1 |
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/* Copyright (c) 1992 Regents of the University of California */ |
2 |
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|
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#ifndef lint |
2 |
< |
static char SCCSid[] = "$SunId$ LBL"; |
2 |
> |
static const char RCSid[] = "$Id$"; |
3 |
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#endif |
6 |
– |
|
4 |
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/* |
5 |
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* Radiance picture to PostScript file translator -- one way! |
6 |
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*/ |
7 |
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|
8 |
< |
#include <stdio.h> |
8 |
> |
#include <math.h> |
9 |
> |
#include <ctype.h> |
10 |
> |
|
11 |
> |
#include "platform.h" |
12 |
> |
#include "paths.h" |
13 |
> |
#include "rtio.h" |
14 |
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#include "color.h" |
15 |
< |
#include "random.h" |
15 |
> |
#include "resolu.h" |
16 |
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|
17 |
< |
#define HMARGIN (.5*72) /* horizontal margin */ |
16 |
< |
#define VMARGIN (.5*72) /* vertical margin */ |
17 |
< |
#define PWIDTH (8.5*72-2*HMARGIN) /* width of device */ |
18 |
< |
#define PHEIGHT (11*72-2*VMARGIN) /* height of device */ |
17 |
> |
#define UPPER(c) ((c)&~0x20) /* ASCII trick */ |
18 |
|
|
19 |
+ |
#define CODE6GAM 1.47 /* gamma for 6-bit codes */ |
20 |
+ |
#define DEFGGAM 1.0 /* greyscale device gamma */ |
21 |
+ |
#define DEFCGAM 1.8 /* color device gamma */ |
22 |
+ |
|
23 |
+ |
#define GRY -1 /* artificial index for grey */ |
24 |
+ |
|
25 |
+ |
#define DEFMARG 0.5 /* default margin (inches) */ |
26 |
+ |
#define DEFWIDTH 8.5 /* default page width */ |
27 |
+ |
#define DEFHEIGHT 11 /* default page height */ |
28 |
+ |
#define HMARGIN (hmarg*72) /* horizontal margin */ |
29 |
+ |
#define VMARGIN (vmarg*72) /* vertical margin */ |
30 |
+ |
#define PWIDTH (width*72-2*HMARGIN) /* width of device */ |
31 |
+ |
#define PHEIGHT (height*72-2*VMARGIN) /* height of device */ |
32 |
+ |
|
33 |
+ |
#define RUNCHR '*' /* character to start rle */ |
34 |
+ |
#define MINRUN 4 /* minimum run-length */ |
35 |
+ |
#define RSTRT '!' /* character for MINRUN */ |
36 |
+ |
#define MAXRUN (MINRUN+'~'-RSTRT) /* maximum run-length */ |
37 |
+ |
|
38 |
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char code[] = /* 6-bit code lookup table */ |
39 |
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"0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ@+"; |
40 |
|
|
41 |
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int wrongformat = 0; /* input in wrong format? */ |
42 |
< |
double pixaspect = 1.0; /* pixel aspect ratio */ |
42 |
> |
double pixaspect = 1.0; /* pixel aspect ratio */ |
43 |
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|
44 |
+ |
double devgam = 0.; /* device gamma response */ |
45 |
+ |
double hmarg = DEFMARG, |
46 |
+ |
vmarg = DEFMARG; /* horizontal and vertical margins */ |
47 |
+ |
double width = DEFWIDTH, |
48 |
+ |
height = DEFHEIGHT; /* default paper width and height */ |
49 |
+ |
