Java Code Examples for org.lwjgl.opengl.Display#create()

/**
 * Starts the lwjgl engine and shows a window, where the point clouds are rendered
 */
public void startEngine() {
    int width = 800;
    int height = 600;
    
    try {
        Display.setDisplayMode(new DisplayMode(width, height));
        Display.setFullscreen(false);
        Display.setTitle("Gaalop Visualization Window");

        Display.create();
    } catch (LWJGLException e) {
        e.printStackTrace();
        System.exit(0);
    }
    
    GL11.glEnable(GL11.GL_DEPTH_TEST);
    GL11.glShadeModel(GL11.GL_SMOOTH);
    changeSize(width, height);
    GL11.glDisable(GL11.GL_LIGHTING);


    // init OpenGL
    GL11.glViewport(0, 0, width, height);
    GL11.glMatrixMode(GL11.GL_PROJECTION);
    GL11.glLoadIdentity();
    GLU.gluPerspective((float) 65.0, (float) width / (float) height, (float) 0.1, 100);
    GL11.glMatrixMode(GL11.GL_MODELVIEW);
    
    
}
 

protected Window(Context context, WindowBuilder settings) {
	this.fpsCap = settings.getFpsCap();
	try {
		getSuitableFullScreenModes();
		DisplayMode resolution = getStartResolution(settings);
		Display.setInitialBackground(1, 1, 1);
		this.aspectRatio = (float) resolution.getWidth() / resolution.getHeight();
		setResolution(resolution, settings.isFullScreen());
		if (settings.hasIcon()) {
			Display.setIcon(settings.getIcon());
		}
		Display.setVSyncEnabled(settings.isvSync());
		Display.setTitle(settings.getTitle());
		Display.create(new PixelFormat().withDepthBits(24).withSamples(4), context.getAttribs());
		GL11.glViewport(0, 0, resolution.getWidth(), resolution.getHeight());
	} catch (LWJGLException e) {
		e.printStackTrace();
	}
}
 

private final static void createWindow() throws LWJGLException {
	int[] depth_array = new int[]{24, 16};
	int[] samples_array = new int[]{/*Settings.getSettings().samples, */0};
	LWJGLException last_exception = new LWJGLException("Could not find a suitable pixel format");
	for (int d = 0; d < depth_array.length; d++)
		for (int s = 0; s < samples_array.length; s++) {
			int depth = depth_array[d];
			int samples = samples_array[s];
			try {
				Display.create(new PixelFormat(0, depth, 0, samples));
				return;
			} catch (LWJGLException e) {
				last_exception = e;
				System.out.println("Failed window: depthbits = " + depth + " | samples = " + samples + " with exception " + e);
			}
		}
	throw last_exception;
}
 

private void setupOpenGL() {
    // Setup an OpenGL context with API version 3.2
    try {
        PixelFormat pixelFormat = new PixelFormat();
        ContextAttribs contextAtrributes = new ContextAttribs(3, 2)
            .withForwardCompatible(true)
            .withProfileCore(true);
         
        Display.setDisplayMode(new DisplayMode(WIDTH, HEIGHT));
        Display.setTitle(WINDOW_TITLE);
        Display.create(pixelFormat, contextAtrributes);
         
        GL11.glViewport(0, 0, WIDTH, HEIGHT);
    } catch (LWJGLException e) {
        e.printStackTrace();
        System.exit(-1);
    }
     
    // Setup an XNA like background color
    GL11.glClearColor(0.4f, 0.6f, 0.9f, 0f);
     
    // Map the internal OpenGL coordinate system to the entire screen
    GL11.glViewport(0, 0, WIDTH, HEIGHT);
     
    this.exitOnGLError("setupOpenGL");
}
 

public static void createDisplay() {
	try {
		Display.setDisplayMode(new DisplayMode(WIDTH, HEIGHT));
		ContextAttribs attribs = new ContextAttribs(3, 2).withProfileCore(true).withForwardCompatible(true);
		Display.create(new PixelFormat().withDepthBits(24).withSamples(4), attribs);
		Display.setTitle(TITLE);
		Display.setInitialBackground(1, 1, 1);
		GL11.glEnable(GL13.GL_MULTISAMPLE);
	} catch (LWJGLException e) {
		e.printStackTrace();
		System.err.println("Couldn't create display!");
		System.exit(-1);
	}
	GL11.glViewport(0, 0, WIDTH, HEIGHT);
	lastFrameTime = getCurrentTime();
}
 

private void initOpengl() {
      try {
          /* Задаём размер будущего окна */
          Display.setDisplayMode(new DisplayMode(Constants.SCREEN_WIDTH, Constants.SCREEN_HEIGHT));

