| 1 |
greg |
2.1 |
#ifndef lint
|
| 2 |
greg |
2.2 |
static const char RCSid[] = "$Id: pabopto2xyz.c,v 2.1 2016/07/27 18:05:53 greg Exp $";
|
| 3 |
greg |
2.1 |
#endif
|
| 4 |
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/*
|
| 5 |
|
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* Combine PAB-Opto data files for color (CIE-XYZ) interpolation.
|
| 6 |
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*
|
| 7 |
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* G. Ward
|
| 8 |
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*/
|
| 9 |
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|
|
| 10 |
|
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#define _USE_MATH_DEFINES
|
| 11 |
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#include "rtio.h"
|
| 12 |
|
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#include <stdlib.h>
|
| 13 |
|
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#include <ctype.h>
|
| 14 |
|
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#include <math.h>
|
| 15 |
|
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#include "interp2d.h"
|
| 16 |
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|
| 17 |
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/* #define DEBUG 1 */
|
| 18 |
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|
| 19 |
|
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#ifndef MAX_INPUTS
|
| 20 |
|
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#define MAX_INPUTS 512 /* can handle this many files per chan */
|
| 21 |
|
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#endif
|
| 22 |
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|
| 23 |
|
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#define ANGRES 256 /* resolution per 180 degrees */
|
| 24 |
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|
|
| 25 |
|
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/* Input file header information */
|
| 26 |
|
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typedef struct {
|
| 27 |
|
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const char *fname; /* input file path */
|
| 28 |
|
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double theta, phi; /* input angles (degrees) */
|
| 29 |
|
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double up_phi; /* azimuth for "up" direction */
|
| 30 |
|
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int igp[2]; /* input grid position */
|
| 31 |
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int isDSF; /* data is DSF (rather than BSDF)? */
|
| 32 |
|
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int ndata; /* number of data points (or 0) */
|
| 33 |
|
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long dstart; /* data start offset in file */
|
| 34 |
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} PGINPUT;
|
| 35 |
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|
| 36 |
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/* 2-D interpolant for a particular incident direction */
|
| 37 |
|
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typedef struct {
|
| 38 |
|
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INTERP2 *ip2; /* 2-D interpolatiing function */
|
