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keys (#70)
LLUUID and LLMaterialID already have an excellent entropy and value dispersion; there is therefore strictly no need to further (slowly) hash their value for use with std and boost libraries containers.
This commit adds a trivial getDigest64() method to both LLUUID and LLMaterialID (which simply returns the XOR of the two 64 bits long words their value is made of), and uses it in std::hash and hash_value() specializations for use with containers.
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These classes are not trivially copyable because of the mState pointer on an internal
XXH3 state that would have to be explicitely copied.
While it would be possible to add custom copy constructor and operator for them, it
does not really make sense to allow copying an instance of these classes, since all we
care about storing and copying is the digest (which is either an U64 or an LLUUID).
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This commit changes inventory category hashing from slow LLMD5 to fast HBXX128 hashing, and allows to use a simple LLUUID for the hash, instead of an LLMD5 instance.
It also removes some old cruft dealing with unused baked texture hashing.
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The viewer currently presents a startling "Grid emergency" warning if an
unrecognized error is returned from login. Let's tone this down a bit
and present the error as it is: an unrecognized login failure rather
than SLearth exploding.
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# Conflicts:
# doc/contributions.txt
# indra/cmake/Copy3rdPartyLibs.cmake
# indra/cmake/FindOpenJPEG.cmake
# indra/cmake/OpenJPEG.cmake
# indra/integration_tests/llui_libtest/CMakeLists.txt
# indra/newview/CMakeLists.txt
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following promotion of DRTVWR-570
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speed matters. (#64)
This commit adds the HBXX64 and HBXX128 classes for use as a drop-in
replacement for the slow LLMD5 hashing class, where speed matters and
backward compatibility (with standard hashing algorithms) and/or
cryptographic hashing qualities are not required.
It also replaces LLMD5 with HBXX* in a few existing hot (well, ok, just
"warm" for some) paths meeting the above requirements, while paving the way for
future use cases, such as in the DRTVWR-559 and sibling branches where the slow
LLMD5 is used (e.g. to hash materials and vertex buffer cache entries), and
could be use such a (way) faster algorithm with very significant benefits and
no negative impact.
Here is the comment I added in indra/llcommon/hbxx.h:
// HBXXH* classes are to be used where speed matters and cryptographic quality
// is not required (no "one-way" guarantee, though they are likely not worst in
// this respect than MD5 which got busted and is now considered too weak). The
// xxHash code they are built upon is vectorized and about 50 times faster than
// MD5. A 64 bits hash class is also provided for when 128 bits of entropy are
// not needed. The hashes collision rate is similar to MD5's.
// See https://github.com/Cyan4973/xxHash#readme for details.
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Should be fixed by SL-18996, but just in case user decides to select a model while viewer closes
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This reverts commit 4d429b7ea31f51f653e0e2ad6b5799a515e28334.
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Inspect and copy doesn't work for face or child selection. Disable them in such cases.
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target FPS 60
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Multiple instances of viewer could write to the same uuid.inv file at the same time.
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For some reason positioning IME window works fine, but disabling and enabling ime works from window's thread only
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Viewer doesn't support web downloads, it should be safe to assume stream and play it
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make_iterator_range doesn't verify errors, replaced with basic increments
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Fixes folders being invidible (missing arrange)
Fixes sroll to target not working reliably
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D577 should have picked part of the changes from contribute branch, picking up the rest for the sake of branch specific crash fixes
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time of Avatars nearby
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frame rate
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NSPersistentUIFileManager is supposed to be responsible for restoring window position and size
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# Conflicts:
# autobuild.xml
# indra/newview/llagent.cpp
# indra/newview/llimview.cpp
# indra/newview/llimview.h
# indra/newview/llinventoryfunctions.cpp
# indra/newview/llpanelmediasettingsgeneral.cpp
# indra/newview/pipeline.cpp
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lower than current framerate
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Links can be drag and dropped so they should be movable via 'cut' as well
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