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annotate osx/include/fftw3.h @ 32:0b732c03ec57

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FFTW
author Chris Cannam
date Fri, 04 Jul 2014 10:36:59 +0100
parents
children 879bdc878826
rev   line source
Chris@32 1 /*
Chris@32 2 * Copyright (c) 2003, 2007-11 Matteo Frigo
Chris@32 3 * Copyright (c) 2003, 2007-11 Massachusetts Institute of Technology
Chris@32 4 *
Chris@32 5 * The following statement of license applies *only* to this header file,
Chris@32 6 * and *not* to the other files distributed with FFTW or derived therefrom:
Chris@32 7 *
Chris@32 8 * Redistribution and use in source and binary forms, with or without
Chris@32 9 * modification, are permitted provided that the following conditions
Chris@32 10 * are met:
Chris@32 11 *
Chris@32 12 * 1. Redistributions of source code must retain the above copyright
Chris@32 13 * notice, this list of conditions and the following disclaimer.
Chris@32 14 *
Chris@32 15 * 2. Redistributions in binary form must reproduce the above copyright
Chris@32 16 * notice, this list of conditions and the following disclaimer in the
Chris@32 17 * documentation and/or other materials provided with the distribution.
Chris@32 18 *
Chris@32 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
Chris@32 20 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
Chris@32 21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
Chris@32 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
Chris@32 23 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
Chris@32 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
Chris@32 25 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
Chris@32 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
Chris@32 27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
Chris@32 28 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
Chris@32 29 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Chris@32 30 */
Chris@32 31
Chris@32 32 /***************************** NOTE TO USERS *********************************
Chris@32 33 *
Chris@32 34 * THIS IS A HEADER FILE, NOT A MANUAL
Chris@32 35 *
Chris@32 36 * If you want to know how to use FFTW, please read the manual,
Chris@32 37 * online at http://www.fftw.org/doc/ and also included with FFTW.
Chris@32 38 * For a quick start, see the manual's tutorial section.
Chris@32 39 *
Chris@32 40 * (Reading header files to learn how to use a library is a habit
Chris@32 41 * stemming from code lacking a proper manual. Arguably, it's a
Chris@32 42 * *bad* habit in most cases, because header files can contain
Chris@32 43 * interfaces that are not part of the public, stable API.)
Chris@32 44 *
Chris@32 45 ****************************************************************************/
Chris@32 46
Chris@32 47 #ifndef FFTW3_H
Chris@32 48 #define FFTW3_H
Chris@32 49
Chris@32 50 #include <stdio.h>
Chris@32 51
Chris@32 52 #ifdef __cplusplus
Chris@32 53 extern "C"
Chris@32 54 {
Chris@32 55 #endif /* __cplusplus */
Chris@32 56
Chris@32 57 /* If <complex.h> is included, use the C99 complex type. Otherwise
Chris@32 58 define a type bit-compatible with C99 complex */
Chris@32 59 #if !defined(FFTW_NO_Complex) && defined(_Complex_I) && defined(complex) && defined(I)
Chris@32 60 # define FFTW_DEFINE_COMPLEX(R, C) typedef R _Complex C
Chris@32 61 #else
Chris@32 62 # define FFTW_DEFINE_COMPLEX(R, C) typedef R C[2]
Chris@32 63 #endif
Chris@32 64
Chris@32 65 #define FFTW_CONCAT(prefix, name) prefix ## name
