1 |
– |
/* Copyright (c) 1991 Regents of the University of California */ |
2 |
– |
|
1 |
|
#ifndef lint |
2 |
< |
static char SCCSid[] = "$SunId$ LBL"; |
2 |
> |
static const char RCSid[] = "$Id$"; |
3 |
|
#endif |
6 |
– |
|
4 |
|
/* |
5 |
|
* rpict.c - routines and variables for picture generation. |
6 |
+ |
*/ |
7 |
+ |
|
8 |
+ |
/* ==================================================================== |
9 |
+ |
* The Radiance Software License, Version 1.0 |
10 |
|
* |
11 |
< |
* 8/14/85 |
11 |
> |
* Copyright (c) 1990 - 2002 The Regents of the University of California, |
12 |
> |
* through Lawrence Berkeley National Laboratory. All rights reserved. |
13 |
> |
* |
14 |
> |
* Redistribution and use in source and binary forms, with or without |
15 |
> |
* modification, are permitted provided that the following conditions |
16 |
> |
* are met: |
17 |
> |
* |
18 |
> |
* 1. Redistributions of source code must retain the above copyright |
19 |
> |
* notice, this list of conditions and the following disclaimer. |
20 |
> |
* |
21 |
> |
* 2. Redistributions in binary form must reproduce the above copyright |
22 |
> |
* notice, this list of conditions and the following disclaimer in |
23 |
> |
* the documentation and/or other materials provided with the |
24 |
> |
* distribution. |
25 |
> |
* |
26 |
> |
* 3. The end-user documentation included with the redistribution, |
27 |
> |
* if any, must include the following acknowledgment: |
28 |
> |
* "This product includes Radiance software |
29 |
> |
* (http://radsite.lbl.gov/) |
30 |
> |
* developed by the Lawrence Berkeley National Laboratory |
31 |
> |
* (http://www.lbl.gov/)." |
32 |
> |
* Alternately, this acknowledgment may appear in the software itself, |
33 |
> |
* if and wherever such third-party acknowledgments normally appear. |
34 |
> |
* |
35 |
> |
* 4. The names "Radiance," "Lawrence Berkeley National Laboratory" |
36 |
> |
* and "The Regents of the University of California" must |
37 |
> |
* not be used to endorse or promote products derived from this |
38 |
> |
* software without prior written permission. For written |
39 |
> |
* permission, please contact [email protected]. |
40 |
> |
* |
41 |
> |
* 5. Products derived from this software may not be called "Radiance", |
42 |
> |
* nor may "Radiance" appear in their name, without prior written |
43 |
> |
* permission of Lawrence Berkeley National Laboratory. |
44 |
> |
* |
45 |
> |
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
46 |
> |
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
47 |
> |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
48 |
> |
* DISCLAIMED. IN NO EVENT SHALL Lawrence Berkeley National Laboratory OR |
49 |
> |
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
50 |
> |
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
51 |
> |
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
52 |
> |
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
53 |
> |
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
54 |
> |
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
55 |
> |
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
56 |
> |
* SUCH DAMAGE. |
57 |
> |
* ==================================================================== |
58 |
> |
* |
59 |
> |
* This software consists of voluntary contributions made by many |
60 |
> |
* individuals on behalf of Lawrence Berkeley National Laboratory. For more |
61 |
> |
* information on Lawrence Berkeley National Laboratory, please see |
62 |
> |
* <http://www.lbl.gov/>. |
63 |
|
*/ |
64 |
|
|
65 |
|
#include "ray.h" |
66 |
|
|
67 |
+ |
#include <sys/types.h> |
68 |
+ |
|
69 |
+ |
#ifndef NIX |
70 |
|
#ifdef BSD |
71 |
|
#include <sys/time.h> |
72 |
|
#include <sys/resource.h> |
73 |
|
#else |
74 |
< |
#include <signal.h> |
74 |
> |
#include <sys/times.h> |
75 |
> |
#include <unistd.h> |
76 |
|
#endif |
77 |
< |
#include <fcntl.h> |
77 |
> |
#endif |
78 |
|
|
79 |
+ |
extern time_t time(); |
80 |
+ |
|
81 |
+ |
#include <signal.h> |
82 |
+ |
|
83 |
|
#include "view.h" |
84 |
|
|
85 |
|
