1 |
greg |
1.18 |
/* Copyright (c) 1991 Regents of the University of California */ |
2 |
greg |
1.1 |
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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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* 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 |
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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 |
greg |
1.16 |
int wrongformat = 0; |
57 |
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58 |
greg |
1.1 |
int xrad; /* x window size */ |
59 |
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int yrad; /* y window size */ |
60 |
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61 |
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int barsize; /* size of input scan bar */ |
62 |
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COLOR **scanin; /* input scan bar */ |
63 |
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COLOR *scanout; /* output scan line */ |
64 |
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65 |
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char *progname; |
66 |
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67 |
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68 |
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main(argc, argv) |
69 |
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int argc; |
70 |
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char **argv; |
71 |
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{ |
72 |
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extern char *mktemp(); |
73 |
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extern double atof(), pow(); |
74 |
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extern long ftell(); |
75 |
greg |
1.9 |
extern int quit(), headline(); |
76 |
greg |
1.1 |
FILE *fin; |
77 |
greg |
1.13 |
float *lampcolor; |
78 |
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char *lamptype = NULL; |
79 |
greg |
1.1 |
long fpos; |
80 |
greg |
1.9 |
double outaspect = 0.0; |
81 |
greg |
1.1 |
double d; |
82 |
greg |
1.18 |
int i, j; |
83 |
greg |
1.1 |
|
84 |
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if (signal(SIGINT, quit) == SIG_IGN) |
85 |
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signal(SIGINT, SIG_IGN); |
86 |
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if (signal(SIGHUP, quit) == SIG_IGN) |
87 |
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signal(SIGINT, SIG_IGN); |
88 |
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signal(SIGTERM, quit); |
89 |
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signal(SIGPIPE, quit); |
90 |
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#ifdef SIGXCPU |
91 |
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signal(SIGXCPU, quit); |
92 |
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signal(SIGXFSZ, quit); |
93 |
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#endif |
94 |
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95 |
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progname = argv[0]; |
96 |
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97 |
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for (i = 1; i < argc; i++) |
98 |
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if (argv[i][0] == '-') |
99 |
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switch (argv[i][1]) { |
100 |
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case 'x': |
101 |
greg |
1.3 |
i++; |
102 |
greg |
1.5 |
if (argv[i][0] == '/') { |
103 |
greg |
1.4 |
x_c = 1.0/atof(argv[i]+1); |
104 |
greg |
1.5 |
ncols = 0; |
105 |
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} else |
106 |
greg |
1.3 |
ncols = atoi(argv[i]); |
107 |
greg |
1.1 |
break; |
108 |
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case 'y': |
109 |
greg |
1.3 |
i++; |
110 |
greg |
1.5 |
if (argv[i][0] == '/') { |
111 |
greg |
1.4 |
y_r = 1.0/atof(argv[i]+1); |
112 |
greg |
1.5 |
nrows = 0; |
113 |
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} else |
114 |
greg |
1.3 |
nrows = atoi(argv[i]); |
115 |
greg |
1.1 |
break; |
116 |
greg |
1.12 |
case 'c': |
117 |
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correctaspect = !correctaspect; |
118 |
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break; |
119 |
greg |
1.9 |
case 'p': |
120 |
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i++; |
121 |
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outaspect = atof(argv[i]); |
122 |
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break; |
123 |
greg |
1.1 |
case 'e': |
124 |
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if (argv[i+1][0] == '+' || argv[i+1][0] == '-') |
125 |
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d = pow(2.0, atof(argv[i+1])); |
126 |
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else |
127 |
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d = atof(argv[i+1]); |
128 |
greg |
1.15 |
if (d < 1e-20 || d > 1e20) { |
129 |
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fprintf(stderr, |
130 |
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"%s: exposure out of range\n", |
131 |
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argv[0]); |
132 |
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exit(1); |
133 |
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} |
134 |
greg |
1.1 |
switch (argv[i][2]) { |
135 |
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case '\0': |
136 |
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scalecolor(exposure, d); |
137 |
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break; |
138 |
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case 'r': |
139 |
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colval(exposure,RED) *= d; |
140 |
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break; |
141 |
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case 'g': |
142 |
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colval(exposure,GRN) *= d; |
143 |
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break; |
144 |
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case 'b': |
145 |
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colval(exposure,BLU) *= d; |
146 |
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break; |
147 |
