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authorAbhinav Dronamraju2017-09-29 22:00:40 +0530
committerAbhinav Dronamraju2017-09-29 22:00:40 +0530
commit9bc7ad78e8d7d7acc4b9387aa592542832e80b31 (patch)
tree7fce060665a91de5e5adb12d02003351c3d1fdfc /thirdparty/includes/GSL/gsl/gsl_fft_complex_float.h
parent33755eb085a3ca8154cf83773b23fbb8aac4ba3e (diff)
parentac0045f12ad3d0938758e9742f4107a334e1afaa (diff)
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NEW FEATURES AND NEW FUNCTIONS
Diffstat (limited to 'thirdparty/includes/GSL/gsl/gsl_fft_complex_float.h')
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1 files changed, 139 insertions, 0 deletions
diff --git a/thirdparty/includes/GSL/gsl/gsl_fft_complex_float.h b/thirdparty/includes/GSL/gsl/gsl_fft_complex_float.h
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+/* fft/gsl_fft_complex_float.h
+ *
+ * Copyright (C) 1996, 1997, 1998, 1999, 2000, 2007 Brian Gough
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __GSL_FFT_COMPLEX_FLOAT_H__
+#define __GSL_FFT_COMPLEX_FLOAT_H__
+
+#include <stddef.h>
+
+#include <gsl/gsl_math.h>
+#include <gsl/gsl_complex.h>
+#include <gsl/gsl_fft.h>
+
+#undef __BEGIN_DECLS
+#undef __END_DECLS
+#ifdef __cplusplus
+# define __BEGIN_DECLS extern "C" {
+# define __END_DECLS }
+#else
+# define __BEGIN_DECLS /* empty */
+# define __END_DECLS /* empty */
+#endif
+
+__BEGIN_DECLS
+
+/* Power of 2 routines */
+
+
+int gsl_fft_complex_float_radix2_forward (gsl_complex_packed_array_float data,
+ const size_t stride,
+ const size_t n);
+
+int gsl_fft_complex_float_radix2_backward (gsl_complex_packed_array_float data,
+ const size_t stride,
+ const size_t n);
+
+int gsl_fft_complex_float_radix2_inverse (gsl_complex_packed_array_float data,
+ const size_t stride,
+ const size_t n);
+
+int gsl_fft_complex_float_radix2_transform (gsl_complex_packed_array_float data,
+ const size_t stride,
+ const size_t n,
+ const gsl_fft_direction sign);
+
+int gsl_fft_complex_float_radix2_dif_forward (gsl_complex_packed_array_float data,
+ const size_t stride,
+ const size_t n);
+
+int gsl_fft_complex_float_radix2_dif_backward (gsl_complex_packed_array_float data,
+ const size_t stride,
+ const size_t n);
+
+int gsl_fft_complex_float_radix2_dif_inverse (gsl_complex_packed_array_float data,
+ const size_t stride,
+ const size_t n);
+
+int gsl_fft_complex_float_radix2_dif_transform (gsl_complex_packed_array_float data,
+ const size_t stride,
+ const size_t n,
+ const gsl_fft_direction sign);
+
+/* Mixed Radix general-N routines */
+
+typedef struct
+ {
+ size_t n;
+ size_t nf;
+ size_t factor[64];
+ gsl_complex_float *twiddle[64];
+ gsl_complex_float *trig;
+ }
+gsl_fft_complex_wavetable_float;
+
+typedef struct
+{
+ size_t n;
+ float *scratch;
+}
+gsl_fft_complex_workspace_float;
+
+
+gsl_fft_complex_wavetable_float *gsl_fft_complex_wavetable_float_alloc (size_t n);
+
+void gsl_fft_complex_wavetable_float_free (gsl_fft_complex_wavetable_float * wavetable);
+
+gsl_fft_complex_workspace_float *gsl_fft_complex_workspace_float_alloc (size_t n);
+
+void gsl_fft_complex_workspace_float_free (gsl_fft_complex_workspace_float * workspace);
+
+
+int gsl_fft_complex_float_memcpy (gsl_fft_complex_wavetable_float * dest,
+ gsl_fft_complex_wavetable_float * src);
+
+
+int gsl_fft_complex_float_forward (gsl_complex_packed_array_float data,
+ const size_t stride,
+ const size_t n,
+ const gsl_fft_complex_wavetable_float * wavetable,
+ gsl_fft_complex_workspace_float * work);
+
+int gsl_fft_complex_float_backward (gsl_complex_packed_array_float data,
+ const size_t stride,
+ const size_t n,
+ const gsl_fft_complex_wavetable_float * wavetable,
+ gsl_fft_complex_workspace_float * work);
+
+int gsl_fft_complex_float_inverse (gsl_complex_packed_array_float data,
+ const size_t stride,
+ const size_t n,
+ const gsl_fft_complex_wavetable_float * wavetable,
+ gsl_fft_complex_workspace_float * work);
+
+int gsl_fft_complex_float_transform (gsl_complex_packed_array_float data,
+ const size_t stride, const size_t n,
+ const gsl_fft_complex_wavetable_float * wavetable,
+ gsl_fft_complex_workspace_float * work,
+ const gsl_fft_direction sign);
+
+__END_DECLS
+
+#endif /* __GSL_FFT_COMPLEX_FLOAT_H__ */
+
+