mirror of
https://github.com/mozilla/gecko-dev.git
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No bug - Revendor rust dependencies
--HG-- rename : third_party/rust/euclid/src/scale_factor.rs => third_party/rust/euclid-0.15.5/src/scale_factor.rs
This commit is contained in:
parent
a869d43078
commit
d6368e66de
1
third_party/rust/app_units-0.5.6/.cargo-checksum.json
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third_party/rust/app_units-0.5.6/.cargo-checksum.json
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{"files":{".travis.yml":"6b96b2c6bfd7e1acef4b825a2813fc4277859eb9400a16800db8835c25e4087d","Cargo.toml":"41d47153a6043d3e4599f827888e1ac43c204e52ed5f6998b1e275fcae21a3cc","README.md":"9f048d969f9f8333cdcdb892744cd0816e4f2922c8817fa5e9e07f9472fe1050","src/app_unit.rs":"0f4fde2c0481b6dd021f48c8ef548090e7c577c02c429c41626c2b5e7a006949","src/lib.rs":"2df7d863c47d8b22f9af66caeafa87e6a206ee713a8aeaa55c5a80a42a92513b"},"package":"ed0a4de09a3b8449515e649f3bb84f72ea15fc2d10639beb0776a09b7d308074"}
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8
third_party/rust/app_units-0.5.6/.travis.yml
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third_party/rust/app_units-0.5.6/.travis.yml
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language: rust
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notifications:
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webhooks: http://build.servo.org:54856/travis
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rust:
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- stable
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- beta
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- nightly
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31
third_party/rust/app_units-0.5.6/Cargo.toml
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31
third_party/rust/app_units-0.5.6/Cargo.toml
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# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
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#
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# When uploading crates to the registry Cargo will automatically
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# "normalize" Cargo.toml files for maximal compatibility
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# with all versions of Cargo and also rewrite `path` dependencies
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# to registry (e.g. crates.io) dependencies
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#
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# If you believe there's an error in this file please file an
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# issue against the rust-lang/cargo repository. If you're
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# editing this file be aware that the upstream Cargo.toml
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# will likely look very different (and much more reasonable)
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[package]
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name = "app_units"
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version = "0.5.6"
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authors = ["The Servo Project Developers"]
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description = "Servo app units type (Au)"
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documentation = "http://doc.servo.org/app_units/"
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license = "MPL-2.0"
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repository = "https://github.com/servo/app_units"
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[dependencies.rustc-serialize]
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version = "0.3"
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[dependencies.num-traits]
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version = "0.1.32"
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[dependencies.heapsize]
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version = ">=0.3, < 0.5"
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[dependencies.serde]
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version = "1.0"
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3
third_party/rust/app_units-0.5.6/README.md
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3
third_party/rust/app_units-0.5.6/README.md
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# app-units
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[Documentation](http://doc.servo.org/app_units/index.html)
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388
third_party/rust/app_units-0.5.6/src/app_unit.rs
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388
third_party/rust/app_units-0.5.6/src/app_unit.rs
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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use heapsize::HeapSizeOf;
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use num_traits::Zero;
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use rustc_serialize::{Encodable, Encoder};
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use serde::de::{Deserialize, Deserializer};
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use serde::ser::{Serialize, Serializer};
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use std::default::Default;
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use std::fmt;
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use std::i32;
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use std::ops::{Add, AddAssign, Div, DivAssign, Mul, MulAssign, Neg, Rem, Sub, SubAssign};
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/// The number of app units in a pixel.
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pub const AU_PER_PX: i32 = 60;
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#[derive(Clone, Copy, Hash, PartialEq, PartialOrd, Eq, Ord)]
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/// An App Unit, the fundamental unit of length in Servo. Usually
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/// 1/60th of a pixel (see AU_PER_PX)
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///
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/// Please ensure that the values are between MIN_AU and MAX_AU.
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/// It is safe to construct invalid Au values, but it may lead to
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/// panics and overflows.
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pub struct Au(pub i32);
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impl HeapSizeOf for Au {
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fn heap_size_of_children(&self) -> usize { 0 }
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}
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impl<'de> Deserialize<'de> for Au {
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fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Au, D::Error> {
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Ok(Au(try!(i32::deserialize(deserializer))).clamp())
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}
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}
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impl Serialize for Au {
|
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fn serialize<S: Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
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self.0.serialize(serializer)
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}
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}
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impl Default for Au {
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#[inline]
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fn default() -> Au {
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Au(0)
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}
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}
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impl Zero for Au {
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#[inline]
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fn zero() -> Au {
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Au(0)
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}
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#[inline]
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fn is_zero(&self) -> bool {
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self.0 == 0
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}
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}
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// (1 << 30) - 1 lets us add/subtract two Au and check for overflow
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// after the operation. Gecko uses the same min/max values
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pub const MAX_AU: Au = Au((1 << 30) - 1);
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pub const MIN_AU: Au = Au(- ((1 << 30) - 1));
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impl Encodable for Au {
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fn encode<S: Encoder>(&self, e: &mut S) -> Result<(), S::Error> {
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e.emit_f64(self.to_f64_px())
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}
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}
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impl fmt::Debug for Au {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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write!(f, "{}px", self.to_f64_px())
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}
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}
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impl Add for Au {
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type Output = Au;
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#[inline]
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fn add(self, other: Au) -> Au {
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Au(self.0 + other.0).clamp()
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}
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}
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impl Sub for Au {
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type Output = Au;
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#[inline]
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fn sub(self, other: Au) -> Au {
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Au(self.0 - other.0).clamp()
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}
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}
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impl Mul<i32> for Au {
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type Output = Au;
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#[inline]
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fn mul(self, other: i32) -> Au {
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if let Some(new) = self.0.checked_mul(other) {
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Au(new).clamp()
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} else if (self.0 > 0) ^ (other > 0) {
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MIN_AU
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} else {
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MAX_AU
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}
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}
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}
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impl Div<i32> for Au {
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type Output = Au;
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#[inline]
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fn div(self, other: i32) -> Au {
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Au(self.0 / other)
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}
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}
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impl Rem<i32> for Au {
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type Output = Au;
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#[inline]
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fn rem(self, other: i32) -> Au {
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Au(self.0 % other)
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}
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}
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impl Neg for Au {
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type Output = Au;
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#[inline]
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fn neg(self) -> Au {
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Au(-self.0)
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}
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}
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impl AddAssign for Au {
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#[inline]
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fn add_assign(&mut self, other: Au) {
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*self = *self + other;
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self.clamp_self();
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}
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}
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impl SubAssign for Au {
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#[inline]
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fn sub_assign(&mut self, other: Au) {
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*self = *self - other;
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self.clamp_self();
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}
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}
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impl MulAssign<i32> for Au {
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#[inline]
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fn mul_assign(&mut self, other: i32) {
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*self = *self * other;
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self.clamp_self();
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}
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}
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impl DivAssign<i32> for Au {
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#[inline]
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fn div_assign(&mut self, other: i32) {
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*self = *self / other;
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self.clamp_self();
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}
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}
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impl Au {
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/// FIXME(pcwalton): Workaround for lack of cross crate inlining of newtype structs!
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#[inline]
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pub fn new(value: i32) -> Au {
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Au(value).clamp()
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}
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#[inline]
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fn clamp(self) -> Self {
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if self.0 > MAX_AU.0 {
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MAX_AU
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} else if self.0 < MIN_AU.0 {
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MIN_AU
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} else {
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self
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}
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}
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#[inline]
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fn clamp_self(&mut self) {
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*self = Au::clamp(*self)
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}
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#[inline]
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pub fn scale_by(self, factor: f32) -> Au {
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let new_float = ((self.0 as f64) * factor as f64).round();
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Au::from_f64_au(new_float)
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}
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#[inline]
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/// Scale, but truncate (useful for viewport-relative units)
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pub fn scale_by_trunc(self, factor: f32) -> Au {
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let new_float = ((self.0 as f64) * factor as f64).trunc();
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Au::from_f64_au(new_float)
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}
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#[inline]
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pub fn from_f64_au(float: f64) -> Self {
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// We *must* operate in f64. f32 isn't precise enough
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// to handle MAX_AU
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Au(float.min(MAX_AU.0 as f64)
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.max(MIN_AU.0 as f64)
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as i32)
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}
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#[inline]
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pub fn from_px(px: i32) -> Au {
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Au(px) * AU_PER_PX
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}
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/// Rounds this app unit down to the pixel towards zero and returns it.
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#[inline]
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pub fn to_px(self) -> i32 {
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self.0 / AU_PER_PX
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}
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/// Ceil this app unit to the appropriate pixel boundary and return it.
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#[inline]
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pub fn ceil_to_px(self) -> i32 {
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((self.0 as f64) / (AU_PER_PX as f64)).ceil() as i32
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}
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#[inline]
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pub fn to_nearest_px(self) -> i32 {
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((self.0 as f64) / (AU_PER_PX as f64)).round() as i32
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}
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#[inline]
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pub fn to_nearest_pixel(self, pixels_per_px: f32) -> f32 {
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((self.0 as f32) / (AU_PER_PX as f32) * pixels_per_px).round() / pixels_per_px
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}
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#[inline]
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pub fn to_f32_px(self) -> f32 {
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(self.0 as f32) / (AU_PER_PX as f32)
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}
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#[inline]
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pub fn to_f64_px(self) -> f64 {
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(self.0 as f64) / (AU_PER_PX as f64)
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}
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#[inline]
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pub fn from_f32_px(px: f32) -> Au {
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let float = (px * AU_PER_PX as f32).round();
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Au::from_f64_au(float as f64)
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}
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#[inline]
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pub fn from_f64_px(px: f64) -> Au {
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let float = (px * AU_PER_PX as f64).round();
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Au::from_f64_au(float)
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}
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#[inline]
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pub fn abs(self) -> Self {
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Au(self.0.abs())
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}
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}
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#[test]
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fn create() {
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assert_eq!(Au::zero(), Au(0));
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assert_eq!(Au::default(), Au(0));
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assert_eq!(Au::new(7), Au(7));
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}
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#[test]
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fn operations() {
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assert_eq!(Au(7) + Au(5), Au(12));
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assert_eq!(MAX_AU + Au(1), MAX_AU);
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assert_eq!(Au(7) - Au(5), Au(2));
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assert_eq!(MIN_AU - Au(1), MIN_AU);
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assert_eq!(Au(7) * 5, Au(35));
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assert_eq!(MAX_AU * -1, MIN_AU);
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assert_eq!(MIN_AU * -1, MAX_AU);
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assert_eq!(Au(35) / 5, Au(7));
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assert_eq!(Au(35) % 6, Au(5));
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assert_eq!(-Au(7), Au(-7));
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}
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#[test]
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fn saturate() {
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let half = MAX_AU / 2;
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assert_eq!(half + half + half + half + half, MAX_AU);
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assert_eq!(-half - half - half - half - half, MIN_AU);
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assert_eq!(half * -10, MIN_AU);
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assert_eq!(-half * 10, MIN_AU);
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assert_eq!(half * 10, MAX_AU);
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assert_eq!(-half * -10, MAX_AU);
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}
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#[test]
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fn scale() {
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assert_eq!(Au(12).scale_by(1.5), Au(18));
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assert_eq!(Au(12).scale_by(1.7), Au(20));
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assert_eq!(Au(12).scale_by(1.8), Au(22));
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assert_eq!(Au(12).scale_by_trunc(1.8), Au(21));
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}
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|
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#[test]
|
||||
fn abs() {
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||||
assert_eq!(Au(-10).abs(), Au(10));
|
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}
|
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|
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#[test]
|
||||
fn convert() {
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||||
assert_eq!(Au::from_px(5), Au(300));
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|
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assert_eq!(Au(300).to_px(), 5);
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||||
assert_eq!(Au(330).to_px(), 5);
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||||
assert_eq!(Au(350).to_px(), 5);
|
||||
assert_eq!(Au(360).to_px(), 6);
|
||||
|
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assert_eq!(Au(300).ceil_to_px(), 5);
|
||||
assert_eq!(Au(310).ceil_to_px(), 6);
|
||||
assert_eq!(Au(330).ceil_to_px(), 6);
|
||||
assert_eq!(Au(350).ceil_to_px(), 6);
|
||||
assert_eq!(Au(360).ceil_to_px(), 6);
|
||||
|
||||
assert_eq!(Au(300).to_nearest_px(), 5);
|
||||
assert_eq!(Au(310).to_nearest_px(), 5);
|
||||
assert_eq!(Au(330).to_nearest_px(), 6);
|
||||
assert_eq!(Au(350).to_nearest_px(), 6);
|
||||
assert_eq!(Au(360).to_nearest_px(), 6);
|
||||
|
||||
assert_eq!(Au(60).to_nearest_pixel(2.), 1.);
|
||||
assert_eq!(Au(70).to_nearest_pixel(2.), 1.);
|
||||
assert_eq!(Au(80).to_nearest_pixel(2.), 1.5);
|
||||
assert_eq!(Au(90).to_nearest_pixel(2.), 1.5);
|
||||
assert_eq!(Au(100).to_nearest_pixel(2.), 1.5);
|
||||
assert_eq!(Au(110).to_nearest_pixel(2.), 2.);
|
||||
assert_eq!(Au(120).to_nearest_pixel(2.), 2.);
|
||||
|
||||
assert_eq!(Au(300).to_f32_px(), 5.);
|
||||
assert_eq!(Au(312).to_f32_px(), 5.2);
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||||
assert_eq!(Au(330).to_f32_px(), 5.5);
|
||||
assert_eq!(Au(348).to_f32_px(), 5.8);
|
||||
assert_eq!(Au(360).to_f32_px(), 6.);
|
||||
assert_eq!((Au(367).to_f32_px() * 1000.).round(), 6_117.);
|
||||
assert_eq!((Au(368).to_f32_px() * 1000.).round(), 6_133.);
|
||||
|
||||
assert_eq!(Au(300).to_f64_px(), 5.);
|
||||
assert_eq!(Au(312).to_f64_px(), 5.2);
|
||||
assert_eq!(Au(330).to_f64_px(), 5.5);
|
||||
assert_eq!(Au(348).to_f64_px(), 5.8);
|
||||
assert_eq!(Au(360).to_f64_px(), 6.);
|
||||
assert_eq!((Au(367).to_f64_px() * 1000.).round(), 6_117.);
|
||||
assert_eq!((Au(368).to_f64_px() * 1000.).round(), 6_133.);
|
||||
|
||||
assert_eq!(Au::from_f32_px(5.), Au(300));
|
||||
assert_eq!(Au::from_f32_px(5.2), Au(312));
|
||||
assert_eq!(Au::from_f32_px(5.5), Au(330));
|
||||
assert_eq!(Au::from_f32_px(5.8), Au(348));
|
||||
assert_eq!(Au::from_f32_px(6.), Au(360));
|
||||
assert_eq!(Au::from_f32_px(6.12), Au(367));
|
||||
assert_eq!(Au::from_f32_px(6.13), Au(368));
|
||||
|
||||
assert_eq!(Au::from_f64_px(5.), Au(300));
|
||||
assert_eq!(Au::from_f64_px(5.2), Au(312));
|
||||
assert_eq!(Au::from_f64_px(5.5), Au(330));
|
||||
assert_eq!(Au::from_f64_px(5.8), Au(348));
|
||||
assert_eq!(Au::from_f64_px(6.), Au(360));
|
||||
assert_eq!(Au::from_f64_px(6.12), Au(367));
|
||||
assert_eq!(Au::from_f64_px(6.13), Au(368));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn heapsize() {
|
||||
use heapsize::HeapSizeOf;
|
||||
fn f<T: HeapSizeOf>(_: T) {}
|
||||
f(Au::new(0));
|
||||
}
|
16
third_party/rust/app_units-0.5.6/src/lib.rs
vendored
Normal file
16
third_party/rust/app_units-0.5.6/src/lib.rs
vendored
Normal file
@ -0,0 +1,16 @@
|
||||
/* This Source Code Form is subject to the terms of the Mozilla Public
|
||||
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
||||
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
||||
|
||||
//! An Au is an "App Unit" and represents 1/60th of a CSS pixel. It was
|
||||
//! originally proposed in 2002 as a standard unit of measure in Gecko.
|
||||
//! See https://bugzilla.mozilla.org/show_bug.cgi?id=177805 for more info.
|
||||
|
||||
extern crate heapsize;
|
||||
extern crate num_traits;
|
||||
extern crate rustc_serialize;
|
||||
extern crate serde;
|
||||
|
||||
mod app_unit;
|
||||
|
||||
pub use app_unit::{Au, MIN_AU, MAX_AU, AU_PER_PX};
|
@ -1 +1 @@
|
||||
{"files":{".travis.yml":"6b96b2c6bfd7e1acef4b825a2813fc4277859eb9400a16800db8835c25e4087d","Cargo.toml":"41d47153a6043d3e4599f827888e1ac43c204e52ed5f6998b1e275fcae21a3cc","README.md":"9f048d969f9f8333cdcdb892744cd0816e4f2922c8817fa5e9e07f9472fe1050","src/app_unit.rs":"0f4fde2c0481b6dd021f48c8ef548090e7c577c02c429c41626c2b5e7a006949","src/lib.rs":"2df7d863c47d8b22f9af66caeafa87e6a206ee713a8aeaa55c5a80a42a92513b"},"package":"ed0a4de09a3b8449515e649f3bb84f72ea15fc2d10639beb0776a09b7d308074"}
|
||||
{"files":{".travis.yml":"6b96b2c6bfd7e1acef4b825a2813fc4277859eb9400a16800db8835c25e4087d","Cargo.toml":"e57a15878e84c4628d1ed9cb2db5d6d255eb49f26216dbc46f8912bbdfcfd4b2","README.md":"9f048d969f9f8333cdcdb892744cd0816e4f2922c8817fa5e9e07f9472fe1050","src/app_unit.rs":"bc6bc0f5063bf27c27a84a931b51ee1e4930550af84a4351c1eed81f88f13f00","src/lib.rs":"ed615683418d93046fedb019baf87513c8c490203099144c298bb48e845137b2"},"package":"29069a9b483f7780aebb55dafb360c6225eefdc1f98c8d336a65148fd10c37b1"}
|
8
third_party/rust/app_units/Cargo.toml
vendored
8
third_party/rust/app_units/Cargo.toml
vendored
@ -12,20 +12,14 @@
|
||||
|
||||
[package]
|
||||
name = "app_units"
|
||||
version = "0.5.6"
|
||||
version = "0.6.0"
|
||||
authors = ["The Servo Project Developers"]
|
||||
description = "Servo app units type (Au)"
|
||||
documentation = "http://doc.servo.org/app_units/"
|
||||
license = "MPL-2.0"
|
||||
repository = "https://github.com/servo/app_units"
|
||||
[dependencies.rustc-serialize]
|
||||
version = "0.3"
|
||||
|
||||
[dependencies.num-traits]
|
||||
version = "0.1.32"
|
||||
|
||||
[dependencies.heapsize]
|
||||
version = ">=0.3, < 0.5"
|
||||
|
||||
[dependencies.serde]
|
||||
version = "1.0"
|
||||
|
19
third_party/rust/app_units/src/app_unit.rs
vendored
19
third_party/rust/app_units/src/app_unit.rs
vendored
@ -2,9 +2,7 @@
|
||||
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
||||
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
||||
|
||||
use heapsize::HeapSizeOf;
|
||||
use num_traits::Zero;
|
||||
use rustc_serialize::{Encodable, Encoder};
|
||||
use serde::de::{Deserialize, Deserializer};
|
||||
use serde::ser::{Serialize, Serializer};
|
||||
use std::default::Default;
|
||||
@ -24,10 +22,6 @@ pub const AU_PER_PX: i32 = 60;
|
||||
/// panics and overflows.
|
||||
pub struct Au(pub i32);
|
||||
|
||||
impl HeapSizeOf for Au {
|
||||
fn heap_size_of_children(&self) -> usize { 0 }
|
||||
}
|
||||
|
||||
impl<'de> Deserialize<'de> for Au {
|
||||
fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Au, D::Error> {
|
||||
Ok(Au(try!(i32::deserialize(deserializer))).clamp())
|
||||
@ -64,12 +58,6 @@ impl Zero for Au {
|
||||
pub const MAX_AU: Au = Au((1 << 30) - 1);
|
||||
pub const MIN_AU: Au = Au(- ((1 << 30) - 1));
|
||||
|
||||
impl Encodable for Au {
|
||||
fn encode<S: Encoder>(&self, e: &mut S) -> Result<(), S::Error> {
|
||||
e.emit_f64(self.to_f64_px())
|
||||
}
|
||||
}
|
||||
|
||||
impl fmt::Debug for Au {
|
||||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||
write!(f, "{}px", self.to_f64_px())
|
||||
@ -379,10 +367,3 @@ fn convert() {
|
||||
assert_eq!(Au::from_f64_px(6.12), Au(367));
|
||||
assert_eq!(Au::from_f64_px(6.13), Au(368));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn heapsize() {
|
||||
use heapsize::HeapSizeOf;
|
||||
fn f<T: HeapSizeOf>(_: T) {}
|
||||
f(Au::new(0));
|
||||
}
|
||||
|
4
third_party/rust/app_units/src/lib.rs
vendored
4
third_party/rust/app_units/src/lib.rs
vendored
@ -4,11 +4,9 @@
|
||||
|
||||
//! An Au is an "App Unit" and represents 1/60th of a CSS pixel. It was
|
||||
//! originally proposed in 2002 as a standard unit of measure in Gecko.
|
||||
//! See https://bugzilla.mozilla.org/show_bug.cgi?id=177805 for more info.
|
||||
//! See <https://bugzilla.mozilla.org/show_bug.cgi?id=177805> for more info.
|
||||
|
||||
extern crate heapsize;
|
||||
extern crate num_traits;
|
||||
extern crate rustc_serialize;
|
||||
extern crate serde;
|
||||
|
||||
mod app_unit;
|
||||
|
1
third_party/rust/euclid-0.15.5/.cargo-checksum.json
vendored
Normal file
1
third_party/rust/euclid-0.15.5/.cargo-checksum.json
vendored
Normal file
@ -0,0 +1 @@
|
||||
{"files":{".travis.yml":"13574ca06216b94913348afb2beae9db9929f8964fbc45b3c00344ee281e1f52","COPYRIGHT":"ec82b96487e9e778ee610c7ab245162464782cfa1f555c2299333f8dbe5c036a","Cargo.toml":"1951103509b9ee4036df52e5f11c9d1e2ba18c09eab673de25c37ad1f6dabab4","LICENSE-APACHE":"a60eea817514531668d7e00765731449fe14d059d3249e0bc93b36de45f759f2","LICENSE-MIT":"62065228e42caebca7e7d7db1204cbb867033de5982ca4009928915e4095f3a3","README.md":"625bec69c76ce5423fdd05cfe46922b2680ec517f97c5854ce34798d1d8a9541","src/approxeq.rs":"6cf810ad389c73a27141a7a67454ed12d4b01c3c16605b9a7414b389bc0615dd","src/length.rs":"73b0aed12a0c9acfd77a6b9ac0cd3a7ec522c41ffafad4448753cb6bba47b6a4","src/lib.rs":"43b594eebf1cd2c8fb7a7f4616d872d9e09f5e0c7c0172a16d4e5841ab552328","src/macros.rs":"a3f4deaa4323da6398546720548dda20b0b39427603ccc35ab49d220a83467a8","src/num.rs":"749b201289fc6663199160a2f9204e17925fd3053f8ab7779e7bfb377ad06227","src/point.rs":"859e3da88bf45123b10d90642b807b9ef35751699594d85012cb32b45e9e970b","src/rect.rs":"761b3e1c841c03ec87e99ed9dd9c37d669bec6967c2dac2b6be2f056e9c8b7e0","src/rotation.rs":"0b0a299268a76fbc15c58aec788ad0bfc27f7f68bcfeade3dce71cd2585166f2","src/scale_factor.rs":"b093243256df3f2b8a2e2bf98236e6ec1032c3d358596f384313614dbefaca49","src/side_offsets.rs":"fd95ffc9a74e9e84314875c388e763d0780486eb7f9034423e3a22048361e379","src/size.rs":"5ecb66be6c42f07770662c925017a7ef6e1d0e332b3576e1884c488fbf9d4b59","src/transform2d.rs":"82b5a41881fc4ab947df0b337ad2ac2e1dce7d532df1a225eb5abf2d32776007","src/transform3d.rs":"3b944cae37968b3c4e98a25323ac57ba331d97638b0a747fff28f139fcb6043c","src/trig.rs":"ef290927af252ca90a29ba9f17158b591ed591604e66cb9df045dd47b9cfdca5","src/vector.rs":"7f076e77a9a6fbecf44c1802233e9c2d59015a94cccf94fd9d8832cfb037bdb8"},"package":"f5ed7d77e46f6600f490463ad7b6349c3ebb2d2319af56e679e279e4c66495d9"}
|
24
third_party/rust/euclid-0.15.5/.travis.yml
vendored
Normal file
24
third_party/rust/euclid-0.15.5/.travis.yml
vendored
Normal file
@ -0,0 +1,24 @@
|
||||
language: rust
|
||||
rust:
|
||||
- 1.17.0
|
||||
- stable
|
||||
- beta
|
||||
- nightly
|
||||
|
||||
notifications:
|
||||
webhooks: http://build.servo.org:54856/travis
|
||||
|
||||
matrix:
|
||||
include:
|
||||
- rust: stable
|
||||
env: FEATURES=""
|
||||
- rust: beta
|
||||
env: FEATURES=""
|
||||
- rust: nightly
|
||||
env: FEATURES=""
|
||||
- rust: nightly
|
||||
env: FEATURES="unstable"
|
||||
|
||||
script:
|
||||
- cargo build --verbose --features "$FEATURES"
|
||||
- cargo test --verbose --features "$FEATURES"
|
5
third_party/rust/euclid-0.15.5/COPYRIGHT
vendored
Normal file
5
third_party/rust/euclid-0.15.5/COPYRIGHT
vendored
Normal file
@ -0,0 +1,5 @@
|
||||
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. All files in the project carrying such notice may not be
|
||||
copied, modified, or distributed except according to those terms.
|
42
third_party/rust/euclid-0.15.5/Cargo.toml
vendored
Normal file
42
third_party/rust/euclid-0.15.5/Cargo.toml
vendored
Normal file
@ -0,0 +1,42 @@
|
||||
# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
|
||||
#
|
||||
# When uploading crates to the registry Cargo will automatically
|
||||
# "normalize" Cargo.toml files for maximal compatibility
|
||||
# with all versions of Cargo and also rewrite `path` dependencies
|
||||
# to registry (e.g. crates.io) dependencies
|
||||
#
|
||||
# If you believe there's an error in this file please file an
|
||||
# issue against the rust-lang/cargo repository. If you're
|
||||
# editing this file be aware that the upstream Cargo.toml
|
||||
# will likely look very different (and much more reasonable)
|
||||
|
||||
[package]
|
||||
name = "euclid"
|
||||
version = "0.15.5"
|
||||
authors = ["The Servo Project Developers"]
|
||||
description = "Geometry primitives"
|
||||
documentation = "https://docs.rs/euclid/"
|
||||
keywords = ["matrix", "vector", "linear-algebra", "geometry"]
|
||||
categories = ["science"]
|
||||
license = "MIT / Apache-2.0"
|
||||
repository = "https://github.com/servo/euclid"
|
||||
[dependencies.heapsize]
|
||||
version = "0.4"
|
||||
|
||||
[dependencies.num-traits]
|
||||
version = "0.1.32"
|
||||
default-features = false
|
||||
|
||||
[dependencies.log]
|
||||
version = "0.3.1"
|
||||
|
||||
[dependencies.serde]
|
||||
version = "1.0"
|
||||
[dev-dependencies.serde_test]
|
||||
version = "1.0"
|
||||
|
||||
[dev-dependencies.rand]
|
||||
version = "0.3.7"
|
||||
|
||||
[features]
|
||||
unstable = []
|
201
third_party/rust/euclid-0.15.5/LICENSE-APACHE
vendored
Normal file
201
third_party/rust/euclid-0.15.5/LICENSE-APACHE
vendored
Normal file
@ -0,0 +1,201 @@
|
||||
Apache License
|
||||
Version 2.0, January 2004
|
||||
http://www.apache.org/licenses/
|
||||
|
||||
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
|
||||
|
||||
1. Definitions.
|
||||
|
||||
"License" shall mean the terms and conditions for use, reproduction,
|
||||
and distribution as defined by Sections 1 through 9 of this document.
|
||||
|
||||
"Licensor" shall mean the copyright owner or entity authorized by
|
||||
the copyright owner that is granting the License.
|
||||
|
||||
"Legal Entity" shall mean the union of the acting entity and all
|
||||
other entities that control, are controlled by, or are under common
|
||||
control with that entity. For the purposes of this definition,
|
||||
"control" means (i) the power, direct or indirect, to cause the
|
||||
direction or management of such entity, whether by contract or
|
||||
otherwise, or (ii) ownership of fifty percent (50%) or more of the
|
||||
outstanding shares, or (iii) beneficial ownership of such entity.
|
||||
|
||||
"You" (or "Your") shall mean an individual or Legal Entity
|
||||
exercising permissions granted by this License.
|
||||
|
||||
"Source" form shall mean the preferred form for making modifications,
|
||||
including but not limited to software source code, documentation
|
||||
source, and configuration files.
|
||||
|
||||
"Object" form shall mean any form resulting from mechanical
|
||||
transformation or translation of a Source form, including but
|
||||
not limited to compiled object code, generated documentation,
|
||||
and conversions to other media types.
|
||||
|
||||
"Work" shall mean the work of authorship, whether in Source or
|
||||
Object form, made available under the License, as indicated by a
|
||||
copyright notice that is included in or attached to the work
|
||||
(an example is provided in the Appendix below).
|
||||
|
||||
"Derivative Works" shall mean any work, whether in Source or Object
|
||||
form, that is based on (or derived from) the Work and for which the
|
||||
editorial revisions, annotations, elaborations, or other modifications
|
||||
represent, as a whole, an original work of authorship. For the purposes
|
||||
of this License, Derivative Works shall not include works that remain
|
||||
separable from, or merely link (or bind by name) to the interfaces of,
|
||||
the Work and Derivative Works thereof.
|
||||
|
||||
"Contribution" shall mean any work of authorship, including
|
||||
the original version of the Work and any modifications or additions
|
||||
to that Work or Derivative Works thereof, that is intentionally
|
||||
submitted to Licensor for inclusion in the Work by the copyright owner
|
||||
or by an individual or Legal Entity authorized to submit on behalf of
|
||||
the copyright owner. For the purposes of this definition, "submitted"
|
||||
means any form of electronic, verbal, or written communication sent
|
||||
to the Licensor or its representatives, including but not limited to
|
||||
communication on electronic mailing lists, source code control systems,
|
||||
and issue tracking systems that are managed by, or on behalf of, the
|
||||
Licensor for the purpose of discussing and improving the Work, but
|
||||
excluding communication that is conspicuously marked or otherwise
|
||||
designated in writing by the copyright owner as "Not a Contribution."
|
||||
|
||||
"Contributor" shall mean Licensor and any individual or Legal Entity
|
||||
on behalf of whom a Contribution has been received by Licensor and
|
||||
subsequently incorporated within the Work.
|
||||
|
||||
2. Grant of Copyright License. Subject to the terms and conditions of
|
||||
this License, each Contributor hereby grants to You a perpetual,
|
||||
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
|
||||
copyright license to reproduce, prepare Derivative Works of,
|
||||
publicly display, publicly perform, sublicense, and distribute the
|
||||
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|
||||
|
||||
3. Grant of Patent License. Subject to the terms and conditions of
|
||||
this License, each Contributor hereby grants to You a perpetual,
|
||||
worldwide, non-exclusive, no-charge, royalty-free, irrevocable
|
||||
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|
||||
use, offer to sell, sell, import, and otherwise transfer the Work,
|
||||
where such license applies only to those patent claims licensable
|
||||
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|
||||
Contribution(s) alone or by combination of their Contribution(s)
|
||||
with the Work to which such Contribution(s) was submitted. If You
|
||||
institute patent litigation against any entity (including a
|
||||
cross-claim or counterclaim in a lawsuit) alleging that the Work
|
||||
or a Contribution incorporated within the Work constitutes direct
|
||||
or contributory patent infringement, then any patent licenses
|
||||
granted to You under this License for that Work shall terminate
|
||||
as of the date such litigation is filed.
|
||||
|
||||
4. Redistribution. You may reproduce and distribute copies of the
|
||||
Work or Derivative Works thereof in any medium, with or without
|
||||
modifications, and in Source or Object form, provided that You
|
||||
meet the following conditions:
|
||||
|
||||
(a) You must give any other recipients of the Work or
|
||||
Derivative Works a copy of this License; and
|
||||
|
||||
(b) You must cause any modified files to carry prominent notices
|
||||
stating that You changed the files; and
|
||||
|
||||
(c) You must retain, in the Source form of any Derivative Works
|
||||
that You distribute, all copyright, patent, trademark, and
|
||||
attribution notices from the Source form of the Work,
|
||||
excluding those notices that do not pertain to any part of
|
||||
the Derivative Works; and
|
||||
|
||||
(d) If the Work includes a "NOTICE" text file as part of its
|
||||
distribution, then any Derivative Works that You distribute must
|
||||
include a readable copy of the attribution notices contained
|
||||
within such NOTICE file, excluding those notices that do not
|
||||
pertain to any part of the Derivative Works, in at least one
|
||||
of the following places: within a NOTICE text file distributed
|
||||
as part of the Derivative Works; within the Source form or
|
||||
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|
||||
within a display generated by the Derivative Works, if and
|
||||
wherever such third-party notices normally appear. The contents
|
||||
of the NOTICE file are for informational purposes only and
|
||||
do not modify the License. You may add Your own attribution
|
||||
notices within Derivative Works that You distribute, alongside
|
||||
or as an addendum to the NOTICE text from the Work, provided
|
||||
that such additional attribution notices cannot be construed
|
||||
as modifying the License.
|
||||
|
||||
You may add Your own copyright statement to Your modifications and
|
||||
may provide additional or different license terms and conditions
|
||||
for use, reproduction, or distribution of Your modifications, or
|
||||
for any such Derivative Works as a whole, provided Your use,
|
||||
reproduction, and distribution of the Work otherwise complies with
|
||||
the conditions stated in this License.
|
||||
|
||||
5. Submission of Contributions. Unless You explicitly state otherwise,
|
||||
any Contribution intentionally submitted for inclusion in the Work
|
||||
by You to the Licensor shall be under the terms and conditions of
|
||||
this License, without any additional terms or conditions.
|
||||
Notwithstanding the above, nothing herein shall supersede or modify
|
||||
the terms of any separate license agreement you may have executed
|
||||
with Licensor regarding such Contributions.
|
||||
|
||||
6. Trademarks. This License does not grant permission to use the trade
|
||||
names, trademarks, service marks, or product names of the Licensor,
|
||||
except as required for reasonable and customary use in describing the
|
||||
origin of the Work and reproducing the content of the NOTICE file.
|
||||
|
||||
7. Disclaimer of Warranty. Unless required by applicable law or
|
||||
agreed to in writing, Licensor provides the Work (and each
|
||||
Contributor provides its Contributions) on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
|
||||
implied, including, without limitation, any warranties or conditions
|
||||
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
|
||||
PARTICULAR PURPOSE. You are solely responsible for determining the
|
||||
appropriateness of using or redistributing the Work and assume any
|
||||
risks associated with Your exercise of permissions under this License.
|
||||
|
||||
8. Limitation of Liability. In no event and under no legal theory,
|
||||
whether in tort (including negligence), contract, or otherwise,
|
||||
unless required by applicable law (such as deliberate and grossly
|
||||
negligent acts) or agreed to in writing, shall any Contributor be
|
||||
liable to You for damages, including any direct, indirect, special,
|
||||
incidental, or consequential damages of any character arising as a
|
||||
result of this License or out of the use or inability to use the
|
||||
Work (including but not limited to damages for loss of goodwill,
|
||||
work stoppage, computer failure or malfunction, or any and all
|
||||
other commercial damages or losses), even if such Contributor
|
||||
has been advised of the possibility of such damages.
|
||||
|
||||
9. Accepting Warranty or Additional Liability. While redistributing
|
||||
the Work or Derivative Works thereof, You may choose to offer,
|
||||
and charge a fee for, acceptance of support, warranty, indemnity,
|
||||
or other liability obligations and/or rights consistent with this
|
||||
License. However, in accepting such obligations, You may act only
|
||||
on Your own behalf and on Your sole responsibility, not on behalf
|
||||
of any other Contributor, and only if You agree to indemnify,
|
||||
defend, and hold each Contributor harmless for any liability
|
||||
incurred by, or claims asserted against, such Contributor by reason
|
||||
of your accepting any such warranty or additional liability.
|
||||
|
||||
END OF TERMS AND CONDITIONS
|
||||
|
||||
APPENDIX: How to apply the Apache License to your work.
|
||||
|
||||
To apply the Apache License to your work, attach the following
|
||||
boilerplate notice, with the fields enclosed by brackets "[]"
|
||||
replaced with your own identifying information. (Don't include
|
||||
the brackets!) The text should be enclosed in the appropriate
|
||||
comment syntax for the file format. We also recommend that a
|
||||
file or class name and description of purpose be included on the
|
||||
same "printed page" as the copyright notice for easier
|
||||
identification within third-party archives.
|
||||
|
||||
Copyright [yyyy] [name of copyright owner]
|
||||
|
||||
Licensed under the Apache License, Version 2.0 (the "License");
|
||||
you may not use this file except in compliance with the License.
|
||||
You may obtain a copy of the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
25
third_party/rust/euclid-0.15.5/LICENSE-MIT
vendored
Normal file
25
third_party/rust/euclid-0.15.5/LICENSE-MIT
vendored
Normal file
@ -0,0 +1,25 @@
|
||||
Copyright (c) 2012-2013 Mozilla Foundation
|
||||
|
||||
Permission is hereby granted, free of charge, to any
|
||||
person obtaining a copy of this software and associated
|
||||
documentation files (the "Software"), to deal in the
|
||||
Software without restriction, including without
|
||||
limitation the rights to use, copy, modify, merge,
|
||||
publish, distribute, sublicense, and/or sell copies of
|
||||
the Software, and to permit persons to whom the Software
|
||||
is furnished to do so, subject to the following
|
||||
conditions:
|
||||
|
||||
The above copyright notice and this permission notice
|
||||
shall be included in all copies or substantial portions
|
||||
of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
|
||||
ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
|
||||
TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
|
||||
PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
|
||||
SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
||||
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
||||
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
|
||||
IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
||||
DEALINGS IN THE SOFTWARE.
|
8
third_party/rust/euclid-0.15.5/README.md
vendored
Normal file
8
third_party/rust/euclid-0.15.5/README.md
vendored
Normal file
@ -0,0 +1,8 @@
|
||||
# euclid
|
||||
|
||||
This is a small library for geometric types with a focus on 2d graphics and
|
||||
layout.
|
||||
|
||||
* [Documentation](https://docs.rs/euclid/)
|
||||
* [Release notes](https://github.com/servo/euclid/releases)
|
||||
* [crates.io](https://crates.io/crates/euclid)
|
36
third_party/rust/euclid-0.15.5/src/approxeq.rs
vendored
Normal file
36
third_party/rust/euclid-0.15.5/src/approxeq.rs
vendored
Normal file
@ -0,0 +1,36 @@
|
||||
// Copyright 2013 The Servo Project Developers. See the COPYRIGHT
|
||||
// file at the top-level directory of this distribution.
|
||||
//
|
||||
// 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.
|
||||
|
||||
|
||||
/// Trait for testing approximate equality
|
||||
pub trait ApproxEq<Eps> {
|
||||
fn approx_epsilon() -> Eps;
|
||||
fn approx_eq(&self, other: &Self) -> bool;
|
||||
fn approx_eq_eps(&self, other: &Self, approx_epsilon: &Eps) -> bool;
|
||||
}
|
||||
|
||||
macro_rules! approx_eq {
|
||||
($ty:ty, $eps:expr) => (
|
||||
impl ApproxEq<$ty> for $ty {
|
||||
#[inline]
|
||||
fn approx_epsilon() -> $ty { $eps }
|
||||
#[inline]
|
||||
fn approx_eq(&self, other: &$ty) -> bool {
|
||||
self.approx_eq_eps(other, &$eps)
|
||||
}
|
||||
#[inline]
|
||||
fn approx_eq_eps(&self, other: &$ty, approx_epsilon: &$ty) -> bool {
|
||||
(*self - *other).abs() < *approx_epsilon
|
||||
}
|
||||
}
|
||||
)
|
||||
}
|
||||
|
||||
approx_eq!(f32, 1.0e-6);
|
||||
approx_eq!(f64, 1.0e-6);
|
461
third_party/rust/euclid-0.15.5/src/length.rs
vendored
Normal file
461
third_party/rust/euclid-0.15.5/src/length.rs
vendored
Normal file
@ -0,0 +1,461 @@
|
||||
// Copyright 2014 The Servo Project Developers. See the COPYRIGHT
|
||||
// file at the top-level directory of this distribution.
|
||||
//
|
||||
// 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 one-dimensional length, tagged with its units.
|
||||
|
||||
use scale_factor::ScaleFactor;
|
||||
use num::Zero;
|
||||
|
||||
use heapsize::HeapSizeOf;
|
||||
use num_traits::{NumCast, Saturating};
|
||||
use num::One;
|
||||
use serde::{Deserialize, Deserializer, Serialize, Serializer};
|
||||
use std::cmp::Ordering;
|
||||
use std::ops::{Add, Sub, Mul, Div, Neg};
|
||||
use std::ops::{AddAssign, SubAssign};
|
||||
use std::marker::PhantomData;
|
||||
use std::fmt;
|
||||
|
||||
/// A one-dimensional distance, with value represented by `T` and unit of measurement `Unit`.
|
||||
///
|
||||
/// `T` can be any numeric type, for example a primitive type like `u64` or `f32`.
|
||||
///
|
||||
/// `Unit` is not used in the representation of a `Length` value. It is used only at compile time
|
||||
/// to ensure that a `Length` stored with one unit is converted explicitly before being used in an
|
||||
/// expression that requires a different unit. It may be a type without values, such as an empty
|
||||
/// enum.
|
||||
///
|
||||
/// You can multiply a `Length` by a `scale_factor::ScaleFactor` to convert it from one unit to
|
||||
/// another. See the `ScaleFactor` docs for an example.
|
||||
// Uncomment the derive, and remove the macro call, once heapsize gets
|
||||
// PhantomData<T> support.
|
||||
#[repr(C)]
|
||||
pub struct Length<T, Unit>(pub T, PhantomData<Unit>);
|
||||
|
||||
impl<T: Clone, Unit> Clone for Length<T, Unit> {
|
||||
fn clone(&self) -> Self {
|
||||
Length(self.0.clone(), PhantomData)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy, Unit> Copy for Length<T, Unit> {}
|
||||
|
||||
impl<Unit, T: HeapSizeOf> HeapSizeOf for Length<T, Unit> {
|
||||
fn heap_size_of_children(&self) -> usize {
|
||||
self.0.heap_size_of_children()
|
||||
}
|
||||
}
|
||||
|
||||
impl<'de, Unit, T> Deserialize<'de> for Length<T, Unit> where T: Deserialize<'de> {
|
||||
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
|
||||
where D: Deserializer<'de> {
|
||||
Ok(Length(try!(Deserialize::deserialize(deserializer)), PhantomData))
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, Unit> Serialize for Length<T, Unit> where T: Serialize {
|
||||
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error> where S: Serializer {
|
||||
self.0.serialize(serializer)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, Unit> Length<T, Unit> {
|
||||
pub fn new(x: T) -> Self {
|
||||
Length(x, PhantomData)
|
||||
}
|
||||
}
|
||||
|
||||
impl<Unit, T: Clone> Length<T, Unit> {
|
||||
pub fn get(&self) -> T {
|
||||
self.0.clone()
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: fmt::Debug + Clone, U> fmt::Debug for Length<T, U> {
|
||||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||
self.get().fmt(f)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: fmt::Display + Clone, U> fmt::Display for Length<T, U> {
|
||||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||
self.get().fmt(f)
|
||||
}
|
||||
}
|
||||
|
||||
// length + length
|
||||
impl<U, T: Clone + Add<T, Output=T>> Add for Length<T, U> {
|
||||
type Output = Length<T, U>;
|
||||
fn add(self, other: Length<T, U>) -> Length<T, U> {
|
||||
Length::new(self.get() + other.get())
|
||||
}
|
||||
}
|
||||
|
||||
// length += length
|
||||
impl<U, T: Clone + AddAssign<T>> AddAssign for Length<T, U> {
|
||||
fn add_assign(&mut self, other: Length<T, U>) {
|
||||
self.0 += other.get();
|
||||
}
|
||||
}
|
||||
|
||||
// length - length
|
||||
impl<U, T: Clone + Sub<T, Output=T>> Sub<Length<T, U>> for Length<T, U> {
|
||||
type Output = Length<T, U>;
|
||||
fn sub(self, other: Length<T, U>) -> <Self as Sub>::Output {
|
||||
Length::new(self.get() - other.get())
|
||||
}
|
||||
}
|
||||
|
||||
// length -= length
|
||||
impl<U, T: Clone + SubAssign<T>> SubAssign for Length<T, U> {
|
||||
fn sub_assign(&mut self, other: Length<T, U>) {
|
||||
self.0 -= other.get();
|
||||
}
|
||||
}
|
||||
|
||||
// Saturating length + length and length - length.
