发明名称 |
Video driver for accommodating multiple video controllers. |
摘要 |
<p>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. <IMAGE></p> |
申请公布号 |
EP0684547(A2) |
申请公布日期 |
1995.11.29 |
申请号 |
EP19950303084 |
申请日期 |
1995.05.05 |
申请人 |
COMPAQ COMPUTER CORPORATION |
发明人 |
BIGGS, KENT E.;LOBODZINSKI, MARK A. |
分类号 |
G06F3/14;G09G5/14;(IPC1-7):G06F3/14 |
主分类号 |
G06F3/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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