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/* Copyright (c) 1987 Regents of the University of California */ |
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/* Copyright (c) 1995 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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* 3/24/87 |
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*/ |
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#include "standard.h" |
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#include "ray.h" |
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|
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#include "color.h" |
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|
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#include "rpaint.h" |
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|
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#include <signal.h> |
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|
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#include <ctype.h> |
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|
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VIEW ourview = STDVIEW(470); /* viewing parameters */ |
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> |
VIEW ourview = STDVIEW; /* viewing parameters */ |
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> |
int hresolu, vresolu; /* image resolution */ |
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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 = 0; /* index for this sample */ |
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|
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int psample = 8; /* pixel sample size */ |
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double maxdiff = .15; /* max. sample difference */ |
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> |
double maxdiff = .15; /* max. sample difference */ |
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|
31 |
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double exposure = 1.0; /* exposure for scene */ |
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> |
double exposure = 1.0; /* exposure for scene */ |
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|
33 |
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double dstrsrc = 0.0; /* square source distribution */ |
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double shadthresh = .1; /* shadow threshold */ |
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double shadcert = .25; /* shadow certainty */ |
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double dstrsrc = 0.0; /* square source distribution */ |
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double shadthresh = .1; /* shadow threshold */ |
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double shadcert = .25; /* shadow certainty */ |
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> |
int directrelay = 0; /* number of source relays */ |
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> |
int vspretest = 128; /* virtual source pretest density */ |
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> |
int directvis = 1; /* sources visible? */ |
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> |
double srcsizerat = 0.; /* maximum ratio source size/dist. */ |
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|
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COLOR cextinction = BLKCOLOR; /* global extinction coefficient */ |
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double salbedo = 0.; /* 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 = .3; /* 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 = 4; /* maximum recursion depth */ |
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double minweight = 1e-2; /* minimum ray weight */ |
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> |
double minweight = 1e-2; /* 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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double ambacc = 0.2; /* ambient accuracy */ |
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int ambres = 8; /* ambient resolution */ |
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int ambdiv = 32; /* ambient divisions */ |
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int ambssamp = 0; /* ambient super-samples */ |
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int ambincl = -1; /* include == 1, exclude == 0 */ |
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|
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int greyscale = 0; /* map colors to brightness? */ |
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char *devname = "X"; /* output device name */ |
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char *devname = dev_default; /* output device name */ |
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|
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struct driver *dev = NULL; /* driver functions */ |
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|
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char rifname[128]; /* rad input file name */ |
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|
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VIEW oldview; /* previous view parameters */ |
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|
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PNODE ptrunk; /* the base of our image */ |
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RECT pframe; /* current frame boundaries */ |
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int pdepth; /* image depth in current frame */ |
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|
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< |
#define CTRL(c) ('c'-'@') |
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> |
static char *reserve_mem = NULL; /* pre-allocated reserve memory */ |
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|
78 |