#include "random.h" |
86 |
|
|
87 |
+ |
#include "paths.h" |
88 |
+ |
|
89 |
+ |
#define RFTEMPLATE "rfXXXXXX" |
90 |
+ |
|
91 |
+ |
#ifndef SIGCONT |
92 |
+ |
#define SIGCONT SIGIO |
93 |
+ |
#endif |
94 |
+ |
|
95 |
+ |
CUBE thescene; /* our scene */ |
96 |
+ |
OBJECT nsceneobjs; /* number of objects in our scene */ |
97 |
+ |
|
98 |
|
int dimlist[MAXDIM]; /* sampling dimensions */ |
99 |
|
int ndims = 0; /* number of sampling dimensions */ |
100 |
|
int samplendx; /* sample index number */ |
101 |
|
|
102 |
+ |
extern void ambnotify(); |
103 |
+ |
void (*addobjnotify[])() = {ambnotify, NULL}; |
104 |
+ |
|
105 |
|
VIEW ourview = STDVIEW; /* view parameters */ |
106 |
|
int hresolu = 512; /* horizontal resolution */ |
107 |
|
int vresolu = 512; /* vertical resolution */ |
108 |
< |
double pixaspect = 1.0; /* pixel aspect ratio */ |
108 |
> |
double pixaspect = 1.0; /* pixel aspect ratio */ |
109 |
|
|
110 |
|
int psample = 4; /* pixel sample size */ |
111 |
< |
double maxdiff = .05; /* max. difference for interpolation */ |
112 |
< |
double dstrpix = 0.67; /* square pixel distribution */ |
111 |
> |
double maxdiff = .05; /* max. difference for interpolation */ |
112 |
> |
double dstrpix = 0.67; /* square pixel distribution */ |
113 |
|
|
114 |
< |
double dstrsrc = 0.0; /* square source distribution */ |
115 |
< |
double shadthresh = .05; /* shadow threshold */ |
116 |
< |
double shadcert = .5; /* shadow certainty */ |
117 |
< |
int directrelay = 0; /* number of source relays */ |
114 |
> |
double mblur = 0.; /* motion blur parameter */ |
115 |
> |
|
116 |
> |
void (*trace)() = NULL; /* trace call */ |
117 |
> |
|
118 |
> |
int do_irrad = 0; /* compute irradiance? */ |
119 |
> |
|
120 |
> |
double dstrsrc = 0.0; /* square source distribution */ |
121 |
> |
double shadthresh = .05; /* shadow threshold */ |
122 |
> |
double shadcert = .5; /* shadow certainty */ |
123 |
> |
int directrelay = 1; /* number of source relays */ |
124 |
|
int vspretest = 512; /* virtual source pretest density */ |
125 |
< |
int directinvis = 0; /* sources invisible? */ |
125 |
> |
int directvis = 1; /* sources visible? */ |
126 |
> |
double srcsizerat = .25; /* maximum ratio source size/dist. */ |
127 |
|
|
128 |
+ |
COLOR cextinction = BLKCOLOR; /* global extinction coefficient */ |
129 |
+ |
COLOR salbedo = BLKCOLOR; /* global scattering albedo */ |
130 |
+ |
double seccg = 0.; /* global scattering eccentricity */ |
131 |
+ |
double ssampdist = 0.; /* scatter sampling distance */ |
132 |
+ |
|
133 |
+ |
double specthresh = .15; /* specular sampling threshold */ |
134 |
+ |
double specjitter = 1.; /* specular sampling jitter */ |
135 |
+ |
|
136 |
+ |
int backvis = 1; /* back face visibility */ |
137 |
+ |
|
138 |
|
int maxdepth = 6; /* maximum recursion depth */ |
139 |
< |
double minweight = 5e-3; /* minimum ray weight */ |
139 |
> |
double minweight = 5e-3; /* minimum ray weight */ |
140 |
|
|
141 |
+ |
char *ambfile = NULL; /* ambient file name */ |
142 |
|
COLOR ambval = BLKCOLOR; /* ambient value */ |
143 |
< |
double ambacc = 0.2; /* ambient accuracy */ |
143 |
> |
int ambvwt = 0; /* initial weight for ambient value */ |
144 |
> |
double ambacc = 0.2; /* ambient accuracy */ |
145 |
|
int ambres = 32; /* ambient resolution */ |
146 |
|
int ambdiv = 128; /* ambient divisions */ |
147 |
|
int ambssamp = 0; /* ambient super-samples */ |
151 |
|
|
152 |
|
int ralrm = 0; /* seconds between reports */ |
153 |
|
|
154 |
< |
double pctdone = 0.0; /* percentage done */ |
154 |
> |
double pctdone = 0.0; /* percentage done */ |
155 |
> |
time_t tlastrept = 0L; /* time at last report */ |
156 |
> |
time_t tstart; /* starting time */ |
157 |
|
|
158 |
< |
long tlastrept = 0L; /* time at last report */ |
158 |
> |
#define MAXDIV 16 /* maximum sample size */ |
159 |
|
|
160 |
< |
extern long time(); |
66 |
< |
extern long tstart; /* starting time */ |
160 |
> |
#define pixjitter() (.5+dstrpix*(.5-frandom())) |
161 |
|
|
162 |
< |
extern long nrays; /* number of rays traced */ |
162 |
> |
