Struct freetype::bitmap::Bitmap

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pub struct Bitmap { /* private fields */ }

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impl Bitmap

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pub unsafe fn from_raw(raw: *const FT_Bitmap) -> Self

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pub fn buffer(&self) -> &[u8]

A typeless pointer to the bitmap buffer. This value should be aligned on 32-bit boundaries in most cases.

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pub fn width(&self) -> i32

The number of pixels in bitmap row.

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pub fn rows(&self) -> i32

The number of bitmap rows.

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pub fn raw(&self) -> &FT_Bitmap

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pub fn pixel_mode(&self) -> FtResult<PixelMode>

The pixel mode, i.e., how pixel bits are stored. See PixelMode for possible values.

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pub fn pitch(&self) -> i32

The pitch’s absolute value is the number of bytes taken by one bitmap row, including padding. However, the pitch is positive when the bitmap has a ‘down’ flow, and negative when it has an ‘up’ flow. In all cases, the pitch is an offset to add to a bitmap pointer in order to go down one row.

Note that ‘padding’ means the alignment of a bitmap to a byte border, and FreeType functions normally align to the smallest possible integer value. For the B/W rasterizer, ‘pitch’ is always an even number.

To change the pitch of a bitmap (say, to make it a multiple of 4), use FT_Bitmap_Convert. Alternatively, you might use callback functions to directly render to the application’s surface; see the file ‘example2.cpp’ in the tutorial for a demonstration.

Auto Trait Implementations§

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impl RefUnwindSafe for Bitmap

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impl !Send for Bitmap

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impl !Sync for Bitmap

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impl Unpin for Bitmap

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impl UnwindSafe for Bitmap

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere 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 Twhere 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> 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 Twhere U: From<T>,

const: unstable · source§

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, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

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 Twhere U: TryFrom<T>,

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

The type returned in the event of a conversion error.
const: unstable · source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.