modDB.c File Reference

Functions to read lens profile information from profile files. More...

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <ctype.h>
#include "../include/clens.h"

Functions
long	instrrev (char *str2, char *str1)
	Find the last occurance of str1 in str2.
char *	trim (char *str)
	Trim white space from str.
void	substr (char *destStr, char *srcStr, int offset, int len)
	Copy len characters from srcStr to destStr starting from offset.
int	lhs (char *str, char *key)
	If key matches the beginning of str, copy the value (ie the rest of the string minus key) to the global. variable rhs.
void	sortCoefs (long lb, long ub)
	Sort the global array of coefficients, coef[], within a region defined by lb and ub.
void	insertCam (CamNode *pCam)
	Insert a camera into the linked list of cameras such that cameras are alphabetized by make within models and models are in the same order as in "profile.txt".
void	insertLns (LnsNode *pLns)
	Insert a lens into the linked list of lenses such that lenses belonging to the same group are together.
int	check (int b, char *s)
	Utility function to print error messages from parsing the profile files.
long	processDbFile (char *s)
	Function to parse profile files. The Lens, Camera, and group linked lists are created here, and the coef[] array is populated.
long	processDbIndex (char *s)
	Parse the lines in the master profile file, "profile.txt".
long	readDataBase ()
	Read lens calibration data from profile files.
CamNode *	findCamera (char *exifMake, char *exifModel)
	Look for a camera in the linked list of supported cameras.
int	inGroups (LnsNode *thisLens, CamNode *thisCamera)
	Look for a lens in the list of lens groups compatable with the camera.
LnsNode *	findLens (char *lens, CamNode *camera)
	Look for a lens in the linked list of supported lenses. The lens is checked to make sure it has been calibrated for the camera passed in.
LnsNode *	findLenses (CamNode *camera)
	Create a linked list of all calibrated lenses for the input camera.
Variables
prefType	pref
	Data structure to hold program preferences.
CamNode *	pCamHdr = NULL
	Points to the first camera in the linked list of supported cameras.
LnsNode *	pLnsHdr = NULL
	Points to the first lens in the linked list of supported lenses.
CamNode	pCurCam
	Current camera being read in from profiles.
LnsNode	pCurLns
	Current lens being read in from profiles.
CoefType	coef [10000]
	Array of lens correction coefficient data types.
long	coefIndex
	Next available slot in coef[]. Holds the total number of lens correction coefficients after all profiles are read.
char *	fileList [500]
	Array to hold the filenames contained in profile.txt.
long	fileIndex
	Next available slot in fileList[].
char *	fileName
	Current profile file name being read from.
int	line
	Holds the value of the current line of being read in profile.txt.
char	rhs [256]
	String to hold the right hand side of a parsed line.
const long	PROCESS_VOID = 0
	State value for parsing profile files.
const long	PROCESS_CAM = 1
	State value for parsing profile files.
const long	PROCESS_LENS = 2
	State value for parsing profile files.

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Detailed Description

Functions to read lens profile information from profile files.

Author:

Tim Jacobs (ported from Thoms Niemann's PTLens code)

Date:

2004.11.13

Full description here.

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Function Documentation

int check (  int  b, char *  s )

Utility function to print error messages from parsing the profile files. Returns: The value of b passed in Parameters: b  Indicates if an error message needs to be printed s  The string identifying a missing element in the profile file

CamNode* findCamera (  char *  exifMake, char *  exifModel )

Look for a camera in the linked list of supported cameras. Returns: pointer to camera node if successfull, NULL otherwise Parameters: exifMake  The camera make as found in the jpeg EXIF data exifModel  The camera model as found in the jpeg EXIF data

LnsNode* findLens (  char *  lens, CamNode *  camera )

Look for a lens in the linked list of supported lenses. The lens is checked to make sure it has been calibrated for the camera passed in. Returns: pointer to the lens node if successful, NULL otherwise Parameters: lens  The lens to look for camera  The camera model as found in the jpeg EXIF data

LnsNode* findLenses (  CamNode *  camera  )

Create a linked list of all calibrated lenses for the input camera. Returns: pointer to the first lens node if lenses found, NULL otherwise Parameters: camera  A pointer to the camera node in the linked list

int inGroups (  LnsNode *  thisLens, CamNode *  thisCamera )

Look for a lens in the list of lens groups compatable with the camera. Returns: 0 if unseccessful, 1 otherwise Parameters: thisLens  The lens to look for thisCamera  The camera model as found in the jpeg EXIF data

void insertCam (  CamNode *  pCam  )

Insert a camera into the linked list of cameras such that cameras are alphabetized by make within models and models are in the same order as in "profile.txt". Parameters: pCam  The camera to insert

void insertLns (  LnsNode *  pLns  )

Insert a lens into the linked list of lenses such that lenses belonging to the same group are together. Parameters: pLns  The lens to insert

long instrrev (  char *  str2, char *  str1 )

Find the last occurance of str1 in str2. Returns: The position in str2 of the last occurance of str1. 0 if not found Parameters: str2  The string to search str1  The substring to look for in str1

int lhs (  char *  str, char *  key )

If key matches the beginning of str, copy the value (ie the rest of the string minus key) to the global. variable rhs. Returns: 0 if key not found, 1 otherwise Parameters: str  The string possibly containing key and value key  The key to look for

long processDbFile (  char *  s  )

Function to parse profile files. The Lens, Camera, and group linked lists are created here, and the coef[] array is populated. Returns: 0 if line parsed successfully, 1 otherwise Parameters: s  A line from a profile file

long processDbIndex (  char *  s  )

Parse the lines in the master profile file, "profile.txt". Returns: 0 if line parsed successfully, 1 otherwise Parameters: s  A line from "profile.txt"

long readDataBase (   )

Read lens calibration data from profile files. Returns: 0 if successfull, 1 otherwise

void sortCoefs (  long  lb, long  ub )

Sort the global array of coefficients, coef[], within a region defined by lb and ub. Parameters: lb  The lower bound (inclusive) for the sort region ub  The upper bound (inclusive) for the sort region

void substr (  char *  destStr, char *  srcStr, int  offset, int  len )

Copy len characters from srcStr to destStr starting from offset. Parameters: destStr  The destination string srcStr  The source string offset  The offset in srcStr from which to start copying len  The number of characters to copy to destStr

char* trim (  char *  str  )

Trim white space from str. Returns: The input string (str) minus any white space from either end Parameters: str  The input string

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