CN111415636A - Picture sharing system and implementation method thereof - Google Patents
Picture sharing system and implementation method thereof Download PDFInfo
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- CN111415636A CN111415636A CN202010243060.1A CN202010243060A CN111415636A CN 111415636 A CN111415636 A CN 111415636A CN 202010243060 A CN202010243060 A CN 202010243060A CN 111415636 A CN111415636 A CN 111415636A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/36—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
- G09G5/37—Details of the operation on graphic patterns
- G09G5/377—Details of the operation on graphic patterns for mixing or overlaying two or more graphic patterns
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Abstract
The invention provides a picture sharing system and an implementation method thereof, wherein at least one hardware layer module of a first display device is mounted on a second processor of a second display device by configuring the hardware layer modules, the second display device sends shared display data to the hardware layer module mounted on the second processor, and the first display device synthesizes and outputs the display data of the first display device and the shared display data sent by the first display device, so that the high-efficiency and smooth picture sharing is realized.
Description
Technical Field
The invention relates to the technical field of image processing, in particular to a picture sharing system and an implementation method thereof.
Background
With the development of vehicle-mounted electronics, vehicle-mounted electronic terminals gradually develop in the direction of science and technology and intelligence, and particularly develop most rapidly with intelligent cockpit technology. The intelligent cabin integrates human-computer interaction technologies of a plurality of products such as vehicle-mounted entertainment system information, vehicle-mounted air conditioners and the like. The intelligent cockpit generally has more than two display screens, and the demand of sharing the picture between a plurality of display screens is more and more common. In the prior art, each display screen is driven by a separate display card, and when one display system needs to share display content with another display system, problems of delay, picture tearing and the like generally occur.
Therefore, the prior art is in need of further improvement.
Disclosure of Invention
The invention provides a picture sharing system and an implementation method thereof, aiming at overcoming the defects in the prior art and realizing high-efficiency and smooth picture sharing.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
one aspect of the present invention provides a picture sharing system, including:
the display device comprises a first display device, a second display device, a first processor unit and a second processor unit;
the first display device comprises a first display management unit, a first display card driving unit, a hardware synthesis driving unit, a first communication unit, a sharing response unit and a first physical display card unit;
the first display management unit is sequentially connected with the first display card driving unit and the first physical display card unit, the first physical display card unit is also connected with the hardware synthesis driving unit, and the first communication unit is connected with the sharing response unit;
and the first display management unit is used for controlling display data and an output layer.
And the first display card driving unit is used for sending first display data to the first physical display card unit.
The hardware synthesis driving unit is used for controlling the synthesis of the display data of the first physical display card unit;
the first communication unit is used for establishing communication connection with a second display device;
the sharing response unit is used for responding to a picture sharing request initiated by the second display device;
the first physical display card unit is used for synthesizing the first display data into a first image to be output and synthesizing the shared display data sent by the second display card unit and the first display data into a third image to be output;
the second display device comprises a second display management unit, a second display card driving unit, a second communication unit, a sharing request unit and a second physical display card unit;
the second display management unit, the second display card driving unit and the second physical display card unit are sequentially connected, the second display card driving unit is also connected with the first physical display card unit, and the second communication unit is connected with the sharing request unit and the first communication unit;
the second display management unit is used for controlling display data and an output layer;
the second display card driving unit is used for sending second display data to the second physical display card unit and sending shared display data to the first physical display card unit;
the second communication unit is used for establishing communication connection with the first display device;
the sharing request unit is used for initiating a picture sharing request to the first display device;
the second physical display card unit is used for synthesizing the second display data into a second image and outputting the second image;
the first processor unit is configured to run a first operating system that provides a software runtime environment for the first display device.
And the second processor unit is used for operating a second operating system of the second display device for providing a software operating environment.
Specifically, the first physical graphics card unit includes a first hardware layer module, a second hardware layer module, a first hardware synthesis module, and a first output interface module;
the first hardware layer module and the second hardware layer module are connected with the first hardware synthesis module, and the first hardware synthesis module is also connected with the first output interface module;
the first hardware layer module is used for receiving graphic data from a first display card driving unit;
the second hardware layer module is used for receiving shared display data from a second display card driving unit;
the first hardware synthesis module is used for synthesizing the graphic data of the first hardware layer module and the second hardware layer module into a display picture according to the configuration of the first display management module;
the first output interface module is used for outputting a display picture.
