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Comparing deliantra/server/socket/image.C (file contents):
Revision 1.50 by root, Tue Jul 24 04:55:34 2007 UTC vs.
Revision 1.74 by root, Sun Nov 11 18:21:21 2012 UTC

1/* 1/*
2 * This file is part of Crossfire TRT, the Roguelike Realtime MORPG. 2 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
3 * 3 *
4 * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team 4 * Copyright (©) 2005,2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5 * Copyright (©) 2001,2007 Mark Wedel 5 * Copyright (©) 2001 Mark Wedel
6 * Copyright (©) 1992,2007 Frank Tore Johansen 6 * Copyright (©) 1992 Frank Tore Johansen
7 * 7 *
8 * Crossfire TRT is free software: you can redistribute it and/or modify 8 * Deliantra is free software: you can redistribute it and/or modify it under
9 * it under the terms of the GNU General Public License as published by 9 * the terms of the Affero GNU General Public License as published by the
10 * the Free Software Foundation, either version 3 of the License, or 10 * Free Software Foundation, either version 3 of the License, or (at your
11 * (at your option) any later version. 11 * 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 Affero GNU General Public License
19 * along with this program. If not, see <http://www.gnu.org/licenses/>. 19 * and the GNU General Public License along with this program. If not, see
20 * <http://www.gnu.org/licenses/>.
20 * 21 *
21 * The authors can be reached via e-mail to <crossfire@schmorp.de> 22 * The authors can be reached via e-mail to <support@deliantra.net>
22 */ 23 */
23 24
24/** \file 25/*
25 * Image related communication 26 * Image related communication
26 *
27 * \date 2003-12-02
28 * 27 *
29 * This file deals with the image related communication to the 28 * This file deals with the image related communication to the
30 * client. I've located all the functions in this file - this 29 * client. I've located all the functions in this file - this
31 * localizes it more, and means that we don't need to declare 30 * localizes it more, and means that we don't need to declare
32 * things like all the structures as globals. 31 * things like all the structures as globals.
38#include "crc.h" 37#include "crc.h"
39 38
40#define MAX_IMAGE_SIZE 10000 39#define MAX_IMAGE_SIZE 10000
41 40
42/** 41/**
43 * Client tells us what type of faces it wants. Also sets
44 * the caching attribute.
45 *
46 */
47void
48SetFaceMode (char *buf, int len, client *ns)
49{
50 int mask = (atoi (buf) & CF_FACE_CACHE), mode = (atoi (buf) & ~CF_FACE_CACHE);
51
52 if (mode == CF_FACE_NONE)
53 ns->facecache = 1;
54 else if (mode != CF_FACE_PNG)
55 ns->send_packet_printf ("drawinfo %d %s", NDI_RED, "Warning - send unsupported face mode. Will use Png");
56
57 if (mask)
58 ns->facecache = 1;
59}
60
61/**
62 * client requested an image. send it rate-limited 42 * client requested an image. send it rate-limited
63 * before flushing. 43 * before flushing.
64 */ 44 */
65void 45void
66AskFaceCmd (char *buf, int len, client *ns) 46AskFaceCmd (char *buf, int len, client *ns)
67{ 47{
68 int idx = 0, pri = 0; 48 int idx = 0, pri = 0;
69 49
70 sscanf (buf, "%d %d", &idx, &pri); 50 sscanf (buf, "%d %d", &idx, &pri);
71 51
72 const facedata *d = face_data (idx, ns->faceset); 52 //TODO: somehow fetch default priority from send_fx here
73 53
54 const faceinfo *f = face_info (idx);
55
74 if (!d) 56 if (!f)
75 return; // doh 57 return; // doh
76 58
59 int set = ns->tileset;
60
61 if (!f->face [set].chksum_len)
62 set = 0;
63
64 /* cfperl_ix calls cf::face::ix which loads the data */
65 /* and then calls cf::client::send_ix to actually queue the ix */
66 cfperl_ix (ns, set, idx, pri);
67}
68
69void
70client::ix_send (faceidx idx, sint16 pri, SV *data_sv)
71{
72 STRLEN size;
73 char *data = SvPVbyte (data_sv, size);
77 client::ixsend ix; 74 ixsend ix;
78 75
79 ix.pri = pri; 76 ix.pri = pri;
80 ix.idx = idx; 77 ix.idx = idx;
81 ix.ofs = d->data.size (); 78 ix.ofs = size;
79 ix.data = (uint8 *)data;
80 ix.data_sv = SvREFCNT_inc (data_sv);
82 81
83 auto (pos, ns->ixface.end ()); 82 auto (pos, ixface.end ());
84 83
85 if (ns->fxix < 2)
86 {
87 // gcfclient does not support prioritising, older cfplus versions
88 // do not support interleaved transfers.
