source: GTP/trunk/Lib/Vis/Preprocessing/src/main.cpp @ 2718

#define USE_THREADS 0

#ifdef UNICODE
#undef UNICODE
#endif

#define NOMINMAX
#ifdef _WIN32
#include <windows.h>
#ifdef _CRT_SET
#include <crtdbg.h>
#endif // _CRT_SET
#endif
#include <cstdio>

#include "Camera.h"
#include "PreprocessorFactory.h"
#include "Parser.h"
#include "Environment.h"
#include "MeshKdTree.h"
#include "Preprocessor.h"
#include "common.h"
#include "PreprocessorThread.h"
#include "ObjExporter.h"
#include "SceneGraph.h"
#include "GlobalLinesRenderer.h"
#include "RayCaster.h"
#include "ViewCellsManager.h"
#include "SepPlanesBox3.h"


#ifdef USE_QT  
        #include "QtPreprocessorThread.h"
        #include "QtGlViewer.h"
        #include "QtGlRenderer.h"
        #include <QGLWidget>

#else
        #if USE_THREADS
                #include "BoostPreprocessorThread.h"
        #endif
#endif

#include "ResourceManager.h"
#include "GlRenderer.h"


#define USE_EXE_PATH false


using namespace GtpVisibilityPreprocessor;

//Preprocessor *preprocessor = NULL;
GlRendererWidget *rendererWidget = NULL;
//GlobalLinesRenderer *globalLinesRenderer = NULL;


// DLL function signature
typedef GlRendererWidget *(*importFunction)(Preprocessor *);


static string GetViewPointsListName(const string &filename)
{
        char buff[200];
        Environment::GetSingleton()->GetStringValue("ViewCells.randomViewPointsList", buff);
        string viewCellPointsFile = buff;

        if (viewCellPointsFile == "")
        {
                // if not specified, take file that has same prefix as scene file
                if (strstr(filename.c_str(), ".obj"))
                        viewCellPointsFile = ReplaceSuffix(filename, ".obj", ".vc");
                else if (strstr(filename.c_str(), ".dat"))
                        viewCellPointsFile = ReplaceSuffix(filename, ".dat", ".vc");
                else if (strstr(filename.c_str(), ".x3d"))
                        viewCellPointsFile = ReplaceSuffix(filename, ".x3d", ".vc");
        }

        return viewCellPointsFile;
}


void Cleanup()
{
        DEL_PTR(rendererWidget);
        DEL_PTR(preprocessor);

        Environment::DelSingleton();
        MeshManager::DelSingleton();
        MaterialManager::DelSingleton();
}




static string GetInternFilename(const string &filename, const string newSuffix)
{
        vector<string> filenames;
        const int files = SplitFilenames(filename, filenames);

        vector<string>::const_iterator sit, sit_end = filenames.end();
        string kdFilename;

        int i = 0;
        for (sit = filenames.begin(); sit != sit_end; ++ sit, ++ i)
        {
                string currentFile = *sit;
                string strippedFilename;

                if (i == 0)
                {       
                        strippedFilename = currentFile;
                }
                else
                {
                        char *str = StripPath(currentFile.c_str());
                        strippedFilename = string(str);

                        delete [] str;
                }
                
                string suffix("_");

                if (i == (int)filenames.size() - 1)
                {
                        suffix = newSuffix;
                }

                if (strstr(strippedFilename.c_str(), ".x3d")) 
                {
                        kdFilename += ReplaceSuffix(strippedFilename, ".x3d", suffix);
                }
        else if (strstr(strippedFilename.c_str(), ".dat"))
                {
                        kdFilename += ReplaceSuffix(strippedFilename, ".dat", suffix);
                } 
                else if (strstr(strippedFilename.c_str(), ".obj"))
                {
                        kdFilename += ReplaceSuffix(strippedFilename, ".obj", suffix);
                }
                else
                {
                        cerr << "Error: Currently unsupported format for kd, filename " << currentFile << endl;
                }
        }

        //cout << "kdfilename: " << kdFilename << endl;
        return kdFilename;
}

int
main(int argc, char **argv)
{
        int returnCode = 0;

