CN104281424B - A kind of on-screen data processing method for generating embedded smaller screen synchronous on a display screen - Google Patents
A kind of on-screen data processing method for generating embedded smaller screen synchronous on a display screen Download PDFInfo
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- CN104281424B CN104281424B CN201310277309.0A CN201310277309A CN104281424B CN 104281424 B CN104281424 B CN 104281424B CN 201310277309 A CN201310277309 A CN 201310277309A CN 104281424 B CN104281424 B CN 104281424B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- 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
- G06F3/1415—Digital output to display device ; Cooperation and interconnection of the display device with other functional units with means for detecting differences between the image stored in the host and the images displayed on the displays
Abstract
A kind of on-screen data processing method for generating embedded smaller screen synchronous on a display screen, it is characterised in that comprise the following steps：If smaller screen is opened, create off screen and render with memory headroom off screen FBO；On-screen data is rendered into output change and is directed to off screen FBO；Whole screen layer Layer n+1 and smaller screen layer Layer n+2 are created, and the two layers share texture；Smaller screen layer Layer n+2 textures are linked into off screen FBO；Synthesize each application layer Layer 1, Layer 2 ..., in Layer n to off screen FBO, namely smaller screen layer Layer n+2 memory headrooms；On-screen data is rendered into output recovery and is directed to video memory FrameBuffer, and destroys off screen FBO；Merge whole screen layer Layer n+1 and smaller screen layer Layer n+2 to video memory FrameBuffer；Exchange Buffer spaces；Whole screen layer Layer n+1 and smaller screen layer the Layer n+2 data of merging are sent to display screen display.Whole screen can be achieved in the present invention（Large-size screen monitors）With the simultaneous display of the on-screen data of smaller screen, smoothness, size screen data syn-chronization Perfect Experience is brought.
Description
Technical field：
The present invention relates to a kind of on-screen data processing method for generating embedded smaller screen synchronous on a display screen.
Background technology：
Nowadays, the touch screen screen size of mobile hand-held device is increasing, under many use occasions, it is necessary in using
Embedded reduces screen, such as one-handed performance, first reduces the data of giant-screen, is positioned over the singlehanded smaller screen region for being capable of touch-control
It is interior, then smaller screen is operated, the needs of so as to meet to control whole giant-screen region.
So how to generate embedded smaller screenIt is common and simple way is again：Timing intercepts whole screen（Large-size screen monitors）Image
Data, extract partial dot or be filled into smaller screen region after reducing sectional drawing.The shortcomings that this method is：1. data on smaller screen and whole
Screen（Large-size screen monitors）Data are asynchronous；2. screenshotss have I/O operation, the occupancy CPU time is longer, and whole screen greatly reduces（Large-size screen monitors）Render
Frame per second, show as interim card.The two shortcomings cause to experience very poor, or even have a strong impact on normal use.
The content of the invention：
It is an object of the invention to provide a kind of on-screen data processing side for generating embedded smaller screen synchronous on a display screen
Method, it can solve the whole screen of display screen（Large-size screen monitors）Be delayed phenomenon that is asynchronous, having interim card between smaller screen, realizes whole screen（Large-size screen monitors）
With the simultaneous display of the on-screen data of smaller screen, smoothness, size screen data syn-chronization Perfect Experience is brought for user.
A kind of on-screen data processing method for generating embedded smaller screen synchronous on a display screen, it is characterised in that including as follows
Step：
If smaller screen is opened, establishment off screen, which renders, uses memory headroom：Off screen FBO；
On-screen data is rendered into output change and is directed to off screen FBO；
Whole screen layer Layer n+1 and smaller screen layer Layer n+2 are created, and the two layers share texture, i.e. common memory is empty
Between；
Smaller screen layer Layer n+2 textures are linked into off screen FBO；
Synthesize each application layer Layer 1, Layer 2 ..., Layer n to off screen FBO, namely smaller screen layer Layer n
In+2 memory headrooms；
On-screen data is rendered into output recovery and is directed to video memory FrameBuffer, and destroys off screen FBO；
Merge whole screen layer Layer n+1 and smaller screen layer Layer n+2 to video memory FrameBuffer；
Exchange Buffer spaces；
Whole screen layer Layer n+1 and smaller screen layer the Layer n+2 data of merging are sent to display screen display.
The present invention can be improved by following scheme：
If smaller screen is not opened, directly synthesize each application layer Layer 1, Layer 2 ..., Layer n to video memory
FrameBuffer, and it is sent to display screen display after Buffer spaces are exchanged.
The on-screen data be each application layer Layer 1, Layer 2 ..., Layer n view data.
The method of the present invention, it is possible to achieve the simultaneous display of large-size screen monitors and smaller screen on-screen data, and do not have when rendering
CPU is taken for a long time, so when user operates, the on-screen data synchronized update of large-size screen monitors and smaller screen is very smooth, and experience is very
It is perfect.
Brief description of the drawings：
Fig. 1 is the flow chart of the method for the present invention.
Embodiment：
As shown in figure 1, a kind of on-screen data processing method for generating embedded smaller screen synchronous on a display screen of the present invention,
This method starts from step S101, then in step S102, judges whether smaller screen is opened
When step S102 judged result is is, flow enters step S103；Otherwise, flow enters step S104.
In step S103, establishment off screen, which renders, uses memory headroom：Off screen FBO.
