Method for Generating Display Frame and Terminal Device

Patent metadata

Field	Value
Publication number	US-2016247484-A1
Application number	US-201615147065-A
Country	US
Kind code	A1
Filing date	May 5, 2016
Priority date	Nov 6, 2013
Publication date	Aug 25, 2016
Grant date	—

Abstract

A method for generating a display frame and a terminal device is disclosed. When an execution result of a render operation of each application currently running on a terminal device or a compose operation of an application framework layer of a terminal device meets a predetermined condition, a render execution manner of each application and a compose execution manner of the application framework layer are adjusted. Each application executes a render operation in an adjusted render execution manner to render an image of each application. The application framework layer executes a compose operation in an adjusted compose execution manner to compose a display frame from the images of the applications.

First claim

What is claimed is:

1 . A method for generating a display frame, comprising:
adjusting a render execution manner of each application and a compose execution manner of an application framework layer when an execution result of an operation associated with a terminal device meets a predetermined condition; executing, by each application, a render operation in the adjusted render execution manner to render an image of each application; and executing, by the application framework layer, a compose operation in the adjusted compose execution manner to compose a display frame from the images of the applications.

2 . The method for generating a display frame according to claim 1 , wherein the operation comprises the render operation of each application currently running on the terminal device, and wherein the predetermined condition is met when a duration for the applications to execute the render operations exceeds a rendering time threshold.

3 . The method for generating a display frame according to claim 1 , wherein the predetermined condition is met when a system frame rate when a plurality of applications currently running on the terminal device executes the render operation and when the application framework layer executes the compose operation is lower than a frame rate threshold within a set time range.

4 . The method for generating a display frame according to claim 1 , wherein executing, by each application, the render operation in the adjusted render execution manner comprises executing, by each application, the render operation in the adjusted render execution manner according to a virtual vertical synchronization (Vsync) signal, wherein the virtual Vsync signal is a delayed signal obtained after a system Vsync signal experiences a set delay, and wherein the executing, by the application framework layer, the compose operation in the adjusted compose execution manner comprises executing, by the application framework layer, the compose operation in the adjusted compose execution manner according to the virtual Vsync signal.

5 . The method for generating a display frame according to claim 4 , wherein after composing the display frame from the images of the applications, the method further comprises sending, according to the first system Vsync signal after the application framework layer composes the display frame from the images of the applications, the display frame to a screen of the terminal device.

6 . A method for generating a display frame, comprising:
executing, by each application currently running on a terminal device, a render operation in a render execution manner according to a virtual vertical synchronization (Vsync) signal to render an image of each application, wherein the virtual Vsync signal is a delayed signal obtained after a system Vsync signal experiences a set delay; and executing, by an application framework layer of the terminal device, a compose operation in a compose execution manner according to the virtual Vsync signal to compose a display frame from the images of the applications.

7 . The method for generating a display frame according to claim 6 , wherein after composing the display frame from the images of the applications, the method further comprises sending, according to the first system Vsync signal after the application framework layer composes the display frame from the images of the applications, the display frame to a screen of the terminal device.

8 . A terminal device, comprising:
a computing hardware; and a non-transitory computer-readable storage medium including computer-executable instructions executed by the computing hardware to perform a method that comprises:
adjusting a render execution manner of each application and a compose execution manner of an application framework layer when an execution result of an operation associated with a the terminal device meets a predetermined condition;
instructing each application to execute a render operation in the adjusted render execution manner to render an image of each application; and
instructing the application framework layer to execute a compose operation in the adjusted compose execution manner to compose a display frame from the images of the applications.

9 . The terminal device according to claim 8 , wherein the operation comprises the render operation of each application currently running on the terminal device, and wherein the predetermined condition is met when a duration for the applications to execute the render operations exceeds a rendering time threshold

10 . The terminal device according to claim 8 , wherein the predetermined condition is met when a system frame rate when a plurality of applications currently running on the terminal device executes the render operation and when the application framework layer executes the compose operation is lower than a frame rate threshold within a set time range.

11 . The terminal device according to claim 8 , wherein instructing each application to execute the render operation in the adjusted render execution manner comprises instructing each application to execute the render operation in the adjusted render execution manner according to a virtual vertical synchronization (Vsync) signal, wherein the virtual Vsync signal is a delayed signal obtained after a system Vsync signal experiences a set delay, and wherein instructing the application framework layer to execute the compose operation in the adjusted compose execution manner comprises instructing the application framework layer to execute the compose operation in the adjusted compose execution manner according to the virtual Vsync signal.

12 . The terminal device according to claim 11 , wherein the computer-executable instructions executed by the computing hardware to perform the method that further comprises after composing the display frame from the images of the applications, sending, according to the first system Vsync signal after the application framework layer composes the display frame from the images of the applications, the display frame to a screen of the terminal device to perform displaying.

13 . The method for generating a display frame according to claim 1 , wherein the operation comprises the render operation of each application currently running on the terminal device, and wherein the predetermined condition is met when a quantity of consecutive times that the duration for the applications to execute the render operations exceeds a rendering time threshold exceeds a quantity of consecutive times threshold.

14 . The method for generating a display frame according to claim 1 , wherein the operation comprises the compose operation of the application framework layer of the terminal device, and wherein the predetermined condition is met when a duration for the application framework layer to execute the compose operation exceeds a composing time threshold.

15 . The method for generating a display frame according to claim 1 , wherein the operation comprises the compose operation of the application framework layer of the terminal device, and wherein the predetermined condition is met when a quantity of consecutive times that the duration for the application framework layer to execute the compose operation exceeds a composing time threshold exceeds a quantity of consecutive times threshold.

16 . The method for generating a display frame according to claim 1 , wherein the operation comprises at least one of the render operation of each application currently running on the terminal device or the compose operation of the application framework layer of the terminal devi

Assignees

• Huawei Device Co Ltd

Inventors

• Chen Lei
• Han Huayuan

Classifications

• G09G5/363

  Graphics controllers · CPC title

• G06T1/20

  Processor architectures; Processor configuration, e.g. pipelining · CPC title

• G09G2340/0435

  Change or adaptation of the frame rate of the video stream · CPC title

• G09G5/12 Primary

  Synchronisation between the display unit and other units, e.g. other display units, video-disc players · CPC title

• G09G5/18

  Timing circuits for raster scan displays (specially adapted for television H04N {; synchronisation between the display unit and other display units, videodisc player G09G5/12}) · CPC title