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/* Copyright (c) 1991 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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|
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#include "ray.h" |
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#include "copyright.h" |
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|
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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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#include <sys/types.h> |
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|
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#include "platform.h" |
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#ifdef NON_POSIX |
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#ifdef MINGW |
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#include <sys/time.h> |
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#endif |
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#else |
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#include <signal.h> |
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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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#include <fcntl.h> |
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|
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#include "view.h" |
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#include <time.h> |
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#include <signal.h> |
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|
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#include "ray.h" |
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#include "paths.h" |
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#include "ambient.h" |
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#include "view.h" |
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#include "random.h" |
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#include "paths.h" |
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#include "rtmisc.h" /* myhostname() */ |
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|
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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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#ifdef SIGIO /* XXX can we live without this? */ |
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#define SIGCONT SIGIO |
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#endif |
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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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int directrelay = 0; /* number of source relays */ |
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double mblur = 0.; /* motion blur parameter */ |
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|
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double dblur = 0.; /* depth-of-field 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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int rand_samp = 0; /* pure Monte Carlo sampling? */ |
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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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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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int maxdepth = 6; /* maximum recursion depth */ |
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double minweight = 5e-3; /* minimum ray weight */ |
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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 = 7; /* maximum recursion depth */ |
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double minweight = 4e-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 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 ambvwt = 0; /* initial weight for ambient value */ |
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double ambacc = 0.2; /* ambient accuracy */ |
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int ambres = 64; /* ambient resolution */ |
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int ambdiv = 512; /* ambient divisions */ |
