Virtualization method of vertical-synchronization in graphics systems

Abstract

A method for rendering frames in graphic systems includes not displaying at least one frame in a sequence of frames.

What is claimed is: 
     
         1 . A method for rendering frames in graphic systems comprising not displaying at least one frame in a sequence of frames. 
     
     
         2 . A method according to  claim 1  further comprising determining an amount of time required to finish displaying a rendered frame being currently displayed in said sequence of frames. 
     
     
         3 . A method according to  claim 2  further comprising determining an amount of time required to render the at least one frame. 
     
     
         4 . A method according to  claim 3  further comprising not displaying the at least one frame when a time difference between the amount of time required to render the at least one frame and the amount of time required to finish displaying the rendered frame being currently displayed exceeds a predetermined time. 
     
     
         5 . A method according to  claim 1  further comprising evaluating inter-frame dependency between the at least one frame and a successive one or more frames in said sequence of frames. 
     
     
         6 . A method according to  claim 5  further comprising shortening the at least one frame if inter-frame dependency exists with the successive one or more frames. 
     
     
         7 . A method according to  claim 6  wherein said shortening comprises removing from said at least one frame some rendering commands. 
     
     
         8 . A method according to  claim 7  further comprising shortening the at least one frame prior to said not displaying. 
     
     
         9 . A method according to  claim 1  wherein said not displaying comprises removing from said at least one frame all rendering commands. 
     
     
         10 . A method according to  claim 1  wherein said not displaying comprises discarding said at least one frame following its rendering. 
     
     
         11 . A computing device comprising:
 a CPU (central processing unit) to manage rendering of frames associated with graphics context and to issue an instruction to not display at least one frame in a sequence of frames; and   a GPU (graphics processing unit) to render frames in said sequence of frames.   
     
     
         12 . A computing device according to  claim 11  wherein said CPU determines an amount of time required to finish displaying a rendered frame being currently displayed. 
     
     
         13 . A computing device according to  claim 12  wherein said CPU further determines an amount of time required to render said at least one frame. 
     
     
         14 . A computing device according to  claim 13  wherein said CPU issues said instruction to not display responsive to a time difference between the amount of time required to render said at least one frame and the amount of time required to finish displaying the rendered frame being currently displayed exceeding a predetermined time. 
     
     
         15 . A computing device according to  claim 11  wherein said CPU evaluates inter-frame dependency between said at least one frame and one or more successive frames in said sequence of frames. 
     
     
         16 . A computing device according to  claim 15  wherein said CPU shortens said at least one frame if inter-frame dependency exists with said one or more successive frames. 
     
     
         17 . A computing device according to  claim 16  wherein said shortening comprises said CPU removing from said at least one frame some rendering commands. 
     
     
         18 . A computing device according to  claim 17  wherein said CPU shortens said at least one frame prior to issuing said instruction to not display. 
     
     
         19 . A computing device according to  claim 11  wherein said instruction to not display comprises said CPU removing from said at least one frame all rendering commands. 
     
     
         20 . A computing device according to  claim 11  wherein said instruction to not display comprises said CPU discarding said at least one frame following its rendering by said GPU.