CN102103478B - Method, device and system for intercepting display data - Google Patents
Method, device and system for intercepting display data Download PDFInfo
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Abstract
The embodiment of the invention discloses a method, device and system for intercepting display data. The method disclosed by the invention comprises the following steps: establishing transition resources which are the same as display data attributes; when the display data are updated, obtaining the updated first rectangular region information, wherein the first rectangular region information comprises first rectangular region data information; storing the first rectangular region data information into the transition resources with indexes; and sending the indexes of the transition resources to a first intercepting module, so that the first intercepting module can obtain the updated display data according to the indexes of the transition resources. By utilizing the method disclosed by the embodiment of the invention, the updated display data can be obtained through the first intercepting module by utilizing the indexes of the transition resources, and replicas are not required to be established on the updated display data in the first intercepting module, thereby saving the procedures for obtaining the display data and saving the resources of the system.
Description
Technical field
The present invention relates to field of computer technology, relate in particular to a kind of demonstration data cutout methods, devices and systems.
Background technology
In the PC field, the mode that is combined to form larger demonstration desktop by multi-display has very wide application scenarios, is particularly carrying out data analysis or in the application scenarioss such as meeting room, larger demonstration desktop so that more data can show simultaneously.
Realize multi-display is combined to form larger demonstration desktop, emphasis just is that the contents interception that how main frame shown out.
The inventor provides a kind of new demonstration data cutout method at the Research foundation to prior art.
Summary of the invention
In view of this, the purpose of the embodiment of the invention is to provide a kind of demonstration data cutout methods, devices and systems, to realize showing data cutout.
For achieving the above object, the embodiment of the invention provides following technical scheme:
A kind of method that shows data cutout, create and the excessive resources that shows that data attribute is identical, the memory source of described excessive resources for shining upon, copy the mapping that realizes on the described excessive resources the resource that is copied to by the resource that can not shine upon, the mapping relations of described excessive resources are that the index by excessive resources transmits, and can determine excessive resources by the index of described excessive resources; The method comprises:
When showing Data Update, obtain the first rectangular area information of renewal, described the first rectangular area information comprises the first rectangular area data message;
Described the first rectangular area data message is saved in the described excessive resources, and this excessive resources has index;
Described the first interception module sends the index of described excessive resources to the first interception module, so that can obtain according to the index of described excessive resources the demonstration data after the renewal.
Described the first rectangular area information also comprises the positional information of described the first rectangular area in described demonstration data.
Described the first rectangular area data message is saved in the described excessive resources is specially:
Described the first rectangular area data message is saved in the correspondence position of described excessive resources according to the positional information of described the first rectangular area in described demonstration data.
A kind of method that shows data cutout comprises:
When showing Data Update, obtain the first rectangular area information of renewal, described the first rectangular area information comprises the first rectangular area data message and the first rectangular area positional information in described demonstration data;
Described the first rectangular area is saved in the excessive resources, and this excessive resources has index; The memory source of described excessive resources for shining upon, copy the mapping that realizes on the described excessive resources the resource that is copied to by the resource that can not shine upon, the mapping relations of described excessive resources are that the index by excessive resources transmits, and can determine excessive resources by the index of described excessive resources;
Send index and described the first rectangular area positional information in described demonstration data of described excessive resources to the first interception module, so that described the first interception module can obtain according to the index of described excessive resources described the first rectangular area data message, and according to the positional information of described the first rectangular area in described demonstration data described demonstration data are upgraded.
Described the first rectangular area is saved in the excessive resources is specially:
Described the first rectangular area data message is saved in the correspondence position of described excessive resources according to the positional information of described the first rectangular area in described demonstration data.
A kind of device that shows data cutout comprises:
Creating unit is used for creating and the excessive resources that shows that data attribute is identical; The memory source of described excessive resources for shining upon, copy the mapping that realizes on the described excessive resources the resource that is copied to by the resource that can not shine upon, the mapping relations of described excessive resources are that the index by excessive resources transmits, and can determine excessive resources by the index of described excessive resources;
The first acquiring unit is used for obtaining the first rectangular area information of renewal when showing Data Update, and described the first rectangular area information comprises the first rectangular area data message;
The first storage unit is used for described the first rectangular area data message is saved in described excessive resources, and this excessive resources has index;
The first transmitting element is used for sending to described the first interception module the index of described excessive resources, so that described the first interception module can obtain according to the index of described excessive resources the demonstration data after the renewal.
