CN102074221B - Method and device for displaying characters - Google Patents
Method and device for displaying characters Download PDFInfo
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- CN102074221B CN102074221B CN2011100020853A CN201110002085A CN102074221B CN 102074221 B CN102074221 B CN 102074221B CN 2011100020853 A CN2011100020853 A CN 2011100020853A CN 201110002085 A CN201110002085 A CN 201110002085A CN 102074221 B CN102074221 B CN 102074221B
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Abstract
The invention provides a method and device for displaying characters. The method comprises the following steps: a character registering queue and a searched character queue are created, wherein the character registering queue is used for storing rendered character images and the searched character queue is used for storing character codes corresponding to the rendered character images; starting signals are sent to a foreground thread controller and a background thread controller respectively; the foreground thread controller responds to the starting signal, reads the character codes corresponding to the characters input by a user and sends the character codes to the background thread controller; the background thread controller responds to the starting signal, receives the character codes sent by the foreground thread controller and traverses the character queue to search whether the character codes are stored in the character queue, and if so, the background thread controller obtains the rendered character images corresponding to the character codes from the character registering queue and sending the rendered character images to the foreground thread controller; and the foreground thread controller receives the rendered character images sent by the background thread controller, corresponding to the character codes and outputs the rendered character images to a foreground rendering screen to be displayed. The embodiment of the invention has the beneficial effect of improving the character displaying speed.
Description
Technical field
The present invention relates to the character display technique field, relate in particular to a kind of character display method and device, be applied to embedded system.
Background technology
In embedded system, character display method mainly comprises two steps, and first step is to read the pairing character code of character of user's input; Second step is from the character repertoire rule, to obtain corresponding character repertoire rule above-mentioned character code is generated corresponding characters rendering image and demonstration.
The inventor finds in practice, in the above-mentioned character display method, all need from the character repertoire rule, obtain corresponding character repertoire rule during each character display and generate the corresponding characters rendering image and show, causes the character display speed lower.
Summary of the invention
To above-mentioned defective, a kind of character display method and device are provided in the embodiment of the invention, be used to improve the character display speed.
Wherein, a kind of character display method comprises:
Create the character buffer queue and search the character formation; Said character buffer queue is used to deposit the character rendering image, saidly searches the character formation and is used to deposit said character rendering image corresponding characters coding;
Send enabling signal respectively to foreground thread controller and background thread controller;
Said foreground thread controller responds said enabling signal, reads the pairing character code of character of user's input and sends to said background thread controller;
Said background thread controller responds said enabling signal; Receive the character code that said foreground thread controller sends; Travel through and saidly search whether deposited said character code in the character formation; If have, then from said character buffer queue, obtain said character code corresponding characters rendering image and send to said foreground thread controller;
Said foreground thread controller receives the said character code corresponding characters rendering image that said background thread controller sends, and exports the foreground to and play up screen display.
As an optional embodiment, the character display method that the embodiment of the invention provides can also comprise:
Said background thread controller obtains said character code corresponding characters rendering image and sends to after the thread controller of said foreground from said character buffer queue, the head of the queue of searching the character formation to said deposited said character code by said background thread controller.
As an optional embodiment, if said searching do not deposited said character code as yet in the character formation, then the character display method that provides of the embodiment of the invention can also comprise:
Said background thread controller obtains said character code and deposits to said and search in the character formation from font file; And
Said background thread controller is deposited said character code corresponding characters rendering image to said character buffer queue; And
Said background thread controller sends to said foreground thread controller with said character code corresponding characters rendering image.
As an optional embodiment, said background thread controller obtains said character code and deposits to said searching in the character formation and comprises from font file:
Said background thread controller obtains said character code and deposits the head of the queue of searching the character formation to said from font file.
As an optional embodiment, the character display method that the embodiment of the invention provides can also comprise:
Said background thread controller obtains said character code and deposits to said and search after the character formation from font file, said background thread controller discharges and is positioned at the said character code of searching character formation team end; And
Said background thread controller is deposited said character code corresponding characters rendering image to said character buffer queue, and said background thread controller discharges and is positioned at the last character rendering image of said character buffer queue team.
