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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 virtual ~LoadSave();
00116
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00124
00125 virtual unsigned int getBinSize() const =0;
00126
00127
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00129
00130 virtual unsigned int LoadBuffer(const char buf[], unsigned int len)=0;
00131
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00134
00135 virtual unsigned int SaveBuffer(char buf[], unsigned int len) const =0;
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00142 virtual unsigned int LoadFile(const char* filename);
00143 virtual unsigned int SaveFile(const char* filename) const;
00144
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00152 virtual unsigned int LoadFileStream(FILE* f);
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00160 virtual unsigned int SaveFileStream(FILE* f) const;
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00168
00169 static bool ChkAdvance(int res, const char** buf, unsigned int* len, const char* msg);
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00180 static bool ChkAdvance(int res, const char** buf, unsigned int* len, const char* msg, int arg1);
00181
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00187
00188 virtual unsigned int creatorSize(const char creator[]) const { return strlen(creator)+stringpad; }
00189
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00194
00195 virtual unsigned int checkCreator(const char* creator, const char buf[], unsigned int len, bool isLoading=true) const;
00196
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00200
00201 virtual unsigned int checkCreator(const char* creator, FILE* f, bool isLoading=true) const;
00202
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00207 virtual unsigned int saveCreator(const char* creator, char buf[], unsigned int len) const;
00208
00209
00210
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00212 virtual unsigned int saveCreator(const char* creator, FILE* f) const;
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00224
00225 inline static unsigned int encode(const LoadSave& x, char buf[], unsigned int cap) { return x.SaveBuffer(buf,cap); }
00226 inline static unsigned int decode(LoadSave& x, const char buf[], unsigned int cap) { return x.LoadBuffer(buf,cap); }
00227 inline static unsigned int encode(const LoadSave& x, FILE* f) { return x.SaveFileStream(f); }
00228 inline static unsigned int decode(LoadSave& x, FILE* f) { return x.LoadFileStream(f); }
00229
00230
00231
00232
00233 #ifdef LOADSAVE_SWAPBYTES
00234
00235 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); }
00236 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);}
00237 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); }
00238 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);}
00239
00240 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); }
00241 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);}
00242 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); }
00243 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);}
00244
00245 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); }
00246 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);}
00247 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); }
00248 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);}
00249 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); }
00250 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);}
00251 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); }
00252 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);}
00253 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); }
00254 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);}
00255 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); }
00256 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);}
00257 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); }
00258 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);}
00259 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); }
00260 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);}
00261
00262 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); }
00263 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);}
00264 inline static unsigned int encode(const short x, FILE* f) { short t; byteswap(t,x); return sizeof(x)*fwrite(&t,sizeof(x),1,f); }
00265 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);}
00266 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); }
00267 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);}
00268 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); }
00269 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);}
00270
00271 #else
00272
00273 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); }
00274 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); }
00275 inline static unsigned int encode(const double x, FILE* f) { return sizeof(x)*fwrite(&x,sizeof(x),1,f); }
00276 inline static unsigned int decode(double& x, FILE* f) { return sizeof(x)*fread(&x,sizeof(x),1,f); }
00277
00278 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); }
00279 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); }
00280 inline static unsigned int encode(const float x, FILE* f) { return sizeof(x)*fwrite(&x,sizeof(x),1,f); }
00281 inline static unsigned int decode(float& x, FILE* f) { return sizeof(x)*fread(&x,sizeof(x),1,f); }
00282
00283 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); }
00284 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); }
00285 inline static unsigned int encode(const long x, FILE* f) { return sizeof(x)*fwrite(&x,sizeof(x),1,f); }
00286 inline static unsigned int decode(long& x, FILE* f) { return sizeof(x)*fread(&x,sizeof(x),1,f); }
00287 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); }
00288 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); }
00289 inline static unsigned int encode(const unsigned long x, FILE* f) { return sizeof(x)*fwrite(&x,sizeof(x),1,f); }
00290 inline static unsigned int decode(unsigned long& x, FILE* f) { return sizeof(x)*fread(&x,sizeof(x),1,f); }
00291 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); }
00292 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); }
00293 inline static unsigned int encode(const int x, FILE* f) { return sizeof(x)*fwrite(&x,sizeof(x),1,f); }
00294 inline static unsigned int decode(int& x, FILE* f) { return sizeof(x)*fread(&x,sizeof(x),1,f); }
00295 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); }
00296 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); }
00297 inline static unsigned int encode(const unsigned int x, FILE* f) { return sizeof(x)*fwrite(&x,sizeof(x),1,f); }
00298 inline static unsigned int decode(unsigned int& x, FILE* f) { return sizeof(x)*fread(&x,sizeof(x),1,f); }
00299
00300 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); }
00301 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); }
00302 inline static unsigned int encode(const short x, FILE* f) { return sizeof(x)*fwrite(&x,sizeof(x),1,f); }
00303 inline static unsigned int decode(short& x, FILE* f) { return sizeof(x)*fread(&x,sizeof(x),1,f); }
00304 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); }
00305 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); }
00306 inline static unsigned int encode(const unsigned short x, FILE* f) { return sizeof(x)*fwrite(&x,sizeof(x),1,f); }
00307 inline static unsigned int decode(unsigned short& x, FILE* f) { return sizeof(x)*fread(&x,sizeof(x),1,f); }
00308
00309 #endif //end of big/little endian differences
00310
00311 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; }
00312 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; }
00313 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); }
00314 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; }
00315
00316 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; }
00317 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; }
00318 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); }
00319 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; }
00320
00321 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); }
00322 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);}
00323 inline static unsigned int encode(const char x, FILE* f) { return sizeof(x)*fwrite(&x,sizeof(x),1,f); }
00324 inline static unsigned int decode(char& x, FILE* f) { return sizeof(x)*fread(&x,sizeof(x),1,f); }
00325 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); }
00326 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);}
00327 inline static unsigned int encode(const unsigned char x, FILE* f) { return sizeof(x)*fwrite(&x,sizeof(x),1,f); }
00328 inline static unsigned int decode(unsigned char& x, FILE* f) { return sizeof(x)*fread(&x,sizeof(x),1,f); }
00329
00330 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); }
00331 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);}
00332 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); }
00333 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); }
00334
00335 protected:
00336
00337 template<class T> inline static void byteswap(T& dstc, const T& srcc) {
00338 char* dst=(char*)&dstc;
00339 const char* src=(const char*)&srcc;
00340 for(unsigned int i=0; i<sizeof(T); i++)
00341 dst[sizeof(T)-1-i]=src[i];
00342 }
00343 };
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00358 #endif