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 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
5 | * Copyright (©) 2001,2007 Mark Wedel |
5 | * Copyright (©) 2001,2007 Mark Wedel |
6 | * Copyright (©) 1992,2007 Frank Tore Johansen |
6 | * Copyright (©) 1992,2007 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 |
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 3 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, |
… | |
… | |
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, see <http://www.gnu.org/licenses/>. |
19 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
20 | * |
20 | * |
21 | * The authors can be reached via e-mail to <crossfire@schmorp.de> |
21 | * The authors can be reached via e-mail to <support@deliantra.net> |
22 | */ |
22 | */ |
23 | |
23 | |
24 | /** \file |
24 | /** \file |
25 | * Image related communication |
25 | * Image related communication |
26 | * |
26 | * |
… | |
… | |
35 | #include <global.h> |
35 | #include <global.h> |
36 | #include <sproto.h> |
36 | #include <sproto.h> |
37 | |
37 | |
38 | #include "crc.h" |
38 | #include "crc.h" |
39 | |
39 | |
40 | #define MAX_FACE_SETS 20 /**< Maximum number of image sets the program will handle */ |
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41 | |
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42 | /** Information about one image */ |
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43 | typedef struct FaceInfo |
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44 | { |
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45 | uint8 *data; /**< image data */ |
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46 | uint16 datalen; /**< length of the xpm data */ |
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47 | uint32 checksum; /**< Checksum of face data */ |
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48 | } FaceInfo; |
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49 | |
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50 | /** Information about one face set */ |
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51 | typedef struct |
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52 | { |
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53 | char *prefix; /**< */ |
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54 | char *fullname; |
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55 | |
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56 | uint8 fallback; /**< faceset to use when an image is not found in this faceset */ |
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57 | char *size; |
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58 | char *extension; |
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59 | char *comment; |
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60 | |
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61 | FaceInfo *faces; /**< images in this faceset */ |
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62 | } FaceSets; |
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63 | |
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64 | static FaceSets facesets[MAX_FACE_SETS]; /**< All facesets */ |
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65 | |
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66 | /** |
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67 | * Checks specified faceset is valid |
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68 | * \param fsn faceset number |
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69 | */ |
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70 | int |
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71 | is_valid_faceset (int fsn) |
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72 | { |
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73 | if (fsn >= 0 && fsn < MAX_FACE_SETS && facesets[fsn].prefix) |
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74 | return TRUE; |
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75 | return FALSE; |
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76 | } |
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77 | |
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78 | /** |
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79 | * Frees all faceset information |
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80 | */ |
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81 | void |
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82 | free_socket_images (void) |
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83 | { |
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84 | int num, q; |
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85 | |
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86 | for (num = 0; num < MAX_FACE_SETS; num++) |
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87 | { |
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88 | if (facesets[num].prefix) |
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89 | { |
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90 | for (q = 0; q < faces.size (); q++) |
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91 | if (facesets[num].faces[q].data) |
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92 | free (facesets[num].faces[q].data); |
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93 | |
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94 | free (facesets[num].prefix); |
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95 | free (facesets[num].fullname); |
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96 | free (facesets[num].size); |
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97 | free (facesets[num].extension); |
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98 | free (facesets[num].comment); |
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99 | free (facesets[num].faces); |
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100 | } |
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101 | } |
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102 | } |
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103 | |
