Microsoft Technology Licensing, LLC

Mohamed Sadek

Harneet Singh Sidhana

Mariusz Hieronim Jakubowski

Robert Wilhelm Schmieder

Steve Pronovost

Reiner Fink

Max Alan McMullen

Stephen Harry Wright

Jeremy De Souza

Oreste Dorin Ungureanu

Daniel Wood

Pravin Kumar Santiago

Andrei Baioura

Ameet Arun Chitre

Sandeep Prabhakar

Alice Tang

Mary Luo

Deepali Bhagvat

Jeffrey M Homme

Dorin Ungureanu

Hiro Yamamoto

A desktop display over a remote connection is updated by detecting, at their origin, changes in the desktop that reflect movement of an image, such as window scrolls, window moves and other movements of regions. For every frame of the desktop that is composed, moves can be detected. The offsets and regions of these moves are transformed into desktop space. A list of moves and other information about changed regions in the desktop display provide both an indication of moved image regions and move parameters, and image data that has otherwise changed. The moved image regions are moved at the destination by applying the move parameters, without transferring image data for the moved region to the remote device, while the remaining changed portion of the desktop is copied over the connection to the remote device.

Remoting desktop displays using move regions

A technique for generating content for a stereo 3D display buffer having both stereo 3D graphic objects and non-stereo 3D graphic objects that may be utilized to render stereo 3D content onto one or more windows of a display. The technique incorporates content from stereo 3D application frame buffers into a composition tree that represents the graphic objects in each window displayed on a computing device. At each refresh cycle, the composition tree is traversed to generate content for a stereo 3D display buffer that is then used to draw one or more windows onto a display.

Composing stereo 3D windowed content

Embodiments described herein relate to improving throughput of a CPU and a GPU working in conjunction to render graphics. Time frames for executing CPU and GPU work units are synchronized with a refresh rate of a display. Pending CPU work is performed when a time frame starts (a vsync occurs). When a prior GPU work unit is still executing on the GPU, then a parallel mode is entered. In the parallel mode, some GPU work and some CPU work is performed concurrently. When the parallel mode is exited, for example when there is no CPU work to perform, the parallel mode may be exited.

CPU-GPU parallelization

Information is displayed on a device by writing data to a buffer in memory, the content of the buffer describing a screen display of the device at a particular point in time. A watermarked version of the buffer content is generated by watermarking the content of the buffer with data, such as data identifying a user of the device and/or a copy of a program (e.g., an operating system) running on the device. The watermarked version of the buffer content is then made available, such as in response to a screen capture request. The data embedded in the watermarked version of the content is undetectable (or nearly undetectable) to the human eye, but can nonetheless be extracted by other computing devices or data extraction systems.

Watermarking screen capture content

An application may be provided with an interface for hiding a cursor from or showing a cursor to a video driver and for causing cursor information to be saved in data storage and retrieved from data storage. The interface may include an application program interface (API), which may be callable from the application program. The interface may also include one or more bits included in a video driver, such that the modification of any of the one or more bits may change operation of the video driver. Modification of at least some of the bits may cause a cursor to be hidden from the video driver, may cause a previously hidden cursor to be shown to the video driver, may cause cursor information to be saved in a data storage, or may cause the cursor information to be retrieved from the data storage.

Selective display of cursor

Methods, systems, and computer-readable media are disclosed for redirecting an input to or from an application via a transformed window on a display device while maintaining the transformed window transparent to the application. A window transformation application program interface coupled with a window manager comprises a desktop window manager that facilitates the transparency. The desktop window manager, through the transformation API incorporates a transformation matrix that is used to transform the window from the application on the display. A mouse (or other input device) hit testing routine is incorporated into the desktop window manager to map an input device point to the transformed window, perform an inverse transform on the input device point if it is associated with the transformed window, before sending an input device message associated with the input device point on to the application. In this way, the application need not be aware of the transformation.

Method and system for redirection of transformed windows

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Sammamish, WA, United States of America

Mohamed Sadek