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#define RESERVE_AMT 32768 /* amount of memory to reserve */ |
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|
80 |
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#define CTRL(c) ((c)-'@') |
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|
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|
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quit(code) /* quit program */ |
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int code; |
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{ |
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#ifdef MSTATS |
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if (code == 2 && errno == ENOMEM) |
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printmemstats(stderr); |
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#endif |
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devclose(); |
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exit(code); |
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} |
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char *dname; |
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{ |
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extern char *progname, *octname; |
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char *devargv[3]; |
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char *id; |
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register int i; |
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|
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devargv[0] = dname; |
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devargv[1] = octname!=NULL ? octname : progname; |
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devargv[2] = NULL; |
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id = octname!=NULL ? octname : progname; |
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/* check device table */ |
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for (i = 0; devtable[i].name; i++) |
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if (!strcmp(dname, devtable[i].name)) |
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if ((dev = (*devtable[i].init)(devargv[1])) == NULL) { |
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> |
if ((dev = (*devtable[i].init)(dname, id)) == NULL) { |
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sprintf(errmsg, "cannot initialize %s", dname); |
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error(USER, errmsg); |
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} else |
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return; |
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#ifndef NIX |
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/* not there, try exec */ |
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if ((dev = comm_init(devargv)) == NULL) { |
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> |
if ((dev = comm_init(dname, id)) == NULL) { |
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sprintf(errmsg, "cannot start device \"%s\"", dname); |
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error(USER, errmsg); |
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} |
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#endif |
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} |
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|
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|
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char buf[32]; |
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|
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devopen(devname); /* open device */ |
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newimage(); /* set up image */ |
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> |
newimage(); /* start image (calls fillreserves) */ |
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|
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for ( ; ; ) { /* quit in command() */ |
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while (ourview.hresolu <= 1<<pdepth && |
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ourview.vresolu <= 1<<pdepth) |
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> |
while (hresolu <= 1<<pdepth && vresolu <= 1<<pdepth) |
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command("done: "); |
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|
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if (ourview.hresolu <= psample<<pdepth && |
150 |
< |
ourview.vresolu <= psample<<pdepth) { |
148 |
> |
while (reserve_mem == NULL) |
149 |
> |
command("out of memory: "); |
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> |
errno = 0; |
151 |
> |
if (hresolu <= psample<<pdepth && vresolu <= psample<<pdepth) { |
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sprintf(buf, "%d sampling...\n", 1<<pdepth); |
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(*dev->comout)(buf); |
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rsample(); |
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} else { |
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sprintf(buf, "%d refining...\n", 1<<pdepth); |
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(*dev->comout)(buf); |
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refine(&ptrunk, 0, 0, ourview.hresolu, |
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ourview.vresolu, pdepth+1); |
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refine(&ptrunk, 0, 0, hresolu, vresolu, pdepth+1); |
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} |
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if (dev->inpready) |
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if (errno == ENOMEM) /* ran out of memory */ |
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freereserves(); |
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else if (dev->inpready) /* noticed some input */ |
