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/* Copyright (c) 1992 Regents of the University of California */ |
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|
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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static const char RCSid[] = "$Id$"; |
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#endif |
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|
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/* |
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* Combine picture files according to calcomp functions. |
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* |
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* 1/4/89 |
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*/ |
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#include "platform.h" |
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#include "standard.h" |
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|
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#include "paths.h" |
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#include "color.h" |
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|
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#include "resolu.h" |
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|
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#include "calcomp.h" |
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|
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#include "view.h" |
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|
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#define MAXINP 32 /* maximum number of input files */ |
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#define WINSIZ 17 /* scanline window size */ |
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#define MAXINP 1024 /* maximum number of input files */ |
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#define WINSIZ 127 /* scanline window size */ |
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#define MIDSCN ((WINSIZ-1)/2+1) |
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|
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struct { |
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int nfiles; /* number of input files */ |
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|
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VIEW *commvp = NULL; /* common view parameters */ |
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|
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char ourfmt[LPICFMT+1] = PICFMT; /* input picture format */ |
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|
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char StandardInput[] = "<stdin>"; |
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char Command[] = "<Command>"; |
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char vcolin[3][4] = {"ri", "gi", "bi"}; |
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char vcolout[3][4] = {"ro", "go", "bo"}; |
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char vbrtout[] = "lo"; |
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char vcolexp[3][4] = {"re", "ge", "be"}; |
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char vbrtexp[] = "le"; |
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char vpixaspect[] = "pa"; |
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|
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char vray[6][4] = {"Ox", "Oy", "Oz", "Dx", "Dy", "Dz"}; |
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char vray[7][4] = {"Ox", "Oy", "Oz", "Dx", "Dy", "Dz", "T"}; |
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|
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char vpsize[] = "S"; |
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|
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char vnfiles[] = "nfiles"; |
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char vwhteff[] = "WE"; |
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char vxmax[] = "xmax"; |
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char vymax[] = "ymax"; |
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char vxres[] = "xres"; |
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|
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char *progname; /* global argv[0] */ |
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|
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int echoheader = 1; |
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int wrongformat = 0; |
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int gotview; |
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|
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FILE *popen(); |
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|
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extern char *emalloc(); |
