发明名称 |
Raster operation lookup and execution |
摘要 |
The present invention is a method and apparatus for executing three-operand raster operation in two-operand raster environments. Structurally, the present invention includes a lookup table having one entry for each three-operand raster operation which is to be emulated. The entry associated with a particular three-operand raster operation includes a template and zero or more two-operand raster operations. Execution of the three-operand raster operation begins by retrieving the lookup table entry associated with the three-operand raster operation. Each two-operand raster operation in the lookup table entry is then executed in sequence. During execution, the template is used to provide a mapping which chooses which operands of the three-operand raster operation will be used as operands for the two-operand raster operation in the sequence.
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申请公布号 |
US5825373(A) |
申请公布日期 |
1998.10.20 |
申请号 |
US19960731264 |
申请日期 |
1996.10.11 |
申请人 |
NETWORK COMPUTING DEVICES, INC. |
发明人 |
MARTIN, KEVIN |
分类号 |
G06F9/318;G06F9/455;(IPC1-7):G06F13/00 |
主分类号 |
G06F9/318 |
代理机构 |
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主权项 |
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地址 |
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