cannam@167: /* cannam@167: * Copyright (c) 2003, 2007-14 Matteo Frigo cannam@167: * Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology cannam@167: * cannam@167: * The following statement of license applies *only* to this header file, cannam@167: * and *not* to the other files distributed with FFTW or derived therefrom: cannam@167: * cannam@167: * Redistribution and use in source and binary forms, with or without cannam@167: * modification, are permitted provided that the following conditions cannam@167: * are met: cannam@167: * cannam@167: * 1. Redistributions of source code must retain the above copyright cannam@167: * notice, this list of conditions and the following disclaimer. cannam@167: * cannam@167: * 2. Redistributions in binary form must reproduce the above copyright cannam@167: * notice, this list of conditions and the following disclaimer in the cannam@167: * documentation and/or other materials provided with the distribution. cannam@167: * cannam@167: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS cannam@167: * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED cannam@167: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE cannam@167: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY cannam@167: * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL cannam@167: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE cannam@167: * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS cannam@167: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, cannam@167: * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING cannam@167: * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS cannam@167: * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. cannam@167: */ cannam@167: cannam@167: /***************************** NOTE TO USERS ********************************* cannam@167: * cannam@167: * THIS IS A HEADER FILE, NOT A MANUAL cannam@167: * cannam@167: * If you want to know how to use FFTW, please read the manual, cannam@167: * online at http://www.fftw.org/doc/ and also included with FFTW. cannam@167: * For a quick start, see the manual's tutorial section. cannam@167: * cannam@167: * (Reading header files to learn how to use a library is a habit cannam@167: * stemming from code lacking a proper manual. Arguably, it's a cannam@167: * *bad* habit in most cases, because header files can contain cannam@167: * interfaces that are not part of the public, stable API.) cannam@167: * cannam@167: ****************************************************************************/ cannam@167: cannam@167: #ifndef FFTW3_H cannam@167: #define FFTW3_H cannam@167: cannam@167: #include cannam@167: cannam@167: #ifdef __cplusplus cannam@167: extern "C" cannam@167: { cannam@167: #endif /* __cplusplus */ cannam@167: cannam@167: /* If is included, use the C99 complex type. Otherwise cannam@167: define a type bit-compatible with C99 complex */ cannam@167: #if !defined(FFTW_NO_Complex) && defined(_Complex_I) && defined(complex) && defined(I) cannam@167: # define FFTW_DEFINE_COMPLEX(R, C) typedef R _Complex C cannam@167: #else cannam@167: # define FFTW_DEFINE_COMPLEX(R, C) typedef R C[2] cannam@167: #endif cannam@167: cannam@167: #define FFTW_CONCAT(prefix, name) prefix ## name cannam@167: #define FFTW_MANGLE_DOUBLE(name) FFTW_CONCAT(fftw_, name) cannam@167: #define FFTW_MANGLE_FLOAT(name) FFTW_CONCAT(fftwf_, name) cannam@167: #define FFTW_MANGLE_LONG_DOUBLE(name) FFTW_CONCAT(fftwl_, name) cannam@167: #define FFTW_MANGLE_QUAD(name) FFTW_CONCAT(fftwq_, name) cannam@167: cannam@167: /* IMPORTANT: for Windows compilers, you should add a line cannam@167: #define FFTW_DLL cannam@167: here and in kernel/ifftw.h if you are compiling/using FFTW as a cannam@167: DLL, in order to do the proper importing/exporting, or cannam@167: alternatively compile with -DFFTW_DLL or the equivalent cannam@167: command-line flag. This is not necessary under MinGW/Cygwin, where cannam@167: libtool does the imports/exports automatically. */ cannam@167: #if defined(FFTW_DLL) && (defined(_WIN32) || defined(__WIN32__)) cannam@167: /* annoying Windows syntax for shared-library declarations */ cannam@167: # if defined(COMPILING_FFTW) /* defined in api.h when compiling FFTW */ cannam@167: # define FFTW_EXTERN extern __declspec(dllexport) cannam@167: # else /* user is calling FFTW; import symbol */ cannam@167: # define FFTW_EXTERN extern __declspec(dllimport) cannam@167: # endif cannam@167: #else cannam@167: # define FFTW_EXTERN extern cannam@167: #endif cannam@167: cannam@167: /* specify calling convention (Windows only) */ cannam@167: #if defined(_WIN32) || defined(__WIN32__) cannam@167: # define FFTW_CDECL __cdecl cannam@167: #else cannam@167: # define FFTW_CDECL cannam@167: #endif cannam@167: cannam@167: enum fftw_r2r_kind_do_not_use_me { cannam@167: FFTW_R2HC=0, FFTW_HC2R=1, FFTW_DHT=2, cannam@167: FFTW_REDFT00=3, FFTW_REDFT01=4, FFTW_REDFT10=5, FFTW_REDFT11=6, cannam@167: FFTW_RODFT00=7, FFTW_RODFT01=8, FFTW_RODFT10=9, FFTW_RODFT11=10 cannam@167: }; cannam@167: cannam@167: struct fftw_iodim_do_not_use_me { cannam@167: int n; /* dimension size */ cannam@167: int is; /* input stride */ cannam@167: int os; /* output stride */ cannam@167: }; cannam@167: cannam@167: #include /* for ptrdiff_t */ cannam@167: struct fftw_iodim64_do_not_use_me { cannam@167: ptrdiff_t n; /* dimension size */ cannam@167: ptrdiff_t is; /* input stride */ cannam@167: ptrdiff_t os; /* output stride */ cannam@167: }; cannam@167: cannam@167: typedef void (FFTW_CDECL *fftw_write_char_func_do_not_use_me)(char c, void *); cannam@167: typedef int (FFTW_CDECL *fftw_read_char_func_do_not_use_me)(void *); cannam@167: cannam@167: /* cannam@167: huge second-order macro that defines prototypes for all API cannam@167: functions. We expand this macro for each supported precision cannam@167: cannam@167: X: name-mangling macro cannam@167: R: real data type cannam@167: C: complex data type cannam@167: */ cannam@167: cannam@167: #define FFTW_DEFINE_API(X, R, C) \ cannam@167: \ cannam@167: FFTW_DEFINE_COMPLEX(R, C); \ cannam@167: \ cannam@167: typedef struct X(plan_s) *X(plan); \ cannam@167: \ cannam@167: typedef struct fftw_iodim_do_not_use_me X(iodim); \ cannam@167: typedef struct fftw_iodim64_do_not_use_me X(iodim64); \ cannam@167: \ cannam@167: typedef enum fftw_r2r_kind_do_not_use_me X(r2r_kind); \ cannam@167: \ cannam@167: typedef fftw_write_char_func_do_not_use_me X(write_char_func); \ cannam@167: typedef fftw_read_char_func_do_not_use_me X(read_char_func); \ cannam@167: \ cannam@167: FFTW_EXTERN void \ cannam@167: FFTW_CDECL X(execute)(const X(plan) p); \ cannam@167: \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_dft)(int rank, const int *n, \ cannam@167: C *in, C *out, int sign, unsigned flags); \ cannam@167: \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_dft_1d)(int n, C *in, C *out, int sign, \ cannam@167: unsigned flags); \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_dft_2d)(int n0, int n1, \ cannam@167: C *in, C *out, int sign, unsigned flags); \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_dft_3d)(int