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static gethfunc headline; |
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static void checkfile(int orig); |
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static double rgb_bright(COLOR clr); |
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static double xyz_bright(COLOR clr); |
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static void init(void); |
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static void combine(void); |
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static void advance(void); |
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static double l_expos(char *nam); |
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static double l_pixaspect(char *nm); |
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static double l_colin(char *nam); |
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static double l_ray(char *nam); |
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static double l_psize(char *nm); |
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|
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main(argc, argv) |
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int argc; |
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char *argv[]; |
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int |
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main( |
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int argc, |
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char *argv[] |
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) |
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{ |
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int original; |
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double f; |
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int a, i; |
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#ifdef MSDOS |
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extern int _fmode; |
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_fmode = O_BINARY; |
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setmode(fileno(stdin), O_BINARY); |
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setmode(fileno(stdout), O_BINARY); |
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#endif |
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int a; |
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|
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SET_DEFAULT_BINARY(); |
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SET_FILE_BINARY(stdin); |
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SET_FILE_BINARY(stdout); |
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progname = argv[0]; |
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esupport |= E_VARIABLE|E_FUNCTION|E_RCONST; |
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esupport &= ~(E_OUTCHAN|E_INCHAN); |
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/* scan options */ |
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for (a = 1; a < argc; a++) { |
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if (argv[a][0] == '-') |
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case 'w': |
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nowarn = !nowarn; |
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continue; |
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case 'h': |
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echoheader = !echoheader; |
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continue; |
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case 'f': |
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case 'e': |
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a++; |
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break; |
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} |
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newheader("RADIANCE", stdout); /* start header */ |
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fputnow(stdout); |
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/* process files */ |
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for (nfiles = 0; nfiles < MAXINP; nfiles++) { |
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setcolor(input[nfiles].coef, 1.0, 1.0, 1.0); |
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setcolor(input[nfiles].expos, 1.0, 1.0, 1.0); |
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copystruct(&input[nfiles].vw, &stdview); |
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input[nfiles].vw = stdview; |
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input[nfiles].pa = 1.0; |
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} |
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nfiles = 0; |
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if (argv[a][0] == '-') |
