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vicliu
58 lines
3.1 KiB
C
58 lines
3.1 KiB
C
//==========================================================================
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// Name: codec2_math_arm.c
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//
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// Purpose: A wrapper around architecture specific math libraries
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// used on ARM embedded devices to improve Codec2 performance.
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// Created: May 15, 2022
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// Authors: Mooneer Salem
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//
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// License:
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License version 2.1,
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// as published by the Free Software Foundation. This program is
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// distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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// License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with this program; if not, see <http://www.gnu.org/licenses/>.
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//
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//==========================================================================
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#if defined(__EMBEDDED__) && defined(__ARM_ARCH)
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#include "codec2_math.h"
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#include "arm_math.h"
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//==========================================================================
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/// Calculates the dot product of two real-valued float vectors.
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///
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/// @param leftHandSideRealVector A pointer to the first vector to use for the dot product.
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/// @param rightHandSideRealVector A pointer to the second vector to use for the dot product.
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/// @param vectorLength The length of the vector. Both vectors should be at least this long.
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/// @param resultReal A pointer to the variable in which to store the scalar result.
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//==========================================================================
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void codec2_dot_product_f32(float* leftHandSideRealVector, float* rightHandSideRealVector, size_t vectorLength, float* resultReal)
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{
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arm_dot_prod_f32(leftHandSideRealVector, rightHandSideRealVector, vectorLength, resultReal);
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}
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//==========================================================================
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/// Calculates the dot product of two complex-valued float vectors.
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///
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/// @param leftHandSideComplexVector A pointer to the first vector to use for the dot product.
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/// @param rightHandSideComplexVector A pointer to the second vector to use for the dot product.
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/// @param vectorLength The length of the vector. Both vectors should be at least this long.
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/// @param resultReal A pointer to the variable in which to store the real component of the result.
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/// @param resultImag A pointer to the variable in which to store the imaginary component of the result.
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///
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/// @note Each array of floats is organized with even elements being real and odd elements imaginary.
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//==========================================================================
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void codec2_complex_dot_product_f32(COMP* leftHandSideComplexVector, COMP* rightHandSideComplexVector, size_t vectorLength, float* resultReal, float* resultImag)
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{
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arm_cmplx_dot_prod_f32((float*)leftHandSideComplexVector, (float*)rightHandSideComplexVector, vectorLength, resultReal, resultImag);
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}
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#endif // defined(__EMBEDDED__) && defined(__ARM_ARCH)
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