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104 | /** |
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105 | * This returns the set we will actually use when sending |
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106 | * a face. This is used because the image files may be sparse. |
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107 | * This function is recursive. imageno is the face number we are |
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108 | * trying to send |
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109 | * |
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110 | * If face is not found in specified faceset, tries with 'fallback' faceset. |
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111 | * |
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112 | * \param faceset faceset to check |
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113 | * \param imageno image number |
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114 | * |
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115 | */ |
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116 | static int |
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117 | get_face_fallback (int faceset, int imageno) |
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118 | { |
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119 | /* faceset 0 is supposed to have every image, so just return. Doing |
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120 | * so also prevents infinite loops in the case if it not having |
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121 | * the face, but in that case, we are likely to crash when we try |
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122 | * to access the data, but that is probably preferable to an infinite |
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123 | * loop. |
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124 | */ |
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125 | if (faceset == 0) |
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126 | return 0; |
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127 | |
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128 | if (!facesets[faceset].prefix) |
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129 | { |
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130 | LOG (llevError, "get_face_fallback called with unused set (%d)?\n", faceset); |
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131 | return 0; /* use default set */ |
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132 | } |
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133 | |
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134 | if (facesets[faceset].faces[imageno].data) |
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135 | return faceset; |
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136 | |
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137 | return get_face_fallback (facesets[faceset].fallback, imageno); |
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138 | } |
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139 | |
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140 | /** |
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141 | * Checks fallback are correctly defined. |
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142 | * This is a simple recursive function that makes sure the fallbacks |
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143 | * are all proper (eg, the fall back to defined sets, and also |
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144 | * eventually fall back to 0). At the top level, togo is set to MAX_FACE_SETS, |
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145 | * if togo gets to zero, it means we have a loop. |
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146 | * This is only run when we first load the facesets. |
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147 | */ |
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148 | static void |
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149 | check_faceset_fallback (int faceset, int togo) |
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150 | { |
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151 | int fallback = facesets[faceset].fallback; |
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152 | |
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153 | /* proper case - falls back to base set */ |
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154 | if (fallback == 0) |
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155 | return; |
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156 | |
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157 | if (!facesets[fallback].prefix) |
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158 | { |
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159 | LOG (llevError, "Face set %d falls to non set faceset %d\n", faceset, fallback); |
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160 | abort (); |
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161 | } |
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162 | |
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163 | togo--; |
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164 | if (togo == 0) |
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165 | { |
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166 | LOG (llevError, "Infinite loop found in facesets. aborting.\n"); |
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167 | abort (); |
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168 | } |
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169 | |
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170 | check_faceset_fallback (fallback, togo); |
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171 | } |
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172 | |
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173 | #define MAX_IMAGE_SIZE 10000 |
40 | #define MAX_IMAGE_SIZE 10000 |
174 | |
41 | |
175 | /** |
42 | /** |
176 | * Client tells us what type of faces it wants. Also sets |
