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Comparing deliantra/server/socket/image.C (file contents):
Revision 1.25 by root, Sun Mar 11 20:25:37 2007 UTC vs.
Revision 1.44 by root, Sun Jul 1 05:00:20 2007 UTC

1/* 1/*
2 * CrossFire, A Multiplayer game 2 * This file is part of Crossfire TRT, the Roguelike Realtime MORPG.
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
9 * it under the terms of the GNU General Public License as published by 9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or 10 * the Free Software Foundation, either version 3 of the License, or
11 * (at your option) any later version. 11 * (at your option) 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,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details. 16 * GNU General Public License 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
19 * along with this program; if not, write to the Free Software 19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 * 20 *
22 * The author can be reached via e-mail to <crossfire@schmorp.de> 21 * The authors can be reached via e-mail to <crossfire@schmorp.de>
23 */ 22 */
24 23
25/** \file 24/** \file
26 * Image related communication 25 * Image related communication
27 * 26 *
… …
191 if (mask) 190 if (mask)
192 ns->facecache = 1; 191 ns->facecache = 1;
193} 192}
194 193
195/** 194/**
196 * Client has requested pixmap that it somehow missed getting. 195 * client requested an image. send it rate-limited
197 * This will be called often if the client is 196 * before flushing.
198 * caching images.
199 */ 197 */
200void 198void
201SendFaceCmd (char *buf, int len, client *ns) 199AskFaceCmd (char *buf, int len, client *ns)
202{ 200{
203 uint16 facenum = atoi (buf); 201 int idx = 0, pri = 0;
204 202
205 if (facenum != 0) 203 sscanf (buf, "%d %d", &idx, &pri);
206 esrv_send_face (ns, facenum, 1); 204
205 const facedata *d = face_data (idx, ns->faceset);
206
207 if (!d)
208 return; // doh
209
210 client::ixsend ix;
211
212 ix.pri = pri;
213 ix.idx = idx;
214 ix.ofs = d->data.size ();
215
216 // the by far most common case will be to insert
217 // right at the end, so no looping.
218 auto (i, ns->ixface.end ());
219 for (; i != ns->ixface.begin (); )
220 if (pri >= (--i)->pri)
221 break;
222
223 ns->ixface.insert (i, ix);
224}
225
226/**
227 * Tells client the picture it has to use
228 * to smooth a picture number given as argument.
229 */
230void
231AskSmooth (char *buf, int len, client *ns)
232{
233 ns->send_face (atoi (buf));
234 ns->flush_fx ();
207} 235}
208 236
209// how lame 237// how lame
210static void print_facename (packet &sl, const facedata &d) 238static void print_facename (packet &sl, const facedata &d)
211{ 239{
212 for (int i = 0; i < CHKSUM_SIZE; ++i) 240 for (int i = 0; i < CHKSUM_SIZE; ++i)
213 sl.printf ("%02x", d.chksum [i]); 241 sl.printf ("%02x", d.chksum [i]);
242}
243
244// gcfclient uses the server-provided checksum for comparison, but always
245// writes a broken checksum to its cache file, so we have to provide
246// gcfclient with the same broken (and useless) checksum just to have it
247// cache the image despite its bugs.
248static uint32 gcfclient_checksum (const facedata *d)
249{
250 uint32 csum = 0;
251
252 for (std::string::const_iterator i = d->data.begin ();
253 i != d->data.end ();
254 ++i)
255 {
256 csum = rotate_right (csum);
257 csum += *(uint8 *)&*i;
258 }
259
260 return csum;
214} 261}
215 262
216/** 263/**
217 * Sends a face to a client if they are in pixmap mode 264 * Sends a face to a client if they are in pixmap mode
218 * nothing gets sent in bitmap mode. 265 * nothing gets sent in bitmap mode.
… …
220 * this is needed for the askface, in which we really do want to send the 267 * this is needed for the askface, in which we really do want to send the
221 * face (and askface is the only place that should be setting it). Otherwise, 268 * face (and askface is the only place that should be setting it). Otherwise,
222 * we look at the facecache, and if set, send the image name. 269 * we look at the facecache, and if set, send the image name.
223 */ 270 */
224void 271void
225esrv_send_face (client *ns, short face_num, int nocache) 272client::send_face (faceidx facenum)
226{ 273{
227 if (face_num <= 0 || face_num >= faces.size ()) 274 // never send face 0. ever. it does not exist.
275 if (!facenum)
276 return;
277
278 const facedata *d = face_data (facenum, faceset);
279
280 if (!d)
228 { 281 {
229 LOG (llevError, "esrv_send_face (%d) out of bounds??\n", face_num); 282 LOG (llevError, "client::send_face (%d) out of bounds??\n", facenum);
230 return; 283 return;
231 } 284 }
232 285
233 const facedata *d = face_data (face_num, ns->faceset); 286 if (faces_sent[facenum])
287 return;
288
289 faces_sent[facenum] = true;
290
291 // if for some reason we let a client without face caching connect,
292 // we better support that decision here and implement it.
