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/*
* Copyright (C) 2020 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2020 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-dsp-lib
* Created on: 31 мар. 2020 г.
*
* lsp-dsp-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* lsp-dsp-lib 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with lsp-dsp-lib. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef LSP_PLUG_IN_DSP_COMMON_PCOMPLEX_H_
#define LSP_PLUG_IN_DSP_COMMON_PCOMPLEX_H_
#include <lsp-plug.in/dsp/common/types.h>
/** Calculate packed complex multiplication: dst = src1 * src2
*
* @param dst destination to store complex numbers
* @param src1 source 1
* @param src2 source 2
* @param count number of multiplications
*/
LSP_DSP_LIB_SYMBOL(void, pcomplex_mul3, float *dst, const float *src1, const float *src2, size_t count);
/** Calculate packed complex multiplication: dst = dst * src
*
* @param dst destination and source to store complex numbers
* @param src source
* @param count number of multiplications
*/
LSP_DSP_LIB_SYMBOL(void, pcomplex_mul2, float *dst, const float *src, size_t count);
/**
* Divide complex numbers:
* dst = dst / src
*
* @param dst destination, source top
* @param src bottom
* @param count number of divisions
*/
LSP_DSP_LIB_SYMBOL(void, pcomplex_div2, float *dst, const float *src, size_t count);
/**
* Divide complex numbers:
* dst = src / dst
*
* @param dst destination, source bottom
* @param src top
* @param count number of divisions
*/
LSP_DSP_LIB_SYMBOL(void, pcomplex_rdiv2, float *dst, const float *src, size_t count);
/**
* Divide complex numbers:
* dst = t / b
*
* @param dst destination
* @param t top
* @param b bottom
* @param count number of divisions
*/
LSP_DSP_LIB_SYMBOL(void, pcomplex_div3, float *dst, const float *t, const float *b, size_t count);
/** Calculate packed complex reciprocal:
* dst[i].{re,im} = 1 / (dst[i].re + j * dst[i].im)
*
* @param dst source, destination to store complex numbers
* @param count number of multiplications
*/
LSP_DSP_LIB_SYMBOL(void, pcomplex_rcp1, float *dst, size_t count);
/** Calculate packed complex reciprocal:
* dst[i].{re,im} = 1 / (src[i].re + j * src[i].im)
*
* @param dst destination to store complex numbers
* @param src source
* @param count number of multiplications
*/
LSP_DSP_LIB_SYMBOL(void, pcomplex_rcp2, float *dst, const float *src, size_t count);
/** Fill output array with same complex numbers
*
* @param dst target array to fill
* @param re real part of complex number
* @param im imaginary part of complex number
* @param count number of elements to fill
*/
LSP_DSP_LIB_SYMBOL(void, pcomplex_fill_ri, float *dst, float re, float im, size_t count);
/** Convert real to packed complex:
* dst[i].re = src[i]
* dst[i].im = 0
*
* @param dst destination packed complex data
* @param src source real data
* @param count number of items to convert
*/
LSP_DSP_LIB_SYMBOL(void, pcomplex_r2c, float *dst, const float *src, size_t count);
/** Convert packed complex to real:
* dst[i] = src[i].re
*
* @param dst destination real data
* @param src source packed complex data
* @param count number of items to convert
*/
LSP_DSP_LIB_SYMBOL(void, pcomplex_c2r, float *dst, const float *src, size_t count);
/** Convert packed complex to real and add to destination buffer
*
* @param dst destination real data
* @param src source packed complex data
* @param count number of items to convert
*/
LSP_DSP_LIB_SYMBOL(void, pcomplex_add_r, float *dst, const float *src, size_t count);
/** Get module for complex numbers: mod = sqrt(re*re + im*im)
*
* @param dst_mod array to sore module
* @param src packed complex number data
* @param count count number of elements to process
*/
LSP_DSP_LIB_SYMBOL(void, pcomplex_mod, float *dst_mod, const float *src, size_t count);
/** Convert packed complex number to polar form
*
* @param mod module of the complex number
* @param arg argument of the complex number in range of [-PI, +PI]
* @param src packed complex number data
* @param count number of elements to process
*/
LSP_DSP_LIB_SYMBOL(void, pcomplex_modarg, float *mod, float *arg, const float *src, size_t count);
/** Get argument for complex numbers in range of [-PI; +PI]
*
* @param dst array to sore argument
* @param src packed complex number data
* @param count count number of elements to process
*/
LSP_DSP_LIB_SYMBOL(void, pcomplex_arg, float *dst, const float *src, size_t count);
/**
* Calculate: dst[i] = dst[i] + src[i].re
* @param dst destination real number array
* @param src source packed complex number array
* @param count number of elements
*/
LSP_DSP_LIB_SYMBOL(void, pcomplex_c2r_add2, float *dst, const float *src, size_t count);
/**
* Calculate: dst[i] = dst[i] - src[i].re
* @param dst destination real number array
* @param src source packed complex number array
* @param count number of elements
*/
LSP_DSP_LIB_SYMBOL(void, pcomplex_c2r_sub2, float *dst, const float *src, size_t count);
/**
* Calculate: dst[i] = src[i].re - dst[i]
* @param dst destination real number array
* @param src source packed complex number array
* @param count number of elements
*/
LSP_DSP_LIB_SYMBOL(void, pcomplex_c2r_rsub2, float *dst, const float *src, size_t count);
/**
* Calculate: dst[i] = dst[i] * src[i].re
* @param dst destination real number array
* @param src source packed complex number array
* @param count number of elements
*/
LSP_DSP_LIB_SYMBOL(void, pcomplex_c2r_mul2, float *dst, const float *src, size_t count);
/**
* Calculate: dst[i] = dst[i] / src[i].re
* @param dst destination real number array
* @param src source packed complex number array
* @param count number of elements
*/
LSP_DSP_LIB_SYMBOL(void, pcomplex_c2r_div2, float *dst, const float *src, size_t count);
/**
* Calculate: dst[i] = src[i].re / dst[i]
* @param dst destination real number array
* @param src source packed complex number array
* @param count number of elements
*/
LSP_DSP_LIB_SYMBOL(void, pcomplex_c2r_rdiv2, float *dst, const float *src, size_t count);
#endif /* LSP_PLUG_IN_DSP_COMMON_PCOMPLEX_H_ */
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