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int ambssamp = 128; /* 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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char *amblist[AMBLLEN]; /* ambient include/exclude list */ |
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int ambincl = -1; /* include == 1, exclude == 0 */ |
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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 15 /* 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(); /* XXX should be in stdlib.h or unistd.h */ |
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|
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double pixvalue(); |
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//double pixvalue(); |
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|
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static void report(int); |
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static int nextview(FILE *fp); |
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static void render(char *zfile, char *oldfile); |
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static void fillscanline(COLOR *scanline, float *zline, char *sd, int xres, |
130 |
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int y, int xstep); |
131 |
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static void fillscanbar(COLOR *scanbar[], float *zbar[], int xres, |
132 |
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int y, int ysize); |
133 |
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static int fillsample(COLOR *colline, float *zline, int x, int y, |
134 |
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int xlen, int ylen, int b); |
135 |
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static double pixvalue(COLOR col, int x, int y); |
136 |
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static int salvage(char *oldfile); |
137 |
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static int pixnumber(int x, int y, int xres, int yres); |
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|
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|
140 |
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|
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#ifdef RHAS_STAT |
142 |
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#include <sys/types.h> |
143 |
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#include <sys/stat.h> |
144 |
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int |
145 |
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file_exists(fname) /* ordinary file exists? */ |
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char *fname; |
147 |
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{ |
148 |
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struct stat sbuf; |
149 |
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if (stat(fname, &sbuf) < 0) return(0); |
150 |
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return((sbuf.st_mode & S_IFREG) != 0); |
151 |
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} |
152 |
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#else |
153 |
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#define file_exists(f) (access(f,F_OK)==0) |
154 |
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#endif |
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|
156 |
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|
157 |
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void |
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quit(code) /* quit program */ |
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int code; |
160 |
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{ |
161 |
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if (code || ralrm > 0) /* report status */ |
162 |
< |
report(); |
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|
161 |
> |
if (code) /* report status */ |
162 |
> |
report(0); |
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> |
#ifndef NON_POSIX |
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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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report() /* report progress */ |
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#ifndef NON_POSIX |
172 |
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static void |
173 |
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report(int dummy) /* report progress */ |
