1 | /* |
1 | /* |
2 | * This file is part of Crossfire TRT, the Roguelike Realtime MORPG. |
2 | * This file is part of Deliantra, the Roguelike Realtime MMORPG. |
3 | * |
3 | * |
4 | * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team |
4 | * Copyright (©) 2005,2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
5 | * Copyright (©) 2001,2007 Mark Wedel |
5 | * Copyright (©) 2001 Mark Wedel |
6 | * Copyright (©) 1992,2007 Frank Tore Johansen |
6 | * Copyright (©) 1992 Frank Tore Johansen |
7 | * |
7 | * |
8 | * Crossfire TRT is free software: you can redistribute it and/or modify |
8 | * Deliantra is free software: you can redistribute it and/or modify it under |
9 | * it under the terms of the GNU General Public License as published by |
9 | * the terms of the Affero GNU General Public License as published by the |
10 | * the Free Software Foundation, either version 3 of the License, or |
10 | * Free Software Foundation, either version 3 of the License, or (at your |
11 | * (at your option) any later version. |
11 | * option) any later version. |
12 | * |
12 | * |
13 | * This program is distributed in the hope that it will be useful, |
13 | * This program is distributed in the hope that it will be useful, |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | * GNU General Public License for more details. |
16 | * GNU General Public License for more details. |
17 | * |
17 | * |
18 | * You should have received a copy of the GNU General Public License |
18 | * You should have received a copy of the Affero GNU General Public License |
19 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
19 | * and the GNU General Public License along with this program. If not, see |
|
|
20 | * <http://www.gnu.org/licenses/>. |
20 | * |
21 | * |
21 | * The authors can be reached via e-mail to <crossfire@schmorp.de> |
22 | * The authors can be reached via e-mail to <support@deliantra.net> |
22 | */ |
23 | */ |
23 | |
24 | |
24 | /** \file |
25 | /* |
25 | * Image related communication |
26 | * Image related communication |
26 | * |
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27 | * \date 2003-12-02 |
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28 | * |
27 | * |
29 | * This file deals with the image related communication to the |
28 | * This file deals with the image related communication to the |
30 | * client. I've located all the functions in this file - this |
29 | * client. I've located all the functions in this file - this |
31 | * localizes it more, and means that we don't need to declare |
30 | * localizes it more, and means that we don't need to declare |
32 | * things like all the structures as globals. |
31 | * things like all the structures as globals. |
… | |
… | |
35 | #include <global.h> |
34 | #include <global.h> |
36 | #include <sproto.h> |
35 | #include <sproto.h> |
37 | |
36 | |
38 | #include "crc.h" |
37 | #include "crc.h" |
39 | |
38 | |
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 |
39 | #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 | |
40 | |
194 | /** |
41 | /** |
195 | * client requested an image. send it rate-limited |
42 | * client requested an image. send it rate-limited |
196 | * before flushing. |
43 | * before flushing. |
197 | */ |
44 | */ |
… | |
… | |
200 | { |
47 | { |
201 | int idx = 0, pri = 0; |
48 | int idx = 0, pri = 0; |
202 | |
49 | |
203 | sscanf (buf, "%d %d", &idx, &pri); |
50 | sscanf (buf, "%d %d", &idx, &pri); |
204 | |
51 | |
205 | const facedata *d = face_data (idx, ns->faceset); |
52 | //TODO: somehow fetch default priority from send_fx here |
206 | |
53 | |
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54 | const faceinfo *f = face_info (idx); |
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55 | |
207 | if (!d) |
56 | if (!f) |
208 | return; // doh |
57 | return; // doh |
209 | |
58 | |
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59 | int set = ns->tileset; |
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60 | |
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61 | if (!f->face [set].chksum_len) |
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62 | set = 0; |
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63 | |
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64 | /* cfperl_ix calls cf::face::ix which loads the data */ |
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65 | /* and then calls cf::client::send_ix to actually queue the ix */ |
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66 | cfperl_ix (ns, set, idx, pri); |
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67 | } |
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68 | |
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69 | void |
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70 | client::ix_send (faceidx idx, sint16 pri, SV *data_sv) |
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71 | { |
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72 | STRLEN size; |
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73 | char *data = SvPVbyte (data_sv, size); |
210 | client::ixsend ix; |
74 | ixsend ix; |
211 | |
75 | |
212 | ix.pri = pri; |
76 | ix.pri = pri; |
213 | ix.idx = idx; |
77 | ix.idx = idx; |
214 | ix.ofs = d->data.size (); |
78 | ix.ofs = size; |
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79 | ix.data = (uint8 *)data; |
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80 | ix.data_sv = SvREFCNT_inc (data_sv); |
