CN116402933A - Multi-window rendering method and device, computer equipment, storage medium and vehicle - Google Patents
Multi-window rendering method and device, computer equipment, storage medium and vehicle Download PDFInfo
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Abstract
The invention relates to the technical field of rendering, in particular to a multi-window rendering method, a multi-window rendering device, computer equipment, a storage medium and a vehicle, and aims to solve the technical problems that the existing rendering method is low in efficiency and wastes resources. For this purpose, the multi-window rendering method of the present invention includes: creating at least one application window; transmitting, by the rendering client, a handle of the at least one application window to the rendering server; rendering, by a rendering engine, the at least one application window based on the handle of the at least one application window, resulting in a rendered image of the at least one application window. Therefore, the method realizes the simultaneous rendering of a plurality of windows by one rendering engine, improves the rendering efficiency and saves the system resources.
Description
Technical Field
The invention relates to the technical field of rendering, and particularly provides a multi-window rendering method, a multi-window rendering device, computer equipment, a storage medium and a vehicle.
Background
With the continued increase in vehicle intelligent cockpit CPU and GPU performance, modern vehicle intelligent cockpit systems have had powerful three-dimensional picture and animation rendering capabilities. The Unity engine can be used as a rendering engine of three-dimensional man-machine interaction of a cabin which is currently mainstream, and how to efficiently use the Unity engine becomes a new subject.
At present, two methods for using Unity engines are commonly adopted on an android 4.0 system, one scheme is that all human-computer interaction pictures are rendered by using one Unity engine, the other scheme is that a main application human-computer interaction interface is still rendered by the android, and each application is connected with an independent Unity engine to render a three-dimensional part of the single-computer interaction picture as required. However, the first scheme has insufficient stability and low development efficiency, and the second scheme occupies excessive system resources to cause performance problems.
Accordingly, there is a need in the art for a new solution to the above-mentioned problems.
Disclosure of Invention
The present invention has been made to overcome the above-mentioned drawbacks, and to provide a solution or at least partially solve the above-mentioned technical problems. The invention provides a multi-window rendering method, a multi-window rendering device, computer equipment, a storage medium and a vehicle.
In a first aspect, the present invention provides a method for rendering multiple windows, the method comprising: creating at least one application window; transmitting, by the rendering client, the handle of the at least one application window to the rendering server; rendering, by a rendering engine, the at least one application window based on the handle of the at least one application window, resulting in a rendered image of the at least one application window.
In one embodiment, the sending, by the rendering client, the handle of the at least one application window to the rendering server includes: establishing communication connection between the rendering client and the rendering server; and sending the handle of the at least one application window to the rendering server through an AIDL communication mechanism.
In one embodiment, the rendering, by the rendering engine, the at least one application window based on the handle of the at least one application window, resulting in a rendered image of the at least one application window, includes: determining at least one display output module and at least one rendered scene based on the handle of the at least one application window; binding the at least one rendering scene and the at least one display output module; and rendering the at least one application window based on the bound rendering scene and the display output module to obtain a rendering image of the at least one application window.
In one embodiment, the determining at least one display output module and at least one rendering scene based on the handle of the at least one application window includes: invoking a first application program interface, converting the at least one application window into at least one display output module based on the handle; acquiring interface information of the at least one application window based on the handle of the at least one application window; and calling a second application program interface, and creating at least one rendering scene based on the interface information.
In one embodiment, the creating at least one application window includes: in response to at least one operation request by a user, a third application program interface is invoked to create the at least one application window.
In one embodiment, the method further comprises: updating display information of the display interface based on the rendered image of the at least one application window.
In a second aspect, the present invention provides a multi-window rendering apparatus, the apparatus comprising:
at least one application program configured to create at least one application window, the application program comprising a rendering client configured to send a handle of the at least one application window to a rendering server;
a rendering server configured to receive a handle of at least one application window sent by the rendering client;
a rendering engine configured to render the at least one application window based on the handle of the at least one application window, resulting in a rendered image of the at least one application window.