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{ |
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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 |
179 |
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struct tms tbuf; |
180 |
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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; |
187 |
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t += rubuf.ru_utime.tv_sec + rubuf.ru_stime.tv_sec; |
186 |
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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; |
190 |
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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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|
202 |
< |
sprintf(errmsg, "%ld rays, %4.2f%% done after %5.4f CPU hours\n", |
203 |
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nrays, pctdone, t/3600.0); |
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> |
sprintf(errmsg, |
203 |
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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); |
207 |
> |
#ifdef SIGCONT |
208 |
> |
signal(SIGCONT, report); |
209 |
> |
#endif |
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} |
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#else |
212 |
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report() /* report progress */ |
212 |
> |
static void |
213 |
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report(int dummy) /* report progress */ |
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{ |
215 |
< |
signal(SIGALRM, report); |
216 |
< |
tlastrept = time((long *)0); |
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< |
sprintf(errmsg, "%ld rays, %4.2f%% done after %5.4f hours\n", |
215 |
> |
tlastrept = time((time_t *)NULL); |
216 |
> |
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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} |
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#endif |
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|
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|
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render(zfile, oldfile) /* render the scene */ |
224 |
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char *zfile, *oldfile; |
223 |
> |
extern void |
224 |
> |
rpict( /* generate image(s) */ |
225 |
> |
int seq, |
226 |
> |
char *pout, |
227 |
> |
char *zout, |
228 |
> |
char *prvr |
229 |
> |
) |
230 |
> |
/* |
231 |
> |
* If seq is greater than zero, then we will render a sequence of |
232 |
> |
* images based on view parameter strings read from the standard input. |
233 |
> |
* If pout is NULL, then all images will be sent to the standard ouput. |
234 |
> |
* If seq is greater than zero and prvr is an integer, then it is the |
235 |
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* frame number at which rendering should begin. Preceeding view parameter |
236 |
> |
* strings will be skipped in the input. |
237 |
> |
* If pout and prvr are the same, prvr is renamed to avoid overwriting. |
238 |
> |
* Note that pout and zout should contain %d format specifications for |
239 |
> |
* sequenced file naming. |
240 |
> |
*/ |
241 |
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{ |
242 |
< |
extern long lseek(); |
243 |
< |
COLOR *scanbar[MAXDIV+1]; /* scanline arrays of pixel values */ |
244 |
< |
float *zbar[MAXDIV+1]; /* z values */ |
245 |
< |
int ypos; /* current scanline */ |
246 |
< |
int ystep; /* current y step size */ |
125 |
< |
int zfd; |
126 |
< |
COLOR *colptr; |
127 |
< |
float *zptr; |
128 |
< |
register int i; |
242 |
> |
char fbuf[128], fbuf2[128]; |
243 |
> |
int npicts; |
244 |
> |
register char *cp; |
245 |
> |
RESOLU rs; |
246 |
> |
double pa; |
247 |
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/* check sampling */ |
248 |
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if (psample < 1) |
249 |
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psample = 1; |
253 |
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error(WARNING, errmsg); |
254 |
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psample = MAXDIV; |
255 |
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} |
256 |
+ |
/* get starting frame */ |
257 |
+ |
if (seq <= 0) |
258 |
+ |
seq = 0; |
259 |
