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/* Copyright (c) 1992 Regents of the University of California */ |
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|
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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static const char RCSid[] = "$Id$"; |
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#endif |
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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 "copyright.h" |
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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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#include <fcntl.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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#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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CUBE thescene; /* our scene */ |
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OBJECT nsceneobjs; /* number of objects in our scene */ |
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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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extern void ambnotify(); |
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void (*addobjnotify[])() = {ambnotify, NULL}; |
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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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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 shadcert = .5; /* shadow certainty */ |
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double mblur = 0.; /* motion blur parameter */ |
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|
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void (*trace)() = NULL; /* trace call */ |
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|
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int do_irrad = 0; /* compute irradiance? */ |
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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 directinvis = 0; /* sources invisible? */ |
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double srcsizerat = .25; /* maximum ratio source size/dist. */ |
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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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double specthresh = .15; /* specular sampling threshold */ |
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double specjitter = 1.; /* specular sampling jitter */ |
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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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char *ambfile = NULL; /* ambient file name */ |
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COLOR ambval = BLKCOLOR; /* ambient value */ |
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double ambacc = 0.2; /* ambient accuracy */ |
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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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|
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int ralrm = 0; /* seconds between reports */ |
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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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time_t tlastrept = 0L; /* time at last report */ |
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time_t tstart; /* starting time */ |
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|
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long tlastrept = 0L; /* time at last report */ |
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#define MAXDIV 16 /* maximum sample size */ |
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|
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extern long time(); |
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extern long tstart; /* starting time */ |
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#define pixjitter() (.5+dstrpix*(.5-frandom())) |
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|
