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Comparing deliantra/server/socket/image.C (file contents):
Revision 1.27 by root, Mon Mar 12 23:45:37 2007 UTC vs.
Revision 1.43 by root, Sun Jul 1 04:08:14 2007 UTC

1/* 1/*
2 * CrossFire, A Multiplayer game 2 * This file is part of Crossfire TRT, the Multiplayer Online Role Playing Game.
3 * 3 *
4 * Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team 4 * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team
5 * Copyright (C) 2001 Mark Wedel 5 * Copyright (©) 2001,2007 Mark Wedel
6 * Copyright (C) 1992 Frank Tore Johansen 6 * Copyright (©) 1992,2007 Frank Tore Johansen
7 * 7 *
8 * This program is free software; you can redistribute it and/or modify 8 * Crossfire TRT is free software; you can redistribute it and/or modify it
9 * it under the terms of the GNU General Public License as published by 9 * under the terms of the GNU General Public License as published by the Free
10 * the Free Software Foundation; either version 2 of the License, or 10 * Software Foundation; either version 2 of the License, or (at your option)
11 * (at your option) any later version. 11 * any later version.
12 * 12 *
13 * This program is distributed in the hope that it will be useful, 13 * This program is distributed in the hope that it will be useful, but
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 * GNU General Public License for more details. 16 * for more details.
17 * 17 *
18 * You should have received a copy of the GNU General Public License 18 * You should have received a copy of the GNU General Public License along
19 * along with this program; if not, write to the Free Software 19 * with Crossfire TRT; if not, write to the Free Software Foundation, Inc. 51
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 * 21 *
22 * The author can be reached via e-mail to <crossfire@schmorp.de> 22 * The authors can be reached via e-mail to <crossfire@schmorp.de>
23 */ 23 */
24 24
25/** \file 25/** \file
26 * Image related communication 26 * Image related communication
27 * 27 *
… …
191 if (mask) 191 if (mask)
192 ns->facecache = 1; 192 ns->facecache = 1;
193} 193}
194 194
195/** 195/**
196 * Client has requested pixmap that it somehow missed getting. 196 * client requested an image. send it rate-limited
197 * This will be called often if the client is 197 * before flushing.
198 * caching images.
199 */ 198 */
200void 199void
201SendFaceCmd (char *buf, int len, client *ns) 200AskFaceCmd (char *buf, int len, client *ns)
202{ 201{
203 uint16 facenum = atoi (buf); 202 int idx = 0, pri = 0;
204 203
205 if (facenum != 0) 204 sscanf (buf, "%d %d", &idx, &pri);
206 esrv_send_face (ns, facenum, 1); 205
206 const facedata *d = face_data (idx, ns->faceset);
207
208 if (!d)
209 return; // doh
210
211 client::ixsend ix;
212
213 ix.pri = pri;
214 ix.idx = idx;
215 ix.ofs = d->data.size ();
216
217 // the by far most common case will be to insert
218 // right at the end, so no looping.
219 auto (i, ns->ixface.end ());
220 for (; i != ns->ixface.begin (); )
221 if (pri >= (--i)->pri)
222 break;
223
224 ns->ixface.insert (i, ix);
225}
226
227/**
228 * Tells client the picture it has to use
229 * to smooth a picture number given as argument.
230 */
231void
232AskSmooth (char *buf, int len, client *ns)
233{
234 ns->send_face (atoi (buf));
235 ns->flush_fx ();
207} 236}
208 237
209// how lame 238// how lame
210static void print_facename (packet &sl, const facedata &d) 239static void print_facename (packet &sl, const facedata &d)
211{ 240{
212 for (int i = 0; i < CHKSUM_SIZE; ++i) 241 for (int i = 0; i < CHKSUM_SIZE; ++i)
213 sl.printf ("%02x", d.chksum [i]); 242 sl.printf ("%02x", d.chksum [i]);
214} 243}
215 244
216// gcfclient uses the server-provided checksum for comparison, 245// gcfclient uses the server-provided checksum for comparison, but always
217// but always wrotes a broken checksum to its cache file, so we 246// writes a broken checksum to its cache file, so we have to provide
218// have to provide gcfclient with a useless checksum just to 247// gcfclient with the same broken (and useless) checksum just to have it
219// have to cache the image despite its bugs. 248// cache the image despite its bugs.