+ |
else if (prvr != NULL && isint(prvr)) { |
260 |
+ |
register int rn; /* skip to specified view */ |
261 |
+ |
if ((rn = atoi(prvr)) < seq) |
262 |
+ |
error(USER, "recover frame less than start frame"); |
263 |
+ |
if (pout == NULL) |
264 |
+ |
error(USER, "missing output file specification"); |
265 |
+ |
for ( ; seq < rn; seq++) |
266 |
+ |
if (nextview(stdin) == EOF) |
267 |
+ |
error(USER, "unexpected EOF on view input"); |
268 |
+ |
setview(&ourview); |
269 |
+ |
prvr = fbuf; /* mark for renaming */ |
270 |
+ |
} |
271 |
+ |
if ((pout != NULL) & (prvr != NULL)) { |
272 |
+ |
sprintf(fbuf, pout, seq); |
273 |
+ |
if (!strcmp(prvr, fbuf)) { /* rename */ |
274 |
+ |
strcpy(fbuf2, fbuf); |
275 |
+ |
for (cp = fbuf2; *cp; cp++) |
276 |
+ |
; |
277 |
+ |
while (cp > fbuf2 && !ISDIRSEP(cp[-1])) |
278 |
+ |
cp--; |
279 |
+ |
strcpy(cp, RFTEMPLATE); |
280 |
+ |
prvr = mktemp(fbuf2); |
281 |
+ |
if (rename(fbuf, prvr) < 0) { |
282 |
+ |
if (errno == ENOENT) { /* ghost file */ |
283 |
+ |
sprintf(errmsg, |
284 |
+ |
"new output file \"%s\"", |
285 |
+ |
fbuf); |
286 |
+ |
error(WARNING, errmsg); |
287 |
+ |
prvr = NULL; |
288 |
+ |
} else { /* serious error */ |
289 |
+ |
sprintf(errmsg, |
290 |
+ |
"cannot rename \"%s\" to \"%s\"", |
291 |
+ |
fbuf, prvr); |
292 |
+ |
error(SYSTEM, errmsg); |
293 |
+ |
} |
294 |
+ |
} |
295 |
+ |
} |
296 |
+ |
} |
297 |
+ |
npicts = 0; /* render sequence */ |
298 |
+ |
do { |
299 |
+ |
if (seq && nextview(stdin) == EOF) |
300 |
+ |
break; |
301 |
+ |
pctdone = 0.0; |
302 |
+ |
if (pout != NULL) { |
303 |
+ |
sprintf(fbuf, pout, seq); |
304 |
+ |
if (file_exists(fbuf)) { |
305 |
+ |
if (prvr != NULL || !strcmp(fbuf, pout)) { |
306 |
+ |
sprintf(errmsg, |
307 |
+ |
"output file \"%s\" exists", |
308 |
+ |
fbuf); |
309 |
+ |
error(USER, errmsg); |
310 |
+ |
} |
311 |
+ |
setview(&ourview); |
312 |
+ |
continue; /* don't clobber */ |
313 |
+ |
} |
314 |
+ |
if (freopen(fbuf, "w", stdout) == NULL) { |
315 |
+ |
sprintf(errmsg, |
316 |
+ |
"cannot open output file \"%s\"", fbuf); |
317 |
+ |
error(SYSTEM, errmsg); |
318 |
+ |
} |
319 |
+ |
SET_FILE_BINARY(stdout); |
320 |
+ |
dupheader(); |
321 |
+ |
} |
322 |
+ |
hres = hresolu; vres = vresolu; pa = pixaspect; |
323 |
+ |
if (prvr != NULL) { |
324 |
+ |
if (viewfile(prvr, &ourview, &rs) <= 0) { |
325 |
+ |
sprintf(errmsg, |
326 |
+ |
"cannot recover view parameters from \"%s\"", prvr); |
327 |
+ |
error(WARNING, errmsg); |
328 |
+ |
} else { |
329 |
+ |
pa = 0.0; |
330 |
+ |
hres = scanlen(&rs); |
331 |
+ |
vres = numscans(&rs); |
332 |
+ |
} |
333 |
+ |
} |
334 |
+ |
if ((cp = setview(&ourview)) != NULL) |
335 |
+ |
error(USER, cp); |
336 |
+ |
normaspect(viewaspect(&ourview), &pa, &hres, &vres); |
337 |
+ |
if (seq) { |
338 |
+ |
if (ralrm > 0) { |
339 |
+ |
fprintf(stderr, "FRAME %d:", seq); |
340 |
+ |
fprintview(&ourview, stderr); |
341 |
+ |
putc('\n', stderr); |
342 |
+ |
fflush(stderr); |
343 |
+ |
} |
344 |
+ |
printf("FRAME=%d\n", seq); |
345 |
+ |
} |
346 |
+ |
fputs(VIEWSTR, stdout); |
347 |
+ |
fprintview(&ourview, stdout); |
348 |
+ |
putchar('\n'); |
349 |
+ |
if (pa < .99 || pa > 1.01) |
350 |
+ |
fputaspect(pa, stdout); |
351 |
+ |
fputnow(stdout); |
352 |
+ |
fputformat(COLRFMT, stdout); |
353 |
+ |
putchar('\n'); |
354 |
+ |
if (zout != NULL) |
355 |
+ |
sprintf(cp=fbuf, zout, seq); |
356 |
+ |
else |
357 |
+ |
cp = NULL; |
358 |
+ |
render(cp, prvr); |
359 |
+ |
prvr = NULL; |
360 |
+ |
npicts++; |
361 |
+ |
} while (seq++); |
362 |
+ |
/* check that we did something */ |
363 |
+ |
if (npicts == 0) |
364 |
+ |
error(WARNING, "no output produced"); |
365 |
+ |
} |
366 |
+ |
|
367 |
+ |
|
368 |
+ |
static int |
369 |
+ |
nextview( /* get next view from fp */ |
370 |
+ |
FILE *fp |
371 |
+ |
) |
372 |
+ |
{ |
373 |
+ |
char linebuf[256]; |
374 |
+ |
|
375 |
+ |
lastview = ourview; |
376 |
+ |
while (fgets(linebuf, sizeof(linebuf), fp) != NULL) |
377 |
+ |
if (isview(linebuf) && sscanview(&ourview, linebuf) > 0) |
378 |
+ |
return(0); |
379 |
+ |
return(EOF); |
380 |
+ |
} |
381 |
+ |
|
382 |
+ |
|
383 |
+ |
static void |
384 |
+ |
render( /* render the scene */ |
385 |
+ |
char *zfile, |
386 |
+ |
char *oldfile |
387 |
+ |
) |
388 |
+ |
{ |
389 |
+ |
COLOR *scanbar[MAXDIV+1]; /* scanline arrays of pixel values */ |
390 |
+ |
float *zbar[MAXDIV+1]; /* z values */ |
391 |
+ |
char *sampdens; /* previous sample density */ |
