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 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 |
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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 | /** \file |
25 | * Image related communication |
26 | * Image related communication |
26 | * |
27 | * |
… | |
… | |
35 | #include <global.h> |
36 | #include <global.h> |
36 | #include <sproto.h> |
37 | #include <sproto.h> |
37 | |
38 | |
38 | #include "crc.h" |
39 | #include "crc.h" |
39 | |
40 | |
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 |
41 | #define MAX_IMAGE_SIZE 10000 |
174 | |
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175 | /** |
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176 | * Client tells us what type of faces it wants. Also sets |
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177 | * the caching attribute. |
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178 | * |
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179 | */ |
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180 | void |
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181 | SetFaceMode (char *buf, int len, client *ns) |
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182 | { |
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183 | int mask = (atoi (buf) & CF_FACE_CACHE), mode = (atoi (buf) & ~CF_FACE_CACHE); |
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184 | |
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185 | if (mode == CF_FACE_NONE) |
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186 | ns->facecache = 1; |
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187 | else if (mode != CF_FACE_PNG) |
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188 | ns->send_packet_printf ("drawinfo %d %s", NDI_RED, "Warning - send unsupported face mode. Will use Png"); |
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189 | |
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190 | if (mask) |
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191 | ns->facecache = 1; |
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192 | } |
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193 | |
42 | |
194 | /** |
43 | /** |
195 | * client requested an image. send it rate-limited |
44 | * client requested an image. send it rate-limited |
196 | * before flushing. |
45 | * before flushing. |
197 | */ |
46 | */ |
… | |
… | |
200 | { |
49 | { |
201 | int idx = 0, pri = 0; |
50 | int idx = 0, pri = 0; |
202 | |
51 | |
203 | sscanf (buf, "%d %d", &idx, &pri); |
52 | sscanf (buf, "%d %d", &idx, &pri); |
204 | |
53 | |
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54 | //TODO: somehow fetch default priority from send_fx here |
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55 | |
205 | const facedata *d = face_data (idx, ns->faceset); |
56 | const facedata *d = face_data (idx, ns->faceset); |
206 | |
57 | |
207 | if (!d) |
58 | if (!d) |
208 | return; // doh |
59 | return; // doh |
209 | |
60 | |
… | |
… | |
213 | ix.idx = idx; |
64 | ix.idx = idx; |
214 | ix.ofs = d->data.size (); |
65 | ix.ofs = d->data.size (); |
215 | |
66 | |
216 | auto (pos, ns->ixface.end ()); |
67 | auto (pos, ns->ixface.end ()); |
217 | |
68 | |
218 | if (ns->fxix < 2) |
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219 | { |
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220 | // gcfclient does not support prioritising, older cfplus versions |
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221 | // do not support interleaved transfers. |
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222 | if (!ns->ixface.empty ()) |
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223 | pos = ns->ixface.end () - 1; |
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224 | } |
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225 | else |
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226 | { |
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227 | // the by far most common case will be to insert |
69 | // the by far most common case will be to insert |
228 | // near the end, so little looping. |
70 | // near the end, so little looping. |
229 | while (pos != ns->ixface.begin ()) |
71 | while (pos != ns->ixface.begin ()) |
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72 | { |
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73 | --pos; |
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74 | |
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75 | // sort within 2k bins, to slightly prefer smaller images |
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76 | if (pri > pos->pri || (pri == pos->pri && (ix.ofs >> 11) <= (pos->ofs >> 11))) |
230 | { |
77 | { |
231 | --pos; |
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232 | |
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233 | // sort within 2k bins, to slightly prefer smaller images |
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234 | if (pri > pos->pri || (pri == pos->pri && (ix.ofs >> 11) <= (pos->ofs >> 11))) |
