48 lines
1.5 KiB
Rust
48 lines
1.5 KiB
Rust
// pathfinder/content/src/util.rs
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//
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// Copyright © 2020 The Pathfinder Project Developers.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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//! Miscellaneous utilities.
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use pathfinder_geometry::line_segment::LineSegment2F;
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use pathfinder_geometry::transform2d::Transform2F;
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use pathfinder_simd::default::{F32x2, F32x4};
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use std::hash::{Hash, Hasher};
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use std::mem;
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pub(crate) fn hash_line_segment<H>(line_segment: LineSegment2F, state: &mut H) where H: Hasher {
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hash_f32x4(line_segment.0, state);
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}
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pub(crate) fn hash_transform2f<H>(transform: Transform2F, state: &mut H) where H: Hasher {
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hash_f32x4(transform.matrix.0, state);
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hash_f32x2(transform.vector.0, state);
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}
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pub(crate) fn hash_f32<H>(value: f32, state: &mut H) where H: Hasher {
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unsafe {
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let data: u32 = mem::transmute::<f32, u32>(value);
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data.hash(state);
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}
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}
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pub(crate) fn hash_f32x2<H>(vector: F32x2, state: &mut H) where H: Hasher {
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unsafe {
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let data: [u32; 2] = mem::transmute::<F32x2, [u32; 2]>(vector);
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data.hash(state);
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}
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}
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pub(crate) fn hash_f32x4<H>(vector: F32x4, state: &mut H) where H: Hasher {
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unsafe {
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let data: [u32; 4] = mem::transmute::<F32x4, [u32; 4]>(vector);
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data.hash(state);
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}
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}
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