1 |
greg |
1.1 |
/* Copyright (c) 1986 Regents of the University of California */ |
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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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* pfilt.c - program to post-process picture file. |
9 |
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* |
10 |
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* 9/26/85 |
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 <signal.h> |
16 |
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17 |
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#include "color.h" |
18 |
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19 |
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extern char *malloc(); |
20 |
greg |
1.13 |
extern float *matchlamp(); |
21 |
greg |
1.1 |
|
22 |
greg |
1.15 |
#define FEQ(a,b) ((a) >= .98*(b) && (a) <= 1.02*(b)) |
23 |
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24 |
greg |
1.1 |
#define CHECKRAD 1.5 /* radius to check for filtering */ |
25 |
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26 |
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COLOR exposure = WHTCOLOR; /* exposure for the frame */ |
27 |
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28 |
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double rad = 0.0; /* output pixel radius for filtering */ |
29 |
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30 |
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int nrows = 0; /* number of rows for output */ |
31 |
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int ncols = 0; /* number of columns for output */ |
32 |
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33 |
greg |
1.4 |
double x_c = 1.0; /* ratio of output x size to input */ |
34 |
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double y_r = 1.0; /* ratio of output y size to input */ |
35 |
greg |
1.2 |
|
36 |
greg |
1.1 |
int singlepass = 0; /* true means skip first pass */ |
37 |
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38 |
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int avghot = 0; /* true means average in bright spots */ |
39 |
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40 |
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double hotlvl = 1000.0; /* level considered "hot" */ |
41 |
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42 |
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int npts = 0; /* (half) number of points for stars */ |
43 |
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44 |
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double spread = 1e-4; /* spread for star points */ |
45 |
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46 |
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#define TEMPLATE "/usr/tmp/pfXXXXXX" |
47 |
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48 |
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char *tfname = NULL; |
49 |
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50 |
greg |
1.13 |
char *lampdat = "lamp.tab"; /* lamp data file */ |
51 |
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52 |
greg |
1.1 |
int xres, yres; /* resolution of input */ |
53 |
greg |
1.9 |
double inpaspect = 1.0; /* pixel aspect ratio of input */ |
54 |
greg |
1.12 |
int correctaspect = 0; /* aspect ratio correction? */ |
55 |
greg |
1.1 |
|
56 |
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int xrad; /* x window size */ |
57 |
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int yrad; /* y window size */ |
58 |
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59 |
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int barsize; /* size of input scan bar */ |
60 |
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COLOR **scanin; /* input scan bar */ |
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COLOR *scanout; /* output scan line */ |
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63 |
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char *progname; |
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65 |
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66 |
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main(argc, argv) |
67 |
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int argc; |
68 |
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char **argv; |
69 |
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{ |
70 |
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extern char *mktemp(); |
71 |
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extern double atof(), pow(); |
72 |
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extern long ftell(); |
73 |
greg |
1.9 |
extern int quit(), headline(); |
74 |
greg |
1.1 |
FILE *fin; |
75 |
greg |
1.13 |
float *lampcolor; |
76 |
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char *lamptype = NULL; |
77 |
greg |
1.1 |
long fpos; |
78 |
greg |
1.9 |
double outaspect = 0.0; |
79 |
greg |
1.1 |
double d; |
80 |
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int i; |
81 |
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82 |
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if (signal(SIGINT, quit) == SIG_IGN) |
83 |
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signal(SIGINT, SIG_IGN); |
84 |
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if (signal(SIGHUP, quit) == SIG_IGN) |
85 |
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signal(SIGINT, SIG_IGN); |
86 |
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signal(SIGTERM, quit); |
87 |
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signal(SIGPIPE, quit); |
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#ifdef SIGXCPU |
89 |
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signal(SIGXCPU, quit); |
90 |
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signal(SIGXFSZ, quit); |
91 |
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#endif |
92 |
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93 |
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progname = argv[0]; |
94 |
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95 |
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for (i = 1; i < argc; i++) |
96 |
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if (argv[i][0] == '-') |
97 |
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switch (argv[i][1]) { |
98 |
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case 'x': |
99 |
greg |
1.3 |
i++; |
100 |
greg |
1.5 |
if (argv[i][0] == '/') { |
101 |
greg |
1.4 |
x_c = 1.0/atof(argv[i]+1); |
102 |
greg |
1.5 |
ncols = 0; |
103 |
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} else |
104 |
greg |
1.3 |
ncols = atoi(argv[i]); |
105 |
greg |
1.1 |
break; |
106 |
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case 'y': |
107 |
greg |
1.3 |
i++; |
108 |
greg |
1.5 |
if (argv[i][0] == '/') { |
109 |
greg |
1.4 |
y_r = 1.0/atof(argv[i]+1); |
110 |
greg |
1.5 |
nrows = 0; |
111 |
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} else |
112 |
greg |
1.3 |
nrows = atoi(argv[i]); |
113 |
greg |
1.1 |
break; |
114 |
greg |
1.12 |
case 'c': |
115 |
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correctaspect = !correctaspect; |
