1 |
greg |
2.4 |
/* Copyright (c) 1992 Regents of the University of California */ |
2 |
greg |
1.1 |
|
3 |
|
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#ifndef lint |
4 |
|
|
static char SCCSid[] = "$SunId$ LBL"; |
5 |
|
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#endif |
6 |
|
|
|
7 |
|
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/* |
8 |
|
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* pfilt.c - program to post-process picture file. |
9 |
|
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* |
10 |
|
|
* 9/26/85 |
11 |
greg |
2.9 |
* 6/23/93 Added additional buffers for value spreading |
12 |
greg |
1.1 |
*/ |
13 |
|
|
|
14 |
greg |
2.6 |
#include "standard.h" |
15 |
greg |
1.1 |
|
16 |
|
|
#include <signal.h> |
17 |
|
|
|
18 |
|
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#include "color.h" |
19 |
|
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|
20 |
greg |
1.19 |
#include "resolu.h" |
21 |
|
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|
22 |
greg |
2.3 |
#include "paths.h" |
23 |
|
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|
24 |
greg |
1.13 |
extern float *matchlamp(); |
25 |
greg |
1.1 |
|
26 |
greg |
2.4 |
#define FEQ(a,b) ((a) >= .98*(b) && (a) <= 1.02*(b)) |
27 |
greg |
1.15 |
|
28 |
greg |
2.9 |
double CHECKRAD = 1.5; /* radius to check for filtering */ |
29 |
greg |
1.1 |
|
30 |
greg |
2.9 |
#define THRESHRAD 5.0 /* maximum sample spread in output */ |
31 |
|
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|
32 |
greg |
1.1 |
COLOR exposure = WHTCOLOR; /* exposure for the frame */ |
33 |
|
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|
34 |
greg |
2.4 |
double rad = 0.0; /* output pixel radius for filtering */ |
35 |
greg |
1.1 |
|
36 |
greg |
2.9 |
double thresh = 0.0; /* maximum contribution for subpixel */ |
37 |
|
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|
38 |
greg |
1.1 |
int nrows = 0; /* number of rows for output */ |
39 |
|
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int ncols = 0; /* number of columns for output */ |
40 |
|
|
|
41 |
greg |
2.4 |
double x_c = 1.0; /* ratio of output x size to input */ |
42 |
|
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double y_r = 1.0; /* ratio of output y size to input */ |
43 |
greg |
1.2 |
|
44 |
greg |
1.1 |
int singlepass = 0; /* true means skip first pass */ |
45 |
|
|
|
46 |
|
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int avghot = 0; /* true means average in bright spots */ |
47 |
|
|
|
48 |
greg |
2.8 |
double hotlvl = 100.0; /* level considered "hot" */ |
49 |
greg |
1.1 |
|
50 |
|
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int npts = 0; /* (half) number of points for stars */ |
51 |
|
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|
52 |
greg |
2.4 |
double spread = 1e-4; /* spread for star points */ |
53 |
greg |
1.1 |
|
54 |
|
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char *tfname = NULL; |
55 |
|
|
|
56 |
greg |
1.13 |
char *lampdat = "lamp.tab"; /* lamp data file */ |
57 |
|
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|
58 |
greg |
1.19 |
int order; /* scanline ordering of input */ |
59 |
greg |
1.1 |
int xres, yres; /* resolution of input */ |
60 |
greg |
2.4 |
double inpaspect = 1.0; /* pixel aspect ratio of input */ |
61 |
greg |
1.12 |
int correctaspect = 0; /* aspect ratio correction? */ |
