Struct PngWriter 

pub struct PngWriter { /* private fields */ }

Encodes a Texture into PNG format.

In addition to single-image PNG, the writer can emit an animated PNG (APNG) from a sequence of frames via writeAnimated(). Each frame is written full-canvas with no inter-frame optimisation.

Implementations

impl PngWriter

pub fn new() -> Self

Panics

Panics if the native allocation fails.

pub fn write(&mut self, texture: &Texture) -> Bytes

Serialize the texture to a PNG byte buffer.

pub fn write_animated( &mut self, frames: &[&PngApngFrame], opts: &PngApngSaveOptions, ) -> Bytes

Serialize a sequence of frames into an animated PNG (APNG) byte buffer.

All frames must share the same dimensions (frame 0 defines the canvas). Each frame is emitted full-canvas with disposal NONE and blend SOURCE. Returns an empty buffer on failure (lenient mode). @param frames Ordered animation frames; must be non-empty. @param opts Encoding options (loop count).

pub fn has_issues(&self) -> bool

@return true if the last write produced any issues.

pub fn issues(&self) -> Vec<String>

@return accumulated issues from the last write call.

Trait Implementations

impl Debug for PngWriter

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

Formats the value using the given formatter.

impl Default for PngWriter

fn default() -> Self

Returns the “default value” for a type.

impl Drop for PngWriter

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.

impl Send for PngWriter