|
||||
impl<U, T: Clone + Saturating> Saturating for Length<T, U> {
|
||||
fn saturating_add(self, other: Length<T, U>) -> Length<T, U> {
|
||||
Length::new(self.get().saturating_add(other.get()))
|
||||
}
|
||||
|
||||
fn saturating_sub(self, other: Length<T, U>) -> Length<T, U> {
|
||||
Length::new(self.get().saturating_sub(other.get()))
|
||||
}
|
||||
}
|
||||
|
||||
// length / length
|
||||
impl<Src, Dst, T: Clone + Div<T, Output=T>> Div<Length<T, Src>> for Length<T, Dst> {
|
||||
type Output = ScaleFactor<T, Src, Dst>;
|
||||
#[inline]
|
||||
fn div(self, other: Length<T, Src>) -> ScaleFactor<T, Src, Dst> {
|
||||
ScaleFactor::new(self.get() / other.get())
|
||||
}
|
||||
}
|
||||
|
||||
// length * scaleFactor
|
||||
impl<Src, Dst, T: Clone + Mul<T, Output=T>> Mul<ScaleFactor<T, Src, Dst>> for Length<T, Src> {
|
||||
type Output = Length<T, Dst>;
|
||||
#[inline]
|
||||
fn mul(self, scale: ScaleFactor<T, Src, Dst>) -> Length<T, Dst> {
|
||||
Length::new(self.get() * scale.get())
|
||||
}
|
||||
}
|
||||
|
||||
// length / scaleFactor
|
||||
impl<Src, Dst, T: Clone + Div<T, Output=T>> Div<ScaleFactor<T, Src, Dst>> for Length<T, Dst> {
|
||||
type Output = Length<T, Src>;
|
||||
#[inline]
|
||||
fn div(self, scale: ScaleFactor<T, Src, Dst>) -> Length<T, Src> {
|
||||
Length::new(self.get() / scale.get())
|
||||
}
|
||||
}
|
||||
|
||||
// -length
|
||||
impl <U, T:Clone + Neg<Output=T>> Neg for Length<T, U> {
|
||||
type Output = Length<T, U>;
|
||||
#[inline]
|
||||
fn neg(self) -> Length<T, U> {
|
||||
Length::new(-self.get())
|
||||
}
|
||||
}
|
||||
|
||||
impl<Unit, T0: NumCast + Clone> Length<T0, Unit> {
|
||||
/// Cast from one numeric representation to another, preserving the units.
|
||||
pub fn cast<T1: NumCast + Clone>(&self) -> Option<Length<T1, Unit>> {
|
||||
NumCast::from(self.get()).map(Length::new)
|
||||
}
|
||||
}
|
||||
|
||||
impl<Unit, T: Clone + PartialEq> PartialEq for Length<T, Unit> {
|
||||
fn eq(&self, other: &Self) -> bool { self.get().eq(&other.get()) }
|
||||
}
|
||||
|
||||
impl<Unit, T: Clone + PartialOrd> PartialOrd for Length<T, Unit> {
|
||||
fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
|
||||
self.get().partial_cmp(&other.get())
|
||||
}
|
||||
}
|
||||
|
||||
impl<Unit, T: Clone + Eq> Eq for Length<T, Unit> {}
|
||||
|
||||
impl<Unit, T: Clone + Ord> Ord for Length<T, Unit> {
|
||||
fn cmp(&self, other: &Self) -> Ordering { self.get().cmp(&other.get()) }
|
||||
}
|
||||
|
||||
impl<Unit, T: Zero> Zero for Length<T, Unit> {
|
||||
fn zero() -> Self {
|
||||
Length::new(Zero::zero())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, U> Length<T, U>
|
||||
where T: Copy + One + Add<Output=T> + Sub<Output=T> + Mul<Output=T> {
|
||||
/// Linearly interpolate between this length and another length.
|
||||
///
|
||||
/// `t` is expected to be between zero and one.
|
||||
#[inline]
|
||||
pub fn lerp(&self, other: Self, t: T) -> Self {
|
||||
let one_t = T::one() - t;
|
||||
Length::new(one_t * self.get() + t * other.get())
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::Length;
|
||||
use num::Zero;
|
||||
|
||||
use heapsize::HeapSizeOf;
|
||||
use num_traits::Saturating;
|
||||
use scale_factor::ScaleFactor;
|
||||
use std::f32::INFINITY;
|
||||
|
||||
extern crate serde_test;
|
||||
use self::serde_test::Token;
|
||||
use self::serde_test::assert_tokens;
|
||||
|
||||
enum Inch {}
|
||||
enum Mm {}
|
||||
enum Cm {}
|
||||
enum Second {}
|
||||
|
||||
#[test]
|
||||
fn test_clone() {
|
||||
// A cloned Length is a separate length with the state matching the
|
||||
// original Length at the point it was cloned.
|
||||
let mut variable_length: Length<f32, Inch> = Length::new(12.0);
|
||||
|
||||
let one_foot = variable_length.clone();
|
||||
variable_length.0 = 24.0;
|
||||
|
||||
assert_eq!(one_foot.get(), 12.0);
|
||||
assert_eq!(variable_length.get(), 24.0);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_heapsizeof_builtins() {
|
||||
// Heap size of built-ins is zero by default.
|
||||
let one_foot: Length<f32, Inch> = Length::new(12.0);
|
||||
|
||||
let heap_size_length_f32 = one_foot.heap_size_of_children();
|
||||
|
||||
assert_eq!(heap_size_length_f32, 0);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_heapsizeof_length_vector() {
|
||||
// Heap size of any Length is just the heap size of the length value.
|
||||
for n in 0..5 {
|
||||
let length: Length<Vec<f32>, Inch> = Length::new(Vec::with_capacity(n));
|
||||
|
||||
assert_eq!(length.heap_size_of_children(), length.0.heap_size_of_children());
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_length_serde() {
|
||||
let one_cm: Length<f32, Mm> = Length::new(10.0);
|
||||
|
||||
assert_tokens(&one_cm, &[Token::F32(10.0)]);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_get_clones_length_value() {
|
||||
// Calling get returns a clone of the Length's value.
|
||||
// To test this, we need something clone-able - hence a vector.
|
||||
let mut length: Length<Vec<i32>, Inch> = Length::new(vec![1, 2, 3]);
|
||||
|
||||
let value = length.get();
|
||||
length.0.push(4);
|
||||
|
||||
assert_eq!(value, vec![1, 2, 3]);
|
||||
assert_eq!(length.get(), vec![1, 2, 3, 4]);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_fmt_debug() {
|
||||
// Debug and display format the value only.
|
||||
let one_cm: Length<f32, Mm> = Length::new(10.0);
|
||||
|
||||
let result = format!("{:?}", one_cm);
|
||||
|
||||
assert_eq!(result, "10");
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_fmt_display() {
|
||||
// Debug and display format the value only.
|
||||
let one_cm: Length<f32, Mm> = Length::new(10.0);
|
||||
|
||||
let result = format!("{}", one_cm);
|
||||
|
||||
assert_eq!(result, "10");
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_add() {
|
||||
let length1: Length<u8, Mm> = Length::new(250);
|
||||
let length2: Length<u8, Mm> = Length::new(5);
|
||||
|
||||
let result = length1 + length2;
|
||||
|
||||
assert_eq!(result.get(), 255);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_addassign() {
|
||||
let one_cm: Length<f32, Mm> = Length::new(10.0);
|
||||
let mut measurement: Length<f32, Mm> = Length::new(5.0);
|
||||
|
||||
measurement += one_cm;
|
||||
|
||||
assert_eq!(measurement.get(), 15.0);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_sub() {
|
||||
let length1: Length<u8, Mm> = Length::new(250);
|
||||
let length2: Length<u8, Mm> = Length::new(5);
|
||||
|
||||
let result = length1 - length2;
|
||||
|
||||
assert_eq!(result.get(), 245);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_subassign() {
|
||||
let one_cm: Length<f32, Mm> = Length::new(10.0);
|
||||
let mut measurement: Length<f32, Mm> = Length::new(5.0);
|
||||
|
||||
measurement -= one_cm;
|
||||
|
||||
assert_eq!(measurement.get(), -5.0);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_saturating_add() {
|
||||
let length1: Length<u8, Mm> = Length::new(250);
|
||||
let length2: Length<u8, Mm> = Length::new(6);
|
||||
|
||||
let result = length1.saturating_add(length2);
|
||||
|
||||
assert_eq!(result.get(), 255);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_saturating_sub() {
|
||||
let length1: Length<u8, Mm> = Length::new(5);
|
||||
let length2: Length<u8, Mm> = Length::new(10);
|
||||
|
||||
let result = length1.saturating_sub(length2);
|
||||
|
||||
assert_eq!(result.get(), 0);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_division_by_length() {
|
||||
// Division results in a ScaleFactor from denominator units
|
||||
// to numerator units.
|
||||
let length: Length<f32, Cm> = Length::new(5.0);
|
||||
let duration: Length<f32, Second> = Length::new(10.0);
|
||||
|
||||
let result = length / duration;
|
||||
|
||||
let expected: ScaleFactor<f32, Second, Cm> = ScaleFactor::new(0.5);
|
||||
assert_eq!(result, expected);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_multiplication() {
|
||||
let length_mm: Length<f32, Mm> = Length::new(10.0);
|
||||
let cm_per_mm: ScaleFactor<f32, Mm, Cm> = ScaleFactor::new(0.1);
|
||||
|
||||
let result = length_mm * cm_per_mm;
|
||||
|
||||
let expected: Length<f32, Cm> = Length::new(1.0);
|
||||
assert_eq!(result, expected);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_division_by_scalefactor() {
|
||||
let length: Length<f32, Cm> = Length::new(5.0);
|
||||
let cm_per_second: ScaleFactor<f32, Second, Cm> = ScaleFactor::new(10.0);
|
||||
|
||||
let result = length / cm_per_second;
|
||||
|
||||
let expected: Length<f32, Second> = Length::new(0.5);
|
||||
assert_eq!(result, expected);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_negation() {
|
||||
let length: Length<f32, Cm> = Length::new(5.0);
|
||||
|
||||
let result = -length;
|
||||
|
||||
let expected: Length<f32, Cm> = Length::new(-5.0);
|
||||
assert_eq!(result, expected);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_cast() {
|
||||
let length_as_i32: Length<i32, Cm> = Length::new(5);
|
||||
|
||||
let result: Length<f32, Cm> = length_as_i32.cast().unwrap();
|
||||
|
||||
let length_as_f32: Length<f32, Cm> = Length::new(5.0);
|
||||
assert_eq!(result, length_as_f32);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_equality() {
|
||||
let length_5_point_0: Length<f32, Cm> = Length::new(5.0);
|
||||
let length_5_point_1: Length<f32, Cm> = Length::new(5.1);
|
||||
let length_0_point_1: Length<f32, Cm> = Length::new(0.1);
|
||||
|
||||
assert!(length_5_point_0 == length_5_point_1 - length_0_point_1);
|
||||
assert!(length_5_point_0 != length_5_point_1);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_order() {
|
||||
let length_5_point_0: Length<f32, Cm> = Length::new(5.0);
|
||||
let length_5_point_1: Length<f32, Cm> = Length::new(5.1);
|
||||
let length_0_point_1: Length<f32, Cm> = Length::new(0.1);
|
||||
|
||||
assert!(length_5_point_0 < length_5_point_1);
|
||||
assert!(length_5_point_0 <= length_5_point_1);
|
||||
assert!(length_5_point_0 <= length_5_point_1 - length_0_point_1);
|
||||
assert!(length_5_point_1 > length_5_point_0);
|
||||
assert!(length_5_point_1 >= length_5_point_0);
|
||||
assert!(length_5_point_0 >= length_5_point_1 - length_0_point_1);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_zero_add() {
|
||||
type LengthCm = Length<f32, Cm>;
|
||||
let length: LengthCm = Length::new(5.0);
|
||||
|
||||
let result = length - LengthCm::zero();
|
||||
|
||||
assert_eq!(result, length);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_zero_division() {
|
||||
type LengthCm = Length<f32, Cm>;
|
||||
let length: LengthCm = Length::new(5.0);
|
||||
let length_zero: LengthCm = Length::zero();
|
||||
|
||||
let result = length / length_zero;
|
||||
|
||||
let expected: ScaleFactor<f32, Cm, Cm> = ScaleFactor::new(INFINITY);
|
||||
assert_eq!(result, expected);
|
||||
}
|
||||
}
|
136
third_party/rust/euclid-0.15.5/src/lib.rs
vendored
Normal file
136
third_party/rust/euclid-0.15.5/src/lib.rs
vendored
Normal file
@ -0,0 +1,136 @@
|
||||
// Copyright 2013 The Servo Project Developers. See the COPYRIGHT
|
||||
// file at the top-level directory of this distribution.
|
||||
//
|
||||
// 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.
|
||||
|
||||
#![cfg_attr(feature = "unstable", feature(asm, repr_simd, test, fn_must_use))]
|
||||
|
||||
//! A collection of strongly typed math tools for computer graphics with an inclination
|
||||
//! towards 2d graphics and layout.
|
||||
//!
|
||||
//! All types are generic over the scalar type of their component (`f32`, `i32`, etc.),
|
||||
//! and tagged with a generic Unit parameter which is useful to prevent mixing
|
||||
//! values from different spaces. For example it should not be legal to translate
|
||||
//! a screen-space position by a world-space vector and this can be expressed using
|
||||
//! the generic Unit parameter.
|
||||
//!
|
||||
//! This unit system is not mandatory and all Typed* structures have an alias
|
||||
//! with the default unit: `UnknownUnit`.
|
||||
//! for example ```Point2D<T>``` is equivalent to ```TypedPoint2D<T, UnknownUnit>```.
|
||||
//! Client code typically creates a set of aliases for each type and doesn't need
|
||||
//! to deal with the specifics of typed units further. For example:
|
||||
//!
|
||||
//! ```rust
|
||||
//! use euclid::*;
|
||||
//! pub struct ScreenSpace;
|
||||
//! pub type ScreenPoint = TypedPoint2D<f32, ScreenSpace>;
|
||||
//! pub type ScreenSize = TypedSize2D<f32, ScreenSpace>;
|
||||
//! pub struct WorldSpace;
|
||||
//! pub type WorldPoint = TypedPoint3D<f32, WorldSpace>;
|
||||
//! pub type ProjectionMatrix = TypedTransform3D<f32, WorldSpace, ScreenSpace>;
|
||||
//! // etc...
|
||||
//! ```
|
||||
//!
|
||||
//! All euclid types are marked `#[repr(C)]` in order to facilitate exposing them to
|
||||
//! foreign function interfaces (provided the underlying scalar type is also `repr(C)`).
|
||||
//!
|
||||
//! Components are accessed in their scalar form by default for convenience, and most
|
||||
//! types additionally implement strongly typed accessors which return typed ```Length``` wrappers.
|
||||
//! For example:
|
||||
//!
|
||||
//! ```rust
|
||||
//! # use euclid::*;
|
||||
//! # pub struct WorldSpace;
|
||||
//! # pub type WorldPoint = TypedPoint3D<f32, WorldSpace>;
|
||||
//! let p = WorldPoint::new(0.0, 1.0, 1.0);
|
||||
//! // p.x is an f32.
|
||||
//! println!("p.x = {:?} ", p.x);
|
||||
//! // p.x is a Length<f32, WorldSpace>.
|
||||
//! println!("p.x_typed() = {:?} ", p.x_typed());
|
||||
//! // Length::get returns the scalar value (f32).
|
||||
//! assert_eq!(p.x, p.x_typed().get());
|
||||
//! ```
|
||||
|
||||
extern crate heapsize;
|
||||
|
||||
#[cfg_attr(test, macro_use)]
|
||||
extern crate log;
|
||||
extern crate serde;
|
||||
|
||||
#[cfg(test)]
|
||||
extern crate rand;
|
||||
#[cfg(feature = "unstable")]
|
||||
extern crate test;
|
||||
extern crate num_traits;
|
||||
|
||||
pub use length::Length;
|
||||
pub use scale_factor::ScaleFactor;
|
||||
pub use transform2d::{Transform2D, TypedTransform2D};
|
||||
pub use transform3d::{Transform3D, TypedTransform3D};
|
||||
pub use point::{
|
||||
Point2D, TypedPoint2D, point2,
|
||||
Point3D, TypedPoint3D, point3,
|
||||
};
|
||||
pub use vector::{
|
||||
Vector2D, TypedVector2D, vec2,
|
||||
Vector3D, TypedVector3D, vec3,
|
||||
};
|
||||
|
||||
pub use rect::{Rect, TypedRect, rect};
|
||||
pub use rotation::{TypedRotation2D, Rotation2D, TypedRotation3D, Rotation3D};
|
||||
pub use side_offsets::{SideOffsets2D, TypedSideOffsets2D};
|
||||
#[cfg(feature = "unstable")] pub use side_offsets::SideOffsets2DSimdI32;
|
||||
pub use size::{Size2D, TypedSize2D, size2};
|
||||
pub use trig::Trig;
|
||||
|
||||
pub mod approxeq;
|
||||
pub mod num;
|
||||
mod length;
|
||||
#[macro_use]
|
||||
mod macros;
|
||||
mod transform2d;
|
||||
mod transform3d;
|
||||
mod point;
|
||||
mod rect;
|
||||
mod rotation;
|
||||
mod scale_factor;
|
||||
mod side_offsets;
|
||||
mod size;
|
||||
mod trig;
|
||||
mod vector;
|
||||
|
||||
/// The default unit.
|
||||
#[derive(Clone, Copy)]
|
||||
pub struct UnknownUnit;
|
||||
|
||||
/// Unit for angles in radians.
|
||||
pub struct Rad;
|
||||
|
||||
/// Unit for angles in degrees.
|
||||
pub struct Deg;
|
||||
|
||||
/// A value in radians.
|
||||
pub type Radians<T> = Length<T, Rad>;
|
||||
|
||||
/// A value in Degrees.
|
||||
pub type Degrees<T> = Length<T, Deg>;
|
||||
|
||||
/// Temporary alias to facilitate the transition to the new naming scheme
|
||||
#[deprecated]
|
||||
pub type Matrix2D<T> = Transform2D<T>;
|
||||
|
||||
/// Temporary alias to facilitate the transition to the new naming scheme
|
||||
#[deprecated]
|
||||
pub type TypedMatrix2D<T, Src, Dst> = TypedTransform2D<T, Src, Dst>;
|
||||
|
||||
/// Temporary alias to facilitate the transition to the new naming scheme
|
||||
#[deprecated]
|
||||
pub type Matrix4D<T> = Transform3D<T>;
|
||||
|
||||
/// Temporary alias to facilitate the transition to the new naming scheme
|
||||
#[deprecated]
|
||||
pub type TypedMatrix4D<T, Src, Dst> = TypedTransform3D<T, Src, Dst>;
|
87
third_party/rust/euclid-0.15.5/src/macros.rs
vendored
Normal file
87
third_party/rust/euclid-0.15.5/src/macros.rs
vendored
Normal file
@ -0,0 +1,87 @@
|
||||
// Copyright 2013 The Servo Project Developers. See the COPYRIGHT
|
||||
// file at the top-level directory of this distribution.
|
||||
//
|
||||
// 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.
|
||||
|
||||
macro_rules! define_matrix {
|
||||
(
|
||||
$(#[$attr:meta])*
|
||||
pub struct $name:ident<T, $($phantom:ident),+> {
|
||||
$(pub $field:ident: T,)+
|
||||
}
|
||||
) => (
|
||||
#[repr(C)]
|
||||
$(#[$attr])*
|
||||
pub struct $name<T, $($phantom),+> {
|
||||
$(pub $field: T,)+
|
||||
_unit: PhantomData<($($phantom),+)>
|
||||
}
|
||||
|
||||
impl<T: Clone, $($phantom),+> Clone for $name<T, $($phantom),+> {
|
||||
fn clone(&self) -> Self {
|
||||
$name {
|
||||
$($field: self.$field.clone(),)+
|
||||
_unit: PhantomData,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy, $($phantom),+> Copy for $name<T, $($phantom),+> {}
|
||||
|
||||
impl<T, $($phantom),+> ::heapsize::HeapSizeOf for $name<T, $($phantom),+>
|
||||
where T: ::heapsize::HeapSizeOf
|
||||
{
|
||||
fn heap_size_of_children(&self) -> usize {
|
||||
$(self.$field.heap_size_of_children() +)+ 0
|
||||
}
|
||||
}
|
||||
|
||||
impl<'de, T, $($phantom),+> ::serde::Deserialize<'de> for $name<T, $($phantom),+>
|
||||
where T: ::serde::Deserialize<'de>
|
||||
{
|
||||
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
|
||||
where D: ::serde::Deserializer<'de>
|
||||
{
|
||||
let ($($field,)+) =
|
||||
try!(::serde::Deserialize::deserialize(deserializer));
|
||||
Ok($name {
|
||||
$($field: $field,)+
|
||||
_unit: PhantomData,
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, $($phantom),+> ::serde::Serialize for $name<T, $($phantom),+>
|
||||
where T: ::serde::Serialize
|
||||
{
|
||||
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
|
||||
where S: ::serde::Serializer
|
||||
{
|
||||
($(&self.$field,)+).serialize(serializer)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, $($phantom),+> ::std::cmp::Eq for $name<T, $($phantom),+>
|
||||
where T: ::std::cmp::Eq {}
|
||||
|
||||
impl<T, $($phantom),+> ::std::cmp::PartialEq for $name<T, $($phantom),+>
|
||||
where T: ::std::cmp::PartialEq
|
||||
{
|
||||
fn eq(&self, other: &Self) -> bool {
|
||||
true $(&& self.$field == other.$field)+
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, $($phantom),+> ::std::hash::Hash for $name<T, $($phantom),+>
|
||||
where T: ::std::hash::Hash
|
||||
{
|
||||
fn hash<H: ::std::hash::Hasher>(&self, h: &mut H) {
|
||||
$(self.$field.hash(h);)+
|
||||
}
|
||||
}
|
||||
)
|
||||
}
|
77
third_party/rust/euclid-0.15.5/src/num.rs
vendored
Normal file
77
third_party/rust/euclid-0.15.5/src/num.rs
vendored
Normal file
@ -0,0 +1,77 @@
|
||||
// Copyright 2014 The Servo Project Developers. See the COPYRIGHT
|
||||
// file at the top-level directory of this distribution.
|
||||
//
|
||||
// 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 one-dimensional length, tagged with its units.
|
||||
|
||||
use num_traits;
|
||||
|
||||
|
||||
pub trait Zero {
|
||||
fn zero() -> Self;
|
||||
}
|
||||
|
||||
impl<T: num_traits::Zero> Zero for T {
|
||||
fn zero() -> T { num_traits::Zero::zero() }
|
||||
}
|
||||
|
||||
pub trait One {
|
||||
fn one() -> Self;
|
||||
}
|
||||
|
||||
impl<T: num_traits::One> One for T {
|
||||
fn one() -> T { num_traits::One::one() }
|
||||
}
|
||||
|
||||
|
||||
pub trait Round : Copy { fn round(self) -> Self; }
|
||||
pub trait Floor : Copy { fn floor(self) -> Self; }
|
||||
pub trait Ceil : Copy { fn ceil(self) -> Self; }
|
||||
|
||||
macro_rules! num_int {
|
||||
($ty:ty) => (
|
||||
impl Round for $ty {
|
||||
#[inline]
|
||||
fn round(self) -> $ty { self }
|
||||
}
|
||||
impl Floor for $ty {
|
||||
#[inline]
|
||||
fn floor(self) -> $ty { self }
|
||||
}
|
||||
impl Ceil for $ty {
|
||||
#[inline]
|
||||
fn ceil(self) -> $ty { self }
|
||||
}
|
||||
)
|
||||
}
|
||||
macro_rules! num_float {
|
||||
($ty:ty) => (
|
||||
impl Round for $ty {
|
||||
#[inline]
|
||||
fn round(self) -> $ty { self.round() }
|
||||
}
|
||||
impl Floor for $ty {
|
||||
#[inline]
|
||||
fn floor(self) -> $ty { self.floor() }
|
||||
}
|
||||
impl Ceil for $ty {
|
||||
#[inline]
|
||||
fn ceil(self) -> $ty { self.ceil() }
|
||||
}
|
||||
)
|
||||
}
|
||||
|
||||
num_int!(i16);
|
||||
num_int!(u16);
|
||||
num_int!(i32);
|
||||
num_int!(u32);
|
||||
num_int!(i64);
|
||||
num_int!(u64);
|
||||
num_int!(isize);
|
||||
num_int!(usize);
|
||||
num_float!(f32);
|
||||
num_float!(f64);
|
834
third_party/rust/euclid-0.15.5/src/point.rs
vendored
Normal file
834
third_party/rust/euclid-0.15.5/src/point.rs
vendored
Normal file
@ -0,0 +1,834 @@
|
||||
// Copyright 2013 The Servo Project Developers. See the COPYRIGHT
|
||||
// file at the top-level directory of this distribution.
|
||||
//
|
||||
// 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.
|
||||
|
||||
use super::UnknownUnit;
|
||||
use approxeq::ApproxEq;
|
||||
use length::Length;
|
||||
use scale_factor::ScaleFactor;
|
||||
use size::TypedSize2D;
|
||||
use num::*;
|
||||
use num_traits::{Float, NumCast};
|
||||
use vector::{TypedVector2D, TypedVector3D, vec2, vec3};
|
||||
use std::fmt;
|
||||
use std::ops::{Add, Mul, Sub, Div, AddAssign, SubAssign, MulAssign, DivAssign};
|
||||
use std::marker::PhantomData;
|
||||
|
||||
define_matrix! {
|
||||
/// A 2d Point tagged with a unit.
|
||||
pub struct TypedPoint2D<T, U> {
|
||||
pub x: T,
|
||||
pub y: T,
|
||||
}
|
||||
}
|
||||
|
||||
/// Default 2d point type with no unit.
|
||||
///
|
||||
/// `Point2D` provides the same methods as `TypedPoint2D`.
|
||||
pub type Point2D<T> = TypedPoint2D<T, UnknownUnit>;
|
||||
|
||||
impl<T: Copy + Zero, U> TypedPoint2D<T, U> {
|
||||
/// Constructor, setting all components to zero.
|
||||
#[inline]
|
||||
pub fn origin() -> Self {
|
||||
point2(Zero::zero(), Zero::zero())
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn zero() -> Self {
|
||||
Self::origin()
|
||||
}
|
||||
|
||||
/// Convert into a 3d point.
|
||||
#[inline]
|
||||
pub fn to_3d(&self) -> TypedPoint3D<T, U> {
|
||||
point3(self.x, self.y, Zero::zero())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: fmt::Debug, U> fmt::Debug for TypedPoint2D<T, U> {
|
||||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||
write!(f, "({:?},{:?})", self.x, self.y)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: fmt::Display, U> fmt::Display for TypedPoint2D<T, U> {
|
||||
fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
|
||||
write!(formatter, "({},{})", self.x, self.y)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy, U> TypedPoint2D<T, U> {
|
||||
/// Constructor taking scalar values directly.
|
||||
#[inline]
|
||||
pub fn new(x: T, y: T) -> Self {
|
||||
TypedPoint2D { x: x, y: y, _unit: PhantomData }
|
||||
}
|
||||
|
||||
/// Constructor taking properly typed Lengths instead of scalar values.
|
||||
#[inline]
|
||||
pub fn from_lengths(x: Length<T, U>, y: Length<T, U>) -> Self {
|
||||
point2(x.0, y.0)
|
||||
}
|
||||
|
||||
/// Create a 3d point from this one, using the specified z value.
|
||||
#[inline]
|
||||
pub fn extend(&self, z: T) -> TypedPoint3D<T, U> {
|
||||
point3(self.x, self.y, z)
|
||||
}
|
||||
|
||||
/// Cast this point into a vector.
|
||||
///
|
||||
/// Equivalent to subtracting the origin from this point.
|
||||
#[inline]
|
||||
pub fn to_vector(&self) -> TypedVector2D<T, U> {
|
||||
vec2(self.x, self.y)
|
||||
}
|
||||
|
||||
/// Swap x and y.
|
||||
#[inline]
|
||||
pub fn yx(&self) -> Self {
|
||||
point2(self.y, self.x)
|
||||
}
|
||||
|
||||
/// Returns self.x as a Length carrying the unit.
|
||||
#[inline]
|
||||
pub fn x_typed(&self) -> Length<T, U> { Length::new(self.x) }
|
||||
|
||||
/// Returns self.y as a Length carrying the unit.
|
||||
#[inline]
|
||||
pub fn y_typed(&self) -> Length<T, U> { Length::new(self.y) }
|
||||
|
||||
/// Drop the units, preserving only the numeric value.
|
||||
#[inline]
|
||||
pub fn to_untyped(&self) -> Point2D<T> {
|
||||
point2(self.x, self.y)
|
||||
}
|
||||
|
||||
/// Tag a unitless value with units.
|
||||
#[inline]
|
||||
pub fn from_untyped(p: &Point2D<T>) -> Self {
|
||||
point2(p.x, p.y)
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn to_array(&self) -> [T; 2] {
|
||||
[self.x, self.y]
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Add<T, Output=T>, U> TypedPoint2D<T, U> {
|
||||
#[inline]
|
||||
pub fn add_size(&self, other: &TypedSize2D<T, U>) -> Self {
|
||||
point2(self.x + other.width, self.y + other.height)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Add<T, Output=T>, U> Add<TypedSize2D<T, U>> for TypedPoint2D<T, U> {
|
||||
type Output = Self;
|
||||
#[inline]
|
||||
fn add(self, other: TypedSize2D<T, U>) -> Self {
|
||||
point2(self.x + other.width, self.y + other.height)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Add<T, Output=T>, U> AddAssign<TypedVector2D<T, U>> for TypedPoint2D<T, U> {
|
||||
#[inline]
|
||||
fn add_assign(&mut self, other: TypedVector2D<T, U>) {
|
||||
*self = *self + other
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Sub<T, Output=T>, U> SubAssign<TypedVector2D<T, U>> for TypedPoint2D<T, U> {
|
||||
#[inline]
|
||||
fn sub_assign(&mut self, other: TypedVector2D<T, U>) {
|
||||
*self = *self - other
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Add<T, Output=T>, U> Add<TypedVector2D<T, U>> for TypedPoint2D<T, U> {
|
||||
type Output = Self;
|
||||
#[inline]
|
||||
fn add(self, other: TypedVector2D<T, U>) -> Self {
|
||||
point2(self.x + other.x, self.y + other.y)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Sub<T, Output=T>, U> Sub for TypedPoint2D<T, U> {
|
||||
type Output = TypedVector2D<T, U>;
|
||||
#[inline]
|
||||
fn sub(self, other: Self) -> TypedVector2D<T, U> {
|
||||
vec2(self.x - other.x, self.y - other.y)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Sub<T, Output=T>, U> Sub<TypedVector2D<T, U>> for TypedPoint2D<T, U> {
|
||||
type Output = Self;
|
||||
#[inline]
|
||||
fn sub(self, other: TypedVector2D<T, U>) -> Self {
|
||||
point2(self.x - other.x, self.y - other.y)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Float, U> TypedPoint2D<T, U> {
|
||||
#[inline]
|
||||
pub fn min(self, other: Self) -> Self {
|
||||
point2(self.x.min(other.x), self.y.min(other.y))
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn max(self, other: Self) -> Self {
|
||||
point2(self.x.max(other.x), self.y.max(other.y))
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Mul<T, Output=T>, U> Mul<T> for TypedPoint2D<T, U> {
|
||||
type Output = Self;
|
||||
#[inline]
|
||||
fn mul(self, scale: T) -> Self {
|
||||
point2(self.x * scale, self.y * scale)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Mul<T, Output=T>, U> MulAssign<T> for TypedPoint2D<T, U> {
|
||||
#[inline]
|
||||
fn mul_assign(&mut self, scale: T) {
|
||||
*self = *self * scale
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Div<T, Output=T>, U> Div<T> for TypedPoint2D<T, U> {
|
||||
type Output = Self;
|
||||
#[inline]
|
||||
fn div(self, scale: T) -> Self {
|
||||
point2(self.x / scale, self.y / scale)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Div<T, Output=T>, U> DivAssign<T> for TypedPoint2D<T, U> {
|
||||
#[inline]
|
||||
fn div_assign(&mut self, scale: T) {
|
||||
*self = *self / scale
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Mul<T, Output=T>, U1, U2> Mul<ScaleFactor<T, U1, U2>> for TypedPoint2D<T, U1> {
|
||||
type Output = TypedPoint2D<T, U2>;
|
||||
#[inline]
|
||||
fn mul(self, scale: ScaleFactor<T, U1, U2>) -> TypedPoint2D<T, U2> {
|
||||
point2(self.x * scale.get(), self.y * scale.get())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Div<T, Output=T>, U1, U2> Div<ScaleFactor<T, U1, U2>> for TypedPoint2D<T, U2> {
|
||||
type Output = TypedPoint2D<T, U1>;
|
||||
#[inline]
|
||||
fn div(self, scale: ScaleFactor<T, U1, U2>) -> TypedPoint2D<T, U1> {
|
||||
point2(self.x / scale.get(), self.y / scale.get())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Round, U> TypedPoint2D<T, U> {
|
||||
/// Rounds each component to the nearest integer value.
|
||||
///
|
||||
/// This behavior is preserved for negative values (unlike the basic cast).
|
||||
/// For example `{ -0.1, -0.8 }.round() == { 0.0, -1.0 }`.
|
||||
#[inline]
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn round(&self) -> Self {
|
||||
point2(self.x.round(), self.y.round())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Ceil, U> TypedPoint2D<T, U> {
|
||||
/// Rounds each component to the smallest integer equal or greater than the original value.
|
||||
///
|
||||
/// This behavior is preserved for negative values (unlike the basic cast).
|
||||
/// For example `{ -0.1, -0.8 }.ceil() == { 0.0, 0.0 }`.
|
||||
#[inline]
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn ceil(&self) -> Self {
|
||||
point2(self.x.ceil(), self.y.ceil())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Floor, U> TypedPoint2D<T, U> {
|
||||
/// Rounds each component to the biggest integer equal or lower than the original value.
|
||||
///
|
||||
/// This behavior is preserved for negative values (unlike the basic cast).
|
||||
/// For example `{ -0.1, -0.8 }.floor() == { -1.0, -1.0 }`.
|
||||
#[inline]
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn floor(&self) -> Self {
|
||||
point2(self.x.floor(), self.y.floor())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: NumCast + Copy, U> TypedPoint2D<T, U> {
|
||||
/// Cast from one numeric representation to another, preserving the units.
|
||||
///
|
||||
/// When casting from floating point to integer coordinates, the decimals are truncated
|
||||
/// as one would expect from a simple cast, but this behavior does not always make sense
|
||||
/// geometrically. Consider using `round()`, `ceil()` or `floor()` before casting.
|
||||
#[inline]
|
||||
pub fn cast<NewT: NumCast + Copy>(&self) -> Option<TypedPoint2D<NewT, U>> {
|
||||
match (NumCast::from(self.x), NumCast::from(self.y)) {
|
||||
(Some(x), Some(y)) => Some(point2(x, y)),
|
||||
_ => None
|
||||
}
|
||||
}
|
||||
|
||||
// Convenience functions for common casts
|
||||
|
||||
/// Cast into an `f32` point.
|
||||
#[inline]
|
||||
pub fn to_f32(&self) -> TypedPoint2D<f32, U> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
|
||||
/// Cast into an `usize` point, truncating decimals if any.
|
||||
///
|
||||
/// When casting from floating point points, it is worth considering whether
|
||||
/// to `round()`, `ceil()` or `floor()` before the cast in order to obtain
|
||||
/// the desired conversion behavior.
|
||||
#[inline]
|
||||
pub fn to_usize(&self) -> TypedPoint2D<usize, U> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
|
||||
/// Cast into an i32 point, truncating decimals if any.
|
||||
///
|
||||
/// When casting from floating point points, it is worth considering whether
|
||||
/// to `round()`, `ceil()` or `floor()` before the cast in order to obtain
|
||||
/// the desired conversion behavior.
|
||||
#[inline]
|
||||
pub fn to_i32(&self) -> TypedPoint2D<i32, U> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
|
||||
/// Cast into an i64 point, truncating decimals if any.
|
||||
///
|
||||
/// When casting from floating point points, it is worth considering whether
|
||||
/// to `round()`, `ceil()` or `floor()` before the cast in order to obtain
|
||||
/// the desired conversion behavior.
|
||||
#[inline]
|
||||
pub fn to_i64(&self) -> TypedPoint2D<i64, U> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, U> TypedPoint2D<T, U>
|
||||
where T: Copy + One + Add<Output=T> + Sub<Output=T> + Mul<Output=T> {
|
||||
/// Linearly interpolate between this point and another point.
|
||||
///
|
||||
/// `t` is expected to be between zero and one.
|
||||
#[inline]
|
||||
pub fn lerp(&self, other: Self, t: T) -> Self {
|
||||
let one_t = T::one() - t;
|
||||
point2(
|
||||
one_t * self.x + t * other.x,
|
||||
one_t * self.y + t * other.y,
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy+ApproxEq<T>, U> ApproxEq<TypedPoint2D<T, U>> for TypedPoint2D<T, U> {
|
||||
#[inline]
|
||||
fn approx_epsilon() -> Self {
|
||||
point2(T::approx_epsilon(), T::approx_epsilon())
|
||||
}
|
||||
|
||||
#[inline]
|
||||
fn approx_eq(&self, other: &Self) -> bool {
|
||||
self.x.approx_eq(&other.x) && self.y.approx_eq(&other.y)
|
||||
}
|
||||
|
||||
#[inline]
|
||||
fn approx_eq_eps(&self, other: &Self, eps: &Self) -> bool {
|
||||
self.x.approx_eq_eps(&other.x, &eps.x) && self.y.approx_eq_eps(&other.y, &eps.y)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy, U> Into<[T; 2]> for TypedPoint2D<T, U> {
|
||||
fn into(self) -> [T; 2] {
|
||||
self.to_array()
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy, U> From<[T; 2]> for TypedPoint2D<T, U> {
|
||||
fn from(array: [T; 2]) -> Self {
|
||||
point2(array[0], array[1])
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
define_matrix! {
|
||||
/// A 3d Point tagged with a unit.
|
||||
pub struct TypedPoint3D<T, U> {
|
||||
pub x: T,
|
||||
pub y: T,
|
||||
pub z: T,
|
||||
}
|
||||
}
|
||||
|
||||
/// Default 3d point type with no unit.
|
||||
///
|
||||
/// `Point3D` provides the same methods as `TypedPoint3D`.
|
||||
pub type Point3D<T> = TypedPoint3D<T, UnknownUnit>;
|
||||
|
||||
impl<T: Copy + Zero, U> TypedPoint3D<T, U> {
|
||||
/// Constructor, setting all copmonents to zero.
|
||||
#[inline]
|
||||
pub fn origin() -> Self {
|
||||
point3(Zero::zero(), Zero::zero(), Zero::zero())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + One, U> TypedPoint3D<T, U> {
|
||||
#[inline]
|
||||
pub fn to_array_4d(&self) -> [T; 4] {
|
||||
[self.x, self.y, self.z, One::one()]
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, U> TypedPoint3D<T, U>
|
||||
where T: Copy + One + Add<Output=T> + Sub<Output=T> + Mul<Output=T> {
|
||||
/// Linearly interpolate between this point and another point.
|
||||
///
|
||||
/// `t` is expected to be between zero and one.
|
||||
#[inline]
|
||||
pub fn lerp(&self, other: Self, t: T) -> Self {
|
||||
let one_t = T::one() - t;
|
||||
point3(
|
||||
one_t * self.x + t * other.x,
|
||||
one_t * self.y + t * other.y,
|
||||
one_t * self.z + t * other.z,
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: fmt::Debug, U> fmt::Debug for TypedPoint3D<T, U> {
|
||||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||
write!(f, "({:?},{:?},{:?})", self.x, self.y, self.z)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: fmt::Display, U> fmt::Display for TypedPoint3D<T, U> {
|
||||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||
write!(f, "({},{},{})", self.x, self.y, self.z)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy, U> TypedPoint3D<T, U> {
|
||||
/// Constructor taking scalar values directly.
|
||||
#[inline]
|
||||
pub fn new(x: T, y: T, z: T) -> Self {
|
||||
TypedPoint3D { x: x, y: y, z: z, _unit: PhantomData }
|
||||
}
|
||||
|
||||
/// Constructor taking properly typed Lengths instead of scalar values.
|
||||
#[inline]
|
||||
pub fn from_lengths(x: Length<T, U>, y: Length<T, U>, z: Length<T, U>) -> Self {
|
||||
point3(x.0, y.0, z.0)
|
||||
}
|
||||
|
||||
/// Cast this point into a vector.
|
||||
///
|
||||
/// Equivalent to substracting the origin to this point.
|
||||
#[inline]
|
||||
pub fn to_vector(&self) -> TypedVector3D<T, U> {
|
||||
vec3(self.x, self.y, self.z)
|
||||
}
|
||||
|
||||
/// Returns a 2d point using this point's x and y coordinates
|
||||
#[inline]
|
||||
pub fn xy(&self) -> TypedPoint2D<T, U> {
|
||||
point2(self.x, self.y)
|
||||
}
|
||||
|
||||
/// Returns a 2d point using this point's x and z coordinates
|
||||
#[inline]
|
||||
pub fn xz(&self) -> TypedPoint2D<T, U> {
|
||||
point2(self.x, self.z)
|
||||
}
|
||||
|
||||
/// Returns a 2d point using this point's x and z coordinates
|
||||
#[inline]
|
||||
pub fn yz(&self) -> TypedPoint2D<T, U> {
|
||||
point2(self.y, self.z)
|
||||
}
|
||||
|
||||
/// Returns self.x as a Length carrying the unit.
|
||||
#[inline]
|
||||
pub fn x_typed(&self) -> Length<T, U> { Length::new(self.x) }
|
||||
|
||||
/// Returns self.y as a Length carrying the unit.
|
||||
#[inline]
|
||||
pub fn y_typed(&self) -> Length<T, U> { Length::new(self.y) }
|
||||
|
||||
/// Returns self.z as a Length carrying the unit.
|
||||
#[inline]
|
||||
pub fn z_typed(&self) -> Length<T, U> { Length::new(self.z) }
|
||||
|
||||
#[inline]
|
||||
pub fn to_array(&self) -> [T; 3] { [self.x, self.y, self.z] }
|
||||
|
||||
/// Drop the units, preserving only the numeric value.
|
||||
#[inline]
|
||||
pub fn to_untyped(&self) -> Point3D<T> {
|
||||
point3(self.x, self.y, self.z)
|
||||
}
|
||||
|
||||
/// Tag a unitless value with units.
|
||||
#[inline]
|
||||
pub fn from_untyped(p: &Point3D<T>) -> Self {
|
||||
point3(p.x, p.y, p.z)
|
||||
}
|
||||
|
||||
/// Convert into a 2d point.
|
||||
#[inline]
|
||||
pub fn to_2d(&self) -> TypedPoint2D<T, U> {
|
||||
self.xy()
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Add<T, Output=T>, U> AddAssign<TypedVector3D<T, U>> for TypedPoint3D<T, U> {
|
||||
#[inline]
|
||||
fn add_assign(&mut self, other: TypedVector3D<T, U>) {
|
||||
*self = *self + other
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Sub<T, Output=T>, U> SubAssign<TypedVector3D<T, U>> for TypedPoint3D<T, U> {
|
||||
#[inline]
|
||||
fn sub_assign(&mut self, other: TypedVector3D<T, U>) {
|
||||
*self = *self - other
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Add<T, Output=T>, U> Add<TypedVector3D<T, U>> for TypedPoint3D<T, U> {
|
||||
type Output = Self;
|
||||
#[inline]
|
||||
fn add(self, other: TypedVector3D<T, U>) -> Self {
|
||||
point3(self.x + other.x, self.y + other.y, self.z + other.z)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Sub<T, Output=T>, U> Sub for TypedPoint3D<T, U> {
|
||||
type Output = TypedVector3D<T, U>;
|
||||
#[inline]
|
||||
fn sub(self, other: Self) -> TypedVector3D<T, U> {
|
||||
vec3(self.x - other.x, self.y - other.y, self.z - other.z)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Sub<T, Output=T>, U> Sub<TypedVector3D<T, U>> for TypedPoint3D<T, U> {
|
||||
type Output = Self;
|
||||
#[inline]
|
||||
fn sub(self, other: TypedVector3D<T, U>) -> Self {
|
||||
point3(self.x - other.x, self.y - other.y, self.z - other.z)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Mul<T, Output=T>, U> Mul<T> for TypedPoint3D<T, U> {
|
||||
type Output = Self;
|
||||
#[inline]
|
||||
fn mul(self, scale: T) -> Self {
|
||||
point3(self.x * scale, self.y * scale, self.z * scale)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Div<T, Output=T>, U> Div<T> for TypedPoint3D<T, U> {
|
||||
type Output = Self;
|
||||
#[inline]
|
||||
fn div(self, scale: T) -> Self {
|
||||
point3(self.x / scale, self.y / scale, self.z / scale)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Float, U> TypedPoint3D<T, U> {
|
||||
#[inline]
|
||||
pub fn min(self, other: Self) -> Self {
|
||||
point3(self.x.min(other.x), self.y.min(other.y), self.z.min(other.z))
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn max(self, other: Self) -> Self {
|
||||
point3(self.x.max(other.x), self.y.max(other.y), self.z.max(other.z))
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Round, U> TypedPoint3D<T, U> {
|
||||
/// Rounds each component to the nearest integer value.
|
||||
///
|
||||
/// This behavior is preserved for negative values (unlike the basic cast).
|
||||
#[inline]
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn round(&self) -> Self {
|
||||
point3(self.x.round(), self.y.round(), self.z.round())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Ceil, U> TypedPoint3D<T, U> {
|
||||
/// Rounds each component to the smallest integer equal or greater than the original value.
|
||||
///
|
||||
/// This behavior is preserved for negative values (unlike the basic cast).
|
||||
#[inline]
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn ceil(&self) -> Self {
|
||||
point3(self.x.ceil(), self.y.ceil(), self.z.ceil())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Floor, U> TypedPoint3D<T, U> {
|
||||
/// Rounds each component to the biggest integer equal or lower than the original value.
|
||||
///
|
||||
/// This behavior is preserved for negative values (unlike the basic cast).
|
||||
#[inline]
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn floor(&self) -> Self {
|
||||
point3(self.x.floor(), self.y.floor(), self.z.floor())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: NumCast + Copy, U> TypedPoint3D<T, U> {
|
||||
/// Cast from one numeric representation to another, preserving the units.
|
||||
///
|
||||
/// When casting from floating point to integer coordinates, the decimals are truncated
|
||||
/// as one would expect from a simple cast, but this behavior does not always make sense
|
||||
/// geometrically. Consider using round(), ceil or floor() before casting.
|
||||
#[inline]
|
||||
pub fn cast<NewT: NumCast + Copy>(&self) -> Option<TypedPoint3D<NewT, U>> {
|
||||
match (NumCast::from(self.x),
|
||||
NumCast::from(self.y),
|
||||
NumCast::from(self.z)) {
|
||||
(Some(x), Some(y), Some(z)) => Some(point3(x, y, z)),
|
||||
_ => None
|
||||
}
|
||||
}
|
||||
|
||||
// Convenience functions for common casts
|
||||
|
||||
/// Cast into an `f32` point.