int hres, vres; /* resolution for this frame */ |
163 |
|
|
164 |
< |
#define MAXDIV 15 /* maximum sample size */ |
164 |
> |
static VIEW lastview; /* the previous view input */ |
165 |
|
|
166 |
< |
#define pixjitter() (.5+dstrpix*(.5-frandom())) |
166 |
> |
extern char *mktemp(); |
167 |
|
|
168 |
< |
double pixvalue(); |
168 |
> |
void report(); |
169 |
|
|
170 |
+ |
double pixvalue(); |
171 |
|
|
172 |
+ |
#ifdef NIX |
173 |
+ |
#define file_exists(f) (access(f,F_OK)==0) |
174 |
+ |
#else |
175 |
+ |
#include <sys/types.h> |
176 |
+ |
#include <sys/stat.h> |
177 |
+ |
int |
178 |
+ |
file_exists(fname) /* ordinary file exists? */ |
179 |
+ |
char *fname; |
180 |
+ |
{ |
181 |
+ |
struct stat sbuf; |
182 |
+ |
if (stat(fname, &sbuf) < 0) return(0); |
183 |
+ |
return((sbuf.st_mode & S_IFREG) != 0); |
184 |
+ |
} |
185 |
+ |
#endif |
186 |
+ |
|
187 |
+ |
|
188 |
+ |
void |
189 |
|
quit(code) /* quit program */ |
190 |
|
int code; |
191 |
|
{ |
192 |
< |
if (code || ralrm > 0) /* report status */ |
192 |
> |
if (code) /* report status */ |
193 |
|
report(); |
194 |
< |
|
194 |
> |
#ifndef NIX |
195 |
> |
headclean(); /* delete header file */ |
196 |
> |
pfclean(); /* clean up persist files */ |
197 |
> |
#endif |
198 |
|
exit(code); |
199 |
|
} |
200 |
|
|
201 |
|
|
202 |
< |
#ifdef BSD |
202 |
> |
#ifndef NIX |
203 |
> |
void |
204 |
|
report() /* report progress */ |
205 |
|
{ |
206 |
+ |
extern char *myhostname(); |
207 |
+ |
double u, s; |
208 |
+ |
#ifdef BSD |
209 |
|
struct rusage rubuf; |
210 |
< |
double t; |
210 |
> |
#else |
211 |
> |
struct tms tbuf; |
212 |
> |
double period; |
213 |
> |
#endif |
214 |
|
|
215 |
+ |
tlastrept = time((time_t *)NULL); |
216 |
+ |
#ifdef BSD |
217 |
|
getrusage(RUSAGE_SELF, &rubuf); |
218 |
< |
t = (rubuf.ru_utime.tv_usec + rubuf.ru_stime.tv_usec) / 1e6; |
219 |
< |
t += rubuf.ru_utime.tv_sec + rubuf.ru_stime.tv_sec; |
218 |
> |
u = rubuf.ru_utime.tv_sec + rubuf.ru_utime.tv_usec/1e6; |
219 |
> |
s = rubuf.ru_stime.tv_sec + rubuf.ru_stime.tv_usec/1e6; |
220 |
|
getrusage(RUSAGE_CHILDREN, &rubuf); |
221 |
< |
t += (rubuf.ru_utime.tv_usec + rubuf.ru_stime.tv_usec) / 1e6; |
222 |
< |
t += rubuf.ru_utime.tv_sec + rubuf.ru_stime.tv_sec; |
221 |
> |
u += rubuf.ru_utime.tv_sec + rubuf.ru_utime.tv_usec/1e6; |
222 |
> |
s += rubuf.ru_stime.tv_sec + rubuf.ru_stime.tv_usec/1e6; |
223 |
> |
#else |
224 |
> |
times(&tbuf); |
225 |
> |
#ifdef _SC_CLK_TCK |
226 |
> |
period = 1.0 / sysconf(_SC_CLK_TCK); |
227 |
> |
#else |
228 |
> |
period = 1.0 / 60.0; |
229 |
> |
#endif |
230 |
> |
u = ( tbuf.tms_utime + tbuf.tms_cutime ) * period; |
231 |
> |
s = ( tbuf.tms_stime + tbuf.tms_cstime ) * period; |
232 |
> |
#endif |
233 |
|
|
234 |
< |
sprintf(errmsg, "%ld rays, %4.2f%% done after %5.4f CPU hours\n", |
235 |
< |
nrays, pctdone, t/3600.0); |
234 |
> |
sprintf(errmsg, |
235 |
> |
"%lu rays, %4.2f%% after %.3fu %.3fs %.3fr hours on %s\n", |
236 |
> |
nrays, pctdone, u/3600., s/3600., |
237 |
> |
(tlastrept-tstart)/3600., myhostname()); |
238 |
|
eputs(errmsg); |
239 |
< |
tlastrept = time((long *)0); |
239 |
> |
#ifndef BSD |
240 |
> |
signal(SIGCONT, report); |
241 |
> |
#endif |
242 |
|
} |
243 |
|
#else |
244 |
+ |
void |
245 |
|
report() /* report progress */ |
246 |
|
{ |
247 |
< |
signal(SIGALRM, report); |
248 |
< |
tlastrept = time((long *)0); |
110 |
< |
sprintf(errmsg, "%ld rays, %4.2f%% done after %5.4f hours\n", |
247 |
> |
tlastrept = time((time_t *)NULL); |
248 |
> |
sprintf(errmsg, "%lu rays, %4.2f%% after %5.4f hours\n", |
249 |
|
nrays, pctdone, (tlastrept-tstart)/3600.0); |
250 |
|
eputs(errmsg); |
251 |
|
} |
252 |
|
#endif |
253 |
|
|
254 |
|
|
255 |
+ |
void |
256 |
+ |
rpict(seq, pout, zout, prvr) /* generate image(s) */ |
257 |
+ |
int seq; |
258 |
+ |
char *pout, *zout, *prvr; |
259 |
+ |
/* |
260 |
+ |
* If seq is greater than zero, then we will render a sequence of |
261 |
+ |
* images based on view parameter strings read from the standard input. |
262 |
+ |
* If pout is NULL, then all images will be sent to the standard ouput. |
263 |
+ |
