12c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* 22c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * Copyright (C) 2004-2010 NXP Software 32c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * Copyright (C) 2010 The Android Open Source Project 42c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * 52c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * Licensed under the Apache License, Version 2.0 (the "License"); 62c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * you may not use this file except in compliance with the License. 72c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * You may obtain a copy of the License at 82c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * 92c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * http://www.apache.org/licenses/LICENSE-2.0 102c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * 112c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * Unless required by applicable law or agreed to in writing, software 122c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * distributed under the License is distributed on an "AS IS" BASIS, 132c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 142c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * See the License for the specific language governing permissions and 152c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * limitations under the License. 162c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent */ 172c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 182c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/****************************************************************************************/ 192c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* */ 202c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* Includes */ 212c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* */ 222c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/****************************************************************************************/ 232c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 242c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent#include "LVEQNB.h" 252c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent#include "LVEQNB_Private.h" 262c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent#include "VectorArithmetic.h" 272c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent#include "BIQUAD.h" 282c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 292c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 302c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/****************************************************************************************/ 312c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* */ 322c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* Defines */ 332c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* */ 342c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/****************************************************************************************/ 352c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 362c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent#define SHIFT 13 372c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 382c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/****************************************************************************************/ 392c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* */ 402c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* FUNCTION: LVEQNB_Process */ 412c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* */ 422c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* DESCRIPTION: */ 432c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* Process function for the N-Band Equaliser module. */ 442c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* */ 452c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* PARAMETERS: */ 462c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* hInstance Instance handle */ 472c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* pInData Pointer to the input data */ 482c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* pOutData Pointer to the output data */ 492c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* NumSamples Number of samples in the input buffer */ 502c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* */ 512c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* RETURNS: */ 522c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* LVEQNB_SUCCESS Succeeded */ 532c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* LVEQNB_NULLADDRESS When hInstance, pInData or pOutData are NULL */ 542c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* LVEQNB_ALIGNMENTERROR When pInData or pOutData are not 32-bit aligned */ 552c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* LVEQNB_TOOMANYSAMPLES NumSamples was larger than the maximum block size */ 562c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* */ 572c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* NOTES: */ 582c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* */ 592c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/****************************************************************************************/ 602c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 612c8e5cab3faa6d360e222b7a6c40a80083d021acEric LaurentLVEQNB_ReturnStatus_en LVEQNB_Process(LVEQNB_Handle_t hInstance, 622c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent const LVM_INT16 *pInData, 632c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent LVM_INT16 *pOutData, 642c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent LVM_UINT16 NumSamples) 652c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent{ 662c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 672c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent LVM_UINT16 i; 682c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent Biquad_Instance_t *pBiquad; 692c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent LVEQNB_Instance_t *pInstance = (LVEQNB_Instance_t *)hInstance; 702c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent LVM_INT32 *pScratch; 712c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 722c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 732c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent /* Check for NULL pointers */ 742c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent if((hInstance == LVM_NULL) || (pInData == LVM_NULL) || (pOutData == LVM_NULL)) 752c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent { 762c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent return LVEQNB_NULLADDRESS; 772c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent } 782c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 792c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent /* Check if the input and output data buffers are 32-bit aligned */ 80b302bd5d288be2d3363b80053ca2392560b00b25Ashok Bhat if ((((uintptr_t)pInData % 4) != 0) || (((uintptr_t)pOutData % 4) != 0)) 812c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent { 822c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent return LVEQNB_ALIGNMENTERROR; 832c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent } 842c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 852c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent pScratch = (LVM_INT32 *)pInstance->pFastTemporary; 862c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 872c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent /* 882c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * Check the number of samples is not too large 892c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent */ 902c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent if (NumSamples > pInstance->Capabilities.MaxBlockSize) 912c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent { 922c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent return(LVEQNB_TOOMANYSAMPLES); 932c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent } 942c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 952c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent if (pInstance->Params.OperatingMode == LVEQNB_ON) 962c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent { 