1/*
2 * Copyright (C) 2004-2010 NXP Software
3 * Copyright (C) 2010 The Android Open Source Project
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 *      http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18/**********************************************************************************
19   INCLUDE FILES
20***********************************************************************************/
21
22#include "VectorArithmetic.h"
23
24/**********************************************************************************
25   FUNCTION  From2iToMS_16x16
26***********************************************************************************/
27
28void From2iToMS_16x16( const LVM_INT16  *src,
29                             LVM_INT16  *dstM,
30                             LVM_INT16  *dstS,
31                             LVM_INT16  n )
32{
33    LVM_INT32 temp1,left,right;
34    LVM_INT16 ii;
35    for (ii = n; ii != 0; ii--)
36    {
37        left = (LVM_INT32)*src;
38        src++;
39
40        right = (LVM_INT32)*src;
41        src++;
42
43        /* Compute M signal*/
44        temp1 =  (left+right)>>1;
45        *dstM = (LVM_INT16)temp1;
46        dstM++;
47
48        /* Compute S signal*/
49        temp1 =  (left-right)>>1;
50        *dstS = (LVM_INT16)temp1;
51        dstS++;
52    }
53
54    return;
55}
56
57/**********************************************************************************/
58