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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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#include <stdio.h> |
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|
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#ifdef MSDOS |
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#include <fcntl.h> |
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#endif |
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|
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#include <math.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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|
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#include "calcomp.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 name */ |
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char *name; /* file or command name */ |
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FILE *fp; /* stream pointer */ |
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COLOR *scan[WINSIZ]; /* input scanline window */ |
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COLOR coef; /* coefficient */ |
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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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#define vnfiles "nfiles" |
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#define vxres "xres" |
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#define vyres "yres" |
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#define vxpos "x" |
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#define vypos "y" |
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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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char vxres[] = "xres"; |
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char vyres[] = "yres"; |
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char vxpos[] = "x"; |
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char vypos[] = "y"; |
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|
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int nowarn = 0; /* no warning messages? */ |
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|
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int original = 0; /* origninal values? */ |
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int xmax = 0, ymax = 0; /* input resolution */ |
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|
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int xres=0, yres=0; /* picture resolution */ |
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int xscan, yscan; /* input position */ |
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|
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int xpos, ypos; /* picture position */ |
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int xres, yres; /* output resolution */ |
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|
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int xpos, ypos; /* output position */ |
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|
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int wrongformat = 0; |
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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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|
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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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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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/* scan options */ |
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for (a = 1; a < argc; a++) { |
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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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xres = atoi(argv[++a]); |
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continue; |
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case 'y': |
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yres = atoi(argv[++a]); |
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a++; |
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continue; |
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case 'w': |
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nowarn = !nowarn; |
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setcolor(input[nfiles].expos, 1.0, 1.0, 1.0); |
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} |
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nfiles = 0; |
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original = 0; |
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for ( ; a < argc; a++) { |
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if (nfiles >= MAXINP) { |
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eputs(argv[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 = 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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} |
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checkfile(); |
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original = 0; |
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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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nfiles++; |
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original = 0; |
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} |
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init(); /* set constant expressions */ |
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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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if (argv[a][0] == '-') |
