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Recognize more linear bezier curves

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Kovid Goyal
2024-07-17 17:41:47 +05:30
parent 39dfa75fe7
commit 9c75ea795d
2 changed files with 20 additions and 5 deletions
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12
kitty/animation.c
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@@ -194,10 +194,20 @@ init_function(Animation *a, double y_at_start, double y_at_end, easing_curve cur
return f;
}
static bool
is_bezier_linear(double p1x, double p1y, double p2x, double p2y) {
return (
(p1x == 0 && p1y == 0 && p2x == 1 && p2y == 1) ||
(p1x == 0 && p1y == 0 && p2x == 0 && p2y == 0) ||
(p1x == 1 && p1y == 1 && p2x == 1 && p2y == 1) ||
(p1x != 0 && p2x != 0 && p1y != 0 && p2y != 0 && p1y / p1x == p2y / p2x)
);
}
void
add_cubic_bezier_animation(Animation *a, double y_at_start, double y_at_end, double p1x, double p1y, double p2x, double p2y) {
p1x = unit_value(p1x); p2x = unit_value(p2x);
if (p1x == 0 && p1y == 0 && p2x == 1 && p2y == 1) {
if (is_bezier_linear(p1x, p1y, p2x, p2y)) {
init_function(a, y_at_start, y_at_end, identity_easing_curve);
return;
}