|
||||
#[inline]
|
||||
pub fn to_f32(&self) -> TypedPoint3D<f32, U> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
|
||||
/// Cast into an `usize` point, truncating decimals if any.
|
||||
///
|
||||
/// When casting from floating point points, it is worth considering whether
|
||||
/// to `round()`, `ceil()` or `floor()` before the cast in order to obtain
|
||||
/// the desired conversion behavior.
|
||||
#[inline]
|
||||
pub fn to_usize(&self) -> TypedPoint3D<usize, U> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
|
||||
/// Cast into an `i32` point, truncating decimals if any.
|
||||
///
|
||||
/// When casting from floating point points, it is worth considering whether
|
||||
/// to `round()`, `ceil()` or `floor()` before the cast in order to obtain
|
||||
/// the desired conversion behavior.
|
||||
#[inline]
|
||||
pub fn to_i32(&self) -> TypedPoint3D<i32, U> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
|
||||
/// Cast into an `i64` point, truncating decimals if any.
|
||||
///
|
||||
/// When casting from floating point points, it is worth considering whether
|
||||
/// to `round()`, `ceil()` or `floor()` before the cast in order to obtain
|
||||
/// the desired conversion behavior.
|
||||
#[inline]
|
||||
pub fn to_i64(&self) -> TypedPoint3D<i64, U> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy+ApproxEq<T>, U> ApproxEq<TypedPoint3D<T, U>> for TypedPoint3D<T, U> {
|
||||
#[inline]
|
||||
fn approx_epsilon() -> Self {
|
||||
point3(T::approx_epsilon(), T::approx_epsilon(), T::approx_epsilon())
|
||||
}
|
||||
|
||||
#[inline]
|
||||
fn approx_eq(&self, other: &Self) -> bool {
|
||||
self.x.approx_eq(&other.x)
|
||||
&& self.y.approx_eq(&other.y)
|
||||
&& self.z.approx_eq(&other.z)
|
||||
}
|
||||
|
||||
#[inline]
|
||||
fn approx_eq_eps(&self, other: &Self, eps: &Self) -> bool {
|
||||
self.x.approx_eq_eps(&other.x, &eps.x)
|
||||
&& self.y.approx_eq_eps(&other.y, &eps.y)
|
||||
&& self.z.approx_eq_eps(&other.z, &eps.z)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy, U> Into<[T; 3]> for TypedPoint3D<T, U> {
|
||||
fn into(self) -> [T; 3] {
|
||||
self.to_array()
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy, U> From<[T; 3]> for TypedPoint3D<T, U> {
|
||||
fn from(array: [T; 3]) -> Self {
|
||||
point3(array[0], array[1], array[2])
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
pub fn point2<T: Copy, U>(x: T, y: T) -> TypedPoint2D<T, U> {
|
||||
TypedPoint2D::new(x, y)
|
||||
}
|
||||
|
||||
pub fn point3<T: Copy, U>(x: T, y: T, z: T) -> TypedPoint3D<T, U> {
|
||||
TypedPoint3D::new(x, y, z)
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod point2d {
|
||||
use super::Point2D;
|
||||
|
||||
#[test]
|
||||
pub fn test_scalar_mul() {
|
||||
let p1: Point2D<f32> = Point2D::new(3.0, 5.0);
|
||||
|
||||
let result = p1 * 5.0;
|
||||
|
||||
assert_eq!(result, Point2D::new(15.0, 25.0));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_min() {
|
||||
let p1 = Point2D::new(1.0, 3.0);
|
||||
let p2 = Point2D::new(2.0, 2.0);
|
||||
|
||||
let result = p1.min(p2);
|
||||
|
||||
assert_eq!(result, Point2D::new(1.0, 2.0));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_max() {
|
||||
let p1 = Point2D::new(1.0, 3.0);
|
||||
let p2 = Point2D::new(2.0, 2.0);
|
||||
|
||||
let result = p1.max(p2);
|
||||
|
||||
assert_eq!(result, Point2D::new(2.0, 3.0));
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod typedpoint2d {
|
||||
use super::{TypedPoint2D, Point2D, point2};
|
||||
use scale_factor::ScaleFactor;
|
||||
use vector::vec2;
|
||||
|
||||
pub enum Mm {}
|
||||
pub enum Cm {}
|
||||
|
||||
pub type Point2DMm<T> = TypedPoint2D<T, Mm>;
|
||||
pub type Point2DCm<T> = TypedPoint2D<T, Cm>;
|
||||
|
||||
#[test]
|
||||
pub fn test_add() {
|
||||
let p1 = Point2DMm::new(1.0, 2.0);
|
||||
let p2 = vec2(3.0, 4.0);
|
||||
|
||||
let result = p1 + p2;
|
||||
|
||||
assert_eq!(result, Point2DMm::new(4.0, 6.0));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_add_assign() {
|
||||
let mut p1 = Point2DMm::new(1.0, 2.0);
|
||||
p1 += vec2(3.0, 4.0);
|
||||
|
||||
assert_eq!(p1, Point2DMm::new(4.0, 6.0));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_scalar_mul() {
|
||||
let p1 = Point2DMm::new(1.0, 2.0);
|
||||
let cm_per_mm: ScaleFactor<f32, Mm, Cm> = ScaleFactor::new(0.1);
|
||||
|
||||
let result = p1 * cm_per_mm;
|
||||
|
||||
assert_eq!(result, Point2DCm::new(0.1, 0.2));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_conv_vector() {
|
||||
use {Point2D, point2};
|
||||
|
||||
for i in 0..100 {
|
||||
// We don't care about these values as long as they are not the same.
|
||||
let x = i as f32 *0.012345;
|
||||
let y = i as f32 *0.987654;
|
||||
let p: Point2D<f32> = point2(x, y);
|
||||
assert_eq!(p.to_vector().to_point(), p);
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_swizzling() {
|
||||
let p: Point2D<i32> = point2(1, 2);
|
||||
assert_eq!(p.yx(), point2(2, 1));
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod point3d {
|
||||
use super::{Point3D, point2, point3};
|
||||
|
||||
#[test]
|
||||
pub fn test_min() {
|
||||
let p1 = Point3D::new(1.0, 3.0, 5.0);
|
||||
let p2 = Point3D::new(2.0, 2.0, -1.0);
|
||||
|
||||
let result = p1.min(p2);
|
||||
|
||||
assert_eq!(result, Point3D::new(1.0, 2.0, -1.0));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_max() {
|
||||
let p1 = Point3D::new(1.0, 3.0, 5.0);
|
||||
let p2 = Point3D::new(2.0, 2.0, -1.0);
|
||||
|
||||
let result = p1.max(p2);
|
||||
|
||||
assert_eq!(result, Point3D::new(2.0, 3.0, 5.0));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_conv_vector() {
|
||||
use point3;
|
||||
for i in 0..100 {
|
||||
// We don't care about these values as long as they are not the same.
|
||||
let x = i as f32 *0.012345;
|
||||
let y = i as f32 *0.987654;
|
||||
let z = x * y;
|
||||
let p: Point3D<f32> = point3(x, y, z);
|
||||
assert_eq!(p.to_vector().to_point(), p);
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_swizzling() {
|
||||
let p: Point3D<i32> = point3(1, 2, 3);
|
||||
assert_eq!(p.xy(), point2(1, 2));
|
||||
assert_eq!(p.xz(), point2(1, 3));
|
||||
assert_eq!(p.yz(), point2(2, 3));
|
||||
}
|
||||
}
|
700
third_party/rust/euclid-0.15.5/src/rect.rs
vendored
Normal file
700
third_party/rust/euclid-0.15.5/src/rect.rs
vendored
Normal file
@ -0,0 +1,700 @@
|
||||
// Copyright 2013 The Servo Project Developers. See the COPYRIGHT
|
||||
// file at the top-level directory of this distribution.
|
||||
//
|
||||
// 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.
|
||||
|
||||
use super::UnknownUnit;
|
||||
use length::Length;
|
||||
use scale_factor::ScaleFactor;
|
||||
use num::*;
|
||||
use point::TypedPoint2D;
|
||||
use vector::TypedVector2D;
|
||||
use size::TypedSize2D;
|
||||
|
||||
use heapsize::HeapSizeOf;
|
||||
use num_traits::NumCast;
|
||||
use serde::{Deserialize, Deserializer, Serialize, Serializer};
|
||||
use std::cmp::PartialOrd;
|
||||
use std::fmt;
|
||||
use std::hash::{Hash, Hasher};
|
||||
use std::ops::{Add, Sub, Mul, Div};
|
||||
|
||||
/// A 2d Rectangle optionally tagged with a unit.
|
||||
#[repr(C)]
|
||||
pub struct TypedRect<T, U = UnknownUnit> {
|
||||
pub origin: TypedPoint2D<T, U>,
|
||||
pub size: TypedSize2D<T, U>,
|
||||
}
|
||||
|
||||
/// The default rectangle type with no unit.
|
||||
pub type Rect<T> = TypedRect<T, UnknownUnit>;
|
||||
|
||||
impl<T: HeapSizeOf, U> HeapSizeOf for TypedRect<T, U> {
|
||||
fn heap_size_of_children(&self) -> usize {
|
||||
self.origin.heap_size_of_children() + self.size.heap_size_of_children()
|
||||
}
|
||||
}
|
||||
|
||||
impl<'de, T: Copy + Deserialize<'de>, U> Deserialize<'de> for TypedRect<T, U> {
|
||||
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
|
||||
where D: Deserializer<'de>
|
||||
{
|
||||
let (origin, size) = try!(Deserialize::deserialize(deserializer));
|
||||
Ok(TypedRect::new(origin, size))
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Serialize, U> Serialize for TypedRect<T, U> {
|
||||
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
|
||||
where S: Serializer
|
||||
{
|
||||
(&self.origin, &self.size).serialize(serializer)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Hash, U> Hash for TypedRect<T, U>
|
||||
{
|
||||
fn hash<H: Hasher>(&self, h: &mut H) {
|
||||
self.origin.hash(h);
|
||||
self.size.hash(h);
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy, U> Copy for TypedRect<T, U> {}
|
||||
|
||||
impl<T: Copy, U> Clone for TypedRect<T, U> {
|
||||
fn clone(&self) -> Self { *self }
|
||||
}
|
||||
|
||||
impl<T: PartialEq, U> PartialEq<TypedRect<T, U>> for TypedRect<T, U> {
|
||||
fn eq(&self, other: &Self) -> bool {
|
||||
self.origin.eq(&other.origin) && self.size.eq(&other.size)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Eq, U> Eq for TypedRect<T, U> {}
|
||||
|
||||
impl<T: fmt::Debug, U> fmt::Debug for TypedRect<T, U> {
|
||||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||
write!(f, "TypedRect({:?} at {:?})", self.size, self.origin)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: fmt::Display, U> fmt::Display for TypedRect<T, U> {
|
||||
fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
|
||||
write!(formatter, "Rect({} at {})", self.size, self.origin)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, U> TypedRect<T, U> {
|
||||
/// Constructor.
|
||||
pub fn new(origin: TypedPoint2D<T, U>, size: TypedSize2D<T, U>) -> Self {
|
||||
TypedRect {
|
||||
origin: origin,
|
||||
size: size,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, U> TypedRect<T, U>
|
||||
where T: Copy + Clone + Zero + PartialOrd + PartialEq + Add<T, Output=T> + Sub<T, Output=T> {
|
||||
#[inline]
|
||||
pub fn intersects(&self, other: &Self) -> bool {
|
||||
self.origin.x < other.origin.x + other.size.width &&
|
||||
other.origin.x < self.origin.x + self.size.width &&
|
||||
self.origin.y < other.origin.y + other.size.height &&
|
||||
other.origin.y < self.origin.y + self.size.height
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn max_x(&self) -> T {
|
||||
self.origin.x + self.size.width
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn min_x(&self) -> T {
|
||||
self.origin.x
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn max_y(&self) -> T {
|
||||
self.origin.y + self.size.height
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn min_y(&self) -> T {
|
||||
self.origin.y
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn max_x_typed(&self) -> Length<T, U> {
|
||||
Length::new(self.max_x())
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn min_x_typed(&self) -> Length<T, U> {
|
||||
Length::new(self.min_x())
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn max_y_typed(&self) -> Length<T, U> {
|
||||
Length::new(self.max_y())
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn min_y_typed(&self) -> Length<T, U> {
|
||||
Length::new(self.min_y())
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn intersection(&self, other: &Self) -> Option<Self> {
|
||||
if !self.intersects(other) {
|
||||
return None;
|
||||
}
|
||||
|
||||
let upper_left = TypedPoint2D::new(max(self.min_x(), other.min_x()),
|
||||
max(self.min_y(), other.min_y()));
|
||||
let lower_right_x = min(self.max_x(), other.max_x());
|
||||
let lower_right_y = min(self.max_y(), other.max_y());
|
||||
|
||||
Some(TypedRect::new(upper_left, TypedSize2D::new(lower_right_x - upper_left.x,
|
||||
lower_right_y - upper_left.y)))
|
||||
}
|
||||
|
||||
/// Returns the same rectangle, translated by a vector.
|
||||
#[inline]
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn translate(&self, by: &TypedVector2D<T, U>) -> Self {
|
||||
Self::new(self.origin + *by, self.size)
|
||||
}
|
||||
|
||||
/// Returns true if this rectangle contains the point. Points are considered
|
||||
/// in the rectangle if they are on the left or top edge, but outside if they
|
||||
/// are on the right or bottom edge.
|
||||
#[inline]
|
||||
pub fn contains(&self, other: &TypedPoint2D<T, U>) -> bool {
|
||||
self.origin.x <= other.x && other.x < self.origin.x + self.size.width &&
|
||||
self.origin.y <= other.y && other.y < self.origin.y + self.size.height
|
||||
}
|
||||
|
||||
/// Returns true if this rectangle contains the interior of rect. Always
|
||||
/// returns true if rect is empty, and always returns false if rect is
|
||||
/// nonempty but this rectangle is empty.
|
||||
#[inline]
|
||||
pub fn contains_rect(&self, rect: &Self) -> bool {
|
||||
rect.is_empty() ||
|
||||
(self.min_x() <= rect.min_x() && rect.max_x() <= self.max_x() &&
|
||||
self.min_y() <= rect.min_y() && rect.max_y() <= self.max_y())
|
||||
}
|
||||
|
||||
#[inline]
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn inflate(&self, width: T, height: T) -> Self {
|
||||
TypedRect::new(
|
||||
TypedPoint2D::new(self.origin.x - width, self.origin.y - height),
|
||||
TypedSize2D::new(self.size.width + width + width, self.size.height + height + height),
|
||||
)
|
||||
}
|
||||
|
||||
#[inline]
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn inflate_typed(&self, width: Length<T, U>, height: Length<T, U>) -> Self {
|
||||
self.inflate(width.get(), height.get())
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn top_right(&self) -> TypedPoint2D<T, U> {
|
||||
TypedPoint2D::new(self.max_x(), self.origin.y)
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn bottom_left(&self) -> TypedPoint2D<T, U> {
|
||||
TypedPoint2D::new(self.origin.x, self.max_y())
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn bottom_right(&self) -> TypedPoint2D<T, U> {
|
||||
TypedPoint2D::new(self.max_x(), self.max_y())
|
||||
}
|
||||
|
||||
#[inline]
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn translate_by_size(&self, size: &TypedSize2D<T, U>) -> Self {
|
||||
self.translate(&size.to_vector())
|
||||
}
|
||||
|
||||
/// Returns the smallest rectangle containing the four points.
|
||||
pub fn from_points(points: &[TypedPoint2D<T, U>]) -> Self {
|
||||
if points.len() == 0 {
|
||||
return TypedRect::zero();
|
||||
}
|
||||
let (mut min_x, mut min_y) = (points[0].x, points[0].y);
|
||||
let (mut max_x, mut max_y) = (min_x, min_y);
|
||||
for point in &points[1..] {
|
||||
if point.x < min_x {
|
||||
min_x = point.x
|
||||
}
|
||||
if point.x > max_x {
|
||||
max_x = point.x
|
||||
}
|
||||
if point.y < min_y {
|
||||
min_y = point.y
|
||||
}
|
||||
if point.y > max_y {
|
||||
max_y = point.y
|
||||
}
|
||||
}
|
||||
TypedRect::new(TypedPoint2D::new(min_x, min_y),
|
||||
TypedSize2D::new(max_x - min_x, max_y - min_y))
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, U> TypedRect<T, U>
|
||||
where T: Copy + One + Add<Output=T> + Sub<Output=T> + Mul<Output=T> {
|
||||
/// Linearly interpolate between this rectangle and another rectange.
|
||||
///
|
||||
/// `t` is expected to be between zero and one.
|
||||
#[inline]
|
||||
pub fn lerp(&self, other: Self, t: T) -> Self {
|
||||
Self::new(
|
||||
self.origin.lerp(other.origin, t),
|
||||
self.size.lerp(other.size, t),
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, U> TypedRect<T, U>
|
||||
where T: Copy + Clone + PartialOrd + Add<T, Output=T> + Sub<T, Output=T> + Zero {
|
||||
#[inline]
|
||||
pub fn union(&self, other: &Self) -> Self {
|
||||
if self.size == Zero::zero() {
|
||||
return *other;
|
||||
}
|
||||
if other.size == Zero::zero() {
|
||||
return *self;
|
||||
}
|
||||
|
||||
let upper_left = TypedPoint2D::new(min(self.min_x(), other.min_x()),
|
||||
min(self.min_y(), other.min_y()));
|
||||
|
||||
let lower_right_x = max(self.max_x(), other.max_x());
|
||||
let lower_right_y = max(self.max_y(), other.max_y());
|
||||
|
||||
TypedRect::new(
|
||||
upper_left,
|
||||
TypedSize2D::new(lower_right_x - upper_left.x, lower_right_y - upper_left.y)
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, U> TypedRect<T, U> {
|
||||
#[inline]
|
||||
pub fn scale<Scale: Copy>(&self, x: Scale, y: Scale) -> Self
|
||||
where T: Copy + Clone + Mul<Scale, Output=T> {
|
||||
TypedRect::new(
|
||||
TypedPoint2D::new(self.origin.x * x, self.origin.y * y),
|
||||
TypedSize2D::new(self.size.width * x, self.size.height * y)
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + PartialEq + Zero, U> TypedRect<T, U> {
|
||||
/// Constructor, setting all sides to zero.
|
||||
pub fn zero() -> Self {
|
||||
TypedRect::new(
|
||||
TypedPoint2D::origin(),
|
||||
TypedSize2D::zero(),
|
||||
)
|
||||
}
|
||||
|
||||
/// Returns true if the size is zero, regardless of the origin's value.
|
||||
pub fn is_empty(&self) -> bool {
|
||||
self.size.width == Zero::zero() || self.size.height == Zero::zero()
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
pub fn min<T: Clone + PartialOrd>(x: T, y: T) -> T {
|
||||
if x <= y { x } else { y }
|
||||
}
|
||||
|
||||
pub fn max<T: Clone + PartialOrd>(x: T, y: T) -> T {
|
||||
if x >= y { x } else { y }
|
||||
}
|
||||
|
||||
impl<T: Copy + Mul<T, Output=T>, U> Mul<T> for TypedRect<T, U> {
|
||||
type Output = Self;
|
||||
#[inline]
|
||||
fn mul(self, scale: T) -> Self {
|
||||
TypedRect::new(self.origin * scale, self.size * scale)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Div<T, Output=T>, U> Div<T> for TypedRect<T, U> {
|
||||
type Output = Self;
|
||||
#[inline]
|
||||
fn div(self, scale: T) -> Self {
|
||||
TypedRect::new(self.origin / scale, self.size / scale)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Mul<T, Output=T>, U1, U2> Mul<ScaleFactor<T, U1, U2>> for TypedRect<T, U1> {
|
||||
type Output = TypedRect<T, U2>;
|
||||
#[inline]
|
||||
fn mul(self, scale: ScaleFactor<T, U1, U2>) -> TypedRect<T, U2> {
|
||||
TypedRect::new(self.origin * scale, self.size * scale)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Div<T, Output=T>, U1, U2> Div<ScaleFactor<T, U1, U2>> for TypedRect<T, U2> {
|
||||
type Output = TypedRect<T, U1>;
|
||||
#[inline]
|
||||
fn div(self, scale: ScaleFactor<T, U1, U2>) -> TypedRect<T, U1> {
|
||||
TypedRect::new(self.origin / scale, self.size / scale)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy, Unit> TypedRect<T, Unit> {
|
||||
/// Drop the units, preserving only the numeric value.
|
||||
pub fn to_untyped(&self) -> Rect<T> {
|
||||
TypedRect::new(self.origin.to_untyped(), self.size.to_untyped())
|
||||
}
|
||||
|
||||
/// Tag a unitless value with units.
|
||||
pub fn from_untyped(r: &Rect<T>) -> TypedRect<T, Unit> {
|
||||
TypedRect::new(TypedPoint2D::from_untyped(&r.origin), TypedSize2D::from_untyped(&r.size))
|
||||
}
|
||||
}
|
||||
|
||||
impl<T0: NumCast + Copy, Unit> TypedRect<T0, Unit> {
|
||||
/// Cast from one numeric representation to another, preserving the units.
|
||||
///
|
||||
/// When casting from floating point to integer coordinates, the decimals are truncated
|
||||
/// as one would expect from a simple cast, but this behavior does not always make sense
|
||||
/// geometrically. Consider using round(), round_in or round_out() before casting.
|
||||
pub fn cast<T1: NumCast + Copy>(&self) -> Option<TypedRect<T1, Unit>> {
|
||||
match (self.origin.cast(), self.size.cast()) {
|
||||
(Some(origin), Some(size)) => Some(TypedRect::new(origin, size)),
|
||||
_ => None
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Floor + Ceil + Round + Add<T, Output=T> + Sub<T, Output=T>, U> TypedRect<T, U> {
|
||||
/// Return a rectangle with edges rounded to integer coordinates, such that
|
||||
/// the returned rectangle has the same set of pixel centers as the original
|
||||
/// one.
|
||||
/// Edges at offset 0.5 round up.
|
||||
/// Suitable for most places where integral device coordinates
|
||||
/// are needed, but note that any translation should be applied first to
|
||||
/// avoid pixel rounding errors.
|
||||
/// Note that this is *not* rounding to nearest integer if the values are negative.
|
||||
/// They are always rounding as floor(n + 0.5).
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn round(&self) -> Self {
|
||||
let origin = self.origin.round();
|
||||
let size = self.origin.add_size(&self.size).round() - origin;
|
||||
TypedRect::new(origin, TypedSize2D::new(size.x, size.y))
|
||||
}
|
||||
|
||||
/// Return a rectangle with edges rounded to integer coordinates, such that
|
||||
/// the original rectangle contains the resulting rectangle.
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn round_in(&self) -> Self {
|
||||
let origin = self.origin.ceil();
|
||||
let size = self.origin.add_size(&self.size).floor() - origin;
|
||||
TypedRect::new(origin, TypedSize2D::new(size.x, size.y))
|
||||
}
|
||||
|
||||
/// Return a rectangle with edges rounded to integer coordinates, such that
|
||||
/// the original rectangle is contained in the resulting rectangle.
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn round_out(&self) -> Self {
|
||||
let origin = self.origin.floor();
|
||||
let size = self.origin.add_size(&self.size).ceil() - origin;
|
||||
TypedRect::new(origin, TypedSize2D::new(size.x, size.y))
|
||||
}
|
||||
}
|
||||
|
||||
// Convenience functions for common casts
|
||||
impl<T: NumCast + Copy, Unit> TypedRect<T, Unit> {
|
||||
/// Cast into an `f32` rectangle.
|
||||
pub fn to_f32(&self) -> TypedRect<f32, Unit> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
|
||||
/// Cast into an `usize` rectangle, truncating decimals if any.
|
||||
///
|
||||
/// When casting from floating point rectangles, it is worth considering whether
|
||||
/// to `round()`, `round_in()` or `round_out()` before the cast in order to
|
||||
/// obtain the desired conversion behavior.
|
||||
pub fn to_usize(&self) -> TypedRect<usize, Unit> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
|
||||
/// Cast into an `i32` rectangle, truncating decimals if any.
|
||||
///
|
||||
/// When casting from floating point rectangles, it is worth considering whether
|
||||
/// to `round()`, `round_in()` or `round_out()` before the cast in order to
|
||||
/// obtain the desired conversion behavior.
|
||||
pub fn to_i32(&self) -> TypedRect<i32, Unit> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
|
||||
/// Cast into an `i64` rectangle, truncating decimals if any.
|
||||
///
|
||||
/// When casting from floating point rectangles, it is worth considering whether
|
||||
/// to `round()`, `round_in()` or `round_out()` before the cast in order to
|
||||
/// obtain the desired conversion behavior.
|
||||
pub fn to_i64(&self) -> TypedRect<i64, Unit> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
}
|
||||
|
||||
/// Shorthand for `TypedRect::new(TypedPoint2D::new(x, y), TypedSize2D::new(w, h))`.
|
||||
pub fn rect<T: Copy, U>(x: T, y: T, w: T, h: T) -> TypedRect<T, U> {
|
||||
TypedRect::new(TypedPoint2D::new(x, y), TypedSize2D::new(w, h))
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use point::Point2D;
|
||||
use vector::vec2;
|
||||
use size::Size2D;
|
||||
use super::*;
|
||||
|
||||
#[test]
|
||||
fn test_min_max() {
|
||||
assert!(min(0u32, 1u32) == 0u32);
|
||||
assert!(min(-1.0f32, 0.0f32) == -1.0f32);
|
||||
|
||||
assert!(max(0u32, 1u32) == 1u32);
|
||||
assert!(max(-1.0f32, 0.0f32) == 0.0f32);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_translate() {
|
||||
let p = Rect::new(Point2D::new(0u32, 0u32), Size2D::new(50u32, 40u32));
|
||||
let pp = p.translate(&vec2(10,15));
|
||||
|
||||
assert!(pp.size.width == 50);
|
||||
assert!(pp.size.height == 40);
|
||||
assert!(pp.origin.x == 10);
|
||||
assert!(pp.origin.y == 15);
|
||||
|
||||
|
||||
let r = Rect::new(Point2D::new(-10, -5), Size2D::new(50, 40));
|
||||
let rr = r.translate(&vec2(0,-10));
|
||||
|
||||
assert!(rr.size.width == 50);
|
||||
assert!(rr.size.height == 40);
|
||||
assert!(rr.origin.x == -10);
|
||||
assert!(rr.origin.y == -15);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_translate_by_size() {
|
||||
let p = Rect::new(Point2D::new(0u32, 0u32), Size2D::new(50u32, 40u32));
|
||||
let pp = p.translate_by_size(&Size2D::new(10,15));
|
||||
|
||||
assert!(pp.size.width == 50);
|
||||
assert!(pp.size.height == 40);
|
||||
assert!(pp.origin.x == 10);
|
||||
assert!(pp.origin.y == 15);
|
||||
|
||||
|
||||
let r = Rect::new(Point2D::new(-10, -5), Size2D::new(50, 40));
|
||||
let rr = r.translate_by_size(&Size2D::new(0,-10));
|
||||
|
||||
assert!(rr.size.width == 50);
|
||||
assert!(rr.size.height == 40);
|
||||
assert!(rr.origin.x == -10);
|
||||
assert!(rr.origin.y == -15);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_union() {
|
||||
let p = Rect::new(Point2D::new(0, 0), Size2D::new(50, 40));
|
||||
let q = Rect::new(Point2D::new(20,20), Size2D::new(5, 5));
|
||||
let r = Rect::new(Point2D::new(-15, -30), Size2D::new(200, 15));
|
||||
let s = Rect::new(Point2D::new(20, -15), Size2D::new(250, 200));
|
||||
|
||||
let pq = p.union(&q);
|
||||
assert!(pq.origin == Point2D::new(0, 0));
|
||||
assert!(pq.size == Size2D::new(50, 40));
|
||||
|
||||
let pr = p.union(&r);
|
||||
assert!(pr.origin == Point2D::new(-15, -30));
|
||||
assert!(pr.size == Size2D::new(200, 70));
|
||||
|
||||
let ps = p.union(&s);
|
||||
assert!(ps.origin == Point2D::new(0, -15));
|
||||
assert!(ps.size == Size2D::new(270, 200));
|
||||
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_intersection() {
|
||||
let p = Rect::new(Point2D::new(0, 0), Size2D::new(10, 20));
|
||||
let q = Rect::new(Point2D::new(5, 15), Size2D::new(10, 10));
|
||||
let r = Rect::new(Point2D::new(-5, -5), Size2D::new(8, 8));
|
||||
|
||||
let pq = p.intersection(&q);
|
||||
assert!(pq.is_some());
|
||||
let pq = pq.unwrap();
|
||||
assert!(pq.origin == Point2D::new(5, 15));
|
||||
assert!(pq.size == Size2D::new(5, 5));
|
||||
|
||||
let pr = p.intersection(&r);
|
||||
assert!(pr.is_some());
|
||||
let pr = pr.unwrap();
|
||||
assert!(pr.origin == Point2D::new(0, 0));
|
||||
assert!(pr.size == Size2D::new(3, 3));
|
||||
|
||||
let qr = q.intersection(&r);
|
||||
assert!(qr.is_none());
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_contains() {
|
||||
let r = Rect::new(Point2D::new(-20, 15), Size2D::new(100, 200));
|
||||
|
||||
assert!(r.contains(&Point2D::new(0, 50)));
|
||||
assert!(r.contains(&Point2D::new(-10, 200)));
|
||||
|
||||
// The `contains` method is inclusive of the top/left edges, but not the
|
||||
// bottom/right edges.
|
||||
assert!(r.contains(&Point2D::new(-20, 15)));
|
||||
assert!(!r.contains(&Point2D::new(80, 15)));
|
||||
assert!(!r.contains(&Point2D::new(80, 215)));
|
||||
assert!(!r.contains(&Point2D::new(-20, 215)));
|
||||
|
||||
// Points beyond the top-left corner.
|
||||
assert!(!r.contains(&Point2D::new(-25, 15)));
|
||||
assert!(!r.contains(&Point2D::new(-15, 10)));
|
||||
|
||||
// Points beyond the top-right corner.
|
||||
assert!(!r.contains(&Point2D::new(85, 20)));
|
||||
assert!(!r.contains(&Point2D::new(75, 10)));
|
||||
|
||||
// Points beyond the bottom-right corner.
|
||||
assert!(!r.contains(&Point2D::new(85, 210)));
|
||||
assert!(!r.contains(&Point2D::new(75, 220)));
|
||||
|
||||
// Points beyond the bottom-left corner.
|
||||
assert!(!r.contains(&Point2D::new(-25, 210)));
|
||||
assert!(!r.contains(&Point2D::new(-15, 220)));
|
||||
|
||||
let r = Rect::new(Point2D::new(-20.0, 15.0), Size2D::new(100.0, 200.0));
|
||||
assert!(r.contains_rect(&r));
|
||||
assert!(!r.contains_rect(&r.translate(&vec2( 0.1, 0.0))));
|
||||
assert!(!r.contains_rect(&r.translate(&vec2(-0.1, 0.0))));
|
||||
assert!(!r.contains_rect(&r.translate(&vec2( 0.0, 0.1))));
|
||||
assert!(!r.contains_rect(&r.translate(&vec2( 0.0, -0.1))));
|
||||
// Empty rectangles are always considered as contained in other rectangles,
|
||||
// even if their origin is not.
|
||||
let p = Point2D::new(1.0, 1.0);
|
||||
assert!(!r.contains(&p));
|
||||
assert!(r.contains_rect(&Rect::new(p, Size2D::zero())));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_scale() {
|
||||
let p = Rect::new(Point2D::new(0u32, 0u32), Size2D::new(50u32, 40u32));
|
||||
let pp = p.scale(10, 15);
|
||||
|
||||
assert!(pp.size.width == 500);
|
||||
assert!(pp.size.height == 600);
|
||||
assert!(pp.origin.x == 0);
|
||||
assert!(pp.origin.y == 0);
|
||||
|
||||
let r = Rect::new(Point2D::new(-10, -5), Size2D::new(50, 40));
|
||||
let rr = r.scale(1, 20);
|
||||
|
||||
assert!(rr.size.width == 50);
|
||||
assert!(rr.size.height == 800);
|
||||
assert!(rr.origin.x == -10);
|
||||
assert!(rr.origin.y == -100);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_inflate() {
|
||||
let p = Rect::new(Point2D::new(0, 0), Size2D::new(10, 10));
|
||||
let pp = p.inflate(10, 20);
|
||||
|
||||
assert!(pp.size.width == 30);
|
||||
assert!(pp.size.height == 50);
|
||||
assert!(pp.origin.x == -10);
|
||||
assert!(pp.origin.y == -20);
|
||||
|
||||
let r = Rect::new(Point2D::new(0, 0), Size2D::new(10, 20));
|
||||
let rr = r.inflate(-2, -5);
|
||||
|
||||
assert!(rr.size.width == 6);
|
||||
assert!(rr.size.height == 10);
|
||||
assert!(rr.origin.x == 2);
|
||||
assert!(rr.origin.y == 5);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_min_max_x_y() {
|
||||
let p = Rect::new(Point2D::new(0u32, 0u32), Size2D::new(50u32, 40u32));
|
||||
assert!(p.max_y() == 40);
|
||||
assert!(p.min_y() == 0);
|
||||
assert!(p.max_x() == 50);
|
||||
assert!(p.min_x() == 0);
|
||||
|
||||
let r = Rect::new(Point2D::new(-10, -5), Size2D::new(50, 40));
|
||||
assert!(r.max_y() == 35);
|
||||
assert!(r.min_y() == -5);
|
||||
assert!(r.max_x() == 40);
|
||||
assert!(r.min_x() == -10);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_is_empty() {
|
||||
assert!(Rect::new(Point2D::new(0u32, 0u32), Size2D::new(0u32, 0u32)).is_empty());
|
||||
assert!(Rect::new(Point2D::new(0u32, 0u32), Size2D::new(10u32, 0u32)).is_empty());
|
||||
assert!(Rect::new(Point2D::new(0u32, 0u32), Size2D::new(0u32, 10u32)).is_empty());
|
||||
assert!(!Rect::new(Point2D::new(0u32, 0u32), Size2D::new(1u32, 1u32)).is_empty());
|
||||
assert!(Rect::new(Point2D::new(10u32, 10u32), Size2D::new(0u32, 0u32)).is_empty());
|
||||
assert!(Rect::new(Point2D::new(10u32, 10u32), Size2D::new(10u32, 0u32)).is_empty());
|
||||
assert!(Rect::new(Point2D::new(10u32, 10u32), Size2D::new(0u32, 10u32)).is_empty());
|
||||
assert!(!Rect::new(Point2D::new(10u32, 10u32), Size2D::new(1u32, 1u32)).is_empty());
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_round() {
|
||||
let mut x = -2.0;
|
||||
let mut y = -2.0;
|
||||
let mut w = -2.0;
|
||||
let mut h = -2.0;
|
||||
while x < 2.0 {
|
||||
while y < 2.0 {
|
||||
while w < 2.0 {
|
||||
while h < 2.0 {
|
||||
let rect = Rect::new(Point2D::new(x, y), Size2D::new(w, h));
|
||||
|
||||
assert!(rect.contains_rect(&rect.round_in()));
|
||||
assert!(rect.round_in().inflate(1.0, 1.0).contains_rect(&rect));
|
||||
|
||||
assert!(rect.round_out().contains_rect(&rect));
|
||||
assert!(rect.inflate(1.0, 1.0).contains_rect(&rect.round_out()));
|
||||
|
||||
assert!(rect.inflate(1.0, 1.0).contains_rect(&rect.round()));
|
||||
assert!(rect.round().inflate(1.0, 1.0).contains_rect(&rect));
|
||||
|
||||
h += 0.1;
|
||||
}
|
||||
w += 0.1;
|
||||
}
|
||||
y += 0.1;
|
||||
}
|
||||
x += 0.1
|
||||
}
|
||||
}
|
||||
}
|
696
third_party/rust/euclid-0.15.5/src/rotation.rs
vendored
Normal file
696
third_party/rust/euclid-0.15.5/src/rotation.rs
vendored
Normal file
@ -0,0 +1,696 @@
|
||||
// Copyright 2013 The Servo Project Developers. See the COPYRIGHT
|
||||
// file at the top-level directory of this distribution.
|
||||
//
|
||||
// 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.
|
||||
|
||||
use approxeq::ApproxEq;
|
||||
use num_traits::{Float, One, Zero};
|
||||
use std::fmt;
|
||||
use std::ops::{Add, Neg, Mul, Sub, Div};
|
||||
use std::marker::PhantomData;
|
||||
use trig::Trig;
|
||||
use {TypedPoint2D, TypedPoint3D, TypedVector2D, TypedVector3D, Vector3D, point2, point3, vec3};
|
||||
use {TypedTransform3D, TypedTransform2D, UnknownUnit, Radians};
|
||||
|
||||
|
||||
define_matrix! {
|
||||
/// A transform that can represent rotations in 2d, represented as an angle in radians.
|
||||
pub struct TypedRotation2D<T, Src, Dst> {
|
||||
pub angle : T,
|
||||
}
|
||||
}
|
||||
|
||||
/// The default 2d rotation type with no units.
|
||||
pub type Rotation2D<T> = TypedRotation2D<T, UnknownUnit, UnknownUnit>;
|
||||
|
||||
impl<T, Src, Dst> TypedRotation2D<T, Src, Dst> {
|
||||
#[inline]
|
||||
/// Creates a rotation from an angle in radians.
|
||||
pub fn new(angle: Radians<T>) -> Self {
|
||||
TypedRotation2D {
|
||||
angle: angle.0,
|
||||
_unit: PhantomData,
|
||||
}
|
||||
}
|
||||
|
||||
pub fn radians(angle: T) -> Self {
|
||||
Self::new(Radians::new(angle))
|
||||
}
|
||||
|
||||
/// Creates the identity rotation.
|
||||
#[inline]
|
||||
pub fn identity() -> Self where T: Zero {
|
||||
Self::radians(T::zero())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, Src, Dst> TypedRotation2D<T, Src, Dst> where T: Clone
|
||||
{
|
||||
/// Returns self.angle as a strongly typed `Radians<T>`.
|
||||
pub fn get_angle(&self) -> Radians<T> {
|
||||
Radians::new(self.angle.clone())
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
impl<T, Src, Dst> TypedRotation2D<T, Src, Dst>
|
||||
where T: Copy + Clone +
|
||||
Add<T, Output=T> +
|
||||
Sub<T, Output=T> +
|
||||
Mul<T, Output=T> +
|
||||
Div<T, Output=T> +
|
||||
Neg<Output=T> +
|
||||
ApproxEq<T> +
|
||||
PartialOrd +
|
||||
Float +
|
||||
One + Zero
|
||||
{
|
||||
/// Creates a 3d rotation (around the z axis) from this 2d rotation.
|
||||
#[inline]
|
||||
pub fn to_3d(&self) -> TypedRotation3D<T, Src, Dst> {
|
||||
TypedRotation3D::around_z(self.get_angle())
|
||||
}
|
||||
|
||||
/// Returns the inverse of this rotation.
|
||||
#[inline]
|
||||
pub fn inverse(&self) -> TypedRotation2D<T, Dst, Src> {
|
||||
TypedRotation2D::radians(-self.angle)
|
||||
}
|
||||
|
||||
/// Returns a rotation representing the other rotation followed by this rotation.
|
||||
#[inline]
|
||||
pub fn pre_rotate<NewSrc>(&self, other: &TypedRotation2D<T, NewSrc, Src>) -> TypedRotation2D<T, NewSrc, Dst> {
|
||||
TypedRotation2D::radians(self.angle + other.angle)
|
||||
}
|
||||
|
||||
/// Returns a rotation representing this rotation followed by the other rotation.
|
||||
#[inline]
|
||||
pub fn post_rotate<NewDst>(&self, other: &TypedRotation2D<T, Dst, NewDst>) -> TypedRotation2D<T, Src, NewDst> {
|
||||
other.pre_rotate(self)
|
||||
}
|
||||
|
||||
/// Returns the given 2d point transformed by this rotation.
|
||||
///
|
||||
/// The input point must be use the unit Src, and the returned point has the unit Dst.
|
||||
#[inline]
|
||||
pub fn transform_point(&self, point: &TypedPoint2D<T, Src>) -> TypedPoint2D<T, Dst> {
|
||||
let (sin, cos) = Float::sin_cos(self.angle);
|
||||
point2(
|
||||
point.x * cos - point.y * sin,
|
||||
point.y * cos + point.x * sin,
|
||||
)
|
||||
}
|
||||
|
||||
/// Returns the given 2d vector transformed by this rotation.
|
||||
///
|
||||
/// The input point must be use the unit Src, and the returned point has the unit Dst.
|
||||
#[inline]
|
||||
pub fn transform_vector(&self, vector: &TypedVector2D<T, Src>) -> TypedVector2D<T, Dst> {
|
||||
self.transform_point(&vector.to_point()).to_vector()
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, Src, Dst> TypedRotation2D<T, Src, Dst>
|
||||
where T: Copy + Clone +
|
||||
Add<T, Output=T> +
|
||||
Mul<T, Output=T> +
|
||||
Div<T, Output=T> +
|
||||
Sub<T, Output=T> +
|
||||
Trig +
|
||||
PartialOrd +
|
||||
One + Zero
|
||||
{
|
||||
/// Returns the matrix representation of this rotation.
|
||||
#[inline]
|
||||
pub fn to_transform(&self) -> TypedTransform2D<T, Src, Dst> {
|
||||
TypedTransform2D::create_rotation(self.get_angle())
|
||||
}
|
||||
}
|
||||
|
||||
define_matrix! {
|
||||
/// A transform that can represent rotations in 3d, represented as a quaternion.
|
||||
///
|
||||
/// Most methods expect the quaternion to be normalized.
|
||||
/// When in doubt, use `unit_quaternion` instead of `quaternion` to create
|
||||
/// a rotation as the former will ensure that its result is normalized.
|
||||
///
|
||||
/// Some people use the `x, y, z, w` (or `w, x, y, z`) notations. The equivalence is
|
||||
/// as follows: `x -> i`, `y -> j`, `z -> k`, `w -> r`.
|
||||
/// The memory layout of this type corresponds to the `x, y, z, w` notation
|
||||
pub struct TypedRotation3D<T, Src, Dst> {
|
||||
// Component multiplied by the imaginary number `i`.
|
||||
pub i: T,
|
||||
// Component multiplied by the imaginary number `j`.
|
||||
pub j: T,
|
||||
// Component multiplied by the imaginary number `k`.
|
||||
pub k: T,
|
||||
// The real part.
|
||||
pub r: T,
|
||||
}
|
||||
}
|
||||
|
||||
/// The default 3d rotation type with no units.
|
||||
pub type Rotation3D<T> = TypedRotation3D<T, UnknownUnit, UnknownUnit>;
|
||||
|
||||
impl<T, Src, Dst> TypedRotation3D<T, Src, Dst> {
|
||||
/// Creates a rotation around from a quaternion representation.
|
||||
///
|
||||
/// The parameters are a, b, c and r compose the quaternion `a*i + b*j + c*k + r`
|
||||
/// where `a`, `b` and `c` describe the vector part and the last parameter `r` is
|
||||
/// the real part.
|
||||
///
|
||||
/// The resulting quaternion is not necessarily normalized. See `unit_quaternion`.
|
||||
#[inline]
|
||||
pub fn quaternion(a: T, b: T, c: T, r: T) -> Self {
|
||||
TypedRotation3D { i: a, j: b, k: c, r, _unit: PhantomData }
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
impl<T, Src, Dst> TypedRotation3D<T, Src, Dst> where T: Copy {
|
||||
/// Returns the vector part (i, j, k) of this quaternion.
|
||||
#[inline]
|
||||
pub fn vector_part(&self) -> Vector3D<T> { vec3(self.i, self.j, self.k) }
|
||||
}
|
||||
|
||||
impl<T, Src, Dst> TypedRotation3D<T, Src, Dst>
|
||||
where T: Copy + Clone +
|
||||
Add<T, Output=T> +
|
||||
Sub<T, Output=T> +
|
||||
Mul<T, Output=T> +
|
||||
Div<T, Output=T> +
|
||||
Neg<Output=T> +
|
||||
ApproxEq<T> +
|
||||
PartialOrd +
|
||||
Float +
|
||||
One + Zero
|
||||
{
|
||||
/// Creates the identity rotation.
|
||||
#[inline]
|
||||
pub fn identity() -> Self {
|
||||
let zero = T::zero();
|
||||
let one = T::one();
|
||||
Self::quaternion(zero, zero, zero, one)
|
||||
}
|
||||
|
||||
/// Creates a rotation around from a quaternion representation and normalizes it.
|
||||
///
|
||||
/// The parameters are a, b, c and r compose the quaternion `a*i + b*j + c*k + r`
|
||||
/// before normalization, where `a`, `b` and `c` describe the vector part and the
|
||||
/// last parameter `r` is the real part.
|
||||
#[inline]
|
||||
pub fn unit_quaternion(i: T, j: T, k: T, r: T) -> Self {
|
||||
Self::quaternion(i, j, k, r).normalize()
|
||||
}
|
||||
|
||||
/// Creates a rotation around a given axis.
|
||||
pub fn around_axis(axis: TypedVector3D<T, Src>, angle: Radians<T>) -> Self {
|
||||
let axis = axis.normalize();
|
||||
let two = T::one() + T::one();
|
||||
let (sin, cos) = Float::sin_cos(angle.get() / two);
|
||||
Self::quaternion(axis.x * sin, axis.y * sin, axis.z * sin, cos)
|
||||
}
|
||||
|
||||
/// Creates a rotation around the x axis.
|
||||
pub fn around_x(angle: Radians<T>) -> Self {
|
||||
let zero = Zero::zero();
|
||||
let two = T::one() + T::one();
|
||||
let (sin, cos) = Float::sin_cos(angle.get() / two);
|
||||
Self::quaternion(sin, zero, zero, cos)
|
||||
}
|
||||
|
||||
/// Creates a rotation around the y axis.
|
||||
pub fn around_y(angle: Radians<T>) -> Self {
|
||||
let zero = Zero::zero();
|
||||
let two = T::one() + T::one();
|
||||
let (sin, cos) = Float::sin_cos(angle.get() / two);
|
||||
Self::quaternion(zero, sin, zero, cos)
|
||||
}
|
||||
|
||||
/// Creates a rotation around the z axis.
