1 |
greg |
1.8 |
/* Copyright (c) 1991 Regents of the University of California */ |
2 |
greg |
1.1 |
|
3 |
|
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#ifndef lint |
4 |
|
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static char SCCSid[] = "$SunId$ LBL"; |
5 |
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#endif |
6 |
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7 |
|
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/* |
8 |
|
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* Combine picture files according to calcomp functions. |
9 |
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* |
10 |
|
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* 1/4/89 |
11 |
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*/ |
12 |
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13 |
|
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#include <stdio.h> |
14 |
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15 |
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#include <errno.h> |
16 |
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17 |
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#include "color.h" |
18 |
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|
19 |
|
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#include "calcomp.h" |
20 |
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|
21 |
greg |
1.6 |
#define MAXINP 32 /* maximum number of input files */ |
22 |
greg |
1.14 |
#define WINSIZ 9 /* scanline window size */ |
23 |
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#define MIDSCN 4 /* current scan position */ |
24 |
greg |
1.1 |
|
25 |
greg |
1.14 |
#define BRT (-1) /* special index for brightness */ |
26 |
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|
27 |
greg |
1.1 |
struct { |
28 |
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char *name; /* file name */ |
29 |
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FILE *fp; /* stream pointer */ |
30 |
greg |
1.14 |
COLOR *scan[WINSIZ]; /* input scanline window */ |
31 |
greg |
1.3 |
COLOR coef; /* coefficient */ |
32 |
greg |
1.17 |
COLOR expos; /* recorded exposure */ |
33 |
greg |
1.1 |
} input[MAXINP]; /* input pictures */ |
34 |
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35 |
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int nfiles; /* number of input files */ |
36 |
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37 |
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char *vcolin[3] = {"ri", "gi", "bi"}; |
38 |
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char *vcolout[3] = {"ro", "go", "bo"}; |
39 |
greg |
1.15 |
char vbrtin[] = "li"; |
40 |
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char vbrtout[] = "lo"; |
41 |
greg |
1.17 |
char *vcolexp[3] = {"re", "ge", "be"}; |
42 |
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char vbrtexp[] = "le"; |
43 |
greg |
1.1 |
|
44 |
greg |
1.8 |
#define vnfiles "nfiles" |
45 |
|
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#define vxres "xres" |
46 |
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#define vyres "yres" |
47 |
greg |
1.1 |
#define vxpos "x" |
48 |
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#define vypos "y" |
49 |
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|
50 |
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int nowarn = 0; /* no warning messages? */ |
51 |
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52 |
greg |
1.9 |
int original = 0; /* origninal values? */ |
53 |
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54 |
greg |
1.1 |
int xres=0, yres=0; /* picture resolution */ |
55 |
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56 |
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int xpos, ypos; /* picture position */ |
57 |
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58 |
greg |
1.10 |
int wrongformat = 0; |
59 |
greg |
1.1 |
|
60 |
greg |
1.10 |
|
61 |
greg |
1.1 |
main(argc, argv) |
62 |
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int argc; |
63 |
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char *argv[]; |
64 |
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{ |
65 |
greg |
1.3 |
double f; |
66 |
greg |
1.14 |
int a, i; |
67 |
greg |
1.15 |
/* scan options */ |
68 |
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for (a = 1; a < argc; a++) { |
69 |
greg |
1.1 |
if (argv[a][0] == '-') |
70 |
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switch (argv[a][1]) { |
71 |
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case 'x': |
72 |
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xres = atoi(argv[++a]); |
73 |
greg |
1.15 |
continue; |
74 |
greg |
1.1 |
case 'y': |
75 |
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yres = atoi(argv[++a]); |
76 |
greg |
1.15 |
continue; |
77 |
greg |
1.1 |
case 'w': |
78 |
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nowarn = !nowarn; |
79 |
greg |
1.15 |
continue; |
80 |
greg |
1.1 |
case 'f': |
81 |
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case 'e': |
82 |
greg |
1.16 |
a++; |
83 |
greg |
1.15 |
continue; |
84 |
greg |
1.1 |
} |
85 |
greg |
1.15 |
break; |
86 |
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} |
87 |
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/* process files */ |
88 |
greg |
1.17 |
for (nfiles = 0; nfiles < MAXINP; nfiles++) { |
89 |
greg |
1.3 |
setcolor(input[nfiles].coef, 1.0, 1.0, 1.0); |
90 |
greg |
1.17 |
setcolor(input[nfiles].expos, 1.0, 1.0, 1.0); |
91 |
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} |
92 |
greg |
1.1 |
nfiles = 0; |
93 |
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for ( ; a < argc; a++) { |
94 |
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if (nfiles >= MAXINP) { |
95 |
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eputs(argv[0]); |
