Struct retro_pixel::ImageSlice

pub struct ImageSlice<'a, P: 'a> { /* fields omitted */ }

A shared view of some image data.

Methods

impl<'a, P: 'a> ImageSlice<'a, P>

pub unsafe fn from_raw_parts(     width: usize,     height: usize,     pitch: isize,     ptr: *const P ) -> Self

Makes an image slice from the base parts.

Absolutely no checks are performed, you must not lie to this method.

Trait Implementations

impl<'a, P: Debug + 'a> Debug for ImageSlice<'a, P>

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

Formats the value using the given formatter.

impl<'a, P: Clone + 'a> Clone for ImageSlice<'a, P>

fn clone(&self) -> ImageSlice<'a, P>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a, P: PartialEq + 'a> PartialEq for ImageSlice<'a, P>

fn eq(&self, other: &ImageSlice<'a, P>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &ImageSlice<'a, P>) -> bool

This method tests for !=.

impl<'a, P: Eq + 'a> Eq for ImageSlice<'a, P>

impl<'a, P: PartialOrd + 'a> PartialOrd for ImageSlice<'a, P>

fn partial_cmp(&self, other: &ImageSlice<'a, P>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &ImageSlice<'a, P>) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &ImageSlice<'a, P>) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &ImageSlice<'a, P>) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &ImageSlice<'a, P>) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl<'a, P: Ord + 'a> Ord for ImageSlice<'a, P>

fn cmp(&self, other: &ImageSlice<'a, P>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

impl<'a, P: Hash + 'a> Hash for ImageSlice<'a, P>

fn hash<__HP: Hasher>(&self, state: &mut __HP)

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where     H: Hasher,

Feeds a slice of this type into the given [Hasher].

impl<'a, P: 'a> Index<(usize, usize)> for ImageSlice<'a, P>

type Output = P

The returned type after indexing.

fn index(&self, (x, y): (usize, usize)) -> &Self::Output

Performs the indexing (container[index]) operation.

impl<'a, P: 'a> ReadableImage<P> for ImageSlice<'a, P>

fn width(&self) -> usize

Can't exceed isize::MAX

fn height(&self) -> usize

Can't exceed isize::MAX

fn pitch(&self) -> isize

Offset from the start of one row to the start of the next row.

fn as_ptr(&self) -> *const P

Raw const pointer to the data.

fn get(&self, loc: (usize, usize)) -> Option<&P>

Performs an optional indexing by reference, gives None for out of bounds.

fn slice(&self, r: Range<(usize, usize)>) -> ImageSlice<P>

Grabs out a sub-slice of the data.

Important traits for ImageRefIter<'a, P>

impl<'a, P: 'a> Iterator for ImageRefIter<'a, P> type Item = (usize, usize, &'a P);

fn iter(&self) -> ImageRefIter<P>

Lets you iterate any image by reference.

fn to_vecimage(&self) -> VecImage<P> where     Self: Sized,     P: Default + Clone,

This is like to_owned, you get your own version of the data.

fn upscale(&self, scale: usize) -> VecImage<P> where     P: Copy + Default,

Scales up into a new VecImage by the given amount.

impl<'a, P: 'a> IntoIterator for ImageSlice<'a, P>

type Item = (usize, usize, &'a P)

(x, y, pixel_ref)

type IntoIter = ImageRefIter<'a, P>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.