n0, int n1, int n2, \ cannam@167: C *in, C *out, int sign, unsigned flags); \ cannam@167: \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_many_dft)(int rank, const int *n, \ cannam@167: int howmany, \ cannam@167: C *in, const int *inembed, \ cannam@167: int istride, int idist, \ cannam@167: C *out, const int *onembed, \ cannam@167: int ostride, int odist, \ cannam@167: int sign, unsigned flags); \ cannam@167: \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_guru_dft)(int rank, const X(iodim) *dims, \ cannam@167: int howmany_rank, \ cannam@167: const X(iodim) *howmany_dims, \ cannam@167: C *in, C *out, \ cannam@167: int sign, unsigned flags); \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_guru_split_dft)(int rank, const X(iodim) *dims, \ cannam@167: int howmany_rank, \ cannam@167: const X(iodim) *howmany_dims, \ cannam@167: R *ri, R *ii, R *ro, R *io, \ cannam@167: unsigned flags); \ cannam@167: \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_guru64_dft)(int rank, \ cannam@167: const X(iodim64) *dims, \ cannam@167: int howmany_rank, \ cannam@167: const X(iodim64) *howmany_dims, \ cannam@167: C *in, C *out, \ cannam@167: int sign, unsigned flags); \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_guru64_split_dft)(int rank, \ cannam@167: const X(iodim64) *dims, \ cannam@167: int howmany_rank, \ cannam@167: const X(iodim64) *howmany_dims, \ cannam@167: R *ri, R *ii, R *ro, R *io, \ cannam@167: unsigned flags); \ cannam@167: \ cannam@167: FFTW_EXTERN void \ cannam@167: FFTW_CDECL X(execute_dft)(const X(plan) p, C *in, C *out); \ cannam@167: \ cannam@167: FFTW_EXTERN void \ cannam@167: FFTW_CDECL X(execute_split_dft)(const X(plan) p, R *ri, R *ii, \ cannam@167: R *ro, R *io); \ cannam@167: \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_many_dft_r2c)(int rank, const int *n, \ cannam@167: int howmany, \ cannam@167: R *in, const int *inembed, \ cannam@167: int istride, int idist, \ cannam@167: C *out, const int *onembed, \ cannam@167: int ostride, int odist, \ cannam@167: unsigned flags); \ cannam@167: \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_dft_r2c)(int rank, const int *n, \ cannam@167: R *in, C *out, unsigned flags); \ cannam@167: \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_dft_r2c_1d)(int n,R *in,C *out,unsigned flags); \ cannam@167: \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_dft_r2c_2d)(int n0, int n1, \ cannam@167: R *in, C *out, unsigned flags); \ cannam@167: \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_dft_r2c_3d)(int n0, int n1, \ cannam@167: int n2, \ cannam@167: R *in, C *out, unsigned flags); \ cannam@167: \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_many_dft_c2r)(int rank, const int *n, \ cannam@167: int howmany, \ cannam@167: C *in, const int *inembed, \ cannam@167: int istride, int idist, \ cannam@167: R *out, const int *onembed, \ cannam@167: int ostride, int odist, \ cannam@167: unsigned flags); \ cannam@167: \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_dft_c2r)(int rank, const int *n, \ cannam@167: C *in, R *out, unsigned flags); \ cannam@167: \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_dft_c2r_1d)(int n,C *in,R *out,unsigned flags); \ cannam@167: \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_dft_c2r_2d)(int n0, int n1, \ cannam@167: C *in, R *out, unsigned flags); \ cannam@167: \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_dft_c2r_3d)(int n0, int n1, \ cannam@167: int n2, \ cannam@167: C *in, R *out, unsigned flags); \ cannam@167: \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_guru_dft_r2c)(int rank, const X(iodim) *dims, \ cannam@167: int howmany_rank, \ cannam@167: const X(iodim) *howmany_dims, \ cannam@167: R *in, C *out, \ cannam@167: unsigned flags); \ cannam@167: \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_guru_dft_c2r)(int rank, const X(iodim) *dims, \ cannam@167: int howmany_rank, \ cannam@167: const X(iodim) *howmany_dims, \ cannam@167: C *in, R *out, \ cannam@167: unsigned flags); \ cannam@167: \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_guru_split_dft_r2c)(int rank, const X(iodim) *dims, \ cannam@167: int howmany_rank, \ cannam@167: const X(iodim) *howmany_dims, \ cannam@167: R *in, R *ro, R *io, \ cannam@167: unsigned flags); \ cannam@167: \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_guru_split_dft_c2r)(int rank, const X(iodim) *dims, \ cannam@167: int howmany_rank, \ cannam@167: const X(iodim) *howmany_dims, \ cannam@167: R *ri, R *ii, R *out, \ cannam@167: unsigned flags); \ cannam@167: \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_guru64_dft_r2c)(int rank, \ cannam@167: const X(iodim64) *dims, \ cannam@167: int howmany_rank, \ cannam@167: const X(iodim64) *howmany_dims, \ cannam@167: R *in, C *out, \ cannam@167: unsigned flags); \ cannam@167: \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_guru64_dft_c2r)(int rank, \ cannam@167: const X(iodim64) *dims, \ cannam@167: int howmany_rank, \ cannam@167: const X(iodim64) *howmany_dims, \ cannam@167: C *in, R *out, \ cannam@167: unsigned flags); \ cannam@167: \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_guru64_split_dft_r2c)(int rank, const X(iodim64) *dims, \ cannam@167: int howmany_rank, \ cannam@167: const X(iodim64) *howmany_dims, \ cannam@167: R *in, R *ro, R *io, \ cannam@167: unsigned flags); \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_guru64_split_dft_c2r)(int rank, const X(iodim64) *dims, \ cannam@167: int howmany_rank, \ cannam@167: const X(iodim64) *howmany_dims, \ cannam@167: R *ri, R *ii, R *out, \ cannam@167: unsigned flags); \ cannam@167: \ cannam@167: FFTW_EXTERN void \ cannam@167: FFTW_CDECL X(execute_dft_r2c)(const X(plan) p, R *in, C *out); \ cannam@167: \ cannam@167: FFTW_EXTERN void \ cannam@167: FFTW_CDECL X(execute_dft_c2r)(const X(plan) p, C *in, R *out); \ cannam@167: \ cannam@167: FFTW_EXTERN void \ cannam@167: FFTW_CDECL X(execute_split_dft_r2c)(const X(plan) p, \ cannam@167: R *in, R *ro, R *io); \ cannam@167: \ cannam@167: FFTW_EXTERN void \ cannam@167: FFTW_CDECL X(execute_split_dft_c2r)(const X(plan) p, \ cannam@167: R *ri, R *ii, R *out); \ cannam@167: \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_many_r2r)(int rank, const int *n, \ cannam@167: int howmany, \ cannam@167: R *in, const int *inembed, \ cannam@167: int istride, int idist, \ cannam@167: R *out, const int *onembed, \ cannam@167: int ostride, int odist, \ cannam@167: const X(r2r_kind) *kind, unsigned flags); \ cannam@167: \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_r2r)(int rank, const int *n, R *in, R *out, \ cannam@167: const X(r2r_kind) *kind, unsigned flags); \ cannam@167: \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_r2r_1d)(int n, R *in, R *out, \ cannam@167: X(r2r_kind) kind, unsigned flags); \ cannam@167: \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_r2r_2d)(int n0, int n1, R *in, R *out, \ cannam@167: X(r2r_kind) kind0, X(r2r_kind) kind1, \ cannam@167: unsigned flags); \ cannam@167: \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_r2r_3d)(int