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| 2 | mjames | 1 | /* ---------------------------------------------------------------------- |
| 2 | * Copyright (C) 2010 ARM Limited. All rights reserved. |
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| 3 | * |
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| 4 | * $Date: 29. November 2010 |
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| 5 | * $Revision: V1.0.3 |
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| 6 | * |
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| 7 | * Project: CMSIS DSP Library |
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| 8 | * |
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| 9 | * Title: math_helper.h |
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| 10 | * |
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| 11 | * |
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| 12 | * Description: Prototypes of all helper functions required. |
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| 13 | * |
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| 14 | * Target Processor: Cortex-M4/Cortex-M3 |
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| 15 | * |
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| 16 | * Version 1.0.3 2010/11/29 |
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| 17 | * Re-organized the CMSIS folders and updated documentation. |
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| 18 | * |
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| 19 | * Version 1.0.2 2010/11/11 |
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| 20 | * Documentation updated. |
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| 21 | * |
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| 22 | * Version 1.0.1 2010/10/05 |
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| 23 | * Production release and review comments incorporated. |
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| 24 | * |
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| 25 | * Version 1.0.0 2010/09/20 |
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| 26 | * Production release and review comments incorporated. |
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| 27 | * |
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| 28 | * Version 0.0.7 2010/06/10 |
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| 29 | * Misra-C changes done |
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| 30 | * -------------------------------------------------------------------- */ |
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| 31 | |||
| 32 | #ifndef MATH_HELPER_H |
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| 33 | #define MATH_HELPER_H |
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| 34 | |||
| 35 | #include "arm_math.h" |
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| 36 | |||
| 37 | float arm_snr_f32(float *pRef, float *pTest, uint32_t buffSize); |
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| 38 | double arm_snr_f64(double *pRef, double *pTest, uint32_t buffSize); |
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| 39 | void arm_float_to_q12_20(float *pIn, q31_t * pOut, uint32_t numSamples); |
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| 40 | void arm_provide_guard_bits_q15(q15_t *input_buf, uint32_t blockSize, uint32_t guard_bits); |
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| 41 | void arm_provide_guard_bits_q31(q31_t *input_buf, uint32_t blockSize, uint32_t guard_bits); |
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| 42 | void arm_float_to_q14(float *pIn, q15_t *pOut, uint32_t numSamples); |
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| 43 | void arm_float_to_q29(float *pIn, q31_t *pOut, uint32_t numSamples); |
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| 44 | void arm_float_to_q28(float *pIn, q31_t *pOut, uint32_t numSamples); |
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| 45 | void arm_float_to_q30(float *pIn, q31_t *pOut, uint32_t numSamples); |
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| 46 | void arm_clip_f32(float *pIn, uint32_t numSamples); |
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| 47 | uint32_t arm_calc_guard_bits(uint32_t num_adds); |
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| 48 | void arm_apply_guard_bits (float32_t * pIn, uint32_t numSamples, uint32_t guard_bits); |
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| 49 | uint32_t arm_compare_fixed_q15(q15_t *pIn, q15_t * pOut, uint32_t numSamples); |
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| 50 | uint32_t arm_compare_fixed_q31(q31_t *pIn, q31_t *pOut, uint32_t numSamples); |
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| 51 | uint32_t arm_calc_2pow(uint32_t guard_bits); |
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| 52 | #endif |