96 |
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eputs(": too many picture files\n"); |
97 |
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quit(1); |
98 |
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} |
99 |
greg |
1.3 |
if (argv[a][0] == '-') |
100 |
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switch (argv[a][1]) { |
101 |
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case '\0': |
102 |
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input[nfiles].name = "<stdin>"; |
103 |
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input[nfiles].fp = stdin; |
104 |
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break; |
105 |
greg |
1.17 |
case 'o': |
106 |
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original++; |
107 |
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break; |
108 |
greg |
1.3 |
case 's': |
109 |
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f = atof(argv[++a]); |
110 |
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scalecolor(input[nfiles].coef, f); |
111 |
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continue; |
112 |
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case 'c': |
113 |
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colval(input[nfiles].coef,RED)*=atof(argv[++a]); |
114 |
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colval(input[nfiles].coef,GRN)*=atof(argv[++a]); |
115 |
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colval(input[nfiles].coef,BLU)*=atof(argv[++a]); |
116 |
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continue; |
117 |
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default: |
118 |
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goto usage; |
119 |
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} |
120 |
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else { |
121 |
greg |
1.1 |
input[nfiles].name = argv[a]; |
122 |
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input[nfiles].fp = fopen(argv[a], "r"); |
123 |
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if (input[nfiles].fp == NULL) { |
124 |
greg |
1.6 |
perror(argv[a]); |
125 |
greg |
1.1 |
quit(1); |
126 |
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} |
127 |
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} |
128 |
greg |
1.16 |
checkfile(); |
129 |
greg |
1.17 |
original = 0; |
130 |
greg |
1.15 |
nfiles++; |
131 |
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} |
132 |
greg |
1.16 |
init(); /* set constant expressions */ |
133 |
greg |
1.15 |
/* go back and get expressions */ |
134 |
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for (a = 1; a < argc; a++) { |
135 |
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if (argv[a][0] == '-') |
136 |
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switch (argv[a][1]) { |
137 |
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case 'x': |
138 |
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case 'y': |
139 |
greg |
1.16 |
a++; |
140 |
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continue; |
141 |
greg |
1.15 |
case 'w': |
142 |
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continue; |
143 |
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case 'f': |
144 |
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fcompile(argv[++a]); |
145 |
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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 */ |
153 |
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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 |
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/* 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 |
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eputs( |
164 |
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" [-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 |
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tputs(s) /* put out string preceded by a tab */ |
170 |
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char *s; |
171 |
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{ |
172 |
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char fmt[32]; |
173 |
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double d; |
174 |
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COLOR ctmp; |
175 |
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176 |
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if (isformat(s)) { /* check format */ |
177 |
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formatval(fmt, s); |
178 |
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wrongformat = strcmp(fmt, COLRFMT); |
179 |
greg |
1.17 |
return; /* don't echo */ |
180 |
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} |
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); |
184 |
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if (original) |
185 |
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scalecolor(input[nfiles].coef, 1.0/d); |
186 |
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} else if (iscolcor(s)) { /* color correction */ |
187 |
greg |
1.15 |
colcorval(ctmp, s); |
188 |
greg |
1.17 |
multcolor(input[nfiles].expos, ctmp); |
189 |
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if (original) { |
190 |
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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 |
greg |
1.15 |
} |
195 |
greg |
1.17 |
/* echo line */ |
196 |
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putchar('\t'); |
197 |
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fputs(s, stdout); |
198 |
greg |
1.16 |
} |
199 |
greg |
1.15 |
|
200 |
greg |
1.16 |
|
201 |
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checkfile() /* ready a file */ |
202 |
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{ |
203 |
