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#include "ref.h"
void ref_scale_f32(
float32_t * pSrc,
float32_t scale,
float32_t * pDst,
uint32_t blockSize)
{
uint32_t i;
for(i=0;i<blockSize;i++)
{
pDst[i] = pSrc[i] * scale;
}
}
void ref_scale_q31(
q31_t * pSrc,
q31_t scaleFract,
int8_t shift,
q31_t * pDst,
uint32_t blockSize)
{
uint32_t i;
int8_t kShift = shift + 1; /* Shift to apply after scaling */
int8_t sign = (kShift & 0x80);
q63_t temp;
for(i=0;i<blockSize;i++)
{
temp = ((q63_t) pSrc[i] * scaleFract) >> 32;
if (sign)
pDst[i] = temp >> -kShift;
else
pDst[i] = ref_sat_q31( (q63_t)temp << kShift );
}
}
void ref_scale_q15(
q15_t * pSrc,
q15_t scaleFract,
int8_t shift,
q15_t * pDst,
uint32_t blockSize)
{
uint32_t i;
int8_t kShift = 15 - shift; /* Shift to apply after scaling */
for(i=0;i<blockSize;i++)
{
pDst[i] = ref_sat_q15(((q31_t) pSrc[i] * scaleFract) >> kShift);
}
}
void ref_scale_q7(
q7_t * pSrc,
q7_t scaleFract,
int8_t shift,
q7_t * pDst,
uint32_t blockSize)
{
uint32_t i;
int8_t kShift = 7 - shift; /* Shift to apply after scaling */
for(i=0;i<blockSize;i++)
{
pDst[i] = ref_sat_q7(((q15_t) pSrc[i] * scaleFract) >> kShift);
}
}
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