dynamic_memoryblock.h

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#pragma once
 
#include <adtf_base.h>
 
namespace adtf
{
 
namespace disptb
{
 
namespace graphicslib
{
 
namespace dengar
{
 
class IDynamicMemoryBlock
{
public:
    virtual tResult Append(const tVoid* pvData, tInt nDataSize) = 0;
 
    virtual tVoid* GetPtr() = 0;
 
    virtual tSize GetSize() = 0;
 
    virtual tResult Reset() = 0;
 
    virtual tResult SetIncrement(tInt nNewIncrement) = 0;
 
    virtual tVoid Destroy() = 0;
 
protected:
    ~IDynamicMemoryBlock()
    {}
};
 
class cDynamicMemoryBlock : public IDynamicMemoryBlock
{
 
    A_UTILS_D(cDynamicMemoryBlock);
 
public:
    cDynamicMemoryBlock();
 
    virtual ~cDynamicMemoryBlock();
 
public: // implements IDynamicMemoryBlock
 
    tResult Append(const tVoid* pvData, tInt nDataSize);
 
    tVoid* GetPtr();
 
    tSize GetSize();
 
    tResult Reset();
 
    tResult SetIncrement(tInt nNewIncrement);
 
    tVoid Destroy();
 
protected:
    util::cMemoryBlock* m_pData;
    tUInt32 m_ui32BlockSize;
    tUInt32 m_ui32BlockIncrement;
    tUInt32 m_ui32UsedSize;
 
private:
    tResult AdjustMemoryBlock(tInt nBytesToAppend);
};
 
}
using dengar::IDynamicMemoryBlock;
using dengar::cDynamicMemoryBlock;
 
}
 
}
 
}