System and method for handling remote drawing commands

• US 8,676,926 B2
• Filed: 08/24/2009
• Issued: 03/18/2014
• Est. Priority Date: 04/15/2009
• Status: Active Grant

• Current Assignee: Dell Marketing Corporation (Dell Technologies Inc.)
• Original Assignee: Wyse Technology L.L.C. (Dell Technologies Inc.)
• Inventors: Pahlavan, Babak, Barreto, Daniel Ernesto, Nicholson, Ronald H Jr.
• Primary Examiner(s): Lazaro, David
• Assistant Examiner(s): HENRY, MARIEGEORGES A
• Application Number:
  US12/546,678
• Publication Number:
  US 20100268813A1
• Time in Patent Office: 1,667 Days
• Field of Search: 709/217, 709/219, 709/227, 715/740
• US Class Current: 709/217
• CPC Class Codes: G06F 2209/549 Remote execution
• CPC Class Codes: G06F 9/452 Remote windowing, e.g. X-Window System, desktop virtualisation protocols for virtual reality H04L67/131
• CPC Class Codes: G06F 9/54 Interprogram communication
• CPC Class Codes: G06T 1/20 Processor architectures; Processor configuration, e.g. pipelining
• CPC Class Codes: H04L 67/04 specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
• CPC Class Codes: H04L 67/08 specially adapted for terminal emulation, e.g. Telnet
• CPC Class Codes: H04L 67/131 Protocols for games, networked simulations or virtual reality

Abstract

Examples of systems and methods are provided for handling remote drawing commands. A system may comprise a buffer module configured to receive, at the system from a remote server system over a remote access connection between the system and the remote server system during a remote connection session, remote drawing commands, according to a drawing command rate, of a remote application running on the remote server system. The buffer module may be configured to store the remote drawing commands. The system may comprise a timer module configured to facilitate sending at least some of the remote drawing commands in the buffer module to a graphics module according to a refresh rate that is less than the drawing command rate. The timer module may be application agnostic.

Claims

1. A system for handling remote drawing commands, the system comprising:

a processor;

a memory communicatively coupled to the processor;

a buffer communicatively coupled to the memory; and

instructions encoded in the memory, the instructions, when executed by the processor, operable to perform operations comprising;

receiving, at the system from a remote server system over a remote access connection between the system and the remote server system during a remote connection session, remote drawing commands, according to a drawing command rate, of a remote application running on the remote server system;

storing the remote drawing commands in the buffer;

facilitating sending at least some of the remote drawing commands in the buffer to a graphics system according to a refresh rate that is less than the drawing command rate, the drawing command rate is a rate at which the remote drawing commands are to be decoded by a decoder of the system when the remote drawing commands are received at the system from the remote server system;

monitoring the buffer, according to a monitor rate, for a change to the buffer,

deleting the change to the buffer, and

facilitating sending at least some of the remote drawing commands in the buffer to the graphics system, wherein the at least some of the remote drawing commands in the buffer sent to the graphics system correspond to the change to the buffer.

2. The system of claim 1, wherein the instructions when executed by the processor, are further operable to perform operations comprising:

facilitating establishing the remote access connection between the system and the remote server system,

receiving, at the system from the remote server system over the remote access connection between the system and the remote server system during the remote connection session, the remote drawing commands of the remote application running on the remote server system, and

providing the remote drawing commands to the buffer at the drawing command rate.

3. The system of claim 1, wherein the graphics system is configured to facilitate displaying the remote drawing commands on a local display of the system, and wherein the remote drawing commands comprise at least one of a raster operation, a multimedia frame, and a texture, wherein the system comprises the graphics system, the local display, and a processing system, wherein the graphics system-comprises a display memory, a graphics processing unit and a frame buffer.

4. The system of claim 1, wherein the instructions when executed by the processor, are further operable to perform operations comprising monitoring the buffer, according to a monitor rate, for one or more changes to the buffer, wherein the monitor rate is less than the drawing command rate, wherein the monitor rate is less than or equal to about 60 hertz, wherein the refresh rate is less than or equal to the monitor rate.

5. The system of claim 1, wherein the buffer comprises temporary bitmap memory, a temporary graphics memory buffer, a temporary memory buffer or cache.

6. The system of claim 1, wherein the instructions when executed by the processor, are further operable to perform operations comprising facilitating sending the at least some of the remote drawing commands in the buffer to the graphics system according to a relation among the remote drawing commands.

