CN102004621B - Graphic display method, device and system - Google Patents
Graphic display method, device and system Download PDFInfo
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- CN102004621B CN102004621B CN201010546322A CN201010546322A CN102004621B CN 102004621 B CN102004621 B CN 102004621B CN 201010546322 A CN201010546322 A CN 201010546322A CN 201010546322 A CN201010546322 A CN 201010546322A CN 102004621 B CN102004621 B CN 102004621B
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Abstract
The invention provides a graphic display method, a graphic display device and a graphic display system. The method comprises the following steps of: requesting transfer hardware to transfer an updated rectangle of a graph to a backup display memory from a drawing memory; receiving a transfer action completion interrupt signal of the transfer hardware, and setting a switchable flag to be true; and receiving a blackout area interrupt signal of display hardware, and configuring an address of the current display memory according to the switchable flag. The device comprises a request unit for requesting the transfer hardware to transfer the updated rectangle of the graph to the backup display memory from the drawing memory, a receiving unit for receiving the transfer action completion interrupt signal of the transfer hardware and the blackout area interrupt signal of the display hardware, a flag unit used for setting the switchable flag and setting the switchable flag to be true if receiving the transfer action completion interrupt signal, and a configuration unit for configuring the address of the current display memory according to the switchable flag when receiving the blackout area interrupt signal of the display hardware. The invention improves display effect and makes the drawn contents not displayed on a screen directly.
Description
Technical field
The present invention relates to computer realm, relate in particular to a kind of graphic display method, device and system.
Background technology
In field of graphical displays, it is after graphic plotting is ready to complete that graphic presentation refreshes, and finally is shown to a process on the screen with drawing content.In refresh process, need software and hardware to cooperatively interact.The display effect of whole graphics system and performance depend on the design of refresh scheme.The prior art scheme be basically through graphics accelerator hardware or universal cpu use software algorithm with graphic plotting in the middle of an internal memory, read this internal memory by viewing hardware then, according to certain display standard, internal storage data is shown to screen.For overcoming the bad problem of display effect, industry will draw internal memory usually and display memory separates.After completing, accomplish the content that to draw internal memory by special hardware and move display memory.Owing to directly will draw internal memory and on display memory, move, too much cause and obviously see the drawing process problem though solved on the interface little element to a certain extent, still be the defective that screen is split in existence.And in the time will drawing internal memory and move display memory, CPU must wait and move hardware and accomplish and move action, and perhaps CPU oneself moves, and this has reduced the concurrent processing ability of system to a certain extent.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of graphic display method, device and system, can prior art in the technical matters of display effect difference.
For realizing above-mentioned purpose; The embodiment of the invention provides a kind of figure method for refreshing; Comprise: request is moved hardware the rectangle that refreshes of figure is moved the reserve display memory from drawing internal memory, and said reserve display memory is to be in the display memory that does not transmit the graph data state to viewing hardware; Receive the said action of moving of moving hardware and accomplish look-at-me, changeable sign is set to very; Receive the blanking zone look-at-me of viewing hardware, changeablely be masked as very according to said, the reserve display memory is configured to current display memory, said saving as in current is in the display memory that transmits the graph data state to display memory; According to address demonstration the refreshing rectangle of said current display memory, accomplish figure and refresh.
For realizing above-mentioned purpose; The embodiment of the invention also provides a kind of figure refreshing apparatus; Comprise: request unit; Request is moved hardware the rectangle that refreshes of figure is moved the reserve display memory from drawing internal memory, and said reserve display memory is to be in the display memory that does not transmit the graph data state to viewing hardware; Receiving element is used to receive the said blanking zone look-at-me that look-at-me and viewing hardware are accomplished in action of moving of moving hardware; Tag unit is used to be provided with changeable sign, if receive said move action when accomplishing look-at-me changeable sign be set to very; Dispensing unit changeablely is masked as very according to said when being used to receive the blanking zone look-at-me of viewing hardware, and the reserve display memory is configured to current display memory, and said saving as in current is in the display memory that transmits the graph data state to display memory; Display unit is used for address demonstration the refreshing rectangle according to said current display memory, accomplishes figure and refreshes.