In a third aspect, a computer device is provided, comprising at least one processor and at least one storage means, the storage means being adapted to store a plurality of program code, the program code being adapted to be loaded and executed by the processor to perform the method of rendering a multi-window as claimed in any preceding claim.
In a fourth aspect, a computer readable storage medium is provided having stored therein a plurality of program code adapted to be loaded and executed by a processor to perform the multi-window rendering method of any of the preceding claims.
The technical scheme provided by the invention has at least one or more of the following beneficial effects:
the multi-window rendering method comprises the following steps: creating at least one application window; transmitting, by the rendering client, a handle of the at least one application window to the rendering server; rendering, by a rendering engine, the at least one application window based on the handle of the at least one application window, resulting in a rendered image of the at least one application window. Therefore, the method realizes the simultaneous rendering of a plurality of windows by one rendering engine, improves the rendering efficiency, saves the system resources and ensures the stability and the development efficiency of the system.
Drawings
The present disclosure will become more readily understood with reference to the accompanying drawings. As will be readily appreciated by those skilled in the art: the drawings are for illustrative purposes only and are not intended to limit the scope of the present invention. Moreover, like numerals in the figures are used to designate like parts, wherein:
FIG. 1 is a flow chart illustrating the main steps of a multi-window rendering method according to one embodiment of the present invention;
FIG. 2 is a schematic diagram of a rendering apparatus in one embodiment;
FIG. 3 is a complete flow diagram of a method of rendering multiple windows in one embodiment;
FIG. 4 is a schematic block diagram of a main structure of a multi-window rendering apparatus according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a computer device in one embodiment.
Detailed Description
Some embodiments of the invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
In the description of the present invention, a "module," "processor" may include hardware, software, or a combination of both. A module may comprise hardware circuitry, various suitable sensors, communication ports, memory, or software components, such as program code, or a combination of software and hardware. The processor may be a central processor, a microprocessor, an image processor, a digital signal processor, or any other suitable processor. The processor has data and/or signal processing functions. The processor may be implemented in software, hardware, or a combination of both. Non-transitory computer readable storage media include any suitable medium that can store program code, such as magnetic disks, hard disks, optical disks, flash memory, read-only memory, random access memory, and the like. The term "a and/or B" means all possible combinations of a and B, such as a alone, B alone or a and B. The term "at least one A or B" or "at least one of A and B" has a meaning similar to "A and/or B" and may include A alone, B alone or A and B. The singular forms "a", "an" and "the" include plural referents.
At present, on an android 4.0 system, two methods for using Unity engines are generally adopted, one scheme is that all human-computer interaction pictures are rendered by using one Unity engine, and the other scheme is that a main application human-computer interaction interface is still rendered by the android, and each application is connected with an independent Unity engine to render a three-dimensional part of the three-dimensional part according to the requirement. However, the first scheme has insufficient stability and low development efficiency, and the second scheme occupies excessive system resources to cause performance problems.
To this end, the present application proposes a method, apparatus, computer device, storage medium and vehicle for rendering multiple windows, comprising creating at least one application window; transmitting, by the rendering client, a handle of the at least one application window to the rendering server; rendering, by a rendering engine, the at least one application window based on the handle of the at least one application window, resulting in a rendered image of the at least one application window. Therefore, the method realizes the simultaneous rendering of a plurality of windows by one rendering engine, improves the rendering efficiency, saves the system resources and ensures the stability and the development efficiency of the system.
Referring to fig. 1, fig. 1 is a flowchart illustrating main steps of a multi-window rendering method according to an embodiment of the present invention.
As shown in fig. 1, the multi-window rendering method in the embodiment of the invention mainly includes the following steps S101 to S103.
Step S101: at least one application window is created.
Step S102: and the rendering client sends the handle of the at least one application window to the rendering server.
Step S103: rendering, by a rendering engine, the at least one application window based on the handle of the at least one application window, resulting in a rendered image of the at least one application window.
