发明名称 |
Filtering unit for floating-point texture data |
摘要 |
Floating-point texture filtering units leverage existing fixed-point filter circuits. Groups of floating-point texture values are converted to products of a fixed-point mantissa and a scaling factor that is the same for each texture value in the group. The fixed-point mantissas are filtered using a fixed-point filter circuit, and the filtered mantissa is combined with the scaling factor to determine a floating-point filtered value. Multiple floating-point filter results may be combined in a floating-point accumulator circuit. The same fixed-point filter circuit may also be used to filter fixed-point texture data by providing fixed-point input path that bypasses the format conversion and a fixed-point accumulator. |
申请公布号 |
US8098257(B2) |
申请公布日期 |
2012.01.17 |
申请号 |
US20080032591 |
申请日期 |
2008.02.15 |
申请人 |
DONOVAN WALTER E.;KUGLER ANDERS M.;DONHAM CHRISTOPHER D. S.;NVIDIA CORPORATION |
发明人 |
DONOVAN WALTER E.;KUGLER ANDERS M.;DONHAM CHRISTOPHER D. S. |
分类号 |
G09G5/00;G06T1/00 |
主分类号 |
G09G5/00 |
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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