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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);
| }
| }
|
|
