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 FUNCTION MIXINSOFT_D32C31_SAT 34 ***********************************************************************************/ 35 36 void MixInSoft_D32C31_SAT( Mix_1St_Cll_t *pInstance, 37 const LVM_INT32 *src, 38 LVM_INT32 *dst, 39 LVM_INT16 n) 40 { 41 char HardMixing = TRUE; 42 43 if(n<=0) return; 44 45 /****************************************************************************** 46 SOFT MIXING 47 *******************************************************************************/ 48 if (pInstance->Current != pInstance->Target) 49 { 50 if(pInstance->Alpha == 0){ 51 pInstance->Current = pInstance->Target; 52 }else if ((pInstance->Current-pInstance->Target <POINT_ZERO_ONE_DB)&& 53 (pInstance->Current-pInstance->Target > -POINT_ZERO_ONE_DB)){ 54 pInstance->Current = pInstance->Target; /* Difference is not significant anymore. Make them equal. */ 55 }else{ 56 /* Soft mixing has to be applied */ 57 HardMixing = FALSE; 58 Core_MixInSoft_D32C31_SAT( pInstance, src, dst, n); 59 } 60 } 61 62 /****************************************************************************** 63 HARD MIXING 64 *******************************************************************************/ 65 66 if (HardMixing){ 67 if (pInstance->Target != 0){ /* Nothing to do in case Target = 0 */ 68 if ((pInstance->Target>>16) == 0x7FFF) 69 Add2_Sat_32x32( src, dst, n ); 70 else{ 71 Core_MixInSoft_D32C31_SAT( pInstance, src, dst, n); 72 pInstance->Current = pInstance->Target; /* In case the core function would have changed the Current value */ 73 } 74 } 75 } 76 77 /****************************************************************************** 78 CALL BACK 79 *******************************************************************************/ 80 /* Call back before the hard mixing, because in this case, hard mixing makes 81 use of the core soft mix function which can change the Current value! */ 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