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default: |
148 |
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goto badopt; |
149 |
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} |
150 |
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i++; |
151 |
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break; |
152 |
greg |
1.13 |
case 'f': |
153 |
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lampdat = argv[++i]; |
154 |
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break; |
155 |
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case 't': |
156 |
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lamptype = argv[++i]; |
157 |
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break; |
158 |
greg |
1.1 |
case '1': |
159 |
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singlepass = 1; |
160 |
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break; |
161 |
greg |
1.6 |
case '2': |
162 |
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singlepass = 0; |
163 |
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break; |
164 |
greg |
1.9 |
case 'n': |
165 |
greg |
1.1 |
npts = atoi(argv[++i]) / 2; |
166 |
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break; |
167 |
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case 's': |
168 |
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spread = atof(argv[++i]); |
169 |
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break; |
170 |
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case 'a': |
171 |
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avghot = !avghot; |
172 |
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break; |
173 |
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case 'h': |
174 |
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hotlvl = atof(argv[++i]); |
175 |
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break; |
176 |
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case 'r': |
177 |
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rad = atof(argv[++i]); |
178 |
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break; |
179 |
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case 'b': |
180 |
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rad = 0.0; |
181 |
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break; |
182 |
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default:; |
183 |
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badopt: |
184 |
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fprintf(stderr, "%s: unknown option: %s\n", |
185 |
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progname, argv[i]); |
186 |
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quit(1); |
187 |
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break; |
188 |
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} |
189 |
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else |
190 |
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break; |
191 |
greg |
1.14 |
/* get lamp data (if necessary) */ |
192 |
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if (lamptype != NULL) { |
193 |
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if (loadlamps(lampdat) < 0) |
194 |
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quit(1); |
195 |
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if ((lampcolor = matchlamp(lamptype)) == NULL) { |
196 |
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fprintf(stderr, "%s: unknown lamp type\n", lamptype); |
197 |
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quit(1); |
198 |
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} |
199 |
greg |
1.18 |
for (i = 0; i < 3; i++) |
200 |
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if (lampcolor[i] > 1e-4) |
201 |
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colval(exposure,i) /= lampcolor[i]; |
202 |
greg |
1.14 |
freelamps(); |
203 |
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} |
204 |
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/* open input file */ |
205 |
greg |
1.1 |
if (i == argc) { |
206 |
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if (singlepass) |
207 |
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fin = stdin; |
208 |
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else { |
209 |
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tfname = mktemp(TEMPLATE); |
210 |
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if ((fin = fopen(tfname, "w+")) == NULL) { |
211 |
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fprintf(stderr, "%s: can't create ", progname); |
212 |
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fprintf(stderr, "temp file \"%s\"\n", tfname); |
213 |
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quit(1); |
214 |
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} |
215 |
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copyfile(stdin, fin); |
216 |
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if (fseek(fin, 0L, 0) == -1) { |
217 |
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fprintf(stderr, "%s: seek fail\n", progname); |
218 |
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quit(1); |
219 |
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} |
220 |
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} |
221 |
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} else if (i == argc-1) { |
222 |
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if ((fin = fopen(argv[i], "r")) == NULL) { |
223 |
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fprintf(stderr, "%s: can't open file \"%s\"\n", |
224 |
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progname, argv[i]); |
225 |
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quit(1); |
226 |
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} |
227 |
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} else { |
228 |
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fprintf(stderr, "%s: bad # file arguments\n", progname); |
229 |
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quit(1); |
230 |
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} |
231 |
greg |
1.9 |
/* get header */ |
232 |
greg |
1.16 |
getheader(fin, headline, NULL); |
233 |
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if (wrongformat) { |
234 |