n0, int n1, int n2, \ cannam@167: R *in, R *out, X(r2r_kind) kind0, \ cannam@167: X(r2r_kind) kind1, X(r2r_kind) kind2, \ cannam@167: unsigned flags); \ cannam@167: \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_guru_r2r)(int rank, const X(iodim) *dims, \ cannam@167: int howmany_rank, \ cannam@167: const X(iodim) *howmany_dims, \ cannam@167: R *in, R *out, \ cannam@167: const X(r2r_kind) *kind, unsigned flags); \ cannam@167: \ cannam@167: FFTW_EXTERN X(plan) \ cannam@167: FFTW_CDECL X(plan_guru64_r2r)(int rank, const X(iodim64) *dims, \ cannam@167: int howmany_rank, \ cannam@167: const X(iodim64) *howmany_dims, \ cannam@167: R *in, R *out, \ cannam@167: const X(r2r_kind) *kind, unsigned flags); \ cannam@167: \ cannam@167: FFTW_EXTERN void \ cannam@167: FFTW_CDECL X(execute_r2r)(const X(plan) p, R *in, R *out); \ cannam@167: \ cannam@167: FFTW_EXTERN void \ cannam@167: FFTW_CDECL X(destroy_plan)(X(plan) p); \ cannam@167: \ cannam@167: FFTW_EXTERN void \ cannam@167: FFTW_CDECL X(forget_wisdom)(void); \ cannam@167: FFTW_EXTERN void \ cannam@167: FFTW_CDECL X(cleanup)(void); \ cannam@167: \ cannam@167: FFTW_EXTERN void \ cannam@167: FFTW_CDECL X(set_timelimit)(double t); \ cannam@167: \ cannam@167: FFTW_EXTERN void \ cannam@167: FFTW_CDECL X(plan_with_nthreads)(int nthreads); \ cannam@167: \ cannam@167: FFTW_EXTERN int \ cannam@167: FFTW_CDECL X(init_threads)(void); \ cannam@167: \ cannam@167: FFTW_EXTERN void \ cannam@167: FFTW_CDECL X(cleanup_threads)(void); \ cannam@167: \ cannam@167: FFTW_EXTERN void \ cannam@167: FFTW_CDECL X(make_planner_thread_safe)(void); \ cannam@167: \ cannam@167: FFTW_EXTERN int \ cannam@167: FFTW_CDECL X(export_wisdom_to_filename)(const char *filename); \ cannam@167: \ cannam@167: FFTW_EXTERN void \ cannam@167: FFTW_CDECL X(export_wisdom_to_file)(FILE *output_file); \ cannam@167: \ cannam@167: FFTW_EXTERN char * \ cannam@167: FFTW_CDECL X(export_wisdom_to_string)(void); \ cannam@167: \ cannam@167: FFTW_EXTERN void \ cannam@167: FFTW_CDECL X(export_wisdom)(X(write_char_func) write_char, \ cannam@167: void *data); \ cannam@167: FFTW_EXTERN int \ cannam@167: FFTW_CDECL X(import_system_wisdom)(void); \ cannam@167: \ cannam@167: FFTW_EXTERN int \ cannam@167: FFTW_CDECL X(import_wisdom_from_filename)(const char *filename); \ cannam@167: \ cannam@167: FFTW_EXTERN int \ cannam@167: FFTW_CDECL X(import_wisdom_from_file)(FILE *input_file); \ cannam@167: \ cannam@167: FFTW_EXTERN int \ cannam@167: FFTW_CDECL X(import_wisdom_from_string)(const char *input_string); \ cannam@167: \ cannam@167: FFTW_EXTERN int \ cannam@167: FFTW_CDECL X(import_wisdom)(X(read_char_func) read_char, void *data); \ cannam@167: \ cannam@167: FFTW_EXTERN void \ cannam@167: FFTW_CDECL X(fprint_plan)(const X(plan) p, FILE *output_file); \ cannam@167: \ cannam@167: FFTW_EXTERN void \ cannam@167: FFTW_CDECL X(print_plan)(const X(plan) p); \ cannam@167: \ cannam@167: FFTW_EXTERN char * \ cannam@167: FFTW_CDECL X(sprint_plan)(const X(plan) p); \ cannam@167: \ cannam@167: FFTW_EXTERN void * \ cannam@167: FFTW_CDECL X(malloc)(size_t n); \ cannam@167: \ cannam@167: FFTW_EXTERN R * \ cannam@167: FFTW_CDECL X(alloc_real)(size_t n); \ cannam@167: FFTW_EXTERN C * \ cannam@167: FFTW_CDECL X(alloc_complex)(size_t n); \ cannam@167: \ cannam@167: FFTW_EXTERN void \ cannam@167: FFTW_CDECL X(free)(void *p); \ cannam@167: \ cannam@167: FFTW_EXTERN void \ cannam@167: FFTW_CDECL X(flops)(const X(plan) p, \ cannam@167: double *add, double *mul, double *fmas); \ cannam@167: FFTW_EXTERN