CN102520937A - Method for optimizing image rendering between processes - Google Patents
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- CN102520937A CN102520937A CN2011103892045A CN201110389204A CN102520937A CN 102520937 A CN102520937 A CN 102520937A CN 2011103892045 A CN2011103892045 A CN 2011103892045A CN 201110389204 A CN201110389204 A CN 201110389204A CN 102520937 A CN102520937 A CN 102520937A
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Abstract
The invention discloses a method for optimizing image rendering between processes. The method comprises a window process and a decoding process, wherein the decoding process also comprises a decoding thread and a rendering thread; and wind operation and image decoding are separately performed from rendering. Thus, an image is displayed in a window from data; only one rendering operation is required; and compared with the prior art, at least a background rendering operation and a buffer read operation are performed. The decoding thread and the rendering thread are in the same process without crossing processes; the synchronization of decoding operation and rendering operation is facilitated; and the complexity of a system is reduced.
Description
Technical field
The present invention relates to the computer image processing technology field, particularly a kind ofly optimize the method that image is played up between process.
Background technology
Prior art is generally when the decoding rendering image; Adopt 2 kinds of methods: a kind ofly be an in-process completion decoding and play up that the window that this kind method is created can not lack dirigibility by other processes as playing up target; This just causes signal type of every switching, and just necessary switch window once; Another kind method is to use 2 processes, and one for decode/to play up process in advance, is used for image data decoding and plays up in advance, and obtain the view data after playing up in advance; Another is a show process, is used for receiving preparatory rendered image data and demonstration.In this method, show piece image, actual having carried out played up for twice, causes to show slow and system resource waste.。
Summary of the invention
The present invention proposes a kind of method that image is played up between process of optimizing,,, reach and reduce the purpose of playing up number of times, increase system efficiency through the method for using striding course to play up to the deficiency of prior art.
The present invention optimizes the method that image is played up between process, comprises window process and decoding process:
The windowing of said window process response user, begin to show the particular type image, stop to show the particular type image, moving window, change window size and close the window operation,
Said fenestration procedure comprises step:
Create window, obtain the id of the window of creating;
Give WinID with said id assignment,
Saidly stop to show the particular type image manipulation, comprise step:
Triggering the corresponding decoding process of current display image type quits work;
WinID is returned 0,
Saidly begin to show the particular type image manipulation, comprise step:
Carry out aforesaid operations and " stop to show the particular type image ";
Give WinID with said id assignment;
Obtain image type to be shown;
Trigger the corresponding decoding process of image to be displayed type and start working,
The window operation of said pass comprises step:
Carry out aforesaid operations and " stop to show the particular type image ";
Close window,
Every kind of corresponding said decoding process of image type, each said decoding process comprise decodes thread and plays up thread,
Said decoding process is started working according to following steps:
S0: saidly play up the drawing context WinContext that thread obtains WinID;
S1: the said thread of playing up is bound WinContext;
S2: the said thread of playing up obtains the wide and high of window, and is wide, high according to what get access to, upgrades the said drawing environment of playing up in the thread;
S3: the view data of said decoding thread decoding image to be displayed type, decoded said view data given play up thread;
S4: the said thread of playing up is rendered into window with said view data;
S5: repeat above-mentioned steps S2, S3, S4,
Said decoding process quits work according to following steps:
Said decoding thread stops decoding;
The said thread of playing up stops to play up;
Said thread and the WinContext of playing up breaks away from.
Preferably, said image type comprises IP image, local image, RGB image and stack display image.
The present invention optimizes the method that image is played up between process, comprises window process and decoding process, and the decoding process comprises the decoding thread again and play up thread, the decoding of window operation and image and play up the branch execution of coming.Like this, image, only need be played up once to showing at window from data, compares prior art, carries out a backstage at least less and plays up and once read buffer zone.And the decoding thread with play up in the same process of thread, striding course no longer, be convenient to decode and play up between two operations synchronously, reduced the complexity of system.
Description of drawings
Fig. 1 is that the present invention optimizes in the fenestration procedure process of image rendering method between process, the synoptic diagram of window process and the performed step of decoding process;
Fig. 2 be the present invention optimize image rendering method between process begin to show in the IP image manipulation procedure synoptic diagram of window process and the performed step of decoding process;
Fig. 3 is that the present invention optimizes in the pass window operating process of image rendering method between process the synoptic diagram of window process and the performed step of decoding process.
Embodiment
The objective of the invention is to overcome the shortcoming and defect of prior art,, reach and reduce the purpose of playing up number of times, increase system efficiency through the mode of using striding course to play up.Below in conjunction with accompanying drawing and embodiment is the present invention with Ei in detail.
The present invention optimizes the method that image is played up between process and comprises window process and decoding process, shares data between window process and the decoding process: window ID, i.e. WinID.
