1 |
greg |
2.6 |
/* Copyright (c) 1992 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 |
greg |
1.23 |
#include "resolu.h" |
20 |
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|
21 |
greg |
1.1 |
#include "calcomp.h" |
22 |
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|
23 |
greg |
1.6 |
#define MAXINP 32 /* maximum number of input files */ |
24 |
greg |
1.14 |
#define WINSIZ 9 /* scanline window size */ |
25 |
|
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#define MIDSCN 4 /* current scan position */ |
26 |
greg |
1.1 |
|
27 |
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struct { |
28 |
greg |
1.19 |
char *name; /* file or command name */ |
29 |
greg |
1.1 |
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 |
greg |
2.6 |
char Command[] = "<Command>"; |
38 |
greg |
1.21 |
char vcolin[3][4] = {"ri", "gi", "bi"}; |
39 |
|
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char vcolout[3][4] = {"ro", "go", "bo"}; |
40 |
greg |
1.15 |
char vbrtin[] = "li"; |
41 |
|
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char vbrtout[] = "lo"; |
42 |
greg |
1.21 |
char vcolexp[3][4] = {"re", "ge", "be"}; |
43 |
greg |
1.17 |
char vbrtexp[] = "le"; |
44 |
greg |
1.1 |
|
45 |
greg |
1.18 |
char vnfiles[] = "nfiles"; |
46 |
|
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char vxmax[] = "xmax"; |
47 |
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char vymax[] = "ymax"; |
48 |
|
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char vxres[] = "xres"; |
49 |
|
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char vyres[] = "yres"; |
50 |
|
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char vxpos[] = "x"; |
51 |
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char vypos[] = "y"; |
52 |
greg |
1.1 |
|
53 |
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int nowarn = 0; /* no warning messages? */ |
54 |
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55 |
greg |
1.18 |
int xmax = 0, ymax = 0; /* input resolution */ |
56 |
greg |
1.9 |
|
57 |
greg |
1.18 |
int xscan, yscan; /* input position */ |
58 |
greg |
1.1 |
|
59 |
greg |
1.18 |
int xres, yres; /* output resolution */ |
60 |
greg |
1.1 |
|
61 |
greg |
1.18 |
int xpos, ypos; /* output position */ |
62 |
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|
63 |
greg |
1.10 |
int wrongformat = 0; |
64 |
greg |
1.1 |
|
65 |
greg |
1.19 |
FILE *popen(); |
66 |
greg |
1.10 |
|
67 |
greg |
1.19 |
|
68 |
greg |
1.1 |
main(argc, argv) |
69 |
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int argc; |
70 |
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char *argv[]; |
71 |
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{ |
72 |
greg |
1.18 |
int original; |
73 |
greg |
1.3 |
double f; |
74 |
greg |
1.14 |
int a, i; |
75 |
greg |
1.15 |
/* scan options */ |
76 |
|
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for (a = 1; a < argc; a++) { |
77 |
greg |
1.1 |
if (argv[a][0] == '-') |
78 |
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switch (argv[a][1]) { |
79 |
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case 'x': |
80 |
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case 'y': |
81 |
greg |
1.18 |
a++; |
82 |
greg |
1.15 |
continue; |
83 |
greg |
1.1 |
case 'w': |
84 |
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nowarn = !nowarn; |
85 |
greg |
1.15 |
continue; |
86 |
greg |
1.1 |
case 'f': |
87 |
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case 'e': |
88 |
greg |
1.16 |
a++; |
89 |
greg |
1.15 |
continue; |
90 |
greg |
1.1 |
} |
91 |
greg |
1.15 |
break; |
92 |
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} |
93 |
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/* process files */ |
94 |
greg |
1.17 |
for (nfiles = 0; nfiles < MAXINP; nfiles++) { |
95 |
greg |
1.3 |
setcolor(input[nfiles].coef, 1.0, 1.0, 1.0); |
96 |
greg |
1.17 |
setcolor(input[nfiles].expos, 1.0, 1.0, 1.0); |
97 |
