Patent ID: 6529198
Filing Date: 2003-03-04
Classification: G06T

Abstract:
A parallel rendering device comprising:a plurality of rendering devices for generating display data in accordance with received rendering commands and data and storing the display data, each of said rendering device issuing a window number of the window that the rendering device is charged to render, upon completion of the generating and storing the display data; a rendering command/data generator for generating a rendering command and data and sequentially distributing the rendering command and data to each of said rendering devices with the rendering command and data for displaying one screen of a window as a unit; display switch means for connecting one of said rendering devices to a display to supply display data generated by said one of the rendering devices in response to a selection signal; a window number buffer for storing information indicating the position of the visible portion of each window to be displayed on the display; a window number/rendering device management table for registering the window number in combination with a corresponding rendering device number, said corresponding rendering device number being the device number of the rendering device that issued the window number of concern, said window number/rendering device management table, while receiving said information from said window number buffer, issuing, as said selection signal, rendering device number registered in combination with the window number of the window that has the visible portion indicated by said information; and means for controlling display, said means for controlling display controlling reading of said information stored in said window number buffer as well as reading of the display data from each of said plurality of rendering devices.