pandora buffering

A simple way to implement the dual buffering technique in OpenGL: 1. When calling the Glutinitdisplaymode function, turn on glut_double, which is Glutinitdisplaymode (Glut_rgb | glut_double);. This replaces our usual glut_single with glut_double, which means to use a double buffer instead of a single buffer. 2. When you call Glutdisplayfunc (display) to register a callback function, call Glutswapbuffers () to swap two buffer pointers after all the dra

PHP optimization, buffering, and compression. This article proposes practical solutions to optimize, buffer, and compress php (as the mainstream development language) as a popular Web programming language, php (as the current mainstream development language, this article provides practical solutions to optimize, buffer, and compress php (as the current mainstream development language ). As a popular Web programming language, the biggest advantage of

IntentCauses a sequence of sequential operations to occur instantaneously or synchronously.MotivationIn their minds, computers are order beasts. Its power comes from dividing the big work into many small steps, one after the other. Although generally, our users see a single instantaneous task or multitasking at the same time.A classic example, and every game engine will be involved in rendering. When the game draws the time, it has to do such a thing at once-distant mountains, undulating slopes,

For a newly-started PHP programmer, the PHP buffer is almost transparent. In their mind, an echo print_r function, the data will be ' swish ' a sound to fly to the browser, displayed. I have always been so simple to think. In fact, in the world of technology, has always been from simple to complex, perhaps those technical developers began to be just like you, but in the face of the brutal reality, have to adjust the strategy, in order to improve the efficiency of machine operation, finally think

Lien0000342014-08-251. file descriptor For the kernel, all opened files are referenced through the file descriptor. The file descriptor is a non-negative integer. When an existing file is opened or a new file is created, the kernel returns a file descriptor to the process. When reading or writing a file, use the file descriptor returned by open or creat to identify the file and send it as a parameter to read or write. By convention, the UNIX System Shell Associates file descriptor 0 with the sta

Reposted a double-buffering article found on the Internet, which is very useful._______________________________________________________________________ There are many questions about how to avoid flickering and how to improve the display efficiency. Most people think that the efficiency of the MFC plot function is very low, and they always want to seek other solutions.The drawing efficiency of MFC is indeed not high, but it is not bad, and its drawing

, onpaint)Chain_msg_map(Wtl::CdoublebufferimplTctrl>)End_msg_map() 3. Add a dopaint function. The function declaration is as follows: VoidDopaint(Cdchandle DC); 4. Move the code in the original onpaint function to dopaint. Note that the original cpaintdc needs to use the cdchandler parameter instead. VoidTctrl::Dopaint(Cdchandle DC){// Cpaintdc DC (m_hwnd );DC. moveTo (XX... )} OK. compile it. References Method of Drawing with VC without blinking (dual

First, let's talk about the cause of flickering. When the window needs to be re-painted for any reason, the background color or background image is used to clear the display area before the image is displayed, in this way, the background color and the display image appear in turn in a short period of time, making the display window appear flashing. If you set the background fl to null, no matter how you duplicate the drawing, it will not flash, but it will make the display of the window messy, b

When writing a window program with a consistent change in Java, the usual approach is to overwrite the parent class's Paint (Graphics) method in the subclass and use the GUI function in the method to redraw the window. The window of a coherent transformation constantly calls the update (graphics) function, which automatically calls the paint (graphics) function. This will cause a flashing situation.In order to solve this problem, double buffering tech

Double buffering Message Queuing-reduce lock contention On the Web application server side, logical processing and I/O processing are often separated for performance and blocking:I/o Network threads handle I/O events: Receiving and sending packets, establishing and maintaining connections, and so on.Logical threads should logically handle the packets received.Typically, network threads and logical threads exchange information through packet queues, si

The example of this article tells the JS implementation with buffering effect of the Imitation QQ Panel folding menu code. Share to everyone for your reference. Specifically as follows: With buffering effect of imitation QQ Panel folding menu code, using the method: Invoke Effect: Effect (1,2);Where 1 is: The ID of the changed objectWhere 2 is: The ID of the control container can be used: This.parentNode.i

it's not necessary and impossible. Buffering is because the next access may be exactly the same as the previous access. So it's not appropriate for pages that are constantly changing. For example, the page to display the count information is not appropriate. Also, if your dynamic page output, not first output to the variable, but directly back to the user, such as the use of ECHO, print, ReadFile and so on output, I personally think it is still not.

The application of double buffering technology is very extensive, it is needed when designing the game. In midp1.0, the API does not game this package, see a lot of people on the Internet in the discussion of the design of the game will appear when the picture breaks, screen flashing and so on. I after these days of learning to organize their own learning experience, used to throw bricks, I hope that there are experts to discuss each other. Let me al

Label:Query buffering mechanism for MySQL database 2011-08-10 11:07 unknown fire Demon Netfont Size:T | T Using the query buffering mechanism can greatly improve the efficiency of MySQL database query and save the time spent in querying. So how is the query buffering mechanism set up? In this article we will introduce this part of the content, we hope to be abl

Cachevsbufferbothcacheandbufferaretemporarystorageareas buttheydifferinmanyways.Thebufferismainly Foundinramandactsasanareawherethecpucan storedatatemporarily,forexample,datameantforother Outputdevicesmainlywhenthecomputerandtheotherdevices havedifferentspeeds.Thiswaythecomputercanperform othertasks.cache,ontheotherhand,isahigh-speed storageareathatcanbepartofthemainmemoryor Someotherseparatestoragearealikeaharddisk.thesetwo methodsofcachingarereferredtoasmemorycachinganddiskcaching respectively

/**2 * Multi-attribute buffering motion3 */4 functionFnmultibuffermove (ODom, JSON, FN) {5 varispeed, Icur, bstop;6 clearinterval (odom.timer);7Odom.timer = SetInterval (function(){8Bstop =true;9 for(varSattrinchJSON) {Ten //Calculate Current Value One if(sattr = = ' opacity '){ AIcur = Math.Round (Fngetstyle (ODom, sattr) * 100); -}Else{ -Icur =parseint (Fngetstyle (ODom, sattr)); the

When the image information is large, using the above direct display method, may be shown in the previous section, after the display of the next part, because the latter part has not been read from the file, so that the display is mottled phenomenon. To improve the display, many applications use image buffering, which is to load the image into memory, draw an image or graphic in the buffer, and then output the image or graphic drawn in the buffer once

easy to achieve this function, but after the online found that if the file is too large browser will still be stuck, this time the boss will ask you to drink coffee, what should you do? Well, if you run into either of these two situations, or you may face such problems in the future, you can mark it for the next quick fix. 2. Principle. The following is a grand introduction of the output buffer output control PHPfirst, try the effect of the following codeNot Surprisingly, PHP can also impl

When processing the drawing process in VC, if the graphics refresh quickly, the phenomenon of graphics flicker often occurs. Using the method of first drawing in memory and then copying to the screen can eliminate the flicker of the screen by first creating a device-compatible memory device context in memory, i.e. opening up a fast memory area as the display area and then drawing the graphics in this memory area. Use the BitBlt function to copy the graphics of the memory directly onto the screen

Today, we can see a friend of the C version of Cu code and the output result.# Include Main (){Printf ("1 .");Sleep (2 );Printf ("2 .");Sleep (2 );Printf ("3 .");Sleep (2 );Printf ("4 .");Printf ("OK/N ");}% GCC test. c%./A. Out1.2.3.4. OK Sleep didn't play a role, but these 1.2.3.4 will be output together after a while.I tried it. This is indeed the case. It was compiled by GCC.Let's look at the arguments of the high people in the downstairs. The system will output the data of a row together,