bendns' repos / fimg
fast image operations
Diffstat (limited to 'src/drawing/line.rs')
-rw-r--r--src/drawing/line.rs71
1 files changed, 0 insertions, 71 deletions
diff --git a/src/drawing/line.rs b/src/drawing/line.rs
deleted file mode 100644
index 24c0df4..0000000
--- a/src/drawing/line.rs
+++ /dev/null
@@ -1,71 +0,0 @@
-//! adds a `line` function to Image
-use crate::Image;
-use vecto::Vec2;
-
-impl<T: AsMut<[u8]> + AsRef<[u8]>, const CHANNELS: usize> Image<T, CHANNELS> {
- /// Draw a half-open line from point a to point b.
- ///
- /// Points not in bounds will not be included.
- pub fn line(&mut self, a: (i32, i32), b: (i32, i32), color: [u8; CHANNELS]) {
- clipline::Clip::<i32>::from_size(self.width(), self.height())
- .unwrap() // fixme: panics if width or height > i32::MAX + 1
- .line_b_proj(a.0, a.1, b.0, b.1)
- .into_iter()
- .flatten()
- .for_each(|(x, y)| {
- // SAFETY: x, y are clipped to self.
- unsafe { self.set_pixel(x, y, &color) }
- });
- }
-
- /// Draw a thick line from point a to point b.
- /// Prefer [`Image::line`] when possible.
- ///
- /// Points not in bounds will not be included.
- ///
- /// Uses [`Image::quad`].
- /// ```
- /// # use fimg::Image;
- /// let mut i = Image::alloc(10, 10);
- /// i.thick_line((2.0, 2.0), (8.0, 8.0), 2.0, [255]);
- /// # assert_eq!(i.buffer(), b"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\xff\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\xff\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\xff\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\xff\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\xff\x00\x00\x00\x00\x00\x00\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00");
- /// ```
- pub fn thick_line(
- &mut self,
- a: impl Into<Vec2>,
- b: impl Into<Vec2>,
- stroke: f32,
- color: [u8; CHANNELS],
- ) {
- let a = a.into();
- let b = b.into();
- let w = (a - b).orthogonal().normalized() * (stroke / 2.0);
- macro_rules! p {
- ($x:expr) => {
- #[allow(clippy::cast_possible_truncation)]
- ($x.x.round() as i32, $x.y.round() as i32)
- };
- }
- // order:
- // v x1 v x2
- // [ ]
- // ^ x3 ^ x4
- self.quad(
- p!(a - w), // x1
- p!(b - w), // x2
- p!(b + w), // x3
- p!(a + w), // x4
- color,
- );
- }
-}
-
-#[test]
-fn line() {
- let mut a = Image::build(5, 5).alloc();
- a.as_mut().line((0, 1), (6, 4), [255]);
- assert_eq!(
- a.buffer,
- b"\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\xff\xff\x00\x00\x00\x00\x00\xff\xff\x00\x00\x00\x00\x00"
- )
-}