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Git Commits -> Revision 64c0c13

Revision 64c0c13 by Bastien Montagne (master)
November 14, 2014, 10:00 (GMT)
Add Murmur2A hashing feature to BLI

Murmur2a is a very fast hashing function generation int32 hashes.
It also features a very good distribution of generated hashes.

However, it is not endianness-agnostic, meaning it will usually generate
different hashes for a same key on big- and little-endian architectures.
Consequently, **it shall not be used to generate persistent hashes**
(never store them in .blend file e.g.).

This implementation supports incremental hashing, and is a direct
adaptation of reference implementation (in c++):
https://smhasher.googlecode.com/svn-history/r130/trunk/MurmurHash2.cpp

That cpp code was also used to generate reference values in gtests file.

Reviewers: sergey, campbellbarton

Reviewed By: campbellbarton

Projects: #bf_blender

Differential Revision: https://developer.blender.org/D892

Commit Details:

Full Hash: 64c0c13e6e08c51e92504631468db864f553d9b5
Parent Commit: c8a9764
Lines Changed: +688, -459

5 Added Paths:

/source/blender/blenlib/BLI_hash_md5.h (+46, -0) (View)
/source/blender/blenlib/BLI_hash_mm2a.h (+45, -0) (View)
/source/blender/blenlib/intern/hash_md5.c (+408, -0) (View)
/source/blender/blenlib/intern/hash_mm2a.c (+107, -0) (View)
/tests/gtests/blenlib/BLI_hash_mm2a_test.cc (+75, -0) (View)

2 Deleted Paths:

/source/blender/blenlib/BLI_md5.h (+0, -47)
/source/blender/blenlib/intern/md5.c (+0, -408)

4 Modified Paths:

/source/blender/blenlib/CMakeLists.txt (+4, -2) (Diff)
/source/blender/imbuf/intern/thumbs.c (+1, -1) (Diff)
/source/blender/render/intern/source/render_result.c (+1, -1) (Diff)
/tests/gtests/blenlib/CMakeLists.txt (+1, -0) (Diff)
Tehnyt: Miika HämäläinenViimeksi päivitetty: 07.11.2014 14:18MiikaH:n Sivut a.k.a. MiikaHweb | 2003-2021