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switch (argv[a][1]) { |
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case 'x': |
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varset(vxres, ':', eval(argv[++a])); |
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continue; |
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case 'y': |
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a++; |
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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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} |
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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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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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eputs(argv[0]); |
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eputs(": illegal output resolution\n"); |
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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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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] [ [-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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if (isexpos(s)) { /* exposure */ |
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d = exposval(s); |
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scalecolor(input[nfiles].expos, d); |
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if (original) |
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scalecolor(input[nfiles].coef, 1.0/d); |
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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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if (original) { |
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colval(input[nfiles].coef,RED) /= colval(ctmp,RED); |
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colval(input[nfiles].coef,GRN) /= colval(ctmp,GRN); |
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colval(input[nfiles].coef,BLU) /= colval(ctmp,BLU); |
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} |
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} |
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/* echo line */ |
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putchar('\t'); |
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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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fputs(input[nfiles].name, stdout); |
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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(&xpos, &ypos, input[nfiles].fp) != (YMAJOR|YDECR)) { |
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> |
if (fgetresolu(&xinp, &yinp, input[nfiles].fp) < 0) { |
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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 (xres == 0 && yres == 0) { |
261 |
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xres = xpos; |
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< |
yres = ypos; |
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} else if (xpos != xres || ypos != yres) { |
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> |
if (xmax == 0 && ymax == 0) { |
261 |
> |
xmax = xinp; |
262 |
> |
ymax = yinp; |
263 |
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} else if (xinp != xmax || yinp != 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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/* allocate scanlines */ |
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for (i = 0; i < WINSIZ; i++) |
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< |
input[nfiles].scan[i] = (COLOR *)emalloc(xres*sizeof(COLOR)); |
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> |
input[nfiles].scan[i] = (COLOR *)emalloc(xmax*sizeof(COLOR)); |
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} |
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|
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|
274 |
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init() /* perform final setup */ |
274 |
> |
init() /* perform final setup */ |
275 |
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{ |
276 |
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double l_colin(), l_expos(); |
277 |
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register int i; |
236 |
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/* prime input */ |
237 |
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for (ypos = yres+(MIDSCN-1); ypos >= yres; ypos--) |
238 |
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advance(); |
278 |
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/* define constants */ |
279 |
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varset(vnfiles, ':', (double)nfiles); |
280 |
< |
varset(vxres, ':', (double)xres); |
281 |
< |
varset(vyres, ':', (double)yres); |
280 |
> |
varset(vxmax, ':', (double)xmax); |
281 |
> |
varset(vymax, ':', (double)ymax); |
282 |
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/* set functions */ |
283 |
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for (i = 0; i < 3; i++) { |
284 |
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funset(vcolexp[i], 1, ':', l_expos); |
308 |
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brtdef = NULL; |
309 |
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/* allocate scanline */ |
310 |
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scanout = (COLOR *)emalloc(xres*sizeof(COLOR)); |
311 |
+ |
/* set input position */ |
312 |
+ |
yscan = ymax+MIDSCN; |
313 |
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/* combine files */ |
314 |
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for (ypos = yres-1; ypos >= 0; ypos--) { |
