CN105808184B - The method, apparatus of display Android 2D application image and a kind of helmet - Google Patents
The method, apparatus of display Android 2D application image and a kind of helmet Download PDFInfo
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- CN105808184B CN105808184B CN201610102773.XA CN201610102773A CN105808184B CN 105808184 B CN105808184 B CN 105808184B CN 201610102773 A CN201610102773 A CN 201610102773A CN 105808184 B CN105808184 B CN 105808184B
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
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Abstract
The invention discloses the method, apparatus of display Android 2D application image and a kind of helmets.The method comprise the steps that the screen width of Android 2D application image to be shown to be revised as to the half of the screen width of display equipment itself；Android 2D to be shown is obtained using the undistorted image based on modified screen width；The SurfaceFlinger module for being responsible for display synthesis in Android system is called, establishes grid in the left screen and right screen of display equipment respectively；The texture of the undistorted image of the Android 2D application to be shown is plotted to respectively on the left screen and the respective grid of right screen using OpenGL and is shown.The technical solution solves the problems, such as to will appear image fault when the Image Rendering that Android 2D is applied being had the display equipment of multiple screens to VR equipment or AR equipment etc. using the prior art, and it is at low cost, method is simple, improves the display effect of 2D application, is suitable for practical.
Description
Technical field
The present invention relates to field of computer technology, in particular to show without distortions Android 2D application method, apparatus and
A kind of helmet.
Background technique
In recent years, (Augmented Reality, enhancing are existing by VR (Virtual Reality, virtual reality) technology and AR
It is real) technology continuous development, it is contemplated that the extensive use and open source property of Android system, the integral type VR equipment based on Android platform
It is more more and more urgent with the demand of AR equipment.But it requires to provide to the left eye of user and right eye simultaneously in VR equipment and AR equipment
Picture, this makes existing most of Android application, and especially 2D application not can be used directly in VR system and AR system.This
It results in VR system and AR system there is no in the case where unified standard, the content on relevant device lacks.If simple
The screen for showing the display equipment of Android 2D application is divided into left screen and right screen by ground, and 2D to be shown is applied
Image when be plotted on left screen and right screen respectively, and the problem of will appear image fault.
Summary of the invention
In view of the above problems, it proposes on the present invention overcomes the above problem or at least be partially solved in order to provide one kind
State problem show without distortions Android 2D application method, apparatus and a kind of helmet.
According to one aspect of the present invention, a kind of method for showing Android 2D application image is provided, comprising:
The screen width of Android 2D application image to be shown is revised as to the half of the screen width of display equipment itself；
Android 2D to be shown is obtained using the undistorted image based on modified screen width；
The SurfaceFlinger module for being responsible for display synthesis in Android system is called, respectively in the left side screen of display equipment
Curtain and right screen establish grid；
The texture of the undistorted image of the Android 2D application to be shown is plotted to the left side respectively using OpenGL
It is shown on side screen and the respective grid of right screen.
Optionally, the screen width by Android 2D application image to be shown is revised as the screen of display equipment itself
The half of width includes:
It calls the window management of Android system to service WindowManagerService, modifies the aobvious of 2D application to be shown
Show that the screen size in the DisplayContent class of the corresponding Display object of equipment is screen height * (screen width/2).
Optionally, the undistorted image for obtaining Android application to be shown includes:
The window management service WindowManagerService of Android system is called to return to modified screen size
It is applied to Android 2D to be shown, and it is undistorted using adaptively being obtained based on modified screen size to obtain Android 2D
Image.
Another aspect according to the present invention provides a kind of device for showing Android 2D application image, comprising:
Screen size modifies unit, for the screen width of Android 2D application image to be shown to be revised as screen itself
The half of width；
Undistorted image acquiring unit, for obtaining Android 2D to be shown using the nothing based on modified screen width
Distorted image；
Grid establishes unit, for calling the SurfaceFlinger module for being responsible for display synthesis in Android system, respectively
Grid is established in the left screen and right screen of display equipment；
Display unit is drawn, for using OpenGL by the texture of the undistorted image of the Android 2D application to be shown
It is plotted on the left screen and the respective grid of right screen and is shown respectively.
