| /* ---------------------------------------------------------------------- |
| * Copyright (C) 2010-2013 ARM Limited. All rights reserved. |
| * |
| * $Date: 17. January 2013 |
| * $Revision: V1.4.0 |
| * |
| * Project: CMSIS DSP Library |
| * |
| * Title: math_helper.h |
| * |
| * Description: Prototypes of all helper functions required. |
| * |
| * Target Processor: Cortex-M4/Cortex-M3 |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * - Neither the name of ARM LIMITED nor the names of its contributors |
| * may be used to endorse or promote products derived from this |
| * software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
| * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| * -------------------------------------------------------------------- */ |
| |
| |
| #include "arm_math.h" |
| |
| #ifndef MATH_HELPER_H |
| #define MATH_HELPER_H |
| |
| float arm_snr_f32(float *pRef, float *pTest, uint32_t buffSize); |
| void arm_float_to_q12_20(float *pIn, q31_t * pOut, uint32_t numSamples); |
| void arm_provide_guard_bits_q15(q15_t *input_buf, uint32_t blockSize, uint32_t guard_bits); |
| void arm_provide_guard_bits_q31(q31_t *input_buf, uint32_t blockSize, uint32_t guard_bits); |
| void arm_float_to_q14(float *pIn, q15_t *pOut, uint32_t numSamples); |
| void arm_float_to_q29(float *pIn, q31_t *pOut, uint32_t numSamples); |
| void arm_float_to_q28(float *pIn, q31_t *pOut, uint32_t numSamples); |
| void arm_float_to_q30(float *pIn, q31_t *pOut, uint32_t numSamples); |
| void arm_clip_f32(float *pIn, uint32_t numSamples); |
| uint32_t arm_calc_guard_bits(uint32_t num_adds); |
| void arm_apply_guard_bits (float32_t * pIn, uint32_t numSamples, uint32_t guard_bits); |
| uint32_t arm_compare_fixed_q15(q15_t *pIn, q15_t * pOut, uint32_t numSamples); |
| uint32_t arm_compare_fixed_q31(q31_t *pIn, q31_t *pOut, uint32_t numSamples); |
| uint32_t arm_calc_2pow(uint32_t guard_bits); |
| #endif |
| |
