octave: liboctave/numeric/oct-fftw.cc annotate

annotate liboctave/numeric/oct-fftw.cc @ 27923:bd51beb6205e

update formatting of copyright notices * Use <https://octave.org/copyright/> instead of <https://octave.org/COPYRIGHT.html/>. * For consistency with other comments in the Octave sources, use C++-style comments for copyright blocks in C and C++ files. * Use delimiters above and below copyright blocks that are appropriate for the language used in the file. * Eliminate extra spacing inside copyright blocks. * lex.ll (looks_like_copyright): Also allow newlines and carriage returns before the word "Copyright". * scripts/mk-doc.pl (gethelp): Also skip empty comment lines. * bp-table.cc, type.m: Adjust tests.

author	John W. Eaton <jwe@octave.org>
date	Wed, 08 Jan 2020 11:59:41 -0500
parents	1891570abac8
children	863ae57eee69

rev	line source
27923 bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	1 ////////////////////////////////////////////////////////////////////////
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	2 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	3 // Copyright (C) 2001-2020 The Octave Project Developers
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	4 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	5 // See the file COPYRIGHT.md in the top-level directory of this
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	6 // distribution or <https://octave.org/copyright/>.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	7 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	8 // This file is part of Octave.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	9 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	10 // Octave is free software: you can redistribute it and/or modify it
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	11 // under the terms of the GNU General Public License as published by
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	12 // the Free Software Foundation, either version 3 of the License, or
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	13 // (at your option) any later version.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	14 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	15 // Octave is distributed in the hope that it will be useful, but
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	16 // WITHOUT ANY WARRANTY; without even the implied warranty of
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	18 // GNU General Public License for more details.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	19 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	20 // You should have received a copy of the GNU General Public License
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	21 // along with Octave; see the file COPYING. If not, see
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	22 // <https://www.gnu.org/licenses/>.
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	23 //
bd51beb6205e update formatting of copyright notices John W. Eaton <jwe@octave.org> parents: 27919 diff changeset	24 ////////////////////////////////////////////////////////////////////////
3828 adc217ebe692 [project @ 2001-05-02 14:50:46 by jwe] jwe parents: diff changeset	25
21724 aba2e6293dd8 use "#if ..." consistently instead of "#ifdef" and "#ifndef" John W. Eaton <jwe@octave.org> parents: 21688 diff changeset	26 #if defined (HAVE_CONFIG_H)
21301 40de9f8f23a6 Use '#include "config.h"' rather than <config.h>. Rik <rik@octave.org> parents: 21202 diff changeset	27 # include "config.h"
3828 adc217ebe692 [project @ 2001-05-02 14:50:46 by jwe] jwe parents: diff changeset	28 #endif
adc217ebe692 [project @ 2001-05-02 14:50:46 by jwe] jwe parents: diff changeset	29
21451 763e30285935 eliminate configuration macros from oct-fftw.h (bug #41027) John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	30 #if defined (HAVE_FFTW3_H)
763e30285935 eliminate configuration macros from oct-fftw.h (bug #41027) John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	31 # include <fftw3.h>
763e30285935 eliminate configuration macros from oct-fftw.h (bug #41027) John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	32 #endif
763e30285935 eliminate configuration macros from oct-fftw.h (bug #41027) John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	33
4786 fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4785 diff changeset	34 #include "lo-error.h"
3828 adc217ebe692 [project @ 2001-05-02 14:50:46 by jwe] jwe parents: diff changeset	35 #include "oct-fftw.h"
23475 d691ed308237 maint: Clean up #includes in liboctave/numeric directory. Rik <rik@octave.org> parents: 23457 diff changeset	36 #include "oct-locbuf.h"
4786 fc316bde0053 [project @ 2004-02-18 12:52:20 by jwe] jwe parents: 4785 diff changeset	37 #include "quit.h"
13983 7dd7cccf0757 clean up memory allocated for singletons before exit John W. Eaton <jwe@octave.org> parents: 11586 diff changeset	38 #include "singleton-cleanup.h"
3828 adc217ebe692 [project @ 2001-05-02 14:50:46 by jwe] jwe parents: diff changeset	39
21520 e1c921322ba2 Fix configuration conditions in oct-fftw.cc Mike Miller <mtmiller@octave.org> parents: 21451 diff changeset	40 #if defined (HAVE_FFTW3_THREADS) \|\| defined (HAVE_FFTW3F_THREADS)
21893 0a6f387d18d3 * nproc.cc, oct-fftw.cc: Use octave_num_processors_wrapper. John W. Eaton <jwe@octave.org> parents: 21751 diff changeset	41 # include "nproc-wrapper.h"
15960 bde7731b2b83 added FFTW multithreaded library support Andreas Weber <andy.weber.aw@gmail.com> parents: 15271 diff changeset	42 #endif
bde7731b2b83 added FFTW multithreaded library support Andreas Weber <andy.weber.aw@gmail.com> parents: 15271 diff changeset	43
23062 9ca0829b160e fix editing error in previous change to oct-fftw.cc (bug #50070) John W. Eaton <jwe@octave.org> parents: 23058 diff changeset	44 namespace octave
9ca0829b160e fix editing error in previous change to oct-fftw.cc (bug #50070) John W. Eaton <jwe@octave.org> parents: 23058 diff changeset	45 {
21688 68ab693d16e4 * oct-fftw.cc: Allow compilation without FFTW. John W. Eaton <jwe@octave.org> parents: 21660 diff changeset	46 #if defined (HAVE_FFTW)
68ab693d16e4 * oct-fftw.cc: Allow compilation without FFTW. John W. Eaton <jwe@octave.org> parents: 21660 diff changeset	47
23457 21baad6b35c4 maint: Use C++11 nullptr rather than 0 or NULL when possible. Rik <rik@octave.org> parents: 23440 diff changeset	48 fftw_planner *fftw_planner::instance = nullptr;
9516 fb933db0c517 convert fftw planner classes to singleton objects John W. Eaton <jwe@octave.org> parents: 8920 diff changeset	49
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	50 // Helper class to create and cache FFTW plans for both 1D and
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	51 // 2D. This implementation defaults to using FFTW_ESTIMATE to create
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	52 // the plans, which in theory is suboptimal, but provides quite
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	53 // reasonable performance in practice.
4773 ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 3874 diff changeset	54
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	55 // Also note that if FFTW_ESTIMATE is not used then the planner in FFTW3
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	56 // will destroy the input and output arrays. We must, therefore, create a
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	57 // temporary input array with the same size and 16-byte alignment as
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	58 // the original array when using a different planner strategy.
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	59 // Note that we also use any wisdom that is available, either in a
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	60 // FFTW3 system wide file or as supplied by the user.
4773 ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 3874 diff changeset	61
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	62 // FIXME: if we can ensure 16 byte alignment in Array<T>
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	63 // (<T> *data) the FFTW3 can use SIMD instructions for further
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	64 // acceleration.
4773 ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 3874 diff changeset	65
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	66 // Note that it is profitable to store the FFTW3 plans, for small FFTs.
3828 adc217ebe692 [project @ 2001-05-02 14:50:46 by jwe] jwe parents: diff changeset	67
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	68 fftw_planner::fftw_planner (void)
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23475 diff changeset	69 : meth (ESTIMATE), rplan (nullptr), rd (0), rs (0), rr (0), rh (0), rn (),
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	70 rsimd_align (false), nthreads (1)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	71 {
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23475 diff changeset	72 plan[0] = plan[1] = nullptr;
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	73 d[0] = d[1] = s[0] = s[1] = r[0] = r[1] = h[0] = h[1] = 0;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	74 simd_align[0] = simd_align[1] = false;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	75 inplace[0] = inplace[1] = false;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	76 n[0] = n[1] = dim_vector ();
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	77
15960 bde7731b2b83 added FFTW multithreaded library support Andreas Weber <andy.weber.aw@gmail.com> parents: 15271 diff changeset	78 #if defined (HAVE_FFTW3_THREADS)
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	79 int init_ret = fftw_init_threads ();
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	80 if (! init_ret)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	81 (*current_liboctave_error_handler) ("Error initializing FFTW threads");
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20955 diff changeset	82
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	83 // Use number of processors available to the current process
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	84 // This can be later changed with fftw ("threads", nthreads).