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81 | |
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82 | auto (pos, ixface.end ()); |
215 | |
83 | |
216 | // the by far most common case will be to insert |
84 | // the by far most common case will be to insert |
217 | // right at the end, so no looping. |
85 | // near the end, so little looping. |
218 | auto (i, ns->ixface.end ()); |
86 | while (pos != ixface.begin ()) |
219 | for (; i != ns->ixface.begin (); ) |
87 | { |
220 | if (pri >= (--i)->pri) |
88 | --pos; |
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89 | |
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90 | // sort within 2k bins, to slightly prefer smaller images |
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91 | if (pri > pos->pri || (pri == pos->pri && (ix.ofs >> 11) <= (pos->ofs >> 11))) |
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92 | { |
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93 | ++pos; |
221 | break; |
94 | break; |
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95 | } |
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96 | } |
222 | |
97 | |
223 | ns->ixface.insert (i, ix); |
98 | ixface.insert (pos, ix); |
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99 | |
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100 | #if 0 |
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101 | for (auto (i, ixface.begin ()); i != ixface.end (); ++i) |
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102 | fprintf (stderr, "<%d,%d> ", i->pri, i->ofs); |
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103 | fprintf (stderr, "\n"); |
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104 | #endif |
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105 | } |
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106 | |
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107 | void |
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108 | client::ix_pop () |
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109 | { |
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110 | ixsend &ix = ixface.back (); |
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111 | |
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112 | SvREFCNT_dec (ix.data_sv); |
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113 | |
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114 | ixface.pop_back (); |
224 | } |
115 | } |
225 | |
116 | |
226 | /** |
117 | /** |
227 | * Tells client the picture it has to use |
118 | * Sends a face offer (fx) to a client. |
228 | * to smooth a picture number given as argument. |
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229 | */ |
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230 | void |
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231 | AskSmooth (char *buf, int len, client *ns) |
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232 | { |
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233 | ns->send_face (atoi (buf)); |
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234 | ns->flush_fx (); |
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235 | } |
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236 | |
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237 | // how lame |
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238 | static void print_facename (packet &sl, const facedata &d) |
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239 | { |
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240 | for (int i = 0; i < CHKSUM_SIZE; ++i) |
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241 | sl.printf ("%02x", d.chksum [i]); |
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242 | } |
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243 | |
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244 | // gcfclient uses the server-provided checksum for comparison, but always |
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245 | // writes a broken checksum to its cache file, so we have to provide |
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246 | // gcfclient with the same broken (and useless) checksum just to have it |
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247 | // cache the image despite its bugs. |
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248 | static uint32 gcfclient_checksum (const facedata *d) |
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249 | { |
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250 | uint32 csum = 0; |
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251 | |
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252 | for (std::string::const_iterator i = d->data.begin (); |
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253 | i != d->data.end (); |
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254 | ++i) |
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255 | { |
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256 | csum = rotate_right (csum); |
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257 | csum += *(uint8 *)&*i; |
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258 | } |
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259 | |
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260 | return csum; |
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261 | } |
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262 | |