|
||||
pub fn around_z(angle: Radians<T>) -> Self {
|
||||
let zero = Zero::zero();
|
||||
let two = T::one() + T::one();
|
||||
let (sin, cos) = Float::sin_cos(angle.get() / two);
|
||||
Self::quaternion(zero, zero, sin, cos)
|
||||
}
|
||||
|
||||
/// Creates a rotation from euler angles.
|
||||
///
|
||||
/// The rotations are applied in roll then pitch then yaw order.
|
||||
///
|
||||
/// - Roll (also calld bank) is a rotation around the x axis.
|
||||
/// - Pitch (also calld bearing) is a rotation around the y axis.
|
||||
/// - Yaw (also calld heading) is a rotation around the z axis.
|
||||
pub fn euler(roll: Radians<T>, pitch: Radians<T>, yaw: Radians<T>) -> Self {
|
||||
let half = T::one() / (T::one() + T::one());
|
||||
|
||||
let (sy, cy) = Float::sin_cos(half * yaw.get());
|
||||
let (sp, cp) = Float::sin_cos(half * pitch.get());
|
||||
let (sr, cr) = Float::sin_cos(half * roll.get());
|
||||
|
||||
Self::quaternion(
|
||||
cy * sr * cp - sy * cr * sp,
|
||||
cy * cr * sp + sy * sr * cp,
|
||||
sy * cr * cp - cy * sr * sp,
|
||||
cy * cr * cp + sy * sr * sp,
|
||||
)
|
||||
}
|
||||
|
||||
/// Returns the inverse of this rotation.
|
||||
#[inline]
|
||||
pub fn inverse(&self) -> TypedRotation3D<T, Dst, Src> {
|
||||
TypedRotation3D::quaternion(-self.i, -self.j, -self.k, self.r)
|
||||
}
|
||||
|
||||
/// Computes the norm of this quaternion
|
||||
#[inline]
|
||||
pub fn norm(&self) -> T {
|
||||
self.square_norm().sqrt()
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn square_norm(&self) -> T {
|
||||
(self.i * self.i + self.j * self.j + self.k * self.k + self.r *self.r)
|
||||
}
|
||||
|
||||
/// Returns a unit quaternion from this one.
|
||||
#[inline]
|
||||
pub fn normalize(&self) -> Self {
|
||||
self.mul(T::one() / self.norm())
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn is_normalized(&self) -> bool {
|
||||
// TODO: we might need to relax the threshold here, because of floating point imprecision.
|
||||
self.square_norm().approx_eq(&T::one())
|
||||
}
|
||||
|
||||
/// Spherical linear interpolation between this rotation and another rotation.
|
||||
///
|
||||
/// `t` is expected to be between zero and one.
|
||||
pub fn slerp(&self, other: &Self, t: T) -> Self {
|
||||
debug_assert!(self.is_normalized());
|
||||
debug_assert!(other.is_normalized());
|
||||
|
||||
let r1 = *self;
|
||||
let mut r2 = *other;
|
||||
|
||||
let mut dot = r1.i * r2.i + r1.j * r2.j + r1.k * r2.k + r1.r * r2.r;
|
||||
|
||||
let one = T::one();
|
||||
|
||||
if dot.approx_eq(&T::one()) {
|
||||
// If the inputs are too close, linearly interpolate to avoid precision issues.
|
||||
return r1.lerp(&r2, t);
|
||||
}
|
||||
|
||||
// If the dot product is negative, the quaternions
|
||||
// have opposite handed-ness and slerp won't take
|
||||
// the shorter path. Fix by reversing one quaternion.
|
||||
if dot < T::zero() {
|
||||
r2 = r2.mul(-T::one());
|
||||
dot = -dot;
|
||||
}
|
||||
|
||||
// For robustness, stay within the domain of acos.
|
||||
dot = Float::min(dot, one);
|
||||
|
||||
// Angle between r1 and the result.
|
||||
let theta = Float::acos(dot) * t;
|
||||
|
||||
// r1 and r3 form an orthonormal basis.
|
||||
let r3 = r2.sub(r1.mul(dot)).normalize();
|
||||
let (sin, cos) = Float::sin_cos(theta);
|
||||
r1.mul(cos).add(r3.mul(sin))
|
||||
}
|
||||
|
||||
/// Basic Linear interpolation between this rotation and another rotation.
|
||||
///
|
||||
/// `t` is expected to be between zero and one.
|
||||
#[inline]
|
||||
pub fn lerp(&self, other: &Self, t: T) -> Self {
|
||||
let one_t = T::one() - t;
|
||||
return self.mul(one_t).add(other.mul(t)).normalize();
|
||||
}
|
||||
|
||||
/// Returns the given 3d point transformed by this rotation.
|
||||
///
|
||||
/// The input point must be use the unit Src, and the returned point has the unit Dst.
|
||||
pub fn rotate_point3d(&self, point: &TypedPoint3D<T, Src>) -> TypedPoint3D<T, Dst> {
|
||||
debug_assert!(self.is_normalized());
|
||||
|
||||
let two = T::one() + T::one();
|
||||
let cross = self.vector_part().cross(point.to_vector().to_untyped()) * two;
|
||||
|
||||
point3(
|
||||
point.x + self.r * cross.x + self.j * cross.z - self.k * cross.y,
|
||||
point.y + self.r * cross.y + self.k * cross.x - self.i * cross.z,
|
||||
point.z + self.r * cross.z + self.i * cross.y - self.j * cross.x,
|
||||
)
|
||||
}
|
||||
|
||||
/// Returns the given 2d point transformed by this rotation then projected on the xy plane.
|
||||
///
|
||||
/// The input point must be use the unit Src, and the returned point has the unit Dst.
|
||||
#[inline]
|
||||
pub fn rotate_point2d(&self, point: &TypedPoint2D<T, Src>) -> TypedPoint2D<T, Dst> {
|
||||
self.rotate_point3d(&point.to_3d()).xy()
|
||||
}
|
||||
|
||||
/// Returns the given 3d vector transformed by this rotation then projected on the xy plane.
|
||||
///
|
||||
/// The input vector must be use the unit Src, and the returned point has the unit Dst.
|
||||
#[inline]
|
||||
pub fn rotate_vector3d(&self, vector: &TypedVector3D<T, Src>) -> TypedVector3D<T, Dst> {
|
||||
self.rotate_point3d(&vector.to_point()).to_vector()
|
||||
}
|
||||
|
||||
/// Returns the given 2d vector transformed by this rotation then projected on the xy plane.
|
||||
///
|
||||
/// The input vector must be use the unit Src, and the returned point has the unit Dst.
|
||||
#[inline]
|
||||
pub fn rotate_vector2d(&self, vector: &TypedVector2D<T, Src>) -> TypedVector2D<T, Dst> {
|
||||
self.rotate_vector3d(&vector.to_3d()).xy()
|
||||
}
|
||||
|
||||
/// Returns the matrix representation of this rotation.
|
||||
#[inline]
|
||||
pub fn to_transform(&self) -> TypedTransform3D<T, Src, Dst> {
|
||||
debug_assert!(self.is_normalized());
|
||||
|
||||
let i2 = self.i + self.i;
|
||||
let j2 = self.j + self.j;
|
||||
let k2 = self.k + self.k;
|
||||
let ii = self.i * i2;
|
||||
let ij = self.i * j2;
|
||||
let ik = self.i * k2;
|
||||
let jj = self.j * j2;
|
||||
let jk = self.j * k2;
|
||||
let kk = self.k * k2;
|
||||
let ri = self.r * i2;
|
||||
let rj = self.r * j2;
|
||||
let rk = self.r * k2;
|
||||
|
||||
let one = T::one();
|
||||
let zero = T::zero();
|
||||
|
||||
let m11 = one - (jj + kk);
|
||||
let m12 = ij + rk;
|
||||
let m13 = ik - rj;
|
||||
|
||||
let m21 = ij - rk;
|
||||
let m22 = one - (ii + kk);
|
||||
let m23 = jk + ri;
|
||||
|
||||
let m31 = ik + rj;
|
||||
let m32 = jk - ri;
|
||||
let m33 = one - (ii + jj);
|
||||
|
||||
TypedTransform3D::row_major(
|
||||
m11, m12, m13, zero,
|
||||
m21, m22, m23, zero,
|
||||
m31, m32, m33, zero,
|
||||
zero, zero, zero, one,
|
||||
)
|
||||
}
|
||||
|
||||
/// Returns a rotation representing the other rotation followed by this rotation.
|
||||
pub fn pre_rotate<NewSrc>(&self, other: &TypedRotation3D<T, NewSrc, Src>) -> TypedRotation3D<T, NewSrc, Dst> {
|
||||
debug_assert!(self.is_normalized());
|
||||
TypedRotation3D::quaternion(
|
||||
self.i * other.r + self.r * other.i + self.j * other.k - self.k * other.j,
|
||||
self.j * other.r + self.r * other.j + self.k * other.i - self.i * other.k,
|
||||
self.k * other.r + self.r * other.k + self.i * other.j - self.j * other.i,
|
||||
self.r * other.r - self.i * other.i - self.j * other.j - self.k * other.k,
|
||||
)
|
||||
}
|
||||
|
||||
/// Returns a rotation representing this rotation followed by the other rotation.
|
||||
#[inline]
|
||||
pub fn post_rotate<NewDst>(&self, other: &TypedRotation3D<T, Dst, NewDst>) -> TypedRotation3D<T, Src, NewDst> {
|
||||
other.pre_rotate(self)
|
||||
}
|
||||
|
||||
// add, sub and mul are used internally for intermediate computation but aren't public
|
||||
// because they don't carry real semantic meanings (I think?).
|
||||
|
||||
#[inline]
|
||||
fn add(&self, other: Self) -> Self {
|
||||
Self::quaternion(
|
||||
self.i + other.i,
|
||||
self.j + other.j,
|
||||
self.k + other.k,
|
||||
self.r + other.r,
|
||||
)
|
||||
}
|
||||
|
||||
#[inline]
|
||||
fn sub(&self, other: Self) -> Self {
|
||||
Self::quaternion(
|
||||
self.i - other.i,
|
||||
self.j - other.j,
|
||||
self.k - other.k,
|
||||
self.r - other.r,
|
||||
)
|
||||
}
|
||||
|
||||
#[inline]
|
||||
fn mul(&self, factor: T) -> Self {
|
||||
Self::quaternion(
|
||||
self.i * factor,
|
||||
self.j * factor,
|
||||
self.k * factor,
|
||||
self.r * factor,
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: fmt::Debug, Src, Dst> fmt::Debug for TypedRotation3D<T, Src, Dst> {
|
||||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||
write!(f, "Quat({:?}*i + {:?}*j + {:?}*k + {:?})", self.i, self.j, self.k, self.r)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: fmt::Display, Src, Dst> fmt::Display for TypedRotation3D<T, Src, Dst> {
|
||||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||
write!(f, "Quat({}*i + {}*j + {}*k + {})", self.i, self.j, self.k, self.r)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, Src, Dst> ApproxEq<T> for TypedRotation3D<T, Src, Dst>
|
||||
where
|
||||
T: Copy + Neg<Output=T> + ApproxEq<T>
|
||||
{
|
||||
fn approx_epsilon() -> T {
|
||||
T::approx_epsilon()
|
||||
}
|
||||
|
||||
fn approx_eq(&self, other: &Self) -> bool {
|
||||
self.approx_eq_eps(other, &Self::approx_epsilon())
|
||||
}
|
||||
|
||||
fn approx_eq_eps(&self, other: &Self, eps: &T) -> bool {
|
||||
(
|
||||
self.i.approx_eq_eps(&other.i, eps)
|
||||
&& self.j.approx_eq_eps(&other.j, eps)
|
||||
&& self.k.approx_eq_eps(&other.k, eps)
|
||||
&& self.r.approx_eq_eps(&other.r, eps)
|
||||
) || (
|
||||
self.i.approx_eq_eps(&-other.i, eps)
|
||||
&& self.j.approx_eq_eps(&-other.j, eps)
|
||||
&& self.k.approx_eq_eps(&-other.k, eps)
|
||||
&& self.r.approx_eq_eps(&-other.r, eps)
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn simple_rotation_2d() {
|
||||
use std::f32::consts::{PI, FRAC_PI_2};
|
||||
let ri = Rotation2D::identity();
|
||||
let r90 = Rotation2D::radians(FRAC_PI_2);
|
||||
let rm90 = Rotation2D::radians(-FRAC_PI_2);
|
||||
let r180 = Rotation2D::radians(PI);
|
||||
|
||||
assert!(ri.transform_point(&point2(1.0, 2.0)).approx_eq(&point2(1.0, 2.0)));
|
||||
assert!(r90.transform_point(&point2(1.0, 2.0)).approx_eq(&point2(-2.0, 1.0)));
|
||||
assert!(rm90.transform_point(&point2(1.0, 2.0)).approx_eq(&point2(2.0, -1.0)));
|
||||
assert!(r180.transform_point(&point2(1.0, 2.0)).approx_eq(&point2(-1.0, -2.0)));
|
||||
|
||||
assert!(
|
||||
r90.inverse().inverse().transform_point(&point2(1.0, 2.0)).approx_eq(
|
||||
&r90.transform_point(&point2(1.0, 2.0))
|
||||
)
|
||||
);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn simple_rotation_3d_in_2d() {
|
||||
use std::f32::consts::{PI, FRAC_PI_2};
|
||||
let ri = Rotation3D::identity();
|
||||
let r90 = Rotation3D::around_z(Radians::new(FRAC_PI_2));
|
||||
let rm90 = Rotation3D::around_z(Radians::new(-FRAC_PI_2));
|
||||
let r180 = Rotation3D::around_z(Radians::new(PI));
|
||||
|
||||
assert!(ri.rotate_point2d(&point2(1.0, 2.0)).approx_eq(&point2(1.0, 2.0)));
|
||||
assert!(r90.rotate_point2d(&point2(1.0, 2.0)).approx_eq(&point2(-2.0, 1.0)));
|
||||
assert!(rm90.rotate_point2d(&point2(1.0, 2.0)).approx_eq(&point2(2.0, -1.0)));
|
||||
assert!(r180.rotate_point2d(&point2(1.0, 2.0)).approx_eq(&point2(-1.0, -2.0)));
|
||||
|
||||
assert!(
|
||||
r90.inverse().inverse().rotate_point2d(&point2(1.0, 2.0)).approx_eq(
|
||||
&r90.rotate_point2d(&point2(1.0, 2.0))
|
||||
)
|
||||
);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn pre_post() {
|
||||
use std::f32::consts::{FRAC_PI_2};
|
||||
let r1 = Rotation3D::around_x(Radians::new(FRAC_PI_2));
|
||||
let r2 = Rotation3D::around_y(Radians::new(FRAC_PI_2));
|
||||
let r3 = Rotation3D::around_z(Radians::new(FRAC_PI_2));
|
||||
|
||||
let t1 = r1.to_transform();
|
||||
let t2 = r2.to_transform();
|
||||
let t3 = r3.to_transform();
|
||||
|
||||
let p = point3(1.0, 2.0, 3.0);
|
||||
|
||||
// Check that the order of transformations is correct (corresponds to what
|
||||
// we do in Transfor3D).
|
||||
let p1 = r1.post_rotate(&r2).post_rotate(&r3).rotate_point3d(&p);
|
||||
let p2 = t1.post_mul(&t2).post_mul(&t3).transform_point3d(&p);
|
||||
|
||||
assert!(p1.approx_eq(&p2));
|
||||
|
||||
// Check that changing the order indeed matters.
|
||||
let p3 = t3.post_mul(&t1).post_mul(&t2).transform_point3d(&p);
|
||||
assert!(!p1.approx_eq(&p3));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn to_transform3d() {
|
||||
use std::f32::consts::{PI, FRAC_PI_2};
|
||||
let rotations = [
|
||||
Rotation3D::identity(),
|
||||
Rotation3D::around_x(Radians::new(FRAC_PI_2)),
|
||||
Rotation3D::around_x(Radians::new(-FRAC_PI_2)),
|
||||
Rotation3D::around_x(Radians::new(PI)),
|
||||
Rotation3D::around_y(Radians::new(FRAC_PI_2)),
|
||||
Rotation3D::around_y(Radians::new(-FRAC_PI_2)),
|
||||
Rotation3D::around_y(Radians::new(PI)),
|
||||
Rotation3D::around_z(Radians::new(FRAC_PI_2)),
|
||||
Rotation3D::around_z(Radians::new(-FRAC_PI_2)),
|
||||
Rotation3D::around_z(Radians::new(PI)),
|
||||
];
|
||||
|
||||
let points = [
|
||||
point3(0.0, 0.0, 0.0),
|
||||
point3(1.0, 2.0, 3.0),
|
||||
point3(-5.0, 3.0, -1.0),
|
||||
point3(-0.5, -1.0, 1.5),
|
||||
];
|
||||
|
||||
for rotation in &rotations {
|
||||
for point in &points {
|
||||
let p1 = rotation.rotate_point3d(point);
|
||||
let p2 = rotation.to_transform().transform_point3d(point);
|
||||
assert!(p1.approx_eq(&p2));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn slerp() {
|
||||
let q1 = Rotation3D::quaternion(1.0, 0.0, 0.0, 0.0);
|
||||
let q2 = Rotation3D::quaternion(0.0, 1.0, 0.0, 0.0);
|
||||
let q3 = Rotation3D::quaternion(0.0, 0.0, -1.0, 0.0);
|
||||
|
||||
// The values below can be obtained with a python program:
|
||||
// import numpy
|
||||
// import quaternion
|
||||
// q1 = numpy.quaternion(1, 0, 0, 0)
|
||||
// q2 = numpy.quaternion(0, 1, 0, 0)
|
||||
// quaternion.slerp_evaluate(q1, q2, 0.2)
|
||||
|
||||
assert!(q1.slerp(&q2, 0.0).approx_eq(&q1));
|
||||
assert!(q1.slerp(&q2, 0.2).approx_eq(&Rotation3D::quaternion(0.951056516295154, 0.309016994374947, 0.0, 0.0)));
|
||||
assert!(q1.slerp(&q2, 0.4).approx_eq(&Rotation3D::quaternion(0.809016994374947, 0.587785252292473, 0.0, 0.0)));
|
||||
assert!(q1.slerp(&q2, 0.6).approx_eq(&Rotation3D::quaternion(0.587785252292473, 0.809016994374947, 0.0, 0.0)));
|
||||
assert!(q1.slerp(&q2, 0.8).approx_eq(&Rotation3D::quaternion(0.309016994374947, 0.951056516295154, 0.0, 0.0)));
|
||||
assert!(q1.slerp(&q2, 1.0).approx_eq(&q2));
|
||||
|
||||
assert!(q1.slerp(&q3, 0.0).approx_eq(&q1));
|
||||
assert!(q1.slerp(&q3, 0.2).approx_eq(&Rotation3D::quaternion(0.951056516295154, 0.0, -0.309016994374947, 0.0)));
|
||||
assert!(q1.slerp(&q3, 0.4).approx_eq(&Rotation3D::quaternion(0.809016994374947, 0.0, -0.587785252292473, 0.0)));
|
||||
assert!(q1.slerp(&q3, 0.6).approx_eq(&Rotation3D::quaternion(0.587785252292473, 0.0, -0.809016994374947, 0.0)));
|
||||
assert!(q1.slerp(&q3, 0.8).approx_eq(&Rotation3D::quaternion(0.309016994374947, 0.0, -0.951056516295154, 0.0)));
|
||||
assert!(q1.slerp(&q3, 1.0).approx_eq(&q3));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn around_axis() {
|
||||
use std::f32::consts::{PI, FRAC_PI_2};
|
||||
|
||||
// Two sort of trivial cases:
|
||||
let r1 = Rotation3D::around_axis(vec3(1.0, 1.0, 0.0), Radians::new(PI));
|
||||
let r2 = Rotation3D::around_axis(vec3(1.0, 1.0, 0.0), Radians::new(FRAC_PI_2));
|
||||
assert!(r1.rotate_point3d(&point3(1.0, 2.0, 0.0)).approx_eq(&point3(2.0, 1.0, 0.0)));
|
||||
assert!(r2.rotate_point3d(&point3(1.0, 0.0, 0.0)).approx_eq(&point3(0.5, 0.5, -0.5.sqrt())));
|
||||
|
||||
// A more arbitray test (made up with numpy):
|
||||
let r3 = Rotation3D::around_axis(vec3(0.5, 1.0, 2.0), Radians::new(2.291288));
|
||||
assert!(r3.rotate_point3d(&point3(1.0, 0.0, 0.0)).approx_eq(&point3(-0.58071821, 0.81401868, -0.01182979)));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn from_euler() {
|
||||
use std::f32::consts::FRAC_PI_2;
|
||||
|
||||
// First test simple separate yaw pitch and roll rotations, because it is easy to come
|
||||
// up with the corresponding quaternion.
|
||||
// Since several quaternions can represent the same transformation we compare the result
|
||||
// of transforming a point rather than the values of each qauetrnions.
|
||||
let p = point3(1.0, 2.0, 3.0);
|
||||
|
||||
let angle = Radians::new(FRAC_PI_2);
|
||||
let zero = Radians::new(0.0);
|
||||
|
||||
// roll
|
||||
let roll_re = Rotation3D::euler(angle, zero, zero);
|
||||
let roll_rq = Rotation3D::around_x(angle);
|
||||
let roll_pe = roll_re.rotate_point3d(&p);
|
||||
let roll_pq = roll_rq.rotate_point3d(&p);
|
||||
|
||||
// pitch
|
||||
let pitch_re = Rotation3D::euler(zero, angle, zero);
|
||||
let pitch_rq = Rotation3D::around_y(angle);
|
||||
let pitch_pe = pitch_re.rotate_point3d(&p);
|
||||
let pitch_pq = pitch_rq.rotate_point3d(&p);
|
||||
|
||||
// yaw
|
||||
let yaw_re = Rotation3D::euler(zero, zero, angle);
|
||||
let yaw_rq = Rotation3D::around_z(angle);
|
||||
let yaw_pe = yaw_re.rotate_point3d(&p);
|
||||
let yaw_pq = yaw_rq.rotate_point3d(&p);
|
||||
|
||||
assert!(roll_pe.approx_eq(&roll_pq));
|
||||
assert!(pitch_pe.approx_eq(&pitch_pq));
|
||||
assert!(yaw_pe.approx_eq(&yaw_pq));
|
||||
|
||||
// Now check that the yaw pitch and roll transformations when compined are applied in
|
||||
// the proper order: roll -> pitch -> yaw.
|
||||
let ypr_e = Rotation3D::euler(angle, angle, angle);
|
||||
let ypr_q = roll_rq.post_rotate(&pitch_rq).post_rotate(&yaw_rq);
|
||||
let ypr_pe = ypr_e.rotate_point3d(&p);
|
||||
let ypr_pq = ypr_q.rotate_point3d(&p);
|
||||
|
||||
assert!(ypr_pe.approx_eq(&ypr_pq));
|
||||
}
|
||||
|
283
third_party/rust/euclid-0.15.5/src/side_offsets.rs
vendored
Normal file
283
third_party/rust/euclid-0.15.5/src/side_offsets.rs
vendored
Normal file
@ -0,0 +1,283 @@
|
||||
// Copyright 2013 The Servo Project Developers. See the COPYRIGHT
|
||||
// file at the top-level directory of this distribution.
|
||||
//
|
||||
// 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 group of side offsets, which correspond to top/left/bottom/right for borders, padding,
|
||||
//! and margins in CSS.
|
||||
|
||||
use super::UnknownUnit;
|
||||
use length::Length;
|
||||
use num::Zero;
|
||||
use std::fmt;
|
||||
use std::ops::Add;
|
||||
use std::marker::PhantomData;
|
||||
|
||||
#[cfg(feature = "unstable")]
|
||||
use heapsize::HeapSizeOf;
|
||||
|
||||
/// A group of side offsets, which correspond to top/left/bottom/right for borders, padding,
|
||||
/// and margins in CSS, optionally tagged with a unit.
|
||||
define_matrix! {
|
||||
pub struct TypedSideOffsets2D<T, U> {
|
||||
pub top: T,
|
||||
pub right: T,
|
||||
pub bottom: T,
|
||||
pub left: T,
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: fmt::Debug, U> fmt::Debug for TypedSideOffsets2D<T, U> {
|
||||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||
write!(f, "({:?},{:?},{:?},{:?})",
|
||||
self.top, self.right, self.bottom, self.left)
|
||||
}
|
||||
}
|
||||
|
||||
/// The default side offset type with no unit.
|
||||
pub type SideOffsets2D<T> = TypedSideOffsets2D<T, UnknownUnit>;
|
||||
|
||||
impl<T: Copy, U> TypedSideOffsets2D<T, U> {
|
||||
/// Constructor taking a scalar for each side.
|
||||
pub fn new(top: T, right: T, bottom: T, left: T) -> Self {
|
||||
TypedSideOffsets2D {
|
||||
top: top,
|
||||
right: right,
|
||||
bottom: bottom,
|
||||
left: left,
|
||||
_unit: PhantomData,
|
||||
}
|
||||
}
|
||||
|
||||
/// Constructor taking a typed Length for each side.
|
||||
pub fn from_lengths(top: Length<T, U>,
|
||||
right: Length<T, U>,
|
||||
bottom: Length<T, U>,
|
||||
left: Length<T, U>) -> Self {
|
||||
TypedSideOffsets2D::new(top.0, right.0, bottom.0, left.0)
|
||||
}
|
||||
|
||||
/// Access self.top as a typed Length instead of a scalar value.
|
||||
pub fn top_typed(&self) -> Length<T, U> { Length::new(self.top) }
|
||||
|
||||
/// Access self.right as a typed Length instead of a scalar value.
|
||||
pub fn right_typed(&self) -> Length<T, U> { Length::new(self.right) }
|
||||
|
||||
/// Access self.bottom as a typed Length instead of a scalar value.
|
||||
pub fn bottom_typed(&self) -> Length<T, U> { Length::new(self.bottom) }
|
||||
|
||||
/// Access self.left as a typed Length instead of a scalar value.
|
||||
pub fn left_typed(&self) -> Length<T, U> { Length::new(self.left) }
|
||||
|
||||
/// Constructor setting the same value to all sides, taking a scalar value directly.
|
||||
pub fn new_all_same(all: T) -> Self {
|
||||
TypedSideOffsets2D::new(all, all, all, all)
|
||||
}
|
||||
|
||||
/// Constructor setting the same value to all sides, taking a typed Length.
|
||||
pub fn from_length_all_same(all: Length<T, U>) -> Self {
|
||||
TypedSideOffsets2D::new_all_same(all.0)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, U> TypedSideOffsets2D<T, U> where T: Add<T, Output=T> + Copy {
|
||||
pub fn horizontal(&self) -> T {
|
||||
self.left + self.right
|
||||
}
|
||||
|
||||
pub fn vertical(&self) -> T {
|
||||
self.top + self.bottom
|
||||
}
|
||||
|
||||
pub fn horizontal_typed(&self) -> Length<T, U> {
|
||||
Length::new(self.horizontal())
|
||||
}
|
||||
|
||||
pub fn vertical_typed(&self) -> Length<T, U> {
|
||||
Length::new(self.vertical())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, U> Add for TypedSideOffsets2D<T, U> where T : Copy + Add<T, Output=T> {
|
||||
type Output = Self;
|
||||
fn add(self, other: Self) -> Self {
|
||||
TypedSideOffsets2D::new(
|
||||
self.top + other.top,
|
||||
self.right + other.right,
|
||||
self.bottom + other.bottom,
|
||||
self.left + other.left,
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Zero, U> TypedSideOffsets2D<T, U> {
|
||||
/// Constructor, setting all sides to zero.
|
||||
pub fn zero() -> Self {
|
||||
TypedSideOffsets2D::new(
|
||||
Zero::zero(),
|
||||
Zero::zero(),
|
||||
Zero::zero(),
|
||||
Zero::zero(),
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
/// A SIMD enabled version of TypedSideOffsets2D specialized for i32.
|
||||
#[cfg(feature = "unstable")]
|
||||
#[derive(Clone, Copy, PartialEq)]
|
||||
#[repr(simd)]
|
||||
pub struct SideOffsets2DSimdI32 {
|
||||
pub top: i32,
|
||||
pub bottom: i32,
|
||||
pub right: i32,
|
||||
pub left: i32,
|
||||
}
|
||||
|
||||
#[cfg(feature = "unstable")]
|
||||
impl HeapSizeOf for SideOffsets2DSimdI32 {
|
||||
fn heap_size_of_children(&self) -> usize { 0 }
|
||||
}
|
||||
|
||||
#[cfg(feature = "unstable")]
|
||||
impl SideOffsets2DSimdI32 {
|
||||
#[inline]
|
||||
pub fn new(top: i32, right: i32, bottom: i32, left: i32) -> SideOffsets2DSimdI32 {
|
||||
SideOffsets2DSimdI32 {
|
||||
top: top,
|
||||
bottom: bottom,
|
||||
right: right,
|
||||
left: left,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(feature = "unstable")]
|
||||
impl SideOffsets2DSimdI32 {
|
||||
#[inline]
|
||||
pub fn new_all_same(all: i32) -> SideOffsets2DSimdI32 {
|
||||
SideOffsets2DSimdI32::new(all.clone(), all.clone(), all.clone(), all.clone())
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(feature = "unstable")]
|
||||
impl SideOffsets2DSimdI32 {
|
||||
#[inline]
|
||||
pub fn horizontal(&self) -> i32 {
|
||||
self.left + self.right
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn vertical(&self) -> i32 {
|
||||
self.top + self.bottom
|
||||
}
|
||||
}
|
||||
|
||||
/*impl Add for SideOffsets2DSimdI32 {
|
||||
type Output = SideOffsets2DSimdI32;
|
||||
#[inline]
|
||||
fn add(self, other: SideOffsets2DSimdI32) -> SideOffsets2DSimdI32 {
|
||||
self + other // Use SIMD addition
|
||||
}
|
||||
}*/
|
||||
|
||||
#[cfg(feature = "unstable")]
|
||||
impl SideOffsets2DSimdI32 {
|
||||
#[inline]
|
||||
pub fn zero() -> SideOffsets2DSimdI32 {
|
||||
SideOffsets2DSimdI32 {
|
||||
top: 0,
|
||||
bottom: 0,
|
||||
right: 0,
|
||||
left: 0,
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(not(target_arch = "x86_64"))]
|
||||
#[inline]
|
||||
pub fn is_zero(&self) -> bool {
|
||||
self.top == 0 && self.right == 0 && self.bottom == 0 && self.left == 0
|
||||
}
|
||||
|
||||
#[cfg(target_arch = "x86_64")]
|
||||
#[inline]
|
||||
pub fn is_zero(&self) -> bool {
|
||||
let is_zero: bool;
|
||||
unsafe {
|
||||
asm! {
|
||||
"ptest $1, $1
|
||||
setz $0"
|
||||
: "=r"(is_zero)
|
||||
: "x"(*self)
|
||||
:
|
||||
: "intel"
|
||||
};
|
||||
}
|
||||
is_zero
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(feature = "unstable")]
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::SideOffsets2DSimdI32;
|
||||
|
||||
#[test]
|
||||
fn test_is_zero() {
|
||||
assert!(SideOffsets2DSimdI32::new_all_same(0).is_zero());
|
||||
assert!(!SideOffsets2DSimdI32::new_all_same(1).is_zero());
|
||||
assert!(!SideOffsets2DSimdI32::new(1, 0, 0, 0).is_zero());
|
||||
assert!(!SideOffsets2DSimdI32::new(0, 1, 0, 0).is_zero());
|
||||
assert!(!SideOffsets2DSimdI32::new(0, 0, 1, 0).is_zero());
|
||||
assert!(!SideOffsets2DSimdI32::new(0, 0, 0, 1).is_zero());
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(feature = "unstable")]
|
||||
#[cfg(bench)]
|
||||
mod bench {
|
||||
use test::BenchHarness;
|
||||
use std::num::Zero;
|
||||
use rand::{XorShiftRng, Rng};
|
||||
use super::SideOffsets2DSimdI32;
|
||||
|
||||
#[cfg(target_arch = "x86")]
|
||||
#[cfg(target_arch = "x86_64")]
|
||||
#[bench]
|
||||
fn bench_naive_is_zero(bh: &mut BenchHarness) {
|
||||
fn is_zero(x: &SideOffsets2DSimdI32) -> bool {
|
||||
x.top.is_zero() && x.right.is_zero() && x.bottom.is_zero() && x.left.is_zero()
|
||||
}
|
||||
let mut rng = XorShiftRng::new().unwrap();
|
||||
bh.iter(|| is_zero(&rng.gen::<SideOffsets2DSimdI32>()))
|
||||
}
|
||||
|
||||
#[bench]
|
||||
fn bench_is_zero(bh: &mut BenchHarness) {
|
||||
let mut rng = XorShiftRng::new().unwrap();
|
||||
bh.iter(|| rng.gen::<SideOffsets2DSimdI32>().is_zero())
|
||||
}
|
||||
|
||||
#[bench]
|
||||
fn bench_naive_add(bh: &mut BenchHarness) {
|
||||
fn add(x: &SideOffsets2DSimdI32, y: &SideOffsets2DSimdI32) -> SideOffsets2DSimdI32 {
|
||||
SideOffsets2DSimdI32 {
|
||||
top: x.top + y.top,
|
||||
right: x.right + y.right,
|
||||
bottom: x.bottom + y.bottom,
|
||||
left: x.left + y.left,
|
||||
}
|
||||
}
|
||||
let mut rng = XorShiftRng::new().unwrap();
|
||||
bh.iter(|| add(&rng.gen::<SideOffsets2DSimdI32>(), &rng.gen::<SideOffsets2DSimdI32>()))
|
||||
}
|
||||
|
||||
#[bench]
|
||||
fn bench_add(bh: &mut BenchHarness) {
|
||||
let mut rng = XorShiftRng::new().unwrap();
|
||||
bh.iter(|| rng.gen::<SideOffsets2DSimdI32>() + rng.gen::<SideOffsets2DSimdI32>())
|
||||
}
|
||||
}
|
311
third_party/rust/euclid-0.15.5/src/size.rs
vendored
Normal file
311
third_party/rust/euclid-0.15.5/src/size.rs
vendored
Normal file
@ -0,0 +1,311 @@
|
||||
// Copyright 2013 The Servo Project Developers. See the COPYRIGHT
|
||||
// file at the top-level directory of this distribution.
|
||||
//
|
||||
// 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.
|
||||
|
||||
use super::UnknownUnit;
|
||||
use length::Length;
|
||||
use scale_factor::ScaleFactor;
|
||||
use vector::{TypedVector2D, vec2};
|
||||
use num::*;
|
||||
|
||||
use num_traits::{NumCast, Signed};
|
||||
use std::fmt;
|
||||
use std::ops::{Add, Div, Mul, Sub};
|
||||
use std::marker::PhantomData;
|
||||
|
||||
/// A 2d size tagged with a unit.
|
||||
define_matrix! {
|
||||
pub struct TypedSize2D<T, U> {
|
||||
pub width: T,
|
||||
pub height: T,
|
||||
}
|
||||
}
|
||||
|
||||
/// Default 2d size type with no unit.
|
||||
///
|
||||
/// `Size2D` provides the same methods as `TypedSize2D`.
|
||||
pub type Size2D<T> = TypedSize2D<T, UnknownUnit>;
|
||||
|
||||
impl<T: fmt::Debug, U> fmt::Debug for TypedSize2D<T, U> {
|
||||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||
write!(f, "{:?}×{:?}", self.width, self.height)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: fmt::Display, U> fmt::Display for TypedSize2D<T, U> {
|
||||
fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
|
||||
write!(formatter, "({}x{})", self.width, self.height)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, U> TypedSize2D<T, U> {
|
||||
/// Constructor taking scalar values.
|
||||
pub fn new(width: T, height: T) -> Self {
|
||||
TypedSize2D {
|
||||
width: width,
|
||||
height: height,
|
||||
_unit: PhantomData,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Clone, U> TypedSize2D<T, U> {
|
||||
/// Constructor taking scalar strongly typed lengths.
|
||||
pub fn from_lengths(width: Length<T, U>, height: Length<T, U>) -> Self {
|
||||
TypedSize2D::new(width.get(), height.get())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Round, U> TypedSize2D<T, U> {
|
||||
/// Rounds each component to the nearest integer value.
|
||||
///
|
||||
/// This behavior is preserved for negative values (unlike the basic cast).
|
||||
pub fn round(&self) -> Self {
|
||||
TypedSize2D::new(self.width.round(), self.height.round())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Ceil, U> TypedSize2D<T, U> {
|
||||
/// Rounds each component to the smallest integer equal or greater than the original value.
|
||||
///
|
||||
/// This behavior is preserved for negative values (unlike the basic cast).
|
||||
pub fn ceil(&self) -> Self {
|
||||
TypedSize2D::new(self.width.ceil(), self.height.ceil())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Floor, U> TypedSize2D<T, U> {
|
||||
/// Rounds each component to the biggest integer equal or lower than the original value.
|
||||
///
|
||||
/// This behavior is preserved for negative values (unlike the basic cast).
|
||||
pub fn floor(&self) -> Self {
|
||||
TypedSize2D::new(self.width.floor(), self.height.floor())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Add<T, Output=T>, U> Add for TypedSize2D<T, U> {
|
||||
type Output = Self;
|
||||
fn add(self, other: Self) -> Self {
|
||||
TypedSize2D::new(self.width + other.width, self.height + other.height)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Sub<T, Output=T>, U> Sub for TypedSize2D<T, U> {
|
||||
type Output = Self;
|
||||
fn sub(self, other: Self) -> Self {
|
||||
TypedSize2D::new(self.width - other.width, self.height - other.height)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Clone + Mul<T>, U> TypedSize2D<T, U> {
|
||||
pub fn area(&self) -> T::Output { self.width * self.height }
|
||||
}
|
||||
|
||||
impl<T, U> TypedSize2D<T, U>
|
||||
where T: Copy + One + Add<Output=T> + Sub<Output=T> + Mul<Output=T> {
|
||||
/// Linearly interpolate between this size and another size.
|
||||
///
|
||||
/// `t` is expected to be between zero and one.
|
||||
#[inline]
|
||||
pub fn lerp(&self, other: Self, t: T) -> Self {
|
||||
let one_t = T::one() - t;
|
||||
size2(
|
||||
one_t * self.width + t * other.width,
|
||||
one_t * self.height + t * other.height,
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Zero, U> TypedSize2D<T, U> {
|
||||
pub fn zero() -> Self {
|
||||
TypedSize2D::new(
|
||||
Zero::zero(),
|
||||
Zero::zero(),
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Zero, U> Zero for TypedSize2D<T, U> {
|
||||
fn zero() -> Self {
|
||||
TypedSize2D::new(
|
||||
Zero::zero(),
|
||||
Zero::zero(),
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Mul<T, Output=T>, U> Mul<T> for TypedSize2D<T, U> {
|
||||
type Output = Self;
|
||||
#[inline]
|
||||
fn mul(self, scale: T) -> Self {
|
||||
TypedSize2D::new(self.width * scale, self.height * scale)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Div<T, Output=T>, U> Div<T> for TypedSize2D<T, U> {
|
||||
type Output = Self;
|
||||
#[inline]
|
||||
fn div(self, scale: T) -> Self {
|
||||
TypedSize2D::new(self.width / scale, self.height / scale)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Mul<T, Output=T>, U1, U2> Mul<ScaleFactor<T, U1, U2>> for TypedSize2D<T, U1> {
|
||||
type Output = TypedSize2D<T, U2>;
|
||||
#[inline]
|
||||
fn mul(self, scale: ScaleFactor<T, U1, U2>) -> TypedSize2D<T, U2> {
|
||||
TypedSize2D::new(self.width * scale.get(), self.height * scale.get())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Div<T, Output=T>, U1, U2> Div<ScaleFactor<T, U1, U2>> for TypedSize2D<T, U2> {
|
||||
type Output = TypedSize2D<T, U1>;
|
||||
#[inline]
|
||||
fn div(self, scale: ScaleFactor<T, U1, U2>) -> TypedSize2D<T, U1> {
|
||||
TypedSize2D::new(self.width / scale.get(), self.height / scale.get())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy, U> TypedSize2D<T, U> {
|
||||
/// Returns self.width as a Length carrying the unit.
|
||||
#[inline]
|
||||
pub fn width_typed(&self) -> Length<T, U> { Length::new(self.width) }
|
||||
|
||||
/// Returns self.height as a Length carrying the unit.
|
||||
#[inline]
|
||||
pub fn height_typed(&self) -> Length<T, U> { Length::new(self.height) }
|
||||
|
||||
#[inline]
|
||||
pub fn to_array(&self) -> [T; 2] { [self.width, self.height] }
|
||||
|
||||
#[inline]
|
||||
pub fn to_vector(&self) -> TypedVector2D<T, U> { vec2(self.width, self.height) }
|
||||
|
||||
/// Drop the units, preserving only the numeric value.
|
||||
pub fn to_untyped(&self) -> Size2D<T> {
|
||||
TypedSize2D::new(self.width, self.height)
|
||||
}
|
||||
|
||||
/// Tag a unitless value with units.
|
||||
pub fn from_untyped(p: &Size2D<T>) -> Self {
|
||||
TypedSize2D::new(p.width, p.height)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: NumCast + Copy, Unit> TypedSize2D<T, Unit> {
|
||||
/// Cast from one numeric representation to another, preserving the units.
|
||||
///
|
||||
/// When casting from floating point to integer coordinates, the decimals are truncated
|
||||
/// as one would expect from a simple cast, but this behavior does not always make sense
|
||||
/// geometrically. Consider using `round()`, `ceil()` or `floor()` before casting.
|
||||
pub fn cast<NewT: NumCast + Copy>(&self) -> Option<TypedSize2D<NewT, Unit>> {
|
||||
match (NumCast::from(self.width), NumCast::from(self.height)) {
|
||||
(Some(w), Some(h)) => Some(TypedSize2D::new(w, h)),
|
||||
_ => None
|
||||
}
|
||||
}
|
||||
|
||||
// Convenience functions for common casts
|
||||
|
||||
/// Cast into an `f32` size.
|
||||
pub fn to_f32(&self) -> TypedSize2D<f32, Unit> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
|
||||
/// Cast into an `uint` size, truncating decimals if any.
|
||||
///
|
||||
/// When casting from floating point sizes, it is worth considering whether
|
||||
/// to `round()`, `ceil()` or `floor()` before the cast in order to obtain
|
||||
/// the desired conversion behavior.
|
||||
pub fn to_usize(&self) -> TypedSize2D<usize, Unit> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
|
||||
/// Cast into an `i32` size, truncating decimals if any.
|
||||
///
|
||||
/// When casting from floating point sizes, it is worth considering whether
|
||||
/// to `round()`, `ceil()` or `floor()` before the cast in order to obtain
|
||||
/// the desired conversion behavior.
|
||||
pub fn to_i32(&self) -> TypedSize2D<i32, Unit> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
|
||||
/// Cast into an `i64` size, truncating decimals if any.
|
||||
///
|
||||
/// When casting from floating point sizes, it is worth considering whether
|
||||
/// to `round()`, `ceil()` or `floor()` before the cast in order to obtain
|
||||
/// the desired conversion behavior.
|
||||
pub fn to_i64(&self) -> TypedSize2D<i64, Unit> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, U> TypedSize2D<T, U>
|
||||
where T: Signed {
|
||||
pub fn abs(&self) -> Self {
|
||||
size2(self.width.abs(), self.height.abs())
|
||||
}
|
||||
|
||||
pub fn is_positive(&self) -> bool {
|
||||
self.width.is_positive() && self.height.is_positive()
|
||||
}
|
||||
}
|
||||
|
||||
/// Shorthand for `TypedSize2D::new(w, h)`.
|
||||
pub fn size2<T, U>(w: T, h: T) -> TypedSize2D<T, U> {
|
||||
TypedSize2D::new(w, h)
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod size2d {
|
||||
use super::Size2D;
|
||||
|
||||
#[test]
|
||||
pub fn test_add() {
|
||||
let p1 = Size2D::new(1.0, 2.0);
|
||||
let p2 = Size2D::new(3.0, 4.0);
|
||||
assert_eq!(p1 + p2, Size2D::new(4.0, 6.0));
|
||||
|
||||
let p1 = Size2D::new(1.0, 2.0);
|
||||
let p2 = Size2D::new(0.0, 0.0);
|
||||
assert_eq!(p1 + p2, Size2D::new(1.0, 2.0));
|
||||
|
||||
let p1 = Size2D::new(1.0, 2.0);
|
||||
let p2 = Size2D::new(-3.0, -4.0);
|
||||
assert_eq!(p1 + p2, Size2D::new(-2.0, -2.0));
|
||||
|
||||
let p1 = Size2D::new(0.0, 0.0);
|
||||
let p2 = Size2D::new(0.0, 0.0);
|
||||
assert_eq!(p1 + p2, Size2D::new(0.0, 0.0));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_sub() {
|
||||
let p1 = Size2D::new(1.0, 2.0);
|
||||
let p2 = Size2D::new(3.0, 4.0);
|
||||
assert_eq!(p1 - p2, Size2D::new(-2.0, -2.0));
|
||||
|
||||
let p1 = Size2D::new(1.0, 2.0);
|
||||
let p2 = Size2D::new(0.0, 0.0);
|
||||
assert_eq!(p1 - p2, Size2D::new(1.0, 2.0));
|
||||
|
||||
let p1 = Size2D::new(1.0, 2.0);
|
||||
let p2 = Size2D::new(-3.0, -4.0);
|
||||
assert_eq!(p1 - p2, Size2D::new(4.0, 6.0));
|
||||
|
||||
let p1 = Size2D::new(0.0, 0.0);
|
||||
let p2 = Size2D::new(0.0, 0.0);
|
||||
assert_eq!(p1 - p2, Size2D::new(0.0, 0.0));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_area() {
|
||||
let p = Size2D::new(1.5, 2.0);
|
||||
assert_eq!(p.area(), 3.0);
|
||||
}
|
||||
}
|
526
third_party/rust/euclid-0.15.5/src/transform2d.rs
vendored
Normal file
526
third_party/rust/euclid-0.15.5/src/transform2d.rs
vendored
Normal file
@ -0,0 +1,526 @@
|
||||
// Copyright 2013 The Servo Project Developers. See the COPYRIGHT
|
||||
// file at the top-level directory of this distribution.
|
||||
//
|
||||
// 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.