double \ cannam@167: FFTW_CDECL X(estimate_cost)(const X(plan) p); \ cannam@167: \ cannam@167: FFTW_EXTERN double \ cannam@167: FFTW_CDECL X(cost)(const X(plan) p); \ cannam@167: \ cannam@167: FFTW_EXTERN int \ cannam@167: FFTW_CDECL X(alignment_of)(R *p); \ cannam@167: \ cannam@167: FFTW_EXTERN const char X(version)[]; \ cannam@167: FFTW_EXTERN const char X(cc)[]; \ cannam@167: FFTW_EXTERN const char X(codelet_optim)[]; cannam@167: cannam@167: cannam@167: /* end of FFTW_DEFINE_API macro */ cannam@167: cannam@167: FFTW_DEFINE_API(FFTW_MANGLE_DOUBLE, double, fftw_complex) cannam@167: FFTW_DEFINE_API(FFTW_MANGLE_FLOAT, float, fftwf_complex) cannam@167: FFTW_DEFINE_API(FFTW_MANGLE_LONG_DOUBLE, long double, fftwl_complex) cannam@167: cannam@167: /* __float128 (quad precision) is a gcc extension on i386, x86_64, and ia64 cannam@167: for gcc >= 4.6 (compiled in FFTW with --enable-quad-precision) */ cannam@167: #if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) \ cannam@167: && !(defined(__ICC) || defined(__INTEL_COMPILER) || defined(__CUDACC__) || defined(__PGI)) \ cannam@167: && (defined(__i386__) || defined(__x86_64__) || defined(__ia64__)) cannam@167: # if !defined(FFTW_NO_Complex) && defined(_Complex_I) && defined(complex) && defined(I) cannam@167: /* note: __float128 is a typedef, which is not supported with the _Complex cannam@167: keyword in gcc, so instead we use this ugly __attribute__ version. cannam@167: However, we can't simply pass the __attribute__ version to cannam@167: FFTW_DEFINE_API because the __attribute__ confuses gcc in pointer cannam@167: types. Hence redefining FFTW_DEFINE_COMPLEX. Ugh. */ cannam@167: # undef FFTW_DEFINE_COMPLEX cannam@167: # define FFTW_DEFINE_COMPLEX(R, C) typedef _Complex float __attribute__((mode(TC))) C cannam@167: # endif cannam@167: FFTW_DEFINE_API(FFTW_MANGLE_QUAD, __float128, fftwq_complex) cannam@167: #endif cannam@167: cannam@167: #define FFTW_FORWARD (-1) cannam@167: #define FFTW_BACKWARD (+1) cannam@167: cannam@167: #define FFTW_NO_TIMELIMIT (-1.0) cannam@167: cannam@167: /* documented flags */ cannam@167: #define FFTW_MEASURE (0U) cannam@167: #define FFTW_DESTROY_INPUT (1U << 0) cannam@167: #define FFTW_UNALIGNED (1U << 1) cannam@167: #define FFTW_CONSERVE_MEMORY (1U << 2) cannam@167: #define FFTW_EXHAUSTIVE (1U << 3) /* NO_EXHAUSTIVE is default */ cannam@167: #define FFTW_PRESERVE_INPUT (1U << 4) /* cancels FFTW_DESTROY_INPUT */ cannam@167: #define FFTW_PATIENT (1U << 5) /* IMPATIENT is default */ cannam@167: #define FFTW_ESTIMATE (1U << 6) cannam@167: #define FFTW_WISDOM_ONLY (1U << 21) cannam@167: cannam@167: /* undocumented beyond-guru flags */ cannam@167: #define FFTW_ESTIMATE_PATIENT (1U << 7) cannam@167: #define FFTW_BELIEVE_PCOST (1U << 8) cannam@167: #define FFTW_NO_DFT_R2HC (1U << 9) cannam@167: #define FFTW_NO_NONTHREADED (1U << 10) cannam@167: #define FFTW_NO_BUFFERING (1U << 11) cannam@167: #define FFTW_NO_INDIRECT_OP (1U << 12) cannam@167: #define FFTW_ALLOW_LARGE_GENERIC (1U << 13) /* NO_LARGE_GENERIC is default */ cannam@167: #define FFTW_NO_RANK_SPLITS (1U << 14) cannam@167: #define FFTW_NO_VRANK_SPLITS (1U << 15) cannam@167: #define FFTW_NO_VRECURSE (1U << 16) cannam@167: #define FFTW_NO_SIMD (1U << 17) cannam@167: #define FFTW_NO_SLOW (1U << 18) cannam@167: #define FFTW_NO_FIXED_RADIX_LARGE_N (1U << 19) cannam@167: #define FFTW_ALLOW_PRUNING (1U << 20) cannam@167: cannam@167: #ifdef __cplusplus cannam@167: } /* extern "C" */ cannam@167: #endif /* __cplusplus */ cannam@167: cannam@167: #endif /* FFTW3_H */