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switch (argv[a][1]) { |
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case '\0': |
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input[nfiles].name = "<stdin>"; |
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input[nfiles].name = StandardInput; |
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input[nfiles].fp = stdin; |
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break; |
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case 'o': |
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quit(1); |
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} |
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} |
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checkfile(); |
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if (original) { |
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colval(input[nfiles].coef,RED) /= |
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colval(input[nfiles].expos,RED); |
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colval(input[nfiles].coef,GRN) /= |
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colval(input[nfiles].expos,GRN); |
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colval(input[nfiles].coef,BLU) /= |
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colval(input[nfiles].expos,BLU); |
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} |
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checkfile(original); |
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nfiles++; |
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original = 0; |
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} |
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init(); /* set constants */ |
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/* go back and get expressions */ |
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for (a = 1; a < argc; a++) { |
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char *fpath; |
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if (argv[a][0] == '-') |
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switch (argv[a][1]) { |
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case 'x': |
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continue; |
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case 'w': |
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continue; |
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case 'h': |
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continue; |
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case 'f': |
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fcompile(argv[++a]); |
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fpath = getpath(argv[++a], getrlibpath(), 0); |
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if (fpath == NULL) { |
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eputs(argv[0]); |
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eputs(": cannot find file '"); |
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eputs(argv[a]); |
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eputs("'\n"); |
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quit(1); |
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} |
209 |
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fcompile(fpath); |
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continue; |
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case 'e': |
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scompile(argv[++a], NULL, 0); |
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} |
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break; |
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} |
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/* set/get output resolution */ |
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if (!vardefined(vxres)) |
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varset(vxres, ':', (double)xmax); |
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< |
if (!vardefined(vyres)) |
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varset(vyres, ':', (double)ymax); |
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/* get output resolution */ |
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xres = varvalue(vxres) + .5; |
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yres = varvalue(vyres) + .5; |
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if (xres <= 0 || yres <= 0) { |
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} |
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/* complete header */ |
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printargs(argc, argv, stdout); |
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if (commvp != NULL) { |
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fputs(VIEWSTR, stdout); |