Optionally, the screen size modifies unit, for calling the window management service of Android system
WindowManagerService modifies the corresponding Display object of display equipment of 2D application to be shown
Screen size in DisplayContent class is screen height * (screen width/2).
Optionally, the undistorted image acquiring unit, for calling the window management service of Android system
Modified screen size is returned to Android 2D to be shown and applied by WindowManagerService, and obtains Android 2D
Using the undistorted image adaptively obtained based on modified screen size.
Another aspect according to the present invention, provides a kind of helmet, which is characterized in that the helmet includes such as
The device of display Android 2D application image described in any of the above embodiments.
It can be seen from the above, technical solution of the present invention, the screen width of Android 2D application image to be shown is revised as
Then the half for showing the screen width of equipment itself further obtains Android 2D to be shown and applies based on modified screen
The undistorted image of width is responsible for the SurfaceFlinger module of display synthesis by calling again later in Android system, point
Grid is not established in the left screen and right screen of display equipment, is then answered the Android 2D to be shown using OpenGL
The texture of undistorted image is plotted on the left screen and the respective grid of right screen respectively and is shown.Due to
In the prior art, for the image of Android 2D to be shown application when on the screen for being plotted to display equipment, generation is corresponding whole
The image of a screen size, and need to be respectively displayed on when actual displayed in the left screen and right screen of screen, because
This just needs to zoom in and out image, to generate distortion；And what is obtained in the technical program is Android 2D application to be shown
It based on the image of modified screen width, therefore does not need to zoom in and out not generate distortion, solves and utilize existing skill
Art will appear image when the Image Rendering that Android 2D is applied is had the display equipment of multiple screens to VR equipment or AR equipment etc.
The problem of distortion, can make user watch more good picture, the display for the picture, especially text of Android 2D application
Effect promoting clearly, and can be compatible with the existing Android 2D of magnanimity using the virtual reality all-in-one machine of the technical solution and answer
With when using this kind of VR equipment or AR equipment, user can experience richer content, and the skill with more pleasant mood
The cost of art scheme is low, and method is simple, is suitable for practical.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can
It is clearer and more comprehensible, the followings are specific embodiments of the present invention.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 shows a kind of flow chart of method for showing Android 2D application image according to an embodiment of the invention；
Fig. 2 shows a kind of schematic diagrams for the method for showing Android 2D application image according to an embodiment of the invention；
Fig. 3 shows a kind of structural representation of device for showing Android 2D application image according to an embodiment of the invention
Figure；
Fig. 4 shows a kind of structural schematic diagram of helmet according to an embodiment of the invention.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.
Fig. 1 shows a kind of flow chart of method for showing Android 2D application image according to an embodiment of the invention,
As shown in Figure 1, this method comprises:
Step S110, the screen itself that the screen width of Android 2D application image to be shown is revised as display equipment are wide
The half of degree.
Step S120 obtains Android 2D to be shown using the undistorted image based on modified screen width.
Step S130 calls the SurfaceFlinger module for being responsible for display synthesis in Android system, sets respectively in display
Standby left screen and right screen establishes grid.
The texture of the Android 2D to be shown undistorted image applied is plotted to a left side using OpenGL by step S140 respectively
It is shown on side screen and the respective grid of right screen.
