1 |
elmex |
1.1 |
/* |
2 |
root |
1.55 |
* This file is part of Deliantra, the Roguelike Realtime MMORPG. |
3 |
root |
1.42 |
* |
4 |
root |
1.55 |
* Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
5 |
root |
1.42 |
* Copyright (©) 2001,2007 Mark Wedel |
6 |
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* Copyright (©) 1992,2007 Frank Tore Johansen |
7 |
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* |
8 |
root |
1.55 |
* Deliantra is free software: you can redistribute it and/or modify |
9 |
root |
1.44 |
* it under the terms of the GNU General Public License as published by |
10 |
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* the Free Software Foundation, either version 3 of the License, or |
11 |
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* (at your option) any later version. |
12 |
root |
1.42 |
* |
13 |
root |
1.44 |
* This program is distributed in the hope that it will be useful, |
14 |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 |
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* GNU General Public License for more details. |
17 |
root |
1.42 |
* |
18 |
root |
1.44 |
* You should have received a copy of the GNU General Public License |
19 |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
20 |
root |
1.42 |
* |
21 |
root |
1.55 |
* The authors can be reached via e-mail to <support@deliantra.net> |
22 |
root |
1.17 |
*/ |
23 |
elmex |
1.1 |
|
24 |
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/** \file |
25 |
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* Image related communication |
26 |
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* |
27 |
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* \date 2003-12-02 |
28 |
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* |
29 |
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* This file deals with the image related communication to the |
30 |
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* client. I've located all the functions in this file - this |
31 |
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* localizes it more, and means that we don't need to declare |
32 |
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* things like all the structures as globals. |
33 |
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*/ |
34 |
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|
35 |
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#include <global.h> |
36 |
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#include <sproto.h> |
37 |
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|
38 |
root |
1.20 |
#include "crc.h" |
39 |
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|
40 |
elmex |
1.1 |
#define MAX_IMAGE_SIZE 10000 |
41 |
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|
42 |
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/** |
43 |
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* Client tells us what type of faces it wants. Also sets |
44 |
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* the caching attribute. |
45 |
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* |
46 |
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*/ |
47 |
root |
1.3 |
void |
48 |
root |
1.13 |
SetFaceMode (char *buf, int len, client *ns) |
49 |
elmex |
1.1 |
{ |
50 |
root |
1.3 |
int mask = (atoi (buf) & CF_FACE_CACHE), mode = (atoi (buf) & ~CF_FACE_CACHE); |
51 |
elmex |
1.1 |
|
52 |
root |
1.3 |
if (mode == CF_FACE_NONE) |
53 |
root |
1.7 |
ns->facecache = 1; |
54 |
root |
1.3 |
else if (mode != CF_FACE_PNG) |
55 |
root |
1.14 |
ns->send_packet_printf ("drawinfo %d %s", NDI_RED, "Warning - send unsupported face mode. Will use Png"); |
56 |
root |
1.7 |
|
57 |
root |
1.3 |
if (mask) |
58 |
root |
1.7 |
ns->facecache = 1; |
59 |
elmex |
1.1 |
} |
60 |
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|
61 |
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/** |
62 |
root |
1.43 |
* client requested an image. send it rate-limited |
63 |
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* before flushing. |
64 |
elmex |
1.1 |
*/ |
65 |
root |
1.3 |
void |
66 |
root |
1.43 |
AskFaceCmd (char *buf, int len, client *ns) |
67 |
elmex |
1.1 |
{ |
68 |
root |
1.43 |
int idx = 0, pri = 0; |
69 |
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|
70 |
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sscanf (buf, "%d %d", &idx, &pri); |
71 |
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|
72 |
root |
1.51 |
//TODO: somehow fetch default priority from send_fx here |
73 |
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|
74 |
root |
1.43 |
const facedata *d = face_data (idx, ns->faceset); |
75 |
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|
76 |
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if (!d) |
77 |
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return; // doh |
78 |
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|