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fprintview(commvp, stdout); |
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fputc('\n', stdout); |
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} |
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if (strcmp(ourfmt, PICFMT)) |
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fputformat(ourfmt, stdout); /* print format if known */ |
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putchar('\n'); |
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eputs("Usage: "); |
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eputs(argv[0]); |
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eputs( |
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" [-w][-x xr][-y yr][-e expr][-f file] [ [-o][-s f][-c r g b] pic ..]\n"); |
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> |
" [-w][-h][-x xr][-y yr][-e expr][-f file] [ [-o][-s f][-c r g b] hdr ..]\n"); |
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quit(1); |
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return 1; /* pro forma return */ |
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} |
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|
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|
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tputs(s) /* put out string preceded by a tab */ |
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char *s; |
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static int |
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headline( /* check header line & echo if requested */ |
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char *s, |
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void *p |
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) |
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{ |
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char fmt[32]; |
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int orig = *(int *)p; |
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> |
char fmt[MAXFMTLEN]; |
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double d; |
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COLOR ctmp; |
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|
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if (isheadid(s)) /* header id */ |
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return; /* don't echo */ |
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return(0); /* don't echo */ |
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if (formatval(fmt, s)) { /* check format */ |
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if (globmatch(ourfmt, fmt)) { |
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wrongformat = 0; |
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strcpy(ourfmt, fmt); |
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} else |
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wrongformat = 1; |
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return; /* don't echo */ |
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> |
wrongformat = globmatch(PICFMT, fmt) ? 1 : -1; |
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> |
return(0); /* don't echo */ |
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} |
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if (isexpos(s)) { /* exposure */ |
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> |
if (orig) { /* undo exposure? */ |
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> |
if (isexpos(s)) { |
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> |
d = 1./exposval(s); |
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> |
scalecolor(input[nfiles].coef, d); |
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> |
return(0); /* don't echo */ |
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> |
} |
276 |
> |
if (iscolcor(s)) { |
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> |
int i; |
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> |
colcorval(ctmp, s); |
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> |
for (i = 3; i--; ) |
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> |
colval(input[nfiles].coef,i) /= colval(ctmp,i); |
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> |
return(0); /* don't echo */ |
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> |
} |
283 |
> |
} else if (isexpos(s)) { /* record exposure? */ |
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d = exposval(s); |
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scalecolor(input[nfiles].expos, d); |
286 |
< |
} else if (iscolcor(s)) { /* color correction */ |
286 |
> |
} else if (iscolcor(s)) { |
287 |
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colcorval(ctmp, s); |
288 |
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multcolor(input[nfiles].expos, ctmp); |