Described the first acquiring unit also is used for obtaining described the first rectangular area in the positional information of described demonstration data.
Described the first storage unit is also for the correspondence position that in the positional information of described demonstration data described the first rectangular area data message is saved in described excessive resources according to described the first rectangular area.
A kind of device that shows data cutout comprises:
Second acquisition unit is used for obtaining the first rectangular area information of renewal when showing Data Update, and described the first rectangular area information comprises the first rectangular area data message and the first rectangular area positional information in described demonstration data;
The second storage unit is used for described the first rectangular area is saved in excessive resources, and this excessive resources has index; The memory source of described excessive resources for shining upon, copy the mapping that realizes on the described excessive resources the resource that is copied to by the resource that can not shine upon, the mapping relations of described excessive resources are that the index by excessive resources transmits, and can determine excessive resources by the index of described excessive resources;
The second transmitting element, be used for sending the index of described excessive resources and described the first rectangular area in the positional information of described demonstration data to the first interception module, so that described the first interception module can obtain according to the index of described excessive resources described the first rectangular area data message, and according to the positional information of described the first rectangular area in described demonstration data described demonstration data are upgraded.
Described the second storage unit is also for the correspondence position that in the positional information of described demonstration data described the first rectangular area data message is saved in described excessive resources according to described the first rectangular area.
A kind of demonstration data interception system comprises the second interception module and the first interception module, wherein,
Described the second interception module is used for creating and the excessive resources that shows that data attribute is identical; When showing Data Update, obtain the first rectangular area information of renewal, described the first rectangular area information comprises the first rectangular area data message; Described the first rectangular area data message is saved in the described excessive resources, and this excessive resources has index; Send the index of described excessive resources to described the first interception module; Wherein, the memory source of described excessive resources for shining upon, copy the mapping that realizes on the described excessive resources the resource that is copied to by the resource that can not shine upon, the mapping relations of described excessive resources are that the index by excessive resources transmits, and can determine excessive resources by the index of described excessive resources;
Described the first interception module is used for the demonstration data after index according to described excessive resources obtains renewal.
Described the first interception module also is used for the demonstration data after the described renewal are sent to display module for demonstration.
A kind of demonstration data interception system comprises the second interception module and the first interception module, wherein,
Described the second interception module is used for obtaining the first rectangular area information of renewal when showing Data Update, and described the first rectangular area information comprises the first rectangular area data message and the first rectangular area positional information in described demonstration data; Described the first rectangular area is saved in the excessive resources, and this excessive resources has index; Send index and described the first rectangular area positional information in described demonstration data of described excessive resources to the first interception module; Wherein, the memory source of described excessive resources for shining upon, copy the mapping that realizes on the described excessive resources the resource that is copied to by the resource that can not shine upon, the mapping relations of described excessive resources are that the index by excessive resources transmits, and can determine excessive resources by the index of described excessive resources;
Described the first interception module is used for obtaining described the first rectangular area data message according to the index of described excessive resources, and according to the positional information of described the first rectangular area in described demonstration data described demonstration data is upgraded.
Described the first interception module also is used for the demonstration data after the described renewal are sent to display module for demonstration.
As seen, in embodiments of the present invention, create and the excessive resources that shows that data attribute is identical, the method comprises: when showing Data Update, obtain the first rectangular area information of renewal, described the first rectangular area information comprises the first rectangular area data message; Described the first rectangular area data message is saved in the described excessive resources, and this excessive resources has index; Described the first interception module sends the index of described excessive resources to the first interception module, so that can obtain according to the index of described excessive resources the demonstration data after the renewal.The method that the embodiment of the invention provides, the characteristic of utilizing excessive resources to shine upon, the demonstration data of upgrading are saved in the excessive resources, and the index of this excessive resources sent to the first interception module, so that the demonstration data that this first interception module utilizes the index of this excessive resources to obtain to upgrade, the method that the embodiment of the invention provides is so that the first interception module and need not in this locality again the demonstration data after upgrading to be set up copy, saved and obtained the flow process that shows data, saved system resource.
Description of drawings
Fig. 1 is the process flow diagram of the method passed through of one embodiment of the invention;
Demonstration data in the scene that the method that Fig. 2-1 provides for one embodiment of the invention is used in a kind of situation;
Demonstration data in the scene that the method that Fig. 2-2 provides for one embodiment of the invention is used in the another kind of situation;
The process flow diagram of the method that Fig. 3 provides for another embodiment of the present invention;
The process flow diagram of the method that Fig. 4 provides for further embodiment of this invention;
The structural representation that installs that Fig. 5 provides for one embodiment of the invention;
The structural representation that installs that Fig. 6 provides for another embodiment of the present invention.
