| Octane v1.01.20 - The Open Compression Toolkit for C++ | http://octane.sourceforge.net/ |
00001 00002 00003 00004 00005 00006 00007 00008 00009 00010 00011 00012 00013 00014 00015 00016 00017 00018 00019 00020 00021 00022 00023 00024 00025 00026 00027 //--------------------------------------------------------------------------- 00028 00029 //--------------------------------------------------------------------------- 00030 // recursive header protection 00031 #ifndef SymbolWeightVectorH 00032 #define SymbolWeightVectorH 00033 //--------------------------------------------------------------------------- 00034 00035 //--------------------------------------------------------------------------- 00036 // application includes 00037 #include "../bitio/bitio.hpp" 00038 #include "../core/octaneclass.hpp" 00039 #include "../parsers/parser.hpp" 00040 // system includes 00041 using namespace std; 00042 #include <assert.h> 00043 //--------------------------------------------------------------------------- 00044 00045 00046 00047 //--------------------------------------------------------------------------- 00050 #define TSymbolWeightVectorWeight float 00051 // typedef float TSymbolWeightVectorWeight; 00052 //--------------------------------------------------------------------------- 00053 00054 00055 00056 //--------------------------------------------------------------------------- 00061 class SymbolWeightVector : public OctaneClass 00062 { 00063 protected: 00065 int symbolcount; 00067 vector<TSymbolWeightVectorWeight> weightvector; 00068 public: 00070 SymbolWeightVector() { symbolcount=0; } 00072 virtual ~SymbolWeightVector() { ; } 00073 public: 00074 //--------------------------------------------------------------------------- 00075 // OCTANE PUBLIC API - RTTI FUNCTIONS - these are supported by all derived classes 00076 virtual std::string GetName() {return "SymbolWeightVector";} 00077 virtual std::string GetDescription() {return "Symbol Weight Vector";} 00078 virtual std::string GetHelpInformation() {return "";} 00079 //--------------------------------------------------------------------------- 00080 public: 00081 //--------------------------------------------------------------------------- 00082 // OCTANE PUBLIC API - AUXILIARY FUNCTIONS - these are supported by all derived classes 00083 virtual void ShowDebuggingInfo(); 00084 virtual unsigned int GetMemoryUsed(); 00085 virtual unsigned int GetDiskspaceUsed(bool fortempdecompressiononly); 00086 virtual bool SaveState(bitwriter &to,bool fortempdecompressiononly); 00087 virtual bool LoadState(bitreader &from); 00088 //--------------------------------------------------------------------------- 00089 public: 00090 //--------------------------------------------------------------------------- 00091 // SYMBOLWEIGHTVECTOR PUBLIC API - SYMBOL ACCESS 00093 void ResetWeights(); 00095 void NormalizeToProbabilityDistribution(); 00097 void SetSymbolCount(int newsize); 00099 int GetSymbolCount() {return symbolcount;}; 00101 TSymbolWeightVectorWeight GetSymbolWeight(int index) {assert(index<symbolcount);return weightvector[index];}; 00103 void SetSymbolWeight(int index,TSymbolWeightVectorWeight weight) {assert(index<symbolcount);weightvector[index]=weight;}; 00105 void IncremementSymbolWeight(int index) {assert(index<symbolcount);weightvector[index]+=1;}; 00109 bool CountSymbolFrequencies(OctaneParser *parserp, bitreader &from); 00112 void EnforceZeroCountFloor(TSymbolWeightVectorWeight symbolfloorval); 00113 //--------------------------------------------------------------------------- 00114 }; 00115 //--------------------------------------------------------------------------- 00116 00117 00118 00119 //--------------------------------------------------------------------------- 00120 #endif 00121 //--------------------------------------------------------------------------- 00122