For realizing above-mentioned purpose, the embodiment of the invention also provides a kind of figure updating system, comprising: draw internal memory, be used to store the figure of drafting; Display memory; Comprise current display memory and an above reserve display memory; Be used for the storage demonstration and use figure; Said reserve display memory is to be in not the display memory that transmits the graph data state to viewing hardware, and said saving as in current is in the display memory that transmits the graph data state to display memory; Move hardware, be used for said figure is moved said reserve display memory from said drafting internal memory, and after moving completion, send and move action completion look-at-me; Viewing hardware is used for address demonstration the refreshing rectangle according to said current display memory, accomplishes figure and refreshes, and after showing completion, send the blanking zone look-at-me; Central processing unit is used to ask to move hardware the rectangle that refreshes of figure is moved the reserve display memory from drawing internal memory; Receive the said action completion look-at-me of moving, changeable sign is set to very; Receive the blanking zone look-at-me,, the reserve display memory is configured to current display memory according to said changeable being masked as very.
Embodiments of the invention are through being provided with current display memory and reserve display memory, and accomplish the switching of back execution display memory through changeable sign in carrying, have improved display effect, make drawn content can directly be shown on the screen at no time.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, does not constitute qualification of the present invention.In the accompanying drawings:
Fig. 1 is the schematic flow sheet of the embodiment of the invention one figure method for refreshing;
The concrete operations process flow diagram that Fig. 2 refreshes for request in the embodiment of the invention one;
Fig. 3 is the concrete operations process flow diagram of configuration display memory in the embodiment of the invention one;
Fig. 4 is the structural representation of the embodiment of the invention two figure refreshing apparatus;
Fig. 5 is the preferred implementation structural representation of the embodiment of the invention two figure refreshing apparatus;
Fig. 6 is the structural representation of the embodiment of the invention three figure updating systems.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention is clearer,, the embodiment of the invention is explained further details below in conjunction with embodiment and accompanying drawing.At this, illustrative examples of the present invention and explanation thereof are used to explain the present invention, but not as to qualification of the present invention.
Embodiment one
Present embodiment provides a kind of figure method for refreshing, and is as shown in Figure 1, and this method comprises:
Step 101: the rectangle that refreshes of figure is moved the reserve display memory from drawing internal memory;
This step is carried out by the request unit in the figure refreshing apparatus (like CPU), tag unit, judging unit and computing unit.Wherein, The concrete execution of request unit refreshed process, calls the refresh interface request and refreshes, i.e. the hardware execution is once moved in request will draw the action of moving that the figure on the internal memory is moved the reserve display memory; Be responsible for data consistent of reserve display memory and current display memory, to guarantee normal demonstration.The reserve display memory is to be in not the display memory that transmits the graph data state to viewing hardware, saves as in current to be in the display memory that transmits the graph data state to display memory.Moving hardware can be that 2D draws accelerating module, and moving fast of asynchronous system is provided, and moves to accomplish to report the completion look-at-me afterwards.Asynchronous system is meant that directly submitting blit when refreshing the process transfer refresh interface orders to moving hardware, and CPU does not wait it to finish and just handles other thing, make CPU with move concurrent the doing work of hardware.Concrete as, just submit the action of moving of once moving hardware at every turn.When if refresh requests is come for the second time, do not show owing to move the blanking look-at-me of not intact or viewing hardware to making the last time not move, also just submit and newly move operation.
Concrete operations are as shown in Figure 2, and the changeable sign of tag unit is set to vacation; Whether the judgment unit judges display memory switches; If display memory switches; The request unit request is moved hardware figure is refreshed rectangle from drawing internal memory and move the reserve display memory and will accumulate rectangle and move the reserve display memory from drafting internal memory or current display memory; If display memory switches, the request unit request is moved hardware the rectangle that refreshes of figure is moved the reserve display memory, computing unit calculating cumulative rectangle from drawing internal memory.The computing method of accumulation rectangle are that a plurality of rectangles merge or write down a plurality of rectangles respectively with array.
Wherein refreshing rectangle is: the needs of up-to-date one-time request are moved a rectangular area that shows buffer.The accumulative total rectangle then is the rectangular area set that the front has been refreshed several times.Refresh the refreshing after the completion of rectangle, merge in the accumulation rectangle.
Step 102: receive the said action of moving of moving hardware and accomplish look-at-me, changeable sign is set to very;
This step is carried out by the tag unit in the figure refreshing apparatus.Wherein, changeable sign can be variable as switching value in the internal memory, and for example when being 1, expression needs the switching displayed internal memory, is 0 o'clock, and expression is not switched.
Step 103: receive the blanking zone look-at-me of viewing hardware,, the reserve display memory is configured to current display memory according to said changeable being masked as very;
This step has dispensing unit, reading unit and the tag unit in the figure refreshing apparatus to carry out.Wherein, viewing hardware has a space that is called blanking zone after every demonstration one frame, and in this time period, viewing hardware can be with content processed on the display memory to screen.Viewing hardware reports the blanking zone look-at-me to CPU, and notice CPU arrives in this space.
