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. |
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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 | |
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205 | const facedata *d = face_data (idx, ns->faceset); |
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206 | |
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207 | if (!d) |
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208 | return; // doh |
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209 | |
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210 | client::ixsend ix; |
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211 | |
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212 | ix.pri = pri; |
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213 | ix.idx = idx; |
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214 | ix.ofs = d->data.size (); |
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215 | |
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216 | // this is (hopefully) a temporary fix around older cfplus versions not |
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217 | // supporting interleaved transfers |
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218 | ns->ixface.insert (ns->ixface.begin (), ix); |
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219 | |
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220 | #if 0 |
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221 | // the by far most common case will be to insert |
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222 | // right at the end, so no looping. |
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223 | auto (i, ns->ixface.end ()); |
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224 | for (; i != ns->ixface.begin (); ) |
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225 | if (pri >= (--i)->pri) |
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226 | break; |
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227 | |
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228 | ns->ixface.insert (i, ix); |
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229 | #endif |
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230 | } |
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231 | |
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232 | /** |
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233 | * Tells client the picture it has to use |
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234 | * to smooth a picture number given as argument. |
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235 | */ |
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236 | void |
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237 | AskSmooth (char *buf, int len, client *ns) |
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238 | { |
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239 | ns->send_face (atoi (buf)); |
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240 | ns->flush_fx (); |
207 | } |
241 | } |
208 | |
242 | |
209 | // how lame |
243 | // how lame |
210 | static void print_facename (packet &sl, const facedata &d) |
244 | static void print_facename (packet &sl, const facedata &d) |
211 | { |
245 | { |
212 | for (int i = 0; i < CHKSUM_SIZE; ++i) |
246 | for (int i = 0; i < CHKSUM_SIZE; ++i) |
213 | sl.printf ("%02x", d.chksum [i]); |
247 | sl.printf ("%02x", d.chksum [i]); |
214 | } |
248 | } |
215 | |
249 | |
216 | // gcfclient uses the server-provided checksum for comparison, |
250 | // gcfclient uses the server-provided checksum for comparison, but always |
217 | // but always wrotes a broken checksum to its cache file, so we |
251 | // writes a broken checksum to its cache file, so we have to provide |
218 | // have to provide gcfclient with a useless checksum just to |
252 | // gcfclient with the same broken (and useless) checksum just to have it |
219 | // have to cache the image despite its bugs. |
253 | // cache the image despite its bugs. |
220 | static uint32 gcfclient_checksum (const facedata *d) |
254 | static uint32 gcfclient_checksum (const facedata *d) |
221 | { |
255 | { |
222 | uint32 csum = 0; |
256 | uint32 csum = 0; |
223 | |
257 | |
224 | for (std::string::const_iterator i = d->data.begin (); |
258 | 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 |
273 | * 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, |
274 | * 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. |
275 | * we look at the facecache, and if set, send the image name. |
242 | */ |
276 | */ |
243 | void |
277 | void |
244 | esrv_send_face (client *ns, short face_num, int nocache) |
278 | client::send_face (faceidx facenum) |
245 | { |
279 | { |
246 | if (face_num <= 0 || face_num >= faces.size ()) |
280 | // never send face 0. ever. it does not exist. |
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281 | if (!facenum) |
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282 | return; |
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283 | |
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284 | const facedata *d = face_data (facenum, faceset); |
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285 | |
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286 | if (!d) |
247 | { |
287 | { |
248 | LOG (llevError, "esrv_send_face (%d) out of bounds??\n", face_num); |
288 | LOG (llevError, "client::send_face (%d) out of bounds??\n", facenum); |
249 | return; |
289 | return; |
250 | } |
290 | } |
251 | |
291 | |
252 | const facedata *d = face_data (face_num, ns->faceset); |
292 | if (faces_sent[facenum]) |
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293 | return; |
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294 | |
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295 | faces_sent[facenum] = true; |
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296 | |
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297 | // if for some reason we let a client without face caching connect, |
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298 | // we better support that decision here and implement it. |
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299 | if (!facecache) |
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300 | return send_image (facenum); |
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301 | |
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302 | if (fxix) |
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303 | { |
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304 | fxface.push_back (facenum); |
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305 | return; |
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306 | } |
253 | |
307 | |
254 | packet sl; |
308 | packet sl; |
255 | |
309 | |
256 | if (ns->facecache && !nocache) |
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257 | { |
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258 | if (ns->force_face0) |
310 | if (force_face0) |
259 | sl << "face " << uint16 (face_num); |
311 | sl << "face " << uint16 (facenum); |
260 | else if (ns->image2) |
312 | else if (image2) |
