SamplerOnce

Struct SamplerOnce 

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pub struct SamplerOnce;
Expand description

A texture sampler that assumes all texture coordinates are within bounds.

Out-of-bounds coordinates may cause graphical glitches or runtime panics but not undefined behavior. In particular, if the texture data is a slice of a larger buffer, SamplerOnce may read out of bounds of the slice but not of the backing buffer.

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impl SamplerOnce

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pub fn sample<C: Copy>( &self, tex: &Texture<impl AsSlice2<C>>, tc: TexCoord, ) -> C

Returns the color in tex at tc such that both coordinates are assumed to be in the range 0.0..1.0.

Uses nearest neighbor sampling. Passing out-of-range coordinates to this function is sound (not UB) but is not otherwise specified.

§Panics

May panic if tc is not in the valid range.

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pub fn sample_abs<C: Copy>( &self, tex: &Texture<impl AsSlice2<C>>, tc: TexCoord, ) -> C

Returns the color in tex at tc such that the coordinates are assumed to be in the ranges 0.0..tex.width() and 0.0..tex.height() respectively.

Uses nearest neighbor sampling. Passing out-of-range coordinates to this function is sound (not UB) but is not otherwise specified.

§Panics

May panic if tc is not in the valid range.

Trait Implementations§

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impl Clone for SamplerOnce

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fn clone(&self) -> SamplerOnce

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for SamplerOnce

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Copy for SamplerOnce

Auto Trait Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.