| /* |
| * Copyright (C) 2004-2010 NXP Software |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /********************************************************************************** |
| INCLUDE FILES |
| ***********************************************************************************/ |
| |
| #include "LVC_Mixer_Private.h" |
| #include "VectorArithmetic.h" |
| #include "ScalarArithmetic.h" |
| |
| /********************************************************************************** |
| DEFINITIONS |
| ***********************************************************************************/ |
| |
| #define TRUE 1 |
| #define FALSE 0 |
| |
| /********************************************************************************** |
| FUNCTION LVC_MixSoft_1St_2i_D16C31_SAT |
| ***********************************************************************************/ |
| |
| void LVC_MixSoft_1St_2i_D16C31_SAT( LVMixer3_2St_st *ptrInstance, |
| const LVM_INT16 *src, |
| LVM_INT16 *dst, |
| LVM_INT16 n) |
| { |
| char HardMixing = TRUE; |
| LVM_INT32 TargetGain; |
| Mix_Private_st *pInstance1=(Mix_Private_st *)(ptrInstance->MixerStream[0].PrivateParams); |
| Mix_Private_st *pInstance2=(Mix_Private_st *)(ptrInstance->MixerStream[1].PrivateParams); |
| |
| if(n<=0) return; |
| |
| /****************************************************************************** |
| SOFT MIXING |
| *******************************************************************************/ |
| if ((pInstance1->Current != pInstance1->Target)||(pInstance2->Current != pInstance2->Target)) |
| { |
| if(pInstance1->Delta == 0x7FFFFFFF) |
| { |
| pInstance1->Current = pInstance1->Target; |
| TargetGain=pInstance1->Target>>16; // TargetGain in Q16.15 format, no integer part |
| LVC_Mixer_SetTarget(&(ptrInstance->MixerStream[0]),TargetGain); |
| } |
| else if (Abs_32(pInstance1->Current-pInstance1->Target) < pInstance1->Delta) |
| { |
| pInstance1->Current = pInstance1->Target; /* Difference is not significant anymore. Make them equal. */ |
| TargetGain=pInstance1->Target>>16; // TargetGain in Q16.15 format, no integer part |
| LVC_Mixer_SetTarget(&(ptrInstance->MixerStream[0]),TargetGain); |
| } |
| else |
| { |
| /* Soft mixing has to be applied */ |
| HardMixing = FALSE; |
| } |
| |
| if(HardMixing == TRUE) |
| { |
| if(pInstance2->Delta == 0x7FFFFFFF) |
| { |
| pInstance2->Current = pInstance2->Target; |
| TargetGain=pInstance2->Target>>16; // TargetGain in Q16.15 format, no integer part |
| LVC_Mixer_SetTarget(&(ptrInstance->MixerStream[1]),TargetGain); |
| } |
| else if (Abs_32(pInstance2->Current-pInstance2->Target) < pInstance2->Delta) |
| { |
| pInstance2->Current = pInstance2->Target; /* Difference is not significant anymore. Make them equal. */ |
| TargetGain=pInstance2->Target>>16; // TargetGain in Q16.15 format, no integer part |
| LVC_Mixer_SetTarget(&(ptrInstance->MixerStream[1]),TargetGain); |
| } |
| else |
| { |
| /* Soft mixing has to be applied */ |
| HardMixing = FALSE; |
| } |
| } |
| |
| if(HardMixing == FALSE) |
| { |
| LVC_Core_MixSoft_1St_2i_D16C31_WRA( &(ptrInstance->MixerStream[0]),&(ptrInstance->MixerStream[1]), src, dst, n); |
| } |
| } |
| |
| /****************************************************************************** |
| HARD MIXING |
| *******************************************************************************/ |
| |
| if (HardMixing) |
| { |
| if (((pInstance1->Target>>16) == 0x7FFF)&&((pInstance2->Target>>16) == 0x7FFF)) |
| { |
| if(src!=dst) |
| { |
| Copy_16(src, dst, n); |
| } |
| } |
| else |
| { |
| LVC_Core_MixHard_1St_2i_D16C31_SAT(&(ptrInstance->MixerStream[0]),&(ptrInstance->MixerStream[1]), src, dst, n); |
| } |
| } |
| |
| /****************************************************************************** |
| CALL BACK |
| *******************************************************************************/ |
| |
| if (ptrInstance->MixerStream[0].CallbackSet) |
| { |
| if (Abs_32(pInstance1->Current-pInstance1->Target) < pInstance1->Delta) |
| { |
| pInstance1->Current = pInstance1->Target; /* Difference is not significant anymore. Make them equal. */ |
| TargetGain=pInstance1->Target>>(16-pInstance1->Shift); // TargetGain in Q16.15 format |
| LVC_Mixer_SetTarget(&ptrInstance->MixerStream[0],TargetGain); |
| ptrInstance->MixerStream[0].CallbackSet = FALSE; |
| if (ptrInstance->MixerStream[0].pCallBack != 0) |
| { |
| (*ptrInstance->MixerStream[0].pCallBack) ( ptrInstance->MixerStream[0].pCallbackHandle, ptrInstance->MixerStream[0].pGeneralPurpose,ptrInstance->MixerStream[0].CallbackParam ); |
| } |
| } |
| } |
| if (ptrInstance->MixerStream[1].CallbackSet) |
| { |
| if (Abs_32(pInstance2->Current-pInstance2->Target) < pInstance2->Delta) |
| { |
| pInstance2->Current = pInstance2->Target; /* Difference is not significant anymore. Make them equal. */ |
| TargetGain=pInstance2->Target>>(16-pInstance2->Shift); // TargetGain in Q16.15 format |
| LVC_Mixer_SetTarget(&ptrInstance->MixerStream[1],TargetGain); |
| ptrInstance->MixerStream[1].CallbackSet = FALSE; |
| if (ptrInstance->MixerStream[1].pCallBack != 0) |
| { |
| (*ptrInstance->MixerStream[1].pCallBack) ( ptrInstance->MixerStream[1].pCallbackHandle, ptrInstance->MixerStream[1].pGeneralPurpose,ptrInstance->MixerStream[1].CallbackParam ); |
| } |
| } |
| } |
| } |
| |
| /**********************************************************************************/ |