| 39 |
|
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float *va; /* corresponding value array */
|
| 40 |
|
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} PGINTERP;
|
| 41 |
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|
| 42 |
|
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extern void SDdisk2square(double sq[2], double diskx, double disky);
|
| 43 |
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|
| 44 |
|
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char *progname; /* global argv[0] */
|
| 45 |
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|
| 46 |
greg |
2.2 |
int incident_side = 0; /* signum(intheta) */
|
| 47 |
|
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int exiting_side = 0; /* signum(outtheta) */
|
| 48 |
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|
|
| 49 |
greg |
2.1 |
int nprocs = 1; /* number of processes to run */
|
| 50 |
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|
|
| 51 |
|
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int nchild = 0; /* number of children (-1 in child) */
|
| 52 |
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|
|
| 53 |
|
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char *basename = "pabopto_xyz";
|
| 54 |
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|
| 55 |
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/* color conversion matrix */
|
| 56 |
|
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double sens2xyz[3][3] = {
|
| 57 |
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8.7539e-01, 3.5402e-02, 9.0381e-02,
|
| 58 |
|
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1.3463e+00, -3.9082e-01, 7.2721e-02,
|
| 59 |
|
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2.7306e-01, -2.1111e-01, 1.1014e+00,
|
| 60 |
|
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};
|
| 61 |
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|
| 62 |
|
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#if defined(_WIN32) || defined(_WIN64)
|
| 63 |
|
|
|
| 64 |
|
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#define await_children(n) (void)(n)
|
| 65 |
|
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#define run_subprocess() 0
|
| 66 |
|
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#define end_subprocess() (void)0
|
| 67 |
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|
| 68 |
|
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#else /* ! _WIN32 */
|
| 69 |
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|
|
| 70 |
|
|
#include <unistd.h>
|
| 71 |
|
|
#include <sys/wait.h>
|
| 72 |
|
|
|
| 73 |
|
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/* Wait for the specified number of child processes to complete */
|
| 74 |
|
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static void
|
| 75 |
|
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await_children(int n)
|
| 76 |
|
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{
|
| 77 |
|
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int exit_status = 0;
|
| 78 |
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|
|
| 79 |
|
|
if (n > nchild)
|
| 80 |
|
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n = nchild;
|
| 81 |
|
|
