diff options
Diffstat (limited to 'blackman~.c')
| -rw-r--r-- | blackman~.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/blackman~.c b/blackman~.c index 1e48fcd..af4732f 100644 --- a/blackman~.c +++ b/blackman~.c @@ -20,14 +20,30 @@ */ #include "m_pd.h" -#include "windowFunctions.h" #include <stdlib.h> -#ifdef NT +#include <math.h> + +#ifdef _WIN32 +#define M_PI 3.14159265358979323846 +#endif + +#ifdef _MSC_VER #pragma warning( disable : 4244 ) #pragma warning( disable : 4305 ) #endif + #define DEFBLOCKSIZE 64 +void fillBlackman(float *vec, int n) { + int i; + float xShift = (float)n / 2; + float x; + for (i = 0; i < n; i++) { + x = (i - xShift) / xShift; + vec[i] = (float)(0.42 + (0.5 * cos(M_PI * x)) + (0.08 * cos (2 * M_PI * x))); + } +} + static t_class *blackman_class; typedef struct _blackman { |