4.1.0

Status: August 2022

The 4.1.0 release is a maintenance release. There is no performance or image quality change in this release.

• General:
  • Change: Command line decompressor no longer uses the legacy GL_LUMINANCE or GL_LUMINANCE_ALPHA format enums when writing KTX output files. Luminance textures now use the GL_RED format and luminance_alpha textures now use the GL_RG format.
  • Change: Command line tool gains a new -dimage option to generate diagnostic images showing aspects of the compression encoding. The output file name with its extension stripped is used as the stem of the diagnostic image file names.
  • Bug-fix: Library decompressor builds for SSE no longer use masked store maskmovdqu, as they can generate faults on masked lanes.
  • Bug-fix: Command line decompressor now correctly uses sized type enums for the internal format when writing output KTX files.
  • Bug-fix: Command line compressor now correctly loads 16 and 32-bit per component input KTX files.
  • Bug-fix: Fixed GCC9 compiler warnings on Arm aarch64.

Binary release sha256 checksums

31ffdd64c9a8fc21313bc039e5a7a3c29350ce6e24004f3649dcd1b128d2d6a2  astcenc-4.1.0-linux-x64.zip
8ed8bea302542d28b37a1026f80e54afeada30b1876b00cdf9034eaf384b491c  astcenc-4.1.0-macos-aarch64.zip
99c174c7f8f7660fc265d13ce6fe97379130ada05f1fbbcf5a82da646439ba97  astcenc-4.1.0-macos-x64.zip
3dbc32f146e00999e48c9dc29be483ec70ec7adf13dc879775f99bebaf8a2627  astcenc-4.1.0-windows-x64.zip