392 |
+ |
int ypos; /* current scanline */ |
393 |
+ |
int ystep; /* current y step size */ |
394 |
+ |
int hstep; /* h step size */ |
395 |
+ |
int zfd; |
396 |
+ |
COLOR *colptr; |
397 |
+ |
float *zptr; |
398 |
+ |
register int i; |
399 |
+ |
/* check for empty image */ |
400 |
+ |
if (hres <= 0 || vres <= 0) { |
401 |
+ |
error(WARNING, "empty output picture"); |
402 |
+ |
fprtresolu(0, 0, stdout); |
403 |
+ |
return; |
404 |
+ |
} |
405 |
|
/* allocate scanlines */ |
406 |
|
for (i = 0; i <= psample; i++) { |
407 |
< |
scanbar[i] = (COLOR *)malloc(hresolu*sizeof(COLOR)); |
407 |
> |
scanbar[i] = (COLOR *)malloc(hres*sizeof(COLOR)); |
408 |
|
if (scanbar[i] == NULL) |
409 |
|
goto memerr; |
410 |
|
} |
411 |
< |
/* open z file */ |
411 |
> |
hstep = (psample*140+49)/99; /* quincunx sampling */ |
412 |
> |
ystep = (psample*99+70)/140; |
413 |
> |
if (hstep > 2) { |
414 |
> |
i = hres/hstep + 2; |
415 |
> |
if ((sampdens = (char *)malloc(i)) == NULL) |
416 |
> |
goto memerr; |
417 |
> |
while (i--) |
418 |
> |
sampdens[i] = hstep; |
419 |
> |
} else |
420 |
> |
sampdens = NULL; |
421 |
> |
/* open z-file */ |
422 |
|
if (zfile != NULL) { |
423 |
|
if ((zfd = open(zfile, O_WRONLY|O_CREAT, 0666)) == -1) { |
424 |
< |
sprintf(errmsg, "cannot open z file \"%s\"", zfile); |
424 |
> |
sprintf(errmsg, "cannot open z-file \"%s\"", zfile); |
425 |
|
error(SYSTEM, errmsg); |
426 |
|
} |
427 |
+ |
SET_FD_BINARY(zfd); |
428 |
|
for (i = 0; i <= psample; i++) { |
429 |
< |
zbar[i] = (float *)malloc(hresolu*sizeof(float)); |
429 |
> |
zbar[i] = (float *)malloc(hres*sizeof(float)); |
430 |
|
if (zbar[i] == NULL) |
431 |
|
goto memerr; |
432 |
|
} |
436 |
|
zbar[i] = NULL; |
437 |
|
} |
438 |
|
/* write out boundaries */ |
439 |
< |
fputresolu(YMAJOR|YDECR, hresolu, vresolu, stdout); |
439 |
> |
fprtresolu(hres, vres, stdout); |
440 |
|
/* recover file and compute first */ |
441 |
|
i = salvage(oldfile); |
442 |
+ |
if (i >= vres) |
443 |
+ |
goto alldone; |
444 |
|
if (zfd != -1 && i > 0 && |
445 |
< |
lseek(zfd, (long)i*hresolu*sizeof(float), 0) == -1) |
446 |
< |
error(SYSTEM, "z file seek error in render"); |
447 |
< |
pctdone = 100.0*i/vresolu; |
445 |
> |
lseek(zfd, (off_t)i*hres*sizeof(float), SEEK_SET) < 0) |
446 |
> |
error(SYSTEM, "z-file seek error in render"); |
447 |
> |
pctdone = 100.0*i/vres; |
448 |
|
if (ralrm > 0) /* report init stats */ |
449 |
< |
report(); |
450 |
< |
#ifndef BSD |
449 |
> |
report(0); |
450 |
> |
#ifdef SIGCONT |
451 |
|
else |
452 |
+ |
signal(SIGCONT, report); |
453 |
|
#endif |
454 |
< |
signal(SIGALRM, report); |
455 |
< |
ypos = vresolu-1 - i; |
456 |
< |
fillscanline(scanbar[0], zbar[0], hresolu, ypos, psample); |
457 |
< |
ystep = psample; |
454 |
> |
ypos = vres-1 - i; /* initialize sampling */ |
455 |
> |
if (directvis) |
456 |
> |
init_drawsources(psample); |
457 |
> |
fillscanline(scanbar[0], zbar[0], sampdens, hres, ypos, hstep); |
458 |
|
/* compute scanlines */ |
459 |
|
for (ypos -= ystep; ypos > -ystep; ypos -= ystep) { |
460 |
|
/* bottom adjust? */ |
469 |
|
zbar[ystep] = zbar[0]; |
470 |
|
zbar[0] = zptr; |
471 |
|
/* fill base line */ |
472 |
< |
fillscanline(scanbar[0], zbar[0], hresolu, ypos, psample); |
472 |
> |
fillscanline(scanbar[0], zbar[0], sampdens, |
473 |
> |
hres, ypos, hstep); |
474 |
|
/* fill bar */ |
475 |
< |
fillscanbar(scanbar, zbar, hresolu, ypos, ystep); |
475 |
> |
fillscanbar(scanbar, zbar, hres, ypos, ystep); |
476 |
> |
if (directvis) /* add bitty sources */ |
477 |
> |
drawsources(scanbar, zbar, 0, hres, ypos, ystep); |
478 |
|
/* write it out */ |
479 |
< |
#ifndef BSD |
480 |
< |
signal(SIGALRM, SIG_IGN); /* don't interrupt writes */ |
479 |
> |
#ifdef SIGCONT |
480 |
> |
signal(SIGCONT, SIG_IGN); /* don't interrupt writes */ |
481 |
|
#endif |
482 |
|
for (i = ystep; i > 0; i--) { |
483 |
|
if (zfd != -1 && write(zfd, (char *)zbar[i], |
484 |
< |
hresolu*sizeof(float)) |
485 |
< |
< hresolu*sizeof(float)) |
484 |
> |
hres*sizeof(float)) |
485 |
> |
< hres*sizeof(float)) |
486 |
|
goto writerr; |
487 |
< |
if (fwritescan(scanbar[i], hresolu, stdout) < 0) |
487 |
> |
if (fwritescan(scanbar[i], hres, stdout) < 0) |
488 |
|
goto writerr; |
489 |
|
} |
490 |
|
if (fflush(stdout) == EOF) |
491 |
|
goto writerr; |
492 |
|
/* record progress */ |
493 |
< |
pctdone = 100.0*(vresolu-1-ypos)/vresolu; |
494 |
< |
