| 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 | */ |
| 200 | void |
198 | void |
| 201 | SendFaceCmd (char *buf, int len, client *ns) |
199 | AskFaceCmd (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 | auto (pos, ns->ixface.end ()); |
|
|
217 | |
|
|
218 | if (ns->fxix < 2) |
|
|
219 | { |
|
|
220 | // gcfclient does not support prioritising, older cfplus versions |
|
|
221 | // do not support interleaved transfers. |
|
|
222 | if (!ns->ixface.empty ()) |
|
|
223 | pos = ns->ixface.end () - 1; |
|
|
224 | } |
|
|
225 | else |
|
|
226 | { |
|
|
227 | // the by far most common case will be to insert |
|
|
228 | // near the end, so little looping. |
|
|
229 | while (pos != ns->ixface.begin ()) |
|
|
230 | { |
|
|
231 | --pos; |
|
|
232 | |
|
|
233 | // sort within 2k bins, to slightly prefer smaller images |
|
|
234 | if (pri > pos->pri || (pri == pos->pri && (ix.ofs >> 11) <= (pos->ofs >> 11))) |
|
|
235 | { |
|
|
236 | ++pos; |
|
|
237 | break; |
|
|
238 | } |
|
|
239 | } |
|
|
240 | } |
|
|
241 | |
|
|
242 | ns->ixface.insert (pos, ix); |
|
|
243 | |
|
|
244 | #if 0 |
|
|
245 | for (auto (i, ns->ixface.begin ()); i != ns->ixface.end (); ++i) |
|
|
246 | fprintf (stderr, "<%d,%d> ", i->pri, i->ofs); |
|
|
247 | fprintf (stderr, "\n"); |
|
|
248 | #endif |
|
|
249 | } |
|
|
250 | |
|
|
251 | /** |
|
|
252 | * Tells client the picture it has to use |
|
|
253 | * to smooth a picture number given as argument. |
|
|
254 | */ |
|
|
255 | void |
|
|
256 | AskSmooth (char *buf, int len, client *ns) |
|
|
257 | { |
|
|
258 | ns->send_face (atoi (buf)); |
|
|
259 | ns->flush_fx (); |
| 207 | } |
260 | } |
| 208 | |
261 | |
| 209 | // how lame |
262 | // how lame |
| 210 | static void print_facename (packet &sl, const facedata &d) |
263 | static void print_facename (packet &sl, const facedata &d) |
| 211 | { |
264 | { |
| 212 | sl.printf ("%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x" |
265 | for (int i = 0; i < CHKSUM_SIZE; ++i) |
| 213 | "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x", |
266 | sl.printf ("%02x", d.chksum [i]); |
| 214 | d.chksum [ 0], d.chksum [ 1], d.chksum [ 2], d.chksum [ 3], |
267 | } |
| 215 | d.chksum [ 4], d.chksum [ 5], d.chksum [ 6], d.chksum [ 7], |
268 | |
| 216 | d.chksum [ 8], d.chksum [ 9], d.chksum [10], d.chksum [11], |
269 | // gcfclient uses the server-provided checksum for comparison, but always |
| 217 | d.chksum [12], d.chksum [13], d.chksum [14], d.chksum [15]); |
270 | // writes a broken checksum to its cache file, so we have to provide |
|
|
271 | // gcfclient with the same broken (and useless) checksum just to have it |
|
|
272 | // cache the image despite its bugs. |
|
|
273 | static uint32 gcfclient_checksum (const facedata *d) |
|
|
274 | { |
|
|
275 | uint32 csum = 0; |
|
|
276 | |
|
|
277 | for (std::string::const_iterator i = d->data.begin (); |
|
|
278 | i != d->data.end (); |
|
|
279 | ++i) |
|
|
280 | { |
|
|
281 | csum = rotate_right (csum); |
|
|
282 | csum += *(uint8 *)&*i; |
|
|
283 | } |
|
|
284 | |
|
|
285 | return csum; |
| 218 | } |
286 | } |
| 219 | |
287 | |
| 220 | /** |