In Android system, when by texture rendering to screen, need to establish entire screen grid, such as lower-left coordinate
For (- 1, -1), top-left coordinates are (1,1), and centre coordinate is (0,0).It is applied in VR system or AR system by the present embodiment
When, it needs to be respectively that left eye and right eye provide display, therefore screen into left screen and right screen using screen, on a left side
The image shown on side screen and right screen should be independent.In specific implementation, it may be considered that carrying out left screen
Drafting when, the center line that the reference line on the right side of screen grid moves to screen is established to new grid, thus the left side drawn out
The image of screen is image distortionless, suitable for left screen, can similarly draw right screen.It specifically, can be with
The drafting of the texture of undistorted image is carried out using OpenGL (Open Graphics Library, open graphic library).
As it can be seen that method shown in FIG. 1, is revised as display equipment for the screen width of Android 2D application image to be shown
Then the half of screen width itself further obtains Android 2D to be shown and applies based on modified screen width without mistake
True image is responsible for the SurfaceFlinger module of display synthesis by calling again later, is set respectively in display in Android system
Standby left screen and right screen establishes grid, is then applied the Android 2D to be shown using OpenGL undistorted
The texture of image is plotted on the left screen and the respective grid of right screen respectively and is shown.The technical solution solves
The Image Rendering for being applied Android 2D using the prior art has the display equipment of multiple screens to VR equipment or AR equipment etc.
When the problem of will appear image fault, user can be made to watch more good picture, for the picture, especially of Android 2D application
It is that the display effect of text is promoted clearly, and can be compatible with magnanimity existing for the virtual reality all-in-one machine of the application technical solution
Some Android 2D applications, when using this kind of VR equipment or AR equipment, user can be experienced richer with more pleasant mood
Content, and the cost of the technical solution is low, and method is simple, is suitable for practical.
In one embodiment of the invention, in method shown in FIG. 1, by the screen of Android 2D application image to be shown
The half that width is revised as the screen width of display equipment itself includes: to call the window management service of Android system
WindowManagerService modifies the corresponding Display object of display equipment of 2D application to be shown
Screen size in DisplayContent class is screen height * (screen width/2).
In Android system, an independent Display object can be distributed for the display equipment of each application system, and
Window management, which services WindowManagerService, then can create a DisplayContent for this Display object
Class just contains the information such as window relevant with corresponding Display object in such.For example, in such,
MInitialDisplayWidth, mInitialDisplayHeight, mInitialDisplayDensity correspondence save screen
Width, height and the density of curtain.So in the present embodiment, the value of mInitialDisplayWidth can be revised as former aobvious
Show the half of device screen width, for example, former screen size is 800*480, then modified screen size is 400*
480。
In one embodiment of the invention, in the above method, the undistorted image packet of Android application to be shown is obtained
It includes: calling the window management of Android system to service WindowManagerService and return to modified screen size to aobvious
The Android 2D application shown, and obtain Android 2D and apply the undistorted image adaptively obtained based on modified screen size.
Application in Android system generally requires to show equipment by obtaining if necessary to be shown on the display device
Screen size, accordingly generate with the screen size be adapted image, this method be known as Android apply to the adaptive of screen
It answers.
In the prior art, if 2D application needs to be applied directly in the scene of VR system and AR system.It will be to be shown
When the image of 2D application is plotted in respectively on left screen and right screen, due to being supplied to the screen size of 2D application as former screen
Curtain size, just will appear the problems in following scenes: for example, former screen size is 800*480, since screen needs are divided into
Left screen and right screen, the respectively left eye and right eye of user provide independent image, and therefore, practical application needs to show
Screen size be 400*480.And since 2D is applied according to the screen size got, the image adaptively obtained is to adapt to
The screen of 800*480 size, it, just must be by image down, i.e., extremely when being more completely shown on the screen of 400*480
To narrow down to 400*240 less (i.e. screen width and height, which all become adaptively giving birth to, obtains the half of image).Thus can
Lead to the problem of image fault, and screen all there are black surrounds up and down.And in the present embodiment due to calling Android system
Window management service WindowManagerService modified screen size returned into Android 2D to be shown apply,
That is it is the screen for adapting to 400*480 size that 2D, which is applied according to the image that modified screen size obtains, therefore 2D application can
To be shown in entire left screen and entire right screen, image fault, but also the utilization to screen is not only not present
Rate is also higher.