|
||||
|
||||
use super::{UnknownUnit, Radians};
|
||||
use num::{One, Zero};
|
||||
use point::TypedPoint2D;
|
||||
use vector::{TypedVector2D, vec2};
|
||||
use rect::TypedRect;
|
||||
use transform3d::TypedTransform3D;
|
||||
use std::ops::{Add, Mul, Div, Sub, Neg};
|
||||
use std::marker::PhantomData;
|
||||
use approxeq::ApproxEq;
|
||||
use trig::Trig;
|
||||
use std::fmt;
|
||||
use num_traits::NumCast;
|
||||
|
||||
define_matrix! {
|
||||
/// A 2d transform stored as a 2 by 3 matrix in row-major order in memory.
|
||||
///
|
||||
/// Transforms can be parametrized over the source and destination units, to describe a
|
||||
/// transformation from a space to another.
|
||||
/// For example, `TypedTransform2D<f32, WordSpace, ScreenSpace>::transform_point4d`
|
||||
/// takes a `TypedPoint2D<f32, WordSpace>` and returns a `TypedPoint2D<f32, ScreenSpace>`.
|
||||
///
|
||||
/// Transforms expose a set of convenience methods for pre- and post-transformations.
|
||||
/// A pre-transformation corresponds to adding an operation that is applied before
|
||||
/// the rest of the transformation, while a post-transformation adds an operation
|
||||
/// that is applied after.
|
||||
pub struct TypedTransform2D<T, Src, Dst> {
|
||||
pub m11: T, pub m12: T,
|
||||
pub m21: T, pub m22: T,
|
||||
pub m31: T, pub m32: T,
|
||||
}
|
||||
}
|
||||
|
||||
/// The default 2d transform type with no units.
|
||||
pub type Transform2D<T> = TypedTransform2D<T, UnknownUnit, UnknownUnit>;
|
||||
|
||||
impl<T: Copy, Src, Dst> TypedTransform2D<T, Src, Dst> {
|
||||
/// Create a transform specifying its matrix elements in row-major order.
|
||||
pub fn row_major(m11: T, m12: T, m21: T, m22: T, m31: T, m32: T) -> Self {
|
||||
TypedTransform2D {
|
||||
m11: m11, m12: m12,
|
||||
m21: m21, m22: m22,
|
||||
m31: m31, m32: m32,
|
||||
_unit: PhantomData,
|
||||
}
|
||||
}
|
||||
|
||||
/// Create a transform specifying its matrix elements in column-major order.
|
||||
pub fn column_major(m11: T, m21: T, m31: T, m12: T, m22: T, m32: T) -> Self {
|
||||
TypedTransform2D {
|
||||
m11: m11, m12: m12,
|
||||
m21: m21, m22: m22,
|
||||
m31: m31, m32: m32,
|
||||
_unit: PhantomData,
|
||||
}
|
||||
}
|
||||
|
||||
/// Returns an array containing this transform's terms in row-major order (the order
|
||||
/// in which the transform is actually laid out in memory).
|
||||
pub fn to_row_major_array(&self) -> [T; 6] {
|
||||
[
|
||||
self.m11, self.m12,
|
||||
self.m21, self.m22,
|
||||
self.m31, self.m32
|
||||
]
|
||||
}
|
||||
|
||||
/// Returns an array containing this transform's terms in column-major order.
|
||||
pub fn to_column_major_array(&self) -> [T; 6] {
|
||||
[
|
||||
self.m11, self.m21, self.m31,
|
||||
self.m12, self.m22, self.m32
|
||||
]
|
||||
}
|
||||
|
||||
/// Returns an array containing this transform's 3 rows in (in row-major order)
|
||||
/// as arrays.
|
||||
///
|
||||
/// This is a convenience method to interface with other libraries like glium.
|
||||
pub fn to_row_arrays(&self) -> [[T; 2]; 3] {
|
||||
[
|
||||
[self.m11, self.m12],
|
||||
[self.m21, self.m22],
|
||||
[self.m31, self.m32],
|
||||
]
|
||||
}
|
||||
|
||||
/// Creates a transform from an array of 6 elements in row-major order.
|
||||
pub fn from_row_major_array(array: [T; 6]) -> Self {
|
||||
Self::row_major(
|
||||
array[0], array[1],
|
||||
array[2], array[3],
|
||||
array[4], array[5],
|
||||
)
|
||||
}
|
||||
|
||||
/// Creates a transform from 3 rows of 2 elements (row-major order).
|
||||
pub fn from_row_arrays(array: [[T; 2]; 3]) -> Self {
|
||||
Self::row_major(
|
||||
array[0][0], array[0][1],
|
||||
array[1][0], array[1][1],
|
||||
array[2][0], array[2][1],
|
||||
)
|
||||
}
|
||||
|
||||
/// Drop the units, preserving only the numeric value.
|
||||
pub fn to_untyped(&self) -> Transform2D<T> {
|
||||
Transform2D::row_major(
|
||||
self.m11, self.m12,
|
||||
self.m21, self.m22,
|
||||
self.m31, self.m32
|
||||
)
|
||||
}
|
||||
|
||||
/// Tag a unitless value with units.
|
||||
pub fn from_untyped(p: &Transform2D<T>) -> Self {
|
||||
TypedTransform2D::row_major(
|
||||
p.m11, p.m12,
|
||||
p.m21, p.m22,
|
||||
p.m31, p.m32
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T0: NumCast + Copy, Src, Dst> TypedTransform2D<T0, Src, Dst> {
|
||||
/// Cast from one numeric representation to another, preserving the units.
|
||||
pub fn cast<T1: NumCast + Copy>(&self) -> Option<TypedTransform2D<T1, Src, Dst>> {
|
||||
match (NumCast::from(self.m11), NumCast::from(self.m12),
|
||||
NumCast::from(self.m21), NumCast::from(self.m22),
|
||||
NumCast::from(self.m31), NumCast::from(self.m32)) {
|
||||
(Some(m11), Some(m12),
|
||||
Some(m21), Some(m22),
|
||||
Some(m31), Some(m32)) => {
|
||||
Some(TypedTransform2D::row_major(m11, m12,
|
||||
m21, m22,
|
||||
m31, m32))
|
||||
},
|
||||
_ => None
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, Src, Dst> TypedTransform2D<T, Src, Dst>
|
||||
where T: Copy +
|
||||
PartialEq +
|
||||
One + Zero {
|
||||
pub fn identity() -> Self {
|
||||
let (_0, _1) = (Zero::zero(), One::one());
|
||||
TypedTransform2D::row_major(
|
||||
_1, _0,
|
||||
_0, _1,
|
||||
_0, _0
|
||||
)
|
||||
}
|
||||
|
||||
// Intentional not public, because it checks for exact equivalence
|
||||
// while most consumers will probably want some sort of approximate
|
||||
// equivalence to deal with floating-point errors.
|
||||
fn is_identity(&self) -> bool {
|
||||
*self == TypedTransform2D::identity()
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, Src, Dst> TypedTransform2D<T, Src, Dst>
|
||||
where T: Copy + Clone +
|
||||
Add<T, Output=T> +
|
||||
Mul<T, Output=T> +
|
||||
Div<T, Output=T> +
|
||||
Sub<T, Output=T> +
|
||||
Trig +
|
||||
PartialOrd +
|
||||
One + Zero {
|
||||
|
||||
/// Returns the multiplication of the two matrices such that mat's transformation
|
||||
/// applies after self's transformation.
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn post_mul<NewDst>(&self, mat: &TypedTransform2D<T, Dst, NewDst>) -> TypedTransform2D<T, Src, NewDst> {
|
||||
TypedTransform2D::row_major(
|
||||
self.m11 * mat.m11 + self.m12 * mat.m21,
|
||||
self.m11 * mat.m12 + self.m12 * mat.m22,
|
||||
self.m21 * mat.m11 + self.m22 * mat.m21,
|
||||
self.m21 * mat.m12 + self.m22 * mat.m22,
|
||||
self.m31 * mat.m11 + self.m32 * mat.m21 + mat.m31,
|
||||
self.m31 * mat.m12 + self.m32 * mat.m22 + mat.m32,
|
||||
)
|
||||
}
|
||||
|
||||
/// Returns the multiplication of the two matrices such that mat's transformation
|
||||
/// applies before self's transformation.
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn pre_mul<NewSrc>(&self, mat: &TypedTransform2D<T, NewSrc, Src>) -> TypedTransform2D<T, NewSrc, Dst> {
|
||||
mat.post_mul(self)
|
||||
}
|
||||
|
||||
/// Returns a translation transform.
|
||||
pub fn create_translation(x: T, y: T) -> Self {
|
||||
let (_0, _1): (T, T) = (Zero::zero(), One::one());
|
||||
TypedTransform2D::row_major(
|
||||
_1, _0,
|
||||
_0, _1,
|
||||
x, y
|
||||
)
|
||||
}
|
||||
|
||||
/// Applies a translation after self's transformation and returns the resulting transform.
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn post_translate(&self, v: TypedVector2D<T, Dst>) -> Self {
|
||||
self.post_mul(&TypedTransform2D::create_translation(v.x, v.y))
|
||||
}
|
||||
|
||||
/// Applies a translation before self's transformation and returns the resulting transform.
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn pre_translate(&self, v: TypedVector2D<T, Src>) -> Self {
|
||||
self.pre_mul(&TypedTransform2D::create_translation(v.x, v.y))
|
||||
}
|
||||
|
||||
/// Returns a scale transform.
|
||||
pub fn create_scale(x: T, y: T) -> Self {
|
||||
let _0 = Zero::zero();
|
||||
TypedTransform2D::row_major(
|
||||
x, _0,
|
||||
_0, y,
|
||||
_0, _0
|
||||
)
|
||||
}
|
||||
|
||||
/// Applies a scale after self's transformation and returns the resulting transform.
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn post_scale(&self, x: T, y: T) -> Self {
|
||||
self.post_mul(&TypedTransform2D::create_scale(x, y))
|
||||
}
|
||||
|
||||
/// Applies a scale before self's transformation and returns the resulting transform.
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn pre_scale(&self, x: T, y: T) -> Self {
|
||||
TypedTransform2D::row_major(
|
||||
self.m11 * x, self.m12,
|
||||
self.m21, self.m22 * y,
|
||||
self.m31, self.m32
|
||||
)
|
||||
}
|
||||
|
||||
/// Returns a rotation transform.
|
||||
pub fn create_rotation(theta: Radians<T>) -> Self {
|
||||
let _0 = Zero::zero();
|
||||
let cos = theta.get().cos();
|
||||
let sin = theta.get().sin();
|
||||
TypedTransform2D::row_major(
|
||||
cos, _0 - sin,
|
||||
sin, cos,
|
||||
_0, _0
|
||||
)
|
||||
}
|
||||
|
||||
/// Applies a rotation after self's transformation and returns the resulting transform.
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn post_rotate(&self, theta: Radians<T>) -> Self {
|
||||
self.post_mul(&TypedTransform2D::create_rotation(theta))
|
||||
}
|
||||
|
||||
/// Applies a rotation after self's transformation and returns the resulting transform.
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn pre_rotate(&self, theta: Radians<T>) -> Self {
|
||||
self.pre_mul(&TypedTransform2D::create_rotation(theta))
|
||||
}
|
||||
|
||||
/// Returns the given point transformed by this transform.
|
||||
#[inline]
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn transform_point(&self, point: &TypedPoint2D<T, Src>) -> TypedPoint2D<T, Dst> {
|
||||
TypedPoint2D::new(point.x * self.m11 + point.y * self.m21 + self.m31,
|
||||
point.x * self.m12 + point.y * self.m22 + self.m32)
|
||||
}
|
||||
|
||||
/// Returns the given vector transformed by this matrix.
|
||||
#[inline]
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn transform_vector(&self, vec: &TypedVector2D<T, Src>) -> TypedVector2D<T, Dst> {
|
||||
vec2(vec.x * self.m11 + vec.y * self.m21,
|
||||
vec.x * self.m12 + vec.y * self.m22)
|
||||
}
|
||||
|
||||
/// Returns a rectangle that encompasses the result of transforming the given rectangle by this
|
||||
/// transform.
|
||||
#[inline]
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn transform_rect(&self, rect: &TypedRect<T, Src>) -> TypedRect<T, Dst> {
|
||||
TypedRect::from_points(&[
|
||||
self.transform_point(&rect.origin),
|
||||
self.transform_point(&rect.top_right()),
|
||||
self.transform_point(&rect.bottom_left()),
|
||||
self.transform_point(&rect.bottom_right()),
|
||||
])
|
||||
}
|
||||
|
||||
/// Computes and returns the determinant of this transform.
|
||||
pub fn determinant(&self) -> T {
|
||||
self.m11 * self.m22 - self.m12 * self.m21
|
||||
}
|
||||
|
||||
/// Returns the inverse transform if possible.
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn inverse(&self) -> Option<TypedTransform2D<T, Dst, Src>> {
|
||||
let det = self.determinant();
|
||||
|
||||
let _0: T = Zero::zero();
|
||||
let _1: T = One::one();
|
||||
|
||||
if det == _0 {
|
||||
return None;
|
||||
}
|
||||
|
||||
let inv_det = _1 / det;
|
||||
Some(TypedTransform2D::row_major(
|
||||
inv_det * self.m22,
|
||||
inv_det * (_0 - self.m12),
|
||||
inv_det * (_0 - self.m21),
|
||||
inv_det * self.m11,
|
||||
inv_det * (self.m21 * self.m32 - self.m22 * self.m31),
|
||||
inv_det * (self.m31 * self.m12 - self.m11 * self.m32),
|
||||
))
|
||||
}
|
||||
|
||||
/// Returns the same transform with a different destination unit.
|
||||
#[inline]
|
||||
pub fn with_destination<NewDst>(&self) -> TypedTransform2D<T, Src, NewDst> {
|
||||
TypedTransform2D::row_major(
|
||||
self.m11, self.m12,
|
||||
self.m21, self.m22,
|
||||
self.m31, self.m32,
|
||||
)
|
||||
}
|
||||
|
||||
/// Returns the same transform with a different source unit.
|
||||
#[inline]
|
||||
pub fn with_source<NewSrc>(&self) -> TypedTransform2D<T, NewSrc, Dst> {
|
||||
TypedTransform2D::row_major(
|
||||
self.m11, self.m12,
|
||||
self.m21, self.m22,
|
||||
self.m31, self.m32,
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
impl <T, Src, Dst> TypedTransform2D<T, Src, Dst>
|
||||
where T: Copy + Clone +
|
||||
Add<T, Output=T> +
|
||||
Sub<T, Output=T> +
|
||||
Mul<T, Output=T> +
|
||||
Div<T, Output=T> +
|
||||
Neg<Output=T> +
|
||||
ApproxEq<T> +
|
||||
PartialOrd +
|
||||
Trig +
|
||||
One + Zero {
|
||||
/// Create a 3D transform from the current transform
|
||||
pub fn to_3d(&self) -> TypedTransform3D<T, Src, Dst> {
|
||||
TypedTransform3D::row_major_2d(self.m11, self.m12, self.m21, self.m22, self.m31, self.m32)
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
impl<T: ApproxEq<T>, Src, Dst> TypedTransform2D<T, Src, Dst> {
|
||||
pub fn approx_eq(&self, other: &Self) -> bool {
|
||||
self.m11.approx_eq(&other.m11) && self.m12.approx_eq(&other.m12) &&
|
||||
self.m21.approx_eq(&other.m21) && self.m22.approx_eq(&other.m22) &&
|
||||
self.m31.approx_eq(&other.m31) && self.m32.approx_eq(&other.m32)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + fmt::Debug, Src, Dst> fmt::Debug for TypedTransform2D<T, Src, Dst>
|
||||
where T: Copy + fmt::Debug +
|
||||
PartialEq +
|
||||
One + Zero {
|
||||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||
if self.is_identity() {
|
||||
write!(f, "[I]")
|
||||
} else {
|
||||
self.to_row_major_array().fmt(f)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod test {
|
||||
use super::*;
|
||||
use approxeq::ApproxEq;
|
||||
use point::Point2D;
|
||||
use Radians;
|
||||
|
||||
use std::f32::consts::FRAC_PI_2;
|
||||
|
||||
type Mat = Transform2D<f32>;
|
||||
|
||||
fn rad(v: f32) -> Radians<f32> { Radians::new(v) }
|
||||
|
||||
#[test]
|
||||
pub fn test_translation() {
|
||||
let t1 = Mat::create_translation(1.0, 2.0);
|
||||
let t2 = Mat::identity().pre_translate(vec2(1.0, 2.0));
|
||||
let t3 = Mat::identity().post_translate(vec2(1.0, 2.0));
|
||||
assert_eq!(t1, t2);
|
||||
assert_eq!(t1, t3);
|
||||
|
||||
assert_eq!(t1.transform_point(&Point2D::new(1.0, 1.0)), Point2D::new(2.0, 3.0));
|
||||
|
||||
assert_eq!(t1.post_mul(&t1), Mat::create_translation(2.0, 4.0));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_rotation() {
|
||||
let r1 = Mat::create_rotation(rad(FRAC_PI_2));
|
||||
let r2 = Mat::identity().pre_rotate(rad(FRAC_PI_2));
|
||||
let r3 = Mat::identity().post_rotate(rad(FRAC_PI_2));
|
||||
assert_eq!(r1, r2);
|
||||
assert_eq!(r1, r3);
|
||||
|
||||
assert!(r1.transform_point(&Point2D::new(1.0, 2.0)).approx_eq(&Point2D::new(2.0, -1.0)));
|
||||
|
||||
assert!(r1.post_mul(&r1).approx_eq(&Mat::create_rotation(rad(FRAC_PI_2*2.0))));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_scale() {
|
||||
let s1 = Mat::create_scale(2.0, 3.0);
|
||||
let s2 = Mat::identity().pre_scale(2.0, 3.0);
|
||||
let s3 = Mat::identity().post_scale(2.0, 3.0);
|
||||
assert_eq!(s1, s2);
|
||||
assert_eq!(s1, s3);
|
||||
|
||||
assert!(s1.transform_point(&Point2D::new(2.0, 2.0)).approx_eq(&Point2D::new(4.0, 6.0)));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_column_major() {
|
||||
assert_eq!(
|
||||
Mat::row_major(
|
||||
1.0, 2.0,
|
||||
3.0, 4.0,
|
||||
5.0, 6.0
|
||||
),
|
||||
Mat::column_major(
|
||||
1.0, 3.0, 5.0,
|
||||
2.0, 4.0, 6.0,
|
||||
)
|
||||
);
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_inverse_simple() {
|
||||
let m1 = Mat::identity();
|
||||
let m2 = m1.inverse().unwrap();
|
||||
assert!(m1.approx_eq(&m2));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_inverse_scale() {
|
||||
let m1 = Mat::create_scale(1.5, 0.3);
|
||||
let m2 = m1.inverse().unwrap();
|
||||
assert!(m1.pre_mul(&m2).approx_eq(&Mat::identity()));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_inverse_translate() {
|
||||
let m1 = Mat::create_translation(-132.0, 0.3);
|
||||
let m2 = m1.inverse().unwrap();
|
||||
assert!(m1.pre_mul(&m2).approx_eq(&Mat::identity()));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_inverse_none() {
|
||||
assert!(Mat::create_scale(2.0, 0.0).inverse().is_none());
|
||||
assert!(Mat::create_scale(2.0, 2.0).inverse().is_some());
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_pre_post() {
|
||||
let m1 = Transform2D::identity().post_scale(1.0, 2.0).post_translate(vec2(1.0, 2.0));
|
||||
let m2 = Transform2D::identity().pre_translate(vec2(1.0, 2.0)).pre_scale(1.0, 2.0);
|
||||
assert!(m1.approx_eq(&m2));
|
||||
|
||||
let r = Mat::create_rotation(rad(FRAC_PI_2));
|
||||
let t = Mat::create_translation(2.0, 3.0);
|
||||
|
||||
let a = Point2D::new(1.0, 1.0);
|
||||
|
||||
assert!(r.post_mul(&t).transform_point(&a).approx_eq(&Point2D::new(3.0, 2.0)));
|
||||
assert!(t.post_mul(&r).transform_point(&a).approx_eq(&Point2D::new(4.0, -3.0)));
|
||||
assert!(t.post_mul(&r).transform_point(&a).approx_eq(&r.transform_point(&t.transform_point(&a))));
|
||||
|
||||
assert!(r.pre_mul(&t).transform_point(&a).approx_eq(&Point2D::new(4.0, -3.0)));
|
||||
assert!(t.pre_mul(&r).transform_point(&a).approx_eq(&Point2D::new(3.0, 2.0)));
|
||||
assert!(t.pre_mul(&r).transform_point(&a).approx_eq(&t.transform_point(&r.transform_point(&a))));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_size_of() {
|
||||
use std::mem::size_of;
|
||||
assert_eq!(size_of::<Transform2D<f32>>(), 6*size_of::<f32>());
|
||||
assert_eq!(size_of::<Transform2D<f64>>(), 6*size_of::<f64>());
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_is_identity() {
|
||||
let m1 = Transform2D::identity();
|
||||
assert!(m1.is_identity());
|
||||
let m2 = m1.post_translate(vec2(0.1, 0.0));
|
||||
assert!(!m2.is_identity());
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_transform_vector() {
|
||||
// Translation does not apply to vectors.
|
||||
let m1 = Mat::create_translation(1.0, 1.0);
|
||||
let v1 = vec2(10.0, -10.0);
|
||||
assert_eq!(v1, m1.transform_vector(&v1));
|
||||
}
|
||||
}
|
945
third_party/rust/euclid-0.15.5/src/transform3d.rs
vendored
Normal file
945
third_party/rust/euclid-0.15.5/src/transform3d.rs
vendored
Normal file
@ -0,0 +1,945 @@
|
||||
// Copyright 2013 The Servo Project Developers. See the COPYRIGHT
|
||||
// file at the top-level directory of this distribution.
|
||||
//
|
||||
// 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.
|
||||
|
||||
use super::{UnknownUnit, Radians};
|
||||
use approxeq::ApproxEq;
|
||||
use trig::Trig;
|
||||
use point::{TypedPoint2D, TypedPoint3D, point2, point3};
|
||||
use vector::{TypedVector2D, TypedVector3D, vec2, vec3};
|
||||
use rect::TypedRect;
|
||||
use transform2d::TypedTransform2D;
|
||||
use scale_factor::ScaleFactor;
|
||||
use num::{One, Zero};
|
||||
use std::ops::{Add, Mul, Sub, Div, Neg};
|
||||
use std::marker::PhantomData;
|
||||
use std::fmt;
|
||||
use num_traits::NumCast;
|
||||
|
||||
define_matrix! {
|
||||
/// A 3d transform stored as a 4 by 4 matrix in row-major order in memory.
|
||||
///
|
||||
/// Transforms can be parametrized over the source and destination units, to describe a
|
||||
/// transformation from a space to another.
|
||||
/// For example, `TypedTransform3D<f32, WordSpace, ScreenSpace>::transform_point3d`
|
||||
/// takes a `TypedPoint3D<f32, WordSpace>` and returns a `TypedPoint3D<f32, ScreenSpace>`.
|
||||
///
|
||||
/// Transforms expose a set of convenience methods for pre- and post-transformations.
|
||||
/// A pre-transformation corresponds to adding an operation that is applied before
|
||||
/// the rest of the transformation, while a post-transformation adds an operation
|
||||
/// that is applied after.
|
||||
pub struct TypedTransform3D<T, Src, Dst> {
|
||||
pub m11: T, pub m12: T, pub m13: T, pub m14: T,
|
||||
pub m21: T, pub m22: T, pub m23: T, pub m24: T,
|
||||
pub m31: T, pub m32: T, pub m33: T, pub m34: T,
|
||||
pub m41: T, pub m42: T, pub m43: T, pub m44: T,
|
||||
}
|
||||
}
|
||||
|
||||
/// The default 4d transform type with no units.
|
||||
pub type Transform3D<T> = TypedTransform3D<T, UnknownUnit, UnknownUnit>;
|
||||
|
||||
impl<T, Src, Dst> TypedTransform3D<T, Src, Dst> {
|
||||
/// Create a transform specifying its components in row-major order.
|
||||
///
|
||||
/// For example, the translation terms m41, m42, m43 on the last row with the
|
||||
/// row-major convention) are the 13rd, 14th and 15th parameters.
|
||||
#[inline]
|
||||
pub fn row_major(
|
||||
m11: T, m12: T, m13: T, m14: T,
|
||||
m21: T, m22: T, m23: T, m24: T,
|
||||
m31: T, m32: T, m33: T, m34: T,
|
||||
m41: T, m42: T, m43: T, m44: T)
|
||||
-> Self {
|
||||
TypedTransform3D {
|
||||
m11: m11, m12: m12, m13: m13, m14: m14,
|
||||
m21: m21, m22: m22, m23: m23, m24: m24,
|
||||
m31: m31, m32: m32, m33: m33, m34: m34,
|
||||
m41: m41, m42: m42, m43: m43, m44: m44,
|
||||
_unit: PhantomData,
|
||||
}
|
||||
}
|
||||
|
||||
/// Create a transform specifying its components in column-major order.
|
||||
///
|
||||
/// For example, the translation terms m41, m42, m43 on the last column with the
|
||||
/// column-major convention) are the 4th, 8th and 12nd parameters.
|
||||
#[inline]
|
||||
pub fn column_major(
|
||||
m11: T, m21: T, m31: T, m41: T,
|
||||
m12: T, m22: T, m32: T, m42: T,
|
||||
m13: T, m23: T, m33: T, m43: T,
|
||||
m14: T, m24: T, m34: T, m44: T)
|
||||
-> Self {
|
||||
TypedTransform3D {
|
||||
m11: m11, m12: m12, m13: m13, m14: m14,
|
||||
m21: m21, m22: m22, m23: m23, m24: m24,
|
||||
m31: m31, m32: m32, m33: m33, m34: m34,
|
||||
m41: m41, m42: m42, m43: m43, m44: m44,
|
||||
_unit: PhantomData,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl <T, Src, Dst> TypedTransform3D<T, Src, Dst>
|
||||
where T: Copy + Clone +
|
||||
PartialEq +
|
||||
One + Zero {
|
||||
#[inline]
|
||||
pub fn identity() -> Self {
|
||||
let (_0, _1): (T, T) = (Zero::zero(), One::one());
|
||||
TypedTransform3D::row_major(
|
||||
_1, _0, _0, _0,
|
||||
_0, _1, _0, _0,
|
||||
_0, _0, _1, _0,
|
||||
_0, _0, _0, _1
|
||||
)
|
||||
}
|
||||
|
||||
// Intentional not public, because it checks for exact equivalence
|
||||
// while most consumers will probably want some sort of approximate
|
||||
// equivalence to deal with floating-point errors.
|
||||
#[inline]
|
||||
fn is_identity(&self) -> bool {
|
||||
*self == TypedTransform3D::identity()
|
||||
}
|
||||
}
|
||||
|
||||
impl <T, Src, Dst> TypedTransform3D<T, Src, Dst>
|
||||
where T: Copy + Clone +
|
||||
Add<T, Output=T> +
|
||||
Sub<T, Output=T> +
|
||||
Mul<T, Output=T> +
|
||||
Div<T, Output=T> +
|
||||
Neg<Output=T> +
|
||||
ApproxEq<T> +
|
||||
PartialOrd +
|
||||
Trig +
|
||||
One + Zero {
|
||||
|
||||
/// Create a 4 by 4 transform representing a 2d transformation, specifying its components
|
||||
/// in row-major order.
|
||||
#[inline]
|
||||
pub fn row_major_2d(m11: T, m12: T, m21: T, m22: T, m41: T, m42: T) -> Self {
|
||||
let (_0, _1): (T, T) = (Zero::zero(), One::one());
|
||||
TypedTransform3D::row_major(
|
||||
m11, m12, _0, _0,
|
||||
m21, m22, _0, _0,
|
||||
_0, _0, _1, _0,
|
||||
m41, m42, _0, _1
|
||||
)
|
||||
}
|
||||
|
||||
/// Create an orthogonal projection transform.
|
||||
pub fn ortho(left: T, right: T,
|
||||
bottom: T, top: T,
|
||||
near: T, far: T) -> Self {
|
||||
let tx = -((right + left) / (right - left));
|
||||
let ty = -((top + bottom) / (top - bottom));
|
||||
let tz = -((far + near) / (far - near));
|
||||
|
||||
let (_0, _1): (T, T) = (Zero::zero(), One::one());
|
||||
let _2 = _1 + _1;
|
||||
TypedTransform3D::row_major(
|
||||
_2 / (right - left), _0 , _0 , _0,
|
||||
_0 , _2 / (top - bottom), _0 , _0,
|
||||
_0 , _0 , -_2 / (far - near), _0,
|
||||
tx , ty , tz , _1
|
||||
)
|
||||
}
|
||||
|
||||
/// Returns true if this transform can be represented with a TypedTransform2D.
|
||||
///
|
||||
/// See https://drafts.csswg.org/css-transforms/#2d-transform
|
||||
#[inline]
|
||||
pub fn is_2d(&self) -> bool {
|
||||
let (_0, _1): (T, T) = (Zero::zero(), One::one());
|
||||
self.m31 == _0 && self.m32 == _0 &&
|
||||
self.m13 == _0 && self.m23 == _0 &&
|
||||
self.m43 == _0 && self.m14 == _0 &&
|
||||
self.m24 == _0 && self.m34 == _0 &&
|
||||
self.m33 == _1 && self.m44 == _1
|
||||
}
|
||||
|
||||
/// Create a 2D transform picking the relevent terms from this transform.
|
||||
///
|
||||
/// This method assumes that self represents a 2d transformation, callers
|
||||
/// should check that self.is_2d() returns true beforehand.
|
||||
pub fn to_2d(&self) -> TypedTransform2D<T, Src, Dst> {
|
||||
TypedTransform2D::row_major(
|
||||
self.m11, self.m12,
|
||||
self.m21, self.m22,
|
||||
self.m41, self.m42
|
||||
)
|
||||
}
|
||||
|
||||
/// Check whether shapes on the XY plane with Z pointing towards the
|
||||
/// screen transformed by this matrix would be facing back.
|
||||
pub fn is_backface_visible(&self) -> bool {
|
||||
// inverse().m33 < 0;
|
||||
let det = self.determinant();
|
||||
let m33 = self.m12 * self.m24 * self.m41 - self.m14 * self.m22 * self.m41 +
|
||||
self.m14 * self.m21 * self.m42 - self.m11 * self.m24 * self.m42 -
|
||||
self.m12 * self.m21 * self.m44 + self.m11 * self.m22 * self.m44;
|
||||
let _0: T = Zero::zero();
|
||||
(m33 * det) < _0
|
||||
}
|
||||
|
||||
pub fn approx_eq(&self, other: &Self) -> bool {
|
||||
self.m11.approx_eq(&other.m11) && self.m12.approx_eq(&other.m12) &&
|
||||
self.m13.approx_eq(&other.m13) && self.m14.approx_eq(&other.m14) &&
|
||||
self.m21.approx_eq(&other.m21) && self.m22.approx_eq(&other.m22) &&
|
||||
self.m23.approx_eq(&other.m23) && self.m24.approx_eq(&other.m24) &&
|
||||
self.m31.approx_eq(&other.m31) && self.m32.approx_eq(&other.m32) &&
|
||||
self.m33.approx_eq(&other.m33) && self.m34.approx_eq(&other.m34) &&
|
||||
self.m41.approx_eq(&other.m41) && self.m42.approx_eq(&other.m42) &&
|
||||
self.m43.approx_eq(&other.m43) && self.m44.approx_eq(&other.m44)
|
||||
}
|
||||
|
||||
/// Returns the same transform with a different destination unit.
|
||||
#[inline]
|
||||
pub fn with_destination<NewDst>(&self) -> TypedTransform3D<T, Src, NewDst> {
|
||||
TypedTransform3D::row_major(
|
||||
self.m11, self.m12, self.m13, self.m14,
|
||||
self.m21, self.m22, self.m23, self.m24,
|
||||
self.m31, self.m32, self.m33, self.m34,
|
||||
self.m41, self.m42, self.m43, self.m44,
|
||||
)
|
||||
}
|
||||
|
||||
/// Returns the same transform with a different source unit.
|
||||
#[inline]
|
||||
pub fn with_source<NewSrc>(&self) -> TypedTransform3D<T, NewSrc, Dst> {
|
||||
TypedTransform3D::row_major(
|
||||
self.m11, self.m12, self.m13, self.m14,
|
||||
self.m21, self.m22, self.m23, self.m24,
|
||||
self.m31, self.m32, self.m33, self.m34,
|
||||
self.m41, self.m42, self.m43, self.m44,
|
||||
)
|
||||
}
|
||||
|
||||
/// Drop the units, preserving only the numeric value.
|
||||
#[inline]
|
||||
pub fn to_untyped(&self) -> Transform3D<T> {
|
||||
Transform3D::row_major(
|
||||
self.m11, self.m12, self.m13, self.m14,
|
||||
self.m21, self.m22, self.m23, self.m24,
|
||||
self.m31, self.m32, self.m33, self.m34,
|
||||
self.m41, self.m42, self.m43, self.m44,
|
||||
)
|
||||
}
|
||||
|
||||
/// Tag a unitless value with units.
|
||||
#[inline]
|
||||
pub fn from_untyped(m: &Transform3D<T>) -> Self {
|
||||
TypedTransform3D::row_major(
|
||||
m.m11, m.m12, m.m13, m.m14,
|
||||
m.m21, m.m22, m.m23, m.m24,
|
||||
m.m31, m.m32, m.m33, m.m34,
|
||||
m.m41, m.m42, m.m43, m.m44,
|
||||
)
|
||||
}
|
||||
|
||||
/// Returns the multiplication of the two matrices such that mat's transformation
|
||||
/// applies after self's transformation.
|
||||
pub fn post_mul<NewDst>(&self, mat: &TypedTransform3D<T, Dst, NewDst>) -> TypedTransform3D<T, Src, NewDst> {
|
||||
TypedTransform3D::row_major(
|
||||
self.m11 * mat.m11 + self.m12 * mat.m21 + self.m13 * mat.m31 + self.m14 * mat.m41,
|
||||
self.m11 * mat.m12 + self.m12 * mat.m22 + self.m13 * mat.m32 + self.m14 * mat.m42,
|
||||
self.m11 * mat.m13 + self.m12 * mat.m23 + self.m13 * mat.m33 + self.m14 * mat.m43,
|
||||
self.m11 * mat.m14 + self.m12 * mat.m24 + self.m13 * mat.m34 + self.m14 * mat.m44,
|
||||
self.m21 * mat.m11 + self.m22 * mat.m21 + self.m23 * mat.m31 + self.m24 * mat.m41,
|
||||
self.m21 * mat.m12 + self.m22 * mat.m22 + self.m23 * mat.m32 + self.m24 * mat.m42,
|
||||
self.m21 * mat.m13 + self.m22 * mat.m23 + self.m23 * mat.m33 + self.m24 * mat.m43,
|
||||
self.m21 * mat.m14 + self.m22 * mat.m24 + self.m23 * mat.m34 + self.m24 * mat.m44,
|
||||
self.m31 * mat.m11 + self.m32 * mat.m21 + self.m33 * mat.m31 + self.m34 * mat.m41,
|
||||
self.m31 * mat.m12 + self.m32 * mat.m22 + self.m33 * mat.m32 + self.m34 * mat.m42,
|
||||
self.m31 * mat.m13 + self.m32 * mat.m23 + self.m33 * mat.m33 + self.m34 * mat.m43,
|
||||
self.m31 * mat.m14 + self.m32 * mat.m24 + self.m33 * mat.m34 + self.m34 * mat.m44,
|
||||
self.m41 * mat.m11 + self.m42 * mat.m21 + self.m43 * mat.m31 + self.m44 * mat.m41,
|
||||
self.m41 * mat.m12 + self.m42 * mat.m22 + self.m43 * mat.m32 + self.m44 * mat.m42,
|
||||
self.m41 * mat.m13 + self.m42 * mat.m23 + self.m43 * mat.m33 + self.m44 * mat.m43,
|
||||
self.m41 * mat.m14 + self.m42 * mat.m24 + self.m43 * mat.m34 + self.m44 * mat.m44,
|
||||
)
|
||||
}
|
||||
|
||||
/// Returns the multiplication of the two matrices such that mat's transformation
|
||||
/// applies before self's transformation.
|
||||
pub fn pre_mul<NewSrc>(&self, mat: &TypedTransform3D<T, NewSrc, Src>) -> TypedTransform3D<T, NewSrc, Dst> {
|
||||
mat.post_mul(self)
|
||||
}
|
||||
|
||||
/// Returns the inverse transform if possible.
|
||||
pub fn inverse(&self) -> Option<TypedTransform3D<T, Dst, Src>> {
|
||||
let det = self.determinant();
|
||||
|
||||
if det == Zero::zero() {
|
||||
return None;
|
||||
}
|
||||
|
||||
// todo(gw): this could be made faster by special casing
|
||||
// for simpler transform types.
|
||||
let m = TypedTransform3D::row_major(
|
||||
self.m23*self.m34*self.m42 - self.m24*self.m33*self.m42 +
|
||||
self.m24*self.m32*self.m43 - self.m22*self.m34*self.m43 -
|
||||
self.m23*self.m32*self.m44 + self.m22*self.m33*self.m44,
|
||||
|
||||
self.m14*self.m33*self.m42 - self.m13*self.m34*self.m42 -
|
||||
self.m14*self.m32*self.m43 + self.m12*self.m34*self.m43 +
|
||||
self.m13*self.m32*self.m44 - self.m12*self.m33*self.m44,
|
||||
|
||||
self.m13*self.m24*self.m42 - self.m14*self.m23*self.m42 +
|
||||
self.m14*self.m22*self.m43 - self.m12*self.m24*self.m43 -
|
||||
self.m13*self.m22*self.m44 + self.m12*self.m23*self.m44,
|
||||
|
||||
self.m14*self.m23*self.m32 - self.m13*self.m24*self.m32 -
|
||||
self.m14*self.m22*self.m33 + self.m12*self.m24*self.m33 +
|
||||
self.m13*self.m22*self.m34 - self.m12*self.m23*self.m34,
|
||||
|
||||
self.m24*self.m33*self.m41 - self.m23*self.m34*self.m41 -
|
||||
self.m24*self.m31*self.m43 + self.m21*self.m34*self.m43 +
|
||||
self.m23*self.m31*self.m44 - self.m21*self.m33*self.m44,
|
||||
|
||||
self.m13*self.m34*self.m41 - self.m14*self.m33*self.m41 +
|
||||
self.m14*self.m31*self.m43 - self.m11*self.m34*self.m43 -
|
||||
self.m13*self.m31*self.m44 + self.m11*self.m33*self.m44,
|
||||
|
||||
self.m14*self.m23*self.m41 - self.m13*self.m24*self.m41 -
|
||||
self.m14*self.m21*self.m43 + self.m11*self.m24*self.m43 +
|
||||
self.m13*self.m21*self.m44 - self.m11*self.m23*self.m44,
|
||||
|
||||
self.m13*self.m24*self.m31 - self.m14*self.m23*self.m31 +
|
||||
self.m14*self.m21*self.m33 - self.m11*self.m24*self.m33 -
|
||||
self.m13*self.m21*self.m34 + self.m11*self.m23*self.m34,
|
||||
|
||||
self.m22*self.m34*self.m41 - self.m24*self.m32*self.m41 +
|
||||
self.m24*self.m31*self.m42 - self.m21*self.m34*self.m42 -
|
||||
self.m22*self.m31*self.m44 + self.m21*self.m32*self.m44,
|
||||
|
||||
self.m14*self.m32*self.m41 - self.m12*self.m34*self.m41 -
|
||||
self.m14*self.m31*self.m42 + self.m11*self.m34*self.m42 +
|
||||
self.m12*self.m31*self.m44 - self.m11*self.m32*self.m44,
|
||||
|
||||
self.m12*self.m24*self.m41 - self.m14*self.m22*self.m41 +
|
||||
self.m14*self.m21*self.m42 - self.m11*self.m24*self.m42 -
|
||||
self.m12*self.m21*self.m44 + self.m11*self.m22*self.m44,
|
||||
|
||||
self.m14*self.m22*self.m31 - self.m12*self.m24*self.m31 -
|
||||
self.m14*self.m21*self.m32 + self.m11*self.m24*self.m32 +
|
||||
self.m12*self.m21*self.m34 - self.m11*self.m22*self.m34,
|
||||
|
||||
self.m23*self.m32*self.m41 - self.m22*self.m33*self.m41 -
|
||||
self.m23*self.m31*self.m42 + self.m21*self.m33*self.m42 +
|
||||
self.m22*self.m31*self.m43 - self.m21*self.m32*self.m43,
|
||||
|
||||
self.m12*self.m33*self.m41 - self.m13*self.m32*self.m41 +
|
||||
self.m13*self.m31*self.m42 - self.m11*self.m33*self.m42 -
|
||||
self.m12*self.m31*self.m43 + self.m11*self.m32*self.m43,
|
||||
|
||||
self.m13*self.m22*self.m41 - self.m12*self.m23*self.m41 -
|
||||
self.m13*self.m21*self.m42 + self.m11*self.m23*self.m42 +
|
||||
self.m12*self.m21*self.m43 - self.m11*self.m22*self.m43,
|
||||
|
||||
self.m12*self.m23*self.m31 - self.m13*self.m22*self.m31 +
|
||||
self.m13*self.m21*self.m32 - self.m11*self.m23*self.m32 -
|
||||
self.m12*self.m21*self.m33 + self.m11*self.m22*self.m33
|
||||
);
|
||||
|
||||
let _1: T = One::one();
|
||||
Some(m.mul_s(_1 / det))
|
||||
}
|
||||
|
||||
/// Compute the determinant of the transform.
|
||||
pub fn determinant(&self) -> T {
|
||||
self.m14 * self.m23 * self.m32 * self.m41 -
|
||||
self.m13 * self.m24 * self.m32 * self.m41 -
|
||||
self.m14 * self.m22 * self.m33 * self.m41 +
|
||||
self.m12 * self.m24 * self.m33 * self.m41 +
|
||||
self.m13 * self.m22 * self.m34 * self.m41 -
|
||||
self.m12 * self.m23 * self.m34 * self.m41 -
|
||||
self.m14 * self.m23 * self.m31 * self.m42 +
|
||||
self.m13 * self.m24 * self.m31 * self.m42 +
|
||||
self.m14 * self.m21 * self.m33 * self.m42 -
|
||||
self.m11 * self.m24 * self.m33 * self.m42 -
|
||||
self.m13 * self.m21 * self.m34 * self.m42 +
|
||||
self.m11 * self.m23 * self.m34 * self.m42 +
|
||||
self.m14 * self.m22 * self.m31 * self.m43 -
|
||||
self.m12 * self.m24 * self.m31 * self.m43 -
|
||||
self.m14 * self.m21 * self.m32 * self.m43 +
|
||||
self.m11 * self.m24 * self.m32 * self.m43 +
|
||||
self.m12 * self.m21 * self.m34 * self.m43 -
|
||||
self.m11 * self.m22 * self.m34 * self.m43 -
|
||||
self.m13 * self.m22 * self.m31 * self.m44 +
|
||||
self.m12 * self.m23 * self.m31 * self.m44 +
|
||||
self.m13 * self.m21 * self.m32 * self.m44 -
|
||||
self.m11 * self.m23 * self.m32 * self.m44 -
|
||||
self.m12 * self.m21 * self.m33 * self.m44 +
|
||||
self.m11 * self.m22 * self.m33 * self.m44
|
||||
}
|
||||
|
||||
/// Multiplies all of the transform's component by a scalar and returns the result.
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn mul_s(&self, x: T) -> Self {
|
||||
TypedTransform3D::row_major(
|
||||
self.m11 * x, self.m12 * x, self.m13 * x, self.m14 * x,
|
||||
self.m21 * x, self.m22 * x, self.m23 * x, self.m24 * x,
|
||||
self.m31 * x, self.m32 * x, self.m33 * x, self.m34 * x,
|
||||
self.m41 * x, self.m42 * x, self.m43 * x, self.m44 * x
|
||||
)
|
||||
}
|
||||
|
||||
/// Convenience function to create a scale transform from a ScaleFactor.
|
||||
pub fn from_scale_factor(scale: ScaleFactor<T, Src, Dst>) -> Self {
|
||||
TypedTransform3D::create_scale(scale.get(), scale.get(), scale.get())
|
||||
}
|
||||
|
||||
/// Returns the given 2d point transformed by this transform.
|
||||
///
|
||||
/// The input point must be use the unit Src, and the returned point has the unit Dst.
|
||||
#[inline]
|
||||
pub fn transform_point2d(&self, p: &TypedPoint2D<T, Src>) -> TypedPoint2D<T, Dst> {
|
||||
let x = p.x * self.m11 + p.y * self.m21 + self.m41;
|
||||
let y = p.x * self.m12 + p.y * self.m22 + self.m42;
|
||||
|
||||
let w = p.x * self.m14 + p.y * self.m24 + self.m44;
|
||||
|
||||
point2(x/w, y/w)
|
||||
}
|
||||
|
||||
/// Returns the given 2d vector transformed by this matrix.
|
||||
///
|
||||
/// The input point must be use the unit Src, and the returned point has the unit Dst.
|
||||
#[inline]
|
||||
pub fn transform_vector2d(&self, v: &TypedVector2D<T, Src>) -> TypedVector2D<T, Dst> {
|
||||
vec2(
|
||||
v.x * self.m11 + v.y * self.m21,
|
||||
v.x * self.m12 + v.y * self.m22,
|
||||
)
|
||||
}
|
||||
|
||||
/// Returns the given 3d point transformed by this transform.
|
||||
///
|
||||
/// The input point must be use the unit Src, and the returned point has the unit Dst.
|
||||
#[inline]
|
||||
pub fn transform_point3d(&self, p: &TypedPoint3D<T, Src>) -> TypedPoint3D<T, Dst> {
|
||||
let x = p.x * self.m11 + p.y * self.m21 + p.z * self.m31 + self.m41;
|
||||
let y = p.x * self.m12 + p.y * self.m22 + p.z * self.m32 + self.m42;
|
||||
let z = p.x * self.m13 + p.y * self.m23 + p.z * self.m33 + self.m43;
|
||||
let w = p.x * self.m14 + p.y * self.m24 + p.z * self.m34 + self.m44;
|
||||
|
||||
point3(x/w, y/w, z/w)
|
||||
}
|
||||
|
||||
/// Returns the given 3d vector transformed by this matrix.
|
||||
///
|
||||
/// The input point must be use the unit Src, and the returned point has the unit Dst.
|
||||
#[inline]
|
||||
pub fn transform_vector3d(&self, v: &TypedVector3D<T, Src>) -> TypedVector3D<T, Dst> {
|
||||
vec3(
|
||||
v.x * self.m11 + v.y * self.m21 + v.z * self.m31,
|
||||
v.x * self.m12 + v.y * self.m22 + v.z * self.m32,
|
||||
v.x * self.m13 + v.y * self.m23 + v.z * self.m33,
|
||||
)
|
||||
}
|
||||
|
||||
/// Returns a rectangle that encompasses the result of transforming the given rectangle by this
|
||||
/// transform.
|
||||
pub fn transform_rect(&self, rect: &TypedRect<T, Src>) -> TypedRect<T, Dst> {
|
||||
TypedRect::from_points(&[
|
||||
self.transform_point2d(&rect.origin),
|
||||
self.transform_point2d(&rect.top_right()),
|
||||
self.transform_point2d(&rect.bottom_left()),
|
||||
self.transform_point2d(&rect.bottom_right()),
|
||||
])
|
||||
}
|
||||
|
||||
/// Create a 3d translation transform
|
||||
pub fn create_translation(x: T, y: T, z: T) -> Self {
|
||||
let (_0, _1): (T, T) = (Zero::zero(), One::one());
|
||||
TypedTransform3D::row_major(
|
||||
_1, _0, _0, _0,
|
||||
_0, _1, _0, _0,
|
||||
_0, _0, _1, _0,
|
||||
x, y, z, _1
|
||||
)
|
||||
}
|
||||
|
||||
/// Returns a transform with a translation applied before self's transformation.