62 |
greg |
1.1 |
|
63 |
greg |
1.16 |
int wrongformat = 0; |
64 |
|
|
|
65 |
greg |
2.9 |
int xrad; /* x search radius */ |
66 |
|
|
int yrad; /* y search radius */ |
67 |
|
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int xbrad; /* x box size */ |
68 |
|
|
int ybrad; /* y box size */ |
69 |
greg |
1.1 |
|
70 |
|
|
int barsize; /* size of input scan bar */ |
71 |
|
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COLOR **scanin; /* input scan bar */ |
72 |
|
|
COLOR *scanout; /* output scan line */ |
73 |
greg |
2.9 |
COLOR **scoutbar; /* output scan bar (if thresh > 0) */ |
74 |
|
|
float **greybar; /* grey-averaged input values */ |
75 |
|
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int obarsize = 0; /* size of output scan bar */ |
76 |
|
|
int orad = 0; /* output window radius */ |
77 |
greg |
1.1 |
|
78 |
|
|
char *progname; |
79 |
|
|
|
80 |
|
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|
81 |
|
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main(argc, argv) |
82 |
|
|
int argc; |
83 |
|
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char **argv; |
84 |
|
|
{ |
85 |
|
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extern long ftell(); |
86 |
greg |
1.9 |
extern int quit(), headline(); |
87 |
greg |
1.1 |
FILE *fin; |
88 |
greg |
1.13 |
float *lampcolor; |
89 |
|
|
char *lamptype = NULL; |
90 |
greg |
1.1 |
long fpos; |
91 |
greg |
2.4 |
double outaspect = 0.0; |
92 |
|
|
double d; |
93 |
greg |
1.18 |
int i, j; |
94 |
greg |
2.4 |
#ifdef MSDOS |
95 |
|
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extern int _fmode; |
96 |
|
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_fmode = O_BINARY; |
97 |
|
|
setmode(fileno(stdin), O_BINARY); |
98 |
|
|
setmode(fileno(stdout), O_BINARY); |
99 |
|
|
#endif |
100 |
greg |
1.1 |
if (signal(SIGINT, quit) == SIG_IGN) |
101 |
|
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signal(SIGINT, SIG_IGN); |
102 |
|
|
if (signal(SIGHUP, quit) == SIG_IGN) |
103 |
|
|
signal(SIGINT, SIG_IGN); |
104 |
|
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signal(SIGTERM, quit); |
105 |
|
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signal(SIGPIPE, quit); |
106 |
greg |
2.4 |
#ifdef SIGXCPU |
107 |
greg |
1.1 |
signal(SIGXCPU, quit); |
108 |
|
|
signal(SIGXFSZ, quit); |
109 |
|
|
#endif |
110 |
|
|
|
111 |
greg |
2.6 |
progname = argv[0] = fixargv0(argv[0]); |
112 |
greg |
1.1 |
|
113 |
|
|
for (i = 1; i < argc; i++) |
114 |
|
|
if (argv[i][0] == '-') |
115 |
|
|
switch (argv[i][1]) { |
116 |
|
|
case 'x': |
117 |
greg |
1.3 |
i++; |
118 |
greg |
1.5 |
if (argv[i][0] == '/') { |
119 |
greg |
1.4 |
x_c = 1.0/atof(argv[i]+1); |
120 |
greg |
1.5 |
ncols = 0; |
121 |
|
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} else |
122 |
greg |
1.3 |
ncols = atoi(argv[i]); |
123 |
greg |
1.1 |
break; |
124 |
|
|
case 'y': |
125 |
greg |
1.3 |
i++; |
126 |
greg |
1.5 |
if (argv[i][0] == '/') { |
127 |
greg |
1.4 |
y_r = 1.0/atof(argv[i]+1); |
128 |
greg |
1.5 |
nrows = 0; |
129 |
|
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} else |
130 |
greg |
1.3 |
nrows = atoi(argv[i]); |
131 |
greg |
1.1 |
break; |
132 |
greg |
1.12 |
case 'c': |
133 |
|
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correctaspect = !correctaspect; |
134 |
|
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break; |