288 | /** |
| 221 | * Sends a face to a client if they are in pixmap mode |
289 | * Sends a face to a client if they are in pixmap mode |
| 222 | * nothing gets sent in bitmap mode. |
290 | * nothing gets sent in bitmap mode. |
| … | |
… | |
| 224 | * this is needed for the askface, in which we really do want to send the |
292 | * this is needed for the askface, in which we really do want to send the |
| 225 | * face (and askface is the only place that should be setting it). Otherwise, |
293 | * face (and askface is the only place that should be setting it). Otherwise, |
| 226 | * we look at the facecache, and if set, send the image name. |
294 | * we look at the facecache, and if set, send the image name. |
| 227 | */ |
295 | */ |
| 228 | void |
296 | void |
| 229 | esrv_send_face (client *ns, short face_num, int nocache) |
297 | client::send_face (faceidx facenum) |
| 230 | { |
298 | { |
| 231 | if (face_num <= 0 || face_num >= faces.size ()) |
299 | // never send face 0. ever. it does not exist. |
|
|
300 | if (!facenum) |
|
|
301 | return; |
|
|
302 | |
|
|
303 | const facedata *d = face_data (facenum, faceset); |
|
|
304 | |
|
|
305 | if (!d) |
| 232 | { |
306 | { |
| 233 | LOG (llevError, "esrv_send_face (%d) out of bounds??\n", face_num); |
307 | LOG (llevError, "client::send_face (%d) out of bounds??\n", facenum); |
| 234 | return; |
308 | return; |
| 235 | } |
309 | } |
| 236 | |
310 | |
| 237 | const facedata *d = face_data (face_num, ns->faceset); |
311 | if (faces_sent[facenum]) |
|
|
312 | return; |
|
|
313 | |
|
|
314 | faces_sent[facenum] = true; |
|
|
315 | |
|
|
316 | // if for some reason we let a client without face caching connect, |
|
|
317 | // we better support that decision here and implement it. |
|
|
318 | if (!facecache) |
|
|
319 | return send_image (facenum); |
|
|
320 | |
|
|
321 | if (fxix) |
|
|
322 | { |
|
|
323 | fxface.push_back (facenum); |
|
|
324 | return; |
|
|
325 | } |
| 238 | |
326 | |
| 239 | packet sl; |
327 | packet sl; |
| 240 | |
328 | |
| 241 | if (ns->facecache && !nocache) |
329 | if (force_face0) |
| 242 | { |
330 | sl << "face " << uint16 (facenum); |
| 243 | sl << (ns->image2 ? "face2 " : "face1 ") |
331 | else if (image2) |
| 244 | << uint16 (face_num); |
332 | sl << "face2 " << uint16 (facenum) << uint8 (0) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0); |
| 245 | |
|
|
| 246 | if (ns->image2) |
|
|
| 247 | sl << uint8 (0); |
|
|
| 248 | |
|
|
| 249 | sl << uint32 (0); |
|
|
| 250 | |
|
|
| 251 | // how lame |
|
|
| 252 | print_facename (sl, *d); |
|
|
| 253 | |
|
|
| 254 | ns->send_packet (sl); |
|
|
| 255 | } |
|
|
| 256 | else |
333 | else |
|
|
334 | sl << "face1 " << uint16 (facenum) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0); |
|
|
335 | |
|
|
336 | // how lame |
|
|
337 | print_facename (sl, *d); |
|
|
338 | send_packet (sl); |
|
|
339 | |
|
|
340 | if (EMI_smooth) |
|
|
341 | { |
|
|
342 | faceinfo *f = face_info (facenum); |
|
|
343 | |
|
|
344 | if (f->smooth) |
|
|
345 | { |
|
|
346 | send_face (f->smooth); |
|
|
347 | |
|
|
348 | packet sl ("smooth"); |
|
|
349 | |
|
|
