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Comparing deliantra/server/socket/image.C (file contents):
Revision 1.53 by root, Tue Jul 31 20:08:21 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)
69 49
70 sscanf (buf, "%d %d", &idx, &pri); 50 sscanf (buf, "%d %d", &idx, &pri);
71 51
72 //TODO: somehow fetch default priority from send_fx here 52 //TODO: somehow fetch default priority from send_fx here
73 53
74 const facedata *d = face_data (idx, ns->faceset); 54 const faceinfo *f = face_info (idx);
75 55
76 if (!d) 56 if (!f)
77 return; // doh 57 return; // doh
78 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);
79 client::ixsend ix; 74 ixsend ix;
80 75
81 ix.pri = pri; 76 ix.pri = pri;
82 ix.idx = idx; 77 ix.idx = idx;
83 ix.ofs = d->data.size (); 78 ix.ofs = size;
79 ix.data = (uint8 *)data;
80 ix.data_sv = SvREFCNT_inc (data_sv);
84 81
85 auto (pos, ns->ixface.end ()); 82 auto (pos, ixface.end ());
86 83
87 if (ns->fxix < 2)
88 {
89 // gcfclient does not support prioritising, older cfplus versions
90 // do not support interleaved transfers.
91 if (!ns->ixface.empty ())
92 pos = ns->ixface.end () - 1;
93 }
94 else
95 {
96 // the by far most common case will be to insert 84 // the by far most common case will be to insert
97 // near the end, so little looping. 85 // near the end, so little looping.
98 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)))
99 { 92 {
100 --pos;
101
102 // sort within 2k bins, to slightly prefer smaller images
103 if (pri > pos->pri || (pri == pos->pri && (ix.ofs >> 11) <= (pos->ofs >> 11)))
104 {
105 ++pos; 93 ++pos;
106 break; 94 break;
107 }
108 } 95 }
109 } 96 }
110 97
111 ns->ixface.insert (pos, ix); 98 ixface.insert (pos, ix);
112 99
113#if 0 100#if 0
114 for (auto (i, ns->ixface.begin ()); i != ns->ixface.end (); ++i) 101 for (auto (i, ixface.begin ()); i != ixface.end (); ++i)
115 fprintf (stderr, "<%d,%d> ", i->pri, i->ofs); 102 fprintf (stderr, "<%d,%d> ", i->pri, i->ofs);
116 fprintf (stderr, "\n"); 103 fprintf (stderr, "\n");
117#endif 104#endif
118} 105}
119 106
107void
108client::ix_pop ()
109{
110 ixsend &ix = ixface.back ();
111
112 SvREFCNT_dec (ix.data_sv);
113
114 ixface.pop_back ();
115}
116
120/** 117/**
121 * Tells client the picture it has to use 118 * Sends a face offer (fx) to a client.
122 * to smooth a picture number given as argument.
123 */
124void
125AskSmooth (char *buf, int len, client *ns)
126{
127 ns->send_face (atoi (buf), -100);
128 ns->flush_fx ();
129}
130
131// how lame
132static void print_facename (packet &sl, const facedata &d)
133{
134 for (int i = 0; i < CHKSUM_SIZE; ++i)
135 sl.printf ("%02x", d.chksum [i]);
136}
137
138// gcfclient uses the server-provided checksum for comparison, but always
139// writes a broken checksum to its cache file, so we have to provide
140// gcfclient with the same broken (and useless) checksum just to have it
141// cache the image despite its bugs.
142static uint32 gcfclient_checksum (const facedata *d)
143{
144 uint32 csum = 0;
145
146 for (std::string::const_iterator i = d->data.begin ();
147 i != d->data.end ();
148 ++i)
149 {
150 csum = rotate_right (csum);
151 csum += *(uint8 *)&*i;
152 }
153
154 return csum;
155}
156
157/**
158 * Sends a face to a client if they are in pixmap mode
159 * nothing gets sent in bitmap mode.
160 * 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 -
161 * 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
162 * 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,
163 * 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.
