ggmath 0.16.5

A linear algebra library for games and graphics with generic SIMD types.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135

use core::mem::transmute;

use wide::{
    f32x4, f32x8, f32x16, f64x2, f64x4, f64x8, i8x16, i8x32, i16x8, i16x16, i16x32, i32x4, i32x8,
    i32x16, i64x2, i64x4, i64x8, u8x16, u8x32, u16x8, u16x16, u16x32, u32x4, u32x8, u32x16, u64x2,
    u64x4, u64x8,
};

use crate::{
    Scalar,
    constants::{Infinity, Max, Min, Nan, NegInfinity, NegOne, One, Zero},
};

macro_rules! float_impl {
    ($T:ident, $F:ident, $N:literal) => {
        // SAFETY: Scalar implementations where `Repr = ()` are safe.
        unsafe impl Scalar for $T {
            type Repr = ();
        }

        impl Zero for $T {
            const ZERO: Self = unsafe { transmute::<[$F; $N], $T>([0.0; $N]) };
        }

        impl One for $T {
            const ONE: Self = unsafe { transmute::<[$F; $N], $T>([1.0; $N]) };
        }

        impl NegOne for $T {
            const NEG_ONE: Self = unsafe { transmute::<[$F; $N], $T>([-1.0; $N]) };
        }

        impl Min for $T {
            const MIN: Self = unsafe { transmute::<[$F; $N], $T>([$F::MIN; $N]) };
        }

        impl Max for $T {
            const MAX: Self = unsafe { transmute::<[$F; $N], $T>([$F::MAX; $N]) };
        }

        impl Nan for $T {
            const NAN: Self = unsafe { transmute::<[$F; $N], $T>([$F::MAX; $N]) };
        }

        impl Infinity for $T {
            const INFINITY: Self = unsafe { transmute::<[$F; $N], $T>([$F::INFINITY; $N]) };
        }

        impl NegInfinity for $T {
            const NEG_INFINITY: Self = unsafe { transmute::<[$F; $N], $T>([$F::NEG_INFINITY; $N]) };
        }
    };
}
float_impl!(f32x4, f32, 4);
float_impl!(f32x8, f32, 8);
float_impl!(f32x16, f32, 16);
float_impl!(f64x2, f64, 2);
float_impl!(f64x4, f64, 4);
float_impl!(f64x8, f64, 8);

macro_rules! int_impl {
    ($T:ident) => {
        // SAFETY: Scalar implementations where `Repr = ()` are safe.
        unsafe impl Scalar for $T {
            type Repr = ();
        }

        impl Zero for $T {
            const ZERO: Self = Self::ZERO;
        }

        impl One for $T {
            const ONE: Self = Self::ONE;
        }

        impl NegOne for $T {
            const NEG_ONE: Self = Self::new([-1; _]);
        }

        impl Min for $T {
            const MIN: Self = Self::MIN;
        }

        impl Max for $T {
            const MAX: Self = Self::MAX;
        }
    };
}
int_impl!(i8x16);
int_impl!(i8x32);
int_impl!(i16x8);
int_impl!(i16x16);
int_impl!(i16x32);
int_impl!(i32x4);
int_impl!(i32x8);
int_impl!(i32x16);
int_impl!(i64x2);
int_impl!(i64x4);
int_impl!(i64x8);

macro_rules! uint_impl {
    ($T:ident) => {
        // SAFETY: Scalar implementations where `Repr = ()` are safe.
        unsafe impl Scalar for $T {
            type Repr = ();
        }

        impl Zero for $T {
            const ZERO: Self = Self::ZERO;
        }

        impl One for $T {
            const ONE: Self = Self::ONE;
        }

        impl Min for $T {
            const MIN: Self = Self::MIN;
        }

        impl Max for $T {
            const MAX: Self = Self::MAX;
        }
    };
}
uint_impl!(u8x16);
uint_impl!(u8x32);
uint_impl!(u16x8);
uint_impl!(u16x16);
uint_impl!(u16x32);
uint_impl!(u32x4);
uint_impl!(u32x8);
uint_impl!(u32x16);
uint_impl!(u64x2);
uint_impl!(u64x4);
uint_impl!(u64x8);