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fprintf(stderr, "%s: input must be a Radiance picture\n", |
235 |
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progname); |
236 |
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quit(1); |
237 |
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} |
238 |
greg |
1.1 |
/* add new header info. */ |
239 |
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printargs(i, argv, stdout); |
240 |
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/* get picture size */ |
241 |
greg |
1.7 |
if (fgetresolu(&xres, &yres, fin) != (YMAJOR|YDECR)) { |
242 |
greg |
1.1 |
fprintf(stderr, "%s: bad picture size\n", progname); |
243 |
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quit(1); |
244 |
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} |
245 |
greg |
1.9 |
/* compute output resolution */ |
246 |
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if (ncols <= 0) |
247 |
greg |
1.4 |
ncols = x_c*xres + .5; |
248 |
greg |
1.9 |
if (nrows <= 0) |
249 |
greg |
1.4 |
nrows = y_r*yres + .5; |
250 |
greg |
1.9 |
if (outaspect > .01) { |
251 |
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d = inpaspect * yres/xres / outaspect; |
252 |
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if (d * ncols > nrows) |
253 |
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ncols = nrows / d; |
254 |
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else |
255 |
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nrows = ncols * d; |
256 |
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} |
257 |
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x_c = (double)ncols/xres; |
258 |
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y_r = (double)nrows/yres; |
259 |
greg |
1.1 |
|
260 |
greg |
1.9 |
if (singlepass) { /* skip exposure, etc. */ |
261 |
greg |
1.1 |
pass1default(); |
262 |
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pass2(fin); |
263 |
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quit(0); |
264 |
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} |
265 |
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266 |
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fpos = ftell(fin); /* save input file position */ |
267 |
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268 |
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pass1(fin); |
269 |
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270 |
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if (fseek(fin, fpos, 0) == -1) { |
271 |
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fprintf(stderr, "%s: seek fail\n", progname); |
272 |
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quit(1); |
273 |
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} |
274 |
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pass2(fin); |
275 |
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276 |
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quit(0); |
277 |
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} |
278 |
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279 |
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280 |
greg |
1.9 |
headline(s) /* process line from header */ |
281 |
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char *s; |
282 |
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{ |
283 |
greg |
1.16 |
char fmt[32]; |
284 |
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|
285 |
greg |
1.9 |
fputs(s, stdout); /* copy to output */ |
286 |
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if (isaspect(s)) /* get aspect ratio */ |
287 |
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inpaspect *= aspectval(s); |
288 |
greg |
1.16 |
else if (isformat(s)) { |
289 |
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formatval(fmt, s); |
290 |
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wrongformat = strcmp(fmt, COLRFMT); |
291 |
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} |
292 |
greg |
1.9 |
} |
293 |
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294 |
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295 |
greg |
1.1 |
copyfile(in, out) /* copy a file */ |
296 |
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register FILE *in, *out; |
297 |
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{ |
298 |
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register int c; |
299 |
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300 |
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while ((c = getc(in)) != EOF) |
301 |
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putc(c, out); |
302 |
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303 |
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if (ferror(out)) { |
304 |
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fprintf(stderr, "%s: write error in copyfile\n", progname); |
305 |
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quit(1); |
306 |
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} |
307 |
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} |
308 |
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309 |
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310 |
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pass1(in) /* first pass of picture file */ |
311 |
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FILE *in; |
312 |
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{ |
313 |
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int i; |
314 |
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COLOR *scan; |
315 |
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316 |
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pass1init(); |
317 |
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318 |
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scan = (COLOR *)malloc(xres*sizeof(COLOR)); |
319 |
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if (scan == NULL) { |
320 |
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fprintf(stderr, "%s: out of memory\n", progname); |
321 |
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quit(1); |
322 |
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} |
323 |
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for (i = 0; i < yres; i++) { |
324 |
|
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if (freadscan(scan, xres, in) < 0) { |