In one embodiment, a Unity engine may be used as an example of the rendering engine, but is not limited thereto.
The Unity engine is a real-time 3D interactive content authoring and operation platform. All creators including game development, art, construction, car design, film and television, become realistic with the aid of Unity. The Unity engine provides a complete set of software solutions for authoring, operating and rendering any real-time interactive 2D and 3D content, and the support platform includes cell phones, tablet computers, PCs, game hosts, augmented reality and virtual reality devices.
In order to make the objects, technical solutions and advantages of the present invention more clear, a detailed description of a multi-window rendering method according to the present application will be given below with reference to the drawings and the embodiments, and using a Unity engine as an example of a rendering engine. It should be understood by those skilled in the art that the specific embodiments described herein are merely for explaining the present invention, and are not intended to limit the multi-window rendering method described herein to use a Unity engine as a rendering engine.
Creating at least one application window based on the steps S101-S103; transmitting, by the rendering client, a handle of the at least one application window to the rendering server; rendering, by a rendering engine, the at least one application window based on the handle of the at least one application window, resulting in a rendered image of the at least one application window. Therefore, the method realizes the simultaneous rendering of a plurality of windows by one rendering engine, improves the rendering efficiency, saves the system resources and ensures the stability and the development efficiency of the system.
The above steps S101 to S103 are further described below.
First, step S101 will be described in detail.
The application window is used for displaying application 3D content, and the application window is independently created by an application program, but is finally drawn by the Unity rendering service. The application window is carried by the android Surface object. The Surface object may be obtained through Surface View and textureView.
An application window can be simply understood as a segment of a drawing buffer in memory. The handle (Surface) of an application window is an identifier that is used to identify the application window, i.e., the virtual address of the application window, through which the native buffer and the contents therein are available.
In a specific embodiment, the creating at least one application window includes: in response to at least one operation request by a user, a third application program interface is invoked to create the at least one application window.
In response to at least one operation request by the user, a third application program interface may be invoked by the application program to create an application window. The third application program interface herein may be an android standard Application Program Interface (API).
In one embodiment, the code to create the application window is as follows:
SurfaceView sv＝new SurfaceView(this)
the purpose of the application is to achieve rendering of multiple windows. Therefore, in the following embodiments, the method for rendering multiple windows of the present application will be described in detail by taking rendering three application windows as an example, but the method for rendering multiple windows described in the present invention is not limited to using only three application windows as multiple windows, and may be four, five or more application windows.
Specifically, as shown in fig. 2 in particular, each application 11 may create one application window, and three applications may create three application windows.
The above is a further explanation of step S101, and the following further explanation of step S102 is continued.
In a specific embodiment, the sending, by the rendering client, the handle of the at least one application window to the rendering server includes: establishing communication connection between the rendering client and the rendering server; and sending the handle of the at least one application window to the rendering server through an AIDL communication mechanism.
As shown in FIG. 2, rendering client 111 is a module, also referred to as a thread, within application 11. The rendering Client 111 and the rendering Server 12 are two parts in a C/S (Client/Server) architecture, and the rendering Client and the rendering Server can be regarded as two different threads.
Specifically, in this embodiment, a communication connection between the rendering client and the rendering server of each application program is first established, and after the communication connection between the rendering client and the rendering server is successfully established, the cross-application transfer of the handle of the application window between the rendering client and the rendering server is subsequently supported.
AIDL (android interface definition language ) is a description language for defining client/server communication interfaces.
In one embodiment, code for sending a handle of each application window located at the rendering client to the rendering server via an AIDL communication mechanism is as follows:
//IRenderService.aidl
package com.example.testhb；
import android.view.Surface；
interface IRenderService{
boolean sendSurface(in Surface surface)；
}
the above is a further explanation of step S102, and the following further explanation of step S103 is continued.
The step S103 may be specifically implemented by the following steps S1031 to S1033.
Step S1031: at least one display output module and at least one rendered scene are determined based on the handle of the at least one application window.