Specifically, the second physical graphics card unit includes a third hardware layer module, a second synthesis module, and a second output interface module, which are connected in sequence;
the third hardware layer module is used for receiving graphic data from a second display card driving unit;
the second synthesis module is used for synthesizing the graphic data of the third hardware layer module into a display picture according to the configuration of the second display management module;
and the second output interface module is used for outputting a display picture.
Specifically, the first hardware layer module, the second hardware layer module, and the third hardware layer module are DRM hardware layers (DRM planes).
Specifically, the first operating system is QNX, and the second operating system is Android.
Specifically, the first display management unit is a Screen module of the QNX system.
Specifically, the second display management unit is a surfefinger module of an Android system.
Another aspect of the present invention provides a method for implementing a picture sharing system, including:
step 1, initializing a system, and configuring a hardware layer module, wherein the method comprises the steps of mounting a first hardware layer module on a first processor, mounting a second hardware layer module and a third hardware layer module on a second processor, and setting attributes of the hardware layer modules, wherein the attributes comprise resolution, transmittance and window position;
step 2, the first display device and the second display device are started to establish communication connection;
step 3, the first display management unit sends first display data to a first hardware layer module of the first physical display card unit, and the second display management unit sends second display data to a third hardware layer module of the second physical display card unit;
step 4, the second display device sends a shared picture display request to the first display device, wherein the shared picture display request comprises the window size, the display position, the resolution and the Zorder setting of a shared picture;
step 5, after receiving the response returned by the first display device, the second display device sends shared display data to the first display device;
and 6, the first physical display card unit synthesizes and outputs the first display data and the shared display data.
Specifically, the first display device and the second display device establish communication connection in an IPC or message mailbox mode through the first communication unit and the second communication unit.
Specifically, the step 5 includes: and the second display management unit of the second display device sends shared display data to the second hardware layer module of the first physical display card through the second display card driving unit.
Specifically, the step 6 includes: and the hardware synthesis driving module controls a first synthesis unit to synthesize the first display data of the first hardware layer module and the shared display data of the second hardware layer module, and outputs the first display data and the shared display data through a first output interface module.
The invention has the beneficial effects that: according to the invention, the hardware layer modules are configured, at least one hardware layer module of the first display device is mounted on the second processor of the second display device, the second display device sends the shared display data to the hardware layer module mounted on the second processor, and the first display device synthesizes and outputs the display data of the first display device and the shared display data sent by the first display device, so that the high-efficiency and smooth picture sharing is realized.
Drawings
FIG. 1 is a schematic diagram of a picture sharing system according to the present invention;
fig. 2 is a flow chart of the picture sharing system implementation method of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are for reference and illustrative purposes only and are not intended to limit the scope of the invention.
Example 1:
as shown in fig. 1, the present embodiment provides a picture sharing system, including: the display device comprises a first display device, a second display device, a first processor unit and a second processor unit;
the first display device comprises a first display management unit, a first display card driving unit, a hardware synthesis driving unit, a first communication unit, a sharing response unit and a first physical display card unit;
the first display management unit is sequentially connected with the first display card driving unit and the first physical display card unit, the first physical display card unit is also connected with the hardware synthesis driving unit, and the first communication unit is connected with the sharing response unit;
and the first display management unit is used for controlling display data and an output layer.
And the first display card driving unit is used for sending first display data to the first physical display card unit.
The hardware synthesis driving unit is used for controlling the synthesis of the display data of the first physical display card unit;
the first communication unit is used for establishing communication connection with a second display device;
the sharing response unit is used for responding to a picture sharing request initiated by the second display device;
the first physical display card unit is used for synthesizing the first display data into a first image to be output and synthesizing the shared display data sent by the second display card unit and the first display data into a third image to be output;
the second display device comprises a second display management unit, a second display card driving unit, a second communication unit, a sharing request unit and a second physical display card unit;
the second display management unit, the second display card driving unit and the second physical display card unit are sequentially connected, the second display card driving unit is also connected with the first physical display card unit, and the second communication unit is connected with the sharing request unit and the first communication unit;
the second display management unit is used for controlling display data and an output layer;
the second display card driving unit is used for sending second display data to the second physical display card unit and sending shared display data to the first physical display card unit;
the second communication unit is used for establishing communication connection with the first display device;
the sharing request unit is used for initiating a picture sharing request to the first display device;
the second physical display card unit is used for synthesizing the second display data into a second image and outputting the second image;
the first processor unit is configured to run a first operating system that provides a software runtime environment for the first display device.
