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/* Copyright (c) 1989 Regents of the University of California */ |
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/* Copyright (c) 1991 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 "calcomp.h" |
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|
21 |
< |
#define MAXINP 16 /* maximum number of input files */ |
21 |
> |
#define MAXINP 32 /* maximum number of input files */ |
22 |
> |
#define WINSIZ 9 /* scanline window size */ |
23 |
> |
#define MIDSCN 4 /* current scan position */ |
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|
25 |
+ |
#define BRT (-1) /* special index for brightness */ |
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+ |
|
27 |
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struct { |
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char *name; /* file name */ |
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FILE *fp; /* stream pointer */ |
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COLOR *scan; /* input scanline */ |
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> |
COLOR *scan[WINSIZ]; /* input scanline window */ |
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COLOR coef; /* coefficient */ |
32 |
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COLOR expos; /* recorded exposure */ |
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} input[MAXINP]; /* input pictures */ |
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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 vbrtin[] = "li"; |
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char vbrtout[] = "lo"; |
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char *vcolexp[3] = {"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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|
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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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|
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int xres=0, yres=0; /* picture resolution */ |
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|
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int xpos, ypos; /* picture position */ |
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|
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int wrongformat = 0; |
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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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{ |
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putchar('\t'); |
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fputs(s, stdout); |
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} |
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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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extern double l_redin(), l_grnin(), l_bluin(), atof(); |
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double f; |
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int a; |
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|
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funset(vcolin[RED], 1, l_redin); |
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funset(vcolin[GRN], 1, l_grnin); |
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funset(vcolin[BLU], 1, l_bluin); |
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|
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for (a = 1; a < argc; a++) |
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int a, i; |
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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 '\0': |
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case 's': |
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case 'c': |
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goto getfiles; |
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case 'x': |
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xres = atoi(argv[++a]); |
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break; |
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continue; |
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case 'y': |
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yres = atoi(argv[++a]); |
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break; |
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continue; |
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case 'w': |
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nowarn = !nowarn; |
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break; |
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continue; |
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case 'f': |
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fcompile(argv[++a]); |
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break; |
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case 'e': |
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scompile(NULL, argv[++a]); |
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break; |
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default: |
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goto usage; |
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a++; |
