Initial community commit

Src/nsutil/fft.h

@@ -0,0 +1,30 @@
+#pragma once
+#pragma once
+#include <bfc/platform/types.h>
+#include <bfc/platform/export.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef NSUTIL_EXPORTS
+#define NSUTIL_EXPORT __declspec(dllexport)
+#else
+#define NSUTIL_EXPORT __declspec(dllimport)
+#endif
+
+	enum
+	{
+		nsutil_fft_none = 0,
+		nsutil_fft_fast = 1,
+		nsutil_fft_accurate = 2,
+	};
+
+typedef void *nsutil_fft_t;
+NSUTIL_EXPORT int nsutil_fft_Create_F32R(nsutil_fft_t *fft, int order, int accuracy);
+NSUTIL_EXPORT int nsutil_fft_Forward_F32R_IP(nsutil_fft_t fft, float *signal);
+NSUTIL_EXPORT int nsutil_fft_Destroy_F32R(nsutil_fft_t *fft);
+
+#ifdef __cplusplus
+}
+#endif