import scenes in a separate thread

src/bsdfs/phong.cpp

@@ -20,13 +20,6 @@ public:
 
 		m_kd = props.getFloat("diffuseReflectance", 0.5f);
 		m_ks = props.getFloat("specularReflectance", 0.2f);
-
-		Float avgDiffReflectance = m_diffuseColor->getAverage().average() * m_kd;
-		Float avgSpecularReflectance = m_specularColor->getAverage().average() * m_ks;
-
-		m_specularSamplingWeight = props.getFloat("specularSamplingWeight", 
-			avgSpecularReflectance / (avgDiffReflectance + avgSpecularReflectance));
-		m_diffuseSamplingWeight = 1.0f - m_specularSamplingWeight;
 		m_exponent = props.getFloat("exponent", 10.0f);
 
 		if (m_kd * m_diffuseColor->getMaximum().max() + m_ks * m_specularColor->getMaximum().max() > 1.0f) {
@@ -38,6 +31,13 @@ public:
 			m_kd *= normalization; m_ks *= normalization;
 		}
 
+		Float avgDiffReflectance = m_diffuseColor->getAverage().average() * m_kd;
+		Float avgSpecularReflectance = m_specularColor->getAverage().average() * m_ks;
+		
+		m_specularSamplingWeight = props.getFloat("specularSamplingWeight", 
+			avgSpecularReflectance / (avgDiffReflectance + avgSpecularReflectance));
+		m_diffuseSamplingWeight = 1.0f - m_specularSamplingWeight;
+
 		m_componentCount = 2;
 		m_type = new unsigned int[m_componentCount];
 		m_type[0] = EDiffuseReflection;

src/qtgui/common.h

@@ -149,4 +149,14 @@ struct SceneContext {
 	~SceneContext();
 };
 
+class NonClosableDialog : public QDialog {
+public:
+	NonClosableDialog(QWidget *parent) : QDialog(parent) {
+	}
+
+	void closeEvent(QCloseEvent *e) {
+		e->ignore();
+	}
+};
+
 #endif // QTGUI_COMMON_H

src/qtgui/importdlg.cpp

@@ -1,30 +1,11 @@
 #include "ui_importdlg.h"
 #include "importdlg.h"
 #include "acknowledgmentdlg.h"
-#include "../converter/converter.h"
 #include "mainwindow.h"
-#include "locateresourcedlg.h"
+#include "sceneimporter.h"
 
-class GUIGeometryConverter : public GeometryConverter {
-public:
-	inline GUIGeometryConverter(QWidget *parent) : m_parent(parent) {
-	}
-
-	std::string locateResource(const std::string &resource) {
-		LocateResourceDialog locateResource(m_parent, resource.c_str());
-		locateResource.setWindowModality(Qt::ApplicationModal);
-		if (locateResource.exec()) 
-			return locateResource.getFilename().toStdString();
-
-		return "";
-	}
-private:
-	QWidget *m_parent;
-};
-
-ImportDialog::ImportDialog(QWidget *parent) :
-		QDialog(parent, Qt::Sheet),
-	ui(new Ui::ImportDialog) {
+ImportDialog::ImportDialog(QWidget *parent, FileResolver *resolver) :
+	QDialog(parent, Qt::Sheet), ui(new Ui::ImportDialog), m_resolver(resolver) {
 	ui->setupUi(this);
 	connect(ui->sceneEdit, SIGNAL(textChanged(const QString &)),
 		this, SLOT(refresh()));
@@ -102,13 +83,13 @@ void ImportDialog::refresh() {
 
 void ImportDialog::accept() {
 	QDialog::accept();
-
 	QString sourceFile = ui->inputEdit->text();
+
 	QString directory = ui->directoryEdit->text();
 	QString targetScene = ui->sceneEdit->text();
 	QString adjustmentFile = ui->adjustmentEdit->text();
 
-	QDialog *dialog = new QDialog(static_cast<QWidget *>(parent()));
+	NonClosableDialog *dialog = new NonClosableDialog(static_cast<QWidget *>(parent()));
 	dialog->setWindowModality(Qt::WindowModal);
 	dialog->setWindowTitle("Converting ..");
 	QVBoxLayout *layout = new QVBoxLayout(dialog);
@@ -121,24 +102,29 @@ void ImportDialog::accept() {
 	dialog->show();
 	progressBar->show();
 
-	for (int i=0; i<10; ++i)
+	std::string filePath = m_resolver->pathFromFile(sourceFile.toStdString());
+	if (!m_resolver->contains(filePath))
+		m_resolver->addPath(filePath);
+
+	ref<SceneImporter> importingThread = new SceneImporter(this,
+		m_resolver, sourceFile.toStdString(), directory.toStdString(),
+		targetScene.toStdString(), adjustmentFile.toStdString(),
+		ui->sRGBButton->isChecked());
+	importingThread->start();
+
+	while (importingThread->isRunning()) {
 		QCoreApplication::processEvents();
+		importingThread->wait(20);
+	}
+	importingThread->join();
 