Fig. 2 shows a kind of schematic diagrams for the method for showing Android 2D application image according to an embodiment of the invention.
As shown in Fig. 2, the 2D of Android application layer, which is applied, passes through the window management service with Android ccf layer
WindowManagerService is interacted, and obtains the corresponding Display object of display equipment of 2D application to be shown
Modified screen size in DisplayContent class, then the figure that will adaptively be obtained according to the modified screen size
Picture services WindowManagerService by window management, further SurfaceFlinger module is called to apply 2D
Image Rendering to display equipment left screen and right screen on.
Fig. 3 shows a kind of structural representation of device for showing Android 2D application image according to an embodiment of the invention
Figure, as shown in figure 3, showing that the device 300 of Android 2D application includes: without distortions
Screen size modifies unit 310, for the screen width of Android 2D application image to be shown to be revised as screen
The half of width itself.
Undistorted image acquiring unit 320 is applied for obtaining Android 2D to be shown based on modified screen width
Undistorted image.
Grid establishes unit 330, for calling the SurfaceFlinger module for being responsible for display synthesis in Android system, point
Grid is not established in the left screen and right screen of display equipment.
Display unit 340 is drawn, for using OpenGL by the texture of the Android 2D to be shown undistorted image applied
It is plotted on left screen and the respective grid of right screen and is shown respectively.
As it can be seen that device shown in Fig. 3, is revised as display equipment for the screen width of Android 2D application image to be shown
Then the half of screen width itself further obtains Android 2D to be shown and applies based on modified screen width without mistake
True image is responsible for the SurfaceFlinger module of display synthesis by calling again later, is set respectively in display in Android system
Standby left screen and right screen establishes grid, is then applied the Android 2D to be shown using OpenGL undistorted
The texture of image is plotted on the left screen and the respective grid of right screen respectively and is shown.The technical solution solves
The Image Rendering for being applied Android 2D using the prior art has the display equipment of multiple screens to VR equipment or AR equipment etc.
When the problem of will appear image fault, user can be made to watch more good picture, for the picture, especially of Android 2D application
It is that the display effect of text is promoted clearly, and can be compatible with magnanimity existing for the virtual reality all-in-one machine of the application technical solution
Some Android 2D applications, when using this kind of VR equipment or AR equipment, user can be experienced richer with more pleasant mood
Content, and the cost of the technical solution is low, and method is simple, is suitable for practical.
In one embodiment of the invention, in device shown in Fig. 3, screen size modifies unit 310, for calling peace
The window management of tall and erect system services WindowManagerService, and the display equipment for modifying 2D application to be shown is corresponding
Screen size in the DisplayContent class of Display object is screen height * (screen width/2).
In one embodiment of the invention, in above-mentioned apparatus, undistorted image acquiring unit 320, for calling Android
Modified screen size is returned to Android 2D to be shown by the window management service WindowManagerService of system
Using, and obtain Android 2D and apply the undistorted image adaptively obtained based on modified screen size.
It should be noted that the tool in the specific embodiment of above-mentioned each Installation practice and aforementioned corresponding method embodiment
Body embodiment is identical, and details are not described herein.
Fig. 4 shows a kind of structural schematic diagram of helmet according to an embodiment of the invention, as shown in figure 4, head
Wearing equipment 400 includes such as the device 300 for showing Android 2D without distortions and applying in above-mentioned any embodiment.The helmet can
To allow user to experience more good picture in the virtual reality all-in-one machine of compatible 2D, pleasure uses mood, greatly enriches content.
