Val view_parse(int pass, Pval *pl) { Val v = {V_NULL, 0}; if (pass == T_EXEC) { View *view = initview(); Vector3 ref = pvl_get_v3(pl, "from", v3_make(0,-5,0)); Vector3 at = pvl_get_v3(pl, "at", v3_make(0,0,0)); Vector3 up = pvl_get_v3(pl, "up", v3_make(0,0,1)); double fov = pvl_get_num(pl, "fov", 90); double w = pvl_get_num(pl, "imgw", 320); double h = pvl_get_num(pl, "imgh", 240); lookat(view, ref.x, ref.y, ref.z, at.x, at.y, at.z, up.x, up.y, up.z); setviewpoint(ref.x, ref.y, ref.z); setviewnormal(at.x - ref.x ,at.y - ref.y, at.z - ref.z); makeviewV(); perspective(view, fov * DTOR, w/h, 1.0, 100000.0); viewport(view, 0.,0., w, h); v.type = V_CAMERA; v.u.v = view; } return v; }
int main(int argc, char** argv) { register char* s; register Rule_t* r; register List_t* p; int i; int args; int trace; char* t; char* buf; char* tok; Var_t* v; Stat_t st; Stat_t ds; Sfio_t* tmp; /* * initialize dynamic globals */ version = strdup(fmtident(version)); setlocale(LC_ALL, ""); error_info.id = idname; error_info.version = version; error_info.exit = finish; error_info.auxilliary = intercept; if (pathcheck(PATHCHECK, error_info.id, NiL)) return 1; error(-99, "startup"); settypes("*?[]", C_MATCH); settypes("+-|=", C_OPTVAL); settypes(" \t\n", C_SEP); settype(0, C_SEP); settypes(" \t\v\n:+&=;\"\\", C_TERMINAL); settype(0, C_TERMINAL); settypes("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_", C_ID1|C_ID2|C_VARIABLE1|C_VARIABLE2); settypes(".", C_VARIABLE1|C_VARIABLE2); settypes("0123456789", C_ID2|C_VARIABLE2); /* * close garbage fd's -- we'll be tidy from this point on * 3 may be /dev/tty on some systems * 0..9 for user redirection in shell * 10..19 left open by bugs in some shells * error_info.fd interited from parent * any close-on-exec fd's must have been done on our behalf */ i = 3; if (isatty(i)) i++; for (; i < 20; i++) if (i != error_info.fd && !fcntl(i, F_GETFD, 0)) close(i); /* * allocate the very temporary buffer streams */ internal.met = sfstropen(); internal.nam = sfstropen(); internal.tmp = sfstropen(); internal.val = sfstropen(); internal.wrk = sfstropen(); tmp = sfstropen(); sfstrrsrv(tmp, 2 * MAXNAME); /* * initialize the code and hash tables */ initcode(); inithash(); /* * set the default state */ state.alias = 1; state.exec = 1; state.global = 1; state.init = 1; #if DEBUG state.intermediate = 1; #endif state.io[0] = sfstdin; state.io[1] = sfstdout; state.io[2] = sfstderr; state.jobs = 1; state.pid = getpid(); state.readstate = MAXVIEW; state.scan = 1; state.start = CURTIME; state.stateview = -1; state.tabstops = 8; state.targetview = -1; #if BINDINDEX state.view[0].path = makerule("."); #else state.view[0].path = "."; #endif state.view[0].pathlen = 1; state.writeobject = state.writestate = "-"; /* * pwd initialization * * for project management, if . is group|other writeable * then change umask() for similar write protections */ buf = sfstrbase(tmp); internal.pwd = (s = getcwd(buf, MAXNAME)) ? strdup(s) : strdup("."); internal.pwdlen = strlen(internal.pwd); if (stat(".", &st)) error(3, "cannot stat ."); if (S_ISDIR(st.st_mode) && (st.st_mode & (S_IWGRP|S_IWOTH))) umask(umask(0) & ~(st.st_mode & (S_IWGRP|S_IWOTH))); /* * set some variable default values */ hashclear(table.var, HASH_ALLOCATE); setvar(external.make, argv[0], V_import); t = "lib/make"; setvar(external.lib, strdup((s = pathpath(t, argv[0], PATH_EXECUTE, buf, SF_BUFSIZE)) ? s : t), V_import); setvar(external.pwd, internal.pwd, V_import); setvar(external.version, version, V_import); hashset(table.var, HASH_ALLOCATE); /* * read the environment */ readenv(); if (v = getvar(external.nproc)) state.jobs = (int)strtol(v->value, NiL, 0); if ((v = getvar(external.pwd)) && !streq(v->value, internal.pwd)) { if (!stat(v->value, &st) && !stat(internal.pwd, &ds) && st.st_ino == ds.st_ino && st.st_dev == ds.st_dev) { free(internal.pwd); internal.pwd = strdup(v->value); internal.pwdlen = strlen(v->value); } else { v->property &= ~V_import; v->property |= V_free; v->value = strdup(internal.pwd); } } /* * initialize the internal rule pointers */ initrule(); /* * read the static initialization script */ sfputr(tmp, initstatic, -1); parse(NiL, sfstruse(tmp), "initstatic", NiL); /* * check and read the args file */ if (s = colonlist(tmp, external.args, 1, ' ')) { i = fs3d(0); tok = tokopen(s, 1); while (s = tokread(tok)) if (vecargs(vecfile(s), &argc, &argv) >= 0) break; else if (errno != ENOENT) error(1, "cannot read args file %s", s); tokclose(tok); fs3d(i); } state.argf = newof(0, int, argc, 0); /* * set the command line options * read the command line assignments * mark the command line scripts and targets */ state.init = 0; state.readonly = 1; state.argv = argv; state.argc = argc; if ((args = scanargs(state.argc, state.argv, state.argf)) < 0) return 1; state.readonly = 0; state.init = 1; if (state.base) state.readstate = 0; if (state.compileonly) { state.forceread = 1; state.virtualdot = 0; } /* * tone down the bootstrap noise */ if ((trace = error_info.trace) == -1) error_info.trace = 0; /* * check explicit environment overrides */ if (s = colonlist(tmp, external.import, 1, ' ')) { tok = tokopen(s, 1); while (s = tokread(tok)) { if (i = *s == '!') s++; if (v = getvar(s)) { if (i) v->property &= ~V_import; else v->property |= V_readonly; } } tokclose(tok); } /* * set up the traps */ inittrap(); /* * announce the version */ if (error_info.trace < 0) { errno = 0; error(error_info.trace, "%s [%d %s]", version, state.pid, timestr(state.start)); } /* * initialize the views */ state.global = 0; state.user = 1; initview(); /* * check for mam */ if (state.mam.out) { if (!state.mam.statix || *state.mam.label) error_info.write = mamerror; if (state.mam.regress || state.regress) { sfprintf(state.mam.out, "%sinfo mam %s %05d\n", state.mam.label, state.mam.type, state.mam.parent); if (state.mam.regress) sfprintf(state.mam.out, "%sinfo start regression\n", state.mam.label); } else { sfprintf(state.mam.out, "%sinfo mam %s %05d 1994-07-17 %s\n", state.mam.label, state.mam.type, state.mam.parent, version); if (!state.mam.statix || *state.mam.label) { sfprintf(state.mam.out, "%sinfo start %lu\n", state.mam.label, CURTIME); if (!state.mam.root || streq(state.mam.root, internal.pwd)) sfprintf(state.mam.out, "%sinfo pwd %s\n", state.mam.label, internal.pwd); else sfprintf(state.mam.out, "%sinfo pwd %s %s\n", state.mam.label, state.mam.root, mamname(makerule(internal.pwd))); buf = sfstrbase(tmp); if (state.fsview && !mount(NiL, buf, FS3D_GET|FS3D_ALL|FS3D_SIZE(sfstrsize(tmp)), NiL)) sfprintf(state.mam.out, "%sinfo view %s\n", state.mam.label, buf); } } } /* * read the dynamic initialization script */ if ((i = error_info.trace) > -20) error_info.trace = 0; sfputr(tmp, initdynamic, -1); parse(NiL, sfstruse(tmp), "initdynamic", NiL); error_info.trace = i; state.user = 0; state.init = 0; /* * read the explicit makefiles * readfile() handles the base and global rules * * NOTE: internal.tmplist is used to handle the effects of * load() on internal list pointers */ compref(NiL, 0); if (p = internal.makefiles->prereqs) { p = internal.tmplist->prereqs = listcopy(p); for (; p; p = p->next) readfile(p->rule->name, COMP_FILE, NiL); freelist(internal.tmplist->prereqs); internal.tmplist->prereqs = 0; } /* * if no explicit makefiles then try external.{convert,files} */ if (!state.makefile) { int sep; Sfio_t* exp; Sfio_t* imp; exp = 0; imp = sfstropen(); sep = 0; s = 0; if (*(t = getval(external.convert, VAL_PRIMARY))) { sfputr(tmp, t, 0); sfstrrsrv(tmp, MAXNAME); tok = tokopen(sfstrbase(tmp), 0); while (s = tokread(tok)) { if (!exp) exp = sfstropen(); if (t = colonlist(exp, s, 0, ' ')) { t = tokopen(t, 0); while (s = tokread(t)) { if (readfile(s, COMP_INCLUDE|COMP_DONTCARE, NiL)) break; if (sep) sfputc(imp, ','); else sep = 1; sfputr(imp, s, -1); } tokclose(t); if (s) break; } if (!(s = tokread(tok))) break; } tokclose(tok); sfstrseek(tmp, 0, SEEK_SET); } if (!s && (s = colonlist(tmp, external.files, 1, ' '))) { tok = tokopen(s, 1); while (s = tokread(tok)) { if (readfile(s, COMP_INCLUDE|COMP_DONTCARE, NiL)) break; if (sep) sfputc(imp, ','); else sep = 1; sfputr(imp, s, -1); } tokclose(tok); } if (!s) { /* * this readfile() pulls in the default base rules * that might resolve any delayed self-documenting * options in optcheck() */ if (readfile("-", COMP_FILE, NiL)) optcheck(1); if (*(s = sfstruse(imp))) error(state.errorid ? 1 : 3, "a makefile must be specified when %s omitted", s); else error(state.errorid ? 1 : 3, "a makefile must be specified"); } sfstrclose(imp); if (exp) sfstrclose(exp); } /* * validate external command line options */ optcheck(1); /* * check for listing of variable and rule definitions */ if (state.list) { dump(sfstdout, 0); return 0; } /* * check if makefiles to be compiled */ if (state.compile && !state.virtualdot && state.writeobject) { /* * make the compinit trap */ if (r = getrule(external.compinit)) { state.reading = 1; maketop(r, P_dontcare|P_foreground, NiL); state.reading = 0; } if (state.exec && state.objectfile) { message((-2, "compiling makefile input into %s", state.objectfile)); compile(state.objectfile, NiL); } /* * make the compdone trap */ if (r = getrule(external.compdone)) { state.reading = 1; maketop(r, P_dontcare|P_foreground, NiL); state.reading = 0; } } /* * makefile read cleanup */ if (state.compileonly) return 0; compref(NiL, 0); sfstrclose(tmp); state.compile = COMPILED; if (state.believe) { if (!state.maxview) state.believe = 0; else if (state.fsview) error(3, "%s: option currently works in 2d only", optflag(OPT_believe)->name); } /* * read the state file */ readstate(); /* * place the command line targets in internal.args */ if (internal.main->dynamic & D_dynamic) dynamic(internal.main); internal.args->prereqs = p = 0; for (i = args; i < state.argc; i++) if (state.argf[i] & ARG_TARGET) { List_t* q; q = cons(makerule(state.argv[i]), NiL); if (p) p = p->next = q; else internal.args->prereqs = p = q; } /* * the engine bootstrap is complete -- start user activities */ state.user = 1; /* * make the makeinit trap */ if (r = getrule(external.makeinit)) maketop(r, P_dontcare|P_foreground, NiL); /* * read the command line scripts */ for (i = args; i < state.argc; i++) if (state.argf[i] & ARG_SCRIPT) { state.reading = 1; parse(NiL, state.argv[i], "command line script", NiL); state.reading = 0; } /* * freeze the parameter files and candidate state variables */ state.user = 2; candidates(); /* * make the init trap */ if (r = getrule(external.init)) maketop(r, P_dontcare|P_foreground, NiL); /* * internal.args default to internal.main */ if (!internal.args->prereqs && internal.main->prereqs) internal.args->prereqs = listcopy(internal.main->prereqs); /* * turn up the volume again */ if (!error_info.trace) error_info.trace = trace; /* * make the prerequisites of internal.args */ if (internal.args->prereqs) while (internal.args->prereqs) { /* * we explicitly allow internal.args modifications */ r = internal.args->prereqs->rule; internal.making->prereqs = internal.args->prereqs; internal.args->prereqs = internal.args->prereqs->next; internal.making->prereqs->next = 0; maketop(r, 0, NiL); } else if (state.makefile) error(3, "%s: a main target must be specified", state.makefile); /* * finish up */ finish(0); return 0; }
// load settings void loadsettings() { minilayer *ref; char *savname; FILE *file; miniv3f e; int type; float a,p; miniscene::MINISCENE_PARAMS prms; miniearth::MINIEARTH_PARAMS eprms; miniterrain::MINITERRAIN_PARAMS tprms; int flag; initview(viewer->getinitial(),0.0,-VIEWER_FOVY/3,VIEWER_UPLIFT); ref=viewer->getearth()->getreference(); if (ref!=NULL) savname=ref->getcache()->getfile(VIEWER_SAVFILE); else savname=strdup(VIEWER_SAVFILE); if (savname!=NULL) { viewer->get(prms); viewer->getearth()->get(eprms); viewer->getearth()->getterrain()->get(tprms); if ((file=fopen(savname,"rb"))==NULL) { free(savname); return; } free(savname); // load essential parameters: if (fscanf(file,"ex=%f\n",&e.x)!=1) ERRORMSG(); if (fscanf(file,"ey=%f\n",&e.y)!=1) ERRORMSG(); if (fscanf(file,"ez=%f\n",&e.z)!=1) ERRORMSG(); if (fscanf(file,"type=%d\n",&type)!=1) ERRORMSG(); if (fscanf(file,"angle=%f\n",&a)!=1) ERRORMSG(); if (fscanf(file,"pitch=%f\n",&p)!=1) ERRORMSG(); if (fscanf(file,"farp=%f\n",&prms.farp)!=1) ERRORMSG(); if (fscanf(file,"relres=%f\n",&tprms.relres1)!=1) ERRORMSG(); if (fscanf(file,"relrange=%f\n",&tprms.relrange1)!=1) ERRORMSG(); if (fscanf(file,"fovy=%f\n",&prms.fovy)!=1) ERRORMSG(); if (fscanf(file,"sealevel=%g\n",&tprms.sealevel)!=1) ERRORMSG(); if (tprms.sealevel<-MAXFLOAT/2) tprms.sealevel=-MAXFLOAT; // load optional parameters: if (fscanf(file,"usefog=%d\n",&flag)!=1) ERRORMSG(); eprms.usefog=flag; if (fscanf(file,"usecontours=%d\n",&flag)!=1) ERRORMSG(); eprms.usecontours=flag; if (fscanf(file,"usebathymap=%d\n",&flag)!=1) ERRORMSG(); eprms.usebathymap=flag; if (fscanf(file,"useskydome=%d\n",&flag)!=1) ERRORMSG(); eprms.useskydome=flag; if (fscanf(file,"usewaypoints=%d\n",&flag)!=1) ERRORMSG(); eprms.usewaypoints=flag; if (fscanf(file,"usebricks=%d\n",&flag)!=1) ERRORMSG(); eprms.usebricks=flag; if (fscanf(file,"fogdensity=%f\n",&eprms.fogdensity)!=1) ERRORMSG(); fclose(file); viewer->getearth()->getterrain()->set(tprms); viewer->getearth()->set(eprms); viewer->set(prms); initview(minicoord(miniv4d(e),(minicoord::MINICOORD)type),a,p); } }