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-rw-r--r--src/demos/testContextSharing/TestContextSharing.java270
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-/*
- * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * - Redistribution of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistribution in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * Neither the name of Sun Microsystems, Inc. or the names of
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * This software is provided "AS IS," without a warranty of any kind. ALL
- * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
- * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
- * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
- * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
- * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
- * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
- * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
- * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
- * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
- * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
- * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
- *
- * You acknowledge that this software is not designed or intended for use
- * in the design, construction, operation or maintenance of any nuclear
- * facility.
- *
- * Sun gratefully acknowledges that this software was originally authored
- * and developed by Kenneth Bradley Russell and Christopher John Kline.
- */
-
-package demos.testContextSharing;
-
-import java.awt.*;
-import java.util.*;
-
-import javax.media.opengl.*;
-
-/** A simple demonstration of sharing of display lists between drawables. */
-
-public class TestContextSharing {
- private int gearDisplayList;
- private Frame delayedFrame;
-
- public static void main(String[] args) {
- new TestContextSharing().run(args);
- }
-
- public void run(String[] args) {
- GLCanvas canvas1 = new GLCanvas();
- canvas1.addGLEventListener(new Listener());
- canvas1.setSize(256, 256);
- Frame frame1 = new Frame("Canvas 1");
- frame1.setLayout(new BorderLayout());
- frame1.add(canvas1, BorderLayout.CENTER);
-
- GLCanvas canvas2 = new GLCanvas(null, null, canvas1.getContext(), null);
- canvas2.addGLEventListener(new Listener());
- canvas2.setSize(256, 256);
- Frame frame2 = new Frame("Canvas 2");
- frame2.setLayout(new BorderLayout());
- frame2.add(canvas2, BorderLayout.CENTER);
-
- Random random = new Random(System.currentTimeMillis());
- Frame frame;
- if (random.nextBoolean()) {
- frame = frame1;
- delayedFrame = frame2;
- } else {
- frame = frame2;
- delayedFrame = frame1;
- }
- System.err.println("Showing first frame");
- frame.pack();
- frame.show();
- new Thread(new Runnable() {
- public void run() {
- try {
- Thread.sleep(1000);
- } catch (InterruptedException e) {
- }
- System.err.println("Showing other frame");
- delayedFrame.pack();
- delayedFrame.show();
- delayedFrame.setLocation(256, 0);
- }
- }).start();
- }
-
- class Listener implements GLEventListener {
- public void init(GLAutoDrawable drawable) {
- drawable.setGL(new DebugGL(drawable.getGL()));
-
