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/* Copyright (c) 1991 Regents of the University of California */ |
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/* Copyright (c) 1992 Regents of the University of California */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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* 1/4/89 |
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*/ |
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|
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#include <stdio.h> |
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#include "standard.h" |
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|
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#include <errno.h> |
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|
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#include "color.h" |
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|
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#include "resolu.h" |
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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 9 /* scanline window size */ |
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#define MIDSCN 4 /* current scan position */ |
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#define WINSIZ 17 /* 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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char *name; /* file or command name */ |
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FILE *fp; /* stream pointer */ |
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VIEW vw; /* view for picture */ |
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RESOLU rs; /* image resolution and orientation */ |
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float pa; /* pixel aspect ratio */ |
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COLOR *scan[WINSIZ]; /* input scanline window */ |
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COLOR coef; /* coefficient */ |
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COLOR expos; /* recorded exposure */ |
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|
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int nfiles; /* number of input files */ |
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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 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 vbrtin[] = "li"; |
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char vcolexp[3][4] = {"re", "ge", "be"}; |
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char vbrtexp[] = "le"; |
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|
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char vray[6][4] = {"Ox", "Oy", "Oz", "Dx", "Dy", "Dz"}; |
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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 vxmax[] = "xmax"; |
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char vymax[] = "ymax"; |
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|
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int xpos, ypos; /* output position */ |
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|
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char *progname; /* global argv[0] */ |
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|
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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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|
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main(argc, argv) |
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int argc; |
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char *argv[]; |
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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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progname = argv[0]; |
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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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} |
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break; |
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} |
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newheader("RADIANCE", stdout); /* start header */ |
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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].pa = 1.0; |
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} |
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nfiles = 0; |
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original = 0; |
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goto usage; |
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} |
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else { |
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input[nfiles].name = argv[a]; |
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input[nfiles].fp = argv[a][0]=='!' ? |
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popen(argv[a]+1, "r") : |
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fopen(argv[a], "r"); |
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if (argv[a][0] == '!') { |
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input[nfiles].name = Command; |
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input[nfiles].fp = popen(argv[a]+1, "r"); |
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} else { |
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input[nfiles].name = argv[a]; |
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input[nfiles].fp = fopen(argv[a], "r"); |
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} |
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if (input[nfiles].fp == NULL) { |
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perror(argv[a]); |
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quit(1); |
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} |
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/* complete header */ |
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printargs(argc, argv, stdout); |
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fputformat(COLRFMT, stdout); |
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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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fprtresolu(xres, yres, stdout); |
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/* combine pictures */ |
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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] [ [-s f][-c r g b] pic ..]\n"); |