Embodiment
The embodiment of the invention discloses, for making purpose of the present invention, technical scheme and advantage clearer, referring to the accompanying drawing embodiment that develops simultaneously, the present invention is described in further detail.
Fig. 1 at first needs to create and the excessive resources that shows that data attribute is identical for a kind of method that shows data cutout that one embodiment of the invention provides, and the method comprises:
When S101, demonstration Data Update, obtain the first rectangular area information of renewal, described the first rectangular area information comprises the first rectangular area data message;
In the embodiment of the invention, show that data can be the contents that shows on screen or other carriers.A kind of memory source that can shine upon of excessive resources copies the mapping that realizes on the excessive resources the resource that is copied to by the resource that can not shine upon.
In the embodiment of the invention, this excessive resources is equivalent to a drawing board, is used for demonstration data and renewal thereof are carried out record.In order to guarantee that all possible more new capital that shows data is recorded, so this excessive resources must have identical attribute with the demonstration data, comprise and show that data have identical size, identical form etc.
S102, described the first rectangular area data message is saved in the described excessive resources, this excessive resources has index;
In the embodiment of the invention, the mapping relations of excessive resources are that the index by excessive resources transmits, and just can determine excessive resources by the index of excessive resources.In other embodiment of the present invention, this index can exist with handle or other form, and the present invention does not do restriction to this.
Described the first interception module S103, sends the index of described excessive resources to the first interception module, so that can obtain according to the index of described excessive resources the demonstration data after the renewal.
When showing Data Update, the first rectangular area after the renewal can be the whole demonstration data after changing, and also can only be the demonstration data that change.For example original demonstration data are shown in Fig. 2-1, and the demonstration data after the renewal are Fig. 2-2, and in so a kind of situation, the first rectangular area is the whole demonstration data after the renewal shown in Fig. 2-2; In the another kind of situation, the part of renewal can such as the right half part among Fig. 2-2, namely be compared in the first rectangular area with raw display data.
When the first rectangular area is exactly when all showing the content of data, because the first rectangular area data message has been saved in the excessive resources, and the index of excessive resources also has been delivered to the first interception module, so that this first interception module can directly obtain demonstration data after the renewal by this index.
When the first rectangular area is when showing the part that renewal occurs in the data, to correctly intercept the demonstration data, except the data message that will obtain the first rectangular area, also need to determine the positional information of this first rectangular area in showing data, so, in one embodiment of the invention, when showing Data Update, when obtaining the first rectangular area information of renewal, except will obtaining the first rectangular area data message, also to obtain the positional information of the first rectangular area in described demonstration data.Correspondingly, when being kept at the first rectangular area in the excessive resources, need to described the first rectangular area data message be saved in according to the positional information of the first rectangular area in described demonstration data the correspondence position of described excessive resources.Like this, can be so that the first interception module can obtain according to the index of excessive resources the demonstration data after the renewal.
Further, the first interception module obtains and these demonstration data can be sent to display module after the demonstration data after the renewal and externally show, particularly, can be sent to display module by USB, UWB or the Ethernet demonstration data after with described renewal externally shows
The method that the embodiment of the invention provides, the characteristic of utilizing excessive resources to shine upon, the demonstration data of upgrading are saved in the excessive resources, and the index of this excessive resources sent to the first interception module, so that the demonstration data that this first interception module utilizes the index of this excessive resources to obtain to upgrade, and need not in the first interception module, again the demonstration data after upgrading to be set up copy, saved and obtained the flow process that shows data, saved system resource.
Referring to Fig. 3, the demonstration data cutout method that another embodiment of the present invention provides comprises:
When S301, demonstration Data Update, obtain the first rectangular area information of renewal, described the first rectangular area information comprises the first rectangular area data message and the first rectangular area positional information in described demonstration data;
S302, described the first rectangular area is saved in the excessive resources, this excessive resources has index;
S303, send index and described the first rectangular area positional information in described demonstration data of described excessive resources to the first interception module, so that described the first interception module can obtain according to the index of described excessive resources described the first rectangular area data message, and according to the positional information of described the first rectangular area in described demonstration data described demonstration data are upgraded.