27032 0ee0bb5eb381 make nproc default to "overridable" to agree with nproc shell utility Mike Miller <mtmiller@octave.org> parents: 26377 diff changeset	85 nthreads = octave_num_processors_wrapper (OCTAVE_NPROC_CURRENT_OVERRIDABLE);
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	86 fftw_plan_with_nthreads (nthreads);
15960 bde7731b2b83 added FFTW multithreaded library support Andreas Weber <andy.weber.aw@gmail.com> parents: 15271 diff changeset	87 #endif
bde7731b2b83 added FFTW multithreaded library support Andreas Weber <andy.weber.aw@gmail.com> parents: 15271 diff changeset	88
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	89 // If we have a system wide wisdom file, import it.
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	90 fftw_import_system_wisdom ();
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	91 }
3828 adc217ebe692 [project @ 2001-05-02 14:50:46 by jwe] jwe parents: diff changeset	92
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	93 fftw_planner::~fftw_planner (void)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	94 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	95 fftw_plan *plan_p;
14078 941d19370065 Cleanup FFTW wisdom plans in class destructor and prevent a memory leak. Rik <octave@nomad.inbox5.com> parents: 13994 diff changeset	96
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	97 plan_p = reinterpret_cast<fftw_plan *> (&rplan);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	98 if (*plan_p)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	99 fftw_destroy_plan (*plan_p);
14078 941d19370065 Cleanup FFTW wisdom plans in class destructor and prevent a memory leak. Rik <octave@nomad.inbox5.com> parents: 13994 diff changeset	100
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	101 plan_p = reinterpret_cast<fftw_plan *> (&plan[0]);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	102 if (*plan_p)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	103 fftw_destroy_plan (*plan_p);
14078 941d19370065 Cleanup FFTW wisdom plans in class destructor and prevent a memory leak. Rik <octave@nomad.inbox5.com> parents: 13994 diff changeset	104
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	105 plan_p = reinterpret_cast<fftw_plan *> (&plan[1]);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	106 if (*plan_p)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	107 fftw_destroy_plan (*plan_p);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	108 }
14078 941d19370065 Cleanup FFTW wisdom plans in class destructor and prevent a memory leak. Rik <octave@nomad.inbox5.com> parents: 13994 diff changeset	109
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	110 bool
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	111 fftw_planner::instance_ok (void)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	112 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	113 bool retval = true;
6228 aa5df9ba98d5 [project @ 2007-01-05 22:49:03 by dbateman] dbateman parents: 5775 diff changeset	114
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	115 if (! instance)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	116 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	117 instance = new fftw_planner ();
26369 0249ba4c9589 Fix static analyzer detected V668 issues (bug #55347). Andreas Weber <octave@josoansi.de> parents: 26148 diff changeset	118 singleton_cleanup_list::add (cleanup_instance);
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	119 }
9516 fb933db0c517 convert fftw planner classes to singleton objects John W. Eaton <jwe@octave.org> parents: 8920 diff changeset	120
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	121 return retval;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	122 }
6228 aa5df9ba98d5 [project @ 2007-01-05 22:49:03 by dbateman] dbateman parents: 5775 diff changeset	123
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	124 void
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	125 fftw_planner::threads (int nt)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	126 {
21520 e1c921322ba2 Fix configuration conditions in oct-fftw.cc Mike Miller <mtmiller@octave.org> parents: 21451 diff changeset	127 #if defined (HAVE_FFTW3_THREADS)
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	128 if (instance_ok () && nt != threads ())
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	129 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	130 instance->nthreads = nt;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	131 fftw_plan_with_nthreads (nt);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	132 // Clear the current plans.
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23475 diff changeset	133 instance->rplan = instance->plan[0] = instance->plan[1] = nullptr;
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	134 }
21451 763e30285935 eliminate configuration macros from oct-fftw.h (bug #41027) John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	135 #else
26148 8c72f0345ee8 maint: Silence compiler warnings about unused or too many parameters. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: 25688 diff changeset	136 octave_unused_parameter (nt);
8c72f0345ee8 maint: Silence compiler warnings about unused or too many parameters. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: 25688 diff changeset	137
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	138 (*current_liboctave_warning_handler)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	139 ("unable to change number of threads without FFTW thread support");
21451 763e30285935 eliminate configuration macros from oct-fftw.h (bug #41027) John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	140 #endif
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	141 }
21451 763e30285935 eliminate configuration macros from oct-fftw.h (bug #41027) John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	142
763e30285935 eliminate configuration macros from oct-fftw.h (bug #41027) John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	143 #define CHECK_SIMD_ALIGNMENT(x) \
6482 7e958a1532c6 [project @ 2007-04-04 02:37:07 by jwe] jwe parents: 6228 diff changeset	144 (((reinterpret_cast<ptrdiff_t> (x)) & 0xF) == 0)
4808 a9ec0ce18568 [project @ 2004-03-02 17:36:28 by jwe] jwe parents: 4788 diff changeset	145
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	146 void *
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	147 fftw_planner::do_create_plan (int dir, const int rank,
23440 f15f0d8b78c8 pass dim_vector as const reference, not by value John W. Eaton <jwe@octave.org> parents: 23433 diff changeset	148 const dim_vector& dims,
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	149 octave_idx_type howmany,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	150 octave_idx_type stride,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	151 octave_idx_type dist,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	152 const Complex in, Complex out)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	153 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	154 int which = (dir == FFTW_FORWARD) ? 0 : 1;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	155 fftw_plan cur_plan_p = reinterpret_cast<fftw_plan > (&plan[which]);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	156 bool create_new_plan = false;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	157 bool ioalign = CHECK_SIMD_ALIGNMENT (in) && CHECK_SIMD_ALIGNMENT (out);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	158 bool ioinplace = (in == out);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	159
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	160 // Don't create a new plan if we have a non SIMD plan already but
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	161 // can do SIMD. This prevents endlessly recreating plans if we
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	162 // change the alignment.
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	163
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23475 diff changeset	164 if (plan[which] == nullptr \|\| d[which] != dist \|\| s[which] != stride
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	165 \|\| r[which] != rank \|\| h[which] != howmany
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	166 \|\| ioinplace != inplace[which]
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	167 \|\| ((ioalign != simd_align[which]) ? ! ioalign : false))
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	168 create_new_plan = true;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	169 else
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	170 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	171 // We still might not have the same shape of array.
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	172
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	173 for (int i = 0; i < rank; i++)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	174 if (dims(i) != n[which](i))
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	175 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	176 create_new_plan = true;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	177 break;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	178 }
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	179 }
3828 adc217ebe692 [project @ 2001-05-02 14:50:46 by jwe] jwe parents: diff changeset	180
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	181 if (create_new_plan)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	182 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	183 d[which] = dist;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	184 s[which] = stride;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	185 r[which] = rank;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	186 h[which] = howmany;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	187 simd_align[which] = ioalign;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	188 inplace[which] = ioinplace;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	189 n[which] = dims;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	190
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	191 // Note reversal of dimensions for column major storage in FFTW.
