00001
00002 #ifndef INCLUDED_LoadSave_h
00003 #define INCLUDED_LoadSave_h
00004
00005 #include <string>
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00107 class LoadSave {
00108 public:
00109
00110 static const unsigned int stringpad=sizeof(unsigned int)+1;
00111
00112
00113
00114 LoadSave() {}
00115 LoadSave(const char* filename) { LoadFile(filename); }
00116 virtual ~LoadSave();
00117
00118
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00125
00126 virtual unsigned int getBinSize() const =0;
00127
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00130
00131 virtual unsigned int LoadBuffer(const char buf[], unsigned int len)=0;
00132
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00136 virtual unsigned int SaveBuffer(char buf[], unsigned int len) const =0;
00137
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00143 virtual unsigned int LoadFile(const char* filename);
00144 virtual unsigned int SaveFile(const char* filename) const;
00145
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00153 virtual unsigned int LoadFileStream(FILE* f);
00154
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00161 virtual unsigned int SaveFileStream(FILE* f) const;
00162
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00168
00169 virtual unsigned int creatorSize(const char creator[]) const { return strlen(creator)+stringpad; }
00170
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00175
00176 virtual unsigned int checkCreator(const char* creator, const char buf[], unsigned int len, bool isLoading=true) const;
00177
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00182 virtual unsigned int checkCreator(const char* creator, FILE* f, bool isLoading=true) const;
00183
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00187
00188 virtual unsigned int saveCreator(const char* creator, char buf[], unsigned int len) const;
00189
00190
00191
00192
00193 virtual unsigned int saveCreator(const char* creator, FILE* f) const;
00194
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00205
00206 inline static unsigned int encode(const LoadSave& x, char buf[], unsigned int cap) { return x.SaveBuffer(buf,cap); }
00207 inline static unsigned int decode(LoadSave& x, const char buf[], unsigned int cap) { return x.LoadBuffer(buf,cap); }
00208 inline static unsigned int encode(const LoadSave& x, FILE* f) { return x.SaveFileStream(f); }
00209 inline static unsigned int decode(LoadSave& x, FILE* f) { return x.LoadFileStream(f); }
00210
00211
00212
00213
00214 #ifdef LOADSAVE_SWAPBYTES
00215
00216 inline static unsigned int encode(const double x, char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; byteswap(*(double*)buf,x); return sizeof(x); }
00217 inline static unsigned int decode(double& x, const char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; byteswap(x,*(const double*)buf); return sizeof(x);}
00218 inline static unsigned int encode(const double x, FILE* f) { double t=0; byteswap(t,x); return sizeof(x)*fwrite(&t,sizeof(x),1,f); }
00219 inline static unsigned int decode(double& x, FILE* f) { double t=0; if(fread(&t,sizeof(x),1,f)==0) return 0; byteswap(x,t); return sizeof(x);}
00220
00221 inline static unsigned int encode(const float x, char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; byteswap(*(float*)buf,x); return sizeof(x); }
00222 inline static unsigned int decode(float& x, const char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; byteswap(x,*(const float*)buf); return sizeof(x);}
00223 inline static unsigned int encode(const float x, FILE* f) { float t=0; byteswap(t,x); return sizeof(x)*fwrite(&t,sizeof(x),1,f); }
00224 inline static unsigned int decode(float& x, FILE* f) { float t=0; if(fread(&t,sizeof(x),1,f)==0) return 0; byteswap(x,t); return sizeof(x);}
00225
00226 inline static unsigned int encode(const long x, char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; byteswap(*(long*)buf,x); return sizeof(x); }