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} |
98 |
greg |
1.1 |
nfiles = 0; |
99 |
greg |
1.18 |
original = 0; |
100 |
greg |
1.1 |
for ( ; a < argc; a++) { |
101 |
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if (nfiles >= MAXINP) { |
102 |
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eputs(argv[0]); |
103 |
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eputs(": too many picture files\n"); |
104 |
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quit(1); |
105 |
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} |
106 |
greg |
1.3 |
if (argv[a][0] == '-') |
107 |
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switch (argv[a][1]) { |
108 |
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case '\0': |
109 |
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input[nfiles].name = "<stdin>"; |
110 |
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input[nfiles].fp = stdin; |
111 |
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break; |
112 |
greg |
1.17 |
case 'o': |
113 |
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original++; |
114 |
greg |
1.22 |
continue; |
115 |
greg |
1.3 |
case 's': |
116 |
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f = atof(argv[++a]); |
117 |
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scalecolor(input[nfiles].coef, f); |
118 |
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continue; |
119 |
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case 'c': |
120 |
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colval(input[nfiles].coef,RED)*=atof(argv[++a]); |
121 |
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colval(input[nfiles].coef,GRN)*=atof(argv[++a]); |
122 |
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colval(input[nfiles].coef,BLU)*=atof(argv[++a]); |
123 |
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continue; |
124 |
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default: |
125 |
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goto usage; |
126 |
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} |
127 |
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else { |
128 |
greg |
2.2 |
if (argv[a][0] == '!') { |
129 |
greg |
2.6 |
input[nfiles].name = Command; |
130 |
greg |
2.2 |
input[nfiles].fp = popen(argv[a]+1, "r"); |
131 |
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} else { |
132 |
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input[nfiles].name = argv[a]; |
133 |
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input[nfiles].fp = fopen(argv[a], "r"); |
134 |
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} |
135 |
greg |
1.1 |
if (input[nfiles].fp == NULL) { |
136 |
greg |
1.6 |
perror(argv[a]); |
137 |
greg |
1.1 |
quit(1); |
138 |
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} |
139 |
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} |
140 |
greg |
1.16 |
checkfile(); |
141 |
greg |
1.18 |
if (original) { |
142 |
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colval(input[nfiles].coef,RED) /= |
143 |
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colval(input[nfiles].expos,RED); |
144 |
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colval(input[nfiles].coef,GRN) /= |
145 |
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colval(input[nfiles].expos,GRN); |
146 |
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colval(input[nfiles].coef,BLU) /= |
147 |
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colval(input[nfiles].expos,BLU); |
148 |
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} |
149 |
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nfiles++; |
150 |
greg |
1.17 |
original = 0; |
151 |
greg |
1.15 |
} |
152 |
greg |
1.18 |
init(); /* set constants */ |
153 |
greg |
1.15 |
/* go back and get expressions */ |
154 |
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for (a = 1; a < argc; a++) { |
155 |
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if (argv[a][0] == '-') |
