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/* Copyright (c) 1986 Regents of the University of California */ |
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/* Copyright (c) 1996 Regents of the University of California */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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|
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/* |
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* rpict.c - routines and variables for picture generation. |
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– |
* |
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– |
* 8/14/85 |
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*/ |
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#include "ray.h" |
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|
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#include <sys/types.h> |
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|
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#ifndef NIX |
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#ifdef BSD |
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#include <sys/time.h> |
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#include <sys/resource.h> |
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#else |
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#include <sys/times.h> |
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#include <unistd.h> |
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#endif |
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#endif |
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|
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extern time_t time(); |
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|
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#include <signal.h> |
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|
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#include "view.h" |
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|
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#include "resolu.h" |
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|
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#include "random.h" |
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|
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VIEW ourview = STDVIEW(512); /* view parameters */ |
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#include "paths.h" |
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|
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#define RFTEMPLATE "rfXXXXXX" |
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|
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#ifndef SIGCONT |
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#define SIGCONT SIGIO |
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#endif |
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|
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int dimlist[MAXDIM]; /* sampling dimensions */ |
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int ndims = 0; /* number of sampling dimensions */ |
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int samplendx; /* sample index number */ |
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|
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VIEW ourview = STDVIEW; /* view parameters */ |
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int hresolu = 512; /* horizontal resolution */ |
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int vresolu = 512; /* vertical resolution */ |
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double pixaspect = 1.0; /* pixel aspect ratio */ |
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|
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int psample = 4; /* pixel sample size */ |
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double maxdiff = .05; /* max. difference for interpolation */ |
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double dstrpix = 0.67; /* square pixel distribution */ |
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> |
double maxdiff = .05; /* max. difference for interpolation */ |
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double dstrpix = 0.67; /* square pixel distribution */ |
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|
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double dstrsrc = 0.0; /* square source distribution */ |
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double shadthresh = .05; /* shadow threshold */ |
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double mblur = 0.; /* motion blur parameter */ |
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|
