Struct RasterizerSlClipInt 

pub struct RasterizerSlClipInt { /* private fields */ }

Scanline rasterizer clipping policy that clips line segments against a viewport rectangle, then converts to 24.8 fixed-point coordinates.

Port of C++ rasterizer_sl_clip<ras_conv_int>.

Implementations

impl RasterizerSlClipInt

pub fn new() -> Self

pub fn reset_clipping(&mut self)

Disable clipping.

pub fn clip_box(&mut self, x1: i32, y1: i32, x2: i32, y2: i32)

Set the clipping rectangle in 24.8 fixed-point coordinates.

pub fn move_to(&mut self, x1: i32, y1: i32)

Record a move_to in 24.8 fixed-point coordinates.

pub fn move_to_d(&mut self, x: f64, y: f64)

Record a move_to from double coordinates (upscales to 24.8).

pub fn line_to(&mut self, ras: &mut RasterizerCellsAa, x2: i32, y2: i32)

Clip and emit a line segment to the cell rasterizer.

Implements the 13-case clipping switch from C++ line_to.

pub fn line_to_d(&mut self, ras: &mut RasterizerCellsAa, x: f64, y: f64)

Emit a line_to from double coordinates (upscales to 24.8).

Trait Implementations

impl Default for RasterizerSlClipInt

fn default() -> Self

Returns the “default value” for a type.