135 |
greg |
1.9 |
case 'p': |
136 |
|
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i++; |
137 |
|
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outaspect = atof(argv[i]); |
138 |
|
|
break; |
139 |
greg |
1.1 |
case 'e': |
140 |
|
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if (argv[i+1][0] == '+' || argv[i+1][0] == '-') |
141 |
|
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d = pow(2.0, atof(argv[i+1])); |
142 |
|
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else |
143 |
|
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d = atof(argv[i+1]); |
144 |
greg |
1.15 |
if (d < 1e-20 || d > 1e20) { |
145 |
|
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fprintf(stderr, |
146 |
|
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"%s: exposure out of range\n", |
147 |
|
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argv[0]); |
148 |
|
|
exit(1); |
149 |
|
|
} |
150 |
greg |
1.1 |
switch (argv[i][2]) { |
151 |
|
|
case '\0': |
152 |
|
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scalecolor(exposure, d); |
153 |
|
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break; |
154 |
|
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case 'r': |
155 |
|
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colval(exposure,RED) *= d; |
156 |
|
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break; |
157 |
|
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case 'g': |
158 |
|
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colval(exposure,GRN) *= d; |
159 |
|
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break; |
160 |
|
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case 'b': |
161 |
|
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colval(exposure,BLU) *= d; |
162 |
|
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break; |
163 |
|
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default: |
164 |
|
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goto badopt; |
165 |
|
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} |
166 |
|
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i++; |
167 |
|
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break; |
168 |
greg |
1.13 |
case 'f': |
169 |
|
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lampdat = argv[++i]; |
170 |
|
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break; |
171 |
|
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case 't': |
172 |
|
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lamptype = argv[++i]; |
173 |
|
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break; |
174 |
greg |
1.1 |
case '1': |
175 |
|
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singlepass = 1; |
176 |
|
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break; |
177 |
greg |
1.6 |
case '2': |
178 |
|
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singlepass = 0; |
179 |
|
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break; |
180 |
greg |
1.9 |
case 'n': |
181 |
greg |
1.1 |
npts = atoi(argv[++i]) / 2; |
182 |
|
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break; |
183 |
|
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case 's': |
184 |
|
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spread = atof(argv[++i]); |
185 |
|
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break; |
