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What's new for Windows 8.1 display drivers (WDDM 1.3)

This topic lists display driver features that are new or updated for Windows 8.1. Windows 8.1 introduces version 1.3 of the Windows Display Driver Model (WDDM).

Enumerating GPU engine capabilities

An interface that's used to query a GPU node's engine capabilities.

Using cross-adapter resources in a hybrid system

Describes how to handle resources that are shared between integrated and discrete GPUs.

YUV format ranges in Windows 8.1

An interface that's used to signal user-mode display drivers that video inputs are either in the studio luminance range or in the extended range.

Wireless displays (Miracast)

Describes how to enable wireless (Miracast) displays.

Multiplane overlay support

Describes how to implement multiplane overlays.

Tiled resource support

Describes how to support tiled resources.

Adaptive refresh for playing 24 fps video content

Describes how drivers implement 48-Hz adaptive refresh to conserve power on monitors that are normally run at 60 Hz.

Direct3D rendering performance improvements

Describes how drivers can improve rendering performance on Microsoft Direct3D 9 hardware.

Graphics kernel performance improvements

Describes how drivers can manage history buffers to provide accurate timing data about the execution of API calls in a direct memory access (DMA) buffer.

Present overhead improvements

Describes how drivers must support additional texture formats and a new present device driver interface (DDI).

Specifying device state and frame latency

Describes how a user-mode display driver can pass device status and frame latency info to the display miniport driver.

Supporting Path-Independent Rotation

Supported starting with Windows 8.1 Update. Describes how a display miniport driver can support cloning portrait-first displays on landscape-first displays with the greatest possible resolution.



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