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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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quit(1); |
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} |
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|
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double d; |
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COLOR ctmp; |
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|
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if (isformat(s)) { /* check format */ |
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formatval(fmt, s); |
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wrongformat = strcmp(fmt, COLRFMT); |
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if (isheadid(s)) /* header id */ |
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return; /* 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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} |
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if (isexpos(s)) { /* exposure */ |
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d = exposval(s); |
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} else if (iscolcor(s)) { /* color correction */ |
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colcorval(ctmp, s); |
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multcolor(input[nfiles].expos, ctmp); |
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} |
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} else if (isaspect(s)) { |
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input[nfiles].pa *= aspectval(s); |
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} else if (isview(s) && sscanview(&input[nfiles].vw, s) > 0) |
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gotview++; |
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/* echo line */ |
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putchar('\t'); |
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fputs(s, stdout); |
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|
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checkfile() /* ready a file */ |
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{ |
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int xinp, yinp; |
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register int i; |
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/* process header */ |
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gotview = 0; |
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fputs(input[nfiles].name, stdout); |
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fputs(":\n", stdout); |
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getheader(input[nfiles].fp, tputs, NULL); |
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eputs(": not in Radiance picture format\n"); |
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quit(1); |
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} |
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if (fgetresolu(&xinp, &yinp, input[nfiles].fp) < 0) { |
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if (!gotview || setview(&input[nfiles].vw) != NULL) |
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input[nfiles].vw.type = 0; |
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if (!fgetsresolu(&input[nfiles].rs, input[nfiles].fp)) { |
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eputs(input[nfiles].name); |
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eputs(": bad picture size\n"); |
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quit(1); |
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} |
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if (xmax == 0 && ymax == 0) { |
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xmax = xinp; |
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ymax = yinp; |
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} else if (xinp != xmax || yinp != ymax) { |
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xmax = scanlen(&input[nfiles].rs); |
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ymax = numscans(&input[nfiles].rs); |
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} else if (scanlen(&input[nfiles].rs) != xmax || |
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numscans(&input[nfiles].rs) != ymax) { |
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eputs(input[nfiles].name); |
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eputs(": resolution mismatch\n"); |
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quit(1); |
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} |
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|
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double |
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rgb_bright(clr) |
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COLOR clr; |
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{ |
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return(bright(clr)); |
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} |
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|
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|
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double |
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xyz_bright(clr) |
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COLOR clr; |
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{ |
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return(clr[CIEY]); |
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} |
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|
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|
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double (*ourbright)() = rgb_bright; |
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|
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|
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init() /* perform final setup */ |
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{ |
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< |
double l_colin(), l_expos(); |
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> |
double l_colin(), l_expos(), l_ray(), l_psize(); |
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register int i; |
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/* define constants */ |
