Method and system for providing video graphics adapter functiona

Details Method and system for providing video graphics adapter functiona Method and system for providing video graphics adapter functiona

1996-03-11

1999-05-04

Hjerpe, Richard A.

Computer graphics processing and selective visual display system

Display peripheral interface input device

Light pen for fluid matrix display panel

345471, 345509, 345192, 345141, G09G 524

Patent

active

059008660

ABSTRACT:
A display system conversion technique that provides text-mode (e.g., VGA mode) display capabilities to a computer system that lacks text-mode display hardware is disclosed. By using the display conversion technique, programs which assume or require text-mode display hardware can be made to operate properly on computer systems that lack such text-mode display hardware. According to one implementation, a display system for a computer system having an operating system, includes: a display device for displaying an image, a frame buffer for storing a bitmap of the image, a display driver for causing the bitmap to be forwarded to and displayed on the display device, and a text-mode-to-bitmap conversion system for converting text characters received from the operating system operating in a text-mode to the bitmap of the image which is stored in the frame buffer.

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