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. |
|
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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 | { |
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201 | int idx = 0, pri = 0; |
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202 | |
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203 | sscanf (buf, "%d %d", &idx, &pri); |
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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 | auto (pos, ns->ixface.end ()); |
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217 | |
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218 | if (ns->fxix < 2) |
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219 | { |
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220 | // gcfclient does not support prioritising, older cfplus versions |
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221 | // do not support interleaved transfers. |
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222 | if (!ns->ixface.empty ()) |
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223 | pos = ns->ixface.end () - 1; |
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224 | } |
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225 | else |
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226 | { |
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227 | // the by far most common case will be to insert |
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228 | // near the end, so little looping. |
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229 | while (pos != ns->ixface.begin ()) |
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230 | { |
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231 | --pos; |
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232 | |
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233 | // sort within 2k bins, to slightly prefer smaller images |
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234 | if (pri > pos->pri || (pri == pos->pri && (ix.ofs >> 11) <= (pos->ofs >> 11))) |
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235 | { |
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236 | ++pos; |
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237 | break; |
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238 | } |
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239 | } |
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240 | } |
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241 | |
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242 | ns->ixface.insert (pos, ix); |
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243 | |
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244 | #if 0 |
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245 | for (auto (i, ns->ixface.begin ()); i != ns->ixface.end (); ++i) |
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246 | fprintf (stderr, "<%d,%d> ", i->pri, i->ofs); |
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247 | fprintf (stderr, "\n"); |
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248 | #endif |
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249 | } |
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250 | |
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251 | /** |
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252 | * Tells client the picture it has to use |
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253 | * to smooth a picture number given as argument. |
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254 | */ |
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255 | void |
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256 | AskSmooth (char *buf, int len, client *ns) |
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257 | { |
203 | ns->send_face (atoi (buf), 1); |
258 | ns->send_face (atoi (buf)); |
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259 | ns->flush_fx (); |
204 | } |
260 | } |
205 | |
261 | |
206 | // how lame |
262 | // how lame |
207 | static void print_facename (packet &sl, const facedata &d) |
263 | static void print_facename (packet &sl, const facedata &d) |
208 | { |
264 | { |
209 | for (int i = 0; i < CHKSUM_SIZE; ++i) |
265 | for (int i = 0; i < CHKSUM_SIZE; ++i) |
210 | sl.printf ("%02x", d.chksum [i]); |
266 | sl.printf ("%02x", d.chksum [i]); |
211 | } |
267 | } |
212 | |
268 | |
213 | // gcfclient uses the server-provided checksum for comparison, |
269 | // gcfclient uses the server-provided checksum for comparison, but always |
214 | // but always wrotes a broken checksum to its cache file, so we |
270 | // writes a broken checksum to its cache file, so we have to provide |
215 | // have to provide gcfclient with a useless checksum just to |
271 | // gcfclient with the same broken (and useless) checksum just to have it |
216 | // have to cache the image despite its bugs. |
272 | // cache the image despite its bugs. |
217 | static uint32 gcfclient_checksum (const facedata *d) |
273 | static uint32 gcfclient_checksum (const facedata *d) |
218 | { |
274 | { |
219 | uint32 csum = 0; |
275 | uint32 csum = 0; |
220 | |
276 | |
221 | for (std::string::const_iterator i = d->data.begin (); |
277 | for (std::string::const_iterator i = d->data.begin (); |
… | |
… | |
236 | * 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 |
237 | * 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, |
238 | * 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. |
239 | */ |
295 | */ |
240 | void |
296 | void |
241 | client::send_face (faceidx facenum, bool forced) |
297 | client::send_face (faceidx facenum) |
242 | { |
298 | { |
243 | // never send face 0. ever. it does not exist. |
299 | // never send face 0. ever. it does not exist. |
244 | if (!facenum) |
300 | if (!facenum) |
245 | return; |
301 | return; |
246 | |
302 | |
… | |
… | |
250 | { |
306 | { |
251 | LOG (llevError, "client::send_face (%d) out of bounds??\n", facenum); |
307 | LOG (llevError, "client::send_face (%d) out of bounds??\n", facenum); |
252 | return; |
308 | return; |
253 | } |
309 | } |
254 | |
310 | |
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311 | faceinfo *f = face_info (facenum); |
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312 | |
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313 | // refuse tos end non-image faces |
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314 | if (f->type) |
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315 | return; |
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316 | |
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317 | if (!must_send_face (facenum)) |
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318 | return; |
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319 | |
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320 | // if for some reason we let a client without face caching connect, |
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321 | // we better support that decision here and implement it. |
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322 | if (!facecache) |
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323 | return send_image (facenum); |