293 if (!facecache)
294 return send_image (facenum);
295
296 if (fxix)
297 {
298 fxface.push_back (facenum);
299 return;
300 }
234 301
235 packet sl; 302 packet sl;
236 303
237 if (ns->facecache && !nocache) 304 if (force_face0)
238 { 305 sl << "face " << uint16 (facenum);
239 sl << (ns->image2 ? "face2 " : "face1 ") 306 else if (image2)
240 << uint16 (face_num); 307 sl << "face2 " << uint16 (facenum) << uint8 (0) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0);
241
242 if (ns->image2)
243 sl << uint8 (0);
244
245 sl << uint32 (0);
246
247 // how lame
248 print_facename (sl, *d);
249
250 ns->send_packet (sl);
251 }
252 else 308 else
309 sl << "face1 " << uint16 (facenum) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0);
310
311 // how lame
312 print_facename (sl, *d);
313 send_packet (sl);
314
315 if (EMI_smooth)
316 {
317 faceinfo *f = face_info (facenum);
318
319 if (f->smooth)
320 {
321 send_face (f->smooth);
322
323 packet sl ("smooth");
324
325 sl << uint16 (facenum)
326 << uint16 (f->smooth);
327
328 send_packet (sl);
329 }
253 { 330 }
331}
332
333void client::flush_fx ()
334{
335 while (!fxface.empty ())
336 {
337 packet fx ("fx");
338 packet sx ("sx");
339
340 do
341 {
342 faceidx facenum = fxface.back (); fxface.pop_back ();
343
344 const facedata *d = face_data (facenum, faceset);
345
346 if (d)
347 {
348 fx << ber32 (facenum)
349 << data8 (d->chksum, CHKSUM_SIZE);
350
351 if (smoothing)
352 {
353 faceinfo *f = face_info (facenum);
354
355 if (f->smooth)
356 {
357 send_face (f->smooth);
358 sx << ber32 (facenum)
359 << ber32 (f->smooth)
360 << ber32 (f->smoothlevel);
361 }
362 }
363 }
364 }
365 while (!fxface.empty ()
366 && fx.room () > ber32::size + CHKSUM_SIZE + 1
367 && sx.room () > ber32::size * 3);
368
369 send_packet (fx);
370 if (sx.length () > 3) send_packet (sx);
371 }
372}
373
374void
375client::send_image (faceidx facenum)
376{
377 // never send face 0. ever. it does not exist.
378 if (!facenum)
379 return;
380
381 const facedata *d = face_data (facenum, faceset);
382
383 faces_sent[facenum] = true;
384
385 if (!d)
386 {
387 LOG (llevError, "client::send_image (%d) out of bounds??\n", facenum);
388 return;
389 }
390
391 //TODO: check type here?
392
393 if (force_image_newmap)
394 force_newmap = true;
395
396 packet sl;
397
254 sl << (ns->image2 ? "image2 " : "image ") 398 sl << (image2 ? "image2 " : "image ")
255 << uint32 (face_num); 399 << uint32 (facenum);
256 400
257 if (ns->image2) 401 if (image2)
258 sl << uint8 (0); 402 sl << uint8 (0);
259 403
260 sl << uint32 (d->data.size ()) 404 sl << uint32 (d->data.size ())
261 << data (d->data.data (), d->data.size ()); 405 << data (d->data.data (), d->data.size ());
262 406
263 ns->send_packet (sl); 407 send_packet (sl);
408}
409
410// send all faces of this object to the client
411// this uses more bandwidth initially, but makes
412// animations look much smoother, and every client
413// is supposed to do client-side caching anyways.
414void
415client::send_faces (object *ob)
416{
417 send_face (ob->face);
418
419 if (ob->animation_id)
264 } 420 {
421 animation &anim = animations [ob->animation_id];
265 422
266 ns->faces_sent[face_num] |= NS_FACESENT_FACE; 423 for (int i = 0; i < anim.num_animations; i++)
424 send_face (anim.faces [i]);
425 }
426}
427
428/**
429 * Need to send an animation sequence to the client.
430 * We will send appropriate face commands to the client if we haven't
431 * sent them the face yet (this can become quite costly in terms of
432 * how much we are sending - on the other hand, this should only happen
433 * when the player logs in and picks stuff up.
434 */
435void
436client::send_animation (short anim_num)
437{
438 /* Do some checking on the anim_num we got. Note that the animations
439 * are added in contigous order, so if the number is in the valid
440 * range, it must be a valid animation.
441 */
442 if (anim_num < 0 || anim_num >= animations.size ())
443 {
444 LOG (llevError, "esrv_send_anim (%d) out of bounds??\n", anim_num);
445 return;
446 }
447
448 packet sl ("anim");
449
450 sl << uint16 (anim_num)
451 << uint16 (0); /* flags - not used right now */
452
453 /* Build up the list of faces. Also, send any information (ie, the
454 * the face itself) down to the client.
455 */
456 for (int i = 0; i < animations[anim_num].num_animations; i++)
457 {
458 send_face (animations[anim_num].faces[i]);
459 sl << uint16 (animations[anim_num].faces[i]); /* flags - not used right now */
460 }
461
462 send_packet (sl);
463
464 anims_sent[anim_num] = 1;
267} 465}
268 466
269/** 467/**
270 * Sends the number of images, checksum of the face file, 468 * Sends the number of images, checksum of the face file,
271 * and the image_info file information. See the doc/Developers/protocol 469 * and the image_info file information. See the doc/Developers/protocol
272 * if you want further detail. 470 * if you want further detail.
273 */ 471 */
274
275void 472void
276send_image_info (client *ns, char *params) 473send_image_info (client *ns, char *params)
277{ 474{
278 packet sl; 475 packet sl;
279 476
… …
318 515
319 sl.printf ("replyinfo image_sums %d %d ", start, stop); 516 sl.printf ("replyinfo image_sums %d %d ", start, stop);
320 517
321 for (int i = start; i <= stop && i < faces.size (); i++) 518 for (int i = start; i <= stop && i < faces.size (); i++)
322 { 519 {
323 ns->faces_sent[i] |= NS_FACESENT_FACE; 520 ns->faces_sent[i] = true;
324 521
325 const facedata *d = face_data (i, ns->faceset); 522 const facedata *d = face_data (i, ns->faceset);
326 523
327 if (sl.room () < 2 + 4 + 1 + d->data.size () + 1) 524 if (sl.room () < 2 + 4 + 1 + d->data.size () + 1)
328 break; 525 break;

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