Wherein, a kind of character display device comprises:
Create the unit, be used to create the character buffer queue and search the character formation; Said character buffer queue is used to deposit the character rendering image, saidly searches the character formation and is used to deposit said character rendering image corresponding characters coding;
Start unit is used for sending enabling signal respectively to backstage thread controller and foreground thread controller;
Said foreground thread controller is used to respond said enabling signal, reads the pairing character code of character of user's input and sends to said background thread controller;
Said background thread controller; Be used to respond said enabling signal; Receive the character code that said foreground thread controller sends; Travel through and saidly search whether deposited said character code in the character formation,, then from said character buffer queue, obtain said character code corresponding characters rendering image and send to said foreground thread controller if having;
Said foreground thread controller also is used to receive the said character code corresponding characters rendering image that said background thread controller sends, and exports the foreground to and play up screen;
Screen is played up on said foreground, is used to show the character rendering image of said foreground thread controller output.
As an optional embodiment, in the character display device that the embodiment of the invention provides,
Said background thread controller also is used for obtaining said character code corresponding characters rendering image and sending to after the thread controller of said foreground from said character buffer queue, said character code is deposited the head of the queue of searching the character formation to said.
As an optional embodiment, in the character display device that the embodiment of the invention provides,
Said background thread controller also is used for searching the character formation when not deposited said character code as yet said, from font file, obtains said character code and deposits to said and search in the character formation; And said character code corresponding characters rendering image deposited to said character buffer queue; And said character code corresponding characters rendering image sent to said foreground thread controller.
As an optional embodiment, in the character display device that the embodiment of the invention provides,
The said character code that said background thread controller obtains from font file is deposited the head of the queue of searching the character formation to said.
As an optional embodiment, in the character display device that the embodiment of the invention provides,
Said background thread controller also is used for obtaining said character code and depositing to said and search after the character formation from font file, discharges and is positioned at the said character code of searching character formation team end; And said character code corresponding characters rendering image deposited to said character buffer queue, discharge the character rendering image that is positioned at said character buffer queue team end.
Compared with prior art, the embodiment of the invention has following beneficial effect:
In the embodiment of the invention; Created the character buffer queue that is used to deposit the character rendering image be used to deposit character rendering image corresponding characters coding search the character formation; The background thread controller is after the character code that receives foreground thread controller transmission; Can travel through and search whether deposited said character code in the character formation; If have, then directly from the character buffer queue, obtain this character code corresponding characters rendering image and send to the foreground thread controller, export this character code corresponding characters rendering image to foreground by the foreground thread controller and play up screen display.The embodiment of the invention is in the character procedure for displaying; Need not from the character repertoire rule, to obtain corresponding character repertoire rule and generate the corresponding characters rendering image; But from the character buffer queue of creating, directly obtain the character rendering image, thereby can improve the character display speed widely.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention; To do to introduce simply to the accompanying drawing of required use among the embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of a kind of image display method of providing in the embodiment of the invention;
Fig. 2 is the structural representation of a kind of image display apparatus of providing in the embodiment of the invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
The method and the device that provide a kind of picture to show in the embodiment of the invention can be applied to embedded system, can improve the picture display speed through this method and apparatus.Below be elaborated respectively.
Embodiment one:
See also Fig. 1, Fig. 1 is the schematic flow sheet of a kind of image display method of providing in the embodiment of the invention.As shown in Figure 1, this method can may further comprise the steps:
101, create character buffer queue and search the character formation; Wherein, the character buffer queue is used to deposit the character rendering image, searches the character formation and is used to deposit character rendering image corresponding characters coding;
For instance, the embodiment of the invention can mark off first storage space and second storage space from the buffer memory of embedded system, wherein, the first storage space effect character buffer queue, second storage space is as searching the character formation.