Concrete operations are as shown in Figure 3, and reading unit reads said changeable sign.If changeable being masked as very, dispensing unit is the address of current display memory with the address configuration of reserve display memory; Tag unit is changed to vacation with said changeable sign.If can connect switching mark for false, dispensing unit does not dispose the address of display memory.
Step 104:, accomplish figure and refresh according to address demonstration the refreshing rectangle of said current display memory.
This step has the display unit in the figure refreshing apparatus to carry out.
Embodiments of the invention are through being provided with current display memory and reserve display memory, and accomplish the switching of back execution display memory through changeable sign in carrying, have improved display effect, make drawn content can directly be shown on the screen at no time; Take asynchronous system to move through moving hardware, improved the concurrent ability of CPU, make CPU not wait for and move completion, just can handle other thing.
Embodiment two
Present embodiment provides a kind of figure refreshing apparatus, and is as shown in Figure 4, and this device 400 comprises:
Receiving element 402 is used to receive the said blanking zone look-at-me that look-at-me and viewing hardware are accomplished in action of moving of moving hardware;
Dispensing unit 404; When being used to receive the blanking zone look-at-me of viewing hardware according to said changeable be masked as true; The reserve display memory is configured to current display memory, and said saving as in current is in the display memory that transmits the graph data state to display memory;
As shown in Figure 5, the figure refreshing apparatus that present embodiment provides preferably also comprises: judging unit 405 is used to judge whether display memory switches; Computing unit 406 calculates the accumulative total rectangle when being used for display memory and switching, the computing method of accumulation rectangle are that a plurality of rectangles merge or write down a plurality of rectangles respectively with array; Reading unit 407 is used to read said changeable sign.
Further specify the preferred operations process of the figure refreshing apparatus of present embodiment below.Tag unit 403 changeable signs are set to vacation; Judging unit 405 judges whether display memory switches; If display memory switches; Request unit 401 request is moved hardware figure is refreshed rectangle from drawing internal memory and move the reserve display memory and will accumulate rectangle and move the reserve display memory from drafting internal memory or current display memory; If display memory switches, request unit 401 requests are moved hardware the rectangle that refreshes of figure are moved the reserve display memory, computing unit 406 calculating cumulative rectangles from drawing internal memory.Receiving element 402 receives the action of moving of moving hardware and accomplishes look-at-me, and tag unit 403 changeable signs are set to very.Receiving element 402 receives the blanking zone look-at-me of viewing hardware, and reading unit 407 reads said changeable sign.If changeable being masked as very, dispensing unit 404 is the address of current display memory with the address configuration of reserve display memory, and tag unit 403 is changed to vacation with said changeable sign then.If can connect switching mark for false, dispensing unit 404 does not dispose the address of display memory.
Wherein, Request unit 401 concrete execution when refreshing process; Calling the refresh interface request refreshes; I.e. request is once moved hardware and is carried out and will draw the action of moving that the figure on the internal memory is moved the reserve display memory, and the data of responsible reserve display memory and current display memory consistent is to guarantee normal demonstration.Moving hardware can be that 2D draws accelerating module, and moving fast of asynchronous system is provided, and moves to accomplish to report the completion look-at-me afterwards.Asynchronous system is meant that directly submitting blit when refreshing the process transfer refresh interface orders to moving hardware, and CPU does not wait it to finish and just handles other thing, make CPU with move concurrent the doing work of hardware.Concrete as, just submit the action of moving of once moving hardware at every turn.When if refresh requests is come for the second time, do not show owing to move the blanking look-at-me of not intact or viewing hardware to making the last time not move, also just submit and newly move operation.
Embodiments of the invention are through being provided with current display memory and reserve display memory, and accomplish the switching of back execution display memory through changeable sign in carrying, have improved display effect, make drawn content can directly be shown on the screen at no time; Take asynchronous system to move through moving hardware, improved the concurrent ability of CPU, make CPU not wait for and move completion, just can handle other thing.
Embodiment three
Present embodiment provides a kind of figure updating system, and is as shown in Figure 6, and this system comprises:
Draw internal memory 602, be used to store the figure of drafting;
Move hardware 603, be used for said figure is moved said reserve display memory from said drafting internal memory, and after moving completion, send and move action completion look-at-me;
Viewing hardware 605 is used for address demonstration the refreshing rectangle according to said current display memory, accomplishes figure and refreshes, and after showing completion, send the blanking zone look-at-me;
Wherein, the reserve display memory can be more than one, and in full accord with the amount of capacity of current display memory.