186 |
|
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case 'a': |
187 |
|
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avghot = !avghot; |
188 |
|
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break; |
189 |
|
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case 'h': |
190 |
|
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hotlvl = atof(argv[++i]); |
191 |
|
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break; |
192 |
|
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case 'r': |
193 |
|
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rad = atof(argv[++i]); |
194 |
|
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break; |
195 |
greg |
2.9 |
case 'm': |
196 |
|
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thresh = atof(argv[++i]); |
197 |
|
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if (rad <= FTINY) |
198 |
|
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rad = 1.0; |
199 |
|
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break; |
200 |
greg |
1.1 |
case 'b': |
201 |
greg |
2.9 |
rad = thresh = 0.0; |
202 |
greg |
1.1 |
break; |
203 |
|
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default:; |
204 |
|
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badopt: |
205 |
|
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fprintf(stderr, "%s: unknown option: %s\n", |
206 |
|
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progname, argv[i]); |
207 |
|
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quit(1); |
208 |
|
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break; |
209 |
|
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} |
210 |
|
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else |
211 |
|
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break; |
212 |
greg |
1.14 |
/* get lamp data (if necessary) */ |
213 |
|
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if (lamptype != NULL) { |
214 |
|
|
if (loadlamps(lampdat) < 0) |
215 |
|
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quit(1); |
216 |
|
|
if ((lampcolor = matchlamp(lamptype)) == NULL) { |
217 |
|
|
fprintf(stderr, "%s: unknown lamp type\n", lamptype); |
218 |
|
|
quit(1); |
219 |
|
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} |
220 |
greg |
1.18 |
for (i = 0; i < 3; i++) |
221 |
|
|
if (lampcolor[i] > 1e-4) |
222 |
|
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colval(exposure,i) /= lampcolor[i]; |
223 |
greg |
1.14 |
freelamps(); |
224 |
|
|
} |
225 |
|
|
/* open input file */ |
226 |
greg |
1.1 |
if (i == argc) { |
227 |
|
|
if (singlepass) |
228 |
|
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fin = stdin; |
229 |
|
|
else { |
230 |
|
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tfname = mktemp(TEMPLATE); |
231 |
|
|
if ((fin = fopen(tfname, "w+")) == NULL) { |
232 |
|
|
fprintf(stderr, "%s: can't create ", progname); |
233 |
|
|
fprintf(stderr, "temp file \"%s\"\n", tfname); |
234 |
|
|
quit(1); |
235 |
|
|
} |
236 |
|
|
copyfile(stdin, fin); |
237 |
|
|
if (fseek(fin, 0L, 0) == -1) { |
238 |
|
|
fprintf(stderr, "%s: seek fail\n", progname); |
239 |
|
|
quit(1); |
240 |
|
|
} |
241 |
|
|
} |
242 |
|
|
} else if (i == argc-1) { |
243 |
|
|
if ((fin = fopen(argv[i], "r")) == NULL) { |
244 |
|
|
fprintf(stderr, "%s: can't open file \"%s\"\n", |
245 |
|
|
progname, argv[i]); |