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register int i; |
204 |
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/* process header */ |
205 |
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fputs(input[nfiles].name, stdout); |
206 |
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fputs(":\n", stdout); |
207 |
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getheader(input[nfiles].fp, tputs, NULL); |
208 |
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if (wrongformat) { |
209 |
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eputs(input[nfiles].name); |
210 |
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eputs(": not in Radiance picture format\n"); |
211 |
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quit(1); |
212 |
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} |
213 |
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if (fgetresolu(&xpos, &ypos, input[nfiles].fp) != (YMAJOR|YDECR)) { |
214 |
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eputs(input[nfiles].name); |
215 |
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eputs(": bad picture size\n"); |
216 |
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quit(1); |
217 |
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} |
218 |
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if (xres == 0 && yres == 0) { |
219 |
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xres = xpos; |
220 |
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yres = ypos; |
221 |
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} else if (xpos != xres || ypos != yres) { |
222 |
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eputs(input[nfiles].name); |
223 |
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eputs(": resolution mismatch\n"); |
224 |
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quit(1); |
225 |
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} |
226 |
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/* allocate scanlines */ |
227 |
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for (i = 0; i < WINSIZ; i++) |
228 |
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input[nfiles].scan[i] = (COLOR *)emalloc(xres*sizeof(COLOR)); |
229 |
greg |
1.15 |
} |
230 |
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|
231 |
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|
232 |
greg |
1.16 |
init() /* perform final setup */ |
233 |
greg |
1.15 |
{ |
234 |
greg |
1.17 |
double l_colin(), l_expos(); |
235 |
greg |
1.16 |
register int i; |
236 |
greg |
1.15 |
/* prime input */ |
237 |
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for (ypos = yres+(MIDSCN-1); ypos >= yres; ypos--) |
238 |
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advance(); |
239 |
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/* define constants */ |
240 |
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varset(vnfiles, ':', (double)nfiles); |
241 |
|
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varset(vxres, ':', (double)xres); |
242 |
|
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varset(vyres, ':', (double)yres); |
243 |
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/* set functions */ |
244 |
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for (i = 0; i < 3; i++) { |
245 |
greg |
1.17 |
funset(vcolexp[i], 1, ':', l_expos); |
246 |
greg |
1.15 |
funset(vcolin[i], 1, '=', l_colin); |
247 |
|
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} |
248 |
greg |
1.17 |
funset(vbrtexp, 1, ':', l_expos); |
249 |
greg |
1.15 |
funset(vbrtin, 1, '=', l_colin); |
250 |
greg |
1.1 |
} |
251 |
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|
252 |
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253 |
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combine() /* combine pictures */ |
254 |
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{ |
255 |
greg |
1.8 |
EPNODE *coldef[3], *brtdef; |
256 |
greg |
1.1 |
COLOR *scanout; |
257 |
greg |
1.8 |
double d; |
258 |
greg |
1.1 |
register int i, j; |
259 |
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/* check defined variables */ |
260 |
greg |
1.4 |
for (j = 0; j < 3; j++) { |
261 |
|
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if (vardefined(vcolout[j])) |
262 |
|
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coldef[j] = eparse(vcolout[j]); |
263 |
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else |
264 |
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coldef[j] = NULL; |
265 |
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} |
266 |
greg |
1.8 |
if (vardefined(vbrtout)) |
267 |
|
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brtdef = eparse(vbrtout); |
268 |
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else |
269 |
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brtdef = NULL; |
270 |
greg |
1.1 |
/* allocate scanline */ |
271 |
|
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scanout = (COLOR *)emalloc(xres*sizeof(COLOR)); |
272 |
|
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/* combine files */ |
273 |
|
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for (ypos = yres-1; ypos >= 0; ypos--) { |
274 |
greg |
1.14 |
advance(); |
275 |
greg |
1.11 |
varset(vypos, '=', (double)ypos); |
276 |
greg |
1.8 |
for (xpos = 0; xpos < xres; xpos++) { |
277 |
greg |
1.11 |
varset(vxpos, '=', (double)xpos); |
278 |
greg |
1.8 |
eclock++; |
279 |
|
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if (brtdef != NULL) { |
280 |
|
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d = evalue(brtdef); |
281 |
|
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if (d < 0.0) |
282 |
|
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d = 0.0; |
283 |
|
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setcolor(scanout[xpos], d, d, d); |
284 |