if (ralrm > 0 && time((long *)0) >= tlastrept+ralrm) |
495 |
< |
report(); |
496 |
< |
#ifndef BSD |
493 |
> |
pctdone = 100.0*(vres-1-ypos)/vres; |
494 |
> |
if (ralrm > 0 && time((time_t *)NULL) >= tlastrept+ralrm) |
495 |
> |
report(0); |
496 |
> |
#ifdef SIGCONT |
497 |
|
else |
498 |
< |
signal(SIGALRM, report); |
498 |
> |
signal(SIGCONT, report); |
499 |
|
#endif |
500 |
|
} |
501 |
|
/* clean up */ |
502 |
+ |
#ifdef SIGCONT |
503 |
+ |
signal(SIGCONT, SIG_IGN); |
504 |
+ |
#endif |
505 |
+ |
if (zfd != -1 && write(zfd, (char *)zbar[0], hres*sizeof(float)) |
506 |
+ |
< hres*sizeof(float)) |
507 |
+ |
goto writerr; |
508 |
+ |
fwritescan(scanbar[0], hres, stdout); |
509 |
+ |
if (fflush(stdout) == EOF) |
510 |
+ |
goto writerr; |
511 |
+ |
alldone: |
512 |
|
if (zfd != -1) { |
219 |
– |
if (write(zfd, (char *)zbar[0], hresolu*sizeof(float)) |
220 |
– |
< hresolu*sizeof(float)) |
221 |
– |
goto writerr; |
513 |
|
if (close(zfd) == -1) |
514 |
|
goto writerr; |
515 |
|
for (i = 0; i <= psample; i++) |
516 |
< |
free((char *)zbar[i]); |
516 |
> |
free((void *)zbar[i]); |
517 |
|
} |
227 |
– |
fwritescan(scanbar[0], hresolu, stdout); |
228 |
– |
if (fflush(stdout) == EOF) |
229 |
– |
goto writerr; |
518 |
|
for (i = 0; i <= psample; i++) |
519 |
< |
free((char *)scanbar[i]); |
519 |
> |
free((void *)scanbar[i]); |
520 |
> |
if (sampdens != NULL) |
521 |
> |
free(sampdens); |
522 |
|
pctdone = 100.0; |
523 |
+ |
if (ralrm > 0) |
524 |
+ |
report(0); |
525 |
+ |
#ifdef SIGCONT |
526 |
+ |
signal(SIGCONT, SIG_DFL); |
527 |
+ |
#endif |
528 |
|
return; |
529 |
|
writerr: |
530 |
|
error(SYSTEM, "write error in render"); |
533 |
|
} |
534 |
|
|
535 |
|
|
536 |
< |
fillscanline(scanline, zline, xres, y, xstep) /* fill scan line at y */ |
537 |
< |
register COLOR *scanline; |
538 |
< |
register float *zline; |
539 |
< |
int xres, y, xstep; |
536 |
> |
static void |
537 |
> |
fillscanline( /* fill scan at y */ |
538 |
> |
register COLOR *scanline, |
539 |
> |
register float *zline, |
540 |
> |
register char *sd, |
541 |
> |
int xres, |
542 |
> |
int y, |
543 |
> |
int xstep |
544 |
> |
) |
545 |
|
{ |
546 |
< |
int b = xstep; |
547 |
< |
double z; |
546 |
> |
static int nc = 0; /* number of calls */ |
547 |
> |
int bl = xstep, b = xstep; |
548 |
> |
double z; |
549 |
|
register int i; |
550 |
< |
|
550 |
> |
|
551 |
|
z = pixvalue(scanline[0], 0, y); |
552 |
|
if (zline) zline[0] = z; |
553 |
< |
|
554 |
< |
for (i = xstep; i < xres-1+xstep; i += xstep) { |
553 |
> |
/* zig-zag start for quincunx pattern */ |
554 |
> |
for (i = ++nc & 1 ? xstep : xstep/2; i < xres-1+xstep; i += xstep) { |
555 |
|
if (i >= xres) { |
556 |
|
xstep += xres-1-i; |
557 |
|
i = xres-1; |
558 |
|
} |
559 |
|
z = pixvalue(scanline[i], i, y); |
560 |
|
if (zline) zline[i] = z; |
561 |
< |
|
562 |
< |
b = fillsample(scanline+i-xstep, zline ? zline+i-xstep : NULL, |
563 |
< |
i-xstep, y, xstep, 0, b/2); |
561 |
> |
if (sd) b = sd[0] > sd[1] ? sd[0] : sd[1]; |
562 |
> |
if (i <= xstep) |
563 |
> |
b = fillsample(scanline, zline, 0, y, i, 0, b/2); |
564 |
> |
else |
565 |
> |
b = fillsample(scanline+i-xstep, |
566 |
> |
zline ? zline+i-xstep : (float *)NULL, |
567 |
> |
i-xstep, y, xstep, 0, b/2); |
568 |
> |
if (sd) *sd++ = nc & 1 ? bl : b; |
569 |
> |
bl = b; |
570 |
|
} |
571 |
+ |
if (sd && nc & 1) *sd = bl; |
572 |
|
} |
573 |
|
|
574 |
|
|
575 |
< |
fillscanbar(scanbar, zbar, xres, y, ysize) /* fill interior */ |
576 |
< |
register COLOR *scanbar[]; |
577 |
< |
register float *zbar[]; |
578 |
< |
int xres, y, ysize; |
575 |
> |
static void |
576 |
> |
fillscanbar( /* fill interior */ |
577 |
> |
register COLOR *scanbar[], |
578 |
> |
register float *zbar[], |
579 |
> |
int xres, |
580 |
> |
int y, |
581 |
> |
int ysize |
582 |
> |
) |
583 |
|
{ |
584 |
|
COLOR vline[MAXDIV+1]; |
585 |
|
float zline[MAXDIV+1]; |
586 |
|
int b = ysize; |
587 |
|
register int i, j; |
588 |
< |
|
588 |
> |
|
589 |
|
for (i = 0; i < xres; i++) { |
278 |
– |
|
590 |
|
copycolor(vline[0], scanbar[0][i]); |
591 |
|
copycolor(vline[ysize], scanbar[ysize][i]); |
592 |
|
if (zbar[0]) { |
593 |
|
zline[0] = zbar[0][i]; |
594 |
|
zline[ysize] = zbar[ysize][i]; |
595 |
|
} |
596 |
< |
|
286 |
< |
b = fillsample(vline, zbar[0] ? zline : NULL, |
596 |
> |
b = fillsample(vline, zbar[0] ? zline : (float *)NULL, |
597 |
|
i, y, 0, ysize, b/2); |
598 |
< |
