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#include <stdio.h> |
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#include <time.h> |
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#include "standard.h" |
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#include "platform.h" |
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#include "standard.h" |
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#include "octree.h" |
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#include "object.h" |
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#include "otypes.h" |
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static double ogetflt(void); |
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static long ogetint(int); |
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static char *ogetstr(char *); |
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static int nonsurfinset(OBJECT *); |
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static int nonsurfintree(OCTREE ot); |
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static void octerror(int etyp, char *msg); |
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static void skiptree(void); |
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static OCTREE getfullnode(void), gettree(void); |
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int |
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readoct(inpspec, load, scene, ofn) /* read in octree file or stream */ |
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char *inpspec; |
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int load; |
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CUBE *scene; |
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char *ofn[]; |
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readoct( /* read in octree file or stream */ |
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char *inpspec, |
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int load, |
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CUBE *scene, |
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char *ofn[] |
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) |
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{ |
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time_t oct_t = 0; |
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time_t last_it = 0; |
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char sbuf[512]; |
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int nf; |
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int i; |
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inpspec); |
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error(SYSTEM, errmsg); |
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} |
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oct_t = fddate(fileno(infp)); |
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} |
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#ifdef getc_unlocked /* avoid stupid semaphores */ |
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flockfile(infp); |
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#endif |
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SET_FILE_BINARY(infp); |
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/* get header */ |
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if (checkheader(infp, OCTFMT, load&IO_INFO ? stdout : (FILE *)NULL) < 0) |
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readobj(sbuf); |
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if (load & IO_FILES) |
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ofn[nf] = savqstr(sbuf); |
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if (oct_t > last_it) { |
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time_t t = fdate(sbuf); |
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if (t > last_it) |
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last_it = t; |
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} |
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nf++; |
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} |
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if (load & IO_FILES) |
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else if (load & IO_SCENE && nf == 0) |
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skiptree(); |
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if (load & IO_SCENE) /* get the scene */ |
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if (load & IO_SCENE) { /* get the scene */ |
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if (nf == 0) { |
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/* load binary scene data */ |
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readscene(infp, objsize); |
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if (nobjects != objorig+fnobjects) |
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octerror(USER, "bad object count; octree stale?"); |
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/* check for non-surfaces */ |
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if (dosets(nonsurfinset)) |
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if (oct_t <= last_it && nonsurfintree(scene->cutree)) |
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octerror(USER, "modifier in tree; octree stale?"); |
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} |
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} |
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/* close the input */ |
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if (infn[0] == '!') |
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pclose(infp); |
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else |
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if (inpspec[0] == '!') { |
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if (pclose(infp) != 0) { |
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sprintf(errmsg, "bad status from \"%s\"", inpspec); |
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error(WARNING, errmsg); |
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} |
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} else if (infp != stdin) |
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fclose(infp); |
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#ifdef getc_unlocked |
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else |
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funlockfile(infp); |
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#endif |
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return(nf); |
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} |
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static char * |
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ogetstr(s) /* get null-terminated string */ |
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char *s; |
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ogetstr(char *s) /* get null-terminated string */ |
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{ |
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extern char *getstr(); |
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|
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if (getstr(s, infp) == NULL) |
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octerror(USER, "truncated octree"); |
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return(s); |
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getfullnode() /* get a set, return fullnode */ |
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{ |
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OBJECT set[MAXSET+1]; |
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register int i; |
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register long m; |
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int i; |
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long m; |
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if ((set[0] = ogetint(objsize)) > MAXSET) |
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octerror(USER, "bad set in getfullnode"); |
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static long |
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ogetint(siz) /* get a siz-byte integer */ |
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int siz; |
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ogetint(int siz) /* get a siz-byte integer */ |
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{ |
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extern long getint(); |
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register long r; |
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long r; |
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r = getint(siz, infp); |
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if (feof(infp)) |
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static double |
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ogetflt() /* get a floating point number */ |
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{ |
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extern double getflt(); |
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double r; |
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r = getflt(infp); |
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static OCTREE |
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gettree() /* get a pre-ordered octree */ |
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{ |
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register OCTREE ot; |
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register int i; |
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OCTREE ot; |
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int i; |
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|
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switch (getc(infp)) { |
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case OT_EMPTY: |
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default: |
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octerror(USER, "damaged octree"); |
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} |
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return NULL; /* pro forma return */ |
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return EMPTY; /* pro forma return */ |
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} |
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static int |
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nonsurfinset(os) /* check set for modifier */ |
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register OBJECT *os; |
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nonsurfintree(OCTREE ot) /* check tree for modifiers */ |
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{ |
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register OBJECT s; |
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register int i; |
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OBJECT set[MAXSET+1]; |
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int i; |
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|
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for (i = *os; i-- > 0; ) |
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if ((s = *++os) >= objorig && s < objorig+fnobjects && |
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ismodifier(objptr(s)->otype)) |
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if (isempty(ot)) |
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return(0); |
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if (istree(ot)) { |
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for (i = 0; i < 8; i++) |
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if (nonsurfintree(octkid(ot, i))) |
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return(1); |
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return(0); |
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} |
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objset(set, ot); |
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for (i = set[0]; i > 0; i-- ) |
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if (ismodifier(objptr(set[i])->otype)) |
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return(1); |
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return(0); |
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} |
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static void |
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skiptree(void) /* skip octree on input */ |
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{ |
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< |
register int i; |
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> |
int i; |
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|
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switch (getc(infp)) { |
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case OT_EMPTY: |
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static void |
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octerror(etyp, msg) /* octree error */ |
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< |
int etyp; |
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< |
char *msg; |
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> |
octerror(int etyp, char *msg) /* octree error */ |
270 |
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{ |
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char msgbuf[128]; |
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