公开(公告)号：US20250148645A1

公开(公告)日：2025-05-08

申请号：US18386655

申请日：2023-11-03

Applicant: ADVANCED MICRO DEVICES, INC.

Inventor： Navin Patel ,  Shashank Ranjan

IPC: G06T9/00

Abstract: A processing system preconditions block-compressed texture blocks by separately streaming color components and index components for lossless compression. The processing system preconditions the color components for linear compression, such that color component data for adjacent compressed blocks in a row are further compressed using lossless compression. Lossless compression is performed for color components spanning multiple rows to leverage patterns in color components that extend vertically across a frame. The processing system further divides input color component and index component data into pages of memory (e.g., 64 kB pages), such that each page can be independently losslessly compressed and decompressed. The processing system applies delta encoding to color component data so that a single instance of color data and differences from the stored color data are stored for each page.