Changeset 2801 for code/branches/gui/src/orxonox/GraphicsManager.cc

Timestamp:

Mar 19, 2009, 10:58:43 AM (16 years ago)

Author:

rgrieder

Message:

Move graphic related content of GSGraphics to GraphicsManager which originally was GraphisEngine (but since we don't have an engine of our own, I renamed it).
Reduced OgreWindowEventUtilities.h dependency from GraphisManager.h (includes windows.h).

File:

• code/branches/gui/src/orxonox/GraphicsManager.cc (moved) (moved from code/branches/gui/src/orxonox/GraphicsEngine.cc) (3 diffs)

code/branches/gui/src/orxonox/GraphicsManager.cc

@@ -35 +35 @@
 
 #include "OrxonoxStableHeaders.h"
-#include "GraphicsEngine.h"
-
+#include "GraphicsManager.h"
+
+#include <fstream>
+#include <boost/filesystem.hpp>
+
+#include <OgreCompositorManager.h>
+#include <OgreConfigFile.h>
+#include <OgreFrameListener.h>
+#include <OgreRoot.h>
+#include <OgreLogManager.h>
+#include <OgreException.h>
 #include <OgreRenderWindow.h>
-
+#include <OgreRenderSystem.h>
+#include <OgreTextureManager.h>
+#include <OgreViewport.h>
+#include <OgreWindowEventUtilities.h>
+
+#include "SpecialConfig.h"
+#include "util/Debug.h"
+#include "util/Exception.h"
+#include "util/String.h"
+#include "util/SubString.h"
+#include "core/ConsoleCommand.h"
+#include "core/ConfigValueIncludes.h"
 #include "core/CoreIncludes.h"
-#include "core/ConfigValueIncludes.h"
-#include "util/Debug.h"
-
+#include "core/Core.h"
+#include "tools/WindowEventListener.h"
 #include "tools/ParticleInterface.h"
 
 namespace orxonox
 {
-    //SetConsoleCommand(GraphicsEngine, printScreen, true).setKeybindMode(KeybindMode::OnPress);
-
-    GraphicsEngine* GraphicsEngine::singletonRef_s = 0;
-
-    /**
-    @brief
-        Returns the singleton instance.
-    @return
-        The only instance of GraphicsEngine.
-    */
-    /*static*/ GraphicsEngine& GraphicsEngine::getInstance()
-    {
-        assert(singletonRef_s);
-        return *singletonRef_s;
-    }
+    class _OrxonoxExport OgreWindowEventListener : public Ogre::WindowEventListener
+    {
+        void windowResized     (Ogre::RenderWindow* rw);
+        void windowFocusChange (Ogre::RenderWindow* rw);
+        void windowClosed      (Ogre::RenderWindow* rw);
+        //void windowMoved       (Ogre::RenderWindow* rw);
+    };
+
+    GraphicsManager* GraphicsManager::singletonRef_s = 0;
 
     /**
@@ -67 +80 @@
         Non-initialising constructor.
     */
-    GraphicsEngine::GraphicsEngine()
-//        : root_(0)
-//        , renderWindow_(0)
-//        , viewport_(0)
-    {
-        RegisterObject(GraphicsEngine);
+    GraphicsManager::GraphicsManager()
+        : ogreRoot_(0)
+        , ogreLogger_(0)
+        , renderWindow_(0)
+        , viewport_(0)
+        , ogreWindowEventListener_(0)
+        , avgTickTime_(0.0f)
+        , avgFramesPerSecond_(0.0f)
+    {
+        RegisterObject(GraphicsManager);
 
         assert(singletonRef_s == 0);
         singletonRef_s = this;
 
-        this->viewport_ = 0;
-
-        this->detailLevelParticle_ = 0;
+        this->loaded_ = false;
 
         this->setConfigValues();
-        CCOUT(4) << "Constructed" << std::endl;
-    }
-
-    void GraphicsEngine::setConfigValues()
-    {
-        SetConfigValue(detailLevelParticle_, 2).description("O: off, 1: low, 2: normal, 3: high").callback(this, &GraphicsEngine::detailLevelParticleChanged);
-    }
-
-    void GraphicsEngine::detailLevelParticleChanged()
-    {
-        for (ObjectList<ParticleInterface>::iterator it = ObjectList<ParticleInterface>::begin(); it; ++it)
-            it->detailLevelChanged(this->detailLevelParticle_);
+    }
+
+    void GraphicsManager::initialise()
+    {
+        Core::setShowsGraphics(true);
+
+        // Ogre setup procedure
+        setupOgre();
+        // load all the required plugins for Ogre
+        loadOgrePlugins();
+        // read resource declaration file
+        this->declareResources();
+        // Reads ogre config and creates the render window
+        this->loadRenderer();
+
+        // TODO: Spread this
+        this->initialiseResources();
+
+        // add console commands
+        FunctorMember<GraphicsManager>* functor1 = createFunctor(&GraphicsManager::printScreen);
+        functor1->setObject(this);
+        ccPrintScreen_ = createConsoleCommand(functor1, "printScreen");
+        CommandExecutor::addConsoleCommandShortcut(ccPrintScreen_);
+
+        this->loaded_ = true;
     }
 
