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• Event handling

  • Dispatch native events on EDT, to avoid potential race conditions when the state is updated both from EDT and toolkit thread. See the full proposal here  

• Graphics devices support

  • Onscreen/offscreen Wayland surface management

  • Adopt OGL pipeline for rendering on Wayland surfaces

  • Implement a new rendering pipeline based on Vulkan (for better performance)

• java.awt.Robot

  • Sending input events

  • Reading screen data (at least current java application windows)

• Client-side decorations for windows

  • Swing internal frames rendering code can be reused

• Hardware acceleration using  Vulkan.

The prototype implementation of the pure Wayland toolkit (JDK-8281970) based on OpneJDK 21 source base can be found in the Wakefield repository (jdk21.0.1-wayland branch). It has two rendering pipelines:

• Pure software loops (enabled by default)
• Hardware-accelerated rendering using Vulkan
  • Accelerated blitting of the resulting frame (enabled by providing -Dsun.java2d.vulkan=True|true)
  • Complete hardware acceleration including the rendering of all graphics primitives  (enabled by providing -Dsun.java2d.vulkan=True|true -Dsun.java2d.vulkan.accelsd=true)

Complete hardware acceleration is not fully supported so far.

java -Dawt.toolkit.name=WLToolkit -Dsun.java2d.vulkan=True J2Ddemo.jar

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