You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
47 lines
789 B
C
47 lines
789 B
C
#include "ref.h"
|
|
|
|
void ref_cmplx_mag_squared_f32(
|
|
float32_t * pSrc,
|
|
float32_t * pDst,
|
|
uint32_t numSamples)
|
|
{
|
|
uint32_t i;
|
|
|
|
for(i=0;i<numSamples*2;i+=2)
|
|
{
|
|
*pDst++ = pSrc[i] * pSrc[i] + pSrc[i+1] * pSrc[i+1];
|
|
}
|
|
}
|
|
|
|
void ref_cmplx_mag_squared_q31(
|
|
q31_t * pSrc,
|
|
q31_t * pDst,
|
|
uint32_t numSamples)
|
|
{
|
|
uint32_t i;
|
|
q31_t acc0,acc1;
|
|
|
|
for(i=0;i<numSamples*2;i+=2)
|
|
{
|
|
acc0 = (q31_t)(((q63_t)pSrc[i] * pSrc[i]) >> 33);
|
|
acc1 = (q31_t)(((q63_t)pSrc[i+1] * pSrc[i+1]) >> 33);
|
|
*pDst++ = acc0 + acc1;
|
|
}
|
|
}
|
|
|
|
void ref_cmplx_mag_squared_q15(
|
|
q15_t * pSrc,
|
|
q15_t * pDst,
|
|
uint32_t numSamples)
|
|
{
|
|
uint32_t i;
|
|
q31_t acc0,acc1;
|
|
|
|
for(i=0;i<numSamples*2;i+=2)
|
|
{
|
|
acc0 = pSrc[i] * pSrc[i];
|
|
acc1 = pSrc[i+1] * pSrc[i+1];
|
|
*pDst++ = (q15_t) (((q63_t) acc0 + acc1) >> 17);
|
|
}
|
|
}
|