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// Compress/CopyCoder.cpp
#include "StdAfx.h"
#include "CopyCoder.h"
#include "../../../Common/Alloc.h"
#include "../../Common/StreamUtils.h"
namespace NCompress {
static const UInt32 kBufferSize = 1 << 17;
CCopyCoder::~CCopyCoder()
{
::MidFree(_buffer);
}
STDMETHODIMP CCopyCoder::Code(ISequentialInStream *inStream,
ISequentialOutStream *outStream,
const UInt64 *inSize, const UInt64 *outSize,
ICompressProgressInfo *progress)
{
if (_buffer == 0)
{
_buffer = (Byte *)::MidAlloc(kBufferSize);
if (_buffer == 0)
return E_OUTOFMEMORY;
}
TotalSize = 0;
while(true)
{
UInt32 realProcessedSize;
UInt32 size = kBufferSize;
if (outSize != 0)
if (size > *outSize - TotalSize)
size = (UInt32)(*outSize - TotalSize);
RINOK(inStream->Read(_buffer, size, &realProcessedSize));
if(realProcessedSize == 0)
break;
RINOK(WriteStream(outStream, _buffer, realProcessedSize, NULL));
TotalSize += realProcessedSize;
if (progress != NULL)
{
RINOK(progress->SetRatioInfo(&TotalSize, &TotalSize));
}
}
return S_OK;
}
}
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