156 |
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switch (argv[a][1]) { |
157 |
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case 'x': |
158 |
greg |
1.21 |
varset(vxres, ':', eval(argv[++a])); |
159 |
greg |
1.18 |
continue; |
160 |
greg |
1.15 |
case 'y': |
161 |
greg |
1.21 |
varset(vyres, ':', eval(argv[++a])); |
162 |
greg |
1.16 |
continue; |
163 |
greg |
1.15 |
case 'w': |
164 |
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continue; |
165 |
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case 'f': |
166 |
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fcompile(argv[++a]); |
167 |
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continue; |
168 |
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case 'e': |
169 |
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scompile(argv[++a], NULL, 0); |
170 |
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continue; |
171 |
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} |
172 |
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break; |
173 |
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} |
174 |
greg |
1.18 |
/* set/get output resolution */ |
175 |
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if (!vardefined(vxres)) |
176 |
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varset(vxres, ':', (double)xmax); |
177 |
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if (!vardefined(vyres)) |
178 |
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varset(vyres, ':', (double)ymax); |
179 |
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xres = varvalue(vxres) + .5; |
180 |
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yres = varvalue(vyres) + .5; |
181 |
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if (xres <= 0 || yres <= 0) { |
182 |
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eputs(argv[0]); |
183 |
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eputs(": illegal output resolution\n"); |
184 |
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quit(1); |
185 |
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} |
186 |
greg |
1.15 |
/* complete header */ |
187 |
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printargs(argc, argv, stdout); |
188 |
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fputformat(COLRFMT, stdout); |
189 |
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putchar('\n'); |
190 |
greg |
1.23 |
fprtresolu(xres, yres, stdout); |
191 |
greg |
1.15 |
/* combine pictures */ |
192 |
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combine(); |
193 |
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quit(0); |
194 |
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usage: |
195 |
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eputs("Usage: "); |
196 |
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eputs(argv[0]); |
197 |
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eputs( |
198 |
greg |
1.20 |
" [-w][-x xr][-y yr][-e expr][-f file] [ [-s f][-c r g b] pic ..]\n"); |
199 |
greg |
1.15 |
quit(1); |
200 |
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} |
201 |
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202 |
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203 |
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tputs(s) /* put out string preceded by a tab */ |
204 |
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char *s; |
205 |
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{ |
206 |
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char fmt[32]; |
207 |
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double d; |
208 |
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COLOR ctmp; |
209 |
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|
210 |
|
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if (isformat(s)) { /* check format */ |
211 |
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formatval(fmt, s); |
