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SSE2 optimization of cv::remap doesn't work with big images

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This commit is contained in:
Ilya Lavrenov 2013-12-28 16:28:17 +04:00
parent 05b9c991dd
commit 5db1754d49
1 changed files with 3 additions and 3 deletions
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6
modules/imgproc/src/imgwarp.cpp
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@ -2201,15 +2201,15 @@ struct RemapVec_8u
int operator()( const Mat& _src, void* _dst, const short* XY,
const ushort* FXY, const void* _wtab, int width ) const
{
int cn = _src.channels();
int cn = _src.channels(), x = 0, sstep = (int)_src.step;
if( (cn != 1 && cn != 3 && cn != 4) || !checkHardwareSupport(CV_CPU_SSE2) )
if( (cn != 1 && cn != 3 && cn != 4) || !checkHardwareSupport(CV_CPU_SSE2) ||
sstep > 0x8000 )
return 0;
const uchar *S0 = _src.data, *S1 = _src.data + _src.step;
const short* wtab = cn == 1 ? (const short*)_wtab : &BilinearTab_iC4[0][0][0];
uchar* D = (uchar*)_dst;
int x = 0, sstep = (int)_src.step;
__m128i delta = _mm_set1_epi32(INTER_REMAP_COEF_SCALE/2);
__m128i xy2ofs = _mm_set1_epi32(cn + (sstep << 16));
__m128i z = _mm_setzero_si128();