* If seq is greater than zero and prvr is an integer, then it is the |
264 |
+ |
* frame number at which rendering should begin. Preceeding view parameter |
265 |
+ |
* strings will be skipped in the input. |
266 |
+ |
* If pout and prvr are the same, prvr is renamed to avoid overwriting. |
267 |
+ |
* Note that pout and zout should contain %d format specifications for |
268 |
+ |
* sequenced file naming. |
269 |
+ |
*/ |
270 |
+ |
{ |
271 |
+ |
extern char *rindex(), *strncpy(), *strcat(), *strcpy(); |
272 |
+ |
char fbuf[128], fbuf2[128]; |
273 |
+ |
int npicts; |
274 |
+ |
register char *cp; |
275 |
+ |
RESOLU rs; |
276 |
+ |
double pa; |
277 |
+ |
/* check sampling */ |
278 |
+ |
if (psample < 1) |
279 |
+ |
psample = 1; |
280 |
+ |
else if (psample > MAXDIV) { |
281 |
+ |
sprintf(errmsg, "pixel sampling reduced from %d to %d", |
282 |
+ |
psample, MAXDIV); |
283 |
+ |
error(WARNING, errmsg); |
284 |
+ |
psample = MAXDIV; |
285 |
+ |
} |
286 |
+ |
/* get starting frame */ |
287 |
+ |
if (seq <= 0) |
288 |
+ |
seq = 0; |
289 |
+ |
else if (prvr != NULL && isint(prvr)) { |
290 |
+ |
register int rn; /* skip to specified view */ |
291 |
+ |
if ((rn = atoi(prvr)) < seq) |
292 |
+ |
error(USER, "recover frame less than start frame"); |
293 |
+ |
if (pout == NULL) |
294 |
+ |
error(USER, "missing output file specification"); |
295 |
+ |
for ( ; seq < rn; seq++) |
296 |
+ |
if (nextview(stdin) == EOF) |
297 |
+ |
error(USER, "unexpected EOF on view input"); |
298 |
+ |
setview(&ourview); |
299 |
+ |
prvr = fbuf; /* mark for renaming */ |
300 |
+ |
} |
301 |
+ |
if (pout != NULL & prvr != NULL) { |
302 |
+ |
sprintf(fbuf, pout, seq); |
303 |
+ |
if (!strcmp(prvr, fbuf)) { /* rename */ |
304 |
+ |
strcpy(fbuf2, fbuf); |
305 |
+ |
for (cp = fbuf2; *cp; cp++) |
306 |
+ |
; |
307 |
+ |
while (cp > fbuf2 && !ISDIRSEP(cp[-1])) |
308 |
+ |
cp--; |
309 |
+ |
strcpy(cp, RFTEMPLATE); |
310 |
+ |
prvr = mktemp(fbuf2); |
311 |
+ |
if (rename(fbuf, prvr) < 0) |
312 |
+ |
if (errno == ENOENT) { /* ghost file */ |
313 |
+ |
sprintf(errmsg, |
314 |
+ |
"new output file \"%s\"", |
315 |
+ |
fbuf); |
316 |
+ |
error(WARNING, errmsg); |
317 |
+ |
prvr = NULL; |
318 |
+ |
} else { /* serious error */ |
319 |
+ |
sprintf(errmsg, |
320 |
+ |
"cannot rename \"%s\" to \"%s\"", |
321 |
+ |
fbuf, prvr); |
322 |
+ |
error(SYSTEM, errmsg); |
323 |
+ |
} |
324 |
+ |
} |
325 |
+ |
} |
326 |
+ |
npicts = 0; /* render sequence */ |
327 |
+ |
do { |
328 |
+ |
if (seq && nextview(stdin) == EOF) |
329 |
+ |
break; |
330 |
+ |
pctdone = 0.0; |
331 |
+ |
if (pout != NULL) { |
332 |
+ |
sprintf(fbuf, pout, seq); |
333 |
+ |
if (file_exists(fbuf)) { |
334 |
+ |
if (prvr != NULL || !strcmp(fbuf, pout)) { |
335 |
+ |
sprintf(errmsg, |
336 |
+ |
"output file \"%s\" exists", |
337 |
+ |
fbuf); |
338 |
+ |
error(USER, errmsg); |
339 |
+ |
} |
340 |
+ |
setview(&ourview); |
341 |
+ |
continue; /* don't clobber */ |
342 |
+ |
} |
343 |
+ |
if (freopen(fbuf, "w", stdout) == NULL) { |
344 |
+ |
sprintf(errmsg, |
345 |
+ |
"cannot open output file \"%s\"", fbuf); |
346 |
+ |
error(SYSTEM, errmsg); |
347 |
+ |
} |
348 |
+ |
#ifdef MSDOS |
349 |
+ |
setmode(fileno(stdout), O_BINARY); |
350 |
+ |
#endif |
351 |
+ |
dupheader(); |
352 |
+ |
} |
353 |
+ |
hres = hresolu; vres = vresolu; pa = pixaspect; |
354 |
+ |
if (prvr != NULL) |
355 |
+ |
if (viewfile(prvr, &ourview, &rs) <= 0 |
356 |
+ |
|| rs.rt != PIXSTANDARD) { |
357 |
+ |
sprintf(errmsg, |
358 |
+ |
"cannot recover view parameters from \"%s\"", prvr); |
359 |
+ |
error(WARNING, errmsg); |
360 |
+ |
} else { |
361 |
+ |
pa = 0.0; |
362 |
+ |
hres = scanlen(&rs); |
363 |
+ |
vres = numscans(&rs); |
364 |
+ |
} |
365 |
+ |
if ((cp = setview(&ourview)) != NULL) |
366 |
+ |
error(USER, cp); |
367 |
+ |
normaspect(viewaspect(&ourview), &pa, &hres, &vres); |
368 |
+ |
if (seq) { |
369 |
+ |
if (ralrm > 0) { |
370 |
+ |
fprintf(stderr, "FRAME %d:", seq); |
371 |
+ |
fprintview(&ourview, stderr); |
372 |
+ |
putc('\n', stderr); |
373 |
+ |
fflush(stderr); |
374 |
+ |
} |
375 |
+ |
