Testing compression approaches for floating point data

⚠️ The code is a mess right now, don't look at it!

A series of experiments in compressing semi-structured floating point data. Blog post series about it:

• Part 0: Intro
• Part 1: Generic Compression Libraries (zlib, lz4, zstd, brotli)
• Part 2: Generic Compression Libraries (libdeflate, oodle)
• Part 3: Data Filtering (simple data filtering to improve compression ratio)
• Part 4: Mesh Optimizer (mis-using mesh compression library on our data set)
• Part 5: Science! (zfp, fpzip, SPDP, ndzip, streamvbyte)
• Part 6: Optimize Filtering (optimizations for part 3 data filters)
• Part 7: More Filtering Optimization (more optimizations for data filters)

Code here uses 3rd party libraries:

• zstd, v1.5.2, BSD or GPLv2 license.
• lz4, v1.9.3, BSD license.
• zlib, 1.2.13, zlib license.
• brotli, v1.0.9, MIT license.
• libdeflate, v1.17, MIT license.
• bitshuffle, 0.5.1, MIT license.
• meshoptimizer, v0.18, MIT license.
• spdp_11.c, BSD license.
• zfp, 1.0.0, BSD license.
• fpzip, 1.3.0, BSD license.
• ndzip, 2022.06, MIT license.
• streamvbyte, 0.5.2, Apache-2.0 license.
• sokol_time, zlib license.
• ini.h, 2022 Sep (aef7d92), MIT or Public Domain.
• lzsse, 2019 Apr 18 (1847c3e), BSD license.
• lizard, 2020 Nov 3 (af8518c), BSD license.
• sse2neon, 2023 Apr 14 (32ad00d), MIT license.

Oodle SDK is not public, so that one is not compiled in unless you put:

• Oodle wrapper functions implementation file into src/oodle_wrapper.cpp, with implementation of oodle_init, oodle_compress_calc_bound, oodle_compress_data, oodle_decompress_data, oodle_compressor_get_version.
• Oodle header files and core static library under libs/oodle folder.