7. A method for handling remote drawing commands, the method comprising:

receiving, at a system from a remote server system over a remote access connection between the system and the remote server system during a remote connection session, remote drawing commands, according to a drawing command rate, of a remote application running on the remote server system;

storing the remote drawing commands in a buffer module;

facilitating sending at least some of the remote drawing commands in the buffer module to a graphics module according to a refresh rate that is less than the drawing command rate, the drawing command rate is a rate at which the remote drawing commands are to be decoded by a decoder of the system when the remote drawing commands are received at the system from the remote server system;

monitoring the buffer module, according to a monitor rate, for a change to the buffer module;

detecting the change to the buffer module; and

facilitating sending the at least some of the remote drawing commands in the buffer module to the graphics module, wherein the at least some of the remote drawing commands in the buffer module sent to the graphics module correspond to the change to the buffer module.

8. The method of claim 7, further comprising facilitating establishing the remote access connection between the system and the remote server system.

9. The method of claim 7, further comprising providing the remote drawing commands to the buffer module at the drawing command rate.

10. The method of claim 7, further comprising facilitating displaying the remote drawing commands on a local display of the system,

wherein the remote drawing commands comprise at least one of a raster operation, a multimedia frame, and a texture.

11. The method of claim 7, wherein the graphics module comprises a display memory, a graphics processing unit and a frame buffer.

12. The method of claim 7 wherein the monitor rate is less than the drawing command rate, wherein the monitor rate is less than or equal to about 60 hertz.

13. The method of claim 7, wherein the refresh rate is less than or equal to the monitor rate, wherein the refresh rate is less than or equal to about 60 hertz.

14. The method of claim 7, wherein the buffer module comprises temporary bitmap memory, a temporary graphics memory buffer, a temporary memory buffer or cache.

15. The method of claim 7, wherein the facilitating further comprises facilitating sending the at least some of the remote drawing commands in the buffer module to the graphics module according to a relation among the remote drawing commands.

16. A non-transitory machine-readable medium encoded with instructions executable by a processing system to perform a method for handling remote drawing commands, the instructions comprising code for:

receiving, at a system from a remote server system over a remote access connection between the system and the remote server system during a remote connection session, remote drawing commands, according to a drawing command rate, of a remote application running on the remote server system;

storing the remote drawing commands in a buffer module;

facilitating sending at least some of the remote drawing commands in the buffer module to a graphics module according to a refresh rate that is less than the drawing command rate, the drawing command rate is a rate at which the remote drawing commands are to be decoded by a decoder of the system when the remote drawing commands are received at the system from the remote server system;

monitoring the buffer module, according to a monitor rate, for a change to the buffer module;

detecting the change to the buffer module; and

facilitating sending the at least some of the remote drawing commands in the buffer module to the graphics module, wherein the at least some of the remote drawing commands in the buffer module sent to the graphics module correspond to the change to the buffer module.

17. The non-transitory machine-readable medium of claim 16, wherein the instructions further comprise code for facilitating establishing the remote access connection between the system and the remote server system.

18. The non-transitory machine-readable medium of claim 16, wherein the instructions further comprise code for providing the remote drawing commands to the buffer module at the drawing command rate.

19. The non-transitory machine-readable medium of claim 16, wherein the instructions further comprise code for facilitating displaying the remote drawing commands on a local display of the system, and

wherein the remote drawing commands comprise at least one of a raster operation, a multimedia frame, and a texture.

20. The non-transitory machine-readable medium of claim 16, wherein the graphics module comprises a display memory, a graphics processing unit and a frame buffer.

21. The non-transitory machine-readable medium of claim 16 wherein the monitor rate is less than the drawing command rate, wherein the monitor rate is less than or equal to about 60 hertz.

22. The non-transitory machine-readable medium of claim 16, wherein the refresh rate is less than or equal to the monitor rate, wherein the refresh rate is less than or equal to about 60 hertz.

23. The non-transitory machine-readable medium of claim 16, wherein the buffer module comprises temporary bitmap memory, a temporary graphics memory buffer, a temporary memory buffer or cache.

24. The non-transitory machine-readable medium of claim 16, wherein the instructions comprise code for facilitating further comprise code for facilitating sending the at least some of the remote drawing commands in the buffer module to the graphics module according to a relation among the remote drawing commands.