Composite graphics rendered using multiple frame buffers

Details Composite graphics rendered using multiple frame buffers Composite graphics rendered using multiple frame buffers

2007-09-25

2007-09-25

Chauhan, Ulka J. (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics display memory system

Plural storage devices

C345S545000, C345S530000

Reexamination Certificate

active

10742559

ABSTRACT:
A secondary frame buffer is provided for use by classic applications designed to paint directly to a frame buffer. Classic applications paint their windows to the secondary frame buffer, not to the primary frame buffer. A compositor reads window data from the secondary frame buffer and paints it to the primary frame buffer. The compositor also reads window data written to back buffers by other applications and paints that data to the primary frame buffer. Since the compositor maintains visible region data for all windows, the windows are correctly painted to the primary frame buffer whether they are from the back-buffered windows or from classic applications. In addition, optimizations in classic applications that cause classic windows to be inappropriately painted over newer style windows no longer have this effect, since the compositor is responsible for painting legacy windows to the frame buffer, not the applications themselves.

REFERENCES:
patent: 4555775 (1985-11-01), Pike
patent: 5854640 (1998-12-01), North et al.
patent: 6359631 (2002-03-01), DeLeeuw
patent: 6504547 (2003-01-01), Mercer
patent: 6911984 (2005-06-01), Sabella et al.
patent: 2003/0071818 (2003-04-01), Wilt et al.
PCT International Search Report and PCT Written Opinion of the International Searching Authority dated Apr. 25, 2005 for corresponding International Application No. PCT/US2004/032752, filed Apr. 10, 2004, 10 pages.

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