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#/*##########################################################################
# Copyright (C) 2004-2014 European Synchrotron Radiation Facility
#
# This file is part of the PyMca X-ray Fluorescence Toolkit developed at
# the ESRF by the Software group.
#
# This file is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by the Free
# Software Foundation; either version 2 of the License, or (at your option)
# any later version.
#
# This file is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
#
#############################################################################*/
/************************************************************************
*
* File: sfmca.c
*
* Project: SpecFile library
*
* Description: Access to MCA spectra
*
* Author: V.Rey
*
* Date: $Date: 2002/11/15 16:25:44 $
*
************************************************************************/
/*
* Log: $Log: sfmca.c,v $
* Log: Revision 1.3 2002/11/15 16:25:44 sole
* Log: free(retline) replaced by freeArrNZ((void ***) &retline,nb_lines); to eliminate the memory leak when reading mca
* Log:
* Log: Revision 1.2 2002/11/15 10:44:36 sole
* Log: added free(retline) after call to SfHeader
* Log:
* Log: Revision 1.1 2002/11/15 10:17:38 sole
* Log: Initial revision
* Log:
* Log: Revision 3.0 2000/12/20 14:17:19 rey
* Log: Python version available
* Log:
* Revision 2.1 2000/07/31 19:05:12 19:05:12 rey (Vicente Rey-Bakaikoa)
* SfUpdate and bug corrected in ReadIndex
*
* Revision 2.0 2000/04/13 13:28:54 13:28:54 rey (Vicente Rey-Bakaikoa)
* New version of the library. Complete rewrite
* Adds support for MCA
*/
#include <SpecFile.h>
#include <SpecFileP.h>
#include <locale_management.h>
#ifndef _GNU_SOURCE
#ifdef PYMCA_POSIX
#include <locale.h>
#endif
#endif
#include <ctype.h>
#include <stdlib.h>
/*
* Define macro
*/
#define isnumber(this) ( isdigit(this) || this == '-' || this == '+' || this =='e' || this == 'E' || this == '.' )
/*
* Mca continuation character
*/
#define MCA_CONT '\\'
#define D_INFO 3
/*
* Declarations
*/
DllExport long SfNoMca ( SpecFile *sf, long index, int *error );
DllExport int SfGetMca ( SpecFile *sf, long index, long mcano,
double **retdata, int *error );
DllExport long SfMcaCalib ( SpecFile *sf, long index, double **calib,
int *error );
/*********************************************************************
* Function: long SfNoMca( sf, index, error )
*
* Description: Gets number of mca spectra in a scan
*
* Parameters:
* Input : (1) File pointer
* (2) Index
* Output:
* (3) error number
* Returns:
* Number of data lines ,
* ( -1 ) => errors.
* Possible errors:
* SF_ERR_SCAN_NOT_FOUND
*
*********************************************************************/
DllExport long
SfNoMca( SpecFile *sf, long index, int *error )
{
if (sfSetCurrent(sf,index,error) == -1 )
return(-1);
return( ((SpecScan *)sf->current->contents)->mcaspectra );
}
/*********************************************************************
* Function: int SfGetMca(sf, index, number, data, error)
*
* Description: Gets data.
* Parameters:
* Input : (1) File pointer
* (2) Index
* Output:
* (3) Data array
* (4) Data info : [0] => no_lines
* [1] => no_columns
* [2] = ( 0 ) => regular
* ( 1 ) => not regular !
