1 | /* -*-c++-*- osgVisual - Copyright (C) 2009-2010 Torben Dannhauer |
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2 | * |
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3 | * This library is based on OpenSceneGraph, open source and may be redistributed and/or modified under |
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4 | * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or |
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5 | * (at your option) any later version. The full license is in LICENSE file |
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6 | * included with this distribution, and on the openscenegraph.org website. |
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7 | * |
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8 | * osgVisual requires for some proprietary modules a license from the correspondig manufacturer. |
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9 | * You have to aquire licenses for all used proprietary modules. |
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10 | * |
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11 | * This library is distributed in the hope that it will be useful, |
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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14 | * OpenSceneGraph Public License for more details. |
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15 | */ |
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16 | |
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17 | #include "visual_dataIO.h" |
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18 | |
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19 | using namespace osgVisual; |
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20 | |
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21 | visual_dataIO::visual_dataIO() |
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22 | { |
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23 | OSG_NOTIFY( osg::ALWAYS ) << "visual_dataIO constructed" << std::endl; |
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24 | |
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25 | initialized = false; |
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26 | clusterMode = osgVisual::dataIO_cluster::STANDALONE; |
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27 | // Create Transport-Container: |
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28 | slotContainer = new osgVisual::dataIO_transportContainer(); |
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29 | } |
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30 | |
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31 | visual_dataIO::~visual_dataIO() |
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32 | { |
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33 | // Delete all slots: |
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34 | for(unsigned int i=0;i<dataSlots.size();i++) |
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35 | { |
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36 | delete dataSlots[i]; |
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37 | } |
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38 | dataSlots.clear(); |
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39 | |
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40 | OSG_NOTIFY( osg::ALWAYS ) << "visual_dataIO destructed" << std::endl; |
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41 | } |
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42 | |
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43 | visual_dataIO* visual_dataIO::getInstance() |
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44 | { |
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45 | static visual_dataIO instance; |
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46 | return &instance; |
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47 | }; |
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48 | |
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49 | void visual_dataIO::init(osgViewer::Viewer* viewer_, osg::ArgumentParser& arguments_, std::string configFileName) |
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50 | { |
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51 | OSG_NOTIFY( osg::ALWAYS ) << "visual_dataIO initialize.."; |
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52 | |
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53 | // Init variables |
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54 | viewer = viewer_; |
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55 | |
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56 | // Process XML configuration |
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57 | this->configFileName = configFileName; |
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58 | xmlNode *extLinkConfig=NULL; |
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59 | if(!processXMLConfiguration(extLinkConfig)) |
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60 | OSG_FATAL << "ERROR: visual_dataIO::init() - Failed to initialize dataIO via XML configuration!"; |
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61 | |
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62 | // Create extLink. |
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63 | #ifdef USE_EXTLINK_DUMMY |
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64 | extLink = new dataIO_extLinkDummy( dataSlots ); |
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65 | #endif |
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66 | #ifdef USE_EXTLINK_VCL |
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67 | extLink = new dataIO_extLinkVCL( dataSlots ); |
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68 | #endif |
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69 | extLink->init(); |
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70 | |
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71 | |
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72 | // Install callbacks to perform DataIO activities every frame: |
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73 | //// EventCallback at the absolute beginning of the frame |
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74 | eventCallback = new dataIO_eventCallback(this); |
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75 | viewer->getCamera()->setEventCallback( eventCallback ); |
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76 | //// FinalDrawCallback at the end of event and update handling, but BEFORE rendering the frame |
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77 | finalDrawCallback = new dataIO_finalDrawCallback(this); |
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78 | viewer->getCamera()->setFinalDrawCallback( finalDrawCallback ); |
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79 | |
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80 | initialized = true; |
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81 | } |
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82 | |
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83 | bool visual_dataIO::processXMLConfiguration(xmlNode* extLinkConfig_) |
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84 | { |
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85 | // Init XML |
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86 | xmlDoc* tmpDoc; |
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87 | bool disabled; |
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88 | xmlNode* config = util::getModuleXMLConfig( configFileName, "dataio", tmpDoc, disabled ); |
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89 | xmlNode* clusterConfig = NULL; |
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90 | |
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91 | if( disabled) |
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92 | OSG_NOTIFY( osg::ALWAYS ) << "..disabled by XML configuration file. dataIO can't be disabled. Ignoring." << std::endl; |
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93 | else |
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94 | OSG_NOTIFY( osg::ALWAYS ) << std::endl; |
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95 | |
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96 | // extract configuration values |
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97 | if(config) |
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98 | { |
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99 | xmlNode* a_node = config->children; |
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100 | |
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101 | for (xmlNode *cur_node = a_node; cur_node; cur_node = cur_node->next) |
