WinSGL: Software Genlocking for Cost-Effective Display Synchronization under Microsoft Windows

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dc.contributor.authorWaschbüsch, M.en_US
dc.contributor.authorCotting, D.en_US
dc.contributor.authorDuller, M.en_US
dc.contributor.authorGross, M.en_US
dc.contributor.editorAlan Heirich and Bruno Raffin and Luis Paulo dos Santosen_US
dc.date.accessioned2014-01-26T16:30:48Z
dc.date.available2014-01-26T16:30:48Z
dc.date.issued2006en_US
dc.description.abstractThis paper presents the first software genlocking approach for unmodified Microsoft Windows systems, requiring no specialized graphics boards but only a low-cost signal generator as additional hardware. Compared to existing solutions for other operating systems, it does not rely on any real-time extensions or kernel modifications. Its novel design can be divided into two parts: First, an external synchronization signal is transmitted over interrupt lines to a dedicated driver. Second, a user-space application performs the synchronization by inserting or removing lines to the invisible part of the image. Robustness to potential frame losses is achieved through continuous consistent timestamping. Tests yield an accuracy of up to ± ½ line deviation from the external signal and a low CPU load of 2% on current PC systems. Our system has been designed to be compatible with off-the-shelf graphics hardware and digital output devices based on LCD or DLP technology. Our solution can be employed to build cost-effective VR installations such as large tiled and spatially immersive displays using commodity PC clusters.en_US
dc.description.seriesinformationEurographics Symposium on Parallel Graphics and Visualizationen_US
dc.identifier.isbn3-905673-40-1en_US
dc.identifier.issn1727-348Xen_US
dc.identifier.urihttps://doi.org/10.2312/EGPGV/EGPGV06/111-118en_US
dc.publisherThe Eurographics Associationen_US
dc.subjectCategories and Subject Descriptors (according to ACM CCS): I.3.2 [Computer Graphics]: Distributed/network graphics H.5.1 [Information Interfaces and Presentation]: Artificial, augmented, and virtual realitiesen_US
dc.titleWinSGL: Software Genlocking for Cost-Effective Display Synchronization under Microsoft Windowsen_US
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EGPGV06: Eurographics Symposium on Parallel Graphics and Visualization