GTK Scene Kit

Or the rendering and scene graph API for GTK+.

Useful links

• GSK Demystified

• Scene Graph Kit talk at GUADEC 2014

• GSK bugs

• Rounded rectangles with GL, 1, 2, 3

• Fast rounded rectangle shadows

List of things to do

• Fix bugs
• Write benchmarks
  • Measure relevant rendering operations in terms of: time, CPU use, memory use

• Improve GskProfiler

  • Add more timing and counter API
  • Add more instrumentation points

  • Expose GskProfiler to the GTK+ inspector and to sysprof

  • Improve the GskGLProfiler for more accurate/interesting GPU/GL usage statistics

• Port more widgets to the retained render node API
  • Get feedback from an API use perspective

  • Most important gaps: GtkScrolledWindow, GtkStack, GtkNotebook

• Add APIs to GskRenderNode to make widget conversion possible/efficient:

  • clipping
  • solid colors
  • rounded rectangles

• Add more API to GskRenderNode to implement CSS rendering

• Improve the efficiency of the CSS rendering via GskRenderNode

• Add texture atlases for icon caches, font maps, and other visual assets

• Figure out how to turn a PangoLayout into a glyph run that can be mapped to a glyph atlas and rendered off of the GPU

• Add visual debugging states to GskRenderer like:

  • heat maps for "heavy" render nodes
  • wireframe views for geometry debugging
  • Z offsets views for stacking

• Implement SVG and CSS filters as GskRenderNode rendering operations