Graphics Composition Collection

The Graphics Composition collection is a key part of ScreenPlay. The collection is made up of components that are concerned with composition. This is the process of putting together the output elements from various different sources to create the display that the viewer sees on the screen.

Variant: ScreenPlay. Target audience: Device creators.

This section is aimed at device creators and system implementers. Although some of the overview material may be of general interest to application developers, graphics composition is handled internally and is not of direct relevance to normal application development.

Figure 1. The Graphics Composition collection

• Graphics Composition Collection Overview
  This topic provides an introduction to the Graphics Composition collection.
• Graphics Composition Concepts
  This section covers some important graphics composition topics, such as scene elements (sometimes known as layers) and surfaces.
• OpenWF Composition
  This section describes the OpenWF Composition (OpenWF-C) components. OpenWF-C is an open standard for layered graphics composition developed by the Khronos Group.
• Surface Update Component
  The Surface Update component provides a communication mechanism between the composition engine and its clients.