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command(": "); |
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else |
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else /* finished this depth */ |
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pdepth++; |
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} |
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} |
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|
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|
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fillreserves() /* fill memory reserves */ |
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{ |
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if (reserve_mem != NULL) |
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return; |
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reserve_mem = malloc(RESERVE_AMT); |
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} |
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|
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|
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freereserves() /* free memory reserves */ |
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{ |
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if (reserve_mem == NULL) |
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return; |
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free(reserve_mem); |
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reserve_mem = NULL; |
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} |
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|
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|
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command(prompt) /* get/execute command */ |
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char *prompt; |
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{ |
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< |
#define badcom(s) strncmp(s, inpbuf, args-inpbuf-1) |
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double atof(); |
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> |
#define badcom(s) strncmp(s, inpbuf, args-inpbuf-1) |
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char inpbuf[256]; |
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char *args; |
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again: |
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< |
(*dev->comout)(prompt); /* get command + arguments */ |
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(*dev->comin)(inpbuf); |
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> |
(*dev->comin)(inpbuf, prompt); /* get command + arguments */ |
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for (args = inpbuf; *args && *args != ' '; args++) |
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; |
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if (*args) *args++ = '\0'; |
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else *++args = '\0'; |
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|
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switch (inpbuf[0]) { |
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case 'f': /* new frame */ |
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< |
if (badcom("frame")) |
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< |
goto commerr; |
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> |
case 'f': /* new frame (or free mem.) */ |
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> |
if (badcom("frame")) { |
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> |
if (badcom("free")) |
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> |
goto commerr; |
205 |
> |
free_objmem(); |
206 |
> |
break; |
207 |
> |
} |
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getframe(args); |
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break; |
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case 'v': /* view */ |
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goto commerr; |
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lastview(args); |
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break; |
220 |
+ |
case 'V': /* save view */ |
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+ |
if (badcom("V")) |
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goto commerr; |
223 |
+ |
saveview(args); |
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break; |
225 |
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case 'L': /* load view */ |
226 |
+ |
if (badcom("L")) |
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goto commerr; |
228 |
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loadview(args); |
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break; |
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case 'e': /* exposure */ |
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if (badcom("exposure")) |
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goto commerr; |
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getexposure(args); |
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break; |
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case 's': /* set a parameter */ |
236 |
< |
if (badcom("set")) |
236 |
> |
if (badcom("set")) { |
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> |
#ifdef SIGTSTP |
238 |
> |
if (!badcom("stop")) |
239 |
> |
goto dostop; |
240 |
> |
#endif |
241 |
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goto commerr; |
242 |
+ |
} |
243 |
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setparam(args); |
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break; |
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case 'n': /* new picture */ |
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goto commerr; |
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getaim(args); |
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break; |
260 |
< |
case 'm': /* move camera */ |
260 |
> |
case 'm': /* move camera (or memstats) */ |