Perhaps, the embodiment of the invention also can utilize in the embedded system storage chips such as flash chip as the character buffer queue with search the character formation.
102, send enabling signal respectively to backstage thread controller and foreground thread controller;
For instance; Can pass through Intelligent Platform Management Bus (Intelligent Platform Management Bus; IPMB) send enabling signal respectively to backstage thread controller and foreground thread controller, send enabling signal through IPMB to backstage thread controller and foreground thread controller and can guarantee that the safety of enabling signal do not lose.Wherein, enabling signal is in order to notice background thread controller and foreground thread controller startup work.
In the present embodiment, a startup timer can be set, when the timing time that starts timer arrives preset value, send enabling signal to backstage thread controller and foreground thread controller through IPMB; Perhaps, receive the trigger messages that is used to indicate the transmission enabling signal of outside input, respond this trigger messages and send enabling signal through IPMB to backstage thread controller and foreground thread controller, the embodiment of the invention does not limit.
103, the foreground thread controller responds above-mentioned enabling signal, reads the pairing character code of character of user's input and sends to the background thread controller;
In the present embodiment; The character of user through character input window input can change into character corresponding characters coding and transmitted to the foreground thread controller; Thereby the foreground thread controller can read the pairing character code of character of user's input and send to the background thread controller after the above-mentioned enabling signal of response.
104, the background thread controller responds above-mentioned enabling signal; Receive the character code that the foreground thread controller sends; Traversal searches whether deposited this character code in the character formation; If have, then from the character buffer queue, obtain this character code corresponding characters rendering image and send to the foreground thread controller.
In the present embodiment, the character code corresponding characters rendering image that the background thread controller obtains from the character buffer queue has preset sharpness, and this preset sharpness can be accepted and appreciated for the user.
As an optional embodiment; In the character display method that the embodiment of the invention provides; The background thread controller obtains this character code corresponding characters rendering image and sends to after the thread controller of foreground from the character buffer queue; The background thread controller can be deposited this character code to the head of the queue of searching the character formation, and promptly the background thread controller can be updated to the head of the queue of searching the character formation with the memory location of this character code in searching the character formation.In the embodiment of the invention; The character of user's input is generally considered to be the character that the user usually need use; And the background thread controller is after the pairing character code of character of the user's input that receives foreground thread controller transmission; Generally be to begin to travel through wholely search whether deposited this character code the character formation from the head of the queue of searching the character formation; And the backstage thread controller obtains this character code corresponding characters rendering image and sends to after the thread controller of foreground from the character buffer queue; This character code is deposited to the head of the queue of searching the character formation; Can improve the pairing character-coded efficient of same character that next time from search the character formation, finds user's input, in other words, search the character formation in the embodiment of the invention and have Memorability; Can and search the head of the queue of character formation with the pairing character code storage of the character that the user often imports, so that the background thread controller can be found the pairing character code of character of user's input soon from search the character formation.
104, the foreground thread controller receives the character code corresponding characters rendering image that the background thread controller sends, and exports the foreground to and play up screen display.
As an optional embodiment; In the character display method that the embodiment of the invention provides; Find after searching the character formation if background thread controller traversal is whole; In searching the character formation, do not deposited above-mentioned character code as yet, then the background thread controller can obtain above-mentioned character code and deposit to searching in the character formation from font file; And the background thread controller can be deposited above-mentioned character code corresponding characters rendering image to the character buffer queue; And then the background thread controller can send to the foreground thread controller with above-mentioned character code corresponding characters rendering image; Make the foreground thread controller can receive the character code corresponding characters rendering image that the background thread controller sends, and export the foreground to and play up screen display.
As an optional embodiment; In the character display method that the embodiment of the invention provides; The background thread controller obtains from font file after the above-mentioned character code; Can above-mentioned character code be deposited to the head of the queue of searching the character formation, improve the background thread controller and inquire about identical character-coded efficient next time.
