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 |
1.1 |
} input[MAXINP]; /* input pictures */ |
33 |
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34 |
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int nfiles; /* number of input files */ |
35 |
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36 |
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char *vcolin[3] = {"ri", "gi", "bi"}; |
37 |
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char *vcolout[3] = {"ro", "go", "bo"}; |
38 |
greg |
1.8 |
#define vbrtin "li" |
39 |
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#define vbrtout "lo" |
40 |
greg |
1.1 |
|
41 |
greg |
1.8 |
#define vnfiles "nfiles" |
42 |
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#define vxres "xres" |
43 |
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#define vyres "yres" |
44 |
greg |
1.1 |
#define vxpos "x" |
45 |
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#define vypos "y" |
46 |
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47 |
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int nowarn = 0; /* no warning messages? */ |
48 |
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49 |
greg |
1.9 |
int original = 0; /* origninal values? */ |
50 |
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51 |
greg |
1.1 |
int xres=0, yres=0; /* picture resolution */ |
52 |
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53 |
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int xpos, ypos; /* picture position */ |
54 |
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55 |
greg |
1.10 |
int wrongformat = 0; |
56 |
greg |
1.1 |
|
57 |
greg |
1.10 |
|
58 |
greg |
1.1 |
tputs(s) /* put out string preceded by a tab */ |
59 |
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char *s; |
60 |
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{ |
61 |
greg |
1.10 |
char fmt[32]; |
62 |
greg |
1.9 |
double d; |
63 |
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COLOR ctmp; |
64 |
greg |
1.10 |
|
65 |
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if (isformat(s)) { /* check format */ |
66 |
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formatval(fmt, s); |
67 |
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wrongformat = strcmp(fmt, COLRFMT); |
68 |
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} else if (original && isexpos(s)) { /* exposure */ |
69 |
greg |
1.9 |
d = 1.0/exposval(s); |
70 |
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scalecolor(input[nfiles].coef, d); |
71 |
greg |
1.10 |
} else if (original && iscolcor(s)) { /* color correction */ |
72 |
greg |
1.9 |
colcorval(ctmp, s); |
73 |
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colval(input[nfiles].coef,RED) /= colval(ctmp,RED); |
74 |
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colval(input[nfiles].coef,GRN) /= colval(ctmp,GRN); |
75 |
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colval(input[nfiles].coef,BLU) /= colval(ctmp,BLU); |
76 |
greg |
1.10 |
} else { /* echo unaffected line */ |
77 |
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putchar('\t'); |
78 |
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fputs(s, stdout); |
79 |
greg |
1.9 |
} |
80 |
greg |
1.10 |
|
81 |
greg |
1.1 |
} |
82 |
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83 |
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84 |
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main(argc, argv) |
85 |
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int argc; |
86 |
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char *argv[]; |
87 |
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{ |
88 |
greg |
1.8 |
extern double l_redin(), l_grnin(), l_bluin(), l_brtin(), atof(); |
89 |
greg |
1.3 |
double f; |
90 |
greg |
1.14 |
int a, i; |
91 |
greg |
1.1 |
|
92 |
greg |
1.12 |
funset(vcolin[RED], 1, '=', l_redin); |
93 |
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funset(vcolin[GRN], 1, '=', l_grnin); |
94 |
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funset(vcolin[BLU], 1, '=', l_bluin); |
95 |
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funset(vbrtin, 1, '=', l_brtin); |
96 |
greg |
1.1 |
|
97 |
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for (a = 1; a < argc; a++) |
98 |
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if (argv[a][0] == '-') |
99 |
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switch (argv[a][1]) { |
100 |
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case '\0': |
101 |
greg |
1.3 |
case 's': |
102 |
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case 'c': |
103 |
greg |
1.1 |
goto getfiles; |
104 |
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case 'x': |
105 |
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xres = atoi(argv[++a]); |
106 |
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break; |
107 |
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case 'y': |
108 |
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yres = atoi(argv[++a]); |
109 |
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break; |
110 |
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case 'w': |
111 |
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nowarn = !nowarn; |
112 |
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break; |
113 |
greg |
1.9 |
case 'o': |
114 |
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original = !original; |
115 |
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break; |
116 |
greg |
1.1 |
case 'f': |
117 |
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fcompile(argv[++a]); |
118 |
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break; |
119 |
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case 'e': |
120 |
greg |
1.7 |
scompile(argv[++a], NULL, 0); |
121 |
greg |
1.1 |
break; |
122 |
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default: |
123 |
greg |
1.3 |
goto usage; |
124 |
greg |
1.1 |
} |
125 |
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else |
126 |
