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Drawing method of variable length and width background of vehicle-mounted entertainment system

An entertainment system and width technology, applied in the field of in-vehicle entertainment systems, can solve problems such as low memory consumption, and achieve the effects of improving work efficiency, reducing the time required, and reducing the occupied Flash space.

Active Publication Date: 2016-02-10
HUIZHOU DESAY SV AUTOMOTIVE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the technical problem to be solved by the present invention is a method for drawing the background of variable length and width of the car entertainment system with adjustable length and width, short time for drawing background pictures, and less memory consumption.

Method used

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  • Drawing method of variable length and width background of vehicle-mounted entertainment system
  • Drawing method of variable length and width background of vehicle-mounted entertainment system

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Embodiment Construction

[0022] In order to allow those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described below in conjunction with the accompanying drawings.

[0023] like figure 1 and figure 2 Shown, a kind of drawing method of the background of variable length and width of car entertainment system, described car entertainment system comprises the frame that draws figure based on QT in the embedded operating system WinCE of Microsoft, is used for storing various display used figure files disk file system and memory, including the following steps:

[0024] Step S01, start the in-vehicle entertainment system, and then start the background drawing program of the in-vehicle entertainment system;

[0025] Step S02, the system determines the relevant parameters of the size of the large background image such as length, width, and height, and loads nine image resources required by the background drawing program into t...

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Abstract

The invention discloses a drawing method of a variable length and width background of a vehicle-mounted entertainment system. The vehicle-mounted entertainment system comprises a frame based on a QT drawn graph in Microsoft embedded operation system WinCE, a disk file system which is used for storing various display graph files, and a memory. The drawing method comprises the steps that a background drawing program of the vehicle-mounted entertainment system is started; the size of a large background graph is determined; nine graph resources needed by the background drawing program are loaded into the memory; whether the memory space of the background graph is successfully loaded is determined; and after successful loading, the corresponding background graph is drawn at a corresponding position on a large background graph according to the size of the large background graph. According to the invention, Flash space taken by a background graph resource is reduced; when the background is drawn, the graph loading speed is improved; the work efficiency is improved; time required by background graph drawing is reduced; the system efficiency is improved; and increased crash risk caused by failed memory application is avoided.

Description

technical field [0001] The invention belongs to the field of vehicle entertainment systems, and in particular relates to a drawing method for a background with variable length and width of the vehicle entertainment system. Background technique [0002] With the rapid development of the national economy, people's quality of life has been continuously improved, prompting people to pay more attention to the quality of life and quality, and cars, as a necessary means of transportation for people to go to work, travel, and travel, have also developed rapidly, making People have higher requirements for cars. The rapid development of automobiles promotes the rapid development of the automotive electronics industry, making the vehicle multimedia system technology also wait for a rapid commission, and at the same time face new challenges. [0003] At present, the graphics drawing function of the commonly used vehicle-mounted multimedia host uses Microsoft's embedded operating system...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T11/00
Inventor 怀保胜陈定柱卓文龙陈培权
Owner HUIZHOU DESAY SV AUTOMOTIVE
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