          /* Задаём имя будущего окна */
          Display.setTitle(Constants.SCREEN_NAME);

          /* Создаём окно */
          Display.create();
      } catch (LWJGLException e) {
          ErrorCatcher.graphicsFailure(e);
      }

      glMatrixMode(GL_PROJECTION);
      glLoadIdentity();
      glOrtho(0, Constants.SCREEN_WIDTH,0, Constants.SCREEN_HEIGHT,1,-1);
      glMatrixMode(GL_MODELVIEW);

/* Для поддержки текстур */
      glEnable(GL_TEXTURE_2D);

/* Для поддержки прозрачности */
      glEnable(GL_BLEND);
      glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);

/* Белый фоновый цвет */
      glClearColor(1,1,1,1);
  }
 

public static void main (String[] args) throws Exception {
	System.setProperty("org.lwjgl.librarypath", new File("lib/natives").getAbsolutePath());
	Display.setTitle("TWL Examples");
	Display.setDisplayMode(new DisplayMode(800, 600));
	Display.setVSyncEnabled(true);
	Display.create();
	new TwlTest();
}
 

/**
 * Creates a display window on which we can render our game. The dimensions
 * of the window are determined by setting the display mode. By using
 * "glViewport" we tell OpenGL which part of the window we want to render
 * our game onto. We indicated that we want to use the entire window.
 */
public static void createDisplay() {
	ContextAttribs attribs = new ContextAttribs(3, 2).withForwardCompatible(true).withProfileCore(true);
	try {
		Display.setDisplayMode(new DisplayMode(WIDTH, HEIGHT));
		Display.create(new PixelFormat(), attribs);
		Display.setTitle(TITLE);
	} catch (LWJGLException e) {
		e.printStackTrace();
	}
	GL11.glViewport(0, 0, WIDTH, HEIGHT);
}
 

/**
 * Initializes the context with its attributes and PixelFormat supplied.
 * 
 * This method does not return until the game loop ends.
 * 
 * @param format The PixelFormat specifying the buffers.
 * @param attribs The context attributes.
 */
public final void run(PixelFormat format, ContextAttribs attribs) {
	try {
		Display.create(format, attribs);
	} catch(Exception exc) {
		exc.printStackTrace();
		System.exit(1);
	}
	
	gameLoop();
}
 

public void init(int width, int height, String name) {
	time = System.nanoTime();
	
	windowWidth = width*scaleX;
	windowHeight = height*scaleY;

	try {
		Display.setDisplayMode(new DisplayMode(windowWidth, windowHeight));
		Display.create();
		Display.setTitle(name);
		Keyboard.create();
		Keyboard.enableRepeatEvents(true);
		Mouse.create();
		glContextExists = true;
	} catch (LWJGLException e) {
		e.printStackTrace();
		System.exit(0);
	}
	
	//init OpenGL
	glEnable(GL_DEPTH_TEST);
	glDepthFunc(GL_LEQUAL);
	glEnable(GL_ALPHA_TEST);
	glAlphaFunc(GL_GREATER, 0.01f);
	glEnable(GL_TEXTURE_2D);
	glShadeModel(GL_SMOOTH);
	glClearDepth(1.0f);
	glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
	glEnable(GL_BLEND);
	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
	glViewport(0, 0, windowWidth, windowHeight);
	glMatrixMode(GL_PROJECTION);
	glLoadIdentity();
	glOrtho(0, windowWidth/scaleX, windowHeight/scaleY, 0, 1, -1);		//It's basically a camera
	glMatrixMode(GL_MODELVIEW);
	
	keys = new ArrayList<KeyboardEvent>();
	mouseEvents = new ArrayList<MouseEvent>();
}
 

public static void CreateWindow(int width, int height, String title)
{
	Display.setTitle(title);
	try 
	{
		Display.setDisplayMode(new DisplayMode(width, height));
		Display.create();
		Keyboard.create();
		Mouse.create();
	} 
	catch (LWJGLException e) 
	{
		e.printStackTrace();
	}
}
 

