| /* ---------------------------------------------------------------------- | |
| * Project: CMSIS DSP Library | |
| * Title: arm_logsumexp_f32.c | |
| * Description: LogSumExp | |
| * | |
| * $Date: 23 April 2021 | |
| * $Revision: V1.9.0 | |
| * | |
| * Target Processor: Cortex-M and Cortex-A cores | |
| * -------------------------------------------------------------------- */ | |
| /* | |
| * Copyright (C) 2010-2021 ARM Limited or its affiliates. All rights reserved. | |
| * | |
| * SPDX-License-Identifier: Apache-2.0 | |
| * | |
| * Licensed under the Apache License, Version 2.0 (the License); you may | |
| * not use this file except in compliance with the License. | |
| * You may obtain a copy of the License at | |
| * | |
| * www.apache.org/licenses/LICENSE-2.0 | |
| * | |
| * Unless required by applicable law or agreed to in writing, software | |
| * distributed under the License is distributed on an AS IS BASIS, WITHOUT | |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| * See the License for the specific language governing permissions and | |
| * limitations under the License. | |
| */ | |
| /** | |
| * @addtogroup LogSumExp | |
| * @{ | |
| */ | |
| /** | |
| * @brief Dot product with log arithmetic | |
| * | |
| * Vectors are containing the log of the samples | |
| * | |
| * @param[in] *pSrcA points to the first input vector | |
| * @param[in] *pSrcB points to the second input vector | |
| * @param[in] blockSize number of samples in each vector | |
| * @param[in] *pTmpBuffer temporary buffer of length blockSize | |
| * @return The log of the dot product. | |
| * | |
| */ | |
| float32_t arm_logsumexp_dot_prod_f32(const float32_t * pSrcA, | |
| const float32_t * pSrcB, | |
| uint32_t blockSize, | |
| float32_t *pTmpBuffer) | |
| { | |
| float32_t result; | |
| arm_add_f32((float32_t*)pSrcA, (float32_t*)pSrcB, pTmpBuffer, blockSize); | |
| result = arm_logsumexp_f32(pTmpBuffer, blockSize); | |
| return(result); | |
| } | |
| /** | |
| * @} end of LogSumExp group | |
| */ | |