Memory buffer functions

:Associate with "Memory buffer functions" More...

Functions
UINT8	bitrev (UINT8 b)
void	bitrevlin (UINT8 *buf, int numbytes)
int	getbit (const UINT8 *array, INT32 index)
int	getbitn (const UINT8 *array, INT32 index)
void	memswap (void *vb1, void *vb2, int count)
void	packbits (UINT8 *dest, UINT8 *source, int count)
void	packbitsr (UINT8 *dest, UINT8 *source, int count)
void	putbit (UINT8 *array, INT32 index, int value)
void	revbuffer (void *vbuf, int cols)
template<class _BUF >
void	SwapBytes (_BUF *alist, INT32 num)
double	SwapBytes (double &value)
UINT64	SwapBytes (UINT64 &value)
INT64	SwapBytes (INT64 &value)
float	SwapBytes (float &value)
UINT32	SwapBytes (UINT32 &value)
INT32	SwapBytes (INT32 &value)
UINT16	SwapBytes (UINT16 &value)
INT16	SwapBytes (INT16 &value)
UINT8	SwapBytes (UINT8 &value)
INT8	SwapBytes (INT8 &value)
char	SwapBytes (char &value)
void	SwapBytes2 (void *data, int num)
void	SwapBytes4 (void *data, int num)
void	SwapBytes8 (void *data, int num)
void	SwapDataInBuffer (void *data, INT32 NumItems, int ItemSize)

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Detailed Description

:Associate with "Memory buffer functions"

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Function Documentation

UINT8 bitrev

(

UINT8

b

)

[inline]

Reverse order of bits in a single byte.

void bitrevlin	(	UINT8 *	buf,
		int	numbytes
	)

Reverse bits for array.

int getbit	(	const UINT8 *	array,
		INT32	index
	)			[inline]

Get a value from a bit array.

Returns:

0 or 1.

Parameters:

	array	Bit array
	index	Index into array

int getbitn	(	const UINT8 *	array,
		INT32	index
	)			[inline]

Get a value from a bit array, returns 0 if array is NULL.

Returns:

0 or 1 (0 if array is NULL).

Parameters:

	array	Bit array, can be NULL
	index	Index into array

void memswap	(	void *	vb1,
		void *	vb2,
		int	count
	)			[inline]

Swap data in two buffers.

void packbits	(	UINT8 *	dest,
		UINT8 *	source,
		int	count
	)

Pack TRUE/FALSE values from 8-bit array into bit array with least-significant bit as first bit.

Non-zero values in the 8-bit array will be written as '1', zero values will be written as '0'.

void packbitsr	(	UINT8 *	dest,
		UINT8 *	source,
		int	count
	)

Pack TRUE / FALSE values from 8-bit array into bit array with MOST-significannt bit as first bit.

Non-zero values in the 8-bit array will be written as '1', zero values will be written as '0'.

void putbit	(	UINT8 *	array,
		INT32	index,
		int	value
	)			[inline]

Set entry in a bit array to a specified value.

Parameters:

	array	Bit array
	index	Index into array
	value	Value to set to (any non-zero value assumed to be 1)

void revbuffer	(	void *	vbuf,
		int	cols
	)

Reverse the order of values in UINT8 array.

template<class _BUF >

void SwapBytes	(	_BUF *	alist,
		INT32	num
	)			[inline]

Swap bytes.

Parameters:

	alist	Array of items to swap
	num	Number of items in array

double SwapBytes

(

double &

value

)

[inline]

Swap bytes - double.

UINT64 SwapBytes

(

UINT64 &

value

)

[inline]

Swap bytes - 64 bit unsigned.

INT64 SwapBytes

(

INT64 &

value

)

[inline]

Swap bytes - 64 bit signed.

float SwapBytes

(

float &

value

)

[inline]

Swap bytes - float.

UINT32 SwapBytes

(

UINT32 &

value

)

[inline]

Swap bytes - 32 bit unsigned.

INT32 SwapBytes

(

INT32 &

value

)

[inline]

Swap bytes - 32 bit signed.

UINT16 SwapBytes

(

UINT16 &

value

)

[inline]

Swap bytes - 16 bit unsigned.

INT16 SwapBytes

(

INT16 &

value

)

[inline]

Swap bytes - 16 bit signed.

UINT8 SwapBytes

(

UINT8 &

value

)

[inline]

Swap bytes - 8 bit unsigned.

INT8 SwapBytes

(

INT8 &

value

)

[inline]

Swap bytes - 8 bit signed.

char SwapBytes

(

char &

value

)

[inline]

Swap bytes - character.

void SwapBytes2	(	void *	data,
		int	num
	)			[inline]

Swap bytes in array of 2-byte values (INT16, UINT16).

Parameters:

	data	Array of items to swap
	num	Number of items

void SwapBytes4	(	void *	data,
		int	num
	)			[inline]

Swap bytes in array of 4-byte values (float, INT32, UINT32).

Parameters:

	data	Array of items to swap
	num	Number of items

void SwapBytes8	(	void *	data,
		int	num
	)			[inline]

Swap bytes in array of 8-byte values (double, INT64, UINT64).

C++ GENERATING_DOXYGEN_OUTPUT

Parameters:

	data	Array of items to swap
	num	Number of items

void SwapDataInBuffer	(	void *	data,
		INT32	NumItems,
		int	ItemSize
	)

Swap data in a buffer given number of items and size.

Parameters:

	data	Array of items to swap
	NumItems	Number of items in the array
	ItemSize	Size of item to swap