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Comparing deliantra/server/socket/image.C (file contents):
Revision 1.19 by root, Thu Feb 15 18:09:34 2007 UTC vs.
Revision 1.39 by root, Tue Apr 3 00:21:38 2007 UTC

… …
34 */ 34 */
35 35
36#include <global.h> 36#include <global.h>
37#include <sproto.h> 37#include <sproto.h>
38 38
39#include "crc.h"
40
39#define MAX_FACE_SETS 20 /**< Maximum number of image sets the program will handle */ 41#define MAX_FACE_SETS 20 /**< Maximum number of image sets the program will handle */
40 42
41/** Information about one image */ 43/** Information about one image */
42typedef struct FaceInfo 44typedef struct FaceInfo
43{ 45{
… …
84 86
85 for (num = 0; num < MAX_FACE_SETS; num++) 87 for (num = 0; num < MAX_FACE_SETS; num++)
86 { 88 {
87 if (facesets[num].prefix) 89 if (facesets[num].prefix)
88 { 90 {
89 for (q = 0; q < nrofpixmaps; q++) 91 for (q = 0; q < faces.size (); q++)
90 if (facesets[num].faces[q].data) 92 if (facesets[num].faces[q].data)
91 free (facesets[num].faces[q].data); 93 free (facesets[num].faces[q].data);
92 94
93 free (facesets[num].prefix); 95 free (facesets[num].prefix);
94 free (facesets[num].fullname); 96 free (facesets[num].fullname);
… …
170} 172}
171 173
172#define MAX_IMAGE_SIZE 10000 174#define MAX_IMAGE_SIZE 10000
173 175
174/** 176/**
175 * Loads all the image types into memory.
176 *
177 * This way, we can easily send them to the client. We should really do something
178 * better than abort on any errors - on the other hand, these are all fatal
179 * to the server (can't work around them), but the abort just seems a bit
180 * messy (exit would probably be better.)
181 *
182 * Couple of notes: We assume that the faces are in a continous block.
183 * This works fine for now, but this could perhaps change in the future
184 *
185 * Function largely rewritten May 2000 to be more general purpose.
186 * The server itself does not care what the image data is - to the server,
187 * it is just data it needs to allocate. As such, the code is written
188 * to do such.
189 */
190void
191read_client_images (void)
192{
193 char filename[400];
194 char buf[HUGE_BUF];
195 char *cp, *cps[7];
196 FILE *infile;
197 int num, len, compressed, fileno, i, badline;
198
199 memset (facesets, 0, sizeof (facesets));
200 sprintf (filename, "%s/image_info", settings.datadir);
201 if ((infile = open_and_uncompress (filename, 0, &compressed)) == NULL)
202 {
203 LOG (llevError, "Unable to open %s\n", filename);
204 abort ();
205 }
206
207 while (fgets (buf, HUGE_BUF - 1, infile) != NULL)
208 {
209 badline = 0;
210
211 if (buf[0] == '#')
212 continue;
213
214 if (!(cps[0] = strtok (buf, ":")))
215 badline = 1;
216
217 for (i = 1; i < 7; i++)
218 if (!(cps[i] = strtok (NULL, ":")))
219 badline = 1;
220
221 if (badline)
222 LOG (llevError, "Bad line in image_info file, ignoring line:\n %s", buf);
223 else
224 {
225 len = atoi (cps[0]);
226 if (len >= MAX_FACE_SETS)
227 {
228 LOG (llevError, "To high a setnum in image_info file: %d > %d\n", len, MAX_FACE_SETS);
229 abort ();
230 }
231 facesets[len].prefix = strdup (cps[1]);
232 facesets[len].fullname = strdup (cps[2]);
233 facesets[len].fallback = atoi (cps[3]);
234 facesets[len].size = strdup (cps[4]);
235 facesets[len].extension = strdup (cps[5]);
236 facesets[len].comment = strdup (cps[6]);
237 }
238 }
239
240 close_and_delete (infile, compressed);
241
242 for (i = 0; i < MAX_FACE_SETS; i++)
243 {
244 if (facesets[i].prefix)
245 check_faceset_fallback (i, MAX_FACE_SETS);
246 }
247
248 /* Loaded the faceset information - now need to load up the
249 * actual faces.
