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/*
* 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 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 );
}
}
}
}
/**********************************************************************************/
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