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-/* ****************************************************************************
- * ensigdsp.h -- Ensigma DSP library.
- * Copyright (C) 2017 Thomas "Cakeisalie5" Touhey <thomas@touhey.fr>
- *
- * This file is part of the 'all/ensigdsp-sh' module in libcarrot, an
- * experimental modular libc project.
- *
- * This file is governed by the CeCILL-C license under French law and abiding
- * by the rules of distribution of free software. You can use, modify and or
- * redistribute it under the terms of the CeCILL-C license as circulated by
- * CEA, CNRS and INRIA at the following URL: http://www.cecill.info
- *
- * As a counterpart to the access to the source code and rights to copy, modify
- * and redistribute granted by the license, users are provided only with a
- * limited warranty and the software's author, the holder of the economic
- * rights, and the successive licensors have only limited liability.
- *
- * In this respect, the user's attention is drawn to the risks associated with
- * loading, using, modifying and/or developing and reproducing the software by
- * the user in light of its specific status of free software, that may mean
- * that it is complicated to manipulate, and that also therefore means that it
- * is reserved for developers and experienced professionals having in-depth
- * computer knowledge. Users are therefore encouraged to load and test the
- * software's suitability as regards their requirements in conditions enabling
- * the security of their systems and/or data to be ensured and, more generally,
- * to use and operate it in the same conditions as regards security.
- *
- * The fact that you are presently reading this means you have had knowledge of
- * the CeCILL-C license and that you accept its terms.
- * ************************************************************************* */
-#include <fixed.h>
-__BEGIN_DECLS
-#ifdef _DSPC
-
-/* ************************************************************************* */
-/* Useful things */
-/* ************************************************************************* */
-/* Macros */
-# define BIQUAD_SIZE 6 /* no. coefficients in an IIR biquad */
-# define EDSP_OK 0
-# define EDSP_BAD_ARG 1
-# define EDSP_NO_HEAP 2
-# define EFFTALLSCALE (-1L)
-# define EFFTMIDSCALE 0x55555555L
-# define EFFTNOSCALE 0x00000000L
-
-/* Globals
- * These variables are for the internal use of the FFT functions only.
- * They should not be accessed by user programs. */
-
-extern long max_fft_size;
-extern short *twtble;
-/* ************************************************************************* */
-/* Fourier transforms */
-/* ************************************************************************* */
-/* Complex */
-extern int FftComplex _OF((__X __fixed __op_x[], __Y __fixed __op_y[],
- const __X __fixed __ip_x[], const __Y __fixed __ip_y[],
- long __size, long __scale)) __THROW;
-extern int FftInComplex _OF((__X __fixed __data_x[], __Y __fixed __data_y[],
- long __size, long __scale)) __THROW;
-
-/* Real */
-extern int FftReal _OF((__X __fixed __op_x[], __Y __fixed __op_y[],
- const __fixed __ip[],
- long __size, long __scale)) __THROW;
-extern int FftInReal _OF((__X __fixed __data_x[], __Y __fixed __data_y[],
- long __size, long __scale, int __ip_all_x)) __THROW;
-
-/* Complex bis? */
-extern int IfftComplex _OF((__X __fixed __op_x[], __Y __fixed __op_y[],
- const __X __fixed __ip_x[], const __Y __fixed __ip_y[],
- long __size, long __scale)) __THROW;
-extern int IfftInComplex _OF((__X __fixed __data_x[], __Y __fixed __data_y[],
- long __size, long __scale)) __THROW;
-
-/* Real bis? */
-extern int IfftReal _OF((__X __fixed __op_x[], __Y __fixed __op_y[],
- __X __fixed __ip_x[], __Y __fixed __ip_y[],
- long __size, long __scale, int __op_all_x)) __THROW;
-extern int IfftInReal _OF((__X __fixed __data_x[], __Y __fixed __data_y[],
- long __size, long __scale, int __op_all_x)) __THROW;
-
-/* Initialize/deinitialize Fourier transformation? */
-extern int InitFft _OF((long __max_size)) __THROW;
-extern void FreeFft _OF((void)) __THROW;
-
-/* ?? */
-extern int LogMagnitude _OF((__fixed __output[],
- __X __fixed __ip_x[], __Y __fixed __ip_y[],
- long __no_elements, float __fscale)) __THROW;
-/* ************************************************************************* */
-/* Window functions */
-/* ************************************************************************* */
-extern int GenBlackman _OF((__fixed __output[], long __win_size)) __THROW;
-extern int GenHamming _OF((__fixed __output[], long __win_size)) __THROW;
-extern int GenHanning _OF((__fixed __output[], long __win_size)) __THROW;
-extern int GenTriangle _OF((__fixed __output[], long __win_size)) __THROW;
-
-/* ************************************************************************* */
-/* Filters */
-/* ************************************************************************* */
-/* The coefficients must be supplied in X and the workspace in Y.