The method that the embodiment of the invention provides, what this first rectangular area can be recorded is whole demonstration data, also can be the partial information of whole demonstration data.For example, when the method that adopts the embodiment of the invention to provide intercepted the demonstration data first, the full content of whole demonstration data all was new concerning intercepting first process, and at this moment, what this first rectangular area was corresponding is exactly the full content of whole demonstration data.
The method that provides according to the embodiment of the invention is in case through after the first intercepting, just preserved the full content that shows data in the excessive resources.This moment, the positional information in showing data of this first rectangular area namely showed data itself, for example, if show that the total size of data is 1000 * 1000(pixel unit), the positional information of this first rectangular area is (0 so, 0) and (1000,1000), wherein, (0,0) be the coordinate in this upper left corner, the first rectangular area, (1000 * 1000) are the coordinate in this lower right corner, the first rectangular area, obviously, at this moment, this first rectangular area is whole demonstration data.The first interception module just can obtain initial demonstration data according to the index of excessive resources.
Further, the demonstration data that this first interception module can be initial with this are sent to display module and externally show, and particularly, can be sent to display module by USB, UWB or the Ethernet demonstration data after with described renewal and externally show,
After this, when showing Data Update, only need to obtain with respect to initial demonstration data, more generally, intercept and capture and pass to the first interception module with respect to the display data content that the last time upgrades when intercepting shows data, the first interception module just can upgrade the demonstration data on the basis of the upper demonstration data of once intercepting and capturing.
Particularly, need to when showing Data Update, obtain data message and this first rectangular area positional information in showing data of the first rectangular area of renewal.Content after the demonstration Data Update of this first rectangular area of the data message record of the first rectangular area, the positional information of this first rectangular area in these demonstration data then is to have recorded the relative position of this first rectangular area in the demonstration data of this renewal, only has to have simultaneously these two parameter guarantee first interception modules and obtain the first rectangular area after the renewal and it is updated in exactly and show in the data.
Alternatively, when in excessive resources, preserving the data message of the first rectangular area, can open up excessive resources according to the size of each the first rectangular area of upgrading in real time, also can open up all the time the excessive resources onesize with these demonstration data, and described the first rectangular area data message is saved in the correspondence position of described excessive resources according to the positional information of described the first rectangular area in described demonstration data.The present invention does not do restriction to this.
Need to prove, opening up excessive resources according to the size of each the first rectangular area of upgrading in real time preserves to the rectangular area time, the first interception module only can obtain the data message of this first rectangular area according to this excessive resources index, but, this first interception module can be shown in the data behind the first rectangular area that obtains after the renewal it being updated in exactly, also need the positional information in this first rectangular area.All the time open up the excessive resources onesize with these demonstration data, and when according to the positional information of described the first rectangular area in described demonstration data described the first rectangular area data message being saved in the correspondence position of described excessive resources, index and this first rectangular area positional information in these demonstration data that this first interception module also must be by this excessive resources could show in the data obtaining the data message of the first rectangular area and it is updated to exactly from excessive resources.So, no matter pass through which kind of mode keeps this first rectangular area in excessive resources data message, when sending this excessive resources index to the first interception module, all need to send simultaneously the positional information of this first rectangular area in showing data, show in the data so that this first interception module can obtain the first rectangular area after the renewal and it is updated in exactly.
The method that the embodiment of the invention provides, the characteristic of utilizing excessive resources to shine upon, the demonstration data of upgrading when intercepting with respect to the last time by the first rectangular area record, be saved in the excessive resources, and with the index of this excessive resources and this first rectangular area the positional information in showing data sends to the first interception module, so that utilizing the first rectangular area after the index of this excessive resources and this first rectangular area positional information in showing data can obtain to obtain renewal and it is updated in exactly, this first interception module shows in the data, and need not in the first interception module, again the demonstration data after upgrading to be set up copy, simultaneously, the method that the embodiment of the invention provides is upgraded on the upper once basis of intercepting at every turn, the demonstration data that namely only need to upgrade in the first rectangular area get final product, reduce the data volume of each transmission, saved system resource.
Referring to Fig. 4, the below's screen printing in the Windows7 is described in detail the method that the embodiment of the invention was provided as example.
S401, when Desktop Window Manager among the Windows7 (DWM) is initialized, attribute according to the DWM desktop creates an identical with it excessive resources (Staging Resource), and the image initialization of Staging Resource is identical with the DWM desktop.