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continue; |
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} |
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else |
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break; |
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getfiles: |
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for (nfiles = 0; nfiles < MAXINP; nfiles++) |
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break; |
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} |
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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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} |
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nfiles = 0; |
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for ( ; a < argc; a++) { |
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if (nfiles >= MAXINP) { |
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input[nfiles].name = "<stdin>"; |
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input[nfiles].fp = stdin; |
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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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case 's': |
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f = atof(argv[++a]); |
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scalecolor(input[nfiles].coef, f); |
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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 (input[nfiles].fp == NULL) { |
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eputs(argv[a]); |
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eputs(": cannot open\n"); |
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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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fputs(input[nfiles].name, stdout); |
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fputs(":\n", stdout); |
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getheader(input[nfiles].fp, tputs); |
132 |
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if (fgetresolu(&xpos, &ypos, input[nfiles].fp) != |
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(YMAJOR|YDECR)) { |
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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) { |
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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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eputs(argv[0]); |
143 |
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eputs(": resolution mismatch\n"); |
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quit(1); |
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} |
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input[nfiles].scan = (COLOR *)emalloc(xres*sizeof(COLOR)); |
128 |
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checkfile(); |
129 |
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original = 0; |
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nfiles++; |
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} |
132 |
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init(); /* set constant expressions */ |
133 |
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/* go back and get expressions */ |
134 |
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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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case 'y': |
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a++; |
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continue; |
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case 'w': |
142 |
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continue; |
143 |
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case 'f': |
144 |
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fcompile(argv[++a]); |
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continue; |
146 |
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case 'e': |
147 |
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scompile(argv[++a], NULL, 0); |
148 |
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continue; |
149 |
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} |
150 |
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break; |
151 |
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} |
152 |
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/* complete header */ |
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printargs(argc, argv, stdout); |
154 |
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fputformat(COLRFMT, stdout); |
155 |
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putchar('\n'); |
156 |
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fputresolu(YMAJOR|YDECR, xres, yres, stdout); |
157 |
+ |
/* combine pictures */ |
158 |
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combine(); |
159 |
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quit(0); |
160 |
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usage: |
161 |
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eputs("Usage: "); |
162 |
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eputs(argv[0]); |
163 |
< |
eputs(" [-w][-x xr][-y yr][-e expr][-f file] [ [-s f][-c r g b] picture ..]\n"); |