212 |
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wrongformat = strcmp(fmt, COLRFMT); |
213 |
greg |
1.17 |
return; /* don't echo */ |
214 |
|
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} |
215 |
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if (isexpos(s)) { /* exposure */ |
216 |
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d = exposval(s); |
217 |
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scalecolor(input[nfiles].expos, d); |
218 |
|
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} else if (iscolcor(s)) { /* color correction */ |
219 |
greg |
1.15 |
colcorval(ctmp, s); |
220 |
greg |
1.17 |
multcolor(input[nfiles].expos, ctmp); |
221 |
greg |
1.15 |
} |
222 |
greg |
1.17 |
/* echo line */ |
223 |
|
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putchar('\t'); |
224 |
|
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fputs(s, stdout); |
225 |
greg |
1.16 |
} |
226 |
greg |
1.15 |
|
227 |
greg |
1.16 |
|
228 |
|
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checkfile() /* ready a file */ |
229 |
|
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{ |
230 |
greg |
1.18 |
int xinp, yinp; |
231 |
greg |
1.16 |
register int i; |
232 |
|
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/* process header */ |
233 |
|
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fputs(input[nfiles].name, stdout); |
234 |
|
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fputs(":\n", stdout); |
235 |
|
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getheader(input[nfiles].fp, tputs, NULL); |
236 |
|
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if (wrongformat) { |
237 |
|
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eputs(input[nfiles].name); |
238 |
|
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eputs(": not in Radiance picture format\n"); |
239 |
|
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quit(1); |
240 |
|
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} |
241 |
greg |
1.23 |
if (fgetresolu(&xinp, &yinp, input[nfiles].fp) < 0) { |
242 |
greg |
1.16 |
eputs(input[nfiles].name); |
243 |
|
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eputs(": bad picture size\n"); |
244 |
|
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quit(1); |
245 |
|
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} |
246 |
greg |
1.18 |
if (xmax == 0 && ymax == 0) { |
247 |
|
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xmax = xinp; |
248 |
|
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ymax = yinp; |
249 |
|
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} else if (xinp != xmax || yinp != ymax) { |
250 |
greg |
1.16 |
eputs(input[nfiles].name); |
251 |
|
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eputs(": resolution mismatch\n"); |
252 |
|
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quit(1); |
253 |
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} |
254 |
|
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/* allocate scanlines */ |
255 |
|
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for (i = 0; i < WINSIZ; i++) |
256 |
greg |
1.18 |
input[nfiles].scan[i] = (COLOR *)emalloc(xmax*sizeof(COLOR)); |
257 |
greg |
1.15 |
} |
258 |
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|
259 |
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|
260 |
greg |
1.18 |
init() /* perform final setup */ |
261 |
greg |
1.15 |
{ |
262 |
greg |
1.17 |
double l_colin(), l_expos(); |
263 |
greg |
1.16 |
register int i; |
264 |
greg |
1.15 |
/* define constants */ |
265 |
|
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varset(vnfiles, ':', (double)nfiles); |
266 |
greg |
1.18 |
varset(vxmax, ':', (double)xmax); |
267 |
|
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varset(vymax, ':', (double)ymax); |
268 |
greg |
1.15 |
/* set functions */ |
269 |
|
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for (i = 0; i < 3; i++) { |
270 |