The attribute of desktop comprises size, color depth, RGB (RGB) form etc.For example, the DWM desktop is initialized as full blueness, and size is assumed to be 1280 * 1024, Staging Resource and also is initialized as full blueness, and size is 1280 * 1024.
S402, create Staging Resource, obtain the handle (Allocation) of Staging Resource, Allocation is passed to the kernel state filtration drive.
In the embodiment of the invention, the handle of this Staging Resource just is equivalent to the index of this excessive resources, and in other embodiments, this index can also be other parameters that can shine upon this excessive resources, and the present invention does not do restriction to this.And the kernel state filtration drive namely is equivalent to the first interception module among Fig. 1 or the embodiment shown in Figure 3.
S403, kernel state filtration drive are received this Allocation, and obtain the data of the Staging Resource of its mapping according to Allocation.
The data of Staging Resource generally exist with the form of pointer in the embodiment of the invention.
So far, initialization is complete.
Suppose the white rectangle of 150 * 100 sizes of screen upper left corner coordinate (100,100) position appearance this moment.The DWM desktop formally has been updated to this white rectangle on the desktop picture.
S404, user's attitude filtration drive obtain update area size position, and namely (100,100) and (250,200) represent the upper left coordinate position with the bottom right of rectangle.
S405, with (100,100), (250,200) this regional image copies to the Staging Resource from the DWM desktop, finishes the more copy of new portion of desktop picture.
In the embodiment of the invention, with (100,100), (100,100) of (250,200) this regional image copy in the Staging Resource, (250,200) this zone, corresponding at the DWM desktop with it.
S406, notice kernel state filtration drive, image interception is complete.
After S407, kernel state filtration drive were notified, the data pointer that constantly shines upon according to initialization obtained view data.
S408, kernel state filtration drive send to USB device or other equipment with this view data.
The DWM desktop constantly upgrades, and user's attitude drives according to upgrading can constantly obtain up-to-date update image data, has so just realized real-time intercepting DWM desktop.
In the embodiment of the invention, user's attitude filtration drive and kernel state filtration drive are by having realized alternately the intercepting of DWM desktop.Particularly, user's attitude filtration drive is set up and the excessive resources that shows that data (DWM desktop) are identical in advance, when desktop has renewal, user's attitude filtration drive is recorded in this renewal in the excessive resources, and notify this kernel state filtration drive, this kernel state filtration drive just can obtain the demonstration data of upgrading in this excessive resources according to the corresponding pointer of the handle of this excessive resources.Need to prove, the whole DWM desktop that only obtains according to the excessive resources handle, in other embodiments of the invention, can also in notice, inform kernel state filtration drive module in the more specific location information that will upgrade the zone, so that this kernel state filtration drive module can obtain to upgrade according to the more specific location information of upgrading the zone content in zone, and obtain up-to-date update image data according to this more specific location information of upgrading the zone.
Need to prove, when the attribute of DWM desktop changes, such as being 1280 * 1024 originally, become 1024*768, need again to create the StagingResource identical with the DWM desktop in user's attitude filtration drive, keep Staging Resource in size, color depth, each attribute such as rgb format is consistent with the DWM desktop.
Demonstration data cutout scheme in the existing vista system adopts the source resource of copy desktop behind user's attitude establishing resource, then maps out view data in user's attitude and copies in the kernel state.And the scheme that the embodiment of the invention provides can be directly obtains the mapping pointer of the source resource that user's attitude copies at kernel state, adhoc buffer is used for depositing view data like this so that kernel state not only reduces copy procedure one time, and so that kernel state does not need to reallocate.In the situation that 1920 * 1200 resolution, each screenshotss can be saved the about 10～30ms of copy time, and that Installed System Memory also can be saved 8M is many.
The method that the embodiment of the invention provides, be pre-created the excessive resources identical with the attribute of DWM desktop by user's attitude filtration drive, and the handle of this excessive resources passed to the kernel state filtration drive, and when the DWM desktop upgrades, by this excessive resources the DWM desktop that upgrades is carried out record, so that this kernel state drives the DWM desktop that can directly obtain according to this handle renewal from excessive resources, and need not in this kernel state drives, again the DWM desktop after upgrading to be set up copy, saved and obtained the flow process that shows data, saved system resource.
