These Intel® Streaming SIMD Extension 4 (Intel® SSE4) intrinsics pack multiple operations in a single instruction. Blending conditionally copies one field in the source onto the corresponding field in the destination. The prototypes for these instrinsics are in the smmintrin.h file.
Intrinsic Syntax |
Operation |
Corresponding |
|---|---|---|
__m128 _mm_blend_ps(__m128 v1, __m128 v2, const int mask) |
Selects float single precision data from 2 sources using constant mask |
BLENDPS |
__m128d _mm_blend_pd(__m128d v1, __m128d v2, const int mask) |
Selects float double precision data from 2 sources using constant mask |
BLENDPD |
__m128 _mm_blendv_ps(__m128 v1, __m128 v2, __m128 v3) |
Selects float single precision data from 2 sources using variable mask |
BLENDVPS |
__m128d _mm_blendv_pd(__m128d v1, __m128d v2, __m128d v3) |
Selects float double precision data from 2 sources using variable mask |
BLENDVPD |
__m128i _mm_blendv_epi8(__m128i v1, __m128i v2, __m128i mask) |
Selects integer bytes from 2 sources using variable mask |
PBLENDVB |
__m128i _mm_blend_epi16(__m128i v1, __m128i v2, const int mask) |
Selects integer words from 2 sources using constant mask |
PBLENDW |
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