nova_math/
quantize.rs

1/*
2 *
3 * This file is a part of NovaEngine
4 * https://gitlab.com/MindSpunk/NovaEngine
5 *
6 *
7 * MIT License
8 *
9 * Copyright (c) 2018 Nathan Voglsam
10 *
11 * Permission is hereby granted, free of charge, to any person obtaining a copy
12 * of this software and associated documentation files (the "Software"), to deal
13 * in the Software without restriction, including without limitation the rights
14 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
15 * copies of the Software, and to permit persons to whom the Software is
16 * furnished to do so, subject to the following conditions:
17 *
18 * The above copyright notice and this permission notice shall be included in all
19 * copies or substantial portions of the Software.
20 *
21 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
22 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
23 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
24 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
25 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
26 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
27 * SOFTWARE.
28 */
29
30use num_traits::PrimInt;
31use num_traits::Signed;
32use num_traits::Unsigned;
33
34use crate::traits::Real;
35
36pub fn snorm_to_float<In: Signed + PrimInt, Out: Real>(input: In) -> Out {
37    let max_val: Out = Out::from(In::max_value()).unwrap();
38    let factor: Out = Out::one() / max_val;
39    Out::from(input).unwrap() * factor
40}
41
42pub fn unorm_to_float<In: Unsigned + PrimInt, Out: Real>(input: In) -> Out {
43    let max_val: Out = Out::from(In::max_value()).unwrap();
44    Out::from(input).unwrap() / max_val
45}
nova_math/quantize.rs

nova_math/
quantize.rs
