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 INCLUDE FILES 202c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent***********************************************************************************/ 212c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 222c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent#include "Mixer_private.h" 232c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent#include "LVM_Macros.h" 242c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 252c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/********************************************************************************** 262c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent FUNCTION CORE_MIXSOFT_1ST_D32C31_WRA 272c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent***********************************************************************************/ 282c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 292c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurentvoid Core_MixInSoft_D32C31_SAT( Mix_1St_Cll_t *pInstance, 302c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent const LVM_INT32 *src, 312c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent LVM_INT32 *dst, 322c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent LVM_INT16 n) 332c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent{ 342c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent LVM_INT32 Temp1,Temp2,Temp3; 352c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent LVM_INT16 OutLoop; 362c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent LVM_INT16 InLoop; 372c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent LVM_INT32 TargetTimesOneMinAlpha; 382c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent LVM_INT32 CurrentTimesAlpha; 392c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent LVM_INT16 ii,jj; 402c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent LVM_INT16 CurrentShort; 412c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 422c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent InLoop = (LVM_INT16)(n >> 2); /* Process per 4 samples */ 432c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent OutLoop = (LVM_INT16)(n - (InLoop << 2)); 442c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 452c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent MUL32x32INTO32((0x7FFFFFFF-pInstance->Alpha),pInstance->Target,TargetTimesOneMinAlpha,31); /* Q31 * Q0 in Q0 */ 462c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent if (pInstance->Target >= pInstance->Current){ 472c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent TargetTimesOneMinAlpha +=2; /* Ceil*/ 482c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent } 492c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 502c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent if (OutLoop){ 512c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent MUL32x32INTO32(pInstance->Current,pInstance->Alpha,CurrentTimesAlpha,31); /* Q0 * Q31 in Q0 */ 522c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent pInstance->Current = TargetTimesOneMinAlpha + CurrentTimesAlpha; /* Q0 + Q0 into Q0*/ 532c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent CurrentShort = (LVM_INT16)(pInstance->Current>>16); /* From Q31 to Q15*/ 542c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 552c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent for (ii = OutLoop; ii != 0; ii--){ 562c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent Temp1=*src++; 572c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent Temp2=*dst; 582c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent MUL32x16INTO32(Temp1,CurrentShort,Temp3,15) 592c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent Temp1=(Temp2>>1)+(Temp3>>1); 602c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 612c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent if (Temp1 > 0x3FFFFFFF) 622c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent Temp1 = 0x7FFFFFFF; 632c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent else if (Temp1 < - 0x40000000) 642c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent Temp1 = 0x80000000; 652c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent else 662c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent Temp1=(Temp1<<1); 672c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent *dst++ = Temp1; 682c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent } 692c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent } 702c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 712c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent for (ii = InLoop; ii != 0; ii--){ 722c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent MUL32x32INTO32(pInstance->Current,pInstance->Alpha,CurrentTimesAlpha,31); /* Q0 * Q31 in Q0 */ 732c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent pInstance->Current = TargetTimesOneMinAlpha + CurrentTimesAlpha; /* Q0 + Q0 into Q0*/ 742c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent CurrentShort = (LVM_INT16)(pInstance->Current>>16); /* From Q31 to Q15*/ 752c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 762c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent for (jj = 4; jj!=0 ; jj--){ 772c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent Temp1=*src++; 782c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent Temp2=*dst; 792c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent MUL32x16INTO32(Temp1,CurrentShort,Temp3,15) 802c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent Temp1=(Temp2>>1)+(Temp3>>1); 812c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 822c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent if (Temp1 > 0x3FFFFFFF) 832c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent Temp1 = 0x7FFFFFFF; 842c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent else if (Temp1 < - 0x40000000) 852c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent Temp1 = 0x80000000; 862c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent else 872c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent Temp1=(Temp1<<1); 882c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent *dst++ = Temp1; 892c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent } 902c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent } 912c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent} 922c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 932c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 942c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/**********************************************************************************/ 95