220static uint32 gcfclient_checksum (const facedata *d) 249static uint32 gcfclient_checksum (const facedata *d)
221{ 250{
222 uint32 csum = 0; 251 uint32 csum = 0;
223 252
224 for (std::string::const_iterator i = d->data.begin (); 253 for (std::string::const_iterator i = d->data.begin ();
… …
239 * this is needed for the askface, in which we really do want to send the 268 * this is needed for the askface, in which we really do want to send the
240 * face (and askface is the only place that should be setting it). Otherwise, 269 * face (and askface is the only place that should be setting it). Otherwise,
241 * we look at the facecache, and if set, send the image name. 270 * we look at the facecache, and if set, send the image name.
242 */ 271 */
243void 272void
244esrv_send_face (client *ns, short face_num, int nocache) 273client::send_face (faceidx facenum)
245{ 274{
246 if (face_num <= 0 || face_num >= faces.size ()) 275 // never send face 0. ever. it does not exist.
276 if (!facenum)
277 return;
278
279 const facedata *d = face_data (facenum, faceset);
280
281 if (!d)
247 { 282 {
248 LOG (llevError, "esrv_send_face (%d) out of bounds??\n", face_num); 283 LOG (llevError, "client::send_face (%d) out of bounds??\n", facenum);
249 return; 284 return;
250 } 285 }
251 286
252 const facedata *d = face_data (face_num, ns->faceset); 287 if (faces_sent[facenum])
288 return;
289
290 faces_sent[facenum] = true;
291
292 // if for some reason we let a client without face caching connect,
293 // we better support that decision here and implement it.
294 if (!facecache)
295 return send_image (facenum);
296
297 if (fxix)
298 {
299 fxface.push_back (facenum);
300 return;
301 }
253 302
254 packet sl; 303 packet sl;
255 304
256 if (ns->facecache && !nocache)
257 {
258 if (ns->force_face0) 305 if (force_face0)
259 sl << "face " << uint16 (face_num); 306 sl << "face " << uint16 (facenum);
260 else if (ns->image2) 307 else if (image2)
261 sl << "face2 " << uint16 (face_num) << uint8 (0) << uint32 (ns->force_bad_checksum ? gcfclient_checksum (d) : 0); 308 sl << "face2 " << uint16 (facenum) << uint8 (0) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0);
262 else
263 sl << "face1 " << uint16 (face_num) << uint32 (ns->force_bad_checksum ? gcfclient_checksum (d) : 0);
264
265 // how lame
266 print_facename (sl, *d);
267
268 ns->send_packet (sl);
269 }
270 else 309 else
310 sl << "face1 " << uint16 (facenum) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0);
311
312 // how lame
313 print_facename (sl, *d);
314 send_packet (sl);
315
316 if (EMI_smooth)
317 {
318 faceinfo *f = face_info (facenum);
319
320 if (f->smooth)
321 {
322 send_face (f->smooth);
323
324 packet sl ("smooth");
325
326 sl << uint16 (facenum)
327 << uint16 (f->smooth);
328
329 send_packet (sl);
330 }
271 { 331 }
332}
333
334void client::flush_fx ()
335{
336 while (!fxface.empty ())
337 {
338 packet fx ("fx");
339 packet sx ("sx");
340
341 do
342 {
343 faceidx facenum = fxface.back (); fxface.pop_back ();
344
345 const facedata *d = face_data (facenum, faceset);
346
347 if (d)
348 {
349 fx << ber32 (facenum)
350 << data8 (d->chksum, CHKSUM_SIZE);
351
352 if (smoothing)
353 {
354 faceinfo *f = face_info (facenum);
355
356 if (f->smooth)
357 {
358 send_face (f->smooth);
359 sx << ber32 (facenum)
360 << ber32 (f->smooth)
361 << ber32 (f->smoothlevel);
362 }
363 }
364 }
365 }
366 while (!fxface.empty ()
367 && fx.room () > ber32::size + CHKSUM_SIZE + 1
368 && sx.room () > ber32::size * 3);
369
370 send_packet (fx);
371 if (sx.length () > 3) send_packet (sx);
372 }
373}
374
375void
376client::send_image (faceidx facenum)
377{
378 // never send face 0. ever. it does not exist.