/**
 * Create the LWJGL display
 * 
 * @throws Exception Failure to create display
 */
private void createDisplay() throws Exception {
   try {
      // create display with alpha
      Display.create(new PixelFormat(8,8,GameContainer.stencil ? 8 : 0));
      alphaSupport = true;
   } catch (Exception e) {
      // if we couldn't get alpha, let us know
      alphaSupport = false;
       Display.destroy();
       // create display without alpha
      Display.create();
   }
}
 

/**
 * Try creating a display with the given format
 * 
 * @param format The format to attempt
 * @throws LWJGLException Indicates a failure to support the given format
 */
private void tryCreateDisplay(PixelFormat format) throws LWJGLException {
	if (SHARED_DRAWABLE == null) 
	{
		Display.create(format);
	}
	else
	{
		Display.create(format, SHARED_DRAWABLE);
	}
}
 

/**
 * Initialise the GL display
 * 
 * @param width The width of the display
 * @param height The height of the display
 */
private void initGL(int width, int height) {
	try {
		Display.setDisplayMode(new DisplayMode(width,height));
		Display.create();
		Display.setVSyncEnabled(true);
	} catch (LWJGLException e) {
		e.printStackTrace();
		System.exit(0);
	}

	GL11.glEnable(GL11.GL_TEXTURE_2D);
	GL11.glShadeModel(GL11.GL_SMOOTH);        
	GL11.glDisable(GL11.GL_DEPTH_TEST);
	GL11.glDisable(GL11.GL_LIGHTING);                    
       
	GL11.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);                
       GL11.glClearDepth(1);                                       
       
       GL11.glEnable(GL11.GL_BLEND);
       GL11.glBlendFunc(GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA);
       
       GL11.glViewport(0,0,width,height);
	GL11.glMatrixMode(GL11.GL_MODELVIEW);

	GL11.glMatrixMode(GL11.GL_PROJECTION);
	GL11.glLoadIdentity();
	GL11.glOrtho(0, width, height, 0, 1, -1);
	GL11.glMatrixMode(GL11.GL_MODELVIEW);
}
 

public static void main(String[] args) throws Exception {
	if (args.length < 1) {
		System.err.println("Usage: modelfile");
		System.exit(1);
	}

	ModelList list = new ModelList();
	try (Cache cache = new Cache(FileStore.open(Constants.CACHE_PATH))) {
		list.initialize(cache);
	}

	Model md = list.list(Integer.valueOf(args[0]));

	Display.setDisplayMode(new DisplayMode(800, 600));
	Display.setTitle("Model Viewer");
	Display.setInitialBackground((float) Color.gray.getRed() / 255f, (float) Color.gray.getGreen() / 255f,
			(float) Color.gray.getBlue() / 255f);
	Display.create();

	GL11.glMatrixMode(GL11.GL_PROJECTION);
	GL11.glLoadIdentity();
	double aspect = 1;
	double near = 1; // near should be chosen as far into the scene as
						// possible
	double far = 1000;
	double fov = 1; // 1 gives you a 90� field of view. It's
					// tan(fov_angle)/2.
	GL11.glFrustum(-aspect * near * fov, aspect * near * fov, -fov, fov, near, far);

	GL11.glCullFace(GL11.GL_BACK);

	long last = 0;

	while (!Display.isCloseRequested()) {
		// Clear the screen and depth buffer
		GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);

		GL11.glBegin(GL11.GL_TRIANGLES);

		for (int i = 0; i < md.faceCount; ++i) {
			int vertexA = md.triangleX[i];
			int vertexB = md.triangleY[i];
			int vertexC = md.triangleZ[i];

			int vertexAx = md.vertexX[vertexA];
			int vertexAy = md.vertexY[vertexA];
			int vertexAz = md.vertexZ[vertexA];

			int vertexBx = md.vertexX[vertexB];
			int vertexBy = md.vertexY[vertexB];
			int vertexBz = md.vertexZ[vertexB];

			int vertexCx = md.vertexX[vertexC];
			int vertexCy = md.vertexY[vertexC];
			int vertexCz = md.vertexZ[vertexC];

			short hsb = md.faceColor[i];

			int rgb = hsbToRGB(hsb);
			Color c = new Color(rgb);

			// convert to range of 0-1
			float rf = (float) c.getRed() / 255f;
			float gf = (float) c.getGreen() / 255f;
			float bf = (float) c.getBlue() / 255f;

			GL11.glColor3f(rf, gf, bf);