246 |
|
|
quit(1); |
247 |
|
|
} |
248 |
|
|
} else { |
249 |
|
|
fprintf(stderr, "%s: bad # file arguments\n", progname); |
250 |
|
|
quit(1); |
251 |
|
|
} |
252 |
greg |
1.9 |
/* get header */ |
253 |
greg |
1.16 |
getheader(fin, headline, NULL); |
254 |
|
|
if (wrongformat) { |
255 |
|
|
fprintf(stderr, "%s: input must be a Radiance picture\n", |
256 |
|
|
progname); |
257 |
|
|
quit(1); |
258 |
|
|
} |
259 |
greg |
1.1 |
/* add new header info. */ |
260 |
|
|
printargs(i, argv, stdout); |
261 |
|
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/* get picture size */ |
262 |
greg |
1.19 |
if ((order = fgetresolu(&xres, &yres, fin)) < 0) { |
263 |
greg |
1.1 |
fprintf(stderr, "%s: bad picture size\n", progname); |
264 |
|
|
quit(1); |
265 |
|
|
} |
266 |
greg |
1.19 |
if (!(order & YMAJOR)) |
267 |
|
|
inpaspect = 1.0/inpaspect; |
268 |
greg |
1.9 |
/* compute output resolution */ |
269 |
|
|
if (ncols <= 0) |
270 |
greg |
1.4 |
ncols = x_c*xres + .5; |
271 |
greg |
1.9 |
if (nrows <= 0) |
272 |
greg |
1.4 |
nrows = y_r*yres + .5; |
273 |
greg |
1.9 |
if (outaspect > .01) { |
274 |
|
|
d = inpaspect * yres/xres / outaspect; |
275 |
|
|
if (d * ncols > nrows) |
276 |
|
|
ncols = nrows / d; |
277 |
|
|
else |
278 |
|
|
nrows = ncols * d; |
279 |
|
|
} |
280 |
|
|
x_c = (double)ncols/xres; |
281 |
|
|
y_r = (double)nrows/yres; |
282 |
greg |
1.1 |
|
283 |
greg |
1.9 |
if (singlepass) { /* skip exposure, etc. */ |
284 |
greg |
1.1 |
pass1default(); |
285 |
|
|
pass2(fin); |
286 |
|
|
quit(0); |
287 |
|
|
} |
288 |
|
|
|
289 |
|
|
fpos = ftell(fin); /* save input file position */ |
290 |
|
|
|
291 |
|
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pass1(fin); |
292 |
|
|
|
293 |
|
|
if (fseek(fin, fpos, 0) == -1) { |
294 |
|
|
fprintf(stderr, "%s: seek fail\n", progname); |
295 |
|
|
quit(1); |
296 |
|
|
} |
297 |
|
|
pass2(fin); |
298 |
|
|
|
299 |
|
|
quit(0); |
300 |
|
|
} |
301 |
|
|
|
302 |
|
|
|
303 |
greg |
1.9 |
headline(s) /* process line from header */ |
304 |
|
|
char *s; |
305 |
|
|
{ |
306 |
greg |
1.16 |
char fmt[32]; |
307 |
|
|
|
308 |
greg |
1.9 |
fputs(s, stdout); /* copy to output */ |
309 |
|
|
if (isaspect(s)) /* get aspect ratio */ |
310 |
|
|
inpaspect *= aspectval(s); |
311 |
greg |
2.8 |
else if (isexpos(s)) |
312 |
|
|
hotlvl *= exposval(s); |
313 |
greg |
1.16 |
else if (isformat(s)) { |
314 |
|
|
formatval(fmt, s); |
315 |
|
|
wrongformat = strcmp(fmt, COLRFMT); |
316 |
|
|
} |
317 |
greg |
1.9 |
} |
318 |
|
|
|
319 |
|
|
|
320 |
greg |
1.1 |
copyfile(in, out) /* copy a file */ |
321 |
|
|
register FILE *in, *out; |
322 |
|
|
{ |
323 |
|
|
register int c; |
324 |
|
|
|
325 |
|
|
while ((c = getc(in)) != EOF) |
326 |
|
|
putc(c, out); |
327 |
|
|
|
328 |
|
|
if (ferror(out)) { |
329 |
|
|
fprintf(stderr, "%s: write error in copyfile\n", progname); |
330 |
|
|
quit(1); |
331 |
|
|
} |
332 |
|
|
} |
333 |
|
|
|
334 |
|
|
|
335 |
|
|
pass1(in) /* first pass of picture file */ |
336 |
|
|
FILE *in; |
337 |
|
|
{ |
338 |
|
|
int i; |
339 |
|
|
COLOR *scan; |
340 |
|
|
|
341 |
|
|
pass1init(); |
342 |
|
|
|
343 |
|
|
scan = (COLOR *)malloc(xres*sizeof(COLOR)); |
344 |
|
|
if (scan == NULL) { |
345 |
|
|
fprintf(stderr, "%s: out of memory\n", progname); |
346 |
|
|
quit(1); |
347 |
|
|
} |
348 |
|
|
for (i = 0; i < yres; i++) { |
349 |
|
|
if (freadscan(scan, xres, in) < 0) { |
