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Upgraded stream support.

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This commit is contained in:
n-a-c-h
2005-03-08 10:41:36 +00:00
parent 689636bd63
commit 6002034186
2 changed files with 252 additions and 32 deletions
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99
zsnes/src/jma/iiostrm.cpp
View File

@@ -1,4 +1,5 @@
/*
Copyright (C) 2005 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 )
@@ -19,26 +20,114 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#include "portable.h"
#include "iiostrm.h"
#include "crc32.h"
HRESULT ISequentialInStream::Read(void *aData, UINT32 aSize, UINT32* aProcessedSize) {
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;
return(S_OK);
}
HRESULT ISequentialOutStream::Write(const void *aData, UINT32 aSize, UINT32* aProcessedSize) {
if (aSize > size) {
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;
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);
}

151
zsnes/src/jma/iiostrm.h
View File

@@ -1,4 +1,5 @@
/*
Copyright (C) 2005 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 )
@@ -20,29 +21,159 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#ifndef __IINOUTSTREAMS_H
#define __IINOUTSTREAMS_H
#include <string>
#include <fstream>
#include "portable.h"
class ISequentialInStream
{
const char* data;
unsigned size;
public:
ISequentialInStream(const char* Adata, unsigned Asize) : data(Adata), size(Asize) { }
virtual HRESULT Read(void *, UINT32, UINT32 *) = 0;
};
class ISequentialInStream_Array : public ISequentialInStream
{
const char *data;
unsigned int size;
public:
ISequentialInStream_Array(const char *Adata, unsigned Asize) : data(Adata), size(Asize) { }
HRESULT Read(void *aData, UINT32 aSize, UINT32 *aProcessedSize);
};
class ISequentialInStream_String : public ISequentialInStream
{
std::string& data;
public:
ISequentialInStream_String(std::string& Adata) : data(Adata) { }
HRESULT Read(void *aData, UINT32 aSize, UINT32 *aProcessedSize);
};
class ISequentialInStream_Istream : public ISequentialInStream
{
std::istream& data;
public:
ISequentialInStream_Istream(std::istream& Adata) : data(Adata) { }
HRESULT Read(void *aData, UINT32 aSize, UINT32 *aProcessedSize);
};
class ISequentialOutStream
{
char* data;
unsigned size;
bool overflow;
unsigned total;
public:
ISequentialOutStream(char* Adata, unsigned Asize) : data(Adata), size(Asize), overflow(false), total(0) { }
virtual bool overflow_get() const = 0;
virtual unsigned int size_get() const = 0;
bool overflow_get() const { return overflow; }
unsigned size_get() const { return total; }
virtual HRESULT Write(const void *, UINT32, UINT32 *) = 0;
};
class ISequentialOutStream_Array : public ISequentialOutStream
{
char *data;
unsigned int size;
bool overflow;
unsigned int total;
public:
ISequentialOutStream_Array(char *Adata, unsigned Asize) : data(Adata), size(Asize), overflow(false), total(0) { }
bool overflow_get() const { return(overflow); }
unsigned int size_get() const { return(total); }
HRESULT Write(const void *aData, UINT32 aSize, UINT32 *aProcessedSize);
};
class ISequentialOutStream_String : public ISequentialOutStream
{
std::string& data;
unsigned int total;
public:
ISequentialOutStream_String(std::string& Adata) : data(Adata), total(0) { }
bool overflow_get() const { return(false); }
unsigned int size_get() const { return(total); }
HRESULT Write(const void *aData, UINT32 aSize, UINT32 *aProcessedSize);
};
class ISequentialOutStream_Ostream : public ISequentialOutStream
{
std::ostream& data;
unsigned int total;
public:
ISequentialOutStream_Ostream(std::ostream& Adata) : data(Adata), total(0) { }
bool overflow_get() const { return(false); }
unsigned int size_get() const { return(total); }
HRESULT Write(const void *aData, UINT32 aSize, UINT32 *aProcessedSize);
};
class ISequentialStreamCRC32
{
protected:
unsigned int crc32;
public:
ISequentialStreamCRC32() : crc32(0) {}
unsigned int crc32_get() const { return(crc32); }
};
class ISequentialInStreamCRC32_Array : public ISequentialInStream_Array, public ISequentialStreamCRC32
{
public:
ISequentialInStreamCRC32_Array(const char *Adata, unsigned Asize) : ISequentialInStream_Array(Adata, Asize) { }
HRESULT Read(void *aData, UINT32 aSize, UINT32 *aProcessedSize);
};
class ISequentialInStreamCRC32_String : public ISequentialInStream_String, public ISequentialStreamCRC32
{
public:
ISequentialInStreamCRC32_String(std::string& Adata) : ISequentialInStream_String(Adata) { }
HRESULT Read(void *aData, UINT32 aSize, UINT32 *aProcessedSize);
};
class ISequentialInStreamCRC32_Istream : public ISequentialInStream_Istream, public ISequentialStreamCRC32
{
public:
ISequentialInStreamCRC32_Istream(std::istream& Adata) : ISequentialInStream_Istream(Adata) { }
HRESULT Read(void *aData, UINT32 aSize, UINT32 *aProcessedSize);
};
class ISequentialOutStreamCRC32_Array : public ISequentialOutStream_Array, public ISequentialStreamCRC32
{
public:
ISequentialOutStreamCRC32_Array(char *Adata, unsigned Asize) : ISequentialOutStream_Array(Adata, Asize) { }
HRESULT Write(const void *aData, UINT32 aSize, UINT32 *aProcessedSize);
};
class ISequentialOutStreamCRC32_String : public ISequentialOutStream_String, public ISequentialStreamCRC32
{
public:
ISequentialOutStreamCRC32_String(std::string& Adata) : ISequentialOutStream_String(Adata) { }
HRESULT Write(const void *aData, UINT32 aSize, UINT32 *aProcessedSize);
};
class ISequentialOutStreamCRC32_Ostream : public ISequentialOutStream_Ostream, public ISequentialStreamCRC32
{
public:
ISequentialOutStreamCRC32_Ostream(std::ostream& Adata) : ISequentialOutStream_Ostream(Adata) { }
HRESULT Write(const void *aData, UINT32 aSize, UINT32 *aProcessedSize);
};