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LibGfx: Fix draw_triangle() clipping calculations

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This commit is contained in:
Stephan Unverwerth 2020-04-18 13:21:32 +02:00 • committed by Andreas Kling
parent e2f0e36bdb
commit cbcf317e76
1 changed files with 4 additions and 4 deletions
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8
Libraries/LibGfx/Painter.cpp
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@ -360,8 +360,8 @@ void Painter::draw_triangle(const Point& a, const Point& b, const Point& c, Colo
int top = p0.y(); int top = p0.y();
if (top < clip.top()) { if (top < clip.top()) {
x01 += dx01 * clip.top() - top; x01 += dx01 * (clip.top() - top);
x02 += dx02 * clip.top() - top; x02 += dx02 * (clip.top() - top);
top = clip.top(); top = clip.top();
} }
@ -381,8 +381,8 @@ void Painter::draw_triangle(const Point& a, const Point& b, const Point& c, Colo
top = p1.y(); top = p1.y();
if (top < clip.top()) { if (top < clip.top()) {
x02 += dx02 * clip.top() - top; x02 += dx02 * (clip.top() - top);
x12 += dx12 * clip.top() - top; x12 += dx12 * (clip.top() - top);
top = clip.top(); top = clip.top();
} }