In one specific embodiment, the determining at least one display output module and at least one rendering scene based on the handle of the at least one application window includes: invoking a first application program interface, converting the at least one application window into at least one display output module based on the handle; acquiring interface information of the at least one application window based on the handle of the at least one application window; and calling a second application program interface, and creating at least one rendering scene based on the interface information.
The first application program interface refers to the android application program interface of UnityPlayer.
The second application program interface refers to the standard API of the Unity engine.
The Display output module (Unity Display) can be regarded as a handle of the application window in the Unity engine.
In one embodiment, the android application program interface (android API) of the UnityPlayer is used to convert the handle (Surface) of each application window into a Display output module (Unity Display), and specific codes are as follows:
UnityPlayer.displayChanged(1,surface)；
the Unity engine further obtains interface information of the application window through the handle of each application window, wherein the interface information refers to the specific content to be drawn of the application window.
The Unity engine comprises a scene manager that manages the lifecycle of rendered scenes for all applications and the binding of rendered scenes to the display output module.
Specifically, the scene manager calls a standard API of the Unity engine to create a scene, and configures the created scene parameters by using interface information of the application window to obtain the rendering scene.
In one embodiment, the code that invokes the standard API creation scenario of the Unity engine is as follows:
SceneManager.LoadSceneAsync("targetscene",LoadSceneMode.Ad ditive)；
a rendering scene may be created for each application window based on the above method.
Step S1032: binding the at least one rendering scene and the at least one display output module.
Specifically, the scene manager invokes the standard API of the Unity engine to bind a rendering scene Camera (Camera) and a display output module, thereby binding a rendering scene and a display output module. In addition, after the display output module is destroyed, the scene manager further destroys the corresponding display output module.
In one embodiment, the application program interface to which the Display binds with the Surface is unityplayer. Through the API, the Unity internal Display can be bound with the Surface of the android.
In another embodiment, the code that binds the rendered scene and the display output module is as follows:
Display.display[i].Activate()；
Camera.SetTargetBuffers(Display.display[i].colorBuffer,Display.display[i].depthBuffer)；
in this way, binding of each rendering scene and each display output module can be achieved.
Step S1033: and rendering the at least one application window based on the bound rendering scene and the display output module to obtain a rendering image of the at least one application window.
Specifically, after each rendering scene and each display output module are bound, a conventional rendering flow is performed on the basis. Illustratively, the geometric information and output rendering primitives required for the next rendering operation of the GPU are first provided for use by the subsequent rendering stages. Then the object, position, shape, etc. are rendered. Finally, a rasterization process is performed, for example, to determine which pixels in the rendered primitive should be drawn on the screen, and then the colors thereof are merged and mixed. Therefore, the rendering of the whole application window can be realized, and for the rendering of a plurality of application windows, the rendering process is only required to be repeated for a plurality of times, so that the rendering image of each application window is obtained.
Through the steps, the rendering of a plurality of windows is realized, so that the development of the 3D human-machine interaction (HMI) of the intelligent cabin can be realized with stability, high performance and high research and development efficiency, the use of a system CPU, a memory, system storage and the like is obviously reduced, and the use of a GPU can be greatly reduced in certain scenes.
In one embodiment, a complete flow of the multi-window rendering method is described in detail below.
As shown in fig. 3, for a plurality of application programs, each application program creates an application window, and sends a handle of the application window to a rendering server through a rendering client in the application program. At the rendering server, the handle of each application window is converted into a display output module through the android application program interface of the UnityPlayer, a scene manager creates a plurality of rendering scenes, each rendering scene is bound with the corresponding display output module, and the Unity engine further performs rendering to obtain a rendering image of each application window.
In some embodiments, the method further comprises: updating display information of the display interface based on the rendered image of the at least one application window.
Specifically, after rendering the rendered image of each application window by the Unity engine, fusing the rendered images of all application windows, and updating display information of a display interface (UI) according to a fusion result. Therefore, the fusion display of the rendering images of the application windows is realized, and the use experience of a user is improved.