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break; |
127 |
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getfiles: |
128 |
greg |
1.3 |
for (nfiles = 0; nfiles < MAXINP; nfiles++) |
129 |
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setcolor(input[nfiles].coef, 1.0, 1.0, 1.0); |
130 |
greg |
1.1 |
nfiles = 0; |
131 |
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for ( ; a < argc; a++) { |
132 |
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if (nfiles >= MAXINP) { |
133 |
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eputs(argv[0]); |
134 |
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eputs(": too many picture files\n"); |
135 |
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quit(1); |
136 |
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} |
137 |
greg |
1.3 |
if (argv[a][0] == '-') |
138 |
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switch (argv[a][1]) { |
139 |
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case '\0': |
140 |
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input[nfiles].name = "<stdin>"; |
141 |
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input[nfiles].fp = stdin; |
142 |
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break; |
143 |
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case 's': |
144 |
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f = atof(argv[++a]); |
145 |
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scalecolor(input[nfiles].coef, f); |
146 |
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continue; |
147 |
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case 'c': |
148 |
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colval(input[nfiles].coef,RED)*=atof(argv[++a]); |
149 |
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colval(input[nfiles].coef,GRN)*=atof(argv[++a]); |
150 |
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colval(input[nfiles].coef,BLU)*=atof(argv[++a]); |
151 |
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continue; |
152 |
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default: |
153 |
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goto usage; |
154 |
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} |
155 |
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else { |
156 |
greg |
1.1 |
input[nfiles].name = argv[a]; |
157 |
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input[nfiles].fp = fopen(argv[a], "r"); |
158 |
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if (input[nfiles].fp == NULL) { |
159 |
greg |
1.6 |
perror(argv[a]); |
160 |
greg |
1.1 |
quit(1); |
161 |
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} |
162 |
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} |
163 |
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fputs(input[nfiles].name, stdout); |
164 |
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fputs(":\n", stdout); |
165 |
greg |
1.10 |
getheader(input[nfiles].fp, tputs, NULL); |
166 |
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if (wrongformat) { |
167 |
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eputs(input[nfiles].name); |
168 |
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eputs(": not in Radiance picture format\n"); |
169 |
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quit(1); |
170 |
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} |
171 |
greg |
1.5 |
if (fgetresolu(&xpos, &ypos, input[nfiles].fp) != |
172 |
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(YMAJOR|YDECR)) { |
173 |
greg |
1.1 |
eputs(input[nfiles].name); |
174 |
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eputs(": bad picture size\n"); |
175 |
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quit(1); |
176 |
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} |
177 |
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if (xres == 0 && yres == 0) { |
178 |
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xres = xpos; |
179 |
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yres = ypos; |
180 |
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} else if (xpos != xres || ypos != yres) { |
181 |
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eputs(argv[0]); |
182 |
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eputs(": resolution mismatch\n"); |
183 |
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quit(1); |
184 |
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} |
185 |
greg |
1.14 |
for (i = 0; i < WINSIZ; i++) |
186 |
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input[nfiles].scan[i] = |
187 |
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(COLOR *)emalloc(xres*sizeof(COLOR)); |
188 |
greg |
1.1 |
nfiles++; |
189 |
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} |
190 |
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printargs(argc, argv, stdout); |
191 |
greg |
1.10 |
fputformat(COLRFMT, stdout); |
192 |
greg |
1.1 |
putchar('\n'); |
193 |
greg |
1.5 |
fputresolu(YMAJOR|YDECR, xres, yres, stdout); |
194 |
greg |
1.1 |
combine(); |
195 |
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quit(0); |
196 |
greg |
1.3 |
usage: |
197 |
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eputs("Usage: "); |
198 |
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eputs(argv[0]); |
199 |
greg |
1.9 |
eputs( |
200 |
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" [-w][-h][-x xr][-y yr][-e expr][-f file] [ [-s f][-c r g b] pic ..]\n"); |
201 |
greg |
1.3 |
quit(1); |
202 |
greg |
1.1 |
} |
203 |
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204 |
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205 |
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combine() /* combine pictures */ |
206 |
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{ |
207 |
greg |
1.8 |
EPNODE *coldef[3], *brtdef; |
208 |
greg |
1.1 |
COLOR *scanout; |
209 |
greg |
1.8 |
double d; |
210 |
greg |
1.1 |
register int i, j; |
211 |
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/* check defined variables */ |