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235 | { |
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236 | ++pos; |
78 | ++pos; |
237 | break; |
79 | break; |
238 | } |
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239 | } |
80 | } |
240 | } |
81 | } |
241 | |
82 | |
242 | ns->ixface.insert (pos, ix); |
83 | ns->ixface.insert (pos, ix); |
243 | |
84 | |
244 | #if 0 |
85 | #if 0 |
245 | for (auto (i, ns->ixface.begin ()); i != ns->ixface.end (); ++i) |
86 | for (auto (i, ns->ixface.begin ()); i != ns->ixface.end (); ++i) |
246 | fprintf (stderr, "<%d,%d> ", i->pri, i->ofs); |
87 | fprintf (stderr, "<%d,%d> ", i->pri, i->ofs); |
247 | fprintf (stderr, "\n"); |
88 | fprintf (stderr, "\n"); |
248 | #endif |
89 | #endif |
249 | } |
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250 | |
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251 | /** |
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252 | * Tells client the picture it has to use |
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253 | * to smooth a picture number given as argument. |
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254 | */ |
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255 | void |
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256 | AskSmooth (char *buf, int len, client *ns) |
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257 | { |
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258 | ns->send_face (atoi (buf)); |
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259 | ns->flush_fx (); |
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260 | } |
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261 | |
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262 | // how lame |
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263 | static void print_facename (packet &sl, const facedata &d) |
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264 | { |
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265 | for (int i = 0; i < CHKSUM_SIZE; ++i) |
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266 | sl.printf ("%02x", d.chksum [i]); |
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267 | } |
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268 | |
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269 | // gcfclient uses the server-provided checksum for comparison, but always |
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270 | // writes a broken checksum to its cache file, so we have to provide |
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271 | // gcfclient with the same broken (and useless) checksum just to have it |
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272 | // cache the image despite its bugs. |
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273 | static uint32 gcfclient_checksum (const facedata *d) |
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274 | { |
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275 | uint32 csum = 0; |
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276 | |
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277 | for (std::string::const_iterator i = d->data.begin (); |
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278 | i != d->data.end (); |
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279 | ++i) |
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280 | { |
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281 | csum = rotate_right (csum); |
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282 | csum += *(uint8 *)&*i; |
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283 | } |
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284 | |
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285 | return csum; |
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286 | } |
90 | } |
287 | |
91 | |
288 | /** |
92 | /** |
289 | * Sends a face to a client if they are in pixmap mode |
93 | * Sends a face to a client if they are in pixmap mode |
290 | * nothing gets sent in bitmap mode. |
94 | * nothing gets sent in bitmap mode. |
… | |
… | |
292 | * this is needed for the askface, in which we really do want to send the |
96 | * 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, |
97 | * 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. |
98 | * we look at the facecache, and if set, send the image name. |
295 | */ |
99 | */ |
296 | void |
100 | void |
297 | client::send_face (faceidx facenum) |
101 | client::send_face (faceidx facenum, int pri) |
298 | { |
102 | { |
299 | // never send face 0. ever. it does not exist. |
103 | // never send face 0. ever. it does not exist. |
300 | if (!facenum) |
104 | if (!facenum) |
301 | return; |
105 | return; |
302 | |
106 | |
303 | const facedata *d = face_data (facenum, faceset); |
107 | faceinfo *f = face_info (facenum); |
304 | |
108 | |
305 | if (!d) |
109 | if (!f) |
306 | { |
110 | { |
307 | LOG (llevError, "client::send_face (%d) out of bounds??\n", facenum); |