greg |
1.17 |
funset(vcolexp[i], 1, ':', l_expos); |
271 |
greg |
1.15 |
funset(vcolin[i], 1, '=', l_colin); |
272 |
|
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} |
273 |
greg |
1.17 |
funset(vbrtexp, 1, ':', l_expos); |
274 |
greg |
1.15 |
funset(vbrtin, 1, '=', l_colin); |
275 |
greg |
1.1 |
} |
276 |
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|
277 |
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|
278 |
|
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combine() /* combine pictures */ |
279 |
|
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{ |
280 |
greg |
1.8 |
EPNODE *coldef[3], *brtdef; |
281 |
greg |
1.1 |
COLOR *scanout; |
282 |
greg |
1.8 |
double d; |
283 |
greg |
1.1 |
register int i, j; |
284 |
|
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/* check defined variables */ |
285 |
greg |
1.4 |
for (j = 0; j < 3; j++) { |
286 |
|
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if (vardefined(vcolout[j])) |
287 |
|
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coldef[j] = eparse(vcolout[j]); |
288 |
|
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else |
289 |
|
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coldef[j] = NULL; |
290 |
|
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} |
291 |
greg |
1.8 |
if (vardefined(vbrtout)) |
292 |
|
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brtdef = eparse(vbrtout); |
293 |
|
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else |
294 |
|
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brtdef = NULL; |
295 |
greg |
1.1 |
/* allocate scanline */ |
296 |
|
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scanout = (COLOR *)emalloc(xres*sizeof(COLOR)); |
297 |
greg |
1.18 |
/* set input position */ |
298 |
|
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yscan = ymax+MIDSCN; |
299 |
greg |
1.1 |
/* combine files */ |
300 |
|
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for (ypos = yres-1; ypos >= 0; ypos--) { |
301 |
greg |
1.14 |
advance(); |
302 |
greg |
1.11 |
varset(vypos, '=', (double)ypos); |
303 |
greg |
1.8 |
for (xpos = 0; xpos < xres; xpos++) { |
304 |
greg |
1.18 |
xscan = (long)xpos*xmax/xres; |
305 |
greg |
1.11 |
varset(vxpos, '=', (double)xpos); |
306 |
greg |
1.8 |
eclock++; |
307 |
|
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if (brtdef != NULL) { |
308 |
|
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d = evalue(brtdef); |
309 |
|
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if (d < 0.0) |
310 |
|
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d = 0.0; |
311 |
|
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setcolor(scanout[xpos], d, d, d); |
312 |
|
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} else { |
313 |
|
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for (j = 0; j < 3; j++) { |
314 |
|
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if (coldef[j] != NULL) { |
315 |
greg |
1.13 |
d = evalue(coldef[j]); |
316 |
greg |
1.8 |
} else { |
317 |
greg |
1.13 |
d = 0.0; |
318 |
greg |
1.8 |
for (i = 0; i < nfiles; i++) |
319 |
greg |
1.18 |
d += colval(input[i].scan[MIDSCN][xscan],j); |
320 |
greg |
1.1 |
} |
321 |
greg |
1.13 |
if (d < 0.0) |
322 |
|
|
d = 0.0; |
323 |
|
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colval(scanout[xpos],j) = d; |
324 |
greg |
1.8 |
} |
325 |
greg |
1.1 |
} |
326 |
greg |
1.8 |
} |
327 |
|
|
if (fwritescan(scanout, xres, stdout) < 0) { |
328 |
|
|
perror("write error"); |
329 |
|
|
quit(1); |
330 |
|
|
} |
331 |
greg |
1.1 |
} |
332 |
|
|
efree(scanout); |
333 |
|
|
} |
334 |
|
|
|
335 |
|
|
|
336 |
greg |
1.18 |
advance() /* read in data for next scanline */ |
337 |
greg |
1.14 |
{ |
338 |
greg |
2.4 |
extern double fabs(); |
339 |
greg |
1.18 |
int ytarget; |
340 |
greg |
1.14 |
register COLOR *st; |
341 |
|
|
register int i, j; |
342 |
|
|
|
343 |
greg |
1.18 |
for (ytarget = (long)ypos*ymax/yres; yscan > ytarget; yscan--) |
