公开(公告)号：US20220092826A1

公开(公告)日：2022-03-24

申请号：US17030048

申请日：2020-09-23

Applicant: ADVANCED MICRO DEVICES, INC. ,  ATI TECHNOLOGIES ULC

Inventor： Saurabh SHARMA ,  Laurent LEFEBVRE ,  Sagar Shankar BHANDARE ,  Ruijin WU

IPC: G06T9/00 ,  G06T1/60

Abstract: Sampling circuitry independently accesses channels of texture data that represent a set of pixels. One or more processing units separately compress the channels of the texture data and store compressed data representative of the channels of the texture data for the set of pixels. The channels can include a red channel, a blue channel, and a green channel that represent color values of the set of pixels and an alpha channel that represents degrees of transparency of the set of pixels. Storing the compressed data can include writing the compress data to portions of a cache. The processing units can identify a subset of the set of pixels that share a value of a first channel of the plurality of channels and represent the value of the first channel over the subset of the set of pixels using information representing the value, the first channel, and boundaries of the subset.

公开(公告)号：US20190066352A1

公开(公告)日：2019-02-28

申请号：US15687108

申请日：2017-08-25

Applicant: Advanced Micro Devices, Inc.

Inventor： Maxim V. KAZAKOV ,  Skyler J. SALEH ,  Ruijin WU ,  Sagar Shankar BHANDARE

IPC: G06T15/00 ,  G06T15/04 ,  G06T15/80 ,  G06T9/00

Abstract: A pipeline is configured to access a memory that stores a texture block and metadata that encodes compression parameters of the texture block and a residency status of the texture block. A processor requests access to the metadata in conjunction with requesting data in the texture block to perform a shading operation. The pipeline selectively returns the data in the texture block to the processor depending on whether the metadata indicates that the texture block is resident in the memory. A cache can also be included to store a copy of the metadata that encodes the compression parameters of the texture block. The residency status and the metadata stored in the cache can be modified in response to requests to access the metadata stored in the cache.

公开(公告)号：US20240273767A1

公开(公告)日：2024-08-15

申请号：US18434185

申请日：2024-02-06

Applicant: ADVANCED MICRO DEVICES, INC. ,  ATI TECHNOLOGIES ULC

Inventor： Saurabh SHARMA ,  Laurent LEFEBVRE ,  Sagar Shankar BHANDARE ,  Ruijin WU

IPC: G06T9/00 ,  G06T1/60

CPC classification number: G06T9/00 ,  G06T1/60 ,  G06T2200/04

Abstract: Sampling circuitry independently accesses channels of texture data that represent a set of pixels. One or more processing units separately compress the channels of the texture data and store compressed data representative of the channels of the texture data for the set of pixels. The channels can include a red channel, a blue channel, and a green channel that represent color values of the set of pixels and an alpha channel that represents degrees of transparency of the set of pixels. Storing the compressed data can include writing the compress data to portions of a cache. The processing units can identify a subset of the set of pixels that share a value of a first channel of the plurality of channels and represent the value of the first channel over the subset of the set of pixels using information representing the value, the first channel, and boundaries of the subset.