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calib3d: use Mat::reserveBuffer() instead of .create()

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to allocate memory >2Gb
This commit is contained in:
Alexander Alekhin 2018-09-01 13:18:08 +00:00
parent f9c8bb40b1
commit 701760dbeb
1 changed files with 5 additions and 3 deletions
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8
modules/calib3d/src/stereosgbm.cpp
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@ -1487,12 +1487,14 @@ static void computeDisparitySGBM_HH4( const Mat& img1, const Mat& img2,
size_t minLrSize = width1 , LrSize = minLrSize*D2;
int hsumBufNRows = SH2*2 + 2;
size_t totalBufSize = (LrSize + minLrSize)*NLR*sizeof(CostType) + // minLr[] and Lr[]
costBufSize*hsumBufNRows*sizeof(CostType) + // hsumBuf
CSBufSize*2*sizeof(CostType) + 1024; // C, S
costBufSize*hsumBufNRows*sizeof(CostType) + // hsumBuf
CSBufSize*2*sizeof(CostType) + 1024; // C, S
if( buffer.empty() || !buffer.isContinuous() ||
buffer.cols*buffer.rows*buffer.elemSize() < totalBufSize )
buffer.create(1, (int)totalBufSize, CV_8U);
{
buffer.reserveBuffer(totalBufSize);
}
// summary cost over different (nDirs) directions
CostType* Cbuf = (CostType*)alignPtr(buffer.ptr(), ALIGN);