116 |
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break; |
117 |
greg |
1.9 |
case 'p': |
118 |
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i++; |
119 |
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outaspect = atof(argv[i]); |
120 |
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break; |
121 |
greg |
1.1 |
case 'e': |
122 |
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if (argv[i+1][0] == '+' || argv[i+1][0] == '-') |
123 |
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d = pow(2.0, atof(argv[i+1])); |
124 |
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else |
125 |
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d = atof(argv[i+1]); |
126 |
greg |
1.15 |
if (d < 1e-20 || d > 1e20) { |
127 |
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fprintf(stderr, |
128 |
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"%s: exposure out of range\n", |
129 |
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argv[0]); |
130 |
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exit(1); |
131 |
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} |
132 |
greg |
1.1 |
switch (argv[i][2]) { |
133 |
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case '\0': |
134 |
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scalecolor(exposure, d); |
135 |
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break; |
136 |
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case 'r': |
137 |
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colval(exposure,RED) *= d; |
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break; |
139 |
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case 'g': |
140 |
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colval(exposure,GRN) *= d; |
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break; |
142 |
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case 'b': |
143 |
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colval(exposure,BLU) *= d; |
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break; |
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default: |
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goto badopt; |
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} |
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i++; |
149 |
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break; |
150 |
greg |
1.13 |
case 'f': |
151 |
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lampdat = argv[++i]; |
152 |
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break; |
153 |
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case 't': |
154 |
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lamptype = argv[++i]; |
155 |
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break; |
156 |
greg |
1.1 |
case '1': |
157 |
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singlepass = 1; |
158 |
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break; |
159 |
greg |
1.6 |
case '2': |
160 |
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singlepass = 0; |
161 |
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break; |
162 |
greg |
1.9 |
case 'n': |
163 |
greg |
1.1 |
npts = atoi(argv[++i]) / 2; |
164 |
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break; |
165 |
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case 's': |
166 |
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spread = atof(argv[++i]); |
167 |
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break; |
168 |
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case 'a': |
169 |
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avghot = !avghot; |
170 |
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break; |
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case 'h': |
172 |
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hotlvl = atof(argv[++i]); |
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break; |
174 |
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case 'r': |
175 |
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rad = atof(argv[++i]); |
176 |
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break; |
177 |
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case 'b': |
178 |
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rad = 0.0; |
179 |
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break; |
180 |
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default:; |
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badopt: |
182 |
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fprintf(stderr, "%s: unknown option: %s\n", |
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progname, argv[i]); |
184 |
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quit(1); |
185 |
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break; |
186 |
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} |
187 |
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else |
188 |
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break; |
189 |
greg |
1.14 |
/* get lamp data (if necessary) */ |
190 |
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if (lamptype != NULL) { |
191 |
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if (loadlamps(lampdat) < 0) |
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quit(1); |
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if ((lampcolor = matchlamp(lamptype)) == NULL) { |
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fprintf(stderr, "%s: unknown lamp type\n", lamptype); |
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quit(1); |
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} |
197 |
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colval(exposure,RED) /= lampcolor[0]; |
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colval(exposure,GRN) /= lampcolor[1]; |
199 |
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colval(exposure,BLU) /= lampcolor[2]; |
200 |
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freelamps(); |
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} |
202 |
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/* open input file */ |
203 |
greg |
1.1 |
if (i == argc) { |
204 |
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if (singlepass) |
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fin = stdin; |
206 |
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else { |
207 |
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tfname = mktemp(TEMPLATE); |
208 |
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if ((fin = fopen(tfname, "w+")) == NULL) { |
209 |
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fprintf(stderr, "%s: can't create ", progname); |
210 |
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fprintf(stderr, "temp file \"%s\"\n", tfname); |
211 |
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quit(1); |
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} |
213 |
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copyfile(stdin, fin); |
214 |
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if (fseek(fin, 0L, 0) == -1) { |
215 |
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fprintf(stderr, "%s: seek fail\n", progname); |
