/github/workspace/src/TransformFunctions/plp_dwt_q32.c

Functions

	Name
void	plp_dwt_q32(const int32_t restrict pSrc, uint32_t length, const plp_dwt_wavelet_q32 wavelet, plp_dwt_extension_mode mode, int32_t restrict pDstA, int32_t *restrict pDstD) 32bit Fixed-point DWT on real input data for XPULPV2 extension.

Functions Documentation

function plp_dwt_q32

void plp_dwt_q32(
    const int32_t *__restrict__ pSrc,
    uint32_t length,
    const plp_dwt_wavelet_q32 wavelet,
    plp_dwt_extension_mode mode,
    int32_t *__restrict__ pDstA,
    int32_t *__restrict__ pDstD
)

32bit Fixed-point DWT on real input data for XPULPV2 extension.

Parameters:

• pSrc points to the input buffer (q32)
• length length of input buffer
• wavelet wavelet structure for calculating DWT
• mode boundary extension mode
• pDstA points to ouput buffer with Approximate coefficients
• pDstD points to ouput buffer with Detailed coefficients

Return: none

32bit Fixed-point DWT for XPULPV2 extension.

Source code

/* ----------------------------------------------------------------------
 * Project:      PULP DSP Library
 * Title:        plp_dwt_q32.c
 * Description:  32bit Fixed-point Discret Wavelet Transform
 *
 * $Date:        10. Juli 2021
 * $Revision:    V1
 *
 * Target Processor: PULP cores
 * -------------------------------------------------------------------- */
/*
 * Copyright (C) 2021 ETH Zurich and University of Bologna. All rights reserved.
 *
 * Author: Jakub Mandula, ETH Zurich
 *
 * 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.
 */

#include "plp_math.h"


#include "plp_dwt_common.h"


void plp_dwt_q32(const int32_t *__restrict__ pSrc,
                 uint32_t length,
                 const plp_dwt_wavelet_q32 wavelet,
                 plp_dwt_extension_mode mode,
                 int32_t *__restrict__ pDstA,
                 int32_t *__restrict__ pDstD) {

   if((mode == PLP_DWT_MODE_ANTIREFLECT || mode == PLP_DWT_MODE_REFLECT) && length <= 1){
      printf("F Cannot run [anti]reflect mode on length 1 signal.\n");
      return;
   }


   int32_t *dec_hi_l1;
   int32_t *dec_lo_l1;
   plp_dwt_wavelet_q32 temp_wavelet;




   if (hal_cluster_id() == ARCHI_FC_CID) {
      switch(wavelet.type) {
      case PLP_DWT_WAVELET_HAAR:
      case PLP_DWT_WAVELET_DB1:
         plp_dwt_haar_q32s_rv32im(pSrc, length, mode, pDstA, pDstD);
         break;
      default:

         // dec_hi_l1 = hal_fc_l1_malloc(sizeof(int32_t) * (wavelet.length));
         // dec_lo_l1 = hal_fc_l1_malloc(sizeof(int32_t) * (wavelet.length));

         // copy_coefs_q32(dec_hi_l1, dec_lo_l1, wavelet);
         // temp_wavelet = (plp_dwt_wavelet_q32){
         //    .length = wavelet.length,
         //    .type = wavelet.type,
         //    .dec_hi = dec_hi_l1,
         //    .dec_lo = dec_lo_l1
         // };


         // copy_coefs_q32(dec_hi_l1, dec_lo_l1, wavelet);
         plp_dwt_q32s_rv32im(pSrc, length, wavelet, mode, pDstA, pDstD);
         //plp_dwt_q32s_rv32im(pSrc, length, temp_wavelet, mode, pDstA, pDstD);
         // hal_fc_l1_free(dec_hi_l1, sizeof(int32_t) * (wavelet.length) );
         // hal_fc_l1_free(dec_lo_l1, sizeof(int32_t) * (wavelet.length) );
         break;
      }
   }else {
      switch(wavelet.type) {
      case PLP_DWT_WAVELET_HAAR:
      case PLP_DWT_WAVELET_DB1:
         plp_dwt_haar_q32s_xpulpv2(pSrc, length, mode, pDstA, pDstD);
         break;
      default:

         dec_hi_l1 = hal_cl_l1_malloc(sizeof(int32_t) * (wavelet.length));
         dec_lo_l1 = hal_cl_l1_malloc(sizeof(int32_t) * (wavelet.length));

         copy_coefs_q32(dec_hi_l1, dec_lo_l1, wavelet);
         temp_wavelet = (plp_dwt_wavelet_q32){
            .length = wavelet.length,
            .type = wavelet.type,
            .dec_hi = dec_hi_l1,
            .dec_lo = dec_lo_l1
         };


         plp_dwt_q32s_xpulpv2(pSrc, length, temp_wavelet, mode, pDstA, pDstD);

         hal_cl_l1_free(dec_hi_l1, sizeof(int32_t) * (wavelet.length) );
         hal_cl_l1_free(dec_lo_l1, sizeof(int32_t) * (wavelet.length) );
         break;
      }
   }


}

---

Updated on 2023-03-01 at 16:16:33 +0000