while (n-- > 0) {
|
| 82 |
|
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int status;
|
| 83 |
|
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if (wait(&status) < 0) {
|
| 84 |
|
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fprintf(stderr, "%s: missing child(ren)!\n", progname);
|
| 85 |
|
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nchild = 0;
|
| 86 |
|
|
break;
|
| 87 |
|
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}
|
| 88 |
|
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--nchild;
|
| 89 |
|
|
if (status) { /* something wrong */
|
| 90 |
|
|
if ((status = WEXITSTATUS(status)))
|
| 91 |
|
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exit_status = status;
|
| 92 |
|
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else
|
| 93 |
|
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exit_status += !exit_status;
|
| 94 |
|
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fprintf(stderr, "%s: subprocess died\n", progname);
|
| 95 |
|
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n = nchild; /* wait for the rest */
|
| 96 |
|
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}
|
| 97 |
|
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}
|
| 98 |
|
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if (exit_status)
|
| 99 |
|
|
exit(exit_status);
|
| 100 |
|
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}
|
| 101 |
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|
| 102 |
|
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/* Start child process if multiprocessing selected */
|
| 103 |
|
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static pid_t
|
| 104 |
|
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run_subprocess(void)
|
| 105 |
|
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{
|
| 106 |
|
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int status;
|
| 107 |
|
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pid_t pid;
|
| 108 |
|
|
|
| 109 |
|
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if (nprocs <= 1) /* any children requested? */
|
| 110 |
|
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return(0);
|
| 111 |
|
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await_children(nchild + 1 - nprocs); /* free up child process */
|
| 112 |
|
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if ((pid = fork())) {
|
| 113 |
|
|
if (pid < 0) {
|
| 114 |
|
|
fprintf(stderr, "%s: cannot fork subprocess\n",
|
| 115 |
|
|
progname);
|
| 116 |
|
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await_children(nchild);
|
| 117 |
|
|
exit(1);
|
| 118 |
|
|
}
|
| 119 |
|
|
++nchild; /* subprocess started */
|
| 120 |
|
|
return(pid);
|
| 121 |
|
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}
|
| 122 |
|
|
nchild = -1;
|
| 123 |
|
|
return(0); /* put child to work */
|
| 124 |
|
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}
|
| 125 |
|
|
|
| 126 |
|
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/* If we are in subprocess, call exit */
|
| 127 |
|
|
#define end_subprocess() if (nchild < 0) _exit(0); else
|
| 128 |
|
|
|
| 129 |
|
|
#endif /* ! _WIN32 */
|
| 130 |
|
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|
| 131 |
|