00227 inline static unsigned int decode(long& x, const char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; byteswap(x,*(const long*)buf); return sizeof(x);}
00228 inline static unsigned int encode(const long x, FILE* f) { long t=0; byteswap(t,x); return sizeof(x)*fwrite(&t,sizeof(x),1,f); }
00229 inline static unsigned int decode(long& x, FILE* f) { long t=0; if(fread(&t,sizeof(x),1,f)==0) return 0; byteswap(x,t); return sizeof(x);}
00230 inline static unsigned int encode(const unsigned long x, char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; byteswap(*(unsigned long*)buf,x); return sizeof(x); }
00231 inline static unsigned int decode(unsigned long& x, const char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; byteswap(x,*(const unsigned long*)buf); return sizeof(x);}
00232 inline static unsigned int encode(const unsigned long x, FILE* f) { unsigned long t=0; byteswap(t,x); return sizeof(x)*fwrite(&t,sizeof(x),1,f); }
00233 inline static unsigned int decode(unsigned long& x, FILE* f) { unsigned long t=0; if(fread(&t,sizeof(x),1,f)==0) return 0; byteswap(x,t); return sizeof(x);}
00234 inline static unsigned int encode(const int x, char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; byteswap(*(int*)buf,x); return sizeof(x); }
00235 inline static unsigned int decode(int& x, const char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; byteswap(x,*(const int*)buf); return sizeof(x);}
00236 inline static unsigned int encode(const int x, FILE* f) { int t=0; byteswap(t,x); return sizeof(x)*fwrite(&t,sizeof(x),1,f); }
00237 inline static unsigned int decode(int& x, FILE* f) { int t=0; if(fread(&t,sizeof(x),1,f)==0) return 0; byteswap(x,t); return sizeof(x);}
00238 inline static unsigned int encode(const unsigned int x, char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; byteswap(*(unsigned int*)buf,x); return sizeof(x); }
00239 inline static unsigned int decode(unsigned int& x, const char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; byteswap(x,*(const unsigned int*)buf); return sizeof(x);}
00240 inline static unsigned int encode(const unsigned int x, FILE* f) { unsigned int t=0; byteswap(t,x); return sizeof(x)*fwrite(&t,sizeof(x),1,f); }
00241 inline static unsigned int decode(unsigned int& x, FILE* f) { unsigned int t=0; if(fread(&t,sizeof(x),1,f)==0) return 0; byteswap(x,t); return sizeof(x);}
00242
00243 inline static unsigned int encode(const short x, char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; byteswap(*(short*)buf,x); return sizeof(x); }
00244 inline static unsigned int decode(short& x, const char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; byteswap(x,*(const short*)buf); return sizeof(x);}
00245 inline static unsigned int encode(const short x, FILE* f) { short t; byteswap(t,x); return sizeof(x)*fwrite(&t,sizeof(x),1,f); }
00246 inline static unsigned int decode(short& x, FILE* f) { short t=0; if(fread(&t,sizeof(x),1,f)==0) return 0; byteswap(x,t); return sizeof(x);}
00247 inline static unsigned int encode(const unsigned short x, char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; byteswap(*(unsigned short*)buf,x); return sizeof(x); }
00248 inline static unsigned int decode(unsigned short& x, const char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; byteswap(x,*(const unsigned short*)buf); return sizeof(x);}
00249 inline static unsigned int encode(const unsigned short x, FILE* f) { unsigned short t; byteswap(t,x); return sizeof(x)*fwrite(&t,sizeof(x),1,f); }
00250 inline static unsigned int decode(unsigned short& x, FILE* f) { unsigned short t=0; if(fread(&t,sizeof(x),1,f)==0) return 0; byteswap(x,t); return sizeof(x);}
00251
00252 #else
00253
00254 inline static unsigned int encode(const double x, char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; memcpy(buf,&x,sizeof(x)); return sizeof(x); }
00255 inline static unsigned int decode(double& x, const char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; memcpy(&x,buf,sizeof(x)); return sizeof(x); }