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn pre_translate(&self, v: TypedVector3D<T, Src>) -> Self {
|
||||
self.pre_mul(&TypedTransform3D::create_translation(v.x, v.y, v.z))
|
||||
}
|
||||
|
||||
/// Returns a transform with a translation applied after self's transformation.
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn post_translate(&self, v: TypedVector3D<T, Dst>) -> Self {
|
||||
self.post_mul(&TypedTransform3D::create_translation(v.x, v.y, v.z))
|
||||
}
|
||||
|
||||
/// Create a 3d scale transform
|
||||
pub fn create_scale(x: T, y: T, z: T) -> Self {
|
||||
let (_0, _1): (T, T) = (Zero::zero(), One::one());
|
||||
TypedTransform3D::row_major(
|
||||
x, _0, _0, _0,
|
||||
_0, y, _0, _0,
|
||||
_0, _0, z, _0,
|
||||
_0, _0, _0, _1
|
||||
)
|
||||
}
|
||||
|
||||
/// Returns a transform with a scale applied before self's transformation.
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn pre_scale(&self, x: T, y: T, z: T) -> Self {
|
||||
TypedTransform3D::row_major(
|
||||
self.m11 * x, self.m12, self.m13, self.m14,
|
||||
self.m21 , self.m22 * y, self.m23, self.m24,
|
||||
self.m31 , self.m32, self.m33 * z, self.m34,
|
||||
self.m41 , self.m42, self.m43, self.m44
|
||||
)
|
||||
}
|
||||
|
||||
/// Returns a transform with a scale applied after self's transformation.
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn post_scale(&self, x: T, y: T, z: T) -> Self {
|
||||
self.post_mul(&TypedTransform3D::create_scale(x, y, z))
|
||||
}
|
||||
|
||||
/// Create a 3d rotation transform from an angle / axis.
|
||||
/// The supplied axis must be normalized.
|
||||
pub fn create_rotation(x: T, y: T, z: T, theta: Radians<T>) -> Self {
|
||||
let (_0, _1): (T, T) = (Zero::zero(), One::one());
|
||||
let _2 = _1 + _1;
|
||||
|
||||
let xx = x * x;
|
||||
let yy = y * y;
|
||||
let zz = z * z;
|
||||
|
||||
let half_theta = theta.get() / _2;
|
||||
let sc = half_theta.sin() * half_theta.cos();
|
||||
let sq = half_theta.sin() * half_theta.sin();
|
||||
|
||||
TypedTransform3D::row_major(
|
||||
_1 - _2 * (yy + zz) * sq,
|
||||
_2 * (x * y * sq - z * sc),
|
||||
_2 * (x * z * sq + y * sc),
|
||||
_0,
|
||||
|
||||
_2 * (x * y * sq + z * sc),
|
||||
_1 - _2 * (xx + zz) * sq,
|
||||
_2 * (y * z * sq - x * sc),
|
||||
_0,
|
||||
|
||||
_2 * (x * z * sq - y * sc),
|
||||
_2 * (y * z * sq + x * sc),
|
||||
_1 - _2 * (xx + yy) * sq,
|
||||
_0,
|
||||
|
||||
_0,
|
||||
_0,
|
||||
_0,
|
||||
_1
|
||||
)
|
||||
}
|
||||
|
||||
/// Returns a transform with a rotation applied after self's transformation.
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn post_rotate(&self, x: T, y: T, z: T, theta: Radians<T>) -> Self {
|
||||
self.post_mul(&TypedTransform3D::create_rotation(x, y, z, theta))
|
||||
}
|
||||
|
||||
/// Returns a transform with a rotation applied before self's transformation.
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn pre_rotate(&self, x: T, y: T, z: T, theta: Radians<T>) -> Self {
|
||||
self.pre_mul(&TypedTransform3D::create_rotation(x, y, z, theta))
|
||||
}
|
||||
|
||||
/// Create a 2d skew transform.
|
||||
///
|
||||
/// See https://drafts.csswg.org/css-transforms/#funcdef-skew
|
||||
pub fn create_skew(alpha: Radians<T>, beta: Radians<T>) -> Self {
|
||||
let (_0, _1): (T, T) = (Zero::zero(), One::one());
|
||||
let (sx, sy) = (beta.get().tan(), alpha.get().tan());
|
||||
TypedTransform3D::row_major(
|
||||
_1, sx, _0, _0,
|
||||
sy, _1, _0, _0,
|
||||
_0, _0, _1, _0,
|
||||
_0, _0, _0, _1
|
||||
)
|
||||
}
|
||||
|
||||
/// Create a simple perspective projection transform
|
||||
pub fn create_perspective(d: T) -> Self {
|
||||
let (_0, _1): (T, T) = (Zero::zero(), One::one());
|
||||
TypedTransform3D::row_major(
|
||||
_1, _0, _0, _0,
|
||||
_0, _1, _0, _0,
|
||||
_0, _0, _1, -_1 / d,
|
||||
_0, _0, _0, _1
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy, Src, Dst> TypedTransform3D<T, Src, Dst> {
|
||||
/// Returns an array containing this transform's terms in row-major order (the order
|
||||
/// in which the transform is actually laid out in memory).
|
||||
pub fn to_row_major_array(&self) -> [T; 16] {
|
||||
[
|
||||
self.m11, self.m12, self.m13, self.m14,
|
||||
self.m21, self.m22, self.m23, self.m24,
|
||||
self.m31, self.m32, self.m33, self.m34,
|
||||
self.m41, self.m42, self.m43, self.m44
|
||||
]
|
||||
}
|
||||
|
||||
/// Returns an array containing this transform's terms in column-major order.
|
||||
pub fn to_column_major_array(&self) -> [T; 16] {
|
||||
[
|
||||
self.m11, self.m21, self.m31, self.m41,
|
||||
self.m12, self.m22, self.m32, self.m42,
|
||||
self.m13, self.m23, self.m33, self.m43,
|
||||
self.m14, self.m24, self.m34, self.m44
|
||||
]
|
||||
}
|
||||
|
||||
/// Returns an array containing this transform's 4 rows in (in row-major order)
|
||||
/// as arrays.
|
||||
///
|
||||
/// This is a convenience method to interface with other libraries like glium.
|
||||
pub fn to_row_arrays(&self) -> [[T; 4]; 4] {
|
||||
[
|
||||
[self.m11, self.m12, self.m13, self.m14],
|
||||
[self.m21, self.m22, self.m23, self.m24],
|
||||
[self.m31, self.m32, self.m33, self.m34],
|
||||
[self.m41, self.m42, self.m43, self.m44]
|
||||
]
|
||||
}
|
||||
|
||||
/// Returns an array containing this transform's 4 columns in (in row-major order,
|
||||
/// or 4 rows in column-major order) as arrays.
|
||||
///
|
||||
/// This is a convenience method to interface with other libraries like glium.
|
||||
pub fn to_column_arrays(&self) -> [[T; 4]; 4] {
|
||||
[
|
||||
[self.m11, self.m21, self.m31, self.m41],
|
||||
[self.m12, self.m22, self.m32, self.m42],
|
||||
[self.m13, self.m23, self.m33, self.m43],
|
||||
[self.m14, self.m24, self.m34, self.m44]
|
||||
]
|
||||
}
|
||||
|
||||
/// Creates a transform from an array of 16 elements in row-major order.
|
||||
pub fn from_array(array: [T; 16]) -> Self {
|
||||
Self::row_major(
|
||||
array[0], array[1], array[2], array[3],
|
||||
array[4], array[5], array[6], array[7],
|
||||
array[8], array[9], array[10], array[11],
|
||||
array[12], array[13], array[14], array[15],
|
||||
)
|
||||
}
|
||||
|
||||
/// Creates a transform from 4 rows of 4 elements (row-major order).
|
||||
pub fn from_row_arrays(array: [[T; 4]; 4]) -> Self {
|
||||
Self::row_major(
|
||||
array[0][0], array[0][1], array[0][2], array[0][3],
|
||||
array[1][0], array[1][1], array[1][2], array[1][3],
|
||||
array[2][0], array[2][1], array[2][2], array[2][3],
|
||||
array[3][0], array[3][1], array[3][2], array[3][3],
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T0: NumCast + Copy, Src, Dst> TypedTransform3D<T0, Src, Dst> {
|
||||
/// Cast from one numeric representation to another, preserving the units.
|
||||
pub fn cast<T1: NumCast + Copy>(&self) -> Option<TypedTransform3D<T1, Src, Dst>> {
|
||||
match (NumCast::from(self.m11), NumCast::from(self.m12),
|
||||
NumCast::from(self.m13), NumCast::from(self.m14),
|
||||
NumCast::from(self.m21), NumCast::from(self.m22),
|
||||
NumCast::from(self.m23), NumCast::from(self.m24),
|
||||
NumCast::from(self.m31), NumCast::from(self.m32),
|
||||
NumCast::from(self.m33), NumCast::from(self.m34),
|
||||
NumCast::from(self.m41), NumCast::from(self.m42),
|
||||
NumCast::from(self.m43), NumCast::from(self.m44)) {
|
||||
(Some(m11), Some(m12), Some(m13), Some(m14),
|
||||
Some(m21), Some(m22), Some(m23), Some(m24),
|
||||
Some(m31), Some(m32), Some(m33), Some(m34),
|
||||
Some(m41), Some(m42), Some(m43), Some(m44)) => {
|
||||
Some(TypedTransform3D::row_major(m11, m12, m13, m14,
|
||||
m21, m22, m23, m24,
|
||||
m31, m32, m33, m34,
|
||||
m41, m42, m43, m44))
|
||||
},
|
||||
_ => None
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, Src, Dst> fmt::Debug for TypedTransform3D<T, Src, Dst>
|
||||
where T: Copy + fmt::Debug +
|
||||
PartialEq +
|
||||
One + Zero {
|
||||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||
if self.is_identity() {
|
||||
write!(f, "[I]")
|
||||
} else {
|
||||
self.to_row_major_array().fmt(f)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use approxeq::ApproxEq;
|
||||
use transform2d::Transform2D;
|
||||
use point::{Point2D, Point3D};
|
||||
use Radians;
|
||||
use super::*;
|
||||
|
||||
use std::f32::consts::{FRAC_PI_2, PI};
|
||||
|
||||
type Mf32 = Transform3D<f32>;
|
||||
|
||||
// For convenience.
|
||||
fn rad(v: f32) -> Radians<f32> { Radians::new(v) }
|
||||
|
||||
#[test]
|
||||
pub fn test_translation() {
|
||||
let t1 = Mf32::create_translation(1.0, 2.0, 3.0);
|
||||
let t2 = Mf32::identity().pre_translate(vec3(1.0, 2.0, 3.0));
|
||||
let t3 = Mf32::identity().post_translate(vec3(1.0, 2.0, 3.0));
|
||||
assert_eq!(t1, t2);
|
||||
assert_eq!(t1, t3);
|
||||
|
||||
assert_eq!(t1.transform_point3d(&Point3D::new(1.0, 1.0, 1.0)), Point3D::new(2.0, 3.0, 4.0));
|
||||
assert_eq!(t1.transform_point2d(&Point2D::new(1.0, 1.0)), Point2D::new(2.0, 3.0));
|
||||
|
||||
assert_eq!(t1.post_mul(&t1), Mf32::create_translation(2.0, 4.0, 6.0));
|
||||
|
||||
assert!(!t1.is_2d());
|
||||
assert_eq!(Mf32::create_translation(1.0, 2.0, 3.0).to_2d(), Transform2D::create_translation(1.0, 2.0));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_rotation() {
|
||||
let r1 = Mf32::create_rotation(0.0, 0.0, 1.0, rad(FRAC_PI_2));
|
||||
let r2 = Mf32::identity().pre_rotate(0.0, 0.0, 1.0, rad(FRAC_PI_2));
|
||||
let r3 = Mf32::identity().post_rotate(0.0, 0.0, 1.0, rad(FRAC_PI_2));
|
||||
assert_eq!(r1, r2);
|
||||
assert_eq!(r1, r3);
|
||||
|
||||
assert!(r1.transform_point3d(&Point3D::new(1.0, 2.0, 3.0)).approx_eq(&Point3D::new(2.0, -1.0, 3.0)));
|
||||
assert!(r1.transform_point2d(&Point2D::new(1.0, 2.0)).approx_eq(&Point2D::new(2.0, -1.0)));
|
||||
|
||||
assert!(r1.post_mul(&r1).approx_eq(&Mf32::create_rotation(0.0, 0.0, 1.0, rad(FRAC_PI_2*2.0))));
|
||||
|
||||
assert!(r1.is_2d());
|
||||
assert!(r1.to_2d().approx_eq(&Transform2D::create_rotation(rad(FRAC_PI_2))));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_scale() {
|
||||
let s1 = Mf32::create_scale(2.0, 3.0, 4.0);
|
||||
let s2 = Mf32::identity().pre_scale(2.0, 3.0, 4.0);
|
||||
let s3 = Mf32::identity().post_scale(2.0, 3.0, 4.0);
|
||||
assert_eq!(s1, s2);
|
||||
assert_eq!(s1, s3);
|
||||
|
||||
assert!(s1.transform_point3d(&Point3D::new(2.0, 2.0, 2.0)).approx_eq(&Point3D::new(4.0, 6.0, 8.0)));
|
||||
assert!(s1.transform_point2d(&Point2D::new(2.0, 2.0)).approx_eq(&Point2D::new(4.0, 6.0)));
|
||||
|
||||
assert_eq!(s1.post_mul(&s1), Mf32::create_scale(4.0, 9.0, 16.0));
|
||||
|
||||
assert!(!s1.is_2d());
|
||||
assert_eq!(Mf32::create_scale(2.0, 3.0, 0.0).to_2d(), Transform2D::create_scale(2.0, 3.0));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_ortho() {
|
||||
let (left, right, bottom, top) = (0.0f32, 1.0f32, 0.1f32, 1.0f32);
|
||||
let (near, far) = (-1.0f32, 1.0f32);
|
||||
let result = Mf32::ortho(left, right, bottom, top, near, far);
|
||||
let expected = Mf32::row_major(
|
||||
2.0, 0.0, 0.0, 0.0,
|
||||
0.0, 2.22222222, 0.0, 0.0,
|
||||
0.0, 0.0, -1.0, 0.0,
|
||||
-1.0, -1.22222222, -0.0, 1.0
|
||||
);
|
||||
debug!("result={:?} expected={:?}", result, expected);
|
||||
assert!(result.approx_eq(&expected));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_is_2d() {
|
||||
assert!(Mf32::identity().is_2d());
|
||||
assert!(Mf32::create_rotation(0.0, 0.0, 1.0, rad(0.7854)).is_2d());
|
||||
assert!(!Mf32::create_rotation(0.0, 1.0, 0.0, rad(0.7854)).is_2d());
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_row_major_2d() {
|
||||
let m1 = Mf32::row_major_2d(1.0, 2.0, 3.0, 4.0, 5.0, 6.0);
|
||||
let m2 = Mf32::row_major(
|
||||
1.0, 2.0, 0.0, 0.0,
|
||||
3.0, 4.0, 0.0, 0.0,
|
||||
0.0, 0.0, 1.0, 0.0,
|
||||
5.0, 6.0, 0.0, 1.0
|
||||
);
|
||||
assert_eq!(m1, m2);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_column_major() {
|
||||
assert_eq!(
|
||||
Mf32::row_major(
|
||||
1.0, 2.0, 3.0, 4.0,
|
||||
5.0, 6.0, 7.0, 8.0,
|
||||
9.0, 10.0, 11.0, 12.0,
|
||||
13.0, 14.0, 15.0, 16.0,
|
||||
),
|
||||
Mf32::column_major(
|
||||
1.0, 5.0, 9.0, 13.0,
|
||||
2.0, 6.0, 10.0, 14.0,
|
||||
3.0, 7.0, 11.0, 15.0,
|
||||
4.0, 8.0, 12.0, 16.0,
|
||||
)
|
||||
);
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_inverse_simple() {
|
||||
let m1 = Mf32::identity();
|
||||
let m2 = m1.inverse().unwrap();
|
||||
assert!(m1.approx_eq(&m2));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_inverse_scale() {
|
||||
let m1 = Mf32::create_scale(1.5, 0.3, 2.1);
|
||||
let m2 = m1.inverse().unwrap();
|
||||
assert!(m1.pre_mul(&m2).approx_eq(&Mf32::identity()));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_inverse_translate() {
|
||||
let m1 = Mf32::create_translation(-132.0, 0.3, 493.0);
|
||||
let m2 = m1.inverse().unwrap();
|
||||
assert!(m1.pre_mul(&m2).approx_eq(&Mf32::identity()));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_inverse_rotate() {
|
||||
let m1 = Mf32::create_rotation(0.0, 1.0, 0.0, rad(1.57));
|
||||
let m2 = m1.inverse().unwrap();
|
||||
assert!(m1.pre_mul(&m2).approx_eq(&Mf32::identity()));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_inverse_transform_point_2d() {
|
||||
let m1 = Mf32::create_translation(100.0, 200.0, 0.0);
|
||||
let m2 = m1.inverse().unwrap();
|
||||
assert!(m1.pre_mul(&m2).approx_eq(&Mf32::identity()));
|
||||
|
||||
let p1 = Point2D::new(1000.0, 2000.0);
|
||||
let p2 = m1.transform_point2d(&p1);
|
||||
assert!(p2.eq(&Point2D::new(1100.0, 2200.0)));
|
||||
|
||||
let p3 = m2.transform_point2d(&p2);
|
||||
assert!(p3.eq(&p1));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_inverse_none() {
|
||||
assert!(Mf32::create_scale(2.0, 0.0, 2.0).inverse().is_none());
|
||||
assert!(Mf32::create_scale(2.0, 2.0, 2.0).inverse().is_some());
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_pre_post() {
|
||||
let m1 = Transform3D::identity().post_scale(1.0, 2.0, 3.0).post_translate(vec3(1.0, 2.0, 3.0));
|
||||
let m2 = Transform3D::identity().pre_translate(vec3(1.0, 2.0, 3.0)).pre_scale(1.0, 2.0, 3.0);
|
||||
assert!(m1.approx_eq(&m2));
|
||||
|
||||
let r = Mf32::create_rotation(0.0, 0.0, 1.0, rad(FRAC_PI_2));
|
||||
let t = Mf32::create_translation(2.0, 3.0, 0.0);
|
||||
|
||||
let a = Point3D::new(1.0, 1.0, 1.0);
|
||||
|
||||
assert!(r.post_mul(&t).transform_point3d(&a).approx_eq(&Point3D::new(3.0, 2.0, 1.0)));
|
||||
assert!(t.post_mul(&r).transform_point3d(&a).approx_eq(&Point3D::new(4.0, -3.0, 1.0)));
|
||||
assert!(t.post_mul(&r).transform_point3d(&a).approx_eq(&r.transform_point3d(&t.transform_point3d(&a))));
|
||||
|
||||
assert!(r.pre_mul(&t).transform_point3d(&a).approx_eq(&Point3D::new(4.0, -3.0, 1.0)));
|
||||
assert!(t.pre_mul(&r).transform_point3d(&a).approx_eq(&Point3D::new(3.0, 2.0, 1.0)));
|
||||
assert!(t.pre_mul(&r).transform_point3d(&a).approx_eq(&t.transform_point3d(&r.transform_point3d(&a))));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_size_of() {
|
||||
use std::mem::size_of;
|
||||
assert_eq!(size_of::<Transform3D<f32>>(), 16*size_of::<f32>());
|
||||
assert_eq!(size_of::<Transform3D<f64>>(), 16*size_of::<f64>());
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_transform_associativity() {
|
||||
let m1 = Mf32::row_major(3.0, 2.0, 1.5, 1.0,
|
||||
0.0, 4.5, -1.0, -4.0,
|
||||
0.0, 3.5, 2.5, 40.0,
|
||||
0.0, 3.0, 0.0, 1.0);
|
||||
let m2 = Mf32::row_major(1.0, -1.0, 3.0, 0.0,
|
||||
-1.0, 0.5, 0.0, 2.0,
|
||||
1.5, -2.0, 6.0, 0.0,
|
||||
-2.5, 6.0, 1.0, 1.0);
|
||||
|
||||
let p = Point3D::new(1.0, 3.0, 5.0);
|
||||
let p1 = m2.pre_mul(&m1).transform_point3d(&p);
|
||||
let p2 = m2.transform_point3d(&m1.transform_point3d(&p));
|
||||
assert!(p1.approx_eq(&p2));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_is_identity() {
|
||||
let m1 = Transform3D::identity();
|
||||
assert!(m1.is_identity());
|
||||
let m2 = m1.post_translate(vec3(0.1, 0.0, 0.0));
|
||||
assert!(!m2.is_identity());
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_transform_vector() {
|
||||
// Translation does not apply to vectors.
|
||||
let m = Mf32::create_translation(1.0, 2.0, 3.0);
|
||||
let v1 = vec3(10.0, -10.0, 3.0);
|
||||
assert_eq!(v1, m.transform_vector3d(&v1));
|
||||
// While it does apply to points.
|
||||
assert!(v1.to_point() != m.transform_point3d(&v1.to_point()));
|
||||
|
||||
// same thing with 2d vectors/points
|
||||
let v2 = vec2(10.0, -5.0);
|
||||
assert_eq!(v2, m.transform_vector2d(&v2));
|
||||
assert!(v2.to_point() != m.transform_point2d(&v2.to_point()));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_is_backface_visible() {
|
||||
// backface is not visible for rotate-x 0 degree.
|
||||
let r1 = Mf32::create_rotation(1.0, 0.0, 0.0, rad(0.0));
|
||||
assert!(!r1.is_backface_visible());
|
||||
// backface is not visible for rotate-x 45 degree.
|
||||
let r1 = Mf32::create_rotation(1.0, 0.0, 0.0, rad(PI * 0.25));
|
||||
assert!(!r1.is_backface_visible());
|
||||
// backface is visible for rotate-x 180 degree.
|
||||
let r1 = Mf32::create_rotation(1.0, 0.0, 0.0, rad(PI));
|
||||
assert!(r1.is_backface_visible());
|
||||
// backface is visible for rotate-x 225 degree.
|
||||
let r1 = Mf32::create_rotation(1.0, 0.0, 0.0, rad(PI * 1.25));
|
||||
assert!(r1.is_backface_visible());
|
||||
// backface is not visible for non-inverseable matrix
|
||||
let r1 = Mf32::create_scale(2.0, 0.0, 2.0);
|
||||
assert!(!r1.is_backface_visible());
|
||||
}
|
||||
}
|
32
third_party/rust/euclid-0.15.5/src/trig.rs
vendored
Normal file
32
third_party/rust/euclid-0.15.5/src/trig.rs
vendored
Normal file
@ -0,0 +1,32 @@
|
||||
// Copyright 2013 The Servo Project Developers. See the COPYRIGHT
|
||||
// file at the top-level directory of this distribution.
|
||||
//
|
||||
// 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.
|
||||
|
||||
|
||||
/// Trait for basic trigonometry functions, so they can be used on generic numeric types
|
||||
pub trait Trig {
|
||||
fn sin(self) -> Self;
|
||||
fn cos(self) -> Self;
|
||||
fn tan(self) -> Self;
|
||||
}
|
||||
|
||||
macro_rules! trig {
|
||||
($ty:ty) => (
|
||||
impl Trig for $ty {
|
||||
#[inline]
|
||||
fn sin(self) -> $ty { self.sin() }
|
||||
#[inline]
|
||||
fn cos(self) -> $ty { self.cos() }
|
||||
#[inline]
|
||||
fn tan(self) -> $ty { self.tan() }
|
||||
}
|
||||
)
|
||||
}
|
||||
|
||||
trig!(f32);
|
||||
trig!(f64);
|
949
third_party/rust/euclid-0.15.5/src/vector.rs
vendored
Normal file
949
third_party/rust/euclid-0.15.5/src/vector.rs
vendored
Normal file
@ -0,0 +1,949 @@
|
||||
// Copyright 2013 The Servo Project Developers. See the COPYRIGHT
|
||||
// file at the top-level directory of this distribution.
|
||||
//
|
||||
// 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.
|
||||
|
||||
use super::UnknownUnit;
|
||||
use approxeq::ApproxEq;
|
||||
use length::Length;
|
||||
use point::{TypedPoint2D, TypedPoint3D, point2, point3};
|
||||
use size::{TypedSize2D, size2};
|
||||
use scale_factor::ScaleFactor;
|
||||
use num::*;
|
||||
use num_traits::{Float, NumCast, Signed};
|
||||
use std::fmt;
|
||||
use std::ops::{Add, Neg, Mul, Sub, Div, AddAssign, SubAssign, MulAssign, DivAssign};
|
||||
use std::marker::PhantomData;
|
||||
|
||||
define_matrix! {
|
||||
/// A 2d Vector tagged with a unit.
|
||||
pub struct TypedVector2D<T, U> {
|
||||
pub x: T,
|
||||
pub y: T,
|
||||
}
|
||||
}
|
||||
|
||||
/// Default 2d vector type with no unit.
|
||||
///
|
||||
/// `Vector2D` provides the same methods as `TypedVector2D`.
|
||||
pub type Vector2D<T> = TypedVector2D<T, UnknownUnit>;
|
||||
|
||||
impl<T: Copy + Zero, U> TypedVector2D<T, U> {
|
||||
/// Constructor, setting all components to zero.
|
||||
#[inline]
|
||||
pub fn zero() -> Self {
|
||||
TypedVector2D::new(Zero::zero(), Zero::zero())
|
||||
}
|
||||
|
||||
/// Convert into a 3d vector.
|
||||
#[inline]
|
||||
pub fn to_3d(&self) -> TypedVector3D<T, U> {
|
||||
vec3(self.x, self.y, Zero::zero())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: fmt::Debug, U> fmt::Debug for TypedVector2D<T, U> {
|
||||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||
write!(f, "({:?},{:?})", self.x, self.y)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: fmt::Display, U> fmt::Display for TypedVector2D<T, U> {
|
||||
fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
|
||||
write!(formatter, "({},{})", self.x, self.y)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, U> TypedVector2D<T, U> {
|
||||
/// Constructor taking scalar values directly.
|
||||
#[inline]
|
||||
pub fn new(x: T, y: T) -> Self {
|
||||
TypedVector2D { x: x, y: y, _unit: PhantomData }
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy, U> TypedVector2D<T, U> {
|
||||
/// Constructor taking properly typed Lengths instead of scalar values.
|
||||
#[inline]
|
||||
pub fn from_lengths(x: Length<T, U>, y: Length<T, U>) -> Self {
|
||||
vec2(x.0, y.0)
|
||||
}
|
||||
|
||||
/// Create a 3d vector from this one, using the specified z value.
|
||||
#[inline]
|
||||
pub fn extend(&self, z: T) -> TypedVector3D<T, U> {
|
||||
vec3(self.x, self.y, z)
|
||||
}
|
||||
|
||||
/// Cast this vector into a point.
|
||||
///
|
||||
/// Equivalent to adding this vector to the origin.
|
||||
#[inline]
|
||||
pub fn to_point(&self) -> TypedPoint2D<T, U> {
|
||||
point2(self.x, self.y)
|
||||
}
|
||||
|
||||
/// Swap x and y.
|
||||
#[inline]
|
||||
pub fn yx(&self) -> Self {
|
||||
vec2(self.y, self.x)
|
||||
}
|
||||
|
||||
/// Cast this vector into a size.
|
||||
#[inline]
|
||||
pub fn to_size(&self) -> TypedSize2D<T, U> {
|
||||
size2(self.x, self.y)
|
||||
}
|
||||
|
||||
|
||||
/// Returns self.x as a Length carrying the unit.
|
||||
#[inline]
|
||||
pub fn x_typed(&self) -> Length<T, U> { Length::new(self.x) }
|
||||
|
||||
/// Returns self.y as a Length carrying the unit.
|
||||
#[inline]
|
||||
pub fn y_typed(&self) -> Length<T, U> { Length::new(self.y) }
|
||||
|
||||
/// Drop the units, preserving only the numeric value.
|
||||
#[inline]
|
||||
pub fn to_untyped(&self) -> Vector2D<T> {
|
||||
vec2(self.x, self.y)
|
||||
}
|
||||
|
||||
/// Tag a unitless value with units.
|
||||
#[inline]
|
||||
pub fn from_untyped(p: &Vector2D<T>) -> Self {
|
||||
vec2(p.x, p.y)
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn to_array(&self) -> [T; 2] {
|
||||
[self.x, self.y]
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, U> TypedVector2D<T, U>
|
||||
where T: Copy + Mul<T, Output=T> + Add<T, Output=T> + Sub<T, Output=T> {
|
||||
/// Dot product.
|
||||
#[inline]
|
||||
pub fn dot(self, other: Self) -> T {
|
||||
self.x * other.x + self.y * other.y
|
||||
}
|
||||
|
||||
/// Returns the norm of the cross product [self.x, self.y, 0] x [other.x, other.y, 0]..
|
||||
#[inline]
|
||||
pub fn cross(self, other: Self) -> T {
|
||||
self.x * other.y - self.y * other.x
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn normalize(self) -> Self where T: Float + ApproxEq<T> {
|
||||
let dot = self.dot(self);
|
||||
if dot.approx_eq(&T::zero()) {
|
||||
self
|
||||
} else {
|
||||
self / dot.sqrt()
|
||||
}
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn square_length(&self) -> T {
|
||||
self.x * self.x + self.y * self.y
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn length(&self) -> T where T: Float + ApproxEq<T> {
|
||||
self.square_length().sqrt()
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, U> TypedVector2D<T, U>
|
||||
where T: Copy + One + Add<Output=T> + Sub<Output=T> + Mul<Output=T> {
|
||||
/// Linearly interpolate between this vector and another vector.
|
||||
///
|
||||
/// `t` is expected to be between zero and one.
|
||||
#[inline]
|
||||
pub fn lerp(&self, other: Self, t: T) -> Self {
|
||||
let one_t = T::one() - t;
|
||||
(*self) * one_t + other * t
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Add<T, Output=T>, U> Add for TypedVector2D<T, U> {
|
||||
type Output = Self;
|
||||
fn add(self, other: Self) -> Self {
|
||||
TypedVector2D::new(self.x + other.x, self.y + other.y)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Add<T, Output=T>, U> AddAssign for TypedVector2D<T, U> {
|
||||
#[inline]
|
||||
fn add_assign(&mut self, other: Self) {
|
||||
*self = *self + other
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Sub<T, Output=T>, U> SubAssign<TypedVector2D<T, U>> for TypedVector2D<T, U> {
|
||||
#[inline]
|
||||
fn sub_assign(&mut self, other: Self) {
|
||||
*self = *self - other
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Sub<T, Output=T>, U> Sub for TypedVector2D<T, U> {
|
||||
type Output = Self;
|
||||
#[inline]
|
||||
fn sub(self, other: Self) -> Self {
|
||||
vec2(self.x - other.x, self.y - other.y)
|
||||
}
|
||||
}
|
||||
|
||||
impl <T: Copy + Neg<Output=T>, U> Neg for TypedVector2D<T, U> {
|
||||
type Output = Self;
|
||||
#[inline]
|
||||
fn neg(self) -> Self {
|
||||
vec2(-self.x, -self.y)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Float, U> TypedVector2D<T, U> {
|
||||
#[inline]
|
||||
pub fn min(self, other: Self) -> Self {
|
||||
vec2(self.x.min(other.x), self.y.min(other.y))
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn max(self, other: Self) -> Self {
|
||||
vec2(self.x.max(other.x), self.y.max(other.y))
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Mul<T, Output=T>, U> Mul<T> for TypedVector2D<T, U> {
|
||||
type Output = Self;
|
||||
#[inline]
|
||||
fn mul(self, scale: T) -> Self {
|
||||
vec2(self.x * scale, self.y * scale)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Div<T, Output=T>, U> Div<T> for TypedVector2D<T, U> {
|
||||
type Output = Self;
|
||||
#[inline]
|
||||
fn div(self, scale: T) -> Self {
|
||||
vec2(self.x / scale, self.y / scale)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Mul<T, Output=T>, U> MulAssign<T> for TypedVector2D<T, U> {
|
||||
#[inline]
|
||||
fn mul_assign(&mut self, scale: T) {
|
||||
*self = *self * scale
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Div<T, Output=T>, U> DivAssign<T> for TypedVector2D<T, U> {
|
||||
#[inline]
|
||||
fn div_assign(&mut self, scale: T) {
|
||||
*self = *self / scale
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Mul<T, Output=T>, U1, U2> Mul<ScaleFactor<T, U1, U2>> for TypedVector2D<T, U1> {
|
||||
type Output = TypedVector2D<T, U2>;
|
||||
#[inline]
|
||||
fn mul(self, scale: ScaleFactor<T, U1, U2>) -> TypedVector2D<T, U2> {
|
||||
vec2(self.x * scale.get(), self.y * scale.get())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Div<T, Output=T>, U1, U2> Div<ScaleFactor<T, U1, U2>> for TypedVector2D<T, U2> {
|
||||
type Output = TypedVector2D<T, U1>;
|
||||
#[inline]
|
||||
fn div(self, scale: ScaleFactor<T, U1, U2>) -> TypedVector2D<T, U1> {
|
||||
vec2(self.x / scale.get(), self.y / scale.get())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Round, U> TypedVector2D<T, U> {
|
||||
/// Rounds each component to the nearest integer value.
|
||||
///
|
||||
/// This behavior is preserved for negative values (unlike the basic cast).
|
||||
/// For example `{ -0.1, -0.8 }.round() == { 0.0, -1.0 }`.
|
||||
#[inline]
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn round(&self) -> Self {
|
||||
vec2(self.x.round(), self.y.round())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Ceil, U> TypedVector2D<T, U> {
|
||||
/// Rounds each component to the smallest integer equal or greater than the original value.
|
||||
///
|
||||
/// This behavior is preserved for negative values (unlike the basic cast).
|
||||
/// For example `{ -0.1, -0.8 }.ceil() == { 0.0, 0.0 }`.
|
||||
#[inline]
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn ceil(&self) -> Self {
|
||||
vec2(self.x.ceil(), self.y.ceil())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Floor, U> TypedVector2D<T, U> {
|
||||
/// Rounds each component to the biggest integer equal or lower than the original value.
|
||||
///
|
||||
/// This behavior is preserved for negative values (unlike the basic cast).
|
||||
/// For example `{ -0.1, -0.8 }.floor() == { -1.0, -1.0 }`.
|
||||
#[inline]
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn floor(&self) -> Self {
|
||||
vec2(self.x.floor(), self.y.floor())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: NumCast + Copy, U> TypedVector2D<T, U> {
|
||||
/// Cast from one numeric representation to another, preserving the units.
|
||||
///
|
||||
/// When casting from floating vector to integer coordinates, the decimals are truncated
|
||||
/// as one would expect from a simple cast, but this behavior does not always make sense
|
||||
/// geometrically. Consider using `round()`, `ceil()` or `floor()` before casting.
|
||||
#[inline]
|
||||
pub fn cast<NewT: NumCast + Copy>(&self) -> Option<TypedVector2D<NewT, U>> {
|
||||
match (NumCast::from(self.x), NumCast::from(self.y)) {
|
||||
(Some(x), Some(y)) => Some(TypedVector2D::new(x, y)),
|
||||
_ => None
|
||||
}
|
||||
}
|
||||
|
||||
// Convenience functions for common casts
|
||||
|
||||
/// Cast into an `f32` vector.
|
||||
#[inline]
|
||||
pub fn to_f32(&self) -> TypedVector2D<f32, U> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
|
||||
/// Cast into an `usize` vector, truncating decimals if any.
|
||||
///
|
||||
/// When casting from floating vector vectors, it is worth considering whether
|
||||
/// to `round()`, `ceil()` or `floor()` before the cast in order to obtain
|
||||
/// the desired conversion behavior.
|
||||
#[inline]
|
||||
pub fn to_usize(&self) -> TypedVector2D<usize, U> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
|
||||
/// Cast into an i32 vector, truncating decimals if any.
|
||||
///
|
||||
/// When casting from floating vector vectors, it is worth considering whether
|
||||
/// to `round()`, `ceil()` or `floor()` before the cast in order to obtain
|
||||
/// the desired conversion behavior.
|
||||
#[inline]
|
||||
pub fn to_i32(&self) -> TypedVector2D<i32, U> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
|
||||
/// Cast into an i64 vector, truncating decimals if any.
|
||||
///
|
||||
/// When casting from floating vector vectors, it is worth considering whether
|
||||
/// to `round()`, `ceil()` or `floor()` before the cast in order to obtain
|
||||
/// the desired conversion behavior.
|
||||
#[inline]
|
||||
pub fn to_i64(&self) -> TypedVector2D<i64, U> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy+ApproxEq<T>, U> ApproxEq<TypedVector2D<T, U>> for TypedVector2D<T, U> {
|
||||
#[inline]
|
||||
fn approx_epsilon() -> Self {
|
||||
vec2(T::approx_epsilon(), T::approx_epsilon())
|
||||
}
|
||||
|
||||
#[inline]
|
||||
fn approx_eq(&self, other: &Self) -> bool {
|
||||
self.x.approx_eq(&other.x) && self.y.approx_eq(&other.y)
|
||||
}
|
||||
|
||||
#[inline]
|
||||
fn approx_eq_eps(&self, other: &Self, eps: &Self) -> bool {
|
||||
self.x.approx_eq_eps(&other.x, &eps.x) && self.y.approx_eq_eps(&other.y, &eps.y)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy, U> Into<[T; 2]> for TypedVector2D<T, U> {
|
||||
fn into(self) -> [T; 2] {
|
||||
self.to_array()
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy, U> From<[T; 2]> for TypedVector2D<T, U> {
|
||||
fn from(array: [T; 2]) -> Self {
|
||||
vec2(array[0], array[1])
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, U> TypedVector2D<T, U>
|
||||
where T: Signed {
|
||||
pub fn abs(&self) -> Self {
|
||||
vec2(self.x.abs(), self.y.abs())
|
||||
}
|
||||
}
|
||||
|
||||
define_matrix! {
|
||||
/// A 3d Vector tagged with a unit.
|
||||
pub struct TypedVector3D<T, U> {
|
||||
pub x: T,
|
||||
pub y: T,
|
||||
pub z: T,
|
||||
}
|
||||
}
|
||||
|
||||
/// Default 3d vector type with no unit.
|
||||
///
|
||||
/// `Vector3D` provides the same methods as `TypedVector3D`.
|
||||
pub type Vector3D<T> = TypedVector3D<T, UnknownUnit>;
|
||||
|
||||
impl<T: Copy + Zero, U> TypedVector3D<T, U> {
|
||||
/// Constructor, setting all copmonents to zero.
|
||||
#[inline]
|
||||
pub fn zero() -> Self {
|
||||
vec3(Zero::zero(), Zero::zero(), Zero::zero())
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn to_array_4d(&self) -> [T; 4] {
|
||||
[self.x, self.y, self.z, Zero::zero()]
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: fmt::Debug, U> fmt::Debug for TypedVector3D<T, U> {
|
||||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||
write!(f, "({:?},{:?},{:?})", self.x, self.y, self.z)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: fmt::Display, U> fmt::Display for TypedVector3D<T, U> {
|
||||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||
write!(f, "({},{},{})", self.x, self.y, self.z)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, U> TypedVector3D<T, U> {
|
||||
/// Constructor taking scalar values directly.
|
||||
#[inline]
|
||||
pub fn new(x: T, y: T, z: T) -> Self {
|
||||
TypedVector3D { x: x, y: y, z: z, _unit: PhantomData }
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy, U> TypedVector3D<T, U> {
|
||||
/// Constructor taking properly typed Lengths instead of scalar values.
|
||||
#[inline]
|
||||
pub fn from_lengths(x: Length<T, U>, y: Length<T, U>, z: Length<T, U>) -> TypedVector3D<T, U> {
|
||||
vec3(x.0, y.0, z.0)
|
||||
}
|
||||
|
||||
/// Cast this vector into a point.
|
||||
///
|
||||
/// Equivalent to adding this vector to the origin.
|
||||
#[inline]
|
||||
pub fn to_point(&self) -> TypedPoint3D<T, U> {
|
||||
point3(self.x, self.y, self.z)
|
||||
}
|
||||
|
||||
/// Returns a 2d vector using this vector's x and y coordinates
|
||||
#[inline]
|
||||
pub fn xy(&self) -> TypedVector2D<T, U> {
|
||||
vec2(self.x, self.y)
|
||||
}
|
||||
|
||||
/// Returns a 2d vector using this vector's x and z coordinates
|
||||
#[inline]
|
||||
pub fn xz(&self) -> TypedVector2D<T, U> {
|
||||
vec2(self.x, self.z)
|
||||
}
|
||||
|
||||
/// Returns a 2d vector using this vector's x and z coordinates
|
||||
#[inline]
|
||||
pub fn yz(&self) -> TypedVector2D<T, U> {
|
||||
vec2(self.y, self.z)
|
||||
}
|
||||
|
||||
/// Returns self.x as a Length carrying the unit.
|
||||
#[inline]
|
||||
pub fn x_typed(&self) -> Length<T, U> { Length::new(self.x) }
|
||||
|
||||
/// Returns self.y as a Length carrying the unit.
|
||||
#[inline]
|
||||
pub fn y_typed(&self) -> Length<T, U> { Length::new(self.y) }
|
||||
|
||||
/// Returns self.z as a Length carrying the unit.
|
||||
#[inline]
|
||||
pub fn z_typed(&self) -> Length<T, U> { Length::new(self.z) }
|
||||
|
||||
#[inline]
|
||||
pub fn to_array(&self) -> [T; 3] { [self.x, self.y, self.z] }
|
||||
|
||||
/// Drop the units, preserving only the numeric value.
|
||||
#[inline]
|
||||
pub fn to_untyped(&self) -> Vector3D<T> {
|
||||
vec3(self.x, self.y, self.z)
|
||||
}
|
||||
|
||||
/// Tag a unitless value with units.
|
||||
#[inline]
|
||||
pub fn from_untyped(p: &Vector3D<T>) -> Self {
|
||||
vec3(p.x, p.y, p.z)
|
||||
}
|
||||
|
||||
/// Convert into a 2d vector.
|
||||
#[inline]
|
||||
pub fn to_2d(&self) -> TypedVector2D<T, U> {
|
||||
self.xy()
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Mul<T, Output=T> +
|
||||
Add<T, Output=T> +
|
||||
Sub<T, Output=T> +
|
||||
Copy, U> TypedVector3D<T, U> {
|
||||
|
||||
// Dot product.
|
||||
#[inline]
|
||||
pub fn dot(self, other: Self) -> T {
|
||||
self.x * other.x +
|
||||
self.y * other.y +
|
||||
self.z * other.z
|
||||
}
|
||||
|
||||
// Cross product.
|
||||
#[inline]
|
||||
pub fn cross(self, other: Self) -> Self {
|
||||
vec3(
|
||||
self.y * other.z - self.z * other.y,
|
||||
self.z * other.x - self.x * other.z,
|
||||
self.x * other.y - self.y * other.x
|
||||
)
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn normalize(self) -> Self where T: Float + ApproxEq<T> {
|
||||
let dot = self.dot(self);
|
||||
if dot.approx_eq(&T::zero()) {
|
||||
self
|
||||
} else {
|
||||
self / dot.sqrt()
|
||||
}
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn square_length(&self) -> T {
|
||||
self.x * self.x + self.y * self.y + self.z * self.z
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn length(&self) -> T where T: Float + ApproxEq<T> {
|
||||
self.square_length().sqrt()
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, U> TypedVector3D<T, U>
|
||||
where T: Copy + One + Add<Output=T> + Sub<Output=T> + Mul<Output=T> {
|
||||
/// Linearly interpolate between this vector and another vector.
|
||||
///
|
||||
/// `t` is expected to be between zero and one.