And the second processor unit is used for operating a second operating system of the second display device for providing a software operating environment.
In this embodiment, the first physical graphics card unit includes a first hardware layer module, a second hardware layer module, a first hardware synthesis module, and a first output interface module;
the first hardware layer module and the second hardware layer module are connected with the first hardware synthesis module, and the first hardware synthesis module is also connected with the first output interface module;
the first hardware layer module is used for receiving graphic data from a first display card driving unit;
the second hardware layer module is used for receiving shared display data from a second display card driving unit;
the first hardware synthesis module is used for synthesizing the graphic data of the first hardware layer module and the second hardware layer module into a display picture according to the configuration of the first display management module;
the first output interface module is used for outputting a display picture.
In this embodiment, the second physical graphics card unit includes a third hardware layer module, a second synthesis module, and a second output interface module, which are connected in sequence;
the third hardware layer module is used for receiving graphic data from a second display card driving unit;
the second synthesis module is used for synthesizing the graphic data of the third hardware layer module into a display picture according to the configuration of the second display management module;
and the second output interface module is used for outputting a display picture.
In this embodiment, the first hardware layer module, the second hardware layer module, and the third hardware layer module are DRM hardware layers (DRM planes).
In this embodiment, the first operating system is QNX, and the second operating system is Android.
In this embodiment, the first display management unit is a Screen module of a QNX system.
In this embodiment, the second display management unit is a surfefinger module of an Android system.
In specific implementation, the first physical graphics card unit and the second physical graphics card unit mount respective hardware layer modules (DRM planes) on processors running in different operating systems, so that the corresponding operating systems can access the hardware layer modules (DRM planes) allocated to the operating systems.
Example 2:
as shown in fig. 2, the present embodiment provides a method for implementing a picture sharing system, including:
step 1, initializing a system, and configuring a hardware layer module, wherein the method comprises the steps of mounting a first hardware layer module on a first processor, mounting a second hardware layer module and a third hardware layer module on a second processor, and setting attributes of the hardware layer modules, wherein the attributes comprise resolution, transmittance and window position.
In specific implementation, the hardware layer module of the physical display card unit is configured through the configuration file, and when the first operating system and the second operating system are started, the configuration of the hardware layer module can be completed by reading the configuration file.
And step 2, starting the first display device and the second display device to establish communication connection.
In this embodiment, the first display device and the second display device establish a communication connection in the form of IPC or a message mailbox through the first communication unit and the second communication unit.
And 3, the first display management unit sends first display data to a first hardware layer module of the first physical display card unit, and the second display management unit sends second display data to a third hardware layer module of the second physical display card unit.
And 4, the second display device sends a shared picture display request to the first display device, wherein the shared picture display request comprises the window size, the display position, the resolution and the Zorder setting of a shared picture.
And 5, after receiving the response returned by the first display device, the second display device sends shared display data to the first display device.
In this embodiment, the step 5 includes: and the second display management unit of the second display device sends shared display data to the second hardware layer module of the first physical display card through the second display card driving unit.
And 6, the first physical display card unit synthesizes and outputs the first display data and the shared display data.
In this embodiment, the step 6 includes: and the hardware synthesis driving module controls a first synthesis unit to synthesize the first display data of the first hardware layer module and the shared display data of the second hardware layer module, and outputs the first display data and the shared display data through a first output interface module.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention.
Claims (10)
1. A picture sharing system, comprising:
the display device comprises a first display device, a second display device, a first processor unit and a second processor unit;
the first display device comprises a first display management unit, a first display card driving unit, a hardware synthesis driving unit, a first communication unit, a sharing response unit and a first physical display card unit;
the first display management unit is sequentially connected with the first display card driving unit and the first physical display card unit, the first physical display card unit is also connected with the hardware synthesis driving unit, and the first communication unit is connected with the sharing response unit;
and the first display management unit is used for controlling display data and an output layer.