The window process is used to respond the windowing of user, begins to show the particular type image, stops to show the particular type image, moving window, change window size, close window, etc. operation.It creates window when response " windowing "; When " demonstration particular type image ", notify the decoding process corresponding to start working with the type image; When response " moving window, change window size ", change position of window, the wide high attribute of window; When response " pass window ", destroy window, and the notice decoding process corresponding with current display image type quits work.
1, windows
S0: create window, get access to the id of this window;
S1: give WinID with the id assignment.
2, stop to show the particular type image
S0: trigger the decoding process corresponding and quit work with current display image data type;
S1: WinID is returned 0.
3, begin to show the particular type image
S0: carry out aforesaid operations and " stop to show the particular type image ", stop to show the image of current type;
S1: give WinID with the id assignment;
S2: obtain the user and want the images displayed type;
S3: trigger the decoding process corresponding and start working with this picture data type.
As a preferred embodiment, said image type comprises IP image, local image, RGB image and stack display image etc.Before showing next types of image, elder generation that the decoding process of current type image is terminated.
4, moving window, change window size
Do not influence WinID and corresponding decoding process.
This operation possibly take place at any time, and stops to show the particular type image and begins to show that the operation of particular type image does not have precedence relationship.
5, close window
S0: carry out aforesaid operations and " stop to show the particular type image ", stop to show the image of current type;
S2: close window.
The decoding process has 2 functions: decoding is with the view data of this plug-in unit corresponding types, be rendered into the WinID window with decoded image, and correspondingly, there are 2 basic threads its inside: the decoding thread, play up thread.The decoding thread is used for decode image data; Playing up thread is used for view data is rendered into specified window.
The decoding process has 2 interfaces: begin, stop.
1, beginning
S0: the drawing context WinContext that obtains WinID;
S1: WinContext is tied to plays up in the thread, make and play up the thread WinID window of can drawing;
S2: obtain the wide and high of this window, wide, high according to what get access to, upgrade and play up the drawing environment in the thread; This step has determined to treat that rendered image data will be plotted in how wide, the how high window area, thereby has determined to treat wide, the high scaling of rendered image data; When window size changed, this step also makes played up the scaling that thread is adjusted rendering image as early as possible, prevented that image from showing the entanglement of flower screen.
S3: decode image data, view data given play up thread;
S4: play up thread view data is rendered into the WinID window
S5: repeat above-mentioned steps S2, S3, S4, until receiving " stopping " order.
Step S2 has determined to treat that rendered image data will be plotted in how wide, the how high window area, thereby has determined to treat wide, the high scaling of rendered image data; When window size changed, this step also makes played up the scaling that thread is adjusted rendering image as early as possible, prevented that image from showing the entanglement of flower screen.
2, stop
S0: stop decode image data;
S1: stop rendering image;
S2: will play up thread and WinContext and break away from.
For ease of describing, suppose that present system has IP picture decoding plug-in unit, picture stack to show plug-in unit and RGB decoding plug-in.Be elaborated through simulation practical operation step below.
(1), as shown in Figure 1 be in the fenestration procedure process, the synoptic diagram of window process and the performed step of decoding process.
A. window process
S0: create window, get access to the id of this window;
S1: give WinID with the id assignment;
B. the process of decoding
There is not operation.
(2), shown in Figure 2 is to begin to show in the operating process of particular type image-IP image the synoptic diagram of window process and the performed step of decoding process.
A. window process
S0: trigger IP picture decoding plug-in unit and start working;
B. the process of decoding
S0: the drawing context WinContext that obtains WinID;
S1: WinContext is tied to plays up in the thread, make and play up the thread WinID window of can drawing;
S2: obtain the wide and high of this window, wide, high according to what get access to, upgrade and play up the drawing environment in the thread;
S3: decode image data, view data given play up thread;
S4 plays up thread view data is rendered into the WinID window
S5: repeat above-mentioned steps S2, S3, S4, until receiving " stopping " order.
(3), begin to show that particular type image-picture stack shows.
A. window process
S0: current IP picture decoding process is quit work;
S1: trigger picture stack demonstration plug-in unit and start working;
B. the process of decoding
S0:IP image plug-in unit stops decode image data;
S1:IP image plug-in unit stops rendering image;
S2: play up thread and the WinContext of IP image plug-in unit are broken away from;
S3: the picture stack shows that plug-in unit obtains the drawing context WinContext of WinID;
S4: WinContext is tied to picture stack shows playing up in the thread of plug-in unit, what make that the picture stack shows plug-in unit plays up the thread WinID window of can drawing;
S5: obtain the wide and high of this window, wide, high according to what get access to, upgrade picture stack demonstration plug-in unit and play up the drawing environment in the thread;
S6: the picture stack shows the plug-in unit decode image data, gives picture stack demonstration plug-in unit with view data and plays up thread;
S7 picture stack demonstration plug-in unit is played up thread view data is rendered into the WinID window
S8: repeat above-mentioned steps S5, S6, S7, until receiving " stopping " order.