printf("FRAME=%d\n", seq); |
376 |
+ |
} |
377 |
+ |
fputs(VIEWSTR, stdout); |
378 |
+ |
fprintview(&ourview, stdout); |
379 |
+ |
putchar('\n'); |
380 |
+ |
if (pa < .99 || pa > 1.01) |
381 |
+ |
fputaspect(pa, stdout); |
382 |
+ |
fputformat(COLRFMT, stdout); |
383 |
+ |
putchar('\n'); |
384 |
+ |
if (zout != NULL) |
385 |
+ |
sprintf(cp=fbuf, zout, seq); |
386 |
+ |
else |
387 |
+ |
cp = NULL; |
388 |
+ |
render(cp, prvr); |
389 |
+ |
prvr = NULL; |
390 |
+ |
npicts++; |
391 |
+ |
} while (seq++); |
392 |
+ |
/* check that we did something */ |
393 |
+ |
if (npicts == 0) |
394 |
+ |
error(WARNING, "no output produced"); |
395 |
+ |
} |
396 |
+ |
|
397 |
+ |
|
398 |
+ |
nextview(fp) /* get next view from fp */ |
399 |
+ |
FILE *fp; |
400 |
+ |
{ |
401 |
+ |
char linebuf[256]; |
402 |
+ |
|
403 |
+ |
copystruct(&lastview, &ourview); |
404 |
+ |
while (fgets(linebuf, sizeof(linebuf), fp) != NULL) |
405 |
+ |
if (isview(linebuf) && sscanview(&ourview, linebuf) > 0) |
406 |
+ |
return(0); |
407 |
+ |
return(EOF); |
408 |
+ |
} |
409 |
+ |
|
410 |
+ |
|
411 |
|
render(zfile, oldfile) /* render the scene */ |
412 |
|
char *zfile, *oldfile; |
413 |
|
{ |
120 |
– |
extern long lseek(); |
414 |
|
COLOR *scanbar[MAXDIV+1]; /* scanline arrays of pixel values */ |
415 |
|
float *zbar[MAXDIV+1]; /* z values */ |
416 |
+ |
char *sampdens; /* previous sample density */ |
417 |
|
int ypos; /* current scanline */ |
418 |
|
int ystep; /* current y step size */ |
419 |
+ |
int hstep; /* h step size */ |
420 |
|
int zfd; |
421 |
|
COLOR *colptr; |
422 |
|
float *zptr; |
423 |
|
register int i; |
424 |
< |
/* check sampling */ |
425 |
< |
if (psample < 1) |
426 |
< |
psample = 1; |
427 |
< |
else if (psample > MAXDIV) { |
428 |
< |
sprintf(errmsg, "pixel sampling reduced from %d to %d", |
134 |
< |
psample, MAXDIV); |
135 |
< |
error(WARNING, errmsg); |
136 |
< |
psample = MAXDIV; |
424 |
> |
/* check for empty image */ |
425 |
> |
if (hres <= 0 || vres <= 0) { |
426 |
> |
error(WARNING, "empty output picture"); |
427 |
> |
fprtresolu(0, 0, stdout); |
428 |
> |
return; |
429 |
|
} |
430 |
|
/* allocate scanlines */ |
431 |
|
for (i = 0; i <= psample; i++) { |
432 |
< |
scanbar[i] = (COLOR *)malloc(hresolu*sizeof(COLOR)); |
432 |
> |
scanbar[i] = (COLOR *)malloc(hres*sizeof(COLOR)); |
433 |
|
if (scanbar[i] == NULL) |
434 |
|
goto memerr; |
435 |
|
} |
436 |
< |
/* open z file */ |
436 |
> |
hstep = (psample*140+49)/99; /* quincunx sampling */ |
437 |
> |
ystep = (psample*99+70)/140; |
438 |
> |
if (hstep > 2) { |
439 |
> |
i = hres/hstep + 2; |
440 |
> |
if ((sampdens = (char *)malloc(i)) == NULL) |
441 |
> |
goto memerr; |
442 |
> |
while (i--) |
443 |
> |
sampdens[i] = hstep; |
444 |
> |
} else |
445 |
> |
sampdens = NULL; |
446 |
> |
/* open z-file */ |
447 |
|
if (zfile != NULL) { |
448 |
|
if ((zfd = open(zfile, O_WRONLY|O_CREAT, 0666)) == -1) { |
449 |
< |
sprintf(errmsg, "cannot open z file \"%s\"", zfile); |
449 |
> |
sprintf(errmsg, "cannot open z-file \"%s\"", zfile); |
450 |
|
error(SYSTEM, errmsg); |
451 |
|
} |
452 |
+ |
#ifdef MSDOS |
453 |
+ |
setmode(zfd, O_BINARY); |
454 |
+ |
#endif |
455 |
|
for (i = 0; i <= psample; i++) { |
456 |
< |
zbar[i] = (float *)malloc(hresolu*sizeof(float)); |
456 |
> |
zbar[i] = (float *)malloc(hres*sizeof(float)); |
457 |
|
if (zbar[i] == NULL) |
458 |
|
goto memerr; |
459 |
|
} |
463 |
|
zbar[i] = NULL; |
464 |
|
} |
465 |
|
/* write out boundaries */ |
466 |
< |
fputresolu(YMAJOR|YDECR, hresolu, vresolu, stdout); |
466 |
> |
fprtresolu(hres, vres, stdout); |
467 |
|
/* recover file and compute first */ |
468 |
|
i = salvage(oldfile); |
469 |
+ |
if (i >= vres) |
470 |
+ |
goto alldone; |
471 |
|
if (zfd != -1 && i > 0 && |
472 |
< |
lseek(zfd, (long)i*hresolu*sizeof(float), 0) == -1) |
473 |
< |
error(SYSTEM, "z file seek error in render"); |
474 |
< |
pctdone = 100.0*i/vresolu; |
472 |
> |
lseek(zfd, (off_t)i*hres*sizeof(float), 0) < 0) |
473 |
> |
error(SYSTEM, "z-file seek error in render"); |
474 |
> |
pctdone = 100.0*i/vres; |
475 |
|