double dpi = 0; /* print density (0 if unknown) */ |
50 |
+ |
int docolor = 1; /* produce color image? */ |
51 |
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int bradj = 0; /* brightness adjustment */ |
52 |
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int ncopies = 1; /* number of copies */ |
53 |
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|
54 |
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char *progname; |
55 |
+ |
int xmax, ymax; /* input image dimensions */ |
56 |
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|
57 |
< |
int xmax, ymax; |
57 |
> |
typedef void putprimf_t(COLR *scn, int pri); |
58 |
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|
59 |
+ |
static gethfunc headline; |
60 |
+ |
static putprimf_t Aputprim, Bputprim, Cputprim; |
61 |
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|
62 |
< |
headline(s) /* check header line */ |
63 |
< |
char *s; |
62 |
> |
static double unit2inch(char *s); |
63 |
> |
static int matchid(char *name, char *id); |
64 |
> |
static void parsepaper(char *ps); |
65 |
> |
static void quiterr(char *err); |
66 |
> |
static void PSheader(int ac, char **av); |
67 |
> |
static void PStrailer(void); |
68 |
> |
static void PSprocdef(char *nam); |
69 |
> |
static void ra2ps(void); |
70 |
> |
static void putrle(int cnt, int cod); |
71 |
> |
|
72 |
> |
|
73 |
> |
putprimf_t *putprim = Aputprim; /* function for writing scanline */ |
74 |
> |
|
75 |
> |
|
76 |
> |
static int |
77 |
> |
headline( /* check header line */ |
78 |
> |
char *s, |
79 |
> |
void *p |
80 |
> |
) |
81 |
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{ |
82 |
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char fmt[32]; |
82 |
> |
char fmt[MAXFMTLEN]; |
83 |
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|
84 |
< |
if (isformat(s)) { |
85 |
< |
formatval(fmt, s); |
86 |
< |
wrongformat = strcmp(fmt, COLRFMT); |
42 |
< |
} else if (isaspect(s)) |
84 |
> |
if (formatval(fmt, s)) |
85 |
> |
wrongformat = strcmp(fmt, COLRFMT) && strcmp(fmt, SPECFMT); |
86 |
> |
else if (isaspect(s)) |
87 |
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pixaspect *= aspectval(s); |
88 |
+ |
else if (isncomp(s)) |
89 |
+ |
NCSAMP = ncompval(s); |
90 |
+ |
else if (iswlsplit(s)) |
91 |
+ |
wlsplitval(WLPART, s); |
92 |
+ |
return(0); |
93 |
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} |
94 |
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|
95 |
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|
96 |
< |
main(argc, argv) |
48 |
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int argc; |
49 |
< |
char *argv[]; |
95 |
> |
int |
96 |
> |
main(int argc, char *argv[]) |
97 |
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{ |
98 |
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int i; |
99 |
+ |
double d; |
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|
101 |
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progname = argv[0]; |
102 |
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|
103 |
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for (i = 1; i < argc; i++) |
104 |
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if (argv[i][0] == '-') |
105 |