250 */
251
252 for (fileno = 0; fileno < MAX_FACE_SETS; fileno++)
253 {
254 /* if prefix is not set, this is not used */
255 if (!facesets[fileno].prefix)
256 continue;
257
258 facesets[fileno].faces = (FaceInfo *) calloc (nrofpixmaps, sizeof (FaceInfo));
259
260 sprintf (filename, "%s/crossfire.%d", settings.datadir, fileno);
261 LOG (llevDebug, "Loading image file %s\n", filename);
262
263 if ((infile = open_and_uncompress (filename, 0, &compressed)) == NULL)
264 {
265 LOG (llevError, "Unable to open %s\n", filename);
266 abort ();
267 }
268
269 while (fgets (buf, HUGE_BUF - 1, infile) != NULL)
270 {
271 if (strncmp (buf, "IMAGE ", 6) != 0)
272 {
273 LOG (llevError, "read_client_images:Bad image line - not IMAGE, instead\n%s", buf);
274 abort ();
275 }
276
277 num = atoi (buf + 6);
278 if (num < 0 || num >= nrofpixmaps)
279 {
280 LOG (llevError, "read_client_images: Image num %d not in 0..%d\n%s", num, nrofpixmaps, buf);
281 abort ();
282 }
283
284 /* Skip accross the number data */
285 for (cp = buf + 6; *cp != ' '; cp++);
286 len = atoi (cp);
287 if (len == 0 || len > MAX_IMAGE_SIZE)
288 {
289 LOG (llevError, "read_client_images: length not valid: %d > %d \n%s", len, MAX_IMAGE_SIZE, buf);
290 abort ();
291 }
292
293 /* We don't actualy care about the name of the image that
294 * is embedded in the image file, so just ignore it.
295 */
296 facesets[fileno].faces[num].datalen = len;
297 facesets[fileno].faces[num].data = (uint8 *) malloc (len);
298 if ((i = fread (facesets[fileno].faces[num].data, len, 1, infile)) != 1)
299 {
300 LOG (llevError, "read_client_images: Did not read desired amount of data, wanted %d, got %d\n%s", len, i, buf);
301 abort ();
302 }
303
304 facesets[fileno].faces[num].checksum = 0;
305 for (i = 0; i < len; i++)
306 {
307 rotate_right (facesets[fileno].faces[num].checksum);
308 facesets[fileno].faces[num].checksum += facesets[fileno].faces[num].data[i];
309 facesets[fileno].faces[num].checksum &= 0xffffffff;
310 }
311 }
312
313 close_and_delete (infile, compressed);
314 } /* For fileno < MAX_FACE_SETS */
315}
316
317/**
318 * Client tells us what type of faces it wants. Also sets 177 * Client tells us what type of faces it wants. Also sets
319 * the caching attribute. 178 * the caching attribute.
320 * 179 *
321 */ 180 */
322void 181void
… …
339 * caching images. 198 * caching images.
340 */ 199 */
341void 200void
342SendFaceCmd (char *buf, int len, client *ns) 201SendFaceCmd (char *buf, int len, client *ns)
343{ 202{
344 uint16 facenum = atoi (buf); 203 ns->send_image (atoi (buf));
204}
345 205
346 if (facenum != 0) 206// how lame
347 esrv_send_face (ns, facenum, 1); 207static void print_facename (packet &sl, const facedata &d)
208{
209 for (int i = 0; i < CHKSUM_SIZE; ++i)
210 sl.printf ("%02x", d.chksum [i]);
211}
212
213// gcfclient uses the server-provided checksum for comparison, but always
214// writes a broken checksum to its cache file, so we have to provide
215// gcfclient with the same broken (and useless) checksum just to have it
216// cache the image despite its bugs.