* (5) error number
* Returns:
* ( 0 ) => OK
* ( -1 ) => errors occured
* Possible errors:
* SF_ERR_MEMORY_ALLOC
* SF_ERR_FILE_READ
* SF_ERR_SCAN_NOT_FOUND
* SF_ERR_LINE_NOT_FOUND
*
* Remark: The memory allocated should be freed by the application
*
*********************************************************************/
DllExport int
SfGetMca( SpecFile *sf, long index, long number, double **retdata, int *error )
{
double *data = NULL;
long headersize;
int old_fashion;
static char* last_from = NULL;
static char* last_pos = NULL;
static long last_number = 0;
long int scanno = 0;
static long int last_scanno = 0;
char *ptr,
*from,
*to;
char strval[100];
double val;
int i,spect_no=0;
long vals;
long blocks=1,
initsize=1024;
#ifndef _GNU_SOURCE
#ifdef PYMCA_POSIX
char *currentLocaleBuffer;
char localeBuffer[21];
#endif
#endif
headersize = ((SpecScan *)sf->current->contents)->data_offset
- ((SpecScan *)sf->current->contents)->offset;
scanno = ((SpecScan *)sf->current->contents)->scan_no;
/*
* check that mca number is available
*/
if (number < 1) {
*error = SF_ERR_MCA_NOT_FOUND;
*retdata = (double *)NULL;
return(-1);
}
/*
* Get MCA info from header
*/
from = sf->scanbuffer + headersize;
to = sf->scanbuffer + ((SpecScan *)sf->current->contents)->size;
old_fashion = 1;
if (last_scanno == scanno)
{
if (last_from == from)
{
/* same scan as before */
if (number > last_number)
{
spect_no = last_number;
old_fashion = 0;
}
}
}
if (old_fashion)
{
last_scanno = scanno;
last_from = from;
spect_no = 0;
last_pos = from;
}
/*
* go and find the beginning of spectrum
*/
ptr = last_pos;
if ( *ptr == '@' ) {
spect_no++;
ptr++;
last_pos = ptr;
}
while ( spect_no != number && ptr < to ) {
if (*ptr == '@') spect_no++;
ptr++;
last_pos = ptr;
}
ptr++;
if ( spect_no != number ) {
*error = SF_ERR_MCA_NOT_FOUND;
*retdata = (double *)NULL;
return(-1);
}
last_number = spect_no;
/*
* Calculate size and book memory
*/
initsize = 2048;
i = 0;
vals = 0;
/*
* Alloc memory
*/
if ((data = (double *)malloc (sizeof(double) * initsize)) == (double *)NULL) {
*error = SF_ERR_MEMORY_ALLOC;
return(-1);
}
/*
* continue
*/
#ifndef _GNU_SOURCE
#ifdef PYMCA_POSIX
currentLocaleBuffer = setlocale(LC_NUMERIC, NULL);
strcpy(localeBuffer, currentLocaleBuffer);
setlocale(LC_NUMERIC, "C\0");
#endif
#endif
for ( ;(*(ptr+1) != '\n' || (*ptr == MCA_CONT)) && ptr < to - 1 ; ptr++)
{
if (*ptr == ' ' || *ptr == '\t' || *ptr == '\\' || *ptr == '\n') {
if ( i ) {
if ( vals%initsize == 0 ) {
blocks++;
if ((data = (double *)realloc (data, sizeof(double) * blocks * initsize))
== (double *)NULL) {
*error = SF_ERR_MEMORY_ALLOC;
#ifndef _GNU_SOURCE
#ifdef PYMCA_POSIX
setlocale(LC_NUMERIC, localeBuffer);
#endif
#endif
return(-1);
}
}
strval[i] = '\0';
i = 0;
val = PyMcaAtof(strval);
data[vals] = val;
vals++;
}
} else if (isnumber(*ptr)) {
strval[i] = *ptr;
i++;
}
}
if (isnumber(*ptr)) {
strval[i] = *ptr;
strval[i+1] = '\0';
val = PyMcaAtof(strval);
data[vals] = val;
vals++;
}
#ifndef _GNU_SOURCE
#ifdef PYMCA_POSIX
setlocale(LC_NUMERIC, localeBuffer);
#endif
#endif
*retdata = data;
return( vals );
}
DllExport long
SfMcaCalib ( SpecFile *sf, long index, double **calib, int *error )
{
long nb_lines;
char **retline;
char *strptr;
double val1,val2,val3;
double *retdata;
nb_lines = SfHeader(sf,index,"@CALIB",&retline,error);
if (nb_lines > 0) {
strptr = retline[0] + 8;
sscanf(strptr,"%lf %lf %lf",&val1,&val2,&val3);
} else {
*calib = (double *)NULL;
return(-1);
}
retdata = (double *) malloc(sizeof(double) * 3 );
retdata[0] = val1; retdata[1] = val2; retdata[2] = val3;
*calib = retdata;
return(0);
}
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