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/* Compute square location from normalized input/output vector */
|
| 132 |
|
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static void
|
| 133 |
|
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sq_from_ang(double sq[2], double theta, double phi)
|
| 134 |
|
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{
|
| 135 |
|
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double vec[3];
|
| 136 |
|
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double norm;
|
| 137 |
|
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/* uniform hemispherical projection */
|
| 138 |
|
|
vec[2] = sin(M_PI/180.*theta);
|
| 139 |
|
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vec[0] = cos(M_PI/180.*phi)*vec[2];
|
| 140 |
|
|
vec[1] = sin(M_PI/180.*phi)*vec[2];
|
| 141 |
|
|
vec[2] = sqrt(1. - vec[2]*vec[2]);
|
| 142 |
|
|
norm = 1./sqrt(1. + vec[2]);
|
| 143 |
|
|
|
| 144 |
|
|
SDdisk2square(sq, vec[0]*norm, vec[1]*norm);
|
| 145 |
|
|
}
|
| 146 |
|
|
|
| 147 |
|
|
/* Compute quantized grid position from normalized input/output vector */
|
| 148 |
|
|
static void
|
| 149 |
|
|
pos_from_ang(int gp[2], double theta, double phi)
|
| 150 |
|
|
{
|
| 151 |
|
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double sq[2];
|
| 152 |
|
|
|
| 153 |
|
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sq_from_ang(sq, theta, phi);
|
| 154 |
|
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gp[0] = (int)(sq[0]*ANGRES);
|
| 155 |
|
|
gp[1] = (int)(sq[1]*ANGRES);
|
| 156 |
|
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}
|
| 157 |
|
|
|
| 158 |
|
|
/* Compare incident angles */
|
| 159 |
|
|
static int
|
| 160 |
|
|
cmp_indir(const void *p1, const void *p2)
|
| 161 |
|
|
{
|
| 162 |
|
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const PGINPUT *inp1 = (const PGINPUT *)p1;
|
| 163 |
|
|
const PGINPUT *inp2 = (const PGINPUT *)p2;
|
| 164 |
|
|
int ydif;
|
| 165 |
|
|
|
| 166 |
|
|
if (!inp1->dstart) /* put terminator last */
|
| 167 |
|
|
return(inp2->dstart > 0);
|
| 168 |
|
|
if (!inp2->dstart)
|
| 169 |
|
|
return(-1);
|
| 170 |
|
|
|
| 171 |
|
|
ydif = inp1->igp[1] - inp2->igp[1];
|
| 172 |
|
|
if (ydif)
|
| 173 |
|
|
return(ydif);
|
| 174 |
|
|
|
| 175 |
|
|
return(inp1->igp[0] - inp2->igp[0]);
|
| 176 |
|
|
}
|
| 177 |
|
|
|
| 178 |
|
|
/* Prepare a PAB-Opto input file by reading its header */
|
| 179 |
|
|
static int
|
| 180 |
|
|
init_pabopto_inp(PGINPUT *pgi, const char *fname)
|
| 181 |
|
|
{
|
| 182 |
|
|
FILE *fp = fopen(fname, "r");
|
| 183 |
|
|
char buf[2048];
|
| 184 |
|
|
int c;
|
| 185 |
|
|
|
| 186 |
|
|
if (fp == NULL) {
|
| 187 |
|
|
fputs(fname, stderr);
|
| 188 |
|
|
fputs(": cannot open\n", stderr);
|
| 189 |
|
|
return(0);
|
| 190 |
|
|
}
|
| 191 |
|
|
pgi->fname = fname;
|
| 192 |
|
|
pgi->isDSF = -1;
|
| 193 |
|
|
pgi->ndata = 0;
|
| 194 |
|
|
pgi->up_phi = 0;
|
| 195 |
|
|
pgi->theta = pgi->phi = -10001.;
|
| 196 |
|
|
/* read header information */
|
| 197 |
|
|
while ((c = getc(fp)) == '#' || c == EOF) {
|
| 198 |
|
|
char typ[64];
|
| 199 |
|
|
if (fgets(buf, sizeof(buf), fp) == NULL) {
|
| 200 |
|
|
fputs(fname, stderr);
|
| 201 |
|
|
fputs(": unexpected EOF\n", stderr);
|
| 202 |
|
|
fclose(fp);