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switch (argv[i][1]) { |
106 |
+ |
case 'b': /* produce b&w PostScript */ |
107 |
+ |
docolor = 0; |
108 |
+ |
break; |
109 |
+ |
case 'c': /* produce color PostScript */ |
110 |
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docolor = 1; |
111 |
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break; |
112 |
+ |
case 'A': /* standard ASCII encoding */ |
113 |
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putprim = Aputprim; |
114 |
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break; |
115 |
+ |
case 'B': /* standard binary encoding */ |
116 |
+ |
putprim = Bputprim; |
117 |
+ |
break; |
118 |
+ |
case 'C': /* compressed ASCII encoding */ |
119 |
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putprim = Cputprim; |
120 |
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break; |
121 |
+ |
case 'd': /* print density */ |
122 |
+ |
dpi = atof(argv[++i]); |
123 |
+ |
break; |
124 |
+ |
case 'g': /* device gamma adjustment */ |
125 |
+ |
devgam = atof(argv[++i]); |
126 |
+ |
break; |
127 |
+ |
case 'p': /* paper size */ |
128 |
+ |
parsepaper(argv[++i]); |
129 |
+ |
break; |
130 |
+ |
case 'm': /* margin */ |
131 |
+ |
d = atof(argv[i+1]); |
132 |
+ |
d *= unit2inch(argv[i+1]); |
133 |
+ |
switch (argv[i][2]) { |
134 |
+ |
case '\0': |
135 |
+ |
hmarg = vmarg = d; |
136 |
+ |
break; |
137 |
+ |
case 'h': |
138 |
+ |
hmarg = d; |
139 |
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break; |
140 |
+ |
case 'v': |
141 |
+ |
vmarg = d; |
142 |
+ |
break; |
143 |
+ |
default: |
144 |
+ |
goto userr; |
145 |
+ |
} |
146 |
+ |
i++; |
147 |
+ |
break; |
148 |
|
case 'e': /* exposure adjustment */ |
149 |
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if (argv[i+1][0] != '+' && argv[i+1][0] != '-') |
150 |
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goto userr; |
167 |
|
exit(1); |
168 |
|
} |
169 |
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if (i == argc-2 && freopen(argv[i+1], "w", stdout) == NULL) { |
170 |
< |
fprintf(stderr, "can't open output \"%s\"\n", |
170 |
> |
fprintf(stderr, "%s: can't open output \"%s\"\n", |
171 |
|
progname, argv[i+1]); |
172 |
|
exit(1); |
173 |
|
} |
174 |
+ |
SET_FILE_BINARY(stdin); |
175 |
|
/* get our header */ |
176 |
|
getheader(stdin, headline, NULL); |
177 |
|
if (wrongformat || fgetresolu(&xmax, &ymax, stdin) < 0) |
178 |
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quiterr("bad picture format"); |
179 |
+ |
/* gamma compression */ |
180 |
+ |
if (devgam <= 0.05) |
181 |
+ |
devgam = docolor ? DEFCGAM : DEFGGAM; |
182 |
+ |
if (putprim == Cputprim) |
183 |
+ |
setcolrgam(CODE6GAM); |
184 |
+ |
else if (devgam != 1.) |
185 |
+ |
setcolrgam(devgam); |
186 |
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/* write header */ |
187 |
< |
PSheader(i <= argc-1 ? argv[i] : "<stdin>"); |
187 |
> |
PSheader(argc, argv); |
188 |
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/* convert file */ |
189 |
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ra2ps(); |
190 |
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/* write trailer */ |
191 |
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PStrailer(); |
192 |