350 |
greg |
2.7 |
nrows = (long)nrows * i / yres; /* adjust frame */ |
351 |
greg |
1.1 |
if (nrows <= 0) { |
352 |
|
|
fprintf(stderr, "%s: empty frame\n", progname); |
353 |
|
|
quit(1); |
354 |
|
|
} |
355 |
|
|
fprintf(stderr, "%s: warning - partial frame (%d%%)\n", |
356 |
greg |
2.7 |
progname, (int)(100L*i/yres)); |
357 |
greg |
1.1 |
yres = i; |
358 |
greg |
1.11 |
y_r = (double)nrows/yres; |
359 |
greg |
1.1 |
break; |
360 |
|
|
} |
361 |
|
|
pass1scan(scan, i); |
362 |
|
|
} |
363 |
|
|
free((char *)scan); |
364 |
|
|
} |
365 |
|
|
|
366 |
|
|
|
367 |
|
|
pass2(in) /* last pass on file, write to stdout */ |
368 |
|
|
FILE *in; |
369 |
|
|
{ |
370 |
|
|
int yread; |
371 |
|
|
int ycent, xcent; |
372 |
|
|
int r, c; |
373 |
greg |
2.4 |
|
374 |
greg |
1.1 |
pass2init(); |
375 |
|
|
scan2init(); |
376 |
|
|
yread = 0; |
377 |
|
|
for (r = 0; r < nrows; r++) { |
378 |
|
|
ycent = (long)r*yres/nrows; |
379 |
|
|
while (yread <= ycent+yrad) { |
380 |
|
|
if (yread < yres) { |
381 |
|
|
if (freadscan(scanin[yread%barsize], |
382 |
|
|
xres, in) < 0) { |
383 |
|
|
fprintf(stderr, |
384 |
|
|
"%s: bad read (y=%d)\n", |
385 |
|
|
progname, yres-1-yread); |
386 |
|
|
quit(1); |
387 |
|
|
} |
388 |
|
|
pass2scan(scanin[yread%barsize], yread); |
389 |
|
|
} |
390 |
|
|
yread++; |
391 |
|
|
} |
392 |
greg |
2.9 |
if (obarsize > 0) |
393 |
|
|
scan2sync(r); |
394 |
greg |
1.1 |
for (c = 0; c < ncols; c++) { |
395 |
|
|
xcent = (long)c*xres/ncols; |
396 |
greg |
2.9 |
if (thresh > FTINY) |
397 |
|
|
dothresh(xcent, ycent, c, r); |
398 |
|
|
else if (rad > FTINY) |
399 |
|
|
dogauss(scanout[c], xcent, ycent, c, r); |
400 |
|
|
else |
401 |
greg |
1.1 |
dobox(scanout[c], xcent, ycent, c, r); |
402 |
|
|
} |
403 |
greg |
2.9 |
if (scanout != NULL && fwritescan(scanout, ncols, stdout) < 0) { |
404 |
greg |
1.1 |
fprintf(stderr, "%s: write error in pass2\n", progname); |
405 |
|
|
quit(1); |
406 |
|
|
} |
407 |
|
|
} |
408 |
greg |
2.9 |
/* skip leftover input */ |
409 |
greg |
1.10 |
while (yread < yres) { |
410 |
|
|
if (freadscan(scanin[0], xres, in) < 0) |
411 |
|
|
break; |
412 |
|
|
yread++; |
413 |
|
|
} |
414 |
greg |
2.9 |
scan2flush(); /* flush output */ |
415 |
greg |
1.1 |
} |
416 |
|
|
|
417 |
|
|
|
418 |
|
|
scan2init() /* prepare scanline arrays */ |
419 |
|
|
{ |
420 |
greg |
1.15 |
COLOR ctmp; |
421 |
greg |
2.4 |
double d; |
422 |
greg |
1.1 |
register int i; |
423 |
|
|
|
424 |
greg |
2.9 |
xbrad = xres/ncols/2 + 1; |
425 |
|
|
ybrad = yres/nrows/2 + 1; |
426 |
|
|
if (rad > FTINY) { |
427 |
greg |
1.1 |
if (nrows >= yres && ncols >= xres) |
428 |
|
|
rad *= (y_r + x_c)/2.0; |
429 |
|
|
|
430 |
greg |
2.9 |
if (thresh > FTINY) { |
431 |
|
|
xrad = CHECKRAD*THRESHRAD*rad/x_c + xbrad; |
432 |
|
|
yrad = CHECKRAD*THRESHRAD*rad/y_r + ybrad; |
433 |
|
|
orad = CHECKRAD*THRESHRAD*rad + 1; |
434 |
|
|
obarsize = 2*orad + 1; |
435 |
|
|
} else { |
436 |
|
|
xrad = CHECKRAD*rad/x_c + 1; |
437 |
|
|
yrad = CHECKRAD*rad/y_r + 1; |
438 |
|
|
} |
439 |
greg |
1.1 |
initmask(); /* initialize filter table */ |
440 |
greg |
2.9 |
} else { |
441 |
|
|
xrad = xbrad; |
442 |
|
|
yrad = ybrad; |
443 |
greg |
1.1 |
} |
444 |
greg |
1.17 |
barsize = 2*yrad + 1; |
445 |
greg |
1.1 |
scanin = (COLOR **)malloc(barsize*sizeof(COLOR *)); |
446 |
|
|
for (i = 0; i < barsize; i++) { |
447 |
|
|
scanin[i] = (COLOR *)malloc(xres*sizeof(COLOR)); |
