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DSP_API/SmartSDR_Interface/complex.h

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+/* *****************************************************************************
+ * 	complex.h
+ *
+ *  \date Mar 31, 2012
+ *  \author Bob / N4HY
+ *
+ * *****************************************************************************
+ *
+ *  Copyright (C) 2012-2014 FlexRadio Systems.
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *  GNU General Public License for more details.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ *  Contact Information:
+ *  email: gpl<at>flexradiosystems.com
+ *  Mail:  FlexRadio Systems, Suite 1-150, 4616 W. Howard LN, Austin, TX 78728
+ *
+ * ************************************************************************** */
+
+#ifndef COMPLEX_H_
+#define COMPLEX_H_
+
+#include <math.h>
+
+#include "datatypes.h"
+
+typedef struct _complex {
+  float real; // left
+  float imag; // right
+} Complex;
+
+#define CReal(x) ((x.real))
+#define CImag(x) ((x.imag))
+
+extern Complex Cplx(float x, float y);
+
+extern Complex ComplexAdd(Complex x, Complex y);
+
+extern Complex ComplexSub(Complex x, Complex y);
+
+extern Complex ComplexMul(Complex x, Complex y);
+
+extern Complex ComplexDiv(Complex x, Complex y);
+
+extern Complex ComplexScl(Complex x, float scl);
+
+extern Complex ComplexCjg(Complex x);
+
+extern float ComplexPwr(Complex x);
+
+extern float ComplexMag(Complex x);
+
+#endif /* COMPLEX_H_ */