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      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 "LVC_Mixer_Private.h"
     23 #include "VectorArithmetic.h"
     24 
     25 /**********************************************************************************
     26    FUNCTION LVC_MixSoft_2St_D16C31_SAT.c
     27 ***********************************************************************************/
     28 
     29 void LVC_MixSoft_2St_D16C31_SAT( LVMixer3_2St_st *ptrInstance,
     30                                     const   LVM_INT16       *src1,
     31                                             LVM_INT16       *src2,
     32                                             LVM_INT16       *dst,
     33                                             LVM_INT16       n)
     34 {
     35     Mix_Private_st  *pInstance1=(Mix_Private_st *)(ptrInstance->MixerStream[0].PrivateParams);
     36     Mix_Private_st  *pInstance2=(Mix_Private_st *)(ptrInstance->MixerStream[1].PrivateParams);
     37 
     38     if(n<=0)    return;
     39 
     40     /******************************************************************************
     41        SOFT MIXING
     42     *******************************************************************************/
     43     if ((pInstance1->Current == pInstance1->Target)&&(pInstance1->Current == 0)){
     44         LVC_MixSoft_1St_D16C31_SAT( (LVMixer3_1St_st *)(&ptrInstance->MixerStream[1]), src2, dst, n);
     45     }
     46     else if ((pInstance2->Current == pInstance2->Target)&&(pInstance2->Current == 0)){
     47         LVC_MixSoft_1St_D16C31_SAT( (LVMixer3_1St_st *)(&ptrInstance->MixerStream[0]), src1, dst, n);
     48     }
     49     else if ((pInstance1->Current != pInstance1->Target) || (pInstance2->Current != pInstance2->Target))
     50     {
     51         LVC_MixSoft_1St_D16C31_SAT((LVMixer3_1St_st *)(&ptrInstance->MixerStream[0]), src1, dst, n);
     52         LVC_MixInSoft_D16C31_SAT( (LVMixer3_1St_st *)(&ptrInstance->MixerStream[1]), src2, dst, n);
     53     }
     54     else{
     55         /******************************************************************************
     56            HARD MIXING
     57         *******************************************************************************/
     58         if(pInstance2->Shift!=0)
     59             Shift_Sat_v16xv16 ((LVM_INT16)pInstance2->Shift,src2,src2,n);
     60         if(pInstance1->Shift!=0)
     61         {
     62             Shift_Sat_v16xv16 ((LVM_INT16)pInstance1->Shift,src1,dst,n);
     63             LVC_Core_MixHard_2St_D16C31_SAT( &ptrInstance->MixerStream[0], &ptrInstance->MixerStream[1], dst, src2, dst, n);
     64         }
     65         else
     66             LVC_Core_MixHard_2St_D16C31_SAT( &ptrInstance->MixerStream[0], &ptrInstance->MixerStream[1], src1, src2, dst, n);
     67     }
     68 }
     69 
     70 /**********************************************************************************/
     71