163 |
> |
eputs( |
164 |
> |
" [-w][-h][-x xr][-y yr][-e expr][-f file] [ [-s f][-c r g b] pic ..]\n"); |
165 |
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quit(1); |
166 |
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} |
167 |
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|
168 |
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|
169 |
+ |
tputs(s) /* put out string preceded by a tab */ |
170 |
+ |
char *s; |
171 |
+ |
{ |
172 |
+ |
char fmt[32]; |
173 |
+ |
double d; |
174 |
+ |
COLOR ctmp; |
175 |
+ |
|
176 |
+ |
if (isformat(s)) { /* check format */ |
177 |
+ |
formatval(fmt, s); |
178 |
+ |
wrongformat = strcmp(fmt, COLRFMT); |
179 |
+ |
return; /* don't echo */ |
180 |
+ |
} |
181 |
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if (isexpos(s)) { /* exposure */ |
182 |
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d = exposval(s); |
183 |
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scalecolor(input[nfiles].expos, d); |
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if (original) |
185 |
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scalecolor(input[nfiles].coef, 1.0/d); |
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} else if (iscolcor(s)) { /* color correction */ |
187 |
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colcorval(ctmp, s); |
188 |
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multcolor(input[nfiles].expos, ctmp); |
189 |
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if (original) { |
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colval(input[nfiles].coef,RED) /= colval(ctmp,RED); |
191 |
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colval(input[nfiles].coef,GRN) /= colval(ctmp,GRN); |
192 |
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colval(input[nfiles].coef,BLU) /= colval(ctmp,BLU); |
193 |
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} |
194 |
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} |
195 |
+ |
/* echo line */ |
196 |
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putchar('\t'); |
197 |
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fputs(s, stdout); |
198 |
+ |
} |
199 |
+ |
|
200 |
+ |
|
201 |
+ |
checkfile() /* ready a file */ |
202 |
+ |
{ |
203 |
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register int i; |
204 |
+ |
/* process header */ |
205 |
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fputs(input[nfiles].name, stdout); |
206 |
+ |
fputs(":\n", stdout); |
207 |
+ |
getheader(input[nfiles].fp, tputs, NULL); |
208 |
+ |
if (wrongformat) { |
209 |
+ |
eputs(input[nfiles].name); |
210 |
+ |
eputs(": not in Radiance picture format\n"); |
211 |
+ |
quit(1); |
212 |
+ |
} |
213 |
+ |
if (fgetresolu(&xpos, &ypos, input[nfiles].fp) != (YMAJOR|YDECR)) { |
214 |
+ |
eputs(input[nfiles].name); |
215 |
+ |
eputs(": bad picture size\n"); |
216 |
+ |
quit(1); |
217 |
+ |
} |
218 |
+ |
if (xres == 0 && yres == 0) { |
219 |
+ |
xres = xpos; |
220 |
+ |
yres = ypos; |
221 |
+ |
} else if (xpos != xres || ypos != yres) { |
222 |
+ |
eputs(input[nfiles].name); |
223 |
+ |
eputs(": resolution mismatch\n"); |
224 |
+ |
quit(1); |
225 |
+ |
} |
226 |
+ |
/* allocate scanlines */ |
227 |
+ |
for (i = 0; i < WINSIZ; i++) |
228 |
+ |
input[nfiles].scan[i] = (COLOR *)emalloc(xres*sizeof(COLOR)); |
229 |
+ |
} |
230 |
+ |
|
231 |
+ |
|
232 |
+ |
init() /* perform final setup */ |
233 |
+ |
{ |
234 |
+ |
double l_colin(), l_expos(); |
235 |
+ |
register int i; |
236 |
+ |
/* prime input */ |
237 |
+ |
for (ypos = yres+(MIDSCN-1); ypos >= yres; ypos--) |
238 |
+ |
advance(); |
239 |
+ |
/* define constants */ |
240 |
+ |
varset(vnfiles, ':', (double)nfiles); |
241 |
+ |
varset(vxres, ':', (double)xres); |
242 |
+ |
varset(vyres, ':', (double)yres); |
243 |
+ |
/* set functions */ |
244 |
+ |
for (i = 0; i < 3; i++) { |
245 |
+ |
funset(vcolexp[i], 1, ':', l_expos); |
246 |
+ |
funset(vcolin[i], 1, '=', l_colin); |
247 |
+ |
} |
248 |
+ |
funset(vbrtexp, 1, ':', l_expos); |
249 |
+ |
funset(vbrtin, 1, '=', l_colin); |
250 |
+ |
} |
251 |
+ |
|
252 |
+ |
|
253 |
|
combine() /* combine pictures */ |
254 |
|
{ |
255 |
< |
EPNODE *coldef[3]; |
255 |
> |
EPNODE *coldef[3], *brtdef; |
256 |
|
COLOR *scanout; |
257 |
+ |
double d; |
258 |
|
register int i, j; |
259 |
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/* check defined variables */ |
260 |
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for (j = 0; j < 3; j++) { |
263 |
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else |
264 |
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coldef[j] = NULL; |
265 |
|
} |
266 |
+ |
if (vardefined(vbrtout)) |
267 |
+ |
brtdef = eparse(vbrtout); |
268 |
+ |
else |
269 |
+ |
brtdef = NULL; |
270 |
|
/* allocate scanline */ |
271 |
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scanout = (COLOR *)emalloc(xres*sizeof(COLOR)); |
272 |
|
/* combine files */ |
273 |
|
for (ypos = yres-1; ypos >= 0; ypos--) { |
274 |
< |
for (i = 0; i < nfiles; i++) |
275 |
< |
if (freadscan(input[i].scan, xres, input[i].fp) < 0) { |
276 |
< |
eputs(input[i].name); |
277 |
< |
eputs(": read error\n"); |
278 |
< |
quit(1); |
274 |
> |
advance(); |
275 |
> |
varset(vypos, '=', (double)ypos); |
276 |
> |
for (xpos = 0; xpos < xres; xpos++) { |
277 |
