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#include "SKP_Silk_SigProc_FIX.h" | |
/* sum= for(i=0;i<len;i++)inVec1[i]*inVec2[i]; --- inner product */ | |
/* Note for ARM asm: */ | |
/* * inVec1 and inVec2 should be at least 2 byte aligned. (Or defined as short/int16) */ | |
/* * len should be positive 16bit integer. */ | |
/* * only when len>6, memory access can be reduced by half. */ | |
SKP_int32 SKP_Silk_inner_prod_aligned( | |
const SKP_int16 *const inVec1, /* I input vector 1 */ | |
const SKP_int16 *const inVec2, /* I input vector 2 */ | |
const SKP_int len /* I vector lengths */ | |
) | |
{ | |
SKP_int i; | |
SKP_int32 sum = 0; | |
for( i = 0; i < len; i++ ) { | |
sum = SKP_SMLABB( sum, inVec1[ i ], inVec2[ i ] ); | |
} | |
return sum; | |
} | |
SKP_int32 SKP_Silk_inner_prod_aligned_scale( | |
const SKP_int16 *const inVec1, /* I input vector 1 */ | |
const SKP_int16 *const inVec2, /* I input vector 2 */ | |
const SKP_int scale, /* I number of bits to shift */ | |
const SKP_int len /* I vector lengths */ | |
) | |
{ | |
SKP_int i; | |
SKP_int32 sum = 0; | |
for( i = 0; i < len; i++ ) { | |
sum = SKP_ADD_RSHIFT32( sum, SKP_SMULBB( inVec1[ i ], inVec2[ i ] ), scale ); | |
} | |
return sum; | |
} | |
SKP_int64 SKP_Silk_inner_prod16_aligned_64( | |
const SKP_int16 *inVec1, /* I input vector 1 */ | |
const SKP_int16 *inVec2, /* I input vector 2 */ | |
const SKP_int len /* I vector lengths */ | |
) | |
{ | |
SKP_int i; | |
SKP_int64 sum = 0; | |
for( i = 0; i < len; i++ ) { | |
sum = SKP_SMLALBB( sum, inVec1[ i ], inVec2[ i ] ); | |
} | |
return sum; | |
} |