212 |
greg |
1.4 |
for (j = 0; j < 3; j++) { |
213 |
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if (vardefined(vcolout[j])) |
214 |
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coldef[j] = eparse(vcolout[j]); |
215 |
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else |
216 |
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coldef[j] = NULL; |
217 |
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} |
218 |
greg |
1.8 |
if (vardefined(vbrtout)) |
219 |
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brtdef = eparse(vbrtout); |
220 |
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else |
221 |
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brtdef = NULL; |
222 |
greg |
1.14 |
/* define constants */ |
223 |
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varset(vnfiles, ':', (double)nfiles); |
224 |
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varset(vxres, ':', (double)xres); |
225 |
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varset(vyres, ':', (double)yres); |
226 |
greg |
1.1 |
/* allocate scanline */ |
227 |
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scanout = (COLOR *)emalloc(xres*sizeof(COLOR)); |
228 |
greg |
1.14 |
/* initialize input */ |
229 |
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initinp(); |
230 |
greg |
1.1 |
/* combine files */ |
231 |
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for (ypos = yres-1; ypos >= 0; ypos--) { |
232 |
greg |
1.14 |
advance(); |
233 |
greg |
1.11 |
varset(vypos, '=', (double)ypos); |
234 |
greg |
1.8 |
for (xpos = 0; xpos < xres; xpos++) { |
235 |
greg |
1.11 |
varset(vxpos, '=', (double)xpos); |
236 |
greg |
1.8 |
eclock++; |
237 |
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if (brtdef != NULL) { |
238 |
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d = evalue(brtdef); |
239 |
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if (d < 0.0) |
240 |
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d = 0.0; |
241 |
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setcolor(scanout[xpos], d, d, d); |
242 |
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} else { |
243 |
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for (j = 0; j < 3; j++) { |
244 |
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if (coldef[j] != NULL) { |
245 |
greg |
1.13 |
d = evalue(coldef[j]); |
246 |
greg |
1.8 |
} else { |
247 |
greg |
1.13 |
d = 0.0; |
248 |
greg |
1.8 |
for (i = 0; i < nfiles; i++) |
249 |
greg |
1.14 |
d += colval(input[i].scan[MIDSCN][xpos],j); |
250 |
greg |
1.1 |
} |
251 |
greg |
1.13 |
if (d < 0.0) |
252 |
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d = 0.0; |
253 |
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colval(scanout[xpos],j) = d; |
254 |
greg |
1.8 |
} |
255 |
greg |
1.1 |
} |
256 |
greg |
1.8 |
} |
257 |
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if (fwritescan(scanout, xres, stdout) < 0) { |
258 |
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perror("write error"); |
259 |
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quit(1); |
260 |
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} |
261 |
greg |
1.1 |
} |
262 |
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efree(scanout); |
263 |
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} |
264 |
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265 |
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266 |
greg |
1.14 |
initinp() /* initilize scan windows */ |
267 |
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{ |
268 |
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for (ypos = yres+(MIDSCN-1); ypos >= yres; ypos--) |
269 |
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advance(); |
270 |
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} |
271 |
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272 |
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273 |
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advance() /* read in next scanline */ |
274 |
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{ |
275 |
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register COLOR *st; |
276 |
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register int i, j; |
277 |
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278 |
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for (i = 0; i < nfiles; i++) { |
279 |
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st = input[i].scan[WINSIZ-1]; |
280 |
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for (j = WINSIZ-1; j > 0; j--) /* rotate window */ |
281 |
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input[i].scan[j] = input[i].scan[j-1]; |
282 |
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input[i].scan[0] = st; |
283 |
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if (ypos < MIDSCN) /* hit bottom */ |
284 |
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continue; |
285 |
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if (freadscan(st, xres, input[i].fp) < 0) { |
286 |
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eputs(input[i].name); |
287 |
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eputs(": read error\n"); |
288 |
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quit(1); |
289 |
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} |
290 |
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for (j = 0; j < xres; j++) /* adjust color */ |
291 |
|
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multcolor(st[j], input[i].coef); |
292 |
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} |
293 |
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} |
294 |
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295 |
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296 |
greg |
1.1 |
double |
297 |
greg |
1.14 |
colin(ci) /* return color value for picture */ |
298 |
|
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register int ci; |
299 |
greg |
1.1 |
{ |
300 |
greg |
