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46 lines
1.3 KiB
C++
46 lines
1.3 KiB
C++
#ifndef MXDSFILE_H
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#define MXDSFILE_H
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#include "mxdssource.h"
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#include "mxioinfo.h"
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#include "mxstring.h"
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class MxDSFile : public MxDSSource
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{
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public:
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__declspec(dllexport) MxDSFile(const char *filename, unsigned long skipReadingChunks);
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__declspec(dllexport) virtual ~MxDSFile(); // vtable+0x0
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__declspec(dllexport) virtual long Open(unsigned long); // vtable+0x14
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__declspec(dllexport) virtual long Close(); // vtable+0x18
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__declspec(dllexport) virtual long Read(unsigned char *,unsigned long); // vtable+0x20
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__declspec(dllexport) virtual long Seek(long,int); // vtable+0x24
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__declspec(dllexport) virtual unsigned long GetBufferSize(); // vtable+0x28
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__declspec(dllexport) virtual unsigned long GetStreamBuffersNum(); // vtable+0x2c
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private:
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long ReadChunks();
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struct ChunkHeader {
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ChunkHeader()
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: majorVersion(0)
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, minorVersion(0)
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, bufferSize(0)
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, streamBuffersNum(0)
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{}
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unsigned short majorVersion;
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unsigned short minorVersion;
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unsigned long bufferSize;
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short streamBuffersNum;
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short reserved;
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};
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MxString m_filename;
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MXIOINFO m_io;
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ChunkHeader m_header;
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// If false, read chunks immediately on open, otherwise
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// skip reading chunks until ReadChunks is explicitly called.
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unsigned long m_skipReadingChunks;
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};
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#endif // MXDSFILE_H
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