mirror of https://github.com/snes9xgit/snes9x.git
61 lines
1.6 KiB
C++
61 lines
1.6 KiB
C++
/*
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Copyright (C) 2005-2006 NSRT Team ( http://nsrt.edgeemu.com )
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Copyright (C) 2002 Andrea Mazzoleni ( http://advancemame.sf.net )
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Copyright (C) 2001-4 Igor Pavlov ( http://www.7-zip.org )
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License version 2.1 as published by the Free Software Foundation.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "inbyte.h"
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namespace NStream{
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CInByte::CInByte(UINT32 aBufferSize):
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m_BufferBase(0),
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m_BufferSize(aBufferSize)
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{
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m_BufferBase = new BYTE[m_BufferSize];
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}
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CInByte::~CInByte()
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{
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delete []m_BufferBase;
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}
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void CInByte::Init(ISequentialInStream *aStream)
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{
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m_Stream = aStream;
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m_ProcessedSize = 0;
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m_Buffer = m_BufferBase;
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m_BufferLimit = m_Buffer;
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m_StreamWasExhausted = false;
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}
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bool CInByte::ReadBlock()
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{
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if (m_StreamWasExhausted)
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return false;
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m_ProcessedSize += (m_Buffer - m_BufferBase);
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UINT32 aNumProcessedBytes;
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HRESULT aResult = m_Stream->Read(m_BufferBase, m_BufferSize, &aNumProcessedBytes);
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if (aResult != S_OK)
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throw aResult;
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m_Buffer = m_BufferBase;
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m_BufferLimit = m_Buffer + aNumProcessedBytes;
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m_StreamWasExhausted = (aNumProcessedBytes == 0);
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return (!m_StreamWasExhausted);
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}
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}
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