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263 | /** |
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264 | * Sends a face to a client if they are in pixmap mode |
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265 | * nothing gets sent in bitmap mode. |
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266 | * If nocache is true (nonzero), ignore the cache setting from the client - |
119 | * If nocache is true (nonzero), ignore the cache setting from the client - |
267 | * this is needed for the askface, in which we really do want to send the |
120 | * this is needed for the askface, in which we really do want to send the |
268 | * face (and askface is the only place that should be setting it). Otherwise, |
121 | * face (and askface is the only place that should be setting it). Otherwise, |
269 | * we look at the facecache, and if set, send the image name. |
122 | * we look at the facecache, and if set, send the image name. |
270 | */ |
123 | */ |
271 | void |
124 | void |
272 | client::send_face (faceidx facenum) |
125 | client::send_face (faceidx facenum, int pri) |
273 | { |
126 | { |
274 | // never send face 0. ever. it does not exist. |
127 | // never send face 0. ever. it does not exist. |
275 | if (!facenum) |
128 | if (!facenum) |
276 | return; |
129 | return; |
277 | |
130 | |
278 | const facedata *d = face_data (facenum, faceset); |
131 | faceinfo *f = face_info (facenum); |
279 | |
132 | |
280 | if (!d) |
133 | if (!f) |
281 | { |
134 | { |
282 | LOG (llevError, "client::send_face (%d) out of bounds??\n", facenum); |
135 | LOG (llevError | logBacktrace, "client::send_face (%d) out of bounds??\n", facenum); |
283 | return; |
136 | return; |
284 | } |
137 | } |
285 | |
138 | |
286 | if (faces_sent[facenum]) |
139 | // refuse to send non-image faces unless requested |
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140 | if (!fx_want [f->type]) |
287 | return; |
141 | return; |
288 | |
142 | |
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143 | if (faces_sent [facenum]) |
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144 | return; |
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145 | |
289 | faces_sent[facenum] = true; |
146 | faces_sent [facenum] = true; |
290 | |
147 | |
291 | // if for some reason we let a client without face caching connect, |
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292 | // we better support that decision here and implement it. |
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293 | if (!facecache) |
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294 | return send_image (facenum); |
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295 | |
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296 | if (fxix) |
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297 | { |
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298 | fxface.push_back (facenum); |
148 | fxface.push_back (facenum); |
299 | return; |
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300 | } |
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301 | |
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302 | packet sl; |
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303 | |
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304 | if (force_face0) |
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305 | sl << "face " << uint16 (facenum); |
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306 | else if (image2) |
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307 | sl << "face2 " << uint16 (facenum) << uint8 (0) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0); |
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308 | else |
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309 | sl << "face1 " << uint16 (facenum) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0); |
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310 | |
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311 | // how lame |
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312 | print_facename (sl, *d); |
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313 | send_packet (sl); |
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314 | |
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315 | if (EMI_smooth) |
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316 | { |
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317 | faceinfo *f = face_info (facenum); |
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318 | |
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319 | if (f->smooth) |
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320 | { |
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321 | send_face (f->smooth); |
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322 | |
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323 | packet sl ("smooth"); |
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324 | |
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325 | sl << uint16 (facenum) |
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326 | << uint16 (f->smooth); |
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327 | |
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328 | send_packet (sl); |
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329 | } |
|
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330 | } |
|
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331 | } |