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double dstrsrc = 0.0; /* square source distribution */ |
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double shadthresh = .05; /* shadow threshold */ |
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double shadcert = .5; /* shadow certainty */ |
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int directrelay = 1; /* number of source relays */ |
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int vspretest = 512; /* virtual source pretest density */ |
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int directvis = 1; /* sources visible? */ |
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double srcsizerat = .25; /* maximum ratio source size/dist. */ |
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|
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COLOR cextinction = BLKCOLOR; /* global extinction coefficient */ |
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COLOR salbedo = BLKCOLOR; /* global scattering albedo */ |
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double seccg = 0.; /* global scattering eccentricity */ |
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double ssampdist = 0.; /* scatter sampling distance */ |
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|
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double specthresh = .15; /* specular sampling threshold */ |
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double specjitter = 1.; /* specular sampling jitter */ |
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|
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int backvis = 1; /* back face visibility */ |
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|
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int maxdepth = 6; /* maximum recursion depth */ |
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double minweight = 5e-3; /* minimum ray weight */ |
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double minweight = 5e-3; /* minimum ray weight */ |
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|
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COLOR ambval = BLKCOLOR; /* ambient value */ |
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double ambacc = 0.2; /* ambient accuracy */ |
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int ambres = 128; /* ambient resolution */ |
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int ambvwt = 0; /* initial weight for ambient value */ |
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double ambacc = 0.2; /* ambient accuracy */ |
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int ambres = 32; /* ambient resolution */ |
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int ambdiv = 128; /* ambient divisions */ |
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int ambssamp = 0; /* ambient super-samples */ |
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int ambounce = 0; /* ambient bounces */ |
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char *amblist[128]; /* ambient include/exclude list */ |
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int ambincl = -1; /* include == 1, exclude == 0 */ |
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|
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#ifdef MSDOS |
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int ralrm = 60; /* seconds between reports */ |
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#else |
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int ralrm = 0; /* seconds between reports */ |
93 |
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#endif |
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|
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double pctdone = 0.0; /* percentage done */ |
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double pctdone = 0.0; /* percentage done */ |
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|
97 |
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extern long nrays; /* number of rays traced */ |
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time_t tlastrept = 0L; /* time at last report */ |
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|
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#define MAXDIV 32 /* maximum sample size */ |
99 |
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extern time_t tstart; /* starting time */ |
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|
101 |
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#define pixjitter() (.5+dstrpix*(.5-frandom())) |
101 |
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extern unsigned long nrays; /* number of rays traced */ |
102 |
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|
103 |