It should be noted that, although the foregoing embodiments describe the steps in a specific order, it will be understood by those skilled in the art that, in order to achieve the effects of the present invention, the steps are not necessarily performed in such an order, and may be performed simultaneously (in parallel) or in other orders, and these variations are within the scope of the present invention.
Further, the invention also provides a rendering device of the multiple windows.
Referring to fig. 4, fig. 4 is a main block diagram of a multi-window rendering apparatus according to an embodiment of the present invention.
As shown in fig. 4, the multi-window rendering device in the embodiment of the present invention mainly includes at least one application 11, a rendering server 12, and a rendering engine 13. In some embodiments, one or more of at least one application 11, rendering server 12, and rendering engine 13 may be combined together into one module.
In some embodiments, at least one application 11 may be configured to create at least one application window, the application comprising a rendering client 111, the rendering client 111 being configured to send a handle of the at least one application window to a rendering server.
The rendering server 12 may be configured to receive a handle of at least one application window sent by the rendering client.
The rendering engine 13 may be configured to render the at least one application window based on the handle of the at least one application window resulting in a rendered image of the at least one application window.
In one embodiment, the description of the specific implementation functions may be described with reference to step S101 to step S103.
The technical principles of the two embodiments, the technical problems to be solved, and the technical effects to be produced are similar, and those skilled in the art can clearly understand that, for convenience and brevity of description, the specific working process and the related description of the multi-window rendering device can refer to the description of the embodiment of the multi-window rendering method, which is not repeated herein.
It will be appreciated by those skilled in the art that the present invention may implement all or part of the above-described methods according to the above-described embodiments, or may be implemented by means of a computer program for instructing relevant hardware, where the computer program may be stored in a computer readable storage medium, and where the computer program may implement the steps of the above-described embodiments of the method when executed by a processor. Wherein the computer program comprises computer program code which may be in source code form, object code form, executable file or some intermediate form etc. The computer readable storage medium may include: any entity or device, medium, usb disk, removable hard disk, magnetic disk, optical disk, computer memory, read-only memory, random access memory, electrical carrier wave signals, telecommunications signals, software distribution media, and the like capable of carrying the computer program code. It should be noted that the computer readable storage medium may include content that is subject to appropriate increases and decreases as required by jurisdictions and by jurisdictions in which such computer readable storage medium does not include electrical carrier signals and telecommunications signals.
Further, the invention also provides computer equipment. In one embodiment of a computer device according to the present invention, as particularly shown in fig. 5, the computer device includes at least one processor 51 and at least one storage device 52, the storage device may be configured to store a program for executing the multi-window rendering method of the above-described method embodiment, and the processor may be configured to execute the program in the storage device, including, but not limited to, the program for executing the multi-window rendering method of the above-described method embodiment. For convenience of explanation, only those portions of the embodiments of the present invention that are relevant to the embodiments of the present invention are shown, and specific technical details are not disclosed, please refer to the method portions of the embodiments of the present invention.
The computer device may be a control apparatus device formed of various devices in the embodiment of the present invention. In some possible implementations, a computer device may include a plurality of storage devices and a plurality of processors. The program for executing the multi-window rendering method of the above method embodiment may be divided into a plurality of sub-programs, and each sub-program may be loaded and executed by the processor to execute different steps of the multi-window rendering method of the above method embodiment. Specifically, each of the sub-programs may be stored in different storage devices, and each of the processors may be configured to execute the programs in one or more storage devices, so as to jointly implement the multi-window rendering method of the above method embodiment, that is, each of the processors executes different steps of the multi-window rendering method of the above method embodiment, so as to jointly implement the multi-window rendering method of the above method embodiment.
The plurality of processors may be processors disposed on the same device, for example, the computer device may be a high-performance device composed of a plurality of processors, and the plurality of processors may be processors configured on the high-performance device. In addition, the plurality of processors may be processors disposed on different devices, for example, the computer device may be a server cluster, and the plurality of processors may be processors on different servers in the server cluster.
