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Fixed #5432

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Stanislau Tsitsianok 2021-05-02 17:12:07 +03:00
parent e8f902f987
commit 0c9ffcfa14
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1 changed files with 16 additions and 0 deletions
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16
src/libImaging/Draw.c
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@ -1347,6 +1347,22 @@ pie_init(clip_ellipse_state *s, int32_t a, int32_t b, int32_t w, float al, float
s->root->l = lc; s->root->l = lc;
s->root->r = rc; s->root->r = rc;
s->root->type = ar - al < 180 ? CT_AND : CT_OR; s->root->type = ar - al < 180 ? CT_AND : CT_OR;
// add one more semiplane to avoid spikes
if (ar - al < 90) {
clip_node *old_root = s->root;
clip_node *spike_clipper = s->nodes + s->node_count++;
s->root = s->nodes + s->node_count++;
s->root->l = old_root;
s->root->r = spike_clipper;
s->root->type = CT_AND;
spike_clipper->l = spike_clipper->r = NULL;
spike_clipper->type = CT_CLIP;
spike_clipper->a = (xl + xr) / 2.0;
spike_clipper->b = (yl + yr) / 2.0;
spike_clipper->c = 0;
}
} }
void void