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	192 octave_idx_type nn = 1;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	193 OCTAVE_LOCAL_BUFFER (int, tmp, rank);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	194
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	195 for (int i = 0, j = rank-1; i < rank; i++, j--)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	196 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	197 tmp[i] = dims(j);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	198 nn *= dims(j);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	199 }
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	200
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	201 int plan_flags = 0;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	202 bool plan_destroys_in = true;
4809 b60be7678bdc [project @ 2004-03-02 17:40:08 by jwe] jwe parents: 4808 diff changeset	203
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	204 switch (meth)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	205 {
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	206 case UNKNOWN:
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	207 case ESTIMATE:
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	208 plan_flags \|= FFTW_ESTIMATE;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	209 plan_destroys_in = false;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	210 break;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	211 case MEASURE:
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	212 plan_flags \|= FFTW_MEASURE;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	213 break;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	214 case PATIENT:
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	215 plan_flags \|= FFTW_PATIENT;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	216 break;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	217 case EXHAUSTIVE:
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	218 plan_flags \|= FFTW_EXHAUSTIVE;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	219 break;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	220 case HYBRID:
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	221 if (nn < 8193)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	222 plan_flags \|= FFTW_MEASURE;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	223 else
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	224 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	225 plan_flags \|= FFTW_ESTIMATE;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	226 plan_destroys_in = false;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	227 }
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	228 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	229 }
3828 adc217ebe692 [project @ 2001-05-02 14:50:46 by jwe] jwe parents: diff changeset	230
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	231 if (ioalign)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	232 plan_flags &= ~FFTW_UNALIGNED;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	233 else
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	234 plan_flags \|= FFTW_UNALIGNED;
4773 ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 3874 diff changeset	235
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	236 if (*cur_plan_p)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	237 fftw_destroy_plan (*cur_plan_p);
6228 aa5df9ba98d5 [project @ 2007-01-05 22:49:03 by dbateman] dbateman parents: 5775 diff changeset	238
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	239 if (plan_destroys_in)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	240 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	241 // Create matrix with the same size and 16-byte alignment as input
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	242 OCTAVE_LOCAL_BUFFER (Complex, itmp, nn * howmany + 32);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	243 itmp = reinterpret_cast<Complex *>
25688 b2917b7858ba maint: Use Octave convention for spacing of C++ cast statements. Rik <rik@octave.org> parents: 25103 diff changeset	244 (((reinterpret_cast<ptrdiff_t> (itmp) + 15) & ~ 0xF) +
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	245 ((reinterpret_cast<ptrdiff_t> (in)) & 0xF));
6228 aa5df9ba98d5 [project @ 2007-01-05 22:49:03 by dbateman] dbateman parents: 5775 diff changeset	246
27277 db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	247 *cur_plan_p
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	248 = fftw_plan_many_dft (rank, tmp, howmany,
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	249 reinterpret_cast<fftw_complex *> (itmp),
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	250 nullptr, stride, dist,
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	251 reinterpret_cast<fftw_complex *> (out),
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	252 nullptr, stride, dist, dir, plan_flags);
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	253 }
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	254 else
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	255 {
27277 db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	256 *cur_plan_p
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	257 = fftw_plan_many_dft (rank, tmp, howmany,
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	258 reinterpret_cast<fftw_complex > (const_cast<Complex > (in)),
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	259 nullptr, stride, dist,
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	260 reinterpret_cast<fftw_complex *> (out),
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	261 nullptr, stride, dist, dir, plan_flags);
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	262 }
6228 aa5df9ba98d5 [project @ 2007-01-05 22:49:03 by dbateman] dbateman parents: 5775 diff changeset	263
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23475 diff changeset	264 if (*cur_plan_p == nullptr)
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	265 (*current_liboctave_error_handler) ("Error creating fftw plan");
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	266 }
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	267
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	268 return *cur_plan_p;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	269 }
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	270
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	271 void *
23440 f15f0d8b78c8 pass dim_vector as const reference, not by value John W. Eaton <jwe@octave.org> parents: 23433 diff changeset	272 fftw_planner::do_create_plan (const int rank, const dim_vector& dims,
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	273 octave_idx_type howmany,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	274 octave_idx_type stride,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	275 octave_idx_type dist,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	276 const double in, Complex out)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	277 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	278 fftw_plan cur_plan_p = reinterpret_cast<fftw_plan > (&rplan);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	279 bool create_new_plan = false;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	280 bool ioalign = CHECK_SIMD_ALIGNMENT (in) && CHECK_SIMD_ALIGNMENT (out);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	281
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	282 // Don't create a new plan if we have a non SIMD plan already but
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	283 // can do SIMD. This prevents endlessly recreating plans if we
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	284 // change the alignment.
4808 a9ec0ce18568 [project @ 2004-03-02 17:36:28 by jwe] jwe parents: 4788 diff changeset	285
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23475 diff changeset	286 if (rplan == nullptr \|\| rd != dist \|\| rs != stride \|\| rr != rank
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	287 \|\| rh != howmany \|\| ((ioalign != rsimd_align) ? ! ioalign : false))
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	288 create_new_plan = true;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	289 else
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	290 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	291 // We still might not have the same shape of array.
4809 b60be7678bdc [project @ 2004-03-02 17:40:08 by jwe] jwe parents: 4808 diff changeset	292
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	293 for (int i = 0; i < rank; i++)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	294 if (dims(i) != rn(i))
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	295 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	296 create_new_plan = true;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	297 break;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	298 }
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	299 }
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	300
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	301 if (create_new_plan)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	302 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	303 rd = dist;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	304 rs = stride;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	305 rr = rank;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	306 rh = howmany;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	307 rsimd_align = ioalign;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	308 rn = dims;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	309
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	310 // Note reversal of dimensions for column major storage in FFTW.
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	311 octave_idx_type nn = 1;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	312 OCTAVE_LOCAL_BUFFER (int, tmp, rank);
3828 adc217ebe692 [project @ 2001-05-02 14:50:46 by jwe] jwe parents: diff changeset	313
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	314 for (int i = 0, j = rank-1; i < rank; i++, j--)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	315 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	316 tmp[i] = dims(j);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	317 nn *= dims(j);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	318 }
3828 adc217ebe692 [project @ 2001-05-02 14:50:46 by jwe] jwe parents: diff changeset	319
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	320 int plan_flags = 0;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	321 bool plan_destroys_in = true;
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	322
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	323 switch (meth)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	324 {
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	325 case UNKNOWN:
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	326 case ESTIMATE:
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	327 plan_flags \|= FFTW_ESTIMATE;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	328 plan_destroys_in = false;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	329 break;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	330 case MEASURE:
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	331 plan_flags \|= FFTW_MEASURE;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	332 break;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	333 case PATIENT:
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	334 plan_flags \|= FFTW_PATIENT;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	335 break;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	336 case EXHAUSTIVE:
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	337 plan_flags \|= FFTW_EXHAUSTIVE;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	338 break;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	339 case HYBRID:
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	340 if (nn < 8193)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	341 plan_flags \|= FFTW_MEASURE;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	342 else
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	343 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	344 plan_flags \|= FFTW_ESTIMATE;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	345 plan_destroys_in = false;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	346 }
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	347 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	348 }
3828 adc217ebe692 [project @ 2001-05-02 14:50:46 by jwe] jwe parents: diff changeset	349
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	350 if (ioalign)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	351 plan_flags &= ~FFTW_UNALIGNED;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	352 else
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	353 plan_flags \|= FFTW_UNALIGNED;
4773 ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 3874 diff changeset	354
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	355 if (*cur_plan_p)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	356 fftw_destroy_plan (*cur_plan_p);
6228 aa5df9ba98d5 [project @ 2007-01-05 22:49:03 by dbateman] dbateman parents: 5775 diff changeset	357
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	358 if (plan_destroys_in)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	359 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	360 // Create matrix with the same size and 16-byte alignment as input
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	361 OCTAVE_LOCAL_BUFFER (double, itmp, nn + 32);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	362 itmp = reinterpret_cast<double *>
25688 b2917b7858ba maint: Use Octave convention for spacing of C++ cast statements. Rik <rik@octave.org> parents: 25103 diff changeset	363 (((reinterpret_cast<ptrdiff_t> (itmp) + 15) & ~ 0xF) +
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	364 ((reinterpret_cast<ptrdiff_t> (in)) & 0xF));
