Struct CGImage 

pub struct CGImage { /* private fields */ }

Reference-counted CGImageRef — an immutable bitmap.

Implementations

impl CGImage

pub const unsafe fn from_raw(ptr: *mut c_void) -> CGImage

Wrap a raw CGImageRef pointer — takes ownership without retaining.

Safety

ptr must be a non-null CGImageRef whose ownership the caller is transferring to the returned CGImage.

pub fn width(&self) -> usize

Width in pixels.

pub fn height(&self) -> usize

Height in pixels.

pub fn bits_per_component(&self) -> usize

Bits per component (8, 16, 32).

pub fn bits_per_pixel(&self) -> usize

Bits per pixel.

pub fn bytes_per_row(&self) -> usize

Bytes per row.

pub fn save_png<P>(&self, path: P) -> Result<(), Error>

where P: AsRef<Path>,

Save the image as a PNG file.

Errors

Returns an I/O error if the path contains an interior NUL byte or if the underlying ImageIO export fails.

pub const fn as_ptr(&self) -> *mut c_void

Raw CGImageRef pointer.

Trait Implementations

impl CGImageExt for CGImage

fn rgba_data(&self) -> Result<Vec<u8>, SCError>

Get raw RGBA pixel data.

fn bgra_data(&self) -> Result<Vec<u8>, SCError>

Get raw BGRA pixel data.

fn rgba_data_into(&self, dest: &mut [u8]) -> Result<usize, SCError>

Render the image’s RGBA bytes into a caller-supplied buffer.

fn bgra_data_into(&self, dest: &mut [u8]) -> Result<usize, SCError>

Render the image’s BGRA bytes into a caller-supplied buffer.

fn rgba_data_into_strided( &self, dest: &mut [u8], dest_bytes_per_row: usize, ) -> Result<usize, SCError>

Render the image’s RGBA bytes into a caller-supplied buffer using an explicit row stride (dest_bytes_per_row).

fn bgra_data_into_strided( &self, dest: &mut [u8], dest_bytes_per_row: usize, ) -> Result<usize, SCError>

Render the image’s BGRA bytes into a caller-supplied buffer using an explicit row stride (dest_bytes_per_row).

fn save(&self, path: &str, format: ImageFormat) -> Result<(), SCError>

Save the image to a file in the specified format.

impl Clone for CGImage

fn clone(&self) -> CGImage

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CGImage

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

Formats the value using the given formatter.

impl Drop for CGImage

fn drop(&mut self)

Executes the destructor for this type.

impl Send for CGImage

impl Sync for CGImage