/*------------------------------------------------------------------------
|
| GetSpotlightCount3ds
|
+--------------------------------------------------------------------*/
ulong3ds GetSpotlightCount3ds(database3ds *db)
{
chunk3ds *dlite, *spotl;
ulong3ds spotcount = 0, i;
if (db == NULL)
SET_ERROR_RETURNR(ERR_INVALID_ARG, 0);
/* Update the index to named objects if the list has changed recently */
UpdateNamedObjectList3ds(db);
if (db->objlist == NULL) return 0;
/* Scan through the list of named objects looking for lights */
for (i = 0; i < db->objlist->count; i++)
{
/* Search each object for a light chunk */
FindChunk3ds(db->objlist->list[i].chunk, N_DIRECT_LIGHT, &dlite);
/* if one was found, check to see if its a spotlight */
if (dlite != NULL)
{
FindChunk3ds(dlite, DL_SPOTLIGHT, &spotl);
/* if it is a spotlight, then increment the count */
if (spotl != NULL)
spotcount++;
}
}
return spotcount;
}
/* Scans the database for KFHDR chunk and returnes its release level */
releaselevel3ds GetKfRelease3ds(database3ds *db)
{
chunk3ds *c = NULL, *kfdata;
if (db == NULL)
SET_ERROR_RETURNR(ERR_INVALID_ARG, ReleaseNotKnown3ds);
if (db->topchunk == NULL)
SET_ERROR_RETURNR(ERR_INVALID_DATABASE, ReleaseNotKnown3ds);
/* If the database is a 3DS file */
if ((db->topchunk->tag == M3DMAGIC || db->topchunk->tag == CMAGIC))
{
FindChunk3ds(db->topchunk, KFDATA, &kfdata);
if (kfdata != NULL)
FindChunk3ds(db->topchunk, KFHDR, &c);
if (c != NULL)
{
KFHdr *d;
d = ReadChunkData3ds(c);
if (d->revision == 1) return Release13ds;
else
if (d->revision == 2) return Release23ds;
else
if (d->revision == 5) return Release33ds;
else
return ReleaseNotKnown3ds;
}
else
return ReleaseNotKnown3ds;
}
else
return ReleaseNotKnown3ds;
}
