[−][src]Struct ndless_freetype::bitmap::Bitmap
Methods
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]
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A typeless pointer to the bitmap buffer. This value should be aligned on 32-bit boundaries in most cases.
pub fn width(&self) -> i32
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The number of pixels in bitmap row.
pub fn rows(&self) -> i32
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The number of bitmap rows.
pub fn raw(&self) -> &FT_Bitmap
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pub fn pixel_mode(&self) -> FtResult<PixelMode>
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The pixel mode, i.e., how pixel bits are stored. See PixelMode
for
possible values.
pub fn pitch(&self) -> i32
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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<T> From for T
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impl<T, U> TryFrom for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
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impl<T, U> TryInto for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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T: ?Sized,
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T: ?Sized,
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T: 'static + ?Sized,
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T: 'static + ?Sized,