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extern long nrays; /* number of rays traced */ |
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int hres, vres; /* resolution for this frame */ |
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|
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#define MAXDIV 16 /* maximum sample size */ |
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static VIEW lastview; /* the previous view input */ |
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|
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#define pixjitter() (.5+dstrpix*(.5-frandom())) |
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> |
extern char *mktemp(); |
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|
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#define RFTEMPLATE "rfXXXXXX" |
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#define HFTEMPLATE "/tmp/hfXXXXXX" |
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void report(); |
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|
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static char *hfname = NULL; /* header file name */ |
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static FILE *hfp = NULL; /* header file pointer */ |
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double pixvalue(); |
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|
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static int hres, vres; /* resolution for this frame */ |
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#ifdef NIX |
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#define file_exists(f) (access(f,F_OK)==0) |
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#else |
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#include <sys/types.h> |
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#include <sys/stat.h> |
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int |
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file_exists(fname) /* ordinary file exists? */ |
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char *fname; |
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{ |
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struct stat sbuf; |
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if (stat(fname, &sbuf) < 0) return(0); |
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return((sbuf.st_mode & S_IFREG) != 0); |
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} |
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> |
#endif |
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|
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extern char *mktemp(); |
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|
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< |
double pixvalue(); |
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|
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|
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> |
void |
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quit(code) /* quit program */ |
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int code; |
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{ |
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if (code) /* report status */ |
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report(); |
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< |
if (hfname != NULL) { /* delete header file */ |
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< |
if (hfp != NULL) |
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< |
fclose(hfp); |
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< |
unlink(hfname); |
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} |
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> |
#ifndef NIX |
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> |
headclean(); /* delete header file */ |
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pfclean(); /* clean up persist files */ |
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#endif |
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exit(code); |
