Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 31 insertions, 0 deletions

diff --git a/third_party/rust/wgpu-types/src/math.rs b/third_party/rust/wgpu-types/src/math.rs
new file mode 100644
index 0000000000..593e5d810c
--- /dev/null
+++ b/third_party/rust/wgpu-types/src/math.rs
@@ -0,0 +1,31 @@
+//! Utilitary math functions.
+
+use std::ops::{Add, Rem, Sub};
+
+///
+/// Aligns a `value` to an `alignment`.
+///
+/// Returns the first number greater than or equal to `value` that is also a
+/// multiple of `alignment`. If `value` is already a multiple of `alignment`,
+/// `value` will be returned.
+///
+/// # Examples
+///
+/// ```
+/// # use wgpu_types::math::align_to;
+/// assert_eq!(align_to(253, 16), 256);
+/// assert_eq!(align_to(256, 16), 256);
+/// assert_eq!(align_to(0, 16), 0);
+/// ```
+///
+pub fn align_to<T>(value: T, alignment: T) -> T
+where
+    T: Add<Output = T> + Copy + Default + PartialEq<T> + Rem<Output = T> + Sub<Output = T>,
+{
+    let remainder = value % alignment;
+    if remainder == T::default() {
+        value
+    } else {
+        value + alignment - remainder
+    }
+}