289 |
< |
} else if (isaspect(s)) { |
289 |
> |
} |
290 |
> |
if (isaspect(s)) |
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input[nfiles].pa *= aspectval(s); |
292 |
< |
} else if (isview(s) && sscanview(&input[nfiles].vw, s) > 0) |
292 |
> |
else if (isview(s) && sscanview(&input[nfiles].vw, s) > 0) |
293 |
|
gotview++; |
294 |
< |
/* echo line */ |
295 |
< |
putchar('\t'); |
296 |
< |
fputs(s, stdout); |
294 |
> |
|
295 |
> |
if (echoheader) { /* echo line */ |
296 |
> |
putchar('\t'); |
297 |
> |
return(fputs(s, stdout)); |
298 |
> |
} |
299 |
> |
return(0); |
300 |
|
} |
301 |
|
|
302 |
|
|
303 |
< |
checkfile() /* ready a file */ |
303 |
> |
static void |
304 |
> |
checkfile(int orig) /* ready a file */ |
305 |
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{ |
306 |
< |
register int i; |
306 |
> |
int i; |
307 |
|
/* process header */ |
308 |
|
gotview = 0; |
309 |
< |
fputs(input[nfiles].name, stdout); |
310 |
< |
fputs(":\n", stdout); |
311 |
< |
getheader(input[nfiles].fp, tputs, NULL); |
312 |
< |
if (wrongformat) { |
309 |
> |
if (echoheader) { |
310 |
> |
fputs(input[nfiles].name, stdout); |
311 |
> |
fputs(":\n", stdout); |
312 |
> |
} |
313 |
> |
getheader(input[nfiles].fp, headline, &orig); |
314 |
> |
if (wrongformat < 0) { |
315 |
|
eputs(input[nfiles].name); |
316 |
< |
eputs(": not in Radiance picture format\n"); |
316 |
> |
eputs(": not a Radiance picture\n"); |
317 |
|
quit(1); |
318 |
|
} |
319 |
+ |
if (wrongformat > 0) { |
320 |
+ |
wputs(input[nfiles].name); |
321 |
+ |
wputs(": warning -- incompatible picture format\n"); |
322 |
+ |
} |
323 |
|
if (!gotview || setview(&input[nfiles].vw) != NULL) |
324 |
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input[nfiles].vw.type = 0; |
325 |
+ |
else if (commvp == NULL) |
326 |
+ |
commvp = &input[nfiles].vw; |
327 |
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if (!fgetsresolu(&input[nfiles].rs, input[nfiles].fp)) { |
328 |
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eputs(input[nfiles].name); |
329 |
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eputs(": bad picture size\n"); |
344 |
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} |
345 |
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|
346 |
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|
347 |
< |
double |
348 |
< |
rgb_bright(clr) |
349 |
< |
COLOR clr; |
347 |
> |
static double |
348 |
> |
rgb_bright( |
349 |
> |
COLOR clr |
350 |
> |
) |
351 |
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{ |
352 |
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return(bright(clr)); |
353 |
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} |
354 |
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|
355 |
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|
356 |
< |
double |
357 |
< |
xyz_bright(clr) |
358 |
< |
COLOR clr; |
356 |
> |
static double |
357 |
> |
xyz_bright( |
358 |
> |
COLOR clr |
359 |
> |
) |
360 |
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{ |
361 |
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return(clr[CIEY]); |
362 |
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} |
365 |
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double (*ourbright)() = rgb_bright; |
366 |
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|
367 |
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|
368 |
< |
init() /* perform final setup */ |
368 |
> |
static void |
369 |
> |
init(void) /* perform final setup */ |
370 |
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{ |
371 |
< |
double l_colin(), l_expos(), l_ray(), l_psize(); |
318 |
< |
register int i; |
371 |
> |
int i; |
372 |
|
/* define constants */ |
373 |
+ |
varset("PI", ':', PI); |
374 |
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varset(vnfiles, ':', (double)nfiles); |
375 |
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varset(vxmax, ':', (double)xmax); |
376 |
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varset(vymax, ':', (double)ymax); |
381 |
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} |
382 |
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funset(vbrtexp, 1, ':', l_expos); |
383 |
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funset(vbrtin, 1, '=', l_colin); |
384 |
< |
for (i = 0; i < 6; i++) |
384 |
> |
funset(vpixaspect, 1, ':', l_pixaspect); |
385 |
> |
for (i = 0; i < 7; i++) |
386 |
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funset(vray[i], 1, '=', l_ray); |
387 |
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funset(vpsize, 1, '=', l_psize); |
388 |
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/* set brightness function */ |
389 |
< |
if (!strcmp(ourfmt, CIEFMT)) |
389 |
> |
if (!strcmp(ourfmt, CIEFMT)) { |
390 |
> |
varset(vwhteff, ':', 1.0); |
391 |
|
ourbright = xyz_bright; |
392 |
+ |
} else |
393 |
+ |