79 |
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client::ixsend ix; |
80 |
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|
81 |
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ix.pri = pri; |
82 |
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ix.idx = idx; |
83 |
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ix.ofs = d->data.size (); |
84 |
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|
85 |
root |
1.46 |
auto (pos, ns->ixface.end ()); |
86 |
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|
87 |
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if (ns->fxix < 2) |
88 |
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{ |
89 |
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// gcfclient does not support prioritising, older cfplus versions |
90 |
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// do not support interleaved transfers. |
91 |
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if (!ns->ixface.empty ()) |
92 |
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pos = ns->ixface.end () - 1; |
93 |
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} |
94 |
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else |
95 |
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{ |
96 |
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// the by far most common case will be to insert |
97 |
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// near the end, so little looping. |
98 |
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while (pos != ns->ixface.begin ()) |
99 |
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{ |
100 |
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--pos; |
101 |
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|
102 |
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// sort within 2k bins, to slightly prefer smaller images |
103 |
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if (pri > pos->pri || (pri == pos->pri && (ix.ofs >> 11) <= (pos->ofs >> 11))) |
104 |
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{ |
105 |
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++pos; |
106 |
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break; |
107 |
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} |
108 |
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} |
109 |
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} |
110 |
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111 |
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ns->ixface.insert (pos, ix); |
112 |
root |
1.45 |
|
113 |
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#if 0 |
114 |
root |
1.46 |
for (auto (i, ns->ixface.begin ()); i != ns->ixface.end (); ++i) |
115 |
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fprintf (stderr, "<%d,%d> ", i->pri, i->ofs); |
116 |
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fprintf (stderr, "\n"); |
117 |
root |
1.45 |
#endif |
118 |
root |
1.43 |
} |
119 |
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120 |
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/** |
121 |
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* Tells client the picture it has to use |
122 |
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* to smooth a picture number given as argument. |
123 |
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*/ |
124 |
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void |
125 |
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AskSmooth (char *buf, int len, client *ns) |
126 |
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{ |
127 |
root |
1.50 |
ns->send_face (atoi (buf), -100); |
128 |
root |
1.43 |
ns->flush_fx (); |
129 |
elmex |
1.1 |
} |
130 |
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131 |
root |
1.24 |
// how lame |
132 |
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static void print_facename (packet &sl, const facedata &d) |
133 |
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{ |
134 |
root |
1.25 |
for (int i = 0; i < CHKSUM_SIZE; ++i) |
135 |
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sl.printf ("%02x", d.chksum [i]); |
136 |
root |
1.24 |
} |
137 |
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|
138 |
root |
1.32 |
// gcfclient uses the server-provided checksum for comparison, but always |
139 |
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// writes a broken checksum to its cache file, so we have to provide |
140 |
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// gcfclient with the same broken (and useless) checksum just to have it |
141 |
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// cache the image despite its bugs. |
142 |
root |
1.26 |
static uint32 gcfclient_checksum (const facedata *d) |
143 |
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{ |
144 |
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uint32 csum = 0; |
