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GPencil: Apply NanoSVG fix

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This fix is ported from official NanoSVG git
This commit is contained in:
Antonio Vazquez
2021-05-19 17:56:12 +02:00
parent 23b642cbb4
commit 857f39a3d7
1 changed files with 6 additions and 1 deletions
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7
source/blender/io/gpencil/nanosvg/nanosvg.h
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@@ -2362,7 +2362,12 @@ static void nsvg__pathArcTo(NSVGparser *p, float *cpx, float *cpy, float *args,
// The loop assumes an iteration per end point (including start and end), this +1.
ndivs = (int)(fabsf(da) / (NSVG_PI * 0.5f) + 1.0f);
hda = (da / (float)ndivs) / 2.0f;
kappa = fabsf(4.0f / 3.0f * (1.0f - cosf(hda)) / sinf(hda));
// Fix for ticket #179: division by 0: avoid cotangens around 0 (infinite)
if ((hda < 1e-3f) && (hda > -1e-3f))
hda *= 0.5f;
else
hda = (1.0f - cosf(hda)) / sinf(hda);
kappa = fabsf(4.0f / 3.0f * hda);
if (da < 0.0f)
kappa = -kappa;