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use std::convert::TryFrom;
use std::fmt;
#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]
pub struct Version {
pub major: u32,
pub minor: u32,
pub patch: u32,
}
impl Version {
pub const V1_0: Version = Version::major_minor(1, 0);
pub const V1_1: Version = Version::major_minor(1, 1);
pub const V1_2: Version = Version::major_minor(1, 2);
pub const V1_3: Version = Version::major_minor(1, 3);
pub const V1_4: Version = Version::major_minor(1, 4);
pub const V1_5: Version = Version::major_minor(1, 5);
#[inline]
pub const fn major_minor(major: u32, minor: u32) -> Version {
Version {
major,
minor,
patch: 0,
}
}
}
impl Default for Version {
fn default() -> Self {
Self::V1_0
}
}
impl From<u32> for Version {
#[inline]
fn from(val: u32) -> Self {
Version {
major: ash::vk::api_version_major(val),
minor: ash::vk::api_version_minor(val),
patch: ash::vk::api_version_patch(val),
}
}
}
impl TryFrom<Version> for u32 {
type Error = ();
#[inline]
fn try_from(val: Version) -> Result<Self, Self::Error> {
if val.major <= 0x3ff && val.minor <= 0x3ff && val.patch <= 0xfff {
Ok(ash::vk::make_api_version(
0, val.major, val.minor, val.patch,
))
} else {
Err(())
}
}
}
impl fmt::Debug for Version {
fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
write!(formatter, "{}.{}.{}", self.major, self.minor, self.patch)
}
}
impl fmt::Display for Version {
fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
fmt::Debug::fmt(self, formatter)
}
}
#[cfg(test)]
mod tests {
use super::Version;
use std::convert::TryFrom;
#[test]
fn into_vk_version() {
let version = Version {
major: 1,
minor: 0,
patch: 0,
};
assert_eq!(u32::try_from(version).unwrap(), 0x400000);
}
#[test]
fn greater_major() {
let v1 = Version {
major: 1,
minor: 0,
patch: 0,
};
let v2 = Version {
major: 2,
minor: 0,
patch: 0,
};
assert!(v2 > v1);
}
#[test]
fn greater_minor() {
let v1 = Version {
major: 1,
minor: 1,
patch: 0,
};
let v2 = Version {
major: 1,
minor: 3,
patch: 0,
};
assert!(v2 > v1);
}
#[test]
fn greater_patch() {
let v1 = Version {
major: 1,
minor: 0,
patch: 4,
};
let v2 = Version {
major: 1,
minor: 0,
patch: 5,
};
assert!(v2 > v1);
}
}