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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 "VectorArithmetic.h"
/**********************************************************************************
FUNCTION Shift_Sat_v32xv32
***********************************************************************************/
void Shift_Sat_v32xv32 (const LVM_INT16 val,
const LVM_INT32 *src,
LVM_INT32 *dst,
LVM_INT16 n)
{
LVM_INT32 ii;
LVM_INT16 RShift;
if(val>0)
{
LVM_INT32 a,b;
for (ii = n; ii != 0; ii--)
{
a=*src;
src++;
b=(a<<val);
if( (b>>val) != a ) /* if overflow occured, right shift will show difference*/
{
if(a<0)
{
b=0x80000000l;
}
else
{
b=0x7FFFFFFFl;
}
}
*dst = b;
dst++;
}
}
else if(val<0)
{
RShift=(LVM_INT16)(-val);
for (ii = n; ii != 0; ii--)
{
*dst = (*src >> RShift);
dst++;
src++;
}
}
else
{
if(src!=dst)
{
Copy_16((LVM_INT16 *)src,(LVM_INT16 *)dst,(LVM_INT16)(n<<1));
}
}
return;
}
/**********************************************************************************/
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