[−]Struct druid::piet::BitmapTarget
A struct provides a RenderContext and then can have its bitmap extracted.
Implementations
impl<'a> BitmapTarget<'a>
pub fn render_context(&mut self) -> CoreGraphicsContext<'_>
Get a piet RenderContext for the bitmap.
Note: caller is responsible for calling finish on the render
context at the end of rendering.
pub fn to_image_buf(&mut self, fmt: ImageFormat) -> Result<ImageBuf, Error>
Get an in-memory pixel buffer from the bitmap.
pub fn copy_raw_pixels(
&mut self,
fmt: ImageFormat,
buf: &mut [u8]
) -> Result<usize, Error>
&mut self,
fmt: ImageFormat,
buf: &mut [u8]
) -> Result<usize, Error>
Get raw RGBA pixels from the bitmap by copying them into buf. If all the pixels were
copied, returns the number of bytes written. If buf wasn't big enough, returns an error
and doesn't write anything.
pub fn save_to_file<P>(self, path: P) -> Result<(), Error> where
P: AsRef<Path>,
P: AsRef<Path>,
Save bitmap to RGBA PNG file
Auto Trait Implementations
impl<'a> RefUnwindSafe for BitmapTarget<'a>[src]
impl<'a> !Send for BitmapTarget<'a>[src]
impl<'a> !Sync for BitmapTarget<'a>[src]
impl<'a> Unpin for BitmapTarget<'a>[src]
impl<'a> UnwindSafe for BitmapTarget<'a>[src]
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized, [src]
T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized, [src]
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized, [src]
T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T[src]
impl<T> From<T> for T[src]
impl<T, U> Into<U> for T where
U: From<T>, [src]
U: From<T>,
impl<T> RoundFrom<T> for T
pub fn round_from(x: T) -> T
impl<T, U> RoundInto<U> for T where
U: RoundFrom<T>,
U: RoundFrom<T>,
pub fn round_into(self) -> U
impl<T> Same<T> for T
type Output = T
Should always be Self
impl<T, U> TryFrom<U> for T where
U: Into<T>, [src]
U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>, [src]
U: TryFrom<T>,