164 */ 123 */
171 130
172 faceinfo *f = face_info (facenum); 131 faceinfo *f = face_info (facenum);
173 132
174 if (!f) 133 if (!f)
175 { 134 {
176 LOG (llevError, "client::send_face (%d) out of bounds??\n", facenum); 135 LOG (llevError | logBacktrace, "client::send_face (%d) out of bounds??\n", facenum);
177 return; 136 return;
178 } 137 }
179 138
180 // refuse to send non-image faces 139 // refuse to send non-image faces unless requested
181 if (!fx_want [f->type]) 140 if (!fx_want [f->type])
182 return; 141 return;
183 142
184 if (faces_sent [facenum]) 143 if (faces_sent [facenum])
185 return; 144 return;
186 145
187 faces_sent[facenum] = true; 146 faces_sent [facenum] = true;
188 147
189 // if for some reason we let a client without face caching connect,
190 // we better support that decision here and implement it.
191 if (!facecache)
192 return send_image (facenum);
193
194 if (fxix)
195 {
196 fxface.push_back (facenum); 148 fxface.push_back (facenum);
197 return;
198 }
199
200 const facedata *d = f->data (faceset);
201
202 packet sl;
203
204 if (force_face0)
205 sl << "face " << uint16 (facenum);
206 else if (image2)
207 sl << "face2 " << uint16 (facenum) << uint8 (0) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0);
208 else
209 sl << "face1 " << uint16 (facenum) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0);
210
211 // how lame
212 print_facename (sl, *d);
213 send_packet (sl);
214
215 if (EMI_smooth)
216 {
217 if (f->smooth)
218 {
219 send_face (f->smooth);
220
221 packet sl ("smooth");
222
223 sl << uint16 (facenum)
224 << uint16 (f->smooth);
225
226 send_packet (sl);
227 }
228 }
229} 149}
230 150
231void client::flush_fx () 151void client::flush_fx ()
232{ 152{
233 while (!fxface.empty ()) 153 while (!fxface.empty ())
248 168
249 fx << ber32 (0) 169 fx << ber32 (0)
250 << uint8 (1) << uint8 (type); 170 << uint8 (1) << uint8 (type);
251 } 171 }
252 172
253 const facedata *d = f->data (faceset); 173 const facedata *d = f->data (tileset);
254 174
255 fx << ber32 (facenum) 175 fx << ber32 (facenum)
256 << data8 (d->chksum, CHKSUM_SIZE); 176 << data8 (d->chksum, d->chksum_len);
257 177
258 if (smoothing) 178 if (smoothing)
259 { 179 {
260 faceinfo *f = face_info (facenum); 180 faceinfo *f = face_info (facenum);
261 181
269 } 189 }
270 } 190 }
271 } 191 }
272 } 192 }
273 while (!fxface.empty () 193 while (!fxface.empty ()
274 && fx.room () > ber32::size + CHKSUM_SIZE + 1 + 3 /* type switch */ 194 && fx.room () > ber32::size + CHKSUM_MAXLEN + 1 + 3 /* type switch */
275 && sx.room () > ber32::size * 3); 195 && sx.room () > ber32::size * 3);
276 196
277 send_packet (fx); 197 send_packet (fx);
278 if (sx.length () > 3) send_packet (sx); 198 if (sx.length () > 3) send_packet (sx);
279 } 199 }
280}
281
282void
283client::send_image (faceidx facenum)
284{
285 // never send face 0. ever. it does not exist.
286 if (!facenum)
287 return;
288
289 const facedata *d = face_data (facenum, faceset);
290
291 faces_sent[facenum] = true;
292
293 if (!d)
294 {
295 LOG (llevError, "client::send_image (%d) out of bounds??\n", facenum);
296 return;
297 }
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 if (const faceinfo *f = face_info (i))
426 if (ns->fx_want [f->type])
427 {
428 ns->faces_sent[i] = true;
429
430 const facedata *d = f->data (ns->faceset);
431
432 if (sl.room () < 2 + 4 + 1 + d->data.size () + 1)
433 break;
434
435 sl << uint16 (i)
436 << uint32 (0) // checksum
437 << uint8 (ns->faceset);
438
439 print_facename (sl, *d); sl << uint8 (0);
440 }
441
442 /* It would make more sense to catch this pre-emptively in the code above.
443 * however, if this really happens, we probably just want to cut down the
444 * size to less than 1000, since that is what we claim the protocol would
445 * support.
446 */
447 //TODO: taken care of above, should simply abort or make sure the above code is correct
448 if (sl.length () > MAXSOCKBUF)
449 {
450 LOG (llevError, "send_image_send: buffer overrun, %d > %d\n", sl.length (), MAXSOCKBUF);
451 abort ();
452 }
453
454 ns->send_packet (sl);
455} 271}
456 272

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