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} |
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|
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|
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< |
#ifdef BSD |
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> |
#ifndef NIX |
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> |
void |
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report() /* report progress */ |
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{ |
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+ |
extern char *myhostname(); |
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double u, s; |
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#ifdef BSD |
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struct rusage rubuf; |
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double t; |
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> |
#else |
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struct tms tbuf; |
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> |
double period; |
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> |
#endif |
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|
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tlastrept = time((time_t *)NULL); |
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#ifdef BSD |
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getrusage(RUSAGE_SELF, &rubuf); |
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t = (rubuf.ru_utime.tv_usec + rubuf.ru_stime.tv_usec) / 1e6; |
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t += rubuf.ru_utime.tv_sec + rubuf.ru_stime.tv_sec; |
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u = rubuf.ru_utime.tv_sec + rubuf.ru_utime.tv_usec/1e6; |
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s = rubuf.ru_stime.tv_sec + rubuf.ru_stime.tv_usec/1e6; |
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getrusage(RUSAGE_CHILDREN, &rubuf); |
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t += (rubuf.ru_utime.tv_usec + rubuf.ru_stime.tv_usec) / 1e6; |
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t += rubuf.ru_utime.tv_sec + rubuf.ru_stime.tv_sec; |
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u += rubuf.ru_utime.tv_sec + rubuf.ru_utime.tv_usec/1e6; |
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s += rubuf.ru_stime.tv_sec + rubuf.ru_stime.tv_usec/1e6; |
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#else |
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times(&tbuf); |
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#ifdef _SC_CLK_TCK |
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period = 1.0 / sysconf(_SC_CLK_TCK); |
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#else |
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period = 1.0 / 60.0; |
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#endif |
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u = ( tbuf.tms_utime + tbuf.tms_cutime ) * period; |
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s = ( tbuf.tms_stime + tbuf.tms_cstime ) * period; |
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#endif |
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|
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sprintf(errmsg, "%ld rays, %4.2f%% done after %5.4f CPU hours\n", |
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nrays, pctdone, t/3600.0); |
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sprintf(errmsg, |
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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., |
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(tlastrept-tstart)/3600., myhostname()); |
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eputs(errmsg); |
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tlastrept = time((long *)0); |
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#ifndef BSD |
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signal(SIGCONT, report); |
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#endif |
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} |
