Revision: 73029
http://sourceforge.net/p/brlcad/code/73029
Author: brlcad
Date: 2019-05-09 05:13:23 +0000 (Thu, 09 May 2019)
Log Message:
-----------
write uvs out to disk if we have them. still have plenty of bits left in the
flags bitmask to extend the bot structure forward- and backwards-compatibly.
will want to use the last bit as an extension to a bitflag+nextmemorychunk.
Modified Paths:
--------------
brlcad/trunk/src/librt/primitives/bot/bot.c
Modified: brlcad/trunk/src/librt/primitives/bot/bot.c
===================================================================
--- brlcad/trunk/src/librt/primitives/bot/bot.c 2019-05-09 02:26:47 UTC (rev
73028)
+++ brlcad/trunk/src/librt/primitives/bot/bot.c 2019-05-09 05:13:23 UTC (rev
73029)
@@ -1489,6 +1489,11 @@
+ SIZEOF_NETWORK_LONG * (bip->num_face_normals * 3 + 2); /* indices
into normals array, num_normals, num_face_normals */
}
+ if (bip->bot_flags & RT_BOT_HAS_TEXTURE_UVS) {
+ ep->ext_nbytes += SIZEOF_NETWORK_DOUBLE * bip->num_uvs * 3 /* vertex
uvs */
+ + SIZEOF_NETWORK_LONG * (bip->num_face_uvs * 3 + 2); /* indices
into uvs array, num_uvs, num_face_uvs */
+ }
+
ep->ext_buf = (uint8_t *)bu_malloc(ep->ext_nbytes, "BOT external");
cp = ep->ext_buf;
@@ -1593,6 +1598,49 @@
}
}
+ if (bip->bot_flags & RT_BOT_HAS_TEXTURE_UVS) {
+ *(uint32_t *)&cp[0] = htonl(bip->num_uvs);
+ cp += SIZEOF_NETWORK_LONG;
+ rem -= SIZEOF_NETWORK_LONG;
+
+ *(uint32_t *)&cp[0] = htonl(bip->num_face_uvs);
+ cp += SIZEOF_NETWORK_LONG;
+ rem -= SIZEOF_NETWORK_LONG;
+
+ if (bip->num_uvs > 0) {
+ /* must be double for import and export */
+ double *uvs;
+ uvs = (double
*)bu_malloc(bip->num_uvs*ELEMENTS_PER_VECT*sizeof(double), "uvs");
+
+ /* convert fastf_t to double */
+ for (i = 0; i < bip->num_uvs * ELEMENTS_PER_VECT; i++) {
+ uvs[i] = bip->uvs[i];
+ }
+
+ bu_cv_htond(cp, (unsigned char*)uvs,
bip->num_uvs*ELEMENTS_PER_VECT);
+
+ bu_free(uvs, "uvs");
+
+ cp += SIZEOF_NETWORK_DOUBLE * ELEMENTS_PER_VECT * bip->num_uvs;
+ rem -= SIZEOF_NETWORK_DOUBLE * ELEMENTS_PER_VECT * bip->num_uvs;
+ }
+ if (bip->num_face_uvs > 0) {
+ for (i = 0; i < bip->num_face_uvs; i++) {
+ *(uint32_t *)&cp[0] = htonl(bip->face_uvs[i*ELEMENTS_PER_VECT +
0]);
+ cp += SIZEOF_NETWORK_LONG;
+ rem -= SIZEOF_NETWORK_LONG;
+
+ *(uint32_t *)&cp[0] = htonl(bip->face_uvs[i*ELEMENTS_PER_VECT +
1]);
+ cp += SIZEOF_NETWORK_LONG;
+ rem -= SIZEOF_NETWORK_LONG;
+
+ *(uint32_t *)&cp[0] = htonl(bip->face_uvs[i*ELEMENTS_PER_VECT +
2]);
+ cp += SIZEOF_NETWORK_LONG;
+ rem -= SIZEOF_NETWORK_LONG;
+ }
+ }
+ }
+
return 0;
}
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