1.14 |
int n, fn; |
301 |
|
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register int xoff, yoff; |
302 |
|
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double d; |
303 |
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304 |
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fn = (d = argument(1)) - .5; |
305 |
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if (d <= -.5 || fn >= nfiles) { |
306 |
greg |
1.1 |
errno = EDOM; |
307 |
|
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return(0.0); |
308 |
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} |
309 |
greg |
1.14 |
if (d < .5) |
310 |
|
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return((double)nfiles); |
311 |
|
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xoff = yoff = 0; |
312 |
|
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n = nargum(); |
313 |
|
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if (n >= 2) { |
314 |
|
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d = argument(2); |
315 |
|
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if (d < 0.0) { |
316 |
|
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xoff = d-.5; |
317 |
|
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if (xpos+xoff < 0) |
318 |
|
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xoff = -xpos; |
319 |
|
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} else { |
320 |
|
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xoff = d+.5; |
321 |
|
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if (xpos+xoff >= xres) |
322 |
|
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xoff = xres-1-xpos; |
323 |
|
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} |
324 |
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} |
325 |
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if (n >= 3) { |
326 |
|
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d = argument(3); |
327 |
|
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if (d < 0.0) { |
328 |
|
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yoff = d-.5; |
329 |
|
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if (yoff+MIDSCN < 0) |
330 |
|
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yoff = -MIDSCN; |
331 |
|
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if (ypos+yoff < 0) |
332 |
|
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yoff = -ypos; |
333 |
|
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} else { |
334 |
|
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yoff = d+.5; |
335 |
|
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if (yoff+MIDSCN >= WINSIZ) |
336 |
|
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yoff = WINSIZ-1-MIDSCN; |
337 |
|
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if (ypos+yoff >= yres) |
338 |
|
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yoff = yres-1-ypos; |
339 |
|
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} |
340 |
|
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} |
341 |
|
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if (ci == BRT) |
342 |
|
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return(bright(input[fn].scan[MIDSCN+yoff][xpos+xoff])); |
343 |
|
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return(colval(input[fn].scan[MIDSCN+yoff][xpos+xoff],ci)); |
344 |
greg |
1.1 |
} |
345 |
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|
346 |
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|
347 |
|
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double |
348 |
|
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l_redin() /* get red color */ |
349 |
|
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{ |
350 |
greg |
1.14 |
return(colin(RED)); |
351 |
greg |
1.1 |
} |
352 |
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|
353 |
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|
354 |
|
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double |
355 |
|
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l_grnin() /* get green color */ |
356 |
|
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{ |
357 |
greg |
1.14 |
return(colin(GRN)); |
358 |
greg |
1.1 |
} |
359 |
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|
360 |
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|
361 |
|
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double |
362 |
|
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l_bluin() /* get blue color */ |
363 |
|
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{ |
364 |
greg |
1.14 |
return(colin(BLU)); |
365 |
greg |
1.8 |
} |
366 |
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|
367 |
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|
368 |
|
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double |
369 |
|
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l_brtin() /* get brightness value */ |
370 |
|
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{ |
371 |
greg |
1.14 |
return(colin(BRT)); |
372 |
greg |
1.1 |
} |
373 |
|
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|
374 |
|
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|
375 |
|
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wputs(msg) |
376 |
|
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char *msg; |
377 |
|
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{ |
378 |
|
|
if (!nowarn) |
379 |
|
|
eputs(msg); |
380 |
|
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} |
381 |
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|
382 |
|
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|
383 |
|
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eputs(msg) |
384 |
|
|
char *msg; |
385 |
|
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{ |
386 |
|
|
fputs(msg, stderr); |
387 |
|
|
} |
388 |
|
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|
389 |
|
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|
390 |
|
|
quit(code) |
391 |
|
|
int code; |
392 |
|
|
{ |
393 |
|
|
exit(code); |
394 |
|
|
} |