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exit(0); |
193 |
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userr: |
194 |
< |
fprintf(stderr, "Usage: %s [-e +/-stops] [input [output]]\n", progname); |
194 |
> |
fprintf(stderr, |
195 |
> |
"Usage: %s [-b|c][-A|B|C][-e +/-stops][-p paper][-m[h|v] margin][-d dpi][-g gamma] [input [output]]\n", |
196 |
> |
progname); |
197 |
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exit(1); |
198 |
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} |
199 |
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|
200 |
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|
201 |
< |
quiterr(err) /* print message and exit */ |
202 |
< |
char *err; |
201 |
> |
static double |
202 |
> |
unit2inch( /* determine unit */ |
203 |
> |
char *s |
204 |
> |
) |
205 |
|
{ |
206 |
+ |
static struct unit {char n; float f;} u[] = { |
207 |
+ |
{'i', 1.}, |
208 |
+ |
{'m', 1./25.4}, |
209 |
+ |
{'c', 1./2.54}, |
210 |
+ |
{'\0',0} }; |
211 |
+ |
struct unit *up; |
212 |
+ |
|
213 |
+ |
while (*s && !isalpha(*s)) |
214 |
+ |
s++; |
215 |
+ |
for (up = u; up->n; up++) |
216 |
+ |
if (up->n == *s) |
217 |
+ |
return(up->f); |
218 |
+ |
return(1.); |
219 |
+ |
} |
220 |
+ |
|
221 |
+ |
|
222 |
+ |
static int |
223 |
+ |
matchid( /* see if name matches id (case insensitive) */ |
224 |
+ |
char *name, |
225 |
+ |
char *id |
226 |
+ |
) |
227 |
+ |
{ |
228 |
+ |
char *s = name; |
229 |
+ |
|
230 |
+ |
while (*s) { |
231 |
+ |
if (isalpha(*s)) { |
232 |
+ |
if (!isalpha(*id) || UPPER(*s) != UPPER(*id)) |
233 |
+ |
return(0); |
234 |
+ |
} else if (*s != *id) |
235 |
+ |
return(0); |
236 |
+ |
s++; id++; |
237 |
+ |
} |
238 |
+ |
return(!*id || s-name >= 3); /* substrings >= 3 chars OK */ |
239 |
+ |
} |
240 |
+ |
|
241 |
+ |
|
242 |
+ |
static void |
243 |
+ |
parsepaper( /* determine paper size from name */ |
244 |
+ |
char *ps |
245 |
+ |
) |
246 |
+ |
{ |
247 |
+ |
static struct psize {char n[12]; float w,h;} p[] = { |
248 |
+ |
{"envelope", 4.12, 9.5}, |
249 |
+ |
{"executive", 7.25, 10.5}, |
250 |
+ |
{"letter", 8.5, 11.}, |
251 |
+ |
{"lettersmall", 7.68, 10.16}, |
252 |
+ |
{"legal", 8.5, 14.}, |
253 |
+ |
{"monarch", 3.87, 7.5}, |
254 |
+ |
{"statement", 5.5, 8.5}, |
255 |
+ |
{"tabloid", 11., 17.}, |
256 |
+ |
{"A3", 11.69, 16.54}, |
257 |
+ |
{"A4", 8.27, 11.69}, |
258 |
+ |
{"A4small", 7.47, 10.85}, |
259 |
+ |
{"A5", 6.00, 8.27}, |
260 |
+ |
{"A6", 4.13, 6.00}, |
261 |
+ |
{"B4", 10.12, 14.33}, |
262 |
+ |
{"B5", 7.17, 10.12}, |
263 |
+ |
{"C5", 6.38, 9.01}, |
264 |
+ |
{"C6", 4.49, 6.38}, |
265 |
+ |
{"DL", 4.33, 8.66}, |
266 |
+ |
{"hagaki", 3.94, 5.83}, |
267 |
+ |
{"",0.0,0.0} }; |
268 |
+ |
struct psize *pp; |
269 |
+ |
char *s = ps; |
270 |
+ |
double d; |
271 |
+ |
|
272 |
+ |
if (isdigit(*s)) { /* check for WWxHH specification */ |
273 |
+ |
width = atof(s); |
274 |
+ |
while (*s && !isalpha(*s)) |
275 |
+ |
s++; |
276 |
+ |
d = unit2inch(s); |
277 |
+ |
height = atof(++s); |
278 |
+ |
width *= d; |
279 |
+ |
height *= d; |
280 |
+ |
if ((width >= 1.) & (height >= 1.)) |
281 |
+ |
return; |
282 |
+ |
} else /* check for match to standard size */ |
283 |
+ |
for (pp = p; pp->n[0]; pp++) |
284 |
+ |