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#else |
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void |
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report() /* report progress */ |
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{ |
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tlastrept = time((long *)0); |
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< |
sprintf(errmsg, "%ld rays, %4.2f%% done after %5.4f hours\n", |
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> |
tlastrept = time((time_t *)NULL); |
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> |
sprintf(errmsg, "%lu rays, %4.2f%% after %5.4f hours\n", |
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nrays, pctdone, (tlastrept-tstart)/3600.0); |
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eputs(errmsg); |
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signal(SIGALRM, report); |
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} |
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#endif |
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|
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|
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< |
openheader() /* save standard output to header file */ |
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< |
{ |
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< |
hfname = mktemp(HFTEMPLATE); |
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< |
if (freopen(hfname, "w", stdout) == NULL) { |
| 141 |
< |
sprintf(errmsg, "cannot open header file \"%s\"", hfname); |
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< |
error(SYSTEM, errmsg); |
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< |
} |
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< |
} |
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< |
|
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< |
|
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< |
closeheader() /* done with header output */ |
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< |
{ |
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< |
if (hfname == NULL) |
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< |
return; |
| 151 |
< |
if (fflush(stdout) == EOF || (hfp = fopen(hfname, "r")) == NULL) |
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< |
error(SYSTEM, "error reopening header file"); |
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< |
} |
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< |
|
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< |
|
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< |
dupheader() /* repeat header on standard output */ |
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< |
{ |
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< |
register int c; |
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< |
|
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< |
if (fseek(hfp, 0L, 0) < 0) |
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< |
error(SYSTEM, "seek error on header file"); |
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< |
while ((c = getc(hfp)) != EOF) |
| 163 |
< |
putchar(c); |
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< |
} |
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< |
|
| 166 |
< |
|
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> |
void |
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rpict(seq, pout, zout, prvr) /* generate image(s) */ |
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int seq; |
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char *pout, *zout, *prvr; |
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* sequenced file naming. |
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*/ |
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{ |
| 216 |
< |
extern char *rindex(), *strncpy(), *strcat(); |
| 216 |
> |
extern char *rindex(), *strncpy(), *strcat(), *strcpy(); |
| 217 |
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char fbuf[128], fbuf2[128]; |
| 218 |
+ |
int npicts; |
| 219 |
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register char *cp; |
