公开(公告)号：US11200866B1

公开(公告)日：2021-12-14

申请号：US17176767

申请日：2021-02-16

Applicant: QUALCOMM Incorporated

Inventor： Dileep Marchya ,  Sudeep Ravi Kottilingal ,  Srinivas Pullakavi ,  Dhaval Kanubhai Patel ,  Prashant Nukala ,  Nagamalleswararao Ganji ,  Mohammed Naseer Ahmed ,  Mahesh Aia ,  Kalyan Thota ,  Sushil Chauhan

IPC: G06T1/20 ,  G06T1/60 ,  G09G5/00

Abstract: In some aspects, the present disclosure provides a method for generating a frame. The method includes receiving a first fence indicating that a first frame stored in a display processor unit (DPU) buffer has been consumed by a hardware component. The method also includes in response to receiving the first fence, fetching a plurality of layers from an application buffer, the plurality of layers corresponding to a second frame. The method also includes determining to use both a DPU and a graphics processing unit (GPU) to process the plurality of layers for composition of the second frame. The method also includes fetching the first fence from the DPU buffer and generating a second fence.

公开(公告)号：US20160098813A1

公开(公告)日：2016-04-07

申请号：US14504047

申请日：2014-10-01

Applicant: QUALCOMM Incorporated

Inventor： Sudeep Ravi Kottilingal ,  Moinul Khan ,  Colin Christopher Sharp

IPC: G06T1/60 ,  G06F12/10

CPC classification number: G06T1/60 ,  G06F12/1036 ,  G06F12/109 ,  G06F2212/657 ,  G06T1/20 ,  G06T2200/28

Abstract: A transparent format converter (TFC) may determine that a request by at least one processor for graphics data stored in graphics memory is indicative of a request for graphics data in a first data format. The TFC may retrieve the graphics data in a second data format from the graphics memory based at least in part on the request for the graphics data in the graphics memory. The TFC may convert the retrieved graphics data from the second data format to the first data format. The TFC may store the converted graphics data in the first data format into a memory that is accessible by the at least one processor.

Abstract translation: 透明格式转换器（TFC）可以确定由至少一个处理器对存储在图形存储器中的图形数据的请求指示以第一数据格式的图形数据的请求。 至少部分地基于对图形存储器中的图形数据的请求，TFC可以从图形存储器检索第二数据格式的图形数据。 TFC可以将检索到的图形数据从第二数据格式转换为第一数据格式。 TFC可以将转换后的图形数据以第一数据格式存储到由至少一个处理器可访问的存储器中。

公开(公告)号：US08910307B2

公开(公告)日：2014-12-09

申请号：US13715351

申请日：2012-12-14

Applicant: QUALCOMM Incorporated

Inventor： Sudeep Ravi Kottilingal ,  Gary Arthur Ciambella ,  Steven John Halter

IPC: G06F9/06 ,  H04N21/4385 ,  H04N21/426 ,  H04N21/443 ,  H04N21/835 ,  H04N21/4405 ,  G06F21/62 ,  H04N21/44 ,  H04L29/06

CPC classification number: G06F21/62 ,  G06F21/00 ,  H04L63/02 ,  H04N21/42623 ,  H04N21/42653 ,  H04N21/42692 ,  H04N21/43853 ,  H04N21/44004 ,  H04N21/4405 ,  H04N21/4431 ,  H04N21/4435 ,  H04N21/835

Abstract: Generally, aspects of this disclosure are directed to copy protection techniques. Areas in memory may be secured to establish a secure memory area in the memory that is not accessible by unauthorized clients. A request to decode video content stored in the secure memory area may be received. If the video content to be decoded is stored in the secure memory area, a first MMU associated with the hardware decoder may enforce a rule that the video content is to be decoded into one or more output buffers in the secure memory area. A request to display the decoded video content stored in the secure memory area may be received. If the decoded video content is stored in the secure memory area, a second MMU associated with a hardware display processor may enforce a rule that a secure link be established between the hardware display processor and an output device.

Abstract translation: 通常，本公开的方面涉及复制保护技术。 存储器中的区域可以被保护以在存储器中建立安全的存储器区域，该区域不被未经授权的客户端访问。 可以接收对存储在安全存储器区域中的视频内容进行解码的请求。 如果要解码的视频内容被存储在安全存储器区域中，则与硬件解码器相关联的第一MMU可以强制将视频内容解码为安全存储器区域中的一个或多个输出缓冲器的规则。 可以接收显示存储在安全存储器区域中的解码的视频内容的请求。 如果解码的视频内容存储在安全存储器区域中，则与硬件显示处理器相关联的第二MMU可以强制在硬件显示处理器和输出设备之间建立安全链路的规则。