- GL gl = drawable.getGL();
-
- float pos[] = { 5.0f, 5.0f, 10.0f, 0.0f };
- gl.glLightfv(GL.GL_LIGHT0, GL.GL_POSITION, pos, 0);
- gl.glEnable(GL.GL_CULL_FACE);
- gl.glEnable(GL.GL_LIGHTING);
- gl.glEnable(GL.GL_LIGHT0);
- gl.glEnable(GL.GL_DEPTH_TEST);
-
- initializeDisplayList(gl);
-
- gl.glEnable(GL.GL_NORMALIZE);
- }
-
- public void display(GLAutoDrawable drawable) {
- GL gl = drawable.getGL();
-
- gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
-
- System.err.println("Drawing display list " + gearDisplayList);
- gl.glCallList(gearDisplayList);
- }
-
- public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {
- GL gl = drawable.getGL();
-
- float h = (float)height / (float)width;
-
- gl.glMatrixMode(GL.GL_PROJECTION);
- gl.glLoadIdentity();
- gl.glFrustum(-1.0f, 1.0f, -h, h, 5.0f, 60.0f);
- gl.glMatrixMode(GL.GL_MODELVIEW);
- gl.glLoadIdentity();
- gl.glTranslatef(0.0f, 0.0f, -40.0f);
- }
-
- // Unused routines
- public void displayChanged(GLAutoDrawable drawable, boolean modeChanged, boolean deviceChanged) {}
- }
-
- private synchronized void initializeDisplayList(GL gl) {
- if (gearDisplayList != 0) {
- return;
- }
-
- gearDisplayList = gl.glGenLists(1);
- gl.glNewList(gearDisplayList, GL.GL_COMPILE);
- float red[] = { 0.8f, 0.1f, 0.0f, 1.0f };
- gl.glMaterialfv(GL.GL_FRONT, GL.GL_AMBIENT_AND_DIFFUSE, red, 0);
- gear(gl, 1.0f, 4.0f, 1.0f, 20, 0.7f);
- gl.glEndList();
- }
-
- private void gear(GL gl,
- float inner_radius,
- float outer_radius,
- float width,
- int teeth,
- float tooth_depth)
- {
- int i;
- float r0, r1, r2;
- float angle, da;
- float u, v, len;
-
- r0 = inner_radius;
- r1 = outer_radius - tooth_depth / 2.0f;
- r2 = outer_radius + tooth_depth / 2.0f;
-
- da = 2.0f * (float) Math.PI / teeth / 4.0f;
-
- gl.glShadeModel(GL.GL_FLAT);
-
- gl.glNormal3f(0.0f, 0.0f, 1.0f);
-
- /* draw front face */
- gl.glBegin(GL.GL_QUAD_STRIP);
- for (i = 0; i <= teeth; i++)
- {
- angle = i * 2.0f * (float) Math.PI / teeth;
- gl.glVertex3f(r0 * (float)Math.cos(angle), r0 * (float)Math.sin(angle), width * 0.5f);
- gl.glVertex3f(r1 * (float)Math.cos(angle), r1 * (float)Math.sin(angle), width * 0.5f);
- if(i < teeth)
- {
- gl.glVertex3f(r0 * (float)Math.cos(angle), r0 * (float)Math.sin(angle), width * 0.5f);
- gl.glVertex3f(r1 * (float)Math.cos(angle + 3.0f * da), r1 * (float)Math.sin(angle + 3.0f * da), width * 0.5f);
- }
- }
- gl.glEnd();
-
- /* draw front sides of teeth */
- gl.glBegin(GL.GL_QUADS);
- for (i = 0; i < teeth; i++)
- {
- angle = i * 2.0f * (float) Math.PI / teeth;
- gl.glVertex3f(r1 * (float)Math.cos(angle), r1 * (float)Math.sin(angle), width * 0.5f);
- gl.glVertex3f(r2 * (float)Math.cos(angle + da), r2 * (float)Math.sin(angle + da), width * 0.5f);
- gl.glVertex3f(r2 * (float)Math.cos(angle + 2.0f * da), r2 * (float)Math.sin(angle + 2.0f * da), width * 0.5f);
- gl.glVertex3f(r1 * (float)Math.cos(angle + 3.0f * da), r1 * (float)Math.sin(angle + 3.0f * da), width * 0.5f);
- }
- gl.glEnd();
-
- /* draw back face */
- gl.glBegin(GL.GL_QUAD_STRIP);
- for (i = 0; i <= teeth; i++)
- {
- angle = i * 2.0f * (float) Math.PI / teeth;
- gl.glVertex3f(r1 * (float)Math.cos(angle), r1 * (float)Math.sin(angle), -width * 0.5f);