216 |
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quit(1); |
217 |
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} |
218 |
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} |
219 |
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} else if (i == argc-1) { |
220 |
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if ((fin = fopen(argv[i], "r")) == NULL) { |
221 |
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fprintf(stderr, "%s: can't open file \"%s\"\n", |
222 |
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progname, argv[i]); |
223 |
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quit(1); |
224 |
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} |
225 |
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} else { |
226 |
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fprintf(stderr, "%s: bad # file arguments\n", progname); |
227 |
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quit(1); |
228 |
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} |
229 |
greg |
1.9 |
/* get header */ |
230 |
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getheader(fin, headline); |
231 |
greg |
1.1 |
/* add new header info. */ |
232 |
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printargs(i, argv, stdout); |
233 |
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/* get picture size */ |
234 |
greg |
1.7 |
if (fgetresolu(&xres, &yres, fin) != (YMAJOR|YDECR)) { |
235 |
greg |
1.1 |
fprintf(stderr, "%s: bad picture size\n", progname); |
236 |
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quit(1); |
237 |
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} |
238 |
greg |
1.9 |
/* compute output resolution */ |
239 |
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if (ncols <= 0) |
240 |
greg |
1.4 |
ncols = x_c*xres + .5; |
241 |
greg |
1.9 |
if (nrows <= 0) |
242 |
greg |
1.4 |
nrows = y_r*yres + .5; |
243 |
greg |
1.9 |
if (outaspect > .01) { |
244 |
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d = inpaspect * yres/xres / outaspect; |
245 |
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if (d * ncols > nrows) |
246 |
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ncols = nrows / d; |
247 |
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else |
248 |
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nrows = ncols * d; |
249 |
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} |
250 |
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x_c = (double)ncols/xres; |
251 |
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y_r = (double)nrows/yres; |
252 |
greg |
1.1 |
|
253 |
greg |
1.9 |
if (singlepass) { /* skip exposure, etc. */ |
254 |
greg |
1.1 |
pass1default(); |
255 |
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pass2(fin); |
256 |
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quit(0); |
257 |
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} |
258 |
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259 |
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fpos = ftell(fin); /* save input file position */ |
260 |
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261 |
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pass1(fin); |
262 |
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263 |
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if (fseek(fin, fpos, 0) == -1) { |
264 |
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fprintf(stderr, "%s: seek fail\n", progname); |
265 |
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quit(1); |
266 |
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} |
267 |
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pass2(fin); |
268 |
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269 |
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quit(0); |
270 |
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} |
271 |
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272 |
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273 |
greg |
1.9 |
headline(s) /* process line from header */ |
274 |
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char *s; |
275 |
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{ |
276 |
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fputs(s, stdout); /* copy to output */ |
277 |
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if (isaspect(s)) /* get aspect ratio */ |
278 |
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inpaspect *= aspectval(s); |
279 |
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} |
280 |
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281 |
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282 |
greg |
1.1 |
copyfile(in, out) /* copy a file */ |
283 |
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register FILE *in, *out; |
284 |
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{ |
285 |
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register int c; |
286 |
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287 |
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while ((c = getc(in)) != EOF) |
288 |
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putc(c, out); |
289 |
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290 |
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if (ferror(out)) { |
291 |
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fprintf(stderr, "%s: write error in copyfile\n", progname); |
292 |
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quit(1); |
293 |
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} |
294 |
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} |
295 |
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296 |
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297 |
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pass1(in) /* first pass of picture file */ |
298 |
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FILE *in; |
299 |
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{ |
300 |
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int i; |
301 |
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COLOR *scan; |
302 |
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303 |
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pass1init(); |
304 |
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305 |
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scan = (COLOR *)malloc(xres*sizeof(COLOR)); |
306 |
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if (scan == NULL) { |
307 |
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fprintf(stderr, "%s: out of memory\n", progname); |
308 |
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quit(1); |
309 |
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} |
310 |
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for (i = 0; i < yres; i++) { |
311 |
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if (freadscan(scan, xres, in) < 0) { |
312 |
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nrows = nrows * i / yres; /* adjust frame */ |
313 |
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if (nrows <= 0) { |
314 |
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fprintf(stderr, "%s: empty frame\n", progname); |
