SO3Engine/SO3Utils/SO3Plugin.cpp

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#include "SO3Plugin.h"
#include <Ogre.h>

namespace SO3
{

SPlugin::SPlugin(const std::string& pluginName)
{
        pluginInfos.fileName    = pluginName;
        pluginInfos.name                    = "Unknow";
        pluginInfos.author                = "Unknow";
        pluginInfos.authorEmail = "Unknow";
        pluginInfos.description = "Unknow";
        pluginInfos.version       = "Unknow";
        pluginInfos.urlLink       = "Unknow";
  std::string tempPluginName   = pluginName;
        #if SO3_PLATFORM == SO3_PLATFORM_LINUX
                // Add ".so" extension if required.
                if (tempPluginName.substr(tempPluginName.length() - 3, 3) != ".so")
                        tempPluginName = tempPluginName + ".so";
        #elif SO3_PLATFORM == SO3_PLATFORM_WINDOWS
                // Add ".dll" extension if required.
                if (tempPluginName.substr(tempPluginName.length() - 4, 4) != ".dll")
                        tempPluginName = tempPluginName + ".dll";
                
                #ifdef SO3_DEBUG
                        // Add "_d" for debug.  
                        if (tempPluginName.substr(tempPluginName.length() - 6, 2) != "_d")
                                tempPluginName.insert(tempPluginName.length() - 4, "_d");
                #endif
        #endif
        pluginInfos.fileName = tempPluginName;
        isLoaded = false;
        instanceId = NULL;
}

SPlugin::~SPlugin()
{
        if(isLoaded)
        Unload();
}

void SPlugin::Load()
{
        typedef SPluginInfos (*Informations)(void);
        SPluginInfos infos;

  Ogre::LogManager::getSingleton().logMessage("Loading SO3 plugin \"" + pluginInfos.fileName + "\"", Ogre::LML_CRITICAL);

        instanceId = (SO3_PLUGIN_INSTANCE)SO3_PLUGIN_LOAD(pluginInfos.fileName.c_str());
        if(instanceId)
        {
                void* test = 0;
                test = this->GetSymbol("SO3_Infos");
                if (!test)
                {
      Ogre::LogManager::getSingleton().logMessage("Symbol \"Infos\" not found for the plugin", Ogre::LML_CRITICAL);
                }
                else
                {
                        Informations fonctionInfos = (Informations)this->GetSymbol("SO3_Infos");
                        infos = fonctionInfos();
                        pluginInfos.name                    = infos.name;
                        pluginInfos.author                = infos.author;
                        pluginInfos.authorEmail = infos.authorEmail;
                        pluginInfos.description = infos.description;
                        pluginInfos.version       = infos.version;
                        pluginInfos.urlLink       = infos.urlLink ;

                        Ogre::LogManager::getSingleton().logMessage("Plugin name: "   + pluginInfos.name);
                        Ogre::LogManager::getSingleton().logMessage("Version: "       + pluginInfos.version);
                        Ogre::LogManager::getSingleton().logMessage("Description: "   + pluginInfos.description);
                        Ogre::LogManager::getSingleton().logMessage("Author: "        + pluginInfos.author);
                        Ogre::LogManager::getSingleton().logMessage("Author E-mail: " + pluginInfos.authorEmail);
                        Ogre::LogManager::getSingleton().logMessage("Url link: "      + pluginInfos.urlLink);
                }
    Ogre::LogManager::getSingleton().logMessage("Loading successfull.", Ogre::LML_CRITICAL);
                isLoaded = true;
        }
        else
        {
    OGRE_EXCEPT(Ogre::Exception::ERR_INTERNAL_ERROR, "Cannot load plugin \"" + pluginInfos.fileName + "\".  System error: " + SO3_PLUGIN_ERROR(), "SPlugin::Load");
        }
}

void SPlugin::Unload()
{
        if (isLoaded)
        {
    Ogre::LogManager::getSingleton().logMessage("Unloading plugin \"" + pluginInfos.fileName + "\"", Ogre::LML_CRITICAL);

                if(SO3_PLUGIN_UNLOAD(instanceId))
                        OGRE_EXCEPT(Ogre::Exception::ERR_INTERNAL_ERROR, "Can not unload SO3 plugin \"" + pluginInfos.fileName + "\". System error: " + SO3_PLUGIN_ERROR(), "SPlugin::Unload");
        }
        isLoaded = false;
}

bool SPlugin::IsLoaded()
{
        return isLoaded;
}

void* SPlugin::GetSymbol(const char* symbolName) const throw()
{
        return SO3_PLUGIN_GET_SYMBOL(instanceId, symbolName);
}

SPluginInfos SPlugin::GetInfo()
{
        return pluginInfos;
}

}

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