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Comparing deliantra/server/socket/image.C (file contents):
Revision 1.23 by root, Sat Mar 10 19:48:17 2007 UTC vs.
Revision 1.48 by root, Thu Jul 12 18:48:20 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 *
… …
86 85
87 for (num = 0; num < MAX_FACE_SETS; num++) 86 for (num = 0; num < MAX_FACE_SETS; num++)
88 { 87 {
89 if (facesets[num].prefix) 88 if (facesets[num].prefix)
90 { 89 {
91 for (q = 0; q < nrofpixmaps; q++) 90 for (q = 0; q < faces.size (); q++)
92 if (facesets[num].faces[q].data) 91 if (facesets[num].faces[q].data)
93 free (facesets[num].faces[q].data); 92 free (facesets[num].faces[q].data);
94 93
95 free (facesets[num].prefix); 94 free (facesets[num].prefix);
96 free (facesets[num].fullname); 95 free (facesets[num].fullname);
… …
172} 171}
173 172
174#define MAX_IMAGE_SIZE 10000 173#define MAX_IMAGE_SIZE 10000
175 174
176/** 175/**
177 * Loads all the image types into memory.
178 *
179 * This way, we can easily send them to the client. We should really do something
180 * better than abort on any errors - on the other hand, these are all fatal
181 * to the server (can't work around them), but the abort just seems a bit
182 * messy (exit would probably be better.)
183 *
184 * Couple of notes: We assume that the faces are in a continous block.
185 * This works fine for now, but this could perhaps change in the future
186 *
187 * Function largely rewritten May 2000 to be more general purpose.
188 * The server itself does not care what the image data is - to the server,
189 * it is just data it needs to allocate. As such, the code is written
190 * to do such.
191 */
192void
193read_client_images (void)
194{
195 char filename[400];
196 char buf[HUGE_BUF];
197 char *cp, *cps[7];
198 FILE *infile;
199 int num, len, compressed, fileno, i, badline;
200
201 memset (facesets, 0, sizeof (facesets));
202 sprintf (filename, "%s/image_info", settings.datadir);
203 if ((infile = open_and_uncompress (filename, 0, &compressed)) == NULL)
204 {
205 LOG (llevError, "Unable to open %s\n", filename);
206 abort ();
207 }
208
209 while (fgets (buf, HUGE_BUF - 1, infile) != NULL)
210 {
211 badline = 0;
212
213 if (buf[0] == '#')
214 continue;
215
216 if (!(cps[0] = strtok (buf, ":")))
217 badline = 1;
218
219 for (i = 1; i < 7; i++)
220 if (!(cps[i] = strtok (NULL, ":")))
221 badline = 1;
222
223 if (badline)
224 LOG (llevError, "Bad line in image_info file, ignoring line:\n %s", buf);
225 else
226 {
227 len = atoi (cps[0]);
228 if (len >= MAX_FACE_SETS)
229 {
230 LOG (llevError, "To high a setnum in image_info file: %d > %d\n", len, MAX_FACE_SETS);
231 abort ();
232 }
233 facesets[len].prefix = strdup (cps[1]);
234 facesets[len].fullname = strdup (cps[2]);
235 facesets[len].fallback = atoi (cps[3]);
236 facesets[len].size = strdup (cps[4]);
237 facesets[len].extension = strdup (cps[5]);
238 facesets[len].comment = strdup (cps[6]);
239 }
240 }
241
242 close_and_delete (infile, compressed);
243
244 for (i = 0; i < MAX_FACE_SETS; i++)
245 {
246 if (facesets[i].prefix)
247 check_faceset_fallback (i, MAX_FACE_SETS);
248 }
249
250 /* Loaded the faceset information - now need to load up the
251 * actual faces.
