---

GLAST/LAT > DAQ and FSW > FSW > Doxygen Index > LSEP / V1-3-4

Constituent: lsepw     Tag: sun-gcc

---

         

---

CDFP.c File Reference

Generic compression routines. More...

#include "LSEP/LSEP_ids.h"
#include "CDFP.h"
#include "CDFP_def.h"
#include "LSE/CDF_esb.h"
#include "LSE/CDF_gem.h"
#include "LSE/CDF_acd.h"
#include "LSE/CDF_cal.h"
#include "LSE/CDF_tkr.h"
#include "LSE/CDF_dgn.h"
#include "LSE/CDF_err.h"
#include "LDT/HDE.h"
#include <string.h>

Include dependency graph for CDFP.c:

Defines
#define	RND8N(_n)   (((_n) + 7) & ~7)
#define	RND8P(_p)   ((void *)(((unsigned int)(_p) + 7) & ~7))
Functions
static __inline unsigned int *	composeCtb (CDFP_ctxCtb *ctb, const CDFP_ctx *cdfp)
	Composes the CDF LSF contribution.
int	CDFP_cfg_sizeof (int level)
	Returns the size, in bytes, of the compression configuration needed to support the specified compression level.
int	CDFP_cfg_construct (CDFP_cfg *cfg, int level)
	Constructs (initializes) the compression configuration for the appropriate level.
int	CDFP_sizeof (int level, void *cfg)
	Returns the size, in bytes, of the compression structure needed to supprot the specified compression level.
int	CDFP_construct (CDFP_ctx *cdfp, int level, const CDFP_cfg *cfg, LSEW_dgmFw *dgmFw, LSEPW *lsepw)
	Constructs (initializes) the compression structure for the appropriate level.
unsigned int *	CDFP_begin_add (CDFP_ctx *cdfp, unsigned int *beg, unsigned int len32)
	Begin datagram callback routine.

---

Detailed Description

Generic compression routines.

Author:

JJRussell - russell@slac.stanford.edu

   CVS $Id: CDFP.c,v 1.4 2009/04/30 22:49:50 russell Exp $

---

Function Documentation

unsigned int* CDFP_begin_add	(	CDFP_ctx *	cdfp,
		unsigned int *	beg,
		unsigned int	len32
	)

Begin datagram callback routine.

Returns:

Pointer to the next write location

Parameters:

	cdfp	The Compressed Data Format handle
	beg	The output buffer
	len32	The amount of space, in 32-bit words, available in the output buffer

int CDFP_cfg_construct	(	CDFP_cfg *	cfg,
		int	level
	)

Constructs (initializes) the compression configuration for the appropriate level.

Returns:

Status

Parameters:

	cfg	The compression configuratin to initialize
	level	The maximum compression level that needs supporting

Warning:

It is assumed that the caller has used CDFP_cfg_sizeof to determine the amount of storage that is needed and, thus, has assured that the cfg structure is adequately sized.

int CDFP_cfg_sizeof

(

int

level

)

Returns the size, in bytes, of the compression configuration needed to support the specified compression level.

Returns:

The size, in bytes, of the compression configuration

Parameters:

level

The maximum compression level to support

int CDFP_construct	(	CDFP_ctx *	cdfp,
		int	level,
		const CDFP_cfg *	cfg,
		LSEW_dgmFw *	dgmFw,
		LSEPW *	lsepw
	)

Constructs (initializes) the compression structure for the appropriate level.

Returns:

Status

Parameters:

	cdfp	The compression context to initialize
	level	The maximum compression level that needs supporting
	cfg	Target specific configuration parameter
	dgmFw	The datagram framework handle
	lsepw	The generic LSEPW services

Warning:

It is assumed that the called has used CDFP_sizeof to determine the amount of storage that is needed and, thus, has assured that the cmp structure is adequately sized.

int CDFP_sizeof	(	int	level,
		void *	cfg
	)

Returns the size, in bytes, of the compression structure needed to supprot the specified compression level.

Returns:

The size, in bytes, of the compression structure

Parameters:

	level	The maximum compression level to support
	cfg	Level specific configuration parameter

static __inline unsigned int * composeCtb	(	CDFP_ctxCtb *	ctb,
		const CDFP_ctx *	cdfp
	)			[static]

Composes the CDF LSF contribution.

Returns:

Pointer to the next fill location

Parameters:

	ctb	The contribution to fill
	cdfp	The Compression Data Formatting Physics context

---