- gl.glVertex3f(r0 * (float)Math.cos(angle), r0 * (float)Math.sin(angle), -width * 0.5f);
- gl.glVertex3f(r1 * (float)Math.cos(angle + 3 * da), r1 * (float)Math.sin(angle + 3 * da), -width * 0.5f);
- gl.glVertex3f(r0 * (float)Math.cos(angle), r0 * (float)Math.sin(angle), -width * 0.5f);
- }
- gl.glEnd();
-
- /* draw back sides of teeth */
- gl.glBegin(GL.GL_QUADS);
- for (i = 0; i < teeth; i++)
- {
- angle = i * 2.0f * (float) Math.PI / teeth;
- gl.glVertex3f(r1 * (float)Math.cos(angle + 3 * da), r1 * (float)Math.sin(angle + 3 * da), -width * 0.5f);
- gl.glVertex3f(r2 * (float)Math.cos(angle + 2 * da), r2 * (float)Math.sin(angle + 2 * da), -width * 0.5f);
- gl.glVertex3f(r2 * (float)Math.cos(angle + da), r2 * (float)Math.sin(angle + da), -width * 0.5f);
- gl.glVertex3f(r1 * (float)Math.cos(angle), r1 * (float)Math.sin(angle), -width * 0.5f);
- }
- gl.glEnd();
-
- /* draw outward faces of teeth */
- gl.glBegin(GL.GL_QUAD_STRIP);
- for (i = 0; i < teeth; i++)
- {
- angle = i * 2.0f * (float) Math.PI / teeth;
- gl.glVertex3f(r1 * (float)Math.cos(angle), r1 * (float)Math.sin(angle), width * 0.5f);
- gl.glVertex3f(r1 * (float)Math.cos(angle), r1 * (float)Math.sin(angle), -width * 0.5f);
- u = r2 * (float)Math.cos(angle + da) - r1 * (float)Math.cos(angle);
- v = r2 * (float)Math.sin(angle + da) - r1 * (float)Math.sin(angle);
- len = (float)Math.sqrt(u * u + v * v);
- u /= len;
- v /= len;
- gl.glNormal3f(v, -u, 0.0f);
- gl.glVertex3f(r2 * (float)Math.cos(angle + da), r2 * (float)Math.sin(angle + da), width * 0.5f);
- gl.glVertex3f(r2 * (float)Math.cos(angle + da), r2 * (float)Math.sin(angle + da), -width * 0.5f);
- gl.glNormal3f((float)Math.cos(angle), (float)Math.sin(angle), 0.0f);
- gl.glVertex3f(r2 * (float)Math.cos(angle + 2 * da), r2 * (float)Math.sin(angle + 2 * da), width * 0.5f);
- gl.glVertex3f(r2 * (float)Math.cos(angle + 2 * da), r2 * (float)Math.sin(angle + 2 * da), -width * 0.5f);
- u = r1 * (float)Math.cos(angle + 3 * da) - r2 * (float)Math.cos(angle + 2 * da);
- v = r1 * (float)Math.sin(angle + 3 * da) - r2 * (float)Math.sin(angle + 2 * da);
- gl.glNormal3f(v, -u, 0.0f);
- gl.glVertex3f(r1 * (float)Math.cos(angle + 3 * da), r1 * (float)Math.sin(angle + 3 * da), width * 0.5f);
- gl.glVertex3f(r1 * (float)Math.cos(angle + 3 * da), r1 * (float)Math.sin(angle + 3 * da), -width * 0.5f);
- gl.glNormal3f((float)Math.cos(angle), (float)Math.sin(angle), 0.0f);
- }
- gl.glVertex3f(r1 * (float)Math.cos(0), r1 * (float)Math.sin(0), width * 0.5f);
- gl.glVertex3f(r1 * (float)Math.cos(0), r1 * (float)Math.sin(0), -width * 0.5f);
- gl.glEnd();
-
- gl.glShadeModel(GL.GL_SMOOTH);
-
- /* draw inside radius cylinder */
- gl.glBegin(GL.GL_QUAD_STRIP);
- for (i = 0; i <= teeth; i++)
- {
- angle = i * 2.0f * (float) Math.PI / teeth;
- gl.glNormal3f(-(float)Math.cos(angle), -(float)Math.sin(angle), 0.0f);
- gl.glVertex3f(r0 * (float)Math.cos(angle), r0 * (float)Math.sin(angle), -width * 0.5f);
- gl.glVertex3f(r0 * (float)Math.cos(angle), r0 * (float)Math.sin(angle), width * 0.5f);
- }
- gl.glEnd();
- }
-}
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