@@ -100 +128 @@
         Destroys all the Ogre related objects
     */
-    GraphicsEngine::~GraphicsEngine()
-    {
+    GraphicsManager::~GraphicsManager()
+    {
+        if (this->loaded_)
+        {
+            delete this->ccPrintScreen_;
+
+            if (this->ogreWindowEventListener_)
+            {
+                // remove our WindowEventListener first to avoid bad calls after the window has been destroyed
+                Ogre::WindowEventUtilities::removeWindowEventListener(this->renderWindow_, this->ogreWindowEventListener_);
+                delete this->ogreWindowEventListener_;
+            }
+
+            // unload all compositors
+            Ogre::CompositorManager::getSingleton().removeAll();
+
+            // destroy render window
+            Ogre::RenderSystem* renderer = this->ogreRoot_->getRenderSystem();
+            renderer->destroyRenderWindow("Orxonox");
+
+            // Delete OGRE main control organ
+            delete this->ogreRoot_;
+
+            // delete the ogre log and the logManager (since we have created it in the first place).
+            this->ogreLogger_->getDefaultLog()->removeListener(this);
+            this->ogreLogger_->destroyLog(Ogre::LogManager::getSingleton().getDefaultLog());
+            delete this->ogreLogger_;
+
+            // Don't showing graphics anymore
+            Core::setShowsGraphics(false);
+        }
+
+        assert(singletonRef_s);
         singletonRef_s = 0;
     }
+
+    void GraphicsManager::setConfigValues()
+    {
+        SetConfigValue(resourceFile_,    "resources.cfg")
+            .description("Location of the resources file in the data path.");
+        SetConfigValue(ogreConfigFile_,  "ogre.cfg")
+            .description("Location of the Ogre config file");
+        SetConfigValue(ogrePluginsFolder_, ORXONOX_OGRE_PLUGINS_FOLDER)
+            .description("Folder where the Ogre plugins are located.");
+        SetConfigValue(ogrePlugins_, ORXONOX_OGRE_PLUGINS)
+            .description("Comma separated list of all plugins to load.");
+        SetConfigValue(ogreLogFile_,     "ogre.log")
+            .description("Logfile for messages from Ogre. Use \"\" to suppress log file creation.");
+        SetConfigValue(ogreLogLevelTrivial_ , 5)
+            .description("Corresponding orxonox debug level for ogre Trivial");
+        SetConfigValue(ogreLogLevelNormal_  , 4)
+            .description("Corresponding orxonox debug level for ogre Normal");
+        SetConfigValue(ogreLogLevelCritical_, 2)
+            .description("Corresponding orxonox debug level for ogre Critical");
+        SetConfigValue(detailLevelParticle_, 2)
+            .description("O: off, 1: low, 2: normal, 3: high").callback(this, &GraphicsManager::detailLevelParticleChanged);
+    }
+
+    void GraphicsManager::detailLevelParticleChanged()
+    {
+        for (ObjectList<ParticleInterface>::iterator it = ObjectList<ParticleInterface>::begin(); it; ++it)
+            it->detailLevelChanged(this->detailLevelParticle_);
+    }
+
+    void GraphicsManager::update(const Clock& time)
+    {
+        if (this->loaded_)
+        {
+            Ogre::FrameEvent evt;
+            evt.timeSinceLastFrame = time.getDeltaTime();
+            evt.timeSinceLastEvent = time.getDeltaTime(); // note: same time, but shouldn't matter anyway
+
+            // don't forget to call _fireFrameStarted to OGRE to make sure
+            // everything goes smoothly
+            ogreRoot_->_fireFrameStarted(evt);
+
+            // Pump messages in all registered RenderWindows
+            // This calls the WindowEventListener objects.
+            Ogre::WindowEventUtilities::messagePump();
+            // make sure the window stays active even when not focused
+            // (probably only necessary on windows)
+            this->renderWindow_->setActive(true);
+
+            // render
+            ogreRoot_->_updateAllRenderTargets();
+
+            // again, just to be sure OGRE works fine
+            ogreRoot_->_fireFrameEnded(evt); // note: uses the same time as _fireFrameStarted
+        }
+    }
+
+    /**
+    @brief
+        Creates the Ogre Root object and sets up the ogre log.
+    */
