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Questions tagged [double-buffering]

A computer-graphics technique for updating a dynamic image that greatly reduces the visual artifacts, especially flicker, caused by the screen pixel being changed. The new image is drawn in a "hidden" buffer while the user still sees the old image, stored in a "visible" buffer (hence "double-buffering"). When the new image is fully drawn, the visible and the hidden buffers are switched very quickly and the hidden buffer content becomes visible.

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Does HTML5/Canvas Support Double Buffering?

What I'd like to do is draw my graphics on a buffer and then be able to copy it as is to the canvas so I can do animation and avoid flickering. But I couldn't find this option. Anyone know how I can go about this?
Shai UI
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Single producer, single consumer data structure with double buffer in C++

I have an application at $work where I have to move between two real-time threads that are scheduled at different frequencies. (The actual scheduling is beyond my control.) The application is hard real-time-ish (one of the threads has to drive a…
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Is it possible to eliminate flickering entirely when resizing a window?

Normally, even when using double buffering, when resizing a window, it seems that it's inevitable that the flickering will happen. Step 1, the original window. Step 2, the window is resized, but the extra area hasn't been painted. Step 3, the…
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What could cause Double Buffering to kill my app?

I have a few custom (winforms) components that draw to the screen using GDI+. To prevent flickering on repaint, I decided to enable double buffering, so I added a line to my constructor: public ColourWheel() { InitializeComponent(); …
Tom Wright
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What do HWSURFACE and DOUBLEBUF do?

I saw online the use of HWSURFACE|DOUBLEBUF|RESIZABLE to resize the window. It works but I'm not sure what the HWSURFACE and DOUBLEBUF actually do. I know it stands for hardware surface and double buffer, but what they actually help with I have no…
MicChe
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Proper double buffering with linux framebuffer

I am wondering how to properly double buffer the framebuffer to avoid tearing. I've done lots of research on this topic and I can't seem to find anything. I've tried FBIO_WAITFORVSYNC. But per this thread: How to query Vsync phase in Linux it seems…
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Smooth PostScript animations

I would like to run animations in PostScript smoothly. To see what I want, let me switch to PostScript directly. Call ghostscript, and 200 dup scale .5 setgray 0 0 3 3 rectfill We have now a gray square. 0 setgray 0 1 3 1 rectfill With a black…
false
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Improve performance of SurfaceView-dervied custom view?

I have written a simple Android application that draws a maze using a custom view derived from SurfaceView. It follows the model of the LunarLander sample application and performs all calculation and drawing using a background thread directly into…
trojanfoe
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Preserving back buffer content after eglSwapBuffers

I'm implementing in Android and native C++ a scene drawing for android using EGL 1.1. Currently using Android's glSurfaceView - which allows me to draw to a back buffer which is displayed at the end of "onDrawFrame" - when the back buffer and the…
Dror Fichman
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Getting rid of flicker in SWT

We are using a the following class to show a progress-bar in our Java application: TextProgressBar Unfortunately we are having some problems with flickering when using that (Win 7, Java 7). Do you have any tips on how we can avoid that? Can we…
Yrlec
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Double buffering winAPI

Okay, so in my application, there are a bunch of winAPI and a few custom controls. Yay... Now, normally, they will just quietly redraw themselves for animations, state changing, ect.... and it all works fine. But I have a method of class Window…
Alexander Rafferty
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JavaFX Canvas Double Buffering

I am replicating a classic game, Pong, in Java using JavaFX. I am using java.util.Timer, java.util.TimerTask for the game loop and JavaFX's Canvas for rendering. Is there a way to add double buffering to the Canvas so the animation doesn't flicker?…
silex
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Double buffering C#

I'm trying to implement the following method: void Ball::DrawOn(Graphics g); The method should draw all previous locations (stored in a queue) of the ball and finally the current location. I don't know if that matters, but I print the previous…
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Double buffering malfunctions ( updated on December 17th 2013 )

INTRODUCTION AND RELEVANT INFORMATION: I have a complex painting to implement in my main window’s WM_PAINT handler. I have submitted a picture bellow to illustrate it: Main window has static controls, instead of buttons, which have style…
AlwaysLearningNewStuff
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Swapping buffers in single-writer-multiple-reader threads

The Story There is a writer thread, periodically gathering data from somewhere (in real-time, but that doesn't matter much in the question). There are many readers then reading from these data. The usual solution for this is with two reader-writer's…
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