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#define MAXDIV 16 /* maximum sample size */ |
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|
105 |
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#define pixjitter() (.5+dstrpix*(.5-frandom())) |
106 |
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|
107 |
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int hres, vres; /* resolution for this frame */ |
108 |
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|
109 |
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static VIEW lastview; /* the previous view input */ |
110 |
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|
111 |
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extern char *mktemp(); |
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|
113 |
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double pixvalue(); |
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|
115 |
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#ifdef NIX |
116 |
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#define file_exists(f) (access(f,F_OK)==0) |
117 |
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#else |
118 |
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#include <sys/types.h> |
119 |
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#include <sys/stat.h> |
120 |
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int |
121 |
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file_exists(fname) /* ordinary file exists? */ |
122 |
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char *fname; |
123 |
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{ |
124 |
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struct stat sbuf; |
125 |
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if (stat(fname, &sbuf) < 0) return(0); |
126 |
+ |
return((sbuf.st_mode & S_IFREG) != 0); |
127 |
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} |
128 |
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#endif |
129 |
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|
130 |
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|
131 |
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quit(code) /* quit program */ |
132 |
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int code; |
133 |
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{ |
134 |
< |
if (code || ralrm > 0) /* report status */ |
134 |
> |
if (code) /* report status */ |
135 |
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report(); |
136 |
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|
136 |
> |
headclean(); /* delete header file */ |
137 |
> |
pfclean(); /* clean up persist files */ |
138 |
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exit(code); |
139 |
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} |
140 |
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|
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|
142 |
+ |
#ifndef NIX |
143 |
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report() /* report progress */ |
144 |
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{ |
145 |
+ |
extern char *myhostname(); |
146 |
+ |
double u, s; |
147 |
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#ifdef BSD |
148 |
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struct rusage rubuf; |
149 |
< |
double t; |
149 |
> |
#else |
150 |
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struct tms tbuf; |
151 |
> |
double period; |
152 |
> |
#endif |
153 |
|
|
154 |
+ |
tlastrept = time((time_t *)NULL); |
155 |
+ |
#ifdef BSD |
156 |
|
getrusage(RUSAGE_SELF, &rubuf); |
157 |
< |
t = (rubuf.ru_utime.tv_usec + rubuf.ru_stime.tv_usec) / 1e6; |
158 |
< |
t += rubuf.ru_utime.tv_sec + rubuf.ru_stime.tv_sec; |
157 |
> |
u = rubuf.ru_utime.tv_sec + rubuf.ru_utime.tv_usec/1e6; |
158 |
> |
s = rubuf.ru_stime.tv_sec + rubuf.ru_stime.tv_usec/1e6; |
159 |
|
getrusage(RUSAGE_CHILDREN, &rubuf); |
160 |
< |
t += (rubuf.ru_utime.tv_usec + rubuf.ru_stime.tv_usec) / 1e6; |
161 |
< |
t += rubuf.ru_utime.tv_sec + rubuf.ru_stime.tv_sec; |
78 |
< |
|
79 |
< |
sprintf(errmsg, "%ld rays, %4.2f%% done after %5.4f CPU hours\n", |
80 |
< |
nrays, pctdone, t/3600.0); |
160 |
> |
u += rubuf.ru_utime.tv_sec + rubuf.ru_utime.tv_usec/1e6; |
161 |
> |
s += rubuf.ru_stime.tv_sec + rubuf.ru_stime.tv_usec/1e6; |
162 |
|
#else |
163 |
< |
sprintf(errmsg, "%ld rays, %4.2f%% done\n", nrays, pctdone); |
163 |
> |
times(&tbuf); |
164 |
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#ifdef _SC_CLK_TCK |
165 |
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period = 1.0 / sysconf(_SC_CLK_TCK); |
166 |
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#else |
167 |
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period = 1.0 / 60.0; |