In step S104, directly synthesize each application layer Layer 1, Layer 2 ..., Layer n to video memory
FrameBuffer。
After step s 103, flow enters step S105；And after step s 104, flow enters step S111.
In step S105, on-screen data is rendered into output change and is directed to off screen FBO, the on-screen data is described each
Application layer Layer 1, Layer 2 ..., Layer n view data.
In step S106, whole screen layer Layer n+1 and smaller screen layer Layer n+2 are created, and the two layers share texture, i.e.,
Common memory space.
In step S107, smaller screen layer Layer n+2 textures are linked into off screen FBO.
In step S108, synthesize each application layer Layer 1, Layer 2 ..., Layer n to off screen FBO, Ye Ji little
Shield in layer Layer n+2 memory headrooms.
In step S109, on-screen data is rendered into output recovery and is directed to video memory FrameBuffer, and destroys off screen FBO.
In step S110, merge whole screen layer Layer n+1 and smaller screen layer Layer n+2 to video memory FrameBuffer.
In step S111, Buffer spaces are exchanged；
In step S112, whole screen layer Layer n+1 and smaller screen layer the Layer n+2 data of merging are sent on display screen
It has been shown that, complete to refresh.Wherein, the smaller screen layer data is shown on whole screen layer data.
Presently preferred embodiments of the present invention is the foregoing is only, is not used for limiting the scope that the present invention is implemented, Fan Yibenfa
The equal change that bright the scope of the claims is done and modification, fall within the scope that patent of the present invention covers.
Claims (3)
1. a kind of on-screen data processing method for generating embedded smaller screen synchronous on a display screen, it is characterised in that including following step
Suddenly：
If smaller screen is opened, establishment off screen, which renders, uses memory headroom：Off screen FBO；
On-screen data is rendered into output change and is directed to off screen FBO；
Whole screen layer Layer n+1 and smaller screen layer Layer n+2 are created, and the two layers share texture, i.e. common memory space；
Smaller screen layer Layer n+2 textures are linked into off screen FBO；
Synthesize each application layer Layer 1, Layer 2 ..., in Layer n to off screen FBO, namely smaller screen layer Layer n+2
Deposit in space；
On-screen data is rendered into output recovery and is directed to video memory FrameBuffer, and destroys off screen FBO；
Merge whole screen layer Layer n+1 and smaller screen layer Layer n+2 to video memory FrameBuffer；
Exchange FrameBuffer spaces；
Whole screen layer Layer n+1 and smaller screen layer the Layer n+2 data of merging are sent to display screen display.
2. a kind of on-screen data processing method for generating embedded smaller screen synchronous on a display screen according to claim 1,
It is characterized in that：If smaller screen is not opened, directly synthesize each application layer Layer 1, Layer 2 ..., Layer n arrive
Video memory FrameBuffer, and it is sent to display screen display after FrameBuffer spaces are exchanged.
A kind of 3. on-screen data processing side for generating embedded smaller screen synchronous on a display screen according to claim 1 or 2
Method, it is characterised in that：The on-screen data be each application layer Layer 1, Layer 2 ..., Layer n image
Data.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310277309.0A CN104281424B (en) | 2013-07-03 | 2013-07-03 | A kind of on-screen data processing method for generating embedded smaller screen synchronous on a display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310277309.0A CN104281424B (en) | 2013-07-03 | 2013-07-03 | A kind of on-screen data processing method for generating embedded smaller screen synchronous on a display screen |
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| Publication Number | Publication Date |
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| CN104281424A CN104281424A (en) | 2015-01-14 |
| CN104281424B true CN104281424B (en) | 2018-01-30 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104660826B (en) * | 2015-03-13 | 2018-05-01 | 硕诺科技（深圳）有限公司 | A kind of method that mobile phone large-size screen monitors turn smaller screen |
| CN109168068B (en) * | 2018-08-23 | 2020-06-23 | Oppo广东移动通信有限公司 | Video processing method and device, electronic equipment and computer readable medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101382868A (en) * | 2007-09-06 | 2009-03-11 | 夏普株式会社 | Information display device |
| CN102855866A (en) * | 2011-06-30 | 2013-01-02 | 联想(北京)有限公司 | Terminal, display terminal, display system and display method |
| CN102880399A (en) * | 2012-08-01 | 2013-01-16 | 北京三星通信技术研究有限公司 | Screen operation method and device |
| CN103024156A (en) * | 2012-11-29 | 2013-04-03 | 广东欧珀移动通信有限公司 | Method, system and mobile terminal for realizing one-handed mobile terminal operation |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5259772B2 (en) * | 2011-05-27 | 2013-08-07 | 株式会社東芝 | Electronic device, operation support method, and program |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101382868A (en) * | 2007-09-06 | 2009-03-11 | 夏普株式会社 | Information display device |
| CN102855866A (en) * | 2011-06-30 | 2013-01-02 | 联想(北京)有限公司 | Terminal, display terminal, display system and display method |
| CN102880399A (en) * | 2012-08-01 | 2013-01-16 | 北京三星通信技术研究有限公司 | Screen operation method and device |
| CN103024156A (en) * | 2012-11-29 | 2013-04-03 | 广东欧珀移动通信有限公司 | Method, system and mobile terminal for realizing one-handed mobile terminal operation |
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