|
||||
#[inline]
|
||||
pub fn lerp(&self, other: Self, t: T) -> Self {
|
||||
let one_t = T::one() - t;
|
||||
(*self) * one_t + other * t
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Add<T, Output=T>, U> Add for TypedVector3D<T, U> {
|
||||
type Output = Self;
|
||||
#[inline]
|
||||
fn add(self, other: Self) -> Self {
|
||||
vec3(self.x + other.x, self.y + other.y, self.z + other.z)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Sub<T, Output=T>, U> Sub for TypedVector3D<T, U> {
|
||||
type Output = Self;
|
||||
#[inline]
|
||||
fn sub(self, other: Self) -> Self {
|
||||
vec3(self.x - other.x, self.y - other.y, self.z - other.z)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Add<T, Output=T>, U> AddAssign for TypedVector3D<T, U> {
|
||||
#[inline]
|
||||
fn add_assign(&mut self, other: Self) {
|
||||
*self = *self + other
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Sub<T, Output=T>, U> SubAssign<TypedVector3D<T, U>> for TypedVector3D<T, U> {
|
||||
#[inline]
|
||||
fn sub_assign(&mut self, other: Self) {
|
||||
*self = *self - other
|
||||
}
|
||||
}
|
||||
|
||||
impl <T: Copy + Neg<Output=T>, U> Neg for TypedVector3D<T, U> {
|
||||
type Output = Self;
|
||||
#[inline]
|
||||
fn neg(self) -> Self {
|
||||
vec3(-self.x, -self.y, -self.z)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Mul<T, Output=T>, U> Mul<T> for TypedVector3D<T, U> {
|
||||
type Output = Self;
|
||||
#[inline]
|
||||
fn mul(self, scale: T) -> Self {
|
||||
Self::new(self.x * scale, self.y * scale, self.z * scale)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Div<T, Output=T>, U> Div<T> for TypedVector3D<T, U> {
|
||||
type Output = Self;
|
||||
#[inline]
|
||||
fn div(self, scale: T) -> Self {
|
||||
Self::new(self.x / scale, self.y / scale, self.z / scale)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Mul<T, Output=T>, U> MulAssign<T> for TypedVector3D<T, U> {
|
||||
#[inline]
|
||||
fn mul_assign(&mut self, scale: T) {
|
||||
*self = *self * scale
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Div<T, Output=T>, U> DivAssign<T> for TypedVector3D<T, U> {
|
||||
#[inline]
|
||||
fn div_assign(&mut self, scale: T) {
|
||||
*self = *self / scale
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Float, U> TypedVector3D<T, U> {
|
||||
#[inline]
|
||||
pub fn min(self, other: Self) -> Self {
|
||||
vec3(self.x.min(other.x), self.y.min(other.y), self.z.min(other.z))
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn max(self, other: Self) -> Self {
|
||||
vec3(self.x.max(other.x), self.y.max(other.y), self.z.max(other.z))
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Round, U> TypedVector3D<T, U> {
|
||||
/// Rounds each component to the nearest integer value.
|
||||
///
|
||||
/// This behavior is preserved for negative values (unlike the basic cast).
|
||||
#[inline]
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn round(&self) -> Self {
|
||||
vec3(self.x.round(), self.y.round(), self.z.round())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Ceil, U> TypedVector3D<T, U> {
|
||||
/// Rounds each component to the smallest integer equal or greater than the original value.
|
||||
///
|
||||
/// This behavior is preserved for negative values (unlike the basic cast).
|
||||
#[inline]
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn ceil(&self) -> Self {
|
||||
vec3(self.x.ceil(), self.y.ceil(), self.z.ceil())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Floor, U> TypedVector3D<T, U> {
|
||||
/// Rounds each component to the biggest integer equal or lower than the original value.
|
||||
///
|
||||
/// This behavior is preserved for negative values (unlike the basic cast).
|
||||
#[inline]
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn floor(&self) -> Self {
|
||||
vec3(self.x.floor(), self.y.floor(), self.z.floor())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: NumCast + Copy, U> TypedVector3D<T, U> {
|
||||
/// Cast from one numeric representation to another, preserving the units.
|
||||
///
|
||||
/// When casting from floating vector to integer coordinates, the decimals are truncated
|
||||
/// as one would expect from a simple cast, but this behavior does not always make sense
|
||||
/// geometrically. Consider using round(), ceil or floor() before casting.
|
||||
#[inline]
|
||||
pub fn cast<NewT: NumCast + Copy>(&self) -> Option<TypedVector3D<NewT, U>> {
|
||||
match (NumCast::from(self.x),
|
||||
NumCast::from(self.y),
|
||||
NumCast::from(self.z)) {
|
||||
(Some(x), Some(y), Some(z)) => Some(vec3(x, y, z)),
|
||||
_ => None
|
||||
}
|
||||
}
|
||||
|
||||
// Convenience functions for common casts
|
||||
|
||||
/// Cast into an `f32` vector.
|
||||
#[inline]
|
||||
pub fn to_f32(&self) -> TypedVector3D<f32, U> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
|
||||
/// Cast into an `usize` vector, truncating decimals if any.
|
||||
///
|
||||
/// When casting from floating vector vectors, it is worth considering whether
|
||||
/// to `round()`, `ceil()` or `floor()` before the cast in order to obtain
|
||||
/// the desired conversion behavior.
|
||||
#[inline]
|
||||
pub fn to_usize(&self) -> TypedVector3D<usize, U> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
|
||||
/// Cast into an `i32` vector, truncating decimals if any.
|
||||
///
|
||||
/// When casting from floating vector vectors, it is worth considering whether
|
||||
/// to `round()`, `ceil()` or `floor()` before the cast in order to obtain
|
||||
/// the desired conversion behavior.
|
||||
#[inline]
|
||||
pub fn to_i32(&self) -> TypedVector3D<i32, U> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
|
||||
/// Cast into an `i64` vector, truncating decimals if any.
|
||||
///
|
||||
/// When casting from floating vector vectors, it is worth considering whether
|
||||
/// to `round()`, `ceil()` or `floor()` before the cast in order to obtain
|
||||
/// the desired conversion behavior.
|
||||
#[inline]
|
||||
pub fn to_i64(&self) -> TypedVector3D<i64, U> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy+ApproxEq<T>, U> ApproxEq<TypedVector3D<T, U>> for TypedVector3D<T, U> {
|
||||
#[inline]
|
||||
fn approx_epsilon() -> Self {
|
||||
vec3(T::approx_epsilon(), T::approx_epsilon(), T::approx_epsilon())
|
||||
}
|
||||
|
||||
#[inline]
|
||||
fn approx_eq(&self, other: &Self) -> bool {
|
||||
self.x.approx_eq(&other.x)
|
||||
&& self.y.approx_eq(&other.y)
|
||||
&& self.z.approx_eq(&other.z)
|
||||
}
|
||||
|
||||
#[inline]
|
||||
fn approx_eq_eps(&self, other: &Self, eps: &Self) -> bool {
|
||||
self.x.approx_eq_eps(&other.x, &eps.x)
|
||||
&& self.y.approx_eq_eps(&other.y, &eps.y)
|
||||
&& self.z.approx_eq_eps(&other.z, &eps.z)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy, U> Into<[T; 3]> for TypedVector3D<T, U> {
|
||||
fn into(self) -> [T; 3] {
|
||||
self.to_array()
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy, U> From<[T; 3]> for TypedVector3D<T, U> {
|
||||
fn from(array: [T; 3]) -> Self {
|
||||
vec3(array[0], array[1], array[2])
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, U> TypedVector3D<T, U>
|
||||
where T: Signed {
|
||||
pub fn abs(&self) -> Self {
|
||||
vec3(self.x.abs(), self.y.abs(), self.z.abs())
|
||||
}
|
||||
}
|
||||
|
||||
/// Convenience constructor.
|
||||
#[inline]
|
||||
pub fn vec2<T, U>(x: T, y: T) -> TypedVector2D<T, U> {
|
||||
TypedVector2D::new(x, y)
|
||||
}
|
||||
|
||||
/// Convenience constructor.
|
||||
#[inline]
|
||||
pub fn vec3<T, U>(x: T, y: T, z: T) -> TypedVector3D<T, U> {
|
||||
TypedVector3D::new(x, y, z)
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod vector2d {
|
||||
use super::{Vector2D, vec2};
|
||||
type Vec2 = Vector2D<f32>;
|
||||
|
||||
#[test]
|
||||
pub fn test_scalar_mul() {
|
||||
let p1: Vec2 = vec2(3.0, 5.0);
|
||||
|
||||
let result = p1 * 5.0;
|
||||
|
||||
assert_eq!(result, Vector2D::new(15.0, 25.0));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_dot() {
|
||||
let p1: Vec2 = vec2(2.0, 7.0);
|
||||
let p2: Vec2 = vec2(13.0, 11.0);
|
||||
assert_eq!(p1.dot(p2), 103.0);
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_cross() {
|
||||
let p1: Vec2 = vec2(4.0, 7.0);
|
||||
let p2: Vec2 = vec2(13.0, 8.0);
|
||||
let r = p1.cross(p2);
|
||||
assert_eq!(r, -59.0);
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_normalize() {
|
||||
let p0: Vec2 = Vec2::zero();
|
||||
let p1: Vec2 = vec2(4.0, 0.0);
|
||||
let p2: Vec2 = vec2(3.0, -4.0);
|
||||
assert_eq!(p0.normalize(), p0);
|
||||
assert_eq!(p1.normalize(), vec2(1.0, 0.0));
|
||||
assert_eq!(p2.normalize(), vec2(0.6, -0.8));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_min() {
|
||||
let p1: Vec2 = vec2(1.0, 3.0);
|
||||
let p2: Vec2 = vec2(2.0, 2.0);
|
||||
|
||||
let result = p1.min(p2);
|
||||
|
||||
assert_eq!(result, vec2(1.0, 2.0));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_max() {
|
||||
let p1: Vec2 = vec2(1.0, 3.0);
|
||||
let p2: Vec2 = vec2(2.0, 2.0);
|
||||
|
||||
let result = p1.max(p2);
|
||||
|
||||
assert_eq!(result, vec2(2.0, 3.0));
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod typedvector2d {
|
||||
use super::{TypedVector2D, Vector2D, vec2};
|
||||
use scale_factor::ScaleFactor;
|
||||
|
||||
pub enum Mm {}
|
||||
pub enum Cm {}
|
||||
|
||||
pub type Vector2DMm<T> = TypedVector2D<T, Mm>;
|
||||
pub type Vector2DCm<T> = TypedVector2D<T, Cm>;
|
||||
|
||||
#[test]
|
||||
pub fn test_add() {
|
||||
let p1 = Vector2DMm::new(1.0, 2.0);
|
||||
let p2 = Vector2DMm::new(3.0, 4.0);
|
||||
|
||||
let result = p1 + p2;
|
||||
|
||||
assert_eq!(result, vec2(4.0, 6.0));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_add_assign() {
|
||||
let mut p1 = Vector2DMm::new(1.0, 2.0);
|
||||
p1 += vec2(3.0, 4.0);
|
||||
|
||||
assert_eq!(p1, vec2(4.0, 6.0));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_scalar_mul() {
|
||||
let p1 = Vector2DMm::new(1.0, 2.0);
|
||||
let cm_per_mm: ScaleFactor<f32, Mm, Cm> = ScaleFactor::new(0.1);
|
||||
|
||||
let result: Vector2DCm<f32> = p1 * cm_per_mm;
|
||||
|
||||
assert_eq!(result, vec2(0.1, 0.2));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_swizzling() {
|
||||
let p: Vector2D<i32> = vec2(1, 2);
|
||||
assert_eq!(p.yx(), vec2(2, 1));
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod vector3d {
|
||||
use super::{Vector3D, vec2, vec3};
|
||||
type Vec3 = Vector3D<f32>;
|
||||
|
||||
#[test]
|
||||
pub fn test_dot() {
|
||||
let p1: Vec3 = vec3(7.0, 21.0, 32.0);
|
||||
let p2: Vec3 = vec3(43.0, 5.0, 16.0);
|
||||
assert_eq!(p1.dot(p2), 918.0);
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_cross() {
|
||||
let p1: Vec3 = vec3(4.0, 7.0, 9.0);
|
||||
let p2: Vec3 = vec3(13.0, 8.0, 3.0);
|
||||
let p3 = p1.cross(p2);
|
||||
assert_eq!(p3, vec3(-51.0, 105.0, -59.0));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_normalize() {
|
||||
let p0: Vec3 = Vec3::zero();
|
||||
let p1: Vec3 = vec3(0.0, -6.0, 0.0);
|
||||
let p2: Vec3 = vec3(1.0, 2.0, -2.0);
|
||||
assert_eq!(p0.normalize(), p0);
|
||||
assert_eq!(p1.normalize(), vec3(0.0, -1.0, 0.0));
|
||||
assert_eq!(p2.normalize(), vec3(1.0/3.0, 2.0/3.0, -2.0/3.0));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_min() {
|
||||
let p1: Vec3 = vec3(1.0, 3.0, 5.0);
|
||||
let p2: Vec3 = vec3(2.0, 2.0, -1.0);
|
||||
|
||||
let result = p1.min(p2);
|
||||
|
||||
assert_eq!(result, vec3(1.0, 2.0, -1.0));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_max() {
|
||||
let p1: Vec3 = vec3(1.0, 3.0, 5.0);
|
||||
let p2: Vec3 = vec3(2.0, 2.0, -1.0);
|
||||
|
||||
let result = p1.max(p2);
|
||||
|
||||
assert_eq!(result, vec3(2.0, 3.0, 5.0));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_swizzling() {
|
||||
let p: Vector3D<i32> = vec3(1, 2, 3);
|
||||
assert_eq!(p.xy(), vec2(1, 2));
|
||||
assert_eq!(p.xz(), vec2(1, 3));
|
||||
assert_eq!(p.yz(), vec2(2, 3));
|
||||
}
|
||||
}
|
2
third_party/rust/euclid/.cargo-checksum.json
vendored
2
third_party/rust/euclid/.cargo-checksum.json
vendored
@ -1 +1 @@
|
||||
{"files":{".travis.yml":"13574ca06216b94913348afb2beae9db9929f8964fbc45b3c00344ee281e1f52","COPYRIGHT":"ec82b96487e9e778ee610c7ab245162464782cfa1f555c2299333f8dbe5c036a","Cargo.toml":"1951103509b9ee4036df52e5f11c9d1e2ba18c09eab673de25c37ad1f6dabab4","LICENSE-APACHE":"a60eea817514531668d7e00765731449fe14d059d3249e0bc93b36de45f759f2","LICENSE-MIT":"62065228e42caebca7e7d7db1204cbb867033de5982ca4009928915e4095f3a3","README.md":"625bec69c76ce5423fdd05cfe46922b2680ec517f97c5854ce34798d1d8a9541","src/approxeq.rs":"6cf810ad389c73a27141a7a67454ed12d4b01c3c16605b9a7414b389bc0615dd","src/length.rs":"73b0aed12a0c9acfd77a6b9ac0cd3a7ec522c41ffafad4448753cb6bba47b6a4","src/lib.rs":"43b594eebf1cd2c8fb7a7f4616d872d9e09f5e0c7c0172a16d4e5841ab552328","src/macros.rs":"a3f4deaa4323da6398546720548dda20b0b39427603ccc35ab49d220a83467a8","src/num.rs":"749b201289fc6663199160a2f9204e17925fd3053f8ab7779e7bfb377ad06227","src/point.rs":"859e3da88bf45123b10d90642b807b9ef35751699594d85012cb32b45e9e970b","src/rect.rs":"761b3e1c841c03ec87e99ed9dd9c37d669bec6967c2dac2b6be2f056e9c8b7e0","src/rotation.rs":"0b0a299268a76fbc15c58aec788ad0bfc27f7f68bcfeade3dce71cd2585166f2","src/scale_factor.rs":"b093243256df3f2b8a2e2bf98236e6ec1032c3d358596f384313614dbefaca49","src/side_offsets.rs":"fd95ffc9a74e9e84314875c388e763d0780486eb7f9034423e3a22048361e379","src/size.rs":"5ecb66be6c42f07770662c925017a7ef6e1d0e332b3576e1884c488fbf9d4b59","src/transform2d.rs":"82b5a41881fc4ab947df0b337ad2ac2e1dce7d532df1a225eb5abf2d32776007","src/transform3d.rs":"3b944cae37968b3c4e98a25323ac57ba331d97638b0a747fff28f139fcb6043c","src/trig.rs":"ef290927af252ca90a29ba9f17158b591ed591604e66cb9df045dd47b9cfdca5","src/vector.rs":"7f076e77a9a6fbecf44c1802233e9c2d59015a94cccf94fd9d8832cfb037bdb8"},"package":"f5ed7d77e46f6600f490463ad7b6349c3ebb2d2319af56e679e279e4c66495d9"}
|
||||
{"files":{".travis.yml":"13574ca06216b94913348afb2beae9db9929f8964fbc45b3c00344ee281e1f52","COPYRIGHT":"ec82b96487e9e778ee610c7ab245162464782cfa1f555c2299333f8dbe5c036a","Cargo.toml":"718175d1afbcb7f5eaefbbc6724c6a052f347e3855d7ab1bdb554c0f23fc9711","LICENSE-APACHE":"a60eea817514531668d7e00765731449fe14d059d3249e0bc93b36de45f759f2","LICENSE-MIT":"62065228e42caebca7e7d7db1204cbb867033de5982ca4009928915e4095f3a3","README.md":"625bec69c76ce5423fdd05cfe46922b2680ec517f97c5854ce34798d1d8a9541","src/approxeq.rs":"6cf810ad389c73a27141a7a67454ed12d4b01c3c16605b9a7414b389bc0615dd","src/length.rs":"35340e1507b00d181dc384b63910c00a8d8ffc969d502f9ec9ce809339813d4d","src/lib.rs":"a9f80061b4983330972e05d53c93a5e9ed654eb3e49301e4a3eb077431c17b87","src/macros.rs":"5e48523febc5d548bc6bbb439433aedacd112904ad8a12d00464d8c483832b6b","src/num.rs":"749b201289fc6663199160a2f9204e17925fd3053f8ab7779e7bfb377ad06227","src/point.rs":"b6c605fa32eebb59ce9187703925cc4cb9689d3d8b1a8eb34cd5711c27afd8e7","src/rect.rs":"4c6c07f388d0cf137628e6fc10f5e24eb418eb0db75323c97043b67478d89d2f","src/rotation.rs":"18c797fbd81202fc8872c20c2831141610fba93d856881b09dbbd8832bc1b260","src/scale.rs":"11208e8b545a20a3ad538847402bdaefbeab0084b718cf52fb60f65bcc46eca1","src/side_offsets.rs":"334a786b8e97147bc2276a5e074b3f3bef445b99575958c29f062d2635e315ac","src/size.rs":"7a9ab2adfc158feadff5d5d90f72a107b7220497b1f66188ca027ed1caed978d","src/transform2d.rs":"263ee39937cfde3db8fbbb2dc19df833e8473d37bb314957bd9488a6a4a5f1df","src/transform3d.rs":"118dcfbba9e550e8e71c1efeaf1a9af09d60c10ad5d3345f4627bc919082ad6f","src/trig.rs":"6af3c834b8402c01c05f4a320e200c87550b46d7175f82eac1f97166c2680ec1","src/vector.rs":"ed864e70095dee3ab369cfb6c79718fff333bd82230b7c56e422654c52db99cf"},"package":"926c639bfdff1f3063f76bb66245f6d2b691aa20fdbaabecc38b2947a13a4eba"}
|
15
third_party/rust/euclid/Cargo.toml
vendored
15
third_party/rust/euclid/Cargo.toml
vendored
@ -12,7 +12,7 @@
|
||||
|
||||
[package]
|
||||
name = "euclid"
|
||||
version = "0.15.5"
|
||||
version = "0.16.0"
|
||||
authors = ["The Servo Project Developers"]
|
||||
description = "Geometry primitives"
|
||||
documentation = "https://docs.rs/euclid/"
|
||||
@ -20,23 +20,20 @@ keywords = ["matrix", "vector", "linear-algebra", "geometry"]
|
||||
categories = ["science"]
|
||||
license = "MIT / Apache-2.0"
|
||||
repository = "https://github.com/servo/euclid"
|
||||
[dependencies.heapsize]
|
||||
version = "0.4"
|
||||
[dependencies.log]
|
||||
version = "0.3.1"
|
||||
|
||||
[dependencies.num-traits]
|
||||
version = "0.1.32"
|
||||
default-features = false
|
||||
|
||||
[dependencies.log]
|
||||
version = "0.3.1"
|
||||
|
||||
[dependencies.serde]
|
||||
version = "1.0"
|
||||
[dev-dependencies.serde_test]
|
||||
version = "1.0"
|
||||
|
||||
[dev-dependencies.rand]
|
||||
version = "0.3.7"
|
||||
|
||||
[dev-dependencies.serde_test]
|
||||
version = "1.0"
|
||||
|
||||
[features]
|
||||
unstable = []
|
||||
|
138
third_party/rust/euclid/src/length.rs
vendored
138
third_party/rust/euclid/src/length.rs
vendored
@ -8,16 +8,15 @@
|
||||
// except according to those terms.
|
||||
//! A one-dimensional length, tagged with its units.
|
||||
|
||||
use scale_factor::ScaleFactor;
|
||||
use scale::TypedScale;
|
||||
use num::Zero;
|
||||
|
||||
use heapsize::HeapSizeOf;
|
||||
use num_traits::{NumCast, Saturating};
|
||||
use num::One;
|
||||
use serde::{Deserialize, Deserializer, Serialize, Serializer};
|
||||
use std::cmp::Ordering;
|
||||
use std::ops::{Add, Sub, Mul, Div, Neg};
|
||||
use std::ops::{AddAssign, SubAssign};
|
||||
use std::ops::{AddAssign, SubAssign, MulAssign, DivAssign};
|
||||
use std::marker::PhantomData;
|
||||
use std::fmt;
|
||||
|
||||
@ -30,10 +29,8 @@ use std::fmt;
|
||||
/// expression that requires a different unit. It may be a type without values, such as an empty
|
||||
/// enum.
|
||||
///
|
||||
/// You can multiply a `Length` by a `scale_factor::ScaleFactor` to convert it from one unit to
|
||||
/// another. See the `ScaleFactor` docs for an example.
|
||||
// Uncomment the derive, and remove the macro call, once heapsize gets
|
||||
// PhantomData<T> support.
|
||||
/// You can multiply a `Length` by a `scale::TypedScale` to convert it from one unit to
|
||||
/// another. See the `TypedScale` docs for an example.
|
||||
#[repr(C)]
|
||||
pub struct Length<T, Unit>(pub T, PhantomData<Unit>);
|
||||
|
||||
@ -45,12 +42,6 @@ impl<T: Clone, Unit> Clone for Length<T, Unit> {
|
||||
|
||||
impl<T: Copy, Unit> Copy for Length<T, Unit> {}
|
||||
|
||||
impl<Unit, T: HeapSizeOf> HeapSizeOf for Length<T, Unit> {
|
||||
fn heap_size_of_children(&self) -> usize {
|
||||
self.0.heap_size_of_children()
|
||||
}
|
||||
}
|
||||
|
||||
impl<'de, Unit, T> Deserialize<'de> for Length<T, Unit> where T: Deserialize<'de> {
|
||||
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
|
||||
where D: Deserializer<'de> {
|
||||
@ -131,27 +122,61 @@ impl<U, T: Clone + Saturating> Saturating for Length<T, U> {
|
||||
|
||||
// length / length
|
||||
impl<Src, Dst, T: Clone + Div<T, Output=T>> Div<Length<T, Src>> for Length<T, Dst> {
|
||||
type Output = ScaleFactor<T, Src, Dst>;
|
||||
type Output = TypedScale<T, Src, Dst>;
|
||||
#[inline]
|
||||
fn div(self, other: Length<T, Src>) -> ScaleFactor<T, Src, Dst> {
|
||||
ScaleFactor::new(self.get() / other.get())
|
||||
fn div(self, other: Length<T, Src>) -> TypedScale<T, Src, Dst> {
|
||||
TypedScale::new(self.get() / other.get())
|
||||
}
|
||||
}
|
||||
|
||||
// length * scalar
|
||||
impl<T: Copy + Mul<T, Output=T>, U> Mul<T> for Length<T, U> {
|
||||
type Output = Self;
|
||||
#[inline]
|
||||
fn mul(self, scale: T) -> Self {
|
||||
Length::new(self.get() * scale)
|
||||
}
|
||||
}
|
||||
|
||||
// length *= scalar
|
||||
impl<T: Copy + Mul<T, Output=T>, U> MulAssign<T> for Length<T, U> {
|
||||
#[inline]
|
||||
fn mul_assign(&mut self, scale: T) {
|
||||
*self = *self * scale
|
||||
}
|
||||
}
|
||||
|
||||
// length / scalar
|
||||
impl<T: Copy + Div<T, Output=T>, U> Div<T> for Length<T, U> {
|
||||
type Output = Self;
|
||||
#[inline]
|
||||
fn div(self, scale: T) -> Self {
|
||||
Length::new(self.get() / scale)
|
||||
}
|
||||
}
|
||||
|
||||
// length /= scalar
|
||||
impl<T: Copy + Div<T, Output=T>, U> DivAssign<T> for Length<T, U> {
|
||||
#[inline]
|
||||
fn div_assign(&mut self, scale: T) {
|
||||
*self = *self / scale
|
||||
}
|
||||
}
|
||||
|
||||
// length * scaleFactor
|
||||
impl<Src, Dst, T: Clone + Mul<T, Output=T>> Mul<ScaleFactor<T, Src, Dst>> for Length<T, Src> {
|
||||
impl<Src, Dst, T: Clone + Mul<T, Output=T>> Mul<TypedScale<T, Src, Dst>> for Length<T, Src> {
|
||||
type Output = Length<T, Dst>;
|
||||
#[inline]
|
||||
fn mul(self, scale: ScaleFactor<T, Src, Dst>) -> Length<T, Dst> {
|
||||
fn mul(self, scale: TypedScale<T, Src, Dst>) -> Length<T, Dst> {
|
||||
Length::new(self.get() * scale.get())
|
||||
}
|
||||
}
|
||||
|
||||
// length / scaleFactor
|
||||
impl<Src, Dst, T: Clone + Div<T, Output=T>> Div<ScaleFactor<T, Src, Dst>> for Length<T, Dst> {
|
||||
impl<Src, Dst, T: Clone + Div<T, Output=T>> Div<TypedScale<T, Src, Dst>> for Length<T, Dst> {
|
||||
type Output = Length<T, Src>;
|
||||
#[inline]
|
||||
fn div(self, scale: ScaleFactor<T, Src, Dst>) -> Length<T, Src> {
|
||||
fn div(self, scale: TypedScale<T, Src, Dst>) -> Length<T, Src> {
|
||||
Length::new(self.get() / scale.get())
|
||||
}
|
||||
}
|
||||
@ -211,9 +236,8 @@ mod tests {
|
||||
use super::Length;
|
||||
use num::Zero;
|
||||
|
||||
use heapsize::HeapSizeOf;
|
||||
use num_traits::Saturating;
|
||||
use scale_factor::ScaleFactor;
|
||||
use scale::TypedScale;
|
||||
use std::f32::INFINITY;
|
||||
|
||||
extern crate serde_test;
|
||||
@ -238,26 +262,6 @@ mod tests {
|
||||
assert_eq!(variable_length.get(), 24.0);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_heapsizeof_builtins() {
|
||||
// Heap size of built-ins is zero by default.
|
||||
let one_foot: Length<f32, Inch> = Length::new(12.0);
|
||||
|
||||
let heap_size_length_f32 = one_foot.heap_size_of_children();
|
||||
|
||||
assert_eq!(heap_size_length_f32, 0);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_heapsizeof_length_vector() {
|
||||
// Heap size of any Length is just the heap size of the length value.
|
||||
for n in 0..5 {
|
||||
let length: Length<Vec<f32>, Inch> = Length::new(Vec::with_capacity(n));
|
||||
|
||||
assert_eq!(length.heap_size_of_children(), length.0.heap_size_of_children());
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_length_serde() {
|
||||
let one_cm: Length<f32, Mm> = Length::new(10.0);
|
||||
@ -360,21 +364,21 @@ mod tests {
|
||||
|
||||
#[test]
|
||||
fn test_division_by_length() {
|
||||
// Division results in a ScaleFactor from denominator units
|
||||
// Division results in a TypedScale from denominator units
|
||||
// to numerator units.
|
||||
let length: Length<f32, Cm> = Length::new(5.0);
|
||||
let duration: Length<f32, Second> = Length::new(10.0);
|
||||
|
||||
let result = length / duration;
|
||||
|
||||
let expected: ScaleFactor<f32, Second, Cm> = ScaleFactor::new(0.5);
|
||||
let expected: TypedScale<f32, Second, Cm> = TypedScale::new(0.5);
|
||||
assert_eq!(result, expected);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_multiplication() {
|
||||
let length_mm: Length<f32, Mm> = Length::new(10.0);
|
||||
let cm_per_mm: ScaleFactor<f32, Mm, Cm> = ScaleFactor::new(0.1);
|
||||
let cm_per_mm: TypedScale<f32, Mm, Cm> = TypedScale::new(0.1);
|
||||
|
||||
let result = length_mm * cm_per_mm;
|
||||
|
||||
@ -382,10 +386,30 @@ mod tests {
|
||||
assert_eq!(result, expected);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_multiplication_with_scalar() {
|
||||
let length_mm: Length<f32, Mm> = Length::new(10.0);
|
||||
|
||||
let result = length_mm * 2.0;
|
||||
|
||||
let expected: Length<f32, Mm> = Length::new(20.0);
|
||||
assert_eq!(result, expected);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_multiplication_assignment() {
|
||||
let mut length: Length<f32, Mm> = Length::new(10.0);
|
||||
|
||||
length *= 2.0;
|
||||
|
||||
let expected: Length<f32, Mm> = Length::new(20.0);
|
||||
assert_eq!(length, expected);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_division_by_scalefactor() {
|
||||
let length: Length<f32, Cm> = Length::new(5.0);
|
||||
let cm_per_second: ScaleFactor<f32, Second, Cm> = ScaleFactor::new(10.0);
|
||||
let cm_per_second: TypedScale<f32, Second, Cm> = TypedScale::new(10.0);
|
||||
|
||||
let result = length / cm_per_second;
|
||||
|
||||
@ -393,6 +417,26 @@ mod tests {
|
||||
assert_eq!(result, expected);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_division_by_scalar() {
|
||||
let length: Length<f32, Cm> = Length::new(5.0);
|
||||
|
||||
let result = length / 2.0;
|
||||
|
||||
let expected: Length<f32, Cm> = Length::new(2.5);
|
||||
assert_eq!(result, expected);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_division_assignment() {
|
||||
let mut length: Length<f32, Mm> = Length::new(10.0);
|
||||
|
||||
length /= 2.0;
|
||||
|
||||
let expected: Length<f32, Mm> = Length::new(5.0);
|
||||
assert_eq!(length, expected);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_negation() {
|
||||
let length: Length<f32, Cm> = Length::new(5.0);
|
||||
@ -455,7 +499,7 @@ mod tests {
|
||||
|
||||
let result = length / length_zero;
|
||||
|
||||
let expected: ScaleFactor<f32, Cm, Cm> = ScaleFactor::new(INFINITY);
|
||||
let expected: TypedScale<f32, Cm, Cm> = TypedScale::new(INFINITY);
|
||||
assert_eq!(result, expected);
|
||||
}
|
||||
}
|
||||
|
28
third_party/rust/euclid/src/lib.rs
vendored
28
third_party/rust/euclid/src/lib.rs
vendored
@ -55,8 +55,6 @@
|
||||
//! assert_eq!(p.x, p.x_typed().get());
|
||||
//! ```
|
||||
|
||||
extern crate heapsize;
|
||||
|
||||
#[cfg_attr(test, macro_use)]
|
||||
extern crate log;
|
||||
extern crate serde;
|
||||
@ -68,7 +66,7 @@ extern crate test;
|
||||
extern crate num_traits;
|
||||
|
||||
pub use length::Length;
|
||||
pub use scale_factor::ScaleFactor;
|
||||
pub use scale::TypedScale;
|
||||
pub use transform2d::{Transform2D, TypedTransform2D};
|
||||
pub use transform3d::{Transform3D, TypedTransform3D};
|
||||
pub use point::{
|
||||
@ -81,7 +79,7 @@ pub use vector::{
|
||||
};
|
||||
|
||||
pub use rect::{Rect, TypedRect, rect};
|
||||
pub use rotation::{TypedRotation2D, Rotation2D, TypedRotation3D, Rotation3D};
|
||||
pub use rotation::{TypedRotation2D, Rotation2D, TypedRotation3D, Rotation3D, Angle};
|
||||
pub use side_offsets::{SideOffsets2D, TypedSideOffsets2D};
|
||||
#[cfg(feature = "unstable")] pub use side_offsets::SideOffsets2DSimdI32;
|
||||
pub use size::{Size2D, TypedSize2D, size2};
|
||||
@ -97,7 +95,7 @@ mod transform3d;
|
||||
mod point;
|
||||
mod rect;
|
||||
mod rotation;
|
||||
mod scale_factor;
|
||||
mod scale;
|
||||
mod side_offsets;
|
||||
mod size;
|
||||
mod trig;
|
||||
@ -107,18 +105,6 @@ mod vector;
|
||||
#[derive(Clone, Copy)]
|
||||
pub struct UnknownUnit;
|
||||
|
||||
/// Unit for angles in radians.
|
||||
pub struct Rad;
|
||||
|
||||
/// Unit for angles in degrees.
|
||||
pub struct Deg;
|
||||
|
||||
/// A value in radians.
|
||||
pub type Radians<T> = Length<T, Rad>;
|
||||
|
||||
/// A value in Degrees.
|
||||
pub type Degrees<T> = Length<T, Deg>;
|
||||
|
||||
/// Temporary alias to facilitate the transition to the new naming scheme
|
||||
#[deprecated]
|
||||
pub type Matrix2D<T> = Transform2D<T>;
|
||||
@ -134,3 +120,11 @@ pub type Matrix4D<T> = Transform3D<T>;
|
||||
/// Temporary alias to facilitate the transition to the new naming scheme
|
||||
#[deprecated]
|
||||
pub type TypedMatrix4D<T, Src, Dst> = TypedTransform3D<T, Src, Dst>;
|
||||
|
||||
/// Temporary alias to facilitate the transition to the new naming scheme
|
||||
#[deprecated]
|
||||
pub type ScaleFactor<T, Src, Dst> = TypedScale<T, Src, Dst>;
|
||||
|
||||
/// Temporary alias to facilitate the transition to the new naming scheme
|
||||
#[deprecated]
|
||||
pub use Angle as Radians;
|
||||
|
8
third_party/rust/euclid/src/macros.rs
vendored
8
third_party/rust/euclid/src/macros.rs
vendored
@ -32,14 +32,6 @@ macro_rules! define_matrix {
|
||||
|
||||
impl<T: Copy, $($phantom),+> Copy for $name<T, $($phantom),+> {}
|
||||
|
||||
impl<T, $($phantom),+> ::heapsize::HeapSizeOf for $name<T, $($phantom),+>
|
||||
where T: ::heapsize::HeapSizeOf
|
||||
{
|
||||
fn heap_size_of_children(&self) -> usize {
|
||||
$(self.$field.heap_size_of_children() +)+ 0
|
||||
}
|
||||
}
|
||||
|
||||
impl<'de, T, $($phantom),+> ::serde::Deserialize<'de> for $name<T, $($phantom),+>
|
||||
where T: ::serde::Deserialize<'de>
|
||||
{
|
||||
|
26
third_party/rust/euclid/src/point.rs
vendored
26
third_party/rust/euclid/src/point.rs
vendored
@ -10,7 +10,7 @@
|
||||
use super::UnknownUnit;
|
||||
use approxeq::ApproxEq;
|
||||
use length::Length;
|
||||
use scale_factor::ScaleFactor;
|
||||
use scale::TypedScale;
|
||||
use size::TypedSize2D;
|
||||
use num::*;
|
||||
use num_traits::{Float, NumCast};
|
||||
@ -217,18 +217,18 @@ impl<T: Copy + Div<T, Output=T>, U> DivAssign<T> for TypedPoint2D<T, U> {
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Mul<T, Output=T>, U1, U2> Mul<ScaleFactor<T, U1, U2>> for TypedPoint2D<T, U1> {
|
||||
impl<T: Copy + Mul<T, Output=T>, U1, U2> Mul<TypedScale<T, U1, U2>> for TypedPoint2D<T, U1> {
|
||||
type Output = TypedPoint2D<T, U2>;
|
||||
#[inline]
|
||||
fn mul(self, scale: ScaleFactor<T, U1, U2>) -> TypedPoint2D<T, U2> {
|
||||
fn mul(self, scale: TypedScale<T, U1, U2>) -> TypedPoint2D<T, U2> {
|
||||
point2(self.x * scale.get(), self.y * scale.get())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Div<T, Output=T>, U1, U2> Div<ScaleFactor<T, U1, U2>> for TypedPoint2D<T, U2> {
|
||||
impl<T: Copy + Div<T, Output=T>, U1, U2> Div<TypedScale<T, U1, U2>> for TypedPoint2D<T, U2> {
|
||||
type Output = TypedPoint2D<T, U1>;
|
||||
#[inline]
|
||||
fn div(self, scale: ScaleFactor<T, U1, U2>) -> TypedPoint2D<T, U1> {
|
||||
fn div(self, scale: TypedScale<T, U1, U2>) -> TypedPoint2D<T, U1> {
|
||||
point2(self.x / scale.get(), self.y / scale.get())
|
||||
}
|
||||
}
|
||||
@ -291,6 +291,12 @@ impl<T: NumCast + Copy, U> TypedPoint2D<T, U> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
|
||||
/// Cast into an `f64` point.
|
||||
#[inline]
|
||||
pub fn to_f64(&self) -> TypedPoint2D<f64, U> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
|
||||
/// Cast into an `usize` point, truncating decimals if any.
|
||||
///
|
||||
/// When casting from floating point points, it is worth considering whether
|
||||
@ -620,6 +626,12 @@ impl<T: NumCast + Copy, U> TypedPoint3D<T, U> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
|
||||
/// Cast into an `f64` point.
|
||||
#[inline]
|
||||
pub fn to_f64(&self) -> TypedPoint3D<f64, U> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
|
||||
/// Cast into an `usize` point, truncating decimals if any.
|
||||
///
|
||||
/// When casting from floating point points, it is worth considering whether
|
||||
@ -730,7 +742,7 @@ mod point2d {
|
||||
#[cfg(test)]
|
||||
mod typedpoint2d {
|
||||
use super::{TypedPoint2D, Point2D, point2};
|
||||
use scale_factor::ScaleFactor;
|
||||
use scale::TypedScale;
|
||||
use vector::vec2;
|
||||
|
||||
pub enum Mm {}
|
||||
@ -760,7 +772,7 @@ mod typedpoint2d {
|
||||
#[test]
|
||||
pub fn test_scalar_mul() {
|
||||
let p1 = Point2DMm::new(1.0, 2.0);
|
||||
let cm_per_mm: ScaleFactor<f32, Mm, Cm> = ScaleFactor::new(0.1);
|
||||
let cm_per_mm: TypedScale<f32, Mm, Cm> = TypedScale::new(0.1);
|
||||
|
||||
let result = p1 * cm_per_mm;
|
||||
|
||||
|
27
third_party/rust/euclid/src/rect.rs
vendored
27
third_party/rust/euclid/src/rect.rs
vendored
@ -9,13 +9,12 @@
|
||||
|
||||
use super::UnknownUnit;
|
||||
use length::Length;
|
||||
use scale_factor::ScaleFactor;
|
||||
use scale::TypedScale;
|
||||
use num::*;
|
||||
use point::TypedPoint2D;
|
||||
use vector::TypedVector2D;
|
||||
use size::TypedSize2D;
|
||||
|
||||
use heapsize::HeapSizeOf;
|
||||
use num_traits::NumCast;
|
||||
use serde::{Deserialize, Deserializer, Serialize, Serializer};
|
||||
use std::cmp::PartialOrd;
|
||||
@ -33,12 +32,6 @@ pub struct TypedRect<T, U = UnknownUnit> {
|
||||
/// The default rectangle type with no unit.
|
||||
pub type Rect<T> = TypedRect<T, UnknownUnit>;
|
||||
|
||||
impl<T: HeapSizeOf, U> HeapSizeOf for TypedRect<T, U> {
|
||||
fn heap_size_of_children(&self) -> usize {
|
||||
self.origin.heap_size_of_children() + self.size.heap_size_of_children()
|
||||
}
|
||||
}
|
||||
|
||||
impl<'de, T: Copy + Deserialize<'de>, U> Deserialize<'de> for TypedRect<T, U> {
|
||||
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
|
||||
where D: Deserializer<'de>
|
||||
@ -293,8 +286,9 @@ where T: Copy + Clone + PartialOrd + Add<T, Output=T> + Sub<T, Output=T> + Zero
|
||||
|
||||
impl<T, U> TypedRect<T, U> {
|
||||
#[inline]
|
||||
pub fn scale<Scale: Copy>(&self, x: Scale, y: Scale) -> Self
|
||||
where T: Copy + Clone + Mul<Scale, Output=T> {
|
||||
pub fn scale<S: Copy>(&self, x: S, y: S) -> Self
|
||||
where T: Copy + Clone + Mul<S, Output=T>
|
||||
{
|
||||
TypedRect::new(
|
||||
TypedPoint2D::new(self.origin.x * x, self.origin.y * y),
|
||||
TypedSize2D::new(self.size.width * x, self.size.height * y)
|
||||
@ -342,18 +336,18 @@ impl<T: Copy + Div<T, Output=T>, U> Div<T> for TypedRect<T, U> {
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Mul<T, Output=T>, U1, U2> Mul<ScaleFactor<T, U1, U2>> for TypedRect<T, U1> {
|
||||
impl<T: Copy + Mul<T, Output=T>, U1, U2> Mul<TypedScale<T, U1, U2>> for TypedRect<T, U1> {
|
||||
type Output = TypedRect<T, U2>;
|
||||
#[inline]
|
||||
fn mul(self, scale: ScaleFactor<T, U1, U2>) -> TypedRect<T, U2> {
|
||||
fn mul(self, scale: TypedScale<T, U1, U2>) -> TypedRect<T, U2> {
|
||||
TypedRect::new(self.origin * scale, self.size * scale)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Div<T, Output=T>, U1, U2> Div<ScaleFactor<T, U1, U2>> for TypedRect<T, U2> {
|
||||
impl<T: Copy + Div<T, Output=T>, U1, U2> Div<TypedScale<T, U1, U2>> for TypedRect<T, U2> {
|
||||
type Output = TypedRect<T, U1>;
|
||||
#[inline]
|
||||
fn div(self, scale: ScaleFactor<T, U1, U2>) -> TypedRect<T, U1> {
|
||||
fn div(self, scale: TypedScale<T, U1, U2>) -> TypedRect<T, U1> {
|
||||
TypedRect::new(self.origin / scale, self.size / scale)
|
||||
}
|
||||
}
|
||||
@ -427,6 +421,11 @@ impl<T: NumCast + Copy, Unit> TypedRect<T, Unit> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
|
||||
/// Cast into an `f64` rectangle.
|
||||
pub fn to_f64(&self) -> TypedRect<f64, Unit> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
|
||||
/// Cast into an `usize` rectangle, truncating decimals if any.
|
||||
///
|
||||
/// When casting from floating point rectangles, it is worth considering whether
|
||||
|
168
third_party/rust/euclid/src/rotation.rs
vendored
168
third_party/rust/euclid/src/rotation.rs
vendored
@ -10,11 +10,105 @@
|
||||
use approxeq::ApproxEq;
|
||||
use num_traits::{Float, One, Zero};
|
||||
use std::fmt;
|
||||
use std::ops::{Add, Neg, Mul, Sub, Div};
|
||||
use std::ops::{Add, Neg, Mul, Sub, Div, AddAssign, SubAssign, MulAssign, DivAssign};
|
||||
use std::marker::PhantomData;
|
||||
use trig::Trig;
|
||||
use {TypedPoint2D, TypedPoint3D, TypedVector2D, TypedVector3D, Vector3D, point2, point3, vec3};
|
||||
use {TypedTransform3D, TypedTransform2D, UnknownUnit, Radians};
|
||||
use {TypedTransform3D, TypedTransform2D, UnknownUnit};
|
||||
|
||||
/// An angle in radians
|
||||
#[derive(Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Hash)]
|
||||
pub struct Angle<T> {
|
||||
pub radians: T,
|
||||
}
|
||||
|
||||
impl<T> Angle<T> {
|
||||
#[inline]
|
||||
pub fn radians(radians: T) -> Self {
|
||||
Angle { radians }
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn get(self) -> T {
|
||||
self.radians
|
||||
}
|
||||
}
|
||||
|
||||
impl<T> Angle<T>
|
||||
where T: Trig
|
||||
{
|
||||
#[inline]
|
||||
pub fn degrees(deg: T) -> Self {
|
||||
Angle { radians: T::degrees_to_radians(deg) }
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn to_degrees(self) -> T {
|
||||
T::radians_to_degrees(self.radians)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Clone + Add<T, Output=T>> Add for Angle<T> {
|
||||
type Output = Angle<T>;
|
||||
fn add(self, other: Angle<T>) -> Angle<T> {
|
||||
Angle::radians(self.radians + other.radians)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Clone + AddAssign<T>> AddAssign for Angle<T> {
|
||||
fn add_assign(&mut self, other: Angle<T>) {
|
||||
self.radians += other.radians;
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Clone + Sub<T, Output=T>> Sub<Angle<T>> for Angle<T> {
|
||||
type Output = Angle<T>;
|
||||
fn sub(self, other: Angle<T>) -> <Self as Sub>::Output {
|
||||
Angle::radians(self.radians - other.radians)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Clone + SubAssign<T>> SubAssign for Angle<T> {
|
||||
fn sub_assign(&mut self, other: Angle<T>) {
|
||||
self.radians -= other.radians;
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Clone + Div<T, Output=T>> Div<Angle<T>> for Angle<T> {
|
||||
type Output = T;
|
||||
#[inline]
|
||||
fn div(self, other: Angle<T>) -> T {
|
||||
self.radians / other.radians
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Clone + Div<T, Output=T>> Div<T> for Angle<T> {
|
||||
type Output = Angle<T>;
|
||||
#[inline]
|
||||
fn div(self, factor: T) -> Angle<T> {
|
||||
Angle::radians(self.radians / factor)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Clone + DivAssign<T>> DivAssign<T> for Angle<T> {
|
||||
fn div_assign(&mut self, factor: T) {
|
||||
self.radians /= factor;
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Clone + Mul<T, Output=T>> Mul<T> for Angle<T> {
|
||||
type Output = Angle<T>;
|
||||
#[inline]
|
||||
fn mul(self, factor: T) -> Angle<T> {
|
||||
Angle::radians(self.radians * factor)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Clone + MulAssign<T>> MulAssign<T> for Angle<T> {
|
||||
fn mul_assign(&mut self, factor: T) {
|
||||
self.radians *= factor;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
define_matrix! {
|
||||
@ -30,15 +124,15 @@ pub type Rotation2D<T> = TypedRotation2D<T, UnknownUnit, UnknownUnit>;
|
||||
impl<T, Src, Dst> TypedRotation2D<T, Src, Dst> {
|
||||
#[inline]
|
||||
/// Creates a rotation from an angle in radians.