00256 inline static unsigned int encode(const double x, FILE* f) { return sizeof(x)*fwrite(&x,sizeof(x),1,f); }
00257 inline static unsigned int decode(double& x, FILE* f) { return sizeof(x)*fread(&x,sizeof(x),1,f); }
00258
00259 inline static unsigned int encode(const float x, char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; memcpy(buf,&x,sizeof(x)); return sizeof(x); }
00260 inline static unsigned int decode(float& x, const char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; memcpy(&x,buf,sizeof(x)); return sizeof(x); }
00261 inline static unsigned int encode(const float x, FILE* f) { return sizeof(x)*fwrite(&x,sizeof(x),1,f); }
00262 inline static unsigned int decode(float& x, FILE* f) { return sizeof(x)*fread(&x,sizeof(x),1,f); }
00263
00264 inline static unsigned int encode(const long x, char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; memcpy(buf,&x,sizeof(x)); return sizeof(x); }
00265 inline static unsigned int decode(long& x, const char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; memcpy(&x,buf,sizeof(x)); return sizeof(x); }
00266 inline static unsigned int encode(const long x, FILE* f) { return sizeof(x)*fwrite(&x,sizeof(x),1,f); }
00267 inline static unsigned int decode(long& x, FILE* f) { return sizeof(x)*fread(&x,sizeof(x),1,f); }
00268 inline static unsigned int encode(const unsigned long x, char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; memcpy(buf,&x,sizeof(x)); return sizeof(x); }
00269 inline static unsigned int decode(unsigned long& x, const char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; memcpy(&x,buf,sizeof(x)); return sizeof(x); }
00270 inline static unsigned int encode(const unsigned long x, FILE* f) { return sizeof(x)*fwrite(&x,sizeof(x),1,f); }
00271 inline static unsigned int decode(unsigned long& x, FILE* f) { return sizeof(x)*fread(&x,sizeof(x),1,f); }
00272 inline static unsigned int encode(const int x, char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; memcpy(buf,&x,sizeof(x)); return sizeof(x); }
00273 inline static unsigned int decode(int& x, const char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; memcpy(&x,buf,sizeof(x)); return sizeof(x); }
00274 inline static unsigned int encode(const int x, FILE* f) { return sizeof(x)*fwrite(&x,sizeof(x),1,f); }
00275 inline static unsigned int decode(int& x, FILE* f) { return sizeof(x)*fread(&x,sizeof(x),1,f); }
00276 inline static unsigned int encode(const unsigned int x, char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; memcpy(buf,&x,sizeof(x)); return sizeof(x); }
00277 inline static unsigned int decode(unsigned int& x, const char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; memcpy(&x,buf,sizeof(x)); return sizeof(x); }
00278 inline static unsigned int encode(const unsigned int x, FILE* f) { return sizeof(x)*fwrite(&x,sizeof(x),1,f); }
00279 inline static unsigned int decode(unsigned int& x, FILE* f) { return sizeof(x)*fread(&x,sizeof(x),1,f); }
00280
00281 inline static unsigned int encode(const short x, char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; memcpy(buf,&x,sizeof(x)); return sizeof(x); }
00282 inline static unsigned int decode(short& x, const char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; memcpy(&x,buf,sizeof(x)); return sizeof(x); }
00283 inline static unsigned int encode(const short x, FILE* f) { return sizeof(x)*fwrite(&x,sizeof(x),1,f); }
00284 inline static unsigned int decode(short& x, FILE* f) { return sizeof(x)*fread(&x,sizeof(x),1,f); }
00285 inline static unsigned int encode(const unsigned short x, char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; memcpy(buf,&x,sizeof(x)); return sizeof(x); }
00286 inline static unsigned int decode(unsigned short& x, const char buf[], unsigned int cap){ if(cap<sizeof(x)) return 0; memcpy(&x,buf,sizeof(x)); return sizeof(x); }
00287 inline static unsigned int encode(const unsigned short x, FILE* f) { return sizeof(x)*fwrite(&x,sizeof(x),1,f); }
