Microsoft Technology Licensing, LLC

James Andrew Goossen

Todd R Manion

Edmund Samuel Victor Pinto

Matthew William Lee

Steven P Trombetta

Mehmet Iyigun

Mark Stefan Grossman

Ivan Nevraev

Kirk O Olynyk

Jason Matthew Gould

Michael Alan Dougherty

Matthew L Bronder

Thomas Fahrig

Gregory John Colombo

Cole Brooking

Martin J I Fuller

Hamze M Kalache

Logananth Seetharaman

Graham Wong

Christopher John Tector

Christopher Michael McAllen

Roberto Ruggeri

Steven Michel Pronovost

Thobias Jones

Michael Charles Crandall

Steve Michel Pronovost

Cole James Brooking

Methods, systems, and apparatuses are provided for measuring a display latency. A video capturing device is configured to capture a video of a reference light flash of a light emitter of a computing device. In the same video, the video capturing device is configured to capture a flash of a predetermined image displayed in a reference frame on a display screen coupled to the computing device. The video is analyzed to determine a time difference between the reference light flash of the light emitter and the flash of the predetermined image on the display screen. The determined time difference is compared with a reference time difference to determine a display latency, and the display latency may be provided to a user. In this manner, a display latency may be determined accurately and with readily available hardware, thus reducing the need to rely on expensive and specialized measuring equipment.

Display latency measurement system using available hardware

Enhanced user input devices and user input interfacing systems are provided herein which can reduce perceived interaction latency. In one example, a method of operating a user input interface on a host system includes identifying a target pace for delivery of user input state to an application, and determining, based at least on the target pace, one or more timing parameters for transfer of the user input state from a user input device. The method also includes indicating the one or more timing parameters to the user input device, wherein the user input device responsively transfers the user input state according to the one or more timing parameters.

Latency adjustment of user input devices

Examples described herein generally relate to capturing and executing graphics processing operations. A memory trap function can be activated to cause a graphics processing unit (GPU) to report memory accesses in executing graphics processing operations. Based on activating the memory trap function and for each of a sequence of executed graphics processing operations executed by the GPU, a sequence of memory accessing commands and associated portions of memory modified based on executing the sequence of executed graphics processing operations can be received. Each of the sequence of multiple memory accessing commands and associated portions of memory can be stored and provided to the GPU to emulate re-executing of the sequence of executed graphics processing operations by the GPU.

Techniques for capturing and executing graphics processing operations

Systems, methods, apparatuses, and software for graphics processing systems in computing environments are provided herein. In one example, a method of handling tiled resources in graphics processing environments is presented. The method includes establishing, in a graphics processing unit, a residency map having values determined from memory residency properties of a texture resource, and sampling from the residency map at a specified location to determine a residency map sample for the texture resource at the specified location, where the residency map sample indicates at least an initial level of detail presently resident and a smoothing component to reach a next level of detail.

Texture residency hardware enhancements for graphics processors

Methods and devices for graphics shading in a computing device. The methods and devices may include receiving a respective cache line of a plurality of cache lines of a shader stored in a memory, wherein the respective cache line and one or more other ones of the plurality of cache lines include at least one jump instruction. Further, the methods and devices may include executing the respective cache line of the shader and skipping to a next portion of the plurality of cache lines based on the at least one jump instruction. Moreover, the methods and devices may include executing one or more prefetchers contemporaneously with the shader in response to the at least one jump instruction, each prefetcher requesting a subsequent one of the plurality of cache lines from the memory, wherein each prefetcher corresponds to a respective jump instruction.

Prefetching for a graphics shader

Active gameplay of a video game on a computer gaming device is overseen by a platform-level in-game recording companion that executes separately from any of a plurality of different video games. During active gameplay of the video game, the active gameplay is continuously and automatically buffered to a temporary storage buffer. During active gameplay the computer gaming device receives a command to save a segment of the active gameplay for subsequent viewing. While displaying gameplay of the currently-executing video game, an interface for the platform-level in-game recording companion is displayed. The segment of the active gameplay is saved from the temporary storage buffer to a library of the platform-level in-game recording companion.

Recording companion

Embodiments disclosed herein are related to systems, methods, and computer readable medium for allocating one or more system resources for the exclusive use of an application. The embodiments include receiving a request for an exclusive allocation of one or more system resources for a first application, the one or more system resources being useable by the first application and one or more second applications; determining an appropriate amount of the one or more system resources that are to be allocated exclusively to the first application; and partitioning the one or more system resources into a first portion that is allocated for the exclusive use of the first application and a second portion that is not allocated for the exclusive use of the first application, the second portion being available for the use of the one or more second applications.

Operating system support for game mode

Active gameplay of a video game on a computer gaming device is overseen by a platform-level in-game recording companion that executes separately from any of a plurality of different video games. During active gameplay of the video game, the active gameplay is continuously and automatically buffered to a temporary storage buffer. During active gameplay the computer gaming device receives a command to save a segment of the active gameplay for subsequent viewing. Without interrupting the active gameplay, the segment of the active gameplay is saved from the temporary storage buffer to a library of the platform-level in-game recording companion.

A high speed and memory efficient system and method for rendering Bezier curves. The system utilizes a hybrid forward differencing function representing the Bezier curve defined by the Bezier control points and renders the curve with a small number of straight line segments. The system renders the curve in a manner that results in the same Bezier control points that are calculated using recursive subdivision techniques and rejects line segment approximations that would not be derived from recursive subdivision. The system can start at either end of a Bezier curve and will render the same approximation. The method is readily implemented on a computer and is applicable to Bezier curves of any order.

System and method of hybrid forward differencing to render Bezier splines

Growing community of inventors

Sammamish, WA, United States of America

James Andrew Goossen