168 |
|
#endif |
169 |
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u = ( tbuf.tms_utime + tbuf.tms_cutime ) * period; |
170 |
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s = ( tbuf.tms_stime + tbuf.tms_cstime ) * period; |
171 |
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#endif |
172 |
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|
173 |
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sprintf(errmsg, |
174 |
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"%lu rays, %4.2f%% after %.3fu %.3fs %.3fr hours on %s\n", |
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nrays, pctdone, u/3600., s/3600., |
176 |
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(tlastrept-tstart)/3600., myhostname()); |
177 |
|
eputs(errmsg); |
178 |
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#ifndef BSD |
179 |
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signal(SIGCONT, report); |
180 |
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#endif |
181 |
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} |
182 |
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#else |
183 |
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report() /* report progress */ |
184 |
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{ |
185 |
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tlastrept = time((time_t *)NULL); |
186 |
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sprintf(errmsg, "%lu rays, %4.2f%% after %5.4f hours\n", |
187 |
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nrays, pctdone, (tlastrept-tstart)/3600.0); |
188 |
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eputs(errmsg); |
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} |
190 |
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#endif |
191 |
|
|
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if (ralrm > 0) |
193 |
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alarm(ralrm); |
192 |
> |
|
193 |
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rpict(seq, pout, zout, prvr) /* generate image(s) */ |
194 |
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int seq; |
195 |
> |
char *pout, *zout, *prvr; |
196 |
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/* |
197 |
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* If seq is greater than zero, then we will render a sequence of |
198 |
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* images based on view parameter strings read from the standard input. |
199 |
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* If pout is NULL, then all images will be sent to the standard ouput. |
200 |
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* If seq is greater than zero and prvr is an integer, then it is the |
201 |
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* frame number at which rendering should begin. Preceeding view parameter |
202 |
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* strings will be skipped in the input. |
203 |
> |
* If pout and prvr are the same, prvr is renamed to avoid overwriting. |
204 |
> |
* Note that pout and zout should contain %d format specifications for |
205 |
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* sequenced file naming. |
206 |
> |
*/ |
207 |
> |
{ |
208 |
> |
extern char *rindex(), *strncpy(), *strcat(), *strcpy(); |
209 |
> |
char fbuf[128], fbuf2[128]; |
210 |
> |
int npicts; |
211 |
> |
register char *cp; |
212 |
> |
RESOLU rs; |
213 |
> |
double pa; |
214 |
> |
/* check sampling */ |
215 |
> |
if (psample < 1) |
216 |
> |
psample = 1; |
217 |
> |
else if (psample > MAXDIV) { |
218 |
> |
sprintf(errmsg, "pixel sampling reduced from %d to %d", |
219 |
> |
psample, MAXDIV); |
220 |
> |
error(WARNING, errmsg); |
221 |
> |
psample = MAXDIV; |
222 |
> |
} |
223 |
> |
/* get starting frame */ |
224 |
> |
if (seq <= 0) |
225 |
> |
seq = 0; |
226 |
> |
else if (prvr != NULL && isint(prvr)) { |
227 |
> |
register int rn; /* skip to specified view */ |
228 |
> |
if ((rn = atoi(prvr)) < seq) |
229 |
> |
error(USER, "recover frame less than start frame"); |
230 |
> |
if (pout == NULL) |
231 |
> |
error(USER, "missing output file specification"); |
232 |
> |
for ( ; seq < rn; seq++) |
233 |
> |
if (nextview(stdin) == EOF) |
234 |
> |
error(USER, "unexpected EOF on view input"); |
235 |
> |
setview(&ourview); |
236 |
> |
prvr = fbuf; /* mark for renaming */ |
237 |
> |
} |
238 |
> |
if (pout != NULL & prvr != NULL) { |
239 |
> |
sprintf(fbuf, pout, seq); |
240 |
> |
if (!strcmp(prvr, fbuf)) { /* rename */ |
241 |
> |
strcpy(fbuf2, fbuf); |
242 |
> |
for (cp = fbuf2; *cp; cp++) |
243 |
> |
; |
244 |
> |
while (cp > fbuf2 && !ISDIRSEP(cp[-1])) |
245 |
> |
cp--; |
246 |
> |
strcpy(cp, RFTEMPLATE); |