111 | LOG (llevError | logBacktrace, "client::send_face (%d) out of bounds??\n", facenum); |
308 | return; |
112 | return; |
309 | } |
113 | } |
310 | |
114 | |
311 | // refuse tos end non-image faces |
115 | // refuse to send non-image faces |
312 | if (d->type) |
116 | if (!fx_want [f->type]) |
313 | return; |
117 | return; |
314 | |
118 | |
315 | if (!must_send_face (facenum)) |
119 | if (faces_sent [facenum]) |
316 | return; |
120 | return; |
317 | |
121 | |
318 | // if for some reason we let a client without face caching connect, |
122 | faces_sent[facenum] = true; |
319 | // we better support that decision here and implement it. |
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320 | if (!facecache) |
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321 | return send_image (facenum); |
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322 | |
123 | |
323 | if (fxix) |
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324 | { |
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325 | fxface.push_back (facenum); |
124 | fxface.push_back (facenum); |
326 | return; |
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327 | } |
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328 | |
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329 | packet sl; |
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330 | |
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331 | if (force_face0) |
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332 | sl << "face " << uint16 (facenum); |
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333 | else if (image2) |
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334 | sl << "face2 " << uint16 (facenum) << uint8 (0) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0); |
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335 | else |
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336 | sl << "face1 " << uint16 (facenum) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0); |
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337 | |
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338 | // how lame |
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339 | print_facename (sl, *d); |
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340 | send_packet (sl); |
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341 | |
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342 | if (EMI_smooth) |
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343 | { |
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344 | faceinfo *f = face_info (facenum); |
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345 | |
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346 | if (f->smooth) |
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347 | { |
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348 | send_face (f->smooth); |
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349 | |
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350 | packet sl ("smooth"); |
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351 | |
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352 | sl << uint16 (facenum) |
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353 | << uint16 (f->smooth); |
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354 | |
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355 | send_packet (sl); |
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356 | } |
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357 | } |
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358 | } |
125 | } |
359 | |
126 | |
360 | void client::flush_fx () |
127 | void client::flush_fx () |
361 | { |
128 | { |
362 | while (!fxface.empty ()) |
129 | while (!fxface.empty ()) |
363 | { |
130 | { |
364 | packet fx ("fx"); |
131 | packet fx ("fx"); |
365 | packet sx ("sx"); |
132 | packet sx ("sx"); |
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133 | int type = 0; |
366 | |
134 | |
367 | do |
135 | do |
368 | { |
136 | { |
369 | faceidx facenum = fxface.back (); fxface.pop_back (); |
137 | faceidx facenum = fxface.back (); fxface.pop_back (); |
370 | |
138 | |
371 | const facedata *d = face_data (facenum, faceset); |
139 | if (const faceinfo *f = face_info (facenum)) |
372 | |
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373 | if (d) |
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374 | { |
140 | { |
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141 | if (f->type != type) |
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142 | { |
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143 | type = f->type; |
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144 | |
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145 | fx << ber32 (0) |
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146 | << uint8 (1) << uint8 (type); |
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147 | } |
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148 | |
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149 | const facedata *d = f->data (faceset); |
