Image Drawing Synchronization for Smooth Vsync Frame Transitions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Electronic devices experience frame dropping or frame skipping due to the inability to render consecutive frames of images in time, leading to stuttering during display transitions.
Innovation Solution
Implementing an image processing method that utilizes synchronization Vsync periods to perform drawing operations in advance, ensuring completion before the next Vsync signal, and using a texture buffer queue with prioritized buffers to manage image composition and display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electronic device waits for the Vsync signal to arrive before performing drawing operations, then the drawing operation can be performed in the correct timing, but the drawing process may not be completed before the Vsync signal arrives, causing frame dropping and display stuttering
Solution Approach 1:
The patent applies preliminary action by performing the drawing operation before the Vsync signal arrives. Specifically, the electronic device performs drawing operations in advance during the period between receiving the user input and the arrival of the Vsync signal, ensuring that the image is ready for display when needed. This prevents frame dropping and display stuttering by having the drawing completed beforehand rather than waiting until the Vsync signal arrives.
2Productivity
If the electronic device performs drawing operations in advance before the Vsync signal, then the drawing can be completed before display is needed, but the timing coordination becomes more complex
Solution Approach 1:
The patent uses feedback by monitoring the timing between user input, drawing operation completion, and Vsync signal arrival. The system adjusts the drawing operation timing based on feedback from when the Vsync signal is expected to arrive and whether the drawing is completed in time. This feedback mechanism allows the device to perform drawing operations in advance while maintaining proper synchronization, resolving the timing coordination complexity.
Data Source
AI summary
Embodiments of this disclosure provide an image processing method and an electronic device, and relate to the field of image processing, to effectively avoid a problem such as stuttering caused by a relatively long time consumed by an image drawing process. The method includes: receiving a first operation of a user; in response to the first operation, running a first application, and presenting an interface of the first application; receiving a second operation performed by the user in the interface of the first application, where the second operation is a sliding operation; in response to the second operation, performing a first drawing operation in a first synchronization Vsync period to obtain a first image; and in response to the second operation, performing a second drawing operation in the first synchronization Vsync period to obtain a second image.