972c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent /* 982c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * Convert from 16-bit to 32-bit 992c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent */ 1002c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent Int16LShiftToInt32_16x32((LVM_INT16 *)pInData, /* Source */ 1012c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent pScratch, /* Destination */ 1022c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent (LVM_INT16)(2*NumSamples), /* Left and Right */ 1032c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent SHIFT); /* Scaling shift */ 1042c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 1052c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent /* 1062c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * For each section execte the filter unless the gain is 0dB 1072c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent */ 1082c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent if (pInstance->NBands != 0) 1092c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent { 1102c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent for (i=0; i<pInstance->NBands; i++) 1112c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent { 1122c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent /* 1132c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * Check if band is non-zero dB gain 1142c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent */ 1152c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent if (pInstance->pBandDefinitions[i].Gain != 0) 1162c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent { 1172c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent /* 1182c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * Get the address of the biquad instance 1192c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent */ 1202c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent pBiquad = &pInstance->pEQNB_FilterState[i]; 1212c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 1222c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 1232c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent /* 1242c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * Select single or double precision as required 1252c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent */ 1262c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent switch (pInstance->pBiquadType[i]) 1272c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent { 1282c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent case LVEQNB_SinglePrecision: 1292c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent { 1302c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent PK_2I_D32F32C14G11_TRC_WRA_01(pBiquad, 1312c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent (LVM_INT32 *)pScratch, 1322c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent (LVM_INT32 *)pScratch, 1332c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent (LVM_INT16)NumSamples); 1342c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent break; 1352c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent } 1362c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 1372c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent case LVEQNB_DoublePrecision: 1382c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent { 1392c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent PK_2I_D32F32C30G11_TRC_WRA_01(pBiquad, 1402c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent (LVM_INT32 *)pScratch, 1412c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent (LVM_INT32 *)pScratch, 1422c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent (LVM_INT16)NumSamples); 1432c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent break; 1442c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent } 1452c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent default: 1462c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent break; 1472c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent } 1482c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent } 1492c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent } 1502c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent } 1512c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 1522c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 1532c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent if(pInstance->bInOperatingModeTransition == LVM_TRUE){ 1542c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent /* 1552c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * Convert from 32-bit to 16- bit and saturate 1562c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent */ 1572c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent Int32RShiftToInt16_Sat_32x16(pScratch, /* Source */ 1582c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent (LVM_INT16 *)pScratch, /* Destination */ 1592c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent (LVM_INT16)(2*NumSamples), /* Left and Right */ 1602c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent SHIFT); /* Scaling shift */ 1612c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 1622c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent LVC_MixSoft_2St_D16C31_SAT(&pInstance->BypassMixer, 1632c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent (LVM_INT16 *)pScratch, 1642c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent (LVM_INT16 *)pInData, 1652c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent (LVM_INT16 *)pScratch, 1662c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent (LVM_INT16)(2*NumSamples)); 1672c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 1682c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent Copy_16((LVM_INT16*)pScratch, /* Source */ 1692c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent pOutData, /* Destination */ 1702c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent (LVM_INT16)(2*NumSamples)); /* Left and Right samples */ 1712c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent } 1722c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent else{ 1732c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 1742c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent /* 1752c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * Convert from 32-bit to 16- bit and saturate 1762c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent */ 1772c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent Int32RShiftToInt16_Sat_32x16(pScratch, /* Source */ 1782c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent pOutData, /* Destination */ 1792c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent (LVM_INT16 )(2*NumSamples), /* Left and Right */ 1802c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent SHIFT); /* Scaling shift */ 1812c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent } 1822c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent } 1832c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent else 1842c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent { 1852c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent /* 1862c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * Mode is OFF so copy the data if necessary 1872c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent */ 1882c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent if (pInData != pOutData) 1892c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent { 1902c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent Copy_16(pInData, /* Source */ 1912c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent pOutData, /* Destination */ 1922c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent (LVM_INT16)(2*NumSamples)); /* Left and Right samples */ 1932c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent } 1942c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent } 1952c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 1962c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 1972c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 1982c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent return(LVEQNB_SUCCESS); 1992c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 2002c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent} 201