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 DelayMix_16x16
26***********************************************************************************/
27
28void DelayWrite_32(const LVM_INT32  *src,               /* Source 1, to be delayed */
29                         LVM_INT32  *delay,             /* Delay buffer */
30                         LVM_UINT16 size,               /* Delay size */
31                         LVM_UINT16 *pOffset,           /* Delay offset */
32                         LVM_INT16  n)                  /* Number of samples */
33{
34    LVM_INT16   i;
35    LVM_INT16   Offset  = (LVM_INT16)*pOffset;
36
37    for (i=0; i<n; i++)
38    {
39        delay[Offset] = *src;
40        Offset++;
41        src++;
42
43        /* Make the delay buffer a circular buffer */
44        if (Offset >= size)
45        {
46            Offset = 0;
47        }
48    }
49
50    /* Update the offset */
51    *pOffset = (LVM_UINT16)Offset;
52
53    return;
54}
55
56/**********************************************************************************/
57
58