pathfinder/geometry/src/point.rs

// pathfinder/geometry/src/point.rs
//
// Copyright © 2019 The Pathfinder Project Developers.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

//! A SIMD-optimized point type.

use crate::SimdImpl;
use euclid::Point2D;
use simdeez::Simd;
use std::ops::{Add, Mul, Sub};

#[derive(Clone, Copy, Debug)]
pub struct Point2DF32(pub <SimdImpl as Simd>::Vf32);

impl Point2DF32 {
    #[inline]
    pub fn new(x: f32, y: f32) -> Point2DF32 {
        unsafe {
            let mut data = SimdImpl::setzero_ps();
            data[0] = x;
            data[1] = y;
            Point2DF32(data)
        }
    }

    #[inline]
    pub fn splat(value: f32) -> Point2DF32 {
        unsafe { Point2DF32(SimdImpl::set1_ps(value)) }
    }

    #[inline]
    pub fn from_euclid(point: Point2D<f32>) -> Point2DF32 {
        Point2DF32::new(point.x, point.y)
    }

    #[inline]
    pub fn as_euclid(&self) -> Point2D<f32> {
        Point2D::new(self.0[0], self.0[1])
    }

    #[inline]
    pub fn x(&self) -> f32 {
        self.0[0]
    }

    #[inline]
    pub fn y(&self) -> f32 {
        self.0[1]
    }

    #[inline]
    pub fn min(&self, other: Point2DF32) -> Point2DF32 {
        unsafe { Point2DF32(SimdImpl::min_ps(self.0, other.0)) }
    }

    #[inline]
    pub fn max(&self, other: Point2DF32) -> Point2DF32 {
        unsafe { Point2DF32(SimdImpl::max_ps(self.0, other.0)) }
    }
}

impl PartialEq for Point2DF32 {
    #[inline]
    fn eq(&self, other: &Point2DF32) -> bool {
        unsafe {
            let results = SimdImpl::castps_epi32(SimdImpl::cmpeq_ps(self.0, other.0));
            results[0] == -1 && results[1] == -1
        }
    }
}

impl Default for Point2DF32 {
    #[inline]
    fn default() -> Point2DF32 {
        unsafe { Point2DF32(SimdImpl::setzero_ps()) }
    }
}

impl Add<Point2DF32> for Point2DF32 {
    type Output = Point2DF32;
    #[inline]
    fn add(self, other: Point2DF32) -> Point2DF32 {
        Point2DF32(self.0 + other.0)
    }
}

impl Sub<Point2DF32> for Point2DF32 {
    type Output = Point2DF32;
    #[inline]
    fn sub(self, other: Point2DF32) -> Point2DF32 {
        Point2DF32(self.0 - other.0)
    }
}

impl Mul<Point2DF32> for Point2DF32 {
    type Output = Point2DF32;
    #[inline]
    fn mul(self, other: Point2DF32) -> Point2DF32 {
        Point2DF32(self.0 * other.0)
    }
}