315 |
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quit(1); |
316 |
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} |
317 |
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fprintf(stderr, "%s: warning - partial frame (%d%%)\n", |
318 |
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progname, 100*i/yres); |
319 |
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yres = i; |
320 |
greg |
1.11 |
y_r = (double)nrows/yres; |
321 |
greg |
1.1 |
break; |
322 |
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} |
323 |
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pass1scan(scan, i); |
324 |
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} |
325 |
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free((char *)scan); |
326 |
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} |
327 |
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328 |
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329 |
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pass2(in) /* last pass on file, write to stdout */ |
330 |
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FILE *in; |
331 |
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{ |
332 |
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int yread; |
333 |
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int ycent, xcent; |
334 |
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int r, c; |
335 |
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336 |
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pass2init(); |
337 |
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scan2init(); |
338 |
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yread = 0; |
339 |
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for (r = 0; r < nrows; r++) { |
340 |
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ycent = (long)r*yres/nrows; |
341 |
|
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while (yread <= ycent+yrad) { |
342 |
|
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if (yread < yres) { |
343 |
|
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if (freadscan(scanin[yread%barsize], |
344 |
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xres, in) < 0) { |
345 |
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fprintf(stderr, |
346 |
|
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"%s: bad read (y=%d)\n", |
347 |
|
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progname, yres-1-yread); |
348 |
|
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quit(1); |
349 |
|
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} |
350 |
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pass2scan(scanin[yread%barsize], yread); |
351 |
|
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} |
352 |
|
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yread++; |
353 |
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} |
354 |
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for (c = 0; c < ncols; c++) { |
355 |
|
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xcent = (long)c*xres/ncols; |
356 |
|
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if (rad <= 0.0) |
357 |
|
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dobox(scanout[c], xcent, ycent, c, r); |
358 |
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else |
359 |
|
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dogauss(scanout[c], xcent, ycent, c, r); |
360 |
|
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} |
361 |
|
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if (fwritescan(scanout, ncols, stdout) < 0) { |
362 |
|
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fprintf(stderr, "%s: write error in pass2\n", progname); |
363 |
|
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quit(1); |
364 |
|
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} |
365 |
|
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} |
366 |
greg |
1.10 |
/* skip leftovers */ |
367 |
|
|
while (yread < yres) { |
368 |
|
|
if (freadscan(scanin[0], xres, in) < 0) |
369 |
|
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break; |
370 |
|
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yread++; |
371 |
|
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} |
372 |
greg |
1.1 |
} |
373 |
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|
374 |
|
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|
375 |
|
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scan2init() /* prepare scanline arrays */ |
376 |
|
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{ |
377 |
greg |
1.15 |
COLOR ctmp; |
378 |
greg |
1.9 |
double d; |
379 |
greg |
1.1 |
register int i; |
380 |
|
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|
381 |
|
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if (rad <= 0.0) { |
382 |
|
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xrad = xres/ncols/2 + 1; |
383 |
|
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yrad = yres/nrows/2 + 1; |
384 |
|
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} else { |
385 |
|
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if (nrows >= yres && ncols >= xres) |
386 |
|
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rad *= (y_r + x_c)/2.0; |
387 |
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|
388 |
|
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xrad = CHECKRAD*rad/x_c + 1; |
389 |
|
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yrad = CHECKRAD*rad/y_r + 1; |
390 |
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|
391 |
|
|
initmask(); /* initialize filter table */ |
392 |
|
|
} |
393 |
|
|
barsize = 2 * yrad; |
394 |
|
|
scanin = (COLOR **)malloc(barsize*sizeof(COLOR *)); |
395 |
|
|
for (i = 0; i < barsize; i++) { |
396 |
|
|
scanin[i] = (COLOR *)malloc(xres*sizeof(COLOR)); |
397 |
|
|
if (scanin[i] == NULL) { |
398 |
|
|
fprintf(stderr, "%s: out of memory\n", progname); |
399 |
|
|
quit(1); |
400 |
|
|
} |
401 |
|
|
} |
402 |
|
|
scanout = (COLOR *)malloc(ncols*sizeof(COLOR)); |
403 |
|
|
if (scanout == NULL) { |
404 |
|
|
fprintf(stderr, "%s: out of memory\n", progname); |
405 |
|
|
quit(1); |
406 |
|
|
} |
407 |
greg |
1.15 |
/* record pixel aspect ratio */ |
408 |
greg |
1.12 |
if (!correctaspect) { |
409 |
|
|
d = x_c / y_r; |
410 |
greg |
1.15 |
if (!FEQ(d,1.0)) |
411 |
greg |
1.12 |
fputaspect(d, stdout); |
412 |
|
|
} |
413 |
greg |
1.15 |
/* record exposure */ |
414 |
greg |
1.9 |
d = bright(exposure); |
415 |
greg |
1.15 |
if (!FEQ(d,1.0)) |
416 |
greg |
1.9 |
fputexpos(d, stdout); |
417 |
greg |
1.15 |
/* record color correction */ |
418 |
|
|
copycolor(ctmp, exposure); |
419 |
|
|
scalecolor(ctmp, 1.0/d); |
420 |
|
|
if (!FEQ(colval(ctmp,RED),colval(ctmp,GRN)) || |
421 |
|
|
!FEQ(colval(ctmp,GRN),colval(ctmp,BLU))) |
422 |
|
|
fputcolcor(ctmp, stdout); |
423 |
greg |
1.1 |
printf("\n"); |
424 |
greg |
1.15 |
/* write out resolution */ |
425 |
|
|
fputresolu(YMAJOR|YDECR, ncols, nrows, stdout); |
426 |
greg |
1.1 |
} |
427 |
|
|
|
428 |
|
|
|
429 |
|
|
quit(code) /* remove temporary file and exit */ |
430 |
|
|
int code; |
431 |
|
|
{ |
432 |
|
|
if (tfname != NULL) |
433 |
|
|
unlink(tfname); |
434 |
|
|
exit(code); |
435 |
|
|
} |