| 220 |
< |
RESOLU rs; |
| 221 |
< |
double pa; |
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< |
/* finished writing header */ |
| 188 |
< |
closeheader(); |
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> |
RESOLU rs; |
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> |
double pa; |
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/* check sampling */ |
| 223 |
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if (psample < 1) |
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psample = 1; |
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for ( ; seq < rn; seq++) |
| 241 |
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if (nextview(stdin) == EOF) |
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error(USER, "unexpected EOF on view input"); |
| 243 |
+ |
setview(&ourview); |
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prvr = fbuf; /* mark for renaming */ |
| 245 |
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} |
| 246 |
< |
if (pout != NULL) { |
| 246 |
> |
if (pout != NULL & prvr != NULL) { |
| 247 |
|
sprintf(fbuf, pout, seq); |
| 248 |
< |
if (prvr != NULL && !strcmp(prvr, fbuf)) { /* rename */ |
| 249 |
< |
fbuf2[0] = '\0'; |
| 250 |
< |
if ((cp = rindex(fbuf, '/')) != NULL) |
| 251 |
< |
strncpy(fbuf2, fbuf, cp-fbuf+1); |
| 252 |
< |
strcat(fbuf2, RFTEMPLATE); |
| 248 |
> |
if (!strcmp(prvr, fbuf)) { /* rename */ |
| 249 |
> |
strcpy(fbuf2, fbuf); |
| 250 |
> |
for (cp = fbuf2; *cp; cp++) |
| 251 |
> |
; |
| 252 |
> |
while (cp > fbuf2 && !ISDIRSEP(cp[-1])) |
| 253 |
> |
cp--; |
| 254 |
> |
strcpy(cp, RFTEMPLATE); |
| 255 |
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prvr = mktemp(fbuf2); |
| 256 |
< |
if (rename(fbuf, prvr) < 0 && errno != ENOENT) { |
| 257 |
< |
sprintf(errmsg, |
| 256 |
> |
if (rename(fbuf, prvr) < 0) |
| 257 |
> |
if (errno == ENOENT) { /* ghost file */ |
| 258 |
> |
sprintf(errmsg, |
| 259 |
> |
"new output file \"%s\"", |
| 260 |
> |
fbuf); |
| 261 |
> |
error(WARNING, errmsg); |
| 262 |
> |
prvr = NULL; |
| 263 |
> |
} else { /* serious error */ |
| 264 |
> |
sprintf(errmsg, |
| 265 |
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"cannot rename \"%s\" to \"%s\"", |
| 266 |
|
fbuf, prvr); |
| 267 |
< |
error(SYSTEM, errmsg); |
| 268 |
< |
} |
| 267 |
> |
error(SYSTEM, errmsg); |
| 268 |
> |
} |
| 269 |
|
} |
| 270 |
|
} |
| 271 |
< |
/* render sequence */ |
| 271 |
> |
npicts = 0; /* render sequence */ |
| 272 |
|
do { |
| 273 |
|
if (seq && nextview(stdin) == EOF) |
| 274 |
|
break; |
| 275 |
+ |
pctdone = 0.0; |
| 276 |
|
if (pout != NULL) { |
| 277 |
|
sprintf(fbuf, pout, seq); |
| 278 |
+ |
if (file_exists(fbuf)) { |
| 279 |
+ |
if (prvr != NULL || !strcmp(fbuf, pout)) { |
| 280 |
+ |
sprintf(errmsg, |
| 281 |
+ |
"output file \"%s\" exists", |
| 282 |
+ |
fbuf); |
| 283 |
+ |
error(USER, errmsg); |
| 284 |
+ |
} |
| 285 |
+ |
setview(&ourview); |
| 286 |
+ |
continue; /* don't clobber */ |
| 287 |
+ |
} |
| 288 |
|
if (freopen(fbuf, "w", stdout) == NULL) { |
| 289 |
|
sprintf(errmsg, |
| 290 |
|
"cannot open output file \"%s\"", fbuf); |
| 291 |
|
error(SYSTEM, errmsg); |
| 292 |
|
} |
| 293 |
+ |
#ifdef MSDOS |
| 294 |
+ |
setmode(fileno(stdout), O_BINARY); |
| 295 |
+ |
#endif |
| 296 |
|
dupheader(); |
| 297 |
|
} |
| 298 |
|
hres = hresolu; vres = vresolu; pa = pixaspect; |
| 299 |
|
if (prvr != NULL) |
| 300 |
|
if (viewfile(prvr, &ourview, &rs) <= 0 |
| 301 |
< |
|| rs.or != PIXSTANDARD) { |
| 301 |
> |
|| rs.rt != PIXSTANDARD) { |
| 302 |
|
sprintf(errmsg, |
| 303 |
|
"cannot recover view parameters from \"%s\"", prvr); |
| 304 |
|
error(WARNING, errmsg); |
| 332 |
|
cp = NULL; |
| 333 |
|
render(cp, prvr); |
| 334 |
|
prvr = NULL; |
| 335 |
+ |
npicts++; |
| 336 |
|
} while (seq++); |
| 337 |
+ |
/* check that we did something */ |
| 338 |
+ |
if (npicts == 0) |
| 339 |
+ |
error(WARNING, "no output produced"); |
| 340 |
|
} |
| 341 |
|
|
| 342 |
|
|
| 345 |
|
{ |
| 346 |
|
char linebuf[256]; |
| 347 |
|
|
| 348 |
+ |
copystruct(&lastview, &ourview); |
| 349 |
|
while (fgets(linebuf, sizeof(linebuf), fp) != NULL) |
| 350 |
|
if (isview(linebuf) && sscanview(&ourview, linebuf) > 0) |