- * If it is straightforward we can support the opposite, i.e. Xworkspace
- * and Ycoeff. */
-
-extern int InitFir _OF((__Y __fixed **__workspace, long __no_coeffs)) __THROW;
-extern int FreeFir _OF((__Y __fixed **__workspace, long __no_coeffs)) __THROW;
-
-extern int InitIir _OF((__Y __fixed **__workspace, long __no_sections))
- __THROW;
-extern int FreeIir _OF((__Y __fixed **__workspace, long __no_sections))
- __THROW;
-
-extern int InitDIir _OF((__Y long __fixed **__workspace, long __no_sections))
- __THROW;
-extern int FreeDIir _OF((__Y long __fixed **__workspace, long __no_sections))
- __THROW;
-
-extern int InitLms _OF((__Y __fixed **__workspace, long __no_coeffs)) __THROW;
-extern int FreeLms _OF((__Y __fixed **__workspace, long __no_coeffs)) __THROW;
-
-extern int Fir _OF((__fixed __output[], const __fixed __input[],
- long __no_samples,
- const __X __fixed __coeff[], long __no_coeffs, int __res_shift,
- __Y __fixed *__workspace)) __THROW;
-extern int Fir1 _OF((short *__output, short __input,
- const short __coeff[], /* X memory */
- long __no_coeffs, int __res_shift,
- short *__workspace /* Y memory */
- )) __THROW;
-
-extern int Iir _OF((__fixed __output[], const __fixed __input[],
- long __no_samples, const __X __fixed __coeff[], long __no_sections,
- __Y __fixed *__workspace)) __THROW;
-extern int Iir1 _OF((short *__output, short __input,
- const short __coeff[], /* X memory */
- long __no_sections, short *__workspace /* Y memory */
- )) __THROW;
-
-extern int DIir _OF((__fixed __output[], const __fixed __input[],
- long __no_samples,
- const __X long __fixed __coeff[], long __no_sections,
- __Y long __fixed *__workspace)) __THROW;
-extern int DIir1 _OF((short *__output, const short __input,
- const long __coeff[], /* X memory */
- long __no_sections,
- long *__workspace /* Y memory */
- )) __THROW;
-
-extern int Lms _OF((__fixed __output[], const __fixed __input[],
- const __fixed __ref_output[], long __no_samples,
- __X __fixed __coeff[], long __no_coeffs, int __res_shift,
- short __conv_fact, __Y __fixed *__workspace)) __THROW;
-extern int Lms1 _OF((short *__output, short __input, short __ref_output,
- short __coeff[], /* X memory */
- long __no_coeffs, int __res_shift,
- short __conv_fact,
- short *__workspace /* Y memory */
- )) __THROW;
-/* ************************************************************************* */
-/* Convolution and Correlation */
-/* ************************************************************************* */
-extern int ConvComplete _OF((__fixed __output[],
- __X __fixed __ip_x[], __Y __fixed __ip_y[],
- long __x_size, long __y_size, int __res_shift)) __THROW;
-extern int ConvCyclic _OF((__fixed __output[],
- __X __fixed __ip_x[], __Y __fixed __ip_y[],
- long __size, int __res_shift)) __THROW;
-extern int ConvPartial _OF((__fixed __output[],
- const __X __fixed __ip_x[], const __Y __fixed __ip_y[],
- long __x_size, long __y_size, int __res_shift)) __THROW;
-extern int Correlate _OF((__fixed __output[],
- const __X __fixed __ip_x[], const __Y __fixed __ip_y[],
- long __x_size, long __y_size, long __no_corr,
- int __x_is_larger, int __res_shift)) __THROW;
-extern int CorrCyclic _OF((__fixed __output[],
- const __X __fixed __ip_x[], const __Y __fixed __ip_y[],
- long __size, int __reverse, int __res_shift)) __THROW;
-/* ************************************************************************* */
-/* Miscallaneous */
-/* ************************************************************************* */
-/* Noise? */
-extern int GenGWnoise _OF((__fixed __output[], long __no_samples,
- float __variance)) __THROW;
-
-/* Statistical things */
-extern int MinI _OF((__fixed **__min_ptr, __fixed __input[],
- long __no_elements, int __src_is_x)) __THROW;
-extern int MaxI _OF((__fixed **__max_ptr, __fixed __input[],
- long __no_elements, int __src_is_x)) __THROW;
-extern int PeakI _OF((__fixed **__peak_ptr, __fixed __input[],
- long __no_elements, int __src_is_x)) __THROW;
-extern int Mean _OF((__fixed *__mean, const __fixed __input[],
- long __no_elements, int __src_is_x)) __THROW;
-extern int Variance OF((long __fixed *__variance, __fixed *__mean,
- const __fixed __input[], long __no_elements, int __src_is_x)) __THROW;
-
-/* Vector/matrix operations */
-extern int VectorMult _OF((__fixed __output[],
- const __X __fixed __ip_x[], const __Y __fixed __ip_y[],
- long __no_elements, int __res_shift)) __THROW;
-extern int MatrixMult _OF((void *__op_matrix,
- const __X void *__ip_x, const __Y void *__ip_y,
- long __m, long __n, long __p, int __x_first, int __res_shift)) __THROW;
-
-/* Power? */
-extern int MsPower _OF((long __fixed *__output, const __fixed __input[],
- long __no_elements, int __src_is_x)) __THROW;
-
-/* Limit */
-extern int Limit _OF((__fixed __data_xy[], long __no_elements,
- int __data_is_x)) __THROW;
-
-/* Copies */
-extern int CopyXtoY _OF((__Y __fixed __op_y[], const __X __fixed __ip_x[],
- long __n)) __THROW;
-extern int CopyYtoX _OF((__X __fixed __op_x[], const __Y __fixed __ip_y[],
- long __n));
-
-extern int CopyToX _OF((__X __fixed __op_x[], const __fixed __input[],
- long __n)) __THROW;
-extern int CopyToY _OF((__Y __fixed __op_y[], const __fixed __input[],
- long __n)) __THROW;
-
-extern int CopyFromX _OF((__fixed __output[], const __X __fixed __ip_x[],
- long __n)) __THROW;
-extern int CopyFromY _OF((__fixed __output[], const __Y __fixed __ip_y[],
- long __n)) __THROW;
-
-#endif
-__END_DECLS