145 |
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|
146 |
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for (std::string::const_iterator i = d->data.begin (); |
147 |
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i != d->data.end (); |
148 |
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++i) |
149 |
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{ |
150 |
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csum = rotate_right (csum); |
151 |
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csum += *(uint8 *)&*i; |
152 |
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} |
153 |
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154 |
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return csum; |
155 |
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} |
156 |
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|
157 |
elmex |
1.1 |
/** |
158 |
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* Sends a face to a client if they are in pixmap mode |
159 |
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* nothing gets sent in bitmap mode. |
160 |
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* If nocache is true (nonzero), ignore the cache setting from the client - |
161 |
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* this is needed for the askface, in which we really do want to send the |
162 |
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* face (and askface is the only place that should be setting it). Otherwise, |
163 |
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* we look at the facecache, and if set, send the image name. |
164 |
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*/ |
165 |
root |
1.3 |
void |
166 |
root |
1.50 |
client::send_face (faceidx facenum, int pri) |
167 |
elmex |
1.1 |
{ |
168 |
root |
1.28 |
// never send face 0. ever. it does not exist. |
169 |
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if (!facenum) |
170 |
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return; |
171 |
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|
172 |
root |
1.50 |
faceinfo *f = face_info (facenum); |
173 |
root |
1.28 |
|
174 |
root |
1.50 |
if (!f) |
175 |
root |
1.3 |
{ |
176 |
root |
1.54 |
LOG (llevError | logBacktrace, "client::send_face (%d) out of bounds??\n", facenum); |
177 |
root |
1.3 |
return; |
178 |
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} |
179 |
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|
180 |
root |
1.50 |
// refuse to send non-image faces |
181 |
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if (!fx_want [f->type]) |
182 |
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return; |
183 |
root |
1.49 |
|
184 |
root |
1.50 |
if (faces_sent [facenum]) |
185 |
root |
1.48 |
return; |
186 |
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|
187 |
root |
1.50 |
faces_sent[facenum] = true; |
188 |
root |
1.32 |
|
189 |
root |
1.38 |
// if for some reason we let a client without face caching connect, |
190 |
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// we better support that decision here and implement it. |
191 |
root |
1.33 |
if (!facecache) |
192 |
root |
1.38 |
return send_image (facenum); |
193 |
root |
1.33 |
|
194 |
root |
1.39 |
if (fxix) |
195 |
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{ |
196 |
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fxface.push_back (facenum); |
197 |
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return; |
198 |
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} |
199 |
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|
200 |
root |
1.50 |
const facedata *d = f->data (faceset); |
201 |
|
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|
202 |
root |
1.8 |
packet sl; |
203 |
root |
1.3 |
|
204 |
root |
1.32 |
if (force_face0) |
205 |
|
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sl << "face " << uint16 (facenum); |
206 |
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else if (image2) |
207 |
|
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sl << "face2 " << uint16 (facenum) << uint8 (0) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0); |
208 |
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else |
209 |
|
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sl << "face1 " << uint16 (facenum) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0); |
210 |
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|
211 |
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// how lame |
212 |
|
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print_facename (sl, *d); |
213 |
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send_packet (sl); |
214 |
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|
215 |
root |
1.40 |
if (EMI_smooth) |
216 |
root |
1.3 |
{ |
217 |
root |
1.40 |
if (f->smooth) |
218 |
|
