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 "Mixer_private.h"
23#include "VectorArithmetic.h"
24
25/**********************************************************************************
26   DEFINITIONS
27***********************************************************************************/
28
29#define TRUE          1
30#define FALSE         0
31
32
33
34/**********************************************************************************
35   FUNCTION MIXSOFT_1ST_D32C31_WRA
36***********************************************************************************/
37
38void MixSoft_1St_D32C31_WRA(    Mix_1St_Cll_t       *pInstance,
39                                const LVM_INT32     *src,
40                                      LVM_INT32     *dst,
41                                      LVM_INT16     n)
42{
43    char HardMixing = TRUE;
44
45    if(n<=0)    return;
46
47    /******************************************************************************
48       SOFT MIXING
49    *******************************************************************************/
50    if (pInstance->Current != pInstance->Target)
51    {
52        if(pInstance->Alpha == 0){
53            pInstance->Current = pInstance->Target;
54        }else if ((pInstance->Current-pInstance->Target <POINT_ZERO_ONE_DB)&&
55                 (pInstance->Current-pInstance->Target > -POINT_ZERO_ONE_DB)){
56            pInstance->Current = pInstance->Target; /* Difference is not significant anymore.  Make them equal. */
57        }else{
58            /* Soft mixing has to be applied */
59            HardMixing = FALSE;
60            Core_MixSoft_1St_D32C31_WRA( pInstance, src, dst, n);
61        }
62    }
63
64    /******************************************************************************
65       HARD MIXING
66    *******************************************************************************/
67
68    if (HardMixing){
69        if (pInstance->Target == 0)
70            LoadConst_32(0, dst, n);
71        else if ((pInstance->Target>>16) == 0x7FFF){
72            if (src != dst)
73                Copy_16((LVM_INT16*)src, (LVM_INT16*)dst, (LVM_INT16)(n * 2));
74        }
75        else
76            Mult3s_32x16( src, (LVM_INT16)(pInstance->Current>>16), dst, n );
77    }
78
79    /******************************************************************************
80       CALL BACK
81    *******************************************************************************/
82
83    if (pInstance->CallbackSet){
84        if ((pInstance->Current-pInstance->Target <POINT_ZERO_ONE_DB)&&
85            (pInstance->Current-pInstance->Target > -POINT_ZERO_ONE_DB)){
86            pInstance->Current = pInstance->Target; /* Difference is not significant anymore.  Make them equal. */
87            pInstance->CallbackSet = FALSE;
88            if (pInstance->pCallBack != 0){
89                (*pInstance->pCallBack) ( pInstance->pCallbackHandle, pInstance->pGeneralPurpose,pInstance->CallbackParam );
90            }
91        }
92    }
93}
94
95/**********************************************************************************/
96