Window Back Buffer Allocation for Multi-Display Coherence
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Buffered window systems struggle to maintain a coherent and crisp user interface across output devices with varying characteristics, often resulting in blurry images due to downscaling or up-sampling, as they do not allocate window back buffers according to the specific characteristics of each display device.
Innovation Solution
The method involves rendering into separate window back buffers allocated based on the characteristics of each output device, allowing each device to render at its maximum capability while maintaining a seamless user interface, with the option of creating a fallback buffer for quick rendering and dynamic allocation of buffers in response to events like window movement or display changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a single window back buffer is used for multiple displays with different resolutions, then memory usage is reduced, but image quality deteriorates due to downscaling or up-sampling
Solution Approach 1:
The patent divides the single window back buffer into multiple separate buffers, with each buffer dedicated to a specific display device. This segmentation allows each display to receive rendered content at its native resolution without scaling, thereby maintaining image quality while using separate memory allocations for each display.
Solution Approach 2:
The patent implements local quality by allocating and rendering window back buffers according to the specific characteristics of each display device. Each display receives content optimized for its resolution and capabilities, allowing high-resolution displays to receive crisp content while lower-resolution displays receive appropriately scaled content, thus maintaining optimal image quality for each local display.
2Manufacturing precision
If window back buffers are allocated according to each display's characteristics, then image quality is maintained, but device complexity increases
Solution Approach 1:
The patent uses copying by creating separate window back buffers for each display device, where each buffer is a copy or independent instance optimized for that specific display. This allows the system to maintain image quality through resolution-appropriate rendering while managing complexity through standardized buffer creation and allocation patterns.
Solution Approach 2:
The patent applies parameter changes by dynamically adjusting buffer allocation and rendering parameters based on display characteristics. The system modifies buffer size, resolution, and rendering parameters according to each display's capabilities, enabling high image quality while managing complexity through automated parameter adaptation rather than manual configuration.
3Adaptability or versatility
If displays are forced to scale to match the lowest resolution display, then compatibility is improved, but image quality deteriorates on high resolution displays
Solution Approach 1:
The patent segments the rendering process into separate operations for each display device, allowing each display to be rendered at its native resolution independently. This eliminates the need to scale all displays to match the lowest resolution, thereby maintaining image quality on high-resolution displays while preserving compatibility through separate rendering paths.
Solution Approach 2:
The patent implements local quality by rendering content at the optimal resolution for each specific display device rather than forcing uniform scaling. Each display receives content tailored to its resolution capabilities, allowing high-resolution displays to maintain crisp image quality while lower-resolution displays receive appropriately optimized content, thus eliminating the compromise of scaling all displays to the lowest resolution.
Data Source
AI summary
Exemplary embodiments of methods and apparatuses to provide a coherent user interface across output devices having various characteristics are described. Rendering into a first window back buffer is performed to output a window on a first output device having first characteristics, and rendering into a second window back buffer is performed to display the window on a second output device having second characteristics. Pixel values of the window outputted on the first output device are stored in the first window back buffer, and the pixel values of the window outputted on the second output device are stored in the second window back buffer. The size of the first window back buffer is associated with the first characteristics of the first output device, and the size of the second window back buffer is associated with the second characteristics of the second output device.