In conclusion technical solution of the present invention, the screen width of Android 2D application image to be shown is revised as showing
Show the half of the screen of equipment width itself, then further obtains Android 2D to be shown using wide based on modified screen
The undistorted image of degree is responsible for the SurfaceFlinger module of display synthesis, respectively by calling again later in Android system
Grid is established in the left screen and right screen of display equipment, is then applied the Android 2D to be shown using OpenGL
The texture of undistorted image be plotted on the left screen and the respective grid of right screen and shown respectively.The technology
Scheme, which solves the Image Rendering for applying Android 2D using the prior art, has multiple screens to VR equipment or AR equipment etc.
The problem of will appear image fault when showing equipment, can make user watch more good picture, for Android 2D application
The display effect of picture, especially text is promoted clearly, and the virtual reality all-in-one machine of the application technical solution can be with
The compatible existing Android 2D application of magnanimity, when using this kind of VR equipment or AR equipment, user can be with more pleasant mood body
Richer content is tested, and the cost of the technical solution is low, method is simple, is suitable for practical.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent replacement, improvement and so within the spirit and principles in the present invention, are all contained in protection scope of the present invention
It is interior.
Claims (3)
1. a kind of method for showing Android 2D application image, which is characterized in that the described method includes:
The screen width of Android 2D application image to be shown is revised as to the half of the screen width of display equipment itself；
Android 2D to be shown is obtained using the undistorted image based on modified screen width；
Call Android system in be responsible for display synthesis SurfaceFlinger module, respectively display equipment left screen and
Right screen establishes grid；
The texture of the undistorted image of the Android 2D application to be shown is plotted to the left side screen respectively using OpenGL
It is shown on curtain and the respective grid of right screen；
The screen width by Android 2D application image to be shown is revised as the half of the screen width of display equipment itself
Include:
The window management of Android system is called to service WindowManagerService, the display for modifying 2D application to be shown is set
Screen size in the DisplayContent class of standby corresponding Display object is screen height * (screen width/2)；
The undistorted image for obtaining Android application to be shown includes:
Call Android system window management service WindowManagerService by modified screen size return to
The Android 2D of display is applied, and is obtained Android 2D and applied the undistorted figure adaptively obtained based on modified screen size
Picture.
2. a kind of device for showing Android 2D application image, which is characterized in that described device includes:
Screen size modifies unit, for the screen width of Android 2D application image to be shown to be revised as screen width itself
Half；
Undistorted image acquiring unit is applied for obtaining Android 2D to be shown based on the undistorted of modified screen width
Image；
Grid establishes unit, for calling the SurfaceFlinger module for being responsible for display synthesis in Android system, respectively aobvious
The left screen and right screen for showing equipment establish grid；
Display unit is drawn, for using OpenGL to distinguish the texture of the undistorted image of the Android 2D application to be shown
It is plotted on the left screen and the respective grid of right screen and is shown；
The screen size modifies unit, for calling the window management of Android system to service WindowManagerService,
The screen size modified in the DisplayContent class of the corresponding Display object of display equipment of the 2D to be shown application is
Screen height * (screen width/2)；
The undistorted image acquiring unit, for calling the window management of Android system to service WindowManagerService
Modified screen size is returned to Android 2D application to be shown, and obtains Android 2D and applies based on modified screen
The undistorted image that size adaptively obtains.
3. a kind of helmet, which is characterized in that the helmet includes display Android 2D application as claimed in claim 2
The device of image.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106570927A (en) * | 2016-10-14 | 2017-04-19 | 惠州Tcl移动通信有限公司 | Method of realizing virtual reality based on Android system, terminal and system |
| CN106851240A (en) * | 2016-12-26 | 2017-06-13 | 网易（杭州）网络有限公司 | The method and device of image real time transfer |
| CN108513671B (en) * | 2017-01-26 | 2021-08-27 | 华为技术有限公司 | Display method and terminal for 2D application in VR equipment |
| CN108694028B (en) * | 2017-03-15 | 2022-01-07 | 成都理想智美科技有限公司 | Android system-based double-screen display method and electronic equipment |
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