Chris@32 66 #define FFTW_MANGLE_DOUBLE(name) FFTW_CONCAT(fftw_, name)
Chris@32 67 #define FFTW_MANGLE_FLOAT(name) FFTW_CONCAT(fftwf_, name)
Chris@32 68 #define FFTW_MANGLE_LONG_DOUBLE(name) FFTW_CONCAT(fftwl_, name)
Chris@32 69 #define FFTW_MANGLE_QUAD(name) FFTW_CONCAT(fftwq_, name)
Chris@32 70
Chris@32 71 /* IMPORTANT: for Windows compilers, you should add a line
Chris@32 72 #define FFTW_DLL
Chris@32 73 here and in kernel/ifftw.h if you are compiling/using FFTW as a
Chris@32 74 DLL, in order to do the proper importing/exporting, or
Chris@32 75 alternatively compile with -DFFTW_DLL or the equivalent
Chris@32 76 command-line flag. This is not necessary under MinGW/Cygwin, where
Chris@32 77 libtool does the imports/exports automatically. */
Chris@32 78 #if defined(FFTW_DLL) && (defined(_WIN32) || defined(__WIN32__))
Chris@32 79 /* annoying Windows syntax for shared-library declarations */
Chris@32 80 # if defined(COMPILING_FFTW) /* defined in api.h when compiling FFTW */
Chris@32 81 # define FFTW_EXTERN extern __declspec(dllexport)
Chris@32 82 # else /* user is calling FFTW; import symbol */
Chris@32 83 # define FFTW_EXTERN extern __declspec(dllimport)
Chris@32 84 # endif
Chris@32 85 #else
Chris@32 86 # define FFTW_EXTERN extern
Chris@32 87 #endif
Chris@32 88
Chris@32 89 enum fftw_r2r_kind_do_not_use_me {
Chris@32 90 FFTW_R2HC=0, FFTW_HC2R=1, FFTW_DHT=2,
Chris@32 91 FFTW_REDFT00=3, FFTW_REDFT01=4, FFTW_REDFT10=5, FFTW_REDFT11=6,
Chris@32 92 FFTW_RODFT00=7, FFTW_RODFT01=8, FFTW_RODFT10=9, FFTW_RODFT11=10
Chris@32 93 };
Chris@32 94
Chris@32 95 struct fftw_iodim_do_not_use_me {
Chris@32 96 int n; /* dimension size */
Chris@32 97 int is; /* input stride */
Chris@32 98 int os; /* output stride */
Chris@32 99 };
Chris@32 100
Chris@32 101 #include <stddef.h> /* for ptrdiff_t */
Chris@32 102 struct fftw_iodim64_do_not_use_me {
Chris@32 103 ptrdiff_t n; /* dimension size */
Chris@32 104 ptrdiff_t is; /* input stride */
Chris@32 105 ptrdiff_t os; /* output stride */
Chris@32 106 };
Chris@32 107
Chris@32 108 typedef void (*fftw_write_char_func_do_not_use_me)(char c, void *);
Chris@32 109 typedef int (*fftw_read_char_func_do_not_use_me)(void *);
Chris@32 110
Chris@32 111 /*
Chris@32 112 huge second-order macro that defines prototypes for all API
Chris@32 113 functions. We expand this macro for each supported precision
Chris@32 114
Chris@32 115 X: name-mangling macro
Chris@32 116 R: real data type
Chris@32 117 C: complex data type
Chris@32 118 */
Chris@32 119
Chris@32 120 #define FFTW_DEFINE_API(X, R, C) \
Chris@32 121 \
Chris@32 122 FFTW_DEFINE_COMPLEX(R, C); \
Chris@32 123 \
Chris@32 124 typedef struct X(plan_s) *X(plan); \
Chris@32 125 \
Chris@32 126 typedef struct fftw_iodim_do_not_use_me X(iodim); \
Chris@32 127 typedef struct fftw_iodim64_do_not_use_me X(iodim64); \
Chris@32 128 \
Chris@32 129 typedef enum fftw_r2r_kind_do_not_use_me X(r2r_kind); \
Chris@32 130 \
Chris@32 131 typedef fftw_write_char_func_do_not_use_me X(write_char_func); \
Chris@32 132 typedef fftw_read_char_func_do_not_use_me X(read_char_func); \
Chris@32 133 \
Chris@32 134 FFTW_EXTERN void X(execute)(const X(plan) p); \
Chris@32 135 \
Chris@32 136 FFTW_EXTERN X(plan) X(plan_dft)(int rank, const int *n, \
Chris@32 137 C *in, C *out, int sign, unsigned flags); \
Chris@32 138 \
Chris@32 139 FFTW_EXTERN X(plan) X(plan_dft_1d)(int n, C *in, C *out, int sign, \
Chris@32 140 unsigned flags); \
Chris@32 141 FFTW_EXTERN X(plan) X(plan_dft_2d)(int n0, int n1, \
