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#ifndef __LVC_MIXER_PRIVATE_H__
19#define __LVC_MIXER_PRIVATE_H__
20
21/**********************************************************************************
22   INCLUDE FILES
23***********************************************************************************/
24
25#include "LVC_Mixer.h"
26#include "VectorArithmetic.h"
27
28/* Instance parameter structure */
29typedef struct
30{
31    /* General */
32    LVM_INT32                       Target;                 /* 32 bit number specifying fractional value of Target Gain */
33    LVM_INT32                       Current;                /* 32 bit number specifying fractional valude of Current Gain */
34    LVM_INT32                       Shift;                  /* Left Shift for Integer part of Gain */
35    LVM_INT32                       Delta;                  /* 32 bit number specifying the fractional value of Delta Gain */
36} Mix_Private_st;
37
38
39
40/**********************************************************************************
41   DEFINITIONS
42***********************************************************************************/
43#define LVCore_MixInSoft_D32C31_SAT    LVCore_InSoft_D32C31_SAT
44#define LVCore_MixSoft_1St_D32C31_WRA  LVCore_Soft_1St_D32C31_WRA
45#define LVCore_MixHard_2St_D32C31_SAT  LVCore_Hard_2St_D32C31_SAT
46
47/**********************************************************************************
48   FUNCTION PROTOTYPES (LOW LEVEL SUBFUNCTIONS)
49***********************************************************************************/
50
51/*** 16 bit functions *************************************************************/
52
53void LVC_Core_MixInSoft_D16C31_SAT( LVMixer3_st *pInstance,
54                                    const LVM_INT16     *src,
55                                          LVM_INT16     *dst,
56                                          LVM_INT16     n);
57
58void LVC_Core_MixSoft_1St_D16C31_WRA( LVMixer3_st *pInstance,
59                                    const LVM_INT16     *src,
60                                          LVM_INT16     *dst,
61                                          LVM_INT16     n);
62
63void LVC_Core_MixHard_2St_D16C31_SAT( LVMixer3_st *pInstance1,
64                                    LVMixer3_st         *pInstance2,
65                                    const LVM_INT16     *src1,
66                                    const LVM_INT16     *src2,
67                                          LVM_INT16     *dst,
68                                          LVM_INT16     n);
69
70/**********************************************************************************/
71/* For applying different gains to Left and right chennals                        */
72/* ptrInstance1 applies to Left channel                                           */
73/* ptrInstance2 applies to Right channel                                          */
74/* Gain values should not be more that 1.0                                        */
75/**********************************************************************************/
76
77void LVC_Core_MixSoft_1St_2i_D16C31_WRA( LVMixer3_st        *ptrInstance1,
78                                         LVMixer3_st        *ptrInstance2,
79                                         const LVM_INT16    *src,
80                                         LVM_INT16          *dst,   /* dst can be equal to src */
81                                         LVM_INT16          n);     /* Number of stereo samples */
82
83/**********************************************************************************/
84/* For applying different gains to Left and right chennals                        */
85/* ptrInstance1 applies to Left channel                                           */
86/* ptrInstance2 applies to Right channel                                          */
87/* Gain values should not be more that 1.0                                        */
88/**********************************************************************************/
89void LVC_Core_MixHard_1St_2i_D16C31_SAT( LVMixer3_st        *ptrInstance1,
90                                         LVMixer3_st        *ptrInstance2,
91                                         const LVM_INT16    *src,
92                                         LVM_INT16          *dst,    /* dst can be equal to src */
93                                         LVM_INT16          n);      /* Number of stereo samples */
94
95
96
97/*** 32 bit functions *************************************************************/
98
99void LVC_Core_MixInSoft_D32C31_SAT( LVMixer3_st *pInstance,
100                                    const LVM_INT32     *src,
101                                          LVM_INT32     *dst,
102                                          LVM_INT16     n);
103
104void LVC_Core_MixSoft_1St_D32C31_WRA( LVMixer3_st *pInstance,
105                                    const LVM_INT32     *src,
106                                          LVM_INT32     *dst,
107                                          LVM_INT16     n);
108
109void LVC_Core_MixHard_2St_D32C31_SAT( LVMixer3_st *pInstance1,
110                                    LVMixer3_st         *pInstance2,
111                                    const LVM_INT32     *src1,
112                                    const LVM_INT32     *src2,
113                                          LVM_INT32     *dst,
114                                          LVM_INT16     n);
115
116/**********************************************************************************/
117
118#endif //#ifndef __LVC_MIXER_PRIVATE_H__
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