A method and device for realizing acceleration of view sliding display

Abstract

A method and device for accelerating the slide display of a view, which are used for a terminal device. The method comprises: when a view window moves to a new position from an original position on a page, acquiring a page area needing to be displayed into the view window; and judging whether a part of content of the page area is stored in a cache already, and if so, adjusting the division of four cache blocks and the content stored in each cache block. The cache is divided into four cache blocks using a horizontal dividing line and a vertical dividing line; the page area which should be displayed is mapped into the four cache blocks; and such mapping relationship is adjusted dynamically when the view window moves. In this way, not only a part of page content which is rasterized already can be reused, but also troublesome resetting defragmentation cannot be conducted on the cache after the view window has moved, but merely local adjustment to the cache can be conducted every time, thereby avoiding the occurrence of jam and pause when the view window slides, so that the display speed is faster.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a method and device for realizing accelerated view sliding display. Background technique [0002] Drawing a page such as a web page into the view window of a terminal device (such as a mobile phone, a computer, etc.) generally requires two steps: first rasterize the page content into a bitmap, and then synthesize it on the screen. Rasterization is a very time-consuming process. In order to improve the display speed, the design of the sliding view window is usually used at present. Instead of drawing the entire page, only a page area in the page is drawn, that is, only this part of the page area in the view window area is drawn on the screen. When the user slides the view window up, down, left, and right by fingers (or mouse, etc.), the page area displayed in the view window is changed correspondingly along with the sliding. [0003] Since drawing the pages in t...

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Problems solved by technology

[0004] In the process of implementing the present invention, the inventor found that although the solution in the prior art can reduce part of the workload and improve the drawing speed through the reuse of rasterization results, however, when the movement of the view window exceeds the boundary of the cache, the cache The content needs to be reset and sorted out, which will involve image copying and other operations, but it will take a certain amount of time, causing the view window to freeze during the moving process

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