专利名称：VIRTUAL GRAPHICS DEVICE DRIVER发明人：REDMAN, David J.,MIN, Changki,CHURCHILL,
Philip J.,SHEPPARD, Adrian T.,LEECH, DavidA.,SAHASRABUDDHE, Unmesh,HENDRY,Ian,BRASFIELD, Eve
申请号：EP10723871.9申请日：20100519公开号：EP2446353A1公开日：20120502
摘要：Systems and methods are disclosed to enable switching of graphics processingunit (GPU) resources based on different factors. Embodiments include a virtual graphicsdriver as an interface between GPU drivers and the applications or graphics frameworkexecuting on an electronic device. The virtual graphics driver may switch GPU resourcesfrom a first GPU to a second GPU by routing function calls to the first GPU or the secondGPU. The switching of GPU resources may be based on power management, systemevents such as hot-plug events, load management, user requests, any other factor, or anycombination thereof. In some embodiments, a virtual frame buffer driver is provided thatinterfaces with the frame buffer of the GPU and provides a virtual view of the framebuffer to manage additional system application programming interfaces (APIs) during theswitch.
申请人：Apple Inc.
地址：1 Infinite Loop Mail Stop 3-PAT Cupertino, California 95014 US
国籍：US
代理机构：Barnfather, Karl Jon
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