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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_output
*
* %Identification
* Written by: Andrea Prodi
* Date: November 21, 2011
* Origin: Risoe/ILL
* Release: McXtrace 0.1
*
* Write x-ray state parameters to SHADOW x-ray event file.
*
* %Description
* Detector-like component writing x-ray state parameters to a
* SHADOW x-ray file. Used to interface McXtrace components or
* simulations into SHADOW. Each photon is 104 bytes.
*
* Note that when standard output is used, as is the default, no
* monitors or other components that produce terminal output must be
* used, or the x-ray output from this component will become
* corrupted.
*
* Example: Shadow_output(file="MySource.vit", bufsize = 10000, progress = 1)
*
* %Parameters
* INPUT PARAMETERS
*
* file: [string] Filename of x-ray file to write. Default is standard output
* bufsize: [records] Size of x-ray output buffer
* progress: [flag] If not zero, output dots as progress indicator
*
* %End
*******************************************************************************/
DEFINE COMPONENT Shadow_output
SETTING PARAMETERS (string file="", int bufsize=1000, int progress=0)
/*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 output file handle */
Ray *obuf; /* X-ray output buffer */
int pos; /* Current position in buffer */
int reclen; /* Fortran binary unformatted sequential record head/tail */
int ncol;
int i;
int iflag;
double p_out; /* sum of output weight */
double p2_out; /* square sum of output weight */
%}
INITIALIZE
%{
ncol = 18; /* num column fixed at 18 for McXtrace->Shadow */
iflag = 0 ; /* Shadow flag must be set to zero !!! */
/* Open x-ray output file. */
if (file==NULL)
{
hfile = stdout;
}
else if
(!strcmp(file, "no_file"))
{
hfile = NULL;
}
else
{
hfile = fopen((filename=FullParName(file)), "wb");
if(!hfile)
{
fprintf(stderr, "Shadow_output: Error: Cannot open output file %s.\n", filename);
exit(1);
}
}
#ifdef WIN32
if(hfile==stdout)
{ if(_setmode(_fileno( stdout ), _O_BINARY ) == -1)
{ fprintf(stderr,"Can't set stdout to binary mode\n");
exit(1);
}
}
#endif
/* Write header for Shadow data file. */
reclen = 3*sizeof(int);
fwrite(&reclen, sizeof(int), 1, hfile);
fwrite(&ncol, sizeof(int), 1, hfile);
fwrite(&bufsize, sizeof(int), 1, hfile);
fwrite(&iflag, sizeof(int), 1, hfile);
fwrite(&reclen, sizeof(int), 1, hfile);
/* Allocate x-ray output buffer. */
reclen = ncol * sizeof(double);
obuf = calloc(bufsize, reclen + 2*sizeof(int));
if(!obuf)
{
fprintf(stderr, "Shadow_output: Error: Cannot allocate x-ray buffer.\n");
exit(1);
}
/* Initialize buffer. */
pos = 0;
%}
TRACE
%{
int count;
/* Flush output buffer if full. */
if(hfile && pos >= bufsize)
{ count = fwrite(obuf, sizeof(Ray), bufsize, hfile);
if(progress)
{
fputc('.', stderr); /* Output progress indicator. */
fflush(stderr);
}
if(count != bufsize)
{
fprintf(stderr, "Shadow_output: Error during write of x-ray file.\n");
exit(1);
}
else
{
pos = 0; /* Reposition at start of buffer */
}
}
/* the variable mcrun_num is used as ray index for Shadow */
obuf[pos] = mcxtrace2shadow(x,y,z,kx,ky,kz,phi,t,Ex,Ey,Ez,p,mcrun_num); /*pos instead of mcrun_num?*/
p_out += p;
p2_out += p*p;
++pos;
%}
FINALLY
%{
int count, dum;
/* Flush output buffer if necessary. */
if(hfile && pos > 0)
{
/* count = fwrite(obuf, sizeof(Ray), pos, hfile); */
for(i=0;i<pos;i++){
fwrite(&reclen, sizeof(int), 1, hfile);
dum = fwrite(&obuf[i], sizeof(Ray), 1, hfile);
fwrite(&reclen, sizeof(int), 1, hfile);
count += dum;
}
if(count != pos)
{
fprintf(stderr, "Shadow_output: Error during write of x-ray event file.\n");
exit(1);
}
}
if(progress)
fprintf(stderr, ".\n"); /* Output final progress indicator. */
if(obuf)
free(obuf);
if(hfile && file)
fclose(hfile);
%}
MCDISPLAY
%{
/* Invisible component. */
%}
END
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