Graphics Processor Context Switching for Avionics Display Partitioning

The patent divides the screen display into multiple independent graphic surfaces, each associated with a specific application. The graphics processor segments the rendering workload by maintaining separate execution contexts for each application, allowing independent management and prioritization of critical versus non-critical displays without interfering with other applications' rendering processes.

The patent implements segmentation by creating distinct graphic surfaces for each application with dedicated execution contexts. This ensures that each application's display partition is independently managed, preventing rendering artifacts and partitioning errors that would occur with shared rendering state, thereby maintaining high display partitioning quality across multiple simultaneous applications.

The patent introduces dynamic prioritization where the graphics processor can adjust the generation priority of different graphic surfaces in real-time. Critical applications can be assigned higher priority to ensure their graphic surfaces are generated and updated more frequently, while non-critical applications maintain rendering completeness at lower update rates, achieving both completeness and responsiveness through dynamic resource allocation.

The patent applies local quality by allocating different levels of rendering resources to different graphic surfaces based on their priority. Critical applications receive higher resource allocation for faster, more complete rendering, while non-critical applications receive reduced but sufficient resources to maintain basic rendering completeness. This localized resource optimization ensures critical responsiveness without completely sacrificing non-critical application functionality.