Abstract: Various techniques for remoting graphics are described in the claims, drawings, and text forming a part of the present disclosure.

Abstract: Techniques are described for providing graphics functionality. In a first partition, a software interface comprising graphics capabilities that are abstracted from capabilities of the graphics accelerator device is loaded. In a second partition loading, a graphics capturing and rendering process is loaded. The software interface on the first partition receives a request to render graphics. The request is based on the abstracted graphics capabilities. The graphics capturing and rendering process renders the requested graphics on the second partition. The abstracted graphics capabilities are effectuated in accordance with the capabilities of the graphics accelerator device. The capturing process executing on the second partition provides the rendered graphics to the first partition.

Abstract: Various techniques for remoting graphics are described in the claims, drawings, and text forming a part of the present disclosure.

Abstract: Methods and systems are disclosed in which bitmap data transmission is improved by using some of the advantages of primitive remoting, thus allowing for the reduction of the bandwidth and processing needed to remote a virtual desktop experience. In an embodiment, rendering is performed and bitmaps are remoted, but metadata comprising shortcuts or hints are provided to assist in the rendering of the bitmap data.

Abstract: An invention is disclosed for conducting a remote presentation session with a client that uses a web browser to conduct the session. In embodiments, a proxy server exists between the remote presentation server and the client. The proxy server establishes a HTTP session with the client and a remote presentation session with the client. The server generates graphics encoded with a remote presentation protocol and sends them to the proxy, which re-encodes them as video and sends them to the client for display in the web browser. The client captures user input at the web browser and sends it to the proxy, which encodes it with the remote presentation protocol and sends it to the server to be processed.

Abstract: In various embodiments, a screen image may be divided into rectangles, and a capture component may track changed rectangles and capture the screen upon receiving an indication. For small screen updates, the capture rate may be set to ˜30 captures per second to provide a lower latency. As the screen update size increases, the capture rate may be decreased to match an allocated bandwidth. The capture rate may be increased when available bandwidth increases and decreased as bandwidth decreases. For example, the capture rate may be decreased when downstream back pressure meets predefined criteria. The capture rate change may be effected gradually to avoid jerks and jumps. Varying the capture rate by also enable audio/video synchronization with varying bandwidth variations. Some embodiments may be extended to multiple monitor solutions.

Abstract: Various techniques for remoting graphics are described in the claims, drawings, and text forming a part of the present disclosure.

Abstract: Various techniques for remoting graphics are described in the claims, drawings, and text forming a part of the present disclosure.

Abstract: An invention is disclosed for conducting a remote presentation session with a client that uses a web browser to conduct the session. In embodiments, a proxy server exists between the remote presentation server and the client. The proxy server establishes a HTTP session with the client and a remote presentation session with the client. The server generates graphics encoded with a remote presentation protocol and sends them to the proxy, which re-encodes them as video and sends them to the client for display in the web browser. The client captures user input at the web browser and sends it to the proxy, which encodes it with the remote presentation protocol and sends it to the server to be processed.

Abstract: Methods and systems are disclosed in which bitmap data transmission is improved by using some of the advantages of primitive remoting, thus allowing for the reduction of the bandwidth and processing needed to remote a virtual desktop experience. In an embodiment, rendering is performed and bitmaps are remoted, but metadata comprising shortcuts or hints are provided to assist in the rendering of the bitmap data.

Abstract: In various embodiments, a screen image may be divided into rectangles, and a capture component may track changed rectangles and capture the screen upon receiving an indication. For small screen updates, the capture rate may be set to ˜30 captures per second to provide a lower latency. As the screen update size increases, the capture rate may be decreased to match an allocated bandwidth. The capture rate may be increased when available bandwidth increases and decreased as bandwidth decreases. For example, the capture rate may be decreased when downstream back pressure meets predefined criteria. The capture rate change may be effected gradually to avoid jerks and jumps. Varying the capture rate by also enable audio/video synchronization with varying bandwidth variations. Some embodiments may be extended to multiple monitor solutions.

Abstract: Methods and systems are disclosed for virtualizing a graphics accelerator such as a GPU. In one embodiment, a GPU can be paravirtualized. Rather than modeling a complete hardware GPU, paravirtualization may provide for an abstracted software-only GPU that presents a software interface different from that of the underlying hardware. By providing a paravirtualized GPU, a virtual machine may enable a rich user experience with, for example, accelerated 3D rendering and multimedia, without the need for the virtual machine to be associated with a particular GPU product.

Abstract: Various techniques for remoting graphics are described in the claims, drawings, and text forming a part of the present disclosure.

Abstract: In a computer system having at least two processors, each processor having an associated memory, the processors being coupled to one another through an interface unit by means of a bus, hardware semaphores to regulate access to shared resources are disclosed. Each semaphore is one bit wide and can be written to obtain the desired state. When reading the semaphore, if the contents is a one, then a one is returned. If the content is zero, a zero is returned but the semaphore is automatically reset to one.