Chris@32 142 C *in, C *out, int sign, unsigned flags); \
Chris@32 143 FFTW_EXTERN X(plan) X(plan_dft_3d)(int n0, int n1, int n2, \
Chris@32 144 C *in, C *out, int sign, unsigned flags); \
Chris@32 145 \
Chris@32 146 FFTW_EXTERN X(plan) X(plan_many_dft)(int rank, const int *n, \
Chris@32 147 int howmany, \
Chris@32 148 C *in, const int *inembed, \
Chris@32 149 int istride, int idist, \
Chris@32 150 C *out, const int *onembed, \
Chris@32 151 int ostride, int odist, \
Chris@32 152 int sign, unsigned flags); \
Chris@32 153 \
Chris@32 154 FFTW_EXTERN X(plan) X(plan_guru_dft)(int rank, const X(iodim) *dims, \
Chris@32 155 int howmany_rank, \
Chris@32 156 const X(iodim) *howmany_dims, \
Chris@32 157 C *in, C *out, \
Chris@32 158 int sign, unsigned flags); \
Chris@32 159 FFTW_EXTERN X(plan) X(plan_guru_split_dft)(int rank, const X(iodim) *dims, \
Chris@32 160 int howmany_rank, \
Chris@32 161 const X(iodim) *howmany_dims, \
Chris@32 162 R *ri, R *ii, R *ro, R *io, \
Chris@32 163 unsigned flags); \
Chris@32 164 \
Chris@32 165 FFTW_EXTERN X(plan) X(plan_guru64_dft)(int rank, \
Chris@32 166 const X(iodim64) *dims, \
Chris@32 167 int howmany_rank, \
Chris@32 168 const X(iodim64) *howmany_dims, \
Chris@32 169 C *in, C *out, \
Chris@32 170 int sign, unsigned flags); \
Chris@32 171 FFTW_EXTERN X(plan) X(plan_guru64_split_dft)(int rank, \
Chris@32 172 const X(iodim64) *dims, \
Chris@32 173 int howmany_rank, \
Chris@32 174 const X(iodim64) *howmany_dims, \
Chris@32 175 R *ri, R *ii, R *ro, R *io, \
Chris@32 176 unsigned flags); \
Chris@32 177 \
Chris@32 178 FFTW_EXTERN void X(execute_dft)(const X(plan) p, C *in, C *out); \
Chris@32 179 FFTW_EXTERN void X(execute_split_dft)(const X(plan) p, R *ri, R *ii, \
Chris@32 180 R *ro, R *io); \
Chris@32 181 \
Chris@32 182 FFTW_EXTERN X(plan) X(plan_many_dft_r2c)(int rank, const int *n, \
Chris@32 183 int howmany, \
Chris@32 184 R *in, const int *inembed, \
Chris@32 185 int istride, int idist, \
Chris@32 186 C *out, const int *onembed, \
Chris@32 187 int ostride, int odist, \
Chris@32 188 unsigned flags); \
Chris@32 189 \
Chris@32 190 FFTW_EXTERN X(plan) X(plan_dft_r2c)(int rank, const int *n, \
Chris@32 191 R *in, C *out, unsigned flags); \
Chris@32 192 \
Chris@32 193 FFTW_EXTERN X(plan) X(plan_dft_r2c_1d)(int n,R *in,C *out,unsigned flags); \
Chris@32 194 FFTW_EXTERN X(plan) X(plan_dft_r2c_2d)(int n0, int n1, \
Chris@32 195 R *in, C *out, unsigned flags); \
Chris@32 196 FFTW_EXTERN X(plan) X(plan_dft_r2c_3d)(int n0, int n1, \
Chris@32 197 int n2, \
Chris@32 198 R *in, C *out, unsigned flags); \
Chris@32 199 \
Chris@32 200 \
Chris@32 201 FFTW_EXTERN X(plan) X(plan_many_dft_c2r)(int rank, const int *n, \
Chris@32 202 int howmany, \
Chris@32 203 C *in, const int *inembed, \
Chris@32 204 int istride, int idist, \
Chris@32 205 R *out, const int *onembed, \
Chris@32 206 int ostride, int odist, \
Chris@32 207 unsigned flags); \
Chris@32 208 \
Chris@32 209 FFTW_EXTERN X(plan) X(plan_dft_c2r)(int rank, const int *n, \
Chris@32 210 C *in, R *out, unsigned flags); \
Chris@32 211 \
Chris@32 212 FFTW_EXTERN X(plan) X(plan_dft_c2r_1d)(int n,C *in,R *out,unsigned flags); \
Chris@32 213 FFTW_EXTERN X(plan) X(plan_dft_c2r_2d)(int n0, int n1, \
Chris@32 214 C *in, R *out, unsigned flags); \
Chris@32 215 FFTW_EXTERN X(plan) X(plan_dft_c2r_3d)(int n0, int n1, \
Chris@32 216 int n2, \
Chris@32 217 C *in, R *out, unsigned flags); \
Chris@32 218 \
Chris@32 219 FFTW_EXTERN X(plan) X(plan_guru_dft_r2c)(int rank, const X(iodim) *dims, \
Chris@32 220 int howmany_rank, \