|
| 203 |
|
|
return(0);
|
| 204 |
|
|
}
|
| 205 |
|
|
if (sscanf(buf, "colorimetry: %s", typ) == 1) {
|
| 206 |
|
|
if (!strcasecmp(typ, "CIE-XYZ")) {
|
| 207 |
|
|
fputs(fname, stderr);
|
| 208 |
|
|
fputs(": already in XYZ color space!\n", stderr);
|
| 209 |
|
|
return(0);
|
| 210 |
|
|
}
|
| 211 |
|
|
continue;
|
| 212 |
|
|
}
|
| 213 |
|
|
if (sscanf(buf, "datapoints_in_file:%d", &pgi->ndata) == 1)
|
| 214 |
|
|
continue;
|
| 215 |
|
|
if (sscanf(buf, "format: theta phi %s", typ) == 1) {
|
| 216 |
|
|
if (!strcasecmp(typ, "DSF"))
|
| 217 |
|
|
pgi->isDSF = 1;
|
| 218 |
|
|
else if (!strcasecmp(typ, "BSDF") ||
|
| 219 |
|
|
!strcasecmp(typ, "BRDF") ||
|
| 220 |
|
|
!strcasecmp(typ, "BTDF"))
|
| 221 |
|
|
pgi->isDSF = 0;
|
| 222 |
|
|
continue;
|
| 223 |
|
|
}
|
| 224 |
|
|
if (sscanf(buf, "upphi %lf", &pgi->up_phi) == 1)
|
| 225 |
|
|
continue;
|
| 226 |
|
|
if (sscanf(buf, "intheta %lf", &pgi->theta) == 1)
|
| 227 |
|
|
continue;
|
| 228 |
|
|
if (sscanf(buf, "inphi %lf", &pgi->phi) == 1)
|
| 229 |
|
|
continue;
|
| 230 |
|
|
if (sscanf(buf, "incident_angle %lf %lf",
|
| 231 |
|
|
&pgi->theta, &pgi->phi) == 2)
|
| 232 |
|
|
continue;
|
| 233 |
|
|
}
|
| 234 |
|
|
pgi->dstart = ftell(fp) - 1;
|
| 235 |
|
|
fclose(fp);
|
| 236 |
|
|
if (pgi->isDSF < 0) {
|
| 237 |
|
|
fputs(fname, stderr);
|
| 238 |
|
|
fputs(": unknown format\n", stderr);
|
| 239 |
|
|
return(0);
|
| 240 |
|
|
}
|
| 241 |
|
|
if ((pgi->theta < -10000.) | (pgi->phi < -10000.)) {
|
| 242 |
|
|
fputs(fname, stderr);
|
| 243 |
|
|
fputs(": unknown incident angle\n", stderr);
|
| 244 |
|
|
return(0);
|
| 245 |
|
|
}
|
| 246 |
greg |
2.2 |
if (!incident_side) {
|
| 247 |
|
|
incident_side = (pgi->theta < 90.) ? 1 : -1;
|
| 248 |
|
|
} else if ((incident_side > 0) ^ (pgi->theta < 90.)) {
|
| 249 |
|
|
fputs(fname, stderr);
|
| 250 |
|
|
fputs(": incident on opposite side of surface\n", stderr);
|
| 251 |
|
|
return(0);
|
| 252 |
|
|
}
|
| 253 |
greg |
2.1 |
/* convert angle to grid position */
|
| 254 |
|
|
pos_from_ang(pgi->igp, pgi->theta, pgi->phi);
|
| 255 |
|
|
return(1);
|
| 256 |
|
|
}
|
| 257 |
|
|
|
| 258 |
|
|
/* Load interpolating function for a particular incident direction */
|
| 259 |
|
|
static int
|
| 260 |
|
|
load_interp(PGINTERP *pgint, const int igp[2], const PGINPUT *pginp)
|
| 261 |
|
|
{
|
| 262 |
|
|
int nv = 0;
|
| 263 |
|
|
int nread = 0;
|
| 264 |
|
|
pgint->ip2 = NULL;
|
| 265 |
|
|
pgint->va = NULL;
|
| 266 |
|
|
/* load input file(s) */
|
| 267 |
|
|
while (pginp->dstart && (pginp->igp[0] == igp[0]) &
|
| 268 |
|
|
(pginp->igp[1] == igp[1])) {
|
| 269 |
|
|
FILE *fp = fopen(pginp->fname, "r");
|
| 270 |
|
|
double theta, phi;
|
| 271 |
|
|
float val;
|
| 272 |
|
|
|
| 273 |
|
|
if (fp == NULL || fseek(fp, pginp->dstart, SEEK_SET) < 0) {
|
| 274 |
|
|
fputs(pginp->fname, stderr);
|
| 275 |
|
|
fputs(": cannot re-open input file!\n", stderr);
|
| 276 |
|
|
return(0);
|
| 277 |
|
|
}
|
| 278 |
|
|
#ifdef DEBUG
|
| 279 |
|
|
fprintf(stderr, "Loading channel from '%s'\n", pginp->fname);
|
| 280 |
|
|
#endif
|
| 281 |
|
|
while (fscanf(fp, "%lf %lf %f", &theta, &phi, &val) == 3) {
|
| 282 |
|
|
double sq[2];
|
| 283 |
|
|
if (nread >= nv) {
|
| 284 |
|
|
if (pginp->ndata > 0)
|
| 285 |
|
|
nv += pginp->ndata;
