Manual de Apoio 2010

public void init ( GLAutoDrawable drawable ) {GL2 gl = drawable . getGL (). getGL2 ();// Grayish backgroundgl. glClearColor (0f, 0f, 0f, 0f);}try {InputStream stream = Imaging . class . getResourceAsStream (" horse . tga ");img = TGAImage . read ( stream );bb = img . getData ();stream . close ();} catch ( IOException e) {e. printStackTrace ();}@Overridepublic void display ( GLAutoDrawable drawable ) {GL2 gl = drawable . getGL (). getGL2 ();// Clear the window with current clearing colorgl. glClear ( GL2 . GL_COLOR_BUFFER_BIT | GL2 . GL_DEPTH_BUFFER_BIT );// Armazena a informacao do viewPort lida com glGet// Contem : (x, y, width , height )IntBuffer iViewport = IntBuffer . allocate (4);// Tabela de cores invertida (3 cores * 256 niveis )ByteBuffer invertTable = ByteBuffer . allocate (256 * 3);// Matriz ( convolution kernel ) para efectuar o sharpenFloatBuffer mSharpen = FloatBuffer . wrap ( new float [] {0.0f, -1.0f, 0.0f,-1.0f, 5.0f, -1.0f,0.0f, -1.0f, 0.0 f});// Matriz ( convolution kernel ) para efectuar o embossFloatBuffer mEmboss = FloatBuffer . wrap ( new float [] {2.0f, 0.0f, 0.0f,0.0f, -1.0f, 0.0f,0.0f, 0.0f, -1.0f});// Matriz ( convolution kernel ) para efectuar gaussian blur/*| 1 2 1 || 2 4 2 || 1 2 1 |*/float norm = 16f; // somatorio dos valores da matrizFloatBuffer mGaussian = FloatBuffer . wrap ( new float [] {1f/norm , 2f/norm , 1f/norm ,2f/norm , 4f/norm , 2f/norm ,1f/norm , 2f/norm , 1f/ norm});// Posicao do raster comeca no canto inferior esquerdo por omissaogl. glRasterPos2i (0 , 0);// Ler o estado actual do viewportgl. glGetIntegerv ( GL2 . GL_VIEWPORT , iViewport );// Esticar a imagem para ficar do tamanho do viewport120