Christoph Hertzberg
4fb3459a23
Fix double-promotion warnings
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(cherry picked from commit c22c103e932e511e96645186831363585a44b7a3)
2021-02-27 18:44:26 +01:00
Guoqiang QI
f44197fabd
Some improvements for kissfft from Martin Reinecke(pocketfft author):
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1.Only computing about half of the factors and use complex conjugate symmetry for the rest instead of all to save time.
2.All twiddles are calculated in double because that gives the maximum achievable precision when doing float transforms.
3.Reducing all angles to the range 0<angle<pi/4 which gives even more precision.
2021-02-24 21:36:47 +00:00
David Tellenbach
36200b7855
Remove vim specific comments to recognoize correct file-type.
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As discussed in #2143 we remove editor specific comments.
2021-02-09 09:13:09 +01:00
Gael Guennebaud
f0a4642bab
Implement c++03 compatible fix for changeset 7a43af1a335da2c0489b4119a33ee1cbff0c15d6
2019-10-09 16:00:57 +02:00
Jonathan Liu
b7689bded9
Use std::complex constructor instead of assignment from scalar
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Fixes GCC conversion to non-scalar type requested compile error when
using boost::multiprecision::cpp_dec_float_50 as scalar type.
2018-06-28 00:32:37 +10:00
Gael Guennebaud
35a8e94577
bug #1167 : simplify installation of header files using cmake's install(DIRECTORY ...) command.
2016-08-29 10:59:37 +02:00
Gael Guennebaud
a76fbbf397
Fix bug #314 :
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- remove most of the metaprogramming kung fu in MathFunctions.h (only keep functions that differs from the std)
- remove the overloads for array expression that were in the std namespace
2012-11-06 15:25:50 +01:00
Benoit Jacob
69124cfca2
Automatic relicensing to MPL2 using Keirs script. Manual fixup follows.
2012-07-13 14:42:47 -04:00
Jitse Niesen
3c412183b2
Get rid of include directives inside namespace blocks (bug #339 ).
2012-04-15 11:06:28 +01:00
Thomas Capricelli
08074843ac
fix few warnings reported by clang
2011-07-07 22:20:04 +02:00
Gael Guennebaud
03d86ea736
fix intallation of unsupported modules
2011-02-16 17:59:35 +01:00
Jitse Niesen
9cd4f67e7f
Specify root namespace for fftw_plan from FFTW3 library.
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After changeset 4716040703be1ee906439385d20475dcddad5ce3
(the ei_ --> internal:: change), there are two symbols
called fftw_plan, one from the FFTW3 library and one from Eigen.
2010-12-12 11:44:30 +00:00
Benoit Jacob
4716040703
bug #86 : use internal:: namespace instead of ei_ prefix
2010-10-25 10:15:22 -04:00
Mark Borgerding
8f51a4ac90
found out about little-documented FFTW_PRESERVE_INPUT which has effect on c2r transforms
2010-02-16 20:44:48 -05:00
Mark Borgerding
cd7912313d
changed FFT function vector and Matrix args to pointer as Benoit suggested
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implemented 2D Complex FFT for FFTW impl
2010-01-22 00:35:03 -05:00
Hauke Heibel
d088ee35f6
Added to possibility to compile unit tests at maximum warning level.
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Silenced (amongst others) many conversion related warnings.
2009-12-12 11:39:07 +01:00
Marton Danoczy
ffaea19a70
Fixed compilation warnings in MSVC with Scalar==float
2009-12-03 14:01:34 +01:00
Mark Borgerding
ec70f8006b
added inlines to a bunch of functions
2009-10-31 00:13:22 -04:00
Mark Borgerding
4c3345364e
moved half-spectrum logic to Eigen::FFT
2009-10-30 23:38:13 -04:00
Mark Borgerding
d659fd9b14
moved real-half-spectrum reflection into Eigen::FFT
2009-10-30 20:26:30 -04:00
Mark Borgerding
a26b729cc9
moved scaling to Eigen::FFT
2009-10-30 19:50:11 -04:00
Mark Borgerding
e3d08443dc
inlining,all namespace declaration moved to FFT, removed preprocessor definitions,
2009-10-21 20:53:05 -04:00
Mark Borgerding
1fd6dfe428
added ei_fftw_impl
2009-05-30 17:55:47 -04:00
Mark Borgerding
f13e000b45
various comment changes
2009-05-27 21:32:42 -04:00
Mark Borgerding
09b4733255
added real-optimized inverse FFT (NFFT must be multiple of 4)
2009-05-25 23:52:21 -04:00
Mark Borgerding
03ed6f9bfb
refactored ei_kissfft_impl to maintain a cache of cpx fft plans
2009-05-25 23:06:49 -04:00
Mark Borgerding
210092d16c
changed name from simple_fft_traits to ei_kissfft_impl
2009-05-25 20:35:24 -04:00
Mark Borgerding
326ea77390
added FFT inverse complex-to-scalar interface (not yet optimized)
2009-05-23 22:50:07 -04:00
Mark Borgerding
3047988172
scalar forward FFT optimized for even size, converts to cpx for odd
2009-05-23 12:50:07 -04:00
Mark Borgerding
9c0fcd0f62
started real optimization, added benchmark for FFT
2009-05-23 10:09:48 -04:00
Mark Borgerding
8b4afe3deb
added non-optimized real forward fft (no inverse yet)
2009-05-22 22:37:59 -04:00
Mark Borgerding
68cad98bc9
indent level change
2009-05-19 00:34:38 -04:00
Mark Borgerding
92ca9fc032
initial pass of FFT module -- includes complex 1-d case only
2009-05-19 00:21:04 -04:00