149 | } |
332 | |
150 | |
333 | void client::flush_fx () |
151 | void client::flush_fx () |
334 | { |
152 | { |
335 | while (!fxface.empty ()) |
153 | while (!fxface.empty ()) |
336 | { |
154 | { |
337 | packet fx ("fx"); |
155 | packet fx ("fx"); |
338 | packet sx ("sx"); |
156 | packet sx ("sx"); |
|
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157 | int type = 0; |
339 | |
158 | |
340 | do |
159 | do |
341 | { |
160 | { |
342 | faceidx facenum = fxface.back (); fxface.pop_back (); |
161 | faceidx facenum = fxface.back (); fxface.pop_back (); |
343 | |
162 | |
344 | const facedata *d = face_data (facenum, faceset); |
163 | if (const faceinfo *f = face_info (facenum)) |
345 | |
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346 | if (d) |
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347 | { |
164 | { |
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165 | if (f->type != type) |
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166 | { |
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167 | type = f->type; |
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168 | |
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169 | fx << ber32 (0) |
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170 | << uint8 (1) << uint8 (type); |
|
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171 | } |
|
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172 | |
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173 | const facedata *d = f->data (tileset); |
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174 | |
348 | fx << ber32 (facenum) |
175 | fx << ber32 (facenum) |
349 | << data8 (d->chksum, CHKSUM_SIZE); |
176 | << data8 (d->chksum, d->chksum_len); |
350 | |
177 | |
351 | if (smoothing) |
178 | if (smoothing) |
352 | { |
179 | { |
353 | faceinfo *f = face_info (facenum); |
180 | faceinfo *f = face_info (facenum); |
354 | |
181 | |
355 | if (f->smooth) |
182 | if (f->smooth) |
356 | { |
183 | { |
357 | send_face (f->smooth); |
184 | send_face (f->smooth, -110); |
|
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185 | |
358 | sx << ber32 (facenum) |
186 | sx << ber32 (facenum) |
359 | << ber32 (f->smooth) |
187 | << ber32 (f->smooth) |
360 | << ber32 (f->smoothlevel); |
188 | << ber32 (f->smoothlevel); |
361 | } |
189 | } |
362 | } |
190 | } |
363 | } |
191 | } |
364 | } |
192 | } |
365 | while (!fxface.empty () |
193 | while (!fxface.empty () |
366 | && fx.room () > ber32::size + CHKSUM_SIZE + 1 |
194 | && fx.room () > ber32::size + CHKSUM_MAXLEN + 1 + 3 /* type switch */ |
367 | && sx.room () > ber32::size * 3); |
195 | && sx.room () > ber32::size * 3); |
368 | |
196 | |
369 | send_packet (fx); |
197 | send_packet (fx); |
370 | if (sx.length () > 3) send_packet (sx); |
198 | if (sx.length () > 3) send_packet (sx); |
371 | } |
199 | } |
372 | } |
|
|
373 | |
|
|
374 | void |
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|
375 | client::send_image (faceidx facenum) |
|
|
376 | { |
|
|
377 | // never send face 0. ever. it does not exist. |
|
|
378 | if (!facenum) |
|
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379 | return; |
|
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380 | |
|
|
381 | const facedata *d = face_data (facenum, faceset); |
|
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382 | |
|
|
383 | faces_sent[facenum] = true; |
|
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384 | |
|
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385 | if (!d) |
|
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386 | { |
|
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387 | LOG (llevError, "client::send_image (%d) out of bounds??\n", facenum); |
|
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388 | return; |
|
|
389 | } |
|
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390 | |
|
|
391 | //TODO: check type here? |
|
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392 | |
|
|
393 | if (force_image_newmap) |
|
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394 | force_newmap = true; |
|
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395 | |
|
|
396 | packet sl; |
|
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397 | |
|
|
398 | sl << (image2 ? "image2 " : "image ") |
|
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399 | << uint32 (facenum); |
|
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400 | |
|
|
401 | if (image2) |
|
|
402 | sl << uint8 (0); |
|
|
403 | |
|
|
404 | sl << uint32 (d->data.size ()) |
|
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405 | << data (d->data.data (), d->data.size ()); |
|
|
406 | |
|
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407 | send_packet (sl); |
|
|
408 | } |
200 | } |
409 | |
201 | |
410 | // send all faces of this object to the client |
202 | // send all faces of this object to the client |
411 | // this uses more bandwidth initially, but makes |
203 | // this uses more bandwidth initially, but makes |
412 | // animations look much smoother, and every client |
204 | // animations look much smoother, and every client |
413 | // is supposed to do client-side caching anyways. |
205 | // is supposed to do client-side caching anyways. |
414 | void |
206 | void |
415 | client::send_faces (object *ob) |
207 | client::send_faces (object *ob) |
416 | { |
208 | { |
417 | send_face (ob->face); |
209 | send_face (ob->face, 10); |
418 | |
