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Audio Format: Add vec_sat_int16x4 function 

- Added to saturate and pack four 32-bit integers into 16x4 vector.

Signed-off-by: Shriram Shastry <malladi.sastry@intel.com>
This commit is contained in:
Shriram Shastry 2024-08-04 22:48:31 +05:30 committed by Liam Girdwood
parent b4c439051b
commit 7288ed005a
1 changed files with 21 additions and 0 deletions
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21
src/include/sof/audio/format_hifi3.h
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@ -112,6 +112,27 @@ static inline int16_t sat_int16(int32_t x)
return AE_MOVAD16_0(result);
}
/**
* @brief Saturate and round four 32-bit integers to 16-bit packed into a 16x4 vector.
*
* @param x 32-bit integer.
* @param y 32-bit integer.
* @param z 32-bit integer.
* @param q 32-bit integer.
* @return Packed 16-bit saturated integers.
*
* This function takes four 32-bit integers, packs them into two 32x2 vectors,
* and performs 16-bit saturation on each element, returning the result in a 16x4 vector.
*/
static inline ae_int16x4 vec_sat_int16x4(int32_t x, int32_t y, int32_t z, int32_t q)
{
/* Move four 32-bit values to ae_int32x2 type */
ae_int32x2 d0 = AE_MOVDA32X2(x, y);
ae_int32x2 d1 = AE_MOVDA32X2(z, q);
/* Saturate all values to 16-bit and pack them */
return AE_SAT16X4(d0, d1);
}
static inline int8_t sat_int8(int32_t x)
{
if (x > INT8_MAX)