252 */
253
254 for (fileno = 0; fileno < MAX_FACE_SETS; fileno++)
255 {
256 /* if prefix is not set, this is not used */
257 if (!facesets[fileno].prefix)
258 continue;
259
260 facesets[fileno].faces = (FaceInfo *) calloc (nrofpixmaps, sizeof (FaceInfo));
261
262 sprintf (filename, "%s/crossfire.%d", settings.datadir, fileno);
263 LOG (llevDebug, "Loading image file %s\n", filename);
264
265 if ((infile = open_and_uncompress (filename, 0, &compressed)) == NULL)
266 {
267 LOG (llevError, "Unable to open %s\n", filename);
268 abort ();
269 }
270
271 while (fgets (buf, HUGE_BUF - 1, infile) != NULL)
272 {
273 if (strncmp (buf, "IMAGE ", 6) != 0)
274 {
275 LOG (llevError, "read_client_images:Bad image line - not IMAGE, instead\n%s", buf);
276 abort ();
277 }
278
279 num = atoi (buf + 6);
280 if (num < 0 || num >= nrofpixmaps)
281 {
282 LOG (llevError, "read_client_images: Image num %d not in 0..%d\n%s", num, nrofpixmaps, buf);
283 abort ();
284 }
285
286 /* Skip accross the number data */
287 for (cp = buf + 6; *cp != ' '; cp++)
288 ;
289
290 len = atoi (cp);
291 if (len == 0 || len > MAX_IMAGE_SIZE)
292 {
293 LOG (llevError, "read_client_images: length not valid: %d > %d \n%s", len, MAX_IMAGE_SIZE, buf);
294 abort ();
295 }
296
297 /* We don't actualy care about the name of the image that
298 * is embedded in the image file, so just ignore it.
299 */
300 facesets[fileno].faces[num].datalen = len;
301 facesets[fileno].faces[num].data = (uint8 *) malloc (len);
302 if ((i = fread (facesets[fileno].faces[num].data, len, 1, infile)) != 1)
303 {
304 LOG (llevError, "read_client_images: Did not read desired amount of data, wanted %d, got %d\n%s", len, i, buf);
305 abort ();
306 }
307
308 crc32 chksum;
309
310 for (i = 0; i < len; i++)
311 chksum (facesets[fileno].faces[num].data[i]);
312
313 facesets[fileno].faces[num].checksum = chksum;
314 }
315
316 close_and_delete (infile, compressed);
317 } /* For fileno < MAX_FACE_SETS */
318}
319
320/**
321 * Client tells us what type of faces it wants. Also sets 176 * Client tells us what type of faces it wants. Also sets
322 * the caching attribute. 177 * the caching attribute.
323 * 178 *
324 */ 179 */
325void 180void
… …
335 if (mask) 190 if (mask)
336 ns->facecache = 1; 191 ns->facecache = 1;
337} 192}
338 193
339/** 194/**
340 * Client has requested pixmap that it somehow missed getting. 195 * client requested an image. send it rate-limited
341 * This will be called often if the client is 196 * before flushing.
342 * caching images.
343 */ 197 */
344void 198void
345SendFaceCmd (char *buf, int len, client *ns) 199AskFaceCmd (char *buf, int len, client *ns)
346{ 200{
347 uint16 facenum = atoi (buf); 201 int idx = 0, pri = 0;
348 202
349 if (facenum != 0) 203 sscanf (buf, "%d %d", &idx, &pri);
350 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 */
255void
256AskSmooth (char *buf, int len, client *ns)
257{
258 ns->send_face (atoi (buf));
259 ns->flush_fx ();
260}
261
262// how lame
263static void print_facename (packet &sl, const facedata &d)
264{
265 for (int i = 0; i < CHKSUM_SIZE; ++i)
266 sl.printf ("%02x", d.chksum [i]);
267}
268
269// gcfclient uses the server-provided checksum for comparison, but always
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.
273static 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;
351} 286}
352 287
353/** 288/**
354 * 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
355 * nothing gets sent in bitmap mode. 290 * nothing gets sent in bitmap mode.
… …
357 * 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
358 * 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,
359 * 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.
360 */ 295 */
361void 296void
362esrv_send_face (client *ns, short face_num, int nocache) 297client::send_face (faceidx facenum)
363{ 298{
364 char fallback; 299 // never send face 0. ever. it does not exist.
300 if (!facenum)
301 return;
365 302
366 if (face_num <= 0 || face_num >= nrofpixmaps) 303 const facedata *d = face_data (facenum, faceset);
304
305 if (!d)
367 { 306 {
368 LOG (llevError, "esrv_send_face (%d) out of bounds??\n", face_num); 307 LOG (llevError, "client::send_face (%d) out of bounds??\n", facenum);
369 return; 308 return;
370 } 309 }
371 310
311 // refuse tos end non-image faces
312 if (d->type)
313 return;
314
315 if (!must_send_face (facenum))
316 return;
317
318 // if for some reason we let a client without face caching connect,
319 // we better support that decision here and implement it.