if (ralrm > 0) /* report init stats */ |
476 |
|
report(); |
477 |
< |
#ifndef BSD |
477 |
> |
#ifndef BSD |
478 |
|
else |
479 |
|
#endif |
480 |
< |
signal(SIGALRM, report); |
481 |
< |
ypos = vresolu-1 - i; |
482 |
< |
fillscanline(scanbar[0], zbar[0], hresolu, ypos, psample); |
483 |
< |
ystep = psample; |
480 |
> |
signal(SIGCONT, report); |
481 |
> |
ypos = vres-1 - i; /* initialize sampling */ |
482 |
> |
if (directvis) |
483 |
> |
init_drawsources(psample); |
484 |
> |
fillscanline(scanbar[0], zbar[0], sampdens, hres, ypos, hstep); |
485 |
|
/* compute scanlines */ |
486 |
|
for (ypos -= ystep; ypos > -ystep; ypos -= ystep) { |
487 |
|
/* bottom adjust? */ |
496 |
|
zbar[ystep] = zbar[0]; |
497 |
|
zbar[0] = zptr; |
498 |
|
/* fill base line */ |
499 |
< |
fillscanline(scanbar[0], zbar[0], hresolu, ypos, psample); |
499 |
> |
fillscanline(scanbar[0], zbar[0], sampdens, |
500 |
> |
hres, ypos, hstep); |
501 |
|
/* fill bar */ |
502 |
< |
fillscanbar(scanbar, zbar, hresolu, ypos, ystep); |
502 |
> |
fillscanbar(scanbar, zbar, hres, ypos, ystep); |
503 |
> |
if (directvis) /* add bitty sources */ |
504 |
> |
drawsources(scanbar, zbar, 0, hres, ypos, ystep); |
505 |
|
/* write it out */ |
506 |
< |
#ifndef BSD |
507 |
< |
signal(SIGALRM, SIG_IGN); /* don't interrupt writes */ |
506 |
> |
#ifndef BSD |
507 |
> |
signal(SIGCONT, SIG_IGN); /* don't interrupt writes */ |
508 |
|
#endif |
509 |
|
for (i = ystep; i > 0; i--) { |
510 |
|
if (zfd != -1 && write(zfd, (char *)zbar[i], |
511 |
< |
hresolu*sizeof(float)) |
512 |
< |
< hresolu*sizeof(float)) |
511 |
> |
hres*sizeof(float)) |
512 |
> |
< hres*sizeof(float)) |
513 |
|
goto writerr; |
514 |
< |
if (fwritescan(scanbar[i], hresolu, stdout) < 0) |
514 |
> |
if (fwritescan(scanbar[i], hres, stdout) < 0) |
515 |
|
goto writerr; |
516 |
|
} |
517 |
|
if (fflush(stdout) == EOF) |
518 |
|
goto writerr; |
519 |
|
/* record progress */ |
520 |
< |
pctdone = 100.0*(vresolu-1-ypos)/vresolu; |
521 |
< |
if (ralrm > 0 && time((long *)0) >= tlastrept+ralrm) |
520 |
> |
pctdone = 100.0*(vres-1-ypos)/vres; |
521 |
> |
if (ralrm > 0 && time((time_t *)NULL) >= tlastrept+ralrm) |
522 |
|
report(); |
523 |
< |
#ifndef BSD |
523 |
> |
#ifndef BSD |
524 |
|
else |
525 |
< |
signal(SIGALRM, report); |
525 |
> |
signal(SIGCONT, report); |
526 |
|
#endif |
527 |
|
} |
528 |
|
/* clean up */ |
529 |
+ |
signal(SIGCONT, SIG_IGN); |
530 |
+ |
if (zfd != -1 && write(zfd, (char *)zbar[0], hres*sizeof(float)) |
531 |
+ |
< hres*sizeof(float)) |
532 |
+ |
goto writerr; |
533 |
+ |
fwritescan(scanbar[0], hres, stdout); |
534 |
+ |
if (fflush(stdout) == EOF) |
535 |
+ |
goto writerr; |
536 |
+ |
alldone: |
537 |
|
if (zfd != -1) { |
219 |
– |
if (write(zfd, (char *)zbar[0], hresolu*sizeof(float)) |
220 |
– |
< hresolu*sizeof(float)) |
221 |
– |
goto writerr; |
538 |
|
if (close(zfd) == -1) |
539 |
|
goto writerr; |
540 |
|
for (i = 0; i <= psample; i++) |
541 |
< |
free((char *)zbar[i]); |
541 |
> |
free((void *)zbar[i]); |
542 |
|
} |
227 |
– |
fwritescan(scanbar[0], hresolu, stdout); |
228 |
– |
if (fflush(stdout) == EOF) |
229 |
– |
goto writerr; |
543 |
|
for (i = 0; i <= psample; i++) |
544 |
< |
free((char *)scanbar[i]); |
544 |
> |
free((void *)scanbar[i]); |
545 |
> |
if (sampdens != NULL) |
546 |
> |
free(sampdens); |
547 |
|
pctdone = 100.0; |
548 |
+ |
if (ralrm > 0) |
549 |
+ |
report(); |
550 |
+ |
signal(SIGCONT, SIG_DFL); |
551 |
|
return; |
552 |
|
writerr: |
553 |
|
error(SYSTEM, "write error in render"); |
556 |
|
} |
557 |
|
|
558 |
|
|
559 |
< |
fillscanline(scanline, zline, xres, y, xstep) /* fill scan line at y */ |
560 |
< |
register COLOR *scanline; |
561 |
< |
register float *zline; |
559 |
> |
fillscanline(scanline, zline, sd, xres, y, xstep) /* fill scan at y */ |
560 |
> |
register COLOR *scanline; |
561 |
> |
register float *zline; |
562 |
> |
register char *sd; |
563 |
|
int xres, y, xstep; |
564 |
|
{ |
565 |
< |
int b = xstep; |
566 |
< |
double z; |
565 |
> |
static int nc = 0; /* number of calls */ |
566 |
> |
int bl = xstep, b = xstep; |