+    void GraphicsManager::setupOgre()
+    {
+        COUT(3) << "Setting up Ogre..." << std::endl;
+
+        if (ogreConfigFile_ == "")
+        {
+            COUT(2) << "Warning: Ogre config file set to \"\". Defaulting to config.cfg" << std::endl;
+            ModifyConfigValue(ogreConfigFile_, tset, "config.cfg");
+        }
+        if (ogreLogFile_ == "")
+        {
+            COUT(2) << "Warning: Ogre log file set to \"\". Defaulting to ogre.log" << std::endl;
+            ModifyConfigValue(ogreLogFile_, tset, "ogre.log");
+        }
+
+        boost::filesystem::path ogreConfigFilepath(Core::getConfigPath() / this->ogreConfigFile_);
+        boost::filesystem::path ogreLogFilepath(Core::getLogPath() / this->ogreLogFile_);
+
+        // create a new logManager
+        // Ogre::Root will detect that we've already created a Log
+        ogreLogger_ = new Ogre::LogManager();
+        COUT(4) << "Ogre LogManager created" << std::endl;
+
+        // create our own log that we can listen to
+        Ogre::Log *myLog;
+        myLog = ogreLogger_->createLog(ogreLogFilepath.string(), true, false, false);
+        COUT(4) << "Ogre Log created" << std::endl;
+
+        myLog->setLogDetail(Ogre::LL_BOREME);
+        myLog->addListener(this);
+
+        COUT(4) << "Creating Ogre Root..." << std::endl;
+
+        // check for config file existence because Ogre displays (caught) exceptions if not
+        if (!boost::filesystem::exists(ogreConfigFilepath))
+        {
+            // create a zero sized file
+            std::ofstream creator;
+            creator.open(ogreConfigFilepath.string().c_str());
+            creator.close();
+        }
+
+        // Leave plugins file empty. We're going to do that part manually later
+        ogreRoot_ = new Ogre::Root("", ogreConfigFilepath.string(), ogreLogFilepath.string());
+
+        COUT(3) << "Ogre set up done." << std::endl;
+    }
+
+    void GraphicsManager::loadOgrePlugins()
+    {
+        // just to make sure the next statement doesn't segfault
+        if (ogrePluginsFolder_ == "")
+            ogrePluginsFolder_ = ".";
+
+        boost::filesystem::path folder(ogrePluginsFolder_);
+        // Do some SubString magic to get the comma separated list of plugins
+        SubString plugins(ogrePlugins_, ",", " ", false, 92, false, 34, false, 40, 41, false, '\0');
+        // Use backslash paths on Windows! file_string() already does that though.
+        for (unsigned int i = 0; i < plugins.size(); ++i)
+            ogreRoot_->loadPlugin((folder / plugins[i]).file_string());
+    }
+
+    void GraphicsManager::declareResources()
+    {
+        CCOUT(4) << "Declaring Resources" << std::endl;
+        //TODO: Specify layout of data file and maybe use xml-loader
+        //TODO: Work with ressource groups (should be generated by a special loader)
+
+        if (resourceFile_ == "")
+        {
+            COUT(2) << "Warning: Ogre resource file set to \"\". Defaulting to resources.cfg" << std::endl;
+            ModifyConfigValue(resourceFile_, tset, "resources.cfg");
+        }
+
+        // Load resource paths from data file using configfile ressource type
+        Ogre::ConfigFile cf;
+        try
+        {
+            cf.load((Core::getMediaPath() / resourceFile_).string());
+        }
+        catch (...)
+        {
+            //COUT(1) << ex.getFullDescription() << std::endl;
+            COUT(0) << "Have you forgotten to set the data path in orxnox.ini?" << std::endl;
+            throw;
+        }
+
+        // Go through all sections & settings in the file
+        Ogre::ConfigFile::SectionIterator seci = cf.getSectionIterator();
+
+        std::string secName, typeName, archName;
+        while (seci.hasMoreElements())
+        {
+            try
+            {
+                secName = seci.peekNextKey();
+                Ogre::ConfigFile::SettingsMultiMap *settings = seci.getNext();
+                Ogre::ConfigFile::SettingsMultiMap::iterator i;
+                for (i = settings->begin(); i != settings->end(); ++i)
+                {
+                    typeName = i->first; // for instance "FileSystem" or "Zip"
+                    archName = i->second; // name (and location) of archive
