Patent ID: 6809733
Filing Date: 2004-10-26
Classification: G06F,G09G

Abstract:
A method for synchronizing swap ready in a multiprocessor graphics system, the method comprising the steps of:(a) synchronizing a master clock source associated with a master processor and a slave clock source associated with a slave processor; (b) determining a correction factor which is an increment of time needed to synchronize said master clock source and said slave source; (c) determining at the master processor, a master swap status update time for the master processor and a slave swap status update time for said slave processor, wherein the slave swap status update time is based on the master system swap status update time, a vertical retrace time and on the determined correction factor; (d) transmitting said slave swap status update time to said slave processor; (e) receiving at said master processor, a slave processor swap status after said slave clock source reaches said slave swap status update time; and (f) transmitting a command to swap buffers from said master processor to said slave processor when said slave processor has indicated that it is ready to perform a buffer swap.