| 22 |
|
|
| 23 |
|
|
| 24 |
|
SCENE * |
| 25 |
< |
getscene(sname, flags) /* get new octree reference */ |
| 26 |
< |
char *sname; |
| 27 |
< |
int flags; |
| 25 |
> |
getscene( /* get new octree reference */ |
| 26 |
> |
char *sname, |
| 27 |
> |
int flags |
| 28 |
> |
) |
| 29 |
|
{ |
| 30 |
|
char *pathname; |
| 31 |
< |
register SCENE *sc; |
| 31 |
> |
SCENE *sc; |
| 32 |
|
|
| 33 |
|
flags &= ~IO_ILLEGAL; /* not allowed */ |
| 34 |
|
for (sc = slist; sc != NULL; sc = sc->next) |
| 35 |
|
if (!strcmp(sname, sc->name)) |
| 36 |
|
break; |
| 37 |
< |
if (sc == NULL) { |
| 38 |
< |
sc = (SCENE *)malloc(sizeof(SCENE)); |
| 37 |
> |
if (sc == NULL) { /* new instance? */ |
| 38 |
> |
sc = (SCENE *)calloc(1, sizeof(SCENE)); |
| 39 |
|
if (sc == NULL) |
| 40 |
|
error(SYSTEM, "out of memory in getscene"); |
| 41 |
|
sc->name = savestr(sname); |
| 41 |
– |
sc->nref = 0; |
| 42 |
– |
sc->ldflags = 0; |
| 42 |
|
sc->scube.cutree = EMPTY; |
| 44 |
– |
sc->scube.cuorg[0] = sc->scube.cuorg[1] = |
| 45 |
– |
sc->scube.cuorg[2] = 0.; |
| 46 |
– |
sc->scube.cusize = 0.; |
| 47 |
– |
sc->firstobj = sc->nobjs = 0; |
| 43 |
|
sc->next = slist; |
| 44 |
|
slist = sc; |
| 45 |
|
} |
| 46 |
+ |
sc->nref++; /* bump reference count */ |
| 47 |
+ |
if (!(flags &= ~sc->ldflags)) /* nothing to load? */ |
| 48 |
+ |
return(sc); |
| 49 |
|
if ((pathname = getpath(sname, getrlibpath(), R_OK)) == NULL) { |
| 50 |
|
sprintf(errmsg, "cannot find octree file \"%s\"", sname); |
| 51 |
< |
error(USER, errmsg); |
| 51 |
> |
error(SYSTEM, errmsg); |
| 52 |
|
} |
| 55 |
– |
flags &= ~sc->ldflags; /* skip what's already loaded */ |
| 53 |
|
if (flags & IO_SCENE) |
| 54 |
|
sc->firstobj = nobjects; |
| 55 |
|
if (flags) |
| 57 |
|
if (flags & IO_SCENE) |
| 58 |
|
sc->nobjs = nobjects - sc->firstobj; |
| 59 |
|
sc->ldflags |= flags; |
| 63 |
– |
sc->nref++; /* increase reference count */ |
| 60 |
|
return(sc); |
| 61 |
|
} |
| 62 |
|
|
| 63 |
|
|
| 64 |
|
INSTANCE * |
| 65 |
< |
getinstance(o, flags) /* get instance structure */ |
| 66 |
< |
register OBJREC *o; |
| 67 |
< |
int flags; |
| 65 |
> |
getinstance( /* get instance structure */ |
| 66 |
> |
OBJREC *o, |
| 67 |
> |
int flags |
| 68 |
> |
) |
| 69 |
|
{ |
| 70 |
< |
register INSTANCE *ins; |
| 70 |
> |
INSTANCE *ins; |
| 71 |
|
|
| 72 |
|
flags &= ~IO_ILLEGAL; /* not allowed */ |
| 73 |
|
if ((ins = (INSTANCE *)o->os) == NULL) { |
| 85 |
|
ins->obj = NULL; |
| 86 |
|
o->os = (char *)ins; |
| 87 |
|
} |
| 88 |
< |
if (ins->obj == NULL) |
| 88 |
> |
if (ins->obj == NULL) { |
| 89 |
|
ins->obj = getscene(o->oargs.sarg[0], flags); |
| 90 |
< |
else if ((flags &= ~ins->obj->ldflags)) { |
| 90 |
> |
} else if ((flags &= ~ins->obj->ldflags)) { |
| 91 |
|
if (flags & IO_SCENE) |
| 92 |
|
ins->obj->firstobj = nobjects; |
| 93 |
|
if (flags) |
| 102 |
|
|
| 103 |
|
|
| 104 |
|
void |
| 105 |
< |
freescene(sc) /* release a scene reference */ |
| 106 |
< |
SCENE *sc; |
| 105 |
> |
freescene( /* release a scene reference */ |
| 106 |
> |
SCENE *sc |
| 107 |
> |
) |
| 108 |
|
{ |
| 109 |
|
SCENE shead; |
| 110 |
< |
register SCENE *scp; |
| 110 |
> |
SCENE *scp; |
| 111 |
|
|
| 112 |
|
if (sc == NULL) |
| 113 |
|
return; |
| 114 |
|
if (sc->nref <= 0) |
| 115 |
|
error(CONSISTENCY, "unreferenced scene in freescene"); |
| 116 |
< |
sc->nref--; |
| 119 |
< |
if (sc->nref) /* still in use? */ |
| 116 |
> |
if (--sc->nref) /* still in use? */ |
| 117 |
|
return; |
| 118 |
|
shead.next = slist; /* else remove from our list */ |
| 119 |
|
for (scp = &shead; scp->next != NULL; scp = scp->next) |
| 128 |
|
freestr(sc->name); /* free memory */ |
| 129 |
|
octfree(sc->scube.cutree); |
| 130 |
|
freeobjects(sc->firstobj, sc->nobjs); |
| 131 |
< |
free((void *)sc); |
| 131 |
> |
free(sc); |
| 132 |
|
} |
| 133 |
|
|
| 134 |
|
|
| 135 |
|
void |
| 136 |
< |
freeinstance(o) /* free memory associated with instance */ |
| 137 |
< |
OBJREC *o; |
| 136 |
> |
freeinstance( /* free memory associated with instance */ |
| 137 |
> |
OBJREC *o |
| 138 |
> |
) |
| 139 |
|
{ |
| 140 |
|
if (o->os == NULL) |
| 141 |
|
return; |
| 142 |
|
freescene((*(INSTANCE *)o->os).obj); |
| 143 |
< |
free((void *)o->os); |
| 143 |
> |
free(o->os); |
| 144 |
|
o->os = NULL; |
| 145 |
|
} |