247 |
> |
prvr = mktemp(fbuf2); |
248 |
> |
if (rename(fbuf, prvr) < 0) |
249 |
> |
if (errno == ENOENT) { /* ghost file */ |
250 |
> |
sprintf(errmsg, |
251 |
> |
"new output file \"%s\"", |
252 |
> |
fbuf); |
253 |
> |
error(WARNING, errmsg); |
254 |
> |
prvr = NULL; |
255 |
> |
} else { /* serious error */ |
256 |
> |
sprintf(errmsg, |
257 |
> |
"cannot rename \"%s\" to \"%s\"", |
258 |
> |
fbuf, prvr); |
259 |
> |
error(SYSTEM, errmsg); |
260 |
> |
} |
261 |
> |
} |
262 |
> |
} |
263 |
> |
npicts = 0; /* render sequence */ |
264 |
> |
do { |
265 |
> |
if (seq && nextview(stdin) == EOF) |
266 |
> |
break; |
267 |
> |
pctdone = 0.0; |
268 |
> |
if (pout != NULL) { |
269 |
> |
sprintf(fbuf, pout, seq); |
270 |
> |
if (file_exists(fbuf)) { |
271 |
> |
if (prvr != NULL || !strcmp(fbuf, pout)) { |
272 |
> |
sprintf(errmsg, |
273 |
> |
"output file \"%s\" exists", |
274 |
> |
fbuf); |
275 |
> |
error(USER, errmsg); |
276 |
> |
} |
277 |
> |
setview(&ourview); |
278 |
> |
continue; /* don't clobber */ |
279 |
> |
} |
280 |
> |
if (freopen(fbuf, "w", stdout) == NULL) { |
281 |
> |
sprintf(errmsg, |
282 |
> |
"cannot open output file \"%s\"", fbuf); |
283 |
> |
error(SYSTEM, errmsg); |
284 |
> |
} |
285 |
> |
#ifdef MSDOS |
286 |
> |
setmode(fileno(stdout), O_BINARY); |
287 |
> |
#endif |
288 |
> |
dupheader(); |
289 |
> |
} |
290 |
> |
hres = hresolu; vres = vresolu; pa = pixaspect; |
291 |
> |
if (prvr != NULL) |
292 |
> |
if (viewfile(prvr, &ourview, &rs) <= 0 |
293 |
> |
|| rs.or != PIXSTANDARD) { |
294 |
> |
sprintf(errmsg, |
295 |
> |
"cannot recover view parameters from \"%s\"", prvr); |
296 |
> |
error(WARNING, errmsg); |
297 |
> |
} else { |
298 |
> |
pa = 0.0; |
299 |
> |
hres = scanlen(&rs); |
300 |
> |
vres = numscans(&rs); |
301 |
> |
} |
302 |
> |
if ((cp = setview(&ourview)) != NULL) |
303 |
> |
error(USER, cp); |
304 |
> |
normaspect(viewaspect(&ourview), &pa, &hres, &vres); |
305 |
> |
if (seq) { |
306 |
> |
if (ralrm > 0) { |
307 |
> |
fprintf(stderr, "FRAME %d:", seq); |
308 |
> |
fprintview(&ourview, stderr); |
309 |
> |
putc('\n', stderr); |
310 |
> |
fflush(stderr); |
311 |
> |
} |
312 |
> |
printf("FRAME=%d\n", seq); |
313 |
> |
} |
314 |
> |
fputs(VIEWSTR, stdout); |
315 |
> |
fprintview(&ourview, stdout); |
316 |
> |
putchar('\n'); |
317 |
> |
if (pa < .99 || pa > 1.01) |
318 |
> |
fputaspect(pa, stdout); |
319 |
> |
fputformat(COLRFMT, stdout); |
320 |
> |
putchar('\n'); |
321 |
> |
if (zout != NULL) |
322 |
> |
sprintf(cp=fbuf, zout, seq); |
323 |
> |
else |
324 |
> |
cp = NULL; |
325 |
> |
render(cp, prvr); |
326 |
> |
prvr = NULL; |
327 |
> |
npicts++; |
328 |
> |
} while (seq++); |
329 |
> |
/* check that we did something */ |
330 |
> |
if (npicts == 0) |
331 |
> |
error(WARNING, "no output produced"); |
332 |
|
} |
333 |
|
|
334 |
|
|
335 |
< |
render(oldfile) /* render the scene */ |
336 |
< |
char *oldfile; |
335 |
> |
nextview(fp) /* get next view from fp */ |
336 |
> |
FILE *fp; |
337 |
|
{ |
338 |
+ |
char linebuf[256]; |
339 |
+ |
|
340 |
+ |
copystruct(&lastview, &ourview); |
341 |
+ |
while (fgets(linebuf, sizeof(linebuf), fp) != NULL) |
342 |
+ |
if (isview(linebuf) && sscanview(&ourview, linebuf) > 0) |
343 |
+ |
return(0); |
344 |
+ |
return(EOF); |
345 |
+ |
} |
346 |
+ |
|
347 |
+ |
|
348 |
+ |
render(zfile, oldfile) /* render the scene */ |
349 |
+ |
char *zfile, *oldfile; |
350 |
+ |
{ |
351 |
+ |
extern long lseek(); |
352 |
|
COLOR *scanbar[MAXDIV+1]; /* scanline arrays of pixel values */ |
353 |
+ |
float *zbar[MAXDIV+1]; /* z values */ |
354 |
+ |
char *sampdens; /* previous sample density */ |
355 |
|
int ypos; /* current scanline */ |
356 |
+ |
int ystep; /* current y step size */ |
357 |
+ |
int hstep; /* h step size */ |
358 |
+ |
int zfd; |
359 |
|
COLOR *colptr; |
360 |
+ |
float *zptr; |
361 |
|
register int i; |
362 |
< |
|
99 |
< |
if (psample < 1) |
100 |
< |
psample = 1; |
101 |
< |
else if (psample > MAXDIV) |
102 |
< |
psample = MAXDIV; |
103 |
< |
|
104 |
< |
ourview.hresolu -= ourview.hresolu % psample; |
105 |
< |
ourview.vresolu -= ourview.vresolu % psample; |
106 |
< |
|
362 |
> |
/* allocate scanlines */ |
363 |
|
for (i = 0; i <= psample; i++) { |
364 |
< |
scanbar[i] = (COLOR *)malloc((ourview.hresolu+1)*sizeof(COLOR)); |
364 |
> |
scanbar[i] = (COLOR *)malloc(hres*sizeof(COLOR)); |
365 |
|
if (scanbar[i] == NULL) |
366 |
< |
error(SYSTEM, "out of memory in render"); |
366 |
> |
goto memerr; |
367 |
|
} |
368 |
< |
|
368 |
> |
hstep = (psample*140+49)/99; /* quincunx sampling */ |
369 |
> |
ystep = (psample*99+70)/140; |
370 |
> |
if (hstep > 2) { |
371 |
> |
i = hres/hstep + 2; |
372 |
> |
if ((sampdens = malloc(i)) == NULL) |
373 |
> |
goto memerr; |
374 |
> |
while (i--) |
375 |
> |
sampdens[i] = hstep; |
376 |
> |