6228 aa5df9ba98d5 [project @ 2007-01-05 22:49:03 by dbateman] dbateman parents: 5775 diff changeset	365
27277 db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	366 *cur_plan_p
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	367 = fftw_plan_many_dft_r2c (rank, tmp, howmany, itmp,
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	368 nullptr, stride, dist,
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	369 reinterpret_cast<fftw_complex *> (out),
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	370 nullptr, stride, dist, plan_flags);
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	371 }
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	372 else
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	373 {
27277 db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	374 *cur_plan_p
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	375 = fftw_plan_many_dft_r2c (rank, tmp, howmany,
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	376 (const_cast<double *> (in)),
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	377 nullptr, stride, dist,
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	378 reinterpret_cast<fftw_complex *> (out),
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	379 nullptr, stride, dist, plan_flags);
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	380 }
6228 aa5df9ba98d5 [project @ 2007-01-05 22:49:03 by dbateman] dbateman parents: 5775 diff changeset	381
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23475 diff changeset	382 if (*cur_plan_p == nullptr)
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	383 (*current_liboctave_error_handler) ("Error creating fftw plan");
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	384 }
4808 a9ec0ce18568 [project @ 2004-03-02 17:36:28 by jwe] jwe parents: 4788 diff changeset	385
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	386 return *cur_plan_p;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	387 }
3828 adc217ebe692 [project @ 2001-05-02 14:50:46 by jwe] jwe parents: diff changeset	388
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	389 fftw_planner::FftwMethod
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	390 fftw_planner::do_method (void)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	391 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	392 return meth;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	393 }
9516 fb933db0c517 convert fftw planner classes to singleton objects John W. Eaton <jwe@octave.org> parents: 8920 diff changeset	394
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	395 fftw_planner::FftwMethod
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	396 fftw_planner::do_method (FftwMethod _meth)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	397 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	398 FftwMethod ret = meth;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	399 if (_meth == ESTIMATE \|\| _meth == MEASURE
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	400 \|\| _meth == PATIENT \|\| _meth == EXHAUSTIVE
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	401 \|\| _meth == HYBRID)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	402 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	403 if (meth != _meth)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	404 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	405 meth = _meth;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	406 if (rplan)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	407 fftw_destroy_plan (reinterpret_cast<fftw_plan> (rplan));
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	408 if (plan[0])
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	409 fftw_destroy_plan (reinterpret_cast<fftw_plan> (plan[0]));
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	410 if (plan[1])
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	411 fftw_destroy_plan (reinterpret_cast<fftw_plan> (plan[1]));
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23475 diff changeset	412 rplan = plan[0] = plan[1] = nullptr;
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	413 }
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	414 }
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	415 else
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	416 ret = UNKNOWN;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	417 return ret;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	418 }
9516 fb933db0c517 convert fftw planner classes to singleton objects John W. Eaton <jwe@octave.org> parents: 8920 diff changeset	419
23457 21baad6b35c4 maint: Use C++11 nullptr rather than 0 or NULL when possible. Rik <rik@octave.org> parents: 23440 diff changeset	420 float_fftw_planner *float_fftw_planner::instance = nullptr;
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	421
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	422 float_fftw_planner::float_fftw_planner (void)
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23475 diff changeset	423 : meth (ESTIMATE), rplan (nullptr), rd (0), rs (0), rr (0), rh (0), rn (),
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	424 rsimd_align (false), nthreads (1)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	425 {
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23475 diff changeset	426 plan[0] = plan[1] = nullptr;
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	427 d[0] = d[1] = s[0] = s[1] = r[0] = r[1] = h[0] = h[1] = 0;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	428 simd_align[0] = simd_align[1] = false;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	429 inplace[0] = inplace[1] = false;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	430 n[0] = n[1] = dim_vector ();
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	431
15960 bde7731b2b83 added FFTW multithreaded library support Andreas Weber <andy.weber.aw@gmail.com> parents: 15271 diff changeset	432 #if defined (HAVE_FFTW3F_THREADS)
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	433 int init_ret = fftwf_init_threads ();
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	434 if (! init_ret)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	435 (*current_liboctave_error_handler) ("Error initializing FFTW3F threads");
21136 7cac4e7458f2 maint: clean up code around calls to current_liboctave_error_handler. Rik <rik@octave.org> parents: 20955 diff changeset	436
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	437 // Use number of processors available to the current process
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	438 // This can be later changed with fftw ("threads", nthreads).
27032 0ee0bb5eb381 make nproc default to "overridable" to agree with nproc shell utility Mike Miller <mtmiller@octave.org> parents: 26377 diff changeset	439 nthreads = octave_num_processors_wrapper (OCTAVE_NPROC_CURRENT_OVERRIDABLE);
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	440 fftwf_plan_with_nthreads (nthreads);
15960 bde7731b2b83 added FFTW multithreaded library support Andreas Weber <andy.weber.aw@gmail.com> parents: 15271 diff changeset	441 #endif
bde7731b2b83 added FFTW multithreaded library support Andreas Weber <andy.weber.aw@gmail.com> parents: 15271 diff changeset	442
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	443 // If we have a system wide wisdom file, import it.
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	444 fftwf_import_system_wisdom ();
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	445 }
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	446
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	447 float_fftw_planner::~float_fftw_planner (void)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	448 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	449 fftwf_plan *plan_p;
14078 941d19370065 Cleanup FFTW wisdom plans in class destructor and prevent a memory leak. Rik <octave@nomad.inbox5.com> parents: 13994 diff changeset	450
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	451 plan_p = reinterpret_cast<fftwf_plan *> (&rplan);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	452 if (*plan_p)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	453 fftwf_destroy_plan (*plan_p);
14078 941d19370065 Cleanup FFTW wisdom plans in class destructor and prevent a memory leak. Rik <octave@nomad.inbox5.com> parents: 13994 diff changeset	454
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	455 plan_p = reinterpret_cast<fftwf_plan *> (&plan[0]);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	456 if (*plan_p)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	457 fftwf_destroy_plan (*plan_p);
14078 941d19370065 Cleanup FFTW wisdom plans in class destructor and prevent a memory leak. Rik <octave@nomad.inbox5.com> parents: 13994 diff changeset	458
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	459 plan_p = reinterpret_cast<fftwf_plan *> (&plan[1]);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	460 if (*plan_p)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	461 fftwf_destroy_plan (*plan_p);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	462 }
14078 941d19370065 Cleanup FFTW wisdom plans in class destructor and prevent a memory leak. Rik <octave@nomad.inbox5.com> parents: 13994 diff changeset	463
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	464 bool
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	465 float_fftw_planner::instance_ok (void)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	466 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	467 bool retval = true;
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	468
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	469 if (! instance)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	470 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	471 instance = new float_fftw_planner ();
26369 0249ba4c9589 Fix static analyzer detected V668 issues (bug #55347). Andreas Weber <octave@josoansi.de> parents: 26148 diff changeset	472 singleton_cleanup_list::add (cleanup_instance);
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	473 }
9516 fb933db0c517 convert fftw planner classes to singleton objects John W. Eaton <jwe@octave.org> parents: 8920 diff changeset	474
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	475 return retval;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	476 }
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	477
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	478 void
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	479 float_fftw_planner::threads (int nt)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	480 {
21451 763e30285935 eliminate configuration macros from oct-fftw.h (bug #41027) John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	481 #if defined (HAVE_FFTW3F_THREADS)
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	482 if (instance_ok () && nt != threads ())
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	483 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	484 instance->nthreads = nt;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	485 fftwf_plan_with_nthreads (nt);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	486 // Clear the current plans.
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23475 diff changeset	487 instance->rplan = instance->plan[0] = instance->plan[1] = nullptr;
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	488 }
21451 763e30285935 eliminate configuration macros from oct-fftw.h (bug #41027) John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	489 #else
26148 8c72f0345ee8 maint: Silence compiler warnings about unused or too many parameters. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: 25688 diff changeset	490 octave_unused_parameter (nt);
8c72f0345ee8 maint: Silence compiler warnings about unused or too many parameters. Kai T. Ohlhus <k.ohlhus@gmail.com> parents: 25688 diff changeset	491
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	492 (*current_liboctave_warning_handler)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	493 ("unable to change number of threads without FFTW thread support");
21451 763e30285935 eliminate configuration macros from oct-fftw.h (bug #41027) John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	494 #endif
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	495 }
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	496
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	497 void *
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	498 float_fftw_planner::do_create_plan (int dir, const int rank,
23440 f15f0d8b78c8 pass dim_vector as const reference, not by value John W. Eaton <jwe@octave.org> parents: 23433 diff changeset	499 const dim_vector& dims,
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	500 octave_idx_type howmany,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	501 octave_idx_type stride,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	502 octave_idx_type dist,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	503 const FloatComplex *in,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	504 FloatComplex *out)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	505 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	506 int which = (dir == FFTW_FORWARD) ? 0 : 1;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	507 fftwf_plan cur_plan_p = reinterpret_cast<fftwf_plan > (&plan[which]);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	508 bool create_new_plan = false;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	509 bool ioalign = CHECK_SIMD_ALIGNMENT (in) && CHECK_SIMD_ALIGNMENT (out);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	510 bool ioinplace = (in == out);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	511
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	512 // Don't create a new plan if we have a non SIMD plan already but
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	513 // can do SIMD. This prevents endlessly recreating plans if we
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	514 // change the alignment.