320 if (!facecache)
321 return send_image (facenum);
322
323 if (fxix)
324 {
325 fxface.push_back (facenum);
326 return;
327 }
328
372 packet sl; 329 packet sl;
373 fallback = get_face_fallback (ns->faceset, face_num);
374 330
375 if (facesets[fallback].faces[face_num].data == NULL) 331 if (force_face0)
332 sl << "face " << uint16 (facenum);
333 else if (image2)
334 sl << "face2 " << uint16 (facenum) << uint8 (0) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0);
335 else
336 sl << "face1 " << uint16 (facenum) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0);
337
338 // how lame
339 print_facename (sl, *d);
340 send_packet (sl);
341
342 if (EMI_smooth)
343 {
344 faceinfo *f = face_info (facenum);
345
346 if (f->smooth)
347 {
348 send_face (f->smooth);
349
350 packet sl ("smooth");
351
352 sl << uint16 (facenum)
353 << uint16 (f->smooth);
354
355 send_packet (sl);
356 }
376 { 357 }
377 LOG (llevError, "esrv_send_face: faces[%d].data == NULL\n", face_num); 358}
359
360void client::flush_fx ()
361{
362 while (!fxface.empty ())
363 {
364 packet fx ("fx");
365 packet sx ("sx");
366
367 do
368 {
369 faceidx facenum = fxface.back (); fxface.pop_back ();
370
371 const facedata *d = face_data (facenum, faceset);
372
373 if (d)
374 {
375 fx << ber32 (facenum)
376 << data8 (d->chksum, CHKSUM_SIZE);
377
378 if (smoothing)
379 {
380 faceinfo *f = face_info (facenum);
381
382 if (f->smooth)
383 {
384 send_face (f->smooth);
385 sx << ber32 (facenum)
386 << ber32 (f->smooth)
387 << ber32 (f->smoothlevel);
388 }
389 }
390 }
391 }
392 while (!fxface.empty ()
393 && fx.room () > ber32::size + CHKSUM_SIZE + 1
394 && sx.room () > ber32::size * 3);
395
396 send_packet (fx);
397 if (sx.length () > 3) send_packet (sx);
398 }
399}
400
401void
402client::send_image (faceidx facenum)
403{
404 // never send face 0. ever. it does not exist.
405 if (!facenum)
406 return;
407
408 const facedata *d = face_data (facenum, faceset);
409
410 faces_sent[facenum] = true;
411
412 if (!d)
413 {
414 LOG (llevError, "client::send_image (%d) out of bounds??\n", facenum);
378 return; 415 return;
379 } 416 }
417
418 //TODO: check type here?
380 419
381 if (ns->facecache && !nocache) 420 if (force_image_newmap)
382 { 421 force_newmap = true;
383 sl << (ns->image2 ? "face2 " : "face1 ")
384 << uint16 (face_num);
385 422
386 if (ns->image2) 423 packet sl;
387 sl << uint8 (fallback);
388 424
389 sl << uint32 (facesets[fallback].faces[face_num].checksum)
390 << new_faces[face_num].name;
391
392 ns->send_packet (sl);
393 }
394 else
395 {
396 sl << (ns->image2 ? "image2 " : "image ") 425 sl << (image2 ? "image2 " : "image ")
397 << uint32 (face_num); 426 << uint32 (facenum);
398 427
399 if (ns->image2) 428 if (image2)
400 sl << uint8 (fallback); 429 sl << uint8 (0);
401 430
402 sl << uint32 (facesets[fallback].faces[face_num].datalen) 431 sl << uint32 (d->data.size ())
403 << data (facesets[fallback].faces[face_num].data, facesets[fallback].faces[face_num].datalen); 432 << data (d->data.data (), d->data.size ());
404 433
405 ns->send_packet (sl); 434 send_packet (sl);
435}
436
437// send all faces of this object to the client
438// this uses more bandwidth initially, but makes
439// animations look much smoother, and every client
440// is supposed to do client-side caching anyways.
441void
442client::send_faces (object *ob)
443{
444 send_face (ob->face);
445
446 if (ob->animation_id)
406 } 447 {
448 animation &anim = animations [ob->animation_id];
407 449
408 ns->faces_sent[face_num] |= NS_FACESENT_FACE; 450 for (int i = 0; i < anim.num_animations; i++)
451 send_face (anim.faces [i]);
452 }
453}
454
455/**
456 * Need to send an animation sequence to the client.
457 * We will send appropriate face commands to the client if we haven't
458 * sent them the face yet (this can become quite costly in terms of
459 * how much we are sending - on the other hand, this should only happen
460 * when the player logs in and picks stuff up.
461 */
462void
463client::send_animation (short anim_num)
464{
465 /* Do some checking on the anim_num we got. Note that the animations
466 * are added in contigous order, so if the number is in the valid
467 * range, it must be a valid animation.
