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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.
*/
/************************************************************************/
/* */
/* Project:: */
/* $Author: beq07716 $*/
/* $Revision: 1000 $*/
/* $Date: 2010-06-28 13:08:20 +0200 (Mon, 28 Jun 2010) $*/
/* */
/************************************************************************/
/**********************************************************************************
INCLUDE FILES
***********************************************************************************/
#include "Mixer_private.h"
#include "LVM_Macros.h"
/**********************************************************************************
FUNCTION CORE_MIXSOFT_1ST_D32C31_WRA
***********************************************************************************/
void Core_MixSoft_1St_D32C31_WRA( Mix_1St_Cll_t *pInstance,
const LVM_INT32 *src,
LVM_INT32 *dst,
LVM_INT16 n)
{
LVM_INT32 Temp1,Temp2;
LVM_INT16 OutLoop;
LVM_INT16 InLoop;
LVM_INT32 TargetTimesOneMinAlpha;
LVM_INT32 CurrentTimesAlpha;
LVM_INT16 CurrentShort;
LVM_INT16 ii;
InLoop = (LVM_INT16)(n >> 2); /* Process per 4 samples */
OutLoop = (LVM_INT16)(n - (InLoop << 2));
MUL32x32INTO32((0x7FFFFFFF-pInstance->Alpha),pInstance->Target,TargetTimesOneMinAlpha,31) /* Q31 * Q31 in Q31 */
if (pInstance->Target >= pInstance->Current)
{
TargetTimesOneMinAlpha +=2; /* Ceil*/
}
if (OutLoop!=0)
{
MUL32x32INTO32(pInstance->Current,pInstance->Alpha,CurrentTimesAlpha,31) /* Q31 * Q31 in Q31 */
pInstance->Current = TargetTimesOneMinAlpha + CurrentTimesAlpha; /* Q31 + Q31 into Q31*/
CurrentShort = (LVM_INT16)(pInstance->Current>>16); /* From Q31 to Q15*/
for (ii = OutLoop; ii != 0; ii--)
{
Temp1=*src;
src++;
MUL32x16INTO32(Temp1,CurrentShort,Temp2,15)
*dst = Temp2;
dst++;
}
}
for (ii = InLoop; ii != 0; ii--)
{
MUL32x32INTO32(pInstance->Current,pInstance->Alpha,CurrentTimesAlpha,31) /* Q31 * Q31 in Q31 */
pInstance->Current = TargetTimesOneMinAlpha + CurrentTimesAlpha; /* Q31 + Q31 into Q31*/
CurrentShort = (LVM_INT16)(pInstance->Current>>16); /* From Q31 to Q15*/
Temp1=*src;
src++;
MUL32x16INTO32(Temp1,CurrentShort,Temp2,15)
*dst = Temp2;
dst++;
Temp1=*src;
src++;
MUL32x16INTO32(Temp1,CurrentShort,Temp2,15)
*dst = Temp2;
dst++;
Temp1=*src;
src++;
MUL32x16INTO32(Temp1,CurrentShort,Temp2,15)
*dst = Temp2;
dst++;
Temp1=*src;
src++;
MUL32x16INTO32(Temp1,CurrentShort,Temp2,15)
*dst = Temp2;
dst++;
}
}
/**********************************************************************************/
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