|
| 286 |
|
|
else
|
| 287 |
|
|
nv += (nv>>1) + 1024;
|
| 288 |
|
|
pgint->ip2 = interp2_realloc(pgint->ip2, nv);
|
| 289 |
|
|
pgint->va = (float *)realloc(pgint->va, sizeof(float)*nv);
|
| 290 |
|
|
if ((pgint->ip2 == NULL) | (pgint->va == NULL))
|
| 291 |
|
|
goto memerr;
|
| 292 |
|
|
}
|
| 293 |
greg |
2.2 |
if (!exiting_side) {
|
| 294 |
|
|
exiting_side = (theta < 90.) ? 1 : -1;
|
| 295 |
|
|
} else if ((exiting_side > 0) ^ (theta < 90.)) {
|
| 296 |
|
|
fputs(pginp->fname, stderr);
|
| 297 |
|
|
fputs(": exiting measurement on wrong side\n", stderr);
|
| 298 |
|
|
return(0);
|
| 299 |
|
|
}
|
| 300 |
greg |
2.1 |
sq_from_ang(sq, theta, phi);
|
| 301 |
|
|
pgint->ip2->spt[nread][0] = sq[0]*ANGRES;
|
| 302 |
|
|
pgint->ip2->spt[nread][1] = sq[1]*ANGRES;
|
| 303 |
|
|
pgint->va[nread++] = val;
|
| 304 |
|
|
}
|
| 305 |
|
|
fclose(fp);
|
| 306 |
|
|
++pginp; /* advance to next input */
|
| 307 |
|
|
}
|
| 308 |
|
|
if (nv > nread) { /* fix array sizes */
|
| 309 |
|
|
pgint->ip2 = interp2_realloc(pgint->ip2, nread);
|
| 310 |
|
|
pgint->va = (float *)realloc(pgint->va, nread);
|
| 311 |
|
|
if ((pgint->ip2 == NULL) | (pgint->va == NULL))
|
| 312 |
|
|
goto memerr;
|
| 313 |
|
|
}
|
| 314 |
|
|
return(1);
|
| 315 |
|
|
memerr:
|
| 316 |
|
|
fputs(progname, stderr);
|
| 317 |
|
|
fputs(": Out of memory in load_interp()!\n", stderr);
|
| 318 |
|
|
return(0);
|
| 319 |
|
|
}
|
| 320 |
|
|
|
| 321 |
|
|
/* Interpolate value at the given position */
|
| 322 |
|
|
static double
|
| 323 |
|
|
interp2val(const PGINTERP *pgint, double px, double py)
|
| 324 |
|
|
{
|
| 325 |
|
|
#define NSMP 12
|
| 326 |
|
|
float wt[NSMP];
|
| 327 |
|
|
int si[NSMP];
|
| 328 |
|
|
int n = interp2_topsamp(wt, si, NSMP, pgint->ip2, px, py);
|
| 329 |
|
|
double v = .0;
|
| 330 |
|
|
|
| 331 |
|
|
while (n-- > 0)
|
| 332 |
|
|
v += wt[n]*pgint->va[si[n]];
|
| 333 |
|
|
|
| 334 |
|
|
return(v);
|
| 335 |
|
|
#undef NSMP
|
| 336 |
|
|
}
|
| 337 |
|
|
|
| 338 |
|
|
static void
|
| 339 |
|
|
free_interp(PGINTERP *pgint)
|
| 340 |
|
|
{
|
| 341 |
|
|
interp2_free(pgint->ip2);
|
| 342 |
|
|
pgint->ip2 = NULL;
|
| 343 |
|
|
free(pgint->va);
|
| 344 |
|
|
pgint->va = NULL;
|
| 345 |
|
|
}
|
| 346 |
|
|
|
| 347 |
|
|
/* Interpolate the given incident direction to an output file */
|
| 348 |
|
|
static int
|
| 349 |
|
|
interp_xyz(const PGINPUT *inp0, int nf, const PGINTERP *int1, const PGINTERP *int2)
|
| 350 |
|
|
{
|
| 351 |
|
|
int dtotal = 0;
|
| 352 |
|
|
char outfname[256];
|
| 353 |
|
|
FILE *ofp;
|
| 354 |
|
|
int i;
|
| 355 |
|
|
|
| 356 |
|
|
if (nf <= 0)
|
| 357 |
|
|
return(0);
|
| 358 |
|
|
/* create output file & write header */
|
| 359 |
|
|
sprintf(outfname, "%s_t%03.0fp%03.0f.txt", basename, inp0->theta, inp0->phi);
|
| 360 |
|
|
if ((ofp = fopen(outfname, "w")) == NULL) {
|
| 361 |
|
|
fputs(outfname, stderr);
|
| 362 |
|
|
fputs(": cannot open for writing\n", stderr);
|
| 363 |
|
|
return(0);
|
| 364 |
|
|
}
|
| 365 |
|
|
fprintf(ofp, "#data written using %s\n", progname);
|
| 366 |
|
|
fprintf(ofp, "#incident_angle %g %g\n", inp0->theta, inp0->phi);
|
| 367 |
|
|
fprintf(ofp, "#intheta %g\n", inp0->theta);
|
| 368 |
|
|
fprintf(ofp, "#inphi %g\n", inp0->phi);
|
| 369 |
|
|
fprintf(ofp, "#upphi %g\n", inp0->up_phi);
