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The Desktop Window Manager is a compositing window manager, meaning that each program has a buffer that it writes data to; DWM then composites each program's buffer into a final image. By comparison, the stacking window manager in Windows XP and earlier (and also Windows Vista and Windows 7 with Windows Aero disabled) comprises a single display ...
A compositing window manager is a window manager that is also a compositing manager. [ 1 ] [ 2 ] Compositing managers may perform additional processing on buffered windows, applying 2D and 3D animated effects such as blending , fading , scaling , rotation , duplication , bending and contortion, shuffling, blurring , redirecting applications ...
Wayland is a communication protocol that specifies the communication between a display server and its clients, as well as a C library implementation of that protocol. [9] A display server using the Wayland protocol is called a Wayland compositor, because it additionally performs the task of a compositing window manager.
Windows Vista's enhanced graphics capabilities replace the basic concept of hardware overlays with full hardware compositing for every application window running on the system, not just movie players or games, through the Desktop Window Manager. Mac OS X has used hardware compositing since the introduction of Quartz Extreme into Mac OS X 10.2 ...
WDDM drivers allow video memory to be virtualized, [6] and video data to be paged out of video memory into system RAM. In case the video memory available turns out to be insufficient to store all the video data and textures, currently unused data is moved out to system RAM or to the disk. When the swapped out data is needed, it is fetched back.
This service has been implicated in poor networking performance while multimedia is playing. [4] [5] In response to this, Microsoft has included a configurable option [6] in Windows Vista Service Pack 1 and later where users can specify the network throttling index value for the Multimedia Class Scheduling Service so that network performance and audio/video playback quality can be balanced ...
Motif Window Manager (mwm) Stacking: C: 1989 ... Comparison of X Window System desktop environments; Window manager; List of Wayland compositors; References
The Desktop Window Manager is the new windowing system which handles the drawing of all content to the screen. Instead of windows drawing directly to the video card's memory buffers, contents are instead rendered to back-buffers (technically Direct3D surfaces), which are then arranged in the appropriate Z-order, then displayed to the user.