217static uint32 gcfclient_checksum (const facedata *d)
218{
219 uint32 csum = 0;
220
221 for (std::string::const_iterator i = d->data.begin ();
222 i != d->data.end ();
223 ++i)
224 {
225 csum = rotate_right (csum);
226 csum += *(uint8 *)&*i;
227 }
228
229 return csum;
348} 230}
349 231
350/** 232/**
351 * Sends a face to a client if they are in pixmap mode 233 * Sends a face to a client if they are in pixmap mode
352 * nothing gets sent in bitmap mode. 234 * nothing gets sent in bitmap mode.
… …
354 * this is needed for the askface, in which we really do want to send the 236 * this is needed for the askface, in which we really do want to send the
355 * face (and askface is the only place that should be setting it). Otherwise, 237 * face (and askface is the only place that should be setting it). Otherwise,
356 * we look at the facecache, and if set, send the image name. 238 * we look at the facecache, and if set, send the image name.
357 */ 239 */
358void 240void
359esrv_send_face (client *ns, short face_num, int nocache) 241client::send_face (faceidx facenum)
360{ 242{
361 char fallback; 243 // never send face 0. ever. it does not exist.
244 if (!facenum)
245 return;
362 246
363 if (face_num <= 0 || face_num >= nrofpixmaps) 247 const facedata *d = face_data (facenum, faceset);
248
249 if (!d)
364 { 250 {
365 LOG (llevError, "esrv_send_face (%d) out of bounds??\n", face_num); 251 LOG (llevError, "client::send_face (%d) out of bounds??\n", facenum);
366 return; 252 return;
367 } 253 }
368 254
255 if (faces_sent[facenum])
256 return;
257
258 faces_sent[facenum] = true;
259
260 // if for some reason we let a client without face caching connect,
261 // we better support that decision here and implement it.
262 if (!facecache)
263 return send_image (facenum);
264
265 if (fxix)
266 {
267 fxface.push_back (facenum);
268 return;
269 }
270
369 packet sl; 271 packet sl;
370 fallback = get_face_fallback (ns->faceset, face_num);
371 272
372 if (facesets[fallback].faces[face_num].data == NULL) 273 if (force_face0)
274 sl << "face " << uint16 (facenum);
275 else if (image2)
276 sl << "face2 " << uint16 (facenum) << uint8 (0) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0);
277 else
278 sl << "face1 " << uint16 (facenum) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0);
279
280 // how lame
281 print_facename (sl, *d);
282 send_packet (sl);
283
284 faceinfo *f = face_info (facenum);
285 if (f->smooth && EMI_smooth)
286 {
287 send_face (f->smooth);
288
289 packet sl ("smooth");
290
291 sl << uint16 (facenum)
292 << uint16 (f->smooth);
293
294 send_packet (sl);
373 { 295 }
374 LOG (llevError, "esrv_send_face: faces[%d].data == NULL\n", face_num); 296}
297
298void client::flush_fx ()
299{
300 while (!fxface.empty ())
301 {
302 packet sl ("fx");
303
304 do
305 {
306 faceidx facenum = fxface.back (); fxface.pop_back ();
307
308 const facedata *d = face_data (facenum, faceset);
309
310 if (d)
311 {
312 sl << ber32 (facenum)
313 << data8 (d->chksum, CHKSUM_SIZE);
314
315 faceinfo *f = face_info (facenum);
316 if (f->smooth && EMI_smooth)
317 sl << ber32 (f->smooth);
318 }
319 }
320 while (!fxface.empty () && sl.room () > CHKSUM_SIZE + 8 + 8);
321
322 send_packet (sl);
323 }
324}
325
326void
327client::send_image (faceidx facenum)
328{
329 // never send face 0. ever. it does not exist.
