Fixed Issue 173: Adjust gamma, brightness and contrast

Added com.sun.opengl.util.Gamma supporting adjusting of gamma,
brightness, and contrast. API and implementation derived from code in
the LWJGL project. Added demos.gamma.TestGamma demo illustrating how
to use the APIs. Tested on Linux, Mac OS X and Windows. No Solaris
support at this time, although future Solaris releases, being based on
the Xorg server, will probably have support for the required
XF86VidMode extension.


git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/../svn-server-sync/jogl-demos/trunk@167 3298f667-5e0e-4b4a-8ed4-a3559d26a5f4

1 files changed, 99 insertions, 0 deletions

diff --git a/src/demos/gamma/TestGamma.java b/src/demos/gamma/TestGamma.java
new file mode 100755
index 0000000..17fb365
--- /dev/null
+++ b/src/demos/gamma/TestGamma.java
@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2005 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.gamma;
+
+import java.awt.*;
+import java.awt.event.*;
+
+import javax.media.opengl.*;
+import com.sun.opengl.util.*;
+
+import demos.gears.*;
+
+public class TestGamma {
+  private static void usage() {
+    System.out.println("Usage: java TestGamma [gamma value] [brightness value] [contrast value]");
+    System.exit(1);
+  }
+
+  public static void main(String[] args) {
+    if (args.length != 3) {
+      usage();
+    }
+
+    float gamma = 1.0f;
+    float brightness = 0.0f;
+    float contrast = 0.0f;
+    try {
+      gamma = Float.parseFloat(args[0]);
+      brightness = Float.parseFloat(args[1]);
+      contrast = Float.parseFloat(args[2]);
+    } catch (NumberFormatException e) {
+      usage();
+    }
+
+    Frame frame = new Frame("Gear and Gamma Demo");
+    GLCanvas canvas = new GLCanvas();
+    canvas.addGLEventListener(new Gears());
+    frame.add(canvas);
+    frame.setSize(300, 300);
+    final Animator animator = new Animator(canvas);
+    frame.addWindowListener(new WindowAdapter() {
+        public void windowClosing(WindowEvent e) {
+          // Run this on another thread than the AWT event queue to
+          // make sure the call to Animator.stop() completes before
+          // exiting
+          new Thread(new Runnable() {
+              public void run() {
+                animator.stop();
+                Gamma.resetDisplayGamma();
+                System.exit(0);
+              }
+            }).start();
+        }
+      });
+    frame.show();
+    animator.start();
+    
+    if (!Gamma.setDisplayGamma(gamma, brightness, contrast)) {
+      System.err.println("Unable to change display gamma, brightness, and contrast");
+    }
+  }
+}