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Added checking that z is non zero to buildWarpPlaneMaps kernel

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This commit is contained in:
Alexander Karsakov 2014-10-27 15:38:44 +03:00
parent 0aab779532
commit ebfaf4c5d8
1 changed files with 4 additions and 2 deletions
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6
modules/stitching/src/opencl/warpers.cl
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@ -73,8 +73,10 @@ __kernel void buildWarpPlaneMaps(__global uchar * xmapptr, int xmap_step, int xm
float y = fma(ck_rinv[3], x_, fma(ck_rinv[4], y_, ck_rinv[5] * ct1));
float z = fma(ck_rinv[6], x_, fma(ck_rinv[7], y_, ck_rinv[8] * ct1));
x /= z;
y /= z;
if (z != 0)
x /= z, y /= z;
else
x = y = -1;
xmap[0] = x;
ymap[0] = y;