varset(vwhteff, ':', WHTEFFICACY); |
394 |
+ |
/* these may be overridden */ |
395 |
+ |
varset(vxres, ':', (double)xmax); |
396 |
+ |
varset(vyres, ':', (double)ymax); |
397 |
|
} |
398 |
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|
399 |
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|
400 |
< |
combine() /* combine pictures */ |
400 |
> |
static void |
401 |
> |
combine(void) /* combine pictures */ |
402 |
|
{ |
403 |
|
EPNODE *coldef[3], *brtdef; |
404 |
|
COLOR *scanout; |
405 |
|
double d; |
406 |
< |
register int i, j; |
406 |
> |
int i, j; |
407 |
|
/* check defined variables */ |
408 |
|
for (j = 0; j < 3; j++) { |
409 |
|
if (vardefined(vcolout[j])) |
424 |
|
advance(); |
425 |
|
varset(vypos, '=', (double)ypos); |
426 |
|
for (xpos = 0; xpos < xres; xpos++) { |
427 |
< |
xscan = (long)xpos*xmax/xres; |
427 |
> |
xscan = (xpos+.5)*xmax/xres; |
428 |
|
varset(vxpos, '=', (double)xpos); |
429 |
|
eclock++; |
430 |
|
if (brtdef != NULL) { |
452 |
|
quit(1); |
453 |
|
} |
454 |
|
} |
455 |
< |
efree(scanout); |
455 |
> |
efree((char *)scanout); |
456 |
|
} |
457 |
|
|
458 |
|
|
459 |
< |
advance() /* read in data for next scanline */ |
459 |
> |
static void |
460 |
> |
advance(void) /* read in data for next scanline */ |
461 |
|
{ |
462 |
|
int ytarget; |
463 |
< |
register COLOR *st; |
464 |
< |
register int i, j; |
463 |
> |
COLOR *st; |
464 |
> |
int i, j; |
465 |
|
|
466 |
< |
for (ytarget = (long)ypos*ymax/yres; yscan > ytarget; yscan--) |
466 |
> |
for (ytarget = (ypos+.5)*ymax/yres; yscan > ytarget; yscan--) |
467 |
|
for (i = 0; i < nfiles; i++) { |
468 |
|
st = input[i].scan[WINSIZ-1]; |
469 |
|
for (j = WINSIZ-1; j > 0; j--) /* rotate window */ |
476 |
|
eputs(": read error\n"); |
477 |
|
quit(1); |
478 |
|
} |
479 |
< |
if (fabs(colval(input[i].coef,RED)-1.0) > 1e-3 || |
480 |
< |
fabs(colval(input[i].coef,GRN)-1.0) > 1e-3 || |
418 |
< |
fabs(colval(input[i].coef,BLU)-1.0) > 1e-3) |
419 |
< |
for (j = 0; j < xmax; j++) /* adjust color */ |
420 |
< |
multcolor(st[j], input[i].coef); |
479 |
> |
for (j = 0; j < xmax; j++) /* adjust color */ |
480 |
> |
multcolor(st[j], input[i].coef); |
481 |
|
} |
482 |
|
} |
483 |
|
|
484 |
|
|
485 |
< |
double |
486 |
< |
l_expos(nam) /* return picture exposure */ |
487 |
< |
register char *nam; |
485 |
> |
static double |
486 |
> |
l_expos( /* return picture exposure */ |
487 |
> |
char *nam |
488 |
> |
) |
489 |
|
{ |
490 |
< |
register int fn, n; |
490 |
> |
int fn, n; |
491 |
> |
double d; |
492 |
|
|
493 |
< |
fn = argument(1) - .5; |
494 |
< |
if (fn < 0 || fn >= nfiles) |
495 |
< |
return(1.0); |
493 |
> |
d = argument(1); |
494 |
> |
if (d <= -0.5 || d >= nfiles+0.5) { |
495 |
> |
errno = EDOM; |
496 |
> |
return(0.0); |
497 |
> |
} |
498 |
> |
if (d < 0.5) |
499 |
> |
return((double)nfiles); |
500 |
> |
fn = d - 0.5; |
501 |
|
if (nam == vbrtexp) |
502 |
|
return((*ourbright)(input[fn].expos)); |
503 |
|
n = 3; |
506 |
|
return(colval(input[fn].expos,n)); |
507 |
|
eputs("Bad call to l_expos()!\n"); |
508 |
|
quit(1); |
509 |
+ |
return 1; /* pro forma return */ |
510 |
|
} |
511 |
|
|
512 |
|
|
513 |
< |
double |
514 |
< |
l_colin(nam) /* return color value for picture */ |
447 |
< |
register char *nam; |
513 |
> |
static double |
514 |
> |
l_pixaspect(char *nm) /* return pixel aspect ratio */ |
515 |
|
{ |
516 |
|
int fn; |
450 |
– |
register int n, xoff, yoff; |
517 |
|
double d; |
518 |
|
|
519 |
|
d = argument(1); |
520 |
< |
if (d > -.5 && d < .5) |
520 |
> |
if (d <= -0.5 || d >= nfiles+0.5) { |
521 |
> |
errno = EDOM; |
522 |
> |
return(0.0); |
523 |
> |
} |
524 |
> |
if (d < 0.5) |
525 |
|
return((double)nfiles); |
526 |
< |
fn = d - .5; |
527 |
< |
if (fn < 0 || fn >= nfiles) { |
526 |
> |
fn = d - 0.5; |
527 |
> |
return(input[fn].pa); |
528 |
> |
} |
529 |
> |
|
530 |
> |
|
531 |
> |
static double |
532 |
> |
l_colin( /* return color value for picture */ |
533 |
> |
char *nam |
534 |
> |
) |
535 |
> |
{ |
536 |
> |
int fn; |
537 |
> |
int n, xoff, yoff; |
538 |
> |
double d; |
539 |
> |
|
540 |
> |
d = argument(1); |
541 |
> |
if (d <= -0.5 || d >= nfiles+0.5) { |
542 |
|
errno = EDOM; |
543 |
|
return(0.0); |
544 |
|
} |
545 |
+ |
if (d < 0.5) |
546 |
+ |
return((double)nfiles); |
547 |
+ |
fn = d - 0.5; |
548 |
|
xoff = yoff = 0; |
549 |
|
n = nargum(); |
550 |
|
if (n >= 2) { |
583 |
|
return(colval(input[fn].scan[MIDSCN+yoff][xscan+xoff],n)); |
584 |
|
eputs("Bad call to l_colin()!\n"); |
585 |
|
quit(1); |
586 |
+ |
return 1; /* pro forma return */ |
587 |
|
} |
588 |
|
|
589 |
|
|
590 |
< |
double |
591 |
< |
l_ray(nam) /* return ray origin or direction */ |
592 |
< |
register char *nam; |
590 |
> |
static double |
591 |
> |
l_ray( /* return ray origin or direction */ |
592 |
> |
char *nam |
593 |
> |
) |
594 |
|
{ |
595 |
|
static unsigned long ltick[MAXINP]; |
596 |
|
static FVECT lorg[MAXINP], ldir[MAXINP]; |
597 |
< |
FLOAT loc[2]; |
597 |
