Method and system in display device interface for managing surfa

Details Method and system in display device interface for managing surfa Method and system in display device interface for managing surfa

1996-04-25

1998-09-01

Tung, Kee M.

Computer graphics processing and selective visual display system

Computer graphic processing system

Plural graphics processors

345501, 345422, G06F 1300

Patent

active

058017178

ABSTRACT:
A display device interface creates surface structures to represent regions in system or video memory. These surface structures enable application programs to access video memory directly. A flipping structure includes a front buffer and one or more back buffers. In response to an application's request to flip a flipping structure, a flipping function changes the reference to underlying surface memory, but the flipping structure remains unchanged with respect to the application. Surface structures are implemented using surface objects that represent pixmaps, Z buffers, or alpha buffers stored in video or system memory. Complex surface structures including two or more surfaces are implemented by attaching surface objects to each other.

REFERENCES:
patent: 5394523 (1995-02-01), Harris
patent: 5428722 (1995-06-01), Marsh et al.
patent: 5455599 (1995-10-01), Cabral et al.
patent: 5515494 (1996-05-01), Lentz
patent: 5519825 (1996-05-01), Naughton et al.
Implementing Games for Windows Using the WinG API and the WaveMix DLL, James Finnegan, Microsoft Systems Journal, pp. 61-81, Jan., 1995.
Computer Graphics '88, Proceedings of the conference held in London, Oct. 1988, "one frame ahead: frame buffer management for animation and real-time graphics" K. Auel.

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