As an optional embodiment; In the character display method that the embodiment of the invention provides; The background thread controller obtains above-mentioned character code and deposits after searching the character formation from font file, the background thread controller can discharge and be positioned at the character code of searching character formation team end; And the background thread controller is deposited above-mentioned character code corresponding characters rendering image to the character buffer queue; The background thread controller can discharge the character rendering image that is positioned at character buffer queue team end, thereby makes and search the character formation and character buffer queue team reserves the more free storage space as much as possible.
In the embodiment of the invention one; Created the character buffer queue that is used to deposit the character rendering image be used to deposit character rendering image corresponding characters coding search the character formation; The background thread controller is after the character code that receives foreground thread controller transmission; Can travel through and search whether deposited said character code in the character formation; If have, then directly from the character buffer queue, obtain this character code corresponding characters rendering image and send to the foreground thread controller, export this character code corresponding characters rendering image to foreground by the foreground thread controller and play up screen display.The embodiment of the invention is in the character procedure for displaying; Need not from the character repertoire rule, to obtain corresponding character repertoire rule and generate the corresponding characters rendering image; But from the character buffer queue of creating, directly obtain the character rendering image, thereby can improve the character display speed widely.
Embodiment two:
See also Fig. 2, Fig. 2 is the structural representation of a kind of image display apparatus of providing in the embodiment of the invention.Wherein, the image display apparatus that provides in the present embodiment can be used as the part of embedded system, is used to control picture and shows.Wherein, this image display apparatus can comprise:
Create unit 201, be used to create the character buffer queue and search the character formation; Wherein, the character buffer queue is used to deposit the character rendering image, searches the character formation and is used to deposit character rendering image corresponding characters coding;
For instance, create unit 201 and can from the buffer memory of embedded system, mark off first storage space and second storage space, wherein, the first storage space effect character buffer queue, second storage space is as searching the character formation.
Start unit 202 is used for sending enabling signal respectively to foreground thread controller 203 and background thread controller 204;
For instance; Start unit 202 can send enabling signal respectively to backstage thread controller 204 and foreground thread controller 203 through IPMB, sends enabling signals through IPMB to backstage thread controller 204 and foreground thread controller 203 and can guarantee that the safety of enabling signal do not lose.Wherein, enabling signal is in order to notice background thread controller 204 and the 203 startup work of foreground thread controller.
In the present embodiment, a startup timer can be set, when the timing time that starts timer arrived preset value, start unit 202 can send enabling signal to backstage thread controller 204 and foreground thread controller 203 through IPMB; Perhaps, start unit 202 receives the trigger messages that is used to indicate the transmission enabling signal of outside input, responds this trigger messages and sends enabling signal through IPMB to backstage thread controller 204 and foreground thread controller 203, and present embodiment does not limit.
Foreground thread controller 203 is used to respond above-mentioned enabling signal, reads the pairing character code of character of user's input and sends to background thread controller 204;
Background thread controller 204; Be used to respond above-mentioned enabling signal; Receive the character code that foreground thread controller 203 sends; Traversal searches whether deposited above-mentioned character code in the character formation, if having, then from the character buffer queue, obtains above-mentioned character code corresponding characters rendering image and sends to foreground thread controller 203;
Foreground thread controller 203 also is used to receive the character code corresponding characters rendering image that background thread controller 204 sends, and exports the foreground to and play up screen 205;
Screen 205 is played up on the foreground, is used for the character rendering image of display foreground thread controller 203 outputs.
As an optional embodiment, in the character display device that the embodiment of the invention provides,
Background thread controller 204; Also be used for obtaining above-mentioned character code corresponding characters rendering image and sending to after the foreground thread controller 203 from the character buffer queue; Above-mentioned character code is deposited to the head of the queue of searching the character formation; Can improve the pairing character-coded efficient of same character that next time from search the character formation, finds user's input
As an optional embodiment, in the character display device that the embodiment of the invention provides,
Background thread controller 204 also is used for searching the character formation when not deposited above-mentioned character code as yet, from font file, obtains above-mentioned character code and deposits to searching in the character formation; And character code corresponding characters rendering image deposited to the character buffer queue; And above-mentioned character code corresponding characters rendering image sent to foreground thread controller 203.
