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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 #include "LVM_Types.h"
19 #include "LVM_Macros.h"
20 #include "LVC_Mixer_Private.h"
21 
22 
23 /************************************************************************/
24 /* FUNCTION:                                                            */
25 /*   LVMixer3_GetCurrent                                                */
26 /*                                                                      */
27 /* DESCRIPTION:                                                         */
28 /*  This function returns the CurrentGain in Q16.15 format              */
29 /*                                                                      */
30 /* RETURNS:                                                             */
31 /*  CurrentGain      - CurrentGain value in Q 16.15 format              */
32 /*                                                                      */
33 /************************************************************************/
34 
LVC_Mixer_GetCurrent(LVMixer3_st * pStream)35 LVM_INT32 LVC_Mixer_GetCurrent( LVMixer3_st *pStream)
36 {
37     LVM_INT32       CurrentGain;
38     Mix_Private_st  *pInstance=(Mix_Private_st *)pStream->PrivateParams;
39     CurrentGain=pInstance->Current>>(16-pInstance->Shift);  // CurrentGain in Q16.15 format
40     return CurrentGain;
41 }
42