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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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#include <stdio.h> |
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#include "standard.h" |
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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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|
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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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|
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#define BRT (-1) /* special index for brightness */ |
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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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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 *vcolin[3] = {"ri", "gi", "bi"}; |
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char *vcolout[3] = {"ro", "go", "bo"}; |
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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 vbrtout[] = "lo"; |
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char *vcolexp[3] = {"re", "ge", "be"}; |
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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 vnfiles[] = "nfiles"; |
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char vxmax[] = "xmax"; |
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char vymax[] = "ymax"; |
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int xpos, ypos; /* output position */ |
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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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FILE *popen(); |
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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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{ |
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char buf[128]; |
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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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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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} |
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nfiles = 0; |
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original = 0; |
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break; |
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case 'o': |
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original++; |
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break; |
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continue; |
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case 's': |
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f = atof(argv[++a]); |
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scalecolor(input[nfiles].coef, f); |
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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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if (argv[a][0] == '-') |
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switch (argv[a][1]) { |
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case 'x': |
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strcpy(buf, vxres); |
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strcat(buf, ":"); |
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strcat(buf, argv[++a]); |
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scompile(buf, NULL, 0); |
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varset(vxres, ':', eval(argv[++a])); |
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continue; |
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case 'y': |
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strcpy(buf, vyres); |
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strcat(buf, ":"); |
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strcat(buf, argv[++a]); |
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scompile(buf, NULL, 0); |
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varset(vyres, ':', eval(argv[++a])); |
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continue; |
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case 'w': |
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continue; |
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printargs(argc, argv, stdout); |
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fputformat(COLRFMT, stdout); |
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putchar('\n'); |
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fputresolu(YMAJOR|YDECR, xres, yres, stdout); |
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fprtresolu(xres, yres, stdout); |
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/* combine pictures */ |
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combine(); |
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quit(0); |
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eputs("Usage: "); |
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eputs(argv[0]); |
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eputs( |
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" [-w][-h][-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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} 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 (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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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) != (YMAJOR|YDECR)) { |
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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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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(); |
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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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} |
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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 */ |
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if (freadscan(st, xmax, input[i].fp) < 0) { /* read */ |
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eputs(input[i].name); |
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eputs(": read error\n"); |
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quit(1); |
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} |
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for (j = 0; j < xmax; j++) /* adjust color */ |
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multcolor(st[j], input[i].coef); |
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if (fabs(colval(input[i].coef,RED)-1.0) > 1e-3 || |
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fabs(colval(input[i].coef,GRN)-1.0) > 1e-3 || |
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fabs(colval(input[i].coef,BLU)-1.0) > 1e-3) |
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for (j = 0; j < xmax; j++) /* adjust color */ |
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multcolor(st[j], input[i].coef); |
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} |
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} |
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} |
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double |
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l_ray(nam) /* return ray origin or direction */ |
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register char *nam; |
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{ |
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static long ltick[MAXINP]; |
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static FVECT lorg[MAXINP], ldir[MAXINP]; |
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FLOAT loc[2]; |
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double d; |
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int fn; |
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register int i; |
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|
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d = argument(1); |
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if (d > -.5 && d < .5) |
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return((double)nfiles); |
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fn = d - .5; |
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if (fn < 0 || fn >= nfiles) { |
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errno = EDOM; |
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return(0.0); |
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} |
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if (ltick[fn] < eclock) { /* need to compute? */ |
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lorg[fn][0] = lorg[fn][1] = lorg[fn][2] = 0.0; |
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ldir[fn][0] = ldir[fn][1] = ldir[fn][2] = 0.0; |
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if (input[fn].vw.type == 0) |
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errno = ERANGE; |
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else { |
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pix2loc(loc, &input[fn].rs, xscan, ymax-1-yscan); |
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if (viewray(lorg[fn], ldir[fn], |
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&input[fn].vw, loc[0], loc[1]) < 0) |
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errno = ERANGE; |
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} |
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ltick[fn] = eclock; |
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} |
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i = 6; |
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while (i--) |
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if (nam == vray[i]) |
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return(i < 3 ? lorg[fn][i] : ldir[fn][i-3]); |
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eputs("Bad call to l_ray()!\n"); |
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quit(1); |
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} |
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|
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|
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wputs(msg) |
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char *msg; |
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{ |
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} |
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|
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quit(code) |
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int code; |
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quit(code) /* exit gracefully */ |
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int code; |
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{ |
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register int i; |
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/* close input files */ |
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for (i = 0; i < nfiles; i++) |
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if (input[i].name == Command) |
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pclose(input[i].fp); |
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else |
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fclose(input[i].fp); |
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exit(code); |
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} |