As an optional embodiment, in the character display device that the embodiment of the invention provides,
The character code that background thread controller 204 obtains from font file can be deposited to the head of the queue of searching the character formation.
As an optional embodiment, in the character display device that the embodiment of the invention provides,
Background thread controller 204 also is used for obtaining above-mentioned character code and depositing after searching the character formation from font file, discharges and is positioned at the character code of searching character formation team end; And above-mentioned character code corresponding characters rendering image deposited to the character buffer queue, discharge the character rendering image that is positioned at character buffer queue team end.
In the embodiment of the invention two; Create unit 201 created the character buffer queue that is used to deposit the character rendering image be used to deposit character rendering image corresponding characters coding search the character formation; Background thread controller 204 is after the character code that receives 203 transmissions of foreground thread controller; Can travel through and search whether deposited said character code in the character formation; If have, then directly from the character buffer queue, obtain this character code corresponding characters rendering image and send to foreground thread controller 203, export this character code corresponding characters rendering image to foreground by foreground thread controller 203 and play up screen 205 demonstrations.The embodiment of the invention is in the character procedure for displaying; Need not from the character repertoire rule, to obtain corresponding character repertoire rule and generate the corresponding characters rendering image; But from the character buffer queue of creating, directly obtain the character rendering image, thereby can improve the character display speed widely.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be accomplished through the relevant hardware of programmed instruction; Aforesaid program can be stored in the computer read/write memory medium; This program the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: flash disk, ROM (read-only memory) (Read-Only Memory, ROM), random access device (Random Access Memory, RAM), various media that can be program code stored such as magnetic disc or CD.
More than a kind of image display method and the device that is provided in the embodiment of the invention carried out detailed introduction; Used concrete sample among this paper principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (2)
1. a character display method is characterized in that, comprising:
Create the character buffer queue and search the character formation; Said character buffer queue is used to deposit the character rendering image, saidly searches the character formation and is used to deposit said character rendering image corresponding characters coding;
Send enabling signal respectively to foreground thread controller and background thread controller;
Said foreground thread controller responds said enabling signal, reads the pairing character code of character of user's input and sends to said background thread controller;
Said background thread controller responds said enabling signal; Receive the character code that said foreground thread controller sends; Travel through and saidly search whether deposited said character code in the character formation; If have, then from said character buffer queue, obtain said character code corresponding characters rendering image and send to said foreground thread controller;
Said foreground thread controller receives the said character code corresponding characters rendering image that said background thread controller sends, and exports the foreground to and play up screen display;
Said method also comprises:
Said background thread controller obtains said character code corresponding characters rendering image and sends to after the thread controller of said foreground from said character buffer queue, the head of the queue of searching the character formation to said deposited said character code by said background thread controller;
If said searching do not deposited said character code as yet in the character formation, then said method also comprises:
Said background thread controller obtains said character code and deposits to said and search in the character formation from font file; And
Said background thread controller is deposited said character code corresponding characters rendering image to said character buffer queue; And
Said background thread controller sends to said foreground thread controller with said character code corresponding characters rendering image;
Said background thread controller obtains said character code and deposits to said searching in the character formation and comprises from font file:
Said background thread controller obtains said character code and deposits the head of the queue of searching the character formation to said from font file;
Said method also comprises:
Said background thread controller obtains said character code and deposits to said and search after the character formation from font file, said background thread controller discharges and is positioned at the said character code of searching character formation team end; And
Said background thread controller is deposited said character code corresponding characters rendering image to said character buffer queue, and said background thread controller discharges and is positioned at the last character rendering image of said character buffer queue team.