			GL11.glVertex3i(vertexAx, vertexAy, vertexAz - 50);
			GL11.glVertex3i(vertexBx, vertexBy, vertexBz - 50);
			GL11.glVertex3i(vertexCx, vertexCy, vertexCz - 50);
		}

		GL11.glEnd();

		Display.update();
		Display.sync(50); // fps

		long delta = System.currentTimeMillis() - last;
		last = System.currentTimeMillis();

		Camera.create();
		Camera.acceptInput(delta);

		Camera.apply();
	}

	Display.destroy();
}
 

Renderer( int screenWidth, int screenHeight )
{
    try
    {
        Display.setDisplayMode(new DisplayMode(screenWidth, screenHeight));
        Display.create();
        Display.setTitle( "AnyaBasic 0.4.0 beta" );
    }
    catch( LWJGLException e )
    {
        e.printStackTrace();
    }

    this.screenWidth = screenWidth;
    this.screenHeight = screenHeight;

    GL11.glViewport( 0, 0,
            screenWidth, screenHeight );

    GL11.glMatrixMode( GL11.GL_PROJECTION );
    GL11.glLoadIdentity();

    GL11.glOrtho( 0, screenWidth, screenHeight, 0, 1, -1 );
    GL11.glMatrixMode( GL11.GL_MODELVIEW );

    GL11.glLoadIdentity();

    GL11.glShadeModel(GL11.GL_SMOOTH);             //set shading to smooth(try GL_FLAT)
    GL11.glClearColor(0.0f, 0.0f, 0.0f, 1.0f);     //set Clear color to BLACK
    GL11.glClearDepth(1.0f);                       //Set Depth buffer to 1(z-Buffer)
    GL11.glDisable(GL11.GL_DEPTH_TEST);            //Disable Depth Testing so that our z-buffer works

    GL11.glDepthFunc(GL11.GL_LEQUAL);

    GL11.glEnable(GL11.GL_COLOR_MATERIAL);


    GL11.glEnable(GL11.GL_TEXTURE_2D);

    GL11.glEnable( GL11.GL_ALPHA_TEST );
    GL11.glAlphaFunc(GL11.GL_GREATER, 0);

    GL11.glEnable( GL11.GL_BLEND );
    GL11.glBlendFunc( GL11.GL_SRC_ALPHA, GL11.GL_ONE_MINUS_SRC_ALPHA );

    GL11.glHint(GL11.GL_PERSPECTIVE_CORRECTION_HINT, GL11.GL_NICEST);

    GL11.glDisable(GL11.GL_CULL_FACE);

    GL11.glPolygonMode(GL11.GL_FRONT, GL11.GL_FILL);

    GL11.glMatrixMode( GL11.GL_MODELVIEW );
    GL11.glLoadIdentity();
    GL11.glTranslatef( 0.375f, 0.375f, 0 );	// magic trick

}
 

/**
 * Inits the.
 *
 * @param width the width
 * @param height the height
 * @param name the name
 */
public void init(int width, int height, String name) {
	Game.logicalWidth = width;
	Game.logicalHeight = height;
	Game.scale = FEResources.getWindowScale();
	final int windowWidth = Math.round(logicalWidth * scale);
	final int windowHeight = Math.round(logicalHeight * scale);

	try {
		Display.setDisplayMode(new DisplayMode(windowWidth, windowHeight));
		Display.create();
		Display.setTitle(name);
		Keyboard.create();
		Keyboard.enableRepeatEvents(true);
		Mouse.create();
		glContextExists = true;
	} catch (LWJGLException e) {
		e.printStackTrace();
		System.exit(0);
	}
	
	//init OpenGL
	glEnable(GL_DEPTH_TEST);
	glDepthFunc(GL_LEQUAL);
	glEnable(GL_ALPHA_TEST);
	glAlphaFunc(GL_GREATER, 0.01f);
	glEnable(GL_TEXTURE_2D);
	glShadeModel(GL_SMOOTH);
	glClearDepth(1.0f);
	glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
	glEnable(GL_BLEND);
	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
	glViewport(0, 0, windowWidth, windowHeight);
	glMatrixMode(GL_PROJECTION);
	glLoadIdentity();
	glOrtho(0, width, height, 0, 1, -1);		//It's basically a camera
	glMatrixMode(GL_MODELVIEW);
	
	keys = new ArrayList<KeyboardEvent>();
	mouseEvents = new ArrayList<MouseEvent>();
}
 

