公开(公告)号：GB2312601A

公开(公告)日：1997-10-29

申请号：GB9706595

申请日：1997-04-01

Applicant: IBM

Inventor： JOHNS CHARLES RAY ,  NEAL GARY ALLEN ,  ROBERSON JOHN THOMAS

IPC: G06F3/14 ,  G06F3/048 ,  G09G5/00 ,  G09G5/06 ,  G09G5/14 ,  G09G5/36 ,  G09G5/39 ,  G09G5/393

Abstract: The invention provides an apparatus and method of windowing a VGA image on a screen. The apparatus is a graphics adapter that contains a VGA controller 425, a rasterizer engine 420 and a frame buffer 430 having a displayable (432) and a non-displayable memory (434). The VGA controller stores, processes and retrieves VGA data from the non-displayable memory of the frame buffer and provides the data to the rasterizer engine for further processing such as to window the VGA image on a display screen. After processing, the accelerated graphics processor of the rasterizer engine 420 stores the VGA data as well as other graphics data in the displayable memory 432 of the frame buffer to be later displayed.

公开(公告)号：GB2312601B

公开(公告)日：2000-11-29

申请号：GB9706595

申请日：1997-04-01

Applicant: IBM

Inventor： JOHNS CHARLES RAY ,  NEAL GARY ALLEN ,  ROBERSON JOHN THOMAS

IPC: G06F3/14 ,  G06F3/048 ,  G09G5/00 ,  G09G5/06 ,  G09G5/14 ,  G09G5/36 ,  G09G5/39 ,  G09G5/393

公开(公告)号：HK1005387A1

公开(公告)日：1999-01-08

申请号：HK98104498

申请日：1998-05-25

Applicant: IBM

Inventor： JOHNS CHARLES RAY ,  NEAL GARY ALLEN ,  ROBERSON JOHN THOMAS

IPC: G06F3/14 ,  G06F3/048 ,  G09G5/00 ,  G09G5/06 ,  G09G5/14 ,  G09G5/36 ,  G09G5/39 ,  G09G5/393 ,  G06F