mirror of
https://github.com/libretro/snes9x.git
synced 2024-11-30 12:00:35 +00:00
133 lines
3.8 KiB
C++
133 lines
3.8 KiB
C++
/*
|
|
Copyright (C) 2005-2006 NSRT Team ( http://nsrt.edgeemu.com )
|
|
Copyright (C) 2002 Andrea Mazzoleni ( http://advancemame.sf.net )
|
|
Copyright (C) 2001-4 Igor Pavlov ( http://www.7-zip.org )
|
|
|
|
This library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License version 2.1 as published by the Free Software Foundation.
|
|
|
|
This library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with this library; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#include "portable.h"
|
|
#include "iiostrm.h"
|
|
#include "crc32.h"
|
|
|
|
HRESULT ISequentialInStream_Array::Read(void *aData, UINT32 aSize, UINT32 *aProcessedSize)
|
|
{
|
|
if (aSize > size)
|
|
{
|
|
aSize = size;
|
|
}
|
|
|
|
*aProcessedSize = aSize;
|
|
memcpy(aData, data, aSize);
|
|
size -= aSize;
|
|
data += aSize;
|
|
return(S_OK);
|
|
}
|
|
|
|
HRESULT ISequentialOutStream_Array::Write(const void *aData, UINT32 aSize, UINT32 *aProcessedSize)
|
|
{
|
|
if (aSize > size)
|
|
{
|
|
overflow = true;
|
|
aSize = size;
|
|
}
|
|
|
|
*aProcessedSize = aSize;
|
|
memcpy(data, aData, aSize);
|
|
size -= aSize;
|
|
data += aSize;
|
|
total += aSize;
|
|
return(S_OK);
|
|
}
|
|
|
|
HRESULT ISequentialInStream_String::Read(void *aData, UINT32 aSize, UINT32 *aProcessedSize)
|
|
{
|
|
if (aSize > data.size())
|
|
{
|
|
aSize = data.size();
|
|
}
|
|
|
|
*aProcessedSize = aSize;
|
|
memcpy(aData, data.c_str(), aSize);
|
|
data.erase(0, aSize);
|
|
return(S_OK);
|
|
}
|
|
|
|
HRESULT ISequentialOutStream_String::Write(const void *aData, UINT32 aSize, UINT32 *aProcessedSize)
|
|
{
|
|
*aProcessedSize = aSize;
|
|
data.append((const char *)aData, aSize);
|
|
total += aSize;
|
|
return(S_OK);
|
|
}
|
|
|
|
HRESULT ISequentialInStream_Istream::Read(void *aData, UINT32 aSize, UINT32 *aProcessedSize)
|
|
{
|
|
data.read((char *)aData, aSize);
|
|
*aProcessedSize = data.gcount();
|
|
return(S_OK);
|
|
}
|
|
|
|
HRESULT ISequentialOutStream_Ostream::Write(const void *aData, UINT32 aSize, UINT32 *aProcessedSize)
|
|
{
|
|
*aProcessedSize = aSize;
|
|
data.write((char *)aData, aSize);
|
|
total += aSize;
|
|
return(S_OK);
|
|
}
|
|
|
|
|
|
|
|
HRESULT ISequentialInStreamCRC32_Array::Read(void *aData, UINT32 aSize, UINT32 *aProcessedSize)
|
|
{
|
|
ISequentialInStream_Array::Read(aData, aSize, aProcessedSize);
|
|
crc32 = CRC32lib::CRC32((const unsigned char *)aData, *aProcessedSize, ~crc32);
|
|
return(S_OK);
|
|
}
|
|
|
|
HRESULT ISequentialOutStreamCRC32_Array::Write(const void *aData, UINT32 aSize, UINT32 *aProcessedSize)
|
|
{
|
|
ISequentialOutStream_Array::Write(aData, aSize, aProcessedSize);
|
|
crc32 = CRC32lib::CRC32((const unsigned char *)aData, *aProcessedSize, ~crc32);
|
|
return(S_OK);
|
|
}
|
|
|
|
HRESULT ISequentialInStreamCRC32_String::Read(void *aData, UINT32 aSize, UINT32 *aProcessedSize)
|
|
{
|
|
ISequentialInStream_String::Read(aData, aSize, aProcessedSize);
|
|
crc32 = CRC32lib::CRC32((const unsigned char *)aData, *aProcessedSize, ~crc32);
|
|
return(S_OK);
|
|
}
|
|
|
|
HRESULT ISequentialOutStreamCRC32_String::Write(const void *aData, UINT32 aSize, UINT32 *aProcessedSize)
|
|
{
|
|
ISequentialOutStream_String::Write(aData, aSize, aProcessedSize);
|
|
crc32 = CRC32lib::CRC32((const unsigned char *)aData, *aProcessedSize, ~crc32);
|
|
return(S_OK);
|
|
}
|
|
|
|
HRESULT ISequentialInStreamCRC32_Istream::Read(void *aData, UINT32 aSize, UINT32 *aProcessedSize)
|
|
{
|
|
ISequentialInStream_Istream::Read(aData, aSize, aProcessedSize);
|
|
crc32 = CRC32lib::CRC32((const unsigned char *)aData, *aProcessedSize, ~crc32);
|
|
return(S_OK);
|
|
}
|
|
|
|
HRESULT ISequentialOutStreamCRC32_Ostream::Write(const void *aData, UINT32 aSize, UINT32 *aProcessedSize)
|
|
{
|
|
ISequentialOutStream_Ostream::Write(aData, aSize, aProcessedSize);
|
|
crc32 = CRC32lib::CRC32((const unsigned char *)aData, *aProcessedSize, ~crc32);
|
|
return(S_OK);
|
|
}
|