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{ |
219 |
|
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send_face (f->smooth); |
220 |
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|
221 |
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packet sl ("smooth"); |
222 |
root |
1.30 |
|
223 |
root |
1.40 |
sl << uint16 (facenum) |
224 |
|
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<< uint16 (f->smooth); |
225 |
root |
1.31 |
|
226 |
root |
1.40 |
send_packet (sl); |
227 |
|
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} |
228 |
root |
1.32 |
} |
229 |
|
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} |
230 |
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|
231 |
root |
1.39 |
void client::flush_fx () |
232 |
|
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{ |
233 |
|
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while (!fxface.empty ()) |
234 |
|
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{ |
235 |
root |
1.40 |
packet fx ("fx"); |
236 |
|
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packet sx ("sx"); |
237 |
root |
1.50 |
int type = 0; |
238 |
root |
1.39 |
|
239 |
|
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do |
240 |
|
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{ |
241 |
|
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faceidx facenum = fxface.back (); fxface.pop_back (); |
242 |
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|
243 |
root |
1.50 |
if (const faceinfo *f = face_info (facenum)) |
244 |
|
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{ |
245 |
|
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if (f->type != type) |
246 |
|
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{ |
247 |
|
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type = f->type; |
248 |
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|
249 |
|
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fx << ber32 (0) |
250 |
|
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<< uint8 (1) << uint8 (type); |
251 |
|
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} |
252 |
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|
253 |
|
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const facedata *d = f->data (faceset); |
254 |
root |
1.39 |
|
255 |
root |
1.40 |
fx << ber32 (facenum) |
256 |
root |
1.39 |
<< data8 (d->chksum, CHKSUM_SIZE); |
257 |
|
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|
258 |
root |
1.40 |
if (smoothing) |
259 |
|
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{ |
260 |
|
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faceinfo *f = face_info (facenum); |
261 |
|
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|
262 |
|
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if (f->smooth) |
263 |
|
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{ |
264 |
root |
1.50 |
send_face (f->smooth, -110); |
265 |
|
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|
266 |
root |
1.40 |
sx << ber32 (facenum) |
267 |
|
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<< ber32 (f->smooth) |
268 |
|
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<< ber32 (f->smoothlevel); |
269 |
|
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} |
270 |
|
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} |
271 |
root |
1.39 |
} |
272 |
|
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} |
273 |
root |
1.40 |
while (!fxface.empty () |
274 |
root |
1.50 |
&& fx.room () > ber32::size + CHKSUM_SIZE + 1 + 3 /* type switch */ |
275 |
root |
1.40 |
&& sx.room () > ber32::size * 3); |
276 |
root |
1.39 |
|
277 |
root |
1.40 |
send_packet (fx); |
278 |
|
|
if (sx.length () > 3) send_packet (sx); |
279 |
root |
1.39 |
} |
280 |
|
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} |
281 |
|
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|
282 |
root |
1.32 |
void |
283 |
|
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client::send_image (faceidx facenum) |
284 |
|
|
{ |
285 |
|
|
// never send face 0. ever. it does not exist. |
286 |
|
|
if (!facenum) |
287 |
|
|
return; |
288 |
root |
1.31 |
|
289 |
root |
1.32 |
const facedata *d = face_data (facenum, faceset); |
290 |
root |
1.30 |
|
291 |
root |
1.43 |
faces_sent[facenum] = true; |
292 |
|
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|
293 |
root |
1.32 |
if (!d) |
294 |
|
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{ |
295 |
|
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LOG (llevError, "client::send_image (%d) out of bounds??\n", facenum); |
296 |
|
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return; |
297 |
|
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} |
298 |
root |
1.43 |
|
299 |
root |
1.36 |
if (force_image_newmap) |
300 |
|
|
force_newmap = true; |
301 |
|
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|
302 |
root |
1.32 |
packet sl; |
303 |
root |
1.30 |
