CWE-ou-minkata/Sources/Plasma/CoreLib/hsSTLStream.h

/*==LICENSE==*

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*==LICENSE==*/
#include "hsStream.h"
#include "hsStlUtils.h"

//
// In-memory only
// Erase function lets you cut a chunk out of the middle of the stream
//
class hsVectorStream : public hsStream
{
protected:
    std::vector<uint8_t> fVector;
    uint32_t fEnd;    // End of file (one past the last byte)

public:
    hsVectorStream();
    hsVectorStream(uint32_t chunkSize);
    virtual ~hsVectorStream();

    virtual bool      Open(const char *, const char *)    { hsAssert(0, "hsVectorStream::Open Not Implemented"); return false; }
    virtual bool      Open(const wchar_t *, const wchar_t *)  { hsAssert(0, "hsVectorStream::Open Not Implemented"); return false; }
    virtual bool      Close()             { hsAssert(0, "hsVectorStream::Close Not Implemented"); return false; }
    
    virtual bool      AtEnd();
    virtual uint32_t  Read(uint32_t byteCount, void * buffer);
    virtual uint32_t  Write(uint32_t byteCount, const void* buffer);
    virtual void      Skip(uint32_t deltaByteCount);
    virtual void      Rewind();
    virtual void      FastFwd();
    virtual void      Truncate();

    virtual uint32_t  GetEOF();
    virtual void    CopyToMem(void* mem);

    virtual void    Reset();        // clears the buffers

    // Erase number of bytes at the current position
    virtual void    Erase(uint32_t bytes);
    // A pointer to the beginning of the data in the stream.  This is only valid
    // until someone modifies the stream.
    const void      *GetData();
    // In case you want to try and be efficient with your memory allocations
    void Reserve(uint32_t bytes) { fVector.reserve(bytes); }
};