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
MixSoft_1St_D32C31_WRA(Mix_1St_Cll_t * pInstance,const LVM_INT32 * src,LVM_INT32 * dst,LVM_INT16 n)38 void 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