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	515
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23475 diff changeset	516 if (plan[which] == nullptr \|\| d[which] != dist \|\| s[which] != stride
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	517 \|\| r[which] != rank \|\| h[which] != howmany
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	518 \|\| ioinplace != inplace[which]
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	519 \|\| ((ioalign != simd_align[which]) ? ! ioalign : false))
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	520 create_new_plan = true;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	521 else
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	522 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	523 // We still might not have the same shape of array.
21451 763e30285935 eliminate configuration macros from oct-fftw.h (bug #41027) John W. Eaton <jwe@octave.org> parents: 21301 diff changeset	524
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	525 for (int i = 0; i < rank; i++)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	526 if (dims(i) != n[which](i))
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	527 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	528 create_new_plan = true;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	529 break;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	530 }
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	531 }
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	532
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	533 if (create_new_plan)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	534 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	535 d[which] = dist;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	536 s[which] = stride;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	537 r[which] = rank;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	538 h[which] = howmany;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	539 simd_align[which] = ioalign;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	540 inplace[which] = ioinplace;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	541 n[which] = dims;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	542
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	543 // Note reversal of dimensions for column major storage in FFTW.
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	544 octave_idx_type nn = 1;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	545 OCTAVE_LOCAL_BUFFER (int, tmp, rank);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	546
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	547 for (int i = 0, j = rank-1; i < rank; i++, j--)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	548 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	549 tmp[i] = dims(j);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	550 nn *= dims(j);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	551 }
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	552
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	553 int plan_flags = 0;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	554 bool plan_destroys_in = true;
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	555
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	556 switch (meth)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	557 {
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	558 case UNKNOWN:
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	559 case ESTIMATE:
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	560 plan_flags \|= FFTW_ESTIMATE;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	561 plan_destroys_in = false;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	562 break;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	563 case MEASURE:
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	564 plan_flags \|= FFTW_MEASURE;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	565 break;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	566 case PATIENT:
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	567 plan_flags \|= FFTW_PATIENT;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	568 break;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	569 case EXHAUSTIVE:
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	570 plan_flags \|= FFTW_EXHAUSTIVE;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	571 break;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	572 case HYBRID:
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	573 if (nn < 8193)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	574 plan_flags \|= FFTW_MEASURE;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	575 else
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	576 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	577 plan_flags \|= FFTW_ESTIMATE;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	578 plan_destroys_in = false;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	579 }
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	580 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	581 }
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	582
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	583 if (ioalign)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	584 plan_flags &= ~FFTW_UNALIGNED;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	585 else
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	586 plan_flags \|= FFTW_UNALIGNED;
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	587
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	588 if (*cur_plan_p)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	589 fftwf_destroy_plan (*cur_plan_p);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	590
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	591 if (plan_destroys_in)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	592 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	593 // Create matrix with the same size and 16-byte alignment as input
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	594 OCTAVE_LOCAL_BUFFER (FloatComplex, itmp, nn * howmany + 32);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	595 itmp = reinterpret_cast<FloatComplex *>
25688 b2917b7858ba maint: Use Octave convention for spacing of C++ cast statements. Rik <rik@octave.org> parents: 25103 diff changeset	596 (((reinterpret_cast<ptrdiff_t> (itmp) + 15) & ~ 0xF) +
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	597 ((reinterpret_cast<ptrdiff_t> (in)) & 0xF));
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	598
27277 db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	599 *cur_plan_p
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	600 = fftwf_plan_many_dft (rank, tmp, howmany,
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	601 reinterpret_cast<fftwf_complex *> (itmp),
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	602 nullptr, stride, dist,
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	603 reinterpret_cast<fftwf_complex *> (out),
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	604 nullptr, stride, dist, dir, plan_flags);
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	605 }
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	606 else
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	607 {
27277 db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	608 *cur_plan_p
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	609 = fftwf_plan_many_dft (rank, tmp, howmany,
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	610 reinterpret_cast<fftwf_complex > (const_cast<FloatComplex > (in)),
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	611 nullptr, stride, dist,
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	612 reinterpret_cast<fftwf_complex *> (out),
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	613 nullptr, stride, dist, dir, plan_flags);
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	614 }
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	615
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23475 diff changeset	616 if (*cur_plan_p == nullptr)
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	617 (*current_liboctave_error_handler) ("Error creating fftw plan");
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	618 }
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	619
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	620 return *cur_plan_p;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	621 }
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	622
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	623 void *
23440 f15f0d8b78c8 pass dim_vector as const reference, not by value John W. Eaton <jwe@octave.org> parents: 23433 diff changeset	624 float_fftw_planner::do_create_plan (const int rank, const dim_vector& dims,
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	625 octave_idx_type howmany,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	626 octave_idx_type stride,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	627 octave_idx_type dist,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	628 const float in, FloatComplex out)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	629 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	630 fftwf_plan cur_plan_p = reinterpret_cast<fftwf_plan > (&rplan);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	631 bool create_new_plan = false;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	632 bool ioalign = CHECK_SIMD_ALIGNMENT (in) && CHECK_SIMD_ALIGNMENT (out);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	633
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	634 // Don't create a new plan if we have a non SIMD plan already but
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	635 // can do SIMD. This prevents endlessly recreating plans if we
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	636 // change the alignment.
3828 adc217ebe692 [project @ 2001-05-02 14:50:46 by jwe] jwe parents: diff changeset	637
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23475 diff changeset	638 if (rplan == nullptr \|\| rd != dist \|\| rs != stride \|\| rr != rank
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	639 \|\| rh != howmany \|\| ((ioalign != rsimd_align) ? ! ioalign : false))
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	640 create_new_plan = true;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	641 else
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	642 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	643 // We still might not have the same shape of array.
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	644
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	645 for (int i = 0; i < rank; i++)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	646 if (dims(i) != rn(i))
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	647 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	648 create_new_plan = true;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	649 break;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	650 }
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	651 }
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	652
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	653 if (create_new_plan)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	654 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	655 rd = dist;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	656 rs = stride;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	657 rr = rank;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	658 rh = howmany;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	659 rsimd_align = ioalign;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	660 rn = dims;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	661
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	662 // Note reversal of dimensions for column major storage in FFTW.
