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https://github.com/bsnes-emu/bsnes.git
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9ca1e259cb
A thank you to everyone who helped test the RC to ensure stability. I've uploaded the official v064 release to Google Code. The most important change in this release is the cycle-based PPU renderer; but due to performance reasons the scanline-based renderer remains the default in the Windows binary. If you want to try out the cycle-based renderer, you will need to compile from source for now. Another major change is the introduction of libsnes, which allows one to build bsnes as a shared library that can be used from other programming languages. It is intended both to create a regression testing framework, and to provide API stability for the various projects that use the bsnes core. While I can't guarantee the API to libsnes won't change, I will properly revision it and do everything I can to avoid changing it if possible.
89 lines
2.3 KiB
C++
89 lines
2.3 KiB
C++
/*
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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 "winout.h"
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namespace NStream {
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namespace NWindow {
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void COut::Create(UINT32 aKeepSizeBefore, UINT32 aKeepSizeAfter, UINT32 aKeepSizeReserv)
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{
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m_Pos = 0;
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m_PosLimit = aKeepSizeReserv + aKeepSizeBefore;
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m_KeepSizeBefore = aKeepSizeBefore;
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m_KeepSizeAfter = aKeepSizeAfter;
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m_KeepSizeReserv = aKeepSizeReserv;
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m_StreamPos = 0;
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m_MoveFrom = m_KeepSizeReserv;
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m_WindowSize = aKeepSizeBefore;
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UINT32 aBlockSize = m_KeepSizeBefore + m_KeepSizeAfter + m_KeepSizeReserv;
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delete []m_Buffer;
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m_Buffer = new BYTE[aBlockSize];
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}
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COut::~COut()
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{
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delete []m_Buffer;
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}
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void COut::SetWindowSize(UINT32 aWindowSize)
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{
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m_WindowSize = aWindowSize;
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m_MoveFrom = m_KeepSizeReserv + m_KeepSizeBefore - aWindowSize;
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}
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void COut::Init(ISequentialOutStream *aStream, bool aSolid)
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{
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m_Stream = aStream;
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if(aSolid)
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m_StreamPos = m_Pos;
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else
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{
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m_Pos = 0;
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m_PosLimit = m_KeepSizeReserv + m_KeepSizeBefore;
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m_StreamPos = 0;
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}
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}
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HRESULT COut::Flush()
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{
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UINT32 aSize = m_Pos - m_StreamPos;
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if(aSize == 0)
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return S_OK;
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UINT32 aProcessedSize;
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HRESULT aResult = m_Stream->Write(m_Buffer + m_StreamPos, aSize, &aProcessedSize);
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if (aResult != S_OK)
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return aResult;
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if (aSize != aProcessedSize)
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return E_FAIL;
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m_StreamPos = m_Pos;
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return S_OK;
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}
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void COut::MoveBlockBackward()
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{
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HRESULT aResult = Flush();
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if (aResult != S_OK)
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throw aResult;
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memmove(m_Buffer, m_Buffer + m_MoveFrom, m_WindowSize + m_KeepSizeAfter);
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m_Pos -= m_MoveFrom;
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m_StreamPos -= m_MoveFrom;
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}
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}}
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