210 | |
419 | if (ob->animation_id) |
211 | if (ob->animation_id) |
420 | { |
212 | { |
421 | animation &anim = animations [ob->animation_id]; |
213 | const animation &anim = ob->anim (); |
422 | |
214 | |
423 | for (int i = 0; i < anim.num_animations; i++) |
215 | for (int i = 0; i < anim.num_animations; i++) |
424 | send_face (anim.faces [i]); |
216 | send_face (anim.faces [i], -10); |
425 | } |
217 | } |
426 | } |
218 | } |
427 | |
219 | |
428 | /** |
220 | /** |
429 | * Need to send an animation sequence to the client. |
221 | * Need to send an animation sequence to the client. |
… | |
… | |
434 | */ |
226 | */ |
435 | void |
227 | void |
436 | client::send_animation (short anim_num) |
228 | client::send_animation (short anim_num) |
437 | { |
229 | { |
438 | /* Do some checking on the anim_num we got. Note that the animations |
230 | /* Do some checking on the anim_num we got. Note that the animations |
439 | * are added in contigous order, so if the number is in the valid |
231 | * are added in contiguous order, so if the number is in the valid |
440 | * range, it must be a valid animation. |
232 | * range, it must be a valid animation. |
441 | */ |
233 | */ |
442 | if (anim_num < 0 || anim_num >= animations.size ()) |
234 | if (anim_num < 0 || anim_num >= animations.size ()) |
443 | { |
235 | { |
444 | LOG (llevError, "esrv_send_anim (%d) out of bounds??\n", anim_num); |
236 | LOG (llevError, "esrv_send_anim (%d) out of bounds??\n", anim_num); |
… | |
… | |
453 | /* Build up the list of faces. Also, send any information (ie, the |
245 | /* Build up the list of faces. Also, send any information (ie, the |
454 | * the face itself) down to the client. |
246 | * the face itself) down to the client. |
455 | */ |
247 | */ |
456 | for (int i = 0; i < animations[anim_num].num_animations; i++) |
248 | for (int i = 0; i < animations[anim_num].num_animations; i++) |
457 | { |
249 | { |
458 | send_face (animations[anim_num].faces[i]); |
250 | send_face (animations[anim_num].faces[i], -20); |
459 | sl << uint16 (animations[anim_num].faces[i]); /* flags - not used right now */ |
251 | sl << uint16 (animations[anim_num].faces[i]); |
460 | } |
252 | } |
461 | |
253 | |
462 | send_packet (sl); |
254 | send_packet (sl); |
463 | |
255 | |
464 | anims_sent[anim_num] = 1; |
256 | anims_sent[anim_num] = 1; |
465 | } |
257 | } |
466 | |
258 | |
467 | /** |
|
|
468 | * Sends the number of images, checksum of the face file, |
|
|
469 | * and the image_info file information. See the doc/Developers/protocol |
|
|
470 | * if you want further detail. |
|
|
471 | */ |
|
|
472 | void |
259 | void |
473 | send_image_info (client *ns, char *params) |
260 | client::invalidate_face (faceidx idx) |
474 | { |
261 | { |
475 | packet sl; |
262 | faces_sent [idx] = false; |
476 | |
263 | force_newmap = true; |
477 | //TODO: second parameter is a checksum, but it makes no sense in this current framework |
|
|
478 | sl.printf ("replyinfo image_info\n%d\n%u\n", MAX_FACES, 0); |
|
|
479 | |
|
|
480 | sl << "0:base:standard:0:32x32:none:The old 32x32 faceset.\n"; |
|
|
481 | |
|
|
482 | ns->send_packet (sl); |
|
|
483 | } |
264 | } |
484 | |
265 | |
485 | /** |
|
|
486 | * Sends requested face information. |
|
|
487 | * \param ns socket to send to |
|
|
488 | * \param params contains first and last index of face |
|
|
489 | * |
|
|
490 | * For each image in [start..stop] sends |
|
|
491 | * - checksum |
|
|
492 | * - name |
|
|
493 | */ |
|
|
494 | void |
266 | void |
495 | send_image_sums (client *ns, char *params) |
267 | client::invalidate_all_faces () |
496 | { |
268 | { |
497 | int start, stop; |
269 | faces_sent.reset (); |
498 | char *cp; |
270 | force_newmap = true; |
499 | |
|
|
500 | packet sl; |
|
|
501 | |
|
|
502 | start = atoi (params); |
|
|
503 | for (cp = params; *cp != '\0'; cp++) |
|
|
504 | if (*cp == ' ') |
|
|
505 | break; |
|
|
506 | |
|
|
507 | stop = atoi (cp); |
|
|
508 | if (stop < start || *cp == '\0' || (stop - start) > 1000 || stop >= MAX_FACES) |
|
|
509 | { |
|
|
510 | sl.printf ("replyinfo image_sums %d %d", start, stop); |
|
|
511 | ns->send_packet (sl); |
|
|
512 | sl.reset (); |
|
|
513 | return; |
|
|
514 | } |
|
|
515 | |
|
|
516 | sl.printf ("replyinfo image_sums %d %d ", start, stop); |
|
|
517 | |
|
|
518 | for (int i = start; i <= stop && i < faces.size (); i++) |
|
|
519 | { |
|
|
520 | ns->faces_sent[i] = true; |
|
|
521 | |
|
|
522 | const facedata *d = face_data (i, ns->faceset); |
|
|
523 | |
|
|
524 | if (sl.room () < 2 + 4 + 1 + d->data.size () + 1) |
|
|
525 | break; |
|
|
526 | |
|
|
527 | sl << uint16 (i) |
|
|
528 | << uint32 (0) // checksum |
|
|
529 | << uint8 (ns->faceset); |
|
|
530 | |
|
|
531 | print_facename (sl, *d); sl << uint8 (0); |
|
|
532 | } |
|
|
533 | |
|
|
534 | /* It would make more sense to catch this pre-emptively in the code above. |
|
|
535 | * however, if this really happens, we probably just want to cut down the |
|
|
536 | * size to less than 1000, since that is what we claim the protocol would |
|
|
537 | * support. |
|
|
538 | */ |
|
|
539 | //TODO: taken care of above, should simply abort or make sure the above code is correct |
|
|
540 | if (sl.length () >= MAXSOCKBUF) |
|
|
541 | { |
|
|
542 | LOG (llevError, "send_image_send: buffer overrun, %d > %d\n", sl.length (), MAXSOCKBUF); |
|
|
543 | abort (); |
|
|
544 | } |
|
|
545 | |
|
|
546 | ns->send_packet (sl); |
|
|
547 | } |
271 | } |
548 | |
272 | |