261 |
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if (badcom("move")) |
262 |
+ |
#ifdef MSTATS |
263 |
+ |
{ |
264 |
+ |
if (badcom("memory")) |
265 |
+ |
goto commerr; |
266 |
+ |
printmemstats(stderr); |
267 |
+ |
break; |
268 |
+ |
} |
269 |
+ |
#else |
270 |
|
goto commerr; |
271 |
+ |
#endif |
272 |
|
getmove(args); |
273 |
|
break; |
274 |
< |
case 'r': /* rotate camera */ |
275 |
< |
if (badcom("rotate")) |
276 |
< |
goto commerr; |
274 |
> |
case 'r': /* rotate/repaint */ |
275 |
> |
if (badcom("rotate")) { |
276 |
> |
if (badcom("repaint")) { |
277 |
> |
if (badcom("redraw")) |
278 |
> |
goto commerr; |
279 |
> |
redraw(); |
280 |
> |
break; |
281 |
> |
} |
282 |
> |
getrepaint(args); |
283 |
> |
break; |
284 |
> |
} |
285 |
|
getrotate(args); |
286 |
|
break; |
287 |
|
case 'p': /* pivot view */ |
288 |
< |
if (badcom("pivot")) |
289 |
< |
goto commerr; |
288 |
> |
if (badcom("pivot")) { |
289 |
> |
if (badcom("pause")) |
290 |
> |
goto commerr; |
291 |
> |
goto again; |
292 |
> |
} |
293 |
|
getpivot(args); |
294 |
|
break; |
295 |
< |
case CTRL(R): /* redraw */ |
295 |
> |
case CTRL('R'): /* redraw */ |
296 |
|
redraw(); |
297 |
|
break; |
298 |
|
case 'w': /* write */ |
304 |
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if (badcom("quit")) |
305 |
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goto commerr; |
306 |
|
quit(0); |
307 |
< |
case CTRL(C): /* interrupt */ |
307 |
> |
case CTRL('C'): /* interrupt */ |
308 |
|
goto again; |
309 |
< |
#ifdef SIGTSTP |
310 |
< |
case CTRL(Z): /* stop */ |
309 |
> |
#ifdef SIGTSTP |
310 |
> |
case CTRL('Z'):; /* stop */ |
311 |
> |
dostop: |
312 |
|
devclose(); |
313 |
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kill(0, SIGTSTP); |
314 |
|
/* pc stops here */ |
328 |
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error(COMMAND, errmsg); |
329 |
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break; |
330 |
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} |
331 |
< |
#undef badcom |
331 |
> |
#undef badcom |
332 |
|
} |
333 |
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|
334 |
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|
338 |
|
RECT r; |
339 |
|
PNODE *p; |
340 |
|
register RECT *rl; |
341 |
< |
register PNODE **pl; |
341 |
> |
register PNODE **pl; |
342 |
|
register int x; |
343 |
|
/* |
344 |
|
* We initialize the bottom row in the image at our current |
345 |
< |
* resolution. During sampling, we check super-pixels to the |
345 |
> |
* resolution. During sampling, we check super-pixels to the |
346 |
|
* right and above by calling bigdiff(). If there is a significant |
347 |
|
* difference, we subsample the super-pixels. The testing process |
348 |
|
* includes initialization of the next row. |
349 |
|
*/ |
350 |
< |
xsiz = (((pframe.r-pframe.l)<<pdepth)+ourview.hresolu-1) / |
351 |
< |
ourview.hresolu; |
269 |
< |
ysiz = (((pframe.u-pframe.d)<<pdepth)+ourview.vresolu-1) / |
270 |
< |
ourview.vresolu; |
350 |
> |
xsiz = (((long)(pframe.r-pframe.l)<<pdepth)+hresolu-1) / hresolu; |
351 |
> |
ysiz = (((long)(pframe.u-pframe.d)<<pdepth)+vresolu-1) / vresolu; |
352 |
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rl = (RECT *)malloc(xsiz*sizeof(RECT)); |
353 |
+ |
if (rl == NULL) |
354 |
+ |
return; |
355 |
|
pl = (PNODE **)malloc(xsiz*sizeof(PNODE *)); |
356 |
< |
if (rl == NULL || pl == NULL) |
357 |
< |
error(SYSTEM, "out of memory in rsample"); |
356 |
> |
if (pl == NULL) { |
357 |
> |
free((char *)rl); |
358 |
> |
return; |
359 |
> |
} |
360 |
|
/* |
361 |
|
* Initialize the bottom row. |
362 |
|
*/ |
363 |
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rl[0].l = rl[0].d = 0; |
364 |
< |
rl[0].r = ourview.hresolu; rl[0].u = ourview.vresolu; |
364 |
> |
rl[0].r = hresolu; rl[0].u = vresolu; |
365 |
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pl[0] = findrect(pframe.l, pframe.d, &ptrunk, rl, pdepth); |
366 |
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for (x = 1; x < xsiz; x++) { |
367 |
|
rl[x].l = rl[x].d = 0; |
368 |
< |
rl[x].r = ourview.hresolu; rl[x].u = ourview.vresolu; |
369 |
< |
pl[x] = findrect(pframe.l+((x*ourview.hresolu)>>pdepth), |
368 |
> |
rl[x].r = hresolu; rl[x].u = vresolu; |
369 |
> |
pl[x] = findrect(pframe.l+((x*hresolu)>>pdepth), |
370 |
|
pframe.d, &ptrunk, rl+x, pdepth); |
371 |
|
} |
372 |
|
/* sample the image */ |
373 |
|
for (y = 0; /* y < ysiz */ ; y++) { |
374 |
|
for (x = 0; x < xsiz-1; x++) { |
375 |
< |
if (dev->inpready) |
375 |
> |
if (dev->inpready || errno == ENOMEM) |
376 |
|
goto escape; |
377 |
|
/* |
378 |
|
* Test super-pixel to the right. |
388 |
|
if (y >= ysiz-1) |
389 |
|
break; |
390 |
|
for (x = 0; x < xsiz; x++) { |
391 |
< |
if (dev->inpready) |
391 |
> |
if (dev->inpready || errno == ENOMEM) |
392 |
|
goto escape; |
393 |
|
/* |
394 |
|
* Find super-pixel at this position in next row. |
395 |
|
*/ |
396 |
|
r.l = r.d = 0; |
397 |
< |
r.r = ourview.hresolu; r.u = ourview.vresolu; |
398 |
< |
p = findrect(pframe.l+((x*ourview.hresolu)>>pdepth), |
399 |
< |
pframe.d+(((y+1)*ourview.vresolu)>>pdepth), |
397 |
> |
r.r = hresolu; r.u = vresolu; |
398 |
> |
p = findrect(pframe.l+((x*hresolu)>>pdepth), |
399 |
> |
pframe.d+(((y+1)*vresolu)>>pdepth), |
400 |
|
&ptrunk, &r, pdepth); |
401 |
|
/* |
402 |
|
* Test super-pixel in next row. |
422 |
|
|
423 |
|
int |
424 |
|
refine(p, xmin, ymin, xmax, ymax, pd) /* refine a node */ |
425 |
< |
register PNODE *p; |
425 |
> |
register PNODE *p; |
426 |
|
int xmin, ymin, xmax, ymax; |
427 |
|
int pd; |
428 |
|
{ |
443 |
|
if (p->kid == NULL) { /* subdivide */ |
444 |
|
|
445 |
|
if ((p->kid = newptree()) == NULL) |
446 |
< |
error(SYSTEM, "out of memory in refine"); |
446 |
> |
return(0); |
447 |
|
/* |
448 |
|
* The following paint order can leave a black pixel |
449 |
< |
* when redraw() is called in (*dev->paintr)(). |
449 |
> |
* if redraw() is called in (*dev->paintr)(). |
450 |
|
*/ |
451 |
|
if (p->x >= mx && p->y >= my) |
452 |
|
pcopy(p, p->kid+UR); |