Chris@32 221 const X(iodim) *howmany_dims, \
Chris@32 222 R *in, C *out, \
Chris@32 223 unsigned flags); \
Chris@32 224 FFTW_EXTERN X(plan) X(plan_guru_dft_c2r)(int rank, const X(iodim) *dims, \
Chris@32 225 int howmany_rank, \
Chris@32 226 const X(iodim) *howmany_dims, \
Chris@32 227 C *in, R *out, \
Chris@32 228 unsigned flags); \
Chris@32 229 \
Chris@32 230 FFTW_EXTERN X(plan) X(plan_guru_split_dft_r2c)( \
Chris@32 231 int rank, const X(iodim) *dims, \
Chris@32 232 int howmany_rank, \
Chris@32 233 const X(iodim) *howmany_dims, \
Chris@32 234 R *in, R *ro, R *io, \
Chris@32 235 unsigned flags); \
Chris@32 236 FFTW_EXTERN X(plan) X(plan_guru_split_dft_c2r)( \
Chris@32 237 int rank, const X(iodim) *dims, \
Chris@32 238 int howmany_rank, \
Chris@32 239 const X(iodim) *howmany_dims, \
Chris@32 240 R *ri, R *ii, R *out, \
Chris@32 241 unsigned flags); \
Chris@32 242 \
Chris@32 243 FFTW_EXTERN X(plan) X(plan_guru64_dft_r2c)(int rank, \
Chris@32 244 const X(iodim64) *dims, \
Chris@32 245 int howmany_rank, \
Chris@32 246 const X(iodim64) *howmany_dims, \
Chris@32 247 R *in, C *out, \
Chris@32 248 unsigned flags); \
Chris@32 249 FFTW_EXTERN X(plan) X(plan_guru64_dft_c2r)(int rank, \
Chris@32 250 const X(iodim64) *dims, \
Chris@32 251 int howmany_rank, \
Chris@32 252 const X(iodim64) *howmany_dims, \
Chris@32 253 C *in, R *out, \
Chris@32 254 unsigned flags); \
Chris@32 255 \
Chris@32 256 FFTW_EXTERN X(plan) X(plan_guru64_split_dft_r2c)( \
Chris@32 257 int rank, const X(iodim64) *dims, \
Chris@32 258 int howmany_rank, \
Chris@32 259 const X(iodim64) *howmany_dims, \
Chris@32 260 R *in, R *ro, R *io, \
Chris@32 261 unsigned flags); \
Chris@32 262 FFTW_EXTERN X(plan) X(plan_guru64_split_dft_c2r)( \
Chris@32 263 int rank, const X(iodim64) *dims, \
Chris@32 264 int howmany_rank, \
Chris@32 265 const X(iodim64) *howmany_dims, \
Chris@32 266 R *ri, R *ii, R *out, \
Chris@32 267 unsigned flags); \
Chris@32 268 \
Chris@32 269 FFTW_EXTERN void X(execute_dft_r2c)(const X(plan) p, R *in, C *out); \
Chris@32 270 FFTW_EXTERN void X(execute_dft_c2r)(const X(plan) p, C *in, R *out); \
Chris@32 271 \
Chris@32 272 FFTW_EXTERN void X(execute_split_dft_r2c)(const X(plan) p, \
Chris@32 273 R *in, R *ro, R *io); \
Chris@32 274 FFTW_EXTERN void X(execute_split_dft_c2r)(const X(plan) p, \
Chris@32 275 R *ri, R *ii, R *out); \
Chris@32 276 \
Chris@32 277 FFTW_EXTERN X(plan) X(plan_many_r2r)(int rank, const int *n, \
Chris@32 278 int howmany, \
Chris@32 279 R *in, const int *inembed, \
Chris@32 280 int istride, int idist, \
Chris@32 281 R *out, const int *onembed, \
Chris@32 282 int ostride, int odist, \
Chris@32 283 const X(r2r_kind) *kind, unsigned flags); \
Chris@32 284 \
Chris@32 285 FFTW_EXTERN X(plan) X(plan_r2r)(int rank, const int *n, R *in, R *out, \
Chris@32 286 const X(r2r_kind) *kind, unsigned flags); \
Chris@32 287 \
Chris@32 288 FFTW_EXTERN X(plan) X(plan_r2r_1d)(int n, R *in, R *out, \
Chris@32 289 X(r2r_kind) kind, unsigned flags); \
Chris@32 290 FFTW_EXTERN X(plan) X(plan_r2r_2d)(int n0, int n1, R *in, R *out, \
Chris@32 291 X(r2r_kind) kind0, X(r2r_kind) kind1, \
Chris@32 292 unsigned flags); \
Chris@32 293 FFTW_EXTERN X(plan) X(plan_r2r_3d)(int n0, int n1, int n2, \
Chris@32 294 R *in, R *out, X(r2r_kind) kind0, \
Chris@32 295 X(r2r_kind) kind1, X(r2r_kind) kind2, \
Chris@32 296 unsigned flags); \
Chris@32 297 \
Chris@32 298 FFTW_EXTERN X(plan) X(plan_guru_r2r)(int rank, const X(iodim) *dims, \
Chris@32 299 int howmany_rank, \
