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Method and system for identifying drawing primitives for selective transmission to a remote display

A primitive and remote technology, applied in the direction of transmission system, digital output to display device, input/output process of data processing, etc., can solve problems such as large network bandwidth

Active Publication Date: 2010-10-27
VMWARE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even assuming that differences in the display data (rather than the entire buffer) can be identified and further compressed by encoding techniques before transmission, may still require considerable network bandwidth

Method used

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  • Method and system for identifying drawing primitives for selective transmission to a remote display
  • Method and system for identifying drawing primitives for selective transmission to a remote display
  • Method and system for identifying drawing primitives for selective transmission to a remote display

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Embodiment Construction

[0017] figure 1 A block diagram of a remote desktop server according to one embodiment of the invention is depicted. The remote desktop server 100 can be constructed on a desktop computer, a portable computer, or a server-class hardware platform 102 such as an x86 architecture platform. Such a hardware platform may include CPU 104, RAM 106, network adapter 108 (NIC 108), hard drive 110, and other I / O devices such as, but not limited to, a mouse and keyboard (in figure 1 not shown).

[0018] A virtualization software layer, hereinafter also referred to as a hypervisor 124 , is installed on top of the hardware platform 102 . The hypervisor 124 supports a virtual machine execution space 126 in which multiple virtual machines (VMs 128 1 -128 N ) can be instantiated and executed at the same time. In one embodiment, each VM 128 1 -128 N Support different users connecting remotely from different client terminals. For VM 128 1 -128 N Each of the hypervisor 124 manages the co...

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PUM

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Abstract

Remote desktop servers include a display encoder that maintains a secondary framebuffer that contains display data to be encoded and transmitted to a remote client display and a list of display primitives effectuating updated display data in the secondary framebuffer. The display encoder submits requests to receive the list of drawing primitives to a video adapter driver that receives and tracks drawing primitives that, when executed, update a primary framebuffer.

Description

[0001] Cross References to Related Applications [0002] The present invention is related to a US patent application entitled "Method and System for Copying a Framebuffer for Transmission to a Remote Display" (Attorney Docket: A336) filed on the same date as this application, which is hereby incorporated by reference. Background technique [0003] Current operating systems typically include a graphics rendering interface layer, which is accessed by applications to render graphics on a display device, such as a monitor. The graphics drawing interface layer provides applications with an application programming interface (API) for drawing, and converts the drawing requests of these applications into a set of drawing commands, and then provides the drawing commands to the video adapter driver. Next, the video adapter receives these drawing commands, converts them into video adapter-specific drawing primitives (primivites) and forwards them to the video adapter (eg, graphics card, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06G09G5/00G06F3/14G06F3/153
CPCG09G2310/04G06F3/1462G06F3/1415G09G2350/00G09G5/003G09G2360/18
Inventor 达斯汀·拜福德安东尼·坎农拉梅什·塔尔兰
Owner VMWARE INC