43 | * Client tells us what type of faces it wants. Also sets |
177 | * the caching attribute. |
44 | * the caching attribute. |
… | |
… | |
199 | AskFaceCmd (char *buf, int len, client *ns) |
66 | AskFaceCmd (char *buf, int len, client *ns) |
200 | { |
67 | { |
201 | int idx = 0, pri = 0; |
68 | int idx = 0, pri = 0; |
202 | |
69 | |
203 | sscanf (buf, "%d %d", &idx, &pri); |
70 | sscanf (buf, "%d %d", &idx, &pri); |
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71 | |
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72 | //TODO: somehow fetch default priority from send_fx here |
204 | |
73 | |
205 | const facedata *d = face_data (idx, ns->faceset); |
74 | const facedata *d = face_data (idx, ns->faceset); |
206 | |
75 | |
207 | if (!d) |
76 | if (!d) |
208 | return; // doh |
77 | return; // doh |
… | |
… | |
253 | * to smooth a picture number given as argument. |
122 | * to smooth a picture number given as argument. |
254 | */ |
123 | */ |
255 | void |
124 | void |
256 | AskSmooth (char *buf, int len, client *ns) |
125 | AskSmooth (char *buf, int len, client *ns) |
257 | { |
126 | { |
258 | ns->send_face (atoi (buf)); |
127 | ns->send_face (atoi (buf), -100); |
259 | ns->flush_fx (); |
128 | ns->flush_fx (); |
260 | } |
129 | } |
261 | |
130 | |
262 | // how lame |
131 | // how lame |
263 | static void print_facename (packet &sl, const facedata &d) |
132 | static void print_facename (packet &sl, const facedata &d) |
… | |
… | |
292 | * this is needed for the askface, in which we really do want to send the |
161 | * this is needed for the askface, in which we really do want to send the |
293 | * face (and askface is the only place that should be setting it). Otherwise, |
162 | * face (and askface is the only place that should be setting it). Otherwise, |
294 | * we look at the facecache, and if set, send the image name. |
163 | * we look at the facecache, and if set, send the image name. |
295 | */ |
164 | */ |
296 | void |
165 | void |
297 | client::send_face (faceidx facenum) |
166 | client::send_face (faceidx facenum, int pri) |
298 | { |
167 | { |
299 | // never send face 0. ever. it does not exist. |
168 | // never send face 0. ever. it does not exist. |
300 | if (!facenum) |
169 | if (!facenum) |
301 | return; |
170 | return; |
302 | |
171 | |
303 | const facedata *d = face_data (facenum, faceset); |
172 | faceinfo *f = face_info (facenum); |
304 | |
173 | |
305 | if (!d) |
174 | if (!f) |
306 | { |
175 | { |
307 | LOG (llevError, "client::send_face (%d) out of bounds??\n", facenum); |
176 | LOG (llevError | logBacktrace, "client::send_face (%d) out of bounds??\n", facenum); |
308 | return; |
177 | return; |
309 | } |
178 | } |
310 | |
179 | |
311 | if (!must_send_face (facenum)) |
180 | // refuse to send non-image faces |
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181 | if (!fx_want [f->type]) |
312 | return; |
182 | return; |
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183 | |
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184 | if (faces_sent [facenum]) |
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185 | return; |
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186 | |
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187 | faces_sent[facenum] = true; |
313 | |
188 | |
314 | // if for some reason we let a client without face caching connect, |
189 | // if for some reason we let a client without face caching connect, |
315 | // we better support that decision here and implement it. |
190 | // we better support that decision here and implement it. |
316 | if (!facecache) |
191 | if (!facecache) |
317 | return send_image (facenum); |
192 | return send_image (facenum); |
… | |
… | |
319 | if (fxix) |
194 | if (fxix) |
320 | { |
195 | { |
321 | fxface.push_back (facenum); |
196 | fxface.push_back (facenum); |
322 | return; |
197 | return; |
323 | } |
198 | } |
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199 | |
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200 | const facedata *d = f->data (faceset); |
324 | |
201 | |
325 | packet sl; |
202 | packet sl; |
326 | |
203 | |
327 | if (force_face0) |
204 | if (force_face0) |
328 | sl << "face " << uint16 (facenum); |
205 | sl << "face " << uint16 (facenum); |
… | |
… | |
335 | print_facename (sl, *d); |
212 | print_facename (sl, *d); |
336 | send_packet (sl); |
213 | send_packet (sl); |
337 | |
214 | |
338 | if (EMI_smooth) |
215 | if (EMI_smooth) |
339 | { |
216 | { |
340 | faceinfo *f = face_info (facenum); |
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341 | |
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342 | if (f->smooth) |
217 | if (f->smooth) |
343 | { |
218 | { |
344 | send_face (f->smooth); |
219 | send_face (f->smooth); |
345 | |
220 | |
346 | packet sl ("smooth"); |
221 | packet sl ("smooth"); |
… | |
… | |
357 | { |
232 | { |
358 | while (!fxface.empty ()) |
233 | while (!fxface.empty ()) |
359 | { |
234 | { |
360 | packet fx ("fx"); |
235 | packet fx ("fx"); |
361 | packet sx ("sx"); |
236 | packet sx ("sx"); |
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237 | int type = 0; |
362 | |
238 | |
363 | do |
239 | do |
364 | { |
240 | { |
365 | faceidx facenum = fxface.back (); fxface.pop_back (); |
241 | faceidx facenum = fxface.back (); fxface.pop_back (); |
366 | |
242 | |
367 | const facedata *d = face_data (facenum, faceset); |
243 | if (const faceinfo *f = face_info (facenum)) |
368 | |
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369 | if (d) |
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370 | { |
244 | { |
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245 | if (f->type != type) |
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246 | { |
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247 | type = f->type; |
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248 | |
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249 | fx << ber32 (0) |
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250 | << uint8 (1) << uint8 (type); |
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251 | } |
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252 | |