|
| 370 |
|
|
fprintf(ofp, "#colorimetry: CIE-XYZ\n");
|
| 371 |
|
|
for (i = nf; i--; )
|
| 372 |
|
|
dtotal += inp0[i].ndata;
|
| 373 |
|
|
if (dtotal > 0)
|
| 374 |
|
|
fprintf(ofp, "#datapoints_in_file: %d\n", dtotal);
|
| 375 |
|
|
fprintf(ofp, "#format: theta phi %s\n", inp0->isDSF ? "DSF" : "BSDF");
|
| 376 |
|
|
dtotal = 0;
|
| 377 |
|
|
while (nf-- > 0) { /* load channel 1 file(s) */
|
| 378 |
|
|
FILE *ifp = fopen(inp0->fname, "r");
|
| 379 |
|
|
double theta, phi, val[3], sq[2];
|
| 380 |
|
|
|
| 381 |
|
|
if (ifp == NULL || fseek(ifp, inp0->dstart, SEEK_SET) < 0) {
|
| 382 |
|
|
fputs(inp0->fname, stderr);
|
| 383 |
|
|
fputs(": cannot re-open input file!\n", stderr);
|
| 384 |
|
|
return(0);
|
| 385 |
|
|
}
|
| 386 |
|
|
#ifdef DEBUG
|
| 387 |
|
|
fprintf(stderr, "Adding points from '%s' to '%s'\n",
|
| 388 |
|
|
inp0->fname, outfname);
|
| 389 |
|
|
#endif
|
| 390 |
|
|
while (fscanf(ifp, "%lf %lf %lf", &theta, &phi, &val[0]) == 3) {
|
| 391 |
greg |
2.2 |
if (!exiting_side) {
|
| 392 |
|
|
exiting_side = (theta < 90.) ? 1 : -1;
|
| 393 |
|
|
} else if ((exiting_side > 0) ^ (theta < 90.)) {
|
| 394 |
|
|
fputs(inp0->fname, stderr);
|
| 395 |
|
|
fputs(": exiting measurement on wrong side\n", stderr);
|
| 396 |
|
|
return(0);
|
| 397 |
|
|
}
|
| 398 |
greg |
2.1 |
sq_from_ang(sq, theta, phi);
|
| 399 |
|
|
val[1] = interp2val(int1, sq[0]*ANGRES, sq[1]*ANGRES);
|
| 400 |
|
|
val[2] = interp2val(int2, sq[0]*ANGRES, sq[1]*ANGRES);
|
| 401 |
|
|
fprintf(ofp, "%.3f %.3f", theta, phi);
|
| 402 |
|
|
for (i = 0; i < 3; i++)
|
| 403 |
|
|
fprintf(ofp, " %.4f",
|
| 404 |
|
|
sens2xyz[i][0]*val[0] +
|
| 405 |
|
|
sens2xyz[i][1]*val[1] +
|
| 406 |
|
|
sens2xyz[i][2]*val[2]);
|
| 407 |
|
|
fputc('\n', ofp);
|
| 408 |
|
|
++dtotal;
|
| 409 |
|
|
}
|
| 410 |
|
|
fclose(ifp);
|
| 411 |
|
|
++inp0; /* advance to next input file */
|
| 412 |
|
|
}
|
| 413 |
|
|
#ifdef DEBUG
|
| 414 |
|
|
fprintf(stderr, "Wrote %d values to '%s'\n", dtotal, outfname);
|
| 415 |
|
|
#endif
|
| 416 |
|
|
return(fclose(ofp) == 0);
|
| 417 |
|
|
}
|
| 418 |
|
|
|
| 419 |
|
|
/* Do next incident direction and advance counters */
|
| 420 |
|
|
static int
|
| 421 |
|
|
advance_incidence(PGINPUT *slist[3], int ndx[3])
|
| 422 |
|
|
{
|
| 423 |
|
|
const int i0 = ndx[0];
|
| 424 |
|
|
PGINTERP pgi1, pgi2;
|
| 425 |
|
|
int c;
|
| 426 |
|
|
/* match up directions */
|
| 427 |
|
|
while ((c = cmp_indir(slist[1]+ndx[1], slist[0]+ndx[0])) < 0)
|
| 428 |
|
|
ndx[1]++;
|
| 429 |
|
|
if (c) {
|
| 430 |
|
|
fputs(slist[0][ndx[0]].fname, stderr);
|
| 431 |
|
|
fputs(": warning - missing channel 2 at this incidence\n", stderr);
|
| 432 |
|
|
do
|
| 433 |
|
|
++ndx[0];
|
| 434 |
|
|
while (!cmp_indir(slist[0]+ndx[0], slist[0]+i0));
|
| 435 |
|
|
return(0);
|
| 436 |
|
|
}
|
| 437 |
|
|
while ((c = cmp_indir(slist[2]+ndx[2], slist[0]+ndx[0])) < 0)
|
| 438 |
|
|
ndx[2]++;
|
| 439 |
|
|
if (c) {
|
| 440 |
|
|
fputs(slist[0][ndx[0]].fname, stderr);
|
| 441 |
|
|
fputs(": warning - missing channel 3 at this incidence\n", stderr);
|
| 442 |
|
|
do
|
| 443 |
|
|
++ndx[0];
|
| 444 |
|
|
while (!cmp_indir(slist[0]+ndx[0], slist[0]+i0));
|
| 445 |
|
|
return(0);
|
| 446 |
|
|
}
|
| 447 |
|
|
do /* advance first channel index */