00288 inline static unsigned int decode(unsigned short& x, FILE* f) { return sizeof(x)*fread(&x,sizeof(x),1,f); }
00289
00290 #endif //end of big/little endian differences
00291
00292 inline static unsigned int encode(const std::string& x, char buf[], unsigned int cap) { if(cap<sizeof(unsigned int)+x.size()+1) return 0; memcpy(buf+encode(x.size(),buf,cap),x.c_str(),x.size()+1); return x.size()+stringpad; }
00293 inline static unsigned int decode(std::string& x, const char buf[], unsigned int cap) { if(cap<sizeof(unsigned int)) return 0; unsigned int sz=0; decode(sz,buf,cap); if(cap<sizeof(unsigned int)+sz+1) return 0; x.assign(buf+sizeof(unsigned int),sz); return x.size()+stringpad; }
00294 inline static unsigned int encode(const std::string& x, FILE* f) { encode(x.size(),f); return sizeof(unsigned int)+fwrite(x.c_str(),1,sizeof(x)+1,f); }
00295 inline static unsigned int decode(std::string& x, FILE* f) { unsigned int sz=0; decode(sz,f); char *tmp=new char[sz+1]; if(fread(tmp,1,sz+1,f)!=sz+1) { delete [] tmp; return 0; } x.assign(tmp,sz); delete [] tmp; return sz+stringpad; }
00296
00297 inline static unsigned int encode(const char* x, char buf[], unsigned int cap) { unsigned int sz=strlen(x); if(cap<sizeof(unsigned int)+sz+1) return 0; memcpy(buf+encode(sz,buf,cap),x,sz+1); return sz+stringpad; }
00298 inline static unsigned int decode(char*& x, const char buf[], unsigned int cap) { if(cap<sizeof(unsigned int)) return 0; unsigned int sz=0; decode(sz,buf,cap); if(cap<sizeof(unsigned int)+sz+1) return 0; x=new char[sz+1]; strncpy(x,buf+sizeof(unsigned int),sz+1); return sz+stringpad; }
00299 inline static unsigned int encode(const char* x, FILE* f) { unsigned int sz=strlen(x); encode(sz,f); return sizeof(unsigned int)+fwrite(x,1,sz+1,f); }
00300 inline static unsigned int decode(char*& x, FILE* f) { unsigned int sz=0; decode(sz,f); x=new char[sz+1]; if(fread(x,1,sz+1,f)!=sz+1) { delete [] x; x=NULL; return 0; } return sz+stringpad; }
00301
00302 inline static unsigned int encode(const char x, char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; buf[0]=x; return sizeof(x); }
00303 inline static unsigned int decode(char& x, const char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; x=buf[0]; return sizeof(x);}
00304 inline static unsigned int encode(const char x, FILE* f) { return sizeof(x)*fwrite(&x,sizeof(x),1,f); }
00305 inline static unsigned int decode(char& x, FILE* f) { return sizeof(x)*fread(&x,sizeof(x),1,f); }
00306 inline static unsigned int encode(const unsigned char x, char buf[], unsigned int cap) { if(cap<sizeof(x)) return 0; buf[0]=(char)x; return sizeof(x); }
00307 inline static unsigned int decode(unsigned char& x, const char buf[], unsigned int cap){ if(cap<sizeof(x)) return 0; x=(unsigned char)buf[0]; return sizeof(x);}
00308 inline static unsigned int encode(const unsigned char x, FILE* f) { return sizeof(x)*fwrite(&x,sizeof(x),1,f); }
00309 inline static unsigned int decode(unsigned char& x, FILE* f) { return sizeof(x)*fread(&x,sizeof(x),1,f); }
00310
00311 inline static unsigned int encode(const bool x, char buf[], unsigned int cap) { if(cap<sizeof(char)) return 0; buf[0]=(char)(x?1:0); return sizeof(char); }
00312 inline static unsigned int decode(bool& x, const char buf[], unsigned int cap) { if(cap<sizeof(char)) return 0; x=(buf[0]!=(char)0); return sizeof(char);}
00313 inline static unsigned int encode(const bool x, FILE* f) { char t=(char)(x?1:0); return sizeof(char)*fwrite(&t,sizeof(char),1,f); }
00314 inline static unsigned int decode(bool& x, FILE* f) { char t='\0'; fread(&t,sizeof(char),1,f); x=(t!=(char)0); return sizeof(char); }
00315
00316 protected:
00317
00318 template<class T> inline static void byteswap(T& dstc, const T& srcc) {
00319 char* dst=(char*)&dstc;
00320 const char* src=(const char*)&srcc;
00321 for(unsigned int i=0; i<sizeof(T); i++)
00322 dst[sizeof(T)-1-i]=src[i];
00323 }
00324 };
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00339 #endif