TByteStream Class Reference

#include <CascMndx.h>

Public Member Functions
	TByteStream ()
void	ExchangeWith (TByteStream &Target)
int	GetBytes (DWORD cbByteCount, PARRAY_POINTER PtrArray)
int	SkipBytes (DWORD cbByteCount)
int	SetByteBuffer (LPBYTE pbNewMarData, DWORD cbNewMarData)
int	GetValue_DWORD (DWORD &Value)
int	GetValue_ItemCount (DWORD &NumberOfBytes, DWORD &ItemCount, DWORD ItemSize)
int	GetArray_DWORDs (PARRAY_POINTER PtrArray, DWORD ItemCount)
int	GetArray_Triplets (PARRAY_POINTER PtrArray, DWORD ItemCount)
int	GetArray_NameTable (PARRAY_POINTER PtrArray, DWORD ItemCount)
int	GetArray_BYTES (PARRAY_POINTER PtrArray, DWORD ItemCount)

Public Attributes
LPBYTE	pbByteData
void *	pvMappedFile
DWORD	cbByteData
DWORD	field_C
HANDLE	hFile
HANDLE	hMap

Constructor & Destructor Documentation

TByteStream::TByteStream

(

)

{
 pbByteData = NULL;
 pvMappedFile = NULL;
 cbByteData = 0;
 field_C = 0;
 hFile = 0;
 hMap = 0;
}

Member Function Documentation

void TByteStream::ExchangeWith

(

TByteStream &

Target

)

{
 TByteStream WorkBuff;

 WorkBuff = *this;
 *this = Target;
 Target = WorkBuff;
}

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int TByteStream::GetArray_BYTES	(	PARRAY_POINTER	PtrArray,
		DWORD	ItemCount
	)

{
 if(PtrArray == NULL && ItemCount != 0)
 return ERROR_INVALID_PARAMETER;
 if(ItemCount > CASC_MAX_ENTRIES(BYTE))
 return ERROR_NOT_ENOUGH_MEMORY;

 return GetBytes(ItemCount, PtrArray);
}

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int TByteStream::GetArray_DWORDs	(	PARRAY_POINTER	PtrArray,
		DWORD	ItemCount
	)

{
 if(PtrArray == NULL && ItemCount != 0)
 return ERROR_INVALID_PARAMETER;
 if(ItemCount > CASC_MAX_ENTRIES(DWORD))
 return ERROR_NOT_ENOUGH_MEMORY;

 return GetBytes(ItemCount * 4, PtrArray);
}

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int TByteStream::GetArray_NameTable	(	PARRAY_POINTER	PtrArray,
		DWORD	ItemCount
	)

{
 if(PtrArray == NULL && ItemCount != 0)
 return ERROR_INVALID_PARAMETER;
 if(ItemCount > CASC_MAX_ENTRIES(NAME_FRAG))
 return ERROR_NOT_ENOUGH_MEMORY;

 return GetBytes(ItemCount * sizeof(NAME_FRAG), PtrArray);
}

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int TByteStream::GetArray_Triplets	(	PARRAY_POINTER	PtrArray,
		DWORD	ItemCount
	)

{
 if(PtrArray == NULL && ItemCount != 0)
 return ERROR_INVALID_PARAMETER;
 if(ItemCount > CASC_MAX_ENTRIES(TRIPLET))
 return ERROR_NOT_ENOUGH_MEMORY;

 return GetBytes(ItemCount * sizeof(TRIPLET), PtrArray);
}

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int TByteStream::GetBytes	(	DWORD	cbByteCount,
		PARRAY_POINTER	PtrArray
	)

{
 if(cbByteData < cbByteCount)
 return ERROR_BAD_FORMAT;

 // Give the buffer to the caller
 PtrArray->Bytes = pbByteData;

 // Move pointers
 pbByteData += cbByteCount;
 cbByteData -= cbByteCount;
 return ERROR_SUCCESS;
}

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int TByteStream::GetValue_DWORD

(

DWORD &

Value

)

{
 ARRAY_POINTER Pointer;
 int nError;

 nError = GetBytes(sizeof(DWORD), &Pointer);
 if(nError != ERROR_SUCCESS)
 return nError;

 Value = Pointer.Uint32s[0];
 return ERROR_SUCCESS;
}

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int TByteStream::GetValue_ItemCount	(	DWORD &	NumberOfBytes,
		DWORD &	ItemCount,
		DWORD	ItemSize
	)

{
 ARRAY_POINTER Pointer;
 ULONGLONG ByteCount;
 int nError;

 // Verify if there is at least - 8 bytes
 nError = GetBytes(sizeof(ULONGLONG), &Pointer);
 if(nError != ERROR_SUCCESS)
 return nError;

 // Extract the number of bytes
 ByteCount = Pointer.Int64Ptr[0];
 if(ByteCount > 0xFFFFFFFF || (ByteCount % ItemSize) != 0)
 return ERROR_BAD_FORMAT;

 // Give the result to the caller
 NumberOfBytes = (DWORD)ByteCount;
 ItemCount = (DWORD)(ByteCount / ItemSize);
 return ERROR_SUCCESS;
}

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int TByteStream::SetByteBuffer	(	LPBYTE	pbNewMarData,
		DWORD	cbNewMarData
	)

{
 if(pbNewByteData != NULL || cbNewByteData == 0)
 {
 pbByteData = pbNewByteData;
 cbByteData = cbNewByteData;
 return ERROR_SUCCESS;
 }

 return ERROR_INVALID_PARAMETER;
}

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int TByteStream::SkipBytes

(

DWORD

cbByteCount

)

{
 ARRAY_POINTER Dummy;

 return GetBytes(cbByteCount, &Dummy);
}

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Member Data Documentation

DWORD TByteStream::cbByteData

DWORD TByteStream::field_C

HANDLE TByteStream::hFile

HANDLE TByteStream::hMap

LPBYTE TByteStream::pbByteData

void* TByteStream::pvMappedFile

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The documentation for this class was generated from the following files:

• dep/CascLib/src/CascMndx.h
• dep/CascLib/src/CascRootFile_Mndx.cpp