@Before
public void globalDisplayBefore() throws org.lwjgl.LWJGLException {
	Display.setDisplayMode(new org.lwjgl.opengl.DisplayMode(5, 5));
	Display.create();
}
 

public final static void main(String[] args) {
		try {
			Display.setDisplayMode(new DisplayMode(DISPLAY_WIDTH, DISPLAY_HEIGHT));
			Display.create();
			initGL();

			// Load font
			InputStream font_is = Utils.makeURL("/fonts/tahoma.ttf").openStream();
			java.awt.Font src_font = java.awt.Font.createFont(java.awt.Font.TRUETYPE_FONT, font_is);
			java.awt.Font font = src_font.deriveFont(14f);

			// Load text
			InputStreamReader text_is = new InputStreamReader(Utils.makeURL("/test_text.txt").openStream());
			StringBuffer str_buffer = new StringBuffer();
			int c = text_is.read();
			do {
				str_buffer.append((char)c);
				c = text_is.read();
			} while (c != -1);
			String str = str_buffer.toString();

			// Build texture
			int[] pixels = new int[WIDTH*HEIGHT];
//			ByteBuffer pixel_data = ByteBuffer.wrap(pixels);						// NEW
//			pixelDataFromString(WIDTH, HEIGHT, str, font, pixels);					// NEW
			IntBuffer pixel_data = BufferUtils.createIntBuffer(WIDTH*HEIGHT);	// OLD
			pixel_data.put(pixels);													// OLD
			pixel_data.rewind();

			int texture_handle = createTexture(WIDTH, HEIGHT, pixel_data);
			
		FontRenderContext frc = g2d.getFontRenderContext();
		AttributedString att_str = new AttributedString(str);
		att_str.addAttribute(TextAttribute.FONT, font);
		AttributedCharacterIterator iterator = att_str.getIterator();
		LineBreakMeasurer measurer = new LineBreakMeasurer(iterator, frc);
		
			while (!Display.isCloseRequested()) {
long start_time = System.currentTimeMillis();
for (int i = 0; i < 10; i++) {
pixelDataFromString(WIDTH, HEIGHT, str, font, pixels, measurer);
pixel_data.put(pixels); // OLD
pixel_data.rewind();

//texture_handle = createTexture(WIDTH, HEIGHT, pixel_data);
updateTexture(WIDTH, HEIGHT, pixel_data);
				GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);
				GL11.glLoadIdentity();
				
				// Background
				/*
				GL11.glDisable(GL11.GL_TEXTURE_2D);
				GL11.glColor4f(.1f, .1f, .1f, 1f);
				GL11.glBegin(GL11.GL_QUADS);
				GL11.glVertex3f(0f, DISPLAY_HEIGHT-RENDER_SIZE, 1f);
				GL11.glVertex3f(RENDER_SIZE, DISPLAY_HEIGHT-RENDER_SIZE, 1f);
				GL11.glVertex3f(RENDER_SIZE, DISPLAY_HEIGHT, 1f);
				GL11.glVertex3f(0f, DISPLAY_HEIGHT, 1f);
				GL11.glEnd();
				*/

				// Text
				GL11.glEnable(GL11.GL_TEXTURE_2D);
				GL11.glColor4f(1f, 1f, 1f, 1f);
				GL11.glBegin(GL11.GL_QUADS);
				GL11.glTexCoord2f(0f, 1f);
				GL11.glVertex3f(0f, DISPLAY_HEIGHT-RENDER_SIZE, 1f);
				GL11.glTexCoord2f(1f, 1f);
				GL11.glVertex3f(RENDER_SIZE, DISPLAY_HEIGHT-RENDER_SIZE, 1f);
				GL11.glTexCoord2f(1f, 0f);
				GL11.glVertex3f(RENDER_SIZE, DISPLAY_HEIGHT, 1f);
				GL11.glTexCoord2f(0f, 0f);
				GL11.glVertex3f(0f, DISPLAY_HEIGHT, 1f);
				GL11.glEnd();
				Display.update();
}
long total_time = System.currentTimeMillis() - start_time;
System.out.println("total_time = " + total_time);

			}
			Display.destroy();
		} catch (Exception t) {
			t.printStackTrace();
		}
	}
 

@BeforeClass
public void createDisplay() throws LWJGLException {
    Display.setDisplayMode(new DisplayMode(1, 1));
    Display.create();
}