-	GUIGeometryConverter cvt(this);
-	cvt.setSRGB(ui->sRGBButton->isChecked());
-
-	try {
-		cvt.convert(sourceFile.toStdString(), directory.toStdString(),
-			targetScene.toStdString(), adjustmentFile.toStdString());
-		dialog->hide();
-		delete dialog;
-		((MainWindow *) parent())->loadFile(QString(cvt.getFilename().c_str()));
-	} catch (const std::exception &ex) {
-		dialog->hide();
-		delete dialog;
-		SLog(EWarn, "Conversion failed: %s", ex.what());
+	dialog->hide();
+	delete dialog;
+	
+	if (importingThread->getResult().length() > 0)
+		((MainWindow *) parent())->loadFile(QString(importingThread->getResult().c_str()));
+	else 
 		QMessageBox::critical(this, tr("Scene Import"),
 			tr("Conversion failed -- please see the log for details."),
 			QMessageBox::Ok);
-	}
 }

src/qtgui/importdlg.h

@@ -10,7 +10,7 @@ namespace Ui {
 class ImportDialog : public QDialog {
     Q_OBJECT
 public:
-	ImportDialog(QWidget *parent);
+	ImportDialog(QWidget *parent, FileResolver *resolver);
 	~ImportDialog();
 public slots:
 	void accept();
@@ -23,6 +23,7 @@ protected:
     void changeEvent(QEvent *e);
 private:
 	Ui::ImportDialog *ui;
+	ref<FileResolver> m_resolver;
 };
 
 #endif // __IMPORTDLG_H

src/qtgui/mainwindow.cpp

@@ -27,16 +27,6 @@
 #include "previewsettingsdlg.h"
 #endif
 
-class NonClosableDialog : public QDialog {
-public:
-	NonClosableDialog(QWidget *parent) : QDialog(parent) {
-	}
-
-	void closeEvent(QCloseEvent *e) {
-		e->ignore();
-	}
-};
-
 class ProgramVersion {
 public:
 	ProgramVersion(const QString &versionString) {
@@ -431,7 +421,12 @@ void MainWindow::onBugReportSubmitted() {
 }
 
 void MainWindow::on_actionImport_triggered() {
-	ImportDialog *dialog = new ImportDialog(this);
+	ref<FileResolver> resolver = FileResolver::getInstance();
+	ref<FileResolver> newResolver = resolver->clone();
+	for (int i=0; i<m_searchPaths.size(); ++i)
+		newResolver->addPath(m_searchPaths[i].toStdString());
+
+	ImportDialog *dialog = new ImportDialog(this, newResolver);
 	dialog->setAttribute(Qt::WA_DeleteOnClose);
 	connect(dialog, SIGNAL(finished(int)), this, SLOT(onImportDialogClose(int)));
 	m_currentChild = dialog;

src/qtgui/sceneimporter.cpp

@@ -0,0 +1,49 @@
+#include "sceneimporter.h"
+#include "../converter/converter.h"
+#include "locateresourcedlg.h"
+
+class GUIGeometryConverter : public GeometryConverter {
+public:
+	inline GUIGeometryConverter(QWidget *parent) : m_parent(parent) {
+	}
+
+	std::string locateResource(const std::string &resource) {
+		LocateResourceDialog locateResource(m_parent, resource.c_str());
+		locateResource.setWindowModality(Qt::ApplicationModal);
+		if (locateResource.exec()) 
+			return locateResource.getFilename().toStdString();
+
+		return "";
+	}
+private:
+	QWidget *m_parent;
+};
+
+SceneImporter::SceneImporter(QWidget *parent, FileResolver *resolver, 
+		const std::string &sourceFile, const std::string &directory,
+		const std::string &targetScene, const std::string &adjustmentFile,
+		bool sRGB)
+	: Thread("impt"), m_parent(parent), m_resolver(resolver), 
+	  m_sourceFile(sourceFile), m_directory(directory), 
+	  m_targetScene(targetScene), m_adjustmentFile(adjustmentFile), m_srgb(sRGB) {
+	m_wait = new WaitFlag();
+}
+
+SceneImporter::~SceneImporter() {
+}
+
+void SceneImporter::run() {
+	FileResolver::setInstance(m_resolver);
+	try {
+		GUIGeometryConverter cvt(m_parent);
+		cvt.setSRGB(m_srgb);
+		cvt.convert(m_sourceFile, m_directory, m_targetScene, m_adjustmentFile);
+		m_result = cvt.getFilename();
+	} catch (const std::exception &ex) {
+		SLog(EWarn, "Conversion failed: %s", ex.what());
+	} catch (...) {
+		SLog(EWarn, "An unknown type of error occurred!");
+	}
+	m_wait->set(true);
+}
+

src/qtgui/sceneimporter.h

@@ -0,0 +1,37 @@
+#if !defined(__SCENELOADER_H)
+#define __SCENELOADER_H
+
+#include <QtGui>
+#include <mitsuba/core/fresolver.h>
+#include <mitsuba/core/lock.h>
+
+using namespace mitsuba;
+
+class SceneImporter : public Thread {
+public:
+	SceneImporter(QWidget *parent, FileResolver *resolver, 
+		const std::string &sourceFile, const std::string &directory,
+		const std::string &targetScene, const std::string &adjustmentFile,
+		bool sRGB);
+
+	void run();
+
+	inline void wait(int ms) { m_wait->wait(ms); }
+
+	inline const std::string &getResult() const { return m_result; }
+protected:
+	virtual ~SceneImporter();
+private:
+	QWidget *m_parent;
+	ref<FileResolver> m_resolver;
+	ref<WaitFlag> m_wait;
+	std::string m_sourceFile;
+	std::string m_directory;
+	std::string m_targetScene;
+	std::string m_adjustmentFile;
+	std::string m_result;
+	bool m_srgb;
+};
+
+#endif // __SCENELOADER_H
+