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公开(公告)号：US20200380766A1
公开(公告)日：2020-12-03
申请号：US16559616
申请日：2019-09-03
Applicant: Samsung Electronics Co., Ltd.
Inventor： Derek LENTZ , Yevgeniy URDENKO
Abstract: A graphics pipeline may reduce the number of times when reciprocal, multiply or add computations are used for interpolation computations when though the GPU hardware has been programmed or set to perform a linear-perspective interpolation by determining whether a homogeneous coordinate of each vertex of the primitive is within a predetermined threshold of 1 when a linear-perspective interpolation technique has been specified in a shader program, and determining one or more attributes of the element using a linear interpolation technique based on the homogeneous coordinate of each vertex of the primitive being within a predetermined threshold of 1.
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2.发明申请公开(公告)号：US20200184715A1
公开(公告)日：2020-06-11
申请号：US16438446
申请日：2019-06-11
Applicant: Samsung Electronics Co., Ltd.
Abstract: A computer-implemented redundant-coverage discard method and apparatus for reducing pixel shader work in a tile-based graphics rendering pipeline is disclosed. A coverage block information (CBI) FIFO buffer is disposed within an early coverage discard (ECD) logic section. The FIFO buffer receives and buffers coverage blocks in FIFO order. At least one coverage block that matches the block position within the TCPM is updated. The TCPM stores per-pixel primitive coverage information. The FIFO buffer buffers a moving window of the coverage blocks. Incoming primitive information associated with the coverage blocks is compared with the per-pixel primitive coverage information stored in the tile coverage-primitive map (TCPM) table at the corresponding positions for the live coverages only. Any preceding overlapping coverage within the moving window of the coverage blocks is rejected. An alternate embodiment uses a doubly linked-list rather than a FIFO buffer.
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