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1. 发明申请

WO2017103590A1 DATA PROCESSING SYSTEM USING EARLIEST DEADLINE FIRST AND ASYNCHRONOUS TIME WARPING 审中-公开
标题翻译：数据处理系统使用最早的截止时间和异步时间翘曲
公开(公告)号：WO2017103590A1
公开(公告)日：2017-06-22
申请号：PCT/GB2016/053941
申请日：2016-12-15
申请人： ARM LIMITED
发明人： MARTIN, Sam , COOKSEY, Tom , BATACHARIA, Bobby
IPC分类号： G06F9/48
CPC分类号： G06F9/4887
摘要： When performing "time warp slice" rendering for a virtual reality display, the application rendering (30) of the images required for the application that requires the virtual reality display is synchronised (35) to the display frame rate and treated as a "normal" priority task (51) in terms of its scheduling on a host processor. The time warp slice rendering (50) to render the time warp "slices" into the display buffer (21) of the display (4) for scanning out (23) as the display panel is being refreshed is effected as a "real time" priority task (58). To do this, the rendering task setup processing that must be performed on the host processor for that rendering task is scheduled using an earliest deadline first scheduling policy and is synchronised (52) to specific, recurring display events (53) that allow the "real time" priority time warp slice rendering task setup processing on the host processor to be triggered at specific points in the scan out period (23) of the display (4).
摘要翻译：当执行“时间扭曲片”时，为虚拟现实显示器渲染时，需要虚拟现实显示的应用所需的图像的应用渲染（30）与显示帧速率同步（35）并且被视为“正常” 优先级任务（51）就其在主处理器上的调度而言。时间扭曲片段呈现（50）以呈现时间扭曲“片段” 进入显示器（4）的显示缓冲器（21）以在显示面板刷新时扫描出（23）作为“实时” 优先任务（58）。为此，必须在主处理器上为该渲染任务执行的渲染任务设置处理使用最早的最终期限第一调度策略进行调度并且被同步（52）到特定的循环显示事件（53），该事件允许“ 实时“ 在显示器（4）的扫描输出周期（23）的特定点触发主处理器上的优先时间扭曲片断渲染任务设置处理。

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