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102 | { |
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103 | std::string node_name=reinterpret_cast<const char*>(cur_node->name); |
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104 | //OSG_ALWAYS << "----visual_distortion::processXMLConfiguration() - node type="<< cur_node->type <<", name=" << cur_node->name << std::endl; |
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105 | |
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106 | // Check for dataio node |
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107 | if(cur_node->type == XML_ELEMENT_NODE && node_name == "dataio") |
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108 | { |
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109 | // Extract cluster role |
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110 | xmlAttr *attr = cur_node->properties; |
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111 | while ( attr ) |
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112 | { |
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113 | std::string attr_name=reinterpret_cast<const char*>(attr->name); |
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114 | std::string attr_value=reinterpret_cast<const char*>(attr->children->content); |
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115 | if( attr_name == "clusterrole" ) |
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116 | { |
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117 | if(attr_value == "master") |
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118 | { |
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119 | OSG_NOTIFY( osg::ALWAYS ) << "Configure osgVisual as MASTER" << std::endl; |
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120 | clusterMode = osgVisual::dataIO_cluster::MASTER; |
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121 | } |
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122 | else if(attr_value == "slave") |
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123 | { |
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124 | OSG_NOTIFY( osg::ALWAYS ) << "Configure osgVisual as SLAVE" << std::endl; |
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125 | clusterMode = osgVisual::dataIO_cluster::SLAVE; |
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126 | slotContainer = NULL; // Slave only recieves container, therefor set this Pointer NULL (created instance will be deleted because it is an auto pointer). |
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127 | } |
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128 | else if(attr_value == "standalone") |
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129 | { |
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130 | OSG_NOTIFY( osg::ALWAYS ) << "Configure osgVisual as STANDALONE" << std::endl; |
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131 | clusterMode = osgVisual::dataIO_cluster::STANDALONE; |
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132 | } |
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133 | } |
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134 | attr = attr->next; |
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135 | } // WHILE attrib END |
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136 | } |
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137 | |
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138 | // Check for cluster node |
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139 | if(cur_node->type == XML_ELEMENT_NODE && node_name == "cluster") |
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140 | { |
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141 | // Pass cluster configuration to the used cluster implementation. |
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142 | // The implementation will use the configuration if it matches, otherwise falls back to dummy cluster |
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143 | clusterConfig = cur_node; |
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144 | } |
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145 | |
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146 | // Check for extLink node |
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147 | if(cur_node->type == XML_ELEMENT_NODE && node_name == "extlink") |
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148 | { |
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149 | // Check Attributes to determine if the dummy implementation or any other implementation must be instantiated |
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150 | |
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151 | // Pass XML attributes to extlink to analyse and configure it by extLink itself |
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152 | } |
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153 | |
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154 | } // FOR all nodes END |
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155 | |
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156 | |
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157 | |
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158 | // Create Cluster. |
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159 | #ifdef USE_CLUSTER_ASIO_TCP_IOSTREAM |
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160 | cluster = new dataIO_clusterAsioTcpIostream(); |
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161 | #endif |
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162 | #ifdef USE_CLUSTER_ENET |
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163 | cluster = new dataIO_clusterENet(); |
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164 | #endif |
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165 | if( !cluster.valid() || !clusterConfig || !cluster->init(clusterConfig, viewer, clusterMode, slotContainer, false) ) |
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166 | { |
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167 | cluster = new dataIO_clusterDummy(); |
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168 | cluster->init(clusterConfig, viewer, clusterMode, slotContainer, false); |
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169 | } |
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170 | |
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171 | |
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172 | |
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173 | // clean up |
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174 | xmlFreeDoc(tmpDoc); xmlCleanupParser(); |
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175 | return true; |
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176 | } // IF Config valid END |
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177 | else |
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178 | { |
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179 | OSG_WARN << "ERROR: visual_data::processXMLConfiguration() - Module configuration not found" << std::endl; |
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180 | return false; |
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181 | } |
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182 | return true; |
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183 | } |
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184 | |
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185 | void visual_dataIO::shutdown() |
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186 | { |
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187 | if(initialized) |
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188 | { |
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189 | OSG_NOTIFY( osg::ALWAYS ) << "Shutdown visual_dataIO..." << std::endl; |
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190 | |
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191 | viewer->getCamera()->removeEventCallback( eventCallback ); |
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192 | eventCallback = NULL; |
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193 | viewer->getCamera()->setFinalDrawCallback( NULL ); |
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194 | finalDrawCallback = NULL; |
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195 | |
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196 | viewer = NULL; |
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197 | |
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198 | |
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199 | if(cluster.valid()) |