89 if (!ns->ixface.empty ())
90 pos = ns->ixface.end () - 1;
91 }
92 else
93 {
94 // the by far most common case will be to insert 84 // the by far most common case will be to insert
95 // near the end, so little looping. 85 // near the end, so little looping.
96 while (pos != ns->ixface.begin ()) 86 while (pos != ixface.begin ())
87 {
88 --pos;
89
90 // sort within 2k bins, to slightly prefer smaller images
91 if (pri > pos->pri || (pri == pos->pri && (ix.ofs >> 11) <= (pos->ofs >> 11)))
97 { 92 {
98 --pos;
99
100 // sort within 2k bins, to slightly prefer smaller images
101 if (pri > pos->pri || (pri == pos->pri && (ix.ofs >> 11) <= (pos->ofs >> 11)))
102 {
103 ++pos; 93 ++pos;
104 break; 94 break;
105 }
106 } 95 }
107 } 96 }
108 97
109 ns->ixface.insert (pos, ix); 98 ixface.insert (pos, ix);
110 99
111#if 0 100#if 0
112 for (auto (i, ns->ixface.begin ()); i != ns->ixface.end (); ++i) 101 for (auto (i, ixface.begin ()); i != ixface.end (); ++i)
113 fprintf (stderr, "<%d,%d> ", i->pri, i->ofs); 102 fprintf (stderr, "<%d,%d> ", i->pri, i->ofs);
114 fprintf (stderr, "\n"); 103 fprintf (stderr, "\n");
115#endif 104#endif
116} 105}
117 106
107void
108client::ix_pop ()
109{
110 ixsend &ix = ixface.back ();
111
112 SvREFCNT_dec (ix.data_sv);
113
114 ixface.pop_back ();
115}
116
118/** 117/**
119 * Tells client the picture it has to use 118 * Sends a face offer (fx) to a client.
120 * to smooth a picture number given as argument.
121 */
122void
123AskSmooth (char *buf, int len, client *ns)
124{
125 ns->send_face (atoi (buf), -100);
126 ns->flush_fx ();
127}
128
129// how lame
130static void print_facename (packet &sl, const facedata &d)
131{
132 for (int i = 0; i < CHKSUM_SIZE; ++i)
133 sl.printf ("%02x", d.chksum [i]);
134}
135
136// gcfclient uses the server-provided checksum for comparison, but always
137// writes a broken checksum to its cache file, so we have to provide
138// gcfclient with the same broken (and useless) checksum just to have it
139// cache the image despite its bugs.
140static uint32 gcfclient_checksum (const facedata *d)
141{
142 uint32 csum = 0;
143
144 for (std::string::const_iterator i = d->data.begin ();
145 i != d->data.end ();
146 ++i)
147 {
148 csum = rotate_right (csum);
149 csum += *(uint8 *)&*i;
150 }
151
152 return csum;
153}
154
155/**
156 * Sends a face to a client if they are in pixmap mode
157 * nothing gets sent in bitmap mode.
158 * If nocache is true (nonzero), ignore the cache setting from the client - 119 * If nocache is true (nonzero), ignore the cache setting from the client -
159 * this is needed for the askface, in which we really do want to send the 120 * this is needed for the askface, in which we really do want to send the
160 * face (and askface is the only place that should be setting it). Otherwise, 121 * face (and askface is the only place that should be setting it). Otherwise,
161 * we look at the facecache, and if set, send the image name. 122 * we look at the facecache, and if set, send the image name.
162 */ 123 */
169 130
170 faceinfo *f = face_info (facenum); 131 faceinfo *f = face_info (facenum);
171 132
172 if (!f) 133 if (!f)
173 { 134 {
174 LOG (llevError, "client::send_face (%d) out of bounds??\n", facenum); 135 LOG (llevError | logBacktrace, "client::send_face (%d) out of bounds??\n", facenum);
175 return; 136 return;
176 } 137 }
177 138
178 // refuse to send non-image faces 139 // refuse to send non-image faces unless requested
179 if (!fx_want [f->type]) 140 if (!fx_want [f->type])
180 return; 141 return;
181 142
182 if (faces_sent [facenum]) 143 if (faces_sent [facenum])
183 return; 144 return;
184 145
185 faces_sent[facenum] = true; 146 faces_sent [facenum] = true;
186 147
187 // if for some reason we let a client without face caching connect,
188 // we better support that decision here and implement it.
