package demos.es1; import java.nio.*; import javax.media.opengl.*; import javax.media.opengl.glu.*; import com.sun.opengl.impl.egl.*; import com.sun.opengl.util.*; public class RedSquare { public static void main(String[] args) { System.out.println("Basic.main()"); try { System.out.println("GLDrawableFactory.getFactory()"); EGLDrawableFactory factory = (EGLDrawableFactory) GLDrawableFactory.getFactory(); /* System.out.println("Testing getDirectBufferAddress"); factory.testGetDirectBufferAddress(); */ System.out.println("EGLDrawableFactory.initialize()"); factory.initialize(); System.out.println("factory.createExternalGLContext()"); GLContext context = factory.createExternalGLContext(); // OpenGL context is current at this point // The following is a no-op that is only needed to get the // Java-level GLContext object set up in thread-local storage System.out.println("context.makeCurrent()"); context.makeCurrent(); context.setGL(new DebugGL(context.getGL())); GL gl = context.getGL(); GLU glu = new GLU(); //---------------------------------------------------------------------- // Code for GLEventListener.init() // System.out.println("Entering initialization"); // Size OpenGL to Video Surface int width = 800; int height = 480; System.out.println("calling glViewport()"); // gl.glViewport(0, 0, width, height); System.out.println("calling glMatrixMode()"); gl.glMatrixMode(GL.GL_PROJECTION); System.out.println("calling glLoadIdentity()"); gl.glLoadIdentity(); System.out.println("calling gluPerspective()"); glu.gluPerspective(45.0f, (float)width / (float)height, 1.0f, 100.0f); System.out.println("calling glMatrixMode()"); gl.glMatrixMode(GL.GL_MODELVIEW); System.out.println("Intialized matrices"); // Allocate vertex arrays // FloatBuffer colors = BufferUtil.newFloatBuffer(12); // FloatBuffer vertices = BufferUtil.newFloatBuffer(12); // FloatBuffer normals = BufferUtil.newFloatBuffer(12); // FloatBuffer colors = FloatBuffer.wrap(new float[12]); // FloatBuffer vertices = FloatBuffer.wrap(new float[12]); // FloatBuffer normals = FloatBuffer.wrap(new float[12]); // Fill them up // colors.put(0, 1); colors.put( 1, 0); colors.put( 2, 0); // colors.put(3, 1); colors.put( 4, 0); colors.put( 5, 0); // colors.put(6, 1); colors.put( 7, 0); colors.put( 8, 0); // colors.put(9, 1); colors.put(10, 0); colors.put(11, 0); // vertices.put(0, -2); vertices.put( 1, 2); vertices.put( 2, 0); // vertices.put(3, 2); vertices.put( 4, 2); vertices.put( 5, 0); // vertices.put(6, -2); vertices.put( 7, -2); vertices.put( 8, 0); // vertices.put(9, 2); vertices.put(10, -2); vertices.put(11, 0); // normals.put(0, 0); normals.put( 1, 0); normals.put( 2, 1); // normals.put(3, 0); normals.put( 4, 0); normals.put( 5, 1); // normals.put(6, 0); normals.put( 7, 0); normals.put( 8, 1); // normals.put(9, 0); normals.put(10, 0); normals.put(11, 1); // FloatBuffer data = FloatBuffer.wrap(new float[24]); FloatBuffer data = BufferUtil.newFloatBuffer(12 + 16); // Vertices first data.put(0, -2); data.put( 1, 2); data.put( 2, 0); data.put(3, 2); data.put( 4, 2); data.put( 5, 0); data.put(6, -2); data.put( 7, -2); data.put( 8, 0); data.put(9, 2); data.put(10, -2); data.put(11, 0); // Now colors data.put(12, 1); data.put(13, 0); data.put(14, 0); data.put(15, 0); data.put(16, 1); data.put(17, 0); data.put(18, 0); data.put(19, 0); data.put(20, 1); data.put(21, 0); data.put(22, 0); data.put(23, 0); data.put(24, 1); data.put(25, 0); data.put(26, 0); data.put(27, 0); System.out.println("Set up buffers"); int[] vbo = new int[1]; gl.glGenBuffers(1, vbo, 0); gl.glBindBuffer(GL.GL_ARRAY_BUFFER, vbo[0]); gl.glBufferData(GL.GL_ARRAY_BUFFER, (12 + 16) * BufferUtil.SIZEOF_FLOAT, data, GL.GL_STATIC_DRAW); gl.glVertexPointer(3, GL.GL_FLOAT, 0, 0); // gl.glColorPointer(3, GL.GL_FLOAT, 0, 12 * BufferUtil.SIZEOF_FLOAT); gl.glEnableClientState(GL.GL_VERTEX_ARRAY); // gl.glEnableClientState(GL.GL_COLOR_ARRAY); // System.out.println("Vertices' address: 0x" + Integer.toHexString(factory.getDirectBufferAddress(vertices))); // System.out.println("Expected: 0x" + Integer.toHexString(vertices.arrayOffset)); // System.out.println("Colors' address: 0x" + Integer.toHexString(factory.getDirectBufferAddress(colors))); // System.out.println("Expected: 0x" + Integer.toHexString(colors.arrayOffset)); // gl.glNormalPointer(GL.GL_FLOAT, 0, normals); // gl.glEnableClientState(GL.GL_NORMAL_ARRAY); // System.out.println("Normals' address: 0x" + Integer.toHexString(factory.getDirectBufferAddress(normals))); // System.out.println("Expected: 0x" + Integer.toHexString(normals.arrayOffset)); // System.out.println("Set up vertex, color and normal pointers"); System.out.println("Set up vertex and color pointers"); // OpenGL Render Settings gl.glClearColor(0, 0, 0, 1); gl.glClearDepthf(1.0f); gl.glEnable(GL.GL_DEPTH_TEST); System.out.println("Set up clear color and clear depth"); //---------------------------------------------------------------------- // Code for GLEventListener.display() // long startTime = System.currentTimeMillis(); long curTime; while ((System.currentTimeMillis() - startTime) < 10000) { gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT); System.out.println("Cleared buffers"); // Set location in front of camera gl.glLoadIdentity(); gl.glTranslatef(0, 0, -10); System.out.println("Translated"); // Draw a square gl.glDrawArrays(GL.GL_TRIANGLE_STRIP, 0, 4); System.out.println("Drew arrays"); // FIXME -- need an external GLDrawable factory.swapBuffers(); System.out.println("Swapped buffers"); // Process events factory.processEvents(); // Sleep a bit try { Thread.sleep(100); } catch (InterruptedException e) { } } } catch (GLException e) { e.printStackTrace(); } System.exit(0); } }