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SymmColumnSmallVec_32s16s 3x1

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NEON speedup: 1.75x
Auto-vect speedup: 1x
This commit is contained in:
orestis 2014-12-19 22:36:46 +02:00
parent 33dfeb85be
commit 99e782e62c
1 changed files with 26 additions and 1 deletions
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27
modules/imgproc/src/filter.cpp
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@ -2693,7 +2693,32 @@ struct SymmColumnSmallVec_32s16s
}
else
{
return 0;
float32x2_t k32 = vdup_n_f32(0);
k32 = vld1_lane_f32(ky, k32, 0);
k32 = vld1_lane_f32(ky + 1, k32, 1);
for( ; i <= width - 4; i += 4 )
{
int32x4_t x0, x1, x2, x3, x4;
x0 = vld1q_s32((int32_t const *)(S0 + i));
x1 = vld1q_s32((int32_t const *)(S1 + i));
x2 = vld1q_s32((int32_t const *)(S2 + i));
x3 = vaddq_s32(x0, x2);
float32x4_t s0, s1, s2;
s0 = vcvtq_f32_s32(x1);
s1 = vcvtq_f32_s32(x3);
s2 = vmlaq_lane_f32(df4, s0, k32, 0);
s2 = vmlaq_lane_f32(s2, s1, k32, 1);
x4 = vcvtq_s32_f32(s2);
int16x4_t x5;
x5 = vqmovn_s32(x4);
vst1_s16((int16_t *)(dst + i), x5);
}
}
}
else