Graphics Object Caching with Dynamic Property Updates
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Solution Overview
Problem
Conventional graphics rendering systems face inefficiencies when rendering objects with frequently changing properties, as they often require recreating the cached display list, leading to increased processing overhead and delays in updating the graphics on the display device.
Innovation Solution
A method and system where a display device stores a first set of properties describing how to draw graphics objects, updates these properties in response to changes, and processes the display list with the updated properties to efficiently present the changed graphics objects without recreating the cached display list.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cached display list is recreated when properties change, then the graphics object can be updated with new properties, but the processing overhead increases and drawing performance decreases
Solution Approach 1:
The patent segments the property management system into two distinct parts: (1) a cached display list that remains unchanged and continues to define the graphics object's structure, and (2) a separate property storage area that holds the current state of properties. This segmentation allows property updates to occur independently without invalidating the cached display list, thus maintaining drawing performance while ensuring accurate property representation.
Solution Approach 2:
The patent performs preliminary actions by pre-defining the graphics object's structure in the cached display list before properties may change. The display list is created in advance and cached, establishing a stable foundation that can accommodate future property changes without requiring recreation. This preliminary structuring enables fast updates when properties change, as only the property values need to be updated, not the entire display list.
2Loss of information
If the cached display list is recreated when properties change, then the graphics object reflects current properties, but processing time increases
Solution Approach 1:
The patent separates property storage from the display list structure, creating independent segments that can be updated separately. When properties change, only the property segment needs updating while the display list segment remains intact and cached. This segmentation eliminates the time-consuming process of recreating the entire display list while ensuring property state accuracy is maintained through dedicated property update mechanisms.
Solution Approach 2:
The patent uses copying by maintaining a cached copy of the display list that can be processed independently of property changes. The property information is effectively copied or referenced separately, allowing the cached display list to be processed without waiting for property updates. This copying approach ensures the graphics object reflects current properties while minimizing processing time through parallel or independent update paths.
3Reliability
If the display list is processed with updated properties, then the graphics object is drawn correctly, but the system complexity increases
Solution Approach 1:
The patent extracts property management from the display list processing workflow. Properties are taken out and stored separately from the cached display list, creating an independent property management subsystem. This extraction simplifies the main rendering path by allowing the display list to be processed as before, while property updates occur in a separate, managed manner. The separation reduces system complexity by avoiding the need to integrate property validation and updates into the core display list processing pipeline.
Solution Approach 2:
The patent introduces an intermediary mechanism that bridges the cached display list and the property storage area. This intermediary allows the display list to reference property values without directly containing them, enabling correct graphics rendering while maintaining simple, independent management of each component. The intermediary layer handles the coordination between structure definition and property values, reducing overall system complexity through clear separation of concerns.
Data Source
AI summary
A display device may be operable to create a display list during rendering of a graphics object. The display device may store a set of properties of the graphics object, where the set of properties may describe how the graphics object is to be drawn on the display device. When one or more property states associated with the stored set of properties are changed, the display device may update the stored set of properties based on the property state change(s). The display device may process, utilizing the updated stored set of properties, the display list to cause a graphics module in the display device to present the graphics object, in the changed property state(s), on the display device. The set of properties may comprise translucency property and/or transform property. The transform property may comprise information on position, rotation and/or scale associated with the graphics object.