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cv::warpAffine

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This commit is contained in:
Ilya Lavrenov 2014-10-11 02:34:04 -07:00
parent 85a814f748
commit 46faf592fc
1 changed files with 27 additions and 1 deletions
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28
modules/imgproc/src/imgwarp.cpp
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@ -4423,13 +4423,27 @@ public:
int Y0 = saturate_cast<int>((M[4]*(y + y1) + M[5])*AB_SCALE) + round_delta;
if( interpolation == INTER_NEAREST )
for( x1 = 0; x1 < bw; x1++ )
{
x1 = 0;
#if CV_NEON
int32x4_t v_X0 = vdupq_n_s32(X0), v_Y0 = vdupq_n_s32(Y0);
for( ; x1 <= bw - 4; x1 += 4 )
{
int32x4_t v_X = vshrq_n_s32(vaddq_s32(v_X0, vld1q_s32(adelta + x + x1)), AB_BITS - INTER_BITS);
int32x4_t v_Y = vshrq_n_s32(vaddq_s32(v_Y0, vld1q_s32(bdelta + x + x1)), AB_BITS - INTER_BITS);
vst1q_s16(xy + (x1 << 1), vcombine_s16(vqmovn_s32(vshrq_n_s32(v_X, INTER_BITS)),
vqmovn_s32(vshrq_n_s32(v_Y, INTER_BITS))));
}
#endif
for( ; x1 < bw; x1++ )
{
int X = (X0 + adelta[x+x1]) >> AB_BITS;
int Y = (Y0 + bdelta[x+x1]) >> AB_BITS;
xy[x1*2] = saturate_cast<short>(X);
xy[x1*2+1] = saturate_cast<short>(Y);
}
}
else
{
short* alpha = A + y1*bw;
@ -4467,6 +4481,18 @@ public:
_mm_storeu_si128((__m128i*)(alpha + x1), fx_);
}
}
// #elif CV_NEON
// int32x4_t v_X0 = vdupq_n_s32(X0), v_Y0 = vdupq_n_s32(Y0), v_mask = vdupq_n_s32(INTER_TAB_SIZE - 1);
// for( ; x1 <= bw - 4; x1 += 4 )
// {
// int32x4_t v_X = vshrq_n_s32(vaddq_s32(v_X0, vld1q_s32(adelta + x + x1)), AB_BITS - INTER_BITS);
// int32x4_t v_Y = vshrq_n_s32(vaddq_s32(v_Y0, vld1q_s32(bdelta + x + x1)), AB_BITS - INTER_BITS);
// vst1q_s16(xy + (x1 << 1), vcombine_s16(vqmovn_s32(vshrq_n_s32(v_X, INTER_BITS)),
// vqmovn_s32(vshrq_n_s32(v_Y, INTER_BITS))));
// vst1_s16(alpha + x1, vmovn_s32(vaddq_s32(vshlq_n_s32(vandq_s32(v_Y, v_mask), INTER_BITS),
// vandq_s32(v_X, v_mask))));
// }
#endif
for( ; x1 < bw; x1++ )
{