261 | sl << "face2 " << uint16 (face_num) << uint8 (0) << uint32 (ns->force_bad_checksum ? gcfclient_checksum (d) : 0); |
313 | sl << "face2 " << uint16 (facenum) << uint8 (0) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0); |
262 | else |
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263 | sl << "face1 " << uint16 (face_num) << uint32 (ns->force_bad_checksum ? gcfclient_checksum (d) : 0); |
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264 | |
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265 | // how lame |
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266 | print_facename (sl, *d); |
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267 | |
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268 | ns->send_packet (sl); |
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269 | } |
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270 | else |
314 | else |
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315 | sl << "face1 " << uint16 (facenum) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0); |
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316 | |
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317 | // how lame |
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318 | print_facename (sl, *d); |
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319 | send_packet (sl); |
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320 | |
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321 | if (EMI_smooth) |
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322 | { |
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323 | faceinfo *f = face_info (facenum); |
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324 | |
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325 | if (f->smooth) |
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326 | { |
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327 | send_face (f->smooth); |
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328 | |
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329 | packet sl ("smooth"); |
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330 | |
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331 | sl << uint16 (facenum) |
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332 | << uint16 (f->smooth); |
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333 | |
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334 | send_packet (sl); |
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335 | } |
271 | { |
336 | } |
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337 | } |
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338 | |
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339 | void client::flush_fx () |
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340 | { |
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341 | while (!fxface.empty ()) |
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342 | { |
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343 | packet fx ("fx"); |
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344 | packet sx ("sx"); |
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345 | |
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346 | do |
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347 | { |
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348 | faceidx facenum = fxface.back (); fxface.pop_back (); |
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349 | |
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350 | const facedata *d = face_data (facenum, faceset); |
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351 | |
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352 | if (d) |
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353 | { |
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354 | fx << ber32 (facenum) |
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355 | << data8 (d->chksum, CHKSUM_SIZE); |
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356 | |
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357 | if (smoothing) |
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358 | { |
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359 | faceinfo *f = face_info (facenum); |
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360 | |
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361 | if (f->smooth) |
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362 | { |
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363 | send_face (f->smooth); |
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364 | sx << ber32 (facenum) |
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365 | << ber32 (f->smooth) |
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366 | << ber32 (f->smoothlevel); |
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367 | } |
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368 | } |
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369 | } |
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370 | } |
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371 | while (!fxface.empty () |
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372 | && fx.room () > ber32::size + CHKSUM_SIZE + 1 |
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373 | && sx.room () > ber32::size * 3); |
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374 | |
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375 | send_packet (fx); |
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376 | if (sx.length () > 3) send_packet (sx); |
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377 | } |
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378 | } |
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379 | |
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380 | void |
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381 | client::send_image (faceidx facenum) |
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382 | { |
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383 | // never send face 0. ever. it does not exist. |
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384 | if (!facenum) |
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385 | return; |
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386 | |
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387 | const facedata *d = face_data (facenum, faceset); |
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388 | |
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389 | faces_sent[facenum] = true; |
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390 | |
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391 | if (!d) |
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392 | { |
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393 | LOG (llevError, "client::send_image (%d) out of bounds??\n", facenum); |
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394 | return; |
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395 | } |
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396 | |
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397 | //TODO: check type here? |
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398 | |