567 |
> |
double z; |
568 |
|
register int i; |
569 |
< |
|
569 |
> |
|
570 |
|
z = pixvalue(scanline[0], 0, y); |
571 |
|
if (zline) zline[0] = z; |
572 |
< |
|
573 |
< |
for (i = xstep; i < xres-1+xstep; i += xstep) { |
572 |
> |
/* zig-zag start for quincunx pattern */ |
573 |
> |
for (i = ++nc & 1 ? xstep : xstep/2; i < xres-1+xstep; i += xstep) { |
574 |
|
if (i >= xres) { |
575 |
|
xstep += xres-1-i; |
576 |
|
i = xres-1; |
577 |
|
} |
578 |
|
z = pixvalue(scanline[i], i, y); |
579 |
|
if (zline) zline[i] = z; |
580 |
< |
|
581 |
< |
b = fillsample(scanline+i-xstep, zline ? zline+i-xstep : NULL, |
582 |
< |
i-xstep, y, xstep, 0, b/2); |
580 |
> |
if (sd) b = sd[0] > sd[1] ? sd[0] : sd[1]; |
581 |
> |
if (i <= xstep) |
582 |
> |
b = fillsample(scanline, zline, 0, y, i, 0, b/2); |
583 |
> |
else |
584 |
> |
b = fillsample(scanline+i-xstep, |
585 |
> |
zline ? zline+i-xstep : (float *)NULL, |
586 |
> |
i-xstep, y, xstep, 0, b/2); |
587 |
> |
if (sd) *sd++ = nc & 1 ? bl : b; |
588 |
> |
bl = b; |
589 |
|
} |
590 |
+ |
if (sd && nc & 1) *sd = bl; |
591 |
|
} |
592 |
|
|
593 |
|
|
594 |
|
fillscanbar(scanbar, zbar, xres, y, ysize) /* fill interior */ |
595 |
< |
register COLOR *scanbar[]; |
596 |
< |
register float *zbar[]; |
595 |
> |
register COLOR *scanbar[]; |
596 |
> |
register float *zbar[]; |
597 |
|
int xres, y, ysize; |
598 |
|
{ |
599 |
|
COLOR vline[MAXDIV+1]; |
600 |
|
float zline[MAXDIV+1]; |
601 |
|
int b = ysize; |
602 |
|
register int i, j; |
603 |
< |
|
603 |
> |
|
604 |
|
for (i = 0; i < xres; i++) { |
278 |
– |
|
605 |
|
copycolor(vline[0], scanbar[0][i]); |
606 |
|
copycolor(vline[ysize], scanbar[ysize][i]); |
607 |
|
if (zbar[0]) { |
608 |
|
zline[0] = zbar[0][i]; |
609 |
|
zline[ysize] = zbar[ysize][i]; |
610 |
|
} |
611 |
< |
|
286 |
< |
b = fillsample(vline, zbar[0] ? zline : NULL, |
611 |
> |
b = fillsample(vline, zbar[0] ? zline : (float *)NULL, |
612 |
|
i, y, 0, ysize, b/2); |
613 |
< |
|
613 |
> |
|
614 |
|
for (j = 1; j < ysize; j++) |
615 |
|
copycolor(scanbar[j][i], vline[j]); |
616 |
|
if (zbar[0]) |
621 |
|
|
622 |
|
|
623 |
|
int |
624 |
< |
fillsample(colline, zline, x, y, xlen, ylen, b) /* fill interior points */ |
625 |
< |
register COLOR *colline; |
626 |
< |
register float *zline; |
624 |
> |
fillsample(colline, zline, x, y, xlen, ylen, b) /* fill interior points */ |
625 |
> |
register COLOR *colline; |
626 |
> |
register float *zline; |
627 |
|
int x, y; |
628 |
|
int xlen, ylen; |
629 |
|
int b; |
630 |
|
{ |
631 |
< |
extern double fabs(); |
632 |
< |
double ratio; |
308 |
< |
double z; |
631 |
> |
double ratio; |
632 |
> |
double z; |
633 |
|
COLOR ctmp; |
634 |
|
int ncut; |
635 |
|
register int len; |
636 |
< |
|
636 |
> |
|
637 |
|
if (xlen > 0) /* x or y length is zero */ |
638 |
|
len = xlen; |
639 |
|
else |
640 |
|
len = ylen; |
641 |
< |
|
641 |
> |
|
642 |
|
if (len <= 1) /* limit recursion */ |
643 |
|
return(0); |
644 |
< |
|
645 |
< |
if (b > 0 |
646 |
< |
|| (zline && 2.*fabs(zline[0]-zline[len]) > maxdiff*(zline[0]+zline[len])) |
644 |
> |
|
645 |
> |
if (b > 0 || |
646 |
> |
(zline && 2.*fabs(zline[0]-zline[len]) > maxdiff*(zline[0]+zline[len])) |
647 |
|
|| bigdiff(colline[0], colline[len], maxdiff)) { |
648 |
< |
|
648 |
> |
|
649 |
|
z = pixvalue(colline[len>>1], x + (xlen>>1), y + (ylen>>1)); |
650 |
|
if (zline) zline[len>>1] = z; |
651 |
|
ncut = 1; |
328 |
– |
|
652 |
|
} else { /* interpolate */ |
330 |
– |
|
653 |
|
copycolor(colline[len>>1], colline[len]); |
654 |
|
ratio = (double)(len>>1) / len; |
655 |
|
scalecolor(colline[len>>1], ratio); |
663 |
|
} |
664 |
|
/* recurse */ |
665 |
|
ncut += fillsample(colline, zline, x, y, xlen>>1, ylen>>1, (b-1)/2); |
666 |
< |
|
667 |
< |
ncut += fillsample(colline+(len>>1), zline ? zline+(len>>1) : NULL, |
666 |
> |
|
667 |
> |
ncut += fillsample(colline+(len>>1), |
668 |
> |
zline ? zline+(len>>1) : (float *)NULL, |
669 |
|
x+(xlen>>1), y+(ylen>>1), |
670 |
|
xlen-(xlen>>1), ylen-(ylen>>1), b/2); |
671 |
|
|
678 |
|
COLOR col; /* returned color */ |
679 |
