1 /* 2 * Copyright (C) 2004-2010 NXP Software 3 * Copyright (C) 2010 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 /********************************************************************************** 19 INCLUDE FILES 20 ***********************************************************************************/ 21 22 #include "Mixer_private.h" 23 #include "VectorArithmetic.h" 24 25 /********************************************************************************** 26 DEFINITIONS 27 ***********************************************************************************/ 28 29 #define TRUE 1 30 #define FALSE 0 31 32 33 34 /********************************************************************************** 35 FUNCTION MIXSOFT_1ST_D32C31_WRA 36 ***********************************************************************************/ 37 38 void MixSoft_1St_D32C31_WRA( Mix_1St_Cll_t *pInstance, 39 const LVM_INT32 *src, 40 LVM_INT32 *dst, 41 LVM_INT16 n) 42 { 43 char HardMixing = TRUE; 44 45 if(n<=0) return; 46 47 /****************************************************************************** 48 SOFT MIXING 49 *******************************************************************************/ 50 if (pInstance->Current != pInstance->Target) 51 { 52 if(pInstance->Alpha == 0){ 53 pInstance->Current = pInstance->Target; 54 }else if ((pInstance->Current-pInstance->Target <POINT_ZERO_ONE_DB)&& 55 (pInstance->Current-pInstance->Target > -POINT_ZERO_ONE_DB)){ 56 pInstance->Current = pInstance->Target; /* Difference is not significant anymore. Make them equal. */ 57 }else{ 58 /* Soft mixing has to be applied */ 59 HardMixing = FALSE; 60 Core_MixSoft_1St_D32C31_WRA( pInstance, src, dst, n); 61 } 62 } 63 64 /****************************************************************************** 65 HARD MIXING 66 *******************************************************************************/ 67 68 if (HardMixing){ 69 if (pInstance->Target == 0) 70 LoadConst_32(0, dst, n); 71 else if ((pInstance->Target>>16) == 0x7FFF){ 72 if (src != dst) 73 Copy_16((LVM_INT16*)src, (LVM_INT16*)dst, (LVM_INT16)(n * 2)); 74 } 75 else 76 Mult3s_32x16( src, (LVM_INT16)(pInstance->Current>>16), dst, n ); 77 } 78 79 /****************************************************************************** 80 CALL BACK 81 *******************************************************************************/ 82 83 if (pInstance->CallbackSet){ 84 if ((pInstance->Current-pInstance->Target <POINT_ZERO_ONE_DB)&& 85 (pInstance->Current-pInstance->Target > -POINT_ZERO_ONE_DB)){ 86 pInstance->Current = pInstance->Target; /* Difference is not significant anymore. Make them equal. */ 87 pInstance->CallbackSet = FALSE; 88 if (pInstance->pCallBack != 0){ 89 (*pInstance->pCallBack) ( pInstance->pCallbackHandle, pInstance->pGeneralPurpose,pInstance->CallbackParam ); 90 } 91 } 92 } 93 } 94 95 /**********************************************************************************/ 96
