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#ifndef lint
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static const char RCSid[] = "$Id: lookamb.c,v 2.10 2004/03/30 16:13:01 schorsch Exp $";
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#endif
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/*
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* lookamb.c - program to examine ambient components.
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*/
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#include "copyright.h"
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#include "platform.h"
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#include "ray.h"
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#include "ambient.h"
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#include "resolu.h"
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int dataonly = 0;
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int header = 1;
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int reverse = 0;
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AMBVAL av;
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#ifdef NEWAMB
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static void
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lookamb( /* load & convert ambient values from a file */
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FILE *fp
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)
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{
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FVECT norm, uvec;
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while (readambval(&av, fp)) {
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decodedir(norm, av.ndir);
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decodedir(uvec, av.udir);
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if (dataonly) {
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printf("%f\t%f\t%f\t", av.pos[0], av.pos[1], av.pos[2]);
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printf("%f\t%f\t%f\t", norm[0], norm[1], norm[2]);
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printf("%f\t%f\t%f\t", uvec[0], uvec[1], uvec[2]);
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printf("%d\t%f\t%f\t%f\t", av.lvl, av.weight,
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av.rad[0], av.rad[1]);
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printf("%e\t%e\t%e\t", colval(av.val,RED),
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colval(av.val,GRN),
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colval(av.val,BLU));
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printf("%f\t%f\t", av.gpos[0], av.gpos[1]);
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printf("%f\t%f\n", av.gdir[0], av.gdir[1]);
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} else {
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printf("\nPosition:\t%f\t%f\t%f\n", av.pos[0],
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av.pos[1], av.pos[2]);
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printf("Normal:\t%f\t%f\t%f\n",
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norm[0], norm[1], norm[2]);
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printf("Uvector:\t%f\t%f\t%f\n",
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uvec[0], uvec[1], uvec[2]);
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printf("Lvl,Wt,Urad,Vrad:\t%d\t\t%f\t%f\n", av.lvl,
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av.weight, av.rad[0], av.rad[1]);
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printf("Value:\t\t%e\t%e\t%e\n", colval(av.val,RED),
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colval(av.val,GRN), colval(av.val,BLU));
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printf("Pos.Grad:\t%f\t%f\n", av.gpos[0], av.gpos[1]);
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printf("Dir.Grad:\t%f\t%f\n", av.gdir[0], av.gdir[1]);
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}
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if (ferror(stdout))
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exit(1);
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}
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}
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static void
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writamb( /* write binary ambient values to stdout */
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FILE *fp
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)
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{
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FVECT norm;
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for ( ; ; ) {
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if (!dataonly)
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fscanf(fp, "%*s");
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if (fscanf(fp, "%f %f %f",
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&av.pos[0], &av.pos[1], &av.pos[2]) != 3)
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return;
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if (!dataonly)
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fscanf(fp, "%*s");
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if (fscanf(fp, FVFORMAT, &norm[0], &norm[1], &norm[2]) != 3)
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return;
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av.ndir = encodedir(norm);
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if (!dataonly)
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fscanf(fp, "%*s");
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if (fscanf(fp, FVFORMAT, &norm[0], &norm[1], &norm[2]) != 3)
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return;
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av.udir = encodedir(norm);
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if (!dataonly)
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fscanf(fp, "%*s");
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if (fscanf(fp, "%d %f %f %f", &av.lvl, &av.weight,
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&av.rad[0], &av.rad[1]) != 4)
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return;
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if (!dataonly)
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fscanf(fp, "%*s");
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if (fscanf(fp, "%f %f %f",
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&av.val[RED], &av.val[GRN], &av.val[BLU]) != 3)
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return;
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if (!dataonly)
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fscanf(fp, "%*s");
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if (fscanf(fp, "%f %f", &av.gpos[0], &av.gpos[1]) != 2)
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return;
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if (!dataonly)
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fscanf(fp, "%*s");
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if (fscanf(fp, "%f %f", &av.gdir[0], &av.gdir[1]) != 2)
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return;
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av.next = NULL;
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writambval(&av, stdout);
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if (ferror(stdout))
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exit(1);
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}
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}
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#else /* ! NEWAMB */
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static void
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lookamb( /* get ambient values from a file */
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FILE *fp
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)
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{
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while (readambval(&av, fp)) {
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if (dataonly) {
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printf("%f\t%f\t%f\t", av.pos[0], av.pos[1], av.pos[2]);
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printf("%f\t%f\t%f\t", av.dir[0], av.dir[1], av.dir[2]);
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printf("%d\t%f\t%f\t", av.lvl, av.weight, av.rad);
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printf("%e\t%e\t%e\t", colval(av.val,RED),
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colval(av.val,GRN),
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colval(av.val,BLU));
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printf("%f\t%f\t%f\t", av.gpos[0],
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av.gpos[1], av.gpos[2]);
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printf("%f\t%f\t%f\n", av.gdir[0],