189 if (!facecache)
190 return send_image (facenum);
191
192 if (fxix)
193 {
194 fxface.push_back (facenum); 148 fxface.push_back (facenum);
195 return;
196 }
197
198 const facedata *d = f->data (faceset);
199
200 packet sl;
201
202 if (force_face0)
203 sl << "face " << uint16 (facenum);
204 else if (image2)
205 sl << "face2 " << uint16 (facenum) << uint8 (0) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0);
206 else
207 sl << "face1 " << uint16 (facenum) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0);
208
209 // how lame
210 print_facename (sl, *d);
211 send_packet (sl);
212
213 if (EMI_smooth)
214 {
215 if (f->smooth)
216 {
217 send_face (f->smooth);
218
219 packet sl ("smooth");
220
221 sl << uint16 (facenum)
222 << uint16 (f->smooth);
223
224 send_packet (sl);
225 }
226 }
227} 149}
228 150
229void client::flush_fx () 151void client::flush_fx ()
230{ 152{
231 while (!fxface.empty ()) 153 while (!fxface.empty ())
246 168
247 fx << ber32 (0) 169 fx << ber32 (0)
248 << uint8 (1) << uint8 (type); 170 << uint8 (1) << uint8 (type);
249 } 171 }
250 172
251 const facedata *d = f->data (faceset); 173 const facedata *d = f->data (tileset);
252 174
253 fx << ber32 (facenum) 175 fx << ber32 (facenum)
254 << data8 (d->chksum, CHKSUM_SIZE); 176 << data8 (d->chksum, d->chksum_len);
255 177
256 if (smoothing) 178 if (smoothing)
257 { 179 {
258 faceinfo *f = face_info (facenum); 180 faceinfo *f = face_info (facenum);
259 181
267 } 189 }
268 } 190 }
269 } 191 }
270 } 192 }
271 while (!fxface.empty () 193 while (!fxface.empty ()
272 && fx.room () > ber32::size + CHKSUM_SIZE + 1 + 3 /* type switch */ 194 && fx.room () > ber32::size + CHKSUM_MAXLEN + 1 + 3 /* type switch */
273 && sx.room () > ber32::size * 3); 195 && sx.room () > ber32::size * 3);
274 196
275 send_packet (fx); 197 send_packet (fx);
276 if (sx.length () > 3) send_packet (sx); 198 if (sx.length () > 3) send_packet (sx);
277 } 199 }
278}
279
280void
281client::send_image (faceidx facenum)
282{
283 // never send face 0. ever. it does not exist.
284 if (!facenum)
285 return;
286
287 const facedata *d = face_data (facenum, faceset);
288
289 faces_sent[facenum] = true;
290
291 if (!d)
292 {
293 LOG (llevError, "client::send_image (%d) out of bounds??\n", facenum);
294 return;
295 }
296
297 //TODO: check type here?
298
299 if (force_image_newmap)
300 force_newmap = true;
301
302 packet sl;
303
304 sl << (image2 ? "image2 " : "image ")
305 << uint32 (facenum);
306
307 if (image2)
308 sl << uint8 (0);
309
310 sl << uint32 (d->data.size ())
311 << data (d->data.data (), d->data.size ());
312
313 send_packet (sl);
314} 200}
315 201
316// send all faces of this object to the client 202// send all faces of this object to the client
317// this uses more bandwidth initially, but makes 203// this uses more bandwidth initially, but makes
318// animations look much smoother, and every client 204// animations look much smoother, and every client
322{ 208{
323 send_face (ob->face, 10); 209 send_face (ob->face, 10);
324 210
325 if (ob->animation_id) 211 if (ob->animation_id)
326 { 212 {
327 animation &anim = animations [ob->animation_id]; 213 const animation &anim = ob->anim ();
328 214
329 for (int i = 0; i < anim.num_animations; i++) 215 for (int i = 0; i < anim.num_animations; i++)
330 send_face (anim.faces [i], -10); 216 send_face (anim.faces [i], -10);
331 } 217 }
332} 218}
340 */ 226 */
341void 227void
342client::send_animation (short anim_num) 228client::send_animation (short anim_num)
343{ 229{
344 /* Do some checking on the anim_num we got. Note that the animations 230 /* Do some checking on the anim_num we got. Note that the animations
345 * are added in contigous order, so if the number is in the valid 231 * are added in contiguous order, so if the number is in the valid
346 * range, it must be a valid animation. 232 * range, it must be a valid animation.