|
int x, y; /* pixel position */ |
680 |
|
{ |
681 |
< |
static RAY thisray; |
682 |
< |
|
683 |
< |
if (viewray(thisray.rorg, thisray.rdir, &ourview, |
684 |
< |
(x+pixjitter())/hresolu, (y+pixjitter())/vresolu) < 0) { |
681 |
> |
RAY thisray; |
682 |
> |
FVECT lorg, ldir; |
683 |
> |
double hpos, vpos, lmax, d; |
684 |
> |
/* compute view ray */ |
685 |
> |
hpos = (x+pixjitter())/hres; |
686 |
> |
vpos = (y+pixjitter())/vres; |
687 |
> |
if ((thisray.rmax = viewray(thisray.rorg, thisray.rdir, |
688 |
> |
&ourview, hpos, vpos)) < -FTINY) { |
689 |
|
setcolor(col, 0.0, 0.0, 0.0); |
690 |
|
return(0.0); |
691 |
|
} |
692 |
|
|
693 |
< |
rayorigin(&thisray, NULL, PRIMARY, 1.0); |
693 |
> |
samplendx = pixnumber(x,y,hres,vres); /* set pixel index */ |
694 |
|
|
695 |
< |
samplendx = pixnumber(x,y,hresolu,vresolu); /* set pixel index */ |
695 |
> |
/* optional motion blur */ |
696 |
> |
if (lastview.type && mblur > FTINY && (lmax = viewray(lorg, ldir, |
697 |
> |
&lastview, hpos, vpos)) >= -FTINY) { |
698 |
> |
register int i; |
699 |
> |
register double d = mblur*(.5-urand(281+samplendx)); |
700 |
|
|
701 |
+ |
thisray.rmax = (1.-d)*thisray.rmax + d*lmax; |
702 |
+ |
for (i = 3; i--; ) { |
703 |
+ |
thisray.rorg[i] = (1.-d)*thisray.rorg[i] + d*lorg[i]; |
704 |
+ |
thisray.rdir[i] = (1.-d)*thisray.rdir[i] + d*ldir[i]; |
705 |
+ |
} |
706 |
+ |
if (normalize(thisray.rdir) == 0.0) |
707 |
+ |
return(0.0); |
708 |
+ |
} |
709 |
+ |
|
710 |
+ |
rayorigin(&thisray, NULL, PRIMARY, 1.0); |
711 |
+ |
|
712 |
|
rayvalue(&thisray); /* trace ray */ |
713 |
|
|
714 |
|
copycolor(col, thisray.rcol); /* return color */ |
715 |
< |
|
715 |
> |
|
716 |
|
return(thisray.rt); /* return distance */ |
717 |
|
} |
718 |
|
|
726 |
|
int x, y; |
727 |
|
|
728 |
|
if (oldfile == NULL) |
729 |
< |
return(0); |
730 |
< |
|
729 |
> |
goto gotzip; |
730 |
> |
|
731 |
|
if ((fp = fopen(oldfile, "r")) == NULL) { |
732 |
|
sprintf(errmsg, "cannot open recover file \"%s\"", oldfile); |
733 |
|
error(WARNING, errmsg); |
734 |
< |
return(0); |
734 |
> |
goto gotzip; |
735 |
|
} |
736 |
+ |
#ifdef MSDOS |
737 |
+ |
setmode(fileno(fp), O_BINARY); |
738 |
+ |
#endif |
739 |
|
/* discard header */ |
740 |
< |
getheader(fp, NULL); |
740 |
> |
getheader(fp, NULL, NULL); |
741 |
|
/* get picture size */ |
742 |
< |
if (fgetresolu(&x, &y, fp) != (YMAJOR|YDECR)) { |
743 |
< |
sprintf(errmsg, "bad recover file \"%s\"", oldfile); |
742 |
> |
if (!fscnresolu(&x, &y, fp)) { |
743 |
> |
sprintf(errmsg, "bad recover file \"%s\" - not removed", |
744 |
> |
oldfile); |
745 |
|
error(WARNING, errmsg); |
746 |
|
fclose(fp); |
747 |
< |
return(0); |
747 |
> |
goto gotzip; |
748 |
|
} |
749 |
|
|
750 |
< |
if (x != hresolu || y != vresolu) { |
750 |
> |
if (x != hres || y != vres) { |
751 |
|
sprintf(errmsg, "resolution mismatch in recover file \"%s\"", |
752 |
|
oldfile); |
753 |
|
error(USER, errmsg); |
754 |
|
} |
755 |
|
|
756 |
< |
scanline = (COLR *)malloc(hresolu*sizeof(COLR)); |
756 |
> |
scanline = (COLR *)malloc(hres*sizeof(COLR)); |
757 |
|
if (scanline == NULL) |
758 |
|
error(SYSTEM, "out of memory in salvage"); |
759 |
< |
for (y = 0; y < vresolu; y++) { |
760 |
< |
if (freadcolrs(scanline, hresolu, fp) < 0) |
759 |
> |
for (y = 0; y < vres; y++) { |
760 |
> |
if (freadcolrs(scanline, hres, fp) < 0) |
761 |
|
break; |
762 |
< |
if (fwritecolrs(scanline, hresolu, stdout) < 0) |
762 |
> |
if (fwritecolrs(scanline, hres, stdout) < 0) |
763 |
|
goto writerr; |
764 |
|
} |
765 |
|
if (fflush(stdout) == EOF) |
766 |
|
goto writerr; |
767 |
< |
free((char *)scanline); |
767 |
> |
free((void *)scanline); |
768 |
|
fclose(fp); |
769 |
|
unlink(oldfile); |
770 |
|
return(y); |
771 |
+ |
gotzip: |
772 |
+ |
if (fflush(stdout) == EOF) |
773 |
+ |
error(SYSTEM, "error writing picture header"); |
774 |
+ |
return(0); |
775 |
|
writerr: |
776 |
< |
error(SYSTEM, "write error in salvage"); |
776 |
> |
sprintf(errmsg, "write error during recovery of \"%s\"", oldfile); |
777 |
> |
error(SYSTEM, errmsg); |
778 |
|
} |
779 |
|
|
780 |
|
|