The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 02, 1996
Filed:
May. 16, 1994
Kent E Biggs, Tomball, TX (US);
Mark A Lobodzinski, Houston, TX (US);
Compaq Computer Corporation, Houston, TX (US);
Abstract
A method and system for accommodating multiple video controllers. The method includes communicating a plurality of primitive commands to a video controller having a configuration of a predetermined type. Further, the method includes electronically determining the type of the configuration, and generating a vector table comprising a plurality of device-specific routines. Each entry in the vector table may point to a device-specific routine for hardware acceleration of a primitive command or to a default routine which sets the video controller in a specific mode which can be operated by a set of colordepth-specific routines which operate on any video controller set to the specific mode. In response to a primitive from the operating environment, common code, which is device and colordepth independent, will access a routine via the vector table. If the vector table does not access a hardware accelerated routine, colordepth specific code is used to execute the primitive.