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324 | |
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325 | if (fxix) |
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326 | { |
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327 | fxface.push_back (facenum); |
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328 | return; |
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329 | } |
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330 | |
255 | packet sl; |
331 | packet sl; |
256 | |
332 | |
257 | if (facecache && !forced) |
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258 | { |
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259 | if (faces_sent[facenum] & NS_FACESENT_FACE) |
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260 | return; |
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261 | |
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262 | faces_sent[facenum] |= NS_FACESENT_FACE; |
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263 | |
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264 | if (force_face0) |
333 | if (force_face0) |
265 | sl << "face " << uint16 (facenum); |
334 | sl << "face " << uint16 (facenum); |
266 | else if (image2) |
335 | else if (image2) |
267 | sl << "face2 " << uint16 (facenum) << uint8 (0) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0); |
336 | sl << "face2 " << uint16 (facenum) << uint8 (0) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0); |
268 | else |
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269 | sl << "face1 " << uint16 (facenum) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0); |
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270 | |
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271 | // how lame |
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272 | print_facename (sl, *d); |
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273 | } |
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274 | else |
337 | else |
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338 | sl << "face1 " << uint16 (facenum) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0); |
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339 | |
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340 | // how lame |
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341 | print_facename (sl, *d); |
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342 | send_packet (sl); |
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343 | |
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344 | if (EMI_smooth) |
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345 | { |
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346 | if (f->smooth) |
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347 | { |
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348 | send_face (f->smooth); |
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349 | |
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350 | packet sl ("smooth"); |
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351 | |
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352 | sl << uint16 (facenum) |
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353 | << uint16 (f->smooth); |
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354 | |
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355 | send_packet (sl); |
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356 | } |
275 | { |
357 | } |
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358 | } |
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359 | |
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360 | void client::flush_fx () |
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361 | { |
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362 | while (!fxface.empty ()) |
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363 | { |
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364 | packet fx ("fx"); |
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365 | packet sx ("sx"); |
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366 | |
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367 | do |
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368 | { |
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369 | faceidx facenum = fxface.back (); fxface.pop_back (); |
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370 | |
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371 | const facedata *d = face_data (facenum, faceset); |
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372 | |
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373 | if (d) |
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374 | { |
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375 | fx << ber32 (facenum) |
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376 | << data8 (d->chksum, CHKSUM_SIZE); |
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377 | |
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378 | if (smoothing) |
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379 | { |
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380 | faceinfo *f = face_info (facenum); |
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381 | |
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382 | if (f->smooth) |
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383 | { |
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384 | send_face (f->smooth); |
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385 | sx << ber32 (facenum) |
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386 | << ber32 (f->smooth) |
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387 | << ber32 (f->smoothlevel); |
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388 | } |
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389 | } |
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390 | } |
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391 | } |
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392 | while (!fxface.empty () |
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393 | && fx.room () > ber32::size + CHKSUM_SIZE + 1 |
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394 | && sx.room () > ber32::size * 3); |
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395 | |
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396 | send_packet (fx); |
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397 | if (sx.length () > 3) send_packet (sx); |
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398 | } |
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399 | } |
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400 | |
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401 | void |
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402 | client::send_image (faceidx facenum) |
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403 | { |
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404 | // never send face 0. ever. it does not exist. |
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405 | if (!facenum) |
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406 | return; |
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407 | |
