Struct PixfmtRgba32CompOp 

pub struct PixfmtRgba32CompOp<'a> { /* private fields */ }

RGBA32 pixel format with runtime-selectable SVG compositing operations.

Port of C++ pixfmt_custom_blend_rgba<comp_op_adaptor_rgba<rgba8, order_rgba>, rendering_buffer>. Wraps a RowAccessor and stores the current compositing operation. All blending is dispatched through comp_op_blend().

Implementations

impl<'a> PixfmtRgba32CompOp<'a>

pub fn new(rbuf: &'a mut RowAccessor) -> Self

pub fn new_with_op(rbuf: &'a mut RowAccessor, op: CompOp) -> Self

pub fn comp_op(&self) -> CompOp

pub fn set_comp_op(&mut self, op: CompOp)

pub fn clear(&mut self, c: &Rgba8)

Clear the entire buffer to a solid color.

Trait Implementations

impl<'a> PixelFormat for PixfmtRgba32CompOp<'a>

type ColorType = Rgba8

fn width(&self) -> u32

fn height(&self) -> u32

fn pixel(&self, x: i32, y: i32) -> Rgba8

Get the pixel color at (x, y).

fn copy_pixel(&mut self, x: i32, y: i32, c: &Rgba8)

Copy (overwrite) a single pixel at (x, y) with color c.

fn copy_hline(&mut self, x: i32, y: i32, len: u32, c: &Rgba8)

Copy (overwrite) a horizontal line of len pixels with color c.

fn blend_pixel(&mut self, x: i32, y: i32, c: &Rgba8, cover: CoverType)

Blend a single pixel at (x, y) with color c and coverage cover.

fn blend_hline(&mut self, x: i32, y: i32, len: u32, c: &Rgba8, cover: CoverType)

Blend a horizontal line of len pixels at (x, y) with uniform color and coverage.

fn blend_solid_hspan( &mut self, x: i32, y: i32, len: u32, c: &Rgba8, covers: &[CoverType], )

Blend a horizontal span of len pixels with per-pixel coverage values.

fn blend_color_hspan( &mut self, x: i32, y: i32, len: u32, colors: &[Rgba8], covers: &[CoverType], cover: CoverType, )

Blend a horizontal span with per-pixel colors and optional per-pixel coverage.