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port DefaultGridSampler

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This commit is contained in:
Henry Schimke
2023-03-08 14:36:43 -06:00
parent 717b74fd99
commit e1332c8010
6 changed files with 164 additions and 81 deletions
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25
src/common/perspective_transform.rs
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@@ -81,15 +81,28 @@ impl PerspectiveTransform {
Ok(s_to_q * q_to_s)
}
pub fn transform_point(&self, point: Point) -> Point {
let x = point.x;
let y = point.y;
let denominator = self.a13 * x + self.a23 * y + self.a33;
Point::new(
(self.a11 * x + self.a21 * y + self.a31) / denominator,
(self.a12 * x + self.a22 * y + self.a32) / denominator,
)
}
pub fn transform_points_single(&self, points: &mut [Point]) {
for point in points.iter_mut() {
// for (int i = 0; i < maxI; i += 2) {
let x = point.x;
let y = point.y;
let denominator = self.a13 * x + self.a23 * y + self.a33;
point.x = (self.a11 * x + self.a21 * y + self.a31) / denominator;
point.y = (self.a12 * x + self.a22 * y + self.a32) / denominator;
*point = self.transform_point(Point::new(point.x, point.y));
}
// for point in points.iter_mut() {
// // for (int i = 0; i < maxI; i += 2) {
// let x = point.x;
// let y = point.y;
// let denominator = self.a13 * x + self.a23 * y + self.a33;
// point.x = (self.a11 * x + self.a21 * y + self.a31) / denominator;
// point.y = (self.a12 * x + self.a22 * y + self.a32) / denominator;
// }
}
pub fn transform_points_double(&self, x_values: &mut [f32], y_valuess: &mut [f32]) {