347 */ 233 */
348 if (anim_num < 0 || anim_num >= animations.size ()) 234 if (anim_num < 0 || anim_num >= animations.size ())
349 { 235 {
350 LOG (llevError, "esrv_send_anim (%d) out of bounds??\n", anim_num); 236 LOG (llevError, "esrv_send_anim (%d) out of bounds??\n", anim_num);
360 * the face itself) down to the client. 246 * the face itself) down to the client.
361 */ 247 */
362 for (int i = 0; i < animations[anim_num].num_animations; i++) 248 for (int i = 0; i < animations[anim_num].num_animations; i++)
363 { 249 {
364 send_face (animations[anim_num].faces[i], -20); 250 send_face (animations[anim_num].faces[i], -20);
365 sl << uint16 (animations[anim_num].faces[i]); /* flags - not used right now */ 251 sl << uint16 (animations[anim_num].faces[i]);
366 } 252 }
367 253
368 send_packet (sl); 254 send_packet (sl);
369 255
370 anims_sent[anim_num] = 1; 256 anims_sent[anim_num] = 1;
371} 257}
372 258
373/**
374 * Sends the number of images, checksum of the face file,
375 * and the image_info file information. See the doc/Developers/protocol
376 * if you want further detail.
377 */
378void 259void
379send_image_info (client *ns, char *params) 260client::invalidate_face (faceidx idx)
380{ 261{
381 packet sl; 262 faces_sent [idx] = false;
382 263 force_newmap = true;
383 //TODO: second parameter is a checksum, but it makes no sense in this current framework
384 sl.printf ("replyinfo image_info\n%d\n%u\n", MAX_FACES, 0);
385
386 sl << "0:base:standard:0:32x32:none:The old 32x32 faceset.\n";
387
388 ns->send_packet (sl);
389} 264}
390 265
391/**
392 * Sends requested face information.
393 * \param ns socket to send to
394 * \param params contains first and last index of face
395 *
396 * For each image in [start..stop] sends
397 * - checksum
398 * - name
399 */
400void 266void
401send_image_sums (client *ns, char *params) 267client::invalidate_all_faces ()
402{ 268{
403 int start, stop; 269 faces_sent.reset ();
404 char *cp; 270 force_newmap = true;
405
406 packet sl;
407
408 start = atoi (params);
409 for (cp = params; *cp != '\0'; cp++)
410 if (*cp == ' ')
411 break;
412
413 stop = atoi (cp);
414 if (stop < start || *cp == '\0' || (stop - start) > 1000 || stop >= MAX_FACES)
415 {
416 sl.printf ("replyinfo image_sums %d %d", start, stop);
417 ns->send_packet (sl);
418 sl.reset ();
419 return;
420 }
421
422 sl.printf ("replyinfo image_sums %d %d ", start, stop);
423
424 for (int i = start; i <= stop && i < faces.size (); i++)
425 {
426 ns->faces_sent[i] = true;
427
428 const facedata *d = face_data (i, ns->faceset);
429
430 if (sl.room () < 2 + 4 + 1 + d->data.size () + 1)
431 break;
432
433 sl << uint16 (i)
434 << uint32 (0) // checksum
435 << uint8 (ns->faceset);
436
437 print_facename (sl, *d); sl << uint8 (0);
438 }
439
440 /* It would make more sense to catch this pre-emptively in the code above.
441 * however, if this really happens, we probably just want to cut down the
442 * size to less than 1000, since that is what we claim the protocol would
443 * support.
444 */
445 //TODO: taken care of above, should simply abort or make sure the above code is correct
446 if (sl.length () >= MAXSOCKBUF)
447 {
448 LOG (llevError, "send_image_send: buffer overrun, %d > %d\n", sl.length (), MAXSOCKBUF);
449 abort ();
450 }
451
452 ns->send_packet (sl);
453} 271}
454 272

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