diff options
| author | Campbell Barton <ideasman42@gmail.com> | 2010-10-28 16:29:59 +0400 |
|---|---|---|
| committer | Campbell Barton <ideasman42@gmail.com> | 2010-10-28 16:29:59 +0400 |
| commit | 905c5f794866d63a1fe0183eef327184548fd85e (patch) | |
| tree | f1188b14908b97b3d6e83c1047ae1cfae97633b1 | |
| parent | 022e72e148ed5376e7c1e52f5eae70890c9f6936 (diff) | |
bugfix/patch [#24431] Fast Gaussian produces wrong results for higher resolutions
report & fix from Martin Lubich (loramel)
Use double rather then floats, this doesn't use significantly more memory (as allocating a double buffer would), other vars in this function were doubles already so may even gain some speed.
| -rw-r--r-- | source/blender/nodes/intern/CMP_util.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/source/blender/nodes/intern/CMP_util.c b/source/blender/nodes/intern/CMP_util.c index c762d8cb42d..06c4740f6b9 100644 --- a/source/blender/nodes/intern/CMP_util.c +++ b/source/blender/nodes/intern/CMP_util.c @@ -1303,7 +1303,7 @@ CompBuf* qd_downScaledCopy(CompBuf* src, int scale) void IIR_gauss(CompBuf* src, float sigma, int chan, int xy) { double q, q2, sc, cf[4], tsM[9], tsu[3], tsv[3]; - float *X, *Y, *W; + double *X, *Y, *W; int i, x, y, sz; // <0.5 not valid, though can have a possibly useful sort of sharpening effect @@ -1367,9 +1367,9 @@ void IIR_gauss(CompBuf* src, float sigma, int chan, int xy) // intermediate buffers sz = MAX2(src->x, src->y); - X = MEM_callocN(sz*sizeof(float), "IIR_gauss X buf"); - Y = MEM_callocN(sz*sizeof(float), "IIR_gauss Y buf"); - W = MEM_callocN(sz*sizeof(float), "IIR_gauss W buf"); + X = MEM_callocN(sz*sizeof(double), "IIR_gauss X buf"); + Y = MEM_callocN(sz*sizeof(double), "IIR_gauss Y buf"); + W = MEM_callocN(sz*sizeof(double), "IIR_gauss W buf"); if (xy & 1) { // H for (y=0; y<src->y; ++y) { const int yx = y*src->x; |