330 if (!facenum)
331 return;
332
333 const facedata *d = face_data (facenum, faceset);
334
335 if (!d)
336 {
337 LOG (llevError, "client::send_image (%d) out of bounds??\n", facenum);
375 return; 338 return;
376 } 339 }
377 340
378 if (ns->facecache && !nocache) 341 faces_sent[facenum] = true;
379 {
380 sl << (ns->image2 ? "face2 " : "face1 ")
381 << uint16 (face_num);
382 342
383 if (ns->image2) 343 if (force_image_newmap)
384 sl << uint8 (fallback); 344 force_newmap = true;
385 345
386 sl << uint32 (facesets[fallback].faces[face_num].checksum) 346 packet sl;
387 << new_faces[face_num].name;
388 347
389 ns->send_packet (sl);
390 }
391 else
392 {
393 sl << (ns->image2 ? "image2 " : "image ") 348 sl << (image2 ? "image2 " : "image ")
394 << uint32 (face_num); 349 << uint32 (facenum);
395 350
396 if (ns->image2) 351 if (image2)
397 sl << uint8 (fallback); 352 sl << uint8 (0);
398 353
399 sl << uint32 (facesets[fallback].faces[face_num].datalen) 354 sl << uint32 (d->data.size ())
400 << data (facesets[fallback].faces[face_num].data, facesets[fallback].faces[face_num].datalen); 355 << data (d->data.data (), d->data.size ());
401 356
402 ns->send_packet (sl); 357 send_packet (sl);
358}
359
360// send all faces of this object to the client
361// this uses more bandwidth initially, but makes
362// animations look much smoother, and every client
363// is supposed to do client-side caching anyways.
364void
365client::send_faces (object *ob)
366{
367 send_face (ob->face);
368
369 if (ob->animation_id)
403 } 370 {
371 animation &anim = animations [ob->animation_id];
404 372
405 ns->faces_sent[face_num] |= NS_FACESENT_FACE; 373 for (int i = 0; i < anim.num_animations; i++)
374 send_face (anim.faces [i]);
375 }
376}
377
378/**
379 * Need to send an animation sequence to the client.
380 * We will send appropriate face commands to the client if we haven't
381 * sent them the face yet (this can become quite costly in terms of
382 * how much we are sending - on the other hand, this should only happen
383 * when the player logs in and picks stuff up.
384 */
385void
386client::send_animation (short anim_num)
387{
388 /* Do some checking on the anim_num we got. Note that the animations
389 * are added in contigous order, so if the number is in the valid
390 * range, it must be a valid animation.
391 */
392 if (anim_num < 0 || anim_num > num_animations)
393 {
394 LOG (llevError, "esrv_send_anim (%d) out of bounds??\n", anim_num);
395 return;
396 }
397
398 packet sl ("anim");
399
400 sl << uint16 (anim_num)
401 << uint16 (0); /* flags - not used right now */
402
403 /* Build up the list of faces. Also, send any information (ie, the
404 * the face itself) down to the client.
405 */
406 for (int i = 0; i < animations[anim_num].num_animations; i++)
407 {
408 send_face (animations[anim_num].faces[i]);
409 sl << uint16 (animations[anim_num].faces[i]); /* flags - not used right now */
410 }
411
412 send_packet (sl);
413
414 anims_sent[anim_num] = 1;
406} 415}
407 416
408/** 417/**
409 * Sends the number of images, checksum of the face file, 418 * Sends the number of images, checksum of the face file,
410 * and the image_info file information. See the doc/Developers/protocol 419 * and the image_info file information. See the doc/Developers/protocol
411 * if you want further detail. 420 * if you want further detail.
