diff options
Diffstat (limited to 'src/bool/sse2/bvec4a.rs')
-rw-r--r-- | src/bool/sse2/bvec4a.rs | 37 |
1 files changed, 2 insertions, 35 deletions
diff --git a/src/bool/sse2/bvec4a.rs b/src/bool/sse2/bvec4a.rs index 18f8a03..fc9d08c 100644 --- a/src/bool/sse2/bvec4a.rs +++ b/src/bool/sse2/bvec4a.rs @@ -9,7 +9,6 @@ use core::arch::x86::*; #[cfg(target_arch = "x86_64")] use core::arch::x86_64::*; -#[repr(C)] union UnionCast { a: [u32; 4], v: BVec4A, @@ -17,7 +16,8 @@ union UnionCast { /// A 4-dimensional SIMD vector mask. /// -/// This type is 16 byte aligned. +/// This type is 16 byte aligned and is backed by a SIMD vector. If SIMD is not available +/// `BVec4A` will be a type alias for `BVec4`. #[derive(Clone, Copy)] #[repr(transparent)] pub struct BVec4A(pub(crate) __m128); @@ -33,7 +33,6 @@ impl BVec4A { /// Creates a new vector mask. #[inline(always)] - #[must_use] pub const fn new(x: bool, y: bool, z: bool, w: bool) -> Self { unsafe { UnionCast { @@ -50,7 +49,6 @@ impl BVec4A { /// Creates a vector with all elements set to `v`. #[inline] - #[must_use] pub const fn splat(v: bool) -> Self { Self::new(v, v, v, v) } @@ -60,53 +58,23 @@ impl BVec4A { /// A true element results in a `1` bit and a false element in a `0` bit. Element `x` goes /// into the first lowest bit, element `y` into the second, etc. #[inline] - #[must_use] pub fn bitmask(self) -> u32 { unsafe { _mm_movemask_ps(self.0) as u32 } } /// Returns true if any of the elements are true, false otherwise. #[inline] - #[must_use] pub fn any(self) -> bool { self.bitmask() != 0 } /// Returns true if all the elements are true, false otherwise. #[inline] - #[must_use] pub fn all(self) -> bool { self.bitmask() == 0xf } - /// Tests the value at `index`. - /// - /// Panics if `index` is greater than 3. - #[inline] - #[must_use] - pub fn test(&self, index: usize) -> bool { - match index { - 0 => (self.bitmask() & (1 << 0)) != 0, - 1 => (self.bitmask() & (1 << 1)) != 0, - 2 => (self.bitmask() & (1 << 2)) != 0, - 3 => (self.bitmask() & (1 << 3)) != 0, - _ => panic!("index out of bounds"), - } - } - - /// Sets the element at `index`. - /// - /// Panics if `index` is greater than 3. - #[inline] - pub fn set(&mut self, index: usize, value: bool) { - use crate::Vec4; - let mut v = Vec4(self.0); - v[index] = f32::from_bits(MASK[value as usize]); - *self = Self(v.0); - } - #[inline] - #[must_use] fn into_bool_array(self) -> [bool; 4] { let bitmask = self.bitmask(); [ @@ -118,7 +86,6 @@ impl BVec4A { } #[inline] - #[must_use] fn into_u32_array(self) -> [u32; 4] { let bitmask = self.bitmask(); [ |