| 351 |
|
return(0); |
| 356 |
|
render(zfile, oldfile) /* render the scene */ |
| 357 |
|
char *zfile, *oldfile; |
| 358 |
|
{ |
| 297 |
– |
extern long lseek(); |
| 359 |
|
COLOR *scanbar[MAXDIV+1]; /* scanline arrays of pixel values */ |
| 360 |
|
float *zbar[MAXDIV+1]; /* z values */ |
| 361 |
|
char *sampdens; /* previous sample density */ |
| 366 |
|
COLOR *colptr; |
| 367 |
|
float *zptr; |
| 368 |
|
register int i; |
| 369 |
+ |
/* check for empty image */ |
| 370 |
+ |
if (hres <= 0 || vres <= 0) { |
| 371 |
+ |
error(WARNING, "empty output picture"); |
| 372 |
+ |
fprtresolu(0, 0, stdout); |
| 373 |
+ |
return; |
| 374 |
+ |
} |
| 375 |
|
/* allocate scanlines */ |
| 376 |
|
for (i = 0; i <= psample; i++) { |
| 377 |
|
scanbar[i] = (COLOR *)malloc(hres*sizeof(COLOR)); |
| 382 |
|
ystep = (psample*99+70)/140; |
| 383 |
|
if (hstep > 2) { |
| 384 |
|
i = hres/hstep + 2; |
| 385 |
< |
if ((sampdens = malloc(i)) == NULL) |
| 385 |
> |
if ((sampdens = (char *)malloc(i)) == NULL) |
| 386 |
|
goto memerr; |
| 387 |
|
while (i--) |
| 388 |
|
sampdens[i] = hstep; |
| 389 |
|
} else |
| 390 |
|
sampdens = NULL; |
| 391 |
< |
/* open z file */ |
| 391 |
> |
/* open z-file */ |
| 392 |
|
if (zfile != NULL) { |
| 393 |
|
if ((zfd = open(zfile, O_WRONLY|O_CREAT, 0666)) == -1) { |
| 394 |
< |
sprintf(errmsg, "cannot open z file \"%s\"", zfile); |
| 394 |
> |
sprintf(errmsg, "cannot open z-file \"%s\"", zfile); |
| 395 |
|
error(SYSTEM, errmsg); |
| 396 |
|
} |
| 397 |
+ |
#ifdef MSDOS |
| 398 |
+ |
setmode(zfd, O_BINARY); |
| 399 |
+ |
#endif |
| 400 |
|
for (i = 0; i <= psample; i++) { |
| 401 |
|
zbar[i] = (float *)malloc(hres*sizeof(float)); |
| 402 |
|
if (zbar[i] == NULL) |
| 411 |
|
fprtresolu(hres, vres, stdout); |
| 412 |
|
/* recover file and compute first */ |
| 413 |
|
i = salvage(oldfile); |
| 414 |
+ |
if (i >= vres) |
| 415 |
+ |
goto alldone; |
| 416 |
|
if (zfd != -1 && i > 0 && |
| 417 |
< |
lseek(zfd, (long)i*hres*sizeof(float), 0) == -1) |
| 418 |
< |
error(SYSTEM, "z file seek error in render"); |
| 417 |
> |
lseek(zfd, (off_t)i*hres*sizeof(float), 0) < 0) |
| 418 |
> |
error(SYSTEM, "z-file seek error in render"); |
| 419 |
|
pctdone = 100.0*i/vres; |
| 420 |
|
if (ralrm > 0) /* report init stats */ |
| 421 |
|
report(); |
| 422 |
< |
#ifndef BSD |
| 422 |
> |
#ifndef BSD |
| 423 |
|
else |
| 424 |
|
#endif |
| 425 |
< |
signal(SIGALRM, report); |
| 426 |
< |
ypos = vres-1 - i; |
| 425 |
> |
signal(SIGCONT, report); |
| 426 |
> |
ypos = vres-1 - i; /* initialize sampling */ |
| 427 |
> |
if (directvis) |
| 428 |
> |
init_drawsources(psample); |
| 429 |
|
fillscanline(scanbar[0], zbar[0], sampdens, hres, ypos, hstep); |
| 430 |
|
/* compute scanlines */ |
| 431 |
|
for (ypos -= ystep; ypos > -ystep; ypos -= ystep) { |
| 445 |
|
hres, ypos, hstep); |
| 446 |
|
/* fill bar */ |
| 447 |
|
fillscanbar(scanbar, zbar, hres, ypos, ystep); |
| 448 |
+ |
if (directvis) /* add bitty sources */ |
| 449 |
+ |
drawsources(scanbar, zbar, 0, hres, ypos, ystep); |
| 450 |
|
/* write it out */ |
| 451 |
< |
#ifndef BSD |
| 452 |
< |
signal(SIGALRM, SIG_IGN); /* don't interrupt writes */ |
| 451 |
> |
#ifndef BSD |
| 452 |
> |
signal(SIGCONT, SIG_IGN); /* don't interrupt writes */ |
| 453 |
|
#endif |
| 454 |
|
for (i = ystep; i > 0; i--) { |
| 455 |
|
if (zfd != -1 && write(zfd, (char *)zbar[i], |
| 463 |
|
goto writerr; |
| 464 |
|
/* record progress */ |
| 465 |
|
pctdone = 100.0*(vres-1-ypos)/vres; |
| 466 |
< |
if (ralrm > 0 && time((long *)0) >= tlastrept+ralrm) |
| 466 |
> |
if (ralrm > 0 && time((time_t *)NULL) >= tlastrept+ralrm) |
| 467 |
|
report(); |
| 468 |
< |
#ifndef BSD |
| 468 |
> |
#ifndef BSD |
| 469 |
|
else |
| 470 |
< |
signal(SIGALRM, report); |
| 470 |
> |
signal(SIGCONT, report); |
| 471 |
|
#endif |
| 472 |
|
} |
| 473 |
|
/* clean up */ |
| 474 |
< |
signal(SIGALRM, SIG_IGN); |
| 475 |
< |
if (zfd != -1) { |
| 400 |
< |
if (write(zfd, (char *)zbar[0], hres*sizeof(float)) |
| 474 |
> |
signal(SIGCONT, SIG_IGN); |
| 475 |
> |
if (zfd != -1 && write(zfd, (char *)zbar[0], hres*sizeof(float)) |
| 476 |
|
< hres*sizeof(float)) |
| 477 |
< |
goto writerr; |
