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WDDM 1.0/1.1 only allows rudimentary task scheduling using "batch queue" granularity; improvements to multitasking, as well as fast context switching and support for virtual memory, were initially expected in versions tentatively named WDDM 2.0 and WDDM 2.1, which were announced at WinHEC 2006. [32] [33] [34]
In Direct3D 11, the concept of feature levels has been further expanded to run on most downlevel hardware including Direct3D 9 cards with WDDM drivers.. There are seven feature levels provided by D3D_FEATURE_LEVEL structure; levels 9_1, 9_2 and 9_3 (collectively known as Direct3D 10 Level 9) re-encapsulate various features of popular Direct3D 9 cards conforming to Shader Model 2.0, while ...
WDDM 2.2 support with Windows Mixed Reality begins with KabyLake-based GPUs. [54] Specifications of Gen9 Intel graphics processing units [55] [56] ...
Windows 10 includes DirectX 12 alongside WDDM 2.0. [12] [13] Unveiled March 2014 at GDC, DirectX 12 aims to provide "console-level efficiency" with "closer to the metal" access to hardware resources, and reduced CPU and graphics driver overhead.
Windows Display Driver Model (WDDM), previously referred to as Longhorn Display Driver Model (LDDM), designed for graphics performance and stability. A new Kernel-Mode Driver Framework, which will also be available for Windows XP and Windows 2000. A new user-mode driver model called the User-Mode Driver Framework. In Windows Vista, WDDM display ...
DWM works in different ways depending on the operating system (Windows 7 or Windows Vista) and on the version of the graphics drivers it uses (WDDM 1.0 or 1.1). Under Windows 7 and with WDDM 1.1 drivers, DWM only writes the program's buffer to the video RAM, even if it is a graphics device interface (GDI) program.
Windows 10 includes DirectX 12, alongside WDDM 2.0. [187] [188] Unveiled March 2014 at GDC, DirectX 12 aims to provide "console-level efficiency" with "closer to the metal" access to hardware resources, and reduced CPU and graphics driver overhead.
WDDM driver model in Windows Vista and higher supports arbitrarily large number of execution contexts (or threads) in hardware or in software. Windows XP only supported multitasked access to Direct3D, where separate applications could execute in different windows and be hardware accelerated, and the OS had limited control about what the GPU ...