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varset(vnfiles, ':', (double)nfiles); |
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} |
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funset(vbrtexp, 1, ':', l_expos); |
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funset(vbrtin, 1, '=', l_colin); |
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for (i = 0; i < 6; i++) |
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funset(vray[i], 1, '=', l_ray); |
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funset(vpsize, 1, '=', l_psize); |
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/* set brightness function */ |
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if (!strcmp(ourfmt, CIEFMT)) |
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ourbright = xyz_bright; |
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} |
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|
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|
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input[i].scan[0] = st; |
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if (yscan <= MIDSCN) /* hit bottom? */ |
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continue; |
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if (freadscan(st, xmax, input[i].fp) < 0) { /* read */ |
411 |
> |
if (freadscan(st, xmax, input[i].fp) < 0) { /* read */ |
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eputs(input[i].name); |
413 |
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eputs(": read error\n"); |
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quit(1); |
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} |
416 |
< |
for (j = 0; j < xmax; j++) /* adjust color */ |
417 |
< |
multcolor(st[j], input[i].coef); |
416 |
> |
if (fabs(colval(input[i].coef,RED)-1.0) > 1e-3 || |
417 |
> |
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); |
421 |
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} |
422 |
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} |
423 |
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|
432 |
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if (fn < 0 || fn >= nfiles) |
433 |
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return(1.0); |
434 |
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if (nam == vbrtexp) |
435 |
< |
return(bright(input[fn].expos)); |
435 |
> |
return((*ourbright)(input[fn].expos)); |
436 |
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n = 3; |
437 |
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while (n--) |
438 |
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if (nam == vcolexp[n]) |
489 |
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} |
490 |
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} |
491 |
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if (nam == vbrtin) |
492 |
< |
return(bright(input[fn].scan[MIDSCN+yoff][xscan+xoff])); |
492 |
> |
return((*ourbright)(input[fn].scan[MIDSCN+yoff][xscan+xoff])); |
493 |
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n = 3; |
494 |
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while (n--) |
495 |
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if (nam == vcolin[n]) |
499 |
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} |
500 |
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|
501 |
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|
502 |
+ |
double |
503 |
+ |
l_ray(nam) /* return ray origin or direction */ |
504 |
+ |
register char *nam; |
505 |
+ |
{ |
506 |
+ |
static unsigned long ltick[MAXINP]; |
507 |
+ |
static FVECT lorg[MAXINP], ldir[MAXINP]; |
508 |
+ |
FLOAT loc[2]; |
509 |
+ |
double d; |
510 |
+ |
int fn; |
511 |
+ |
register int i; |
512 |
+ |
|
513 |
+ |
d = argument(1); |
514 |
+ |
if (d > -.5 && d < .5) |
515 |
+ |
return((double)nfiles); |
516 |
+ |
fn = d - .5; |
517 |
+ |
if (fn < 0 || fn >= nfiles) { |
518 |
+ |
errno = EDOM; |
519 |
+ |
return(0.0); |
520 |
+ |
} |
521 |
+ |
if (ltick[fn] < eclock) { /* need to compute? */ |
522 |
+ |
lorg[fn][0] = lorg[fn][1] = lorg[fn][2] = 0.0; |
523 |
+ |
ldir[fn][0] = ldir[fn][1] = ldir[fn][2] = 0.0; |
524 |
+ |
if (input[fn].vw.type == 0) |
525 |
+ |
errno = EDOM; |
526 |
+ |
else { |
527 |
+ |
pix2loc(loc, &input[fn].rs, xscan, ymax-1-yscan); |
528 |
+ |
if (viewray(lorg[fn], ldir[fn], |
529 |
+ |
&input[fn].vw, loc[0], loc[1]) < 0) |
530 |
+ |
errno = ERANGE; |
531 |
+ |
ltick[fn] = eclock; |
532 |
+ |
} |
533 |
+ |
} |
534 |
+ |
i = 6; |
535 |
+ |
while (i--) |
536 |
+ |
if (nam == vray[i]) |
537 |
+ |
return(i < 3 ? lorg[fn][i] : ldir[fn][i-3]); |
538 |
+ |
eputs("Bad call to l_ray()!\n"); |
539 |
+ |
quit(1); |
540 |
+ |
} |
541 |
+ |
|
542 |
+ |
|
543 |
+ |
double |
544 |
+ |
l_psize() /* compute pixel size in steradians */ |
545 |
+ |
{ |
546 |
+ |
static unsigned long ltick[MAXINP]; |
547 |
+ |
static double psize[MAXINP]; |
548 |
+ |
FVECT dir0, org1, dir1; |
549 |
+ |
FLOAT loc[2]; |
550 |
+ |
double d; |
551 |
+ |
int fn; |
552 |
+ |
|
553 |
+ |
d = argument(1); |
554 |
+ |
if (d > -.5 && d < .5) |
555 |
+ |
return((double)nfiles); |
556 |
+ |
fn = d - .5; |
557 |
+ |
if (fn < 0 || fn >= nfiles) { |
558 |
+ |
errno = EDOM; |
559 |
+ |
return(0.0); |
560 |
+ |
} |
561 |
+ |
if (ltick[fn] < eclock) /* need to compute? */ |
562 |
+ |
if (input[fn].vw.type == 0 || input[fn].vw.type == VT_PAR) |
563 |
+ |
errno = EDOM; |
564 |
+ |
else { |
565 |
+ |
errno = 0; |
566 |
+ |
dir0[0] = funvalue(vray[3], 1, &d); |
567 |
+ |
if (errno) |
568 |
+ |
return(0.0); |
569 |
+ |
dir0[1] = funvalue(vray[4], 1, &d); |
570 |
+ |
if (errno) |
571 |
+ |
return(0.0); |
572 |
+ |
dir0[2] = funvalue(vray[5], 1, &d); |
573 |
+ |
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 { |
581 |
+ |
/* approximate solid angle */ |
582 |
+ |
psize[fn] = dist2(dir0, dir1) * input[fn].pa / |
583 |
+ |
(1.0 + input[fn].pa*input[fn].pa); |
584 |
+ |
ltick[fn] = eclock; |
585 |
+ |
} |
586 |
+ |
} |
587 |
+ |
return(psize[fn]); |
588 |
+ |
} |
589 |
+ |
|
590 |
+ |
|
591 |
|
wputs(msg) |
592 |
|
char *msg; |
593 |
|
{ |
603 |
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} |
604 |
|
|
605 |
|
|
606 |
< |
quit(code) |
607 |
< |
int code; |
606 |
> |
quit(code) /* exit gracefully */ |
607 |
> |
int code; |
608 |
|
{ |
609 |
+ |
register int i; |
610 |
+ |
/* close input files */ |
611 |
+ |
for (i = 0; i < nfiles; i++) |
612 |
+ |
if (input[i].name == Command) |
613 |
+ |
pclose(input[i].fp); |
614 |
+ |
else |
615 |
+ |
fclose(input[i].fp); |
616 |
|
exit(code); |
617 |
|
} |