if (matchid(s, pp->n)) { |
285 |
+ |
width = pp->w; |
286 |
+ |
height = pp->h; |
287 |
+ |
return; |
288 |
+ |
} |
289 |
+ |
fprintf(stderr, "%s: unknown paper size \"%s\" -- known sizes:\n", |
290 |
+ |
progname, ps); |
291 |
+ |
fprintf(stderr, "_Name________Width_Height_(inches)\n"); |
292 |
+ |
for (pp = p; pp->n[0]; pp++) |
293 |
+ |
fprintf(stderr, "%-11s %5.2f %5.2f\n", pp->n, pp->w, pp->h); |
294 |
+ |
fprintf(stderr, "Or use WWxHH size specification\n"); |
295 |
+ |
exit(1); |
296 |
+ |
} |
297 |
+ |
|
298 |
+ |
|
299 |
+ |
static void |
300 |
+ |
quiterr( /* print message and exit */ |
301 |
+ |
char *err |
302 |
+ |
) |
303 |
+ |
{ |
304 |
|
if (err != NULL) { |
305 |
|
fprintf(stderr, "%s: %s\n", progname, err); |
306 |
|
exit(1); |
309 |
|
} |
310 |
|
|
311 |
|
|
312 |
< |
PSheader(name) /* print PostScript header */ |
313 |
< |
char *name; |
312 |
> |
static void |
313 |
> |
PSheader( /* print PostScript header */ |
314 |
> |
int ac, |
315 |
> |
char **av |
316 |
> |
) |
317 |
|
{ |
318 |
< |
int landscape = 0; |
319 |
< |
double pwidth, pheight; |
320 |
< |
double iwidth, iheight; |
321 |
< |
|
322 |
< |
printf("%%!\n"); |
323 |
< |
printf("%%%%Title: %s\n", name); |
318 |
> |
char *rstr; |
319 |
> |
int landscape, rotate, n; |
320 |
> |
double pwidth, pheight; |
321 |
> |
double iwidth, iheight; |
322 |
> |
/* EPS comments */ |
323 |
> |
puts("%!PS-Adobe-2.0 EPSF-2.0"); |
324 |
> |
printf("%%%%Title: "); printargs(ac, av, stdout); |
325 |
|
printf("%%%%Creator: %s\n", progname); |
326 |
|
printf("%%%%Pages: %d\n", ncopies); |
327 |
< |
if (landscape = xmax > pixaspect*ymax) |
328 |
< |
printf("%%%%Landscape\n"); |
327 |
> |
if ( (landscape = xmax > pixaspect*ymax) ) |
328 |
> |
puts("%%Orientation: Landscape"); |
329 |
|
else |
330 |
< |
printf("%%%%Portrait\n"); |
331 |
< |
printf("%%%%EndComments\n"); |
128 |
< |
printf("gsave\n"); |
129 |
< |
printf("64 dict begin\n"); |
130 |
< |
/* define image reader */ |
131 |
< |
PSprocdef("read6bit"); |
132 |
< |
/* set up transformation matrix */ |
133 |
< |
printf("%f %f translate\n", HMARGIN, VMARGIN); |
134 |
< |
if (PWIDTH > PHEIGHT ^ landscape) { |
135 |
< |
printf("0 %f translate\n", PHEIGHT); |
136 |
< |
printf("-90 rotate\n"); |
330 |
> |
puts("%%Orientation: Portrait"); |
331 |
> |
if ( (rotate = (PWIDTH > PHEIGHT) ^ landscape) ) { |
332 |
|
pwidth = PHEIGHT; |
333 |
|
pheight = PWIDTH; |
334 |
|
} else { |
335 |
|
pwidth = PWIDTH; |
336 |
|
pheight = PHEIGHT; |
337 |
|
} |
338 |
< |
if (pheight/pwidth > pixaspect*ymax/xmax) { |
339 |
< |
iwidth = pwidth; |
340 |
< |
iheight = pwidth*pixaspect*ymax/xmax; |
341 |
< |
} else { |
342 |
< |
iheight = pheight; |
343 |
< |
iwidth = pheight*xmax/(pixaspect*ymax); |
338 |
> |
if (dpi > 100 && (pixaspect >= 0.99) & (pixaspect <= 1.01)) |
339 |
> |
if (pheight/pwidth > ymax/xmax) { |
340 |
> |
n = pwidth*dpi/xmax; /* floor */ |
341 |
> |
iwidth = n > 0 ? (double)(n*xmax)/dpi : pwidth; |
342 |
> |
iheight = iwidth*ymax/xmax; |
343 |
> |
} else { |
344 |
> |
n = pheight*dpi/ymax; /* floor */ |
345 |
> |
iheight = n > 0 ? (double)(n*ymax)/dpi : pheight; |
346 |
> |
iwidth = iheight*xmax/ymax; |
347 |
> |
} |
348 |
> |
else |
349 |
> |
