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   FUNCTION MIXINSOFT_D32C31_SAT
34***********************************************************************************/
35
36void MixInSoft_D32C31_SAT( Mix_1St_Cll_t        *pInstance,
37                           const LVM_INT32      *src,
38                                 LVM_INT32      *dst,
39                                 LVM_INT16      n)
40{
41    char HardMixing = TRUE;
42
43    if(n<=0)    return;
44
45    /******************************************************************************
46       SOFT MIXING
47    *******************************************************************************/
48    if (pInstance->Current != pInstance->Target)
49    {
50        if(pInstance->Alpha == 0){
51            pInstance->Current = pInstance->Target;
52        }else if ((pInstance->Current-pInstance->Target <POINT_ZERO_ONE_DB)&&
53                 (pInstance->Current-pInstance->Target > -POINT_ZERO_ONE_DB)){
54            pInstance->Current = pInstance->Target; /* Difference is not significant anymore.  Make them equal. */
55        }else{
56            /* Soft mixing has to be applied */
57            HardMixing = FALSE;
58            Core_MixInSoft_D32C31_SAT( pInstance, src, dst, n);
59        }
60    }
61
62    /******************************************************************************
63       HARD MIXING
64    *******************************************************************************/
65
66    if (HardMixing){
67        if (pInstance->Target != 0){ /* Nothing to do in case Target = 0 */
68            if ((pInstance->Target>>16) == 0x7FFF)
69                Add2_Sat_32x32( src, dst, n );
70            else{
71                Core_MixInSoft_D32C31_SAT( pInstance, src, dst, n);
72                pInstance->Current = pInstance->Target; /* In case the core function would have changed the Current value */
73            }
74        }
75    }
76
77    /******************************************************************************
78       CALL BACK
79    *******************************************************************************/
80    /* Call back before the hard mixing, because in this case, hard mixing makes
81       use of the core soft mix function which can change the Current value!      */
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