Struct RawImage 

#[repr(C)]
pub struct RawImage {
    pub pixels: RawImageData,
    pub width: usize,
    pub height: usize,
    pub premultiplied_alpha: bool,
    pub data_format: RawImageFormat,
    pub tag: U8Vec,
}

Fields

pixels: RawImageData

width: usize

height: usize

premultiplied_alpha: bool

data_format: RawImageFormat

tag: U8Vec

Implementations

impl RawImage

pub fn paint_dot(&mut self, cx: f32, cy: f32, brush: Brush)

CPU painting: stamp one brush dab centered at (cx, cy) in pixel coordinates, alpha-over compositing a radial-falloff disc. Only 8-bit RGBA8/BGRA8 images are painted (other formats are left untouched). This is the CPU mirror of the GPU brush shader.

pub fn paint_stroke(&mut self, x0: f32, y0: f32, x1: f32, y1: f32, brush: Brush)

CPU painting: stamp a stroke by spacing dabs along the segment (x0,y0)->(x1,y1). Call once per pointer move with the previous and current positions for a continuous line.

impl RawImage

pub fn null_image() -> Self

Returns a null / empty image

pub fn allocate_mask(size: LayoutSize) -> Self

Allocates a width * height, single-channel mask, used for drawing CPU image masks

pub fn into_loaded_image_source(self) -> Option<(ImageData, ImageDescriptor)>

Encodes a RawImage as BGRA8 bytes and premultiplies it if the alpha is not premultiplied

Returns None if the width * height * BPP does not match

TODO: autovectorization fails spectacularly, need to manually optimize!

Trait Implementations

impl Clone for RawImage

fn clone(&self) -> RawImage

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RawImage

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

Formats the value using the given formatter.

impl PartialEq for RawImage

fn eq(&self, other: &RawImage) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl PartialOrd for RawImage

fn partial_cmp(&self, other: &RawImage) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for RawImage