual ~MemoryReader();
 103         virtual unsigned int read(char *buf, unsigned int size);
 104         virtual unsigned int getPos()const;
 105         virtual bool isEnd()const;
 106 };
 107
 108  void readAll(const char *path, std::vector<char> &all);
 109 #ifdef _WIN32
 110  void readAll(const wchar_t *path, std::vector<char> &all);
 111 #endif
 112
 113 /**
 114  * \83f\81[\83^\8f\91\82«\8d\9e\82Ý\83C\83\93\83^\81[\83t\83F\81[\83X
 115  */
 116 class IWriter
 117 {
 118 public:
 119         virtual ~IWriter(){}
 120         virtual void write(const char *buf, unsigned int size)=0;
 121         void printLn(const char *fmt, ...)
 122         {
 123                 char buf[1024];
 124                 va_list list;
 125                 va_start(list, fmt);
 126                 vsprintf(buf, fmt, list);
 127                 write(buf, strlen(buf));
 128                 write("\r\n", 2);
 129                 va_end(list);
 130         }
 131         template<typename T>
 132                 void writeArray(const T *array, size_t element_count)
 133                 {
 134                         write(
 135                                         reinterpret_cast<const char*>(array),
 136                                         sizeof(T)*element_count);
 137                 }
 138         template<typename T>
 139                 void writeValue(T value)
 140                 {
 141                         writeArray(&value, 1);
 142                 }
 143 };
 144
 145 class FileWriter : public IWriter
 146 {
 147         FILE *io_;
 148
 149 public:
 150         FileWriter(const char *path);
 151         virtual ~FileWriter();
 152         virtual void write(const char *buf, unsigned int size);
 153 };
 154
 155 } // namespace binary
 156 } // namespace meshio
 157
 158 #endif // MESH_IO_BINARY_H_INCLUDED