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Diffstat (limited to 'media/libeffects/lvm/lib/Common/lib/VectorArithmetic.h')
| -rwxr-xr-x | media/libeffects/lvm/lib/Common/lib/VectorArithmetic.h | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/media/libeffects/lvm/lib/Common/lib/VectorArithmetic.h b/media/libeffects/lvm/lib/Common/lib/VectorArithmetic.h new file mode 100755 index 0000000..290a996 --- /dev/null +++ b/media/libeffects/lvm/lib/Common/lib/VectorArithmetic.h @@ -0,0 +1,189 @@ +/* + * 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. + */ + +/********************************************************************************** + + $Author: beq07716 $ + $Revision: 853 $ + $Date: 2010-06-16 15:10:28 +0200 (Wed, 16 Jun 2010) $ + +***********************************************************************************/ + +#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_ */ + +/**********************************************************************************/ |