Method of and appatatus for utilizing video buffer in a multi-purpose fashion to extend the video buffer to multiple windows

A method of producing a display frame, the method comprising:

• a. partitioning a video buffer into a plurality of sub-buffers wherein a size of each sub-buffer corresponds to a display size of a corresponding display window;
• b. scaling a first set of video data and a second set of video data, wherein the first set of video data represents a first video image, further wherein the first set of video data is scaled to be loaded in a corresponding one of the plurality of sub-buffers;
• c. loading the first set of video data in to one of the plurality of sub-buffers of the video buffers;
• and
• d. mixing a graphics frame and the video buffer for display.

A playback device to produce a display frame, the playback device comprising:

• a. a partitioning circuit configured to partition a video buffer into a plurality of sub-buffers wherein a size of each sub-buffer corresponds to a display size of a corresponding display window;
• and
• b. a processor configured to scale a first set of video data and a second set of video data to be loaded in a corresponding one of the plurality of sub-buffers,
• wherein the processor is also configured to mix a graphics frame and the video buffer.