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 Shift_Sat_v16xv16
26***********************************************************************************/
27
28void Shift_Sat_v16xv16 (const   LVM_INT16   val,
29                        const   LVM_INT16   *src,
30                        LVM_INT16   *dst,
31                        LVM_INT16   n)
32{
33    LVM_INT32   temp;
34    LVM_INT32   ii;
35    LVM_INT16   RShift;
36    if(val>0)
37    {
38        for (ii = n; ii != 0; ii--)
39        {
40            temp = (LVM_INT32)*src;
41            src++;
42
43            temp = temp << val;
44
45            if (temp > 0x00007FFF)
46            {
47                *dst = 0x7FFF;
48            }
49            else if (temp < -0x00008000)
50            {
51                *dst = - 0x8000;
52            }
53            else
54            {
55                *dst = (LVM_INT16)temp;
56            }
57            dst++;
58        }
59    }
60    else if(val<0)
61    {
62        RShift=(LVM_INT16)(-val);
63
64        for (ii = n; ii != 0; ii--)
65        {
66            *dst = (LVM_INT16)(*src >> RShift);
67            dst++;
68            src++;
69        }
70    }
71    else
72    {
73        if(src!=dst)
74        {
75            Copy_16(src,dst,n);
76        }
77    }
78    return;
79}
80
81/**********************************************************************************/
82