|
| 448 |
|
|
++ndx[0];
|
| 449 |
|
|
while (!cmp_indir(slist[0]+ndx[0], slist[0]+i0));
|
| 450 |
|
|
|
| 451 |
|
|
if (run_subprocess()) /* fork here if multiprocessing */
|
| 452 |
|
|
return(1);
|
| 453 |
|
|
/* interpolate channels 2 & 3 */
|
| 454 |
|
|
load_interp(&pgi1, slist[0][i0].igp, slist[1]+ndx[1]);
|
| 455 |
|
|
load_interp(&pgi2, slist[0][i0].igp, slist[2]+ndx[2]);
|
| 456 |
|
|
if (!interp_xyz(slist[0]+i0, ndx[0]-i0, &pgi1, &pgi2))
|
| 457 |
|
|
return(-1);
|
| 458 |
|
|
end_subprocess();
|
| 459 |
|
|
free_interp(&pgi1);
|
| 460 |
|
|
free_interp(&pgi2);
|
| 461 |
|
|
return(1);
|
| 462 |
|
|
}
|
| 463 |
|
|
|
| 464 |
|
|
/* Read in single-channel PAB-Opto BSDF files and output XYZ versions */
|
| 465 |
|
|
int
|
| 466 |
|
|
main(int argc, char *argv[])
|
| 467 |
|
|
{
|
| 468 |
|
|
char *flist[MAX_INPUTS];
|
| 469 |
|
|
PGINPUT *slist[3];
|
| 470 |
|
|
int i, j;
|
| 471 |
|
|
int ndx[3];
|
| 472 |
|
|
/* get options */
|
| 473 |
|
|
progname = argv[0];
|
| 474 |
|
|
for (i = 1; i < argc-3 && argv[i][0] == '-'; i++)
|
| 475 |
|
|
switch (argv[i][1]) {
|
| 476 |
|
|
case 'n':
|
| 477 |
|
|
nprocs = atoi(argv[++i]);
|
| 478 |
|
|
break;
|
| 479 |
|
|
case 'm':
|
| 480 |
|
|
if (i >= argc-(3+9))
|
| 481 |
|
|
goto userr;
|
| 482 |
|
|
for (j = 0; j < 3; j++) {
|
| 483 |
|
|
sens2xyz[j][0] = atof(argv[++i]);
|
| 484 |
|
|
sens2xyz[j][1] = atof(argv[++i]);
|
| 485 |
|
|
sens2xyz[j][2] = atof(argv[++i]);
|
| 486 |
|
|
}
|
| 487 |
|
|
break;
|
| 488 |
|
|
case 'o':
|
| 489 |
|
|
basename = argv[++i];
|
| 490 |
|
|
break;
|
| 491 |
|
|
default:
|
| 492 |
|
|
goto userr;
|
| 493 |
|
|
}
|
| 494 |
|
|
if (i > argc-3)
|
| 495 |
|
|
goto userr;
|
| 496 |
|
|
for (j = 0; j < 3; j++) { /* prep input channels */
|
| 497 |
|
|
int k, n;
|
| 498 |
|
|
n = wordfile(flist, MAX_INPUTS, argv[i+j]);
|
| 499 |
|
|
if (n <= 0) {
|
| 500 |
|
|
fputs(argv[i+j], stderr);
|
| 501 |
|
|
fputs(": cannot load input file names\n", stderr);
|
| 502 |
|
|
return(1);
|
| 503 |
|
|
}
|
| 504 |
|
|
slist[j] = (PGINPUT *)malloc(sizeof(PGINPUT)*(n+1));
|
| 505 |
|
|
if (slist[j] == NULL) {
|
| 506 |
|
|
fputs(argv[0], stderr);
|
| 507 |
|
|
fputs(": out of memory!\n", stderr);
|
| 508 |
|
|
return(1);
|
| 509 |
|
|
}
|
| 510 |
|
|
#ifdef DEBUG
|
| 511 |
|
|
fprintf(stderr, "Checking %d files from '%s'\n", n, argv[i+j]);
|
| 512 |
|
|
#endif
|
| 513 |
|
|
for (k = 0; k < n; k++)
|
| 514 |
|
|
if (!init_pabopto_inp(slist[j]+k, flist[k]))
|
| 515 |
|
|
return(1);
|
| 516 |
|
|
memset(slist[j]+n, 0, sizeof(PGINPUT));
|
| 517 |
|
|
/* sort by incident direction */
|
| 518 |
|
|
qsort(slist[j], n, sizeof(PGINPUT), cmp_indir);
|
| 519 |
|
|
}
|
| 520 |
|
|
ndx[0]=ndx[1]=ndx[2]=0; /* compile measurements */
|
| 521 |
|
|
while (slist[0][ndx[0]].dstart)
|
| 522 |
|
|
if (advance_incidence(slist, ndx) < 0)
|
| 523 |
|
|
return(1);
|
| 524 |
|
|
await_children(nchild); /* wait for all to finish */
|
| 525 |
|
|
return(0);
|
| 526 |
|
|
userr:
|
| 527 |
|
|
fputs("Usage: ", stderr);
|
| 528 |
|
|
fputs(argv[0], stderr);
|
| 529 |
|
|
fputs(" [-m X1 X2 X3 Y1 Y2 Y3 Z1 Z2 Z3][-o basename][-n nprocs]", stderr);
|
| 530 |
|
|
fputs(" s1files.txt s2files.txt s3files.txt\n", stderr);
|
| 531 |
|
|
return(1);
|
| 532 |
|
|
}
|