Referring to Fig. 5, one embodiment of the invention also provides a kind of device that shows data cutout, and this device comprises:
Creating unit 501 is used for creating and the excessive resources that shows that data attribute is identical;
The first acquiring unit 502 is used for obtaining the first rectangular area information of renewal when showing Data Update, and described the first rectangular area information comprises the first rectangular area data message;
The first storage unit 503 is used for described the first rectangular area data message is saved in described excessive resources, and this excessive resources has index;
The first transmitting element 504 is used for sending to described the first interception module the index of described excessive resources, so that described the first interception module can obtain according to the index of described excessive resources the demonstration data after the renewal.
Further, described the first acquiring unit 502 also is used for obtaining described the first rectangular area in the described positional information that shows certificate.
Correspondingly, described the first storage unit 503 is also for the correspondence position that in the positional information of described demonstration data described the first rectangular area data message is saved in described excessive resources according to described the first rectangular area.
The device that the embodiment of the invention provides, the characteristic of utilizing excessive resources to shine upon, the demonstration data of upgrading are saved in the excessive resources, and the index of this excessive resources sent to the first interception module, so that the demonstration data that this first interception module utilizes the index of this excessive resources to obtain to upgrade, and need not in the first interception module, again the demonstration data after upgrading to be set up copy, saved and obtained the flow process that shows data, saved system resource.
Referring to Fig. 6, one embodiment of the invention also provides the another kind of device that shows data cutout, and this device comprises:
Second acquisition unit 601 is used for obtaining the first rectangular area information of renewal when showing Data Update, and described the first rectangular area information comprises the first rectangular area data message and the first rectangular area positional information in described demonstration data;
The second storage unit 602 is used for described the first rectangular area is saved in excessive resources, and this excessive resources has index;
The second transmitting element 603, be used for sending the index of described excessive resources and described the first rectangular area in the positional information of described demonstration data to the first interception module, so that described the first interception module can obtain according to the index of described excessive resources described the first rectangular area data message, and according to the positional information of described the first rectangular area in described demonstration data described demonstration data are upgraded.
Further, described the second storage unit is also for the correspondence position that in the positional information of described demonstration data described the first rectangular area data message is saved in described excessive resources according to described the first rectangular area.
The device that the embodiment of the invention provides, the characteristic of utilizing excessive resources to shine upon, the demonstration data of upgrading when intercepting with respect to the last time by the first rectangular area record, be saved in the excessive resources, and with the index of this excessive resources and this first rectangular area the positional information in showing data sends to the first interception module, so that utilizing the first rectangular area after the index of this excessive resources and this first rectangular area positional information in showing data can obtain to obtain renewal and it is updated in exactly, this first interception module shows in the data, and need not in the first interception module, again the demonstration data after upgrading to be set up copy, simultaneously, the method that the embodiment of the invention provides is upgraded on the upper once basis of intercepting at every turn, the demonstration data that namely only need to upgrade in the first rectangular area get final product, reduce the data volume of each transmission, saved system resource.
One embodiment of the invention also provides a kind of demonstration data interception system, comprises the second interception module and the first interception module, wherein,
Described the second interception module is used for creating and the excessive resources that shows that data attribute is identical; When showing Data Update, obtain the first rectangular area information of renewal, described the first rectangular area information comprises the first rectangular area data message; Described the first rectangular area data message is saved in the described excessive resources, and this excessive resources has index; Send the index of described excessive resources to described the first interception module;
Described the first interception module is used for the demonstration data after index according to described excessive resources obtains renewal.
Further, described the first interception module also is used for the demonstration data after the described renewal are sent to display module for demonstration.
In in the practical application, described the first interception module by USB, UWB or the Ethernet demonstration data sending value reality module after with described renewal for demonstration.
The system that the embodiment of the invention provides, the characteristic of utilizing excessive resources to shine upon, the demonstration data of upgrading are saved in the excessive resources, and the index of this excessive resources sent to the first interception module, so that the demonstration data that this first interception module utilizes the index of this excessive resources to obtain to upgrade, and need not in the first interception module, again the demonstration data after upgrading to be set up copy, saved and obtained the flow process that shows data, saved system resource.
