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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 _VECTOR_ARITHMETIC_H_
#define _VECTOR_ARITHMETIC_H_
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#include "LVM_Types.h"
/**********************************************************************************
VARIOUS FUNCTIONS
***********************************************************************************/
void LoadConst_16( const LVM_INT16 val,
LVM_INT16 *dst,
LVM_INT16 n );
void LoadConst_32( const LVM_INT32 val,
LVM_INT32 *dst,
LVM_INT16 n );
void Copy_16( const LVM_INT16 *src,
LVM_INT16 *dst,
LVM_INT16 n );
/*********************************************************************************
* note: In Mult3s_16x16() saturation of result is not taken care when *
* overflow occurs. *
* For example when *src = 0x8000, val = *0x8000 *
* The function gives the output as 0x8000 instead of 0x7fff *
* This is the only case which will give wrong result. *
* For more information refer to Vector_Arithmetic.doc in /doc folder *
*********************************************************************************/
void Mult3s_16x16( const LVM_INT16 *src,
const LVM_INT16 val,
LVM_INT16 *dst,
LVM_INT16 n);
/*********************************************************************************
* note: In Mult3s_32x16() saturation of result is not taken care when *
* overflow occurs. *
* For example when *src = 0x8000000, val = *0x8000 *
* The function gives the output as 0x8000000 instead of 0x7fffffff *
* This is the only extreme condition which is giving unexpected result *
* For more information refer to Vector_Arithmetic.doc in /doc folder *
*********************************************************************************/
void Mult3s_32x16( const LVM_INT32 *src,
const LVM_INT16 val,
LVM_INT32 *dst,
LVM_INT16 n);
void DelayMix_16x16( const LVM_INT16 *src,
LVM_INT16 *delay,
LVM_INT16 size,
LVM_INT16 *dst,
LVM_INT16 *pOffset,
LVM_INT16 n);
void DelayWrite_32( const LVM_INT32 *src, /* Source 1, to be delayed */
LVM_INT32 *delay, /* Delay buffer */
LVM_UINT16 size, /* Delay size */
LVM_UINT16 *pOffset, /* Delay offset */
LVM_INT16 n);
void Add2_Sat_16x16( const LVM_INT16 *src,
LVM_INT16 *dst,
LVM_INT16 n );
void Add2_Sat_32x32( const LVM_INT32 *src,
LVM_INT32 *dst,
LVM_INT16 n );
void Mac3s_Sat_16x16( const LVM_INT16 *src,
const LVM_INT16 val,
LVM_INT16 *dst,
LVM_INT16 n);
void Mac3s_Sat_32x16( const LVM_INT32 *src,
const LVM_INT16 val,
LVM_INT32 *dst,
LVM_INT16 n);
void DelayAllPass_Sat_32x16To32( LVM_INT32 *delay, /* Delay buffer */
LVM_UINT16 size, /* Delay size */
LVM_INT16 coeff, /* All pass filter coefficient */
LVM_UINT16 DelayOffset, /* Simple delay offset */
LVM_UINT16 *pAllPassOffset, /* All pass filter delay offset */
LVM_INT32 *dst, /* Source/destination */
LVM_INT16 n);
/**********************************************************************************
SHIFT FUNCTIONS
***********************************************************************************/
void Shift_Sat_v16xv16 ( const LVM_INT16 val,
const LVM_INT16 *src,
LVM_INT16 *dst,
LVM_INT16 n);
void Shift_Sat_v32xv32 ( const LVM_INT16 val,
const LVM_INT32 *src,
LVM_INT32 *dst,
LVM_INT16 n);
/**********************************************************************************
AUDIO FORMAT CONVERSION FUNCTIONS
***********************************************************************************/
void MonoTo2I_16( const LVM_INT16 *src,
LVM_INT16 *dst,
LVM_INT16 n);
void MonoTo2I_32( const LVM_INT32 *src,
LVM_INT32 *dst,
LVM_INT16 n);
void From2iToMono_32( const LVM_INT32 *src,
LVM_INT32 *dst,
LVM_INT16 n);
void MSTo2i_Sat_16x16( const LVM_INT16 *srcM,
const LVM_INT16 *srcS,
LVM_INT16 *dst,
LVM_INT16 n );
void From2iToMS_16x16( const LVM_INT16 *src,
LVM_INT16 *dstM,
LVM_INT16 *dstS,
LVM_INT16 n );
void From2iToMono_16( const LVM_INT16 *src,
LVM_INT16 *dst,
LVM_INT16 n);
void JoinTo2i_32x32( const LVM_INT32 *srcL,
const LVM_INT32 *srcR,
LVM_INT32 *dst,
LVM_INT16 n );
/**********************************************************************************
DATA TYPE CONVERSION FUNCTIONS
***********************************************************************************/
void Int16LShiftToInt32_16x32(const LVM_INT16 *src,
LVM_INT32 *dst,
LVM_INT16 n,
LVM_INT16 shift );
void Int32RShiftToInt16_Sat_32x16(const LVM_INT32 *src,
LVM_INT16 *dst,
LVM_INT16 n,
LVM_INT16 shift );
#ifdef __cplusplus
}
#endif /* __cplusplus */
/**********************************************************************************/
#endif /* _VECTOR_ARITHMETIC_H_ */
/**********************************************************************************/
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