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/*******************************************************************************
*
* McXtrace, x-ray tracing package
* Copyright, All rights reserved
* DTU Physics, Kgs. Lyngby, Denmark
* Synchrotron SOLEIL, Saint-Aubin, France
*
* Component: Shadow_input
*
* %Identification
* Written by: Andrea Prodi
* Date: November 21, 2011
* Origin: Risoe/ILL
* Release: McXtrace 0.1
*
* Read x-ray state parameters from SHADOW x-ray event file.
*
* %Description
* Source-like component reading x-ray state parameters from a
* SHADOW x-ray event file. Used to interface McXtrace components or
* simulations into SHADOW.
*
* Example: Shadow_input(file="MySource.00", bufsize = 10000, repeat_count = 2)
*
* %Parameters
* INPUT PARAMETERS
*
* file: [string] Filename of x-ray file to read. Default (NULL) is standard input. Empty string "" unactivates component
* bufsize: [records] Size of x-ray input buffer
* repeat_count: [1] Number of times to repeat each x-ray read
*
* OUTPUT PARAMETERS
*
* finished: Set to 1 when the last x-ray has been read [int]
*
* %End
*******************************************************************************/
DEFINE COMPONENT Shadow_input
SETTING PARAMETERS (string file="", int bufsize=10000, int repeat_count=1)
/*STATE PARAMETERS (x,y,z,kx,ky,kz,phi,t,Ex,Ey,Ez,p)*/
SHARE
%{
%include "shadow-lib"
%}
DECLARE
%{
char *filename; /* path + filename */
FILE *hfile; /* X-ray input file handle */
Ray *ibuf; /* X-ray input buffer */
int npoint; /* X-ray input file number of rays */
int reclen; /* X-ray input file Fortran record head-tail */
int ncol; /* X-ray input file number of columns for each ray*/
int iflag;
int size; /* Number of X-rays currently in buffer */
int pos; /* Current position in buffer */
int finished; /* Set to 1 when last X-ray read */
int count;
int count2;
%}
INITIALIZE
%{
filename=NULL;
hfile=NULL; /* X-ray input file handle */
ibuf=NULL; /* X-ray input buffer */
iflag=1;
size=0;
pos=0;
finished=0;
count=0;
count2=0;
int dum, i;
/* Open x-ray input file. */
if (!file || !strcmp(file,"NULL") || !strcmp(file,"0") || !strcmp(file,"stdin")) {
hfile = stdin;
} else if (!strlen(file)) {
hfile = NULL;
} else {
hfile = fopen((filename=FullParName(file)), "rb");
if(!hfile) {
fprintf(stderr, "Shadow_input: Error: Cannot open input file %s.\n", filename);
exit(1);
}
}
#ifdef WIN32
if(hfile==stdin)
{ if( _setmode(_fileno( stdin ), _O_BINARY ) == -1)
{ fprintf(stderr,"Can't set stdin to binary mode\n");
exit(1);
}
}
#endif
if (hfile) {
/* Read data file header */
fread(&reclen, sizeof(int), 1, hfile);
fread(&ncol, sizeof(int), 1, hfile);
fread(&npoint, sizeof(int), 1, hfile);
fread(&iflag, sizeof(int), 1, hfile);
fread(&reclen, sizeof(int), 1, hfile);
/* printf("size:%i %i %i\n",ncol,npoint,iflag); */
if (ncol != 12 && ncol != 13 && ncol != 18) {
fprintf(stderr, "Shadow_input: Error: Invalid number of columns:%i\n",ncol);
exit(1);
}
reclen = ncol * sizeof(double); /* size of a ray in Shadow datafile */
/* Allocate x-ray input buffer. */
bufsize = npoint;
ibuf = calloc(bufsize, sizeof(Ray));
if(!ibuf)
{
fprintf(stderr, "Shadow_input: Error: Cannot allocate x-ray buffer.\n");
exit(1);
}
}
if (hfile && ibuf) {
/* Buffer is empty. */
for(i=0;i<npoint;i++){
fread(&reclen, sizeof(int), 1, hfile);
dum = fread(&ibuf[i], sizeof(Ray), 1, hfile);
fread(&reclen, sizeof(int), 1, hfile);
size += dum;
}
/* printf("size of records read:%i\n",size); */
if(size <= 0) {
if(ferror(hfile))
fprintf(stderr, "Shadow_input: Error during read of x-ray file.\n");
if(feof(hfile) || ferror(hfile))
finished = 1; /* End of file or error reached */
} else {
pos = 0; /* Reposition at start of buffer */
}
}
%}
TRACE
%{
int rep=0; /* X-ray repeat count */
/* When no more x-ray records are available in the x-ray file,
any remaining iterations are skipped by immediately ABSORB'ing
the rays. */
if(pos<npoint){
shadow2mcxtrace(ibuf[pos], &x, &y, &z, &kx, &ky, &kz, &Ex, &Ey, &Ez, &phi, &t, &p);
#pragma acc atomic
count = count + 1;
} else{
#pragma acc atomic
count2 = count2 + 1;
ABSORB;
}
/* Repeat the same x-ray state parameters the required number of times. */
++rep;
if(rep >= repeat_count) {
rep = 0;
#pragma acc atomic
pos=pos+1;
}
%}
FINALLY
%{
/* printf("finished:%i %i %i %i %llu\n",finished,pos,count,count2,mcrun_num); */
if(hfile && ibuf)
free(ibuf);
if(hfile && file)
fclose(hfile);
%}
MCDISPLAY
%{
/* Invisible component. */
%}
END
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