468 */
469 if (anim_num < 0 || anim_num >= animations.size ())
470 {
471 LOG (llevError, "esrv_send_anim (%d) out of bounds??\n", anim_num);
472 return;
473 }
474
475 packet sl ("anim");
476
477 sl << uint16 (anim_num)
478 << uint16 (0); /* flags - not used right now */
479
480 /* Build up the list of faces. Also, send any information (ie, the
481 * the face itself) down to the client.
482 */
483 for (int i = 0; i < animations[anim_num].num_animations; i++)
484 {
485 send_face (animations[anim_num].faces[i]);
486 sl << uint16 (animations[anim_num].faces[i]); /* flags - not used right now */
487 }
488
489 send_packet (sl);
490
491 anims_sent[anim_num] = 1;
409} 492}
410 493
411/** 494/**
412 * Sends the number of images, checksum of the face file, 495 * Sends the number of images, checksum of the face file,
413 * and the image_info file information. See the doc/Developers/protocol 496 * and the image_info file information. See the doc/Developers/protocol
414 * if you want further detail. 497 * if you want further detail.
415 */ 498 */
416
417void 499void
418send_image_info (client *ns, char *params) 500send_image_info (client *ns, char *params)
419{ 501{
420 packet sl; 502 packet sl;
421 503
422 sl.printf ("replyinfo image_info\n%d\n%u\n", nrofpixmaps - 1, (unsigned int)bmaps_checksum); 504 //TODO: second parameter is a checksum, but it makes no sense in this current framework
505 sl.printf ("replyinfo image_info\n%d\n%u\n", MAX_FACES, 0);
423 506
424 for (int i = 0; i < MAX_FACE_SETS; i++) 507 sl << "0:base:standard:0:32x32:none:The old 32x32 faceset.\n";
425 if (facesets[i].prefix)
426 sl.printf ("%d:%s:%s:%d:%s:%s:%s", i,
427 facesets[i].prefix, facesets[i].fullname , facesets[i].fallback,
428 facesets[i].size , facesets[i].extension, facesets[i].comment);
429 508
430 ns->send_packet (sl); 509 ns->send_packet (sl);
431} 510}
432 511
433/** 512/**
… …
451 for (cp = params; *cp != '\0'; cp++) 530 for (cp = params; *cp != '\0'; cp++)
452 if (*cp == ' ') 531 if (*cp == ' ')
453 break; 532 break;
454 533
455 stop = atoi (cp); 534 stop = atoi (cp);
456 if (stop < start || *cp == '\0' || (stop - start) > 1000 || stop >= nrofpixmaps) 535 if (stop < start || *cp == '\0' || (stop - start) > 1000 || stop >= MAX_FACES)
457 { 536 {
458 sl.printf ("replyinfo image_sums %d %d", start, stop); 537 sl.printf ("replyinfo image_sums %d %d", start, stop);
459 ns->send_packet (sl); 538 ns->send_packet (sl);
460 sl.reset (); 539 sl.reset ();
461 return; 540 return;
462 } 541 }
463 542
464 sl.printf ("replyinfo image_sums %d %d ", start, stop); 543 sl.printf ("replyinfo image_sums %d %d ", start, stop);
465 544
466 for (int i = start; i <= stop; i++) 545 for (int i = start; i <= stop && i < faces.size (); i++)
467 { 546 {
468 ns->faces_sent[i] |= NS_FACESENT_FACE; 547 ns->faces_sent[i] = true;
469 548
470 int qq = get_face_fallback (ns->faceset, i); 549 const facedata *d = face_data (i, ns->faceset);
471 550
472 if (sl.room () < 2 + 4 + 1 + new_faces[i].name.length () + 1) 551 if (sl.room () < 2 + 4 + 1 + d->data.size () + 1)
473 break; 552 break;
474 553
475 sl << uint16 (i) 554 sl << uint16 (i)
476 << uint32 (facesets[qq].faces[i].checksum) 555 << uint32 (0) // checksum
477 << uint8 (qq) 556 << uint8 (ns->faceset);
478 << data8 (&new_faces[i].name, new_faces[i].name.length () + 1); 557
558 print_facename (sl, *d); sl << uint8 (0);
479 } 559 }
480 560
481 /* It would make more sense to catch this pre-emptively in the code above. 561 /* It would make more sense to catch this pre-emptively in the code above.
482 * however, if this really happens, we probably just want to cut down the 562 * however, if this really happens, we probably just want to cut down the
483 * size to less than 1000, since that is what we claim the protocol would 563 * size to less than 1000, since that is what we claim the protocol would

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