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/*
* Copyright (C) 2004-2010 NXP Software
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __MIXER_H__
#define __MIXER_H__
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#include "LVM_Types.h"
/**********************************************************************************
INSTANCE MEMORY TYPE DEFINITION
***********************************************************************************/
typedef struct
{
LVM_INT32 Alpha; /* Time constant. Set by calling application. Can be changed at any time */
LVM_INT32 Target; /* Target value. Set by calling application. Can be changed at any time */
LVM_INT32 Current; /* Current value. Set by the mixer function. */
LVM_INT16 CallbackSet; /* Boolean. Should be set by calling application each time the target value is updated */
LVM_INT16 CallbackParam; /* Parameter that will be used in the calback function */
void *pCallbackHandle; /* Pointer to the instance of the callback function */
void *pGeneralPurpose; /* Pointer for general purpose usage */
LVM_Callback pCallBack; /* Pointer to the callback function */
} Mix_1St_Cll_t;
typedef struct
{
LVM_INT32 Alpha1;
LVM_INT32 Target1;
LVM_INT32 Current1;
LVM_INT16 CallbackSet1;
LVM_INT16 CallbackParam1;
void *pCallbackHandle1;
void *pGeneralPurpose1;
LVM_Callback pCallBack1;
LVM_INT32 Alpha2; /* Warning the address of this location is passed as a pointer to Mix_1St_Cll_t in some functions */
LVM_INT32 Target2;
LVM_INT32 Current2;
LVM_INT16 CallbackSet2;
LVM_INT16 CallbackParam2;
void *pCallbackHandle2;
void *pGeneralPurpose2;
LVM_Callback pCallBack2;
} Mix_2St_Cll_t;
/*** General functions ************************************************************/
LVM_UINT32 LVM_Mixer_TimeConstant(LVM_UINT32 tc,
LVM_UINT16 Fs,
LVM_UINT16 NumChannels);
void MixSoft_1St_D32C31_WRA( Mix_1St_Cll_t *pInstance,
const LVM_INT32 *src,
LVM_INT32 *dst,
LVM_INT16 n);
void MixSoft_2St_D32C31_SAT( Mix_2St_Cll_t *pInstance,
const LVM_INT32 *src1,
const LVM_INT32 *src2,
LVM_INT32 *dst,
LVM_INT16 n);
void MixInSoft_D32C31_SAT( Mix_1St_Cll_t *pInstance,
const LVM_INT32 *src,
LVM_INT32 *dst,
LVM_INT16 n);
/**********************************************************************************
FUNCTION PROTOTYPES (LOW LEVEL SUBFUNCTIONS)
***********************************************************************************/
void Core_MixSoft_1St_D32C31_WRA( Mix_1St_Cll_t *pInstance,
const LVM_INT32 *src,
LVM_INT32 *dst,
LVM_INT16 n);
void Core_MixHard_2St_D32C31_SAT( Mix_2St_Cll_t *pInstance,
const LVM_INT32 *src1,
const LVM_INT32 *src2,
LVM_INT32 *dst,
LVM_INT16 n);
void Core_MixInSoft_D32C31_SAT( Mix_1St_Cll_t *pInstance,
const LVM_INT32 *src,
LVM_INT32 *dst,
LVM_INT16 n);
#ifdef __cplusplus
}
#endif /* __cplusplus */
/**********************************************************************************/
#endif /* __MIXER_H__ */
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