} else |
377 |
> |
sampdens = NULL; |
378 |
> |
/* open z-file */ |
379 |
> |
if (zfile != NULL) { |
380 |
> |
if ((zfd = open(zfile, O_WRONLY|O_CREAT, 0666)) == -1) { |
381 |
> |
sprintf(errmsg, "cannot open z-file \"%s\"", zfile); |
382 |
> |
error(SYSTEM, errmsg); |
383 |
> |
} |
384 |
> |
#ifdef MSDOS |
385 |
> |
setmode(zfd, O_BINARY); |
386 |
> |
#endif |
387 |
> |
for (i = 0; i <= psample; i++) { |
388 |
> |
zbar[i] = (float *)malloc(hres*sizeof(float)); |
389 |
> |
if (zbar[i] == NULL) |
390 |
> |
goto memerr; |
391 |
> |
} |
392 |
> |
} else { |
393 |
> |
zfd = -1; |
394 |
> |
for (i = 0; i <= psample; i++) |
395 |
> |
zbar[i] = NULL; |
396 |
> |
} |
397 |
|
/* write out boundaries */ |
398 |
< |
printf("-Y %d +X %d\n", ourview.vresolu, ourview.hresolu); |
399 |
< |
|
400 |
< |
ypos = ourview.vresolu - salvage(oldfile); /* find top line */ |
401 |
< |
fillscanline(scanbar[0], ypos, psample); /* top scan */ |
402 |
< |
|
403 |
< |
for (ypos -= psample; ypos > -psample; ypos -= psample) { |
404 |
< |
|
405 |
< |
colptr = scanbar[psample]; /* get last scanline */ |
406 |
< |
scanbar[psample] = scanbar[0]; |
398 |
> |
fprtresolu(hres, vres, stdout); |
399 |
> |
/* recover file and compute first */ |
400 |
> |
i = salvage(oldfile); |
401 |
> |
if (i >= vres) |
402 |
> |
goto alldone; |
403 |
> |
if (zfd != -1 && i > 0 && |
404 |
> |
lseek(zfd, (long)i*hres*sizeof(float), 0) == -1) |
405 |
> |
error(SYSTEM, "z-file seek error in render"); |
406 |
> |
pctdone = 100.0*i/vres; |
407 |
> |
if (ralrm > 0) /* report init stats */ |
408 |
> |
report(); |
409 |
> |
#ifndef BSD |
410 |
> |
else |
411 |
> |
#endif |
412 |
> |
signal(SIGCONT, report); |
413 |
> |
ypos = vres-1 - i; /* initialize sampling */ |
414 |
> |
if (directvis) |
415 |
> |
init_drawsources(psample); |
416 |
> |
fillscanline(scanbar[0], zbar[0], sampdens, hres, ypos, hstep); |
417 |
> |
/* compute scanlines */ |
418 |
> |
for (ypos -= ystep; ypos > -ystep; ypos -= ystep) { |
419 |
> |
/* bottom adjust? */ |
420 |
> |
if (ypos < 0) { |
421 |
> |
ystep += ypos; |
422 |
> |
ypos = 0; |
423 |
> |
} |
424 |
> |
colptr = scanbar[ystep]; /* move base to top */ |
425 |
> |
scanbar[ystep] = scanbar[0]; |
426 |
|
scanbar[0] = colptr; |
427 |
< |
|
428 |
< |
fillscanline(scanbar[0], ypos, psample); /* base scan */ |
429 |
< |
|
430 |
< |
fillscanbar(scanbar, ypos, psample); |
431 |
< |
|
432 |
< |
for (i = psample-1; i >= 0; i--) |
433 |
< |
if (fwritescan(scanbar[i], ourview.hresolu, stdout) < 0) |
427 |
> |
zptr = zbar[ystep]; |
428 |
> |
zbar[ystep] = zbar[0]; |
429 |
> |
zbar[0] = zptr; |
430 |
> |
/* fill base line */ |
431 |
> |
fillscanline(scanbar[0], zbar[0], sampdens, |
432 |
> |
hres, ypos, hstep); |
433 |
> |
/* fill bar */ |
434 |
> |
fillscanbar(scanbar, zbar, hres, ypos, ystep); |
435 |
> |
if (directvis) /* add bitty sources */ |
436 |
> |
drawsources(scanbar, zbar, 0, hres, ypos, ystep); |
437 |
> |
/* write it out */ |
438 |
> |
#ifndef BSD |
439 |
> |
signal(SIGCONT, SIG_IGN); /* don't interrupt writes */ |
440 |
> |
#endif |
441 |
> |
for (i = ystep; i > 0; i--) { |
442 |
> |
if (zfd != -1 && write(zfd, (char *)zbar[i], |
443 |
> |
hres*sizeof(float)) |
444 |
> |
< hres*sizeof(float)) |
445 |
|
goto writerr; |
446 |
+ |
if (fwritescan(scanbar[i], hres, stdout) < 0) |
447 |
+ |
goto writerr; |
448 |
+ |
} |
449 |
|
if (fflush(stdout) == EOF) |
450 |
|
goto writerr; |
451 |
< |
pctdone = 100.0*(ourview.vresolu-ypos)/ourview.vresolu; |
451 |
> |
/* record progress */ |
452 |
> |
pctdone = 100.0*(vres-1-ypos)/vres; |
453 |
> |
if (ralrm > 0 && time((time_t *)NULL) >= tlastrept+ralrm) |
454 |
> |
report(); |
455 |
> |
#ifndef BSD |
456 |
> |
else |
457 |
> |
signal(SIGCONT, report); |
458 |
> |
#endif |
459 |
|
} |
460 |
< |
|
460 |
> |
/* clean up */ |
461 |
> |
signal(SIGCONT, SIG_IGN); |
462 |
> |
if (zfd != -1 && write(zfd, (char *)zbar[0], hres*sizeof(float)) |
463 |
> |
< hres*sizeof(float)) |
464 |
> |
goto writerr; |
465 |
> |
fwritescan(scanbar[0], hres, stdout); |
466 |
> |
if (fflush(stdout) == EOF) |
467 |
> |
goto writerr; |
468 |
> |
alldone: |
469 |
> |
if (zfd != -1) { |
470 |
> |
if (close(zfd) == -1) |
471 |
> |
goto writerr; |
472 |
> |
for (i = 0; i <= psample; i++) |
473 |
> |
free((char *)zbar[i]); |
474 |
> |
} |
475 |
|
for (i = 0; i <= psample; i++) |
476 |
|
free((char *)scanbar[i]); |
477 |
+ |
if (sampdens != NULL) |
478 |
+ |
free(sampdens); |
479 |
+ |
pctdone = 100.0; |
480 |
+ |
if (ralrm > 0) |
481 |
+ |
report(); |
482 |
+ |
signal(SIGCONT, SIG_DFL); |
483 |
|
return; |
484 |
|
writerr: |
485 |
|
error(SYSTEM, "write error in render"); |
486 |
+ |
memerr: |
487 |
+ |
error(SYSTEM, "out of memory in render"); |
488 |
|
} |
489 |
|
|
490 |
|
|
491 |
< |
fillscanline(scanline, y, xstep) /* fill scan line at y */ |