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408 | const facedata *d = face_data (facenum, faceset); |
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409 | |
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410 | faces_sent[facenum] = true; |
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411 | |
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412 | if (!d) |
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413 | { |
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414 | LOG (llevError, "client::send_image (%d) out of bounds??\n", facenum); |
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415 | return; |
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416 | } |
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417 | |
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418 | //TODO: check type here? |
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419 | |
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420 | if (force_image_newmap) |
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421 | force_newmap = true; |
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422 | |
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423 | packet sl; |
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424 | |
276 | sl << (image2 ? "image2 " : "image ") |
425 | sl << (image2 ? "image2 " : "image ") |
277 | << uint32 (facenum); |
426 | << uint32 (facenum); |
278 | |
427 | |
279 | if (image2) |
428 | if (image2) |
280 | sl << uint8 (0); |
429 | sl << uint8 (0); |
281 | |
430 | |
282 | sl << uint32 (d->data.size ()) |
431 | sl << uint32 (d->data.size ()) |
283 | << data (d->data.data (), d->data.size ()); |
432 | << data (d->data.data (), d->data.size ()); |
284 | } |
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285 | |
433 | |
286 | send_packet (sl); |
434 | send_packet (sl); |
287 | } |
435 | } |
288 | |
436 | |
289 | // send all faces of this object to the client |
437 | // send all faces of this object to the client |
… | |
… | |
300 | animation &anim = animations [ob->animation_id]; |
448 | animation &anim = animations [ob->animation_id]; |
301 | |
449 | |
302 | for (int i = 0; i < anim.num_animations; i++) |
450 | for (int i = 0; i < anim.num_animations; i++) |
303 | send_face (anim.faces [i]); |
451 | send_face (anim.faces [i]); |
304 | } |
452 | } |
305 | } |
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306 | |
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307 | /** |
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308 | * A lot like the old AskSmooth (in fact, now called by AskSmooth). |
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309 | * Basically, it makes no sense to wait for the client to request a |
|
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310 | * a piece of data from us that we know the client wants. So |
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311 | * if we know the client wants it, might as well push it to the |
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312 | * client. |
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313 | */ |
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314 | void |
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315 | client::send_smooth (faceidx face) |
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316 | { |
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317 | faceinfo *f = face_info (face); |
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318 | |
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319 | if (!f) |
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320 | return; |
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321 | |
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322 | if (faces_sent[face] & NS_FACESENT_SMOOTH) |
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323 | return; |
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324 | |
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325 | faces_sent[face] |= NS_FACESENT_SMOOTH; |
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326 | |
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327 | /* If we can't find a face, return and set it so we won't try to send this |
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328 | * again. |
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329 | */ |
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330 | if (!f->smooth) |
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331 | { |
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332 | LOG (llevError, "could not findsmooth for %d.\n", face); |
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333 | return; |
|
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334 | } |
|
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335 | |
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336 | send_face (f->smooth); |
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337 | |
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338 | packet sl ("smooth"); |
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339 | |
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340 | sl << uint16 (face) |
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341 | << uint16 (f->smooth); |
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342 | |
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343 | send_packet (sl); |
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344 | } |
453 | } |
345 | |
454 | |
346 | /** |
455 | /** |
347 | * Need to send an animation sequence to the client. |
456 | * Need to send an animation sequence to the client. |
348 | * We will send appropriate face commands to the client if we haven't |
457 | * We will send appropriate face commands to the client if we haven't |
… | |
… | |
355 | { |
464 | { |
356 | /* Do some checking on the anim_num we got. Note that the animations |
465 | /* Do some checking on the anim_num we got. Note that the animations |
357 | * are added in contigous order, so if the number is in the valid |
466 | * are added in contigous order, so if the number is in the valid |
358 | * range, it must be a valid animation. |
467 | * range, it must be a valid animation. |
359 | */ |
468 | */ |
360 | if (anim_num < 0 || anim_num > num_animations) |
469 | if (anim_num < 0 || anim_num >= animations.size ()) |
361 | { |
470 | { |
362 | LOG (llevError, "esrv_send_anim (%d) out of bounds??\n", anim_num); |
471 | LOG (llevError, "esrv_send_anim (%d) out of bounds??\n", anim_num); |
363 | return; |
472 | return; |
364 | } |
473 | } |
365 | |
474 | |
… | |
… | |
433 | |
542 | |
434 | sl.printf ("replyinfo image_sums %d %d ", start, stop); |
543 | sl.printf ("replyinfo image_sums %d %d ", start, stop); |
435 | |
544 | |
436 | for (int i = start; i <= stop && i < faces.size (); i++) |
545 | for (int i = start; i <= stop && i < faces.size (); i++) |
437 | { |
546 | { |
438 | ns->faces_sent[i] |= NS_FACESENT_FACE; |
547 | ns->faces_sent[i] = true; |
439 | |
548 | |
440 | const facedata *d = face_data (i, ns->faceset); |
549 | const facedata *d = face_data (i, ns->faceset); |
441 | |
550 | |
442 | if (sl.room () < 2 + 4 + 1 + d->data.size () + 1) |
551 | if (sl.room () < 2 + 4 + 1 + d->data.size () + 1) |
443 | break; |
552 | break; |