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150 | |
375 | fx << ber32 (facenum) |
151 | fx << ber32 (facenum) |
376 | << data8 (d->chksum, CHKSUM_SIZE); |
152 | << data8 (d->chksum, CHKSUM_SIZE); |
377 | |
153 | |
378 | if (smoothing) |
154 | if (smoothing) |
379 | { |
155 | { |
380 | faceinfo *f = face_info (facenum); |
156 | faceinfo *f = face_info (facenum); |
381 | |
157 | |
382 | if (f->smooth) |
158 | if (f->smooth) |
383 | { |
159 | { |
384 | send_face (f->smooth); |
160 | send_face (f->smooth, -110); |
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161 | |
385 | sx << ber32 (facenum) |
162 | sx << ber32 (facenum) |
386 | << ber32 (f->smooth) |
163 | << ber32 (f->smooth) |
387 | << ber32 (f->smoothlevel); |
164 | << ber32 (f->smoothlevel); |
388 | } |
165 | } |
389 | } |
166 | } |
390 | } |
167 | } |
391 | } |
168 | } |
392 | while (!fxface.empty () |
169 | while (!fxface.empty () |
393 | && fx.room () > ber32::size + CHKSUM_SIZE + 1 |
170 | && fx.room () > ber32::size + CHKSUM_SIZE + 1 + 3 /* type switch */ |
394 | && sx.room () > ber32::size * 3); |
171 | && sx.room () > ber32::size * 3); |
395 | |
172 | |
396 | send_packet (fx); |
173 | send_packet (fx); |
397 | if (sx.length () > 3) send_packet (sx); |
174 | if (sx.length () > 3) send_packet (sx); |
398 | } |
175 | } |
399 | } |
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400 | |
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401 | void |
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402 | client::send_image (faceidx facenum) |
|
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403 | { |
|
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404 | // never send face 0. ever. it does not exist. |
|
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405 | if (!facenum) |
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406 | return; |
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407 | |
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408 | const facedata *d = face_data (facenum, faceset); |
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409 | |
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410 | faces_sent[facenum] = true; |
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411 | |
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412 | if (!d) |
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413 | { |
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414 | LOG (llevError, "client::send_image (%d) out of bounds??\n", facenum); |
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415 | return; |
|
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416 | } |
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417 | |
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418 | //TODO: check type here? |
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419 | |
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420 | if (force_image_newmap) |
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421 | force_newmap = true; |
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422 | |
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423 | packet sl; |
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424 | |
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425 | sl << (image2 ? "image2 " : "image ") |
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426 | << uint32 (facenum); |
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427 | |
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428 | if (image2) |
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429 | sl << uint8 (0); |
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430 | |
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431 | sl << uint32 (d->data.size ()) |
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432 | << data (d->data.data (), d->data.size ()); |
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433 | |
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434 | send_packet (sl); |
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435 | } |
176 | } |
436 | |
177 | |
437 | // send all faces of this object to the client |
178 | // send all faces of this object to the client |
438 | // this uses more bandwidth initially, but makes |
179 | // this uses more bandwidth initially, but makes |
439 | // animations look much smoother, and every client |
180 | // animations look much smoother, and every client |
440 | // is supposed to do client-side caching anyways. |
181 | // is supposed to do client-side caching anyways. |
441 | void |
182 | void |
442 | client::send_faces (object *ob) |
183 | client::send_faces (object *ob) |
443 | { |
184 | { |
444 | send_face (ob->face); |
185 | send_face (ob->face, 10); |
445 | |
186 | |
446 | if (ob->animation_id) |
187 | if (ob->animation_id) |
447 | { |
188 | { |
448 | animation &anim = animations [ob->animation_id]; |
189 | const animation &anim = ob->anim (); |
449 | |
190 | |
450 | for (int i = 0; i < anim.num_animations; i++) |