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200 | cluster->shutdown(); |
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201 | if(extLink.valid()) |
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202 | extLink->shutdown(); |
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203 | } |
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204 | } |
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205 | |
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206 | void visual_dataIO::dataIO_eventCallback::operator()(osg::Node* node, osg::NodeVisitor* nv) |
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207 | { |
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208 | // perform all actions for the eventDrawCallback. |
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209 | OSG_NOTIFY( osg::INFO ) << "---- Executing EventCallback.." << std::endl; |
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210 | |
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211 | switch( dataIO->clusterMode ) |
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212 | { |
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213 | case osgVisual::dataIO_cluster::MASTER : |
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214 | { |
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215 | dataIO->extLink->readTO_OBJvalues(); |
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216 | dataIO->cluster->sendTO_OBJvaluesToSlaves(dataIO->calcViewMatrix()); |
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217 | } |
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218 | break; |
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219 | case osgVisual::dataIO_cluster::SLAVE : |
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220 | { |
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221 | dataIO->cluster->readTO_OBJvaluesFromMaster(); |
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222 | } |
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223 | break; |
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224 | case osgVisual::dataIO_cluster::STANDALONE : |
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225 | { |
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226 | dataIO->extLink->readTO_OBJvalues(); |
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227 | } |
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228 | break; |
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229 | default: |
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230 | OSG_NOTIFY( osg::FATAL ) << "ERROR: Unkown clustermode!" << std::endl; |
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231 | break; |
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232 | }; |
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233 | traverse(node, nv); |
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234 | } |
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235 | |
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236 | void visual_dataIO::dataIO_finalDrawCallback::operator() (const osg::Camera& camera) const |
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237 | { |
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238 | // perform all actions for the initialDrawCallback. |
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239 | OSG_NOTIFY( osg::INFO ) << "---- Executing InitialDrawCallback.." << std::endl; |
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240 | |
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241 | switch( dataIO->clusterMode ) |
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242 | { |
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243 | case osgVisual::dataIO_cluster::MASTER : |
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244 | { |
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245 | dataIO->extLink->writebackFROM_OBJvalues(); |
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246 | dataIO->cluster->waitForAllReadyToSwap(); |
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247 | dataIO->cluster->sendSwapCommand(); |
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248 | } |
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249 | break; |
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250 | case osgVisual::dataIO_cluster::SLAVE : |
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251 | { |
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252 | dataIO->cluster->reportAsReadyToSwap(); |
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253 | dataIO->cluster->waitForSwap(); |
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254 | } |
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255 | break; |
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256 | case osgVisual::dataIO_cluster::STANDALONE : |
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257 | { |
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258 | dataIO->extLink->writebackFROM_OBJvalues(); |
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259 | } |
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260 | break; |
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261 | default: |
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262 | OSG_NOTIFY( osg::FATAL ) << "ERROR: visual_dataIO::dataIO_finalDrawCallback::operator() - Unkown clustermode!" << std::endl; |
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263 | break; |
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264 | }; |
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265 | } |
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266 | |
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267 | void* visual_dataIO::getSlotPointer(std::string variableName_, osgVisual::dataIO_slot::dataDirection direction_, osgVisual::dataIO_slot::varType variableTyp_ ) |
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268 | { |
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269 | // iterate through slotlist. If found, return pointer, else add slot to list and return pointer |
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270 | for (unsigned int i=0; i<dataSlots.size(); i++) |
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271 | { |
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272 | // Check if this variable name&-type already exists |
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273 | if( dataSlots[i]->variableName == variableName_ && dataSlots[i]->direction == direction_ && dataSlots[i]->variableType == variableTyp_) |
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274 | { |
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275 | //OSG_NOTIFY( osg::INFO ) << "visual_dataIO::getSlotPointer() - Slot found at position " << i << std::endl; |
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276 | // Return pointer to the value |
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277 | return dataSlots[i]; |
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278 | } |
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279 | } |
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280 | |
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281 | // Slot does not exist -> add it to slot list |
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282 | //OSG_NOTIFY( osg::INFO ) << "visual_dataIO::getSlotPointer() - Slot not found, will add as new slot " << std::endl; |
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283 | dataIO_slot* newSlot = new dataIO_slot(); |
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284 | newSlot->variableName = variableName_; |
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285 | newSlot->variableType = variableTyp_; |
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286 | newSlot->value = 0; |
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287 | newSlot->sValue = ""; |
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288 | dataSlots.push_back( newSlot ); |
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289 | return dataSlots.back(); |
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290 | } |
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291 | |
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292 | double visual_dataIO::getSlotDataAsDouble(std::string variableName_, osgVisual::dataIO_slot::dataDirection direction_ ) |
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293 | { |
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294 | // iterate through slotlist. If found, return value |
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295 | for (unsigned int i=0; i<dataSlots.size(); i++) |
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296 | { |
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297 | // Check if this variable name&-type already exists |