Moving hardware 603 can be that 2D draws accelerating module, and moving fast of asynchronous system is provided, and moves to accomplish to report the completion look-at-me afterwards.Asynchronous system is meant that directly submitting blit when refreshing the process transfer refresh interface orders to moving hardware, and CPU does not wait it to finish and just handles other thing, make CPU with move concurrent the doing work of hardware.Concrete as, just submit the action of moving of once moving hardware at every turn.When if refresh requests is come for the second time, do not show owing to move the blanking look-at-me of not intact or viewing hardware to making the last time not move, also just submit and newly move operation.
Viewing hardware 604 has a space that is called blanking zone after every demonstration one frame.In this time period, viewing hardware 604 can be with content processed on the display memory to screen.Viewing hardware 604 reports the blanking zone look-at-me to CPU, and notice CPU arrives in this space.
The specific operation process of the figure updating system that following mask body present embodiment provides.The changeable sign of central processing unit 605 (CPU) is set to vacation; Judge whether display memory 602 switches; If display memory 602 switches; Request is moved hardware 603 figure is refreshed rectangle from drawing internal memory 601 and move the reserve display memory and will accumulate rectangle and move the reserve display memory from drafting internal memory 601 or current display memory; If display memory switches, request is moved hardware the rectangle that refreshes of figure is moved the reserve display memory, the calculating cumulative rectangle from drawing internal memory.Receive the action of moving of moving hardware 603 and accomplish look-at-me, changeable sign is set to very.Receive the blanking zone look-at-me of viewing hardware 604, read said changeable sign.If changeablely be masked as very, be the address of current display memory with the address configuration of reserve display memory, then said changeable sign is changed to vacation.If can connect switching mark for false, the address that does not then dispose display memory.Wherein refreshing rectangle is: the needs of up-to-date one-time request are moved a rectangular area that shows buffer.The accumulative total rectangle then is the rectangular area set that the front has been refreshed several times.Refresh the refreshing after the completion of rectangle, merge in the accumulation rectangle.
Embodiments of the invention are through being provided with current display memory and reserve display memory, and accomplish the switching of back execution display memory through changeable sign in carrying, have improved display effect, make drawn content can directly be shown on the screen at no time; Take asynchronous system to move through moving hardware, improved the concurrent ability of CPU, make CPU not wait for and move completion, just can handle other thing.
Above-described specific embodiment; The object of the invention, technical scheme and beneficial effect have been carried out further explain, and institute it should be understood that the above is merely specific embodiment of the present invention; And be not used in qualification protection scope of the present invention; All within spirit of the present invention and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (16)
1. a figure method for refreshing is characterized in that, this method comprises:
If display memory carried out switching; Then with figure refresh rectangle from drawing internal memory and move the reserve display memory and will accumulate rectangle and move the reserve display memory, said reserve display memory is the display memory that is in not to viewing hardware transmission graph data state;
Receive the action of moving of moving hardware and accomplish look-at-me, changeable sign is set to very;
Receive the blanking zone look-at-me of viewing hardware, according to said changeable being masked as very, the reserve display memory is configured to current display memory, said current display memory is to be in the display memory that transmits the graph data state to viewing hardware;
According to address demonstration the refreshing rectangle of said current display memory, accomplish figure and refresh;
If display memory switches, request is moved hardware the rectangle that refreshes of figure is moved the reserve display memory, the calculating cumulative rectangle from drawing internal memory.
2. method according to claim 1 is characterized in that, figure refreshed rectangle from drawing internal memory and move the reserve display memory and will accumulate rectangle and move the reserve display memory and also comprise before:
Changeable sign is set to vacation;
If display memory switches:
Request is moved hardware and is moved.
3. method according to claim 2 is characterized in that: said accumulation rectangle comes from said drafting internal memory or said current display memory.
4. method according to claim 1 is characterized in that: the computing method of said accumulation rectangle are that a plurality of rectangles merge or write down a plurality of rectangles respectively with array.
5. method according to claim 1 and 2 is characterized in that: ask the said hardware of moving to take asynchronous system to move.
6. method according to claim 1 is characterized in that, the reserve display memory is configured to current display memory comprises:
Read said changeable sign;
If changeablely be masked as very, be the address of current display memory with the address configuration of reserve display memory;
Said changeable sign is changed to vacation.
7. method according to claim 6 is characterized in that, also comprises:
If changeable vacation, the address that does not dispose current display memory of being masked as.
