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    Method of and apparatus for displaying an output surface in data processing systems
    2.
    发明授权
    Method of and apparatus for displaying an output surface in data processing systems 有权

    公开(公告)号：US10235738B2

    公开(公告)日：2019-03-19

    申请号：US15103070

    申请日：2014-12-11

    Applicant: ARM LIMITED

    Inventor： Daren Croxford ,  Tom Cooksey ,  Lars Ericsson

    IPC: G06T1/60 ,  G09G5/393 ,  G09G5/02 ,  G09G5/14 ,  G09G5/36

    Abstract: A display controller provides an output frame to a display for display by sending respective output surface regions that together form the output frame, each respective region of the output surface being generated from a respective region or regions of one or more input surfaces, to the display. When a new version of an output surface region is generated, the display controller determines whether the output surface region has been unchanged for a period, and if it has, then stores the generated output surface region in a frame buffer. Then, for the subsequent frame, checks are performed to see if the output surface region could have changed. If there is no change the stored version of the output surface region is reused, but if there is a change in the output surface region, the output surface region is regenerated.

    Method and apparatus for generating an output surface from one or more input surfaces in data processing systems
    3.
    发明授权
    Method and apparatus for generating an output surface from one or more input surfaces in data processing systems 有权
    用于从数据处理系统中的一个或多个输入表面产生输出表面的方法和装置

    公开(公告)号：US09182934B2

    公开(公告)日：2015-11-10

    申请号：US14032481

    申请日：2013-09-20

    Applicant: ARM LIMITED

    Inventor： Daren Croxford ,  Tom Cooksey ,  Lars Ericsson

    IPC: G09G5/00 ,  G06F3/14 ,  G06F3/01

    CPC classification number: G06F3/14 ,  G06F1/3265 ,  G06F3/017 ,  G09G3/003 ,  G09G5/393 ,  G09G2350/00 ,  G09G2360/122 ,  Y02D10/153

    Abstract: In a data processing system, an output surface, such as frame to be displayed, is generated as a plurality of respective regions with each respective region of the output surface being generated from a respective region or regions of one or more input surfaces. When a new version of the output surface is to be generated 80, for each region of the output surface it is determined which region or regions of the input surface or surfaces contribute to the region of the output surface 84 and then checked whether the contributing region or regions of the input surface or surfaces have changed since the previous version of the output surface region was generated 85. If there has been a change in the contributing region or regions of the input surface or surfaces since the previous version of the region in the output surface was generated 86, the region of the output surface is regenerated 87.

    Abstract translation: 在数据处理系统中，产生要显示的帧的输出表面作为多个相应区域，其中输出表面的每个相应区域是从一个或多个输入表面的相应区域或区域产生的。 当要生成输出表面的新版本80时，对于输出表面的每个区域，确定输入表面或表面的哪些区域或区域对输出表面84的区域贡献，然后检查贡献区域 或输入表面或表面的区域已经改变，因为输出表面区域的先前版本已经被生成85.如果输入表面或表面的贡献区域或区域已经发生变化， 产生输出表面86，输出面的区域再生87。

    DATA PROCESSING SYSTEMS
    4.
    发明申请
    DATA PROCESSING SYSTEMS 审中-公开

    公开(公告)号：US20180336065A1

    公开(公告)日：2018-11-22

    申请号：US16062952

    申请日：2016-06-15

    Applicant: Arm Limited

    Inventor： Sam Martin ,  Tom Cooksey ,  Bobby Batacharia

    IPC: G06F9/48 ,  G06F9/50 ,  G06F9/54 ,  G06T1/20

    Abstract: 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).

    Method of and apparatus for generating an encoded frame
    5.
    发明授权
    Method of and apparatus for generating an encoded frame 有权

    公开(公告)号：US10063870B2

    公开(公告)日：2018-08-28

    申请号：US15304301

    申请日：2015-04-10

    Applicant: ARM LIMITED

    Inventor： Daren Croxford ,  Tom Cooksey ,  David Mansell

    IPC: H04N19/40 ,  H04N19/172 ,  H04N19/176 ,  H04W84/12

    CPC classification number: H04N19/40 ,  H04N19/172 ,  H04N19/176 ,  H04W84/12

    Abstract: The technology described herein relates to a method of generating an encoded output video frame for transmission to an electronic display in which an encoded source video frame is decoded to obtain a decoded source video frame 200a, the decoded source video frame 200a is processed to obtain an input video frame 200c, and the input video frame 200c is encoded to obtain an encoded output video frame for transmission. The method comprises comparing a region of an input video frame 200c with a region of a decoded source video frame 200a from which decoded source video frame the input video frame has been obtained, to determine if the region of the decoded source video frame 200a is similar to the region of the input video frame 200c, and if it is determined that the region of the decoded source video frame 200a is similar to the region of the input video frame 200c, using a region of the encoded source video frame that corresponds to the region of the decoded source video frame as a region of the encoded output video frame for transmission that corresponds to the region of the input video frame.

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