> |
varset(vxpos, '=', (double)xpos); |
278 |
> |
eclock++; |
279 |
> |
if (brtdef != NULL) { |
280 |
> |
d = evalue(brtdef); |
281 |
> |
if (d < 0.0) |
282 |
> |
d = 0.0; |
283 |
> |
setcolor(scanout[xpos], d, d, d); |
284 |
> |
} else { |
285 |
> |
for (j = 0; j < 3; j++) { |
286 |
> |
if (coldef[j] != NULL) { |
287 |
> |
d = evalue(coldef[j]); |
288 |
> |
} else { |
289 |
> |
d = 0.0; |
290 |
> |
for (i = 0; i < nfiles; i++) |
291 |
> |
d += colval(input[i].scan[MIDSCN][xpos],j); |
292 |
|
} |
293 |
< |
varset(vypos, (double)ypos); |
294 |
< |
for (xpos = 0; xpos < xres; xpos++) { |
295 |
< |
varset(vxpos, (double)xpos); |
296 |
< |
eclock++; |
188 |
< |
for (j = 0; j < 3; j++) { |
189 |
< |
if (coldef[j] != NULL) { |
190 |
< |
colval(scanout[xpos],j) = |
191 |
< |
evalue(coldef[j]); |
192 |
< |
} else { |
193 |
< |
colval(scanout[xpos],j) = 0.0; |
194 |
< |
for (i = 0; i < nfiles; i++) |
195 |
< |
colval(scanout[xpos],j) += |
196 |
< |
colval(input[i].coef,j) * |
197 |
< |
colval(input[i].scan[xpos],j); |
198 |
< |
} |
199 |
< |
if (colval(scanout[xpos],j) < 0.0) |
200 |
< |
colval(scanout[xpos],j) = 0.0; |
201 |
< |
} |
293 |
> |
if (d < 0.0) |
294 |
> |
d = 0.0; |
295 |
> |
colval(scanout[xpos],j) = d; |
296 |
> |
} |
297 |
|
} |
298 |
< |
if (fwritescan(scanout, xres, stdout) < 0) { |
299 |
< |
eputs("write error\n"); |
300 |
< |
quit(1); |
301 |
< |
} |
298 |
> |
} |
299 |
> |
if (fwritescan(scanout, xres, stdout) < 0) { |
300 |
> |
perror("write error"); |
301 |
> |
quit(1); |
302 |
> |
} |
303 |
|
} |
304 |
|
efree(scanout); |
305 |
|
} |
306 |
|
|
307 |
|
|
308 |
< |
double |
213 |
< |
colin(fn, ci) /* return color value for picture */ |
214 |
< |
register int fn, ci; |
308 |
> |
advance() /* read in next scanline */ |
309 |
|
{ |
310 |
< |
if (fn == 0) |
311 |
< |
return((double)nfiles); |
312 |
< |
if (fn < 1 || fn > nfiles) { |
313 |
< |
errno = EDOM; |
314 |
< |
return(0.0); |
310 |
> |
register COLOR *st; |
311 |
> |
register int i, j; |
312 |
> |
|
313 |
> |
for (i = 0; i < nfiles; i++) { |
314 |
> |
st = input[i].scan[WINSIZ-1]; |
315 |
> |
for (j = WINSIZ-1; j > 0; j--) /* rotate window */ |
316 |
> |
input[i].scan[j] = input[i].scan[j-1]; |
317 |
> |
input[i].scan[0] = st; |
318 |
> |
if (ypos < MIDSCN) /* hit bottom */ |
319 |
> |
continue; |
320 |
> |
if (freadscan(st, xres, input[i].fp) < 0) { |
321 |
> |
eputs(input[i].name); |
322 |
> |
eputs(": read error\n"); |
323 |
> |
quit(1); |
324 |
> |
} |
325 |
> |
for (j = 0; j < xres; j++) /* adjust color */ |
326 |
> |
multcolor(st[j], input[i].coef); |
327 |
|
} |
222 |
– |
return(colval(input[fn-1].scan[xpos],ci)); |
328 |
|
} |
329 |
|
|
330 |
|
|
331 |
|
double |
332 |
< |
l_redin() /* get red color */ |
332 |
> |
l_expos(nam) /* return picture exposure */ |
333 |
> |
register char *nam; |
334 |
|
{ |
335 |
< |
return(colin((int)(argument(1)+.5), RED)); |
336 |
< |
} |
335 |
> |
register int fn, n; |
336 |
> |
double d; |
337 |
|
|
338 |
< |
|
339 |
< |
double |
340 |
< |
l_grnin() /* get green color */ |
341 |
< |
{ |
342 |
< |
return(colin((int)(argument(1)+.5), GRN)); |
338 |
> |
d = argument(1); |
339 |
> |
if (d > -.5 && d < .5) |
340 |
> |
return((double)nfiles); |
341 |
> |
fn = d - .5; |
342 |
> |
if (fn < 0 || fn >= nfiles) { |
343 |
> |
errno = EDOM; |
344 |
> |
return(0.0); |
345 |
> |
} |
346 |
> |
if (nam == vbrtexp) |
347 |
> |
return(bright(input[fn].expos)); |
348 |
> |
n = 3; |
349 |
> |
while (n--) |
350 |
> |
if (nam == vcolexp[n]) |
351 |
> |
return(colval(input[fn].expos,n)); |
352 |
> |
eputs("Bad call to l_expos()!\n"); |
353 |
> |
quit(1); |
354 |
|
} |
355 |
|
|
356 |
|
|
357 |
|
double |
358 |
< |
l_bluin() /* get blue color */ |
358 |
> |
l_colin(nam) /* return color value for picture */ |
359 |
> |
register char *nam; |
360 |
|
{ |
361 |
< |
return(colin((int)(argument(1)+.5), BLU)); |
361 |
> |
int fn; |
362 |
> |
register int n, xoff, yoff; |
363 |
> |
double d; |
364 |
> |
|
365 |
> |
d = argument(1); |
366 |
> |
if (d > -.5 && d < .5) |
367 |
> |
return((double)nfiles); |
368 |
> |
fn = d - .5; |
369 |
> |
if (fn < 0 || fn >= nfiles) { |
370 |
> |
errno = EDOM; |
371 |
> |
return(0.0); |
372 |
> |
} |
373 |
> |
xoff = yoff = 0; |
374 |
> |
n = nargum(); |
375 |
> |
if (n >= 2) { |
376 |
> |
d = argument(2); |
377 |
> |
if (d < 0.0) { |
378 |
> |
xoff = d-.5; |
379 |
> |
if (xpos+xoff < 0) |
380 |
> |
xoff = -xpos; |
381 |
> |
} else { |
382 |
> |
xoff = d+.5; |
383 |
> |
if (xpos+xoff >= xres) |
384 |
> |
xoff = xres-1-xpos; |
385 |
> |
} |
386 |
> |
} |
387 |
> |
if (n >= 3) { |
388 |
> |
d = argument(3); |
389 |
> |
if (d < 0.0) { |
390 |
> |
yoff = d-.5; |
391 |
> |
if (yoff+MIDSCN < 0) |
392 |
> |
yoff = -MIDSCN; |
393 |
> |
if (ypos+yoff < 0) |
394 |
> |
yoff = -ypos; |
395 |
> |
} else { |
396 |
> |
yoff = d+.5; |
397 |
> |
if (yoff+MIDSCN >= WINSIZ) |
398 |
> |
yoff = WINSIZ-1-MIDSCN; |
399 |
> |
if (ypos+yoff >= yres) |
400 |
> |
yoff = yres-1-ypos; |
401 |
> |
} |
402 |
> |
} |
403 |
> |
if (nam == vbrtin) |
404 |
> |
return(bright(input[fn].scan[MIDSCN+yoff][xpos+xoff])); |
405 |
> |
n = 3; |
406 |
> |
while (n--) |
407 |
> |
if (nam == vcolin[n]) |
408 |
> |
return(colval(input[fn].scan[MIDSCN+yoff][xpos+xoff],n)); |
409 |
> |
eputs("Bad call to l_colin()!\n"); |
410 |
> |
quit(1); |
411 |
|
} |
412 |
|
|
413 |
|
|