412 */ 421 */
413
414void 422void
415send_image_info (client *ns, char *params) 423send_image_info (client *ns, char *params)
416{ 424{
417 packet sl; 425 packet sl;
418 426
419 sl.printf ("replyinfo image_info\n%d\n%u\n", nrofpixmaps - 1, (unsigned int)bmaps_checksum); 427 //TODO: second parameter is a checksum, but it makes no sense in this current framework
428 sl.printf ("replyinfo image_info\n%d\n%u\n", MAX_FACES, 0);
420 429
421 for (int i = 0; i < MAX_FACE_SETS; i++) 430 sl << "0:base:standard:0:32x32:none:The old 32x32 faceset.\n";
422 if (facesets[i].prefix)
423 sl.printf ("%d:%s:%s:%d:%s:%s:%s", i,
424 facesets[i].prefix, facesets[i].fullname , facesets[i].fallback,
425 facesets[i].size , facesets[i].extension, facesets[i].comment);
426 431
427 ns->send_packet (sl); 432 ns->send_packet (sl);
428} 433}
429 434
430/** 435/**
… …
438 */ 443 */
439void 444void
440send_image_sums (client *ns, char *params) 445send_image_sums (client *ns, char *params)
441{ 446{
442 int start, stop; 447 int start, stop;
443 char *cp, buf[MAX_BUF]; 448 char *cp;
444 449
445 packet sl; 450 packet sl;
446 451
447 start = atoi (params); 452 start = atoi (params);
448 for (cp = params; *cp != '\0'; cp++) 453 for (cp = params; *cp != '\0'; cp++)
449 if (*cp == ' ') 454 if (*cp == ' ')
450 break; 455 break;
451 456
452 stop = atoi (cp); 457 stop = atoi (cp);
453 if (stop < start || *cp == '\0' || (stop - start) > 1000 || stop >= nrofpixmaps) 458 if (stop < start || *cp == '\0' || (stop - start) > 1000 || stop >= MAX_FACES)
454 { 459 {
455 sl.printf ("replyinfo image_sums %d %d", start, stop); 460 sl.printf ("replyinfo image_sums %d %d", start, stop);
456 ns->send_packet (sl); 461 ns->send_packet (sl);
457 sl.reset (); 462 sl.reset ();
458 return; 463 return;
459 } 464 }
460 465
461 sl.printf ("replyinfo image_sums %d %d ", start, stop); 466 sl.printf ("replyinfo image_sums %d %d ", start, stop);
462 467
463 for (int i = start; i <= stop; i++) 468 for (int i = start; i <= stop && i < faces.size (); i++)
464 { 469 {
465 ns->faces_sent[i] |= NS_FACESENT_FACE; 470 ns->faces_sent[i] = true;
466 471
467 int qq = get_face_fallback (ns->faceset, i); 472 const facedata *d = face_data (i, ns->faceset);
473
474 if (sl.room () < 2 + 4 + 1 + d->data.size () + 1)
475 break;
468 476
469 sl << uint16 (i) 477 sl << uint16 (i)
470 << uint32 (facesets[qq].faces[i].checksum) 478 << uint32 (0) // checksum
471 << uint8 (qq) 479 << uint8 (ns->faceset);
472 << data8 (&new_faces[i].name, new_faces[i].name.length () + 1); 480
481 print_facename (sl, *d); sl << uint8 (0);
473 } 482 }
474 483
475 /* It would make more sense to catch this pre-emptively in the code above. 484 /* It would make more sense to catch this pre-emptively in the code above.
476 * however, if this really happens, we probably just want to cut down the 485 * however, if this really happens, we probably just want to cut down the
477 * size to less than 1000, since that is what we claim the protocol would 486 * size to less than 1000, since that is what we claim the protocol would
478 * support. 487 * support.
479 */ 488 */
489 //TODO: taken care of above, should simply abort or make sure the above code is correct
480 if (sl.length () >= MAXSOCKBUF) 490 if (sl.length () >= MAXSOCKBUF)
481 { 491 {
482 LOG (llevError, "send_image_send: buffer overrun, %d > %d\n", sl.length (), MAXSOCKBUF); 492 LOG (llevError, "send_image_send: buffer overrun, %d > %d\n", sl.length (), MAXSOCKBUF);
483 abort (); 493 abort ();
484 } 494 }

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