350 | sl << uint16 (facenum) |
|
|
351 | << uint16 (f->smooth); |
|
|
352 | |
|
|
353 | send_packet (sl); |
|
|
354 | } |
| 257 | { |
355 | } |
|
|
356 | } |
|
|
357 | |
|
|
358 | void client::flush_fx () |
|
|
359 | { |
|
|
360 | while (!fxface.empty ()) |
|
|
361 | { |
|
|
362 | packet fx ("fx"); |
|
|
363 | packet sx ("sx"); |
|
|
364 | |
|
|
365 | do |
|
|
366 | { |
|
|
367 | faceidx facenum = fxface.back (); fxface.pop_back (); |
|
|
368 | |
|
|
369 | const facedata *d = face_data (facenum, faceset); |
|
|
370 | |
|
|
371 | if (d) |
|
|
372 | { |
|
|
373 | fx << ber32 (facenum) |
|
|
374 | << data8 (d->chksum, CHKSUM_SIZE); |
|
|
375 | |
|
|
376 | if (smoothing) |
|
|
377 | { |
|
|
378 | faceinfo *f = face_info (facenum); |
|
|
379 | |
|
|
380 | if (f->smooth) |
|
|
381 | { |
|
|
382 | send_face (f->smooth); |
|
|
383 | sx << ber32 (facenum) |
|
|
384 | << ber32 (f->smooth) |
|
|
385 | << ber32 (f->smoothlevel); |
|
|
386 | } |
|
|
387 | } |
|
|
388 | } |
|
|
389 | } |
|
|
390 | while (!fxface.empty () |
|
|
391 | && fx.room () > ber32::size + CHKSUM_SIZE + 1 |
|
|
392 | && sx.room () > ber32::size * 3); |
|
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393 | |
|
|
394 | send_packet (fx); |
|
|
395 | if (sx.length () > 3) send_packet (sx); |
|
|
396 | } |
|
|
397 | } |
|
|
398 | |
|
|
399 | void |
|
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400 | client::send_image (faceidx facenum) |
|
|
401 | { |
|
|
402 | // never send face 0. ever. it does not exist. |
|
|
403 | if (!facenum) |
|
|
404 | return; |
|
|
405 | |
|
|
406 | const facedata *d = face_data (facenum, faceset); |
|
|
407 | |
|
|
408 | faces_sent[facenum] = true; |
|
|
409 | |
|
|
410 | if (!d) |
|
|
411 | { |
|
|
412 | LOG (llevError, "client::send_image (%d) out of bounds??\n", facenum); |
|
|
413 | return; |
|
|
414 | } |
|
|
415 | |
|
|
416 | //TODO: check type here? |
|
|
417 | |
|
|
418 | if (force_image_newmap) |
|
|
419 | force_newmap = true; |
|
|
420 | |
|
|
421 | packet sl; |
|
|
422 | |
| 258 | sl << (ns->image2 ? "image2 " : "image ") |
423 | sl << (image2 ? "image2 " : "image ") |
| 259 | << uint32 (face_num); |
424 | << uint32 (facenum); |
| 260 | |
425 | |
| 261 | if (ns->image2) |
426 | if (image2) |
| 262 | sl << uint8 (0); |
427 | sl << uint8 (0); |
| 263 | |
428 | |
| 264 | sl << uint32 (d->data.size ()) |
429 | sl << uint32 (d->data.size ()) |
| 265 | << data (d->data.data (), d->data.size ()); |
430 | << data (d->data.data (), d->data.size ()); |
| 266 | |
431 | |
| 267 | ns->send_packet (sl); |
432 | send_packet (sl); |
|
|
433 | } |
|
|
434 | |
|
|
435 | // send all faces of this object to the client |
|
|
436 | // this uses more bandwidth initially, but makes |
|
|
437 | // animations look much smoother, and every client |
|
|
438 | // is supposed to do client-side caching anyways. |
|
|
439 | void |
|
|
440 | client::send_faces (object *ob) |
|
|
441 | { |
|
|
442 | send_face (ob->face); |
|
|
443 | |
|
|
444 | if (ob->animation_id) |
| 268 | } |
445 | { |
|
|
446 | animation &anim = animations [ob->animation_id]; |
| 269 | |
447 | |
