METHOD AND APPARATUS FOR GENERATING A PLURALITY OF STENCIL REFERENCE VALUES FOR A CORRESPONDING PLURALITY OF PIXELS OR PIXEL SAMPLES

摘要

Based on a driver programmable stencil reference value command, stencil reference value logic produces a plurality of stencil reference values for a corresponding plurality of pixels or pixel samples. At least one of the plurality of stencil reference values has a different value than at least one other of the plurality of stencil reference values. The driver programmable stencil reference value command may include a reference to instruction data or instruction data itself such that the graphics processing logic produces the plurality of stencil reference values based on the instruction data. Stencil logic performs a stencil test on the produced plurality of stencil reference values with respect to or without reference to a previously produced plurality of stencil values. Stencil logic performs stencil operations based on the result of the stencil test.