2. a character display device is characterized in that, comprising:
Create the unit, be used to create the character buffer queue and search the character formation; Said character buffer queue is used to deposit the character rendering image, saidly searches the character formation and is used to deposit said character rendering image corresponding characters coding;
Start unit is used for sending enabling signal respectively to backstage thread controller and foreground thread controller;
Said foreground thread controller is used to respond said enabling signal, reads the pairing character code of character of user's input and sends to said background thread controller;
Said background thread controller; Be used to respond said enabling signal; Receive the character code that said foreground thread controller sends; Travel through and saidly search whether deposited said character code in the character formation,, then from said character buffer queue, obtain said character code corresponding characters rendering image and send to said foreground thread controller if having;
Said foreground thread controller also is used to receive the said character code corresponding characters rendering image that said background thread controller sends, and exports the foreground to and play up screen;
Screen is played up on said foreground, is used to show the character rendering image of said foreground thread controller output;
Said background thread controller also is used for obtaining said character code corresponding characters rendering image and sending to after the thread controller of said foreground from said character buffer queue, said character code is deposited the head of the queue of searching the character formation to said;
Said background thread controller also is used for searching the character formation when not deposited said character code as yet said, from font file, obtains said character code and deposits to said and search in the character formation; And said character code corresponding characters rendering image deposited to said character buffer queue; And said character code corresponding characters rendering image sent to said foreground thread controller;
The said character code that said background thread controller obtains from font file is deposited the head of the queue of searching the character formation to said;
Said background thread controller also is used for obtaining said character code and depositing to said and search after the character formation from font file, discharges and is positioned at the said character code of searching character formation team end; And said character code corresponding characters rendering image deposited to said character buffer queue, discharge the character rendering image that is positioned at said character buffer queue team end.
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| CN2011100020853A CN102074221B (en) | 2011-01-06 | 2011-01-06 | Method and device for displaying characters |
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| CN2011100020853A CN102074221B (en) | 2011-01-06 | 2011-01-06 | Method and device for displaying characters |
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| CN103123718B (en) * | 2011-11-21 | 2016-06-22 | 腾讯科技（深圳）有限公司 | A kind of image processing method and system |
| CN103838501A (en) * | 2012-11-20 | 2014-06-04 | 联想(北京)有限公司 | Information processing method and electronic device |
| EP2784771A1 (en) * | 2013-03-25 | 2014-10-01 | Samsung Electronics Co., Ltd. | Display apparatus and method of outputting text thereof |
| CN104951097A (en) * | 2014-03-27 | 2015-09-30 | 精工爱普生株式会社 | Character input apparatus, tape printing apparatus and character input method |
| CN105148519B (en) * | 2015-08-05 | 2018-09-11 | 北京乐动卓越科技有限公司 | A kind of word rendering intent in games and system |
| CN114885202A (en) | 2019-08-28 | 2022-08-09 | 腾讯数码（天津）有限公司 | Character string display processing method, device, terminal and storage medium |
| CN112433695B (en) * | 2020-12-02 | 2021-11-23 | 北京麟卓信息科技有限公司 | Android system DPI self-adjusting method and device on Linux platform |
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| US5781714A (en) * | 1994-05-27 | 1998-07-14 | Bitstream Inc. | Apparatus and methods for creating and using portable fonts |
| US10452756B2 (en) * | 2006-09-29 | 2019-10-22 | Oath Inc. | Platform for rendering content for a remote device |
| CN101183281B (en) * | 2007-12-26 | 2011-04-13 | 腾讯科技（深圳）有限公司 | Method for inputting word related to candidate word in input method and system |
| US20090237406A1 (en) * | 2008-03-21 | 2009-09-24 | Chun-Chia Chen | Character rendering system |
| CN101625848B (en) * | 2009-07-28 | 2011-06-22 | 宁波新然电子信息科技发展有限公司 | Realization method of vector font library oriented to embedded platform |
| CN101794566B (en) * | 2010-01-08 | 2012-08-29 | 青岛海信移动通信技术股份有限公司 | Method and related device for determining font data of character to be displayed in mobile terminal |
| CN101833542B (en) * | 2010-04-21 | 2013-03-20 | 中兴通讯股份有限公司 | Method and device for rendering fonts of user interface |
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