Another embodiment of the present invention also provides a kind of demonstration data interception system, and this system comprises the second interception module and the first interception module, wherein,
Described the second interception module is used for obtaining the first rectangular area information of renewal when showing Data Update, and described the first rectangular area information comprises the first rectangular area data message and the first rectangular area positional information in described demonstration data; Described the first rectangular area is saved in the excessive resources, and this excessive resources has index; Send index and described the first rectangular area positional information in described demonstration data of described excessive resources to the first interception module;
Described the first interception module is used for obtaining described the first rectangular area data message according to the index of described excessive resources, and according to the positional information of described the first rectangular area in described demonstration data described demonstration data is upgraded.
Further, described the first interception module also is used for the demonstration data after the described renewal are sent to display module for demonstration.
In the practical application, described the first interception module by USB, UWB or the Ethernet demonstration data sending value reality module after with described renewal for demonstration.
The system that the embodiment of the invention provides, the characteristic of utilizing excessive resources to shine upon, the demonstration data of upgrading when intercepting with respect to the last time by the first rectangular area record, be saved in the excessive resources, and with the index of this excessive resources and this first rectangular area the positional information in showing data sends to the first interception module, so that utilizing the first rectangular area after the index of this excessive resources and this first rectangular area positional information in showing data can obtain to obtain renewal and it is updated in exactly, this first interception module shows in the data, and need not in the first interception module, again the demonstration data after upgrading to be set up copy, simultaneously, the method that the embodiment of the invention provides is upgraded on the upper once basis of intercepting at every turn, the demonstration data that namely only need to upgrade in the first rectangular area get final product, reduce the data volume of each transmission, saved system resource.
The present invention can describe in the general context of the computer executable instructions of being carried out by computing machine, for example program module.Usually, program module comprises the routine carrying out particular task or realize particular abstract data type, program, object, assembly, data structure etc.Also can in distributed computing environment, put into practice the present invention, in these distributed computing environment, be executed the task by the teleprocessing equipment that is connected by communication network.In distributed computing environment, program module can be arranged in the local and remote computer-readable storage medium that comprises memory device.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (14)
1. method that shows data cutout, it is characterized in that, create and the excessive resources that shows that data attribute is identical, the memory source of described excessive resources for shining upon, copy the mapping that realizes on the described excessive resources the resource that is copied to by the resource that can not shine upon, the mapping relations of described excessive resources are that the index by excessive resources transmits, and can determine excessive resources by the index of described excessive resources, and the method comprises:
When showing Data Update, obtain the first rectangular area information of renewal, described the first rectangular area information comprises the first rectangular area data message;
Described the first rectangular area data message is saved in the described excessive resources, and this excessive resources has index;
Described the first interception module sends the index of described excessive resources to the first interception module, so that can obtain according to the index of described excessive resources the demonstration data after the renewal.
2. method according to claim 1 is characterized in that, described the first rectangular area information also comprises the positional information of described the first rectangular area in described demonstration data.
3. method according to claim 2 is characterized in that, described the first rectangular area data message is saved in the described excessive resources be specially:
Described the first rectangular area data message is saved in the correspondence position of described excessive resources according to the positional information of described the first rectangular area in described demonstration data.
4. a method that shows data cutout is characterized in that, comprising:
When showing Data Update, obtain the first rectangular area information of renewal, described the first rectangular area information comprises the first rectangular area data message and the first rectangular area positional information in described demonstration data;
Described the first rectangular area is saved in the excessive resources, and this excessive resources has index; The memory source of described excessive resources for shining upon, copy the mapping that realizes on the described excessive resources the resource that is copied to by the resource that can not shine upon, the mapping relations of described excessive resources are that the index by excessive resources transmits, and can determine excessive resources by the index of described excessive resources;
Send index and described the first rectangular area positional information in described demonstration data of described excessive resources to the first interception module, so that described the first interception module can obtain according to the index of described excessive resources described the first rectangular area data message, and according to the positional information of described the first rectangular area in described demonstration data described demonstration data are upgraded.
5. method according to claim 4 is characterized in that, described the first rectangular area is saved in the excessive resources be specially:
Described the first rectangular area data message is saved in the correspondence position of described excessive resources according to the positional information of described the first rectangular area in described demonstration data.
6. a device that shows data cutout is characterized in that, comprising:
Creating unit is used for creating and the excessive resources that shows that data attribute is identical; Described excessive resources be the memory source that can shine upon, copy the mapping that realizes on the described excessive resources the resource that is copied to by the resource that can not shine upon, the mapping relations of described excessive resources are that the index by excessive resources transmits, and can determine excessive resources by the index of described excessive resources;
The first acquiring unit is used for obtaining the first rectangular area information of renewal when showing Data Update, and described the first rectangular area information comprises the first rectangular area data message;
The first storage unit is used for described the first rectangular area data message is saved in described excessive resources, and this excessive resources has index;
The first transmitting element is used for sending to described the first interception module the index of described excessive resources, so that described the first interception module can obtain according to the index of described excessive resources the demonstration data after the renewal.