|
304 |
root |
1.32 |
sl << (image2 ? "image2 " : "image ") |
305 |
|
|
<< uint32 (facenum); |
306 |
root |
1.6 |
|
307 |
root |
1.32 |
if (image2) |
308 |
|
|
sl << uint8 (0); |
309 |
root |
1.6 |
|
310 |
root |
1.32 |
sl << uint32 (d->data.size ()) |
311 |
|
|
<< data (d->data.data (), d->data.size ()); |
312 |
root |
1.31 |
|
313 |
root |
1.32 |
send_packet (sl); |
314 |
root |
1.28 |
} |
315 |
|
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|
316 |
|
|
// send all faces of this object to the client |
317 |
|
|
// this uses more bandwidth initially, but makes |
318 |
|
|
// animations look much smoother, and every client |
319 |
|
|
// is supposed to do client-side caching anyways. |
320 |
|
|
void |
321 |
|
|
client::send_faces (object *ob) |
322 |
|
|
{ |
323 |
root |
1.50 |
send_face (ob->face, 10); |
324 |
root |
1.28 |
|
325 |
|
|
if (ob->animation_id) |
326 |
|
|
{ |
327 |
|
|
animation &anim = animations [ob->animation_id]; |
328 |
|
|
|
329 |
|
|
for (int i = 0; i < anim.num_animations; i++) |
330 |
root |
1.50 |
send_face (anim.faces [i], -10); |
331 |
root |
1.28 |
} |
332 |
|
|
} |
333 |
|
|
|
334 |
|
|
/** |
335 |
|
|
* Need to send an animation sequence to the client. |
336 |
|
|
* We will send appropriate face commands to the client if we haven't |
337 |
|
|
* sent them the face yet (this can become quite costly in terms of |
338 |
|
|
* how much we are sending - on the other hand, this should only happen |
339 |
|
|
* when the player logs in and picks stuff up. |
340 |
|
|
*/ |
341 |
|
|
void |
342 |
|
|
client::send_animation (short anim_num) |
343 |
|
|
{ |
344 |
|
|
/* 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 |
346 |
|
|
* range, it must be a valid animation. |
347 |
|
|
*/ |
348 |
root |
1.41 |
if (anim_num < 0 || anim_num >= animations.size ()) |
349 |
root |
1.28 |
{ |
350 |
|
|
LOG (llevError, "esrv_send_anim (%d) out of bounds??\n", anim_num); |
351 |
|
|
return; |
352 |
|
|
} |
353 |
|
|
|
354 |
|
|
packet sl ("anim"); |
355 |
|
|
|
356 |
|
|
sl << uint16 (anim_num) |
357 |
|
|
<< uint16 (0); /* flags - not used right now */ |
358 |
|
|
|
359 |
|
|
/* Build up the list of faces. Also, send any information (ie, the |
360 |
|
|
* the face itself) down to the client. |
361 |
|
|
*/ |
362 |
|
|
for (int i = 0; i < animations[anim_num].num_animations; i++) |
363 |
|
|
{ |
364 |
root |
1.50 |
send_face (animations[anim_num].faces[i], -20); |
365 |
root |
1.28 |
sl << uint16 (animations[anim_num].faces[i]); /* flags - not used right now */ |
366 |
elmex |
1.1 |
} |
367 |
root |
1.6 |
|
368 |
root |
1.28 |
send_packet (sl); |
369 |
|
|
|
370 |
|
|
anims_sent[anim_num] = 1; |
371 |
elmex |
1.1 |
} |
372 |
|
|
|
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 |
|
|
*/ |
378 |
root |
1.3 |
void |
379 |
root |
1.15 |
send_image_info (client *ns, char *params) |
380 |
elmex |
1.1 |
{ |
381 |
root |
1.8 |
packet sl; |
382 |
elmex |
1.1 |
|
383 |
root |
1.24 |
//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 |
root |
1.6 |
|
386 |
root |
1.24 |
sl << "0:base:standard:0:32x32:none:The old 32x32 faceset.\n"; |
387 |
elmex |
1.1 |
|
388 |
root |
1.11 |
ns->send_packet (sl); |
389 |
elmex |
1.1 |
} |
390 |
|
|
|
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 |
|
|
*/ |
400 |
root |
1.3 |
void |
401 |
root |
1.15 |
send_image_sums (client *ns, char *params) |
402 |
elmex |
1.1 |
{ |
403 |
root |
1.3 |
int start, stop; |
404 |
pippijn |
1.22 |
char *cp; |
405 |
root |
1.3 |
|
406 |
root |
1.8 |
packet sl; |
407 |
root |
1.3 |
|
408 |
|
|
start = atoi (params); |
409 |
|
|
for (cp = params; *cp != '\0'; cp++) |
410 |
|
|
if (*cp == ' ') |
411 |
|
|
break; |
412 |
|
|
|
413 |
|
|
stop = atoi (cp); |
414 |
root |
1.24 |
if (stop < start || *cp == '\0' || (stop - start) > 1000 || stop >= MAX_FACES) |
415 |
root |
1.3 |
{ |
416 |
root |
1.7 |
sl.printf ("replyinfo image_sums %d %d", start, stop); |
417 |
|
|
ns->send_packet (sl); |
418 |
|
|
sl.reset (); |
419 |
root |
1.3 |
return; |
420 |
|
|
} |
421 |
|
|
|
422 |
root |
1.6 |
sl.printf ("replyinfo image_sums %d %d ", start, stop); |
423 |
root |
1.3 |
|
424 |
root |
1.24 |
for (int i = start; i <= stop && i < faces.size (); i++) |
425 |
root |
1.53 |
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 |
root |
1.23 |
|
439 |
root |
1.53 |
print_facename (sl, *d); sl << uint8 (0); |
440 |
|
|
} |
441 |
root |
1.6 |
|
442 |
root |
1.3 |
/* 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 |
root |
1.23 |
//TODO: taken care of above, should simply abort or make sure the above code is correct |
448 |
root |
1.52 |
if (sl.length () > MAXSOCKBUF) |
449 |
root |
1.3 |
{ |
450 |
root |
1.9 |
LOG (llevError, "send_image_send: buffer overrun, %d > %d\n", sl.length (), MAXSOCKBUF); |
451 |
root |
1.3 |
abort (); |
452 |
elmex |
1.1 |
} |
453 |
root |
1.6 |
|
454 |
root |
1.11 |
ns->send_packet (sl); |
455 |
elmex |
1.1 |
} |
456 |
root |
1.6 |
|