Further, the invention also provides a computer readable storage medium. In one embodiment of the computer-readable storage medium according to the present invention, the computer-readable storage medium may be configured to store a program for performing the multi-window rendering method of the above-described method embodiment, which may be loaded and executed by a processor to implement the multi-window rendering method described above. For convenience of explanation, only those portions of the embodiments of the present invention that are relevant to the embodiments of the present invention are shown, and specific technical details are not disclosed, please refer to the method portions of the embodiments of the present invention. The computer readable storage medium may be a storage device including various computer devices, and optionally, the computer readable storage medium in embodiments of the present invention is a non-transitory computer readable storage medium.
Further, it should be understood that, since the respective modules are merely set to illustrate the functional units of the apparatus of the present invention, the physical devices corresponding to the modules may be the processor itself, or a part of software in the processor, a part of hardware, or a part of a combination of software and hardware. Accordingly, the number of individual modules in the figures is merely illustrative.
Those skilled in the art will appreciate that the various modules in the apparatus may be adaptively split or combined. Such splitting or combining of specific modules does not cause the technical solution to deviate from the principle of the present invention, and therefore, the technical solution after splitting or combining falls within the protection scope of the present invention.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will fall within the scope of the present invention.
Claims (10)
1. A method of rendering multiple windows, the method comprising:
creating at least one application window;
transmitting, by the rendering client, the handle of the at least one application window to the rendering server;
rendering, by a rendering engine, the at least one application window based on the handle of the at least one application window, resulting in a rendered image of the at least one application window.
2. The method according to claim 1, wherein the sending, by the rendering client, the handle of the at least one application window to the rendering server, comprises:
establishing communication connection between the rendering client and the rendering server;
and sending the handle of the at least one application window to the rendering server through an AIDL communication mechanism.
3. The method of claim 1, wherein rendering, by the rendering engine, the at least one application window based on the handle of the at least one application window, results in a rendered image of the at least one application window, comprising:
determining at least one display output module and at least one rendered scene based on the handle of the at least one application window;
binding the at least one rendering scene and the at least one display output module;
and rendering the at least one application window based on the bound rendering scene and the display output module to obtain a rendering image of the at least one application window.
4. A method of rendering multiple windows according to claim 3, wherein said determining at least one display output module and at least one rendered scene based on the handle of the at least one application window comprises:
invoking a first application program interface, converting the at least one application window into at least one display output module based on the handle;
acquiring interface information of the at least one application window based on the handle of the at least one application window;
and calling a second application program interface, and creating at least one rendering scene based on the interface information.
5. The method of claim 1, wherein creating at least one application window comprises: in response to at least one operation request by a user, a third application program interface is invoked to create the at least one application window.
6. The method of rendering multiple windows of claim 1, further comprising: updating display information of the display interface based on the rendered image of the at least one application window.
7. A multi-window rendering apparatus, the apparatus comprising:
at least one application program configured to create at least one application window, the application program comprising a rendering client configured to send a handle of the at least one application window to a rendering server;
a rendering server configured to receive a handle of at least one application window sent by the rendering client;
a rendering engine configured to render the at least one application window based on the handle of the at least one application window, resulting in a rendered image of the at least one application window.
8. A computer device comprising at least one processor and at least one storage means, the storage means being adapted to store a plurality of program code, characterized in that the program code is adapted to be loaded and executed by the processor to perform the multi-window rendering method of any of claims 1 to 6.
9. A computer readable storage medium having stored therein a plurality of program codes, wherein the program codes are adapted to be loaded and executed by a processor to perform the multi-window rendering method of any one of claims 1 to 6.
10. A vehicle comprising a vehicle body, at least one processor and at least one memory device, wherein the memory device is adapted to store a plurality of program codes, characterized in that the program codes are adapted to be loaded and run by the processor to perform the multi-window rendering method of any one of claims 1 to 6.
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