344 |
|
|
for (i = 0; i < nfiles; i++) { |
345 |
|
|
st = input[i].scan[WINSIZ-1]; |
346 |
|
|
for (j = WINSIZ-1; j > 0; j--) /* rotate window */ |
347 |
|
|
input[i].scan[j] = input[i].scan[j-1]; |
348 |
|
|
input[i].scan[0] = st; |
349 |
|
|
if (yscan <= MIDSCN) /* hit bottom? */ |
350 |
|
|
continue; |
351 |
greg |
2.4 |
if (freadscan(st, xmax, input[i].fp) < 0) { /* read */ |
352 |
greg |
1.18 |
eputs(input[i].name); |
353 |
|
|
eputs(": read error\n"); |
354 |
|
|
quit(1); |
355 |
|
|
} |
356 |
greg |
2.4 |
if (fabs(colval(input[i].coef,RED)-1.0) > 1e-3 || |
357 |
|
|
fabs(colval(input[i].coef,GRN)-1.0) > 1e-3 || |
358 |
|
|
fabs(colval(input[i].coef,BLU)-1.0) > 1e-3) |
359 |
|
|
for (j = 0; j < xmax; j++) /* adjust color */ |
360 |
|
|
multcolor(st[j], input[i].coef); |
361 |
greg |
1.14 |
} |
362 |
|
|
} |
363 |
|
|
|
364 |
|
|
|
365 |
greg |
1.1 |
double |
366 |
greg |
1.17 |
l_expos(nam) /* return picture exposure */ |
367 |
greg |
1.15 |
register char *nam; |
368 |
greg |
1.1 |
{ |
369 |
greg |
1.15 |
register int fn, n; |
370 |
greg |
1.14 |
|
371 |
greg |
1.18 |
fn = argument(1) - .5; |
372 |
|
|
if (fn < 0 || fn >= nfiles) |
373 |
|
|
return(1.0); |
374 |
greg |
1.17 |
if (nam == vbrtexp) |
375 |
|
|
return(bright(input[fn].expos)); |
376 |
greg |
1.15 |
n = 3; |
377 |
|
|
while (n--) |
378 |
greg |
1.17 |
if (nam == vcolexp[n]) |
379 |
|
|
return(colval(input[fn].expos,n)); |
380 |
|
|
eputs("Bad call to l_expos()!\n"); |
381 |
greg |
1.15 |
quit(1); |
382 |
|
|
} |
383 |
|
|
|
384 |
|
|
|
385 |
|
|
double |
386 |
|
|
l_colin(nam) /* return color value for picture */ |
387 |
|
|
register char *nam; |
388 |
|
|
{ |
389 |
|
|
int fn; |
390 |
|
|
register int n, xoff, yoff; |
391 |
|
|
double d; |
392 |
|
|
|
393 |
greg |
1.16 |
d = argument(1); |
394 |
|
|
if (d > -.5 && d < .5) |
395 |
|
|
return((double)nfiles); |
396 |
|
|
fn = d - .5; |
397 |
|
|
if (fn < 0 || fn >= nfiles) { |
398 |
greg |
1.15 |
errno = EDOM; |
399 |
|
|
return(0.0); |
400 |
|
|
} |
401 |
greg |
1.14 |
xoff = yoff = 0; |
402 |
|
|
n = nargum(); |
403 |
|
|
if (n >= 2) { |
404 |
|
|
d = argument(2); |
405 |
|
|
if (d < 0.0) { |
406 |
|
|
xoff = d-.5; |
407 |
greg |
1.18 |
if (xscan+xoff < 0) |
408 |
|
|
xoff = -xscan; |
409 |
greg |
1.14 |
} else { |
410 |
|
|
xoff = d+.5; |
411 |
greg |
1.18 |
if (xscan+xoff >= xmax) |
412 |
|
|
xoff = xmax-1-xscan; |
413 |
greg |
1.14 |
} |
414 |
|
|
} |
415 |
|
|
if (n >= 3) { |
416 |
|
|
d = argument(3); |
417 |
|
|
if (d < 0.0) { |
418 |
|
|
yoff = d-.5; |
419 |
|
|
if (yoff+MIDSCN < 0) |
420 |
|
|
yoff = -MIDSCN; |
421 |
greg |
1.18 |
if (yscan+yoff < 0) |
422 |
|
|
yoff = -yscan; |
423 |
greg |
1.14 |
} else { |
424 |
|
|
yoff = d+.5; |
425 |
|
|
if (yoff+MIDSCN >= WINSIZ) |
426 |
|
|
yoff = WINSIZ-1-MIDSCN; |
427 |
greg |
1.18 |
if (yscan+yoff >= ymax) |
428 |
|
|
yoff = ymax-1-yscan; |
429 |
greg |
1.14 |
} |
430 |
|
|
} |
431 |
greg |
1.15 |
if (nam == vbrtin) |
432 |
greg |
1.18 |
return(bright(input[fn].scan[MIDSCN+yoff][xscan+xoff])); |
433 |
greg |
1.15 |
n = 3; |
434 |
|
|
while (n--) |
435 |
|
|
if (nam == vcolin[n]) |
436 |
greg |
1.18 |
return(colval(input[fn].scan[MIDSCN+yoff][xscan+xoff],n)); |
437 |
greg |
1.15 |
eputs("Bad call to l_colin()!\n"); |
438 |
|
|
quit(1); |
439 |
greg |
1.1 |
} |
440 |
|
|
|
441 |
|
|
|
442 |
|
|
wputs(msg) |
443 |
|
|
char *msg; |
444 |
|
|
{ |
445 |
|
|
if (!nowarn) |
446 |
|
|
eputs(msg); |
447 |
|
|
} |
448 |
|
|
|
449 |
|
|
|
450 |
|
|
eputs(msg) |
451 |
|
|
char *msg; |
452 |
|
|
{ |
453 |
|
|
fputs(msg, stderr); |
454 |
|
|
} |
455 |
|
|
|
456 |
|
|
|
457 |
greg |
2.4 |
quit(code) /* exit gracefully */ |
458 |
|
|
int code; |
459 |
|
|
{ |
460 |
greg |
2.5 |
register int i; |
461 |
|
|
/* close input files */ |
462 |
|
|
for (i = 0; i < nfiles; i++) |
463 |
greg |
2.6 |
if (input[i].name == Command) |
464 |
|
|
pclose(input[i].fp); |
465 |
|
|
else |
466 |
|
|
fclose(input[i].fp); |
467 |
greg |
1.1 |
exit(code); |
468 |
|
|
} |