Merge pull request #12374 from alalek:issue_12368

ec3492a2 · Alexander Alekhin · 07808c8d · 701760db · ec3492a2
Commit ec3492a2 authored Sep 03, 2018 by Alexander Alekhin
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stereosgbm.cpp modules/calib3d/src/stereosgbm.cpp +3 -1

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--- a/modules/calib3d/src/stereosgbm.cpp
+++ b/modules/calib3d/src/stereosgbm.cpp
@@ -1492,7 +1492,9 @@ static void computeDisparitySGBM_HH4( const Mat& img1, const Mat& img2,

    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);