8. a figure refreshing apparatus is characterized in that, this device comprises:
Judging unit is used to judge whether display memory switches;
Request unit; If display memory switches; Be used for the rectangle that refreshes of figure is moved the reserve display memory from drawing internal memory; If display memory switches, be used to ask to move hardware the rectangle that refreshes of figure is moved the reserve display memory from drawing internal memory, said reserve display memory is to be in the display memory that does not transmit the graph data state to viewing hardware;
Computing unit, calculating cumulative rectangle when being used for display memory and switching;
Receiving element is used to receive the said blanking zone look-at-me that look-at-me and viewing hardware are accomplished in action of moving of moving hardware;
Tag unit is used to be provided with changeable sign, if receive said move action when accomplishing look-at-me changeable sign be set to very;
Dispensing unit; When being used to receive the blanking zone look-at-me of viewing hardware; According to said changeable being masked as very, the reserve display memory is configured to current display memory, said current display memory is to be in the display memory that transmits the graph data state to viewing hardware;
Display unit according to address demonstration the refreshing rectangle of said current display memory, is accomplished figure and is refreshed.
9. device according to claim 8 is characterized in that: said accumulation rectangle comes from said drafting internal memory or said current display memory.
10. device according to claim 8 is characterized in that: said computing unit adopts a plurality of rectangles to merge or calculates said accumulation rectangle with the mode that array writes down a plurality of rectangles respectively.
11. device according to claim 8 is characterized in that, also comprises:
Reading unit is used to read said changeable sign;
If changeable being masked as very, said dispensing unit is the address of current display memory with the address configuration of reserve display memory, and said then tag unit is changed to vacation with said changeable sign.
12. device according to claim 11 is characterized in that:
If changeablely be masked as vacation, said dispensing unit does not dispose the address of current display memory.
13. a figure updating system is characterized in that, this system comprises:
Draw internal memory, be used to store the figure of drafting;
Display memory comprises current display memory and an above reserve display memory, is used for storage and shows that using figure, said reserve display memory is to be in the display memory that does not transmit the graph data state to viewing hardware; Said current display memory is to be in the display memory that transmits the graph data state to viewing hardware;
Move hardware; If display memory switches; Be used for said figure refreshed rectangle from drawing internal memory and move the reserve display memory and will accumulating rectangle and move the reserve display memory; And after moving completion, send and move action completion look-at-me, if display memory switches, be used for the rectangle that refreshes of figure is moved the reserve display memory from drawing internal memory;
Viewing hardware, the demonstration that is used for showing said current display memory refreshes rectangle with graphic presentation and refreshes to accomplish figure, and accomplishes back transmission blanking zone look-at-me showing;
Central processing unit, what be used to ask to move the just said figure of hardware refreshes rectangle from drawing internal memory and move the reserve display memory and will accumulating rectangle and move the reserve display memory; Receive the said action completion look-at-me of moving, changeable sign is set to very; Receive the blanking zone look-at-me,, the reserve display memory is configured to current display memory according to said changeable being masked as very; Calculating cumulative rectangle when display memory switches.
14. system according to claim 13 is characterized in that: comprise a said reserve display memory.
15. system according to claim 13 is characterized in that: the said hardware using asynchronous system of moving is moved.
16. system according to claim 13 is characterized in that: the capacity of current display memory and reserve display memory is in full accord.
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| CN201010546322A CN102004621B (en) | 2010-11-15 | 2010-11-15 | Graphic display method, device and system |
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| CN104571890B (en) * | 2013-10-10 | 2017-12-19 | 京微雅格（北京）科技有限公司 | A kind of touch-control slides display system, electronic equipment and display methods |
| CN104731653B (en) * | 2015-03-31 | 2018-09-25 | 上海盈方微电子有限公司 | A kind of Software on Drawing and hardware drafting dynamic switching method of Android display systems |
| CN110286992A (en) * | 2019-07-02 | 2019-09-27 | 中国工商银行股份有限公司 | The method and device that interface figure is redrawn |
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| CN1645472A (en) * | 2005-02-06 | 2005-07-27 | 威盛电子股份有限公司 | Displaying and controlling system and method |
| CN101471040A (en) * | 2007-12-25 | 2009-07-01 | 安凯（广州）软件技术有限公司 | Simulated overlapping surface implementing method based on MPU interface LCD module |
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| CN1645472A (en) * | 2005-02-06 | 2005-07-27 | 威盛电子股份有限公司 | Displaying and controlling system and method |
| CN101471040A (en) * | 2007-12-25 | 2009-07-01 | 安凯（广州）软件技术有限公司 | Simulated overlapping surface implementing method based on MPU interface LCD module |
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