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av.gdir[1], av.gdir[2]);
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} else {
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printf("\nPosition:\t%f\t%f\t%f\n", av.pos[0],
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av.pos[1], av.pos[2]);
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printf("Direction:\t%f\t%f\t%f\n", av.dir[0],
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av.dir[1], av.dir[2]);
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printf("Lvl,Wt,Rad:\t%d\t\t%f\t%f\n", av.lvl,
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av.weight, av.rad);
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printf("Value:\t\t%e\t%e\t%e\n", colval(av.val,RED),
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colval(av.val,GRN), colval(av.val,BLU));
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printf("Pos.Grad:\t%f\t%f\t%f\n", av.gpos[0],
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av.gpos[1], av.gpos[2]);
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printf("Dir.Grad:\t%f\t%f\t%f\n", av.gdir[0],
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av.gdir[1], av.gdir[2]);
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}
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if (ferror(stdout))
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exit(1);
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}
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}
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static void
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writamb( /* write binary ambient values */
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FILE *fp
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)
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{
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for ( ; ; ) {
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if (!dataonly)
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fscanf(fp, "%*s");
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if (fscanf(fp, "%f %f %f",
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&av.pos[0], &av.pos[1], &av.pos[2]) != 3)
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return;
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if (!dataonly)
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fscanf(fp, "%*s");
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if (fscanf(fp, "%f %f %f",
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&av.dir[0], &av.dir[1], &av.dir[2]) != 3)
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return;
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if (!dataonly)
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fscanf(fp, "%*s");
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if (fscanf(fp, "%d %f %f",
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&av.lvl, &av.weight, &av.rad) != 3)
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return;
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if (!dataonly)
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fscanf(fp, "%*s");
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if (fscanf(fp, "%f %f %f",
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&av.val[RED], &av.val[GRN], &av.val[BLU]) != 3)
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return;
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if (!dataonly)
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fscanf(fp, "%*s");
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if (fscanf(fp, "%f %f %f",
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&av.gpos[0], &av.gpos[1], &av.gpos[2]) != 3)
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return;
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if (!dataonly)
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fscanf(fp, "%*s");
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if (fscanf(fp, "%f %f %f",
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&av.gdir[0], &av.gdir[1], &av.gdir[2]) != 3)
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return;
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av.next = NULL;
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writambval(&av, stdout);
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if (ferror(stdout))
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exit(1);
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}
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}
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#endif /* ! NEWAMB */
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int
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main( /* load ambient values from a file */
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int argc,
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char *argv[]
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)
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{
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FILE *fp;
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int i;
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for (i = 1; i < argc; i++)
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if (argv[i][0] == '-')
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switch (argv[i][1]) {
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case 'd':
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dataonly = 1;
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break;
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case 'r':
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reverse = 1;
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break;
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case 'h':
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header = 0;
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break;
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default:
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fprintf(stderr, "%s: unknown option '%s'\n",
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argv[0], argv[i]);
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return(1);
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}
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else
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break;
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if (i >= argc)
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fp = stdin;
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else if ((fp = fopen(argv[i], "r")) == NULL) {
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fprintf(stderr, "%s: file not found\n", argv[i]);
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return(1);
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}
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if (reverse) {
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if (header) {
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if (checkheader(fp, "ascii", stdout) < 0)
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goto formaterr;
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} else {
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newheader("RADIANCE", stdout);
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printargs(argc, argv, stdout);
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}
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fputformat(AMBFMT, stdout);
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putchar('\n');
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SET_FILE_BINARY(stdout);
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putambmagic(stdout);
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writamb(fp);
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} else {
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SET_FILE_BINARY(fp);
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if (checkheader(fp, AMBFMT, header ? stdout : (FILE *)NULL) < 0)
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goto formaterr;
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if (!hasambmagic(fp))
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goto formaterr;
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if (header) {
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fputformat("ascii", stdout);
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putchar('\n');
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}
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lookamb(fp);
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}
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fclose(fp);
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return(0);
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formaterr:
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fprintf(stderr, "%s: format error on input\n", argv[0]);
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exit(1);
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}
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