Chris@32 300 const X(iodim) *howmany_dims, \
Chris@32 301 R *in, R *out, \
Chris@32 302 const X(r2r_kind) *kind, unsigned flags); \
Chris@32 303 \
Chris@32 304 FFTW_EXTERN X(plan) X(plan_guru64_r2r)(int rank, const X(iodim64) *dims, \
Chris@32 305 int howmany_rank, \
Chris@32 306 const X(iodim64) *howmany_dims, \
Chris@32 307 R *in, R *out, \
Chris@32 308 const X(r2r_kind) *kind, unsigned flags); \
Chris@32 309 \
Chris@32 310 FFTW_EXTERN void X(execute_r2r)(const X(plan) p, R *in, R *out); \
Chris@32 311 \
Chris@32 312 FFTW_EXTERN void X(destroy_plan)(X(plan) p); \
Chris@32 313 FFTW_EXTERN void X(forget_wisdom)(void); \
Chris@32 314 FFTW_EXTERN void X(cleanup)(void); \
Chris@32 315 \
Chris@32 316 FFTW_EXTERN void X(set_timelimit)(double t); \
Chris@32 317 \
Chris@32 318 FFTW_EXTERN void X(plan_with_nthreads)(int nthreads); \
Chris@32 319 FFTW_EXTERN int X(init_threads)(void); \
Chris@32 320 FFTW_EXTERN void X(cleanup_threads)(void); \
Chris@32 321 \
Chris@32 322 FFTW_EXTERN int X(export_wisdom_to_filename)(const char *filename); \
Chris@32 323 FFTW_EXTERN void X(export_wisdom_to_file)(FILE *output_file); \
Chris@32 324 FFTW_EXTERN char *X(export_wisdom_to_string)(void); \
Chris@32 325 FFTW_EXTERN void X(export_wisdom)(X(write_char_func) write_char, \
Chris@32 326 void *data); \
Chris@32 327 FFTW_EXTERN int X(import_system_wisdom)(void); \
Chris@32 328 FFTW_EXTERN int X(import_wisdom_from_filename)(const char *filename); \
Chris@32 329 FFTW_EXTERN int X(import_wisdom_from_file)(FILE *input_file); \
Chris@32 330 FFTW_EXTERN int X(import_wisdom_from_string)(const char *input_string); \
Chris@32 331 FFTW_EXTERN int X(import_wisdom)(X(read_char_func) read_char, void *data); \
Chris@32 332 \
Chris@32 333 FFTW_EXTERN void X(fprint_plan)(const X(plan) p, FILE *output_file); \
Chris@32 334 FFTW_EXTERN void X(print_plan)(const X(plan) p); \
Chris@32 335 \
Chris@32 336 FFTW_EXTERN void *X(malloc)(size_t n); \
Chris@32 337 FFTW_EXTERN R *X(alloc_real)(size_t n); \
Chris@32 338 FFTW_EXTERN C *X(alloc_complex)(size_t n); \
Chris@32 339 FFTW_EXTERN void X(free)(void *p); \
Chris@32 340 \
Chris@32 341 FFTW_EXTERN void X(flops)(const X(plan) p, \
Chris@32 342 double *add, double *mul, double *fmas); \
Chris@32 343 FFTW_EXTERN double X(estimate_cost)(const X(plan) p); \
Chris@32 344 FFTW_EXTERN double X(cost)(const X(plan) p); \
Chris@32 345 \
Chris@32 346 FFTW_EXTERN const char X(version)[]; \
Chris@32 347 FFTW_EXTERN const char X(cc)[]; \
Chris@32 348 FFTW_EXTERN const char X(codelet_optim)[];
Chris@32 349
Chris@32 350
Chris@32 351 /* end of FFTW_DEFINE_API macro */
Chris@32 352
Chris@32 353 FFTW_DEFINE_API(FFTW_MANGLE_DOUBLE, double, fftw_complex)
Chris@32 354 FFTW_DEFINE_API(FFTW_MANGLE_FLOAT, float, fftwf_complex)
Chris@32 355 FFTW_DEFINE_API(FFTW_MANGLE_LONG_DOUBLE, long double, fftwl_complex)
Chris@32 356
Chris@32 357 /* __float128 (quad precision) is a gcc extension on i386, x86_64, and ia64
Chris@32 358 for gcc >= 4.6 (compiled in FFTW with --enable-quad-precision) */
Chris@32 359 #if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) \
Chris@32 360 && !(defined(__ICC) || defined(__INTEL_COMPILER)) \
Chris@32 361 && (defined(__i386__) || defined(__x86_64__) || defined(__ia64__))
Chris@32 362 # if !defined(FFTW_NO_Complex) && defined(_Complex_I) && defined(complex) && defined(I)
Chris@32 363 /* note: __float128 is a typedef, which is not supported with the _Complex
Chris@32 364 keyword in gcc, so instead we use this ugly __attribute__ version.
