Cloud desktop mouse position sensing and mouse operation event management method

Abstract

The invention provides a cloud desktop mouse position sensing and mouse operation event management method, which comprises the following steps of adjusting an original mouse rendering mode when a cloud desktop virtual unit is directly connected by accessing a GPU (Graphics Processing Unit) into a client rendering mode, and transmitting terminal mouse position information, mouse control events and other information to the cloud desktop virtual unit; and meanwhile, when the mouse graphic image in the cloud desktop virtual unit changes according to the application change, notifying the terminal to draw a correct mouse image. Therefore, the problems of mouse movement, mouse position and mouse image display delay in the cloud desktop of the straight-through GPU equipment are solved.

Description

technical field [0001] The present invention relates to the field of virtualization and cloud computing, in particular to a cloud desktop mouse position perception and mouse operation event management method. Background technique [0002] At present, virtualized cloud desktops based on QEMU-KVM are classified according to graphics rendering usage scenarios, mainly including two categories: general office environment and 3D design environment. Graphics cards used for graphics rendering in virtualized cloud desktops mainly include pure virtual graphics cards and physical host GPU pass-through methods. Among them, pure virtual graphics cards are mainly used for conventional graphics display. When using software such as 3D design, physical machines must be used. GPU pass-through method to improve graphics processing performance. [0003] The physical machine GPU used for pass-through is divided into overall GPU pass-through and SR-IOV-based GPU pass-through according to whether...

AI Technical Summary

Problems solved by technology

[0009] When the server-side rendering mode is used, the mouse position and images can be displayed normally, but there is a problem of mobile delay and poor user experience. This is because the transmission method in this rendering mode is limited by the network bandwidth or other transmission processes. The influence of interference factors; when the client-side rendering mode is used, GPU passthrough is used. In this case, the image rendering is a one-time drawing of the background image. As long as the background image does not change, the image does not need to be retransmitted and will be directly displayed on the client. However, when the foreground movement track of the mouse changes, the background image will also change correspondingly, which requires secondary rendering of the background image on the client side, resulting in the problem that the mouse graphics cannot be displayed normally on the terminal.

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