diff options
Diffstat (limited to 'media/libeffects/lvm/lib/Common/src/LVC_MixInSoft_D16C31_SAT.c')
| -rwxr-xr-x | media/libeffects/lvm/lib/Common/src/LVC_MixInSoft_D16C31_SAT.c | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/media/libeffects/lvm/lib/Common/src/LVC_MixInSoft_D16C31_SAT.c b/media/libeffects/lvm/lib/Common/src/LVC_MixInSoft_D16C31_SAT.c new file mode 100755 index 0000000..52be129 --- /dev/null +++ b/media/libeffects/lvm/lib/Common/src/LVC_MixInSoft_D16C31_SAT.c @@ -0,0 +1,120 @@ +/* + * 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. + */ + +/********************************************************************************** + + $Author: beq07716 $ + $Revision: 1000 $ + $Date: 2010-06-28 13:08:20 +0200 (Mon, 28 Jun 2010) $ + +***********************************************************************************/ + +/********************************************************************************** + INCLUDE FILES +***********************************************************************************/ + +#include "LVC_Mixer_Private.h" +#include "VectorArithmetic.h" +#include "ScalarArithmetic.h" + +/********************************************************************************** + DEFINITIONS +***********************************************************************************/ + +#define TRUE 1 +#define FALSE 0 + +/********************************************************************************** + FUNCTION MIXINSOFT_D16C31_SAT +***********************************************************************************/ + +void LVC_MixInSoft_D16C31_SAT( LVMixer3_1St_st *ptrInstance, + LVM_INT16 *src, + LVM_INT16 *dst, + LVM_INT16 n) +{ + char HardMixing = TRUE; + LVM_INT32 TargetGain; + Mix_Private_st *pInstance=(Mix_Private_st *)(ptrInstance->MixerStream[0].PrivateParams); + + if(n<=0) return; + + /****************************************************************************** + SOFT MIXING + *******************************************************************************/ + if (pInstance->Current != pInstance->Target) + { + if(pInstance->Delta == 0x7FFFFFFF){ + pInstance->Current = pInstance->Target; + TargetGain=pInstance->Target>>(16-pInstance->Shift); // TargetGain in Q16.15 format + LVC_Mixer_SetTarget(&(ptrInstance->MixerStream[0]),TargetGain); + }else if (Abs_32(pInstance->Current-pInstance->Target) < pInstance->Delta){ + pInstance->Current = pInstance->Target; /* Difference is not significant anymore. Make them equal. */ + TargetGain=pInstance->Target>>(16-pInstance->Shift); // TargetGain in Q16.15 format + LVC_Mixer_SetTarget(&(ptrInstance->MixerStream[0]),TargetGain); + }else{ + /* Soft mixing has to be applied */ + HardMixing = FALSE; + if(pInstance->Shift!=0){ + Shift_Sat_v16xv16 ((LVM_INT16)pInstance->Shift,src,src,n); + LVC_Core_MixInSoft_D16C31_SAT( &(ptrInstance->MixerStream[0]), src, dst, n); + } + else + LVC_Core_MixInSoft_D16C31_SAT( &(ptrInstance->MixerStream[0]), src, dst, n); + } + } + + /****************************************************************************** + HARD MIXING + *******************************************************************************/ + + if (HardMixing){ + if (pInstance->Target != 0){ /* Nothing to do in case Target = 0 */ + if ((pInstance->Target>>16) == 0x7FFF){ + if(pInstance->Shift!=0) + Shift_Sat_v16xv16 ((LVM_INT16)pInstance->Shift,src,src,n); + Add2_Sat_16x16( src, dst, n ); + } + else{ + if(pInstance->Shift!=0) + Shift_Sat_v16xv16 ((LVM_INT16)pInstance->Shift,src,src,n); + Mac3s_Sat_16x16(src,(LVM_INT16)(pInstance->Target>>16),dst,n); + pInstance->Current = pInstance->Target; /* In case the LVCore function would have changed the Current value */ + } + } + } + + + /****************************************************************************** + CALL BACK + *******************************************************************************/ + + if (ptrInstance->MixerStream[0].CallbackSet){ + if (Abs_32(pInstance->Current-pInstance->Target) < pInstance->Delta){ + pInstance->Current = pInstance->Target; /* Difference is not significant anymore. Make them equal. */ + TargetGain=pInstance->Target>>(16-pInstance->Shift); // TargetGain in Q16.15 format + LVC_Mixer_SetTarget(ptrInstance->MixerStream,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 ); + } + } + } + +} + +/**********************************************************************************/ |