|
598 |
> |
|
599 |
|
for (j = 1; j < ysize; j++) |
600 |
|
copycolor(scanbar[j][i], vline[j]); |
601 |
|
if (zbar[0]) |
605 |
|
} |
606 |
|
|
607 |
|
|
608 |
< |
int |
609 |
< |
fillsample(colline, zline, x, y, xlen, ylen, b) /* fill interior points */ |
610 |
< |
register COLOR *colline; |
611 |
< |
register float *zline; |
612 |
< |
int x, y; |
613 |
< |
int xlen, ylen; |
614 |
< |
int b; |
608 |
> |
static int |
609 |
> |
fillsample( /* fill interior points */ |
610 |
> |
register COLOR *colline, |
611 |
> |
register float *zline, |
612 |
> |
int x, |
613 |
> |
int y, |
614 |
> |
int xlen, |
615 |
> |
int ylen, |
616 |
> |
int b |
617 |
> |
) |
618 |
|
{ |
619 |
< |
extern double fabs(); |
620 |
< |
double ratio; |
308 |
< |
double z; |
619 |
> |
double ratio; |
620 |
> |
double z; |
621 |
|
COLOR ctmp; |
622 |
|
int ncut; |
623 |
|
register int len; |
624 |
< |
|
624 |
> |
|
625 |
|
if (xlen > 0) /* x or y length is zero */ |
626 |
|
len = xlen; |
627 |
|
else |
628 |
|
len = ylen; |
629 |
< |
|
629 |
> |
|
630 |
|
if (len <= 1) /* limit recursion */ |
631 |
|
return(0); |
632 |
< |
|
633 |
< |
if (b > 0 |
634 |
< |
|| (zline && 2.*fabs(zline[0]-zline[len]) > maxdiff*(zline[0]+zline[len])) |
632 |
> |
|
633 |
> |
if (b > 0 || |
634 |
> |
(zline && 2.*fabs(zline[0]-zline[len]) > maxdiff*(zline[0]+zline[len])) |
635 |
|
|| bigdiff(colline[0], colline[len], maxdiff)) { |
636 |
< |
|
636 |
> |
|
637 |
|
z = pixvalue(colline[len>>1], x + (xlen>>1), y + (ylen>>1)); |
638 |
|
if (zline) zline[len>>1] = z; |
639 |
|
ncut = 1; |
328 |
– |
|
640 |
|
} else { /* interpolate */ |
330 |
– |
|
641 |
|
copycolor(colline[len>>1], colline[len]); |
642 |
|
ratio = (double)(len>>1) / len; |
643 |
|
scalecolor(colline[len>>1], ratio); |
651 |
|
} |
652 |
|
/* recurse */ |
653 |
|
ncut += fillsample(colline, zline, x, y, xlen>>1, ylen>>1, (b-1)/2); |
654 |
< |
|
655 |
< |
ncut += fillsample(colline+(len>>1), zline ? zline+(len>>1) : NULL, |
654 |
> |
|
655 |
> |
ncut += fillsample(colline+(len>>1), |
656 |
> |
zline ? zline+(len>>1) : (float *)NULL, |
657 |
|
x+(xlen>>1), y+(ylen>>1), |
658 |
|
xlen-(xlen>>1), ylen-(ylen>>1), b/2); |
659 |
|
|
661 |
|
} |
662 |
|
|
663 |
|
|
664 |
< |
double |
665 |
< |
pixvalue(col, x, y) /* compute pixel value */ |
666 |
< |
COLOR col; /* returned color */ |
667 |
< |
int x, y; /* pixel position */ |
664 |
> |
static double |
665 |
> |
pixvalue( /* compute pixel value */ |
666 |
> |
COLOR col, /* returned color */ |
667 |
> |
int x, /* pixel position */ |
668 |
> |
int y |
669 |
> |
) |
670 |
|
{ |
671 |
< |
static RAY thisray; |
672 |
< |
|
673 |
< |
if (viewray(thisray.rorg, thisray.rdir, &ourview, |
674 |
< |
(x+pixjitter())/hresolu, (y+pixjitter())/vresolu) < 0) { |
671 |
> |
RAY thisray; |
672 |
> |
FVECT lorg, ldir; |
673 |
> |
double hpos, vpos, vdist, lmax; |
674 |
> |
register int i; |
675 |
> |
/* compute view ray */ |
676 |
> |
hpos = (x+pixjitter())/hres; |
677 |
> |
vpos = (y+pixjitter())/vres; |
678 |
> |
if ((thisray.rmax = viewray(thisray.rorg, thisray.rdir, |
679 |
> |
&ourview, hpos, vpos)) < -FTINY) { |
680 |
|
setcolor(col, 0.0, 0.0, 0.0); |
681 |
|
return(0.0); |
682 |
|
} |
683 |
+ |
vdist = ourview.vdist; |
684 |
+ |
/* set pixel index */ |
685 |
+ |
samplendx = pixnumber(x,y,hres,vres); |
686 |
+ |
/* optional motion blur */ |
687 |
+ |
if (lastview.type && mblur > FTINY && (lmax = viewray(lorg, ldir, |
688 |
+ |
&lastview, hpos, vpos)) >= -FTINY) { |
689 |
+ |
register double d = mblur*(.5-urand(281+samplendx)); |
690 |
|
|
691 |
< |
rayorigin(&thisray, NULL, PRIMARY, 1.0); |
691 |
> |
thisray.rmax = (1.-d)*thisray.rmax + d*lmax; |
692 |
> |
for (i = 3; i--; ) { |
693 |
> |
thisray.rorg[i] = (1.-d)*thisray.rorg[i] + d*lorg[i]; |
694 |
> |
thisray.rdir[i] = (1.-d)*thisray.rdir[i] + d*ldir[i]; |
695 |
> |
} |
696 |
> |
if (normalize(thisray.rdir) == 0.0) |
697 |
> |
return(0.0); |
698 |
> |
vdist = (1.-d)*vdist + d*lastview.vdist; |
699 |
> |
} |
700 |
> |
/* optional depth-of-field */ |
701 |
> |
if (dblur > FTINY && vdist > FTINY) { |
702 |
> |
double vc, dfh, dfv; |
703 |
> |
/* square/circle conv. */ |
704 |
> |
dfh = vc = frandom(); |
705 |
> |
dfv = frandom(); |
706 |
> |
dfh *= .5*dblur*sqrt(1. - .5*dfv*dfv); |
707 |
> |
dfv *= .5*dblur*sqrt(1. - .5*vc*vc); |
708 |
> |
if (ourview.type == VT_PER || ourview.type == VT_PAR) { |
709 |
> |