448 |
|
|
if (scanin[i] == NULL) { |
449 |
|
|
fprintf(stderr, "%s: out of memory\n", progname); |
450 |
|
|
quit(1); |
451 |
|
|
} |
452 |
|
|
} |
453 |
greg |
2.9 |
if (obarsize > 0) { |
454 |
|
|
scoutbar = (COLOR **)malloc(obarsize*sizeof(COLOR *)); |
455 |
|
|
greybar = (float **)malloc(obarsize*sizeof(float *)); |
456 |
|
|
for (i = 0; i < obarsize; i++) { |
457 |
|
|
scoutbar[i] = (COLOR *)malloc(ncols*sizeof(COLOR)); |
458 |
|
|
greybar[i] = (float *)malloc(ncols*sizeof(float)); |
459 |
|
|
if (scoutbar[i] == NULL | greybar[i] == NULL) { |
460 |
|
|
fprintf(stderr, "%s: out of memory\n", |
461 |
|
|
progname); |
462 |
|
|
quit(1); |
463 |
|
|
} |
464 |
|
|
} |
465 |
|
|
} else { |
466 |
|
|
scanout = (COLOR *)malloc(ncols*sizeof(COLOR)); |
467 |
|
|
if (scanout == NULL) { |
468 |
|
|
fprintf(stderr, "%s: out of memory\n", progname); |
469 |
|
|
quit(1); |
470 |
|
|
} |
471 |
greg |
1.1 |
} |
472 |
greg |
1.15 |
/* record pixel aspect ratio */ |
473 |
greg |
1.12 |
if (!correctaspect) { |
474 |
greg |
1.19 |
d = order & YMAJOR ? x_c/y_r : y_r/x_c ; |
475 |
greg |
1.15 |
if (!FEQ(d,1.0)) |
476 |
greg |
1.12 |
fputaspect(d, stdout); |
477 |
|
|
} |
478 |
greg |
1.15 |
/* record exposure */ |
479 |
greg |
1.9 |
d = bright(exposure); |
480 |
greg |
1.15 |
if (!FEQ(d,1.0)) |
481 |
greg |
1.9 |
fputexpos(d, stdout); |
482 |
greg |
1.15 |
/* record color correction */ |
483 |
|
|
copycolor(ctmp, exposure); |
484 |
|
|
scalecolor(ctmp, 1.0/d); |
485 |
|
|
if (!FEQ(colval(ctmp,RED),colval(ctmp,GRN)) || |
486 |
|
|
!FEQ(colval(ctmp,GRN),colval(ctmp,BLU))) |
487 |
|
|
fputcolcor(ctmp, stdout); |
488 |
greg |
1.1 |
printf("\n"); |
489 |
greg |
1.15 |
/* write out resolution */ |
490 |
greg |
1.19 |
fputresolu(order, ncols, nrows, stdout); |
491 |
greg |
2.9 |
} |
492 |
|
|
|
493 |
|
|
|
494 |
|
|
scan2sync(r) /* synchronize grey averages and output scan */ |
495 |
|
|
int r; |
496 |
|
|
{ |
497 |
|
|
static int nextrow = 0; |
498 |
|
|
COLOR ctmp; |
499 |
|
|
int ybot; |
500 |
|
|
register int c; |
501 |
|
|
/* average input scanlines */ |
502 |
|
|
while (nextrow < r+orad && nextrow < nrows) { |
503 |
|
|
ybot = (long)nextrow*yres/nrows; |
504 |
|
|
for (c = 0; c < ncols; c++) { |
505 |
|
|
dobox(ctmp, (int)((long)c*xres/ncols),ybot, c,nextrow); |
506 |
|
|
greybar[nextrow%obarsize][c] = bright(ctmp); |
507 |
|
|
} |
508 |
|
|
/* and zero output scanline */ |
509 |
|
|
bzero((char *)scoutbar[nextrow%obarsize], ncols*sizeof(COLOR)); |
510 |
|
|
nextrow++; |
511 |
|
|
} |
512 |
|
|
/* point to top scanline for output */ |
513 |
|
|
if (r-orad >= 0) |
514 |
|
|
scanout = scoutbar[(r-orad)%obarsize]; |
515 |
|
|
else |
516 |
|
|
scanout = NULL; |
517 |
|
|
} |
518 |
|
|
|
519 |
|
|
|
520 |
|
|
scan2flush() /* flush output buffer */ |
521 |
|
|
{ |
522 |
|
|
register int r; |
523 |
|
|
|
524 |
|
|
for (r = nrows-orad; r < nrows; r++) |
525 |
|
|
if (fwritescan(scoutbar[r%obarsize], ncols, stdout) < 0) |
526 |
|
|
break; |
527 |
|
|
if (fflush(stdout) < 0) { |
528 |
|
|
fprintf(stderr, "%s: write error at end of pass2\n", progname); |
529 |
|
|
exit(1); |
530 |
|
|
} |
531 |
greg |
1.1 |
} |
532 |
|
|
|
533 |
|
|
|
534 |
|
|
quit(code) /* remove temporary file and exit */ |
535 |
|
|
int code; |
536 |
|
|
{ |
537 |
|
|
if (tfname != NULL) |
538 |
|
|
unlink(tfname); |
539 |
|
|
exit(code); |
540 |
|
|
} |