if (pheight/pwidth > pixaspect*ymax/xmax) { |
350 |
> |
iwidth = pwidth; |
351 |
> |
iheight = iwidth*pixaspect*ymax/xmax; |
352 |
> |
} else { |
353 |
> |
iheight = pheight; |
354 |
> |
iwidth = iheight*xmax/(pixaspect*ymax); |
355 |
> |
} |
356 |
> |
if (rotate) |
357 |
> |
printf("%%%%BoundingBox: %.0f %.0f %.0f %.0f\n", |
358 |
> |
HMARGIN+(pheight-iheight)*.5, |
359 |
> |
VMARGIN+(pwidth-iwidth)*.5, |
360 |
> |
HMARGIN+(pheight-iheight)*.5+iheight, |
361 |
> |
VMARGIN+(pwidth-iwidth)*.5+iwidth); |
362 |
> |
else |
363 |
> |
printf("%%%%BoundingBox: %.0f %.0f %.0f %.0f\n", |
364 |
> |
HMARGIN+(pwidth-iwidth)*.5, |
365 |
> |
VMARGIN+(pheight-iheight)*.5, |
366 |
> |
HMARGIN+(pwidth-iwidth)*.5+iwidth, |
367 |
> |
VMARGIN+(pheight-iheight)*.5+iheight); |
368 |
> |
puts("%%EndComments"); |
369 |
> |
puts("gsave save"); |
370 |
> |
puts("17 dict begin"); |
371 |
> |
/* define image reader */ |
372 |
> |
if (docolor) { |
373 |
> |
printf("/redline %d string def\n", xmax); |
374 |
> |
printf("/grnline %d string def\n", xmax); |
375 |
> |
printf("/bluline %d string def\n", xmax); |
376 |
> |
} else |
377 |
> |
printf("/gryline %d string def\n", xmax); |
378 |
> |
/* use compressed encoding? */ |
379 |
> |
if (putprim == Cputprim) |
380 |
> |
PSprocdef("read6bitRLE"); |
381 |
> |
/* set up transformation matrix */ |
382 |
> |
printf("%f %f translate\n", HMARGIN, VMARGIN); |
383 |
> |
if (rotate) { |
384 |
> |
printf("%f 0 translate\n", PWIDTH); |
385 |
> |
puts("90 rotate"); |
386 |
|
} |
387 |
|
printf("%f %f translate\n", (pwidth-iwidth)*.5, (pheight-iheight)*.5); |
388 |
|
printf("%f %f scale\n", iwidth, iheight); |
389 |
< |
printf("%%%%EndProlog\n"); |
389 |
> |
puts("%%EndProlog"); |
390 |
|
/* start image procedure */ |
391 |
< |
printf("%d %d 8 [%d 0 0 %d 0 %d] {read6bit} image", xmax, ymax, |
392 |
< |
xmax, -ymax, ymax); |
391 |
> |
printf("%d %d 8 [%d 0 0 %d 0 %d]\n", xmax, ymax, xmax, -ymax, ymax); |
392 |
> |
if (putprim == Cputprim) { |
393 |
> |
if (docolor) { |
394 |
> |
puts("{redline read6bitRLE}"); |
395 |
> |
puts("{grnline read6bitRLE}"); |
396 |
> |
puts("{bluline read6bitRLE}"); |
397 |
> |
puts("true 3 colorimage"); |
398 |
> |
} else |
399 |
> |
puts("{gryline read6bitRLE} image"); |
400 |
> |
} else { |
401 |
> |
rstr = putprim==Aputprim ? "readhexstring" : "readstring"; |
402 |
> |
if (docolor) { |
403 |
> |
printf("{currentfile redline %s pop}\n", rstr); |
404 |
> |
printf("{currentfile grnline %s pop}\n", rstr); |
405 |
> |
printf("{currentfile bluline %s pop}\n", rstr); |
406 |
> |
puts("true 3 colorimage"); |
407 |
> |
} else |
408 |
> |
printf("{currentfile gryline %s pop} image\n", rstr); |
409 |
> |
} |
410 |
|
} |
411 |
|
|
412 |
|
|
413 |
< |
PStrailer() /* print PostScript trailer */ |
413 |
> |
static void |
414 |
> |
PStrailer(void) /* print PostScript trailer */ |
415 |
|
{ |
416 |
|
puts("%%Trailer"); |
417 |
|
if (ncopies > 1) |
418 |
|
printf("/#copies %d def\n", ncopies); |
419 |
|
puts("showpage"); |
420 |
|
puts("end"); |
421 |
+ |
puts("restore grestore"); |
422 |
|
puts("%%EOF"); |
423 |
|
} |
424 |
|
|
425 |
|
|
426 |
< |
PSprocdef(nam) /* define PS procedure to read image */ |
427 |
< |
char *nam; |
426 |
> |