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298 | if( dataSlots[i]->variableName == variableName_ && dataSlots[i]->direction == direction_ && dataSlots[i]->variableType == osgVisual::dataIO_slot::DOUBLE ) |
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299 | { |
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300 | //OSG_NOTIFY( osg::INFO ) << "visual_dataIO::getSlotDataAsDouble() - Slot found at position " << i << std::endl; |
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301 | return dataSlots[i]->value; |
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302 | } |
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303 | } |
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304 | return 0; |
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305 | } |
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306 | |
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307 | std::string visual_dataIO::getSlotDataAsString(std::string variableName_, osgVisual::dataIO_slot::dataDirection direction_ ) |
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308 | { |
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309 | // iterate through slotlist. If found, return value |
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310 | for (unsigned int i=0; i<dataSlots.size(); i++) |
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311 | { |
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312 | // Check if this variable name&-type already exists |
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313 | if( dataSlots[i]->variableName == variableName_ && dataSlots[i]->direction == direction_ && dataSlots[i]->variableType == osgVisual::dataIO_slot::STRING ) |
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314 | { |
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315 | //OSG_NOTIFY( osg::INFO ) << "visual_dataIO::getSlotDataAsDouble() - Slot found at position " << i << std::endl; |
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316 | return dataSlots[i]->sValue; |
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317 | } |
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318 | } |
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319 | return ""; |
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320 | } |
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321 | |
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322 | osgVisual::dataIO_slot* visual_dataIO::setSlotData(std::string variableName_, osgVisual::dataIO_slot::dataDirection direction_, std::string sValue_ ) |
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323 | { |
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324 | bool slotFound = false; |
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325 | // iterate through slotlist. If found, return pointer, else add slot to list |
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326 | for (unsigned int i=0; i<dataSlots.size(); i++) |
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327 | { |
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328 | // Check if this variable name&-type already exists |
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329 | if( dataSlots[i]->variableName == variableName_ && dataSlots[i]->direction == direction_ && dataSlots[i]->variableType == osgVisual::dataIO_slot::STRING) |
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330 | { |
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331 | // Update value |
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332 | dataSlots[i]->sValue = sValue_; |
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333 | slotFound = true; |
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334 | return dataSlots[i]; |
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335 | } |
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336 | |
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337 | } |
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338 | |
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339 | if (!slotFound) |
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340 | { |
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341 | // Slot does not exist -> add it to slot list |
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342 | dataIO_slot* newSlot = new dataIO_slot(); |
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343 | newSlot->variableName = variableName_; |
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344 | newSlot->direction = direction_; |
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345 | newSlot->variableType = osgVisual::dataIO_slot::STRING; |
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346 | newSlot->value = 0; |
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347 | newSlot->sValue = sValue_; |
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348 | dataSlots.push_back( newSlot ); |
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349 | return dataSlots.back(); |
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350 | } |
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351 | |
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352 | return NULL; |
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353 | } |
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354 | |
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355 | osgVisual::dataIO_slot* visual_dataIO::setSlotData(std::string variableName_, osgVisual::dataIO_slot::dataDirection direction_, double value_ ) |
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356 | { |
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357 | // iterate through slotlist. If found, return pointer, else add slot to list |
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358 | bool slotFound = false; |
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359 | for (unsigned int i=0; i<dataSlots.size(); i++) |
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360 | { |
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361 | // Check if this variableName & -type already exists |
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362 | if( dataSlots[i]->variableName == variableName_ && dataSlots[i]->direction == direction_ && dataSlots[i]->variableType == osgVisual::dataIO_slot::DOUBLE) |
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363 | { |
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364 | // Update value |
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365 | //OSG_NOTIFY( osg::ALWAYS ) << "setSlotData: " << variableName_ << " - value: " << value_ << std::endl; |
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366 | dataSlots[i]->value = value_; |
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367 | slotFound = true; |
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368 | return dataSlots[i]; |
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369 | } |
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370 | } |
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371 | |
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372 | if (!slotFound) |
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373 | { |
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374 | // Slot does not exist -> add it to slot list |
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375 | dataIO_slot* newSlot = new dataIO_slot(); |
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376 | newSlot->variableName = variableName_; |
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377 | newSlot->direction = direction_; |
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378 | newSlot->variableType = osgVisual::dataIO_slot::DOUBLE; |
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379 | newSlot->value = value_; |
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380 | newSlot->sValue = ""; |
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381 | dataSlots.push_back( newSlot ); |
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382 | return dataSlots.back(); |
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383 | } |
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384 | |
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385 | return NULL; |
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386 | } |
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387 | |
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388 | osg::Matrixd visual_dataIO::calcViewMatrix() |
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389 | { |
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390 | return viewer->getCameraManipulator()->getInverseMatrix(); |
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391 | } |
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