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	663 octave_idx_type nn = 1;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	664 OCTAVE_LOCAL_BUFFER (int, tmp, rank);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	665
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	666 for (int i = 0, j = rank-1; i < rank; i++, j--)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	667 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	668 tmp[i] = dims(j);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	669 nn *= dims(j);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	670 }
11586 12df7854fa7c strip trailing whitespace from source files John W. Eaton <jwe@octave.org> parents: 11523 diff changeset	671
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	672 int plan_flags = 0;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	673 bool plan_destroys_in = true;
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	674
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	675 switch (meth)
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	676 {
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	677 case UNKNOWN:
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	678 case ESTIMATE:
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	679 plan_flags \|= FFTW_ESTIMATE;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	680 plan_destroys_in = false;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	681 break;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	682 case MEASURE:
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	683 plan_flags \|= FFTW_MEASURE;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	684 break;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	685 case PATIENT:
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	686 plan_flags \|= FFTW_PATIENT;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	687 break;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	688 case EXHAUSTIVE:
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	689 plan_flags \|= FFTW_EXHAUSTIVE;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	690 break;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	691 case HYBRID:
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	692 if (nn < 8193)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	693 plan_flags \|= FFTW_MEASURE;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	694 else
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	695 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	696 plan_flags \|= FFTW_ESTIMATE;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	697 plan_destroys_in = false;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	698 }
10314 07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	699 break;
07ebe522dac2 untabify liboctave C++ sources John W. Eaton <jwe@octave.org> parents: 10158 diff changeset	700 }
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	701
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	702 if (ioalign)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	703 plan_flags &= ~FFTW_UNALIGNED;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	704 else
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	705 plan_flags \|= FFTW_UNALIGNED;
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	706
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	707 if (*cur_plan_p)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	708 fftwf_destroy_plan (*cur_plan_p);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	709
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	710 if (plan_destroys_in)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	711 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	712 // Create matrix with the same size and 16-byte alignment as input
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	713 OCTAVE_LOCAL_BUFFER (float, itmp, nn + 32);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	714 itmp = reinterpret_cast<float *>
25688 b2917b7858ba maint: Use Octave convention for spacing of C++ cast statements. Rik <rik@octave.org> parents: 25103 diff changeset	715 (((reinterpret_cast<ptrdiff_t> (itmp) + 15) & ~ 0xF) +
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	716 ((reinterpret_cast<ptrdiff_t> (in)) & 0xF));
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	717
27277 db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	718 *cur_plan_p
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	719 = fftwf_plan_many_dft_r2c (rank, tmp, howmany, itmp,
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	720 nullptr, stride, dist,
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	721 reinterpret_cast<fftwf_complex *> (out),
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	722 nullptr, stride, dist, plan_flags);
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	723 }
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	724 else
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	725 {
27277 db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	726 *cur_plan_p
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	727 = fftwf_plan_many_dft_r2c (rank, tmp, howmany,
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	728 (const_cast<float *> (in)),
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	729 nullptr, stride, dist,
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	730 reinterpret_cast<fftwf_complex *> (out),
db687716fed6 style fixes: generally aim to break long lines before operators, not after John W. Eaton <jwe@octave.org> parents: 27032 diff changeset	731 nullptr, stride, dist, plan_flags);
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	732 }
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	733
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23475 diff changeset	734 if (*cur_plan_p == nullptr)
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	735 (*current_liboctave_error_handler) ("Error creating fftw plan");
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	736 }
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	737
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	738 return *cur_plan_p;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	739 }
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	740
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	741 float_fftw_planner::FftwMethod
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	742 float_fftw_planner::do_method (void)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	743 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	744 return meth;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	745 }
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	746
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	747 float_fftw_planner::FftwMethod
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	748 float_fftw_planner::do_method (FftwMethod _meth)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	749 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	750 FftwMethod ret = meth;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	751 if (_meth == ESTIMATE \|\| _meth == MEASURE
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	752 \|\| _meth == PATIENT \|\| _meth == EXHAUSTIVE
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	753 \|\| _meth == HYBRID)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	754 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	755 if (meth != _meth)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	756 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	757 meth = _meth;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	758 if (rplan)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	759 fftwf_destroy_plan (reinterpret_cast<fftwf_plan> (rplan));
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	760 if (plan[0])
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	761 fftwf_destroy_plan (reinterpret_cast<fftwf_plan> (plan[0]));
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	762 if (plan[1])
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	763 fftwf_destroy_plan (reinterpret_cast<fftwf_plan> (plan[1]));
23795 980f39c3ab90 Use C++11 nullptr rather than 0 in code (bug #51565). Rik <rik@octave.org> parents: 23475 diff changeset	764 rplan = plan[0] = plan[1] = nullptr;
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	765 }
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	766 }
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	767 else
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	768 ret = UNKNOWN;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	769 return ret;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	770 }
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	771
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	772 template <typename T>
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	773 static inline void
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	774 convert_packcomplex_1d (T *out, size_t nr, size_t nc,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	775 octave_idx_type stride, octave_idx_type dist)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	776 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	777 octave_quit ();
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	778
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	779 // Fill in the missing data.
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	780
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	781 for (size_t i = 0; i < nr; i++)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	782 for (size_t j = nc/2+1; j < nc; j++)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	783 out[jstride + idist] = conj (out[(nc - j)stride + idist]);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	784
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	785 octave_quit ();
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	786 }
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	787
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	788 template <typename T>
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	789 static inline void
23433 c9fab0bc983e maint: Use convention 'int& x' for naming references. Rik <rik@octave.org> parents: 23220 diff changeset	790 convert_packcomplex_Nd (T *out, const dim_vector& dv)
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	791 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	792 size_t nc = dv(0);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	793 size_t nr = dv(1);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	794 size_t np = (dv.ndims () > 2 ? dv.numel () / nc / nr : 1);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	795 size_t nrp = nr * np;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	796 T ptr1, ptr2;
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	797
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	798 octave_quit ();
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	799
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	800 // Create space for the missing elements.
9516 fb933db0c517 convert fftw planner classes to singleton objects John W. Eaton <jwe@octave.org> parents: 8920 diff changeset	801
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	802 for (size_t i = 0; i < nrp; i++)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	803 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	804 ptr1 = out + i * (nc/2 + 1) + nrp*((nc-1)/2);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	805 ptr2 = out + i * nc;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	806 for (size_t j = 0; j < nc/2+1; j++)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	807 ptr2++ = ptr1++;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	808 }
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	809
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	810 octave_quit ();
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	811
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	812 // Fill in the missing data for the rank = 2 case directly for speed.
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	813
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	814 for (size_t i = 0; i < np; i++)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	815 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	816 for (size_t j = 1; j < nr; j++)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	817 for (size_t k = nc/2+1; k < nc; k++)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	818 out[k + (j + inr)nc] = conj (out[nc - k + ((i+1)nr - j)nc]);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	819
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	820 for (size_t j = nc/2+1; j < nc; j++)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	821 out[j + inrnc] = conj (out[(inr+1)nc - j]);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	822 }
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	823
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	824 octave_quit ();
4785 d3018a33c584 [project @ 2004-02-17 21:58:17 by jwe] jwe parents: 4784 diff changeset	825
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	826 // Now do the permutations needed for rank > 2 cases.
4785 d3018a33c584 [project @ 2004-02-17 21:58:17 by jwe] jwe parents: 4784 diff changeset	827
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	828 size_t jstart = dv(0) * dv(1);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	829 size_t kstep = dv(0);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	830 size_t nel = dv.numel ();
4773 ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 3874 diff changeset	831
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	832 for (int inner = 2; inner < dv.ndims (); inner++)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	833 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	834 size_t jmax = jstart * dv(inner);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	835 for (size_t i = 0; i < nel; i+=jmax)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	836 for (size_t j = jstart, jj = jmax-jstart; j < jj;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	837 j+=jstart, jj-=jstart)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	838 for (size_t k = 0; k < jstart; k+= kstep)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	839 for (size_t l = nc/2+1; l < nc; l++)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	840 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	841 T tmp = out[i+ j + k + l];
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	842 out[i + j + k + l] = out[i + jj + k + l];
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	843 out[i + jj + k + l] = tmp;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	844 }
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	845 jstart = jmax;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	846 }
4785 d3018a33c584 [project @ 2004-02-17 21:58:17 by jwe] jwe parents: 4784 diff changeset	847
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	848 octave_quit ();
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	849 }
4785 d3018a33c584 [project @ 2004-02-17 21:58:17 by jwe] jwe parents: 4784 diff changeset	850
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	851 int
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	852 fftw::fft (const double in, Complex out, size_t npts,
25103 078b795c5219 maint: style check C++ ahead of 4.4 release. Rik <rik@octave.org> parents: 25054 diff changeset	853 size_t nsamples, octave_idx_type stride, octave_idx_type dist)
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	854 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	855 dist = (dist < 0 ? npts : dist);
4773 ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 3874 diff changeset	856
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	857 dim_vector dv (npts, 1);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	858 void *vplan = fftw_planner::create_plan (1, dv, nsamples,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	859 stride, dist, in, out);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	860 fftw_plan plan = reinterpret_cast<fftw_plan> (vplan);
4785 d3018a33c584 [project @ 2004-02-17 21:58:17 by jwe] jwe parents: 4784 diff changeset	861
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	862 fftw_execute_dft_r2c (plan, (const_cast<double *>(in)),
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	863 reinterpret_cast<fftw_complex *> (out));
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	864
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	865 // Need to create other half of the transform.