325 |
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nrows = nrows * i / yres; /* adjust frame */ |
326 |
|
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if (nrows <= 0) { |
327 |
|
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fprintf(stderr, "%s: empty frame\n", progname); |
328 |
|
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quit(1); |
329 |
|
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} |
330 |
|
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fprintf(stderr, "%s: warning - partial frame (%d%%)\n", |
331 |
|
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progname, 100*i/yres); |
332 |
|
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yres = i; |
333 |
greg |
1.11 |
y_r = (double)nrows/yres; |
334 |
greg |
1.1 |
break; |
335 |
|
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} |
336 |
|
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pass1scan(scan, i); |
337 |
|
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} |
338 |
|
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free((char *)scan); |
339 |
|
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} |
340 |
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|
341 |
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342 |
|
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pass2(in) /* last pass on file, write to stdout */ |
343 |
|
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FILE *in; |
344 |
|
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{ |
345 |
|
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int yread; |
346 |
|
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int ycent, xcent; |
347 |
|
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int r, c; |
348 |
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|
349 |
|
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pass2init(); |
350 |
|
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scan2init(); |
351 |
|
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yread = 0; |
352 |
|
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for (r = 0; r < nrows; r++) { |
353 |
|
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ycent = (long)r*yres/nrows; |
354 |
|
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while (yread <= ycent+yrad) { |
355 |
|
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if (yread < yres) { |
356 |
|
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if (freadscan(scanin[yread%barsize], |
357 |
|
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xres, in) < 0) { |
358 |
|
|
fprintf(stderr, |
359 |
|
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"%s: bad read (y=%d)\n", |
360 |
|
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progname, yres-1-yread); |
361 |
|
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quit(1); |
362 |
|
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} |
363 |
|
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pass2scan(scanin[yread%barsize], yread); |
364 |
|
|
} |
365 |
|
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yread++; |
366 |
|
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} |
367 |
|
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for (c = 0; c < ncols; c++) { |
368 |
|
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xcent = (long)c*xres/ncols; |
369 |
|
|
if (rad <= 0.0) |
370 |
|
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dobox(scanout[c], xcent, ycent, c, r); |
371 |
|
|
else |
372 |
|
|
dogauss(scanout[c], xcent, ycent, c, r); |
373 |
|
|
} |
374 |
|
|
if (fwritescan(scanout, ncols, stdout) < 0) { |
375 |
|
|
fprintf(stderr, "%s: write error in pass2\n", progname); |
376 |
|
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quit(1); |
377 |
|
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} |
378 |
|
|
} |
379 |
greg |
1.10 |
/* skip leftovers */ |
380 |
|
|
while (yread < yres) { |
381 |
|
|
if (freadscan(scanin[0], xres, in) < 0) |
382 |
|
|
break; |
383 |
|
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yread++; |
384 |
|
|
} |
385 |
greg |
1.1 |
} |
386 |
|
|
|
387 |
|
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|
388 |
|
|
scan2init() /* prepare scanline arrays */ |
389 |
|
|
{ |
390 |
greg |
1.15 |
COLOR ctmp; |
391 |
greg |
1.9 |
double d; |
392 |
greg |
1.1 |
register int i; |
393 |
|
|
|
394 |
|
|
if (rad <= 0.0) { |
395 |
|
|
xrad = xres/ncols/2 + 1; |
396 |
|
|
yrad = yres/nrows/2 + 1; |
397 |
|
|
} else { |
398 |
|
|
if (nrows >= yres && ncols >= xres) |
399 |
|
|
rad *= (y_r + x_c)/2.0; |
400 |
|
|
|
401 |
|
|
xrad = CHECKRAD*rad/x_c + 1; |
402 |
|
|
yrad = CHECKRAD*rad/y_r + 1; |
403 |
|
|
|
404 |
|
|
initmask(); /* initialize filter table */ |
405 |
|
|
} |
406 |
greg |
1.17 |
barsize = 2*yrad + 1; |
407 |
greg |
1.1 |
scanin = (COLOR **)malloc(barsize*sizeof(COLOR *)); |
408 |
|
|
for (i = 0; i < barsize; i++) { |
409 |
|
|
scanin[i] = (COLOR *)malloc(xres*sizeof(COLOR)); |
410 |
|
|
if (scanin[i] == NULL) { |
411 |
|
|
fprintf(stderr, "%s: out of memory\n", progname); |
412 |
|
|
quit(1); |
413 |
|
|
} |
414 |
|
|
} |
415 |
|
|
scanout = (COLOR *)malloc(ncols*sizeof(COLOR)); |
416 |
|
|
if (scanout == NULL) { |
417 |
|
|
fprintf(stderr, "%s: out of memory\n", progname); |
418 |
|
|
quit(1); |
419 |
|
|
} |
420 |
greg |
1.15 |
/* record pixel aspect ratio */ |
421 |
greg |
1.12 |
if (!correctaspect) { |
422 |
|
|
d = x_c / y_r; |
423 |
greg |
1.15 |
if (!FEQ(d,1.0)) |
424 |
greg |
1.12 |
fputaspect(d, stdout); |
425 |
|
|
} |
426 |
greg |
1.15 |
/* record exposure */ |
427 |
greg |
1.9 |
d = bright(exposure); |
428 |
greg |
1.15 |
if (!FEQ(d,1.0)) |
429 |
greg |
1.9 |
fputexpos(d, stdout); |
430 |
greg |
1.15 |
/* record color correction */ |
431 |
|
|
copycolor(ctmp, exposure); |
432 |
|
|
scalecolor(ctmp, 1.0/d); |
433 |
|
|
if (!FEQ(colval(ctmp,RED),colval(ctmp,GRN)) || |
434 |
|
|
!FEQ(colval(ctmp,GRN),colval(ctmp,BLU))) |
435 |
|
|
fputcolcor(ctmp, stdout); |
436 |
greg |
1.1 |
printf("\n"); |
437 |
greg |
1.15 |
/* write out resolution */ |
438 |
|
|
fputresolu(YMAJOR|YDECR, ncols, nrows, stdout); |
439 |
greg |
1.1 |
} |
440 |
|
|
|
441 |
|
|
|
442 |
|
|
quit(code) /* remove temporary file and exit */ |
443 |
|
|
int code; |
444 |
|
|
{ |
445 |
|
|
if (tfname != NULL) |
446 |
|
|
unlink(tfname); |
447 |
|
|
exit(code); |
448 |
|
|
} |