492 |
< |
register COLOR *scanline; |
493 |
< |
int y, xstep; |
491 |
> |
fillscanline(scanline, zline, sd, xres, y, xstep) /* fill scan at y */ |
492 |
> |
register COLOR *scanline; |
493 |
> |
register float *zline; |
494 |
> |
register char *sd; |
495 |
> |
int xres, y, xstep; |
496 |
|
{ |
497 |
< |
int b = xstep; |
497 |
> |
static int nc = 0; /* number of calls */ |
498 |
> |
int bl = xstep, b = xstep; |
499 |
> |
double z; |
500 |
|
register int i; |
151 |
– |
|
152 |
– |
pixvalue(scanline[0], 0, y); |
501 |
|
|
502 |
< |
for (i = xstep; i <= ourview.hresolu; i += xstep) { |
503 |
< |
|
504 |
< |
pixvalue(scanline[i], i, y); |
505 |
< |
|
506 |
< |
b = fillsample(scanline+i-xstep, i-xstep, y, xstep, 0, b/2); |
502 |
> |
z = pixvalue(scanline[0], 0, y); |
503 |
> |
if (zline) zline[0] = z; |
504 |
> |
/* zig-zag start for quincunx pattern */ |
505 |
> |
for (i = ++nc & 1 ? xstep : xstep/2; i < xres-1+xstep; i += xstep) { |
506 |
> |
if (i >= xres) { |
507 |
> |
xstep += xres-1-i; |
508 |
> |
i = xres-1; |
509 |
> |
} |
510 |
> |
z = pixvalue(scanline[i], i, y); |
511 |
> |
if (zline) zline[i] = z; |
512 |
> |
if (sd) b = sd[0] > sd[1] ? sd[0] : sd[1]; |
513 |
> |
if (i <= xstep) |
514 |
> |
b = fillsample(scanline, zline, 0, y, i, 0, b/2); |
515 |
> |
else |
516 |
> |
b = fillsample(scanline+i-xstep, |
517 |
> |
zline ? zline+i-xstep : (float *)NULL, |
518 |
> |
i-xstep, y, xstep, 0, b/2); |
519 |
> |
if (sd) *sd++ = nc & 1 ? bl : b; |
520 |
> |
bl = b; |
521 |
|
} |
522 |
+ |
if (sd && nc & 1) *sd = bl; |
523 |
|
} |
524 |
|
|
525 |
|
|
526 |
< |
fillscanbar(scanbar, y, ysize) /* fill interior */ |
527 |
< |
register COLOR *scanbar[]; |
528 |
< |
int y, ysize; |
526 |
> |
fillscanbar(scanbar, zbar, xres, y, ysize) /* fill interior */ |
527 |
> |
register COLOR *scanbar[]; |
528 |
> |
register float *zbar[]; |
529 |
> |
int xres, y, ysize; |
530 |
|
{ |
531 |
|
COLOR vline[MAXDIV+1]; |
532 |
+ |
float zline[MAXDIV+1]; |
533 |
|
int b = ysize; |
534 |
|
register int i, j; |
535 |
< |
|
536 |
< |
for (i = 0; i < ourview.hresolu; i++) { |
172 |
< |
|
535 |
> |
|
536 |
> |
for (i = 0; i < xres; i++) { |
537 |
|
copycolor(vline[0], scanbar[0][i]); |
538 |
|
copycolor(vline[ysize], scanbar[ysize][i]); |
539 |
< |
|
540 |
< |
b = fillsample(vline, i, y, 0, ysize, b/2); |
541 |
< |
|
539 |
> |
if (zbar[0]) { |
540 |
> |
zline[0] = zbar[0][i]; |
541 |
> |
zline[ysize] = zbar[ysize][i]; |
542 |
> |
} |
543 |
> |
b = fillsample(vline, zbar[0] ? zline : (float *)NULL, |
544 |
> |
i, y, 0, ysize, b/2); |
545 |
> |
|
546 |
|
for (j = 1; j < ysize; j++) |
547 |
|
copycolor(scanbar[j][i], vline[j]); |
548 |
+ |
if (zbar[0]) |
549 |
+ |
for (j = 1; j < ysize; j++) |
550 |
+ |
zbar[j][i] = zline[j]; |
551 |
|
} |
552 |
|
} |
553 |
|
|
554 |
|
|
555 |
|
int |
556 |
< |
fillsample(colline, x, y, xlen, ylen, b) /* fill interior points */ |
557 |
< |
register COLOR *colline; |
556 |
> |
fillsample(colline, zline, x, y, xlen, ylen, b) /* fill interior points */ |
557 |
> |
register COLOR *colline; |
558 |
> |
register float *zline; |
559 |
|
int x, y; |
560 |
|
int xlen, ylen; |
561 |
|
int b; |
562 |
|
{ |
563 |
< |
double ratio; |
563 |
> |
double ratio; |
564 |
> |
double z; |
565 |
|
COLOR ctmp; |
566 |
|
int ncut; |
567 |
|
register int len; |
568 |
< |
|
568 |
> |
|
569 |
|
if (xlen > 0) /* x or y length is zero */ |
570 |
|
len = xlen; |
571 |
|
else |
572 |
|
len = ylen; |
573 |
< |
|
573 |
> |
|
574 |
|
if (len <= 1) /* limit recursion */ |
575 |
|
return(0); |
576 |
< |
|
577 |
< |
if (b > 0 || bigdiff(colline[0], colline[len], maxdiff)) { |
578 |
< |
|
579 |
< |
pixvalue(colline[len>>1], x + (xlen>>1), y + (ylen>>1)); |
576 |
> |
|
577 |
> |
if (b > 0 || |
578 |
> |
(zline && 2.*fabs(zline[0]-zline[len]) > maxdiff*(zline[0]+zline[len])) |
579 |
> |
|| bigdiff(colline[0], colline[len], maxdiff)) { |
580 |
> |
|
581 |
> |
z = pixvalue(colline[len>>1], x + (xlen>>1), y + (ylen>>1)); |
582 |
> |
if (zline) zline[len>>1] = z; |
583 |
|
ncut = 1; |
208 |
– |
|
584 |
|
} else { /* interpolate */ |
210 |
– |
|
585 |
|
copycolor(colline[len>>1], colline[len]); |
586 |
|
ratio = (double)(len>>1) / len; |
587 |
|
scalecolor(colline[len>>1], ratio); |
588 |
< |
copycolor(ctmp, colline[0]); |
588 |
> |
if (zline) zline[len>>1] = zline[len] * ratio; |
589 |
|
ratio = 1.0 - ratio; |
590 |
+ |
copycolor(ctmp, colline[0]); |
591 |
|
scalecolor(ctmp, ratio); |
592 |
|
addcolor(colline[len>>1], ctmp); |
593 |
+ |
if (zline) zline[len>>1] += zline[0] * ratio; |
594 |
|
ncut = 0; |
595 |
|
} |
596 |
|
/* recurse */ |
597 |
< |
ncut += fillsample(colline, x, y, xlen>>1, ylen>>1, (b-1)/2); |
222 |
< |
|
223 |
< |
ncut += fillsample(colline + (len>>1), x + (xlen>>1), y + (ylen>>1), |
224 |
< |
