Add etcpak library for faster ETC/ETC2/S3TC imports.

- `etc` module was renamed to `etcpak` and modified to use the new library.
- PKM importer is removed in the process, it's obsolete.
- Old library `etc2comp` is removed.
- S3TC compression no longer done via `squish` (but decompression still is).
- Slight modifications to etcpak sources for MinGW compatibility,
  to fix LLVM `-Wc++11-narrowing` errors, and to allow using vendored or
  system libpng.

Co-authored-by: Rémi Verschelde <rverschelde@gmail.com>
This commit is contained in:
K. S. Ernest (iFire) Lee
2021-04-06 22:05:56 -07:00
committed by Rémi Verschelde
parent b895071895
commit d840165a32
101 changed files with 9645 additions and 13477 deletions

View File

@ -134,10 +134,10 @@ Comment: ENet
Copyright: 2002-2020, Lee Salzman
License: Expat
Files: ./thirdparty/etc2comp/
Comment: Etc2Comp
Copyright: 2015, Etc2Comp Authors
License: Apache-2.0
Files: ./thirdparty/etcpak/
Comment: etcpak
Copyright: 2013-2021, Bartosz Taudul
License: BSD-3-clause
Files: ./thirdparty/fonts/DroidSans*.ttf
Comment: DroidSans font