static void |
427 |
> |
PSprocdef( /* define PS procedure to read image */ |
428 |
> |
char *nam |
429 |
> |
) |
430 |
|
{ |
431 |
|
short itab[128]; |
432 |
< |
register int i; |
433 |
< |
|
434 |
< |
for (i = 0; i < 128; i++) |
432 |
> |
int i; |
433 |
> |
/* assign code values */ |
434 |
> |
for (i = 0; i < 128; i++) /* clear */ |
435 |
|
itab[i] = -1; |
436 |
< |
for (i = 0; i < 64; i++) |
437 |
< |
itab[code[i]] = i<<2 | 2; |
438 |
< |
printf("/decode ["); |
436 |
> |
for (i = 1; i < 63; i++) /* assign greys */ |
437 |
> |
itab[(int)code[i]] = 256.0*pow((i+.5)/64.0, CODE6GAM/devgam); |
438 |
> |
itab[(int)code[0]] = 0; /* black is black */ |
439 |
> |
itab[(int)code[63]] = 255; /* and white is white */ |
440 |
> |
printf("/codetab ["); |
441 |
|
for (i = 0; i < 128; i++) { |
442 |
|
if (!(i & 0xf)) |
443 |
|
putchar('\n'); |
444 |
|
printf(" %3d", itab[i]); |
445 |
|
} |
446 |
|
printf("\n] def\n"); |
447 |
< |
printf("/scanline %d string def\n", xmax); |
448 |
< |
printf("/%s {\n", nam); |
447 |
> |
printf("/nrept 0 def\n"); |
448 |
> |
printf("/readbyte { currentfile read not {stop} if } bind def\n"); |
449 |
> |
printf("/decode { codetab exch get } bind def\n"); |
450 |
> |
printf("/%s {\t%% scanbuffer\n", nam); |
451 |
> |
printf("\t/scanline exch def\n"); |
452 |
|
printf("\t{ 0 1 %d { scanline exch\n", xmax-1); |
453 |
< |
printf("\t\t{ decode currentfile read not {stop} if get\n"); |
454 |
< |
printf("\tdup 0 lt {pop} {exit} ifelse } loop put } for\n"); |
455 |
< |
printf("} stopped {pop pop pop 0 string} {scanline} ifelse } def\n"); |
453 |
> |
printf("\t\tnrept 0 le\n"); |
454 |
> |
printf("\t\t\t{ { readbyte dup %d eq\n", RUNCHR); |
455 |
> |
printf("\t\t\t\t\t{ pop /nrept readbyte %d sub def\n", RSTRT-MINRUN+1); |
456 |
> |
printf("\t\t\t\t\t\t/reptv readbyte decode def\n"); |
457 |
> |
printf("\t\t\t\t\t\treptv exit }\n"); |
458 |
> |
printf("\t\t\t\t\t{ decode dup 0 lt {pop} {exit} ifelse }\n"); |
459 |
> |
printf("\t\t\t\tifelse } loop }\n"); |
460 |
> |
printf("\t\t\t{ /nrept nrept 1 sub def reptv }\n"); |
461 |
> |
printf("\t\tifelse put\n"); |
462 |
> |
printf("\t\t} for\n"); |
463 |
> |
printf("\t} stopped {pop pop 0 string} {scanline} ifelse\n"); |
464 |
> |
printf("} bind def\n"); |
465 |
|
} |
466 |
|
|
467 |
|
|
468 |
< |
ra2ps() /* convert Radiance scanlines to 6-bit */ |
468 |
> |
static void |
469 |
> |
ra2ps(void) /* convert Radiance scanlines to 6-bit */ |
470 |
|
{ |
471 |
|
COLR *scanin; |
199 |
– |
register int col = 0; |
200 |
– |
register int c; |
201 |
– |
register int x; |
472 |
|
int y; |
473 |
|
/* allocate scanline */ |
474 |
|
scanin = (COLR *)malloc(xmax*sizeof(COLR)); |
476 |
|
quiterr("out of memory in ra2ps"); |
477 |
|
/* convert image */ |
478 |
|
for (y = ymax-1; y >= 0; y--) { |
479 |
< |
if (freadcolrs(scanin, xmax, stdin) < 0) |
479 |
> |
if (fread2colrs(scanin, xmax, stdin, NCSAMP, WLPART) < 0) |
480 |
|
quiterr("error reading Radiance picture"); |
481 |
< |
normcolrs(scanin, xmax, bradj); /* normalize */ |
482 |
< |
for (x = 0; x < xmax; x++) { |
483 |
< |
if (!(col++ & 0x3f)) |
484 |
< |
putchar('\n'); |
485 |
< |
c = normbright(scanin[x]) + (random()&3); |
486 |
< |
if (c > 255) c = 255; |
487 |
< |