| 477 |
> |
goto writerr; |
| 478 |
> |
fwritescan(scanbar[0], hres, stdout); |
| 479 |
> |
if (fflush(stdout) == EOF) |
| 480 |
> |
goto writerr; |
| 481 |
> |
alldone: |
| 482 |
> |
if (zfd != -1) { |
| 483 |
|
if (close(zfd) == -1) |
| 484 |
|
goto writerr; |
| 485 |
|
for (i = 0; i <= psample; i++) |
| 486 |
< |
free((char *)zbar[i]); |
| 486 |
> |
free((void *)zbar[i]); |
| 487 |
|
} |
| 408 |
– |
fwritescan(scanbar[0], hres, stdout); |
| 409 |
– |
if (fflush(stdout) == EOF) |
| 410 |
– |
goto writerr; |
| 488 |
|
for (i = 0; i <= psample; i++) |
| 489 |
< |
free((char *)scanbar[i]); |
| 489 |
> |
free((void *)scanbar[i]); |
| 490 |
|
if (sampdens != NULL) |
| 491 |
|
free(sampdens); |
| 492 |
|
pctdone = 100.0; |
| 493 |
+ |
if (ralrm > 0) |
| 494 |
+ |
report(); |
| 495 |
+ |
signal(SIGCONT, SIG_DFL); |
| 496 |
|
return; |
| 497 |
|
writerr: |
| 498 |
|
error(SYSTEM, "write error in render"); |
| 502 |
|
|
| 503 |
|
|
| 504 |
|
fillscanline(scanline, zline, sd, xres, y, xstep) /* fill scan at y */ |
| 505 |
< |
register COLOR *scanline; |
| 506 |
< |
register float *zline; |
| 505 |
> |
register COLOR *scanline; |
| 506 |
> |
register float *zline; |
| 507 |
|
register char *sd; |
| 508 |
|
int xres, y, xstep; |
| 509 |
|
{ |
| 510 |
|
static int nc = 0; /* number of calls */ |
| 511 |
|
int bl = xstep, b = xstep; |
| 512 |
< |
double z; |
| 512 |
> |
double z; |
| 513 |
|
register int i; |
| 514 |
< |
|
| 514 |
> |
|
| 515 |
|
z = pixvalue(scanline[0], 0, y); |
| 516 |
|
if (zline) zline[0] = z; |
| 517 |
|
/* zig-zag start for quincunx pattern */ |
| 527 |
|
b = fillsample(scanline, zline, 0, y, i, 0, b/2); |
| 528 |
|
else |
| 529 |
|
b = fillsample(scanline+i-xstep, |
| 530 |
< |
zline ? zline+i-xstep : NULL, |
| 530 |
> |
zline ? zline+i-xstep : (float *)NULL, |
| 531 |
|
i-xstep, y, xstep, 0, b/2); |
| 532 |
|
if (sd) *sd++ = nc & 1 ? bl : b; |
| 533 |
|
bl = b; |
| 537 |
|
|
| 538 |
|
|
| 539 |
|
fillscanbar(scanbar, zbar, xres, y, ysize) /* fill interior */ |
| 540 |
< |
register COLOR *scanbar[]; |
| 541 |
< |
register float *zbar[]; |
| 540 |
> |
register COLOR *scanbar[]; |
| 541 |
> |
register float *zbar[]; |
| 542 |
|
int xres, y, ysize; |
| 543 |
|
{ |
| 544 |
|
COLOR vline[MAXDIV+1]; |
| 545 |
|
float zline[MAXDIV+1]; |
| 546 |
|
int b = ysize; |
| 547 |
|
register int i, j; |
| 548 |
< |
|
| 548 |
> |
|
| 549 |
|
for (i = 0; i < xres; i++) { |
| 470 |
– |
|
| 550 |
|
copycolor(vline[0], scanbar[0][i]); |
| 551 |
|
copycolor(vline[ysize], scanbar[ysize][i]); |
| 552 |
|
if (zbar[0]) { |
| 553 |
|
zline[0] = zbar[0][i]; |
| 554 |
|
zline[ysize] = zbar[ysize][i]; |
| 555 |
|
} |
| 556 |
< |
|
| 478 |
< |
b = fillsample(vline, zbar[0] ? zline : NULL, |
| 556 |
> |
b = fillsample(vline, zbar[0] ? zline : (float *)NULL, |
| 557 |
|
i, y, 0, ysize, b/2); |
| 558 |
< |
|
| 558 |
> |
|
| 559 |
|
for (j = 1; j < ysize; j++) |
| 560 |
|
copycolor(scanbar[j][i], vline[j]); |
| 561 |
|
if (zbar[0]) |
| 566 |
|
|
| 567 |
|
|
| 568 |
|
int |
| 569 |
< |
fillsample(colline, zline, x, y, xlen, ylen, b) /* fill interior points */ |
| 570 |
< |
register COLOR *colline; |
| 571 |
< |
register float *zline; |
| 569 |
> |
fillsample(colline, zline, x, y, xlen, ylen, b) /* fill interior points */ |
| 570 |
> |
register COLOR *colline; |
| 571 |
> |
register float *zline; |
| 572 |
|
int x, y; |
| 573 |
|
int xlen, ylen; |
| 574 |
|
int b; |
| 575 |
|
{ |
| 576 |
< |
extern double fabs(); |
| 577 |
< |
double ratio; |
| 500 |
< |
double z; |
| 576 |
> |
double ratio; |
| 577 |
> |
double z; |
| 578 |
|
COLOR ctmp; |
| 579 |
|
int ncut; |
| 580 |
|
register int len; |
| 581 |
< |
|
| 581 |
> |
|
| 582 |
|
if (xlen > 0) /* x or y length is zero */ |
| 583 |
|
len = xlen; |
| 584 |
|
else |
| 585 |
|
len = ylen; |
| 586 |
< |
|
| 586 |
> |
|
| 587 |
|
if (len <= 1) /* limit recursion */ |
| 588 |
|
return(0); |
| 589 |
< |
|
| 590 |
< |
if (b > 0 |
| 591 |
< |
|| (zline && 2.*fabs(zline[0]-zline[len]) > maxdiff*(zline[0]+zline[len])) |
| 589 |
> |
|
| 590 |
> |
if (b > 0 || |
| 591 |
> |
(zline && 2.*fabs(zline[0]-zline[len]) > maxdiff*(zline[0]+zline[len])) |
| 592 |
|