379 if (!facenum)
380 return;
381
382 const facedata *d = face_data (facenum, faceset);
383
384 faces_sent[facenum] = true;
385
386 if (!d)
387 {
388 LOG (llevError, "client::send_image (%d) out of bounds??\n", facenum);
389 return;
390 }
391
392 //TODO: check type here?
393
394 if (force_image_newmap)
395 force_newmap = true;
396
397 packet sl;
398
272 sl << (ns->image2 ? "image2 " : "image ") 399 sl << (image2 ? "image2 " : "image ")
273 << uint32 (face_num); 400 << uint32 (facenum);
274 401
275 if (ns->image2) 402 if (image2)
276 sl << uint8 (0); 403 sl << uint8 (0);
277 404
278 sl << uint32 (d->data.size ()) 405 sl << uint32 (d->data.size ())
279 << data (d->data.data (), d->data.size ()); 406 << data (d->data.data (), d->data.size ());
280 407
281 ns->send_packet (sl); 408 send_packet (sl);
409}
410
411// send all faces of this object to the client
412// this uses more bandwidth initially, but makes
413// animations look much smoother, and every client
414// is supposed to do client-side caching anyways.
415void
416client::send_faces (object *ob)
417{
418 send_face (ob->face);
419
420 if (ob->animation_id)
282 } 421 {
422 animation &anim = animations [ob->animation_id];
283 423
284 ns->faces_sent[face_num] |= NS_FACESENT_FACE; 424 for (int i = 0; i < anim.num_animations; i++)
425 send_face (anim.faces [i]);
426 }
427}
428
429/**
430 * Need to send an animation sequence to the client.
431 * We will send appropriate face commands to the client if we haven't
432 * sent them the face yet (this can become quite costly in terms of
433 * how much we are sending - on the other hand, this should only happen
434 * when the player logs in and picks stuff up.
435 */
436void
437client::send_animation (short anim_num)
438{
439 /* Do some checking on the anim_num we got. Note that the animations
440 * are added in contigous order, so if the number is in the valid
441 * range, it must be a valid animation.
442 */
443 if (anim_num < 0 || anim_num >= animations.size ())
444 {
445 LOG (llevError, "esrv_send_anim (%d) out of bounds??\n", anim_num);
446 return;
447 }
448
449 packet sl ("anim");
450
451 sl << uint16 (anim_num)
452 << uint16 (0); /* flags - not used right now */
453
454 /* Build up the list of faces. Also, send any information (ie, the
455 * the face itself) down to the client.
456 */
457 for (int i = 0; i < animations[anim_num].num_animations; i++)
458 {
459 send_face (animations[anim_num].faces[i]);
460 sl << uint16 (animations[anim_num].faces[i]); /* flags - not used right now */
461 }
462
463 send_packet (sl);
464
465 anims_sent[anim_num] = 1;
285} 466}
286 467
287/** 468/**
288 * Sends the number of images, checksum of the face file, 469 * Sends the number of images, checksum of the face file,
289 * and the image_info file information. See the doc/Developers/protocol 470 * and the image_info file information. See the doc/Developers/protocol
290 * if you want further detail. 471 * if you want further detail.
291 */ 472 */
292
293void 473void
294send_image_info (client *ns, char *params) 474send_image_info (client *ns, char *params)
295{ 475{
296 packet sl; 476 packet sl;
297 477
… …
336 516
337 sl.printf ("replyinfo image_sums %d %d ", start, stop); 517 sl.printf ("replyinfo image_sums %d %d ", start, stop);
338 518
339 for (int i = start; i <= stop && i < faces.size (); i++) 519 for (int i = start; i <= stop && i < faces.size (); i++)
340 { 520 {
341 ns->faces_sent[i] |= NS_FACESENT_FACE; 521 ns->faces_sent[i] = true;
342 522
343 const facedata *d = face_data (i, ns->faceset); 523 const facedata *d = face_data (i, ns->faceset);
344 524
345 if (sl.room () < 2 + 4 + 1 + d->data.size () + 1) 525 if (sl.room () < 2 + 4 + 1 + d->data.size () + 1)
346 break; 526 break;

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