#ifdef _CRT_SET

        //Now just call this function at the start of your program and if you're
        //compiling in debug mode (F5), any leaks will be displayed in the Output
        //window when the program shuts down. If you're not in debug mode this will
        //be ignored. Use it as you will!
        //note: from GDNet Direct [3.8.04 - 3.14.04] void detectMemoryLeaks() {

        _CrtSetDbgFlag(_CRTDBG_LEAK_CHECK_DF|_CRTDBG_ALLOC_MEM_DF);
        _CrtSetReportMode(_CRT_ASSERT,_CRTDBG_MODE_FILE);
        _CrtSetReportFile(_CRT_ASSERT,_CRTDBG_FILE_STDERR); 
#endif

        InitTiming();
        Debug.open("debug.log");

        
        //TestSepAxis();
        
        Environment::GetSingleton()->Parse(argc, argv, USE_EXE_PATH);
        MeshKdTree::ParseEnvironment();

        char buff[128];
        Environment::GetSingleton()->GetStringValue("Preprocessor.type", buff);
        string preprocessorType(buff);

        if (!(preprocessor = PreprocessorFactory::CreatePreprocessor(preprocessorType)))
        {
                Environment::DelSingleton();
                cerr << "Unknown preprocessor type" << endl;
                exit(1);
        }


        Environment::GetSingleton()->GetStringValue("Scene.filename", buff);
        string filename(buff);

        const string externKdTree = ReplaceSuffix(filename, ".obj", ".kdf");
        const string internKdTree = GetInternFilename(filename, preprocessor->mLoadMeshes ?
                ".kdm" : ".kdt");

        if (preprocessor->InitRayCast(externKdTree, internKdTree))
        {
                cout << "ray casting initialized!" << endl;
        }
        else
        {
                cout << "ray casting initialization failed!" << endl;
                Cleanup();
                exit(1);
        }

        /////////////
        //-- load scene 

        if (!preprocessor->LoadScene(filename))
        {
                cout << "loading file " << filename << " failed" << endl;
                Cleanup();
                exit(1);
        }


        ////////////
        //-- initialize external ray caster
        if (preprocessor->LoadInternKdTree(internKdTree))
        {
                cout << "intern kd tree loaded!" << endl;
        }
        else
        {
                cout << "loading intern kd tree failed!" << endl;
                Cleanup();
                exit(1);
        }

        
        // export objects as obj
        if (preprocessor->mExportObj)
        {
                if (strstr(filename.c_str(), ".obj"))
                {
                        cerr << "already in obj format" << endl;
                        if (0)  preprocessor->ExportObj("test.obj", preprocessor->mObjects);
                }
                else
                {
                        const string objname = GetInternFilename(filename, ".obj");

                        cout << "exporting scene to " << objname << endl;
                        bool success = preprocessor->ExportObj(objname, preprocessor->mObjects);

                        if (success)
                                cout << "finished exporting obj" << endl;
                        else
                                cerr << "error exporting " << objname << endl;
                }
        }

        // parse view cells related options
        if (!preprocessor->PrepareViewCells())
        {
                cerr << "error: view cells could not be loaded" << endl;
                Cleanup();
                exit(1);
        }
        else 
                cout << "view cells successfully loaded" << endl;


        const string viewCellPointsFile = GetViewPointsListName(filename);

        bool importRandomViewCells;
        Environment::GetSingleton()->GetBoolValue("ViewCells.importRandomViewCells", importRandomViewCells);

        if (importRandomViewCells)
        {
                cout << "importing random view points" << endl;

                if (preprocessor->mViewCellsManager->ImportViewCellsList(viewCellPointsFile))
                        cout << "successfully loaded " << viewCellPointsFile << endl;
                else
                        cerr << "error: file " << viewCellPointsFile << " not found" << endl;
        }

        // create meshes of view cells
        preprocessor->mViewCellsManager->FinalizeViewCells(true);

        cout << "view space box: " << preprocessor->mViewCellsManager->GetViewSpaceBox() << endl;
        bool useHwGlobalLines;
        Environment::GetSingleton()->GetBoolValue("Preprocessor.useHwGlobalLines",
                useHwGlobalLines);

        if (useHwGlobalLines)
                preprocessor->PrepareHwGlobalLines();

        // create a preprocessor thread (note: capsulates calls to boost fuctions!)
        PreprocessorThread *pt = NULL;

