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This applet creates an animated display by continuously summing sine waves into an array and drawing the array on the screen.
The number of frames displayed per second is shown in the upper left corner.
This applet demonstrates that Mac OS X Java is unable to draw indexed color images to the screen as quickly as other versions of Java. It is a test case for a bug report that was submitted to Apple (bug #2831485). It is also available as an ImageJ plugin. ImageJ displays 8 bit, 16 bit and float images in the same way as this applet so it should run faster on OS X when Apple fixes this bug. If Apple is interested in speeding up Java image drawing on OS X the should concentrate on com.apple.mrj.internal.awt.graphics.CGPen.CGDrawImage, where this applet spends 53% of its time and on sun.awt.image.ImageRepresentation.setPixels, where it spends 25% of its time. |
| FPS | System | Viewer |
|---|---|---|
| 539 | Intel-Mac/3.0, OS X | Java 1.5, Applet Viewer |
| 453 | P4/2.8, Win XP | Java 1.4.2, IE 6.0 |
| 321 | P4/3.0, Win XP | AppletViewer, Java 1.4.2 |
| 180 | P4/3.0, Win XP | Microsoft Java, IE 6.0 |
| 84 | G5/2.0x2, Mac OS X | Java 1.4.1, Safari |
| 53 | G5/2.0x2, Mac OS X | Java 1.3.1, Mozilla |
| 52 | P3/400, Win XP | JDK 1.4.2, appletviewer |
| 32 | G4/400, MacOS 9 | MRJ 2.2.5, IE 5.0 |
| 26 | P3/400, Win XP | JDK 1.1.8, appletviewer |
| 16 | G4/400, MacOS X | v10.2.7, Java 1.4.1, Safari |