Install libsquish0 by entering the following commands in the terminal:
sudo apt update sudo apt install libsquish0
Description:
DXT texture compression library
libsquish is a lossy software DXT texture compression library. It implements the 3 useful DXT flavours (1,3,5) and has SIMD support for x86 (SSE) and powerpc (Altivec). It can be used (as a much slower software fallback) instead of the hardware implementations present on most modern graphics chips. . This package is the library itself.
Homepage: https://sourceforge.net/projects/libsquish
Version: 1.15-1
Section: universe/libs