And the first display card driving unit is used for sending first display data to the first physical display card unit.
The hardware synthesis driving unit is used for controlling the synthesis of the display data of the first physical display card unit;
the first communication unit is used for establishing communication connection with a second display device;
the sharing response unit is used for responding to a picture sharing request initiated by the second display device;
the first physical display card unit is used for synthesizing the first display data into a first image to be output and synthesizing the shared display data sent by the second display card unit and the first display data into a third image to be output;
the second display device comprises a second display management unit, a second display card driving unit, a second communication unit, a sharing request unit and a second physical display card unit;
the second display management unit, the second display card driving unit and the second physical display card unit are sequentially connected, the second display card driving unit is also connected with the first physical display card unit, and the second communication unit is connected with the sharing request unit and the first communication unit;
the second display management unit is used for controlling display data and an output layer;
the second display card driving unit is used for sending second display data to the second physical display card unit and sending shared display data to the first physical display card unit;
the second communication unit is used for establishing communication connection with the first display device;
the sharing request unit is used for initiating a picture sharing request to the first display device;
the second physical display card unit is used for synthesizing the second display data into a second image and outputting the second image;
the first processor unit is configured to run a first operating system that provides a software runtime environment for the first display device.
And the second processor unit is used for operating a second operating system of the second display device for providing a software operating environment.
2. The picture sharing system according to claim 1, wherein the first physical graphics card unit includes a first hardware layer module, a second hardware layer module, a first hardware composition module, and a first output interface module;
the first hardware layer module and the second hardware layer module are connected with the first hardware synthesis module, and the first hardware synthesis module is also connected with the first output interface module;
the first hardware layer module is used for receiving graphic data from a first display card driving unit;
the second hardware layer module is used for receiving shared display data from a second display card driving unit;
the first hardware synthesis module is used for synthesizing the graphic data of the first hardware layer module and the second hardware layer module into a display picture according to the configuration of the first display management module;
the first output interface module is used for outputting a display picture.
3. The picture sharing system according to claim 1, wherein the second physical graphics card unit includes a third hardware layer module, a second synthesis module, and a second output interface module, which are connected in sequence;
the third hardware layer module is used for receiving graphic data from a second display card driving unit;
the second synthesis module is used for synthesizing the graphic data of the third hardware layer module into a display picture according to the configuration of the second display management module;
and the second output interface module is used for outputting a display picture.
4. The picture sharing system according to claim 1, wherein the first, second and third hardware layer modules are DRM hardware layers (DRM planes).
5. The picture sharing system according to claim 1, wherein the first operating system is QNX and the second operating system is Android.
6. The Screen sharing system according to claim 5, wherein the first display management unit is a Screen module of a QNX system.
7. The screen sharing system according to claim 5, wherein the second display management unit is a surfefinger module of an Android system.
8. A picture sharing system implementation method is characterized by comprising the following steps:
step 1, initializing a system, and configuring a hardware layer module, wherein the method comprises the steps of mounting a first hardware layer module on a first processor, mounting a second hardware layer module and a third hardware layer module on a second processor, and setting attributes of the hardware layer modules, wherein the attributes comprise resolution, transmittance and window position;
step 2, the first display device and the second display device are started to establish communication connection;
step 3, the first display management unit sends first display data to a first hardware layer module of the first physical display card unit, and the second display management unit sends second display data to a third hardware layer module of the second physical display card unit;
step 4, the second display device sends a shared picture display request to the first display device, wherein the shared picture display request comprises the window size, the display position, the resolution and the Zorder setting of a shared picture;
step 5, after receiving the response returned by the first display device, the second display device sends shared display data to the first display device;
and 6, the first physical display card unit synthesizes and outputs the first display data and the shared display data.
9. The picture sharing system implementation method according to claim 8, wherein the step 5 comprises: and the second display management unit of the second display device sends shared display data to the second hardware layer module of the first physical display card through the second display card driving unit.
10. The picture sharing system implementation method according to claim 8, wherein the step 6 comprises: and the hardware synthesis driving module controls a first synthesis unit to synthesize the first display data of the first hardware layer module and the shared display data of the second hardware layer module, and outputs the first display data and the shared display data through a first output interface module.
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| CN111415636B (en) | 2022-03-11 |
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