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253 | const facedata *d = f->data (faceset); |
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254 | |
371 | fx << ber32 (facenum) |
255 | fx << ber32 (facenum) |
372 | << data8 (d->chksum, CHKSUM_SIZE); |
256 | << data8 (d->chksum, CHKSUM_SIZE); |
373 | |
257 | |
374 | if (smoothing) |
258 | if (smoothing) |
375 | { |
259 | { |
376 | faceinfo *f = face_info (facenum); |
260 | faceinfo *f = face_info (facenum); |
377 | |
261 | |
378 | if (f->smooth) |
262 | if (f->smooth) |
379 | { |
263 | { |
380 | send_face (f->smooth); |
264 | send_face (f->smooth, -110); |
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265 | |
381 | sx << ber32 (facenum) |
266 | sx << ber32 (facenum) |
382 | << ber32 (f->smooth) |
267 | << ber32 (f->smooth) |
383 | << ber32 (f->smoothlevel); |
268 | << ber32 (f->smoothlevel); |
384 | } |
269 | } |
385 | } |
270 | } |
386 | } |
271 | } |
387 | } |
272 | } |
388 | while (!fxface.empty () |
273 | while (!fxface.empty () |
389 | && fx.room () > ber32::size + CHKSUM_SIZE + 1 |
274 | && fx.room () > ber32::size + CHKSUM_SIZE + 1 + 3 /* type switch */ |
390 | && sx.room () > ber32::size * 3); |
275 | && sx.room () > ber32::size * 3); |
391 | |
276 | |
392 | send_packet (fx); |
277 | send_packet (fx); |
393 | if (sx.length () > 3) send_packet (sx); |
278 | if (sx.length () > 3) send_packet (sx); |
394 | } |
279 | } |
… | |
… | |
409 | { |
294 | { |
410 | LOG (llevError, "client::send_image (%d) out of bounds??\n", facenum); |
295 | LOG (llevError, "client::send_image (%d) out of bounds??\n", facenum); |
411 | return; |
296 | return; |
412 | } |
297 | } |
413 | |
298 | |
414 | //TODO: check type here? |
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415 | |
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416 | if (force_image_newmap) |
299 | if (force_image_newmap) |
417 | force_newmap = true; |
300 | force_newmap = true; |
418 | |
301 | |
419 | packet sl; |
302 | packet sl; |
420 | |
303 | |
… | |
… | |
435 | // animations look much smoother, and every client |
318 | // animations look much smoother, and every client |
436 | // is supposed to do client-side caching anyways. |
319 | // is supposed to do client-side caching anyways. |
437 | void |
320 | void |
438 | client::send_faces (object *ob) |
321 | client::send_faces (object *ob) |
439 | { |
322 | { |
440 | send_face (ob->face); |
323 | send_face (ob->face, 10); |
441 | |
324 | |
442 | if (ob->animation_id) |
325 | if (ob->animation_id) |
443 | { |
326 | { |
444 | animation &anim = animations [ob->animation_id]; |
327 | animation &anim = animations [ob->animation_id]; |
445 | |
328 | |
446 | for (int i = 0; i < anim.num_animations; i++) |
329 | for (int i = 0; i < anim.num_animations; i++) |
447 | send_face (anim.faces [i]); |
330 | send_face (anim.faces [i], -10); |
448 | } |
331 | } |
449 | } |
332 | } |
450 | |
333 | |
451 | /** |
334 | /** |
452 | * Need to send an animation sequence to the client. |
335 | * Need to send an animation sequence to the client. |
… | |
… | |
476 | /* Build up the list of faces. Also, send any information (ie, the |
359 | /* Build up the list of faces. Also, send any information (ie, the |
477 | * the face itself) down to the client. |
360 | * the face itself) down to the client. |
478 | */ |
361 | */ |
479 | for (int i = 0; i < animations[anim_num].num_animations; i++) |
362 | for (int i = 0; i < animations[anim_num].num_animations; i++) |
480 | { |
363 | { |
481 | send_face (animations[anim_num].faces[i]); |
364 | send_face (animations[anim_num].faces[i], -20); |
482 | sl << uint16 (animations[anim_num].faces[i]); /* flags - not used right now */ |
365 | sl << uint16 (animations[anim_num].faces[i]); /* flags - not used right now */ |
483 | } |
366 | } |
484 | |
367 | |
485 | send_packet (sl); |
368 | send_packet (sl); |
486 | |
369 | |
… | |
… | |
537 | } |
420 | } |
538 | |
421 | |
539 | sl.printf ("replyinfo image_sums %d %d ", start, stop); |
422 | sl.printf ("replyinfo image_sums %d %d ", start, stop); |
540 | |
423 | |
541 | for (int i = start; i <= stop && i < faces.size (); i++) |
424 | for (int i = start; i <= stop && i < faces.size (); i++) |
542 | { |
425 | if (const faceinfo *f = face_info (i)) |
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426 | if (ns->fx_want [f->type]) |
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427 | { |
543 | ns->faces_sent[i] = true; |
428 | ns->faces_sent[i] = true; |
544 | |
429 | |
545 | const facedata *d = face_data (i, ns->faceset); |
430 | const facedata *d = f->data (ns->faceset); |
546 | |
431 | |
547 | if (sl.room () < 2 + 4 + 1 + d->data.size () + 1) |
432 | if (sl.room () < 2 + 4 + 1 + d->data.size () + 1) |
548 | break; |
433 | break; |
549 | |
434 | |
550 | sl << uint16 (i) |
435 | sl << uint16 (i) |
551 | << uint32 (0) // checksum |
436 | << uint32 (0) // checksum |
552 | << uint8 (ns->faceset); |
437 | << uint8 (ns->faceset); |
553 | |
438 | |
554 | print_facename (sl, *d); sl << uint8 (0); |
439 | print_facename (sl, *d); sl << uint8 (0); |
555 | } |
440 | } |
556 | |
441 | |
557 | /* It would make more sense to catch this pre-emptively in the code above. |
442 | /* It would make more sense to catch this pre-emptively in the code above. |
558 | * however, if this really happens, we probably just want to cut down the |
443 | * however, if this really happens, we probably just want to cut down the |
559 | * size to less than 1000, since that is what we claim the protocol would |
444 | * size to less than 1000, since that is what we claim the protocol would |
560 | * support. |
445 | * support. |
561 | */ |
446 | */ |
562 | //TODO: taken care of above, should simply abort or make sure the above code is correct |
447 | //TODO: taken care of above, should simply abort or make sure the above code is correct |
563 | if (sl.length () >= MAXSOCKBUF) |
448 | if (sl.length () > MAXSOCKBUF) |
564 | { |
449 | { |
565 | LOG (llevError, "send_image_send: buffer overrun, %d > %d\n", sl.length (), MAXSOCKBUF); |
450 | LOG (llevError, "send_image_send: buffer overrun, %d > %d\n", sl.length (), MAXSOCKBUF); |
566 | abort (); |
451 | abort (); |
567 | } |
452 | } |
568 | |
453 | |