putchar(code[c>>2]); |
488 |
< |
} |
481 |
> |
if ((putprim == Cputprim) | (devgam != 1.)) { |
482 |
> |
if (bradj) /* adjust exposure */ |
483 |
> |
shiftcolrs(scanin, xmax, bradj); |
484 |
> |
colrs_gambs(scanin, xmax); /* gamma compression */ |
485 |
> |
} else |
486 |
> |
normcolrs(scanin, xmax, bradj); |
487 |
> |
if (docolor) { |
488 |
> |
(*putprim)(scanin, RED); |
489 |
> |
(*putprim)(scanin, GRN); |
490 |
> |
(*putprim)(scanin, BLU); |
491 |
> |
} else |
492 |
> |
(*putprim)(scanin, GRY); |
493 |
|
if (ferror(stdout)) |
494 |
|
quiterr("error writing PostScript file"); |
495 |
|
} |
496 |
|
putchar('\n'); |
497 |
|
/* free scanline */ |
498 |
< |
free((char *)scanin); |
498 |
> |
free((void *)scanin); |
499 |
> |
} |
500 |
> |
|
501 |
> |
|
502 |
> |
static void |
503 |
> |
Aputprim( /* put out hex ASCII primary from scanline */ |
504 |
> |
COLR *scn, |
505 |
> |
int pri |
506 |
> |
) |
507 |
> |
{ |
508 |
> |
static char hexdigit[] = "0123456789ABCDEF"; |
509 |
> |
static int col = 0; |
510 |
> |
int x, c; |
511 |
> |
|
512 |
> |
for (x = 0; x < xmax; x++) { |
513 |
> |
if (pri == GRY) |
514 |
> |
c = normbright(scn[x]); |
515 |
> |
else |
516 |
> |
c = scn[x][pri]; |
517 |
> |
if (c > 255) c = 255; |
518 |
> |
putchar(hexdigit[c>>4]); |
519 |
> |
putchar(hexdigit[c&0xf]); |
520 |
> |
if ((col += 2) >= 72) { |
521 |
> |
putchar('\n'); |
522 |
> |
col = 0; |
523 |
> |
} |
524 |
> |
} |
525 |
> |
} |
526 |
> |
|
527 |
> |
|
528 |
> |
static void |
529 |
> |
Bputprim( /* put out binary primary from scanline */ |
530 |
> |
COLR *scn, |
531 |
> |
int pri |
532 |
> |
) |
533 |
> |
{ |
534 |
> |
int x, c; |
535 |
> |
|
536 |
> |
for (x = 0; x < xmax; x++) { |
537 |
> |
if (pri == GRY) |
538 |
> |
c = normbright(scn[x]); |
539 |
> |
else |
540 |
> |
c = scn[x][pri]; |
541 |
> |
if (c > 255) c = 255; |
542 |
> |
putchar(c); |
543 |
> |
} |
544 |
> |
} |
545 |
> |
|
546 |
> |
|
547 |
> |
static void |
548 |
> |
Cputprim( /* put out compressed primary from scanline */ |
549 |
> |
COLR *scn, |
550 |
> |
int pri |
551 |
> |
) |
552 |
> |
{ |
553 |
> |
int c; |
554 |
> |
int x; |
555 |
> |
int lastc, cnt; |
556 |
> |
|
557 |
> |
lastc = -1; cnt = 0; |
558 |
> |
for (x = 0; x < xmax; x++) { |
559 |
> |
if (pri == GRY) |
560 |
> |
c = normbright(scn[x]) + 2; |
561 |
> |
else |
562 |
> |
c = scn[x][pri] + 2; |
563 |
> |
if (c > 255) c = 255; |
564 |
> |
c = code[c>>2]; |
565 |
> |
if (c == lastc && cnt < MAXRUN) |
566 |
> |
cnt++; |
567 |
> |
else { |
568 |
> |
putrle(cnt, lastc); |
569 |
> |
lastc = c; |
570 |
> |
cnt = 1; |
571 |
> |
} |
572 |
> |
} |
573 |
> |
putrle(cnt, lastc); |
574 |
> |
} |
575 |
> |
|
576 |
> |
|
577 |
> |
static void |
578 |
> |
putrle( /* put out cnt of cod */ |
579 |
> |
int cnt, |
580 |
> |
int cod |
581 |
> |
) |
582 |
> |
{ |
583 |
> |
static int col = 0; |
584 |
> |
|
585 |
> |
if (cnt >= MINRUN) { |
586 |
> |
col += 3; |
587 |
> |
putchar(RUNCHR); |
588 |
> |
putchar(RSTRT-MINRUN+cnt); |
589 |
> |
putchar(cod); |
590 |
> |
} else { |
591 |
> |
col += cnt; |
592 |
> |
while (cnt-- > 0) |
593 |
> |
putchar(cod); |
594 |
> |
} |
595 |
> |
if (col >= 72) { |
596 |
> |
putchar('\n'); |
597 |
> |
col = 0; |
598 |
> |
} |
599 |
|
} |