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Compatibility for cmake version < 3.5 is now deprecated in cmake and
specifing version below 3.5 in cmake_minimum_required produces a
warning.[1]
[1] https://cmake.org/cmake/help/latest/release/3.27.html#deprecated-and-removed-features
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Update the bench_dwt utility to have a -decode/-encode switch
Measured performance gains for DWT encoder on a
Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz (4 cores, hyper threaded)
Encoding time:
$ ./bin/bench_dwt -encode -num_threads 1
time for dwt_encode: total = 8.348 s, wallclock = 8.352 s
$ ./bin/bench_dwt -encode -num_threads 2
time for dwt_encode: total = 9.776 s, wallclock = 4.904 s
$ ./bin/bench_dwt -encode -num_threads 4
time for dwt_encode: total = 13.188 s, wallclock = 3.310 s
$ ./bin/bench_dwt -encode -num_threads 8
time for dwt_encode: total = 30.024 s, wallclock = 4.064 s
Scaling is probably limited by memory access patterns causing
memory access to be the bottleneck.
The slightly worse results with threads==8 than with thread==4
is due to hyperthreading being not appropriate here.
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tests since Travis doesn't have AVX2 compatible machines)
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on declaration-after-statement
And remove occurences of unused arguments in src/lib/openjp2
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Use an internal version of astyle (astyle 3.0). Scripts taken from QGIS.
astyle.options from https://github.com/uclouvain/openjpeg/issues/128
scripts/prepare-commit.sh can be used locally to automatically reformat
edited files.
Travis-CI will run scripts/verify-indentation.sh to verify committed files.
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Inspired from https://github.com/InsightSoftwareConsortium/ITK/blob/master/Utilities/Maintenance/HowToCreateTheCMakeCaseConversion.txt
This needs vim 7.3 and fails with vim 7.4
This also fixes a number of :
- missing empty line at end of files
- useless space at end of lines
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