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    • 3. 发明申请
    • PIXEL FILTERING USING SHARED FILTER RESOURCE BETWEEN OVERLAY AND TEXTURE MAPPING ENGINES
    • 使用过滤器和纹理映射引擎之间的共享过滤器资源进行像素过滤
    • US20070103487A1
    • 2007-05-10
    • US11619124
    • 2007-01-02
    • David WatsonKim MeinerthIndraneel GhoshThomas PiazzaVal Cook
    • David WatsonKim MeinerthIndraneel GhoshThomas PiazzaVal Cook
    • G09G5/00
    • G06T15/005G09G5/363G09G2340/125
    • A configurable filter module for providing shared filter resource between an overlay engine and a texture mapping engine of a graphics system. The configurable filter may comprise a plurality of linear blend units each of which receives data input from one of the overlay engine and a mapping engine cache, and generates a linear blend filter output respectively; and a filter output multiplexer which receives data output from the linear blend units and selects a proper byte ordering output, wherein the linear blend units serve as an overlay interpolator filter to perform linear blending of the data input from the overlay engine during a linear blend mode, and serve as a texture bilinear filter to perform bilinear filtering of the data input from the mapping engine cache during a bilinear filtering mode.
    • 一种可配置的过滤器模块,用于在叠加引擎和图形系统的纹理映射引擎之间提供共享过滤器资源。 可配置滤波器可以包括多个线性混合单元,每个线性混合单元接收从叠加引擎之一和映射引擎高速缓存输入的数据,并分别产生线性混合滤波器输出; 以及滤波器输出多路复用器,其接收从线性混合单元输出的数据并选择适当的字节排序输出,其中线性混合单元用作叠加内插器滤波器,以在线性混合模式期间执行从覆盖引擎输入的数据的线性混合 ,并且用作纹理双线性滤波器以在双线性滤波模式期间对从映射引擎高速缓存输入的数据进行双线性滤波。