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399 | if (force_image_newmap) |
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400 | force_newmap = true; |
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401 | |
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402 | packet sl; |
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403 | |
272 | sl << (ns->image2 ? "image2 " : "image ") |
404 | sl << (image2 ? "image2 " : "image ") |
273 | << uint32 (face_num); |
405 | << uint32 (facenum); |
274 | |
406 | |
275 | if (ns->image2) |
407 | if (image2) |
276 | sl << uint8 (0); |
408 | sl << uint8 (0); |
277 | |
409 | |
278 | sl << uint32 (d->data.size ()) |
410 | sl << uint32 (d->data.size ()) |
279 | << data (d->data.data (), d->data.size ()); |
411 | << data (d->data.data (), d->data.size ()); |
280 | |
412 | |
281 | ns->send_packet (sl); |
413 | send_packet (sl); |
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414 | } |
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415 | |
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416 | // send all faces of this object to the client |
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417 | // this uses more bandwidth initially, but makes |
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418 | // animations look much smoother, and every client |
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419 | // is supposed to do client-side caching anyways. |
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420 | void |
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421 | client::send_faces (object *ob) |
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422 | { |
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423 | send_face (ob->face); |
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424 | |
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425 | if (ob->animation_id) |
282 | } |
426 | { |
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427 | animation &anim = animations [ob->animation_id]; |
283 | |
428 | |
284 | ns->faces_sent[face_num] |= NS_FACESENT_FACE; |
429 | for (int i = 0; i < anim.num_animations; i++) |
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430 | send_face (anim.faces [i]); |
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431 | } |
|
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432 | } |
|
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433 | |
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434 | /** |
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435 | * Need to send an animation sequence to the client. |
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436 | * We will send appropriate face commands to the client if we haven't |
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437 | * sent them the face yet (this can become quite costly in terms of |
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438 | * how much we are sending - on the other hand, this should only happen |
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439 | * when the player logs in and picks stuff up. |
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440 | */ |
|
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441 | void |
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442 | client::send_animation (short anim_num) |
|
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443 | { |
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444 | /* Do some checking on the anim_num we got. Note that the animations |
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445 | * are added in contigous order, so if the number is in the valid |
|
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446 | * range, it must be a valid animation. |
|
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447 | */ |
|
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448 | if (anim_num < 0 || anim_num >= animations.size ()) |
|
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449 | { |
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450 | LOG (llevError, "esrv_send_anim (%d) out of bounds??\n", anim_num); |
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451 | return; |
|
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452 | } |
|
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453 | |
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454 | packet sl ("anim"); |
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455 | |
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456 | sl << uint16 (anim_num) |
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457 | << uint16 (0); /* flags - not used right now */ |
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458 | |
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459 | /* Build up the list of faces. Also, send any information (ie, the |
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460 | * the face itself) down to the client. |
|
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461 | */ |
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462 | for (int i = 0; i < animations[anim_num].num_animations; i++) |
|
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463 | { |
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464 | send_face (animations[anim_num].faces[i]); |
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465 | sl << uint16 (animations[anim_num].faces[i]); /* flags - not used right now */ |
|
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466 | } |
|
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467 | |
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468 | send_packet (sl); |
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469 | |
|
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470 | anims_sent[anim_num] = 1; |
285 | } |
471 | } |
286 | |
472 | |
287 | /** |
473 | /** |
288 | * Sends the number of images, checksum of the face file, |
474 | * Sends the number of images, checksum of the face file, |
289 | * and the image_info file information. See the doc/Developers/protocol |
475 | * and the image_info file information. See the doc/Developers/protocol |
290 | * if you want further detail. |
476 | * if you want further detail. |
291 | */ |
477 | */ |
292 | |
|
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293 | void |
478 | void |
294 | send_image_info (client *ns, char *params) |
479 | send_image_info (client *ns, char *params) |
295 | { |
480 | { |
296 | packet sl; |
481 | packet sl; |
297 | |
482 | |
… | |
… | |
336 | |
521 | |
337 | sl.printf ("replyinfo image_sums %d %d ", start, stop); |
522 | sl.printf ("replyinfo image_sums %d %d ", start, stop); |
338 | |
523 | |
339 | for (int i = start; i <= stop && i < faces.size (); i++) |
524 | for (int i = start; i <= stop && i < faces.size (); i++) |
340 | { |
525 | { |
341 | ns->faces_sent[i] |= NS_FACESENT_FACE; |
526 | ns->faces_sent[i] = true; |
342 | |
527 | |
343 | const facedata *d = face_data (i, ns->faceset); |
528 | const facedata *d = face_data (i, ns->faceset); |
344 | |
529 | |
345 | if (sl.room () < 2 + 4 + 1 + d->data.size () + 1) |
530 | if (sl.room () < 2 + 4 + 1 + d->data.size () + 1) |
346 | break; |
531 | break; |