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	866
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	867 convert_packcomplex_1d (out, nsamples, npts, stride, dist);
4785 d3018a33c584 [project @ 2004-02-17 21:58:17 by jwe] jwe parents: 4784 diff changeset	868
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	869 return 0;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	870 }
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	871
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	872 int
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	873 fftw::fft (const Complex in, Complex out, size_t npts,
25103 078b795c5219 maint: style check C++ ahead of 4.4 release. Rik <rik@octave.org> parents: 25054 diff changeset	874 size_t nsamples, octave_idx_type stride, octave_idx_type dist)
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	875 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	876 dist = (dist < 0 ? npts : dist);
4773 ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 3874 diff changeset	877
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	878 dim_vector dv (npts, 1);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	879 void *vplan = fftw_planner::create_plan (FFTW_FORWARD, 1, dv,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	880 nsamples, stride,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	881 dist, in, out);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	882 fftw_plan plan = reinterpret_cast<fftw_plan> (vplan);
4773 ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 3874 diff changeset	883
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	884 fftw_execute_dft (plan,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	885 reinterpret_cast<fftw_complex > (const_cast<Complex >(in)),
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	886 reinterpret_cast<fftw_complex *> (out));
4773 ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 3874 diff changeset	887
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	888 return 0;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	889 }
3828 adc217ebe692 [project @ 2001-05-02 14:50:46 by jwe] jwe parents: diff changeset	890
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	891 int
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	892 fftw::ifft (const Complex in, Complex out, size_t npts,
25103 078b795c5219 maint: style check C++ ahead of 4.4 release. Rik <rik@octave.org> parents: 25054 diff changeset	893 size_t nsamples, octave_idx_type stride,
078b795c5219 maint: style check C++ ahead of 4.4 release. Rik <rik@octave.org> parents: 25054 diff changeset	894 octave_idx_type dist)
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	895 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	896 dist = (dist < 0 ? npts : dist);
4773 ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 3874 diff changeset	897
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	898 dim_vector dv (npts, 1);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	899 void *vplan = fftw_planner::create_plan (FFTW_BACKWARD, 1, dv, nsamples,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	900 stride, dist, in, out);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	901 fftw_plan plan = reinterpret_cast<fftw_plan> (vplan);
4773 ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 3874 diff changeset	902
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	903 fftw_execute_dft (plan,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	904 reinterpret_cast<fftw_complex > (const_cast<Complex >(in)),
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	905 reinterpret_cast<fftw_complex *> (out));
4773 ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 3874 diff changeset	906
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	907 const Complex scale = npts;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	908 for (size_t j = 0; j < nsamples; j++)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	909 for (size_t i = 0; i < npts; i++)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	910 out[istride + jdist] /= scale;
4773 ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 3874 diff changeset	911
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	912 return 0;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	913 }
4773 ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 3874 diff changeset	914
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	915 int
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	916 fftw::fftNd (const double in, Complex out, const int rank,
25103 078b795c5219 maint: style check C++ ahead of 4.4 release. Rik <rik@octave.org> parents: 25054 diff changeset	917 const dim_vector& dv)
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	918 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	919 octave_idx_type dist = 1;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	920 for (int i = 0; i < rank; i++)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	921 dist *= dv(i);
4773 ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 3874 diff changeset	922
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	923 // Fool with the position of the start of the output matrix, so that
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	924 // creating other half of the matrix won't cause cache problems.
3828 adc217ebe692 [project @ 2001-05-02 14:50:46 by jwe] jwe parents: diff changeset	925
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	926 octave_idx_type offset = (dv.numel () / dv(0)) * ((dv(0) - 1) / 2);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	927
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	928 void *vplan = fftw_planner::create_plan (rank, dv, 1, 1, dist,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	929 in, out + offset);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	930 fftw_plan plan = reinterpret_cast<fftw_plan> (vplan);
3828 adc217ebe692 [project @ 2001-05-02 14:50:46 by jwe] jwe parents: diff changeset	931
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	932 fftw_execute_dft_r2c (plan, (const_cast<double *>(in)),
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	933 reinterpret_cast<fftw_complex *> (out+ offset));
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	934
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	935 // Need to create other half of the transform.
3828 adc217ebe692 [project @ 2001-05-02 14:50:46 by jwe] jwe parents: diff changeset	936
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	937 convert_packcomplex_Nd (out, dv);
4773 ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 3874 diff changeset	938
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	939 return 0;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	940 }
4809 b60be7678bdc [project @ 2004-03-02 17:40:08 by jwe] jwe parents: 4808 diff changeset	941
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	942 int
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	943 fftw::fftNd (const Complex in, Complex out, const int rank,
25103 078b795c5219 maint: style check C++ ahead of 4.4 release. Rik <rik@octave.org> parents: 25054 diff changeset	944 const dim_vector& dv)
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	945 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	946 octave_idx_type dist = 1;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	947 for (int i = 0; i < rank; i++)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	948 dist *= dv(i);
4773 ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 3874 diff changeset	949
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	950 void *vplan = fftw_planner::create_plan (FFTW_FORWARD, rank, dv,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	951 1, 1, dist, in, out);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	952 fftw_plan plan = reinterpret_cast<fftw_plan> (vplan);
4809 b60be7678bdc [project @ 2004-03-02 17:40:08 by jwe] jwe parents: 4808 diff changeset	953
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	954 fftw_execute_dft (plan,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	955 reinterpret_cast<fftw_complex > (const_cast<Complex >(in)),
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	956 reinterpret_cast<fftw_complex *> (out));
3828 adc217ebe692 [project @ 2001-05-02 14:50:46 by jwe] jwe parents: diff changeset	957
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	958 return 0;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	959 }
4773 ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 3874 diff changeset	960
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	961 int
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	962 fftw::ifftNd (const Complex in, Complex out, const int rank,
25103 078b795c5219 maint: style check C++ ahead of 4.4 release. Rik <rik@octave.org> parents: 25054 diff changeset	963 const dim_vector& dv)
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	964 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	965 octave_idx_type dist = 1;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	966 for (int i = 0; i < rank; i++)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	967 dist *= dv(i);
4773 ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 3874 diff changeset	968
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	969 void *vplan = fftw_planner::create_plan (FFTW_BACKWARD, rank, dv,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	970 1, 1, dist, in, out);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	971 fftw_plan plan = reinterpret_cast<fftw_plan> (vplan);
4773 ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 3874 diff changeset	972
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	973 fftw_execute_dft (plan,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	974 reinterpret_cast<fftw_complex > (const_cast<Complex >(in)),
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	975 reinterpret_cast<fftw_complex *> (out));
3828 adc217ebe692 [project @ 2001-05-02 14:50:46 by jwe] jwe parents: diff changeset	976
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	977 const size_t npts = dv.numel ();
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	978 const Complex scale = npts;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	979 for (size_t i = 0; i < npts; i++)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	980 out[i] /= scale;
4773 ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 3874 diff changeset	981
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	982 return 0;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	983 }
4773 ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 3874 diff changeset	984
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	985 int
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	986 fftw::fft (const float in, FloatComplex out, size_t npts,
25103 078b795c5219 maint: style check C++ ahead of 4.4 release. Rik <rik@octave.org> parents: 25054 diff changeset	987 size_t nsamples, octave_idx_type stride, octave_idx_type dist)
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	988 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	989 dist = (dist < 0 ? npts : dist);
4773 ccfbd6047a54 [project @ 2004-02-16 19:02:32 by jwe] jwe parents: 3874 diff changeset	990
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	991 dim_vector dv (npts, 1);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	992 void *vplan = float_fftw_planner::create_plan (1, dv, nsamples, stride,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	993 dist, in, out);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	994 fftwf_plan plan = reinterpret_cast<fftwf_plan> (vplan);
3828 adc217ebe692 [project @ 2001-05-02 14:50:46 by jwe] jwe parents: diff changeset	995
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	996 fftwf_execute_dft_r2c (plan, (const_cast<float *>(in)),
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	997 reinterpret_cast<fftwf_complex *> (out));
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	998
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	999 // Need to create other half of the transform.
