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Planar64::try_from(f32|f64)

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Quaternions 2023-10-13 14:41:30 -07:00
parent 2f33a28c95
commit fcf4d05baa
1 changed files with 51 additions and 0 deletions
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51
src/integer.rs
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@ -399,6 +399,47 @@ impl From<Ratio64> for Planar64{
Self(Self::ONE.0*ratio.num/ratio.den.get() as i64) Self(Self::ONE.0*ratio.num/ratio.den.get() as i64)
} }
} }
#[derive(Debug)]
enum Planar64TryFromFloatError{
Nan,
Infinite,
Subnormal,
HighlyNegativeExponent(i16),
HighlyPositiveExponent(i16),
}
fn planar64_from_mes((m,e,s):(u64,i16,i8))->Result<Planar64,Planar64TryFromFloatError>{
if e< -32{
Err(Planar64TryFromFloatError::HighlyNegativeExponent(e))
}else if e<32-52{
Ok(Planar64((m as i64)*(s as i64)<<e))
}else{
Err(Planar64TryFromFloatError::HighlyPositiveExponent(e))
}
}
impl TryFrom<f32> for Planar64{
type Error=Planar64TryFromFloatError;
fn try_from(value:f32)->Result<Self,Self::Error>{
match value.classify(){
std::num::FpCategory::Nan=>Err(Self::Error::Nan),
std::num::FpCategory::Infinite=>Err(Self::Error::Infinite),
std::num::FpCategory::Zero=>Ok(Self::ZERO),
std::num::FpCategory::Subnormal=>Err(Self::Error::Subnormal),
std::num::FpCategory::Normal=>planar64_from_mes(integer_decode_f32(value)),
}
}
}
impl TryFrom<f64> for Planar64{
type Error=Planar64TryFromFloatError;
fn try_from(value:f64)->Result<Self,Self::Error>{
match value.classify(){
std::num::FpCategory::Nan=>Err(Self::Error::Nan),
std::num::FpCategory::Infinite=>Err(Self::Error::Infinite),
std::num::FpCategory::Zero=>Ok(Self::ZERO),
std::num::FpCategory::Subnormal=>Err(Self::Error::Subnormal),
std::num::FpCategory::Normal=>planar64_from_mes(integer_decode_f64(value)),
}
}
}
impl std::ops::Neg for Planar64{ impl std::ops::Neg for Planar64{
type Output=Planar64; type Output=Planar64;
#[inline] #[inline]
@ -544,6 +585,16 @@ impl Into<glam::Vec3> for Planar64Vec3{
) )
} }
} }
impl TryFrom<[f32;3]> for Planar64Vec3{
type Error=Planar64TryFromFloatError;
fn try_from(value:[f32;3])->Result<Self,Self::Error>{
Ok(Self(glam::i64vec3(
Planar64::try_from(value[0])?.0,
Planar64::try_from(value[1])?.0,
Planar64::try_from(value[2])?.0,
)))
}
}
impl std::ops::Neg for Planar64Vec3{ impl std::ops::Neg for Planar64Vec3{
type Output=Planar64Vec3; type Output=Planar64Vec3;
#[inline] #[inline]