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 "VectorArithmetic.h" 242c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 252c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/********************************************************************************** 262c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent DEFINITIONS 272c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent***********************************************************************************/ 282c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 292c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent#define TRUE 1 302c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent#define FALSE 0 312c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 322c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/********************************************************************************** 332c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent FUNCTION MIXINSOFT_D32C31_SAT 342c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent***********************************************************************************/ 352c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 362c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurentvoid MixInSoft_D32C31_SAT( Mix_1St_Cll_t *pInstance, 372c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent const LVM_INT32 *src, 382c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent LVM_INT32 *dst, 392c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent LVM_INT16 n) 402c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent{ 412c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent char HardMixing = TRUE; 422c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 432c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent if(n<=0) return; 442c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 452c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent /****************************************************************************** 462c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent SOFT MIXING 472c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent *******************************************************************************/ 482c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent if (pInstance->Current != pInstance->Target) 492c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent { 502c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent if(pInstance->Alpha == 0){ 512c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent pInstance->Current = pInstance->Target; 522c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent }else if ((pInstance->Current-pInstance->Target <POINT_ZERO_ONE_DB)&& 532c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent (pInstance->Current-pInstance->Target > -POINT_ZERO_ONE_DB)){ 542c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent pInstance->Current = pInstance->Target; /* Difference is not significant anymore. Make them equal. */ 552c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent }else{ 562c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent /* Soft mixing has to be applied */ 572c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent HardMixing = FALSE; 582c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent Core_MixInSoft_D32C31_SAT( pInstance, src, dst, n); 592c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent } 602c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent } 612c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 622c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent /****************************************************************************** 632c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent HARD MIXING 642c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent *******************************************************************************/ 652c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 662c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent if (HardMixing){ 672c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent if (pInstance->Target != 0){ /* Nothing to do in case Target = 0 */ 682c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent if ((pInstance->Target>>16) == 0x7FFF) 692c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent Add2_Sat_32x32( src, dst, n ); 702c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent else{ 712c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent Core_MixInSoft_D32C31_SAT( pInstance, src, dst, n); 722c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent pInstance->Current = pInstance->Target; /* In case the core function would have changed the Current value */ 732c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent } 742c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent } 752c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent } 762c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 772c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent /****************************************************************************** 782c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent CALL BACK 792c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent *******************************************************************************/ 802c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent /* Call back before the hard mixing, because in this case, hard mixing makes 812c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent use of the core soft mix function which can change the Current value! */ 822c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 832c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent if (pInstance->CallbackSet){ 842c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent if ((pInstance->Current-pInstance->Target <POINT_ZERO_ONE_DB)&& 852c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent (pInstance->Current-pInstance->Target > -POINT_ZERO_ONE_DB)){ 862c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent pInstance->Current = pInstance->Target; /* Difference is not significant anymore. Make them equal. */ 872c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent pInstance->CallbackSet = FALSE; 882c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent if (pInstance->pCallBack != 0){ 892c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent (*pInstance->pCallBack) ( pInstance->pCallbackHandle, pInstance->pGeneralPurpose,pInstance->CallbackParam ); 902c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent } 912c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent } 922c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent } 932c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent} 942c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 952c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/**********************************************************************************/ 96