main.cpp

光滑质点无网格法SPH并行计算程序

//      ___                       ___           ___           ___       ___     
//     /\__\          ___        /\__\         /\  \         /\__\     /\  \.   
//    /::|  |        /\  \      /::|  |       /::\  \       /:/  /    /::\  \.  
//   /:|:|  |        \:\  \    /:|:|  |      /:/\:\  \     /:/  /    /:/\:\  \. 
//  /:/|:|__|__      /::\__\  /:/|:|  |__   /:/  \:\  \   /:/  /    /::\~\:\  \.
// /:/ |::::\__\  __/:/\/__/ /:/ |:| /\__\ /:/__/_\:\__\ /:/__/    /:/\:\ \:\__\.
// \/__/~~/:/  / /\/:/  /    \/__|:|/:/  / \:\  /\ \/__/ \:\  \    \:\~\:\ \/__/
//       /:/  /  \::/__/         |:/:/  /   \:\ \:\__\    \:\  \    \:\ \:\__\. 
//      /:/  /    \:\__\         |::/  /     \:\/:/  /     \:\  \    \:\ \/__/  
//     /:/  /      \/__/         /:/  /       \::/  /       \:\__\    \:\__\.   
//     \/__/                     \/__/         \/__/         \/__/     \/__/    
// 
// =============================================================================
//                       Minimalist OpenGL Environment
// =============================================================================
//
// Copyright 2007 Balazs Domonkos
// 
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
// 
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// 
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

//
// Font rendering in MinGLE

// mingle.h should be included before all other
// OpenGL headers
#include <mingle.h>
using namespace MinGLE;

// #include <GL/glut.h> TODO
#include <iostream>

class SceneRenderer : public WindowListener {
    protected:
		virtual bool onRender() {
	    	// glutSolidTeapot(0.5); TODO
	    	
	    	// Enable the next window listener to render
	    	return false;
		}
};

class FontRenderer : public WindowListener {
    
    protected:
    	Font *mArialFont, *mZektonFont;
    
    public:
    	FontRenderer() {
			// Load the fonts
    		mArialFont = FontRendering::createFont("data", "fonts/arial.ttf", 40);
    		mZektonFont = FontRendering::createFont("data", "fonts/zekton.ttf");

    		// Save rasterized version
    		//FontRendering::saveFont(mZektonFont, "zekton-save.xml");

    		// Load rasterized version
    		//mZektonFont = FontRendering::createFont("zekton-save.xml");
    		
			// Set font color
    		mZektonFont->setColor(0.8, 0.7, 0.6, 0.5);
    	}
    
    	virtual ~FontRenderer() {
    		delete mArialFont;
    		delete mZektonFont;
    	}
    
    protected:
		virtual bool onRender() {
			// Store matrices
			glMatrixMode(GL_PROJECTION); glPushMatrix(); glLoadIdentity(); gluOrtho2D(0.0, mWindow->getWidth(), mWindow->getHeight(), 0.0);
			glMatrixMode(GL_MODELVIEW); glPushMatrix(); glLoadIdentity();
			glDisable(GL_DEPTH_TEST);

			// Render fonts to the frame buffer directly
	    	mArialFont->renderToFrameBuffer("Hello World!", 10, 50);
	    	mZektonFont->renderToFrameBuffer("This is a font demo...", 10, mWindow->getHeight()-40);

			// Restore matrices
			glEnable(GL_DEPTH_TEST);
			glMatrixMode(GL_PROJECTION); glPopMatrix();
			glMatrixMode(GL_MODELVIEW); glPopMatrix();
	    	
	    	return true;
		}
};

int main(int argc, char **argv) {

	try {

    	// Initialize rendering system
    	System::initialize(&argc, argv);

    	// Create window
    	Window *win = System::createWindow();
    	//win->setRenderMode(Window::RENDER_WHEN_IDLE);

    	// Register the renderers
    	// (font renderer is a layer above the scene renderer)
    	win->registerWindowListener(new SceneRenderer());
    	win->registerWindowListener(new FontRenderer());

		// Add navigator
		WindowListener *navigator = new ExaminerNavigator();
		win->registerWindowListener(navigator);

		// Add keyhandler
		ApplicationKeyHandler *keyHandler = new ApplicationKeyHandler();
		win->registerWindowListener(keyHandler);

    	// Setup OpenGL
    	glEnable(GL_DEPTH_TEST);
    	glShadeModel(GL_SMOOTH);
    
    	GLfloat position[] = { 3.0f, 3.0f, 3.0f, 1.0f };
    	GLfloat diffuse[] = { 0.8f, 0.8f, 0.8f, 1.0f };
    	GLfloat specular[] = {1.0f, 1.0f, 1.0f , 1.0f};
    	glEnable(GL_LIGHTING);
    	glEnable(GL_LIGHT0);
    	glLightfv(GL_LIGHT0, GL_POSITION, position);
    	glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
    	glLightfv(GL_LIGHT0, GL_SPECULAR, specular);

    	// Enter the event handing loop
    	System::enterMainLoop();
    	
	} catch(const Exception& e) {
		std::cerr << "Error: " << e.mDescription << " (Thrown in " << e.mFile << ':'
			<< e.mMethod << " line " << e.mLine << ')' << std::endl;
	}

    return 0;
}