| … | |
… | |
| 207 | } |
207 | } |
| 208 | |
208 | |
| 209 | // how lame |
209 | // how lame |
| 210 | static void print_facename (packet &sl, const facedata &d) |
210 | static void print_facename (packet &sl, const facedata &d) |
| 211 | { |
211 | { |
| 212 | sl.printf ("%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x" |
212 | for (int i = 0; i < CHKSUM_SIZE; ++i) |
| 213 | "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x", |
213 | sl.printf ("%02x", d.chksum [i]); |
| 214 | d.chksum [ 0], d.chksum [ 1], d.chksum [ 2], d.chksum [ 3], |
214 | } |
| 215 | d.chksum [ 4], d.chksum [ 5], d.chksum [ 6], d.chksum [ 7], |
215 | |
| 216 | d.chksum [ 8], d.chksum [ 9], d.chksum [10], d.chksum [11], |
216 | // gcfclient uses the server-provided checksum for comparison, |
| 217 | d.chksum [12], d.chksum [13], d.chksum [14], d.chksum [15]); |
217 | // but always wrotes a broken checksum to its cache file, so we |
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218 | // have to provide gcfclient with a useless checksum just to |
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219 | // have to cache the image despite its bugs. |
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220 | static uint32 gcfclient_checksum (const facedata *d) |
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221 | { |
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222 | uint32 csum = 0; |
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223 | |
|
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224 | for (std::string::const_iterator i = d->data.begin (); |
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225 | i != d->data.end (); |
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226 | ++i) |
|
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227 | { |
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228 | csum = rotate_right (csum); |
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229 | csum += *(uint8 *)&*i; |
|
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230 | } |
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231 | |
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232 | return csum; |
| 218 | } |
233 | } |
| 219 | |
234 | |
| 220 | /** |
235 | /** |
| 221 | * Sends a face to a client if they are in pixmap mode |
236 | * Sends a face to a client if they are in pixmap mode |
| 222 | * nothing gets sent in bitmap mode. |
237 | * nothing gets sent in bitmap mode. |
| … | |
… | |
| 238 | |
253 | |
| 239 | packet sl; |
254 | packet sl; |
| 240 | |
255 | |
| 241 | if (ns->facecache && !nocache) |
256 | if (ns->facecache && !nocache) |
| 242 | { |
257 | { |
| 243 | sl << (ns->image2 ? "face2 " : "face1 ") |
258 | if (ns->force_face0) |
| 244 | << uint16 (face_num); |
259 | sl << "face " << uint16 (face_num); |
| 245 | |
|
|
| 246 | if (ns->image2) |
260 | else if (ns->image2) |
| 247 | sl << uint8 (0); |
261 | sl << "face2 " << uint16 (face_num) << uint8 (0) << uint32 (ns->force_bad_checksum ? gcfclient_checksum (d) : 0); |
| 248 | |
262 | else |
| 249 | sl << uint32 (0); |
263 | sl << "face1 " << uint16 (face_num) << uint32 (ns->force_bad_checksum ? gcfclient_checksum (d) : 0); |
| 250 | |
264 | |
| 251 | // how lame |
265 | // how lame |
| 252 | print_facename (sl, *d); |
266 | print_facename (sl, *d); |
| 253 | |
267 | |
| 254 | ns->send_packet (sl); |
268 | ns->send_packet (sl); |