|| bigdiff(colline[0], colline[len], maxdiff)) { |
| 593 |
< |
|
| 593 |
> |
|
| 594 |
|
z = pixvalue(colline[len>>1], x + (xlen>>1), y + (ylen>>1)); |
| 595 |
|
if (zline) zline[len>>1] = z; |
| 596 |
|
ncut = 1; |
| 520 |
– |
|
| 597 |
|
} else { /* interpolate */ |
| 522 |
– |
|
| 598 |
|
copycolor(colline[len>>1], colline[len]); |
| 599 |
|
ratio = (double)(len>>1) / len; |
| 600 |
|
scalecolor(colline[len>>1], ratio); |
| 608 |
|
} |
| 609 |
|
/* recurse */ |
| 610 |
|
ncut += fillsample(colline, zline, x, y, xlen>>1, ylen>>1, (b-1)/2); |
| 611 |
< |
|
| 612 |
< |
ncut += fillsample(colline+(len>>1), zline ? zline+(len>>1) : NULL, |
| 611 |
> |
|
| 612 |
> |
ncut += fillsample(colline+(len>>1), |
| 613 |
> |
zline ? zline+(len>>1) : (float *)NULL, |
| 614 |
|
x+(xlen>>1), y+(ylen>>1), |
| 615 |
|
xlen-(xlen>>1), ylen-(ylen>>1), b/2); |
| 616 |
|
|
| 623 |
|
COLOR col; /* returned color */ |
| 624 |
|
int x, y; /* pixel position */ |
| 625 |
|
{ |
| 626 |
< |
static RAY thisray; |
| 627 |
< |
|
| 628 |
< |
if (viewray(thisray.rorg, thisray.rdir, &ourview, |
| 629 |
< |
(x+pixjitter())/hres, (y+pixjitter())/vres) < 0) { |
| 626 |
> |
RAY thisray; |
| 627 |
> |
FVECT lorg, ldir; |
| 628 |
> |
double hpos, vpos, lmax, d; |
| 629 |
> |
/* compute view ray */ |
| 630 |
> |
hpos = (x+pixjitter())/hres; |
| 631 |
> |
vpos = (y+pixjitter())/vres; |
| 632 |
> |
if ((thisray.rmax = viewray(thisray.rorg, thisray.rdir, |
| 633 |
> |
&ourview, hpos, vpos)) < -FTINY) { |
| 634 |
|
setcolor(col, 0.0, 0.0, 0.0); |
| 635 |
|
return(0.0); |
| 636 |
|
} |
| 637 |
|
|
| 558 |
– |
rayorigin(&thisray, NULL, PRIMARY, 1.0); |
| 559 |
– |
|
| 638 |
|
samplendx = pixnumber(x,y,hres,vres); /* set pixel index */ |
| 639 |
|
|
| 640 |
+ |
/* optional motion blur */ |
| 641 |
+ |
if (lastview.type && mblur > FTINY && (lmax = viewray(lorg, ldir, |
| 642 |
+ |
&lastview, hpos, vpos)) >= -FTINY) { |
| 643 |
+ |
register int i; |
| 644 |
+ |
register double d = mblur*(.5-urand(281+samplendx)); |
| 645 |
+ |
|
| 646 |
+ |
thisray.rmax = (1.-d)*thisray.rmax + d*lmax; |
| 647 |
+ |
for (i = 3; i--; ) { |
| 648 |
+ |
thisray.rorg[i] = (1.-d)*thisray.rorg[i] + d*lorg[i]; |
| 649 |
+ |
thisray.rdir[i] = (1.-d)*thisray.rdir[i] + d*ldir[i]; |
| 650 |
+ |
} |
| 651 |
+ |
if (normalize(thisray.rdir) == 0.0) |
| 652 |
+ |
return(0.0); |
| 653 |
+ |
} |
| 654 |
+ |
|
| 655 |
+ |
rayorigin(&thisray, NULL, PRIMARY, 1.0); |
| 656 |
+ |
|
| 657 |
|
rayvalue(&thisray); /* trace ray */ |
| 658 |
|
|
| 659 |
|
copycolor(col, thisray.rcol); /* return color */ |
| 660 |
< |
|
| 660 |
> |
|
| 661 |
|
return(thisray.rt); /* return distance */ |
| 662 |
|
} |
| 663 |
|
|
| 671 |
|
int x, y; |
| 672 |
|
|
| 673 |
|
if (oldfile == NULL) |
| 674 |
< |
return(0); |
| 675 |
< |
|
| 674 |
> |
goto gotzip; |
| 675 |
> |
|
| 676 |
|
if ((fp = fopen(oldfile, "r")) == NULL) { |
| 677 |
|
sprintf(errmsg, "cannot open recover file \"%s\"", oldfile); |
| 678 |
|
error(WARNING, errmsg); |
| 679 |
< |
return(0); |
| 679 |
> |
goto gotzip; |
| 680 |
|
} |
| 681 |
+ |
#ifdef MSDOS |
| 682 |
+ |
setmode(fileno(fp), O_BINARY); |
| 683 |
+ |
#endif |
| 684 |
|
/* discard header */ |
| 685 |
< |
getheader(fp, NULL); |
| 685 |
> |
getheader(fp, NULL, NULL); |
| 686 |
|
/* get picture size */ |
| 687 |
|
if (!fscnresolu(&x, &y, fp)) { |
| 688 |
< |
sprintf(errmsg, "bad recover file \"%s\"", oldfile); |
| 688 |
> |
sprintf(errmsg, "bad recover file \"%s\" - not removed", |
| 689 |
> |
oldfile); |
| 690 |
|
error(WARNING, errmsg); |
| 691 |
|
fclose(fp); |
| 692 |
< |
return(0); |
| 692 |
> |
goto gotzip; |
| 693 |
|
} |
| 694 |
|
|
| 695 |
|
if (x != hres || y != vres) { |
| 709 |
|
} |
| 710 |
|
if (fflush(stdout) == EOF) |
| 711 |
|
goto writerr; |
| 712 |
< |
free((char *)scanline); |
| 712 |
> |
free((void *)scanline); |
| 713 |
|
fclose(fp); |
| 714 |
|
unlink(oldfile); |
| 715 |
|
return(y); |
| 716 |
+ |
gotzip: |
| 717 |
+ |
if (fflush(stdout) == EOF) |
| 718 |
+ |
error(SYSTEM, "error writing picture header"); |
| 719 |
+ |
return(0); |
| 720 |
|
writerr: |
| 721 |
|
sprintf(errmsg, "write error during recovery of \"%s\"", oldfile); |
| 722 |
|
error(SYSTEM, errmsg); |