> |
static double ldist[MAXINP]; |
598 |
> |
RREAL loc[2]; |
599 |
|
double d; |
600 |
|
int fn; |
601 |
< |
register int i; |
601 |
> |
int i; |
602 |
|
|
603 |
|
d = argument(1); |
604 |
< |
if (d > -.5 && d < .5) |
515 |
< |
return((double)nfiles); |
516 |
< |
fn = d - .5; |
517 |
< |
if (fn < 0 || fn >= nfiles) { |
604 |
> |
if (d <= -0.5 || d >= nfiles+0.5) { |
605 |
|
errno = EDOM; |
606 |
|
return(0.0); |
607 |
|
} |
608 |
< |
if (ltick[fn] < eclock) { /* need to compute? */ |
608 |
> |
if (d < 0.5) |
609 |
> |
return((double)nfiles); |
610 |
> |
fn = d - 0.5; |
611 |
> |
if (ltick[fn] != eclock) { /* need to compute? */ |
612 |
|
lorg[fn][0] = lorg[fn][1] = lorg[fn][2] = 0.0; |
613 |
|
ldir[fn][0] = ldir[fn][1] = ldir[fn][2] = 0.0; |
614 |
+ |
ldist[fn] = -1.0; |
615 |
|
if (input[fn].vw.type == 0) |
616 |
|
errno = EDOM; |
617 |
|
else { |
618 |
|
pix2loc(loc, &input[fn].rs, xscan, ymax-1-yscan); |
619 |
< |
if (viewray(lorg[fn], ldir[fn], |
620 |
< |
&input[fn].vw, loc[0], loc[1]) < 0) |
530 |
< |
errno = ERANGE; |
531 |
< |
ltick[fn] = eclock; |
619 |
> |
ldist[fn] = viewray(lorg[fn], ldir[fn], |
620 |
> |
&input[fn].vw, loc[0], loc[1]); |
621 |
|
} |
622 |
+ |
ltick[fn] = eclock; |
623 |
|
} |
624 |
< |
i = 6; |
624 |
> |
if (nam == vray[i=6]) |
625 |
> |
return(ldist[fn]); |
626 |
|
while (i--) |
627 |
|
if (nam == vray[i]) |
628 |
|
return(i < 3 ? lorg[fn][i] : ldir[fn][i-3]); |
629 |
|
eputs("Bad call to l_ray()!\n"); |
630 |
|
quit(1); |
631 |
+ |
return 1; /* pro forma return */ |
632 |
|
} |
633 |
|
|
634 |
|
|
635 |
< |
double |
636 |
< |
l_psize() /* compute pixel size in steradians */ |
635 |
> |
static double |
636 |
> |
l_psize(char *nm) /* compute pixel size in steradians */ |
637 |
|
{ |
638 |
|
static unsigned long ltick[MAXINP]; |
639 |
|
static double psize[MAXINP]; |
640 |
< |
FVECT dir0, org1, dir1; |
641 |
< |
FLOAT loc[2]; |
640 |
> |
FVECT dir0, org, dirx, diry; |
641 |
> |
RREAL locx[2], locy[2]; |
642 |
|
double d; |
643 |
|
int fn; |
644 |
+ |
int i; |
645 |
|
|
646 |
|
d = argument(1); |
647 |
< |
if (d > -.5 && d < .5) |
555 |
< |
return((double)nfiles); |
556 |
< |
fn = d - .5; |
557 |
< |
if (fn < 0 || fn >= nfiles) { |
647 |
> |
if (d <= -0.5 || d >= nfiles+0.5) { |
648 |
|
errno = EDOM; |
649 |
|
return(0.0); |
650 |
|
} |
651 |
< |
if (ltick[fn] < eclock) /* need to compute? */ |
652 |
< |
if (input[fn].vw.type == 0 || input[fn].vw.type == VT_PAR) |
651 |
> |
if (d < 0.5) |
652 |
> |
return((double)nfiles); |
653 |
> |
fn = d - 0.5; |
654 |
> |
if (ltick[fn] != eclock) { /* need to compute? */ |
655 |
> |
psize[fn] = 0.0; |
656 |
> |
if (input[fn].vw.type == 0) |
657 |
|
errno = EDOM; |
658 |
< |
else { |
659 |
< |
errno = 0; |
660 |
< |
dir0[0] = funvalue(vray[3], 1, &d); |
661 |
< |
if (errno) |
662 |
< |
return(0.0); |
663 |
< |
dir0[1] = funvalue(vray[4], 1, &d); |
664 |
< |
if (errno) |
665 |
< |
return(0.0); |
666 |
< |
dir0[2] = funvalue(vray[5], 1, &d); |
667 |
< |
if (errno) |
574 |
< |
return(0.0); |
575 |
< |
pix2loc(loc, &input[fn].rs, xscan+1, ymax-yscan); |
576 |
< |
psize[fn] = 0.0; |
577 |
< |
if (viewray(org1, dir1, |
578 |
< |
&input[fn].vw, loc[0], loc[1]) < 0) |
579 |
< |
errno = ERANGE; |
580 |
< |
else { |
658 |
> |
else if (input[fn].vw.type != VT_PAR && |
659 |
> |
funvalue(vray[6], 1, &d) >= -FTINY) { |
660 |
> |
for (i = 0; i < 3; i++) |
661 |
> |
dir0[i] = funvalue(vray[3+i], 1, &d); |
662 |
> |
pix2loc(locx, &input[fn].rs, xscan+1, ymax-1-yscan); |
663 |
> |
pix2loc(locy, &input[fn].rs, xscan, ymax-yscan); |
664 |
> |
if (viewray(org, dirx, &input[fn].vw, |
665 |
> |
locx[0], locx[1]) >= -FTINY && |
666 |
> |
viewray(org, diry, &input[fn].vw, |
667 |
> |
locy[0], locy[1]) >= -FTINY) { |
668 |
|
/* approximate solid angle */ |
669 |
< |
psize[fn] = dist2(dir0, dir1) * input[fn].pa / |
670 |
< |
(1.0 + input[fn].pa*input[fn].pa); |
671 |
< |
ltick[fn] = eclock; |
669 |
> |
for (i = 0; i < 3; i++) { |
670 |
> |
dirx[i] -= dir0[i]; |
671 |
> |
diry[i] -= dir0[i]; |
672 |
> |
} |
673 |
> |
fcross(dir0, dirx, diry); |
674 |
> |
psize[fn] = VLEN(dir0); |
675 |
|
} |
676 |
|
} |
677 |
+ |
ltick[fn] = eclock; |
678 |
+ |
} |
679 |
|
return(psize[fn]); |
680 |
|
} |
681 |
|
|
682 |
|
|
683 |
< |
wputs(msg) |
684 |
< |
char *msg; |
683 |
> |
extern void |
684 |
> |
wputs(const char *msg) |
685 |
|
{ |
686 |
|
if (!nowarn) |
687 |
|
eputs(msg); |
688 |
|
} |
689 |
|
|
690 |
|
|
691 |
< |
eputs(msg) |
692 |
< |
char *msg; |
691 |
> |
extern void |
692 |
> |
eputs(const char *msg) |
693 |
|
{ |
694 |
|
fputs(msg, stderr); |
695 |
|
} |
696 |
|
|
697 |
|
|
698 |
< |
quit(code) /* exit gracefully */ |
699 |
< |
int code; |
698 |
> |
extern void |
699 |
> |
quit(int code) /* exit gracefully */ |
700 |
|
{ |
701 |
< |
register int i; |
701 |
> |
int i; |
702 |
|
/* close input files */ |
703 |
|
for (i = 0; i < nfiles; i++) |
704 |
|
if (input[i].name == Command) |