7. device according to claim 6 is characterized in that, described the first acquiring unit also is used for obtaining described the first rectangular area in the positional information of described demonstration data.
8. device according to claim 7, it is characterized in that, described the first storage unit is also for the correspondence position that in the positional information of described demonstration data described the first rectangular area data message is saved in described excessive resources according to described the first rectangular area.
9. a device that shows data cutout is characterized in that, comprising:
Second acquisition unit is used for obtaining the first rectangular area information of renewal when showing Data Update, and described the first rectangular area information comprises the first rectangular area data message and the first rectangular area positional information in described demonstration data;
The second storage unit is used for described the first rectangular area is saved in excessive resources, and this excessive resources has index; The memory source of described excessive resources for shining upon, copy the mapping that realizes on the described excessive resources the resource that is copied to by the resource that can not shine upon, the mapping relations of described excessive resources are that the index by excessive resources transmits, and can determine excessive resources by the index of described excessive resources;
The second transmitting element, be used for sending the index of described excessive resources and described the first rectangular area in the positional information of described demonstration data to the first interception module, so that described the first interception module can obtain according to the index of described excessive resources described the first rectangular area data message, and according to the positional information of described the first rectangular area in described demonstration data described demonstration data are upgraded.
10. device according to claim 9, it is characterized in that, described the second storage unit is also for the correspondence position that in the positional information of described demonstration data described the first rectangular area data message is saved in described excessive resources according to described the first rectangular area.
11. one kind shows data interception system, it is characterized in that, comprises the second interception module and the first interception module, wherein,
Described the second interception module is used for creating and the excessive resources that shows that data attribute is identical; When showing Data Update, obtain the first rectangular area information of renewal, described the first rectangular area information comprises the first rectangular area data message; Described the first rectangular area data message is saved in the described excessive resources, and this excessive resources has index; Send the index of described excessive resources to described the first interception module; Wherein, the memory source of described excessive resources for shining upon, copy the mapping that realizes on the described excessive resources the resource that is copied to by the resource that can not shine upon, the mapping relations of described excessive resources are that the index by excessive resources transmits, and can determine excessive resources by the index of described excessive resources;
Described the first interception module is used for the demonstration data after index according to described excessive resources obtains renewal.
12. demonstration data interception system according to claim 11 is characterized in that, described the first interception module also is used for the demonstration data after the described renewal are sent to display module for demonstration.
13. one kind shows data interception system, it is characterized in that, comprises the second interception module and the first interception module, wherein,
Described the second interception module is used for obtaining the first rectangular area information of renewal when showing Data Update, and described the first rectangular area information comprises the first rectangular area data message and the first rectangular area positional information in described demonstration data; Described the first rectangular area is saved in the excessive resources, and this excessive resources has index; Send index and described the first rectangular area positional information in described demonstration data of described excessive resources to the first interception module; Wherein, the memory source of described excessive resources for shining upon, copy the mapping that realizes on the described excessive resources the resource that is copied to by the resource that can not shine upon, the mapping relations of described excessive resources are that the index by excessive resources transmits, and can determine excessive resources by the index of described excessive resources;
Described the first interception module is used for obtaining described the first rectangular area data message according to the index of described excessive resources, and according to the positional information of described the first rectangular area in described demonstration data described demonstration data is upgraded.
14. demonstration data interception system according to claim 13 is characterized in that, described the first interception module also is used for the demonstration data after the described renewal are sent to display module for demonstration.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1384427A (en) * | 2001-05-06 | 2002-12-11 | 深圳市中兴通讯股份有限公司上海第二研究所 | Large-view blocking and buffering display method |
| CN1645472A (en) * | 2005-02-06 | 2005-07-27 | 威盛电子股份有限公司 | Displaying and controlling system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1384427A (en) * | 2001-05-06 | 2002-12-11 | 深圳市中兴通讯股份有限公司上海第二研究所 | Large-view blocking and buffering display method |
| CN1645472A (en) * | 2005-02-06 | 2005-07-27 | 威盛电子股份有限公司 | Displaying and controlling system and method |
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