main.cpp

光滑质点无网格法SPH并行计算程序

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// 
// =============================================================================
//                       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.

//
// Image handling demo

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

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

static Image *image = 0;
static GLuint texture = 0;

class MyListener : public WindowListener, public TimerListener {
    protected:
	
		virtual bool onRender() {
	    	//glutSolidTeapot(0.75); TODO
			GLUtils::drawGears(0.0);
	    	return true;
		}
	
		virtual bool onKeyEvent(int key, unsigned modifiers, KeyEventState state) {
			switch(key) {
				case KEY_SPACE:
					// Toggle animation
					if(mTimer->isRunning())
						mTimer->stop();
					else
						mTimer->start();
					return true;
				default:
					return false;
			}

			return false;
		}
	
		// This method is called when the timer ticks
		virtual void onTick() {
		    glMatrixMode(GL_MODELVIEW);
	    	glRotatef(30.0 * mTimer->getElapsedTime(), 0.0, 1.0, 0.0);
	    	redisplayRequest();
		}
};

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

	try {

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

    	// Create window
    	Window *win = System::createWindow();

    	// Register the listener and timer
    	MyListener *myListener = new MyListener();
    	Timer *timer = win->createTimer(0.04);
    	
    	// Register the listener for the window and the timer events
    	win->registerWindowListener((WindowListener *)myListener);
    	timer->registerTimerListener((TimerListener *) myListener);

		// Add navigator
		Navigator *navigator = new ExaminerNavigator();
		win->registerNavigator(navigator);

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

    	// Setup OpenGL
    	glEnable(GL_DEPTH_TEST);
    	glEnable(GL_TEXTURE_2D);
    	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);

		// Load image (the accurate path is resolved using 
    	// the `fileSystems' block of configuration file)
		image = Imaging::createImage("data", "textures/image.png");

		// Create texture using the image
    	glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
    	glGenTextures(1, &texture);
    	glBindTexture(GL_TEXTURE_2D, texture);
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
    	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
    	image->texImage2D();

    	// 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;
}