Upgrade SuperBuild to GDAL 3.2.1, libtiff 4.1 (or 4.2) add libdeflate
The GDAL 3.2.0 release notes mention:
- Add optional libdeflate dependency for faster Deflate compression/decompression
This is the last test case from #2136:
| Format | Size | Compression time | Compression time (MT) | Decompression time |
|---|---|---|---|---|
| Uncompressed | 241 187 444 b | N/A | N/A | N/A |
| DEFLATE (GDAL 3.2.0) | 159 937 804 b | 2.053s | 0.392s | 1.722s |
| DEFLATE (GDAL 3.1.0) | 159 740 861 b | 6.638s | 0.572s | 1.311s |
There's a huge improvement in DEFLATE performance in 3.2.0.
This might need adding a new library (libdeflate) to SuperBuild and also upgrading libtiff.