xlen - (xlen>>1), ylen - (ylen>>1), b/2); |
597 |
> |
ncut += fillsample(colline, zline, x, y, xlen>>1, ylen>>1, (b-1)/2); |
598 |
|
|
599 |
+ |
ncut += fillsample(colline+(len>>1), |
600 |
+ |
zline ? zline+(len>>1) : (float *)NULL, |
601 |
+ |
x+(xlen>>1), y+(ylen>>1), |
602 |
+ |
xlen-(xlen>>1), ylen-(ylen>>1), b/2); |
603 |
+ |
|
604 |
|
return(ncut); |
605 |
|
} |
606 |
|
|
607 |
|
|
608 |
+ |
double |
609 |
|
pixvalue(col, x, y) /* compute pixel value */ |
610 |
|
COLOR col; /* returned color */ |
611 |
|
int x, y; /* pixel position */ |
612 |
|
{ |
613 |
< |
static RAY thisray; /* our ray for this pixel */ |
613 |
> |
RAY thisray; |
614 |
> |
FVECT lorg, ldir; |
615 |
> |
double hpos, vpos, lmax, d; |
616 |
> |
/* compute view ray */ |
617 |
> |
hpos = (x+pixjitter())/hres; |
618 |
> |
vpos = (y+pixjitter())/vres; |
619 |
> |
if ((thisray.rmax = viewray(thisray.rorg, thisray.rdir, |
620 |
> |
&ourview, hpos, vpos)) < -FTINY) { |
621 |
> |
setcolor(col, 0.0, 0.0, 0.0); |
622 |
> |
return(0.0); |
623 |
> |
} |
624 |
|
|
625 |
< |
rayview(thisray.rorg, thisray.rdir, &ourview, |
237 |
< |
x + pixjitter(), y + pixjitter()); |
625 |
> |
samplendx = pixnumber(x,y,hres,vres); /* set pixel index */ |
626 |
|
|
627 |
+ |
/* optional motion blur */ |
628 |
+ |
if (lastview.type && mblur > FTINY && (lmax = viewray(lorg, ldir, |
629 |
+ |
&lastview, hpos, vpos)) >= -FTINY) { |
630 |
+ |
register int i; |
631 |
+ |
register double d = mblur*(.5-urand(281+samplendx)); |
632 |
+ |
|
633 |
+ |
thisray.rmax = (1.-d)*thisray.rmax + d*lmax; |
634 |
+ |
for (i = 3; i--; ) { |
635 |
+ |
thisray.rorg[i] = (1.-d)*thisray.rorg[i] + d*lorg[i]; |
636 |
+ |
thisray.rdir[i] = (1.-d)*thisray.rdir[i] + d*ldir[i]; |
637 |
+ |
} |
638 |
+ |
if (normalize(thisray.rdir) == 0.0) |
639 |
+ |
return(0.0); |
640 |
+ |
} |
641 |
+ |
|
642 |
|
rayorigin(&thisray, NULL, PRIMARY, 1.0); |
643 |
< |
|
643 |
> |
|
644 |
|
rayvalue(&thisray); /* trace ray */ |
645 |
|
|
646 |
|
copycolor(col, thisray.rcol); /* return color */ |
647 |
+ |
|
648 |
+ |
return(thisray.rt); /* return distance */ |
649 |
|
} |
650 |
|
|
651 |
|
|
658 |
|
int x, y; |
659 |
|
|
660 |
|
if (oldfile == NULL) |
661 |
< |
return(0); |
662 |
< |
else if ((fp = fopen(oldfile, "r")) == NULL) { |
661 |
> |
goto gotzip; |
662 |
> |
|
663 |
> |
if ((fp = fopen(oldfile, "r")) == NULL) { |
664 |
|
sprintf(errmsg, "cannot open recover file \"%s\"", oldfile); |
665 |
|
error(WARNING, errmsg); |
666 |
< |
return(0); |
666 |
> |
goto gotzip; |
667 |
|
} |
668 |
+ |
#ifdef MSDOS |
669 |
+ |
setmode(fileno(fp), O_BINARY); |
670 |
+ |
#endif |
671 |
|
/* discard header */ |
672 |
< |
getheader(fp, NULL); |
672 |
> |
getheader(fp, NULL, NULL); |
673 |
|
/* get picture size */ |
674 |
< |
if (fscanf(fp, "-Y %d +X %d\n", &y, &x) != 2) { |
675 |
< |
sprintf(errmsg, "bad recover file \"%s\"", oldfile); |
674 |
> |
if (!fscnresolu(&x, &y, fp)) { |
675 |
> |
sprintf(errmsg, "bad recover file \"%s\" - not removed", |
676 |
> |
oldfile); |
677 |
|
error(WARNING, errmsg); |
678 |
|
fclose(fp); |
679 |
< |
return(0); |
679 |
> |
goto gotzip; |
680 |
|
} |
681 |
|
|
682 |
< |
if (x != ourview.hresolu || y != ourview.vresolu) { |
682 |
> |
if (x != hres || y != vres) { |
683 |
|
sprintf(errmsg, "resolution mismatch in recover file \"%s\"", |
684 |
|
oldfile); |
685 |
|
error(USER, errmsg); |
276 |
– |
return(0); |
686 |
|
} |
687 |
|
|
688 |
< |
scanline = (COLR *)malloc(ourview.hresolu*sizeof(COLR)); |
688 |
> |
scanline = (COLR *)malloc(hres*sizeof(COLR)); |
689 |
|
if (scanline == NULL) |
690 |
|
error(SYSTEM, "out of memory in salvage"); |
691 |
< |
for (y = 0; y < ourview.vresolu; y++) { |
692 |
< |
if (freadcolrs(scanline, ourview.hresolu, fp) < 0) |
691 |
> |
for (y = 0; y < vres; y++) { |
692 |
> |
if (freadcolrs(scanline, hres, fp) < 0) |
693 |
|
break; |
694 |
< |
if (fwritecolrs(scanline, ourview.hresolu, stdout) < 0) |
694 |
> |
if (fwritecolrs(scanline, hres, stdout) < 0) |
695 |
|
goto writerr; |
696 |
|
} |
697 |
|
if (fflush(stdout) == EOF) |
700 |
|
fclose(fp); |
701 |
|
unlink(oldfile); |
702 |
|
return(y); |
703 |
+ |
gotzip: |
704 |
+ |
if (fflush(stdout) == EOF) |
705 |
+ |
error(SYSTEM, "error writing picture header"); |
706 |
+ |
return(0); |
707 |
|
writerr: |
708 |
< |
error(SYSTEM, "write error in salvage"); |
708 |
> |
sprintf(errmsg, "write error during recovery of \"%s\"", oldfile); |
709 |
> |
error(SYSTEM, errmsg); |
710 |
> |
} |
711 |
> |
|
712 |
> |
|
713 |
> |
int |
714 |
> |
pixnumber(x, y, xres, yres) /* compute pixel index (brushed) */ |
715 |
> |
register int x, y; |
716 |
> |
int xres, yres; |
717 |
> |
{ |
718 |
> |
x -= y; |
719 |
> |
while (x < 0) |
720 |
> |
x += xres; |
721 |
> |
return((((x>>2)*yres + y) << 2) + (x & 3)); |
722 |
|
} |