scope:

The present document specifies the extensions to the DVB GEM [1] middleware to enable applications that are aware of frame compatible plano-stereoscopic 3DTV services. This is achieved with a new horizontal 3D profile which can be applied to all GEM targets. The 3D profile extends the display model and presentation APIs, to enable additional 3D display modes and drawing functions, with varying capabilities. For the more capable 3D modes a new drawing API is introduced, which is a stereoscopic extension of the java.awt.Graphics2D API set.

On devices with hardware support for accelerated 3D graphics based on OpenGL ES, the present document specifices an additional 3D mode, which enables the rendering of a 3D volumetric scene to a stereoscopic display. On these devices Open GL ES based drawing is also available for 2D display modes.

NOTE: Although the present document defines the 3D profile for the 1.3 version of the GEM specification, it is also applicable for previous GEM versions.