191 | for (int i = 0; i < anim.num_animations; i++) |
451 | send_face (anim.faces [i]); |
192 | send_face (anim.faces [i], -10); |
452 | } |
193 | } |
453 | } |
194 | } |
454 | |
195 | |
455 | /** |
196 | /** |
456 | * Need to send an animation sequence to the client. |
197 | * Need to send an animation sequence to the client. |
… | |
… | |
461 | */ |
202 | */ |
462 | void |
203 | void |
463 | client::send_animation (short anim_num) |
204 | client::send_animation (short anim_num) |
464 | { |
205 | { |
465 | /* Do some checking on the anim_num we got. Note that the animations |
206 | /* Do some checking on the anim_num we got. Note that the animations |
466 | * are added in contigous order, so if the number is in the valid |
207 | * are added in contiguous order, so if the number is in the valid |
467 | * range, it must be a valid animation. |
208 | * range, it must be a valid animation. |
468 | */ |
209 | */ |
469 | if (anim_num < 0 || anim_num >= animations.size ()) |
210 | if (anim_num < 0 || anim_num >= animations.size ()) |
470 | { |
211 | { |
471 | LOG (llevError, "esrv_send_anim (%d) out of bounds??\n", anim_num); |
212 | LOG (llevError, "esrv_send_anim (%d) out of bounds??\n", anim_num); |
… | |
… | |
480 | /* Build up the list of faces. Also, send any information (ie, the |
221 | /* Build up the list of faces. Also, send any information (ie, the |
481 | * the face itself) down to the client. |
222 | * the face itself) down to the client. |
482 | */ |
223 | */ |
483 | for (int i = 0; i < animations[anim_num].num_animations; i++) |
224 | for (int i = 0; i < animations[anim_num].num_animations; i++) |
484 | { |
225 | { |
485 | send_face (animations[anim_num].faces[i]); |
226 | send_face (animations[anim_num].faces[i], -20); |
486 | sl << uint16 (animations[anim_num].faces[i]); /* flags - not used right now */ |
227 | sl << uint16 (animations[anim_num].faces[i]); |
487 | } |
228 | } |
488 | |
229 | |
489 | send_packet (sl); |
230 | send_packet (sl); |
490 | |
231 | |
491 | anims_sent[anim_num] = 1; |
232 | anims_sent[anim_num] = 1; |
492 | } |
233 | } |
493 | |
234 | |
494 | /** |
|
|
495 | * Sends the number of images, checksum of the face file, |
|
|
496 | * and the image_info file information. See the doc/Developers/protocol |
|
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497 | * if you want further detail. |
|
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498 | */ |
|
|
499 | void |
|
|
500 | send_image_info (client *ns, char *params) |
|
|
501 | { |
|
|
502 | packet sl; |
|
|
503 | |
|
|
504 | //TODO: second parameter is a checksum, but it makes no sense in this current framework |
|
|
505 | sl.printf ("replyinfo image_info\n%d\n%u\n", MAX_FACES, 0); |
|
|
506 | |
|
|
507 | sl << "0:base:standard:0:32x32:none:The old 32x32 faceset.\n"; |
|
|
508 | |
|
|
509 | ns->send_packet (sl); |
|
|
510 | } |
|
|
511 | |
|
|
512 | /** |
|
|
513 | * Sends requested face information. |
|
|
514 | * \param ns socket to send to |
|
|
515 | * \param params contains first and last index of face |
|
|
516 | * |
|
|
517 | * For each image in [start..stop] sends |
|
|
518 | * - checksum |
|
|
519 | * - name |
|
|
520 | */ |
|
|
521 | void |
|
|
522 | send_image_sums (client *ns, char *params) |
|
|
523 | { |
|
|
524 | int start, stop; |
|
|
525 | char *cp; |
|
|
526 | |
|
|
527 | packet sl; |
|
|
528 | |
|
|
529 | start = atoi (params); |
|
|
530 | for (cp = params; *cp != '\0'; cp++) |
|
|
531 | if (*cp == ' ') |
|
|
532 | break; |
|
|
533 | |
|
|
534 | stop = atoi (cp); |
|
|
535 | if (stop < start || *cp == '\0' || (stop - start) > 1000 || stop >= MAX_FACES) |
|
|
536 | { |
|
|
537 | sl.printf ("replyinfo image_sums %d %d", start, stop); |
|
|
538 | ns->send_packet (sl); |
|
|
539 | sl.reset (); |
|
|
540 | return; |
|
|
541 | } |
|
|
542 | |
|
|
543 | sl.printf ("replyinfo image_sums %d %d ", start, stop); |
|
|
544 | |
|
|
545 | for (int i = start; i <= stop && i < faces.size (); i++) |
|
|
546 | { |
|
|
547 | ns->faces_sent[i] = true; |
|
|
548 | |
|
|
549 | const facedata *d = face_data (i, ns->faceset); |
|
|
550 | |
|
|
551 | if (sl.room () < 2 + 4 + 1 + d->data.size () + 1) |
|
|
552 | break; |
|
|
553 | |
|
|
554 | sl << uint16 (i) |
|
|
555 | << uint32 (0) // checksum |
|
|
556 | << uint8 (ns->faceset); |
|
|
557 | |
|
|
558 | print_facename (sl, *d); sl << uint8 (0); |
|
|
559 | } |
|
|
560 | |
|
|
561 | /* It would make more sense to catch this pre-emptively in the code above. |
|
|
562 | * however, if this really happens, we probably just want to cut down the |
|
|
563 | * size to less than 1000, since that is what we claim the protocol would |
|
|
564 | * support. |
|
|
565 | */ |
|
|
566 | //TODO: taken care of above, should simply abort or make sure the above code is correct |
|
|
567 | if (sl.length () >= MAXSOCKBUF) |
|
|
568 | { |
|
|
569 | LOG (llevError, "send_image_send: buffer overrun, %d > %d\n", sl.length (), MAXSOCKBUF); |
|
|
570 | abort (); |
|
|
571 | } |
|
|
572 | |
|
|
573 | ns->send_packet (sl); |
|
|
574 | } |
|
|
575 | |
|
|