        //preprocessor->PrepareHwGlobalLines();
        //globalLinesRenderer->Run();


        bool guiSupported = false;
        const bool useRendererBuffer = true;

        int frames;
        Environment::GetSingleton()->GetIntValue("Preprocessor.pvsRenderErrorSamples", frames);

        bool evalPixelError;
        Environment::GetSingleton()->GetBoolValue("Preprocessor.evaluatePixelError", evalPixelError);


#ifdef USE_QT

        // create a qt application first (must be created before any opengl widget ...)
        QApplication *app = new QApplication(argc, NULL);

        pt = new QtPreprocessorThread(preprocessor);    

        if (evalPixelError && (importRandomViewCells || frames))
        {
                if (!QGLFormat::hasOpenGL() || !QGLPixelBuffer::hasOpenGLPbuffers())
                {
                        cerr << "this system does not support OpenGL/pbuffers" << endl;

                        QMessageBox::information(0, "OpenGL pbuffers", 
                                "This system does not support OpenGL/pbuffers.",
                                QMessageBox::Ok);

                        return NULL;
                }

                QGLFormat f;
                f.setStencil(true);
                QGLFormat::setDefaultFormat(f);

                // NOTE: render texture should be power of 2 and square
                // renderer must be initialised
                const float w = 1024;
                const float h = 1024;

                QtGlRendererBuffer *glbuf = 
                        new QtGlRendererBuffer(w, h,
                                                                   preprocessor->mSceneGraph,
                                                                   preprocessor->mViewCellsManager,
                                                                   preprocessor->mKdTree);

                preprocessor->renderer = glbuf;
        }

        bool exportRandomViewCells;
        Environment::GetSingleton()->GetBoolValue("ViewCells.exportRandomViewCells",
                exportRandomViewCells);

        if (exportRandomViewCells)
        {
                cout << "exporting random view cells" << endl;
                preprocessor->mViewCellsManager->ExportRandomViewCells(viewCellPointsFile);
                cout << "finished" << endl;
        }

        if (preprocessor->mUseGlRenderer || preprocessor->mUseGlDebugger)
        {
                ////////
                //-- create and run the preprocessor application in a parallel thread

                cout << "using gl widget" << endl;

                pt->InitThread();
                pt->RunThread();

                // display the render widget
                if (!rendererWidget) 
                {
                        if (!QGLFormat::hasOpenGL() || !QGLPixelBuffer::hasOpenGLPbuffers())
                        {
                                cerr << "this system does not support OpenGL/pbuffers" << endl;

                                QMessageBox::information(0, "OpenGL pbuffers", 
                                        "This system does not support OpenGL/pbuffers.",
                                        QMessageBox::Ok);

                                return NULL;
                        }

                        rendererWidget = 
                                new QtGlRendererWidget(preprocessor->mSceneGraph,
                                preprocessor->mViewCellsManager,
                                preprocessor->mKdTree);

                        rendererWidget->Show();

                        // hack matt
                        preprocessor->mRendererWidget = rendererWidget;
                        //rendererWidget->SetWindowTitle("Global Visualization");

                        if (1 && !rendererWidget->GetUseVbos()) // viewer not working with vbo
                        {
                                cout << "starting the qt viewer" << endl;
                                QtGlViewer *viewer = 
                                        new QtGlViewer(NULL, (QtGlRendererWidget *)rendererWidget);
                                viewer->show();
                        }

                        guiSupported = true; 
                }

                qApp->exec();
        }
#else // USE_QT

        /*#if USE_THREADS
        pt = new BoostPreprocessorThread(preprocessor);
        #else
        // use a dummy thread
        pt = new DummyPreprocessorThread(preprocessor);
        #endif
        */
#endif

        preprocessor->SetThread(pt);

        // no gui available
        if (!guiSupported) 
        {
                if (preprocessor->mUseGlRenderer || preprocessor->mUseGlDebugger)
                        cout << "warning: gui not supported!" << endl;

                preprocessor->mUseGlRenderer = false;
                preprocessor->mUseGlDebugger = false;
        }

        if (!(preprocessor->mUseGlRenderer || preprocessor->mUseGlDebugger)) 
        {
                cout << "executing main thread" << endl;
                // just call the mail method -> will be executed in the main thread
                pt->Main();
        }       

        // release memory
        Cleanup();
        delete pt;

        return returnCode;
}