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//////////////////////////////////////////////////////////////////////////////
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//文件: SegY文件操作类
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//主要功能:
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//
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//程序编写: 2011-4-1
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//
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//
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/////////////////////////////////////////////////////////////////////////////
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#pragma once
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namespace NCube
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{
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/*!\brief Raw binary data access. */
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class AFX_EXT_CLASS CDataBuffer
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{
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public:
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CDataBuffer(void);
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~CDataBuffer(void);
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inline bool IsEmpty() const;
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inline int GetCount() const { return m_nSampleNum; }
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inline int GetBytesPerSample() { return m_nSampleBytes; }
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inline int GetBytesLength() { return m_nSampleNum * m_nSampleBytes; }
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inline BYTE* GetData() { return m_pData; }
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inline short* GetDataShort() { return (short*)GetData(); }
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inline long * GetDataLong() { return (long*)GetData(); }
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inline float* GetDataFloat() { return (float*)GetData(); }
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inline char * GetDataChar() { return (char*)GetData(); }
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inline double* GetDataDouble() { return (double*)GetData(); }
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inline BYTE* GetData(int nIndex) {return m_pData + (nIndex*m_nSampleBytes);}//返回第nIndex个数据索引指针 0<nIndex<m_nSampleNum
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CDataBuffer& operator=(CDataBuffer& dbf);
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//绑定数据，并不自动释放已申请空间，将直接替换m_pData, 需要提前释放时可外部调用Clear
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void Attach(BYTE* pData, int nSampleNum, int nSampleBytes);
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BYTE* Detach(void); //返回数据指针，将内部置空
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virtual void Create(int num, int samBytes);
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virtual void Clear(void);
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void Resize(int num, int samBytes, bool copydata=true);
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void Zero(void); //设置数据为0
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protected:
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int m_nSampleBytes; //每个采样点的字节长度
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int m_nSampleNum; //采样点个数
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BYTE* m_pData; //数据存放指针
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};
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}
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using namespace NCube; |