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1000
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1001 convert_packcomplex_1d (out, nsamples, npts, stride, dist);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	1002
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1003 return 0;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1004 }
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	1005
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1006 int
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1007 fftw::fft (const FloatComplex in, FloatComplex out, size_t npts,
25103 078b795c5219 maint: style check C++ ahead of 4.4 release. Rik <rik@octave.org> parents: 25054 diff changeset	1008 size_t nsamples, octave_idx_type stride, octave_idx_type dist)
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1009 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1010 dist = (dist < 0 ? npts : dist);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	1011
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1012 dim_vector dv (npts, 1);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1013 void *vplan = float_fftw_planner::create_plan (FFTW_FORWARD, 1, dv,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1014 nsamples, stride, dist,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1015 in, out);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1016 fftwf_plan plan = reinterpret_cast<fftwf_plan> (vplan);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	1017
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1018 fftwf_execute_dft (plan,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1019 reinterpret_cast<fftwf_complex > (const_cast<FloatComplex >(in)),
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1020 reinterpret_cast<fftwf_complex *> (out));
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	1021
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1022 return 0;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1023 }
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	1024
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1025 int
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1026 fftw::ifft (const FloatComplex in, FloatComplex out, size_t npts,
25103 078b795c5219 maint: style check C++ ahead of 4.4 release. Rik <rik@octave.org> parents: 25054 diff changeset	1027 size_t nsamples, octave_idx_type stride,
078b795c5219 maint: style check C++ ahead of 4.4 release. Rik <rik@octave.org> parents: 25054 diff changeset	1028 octave_idx_type dist)
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1029 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1030 dist = (dist < 0 ? npts : dist);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	1031
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1032 dim_vector dv (npts, 1);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1033 void *vplan = float_fftw_planner::create_plan (FFTW_BACKWARD, 1, dv,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1034 nsamples, stride, dist,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1035 in, out);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1036 fftwf_plan plan = reinterpret_cast<fftwf_plan> (vplan);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	1037
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1038 fftwf_execute_dft (plan,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1039 reinterpret_cast<fftwf_complex > (const_cast<FloatComplex >(in)),
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1040 reinterpret_cast<fftwf_complex *> (out));
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1041
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1042 const FloatComplex scale = npts;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1043 for (size_t j = 0; j < nsamples; j++)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1044 for (size_t i = 0; i < npts; i++)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1045 out[istride + jdist] /= scale;
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	1046
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1047 return 0;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1048 }
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	1049
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1050 int
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1051 fftw::fftNd (const float in, FloatComplex out, const int rank,
25103 078b795c5219 maint: style check C++ ahead of 4.4 release. Rik <rik@octave.org> parents: 25054 diff changeset	1052 const dim_vector& dv)
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1053 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1054 octave_idx_type dist = 1;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1055 for (int i = 0; i < rank; i++)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1056 dist *= dv(i);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	1057
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1058 // Fool with the position of the start of the output matrix, so that
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1059 // creating other half of the matrix won't cause cache problems.
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1060
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1061 octave_idx_type offset = (dv.numel () / dv(0)) * ((dv(0) - 1) / 2);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	1062
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1063 void *vplan = float_fftw_planner::create_plan (rank, dv, 1, 1, dist,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1064 in, out + offset);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1065 fftwf_plan plan = reinterpret_cast<fftwf_plan> (vplan);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	1066
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1067 fftwf_execute_dft_r2c (plan, (const_cast<float *>(in)),
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1068 reinterpret_cast<fftwf_complex *> (out+ offset));
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	1069
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1070 // Need to create other half of the transform.
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	1071
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1072 convert_packcomplex_Nd (out, dv);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	1073
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1074 return 0;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1075 }
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	1076
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1077 int
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1078 fftw::fftNd (const FloatComplex in, FloatComplex out, const int rank,
25103 078b795c5219 maint: style check C++ ahead of 4.4 release. Rik <rik@octave.org> parents: 25054 diff changeset	1079 const dim_vector& dv)
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1080 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1081 octave_idx_type dist = 1;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1082 for (int i = 0; i < rank; i++)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1083 dist *= dv(i);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	1084
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1085 void *vplan = float_fftw_planner::create_plan (FFTW_FORWARD, rank, dv,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1086 1, 1, dist, in, out);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1087 fftwf_plan plan = reinterpret_cast<fftwf_plan> (vplan);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	1088
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1089 fftwf_execute_dft (plan,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1090 reinterpret_cast<fftwf_complex > (const_cast<FloatComplex >(in)),
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1091 reinterpret_cast<fftwf_complex *> (out));
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	1092
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1093 return 0;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1094 }
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	1095
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1096 int
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1097 fftw::ifftNd (const FloatComplex in, FloatComplex out, const int rank,
25103 078b795c5219 maint: style check C++ ahead of 4.4 release. Rik <rik@octave.org> parents: 25054 diff changeset	1098 const dim_vector& dv)
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1099 {
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1100 octave_idx_type dist = 1;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1101 for (int i = 0; i < rank; i++)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1102 dist *= dv(i);
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	1103
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1104 void *vplan = float_fftw_planner::create_plan (FFTW_BACKWARD, rank, dv,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1105 1, 1, dist, in, out);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1106 fftwf_plan plan = reinterpret_cast<fftwf_plan> (vplan);
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1107
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1108 fftwf_execute_dft (plan,
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1109 reinterpret_cast<fftwf_complex > (const_cast<FloatComplex >(in)),
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1110 reinterpret_cast<fftwf_complex *> (out));
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	1111
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1112 const size_t npts = dv.numel ();
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1113 const FloatComplex scale = npts;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1114 for (size_t i = 0; i < npts; i++)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1115 out[i] /= scale;
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	1116
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1117 return 0;
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1118 }
7789 82be108cc558 First attempt at single precision tyeps David Bateman <dbateman@free.fr> parents: 7017 diff changeset	1119
3828 adc217ebe692 [project @ 2001-05-02 14:50:46 by jwe] jwe parents: diff changeset	1120 #endif
21600 184b85b31e03 more updates for version function mmuetzel <markus.muetzel@gmx.de> parents: 21520 diff changeset	1121
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1122 std::string
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1123 fftw_version (void)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1124 {
21600 184b85b31e03 more updates for version function mmuetzel <markus.muetzel@gmx.de> parents: 21520 diff changeset	1125 #if defined (HAVE_FFTW)
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1126 return ::fftw_version;
21600 184b85b31e03 more updates for version function mmuetzel <markus.muetzel@gmx.de> parents: 21520 diff changeset	1127 #else
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1128 return "none";
21600 184b85b31e03 more updates for version function mmuetzel <markus.muetzel@gmx.de> parents: 21520 diff changeset	1129 #endif
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1130 }
21603 37cbdf7bffa9 Add fftwf_version (bug #45659) mmuetzel <markus.muetzel@gmx.de> parents: 21600 diff changeset	1131
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1132 std::string
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1133 fftwf_version (void)
5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1134 {
21603 37cbdf7bffa9 Add fftwf_version (bug #45659) mmuetzel <markus.muetzel@gmx.de> parents: 21600 diff changeset	1135 #if defined (HAVE_FFTW)
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1136 return ::fftwf_version;
21603 37cbdf7bffa9 Add fftwf_version (bug #45659) mmuetzel <markus.muetzel@gmx.de> parents: 21600 diff changeset	1137 #else
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1138 return "none";
21603 37cbdf7bffa9 Add fftwf_version (bug #45659) mmuetzel <markus.muetzel@gmx.de> parents: 21600 diff changeset	1139 #endif
23058 5839d16828cb move fftw classes inside octave namespace John W. Eaton <jwe@octave.org> parents: 22755 diff changeset	1140 }
21603 37cbdf7bffa9 Add fftwf_version (bug #45659) mmuetzel <markus.muetzel@gmx.de> parents: 21600 diff changeset	1141 }

Mercurial > octave

annotate liboctave/numeric/oct-fftw.cc @ 27923:bd51beb6205e