|
||||
pub fn new(angle: Radians<T>) -> Self {
|
||||
pub fn new(angle: Angle<T>) -> Self {
|
||||
TypedRotation2D {
|
||||
angle: angle.0,
|
||||
angle: angle.radians,
|
||||
_unit: PhantomData,
|
||||
}
|
||||
}
|
||||
|
||||
pub fn radians(angle: T) -> Self {
|
||||
Self::new(Radians::new(angle))
|
||||
Self::new(Angle::radians(angle))
|
||||
}
|
||||
|
||||
/// Creates the identity rotation.
|
||||
@ -50,9 +144,9 @@ impl<T, Src, Dst> TypedRotation2D<T, Src, Dst> {
|
||||
|
||||
impl<T, Src, Dst> TypedRotation2D<T, Src, Dst> where T: Clone
|
||||
{
|
||||
/// Returns self.angle as a strongly typed `Radians<T>`.
|
||||
pub fn get_angle(&self) -> Radians<T> {
|
||||
Radians::new(self.angle.clone())
|
||||
/// Returns self.angle as a strongly typed `Angle<T>`.
|
||||
pub fn get_angle(&self) -> Angle<T> {
|
||||
Angle::radians(self.angle.clone())
|
||||
}
|
||||
}
|
||||
|
||||
@ -208,34 +302,34 @@ where T: Copy + Clone +
|
||||
}
|
||||
|
||||
/// Creates a rotation around a given axis.
|
||||
pub fn around_axis(axis: TypedVector3D<T, Src>, angle: Radians<T>) -> Self {
|
||||
pub fn around_axis(axis: TypedVector3D<T, Src>, angle: Angle<T>) -> Self {
|
||||
let axis = axis.normalize();
|
||||
let two = T::one() + T::one();
|
||||
let (sin, cos) = Float::sin_cos(angle.get() / two);
|
||||
let (sin, cos) = Float::sin_cos(angle.radians / two);
|
||||
Self::quaternion(axis.x * sin, axis.y * sin, axis.z * sin, cos)
|
||||
}
|
||||
|
||||
/// Creates a rotation around the x axis.
|
||||
pub fn around_x(angle: Radians<T>) -> Self {
|
||||
pub fn around_x(angle: Angle<T>) -> Self {
|
||||
let zero = Zero::zero();
|
||||
let two = T::one() + T::one();
|
||||
let (sin, cos) = Float::sin_cos(angle.get() / two);
|
||||
let (sin, cos) = Float::sin_cos(angle.radians / two);
|
||||
Self::quaternion(sin, zero, zero, cos)
|
||||
}
|
||||
|
||||
/// Creates a rotation around the y axis.
|
||||
pub fn around_y(angle: Radians<T>) -> Self {
|
||||
pub fn around_y(angle: Angle<T>) -> Self {
|
||||
let zero = Zero::zero();
|
||||
let two = T::one() + T::one();
|
||||
let (sin, cos) = Float::sin_cos(angle.get() / two);
|
||||
let (sin, cos) = Float::sin_cos(angle.radians / two);
|
||||
Self::quaternion(zero, sin, zero, cos)
|
||||
}
|
||||
|
||||
/// Creates a rotation around the z axis.
|
||||
pub fn around_z(angle: Radians<T>) -> Self {
|
||||
pub fn around_z(angle: Angle<T>) -> Self {
|
||||
let zero = Zero::zero();
|
||||
let two = T::one() + T::one();
|
||||
let (sin, cos) = Float::sin_cos(angle.get() / two);
|
||||
let (sin, cos) = Float::sin_cos(angle.radians / two);
|
||||
Self::quaternion(zero, zero, sin, cos)
|
||||
}
|
||||
|
||||
@ -246,7 +340,7 @@ where T: Copy + Clone +
|
||||
/// - Roll (also calld bank) is a rotation around the x axis.
|
||||
/// - Pitch (also calld bearing) is a rotation around the y axis.
|
||||
/// - Yaw (also calld heading) is a rotation around the z axis.
|
||||
pub fn euler(roll: Radians<T>, pitch: Radians<T>, yaw: Radians<T>) -> Self {
|
||||
pub fn euler(roll: Angle<T>, pitch: Angle<T>, yaw: Angle<T>) -> Self {
|
||||
let half = T::one() / (T::one() + T::one());
|
||||
|
||||
let (sy, cy) = Float::sin_cos(half * yaw.get());
|
||||
@ -533,9 +627,9 @@ fn simple_rotation_2d() {
|
||||
fn simple_rotation_3d_in_2d() {
|
||||
use std::f32::consts::{PI, FRAC_PI_2};
|
||||
let ri = Rotation3D::identity();
|
||||
let r90 = Rotation3D::around_z(Radians::new(FRAC_PI_2));
|
||||
let rm90 = Rotation3D::around_z(Radians::new(-FRAC_PI_2));
|
||||
let r180 = Rotation3D::around_z(Radians::new(PI));
|
||||
let r90 = Rotation3D::around_z(Angle::radians(FRAC_PI_2));
|
||||
let rm90 = Rotation3D::around_z(Angle::radians(-FRAC_PI_2));
|
||||
let r180 = Rotation3D::around_z(Angle::radians(PI));
|
||||
|
||||
assert!(ri.rotate_point2d(&point2(1.0, 2.0)).approx_eq(&point2(1.0, 2.0)));
|
||||
assert!(r90.rotate_point2d(&point2(1.0, 2.0)).approx_eq(&point2(-2.0, 1.0)));
|
||||
@ -552,9 +646,9 @@ fn simple_rotation_3d_in_2d() {
|
||||
#[test]
|
||||
fn pre_post() {
|
||||
use std::f32::consts::{FRAC_PI_2};
|
||||
let r1 = Rotation3D::around_x(Radians::new(FRAC_PI_2));
|
||||
let r2 = Rotation3D::around_y(Radians::new(FRAC_PI_2));
|
||||
let r3 = Rotation3D::around_z(Radians::new(FRAC_PI_2));
|
||||
let r1 = Rotation3D::around_x(Angle::radians(FRAC_PI_2));
|
||||
let r2 = Rotation3D::around_y(Angle::radians(FRAC_PI_2));
|
||||
let r3 = Rotation3D::around_z(Angle::radians(FRAC_PI_2));
|
||||
|
||||
let t1 = r1.to_transform();
|
||||
let t2 = r2.to_transform();
|
||||
@ -579,15 +673,15 @@ fn to_transform3d() {
|
||||
use std::f32::consts::{PI, FRAC_PI_2};
|
||||
let rotations = [
|
||||
Rotation3D::identity(),
|
||||
Rotation3D::around_x(Radians::new(FRAC_PI_2)),
|
||||
Rotation3D::around_x(Radians::new(-FRAC_PI_2)),
|
||||
Rotation3D::around_x(Radians::new(PI)),
|
||||
Rotation3D::around_y(Radians::new(FRAC_PI_2)),
|
||||
Rotation3D::around_y(Radians::new(-FRAC_PI_2)),
|
||||
Rotation3D::around_y(Radians::new(PI)),
|
||||
Rotation3D::around_z(Radians::new(FRAC_PI_2)),
|
||||
Rotation3D::around_z(Radians::new(-FRAC_PI_2)),
|
||||
Rotation3D::around_z(Radians::new(PI)),
|
||||
Rotation3D::around_x(Angle::radians(FRAC_PI_2)),
|
||||
Rotation3D::around_x(Angle::radians(-FRAC_PI_2)),
|
||||
Rotation3D::around_x(Angle::radians(PI)),
|
||||
Rotation3D::around_y(Angle::radians(FRAC_PI_2)),
|
||||
Rotation3D::around_y(Angle::radians(-FRAC_PI_2)),
|
||||
Rotation3D::around_y(Angle::radians(PI)),
|
||||
Rotation3D::around_z(Angle::radians(FRAC_PI_2)),
|
||||
Rotation3D::around_z(Angle::radians(-FRAC_PI_2)),
|
||||
Rotation3D::around_z(Angle::radians(PI)),
|
||||
];
|
||||
|
||||
let points = [
|
||||
@ -639,13 +733,13 @@ fn around_axis() {
|
||||
use std::f32::consts::{PI, FRAC_PI_2};
|
||||
|
||||
// Two sort of trivial cases:
|
||||
let r1 = Rotation3D::around_axis(vec3(1.0, 1.0, 0.0), Radians::new(PI));
|
||||
let r2 = Rotation3D::around_axis(vec3(1.0, 1.0, 0.0), Radians::new(FRAC_PI_2));
|
||||
let r1 = Rotation3D::around_axis(vec3(1.0, 1.0, 0.0), Angle::radians(PI));
|
||||
let r2 = Rotation3D::around_axis(vec3(1.0, 1.0, 0.0), Angle::radians(FRAC_PI_2));
|
||||
assert!(r1.rotate_point3d(&point3(1.0, 2.0, 0.0)).approx_eq(&point3(2.0, 1.0, 0.0)));
|
||||
assert!(r2.rotate_point3d(&point3(1.0, 0.0, 0.0)).approx_eq(&point3(0.5, 0.5, -0.5.sqrt())));
|
||||
|
||||
// A more arbitray test (made up with numpy):
|
||||
let r3 = Rotation3D::around_axis(vec3(0.5, 1.0, 2.0), Radians::new(2.291288));
|
||||
let r3 = Rotation3D::around_axis(vec3(0.5, 1.0, 2.0), Angle::radians(2.291288));
|
||||
assert!(r3.rotate_point3d(&point3(1.0, 0.0, 0.0)).approx_eq(&point3(-0.58071821, 0.81401868, -0.01182979)));
|
||||
}
|
||||
|
||||
@ -659,8 +753,8 @@ fn from_euler() {
|
||||
// of transforming a point rather than the values of each qauetrnions.
|
||||
let p = point3(1.0, 2.0, 3.0);
|
||||
|
||||
let angle = Radians::new(FRAC_PI_2);
|
||||
let zero = Radians::new(0.0);
|
||||
let angle = Angle::radians(FRAC_PI_2);
|
||||
let zero = Angle::radians(0.0);
|
||||
|
||||
// roll
|
||||
let roll_re = Rotation3D::euler(angle, zero, zero);
|
||||
|
212
third_party/rust/euclid/src/scale.rs
vendored
Normal file
212
third_party/rust/euclid/src/scale.rs
vendored
Normal file
@ -0,0 +1,212 @@
|
||||
// Copyright 2014 The Servo Project Developers. See the COPYRIGHT
|
||||
// file at the top-level directory of this distribution.
|
||||
//
|
||||
// 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 type-checked scaling factor between units.
|
||||
|
||||
use num::One;
|
||||
|
||||
use num_traits::NumCast;
|
||||
use serde::{Deserialize, Deserializer, Serialize, Serializer};
|
||||
use std::fmt;
|
||||
use std::ops::{Add, Mul, Sub, Div, Neg};
|
||||
use std::marker::PhantomData;
|
||||
use {TypedRect, TypedSize2D, TypedPoint2D, TypedVector2D};
|
||||
|
||||
/// A scaling factor between two different units of measurement.
|
||||
///
|
||||
/// This is effectively a type-safe float, intended to be used in combination with other types like
|
||||
/// `length::Length` to enforce conversion between systems of measurement at compile time.
|
||||
///
|
||||
/// `Src` and `Dst` represent the units before and after multiplying a value by a `TypedScale`. They
|
||||
/// may be types without values, such as empty enums. For example:
|
||||
///
|
||||
/// ```rust
|
||||
/// use euclid::TypedScale;
|
||||
/// use euclid::Length;
|
||||
/// enum Mm {};
|
||||
/// enum Inch {};
|
||||
///
|
||||
/// let mm_per_inch: TypedScale<f32, Inch, Mm> = TypedScale::new(25.4);
|
||||
///
|
||||
/// let one_foot: Length<f32, Inch> = Length::new(12.0);
|
||||
/// let one_foot_in_mm: Length<f32, Mm> = one_foot * mm_per_inch;
|
||||
/// ```
|
||||
#[repr(C)]
|
||||
pub struct TypedScale<T, Src, Dst>(pub T, PhantomData<(Src, Dst)>);
|
||||
|
||||
impl<'de, T, Src, Dst> Deserialize<'de> for TypedScale<T, Src, Dst> where T: Deserialize<'de> {
|
||||
fn deserialize<D>(deserializer: D) -> Result<TypedScale<T, Src, Dst>, D::Error>
|
||||
where D: Deserializer<'de> {
|
||||
Ok(TypedScale(try!(Deserialize::deserialize(deserializer)), PhantomData))
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, Src, Dst> Serialize for TypedScale<T, Src, Dst> where T: Serialize {
|
||||
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error> where S: Serializer {
|
||||
self.0.serialize(serializer)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, Src, Dst> TypedScale<T, Src, Dst> {
|
||||
pub fn new(x: T) -> TypedScale<T, Src, Dst> {
|
||||
TypedScale(x, PhantomData)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Clone, Src, Dst> TypedScale<T, Src, Dst> {
|
||||
pub fn get(&self) -> T {
|
||||
self.0.clone()
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Clone + One + Div<T, Output=T>, Src, Dst> TypedScale<T, Src, Dst> {
|
||||
/// The inverse TypedScale (1.0 / self).
|
||||
pub fn inv(&self) -> TypedScale<T, Dst, Src> {
|
||||
let one: T = One::one();
|
||||
TypedScale::new(one / self.get())
|
||||
}
|
||||
}
|
||||
|
||||
// scale0 * scale1
|
||||
impl<T: Clone + Mul<T, Output=T>, A, B, C>
|
||||
Mul<TypedScale<T, B, C>> for TypedScale<T, A, B> {
|
||||
type Output = TypedScale<T, A, C>;
|
||||
#[inline]
|
||||
fn mul(self, other: TypedScale<T, B, C>) -> TypedScale<T, A, C> {
|
||||
TypedScale::new(self.get() * other.get())
|
||||
}
|
||||
}
|
||||
|
||||
// scale0 + scale1
|
||||
impl<T: Clone + Add<T, Output=T>, Src, Dst> Add for TypedScale<T, Src, Dst> {
|
||||
type Output = TypedScale<T, Src, Dst>;
|
||||
#[inline]
|
||||
fn add(self, other: TypedScale<T, Src, Dst>) -> TypedScale<T, Src, Dst> {
|
||||
TypedScale::new(self.get() + other.get())
|
||||
}
|
||||
}
|
||||
|
||||
// scale0 - scale1
|
||||
impl<T: Clone + Sub<T, Output=T>, Src, Dst> Sub for TypedScale<T, Src, Dst> {
|
||||
type Output = TypedScale<T, Src, Dst>;
|
||||
#[inline]
|
||||
fn sub(self, other: TypedScale<T, Src, Dst>) -> TypedScale<T, Src, Dst> {
|
||||
TypedScale::new(self.get() - other.get())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: NumCast + Clone, Src, Dst0> TypedScale<T, Src, Dst0> {
|
||||
/// Cast from one numeric representation to another, preserving the units.
|
||||
pub fn cast<T1: NumCast + Clone>(&self) -> Option<TypedScale<T1, Src, Dst0>> {
|
||||
NumCast::from(self.get()).map(TypedScale::new)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, Src, Dst> TypedScale<T, Src, Dst>
|
||||
where T: Copy + Clone +
|
||||
Mul<T, Output=T> +
|
||||
Neg<Output=T> +
|
||||
PartialEq +
|
||||
One
|
||||
{
|
||||
/// Returns the given point transformed by this scale.
|
||||
#[inline]
|
||||
pub fn transform_point(&self, point: &TypedPoint2D<T, Src>) -> TypedPoint2D<T, Dst> {
|
||||
TypedPoint2D::new(point.x * self.get(), point.y * self.get())
|
||||
}
|
||||
|
||||
/// Returns the given vector transformed by this scale.
|
||||
#[inline]
|
||||
pub fn transform_vector(&self, vec: &TypedVector2D<T, Src>) -> TypedVector2D<T, Dst> {
|
||||
TypedVector2D::new(vec.x * self.get(), vec.y * self.get())
|
||||
}
|
||||
|
||||
/// Returns the given vector transformed by this scale.
|
||||
#[inline]
|
||||
pub fn transform_size(&self, size: &TypedSize2D<T, Src>) -> TypedSize2D<T, Dst> {
|
||||
TypedSize2D::new(size.width * self.get(), size.height * self.get())
|
||||
}
|
||||
|
||||
/// Returns the given rect transformed by this scale.
|
||||
#[inline]
|
||||
pub fn transform_rect(&self, rect: &TypedRect<T, Src>) -> TypedRect<T, Dst> {
|
||||
TypedRect::new(
|
||||
self.transform_point(&rect.origin),
|
||||
self.transform_size(&rect.size),
|
||||
)
|
||||
}
|
||||
|
||||
/// Returns the inverse of this scale.
|
||||
#[inline]
|
||||
pub fn inverse(&self) -> TypedScale<T, Dst, Src> {
|
||||
TypedScale::new(-self.get())
|
||||
}
|
||||
|
||||
/// Returns true if this scale has no effect.
|
||||
#[inline]
|
||||
pub fn is_identity(&self) -> bool {
|
||||
self.get() == T::one()
|
||||
}
|
||||
}
|
||||
|
||||
// FIXME: Switch to `derive(PartialEq, Clone)` after this Rust issue is fixed:
|
||||
// https://github.com/mozilla/rust/issues/7671
|
||||
|
||||
impl<T: PartialEq, Src, Dst> PartialEq for TypedScale<T, Src, Dst> {
|
||||
fn eq(&self, other: &TypedScale<T, Src, Dst>) -> bool {
|
||||
self.0 == other.0
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Clone, Src, Dst> Clone for TypedScale<T, Src, Dst> {
|
||||
fn clone(&self) -> TypedScale<T, Src, Dst> {
|
||||
TypedScale::new(self.get())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy, Src, Dst> Copy for TypedScale<T, Src, Dst> {}
|
||||
|
||||
impl<T: fmt::Debug, Src, Dst> fmt::Debug for TypedScale<T, Src, Dst> {
|
||||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||
self.0.fmt(f)
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: fmt::Display, Src, Dst> fmt::Display for TypedScale<T, Src, Dst> {
|
||||
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
||||
self.0.fmt(f)
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::TypedScale;
|
||||
|
||||
enum Inch {}
|
||||
enum Cm {}
|
||||
enum Mm {}
|
||||
|
||||
#[test]
|
||||
fn test_scale() {
|
||||
let mm_per_inch: TypedScale<f32, Inch, Mm> = TypedScale::new(25.4);
|
||||
let cm_per_mm: TypedScale<f32, Mm, Cm> = TypedScale::new(0.1);
|
||||
|
||||
let mm_per_cm: TypedScale<f32, Cm, Mm> = cm_per_mm.inv();
|
||||
assert_eq!(mm_per_cm.get(), 10.0);
|
||||
|
||||
let cm_per_inch: TypedScale<f32, Inch, Cm> = mm_per_inch * cm_per_mm;
|
||||
assert_eq!(cm_per_inch, TypedScale::new(2.54));
|
||||
|
||||
let a: TypedScale<isize, Inch, Inch> = TypedScale::new(2);
|
||||
let b: TypedScale<isize, Inch, Inch> = TypedScale::new(3);
|
||||
assert!(a != b);
|
||||
assert_eq!(a, a.clone());
|
||||
assert_eq!(a.clone() + b.clone(), TypedScale::new(5));
|
||||
assert_eq!(a - b, TypedScale::new(-1));
|
||||
}
|
||||
}
|
8
third_party/rust/euclid/src/side_offsets.rs
vendored
8
third_party/rust/euclid/src/side_offsets.rs
vendored
@ -17,9 +17,6 @@ use std::fmt;
|
||||
use std::ops::Add;
|
||||
use std::marker::PhantomData;
|
||||
|
||||
#[cfg(feature = "unstable")]
|
||||
use heapsize::HeapSizeOf;
|
||||
|
||||
/// A group of side offsets, which correspond to top/left/bottom/right for borders, padding,
|
||||
/// and margins in CSS, optionally tagged with a unit.
|
||||
define_matrix! {
|
||||
@ -137,11 +134,6 @@ pub struct SideOffsets2DSimdI32 {
|
||||
pub left: i32,
|
||||
}
|
||||
|
||||
#[cfg(feature = "unstable")]
|
||||
impl HeapSizeOf for SideOffsets2DSimdI32 {
|
||||
fn heap_size_of_children(&self) -> usize { 0 }
|
||||
}
|
||||
|
||||
#[cfg(feature = "unstable")]
|
||||
impl SideOffsets2DSimdI32 {
|
||||
#[inline]
|
||||
|
15
third_party/rust/euclid/src/size.rs
vendored
15
third_party/rust/euclid/src/size.rs
vendored
@ -9,7 +9,7 @@
|
||||
|
||||
use super::UnknownUnit;
|
||||
use length::Length;
|
||||
use scale_factor::ScaleFactor;
|
||||
use scale::TypedScale;
|
||||
use vector::{TypedVector2D, vec2};
|
||||
use num::*;
|
||||
|
||||
@ -155,18 +155,18 @@ impl<T: Copy + Div<T, Output=T>, U> Div<T> for TypedSize2D<T, U> {
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Mul<T, Output=T>, U1, U2> Mul<ScaleFactor<T, U1, U2>> for TypedSize2D<T, U1> {
|
||||
impl<T: Copy + Mul<T, Output=T>, U1, U2> Mul<TypedScale<T, U1, U2>> for TypedSize2D<T, U1> {
|
||||
type Output = TypedSize2D<T, U2>;
|
||||
#[inline]
|
||||
fn mul(self, scale: ScaleFactor<T, U1, U2>) -> TypedSize2D<T, U2> {
|
||||
fn mul(self, scale: TypedScale<T, U1, U2>) -> TypedSize2D<T, U2> {
|
||||
TypedSize2D::new(self.width * scale.get(), self.height * scale.get())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Div<T, Output=T>, U1, U2> Div<ScaleFactor<T, U1, U2>> for TypedSize2D<T, U2> {
|
||||
impl<T: Copy + Div<T, Output=T>, U1, U2> Div<TypedScale<T, U1, U2>> for TypedSize2D<T, U2> {
|
||||
type Output = TypedSize2D<T, U1>;
|
||||
#[inline]
|
||||
fn div(self, scale: ScaleFactor<T, U1, U2>) -> TypedSize2D<T, U1> {
|
||||
fn div(self, scale: TypedScale<T, U1, U2>) -> TypedSize2D<T, U1> {
|
||||
TypedSize2D::new(self.width / scale.get(), self.height / scale.get())
|
||||
}
|
||||
}
|
||||
@ -217,6 +217,11 @@ impl<T: NumCast + Copy, Unit> TypedSize2D<T, Unit> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
|
||||
/// Cast into an `f64` size.
|
||||
pub fn to_f64(&self) -> TypedSize2D<f64, Unit> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
|
||||
/// Cast into an `uint` size, truncating decimals if any.
|
||||
///
|
||||
/// When casting from floating point sizes, it is worth considering whether
|
||||
|
12
third_party/rust/euclid/src/transform2d.rs
vendored
12
third_party/rust/euclid/src/transform2d.rs
vendored
@ -7,7 +7,7 @@
|
||||
// option. This file may not be copied, modified, or distributed
|
||||
// except according to those terms.
|
||||
|
||||
use super::{UnknownUnit, Radians};
|
||||
use super::{UnknownUnit, Angle};
|
||||
use num::{One, Zero};
|
||||
use point::TypedPoint2D;
|
||||
use vector::{TypedVector2D, vec2};
|
||||
@ -249,7 +249,7 @@ where T: Copy + Clone +
|
||||
}
|
||||
|
||||
/// Returns a rotation transform.
|
||||
pub fn create_rotation(theta: Radians<T>) -> Self {
|
||||
pub fn create_rotation(theta: Angle<T>) -> Self {
|
||||
let _0 = Zero::zero();
|
||||
let cos = theta.get().cos();
|
||||
let sin = theta.get().sin();
|
||||
@ -262,13 +262,13 @@ where T: Copy + Clone +
|
||||
|
||||
/// Applies a rotation after self's transformation and returns the resulting transform.
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn post_rotate(&self, theta: Radians<T>) -> Self {
|
||||
pub fn post_rotate(&self, theta: Angle<T>) -> Self {
|
||||
self.post_mul(&TypedTransform2D::create_rotation(theta))
|
||||
}
|
||||
|
||||
/// Applies a rotation after self's transformation and returns the resulting transform.
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn pre_rotate(&self, theta: Radians<T>) -> Self {
|
||||
pub fn pre_rotate(&self, theta: Angle<T>) -> Self {
|
||||
self.pre_mul(&TypedTransform2D::create_rotation(theta))
|
||||
}
|
||||
|
||||
@ -394,13 +394,13 @@ mod test {
|
||||
use super::*;
|
||||
use approxeq::ApproxEq;
|
||||
use point::Point2D;
|
||||
use Radians;
|
||||
use Angle;
|
||||
|
||||
use std::f32::consts::FRAC_PI_2;
|
||||
|
||||
type Mat = Transform2D<f32>;
|
||||
|
||||
fn rad(v: f32) -> Radians<f32> { Radians::new(v) }
|
||||
fn rad(v: f32) -> Angle<f32> { Angle::radians(v) }
|
||||
|
||||
#[test]
|
||||
pub fn test_translation() {
|
||||
|
20
third_party/rust/euclid/src/transform3d.rs
vendored
20
third_party/rust/euclid/src/transform3d.rs
vendored
@ -7,14 +7,14 @@
|
||||
// option. This file may not be copied, modified, or distributed
|
||||
// except according to those terms.
|
||||
|
||||
use super::{UnknownUnit, Radians};
|
||||
use super::{UnknownUnit, Angle};
|
||||
use approxeq::ApproxEq;
|
||||
use trig::Trig;
|
||||
use point::{TypedPoint2D, TypedPoint3D, point2, point3};
|
||||
use vector::{TypedVector2D, TypedVector3D, vec2, vec3};
|
||||
use rect::TypedRect;
|
||||
use transform2d::TypedTransform2D;
|
||||
use scale_factor::ScaleFactor;
|
||||
use scale::TypedScale;
|
||||
use num::{One, Zero};
|
||||
use std::ops::{Add, Mul, Sub, Div, Neg};
|
||||
use std::marker::PhantomData;
|
||||
@ -393,8 +393,8 @@ where T: Copy + Clone +
|
||||
)
|
||||
}
|
||||
|
||||
/// Convenience function to create a scale transform from a ScaleFactor.
|
||||
pub fn from_scale_factor(scale: ScaleFactor<T, Src, Dst>) -> Self {
|
||||
/// Convenience function to create a scale transform from a TypedScale.
|
||||
pub fn from_scale(scale: TypedScale<T, Src, Dst>) -> Self {
|
||||
TypedTransform3D::create_scale(scale.get(), scale.get(), scale.get())
|
||||
}
|
||||
|
||||
@ -511,7 +511,7 @@ where T: Copy + Clone +
|
||||
|
||||
/// Create a 3d rotation transform from an angle / axis.
|
||||
/// The supplied axis must be normalized.
|
||||
pub fn create_rotation(x: T, y: T, z: T, theta: Radians<T>) -> Self {
|
||||
pub fn create_rotation(x: T, y: T, z: T, theta: Angle<T>) -> Self {
|
||||
let (_0, _1): (T, T) = (Zero::zero(), One::one());
|
||||
let _2 = _1 + _1;
|
||||
|
||||
@ -548,20 +548,20 @@ where T: Copy + Clone +
|
||||
|
||||
/// Returns a transform with a rotation applied after self's transformation.
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn post_rotate(&self, x: T, y: T, z: T, theta: Radians<T>) -> Self {
|
||||
pub fn post_rotate(&self, x: T, y: T, z: T, theta: Angle<T>) -> Self {
|
||||
self.post_mul(&TypedTransform3D::create_rotation(x, y, z, theta))
|
||||
}
|
||||
|
||||
/// Returns a transform with a rotation applied before self's transformation.
|
||||
#[cfg_attr(feature = "unstable", must_use)]
|
||||
pub fn pre_rotate(&self, x: T, y: T, z: T, theta: Radians<T>) -> Self {
|
||||
pub fn pre_rotate(&self, x: T, y: T, z: T, theta: Angle<T>) -> Self {
|
||||
self.pre_mul(&TypedTransform3D::create_rotation(x, y, z, theta))
|
||||
}
|
||||
|
||||
/// Create a 2d skew transform.
|
||||
///
|
||||
/// See https://drafts.csswg.org/css-transforms/#funcdef-skew
|
||||
pub fn create_skew(alpha: Radians<T>, beta: Radians<T>) -> Self {
|
||||
pub fn create_skew(alpha: Angle<T>, beta: Angle<T>) -> Self {
|
||||
let (_0, _1): (T, T) = (Zero::zero(), One::one());
|
||||
let (sx, sy) = (beta.get().tan(), alpha.get().tan());
|
||||
TypedTransform3D::row_major(
|
||||
@ -696,7 +696,7 @@ mod tests {
|
||||
use approxeq::ApproxEq;
|
||||
use transform2d::Transform2D;
|
||||
use point::{Point2D, Point3D};
|
||||
use Radians;
|
||||
use Angle;
|
||||
use super::*;
|
||||
|
||||
use std::f32::consts::{FRAC_PI_2, PI};
|
||||
@ -704,7 +704,7 @@ mod tests {
|
||||
type Mf32 = Transform3D<f32>;
|
||||
|
||||
// For convenience.
|
||||
fn rad(v: f32) -> Radians<f32> { Radians::new(v) }
|
||||
fn rad(v: f32) -> Angle<f32> { Angle::radians(v) }
|
||||
|
||||
#[test]
|
||||
pub fn test_translation() {
|
||||
|
41
third_party/rust/euclid/src/trig.rs
vendored
41
third_party/rust/euclid/src/trig.rs
vendored
@ -13,10 +13,13 @@ pub trait Trig {
|
||||
fn sin(self) -> Self;
|
||||
fn cos(self) -> Self;
|
||||
fn tan(self) -> Self;
|
||||
fn fast_atan2(y: Self, x: Self) -> Self;
|
||||
fn degrees_to_radians(deg: Self) -> Self;
|
||||
fn radians_to_degrees(rad: Self) -> Self;
|
||||
}
|
||||
|
||||
macro_rules! trig {
|
||||
($ty:ty) => (
|
||||
($ty:ident) => (
|
||||
impl Trig for $ty {
|
||||
#[inline]
|
||||
fn sin(self) -> $ty { self.sin() }
|
||||
@ -24,9 +27,45 @@ macro_rules! trig {
|
||||
fn cos(self) -> $ty { self.cos() }
|
||||
#[inline]
|
||||
fn tan(self) -> $ty { self.tan() }
|
||||
|
||||
/// A slightly faster approximation of atan2.
|
||||
///
|
||||
/// Note that it does not deal with the case where both x and y are 0.
|
||||
#[inline]
|
||||
fn fast_atan2(y: $ty, x: $ty) -> $ty {
|
||||
// See https://math.stackexchange.com/questions/1098487/atan2-faster-approximation#1105038
|
||||
use std::$ty::consts;
|
||||
let x_abs = x.abs();
|
||||
let y_abs = y.abs();
|
||||
let a = x_abs.min(y_abs) / x_abs.max(y_abs);
|
||||
let s = a * a;
|
||||
let mut result = ((-0.0464964749 * s + 0.15931422) * s - 0.327622764) * s * a + a;
|
||||
if y_abs > x_abs {
|
||||
result = consts::FRAC_PI_2 - result;
|
||||
}
|
||||
if x < 0.0 {
|
||||
result = consts::PI - result
|
||||
}
|
||||
if y < 0.0 {
|
||||
result = -result
|
||||
}
|
||||
|
||||
result
|
||||
}
|
||||
|
||||
#[inline]
|
||||
fn degrees_to_radians(deg: Self) -> Self {
|
||||
deg.to_radians()
|
||||
}
|
||||
|
||||
#[inline]
|
||||
fn radians_to_degrees(rad: Self) -> Self {
|
||||
rad.to_degrees()
|
||||
}
|
||||
}
|
||||
)
|
||||
}
|
||||
|
||||
trig!(f32);
|
||||
trig!(f64);
|
||||
|
||||
|
50
third_party/rust/euclid/src/vector.rs
vendored
50
third_party/rust/euclid/src/vector.rs
vendored
@ -12,7 +12,9 @@ use approxeq::ApproxEq;
|
||||
use length::Length;
|
||||
use point::{TypedPoint2D, TypedPoint3D, point2, point3};
|
||||
use size::{TypedSize2D, size2};
|
||||
use scale_factor::ScaleFactor;
|
||||
use scale::TypedScale;
|
||||
use trig::Trig;
|
||||
use Angle;
|
||||
use num::*;
|
||||
use num_traits::{Float, NumCast, Signed};
|
||||
use std::fmt;
|
||||
@ -126,6 +128,14 @@ impl<T: Copy, U> TypedVector2D<T, U> {
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, U> TypedVector2D<T, U>
|
||||
where T: Trig + Copy + Sub<T, Output = T> {
|
||||
/// Returns the angle between this vector and the x axis between -PI and PI.
|
||||
pub fn angle_from_x_axis(&self) -> Angle<T> {
|
||||
Angle::radians(Trig::fast_atan2(self.y, self.x))
|
||||
}
|
||||
}
|
||||
|
||||
impl<T, U> TypedVector2D<T, U>
|
||||
where T: Copy + Mul<T, Output=T> + Add<T, Output=T> + Sub<T, Output=T> {
|
||||
/// Dot product.
|
||||
@ -252,18 +262,18 @@ impl<T: Copy + Div<T, Output=T>, U> DivAssign<T> for TypedVector2D<T, U> {
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Mul<T, Output=T>, U1, U2> Mul<ScaleFactor<T, U1, U2>> for TypedVector2D<T, U1> {
|
||||
impl<T: Copy + Mul<T, Output=T>, U1, U2> Mul<TypedScale<T, U1, U2>> for TypedVector2D<T, U1> {
|
||||
type Output = TypedVector2D<T, U2>;
|
||||
#[inline]
|
||||
fn mul(self, scale: ScaleFactor<T, U1, U2>) -> TypedVector2D<T, U2> {
|
||||
fn mul(self, scale: TypedScale<T, U1, U2>) -> TypedVector2D<T, U2> {
|
||||
vec2(self.x * scale.get(), self.y * scale.get())
|
||||
}
|
||||
}
|
||||
|
||||
impl<T: Copy + Div<T, Output=T>, U1, U2> Div<ScaleFactor<T, U1, U2>> for TypedVector2D<T, U2> {
|
||||
impl<T: Copy + Div<T, Output=T>, U1, U2> Div<TypedScale<T, U1, U2>> for TypedVector2D<T, U2> {
|
||||
type Output = TypedVector2D<T, U1>;
|
||||
#[inline]
|
||||
fn div(self, scale: ScaleFactor<T, U1, U2>) -> TypedVector2D<T, U1> {
|
||||
fn div(self, scale: TypedScale<T, U1, U2>) -> TypedVector2D<T, U1> {
|
||||
vec2(self.x / scale.get(), self.y / scale.get())
|
||||
}
|
||||
}
|
||||
@ -326,6 +336,12 @@ impl<T: NumCast + Copy, U> TypedVector2D<T, U> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
|
||||
/// Cast into an `f64` vector.
|
||||
#[inline]
|
||||
pub fn to_f64(&self) -> TypedVector2D<f64, U> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
|
||||
/// Cast into an `usize` vector, truncating decimals if any.
|
||||
///
|
||||
/// When casting from floating vector vectors, it is worth considering whether
|
||||
@ -700,6 +716,12 @@ impl<T: NumCast + Copy, U> TypedVector3D<T, U> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
|
||||
/// Cast into an `f64` vector.
|
||||
#[inline]
|
||||
pub fn to_f64(&self) -> TypedVector3D<f64, U> {
|
||||
self.cast().unwrap()
|
||||
}
|
||||
|
||||
/// Cast into an `usize` vector, truncating decimals if any.
|
||||
///
|
||||
/// When casting from floating vector vectors, it is worth considering whether
|
||||
@ -841,12 +863,26 @@ mod vector2d {
|
||||
|
||||
assert_eq!(result, vec2(2.0, 3.0));
|
||||
}
|
||||
|
||||
#[test]
|
||||
pub fn test_angle_from_x_axis() {
|
||||
use std::f32::consts::FRAC_PI_2;
|
||||
use approxeq::ApproxEq;
|
||||
|
||||
let right: Vec2 = vec2(10.0, 0.0);
|
||||
let down: Vec2 = vec2(0.0, 4.0);
|
||||
let up: Vec2 = vec2(0.0, -1.0);
|
||||
|
||||
assert!(right.angle_from_x_axis().get().approx_eq(&0.0));
|
||||
assert!(down.angle_from_x_axis().get().approx_eq(&FRAC_PI_2));
|
||||
assert!(up.angle_from_x_axis().get().approx_eq(&-FRAC_PI_2));
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod typedvector2d {
|
||||
use super::{TypedVector2D, Vector2D, vec2};
|
||||
use scale_factor::ScaleFactor;
|
||||
use scale::TypedScale;
|
||||
|
||||
pub enum Mm {}
|
||||
pub enum Cm {}
|
||||
@ -875,7 +911,7 @@ mod typedvector2d {
|
||||
#[test]
|
||||
pub fn test_scalar_mul() {
|
||||
let p1 = Vector2DMm::new(1.0, 2.0);
|
||||
let cm_per_mm: ScaleFactor<f32, Mm, Cm> = ScaleFactor::new(0.1);
|
||||
let cm_per_mm: TypedScale<f32, Mm, Cm> = TypedScale::new(0.1);
|
||||
|
||||
let result: Vector2DCm<f32> = p1 * cm_per_mm;
|
||||
|
||||
|
33
toolkit/library/gtest/rust/Cargo.lock
generated
33
toolkit/library/gtest/rust/Cargo.lock
generated
@ -22,6 +22,15 @@ dependencies = [
|
||||
"serde 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "app_units"
|
||||
version = "0.6.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
dependencies = [
|
||||
"num-traits 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"serde 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "arrayvec"
|
||||
version = "0.4.6"
|
||||
@ -458,6 +467,16 @@ dependencies = [
|
||||
"serde 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "euclid"
|
||||
version = "0.16.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
dependencies = [
|
||||
"log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"num-traits 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"serde 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "fallible"
|
||||
version = "0.0.1"
|
||||
@ -738,9 +757,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
name = "malloc_size_of"
|
||||
version = "0.0.1"
|
||||
dependencies = [
|
||||
"app_units 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"app_units 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"cssparser 0.23.2 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"euclid 0.15.5 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"euclid 0.16.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"hashglobe 0.1.0",
|
||||
"servo_arc 0.0.1",
|
||||
"smallbitvec 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
@ -1240,7 +1259,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
name = "style"
|
||||
version = "0.0.1"
|
||||
dependencies = [
|
||||
"app_units 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"app_units 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"arrayvec 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"atomic_refcell 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"bindgen 0.31.3 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
@ -1248,7 +1267,7 @@ dependencies = [
|
||||
"byteorder 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"cfg-if 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"cssparser 0.23.2 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"euclid 0.15.5 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"euclid 0.16.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"fallible 0.0.1",
|
||||
"fnv 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"hashglobe 0.1.0",
|
||||
@ -1298,10 +1317,10 @@ dependencies = [
|
||||
name = "style_traits"
|
||||
version = "0.0.1"
|
||||
dependencies = [
|
||||
"app_units 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"app_units 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"bitflags 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"cssparser 0.23.2 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"euclid 0.15.5 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"euclid 0.16.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"malloc_size_of 0.0.1",
|
||||
"malloc_size_of_derive 0.0.1",
|
||||
"selectors 0.19.0",
|
||||
@ -1587,6 +1606,7 @@ dependencies = [
|
||||
"checksum aho-corasick 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)" = "500909c4f87a9e52355b26626d890833e9e1d53ac566db76c36faa984b889699"
|
||||
"checksum ansi_term 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "23ac7c30002a5accbf7e8987d0632fa6de155b7c3d39d0067317a391e00a2ef6"
|
||||
"checksum app_units 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)" = "ed0a4de09a3b8449515e649f3bb84f72ea15fc2d10639beb0776a09b7d308074"
|
||||
"checksum app_units 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "29069a9b483f7780aebb55dafb360c6225eefdc1f98c8d336a65148fd10c37b1"
|
||||
"checksum arrayvec 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)" = "2f0ef4a9820019a0c91d918918c93dc71d469f581a49b47ddc1d285d4270bbe2"
|
||||
"checksum atomic_refcell 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fb2dcb6e6d35f20276943cc04bb98e538b348d525a04ac79c10021561d202f21"
|
||||
"checksum atty 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "d912da0db7fa85514874458ca3651fe2cddace8d0b0505571dbdcd41ab490159"
|
||||
@ -1627,6 +1647,7 @@ dependencies = [
|
||||
"checksum env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "3ddf21e73e016298f5cb37d6ef8e8da8e39f91f9ec8b0df44b7deb16a9f8cd5b"
|
||||
"checksum error-chain 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d9435d864e017c3c6afeac1654189b06cdb491cf2ff73dbf0d73b0f292f42ff8"
|
||||
"checksum euclid 0.15.5 (registry+https://github.com/rust-lang/crates.io-index)" = "f5ed7d77e46f6600f490463ad7b6349c3ebb2d2319af56e679e279e4c66495d9"
|
||||
"checksum euclid 0.16.0 (registry+https://github.com/rust-lang/crates.io-index)" = "926c639bfdff1f3063f76bb66245f6d2b691aa20fdbaabecc38b2947a13a4eba"
|
||||
"checksum fnv 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "6cc484842f1e2884faf56f529f960cc12ad8c71ce96cc7abba0a067c98fee344"
|
||||
"checksum foreign-types 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5ebc04f19019fff1f2d627b5581574ead502f80c48c88900575a46e0840fe5d0"
|
||||
"checksum freetype 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "398b8a11884898184d55aca9806f002b3cf68f0e860e0cbb4586f834ee39b0e7"
|
||||
|
35
toolkit/library/rust/Cargo.lock
generated
35
toolkit/library/rust/Cargo.lock
generated
@ -22,6 +22,15 @@ dependencies = [
|
||||
"serde 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "app_units"
|
||||
version = "0.6.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
dependencies = [
|
||||
"num-traits 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"serde 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "arrayvec"
|
||||
version = "0.4.6"
|
||||
@ -458,6 +467,16 @@ dependencies = [
|
||||
"serde 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "euclid"
|
||||
version = "0.16.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
dependencies = [
|
||||
"log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"num-traits 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"serde 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "fallible"
|
||||
version = "0.0.1"
|
||||
@ -737,9 +756,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
name = "malloc_size_of"
|
||||
version = "0.0.1"
|
||||
dependencies = [
|
||||
"app_units 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"app_units 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"cssparser 0.23.2 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"euclid 0.15.5 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"euclid 0.16.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"hashglobe 0.1.0",
|
||||
"servo_arc 0.0.1",
|
||||
"smallbitvec 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
@ -1232,7 +1251,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
name = "style"
|
||||
version = "0.0.1"
|
||||
dependencies = [
|
||||
"app_units 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"app_units 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"arrayvec 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"atomic_refcell 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"bindgen 0.31.3 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
@ -1240,7 +1259,7 @@ dependencies = [
|
||||
"byteorder 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"cfg-if 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"cssparser 0.23.2 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"euclid 0.15.5 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"euclid 0.16.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"fallible 0.0.1",
|
||||
"fnv 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"hashglobe 0.1.0",
|
||||
@ -1290,10 +1309,10 @@ dependencies = [
|
||||
name = "style_traits"
|
||||
version = "0.0.1"
|
||||
dependencies = [
|
||||
"app_units 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"app_units 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"bitflags 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"cssparser 0.23.2 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"euclid 0.15.5 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"euclid 0.16.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"malloc_size_of 0.0.1",
|
||||
"malloc_size_of_derive 0.0.1",
|
||||
"selectors 0.19.0",
|
||||
@ -1307,7 +1326,7 @@ dependencies = [
|
||||
"atomic_refcell 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"cssparser 0.23.2 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"euclid 0.15.5 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"euclid 0.16.0 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"geckoservo 0.0.1",
|
||||
"libc 0.2.24 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
"log 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
|
||||
@ -1599,6 +1618,7 @@ dependencies = [
|
||||
"checksum aho-corasick 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)" = "500909c4f87a9e52355b26626d890833e9e1d53ac566db76c36faa984b889699"
|
||||
"checksum ansi_term 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "23ac7c30002a5accbf7e8987d0632fa6de155b7c3d39d0067317a391e00a2ef6"
|
||||
"checksum app_units 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)" = "ed0a4de09a3b8449515e649f3bb84f72ea15fc2d10639beb0776a09b7d308074"
|
||||
"checksum app_units 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "29069a9b483f7780aebb55dafb360c6225eefdc1f98c8d336a65148fd10c37b1"
|
||||
"checksum arrayvec 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)" = "2f0ef4a9820019a0c91d918918c93dc71d469f581a49b47ddc1d285d4270bbe2"
|
||||
"checksum atomic_refcell 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fb2dcb6e6d35f20276943cc04bb98e538b348d525a04ac79c10021561d202f21"
|
||||
"checksum atty 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "d912da0db7fa85514874458ca3651fe2cddace8d0b0505571dbdcd41ab490159"
|
||||
@ -1639,6 +1659,7 @@ dependencies = [
|
||||
"checksum env_logger 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "3ddf21e73e016298f5cb37d6ef8e8da8e39f91f9ec8b0df44b7deb16a9f8cd5b"
|
||||
"checksum error-chain 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d9435d864e017c3c6afeac1654189b06cdb491cf2ff73dbf0d73b0f292f42ff8"
|
||||
"checksum euclid 0.15.5 (registry+https://github.com/rust-lang/crates.io-index)" = "f5ed7d77e46f6600f490463ad7b6349c3ebb2d2319af56e679e279e4c66495d9"
|
||||
"checksum euclid 0.16.0 (registry+https://github.com/rust-lang/crates.io-index)" = "926c639bfdff1f3063f76bb66245f6d2b691aa20fdbaabecc38b2947a13a4eba"
|
||||
"checksum fnv 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "6cc484842f1e2884faf56f529f960cc12ad8c71ce96cc7abba0a067c98fee344"
|
||||
"checksum foreign-types 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5ebc04f19019fff1f2d627b5581574ead502f80c48c88900575a46e0840fe5d0"
|
||||
"checksum freetype 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "398b8a11884898184d55aca9806f002b3cf68f0e860e0cbb4586f834ee39b0e7"
|
||||
|
Loading…
Reference in New Issue
Block a user