|
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} else { |
285 |
|
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for (j = 0; j < 3; j++) { |
286 |
|
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if (coldef[j] != NULL) { |
287 |
greg |
1.13 |
d = evalue(coldef[j]); |
288 |
greg |
1.8 |
} else { |
289 |
greg |
1.13 |
d = 0.0; |
290 |
greg |
1.8 |
for (i = 0; i < nfiles; i++) |
291 |
greg |
1.14 |
d += colval(input[i].scan[MIDSCN][xpos],j); |
292 |
greg |
1.1 |
} |
293 |
greg |
1.13 |
if (d < 0.0) |
294 |
|
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d = 0.0; |
295 |
|
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colval(scanout[xpos],j) = d; |
296 |
greg |
1.8 |
} |
297 |
greg |
1.1 |
} |
298 |
greg |
1.8 |
} |
299 |
|
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if (fwritescan(scanout, xres, stdout) < 0) { |
300 |
|
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perror("write error"); |
301 |
|
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quit(1); |
302 |
|
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} |
303 |
greg |
1.1 |
} |
304 |
|
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efree(scanout); |
305 |
|
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} |
306 |
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|
307 |
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|
308 |
greg |
1.14 |
advance() /* read in next scanline */ |
309 |
|
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{ |
310 |
|
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register COLOR *st; |
311 |
|
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register int i, j; |
312 |
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|
313 |
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for (i = 0; i < nfiles; i++) { |
314 |
|
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st = input[i].scan[WINSIZ-1]; |
315 |
|
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for (j = WINSIZ-1; j > 0; j--) /* rotate window */ |
316 |
|
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input[i].scan[j] = input[i].scan[j-1]; |
317 |
|
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input[i].scan[0] = st; |
318 |
|
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if (ypos < MIDSCN) /* hit bottom */ |
319 |
|
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continue; |
320 |
|
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if (freadscan(st, xres, input[i].fp) < 0) { |
321 |
|
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eputs(input[i].name); |
322 |
|
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eputs(": read error\n"); |
323 |
|
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quit(1); |
324 |
|
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} |
325 |
|
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for (j = 0; j < xres; j++) /* adjust color */ |
326 |
|
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multcolor(st[j], input[i].coef); |
327 |
|
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} |
328 |
|
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} |
329 |
|
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|
330 |
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|
331 |
greg |
1.1 |
double |
332 |
greg |
1.17 |
l_expos(nam) /* return picture exposure */ |
333 |
greg |
1.15 |
register char *nam; |
334 |
greg |
1.1 |
{ |
335 |
greg |
1.15 |
register int fn, n; |
336 |
greg |
1.14 |
double d; |
337 |
|
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|
338 |
greg |
1.16 |
d = argument(1); |
339 |
|
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if (d > -.5 && d < .5) |
340 |
|
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return((double)nfiles); |
341 |
|
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fn = d - .5; |
342 |
|
|
if (fn < 0 || fn >= nfiles) { |
343 |
greg |
1.1 |
errno = EDOM; |
344 |
|
|
return(0.0); |
345 |
|
|
} |
346 |
greg |
1.17 |
if (nam == vbrtexp) |
347 |
|
|
return(bright(input[fn].expos)); |
348 |
greg |
1.15 |
n = 3; |
349 |
|
|
while (n--) |
350 |
greg |
1.17 |
if (nam == vcolexp[n]) |
351 |
|
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return(colval(input[fn].expos,n)); |
352 |
|
|
eputs("Bad call to l_expos()!\n"); |
353 |
greg |
1.15 |
quit(1); |
354 |
|
|
} |
355 |
|
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|
356 |
|
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|
357 |
|
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double |
358 |
|
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l_colin(nam) /* return color value for picture */ |
359 |
|
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register char *nam; |
360 |
|
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{ |
361 |
|
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int fn; |
362 |
|
|
register int n, xoff, yoff; |
363 |
|
|
double d; |
364 |
|
|
|
365 |
greg |
1.16 |
d = argument(1); |
366 |
|
|
if (d > -.5 && d < .5) |
367 |
|
|
return((double)nfiles); |
368 |
|
|
fn = d - .5; |
369 |
|
|
if (fn < 0 || fn >= nfiles) { |
370 |
greg |
1.15 |
errno = EDOM; |
371 |
|
|
return(0.0); |
372 |
|
|
} |
373 |
greg |
1.14 |
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 |
greg |
1.15 |
if (nam == vbrtin) |
404 |
greg |
1.14 |
return(bright(input[fn].scan[MIDSCN+yoff][xpos+xoff])); |
405 |
greg |
1.15 |
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 |
greg |
1.1 |
} |
412 |
|
|
|
413 |
|
|
|
414 |
|
|
wputs(msg) |
415 |
|
|
char *msg; |
416 |
|
|
{ |
417 |
|
|
if (!nowarn) |
418 |
|
|
eputs(msg); |
419 |
|
|
} |
420 |
|
|
|
421 |
|
|
|
422 |
|
|
eputs(msg) |
423 |
|
|
char *msg; |
424 |
|
|
{ |
425 |
|
|
fputs(msg, stderr); |
426 |
|
|
} |
427 |
|
|
|
428 |
|
|
|
429 |
|
|
quit(code) |
430 |
|
|
int code; |
431 |
|
|
{ |
432 |
|
|
exit(code); |
433 |
|
|
} |