Chris@32 365 However, we can't simply pass the __attribute__ version to
Chris@32 366 FFTW_DEFINE_API because the __attribute__ confuses gcc in pointer
Chris@32 367 types. Hence redefining FFTW_DEFINE_COMPLEX. Ugh. */
Chris@32 368 # undef FFTW_DEFINE_COMPLEX
Chris@32 369 # define FFTW_DEFINE_COMPLEX(R, C) typedef _Complex float __attribute__((mode(TC))) C
Chris@32 370 # endif
Chris@32 371 FFTW_DEFINE_API(FFTW_MANGLE_QUAD, __float128, fftwq_complex)
Chris@32 372 #endif
Chris@32 373
Chris@32 374 #define FFTW_FORWARD (-1)
Chris@32 375 #define FFTW_BACKWARD (+1)
Chris@32 376
Chris@32 377 #define FFTW_NO_TIMELIMIT (-1.0)
Chris@32 378
Chris@32 379 /* documented flags */
Chris@32 380 #define FFTW_MEASURE (0U)
Chris@32 381 #define FFTW_DESTROY_INPUT (1U << 0)
Chris@32 382 #define FFTW_UNALIGNED (1U << 1)
Chris@32 383 #define FFTW_CONSERVE_MEMORY (1U << 2)
Chris@32 384 #define FFTW_EXHAUSTIVE (1U << 3) /* NO_EXHAUSTIVE is default */
Chris@32 385 #define FFTW_PRESERVE_INPUT (1U << 4) /* cancels FFTW_DESTROY_INPUT */
Chris@32 386 #define FFTW_PATIENT (1U << 5) /* IMPATIENT is default */
Chris@32 387 #define FFTW_ESTIMATE (1U << 6)
Chris@32 388 #define FFTW_WISDOM_ONLY (1U << 21)
Chris@32 389
Chris@32 390 /* undocumented beyond-guru flags */
Chris@32 391 #define FFTW_ESTIMATE_PATIENT (1U << 7)
Chris@32 392 #define FFTW_BELIEVE_PCOST (1U << 8)
Chris@32 393 #define FFTW_NO_DFT_R2HC (1U << 9)
Chris@32 394 #define FFTW_NO_NONTHREADED (1U << 10)
Chris@32 395 #define FFTW_NO_BUFFERING (1U << 11)
Chris@32 396 #define FFTW_NO_INDIRECT_OP (1U << 12)
Chris@32 397 #define FFTW_ALLOW_LARGE_GENERIC (1U << 13) /* NO_LARGE_GENERIC is default */
Chris@32 398 #define FFTW_NO_RANK_SPLITS (1U << 14)
Chris@32 399 #define FFTW_NO_VRANK_SPLITS (1U << 15)
Chris@32 400 #define FFTW_NO_VRECURSE (1U << 16)
Chris@32 401 #define FFTW_NO_SIMD (1U << 17)
Chris@32 402 #define FFTW_NO_SLOW (1U << 18)
Chris@32 403 #define FFTW_NO_FIXED_RADIX_LARGE_N (1U << 19)
Chris@32 404 #define FFTW_ALLOW_PRUNING (1U << 20)
Chris@32 405
Chris@32 406 #ifdef __cplusplus
Chris@32 407 } /* extern "C" */
Chris@32 408 #endif /* __cplusplus */
Chris@32 409
Chris@32 410 #endif /* FFTW3_H */