315 |
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advance(); |
316 |
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varset(vypos, '=', (double)ypos); |
317 |
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for (xpos = 0; xpos < xres; xpos++) { |
318 |
+ |
xscan = (long)xpos*xmax/xres; |
319 |
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varset(vxpos, '=', (double)xpos); |
320 |
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eclock++; |
321 |
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if (brtdef != NULL) { |
330 |
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} else { |
331 |
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d = 0.0; |
332 |
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for (i = 0; i < nfiles; i++) |
333 |
< |
d += colval(input[i].scan[MIDSCN][xpos],j); |
333 |
> |
d += colval(input[i].scan[MIDSCN][xscan],j); |
334 |
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} |
335 |
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if (d < 0.0) |
336 |
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d = 0.0; |
347 |
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} |
348 |
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|
349 |
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|
350 |
< |
advance() /* read in next scanline */ |
350 |
> |
advance() /* read in data for next scanline */ |
351 |
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{ |
352 |
+ |
int ytarget; |
353 |
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register COLOR *st; |
354 |
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register int i, j; |
355 |
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|
356 |
< |
for (i = 0; i < nfiles; i++) { |
357 |
< |
st = input[i].scan[WINSIZ-1]; |
358 |
< |
for (j = WINSIZ-1; j > 0; j--) /* rotate window */ |
359 |
< |
input[i].scan[j] = input[i].scan[j-1]; |
360 |
< |
input[i].scan[0] = st; |
361 |
< |
if (ypos < MIDSCN) /* hit bottom */ |
362 |
< |
continue; |
363 |
< |
if (freadscan(st, xres, input[i].fp) < 0) { |
364 |
< |
eputs(input[i].name); |
365 |
< |
eputs(": read error\n"); |
366 |
< |
quit(1); |
356 |
> |
for (ytarget = (long)ypos*ymax/yres; yscan > ytarget; yscan--) |
357 |
> |
for (i = 0; i < nfiles; i++) { |
358 |
> |
st = input[i].scan[WINSIZ-1]; |
359 |
> |
for (j = WINSIZ-1; j > 0; j--) /* rotate window */ |
360 |
> |
input[i].scan[j] = input[i].scan[j-1]; |
361 |
> |
input[i].scan[0] = st; |
362 |
> |
if (yscan <= MIDSCN) /* hit bottom? */ |
363 |
> |
continue; |
364 |
> |
if (freadscan(st, xmax, input[i].fp) < 0) { /* read */ |
365 |
> |
eputs(input[i].name); |
366 |
> |
eputs(": read error\n"); |
367 |
> |
quit(1); |
368 |
> |
} |
369 |
> |
if (fabs(colval(input[i].coef,RED)-1.0) > 1e-3 || |
370 |
> |
fabs(colval(input[i].coef,GRN)-1.0) > 1e-3 || |
371 |
> |
fabs(colval(input[i].coef,BLU)-1.0) > 1e-3) |
372 |
> |
for (j = 0; j < xmax; j++) /* adjust color */ |
373 |
> |
multcolor(st[j], input[i].coef); |
374 |
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} |
325 |
– |
for (j = 0; j < xres; j++) /* adjust color */ |
326 |
– |
multcolor(st[j], input[i].coef); |
327 |
– |
} |
375 |
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} |
376 |
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|
377 |
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|
380 |
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register char *nam; |
381 |
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{ |
382 |
|
register int fn, n; |
336 |
– |
double d; |
383 |
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|
384 |
< |
d = argument(1); |
385 |
< |
if (d > -.5 && d < .5) |
386 |
< |
return((double)nfiles); |
341 |
< |
fn = d - .5; |
342 |
< |
if (fn < 0 || fn >= nfiles) { |
343 |
< |
errno = EDOM; |
344 |
< |
return(0.0); |
345 |
< |
} |
384 |
> |
fn = argument(1) - .5; |
385 |
> |
if (fn < 0 || fn >= nfiles) |
386 |
> |
return(1.0); |
387 |
|
if (nam == vbrtexp) |
388 |
|
return(bright(input[fn].expos)); |
389 |
|
n = 3; |
417 |
|
d = argument(2); |
418 |
|
if (d < 0.0) { |
419 |
|
xoff = d-.5; |
420 |
< |
if (xpos+xoff < 0) |
421 |
< |
xoff = -xpos; |
420 |
> |
if (xscan+xoff < 0) |
421 |
> |
xoff = -xscan; |
422 |
|
} else { |
423 |
|
xoff = d+.5; |
424 |
< |
if (xpos+xoff >= xres) |
425 |
< |
xoff = xres-1-xpos; |
424 |
> |
if (xscan+xoff >= xmax) |
425 |
> |
xoff = xmax-1-xscan; |
426 |
|
} |
427 |
|
} |
428 |
|
if (n >= 3) { |
431 |
|
yoff = d-.5; |
432 |
|
if (yoff+MIDSCN < 0) |
433 |
|
yoff = -MIDSCN; |
434 |
< |
if (ypos+yoff < 0) |
435 |
< |
yoff = -ypos; |
434 |
> |
if (yscan+yoff < 0) |
435 |
> |
yoff = -yscan; |
436 |
|
} else { |
437 |
|
yoff = d+.5; |
438 |
|
if (yoff+MIDSCN >= WINSIZ) |
439 |
|
yoff = WINSIZ-1-MIDSCN; |
440 |
< |
if (ypos+yoff >= yres) |
441 |
< |
yoff = yres-1-ypos; |
440 |
> |
if (yscan+yoff >= ymax) |
441 |
> |
yoff = ymax-1-yscan; |
442 |
|
} |
443 |
|
} |
444 |
|
if (nam == vbrtin) |
445 |
< |
return(bright(input[fn].scan[MIDSCN+yoff][xpos+xoff])); |
445 |
> |
return(bright(input[fn].scan[MIDSCN+yoff][xscan+xoff])); |
446 |
|
n = 3; |
447 |
|
while (n--) |
448 |
|
if (nam == vcolin[n]) |
449 |
< |
return(colval(input[fn].scan[MIDSCN+yoff][xpos+xoff],n)); |
449 |
> |
return(colval(input[fn].scan[MIDSCN+yoff][xscan+xoff],n)); |
450 |
|
eputs("Bad call to l_colin()!\n"); |
451 |
|
quit(1); |
452 |
|
} |
467 |
|
} |
468 |
|
|
469 |
|
|
470 |
< |
quit(code) |
471 |
< |
int code; |
470 |
> |
quit(code) /* exit gracefully */ |
471 |
> |
int code; |
472 |
|
{ |
473 |
+ |
register int i; |
474 |
+ |
/* close input files */ |
475 |
+ |
for (i = 0; i < nfiles; i++) |
476 |
+ |
if (input[i].name == Command) |
477 |
+ |
pclose(input[i].fp); |
478 |
+ |
else |
479 |
+ |
fclose(input[i].fp); |
480 |
|
exit(code); |
481 |
|
} |