| 270 | ns->faces_sent[face_num] |= NS_FACESENT_FACE; |
448 | for (int i = 0; i < anim.num_animations; i++) |
|
|
449 | send_face (anim.faces [i]); |
|
|
450 | } |
|
|
451 | } |
|
|
452 | |
|
|
453 | /** |
|
|
454 | * Need to send an animation sequence to the client. |
|
|
455 | * We will send appropriate face commands to the client if we haven't |
|
|
456 | * sent them the face yet (this can become quite costly in terms of |
|
|
457 | * how much we are sending - on the other hand, this should only happen |
|
|
458 | * when the player logs in and picks stuff up. |
|
|
459 | */ |
|
|
460 | void |
|
|
461 | client::send_animation (short anim_num) |
|
|
462 | { |
|
|
463 | /* Do some checking on the anim_num we got. Note that the animations |
|
|
464 | * are added in contigous order, so if the number is in the valid |
|
|
465 | * range, it must be a valid animation. |
|
|
466 | */ |
|
|
467 | if (anim_num < 0 || anim_num >= animations.size ()) |
|
|
468 | { |
|
|
469 | LOG (llevError, "esrv_send_anim (%d) out of bounds??\n", anim_num); |
|
|
470 | return; |
|
|
471 | } |
|
|
472 | |
|
|
473 | packet sl ("anim"); |
|
|
474 | |
|
|
475 | sl << uint16 (anim_num) |
|
|
476 | << uint16 (0); /* flags - not used right now */ |
|
|
477 | |
|
|
478 | /* Build up the list of faces. Also, send any information (ie, the |
|
|
479 | * the face itself) down to the client. |
|
|
480 | */ |
|
|
481 | for (int i = 0; i < animations[anim_num].num_animations; i++) |
|
|
482 | { |
|
|
483 | send_face (animations[anim_num].faces[i]); |
|
|
484 | sl << uint16 (animations[anim_num].faces[i]); /* flags - not used right now */ |
|
|
485 | } |
|
|
486 | |
|
|
487 | send_packet (sl); |
|
|
488 | |
|
|
489 | anims_sent[anim_num] = 1; |
| 271 | } |
490 | } |
| 272 | |
491 | |
| 273 | /** |
492 | /** |
| 274 | * Sends the number of images, checksum of the face file, |
493 | * Sends the number of images, checksum of the face file, |
| 275 | * and the image_info file information. See the doc/Developers/protocol |
494 | * and the image_info file information. See the doc/Developers/protocol |
| 276 | * if you want further detail. |
495 | * if you want further detail. |
| 277 | */ |
496 | */ |
| 278 | |
|
|
| 279 | void |
497 | void |
| 280 | send_image_info (client *ns, char *params) |
498 | send_image_info (client *ns, char *params) |
| 281 | { |
499 | { |
| 282 | packet sl; |
500 | packet sl; |
| 283 | |
501 | |
| … | |
… | |
| 322 | |
540 | |
| 323 | sl.printf ("replyinfo image_sums %d %d ", start, stop); |
541 | sl.printf ("replyinfo image_sums %d %d ", start, stop); |
| 324 | |
542 | |
| 325 | for (int i = start; i <= stop && i < faces.size (); i++) |
543 | for (int i = start; i <= stop && i < faces.size (); i++) |
| 326 | { |
544 | { |
| 327 | ns->faces_sent[i] |= NS_FACESENT_FACE; |
545 | ns->faces_sent[i] = true; |
| 328 | |
546 | |
| 329 | const facedata *d = face_data (i, ns->faceset); |
547 | const facedata *d = face_data (i, ns->faceset); |
| 330 | |
548 | |
| 331 | if (sl.room () < 2 + 4 + 1 + d->data.size () + 1) |
549 | if (sl.room () < 2 + 4 + 1 + d->data.size () + 1) |
| 332 | break; |
550 | break; |