dfh /= sqrt(ourview.hn2); |
710 |
> |
dfv /= sqrt(ourview.vn2); |
711 |
> |
for (i = 3; i--; ) { |
712 |
> |
vc = thisray.rorg[i] + vdist*thisray.rdir[i]; |
713 |
> |
thisray.rorg[i] += dfh*ourview.hvec[i] + |
714 |
> |
dfv*ourview.vvec[i] ; |
715 |
> |
thisray.rdir[i] = vc - thisray.rorg[i]; |
716 |
> |
} |
717 |
> |
} else { /* non-standard view case */ |
718 |
> |
double dfd = PI/4.*dblur*(.5 - frandom()); |
719 |
> |
if (ourview.type != VT_ANG && ourview.type != VT_PLS) { |
720 |
> |
if (ourview.type != VT_CYL) |
721 |
> |
dfh /= sqrt(ourview.hn2); |
722 |
> |
dfv /= sqrt(ourview.vn2); |
723 |
> |
} |
724 |
> |
for (i = 3; i--; ) { |
725 |
> |
vc = thisray.rorg[i] + vdist*thisray.rdir[i]; |
726 |
> |
thisray.rorg[i] += dfh*ourview.hvec[i] + |
727 |
> |
dfv*ourview.vvec[i] + |
728 |
> |
dfd*ourview.vdir[i] ; |
729 |
> |
thisray.rdir[i] = vc - thisray.rorg[i]; |
730 |
> |
} |
731 |
> |
} |
732 |
> |
if (normalize(thisray.rdir) == 0.0) |
733 |
> |
return(0.0); |
734 |
> |
} |
735 |
|
|
736 |
< |
samplendx = pixnumber(x,y,hresolu,vresolu); /* set pixel index */ |
736 |
> |
rayorigin(&thisray, PRIMARY, NULL, NULL); |
737 |
|
|
738 |
|
rayvalue(&thisray); /* trace ray */ |
739 |
|
|
740 |
|
copycolor(col, thisray.rcol); /* return color */ |
741 |
< |
|
741 |
> |
|
742 |
|
return(thisray.rt); /* return distance */ |
743 |
|
} |
744 |
|
|
745 |
|
|
746 |
< |
int |
747 |
< |
salvage(oldfile) /* salvage scanlines from killed program */ |
748 |
< |
char *oldfile; |
746 |
> |
static int |
747 |
> |
salvage( /* salvage scanlines from killed program */ |
748 |
> |
char *oldfile |
749 |
> |
) |
750 |
|
{ |
751 |
|
COLR *scanline; |
752 |
|
FILE *fp; |
753 |
|
int x, y; |
754 |
|
|
755 |
|
if (oldfile == NULL) |
756 |
< |
return(0); |
757 |
< |
|
756 |
> |
goto gotzip; |
757 |
> |
|
758 |
|
if ((fp = fopen(oldfile, "r")) == NULL) { |
759 |
|
sprintf(errmsg, "cannot open recover file \"%s\"", oldfile); |
760 |
|
error(WARNING, errmsg); |
761 |
< |
return(0); |
761 |
> |
goto gotzip; |
762 |
|
} |
763 |
+ |
SET_FILE_BINARY(fp); |
764 |
|
/* discard header */ |
765 |
< |
getheader(fp, NULL); |
765 |
> |
getheader(fp, NULL, NULL); |
766 |
|
/* get picture size */ |
767 |
< |
if (fgetresolu(&x, &y, fp) != (YMAJOR|YDECR)) { |
768 |
< |
sprintf(errmsg, "bad recover file \"%s\"", oldfile); |
767 |
> |
if (!fscnresolu(&x, &y, fp)) { |
768 |
> |
sprintf(errmsg, "bad recover file \"%s\" - not removed", |
769 |
> |
oldfile); |
770 |
|
error(WARNING, errmsg); |
771 |
|
fclose(fp); |
772 |
< |
return(0); |
772 |
> |
goto gotzip; |
773 |
|
} |
774 |
|
|
775 |
< |
if (x != hresolu || y != vresolu) { |
775 |
> |
if (x != hres || y != vres) { |
776 |
|
sprintf(errmsg, "resolution mismatch in recover file \"%s\"", |
777 |
|
oldfile); |
778 |
|
error(USER, errmsg); |
779 |
|
} |
780 |
|
|
781 |
< |
scanline = (COLR *)malloc(hresolu*sizeof(COLR)); |
781 |
> |
scanline = (COLR *)malloc(hres*sizeof(COLR)); |
782 |
|
if (scanline == NULL) |
783 |
|
error(SYSTEM, "out of memory in salvage"); |
784 |
< |
for (y = 0; y < vresolu; y++) { |
785 |
< |
if (freadcolrs(scanline, hresolu, fp) < 0) |
784 |
> |
for (y = 0; y < vres; y++) { |
785 |
> |
if (freadcolrs(scanline, hres, fp) < 0) |
786 |
|
break; |
787 |
< |
if (fwritecolrs(scanline, hresolu, stdout) < 0) |
787 |
> |
if (fwritecolrs(scanline, hres, stdout) < 0) |
788 |
|
goto writerr; |
789 |
|
} |
790 |
|
if (fflush(stdout) == EOF) |
791 |
|
goto writerr; |
792 |
< |
free((char *)scanline); |
792 |
> |
free((void *)scanline); |
793 |
|
fclose(fp); |
794 |
|
unlink(oldfile); |
795 |
|
return(y); |
796 |
+ |
gotzip: |
797 |
+ |
if (fflush(stdout) == EOF) |
798 |
+ |
error(SYSTEM, "error writing picture header"); |
799 |
+ |
return(0); |
800 |
|
writerr: |
801 |
< |
error(SYSTEM, "write error in salvage"); |
801 |
> |
sprintf(errmsg, "write error during recovery of \"%s\"", oldfile); |
802 |
> |
error(SYSTEM, errmsg); |
803 |
> |
return -1; /* pro forma return */ |
804 |
|
} |
805 |
|
|
806 |
< |
|
807 |
< |
int |
808 |
< |
pixnumber(x, y, xres, yres) /* compute pixel index (brushed) */ |
809 |
< |
register int x, y; |
810 |
< |
int xres, yres; |
806 |
> |
static int |
807 |
> |
pixnumber( /* compute pixel index (brushed) */ |
808 |
> |
register int x, |
809 |
> |
register int y, |
810 |
> |
int xres, |
811 |
> |
int yres |
812 |
> |
) |
813 |
|
{ |
814 |
|
x -= y; |
815 |
|
while (x < 0) |