Above-mentioned steps S0～S2 is actual to have carried out the operation that stops IP image plug-in unit, the actual operation of carrying out " stack of beginning picture shows plug-in unit " of above-mentioned steps S3～S8.
(4) shown in Figure 3 is to close in the window operating process synoptic diagram of window process and the performed step of decoding process.
A. window process
S0: stop the picture stack and show plug-in unit;
S1: close window;
B. the process of decoding
S0: the picture stack shows that plug-in unit stops decode image data;
S1: the picture stack shows that plug-in unit stops rendering image;
S2: play up thread and WinContext disengaging with what picture stack showed plug-in unit.
Above-described embodiment of the present invention does not constitute the qualification to protection domain of the present invention.Any modification of within spirit of the present invention and principle, being done, be equal to replacement and improvement etc., all should be included within the claim protection domain of the present invention.
Claims (2)
1. optimize the method that image is played up between process for one kind, it is characterized in that, comprise window process and decoding process:
The windowing of said window process response user, begin to show the particular type image, stop to show the particular type image, moving window, change window size and close the window operation,
Said fenestration procedure comprises step:
Create window, obtain the id of the window of creating;
Give WinID with said id assignment,
Saidly stop to show the particular type image manipulation, comprise step:
Triggering the corresponding decoding process of current display image type quits work;
WinID is returned 0,
Saidly begin to show the particular type image manipulation, comprise step:
Carry out aforesaid operations and " stop to show the particular type image ";
Give WinID with said id assignment;
Obtain image type to be shown;
Trigger the corresponding decoding process of image to be displayed type and start working,
The window operation of said pass comprises step:
Carry out aforesaid operations and " stop to show the particular type image ";
Close window,
Every kind of corresponding said decoding process of image type, each said decoding process comprise decodes thread and plays up thread,
Said decoding process is started working according to following steps:
S0: saidly play up the drawing context WinContext that thread obtains WinID;
S1: the said thread of playing up is bound WinContext;
S2: the said thread of playing up obtains the wide and high of window, and is wide, high according to what get access to, upgrades the said drawing environment of playing up in the thread;
S3: the view data of said decoding thread decoding image to be displayed type, decoded said view data given play up thread;
S4: the said thread of playing up is rendered into window with said view data;
S5: repeat above-mentioned steps S2, S3, S4,
Said decoding process quits work according to following steps:
Said decoding thread stops decoding;
The said thread of playing up stops to play up;
Said thread and the WinContext of playing up breaks away from.
2. the method that image is played up between optimization process according to claim 1 is characterized in that, said image type comprises IP image, local image, RGB image and stack display image.
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Cited By (7)
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| CN103617027A (en) * | 2013-10-29 | 2014-03-05 | 合一网络技术(北京)有限公司 | Android-based method and system for constructing image rendering engine |
| CN103617031A (en) * | 2013-11-20 | 2014-03-05 | 广东威创视讯科技股份有限公司 | Image rendering method and image rendering device |
| CN103678526A (en) * | 2013-11-29 | 2014-03-26 | 贝壳网际（北京）安全技术有限公司 | Method and device for decoding images of browser and client |
| CN103942823A (en) * | 2014-02-27 | 2014-07-23 | 优视科技有限公司 | Game engine rendering method and device |
| CN104376016A (en) * | 2013-08-15 | 2015-02-25 | 腾讯科技（深圳）有限公司 | Method and device for inter-process rendering in browser |
| CN105426185A (en) * | 2015-11-13 | 2016-03-23 | 珠海格力节能环保制冷技术研究中心有限公司 | Dynamic image display processing method and system |
| CN107463370A (en) * | 2017-06-30 | 2017-12-12 | 百度在线网络技术（北京）有限公司 | Striding course rendering intent and system |
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| CN106959897A (en) * | 2017-02-16 | 2017-07-18 | 福建天泉教育科技有限公司 | A kind of optimization method and system based on Unity3D image renderings |
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| CN104376016B (en) * | 2013-08-15 | 2019-06-07 | 腾讯科技（深圳）有限公司 | Striding course rendering method and device in a kind of browser |
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| CN103942823A (en) * | 2014-02-27 | 2014-07-23 | 优视科技有限公司 | Game engine rendering method and device |
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| CN105426185A (en) * | 2015-11-13 | 2016-03-23 | 珠海格力节能环保制冷技术研究中心有限公司 | Dynamic image display processing method and system |
| CN107463370A (en) * | 2017-06-30 | 2017-12-12 | 百度在线网络技术（北京）有限公司 | Striding course rendering intent and system |
| CN107463370B (en) * | 2017-06-30 | 2021-08-27 | 百度在线网络技术（北京）有限公司 | Cross-process rendering method and system |
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