+
+                    Ogre::ResourceGroupManager::getSingleton().addResourceLocation(
+                        (Core::getMediaPath() / archName).string(), typeName, secName);
+                }
+            }
+            catch (Ogre::Exception& ex)
+            {
+                COUT(1) << ex.getFullDescription() << std::endl;
+            }
+        }
+    }
+
+    void GraphicsManager::loadRenderer()
+    {
+        CCOUT(4) << "Configuring Renderer" << std::endl;
+
+        if (!ogreRoot_->restoreConfig())
+            if (!ogreRoot_->showConfigDialog())
+                ThrowException(InitialisationFailed, "Could not show Ogre configuration dialogue.");
+
+        CCOUT(4) << "Creating render window" << std::endl;
+
+        this->renderWindow_ = ogreRoot_->initialise(true, "Orxonox");
+
+        this->ogreWindowEventListener_ = new OgreWindowEventListener();
+        Ogre::WindowEventUtilities::addWindowEventListener(this->renderWindow_, ogreWindowEventListener_);
+
+        Ogre::TextureManager::getSingleton().setDefaultNumMipmaps(0);
+
+        // create a full screen default viewport
+        this->viewport_ = this->renderWindow_->addViewport(0, 0);
+    }
+
+    void GraphicsManager::initialiseResources()
+    {
+        CCOUT(4) << "Initialising resources" << std::endl;
+        //TODO: Do NOT load all the groups, why are we doing that? And do we really do that? initialise != load...
+        //try
+        //{
+            Ogre::ResourceGroupManager::getSingleton().initialiseAllResourceGroups();
+            /*Ogre::StringVector str = Ogre::ResourceGroupManager::getSingleton().getResourceGroups();
+            for (unsigned int i = 0; i < str.size(); i++)
+            {
+            Ogre::ResourceGroupManager::getSingleton().loadResourceGroup(str[i]);
+            }*/
+        //}
+        //catch (...)
+        //{
+        //    CCOUT(2) << "Error: There was a serious error when initialising the resources." << std::endl;
+        //    throw;
+        //}
+    }
+
+    /**
+    @brief
+        Method called by the LogListener interface from Ogre.
+        We use it to capture Ogre log messages and handle it ourselves.
+    @param message
+        The message to be logged
+    @param lml
+        The message level the log is using
+    @param maskDebug
+        If we are printing to the console or not
+    @param logName
+        The name of this log (so you can have several listeners
+        for different logs, and identify them)
+    */
+    void GraphicsManager::messageLogged(const std::string& message,
+        Ogre::LogMessageLevel lml, bool maskDebug, const std::string& logName)
+    {
+        int orxonoxLevel;
+        switch (lml)
+        {
+        case Ogre::LML_TRIVIAL:
+            orxonoxLevel = this->ogreLogLevelTrivial_;
+            break;
+        case Ogre::LML_NORMAL:
+            orxonoxLevel = this->ogreLogLevelNormal_;
+            break;
+        case Ogre::LML_CRITICAL:
+            orxonoxLevel = this->ogreLogLevelCritical_;
+            break;
+        default:
+            orxonoxLevel = 0;
+        }
+        OutputHandler::getOutStream().setOutputLevel(orxonoxLevel)
+            << "Ogre: " << message << std::endl;
+    }
+
+    void GraphicsManager::printScreen()
+    {
+        assert(this->renderWindow_);
+       
+        this->renderWindow_->writeContentsToTimestampedFile(Core::getLogPathString() + "screenShot_", ".jpg");
+    }
+
+
+    /****** OgreWindowEventListener ******/
+
+    void OgreWindowEventListener::windowResized(Ogre::RenderWindow* rw)
+    {
+        for (ObjectList<orxonox::WindowEventListener>::iterator it
+            = ObjectList<orxonox::WindowEventListener>::begin(); it; ++it)
+            it->windowResized(rw->getWidth(), rw->getHeight());
+    }
+    void OgreWindowEventListener::windowFocusChange(Ogre::RenderWindow* rw)
+    {
+        for (ObjectList<orxonox::WindowEventListener>::iterator it
+            = ObjectList<orxonox::WindowEventListener>::begin(); it; ++it)
+            it->windowFocusChanged();
+    }
+    void OgreWindowEventListener::windowClosed(Ogre::RenderWindow* rw)
+    {
+        // TODO: Notify the right class to shut down the Game
+    }
 }