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41 lines
746 B
C++
41 lines
746 B
C++
#include "StdInc.h"
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#include "CMemoryStream.h"
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CMemoryStream::CMemoryStream(const ui8 * data, si64 size) :
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data(data), size(size), position(0)
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{
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}
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si64 CMemoryStream::read(ui8 * data, si64 size)
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{
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si64 toRead = std::min(this->size - tell(), size);
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std::copy(this->data + position, this->data + position + toRead, data);
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position += size;
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return toRead;
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}
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si64 CMemoryStream::seek(si64 position)
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{
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si64 origin = tell();
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this->position = std::min(position, size);
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return tell() - origin;
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}
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si64 CMemoryStream::tell()
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{
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return this->position;
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}
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si64 CMemoryStream::skip(si64 delta)
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{
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si64 origin = tell();
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this->position += std::min(size - origin, delta);
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return tell() - origin;
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}
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si64 CMemoryStream::getSize()
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{
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return size;
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}
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