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Rendering method applied to electronic whiteboard, and electronic whiteboard

An electronic whiteboard and application program technology, applied in the direction of user interface execution, electronic digital data processing, data processing input/output process, etc., can solve the problems of slow rendering speed, reduce writing delay, optimize performance, and reduce rendering time The effect of time spent

Inactive Publication Date: 2018-02-09
HISENSE VISUAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of slow rendering speed in electronic whiteboards in the prior art, the present invention discloses a rendering method applied to electronic whiteboards and electronic whiteboards through the following embodiments

Method used

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  • Rendering method applied to electronic whiteboard, and electronic whiteboard
  • Rendering method applied to electronic whiteboard, and electronic whiteboard
  • Rendering method applied to electronic whiteboard, and electronic whiteboard

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Embodiment Construction

[0059] In order to solve the problem of the slow rendering speed of the electronic whiteboard in the prior art, the present invention discloses a rendering method applied to the electronic whiteboard and the electronic whiteboard through the following embodiments.

[0060] The first embodiment of the present invention discloses a rendering method applied to an electronic whiteboard. see figure 2 As shown in the schematic diagram of the workflow, the rendering method applied to the electronic whiteboard disclosed by the embodiment of the present invention includes the following steps:

[0061] Step S11 , performing a synthesis operation on each layer in the electronic whiteboard to obtain a synthesized original picture, and storing the original picture in a graphics buffer.

[0062] In the electronic whiteboard, it often contains multiple layers, for example, the screen layer (that is, the layer where the line drawing area of ​​the electronic whiteboard is located) and the to...

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Abstract

Embodiments of the invention disclose a rendering method applied to an electronic whiteboard, and the electronic whiteboard. The method comprises the steps of firstly performing synthesis operation onall graphic layers in the electronic whiteboard to obtain a synthesized original picture, and storing the original picture in a graph buffer area; secondly copying the original picture to a native layer of the electronic whiteboard, and drawing a corresponding graph in the to-be-processed picture according to touch operation after the touch operation of a user on the electronic whiteboard is received, wherein the original picture in the native layer is the to-be-processed picture; and thirdly according to the graph drawn in the to-be-processed picture, updating the original picture in the graph buffer area. According to the scheme disclosed by the method, the rendering of the electronic whiteboard can be realized and the interaction with a SurfaceFlinger service is not required; and the graphic layers are synthesized by the SurfaceFlinger service. Therefore, compared with the prior art, the scheme disclosed by the method has the advantages that the time for rendering the electronic whiteboard can be shortened and the rendering speed of the electronic whiteboard is increased.

Description

technical field [0001] The present application relates to the technical field of terminal equipment, in particular to a rendering method applied to an electronic whiteboard and the electronic whiteboard. Background technique [0002] The electronic whiteboard is a new type of teaching media. During use, the user can touch the screen of the electronic whiteboard. The electronic whiteboard renders according to the user's touch, generates a corresponding view, and displays the view through the screen. , so that various participants in the teaching process can see the view. Since electronic whiteboards can replace traditional blackboards and projectors, they are increasingly used. [0003] In the prior art, the electronic whiteboard usually adopts the following methods when rendering, see figure 1 As shown in the flowchart, when the user performs a touch operation on the screen of the electronic whiteboard, through step S101, the electronic whiteboard collects the coordinates ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/451G06F3/0488
CPCG06F3/0488
Inventor 李保成张庆涛张振宝程晋于洪
Owner HISENSE VISUAL TECH CO LTD
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