Win7 FFTW3 configuration for 64-bit _vs2010

The configuration process referred to http://www.tuicool.com/articles/JbmINj, but according to the blog, I did not succeed on my machine.

The following describes my configuration process, for reference only!

[1] Download FFTW Library

Http://www.fftw.org/install/windows.html official.

My computer is a win7 64-bit system.

After downloading, unzip.

[2] using Lib.exe to generate the appropriate LIB file

This step notes that the path is C:\Program Files (x86) \microsoft Visual Studio 10.0\vc\bin\amd64\lib.exe.
Note that the following error may occur for the path.

In cmd, set the path to the amd64\ path, copy the Libfftw3-3.def,libfftw3l-3.def,libfftw3f-3.def to the path, execute the LIB command,

64-bit version:

Lib/machine:x64/def:libfftw3f-3.def

Lib/machine:x64/def:libfftw3-3.def

Lib/machine:x64/def:libfftw3l-3.def

Generate library file Libfftw3-3.lib libfftw3f-3.lib libfftw3l-3.lib. Note: If an error occurs after you enter a command in CMD,

Please re-open CMD as an administrator and repeat the configuration command above to resolve the problem.

[3] The resulting library file Libfftw3-3.lib Libfftw3f-3.lib Libfftw3l-3.lib into the VC in the Lib folder, unfortunately this did not succeed, the program compiled did not pass, try to put these 3 static libraries in the lib/ amd64/ Path, the compilation passed.

Put Fftw3.h into the VC include folder, place DLL file, here need to pay attention to 64bit system, still put in windows/system32 file, I do, Because I created the WIN32 console application in VS2010 in the normal steps, tried it once, put it in SysWOW64, the program was compiled, but the program prompts for a missing dynamic library at run time.

[4] New engineering applications:

Header file: #include "fftw3.h",

Set parameters: "Project" ==> "Project Properties" ==> "Configuration Properties" ==> "linker" ==> "enter" ==> "Additional Dependencies", add the following three items:

Libfftw3-3.lib

Libfftw3f-3.lib

Libfftw3l-3.lib

[5] The program runs, the test example is as follows:

Https://github.com/undees/fftw-example/blob/master/fftw_example.c

After modification, the 8-point FFT, the results and MATLAB FFT results validation Consistent, here output is the amplitude, real and imaginary part of the module.

/* Start reading here */#include "fftw3.h" #define num_points 8/* never mind this bit */#include <stdio.h> #include &L t;math.h> #define REAL 0#define IMAG 1//#define M_PI 3.14159265358979323846void acquire_from_somewhere (Fftw_complex     * signal) {/* Generate-sine waves of different frequencies and * amplitudes.    */int i;        for (i = 0; i < num_points; ++i) {//Double theta = (double) I/(double) num_points * M_PI;        /*signal[i][real] = 1.0 * COS (10.0 * theta) + 0.5 * cos (25.0 * theta); SIGNAL[I][IMAG] = 1.0 * SIN (10.0 * theta) + 0.5 * sin (25.0 * theta); */signal[i][real] = (double) i    ;p rintf ("start:[%d]=%f\n", I,signal[i][real]); Signal[i][imag] = (double) 0.0;    }}void Do_something_with (fftw_complex* result) {int i;                          for (i = 0; i < num_points; ++i) {Double mag = sqrt (result[i][real] * Result[i][real] +        RESULT[I][IMAG] * Result[i][imag]); printf ("%g\n ", mag);    }}/* Resume Reading here */int Main () {Fftw_complex signal[num_points];    Fftw_complex Result[num_points];                                      Fftw_plan plan = fftw_plan_dft_1d (num_points, Signal,    result, Fftw_forward, fftw_estimate);    Acquire_from_somewhere (signal);    Fftw_execute (plan);    Do_something_with (result);    Fftw_destroy_plan (plan); return 0;}

Win7 FFTW3 configuration for 64-bit _vs2010