ab_glyph_rasterizer-0.1.7/.cargo_vcs_info.json0000644000000001500000000000100150740ustar { "git": { "sha1": "5b0655514e50e77a404c2cd53d162355e5697e83" }, "path_in_vcs": "rasterizer" }ab_glyph_rasterizer-0.1.7/CHANGELOG.md000064400000000000000000000017171046102023000155070ustar 00000000000000# 0.1.7 * Fix x86, x86_64 no_std builds, require `std` feature for runtime detected SIMD. # 0.1.6 * Add runtime detected AVX2 or SSE4.2 line drawing. Improves performance on compatible x86_64 CPUs. # 0.1.5 * Remove cap of `1.0` for coverage values returned by `for_each_pixel` now `>= 1.0` means fully covered. This allows a minor reduction in operations / performance boost. # 0.1.4 * Add `Rasterizer::reset`, `Rasterizer::clear` methods to allow allocation reuse. # 0.1.3 * Fix index oob panic scenario. # 0.1.2 * For `Point` implement `Sub`, `Add`, `SubAssign`, `AddAssign`, `PartialEq`, `PartialOrd`, `From<(x, y)>`, `From<[x, y]>` for easier use downstream. * Switch `Point` `Debug` implementation to output `point(1.2, 3.4)` smaller representation referring to the `point` fn. # 0.1.1 * Add explicit compile error when building no_std without the "libm" feature. # 0.1 * Implement zero dependency coverage rasterization for lines, quadratic & cubic beziers. ab_glyph_rasterizer-0.1.7/Cargo.toml0000644000000016550000000000100131050ustar # THIS FILE IS AUTOMATICALLY GENERATED BY CARGO # # When uploading crates to the registry Cargo will automatically # "normalize" Cargo.toml files for maximal compatibility # with all versions of Cargo and also rewrite `path` dependencies # to registry (e.g., crates.io) dependencies. # # If you are reading this file be aware that the original Cargo.toml # will likely look very different (and much more reasonable). # See Cargo.toml.orig for the original contents. [package] edition = "2018" name = "ab_glyph_rasterizer" version = "0.1.7" authors = ["Alex Butler "] description = "Coverage rasterization for lines, quadratic & cubic beziers" readme = "README.md" keywords = [ "text", "ttf", "otf", "font", ] license = "Apache-2.0" repository = "https://github.com/alexheretic/ab-glyph" [dependencies.libm] version = "0.2.1" optional = true [dev-dependencies] [features] default = ["std"] std = [] ab_glyph_rasterizer-0.1.7/Cargo.toml.orig000064400000000000000000000010401046102023000165520ustar 00000000000000[package] name = "ab_glyph_rasterizer" version = "0.1.7" authors = ["Alex Butler "] edition = "2018" description = "Coverage rasterization for lines, quadratic & cubic beziers" repository = "https://github.com/alexheretic/ab-glyph" keywords = ["text", "ttf", "otf", "font"] license = "Apache-2.0" readme = "README.md" [dependencies] # no_std float stuff libm = { version = "0.2.1", optional = true } [dev-dependencies] # don't add any, instead use ./dev [features] default = ["std"] # Activates usage of std. std = [] ab_glyph_rasterizer-0.1.7/LICENSE000064400000000000000000000261151046102023000147020ustar 00000000000000 Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. 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See the License for the specific language governing permissions and limitations under the License. ab_glyph_rasterizer-0.1.7/README.md000064400000000000000000000055421046102023000151550ustar 00000000000000ab_glyph_rasterizer [![crates.io](https://img.shields.io/crates/v/ab_glyph_rasterizer.svg)](https://crates.io/crates/ab_glyph_rasterizer) [![Documentation](https://docs.rs/ab_glyph_rasterizer/badge.svg)](https://docs.rs/ab_glyph_rasterizer) =================== Coverage rasterization for lines, quadratic & cubic beziers. Useful for drawing .otf font glyphs. Inspired by [font-rs](https://github.com/raphlinus/font-rs) & [stb_truetype](https://github.com/nothings/stb/blob/master/stb_truetype.h). ## Example ```rust let mut rasterizer = ab_glyph_rasterizer::Rasterizer::new(106, 183); // draw a 300px 'ę' character rasterizer.draw_cubic(point(103.0, 163.5), point(86.25, 169.25), point(77.0, 165.0), point(82.25, 151.5)); rasterizer.draw_cubic(point(82.25, 151.5), point(86.75, 139.75), point(94.0, 130.75), point(102.0, 122.0)); rasterizer.draw_line(point(102.0, 122.0), point(100.25, 111.25)); rasterizer.draw_cubic(point(100.25, 111.25), point(89.0, 112.75), point(72.75, 114.25), point(58.5, 114.25)); rasterizer.draw_cubic(point(58.5, 114.25), point(30.75, 114.25), point(18.5, 105.25), point(16.75, 72.25)); rasterizer.draw_line(point(16.75, 72.25), point(77.0, 72.25)); rasterizer.draw_cubic(point(77.0, 72.25), point(97.0, 72.25), point(105.25, 60.25), point(104.75, 38.5)); rasterizer.draw_cubic(point(104.75, 38.5), point(104.5, 13.5), point(89.0, 0.75), point(54.25, 0.75)); rasterizer.draw_cubic(point(54.25, 0.75), point(16.0, 0.75), point(0.0, 16.75), point(0.0, 64.0)); rasterizer.draw_cubic(point(0.0, 64.0), point(0.0, 110.5), point(16.0, 128.0), point(56.5, 128.0)); rasterizer.draw_cubic(point(56.5, 128.0), point(66.0, 128.0), point(79.5, 127.0), point(90.0, 125.0)); rasterizer.draw_cubic(point(90.0, 125.0), point(78.75, 135.25), point(73.25, 144.5), point(70.75, 152.0)); rasterizer.draw_cubic(point(70.75, 152.0), point(64.5, 169.0), point(75.5, 183.0), point(105.0, 170.5)); rasterizer.draw_line(point(105.0, 170.5), point(103.0, 163.5)); rasterizer.draw_cubic(point(55.0, 14.5), point(78.5, 14.5), point(88.5, 21.75), point(88.75, 38.75)); rasterizer.draw_cubic(point(88.75, 38.75), point(89.0, 50.75), point(85.75, 59.75), point(73.5, 59.75)); rasterizer.draw_line(point(73.5, 59.75), point(16.5, 59.75)); rasterizer.draw_cubic(point(16.5, 59.75), point(17.25, 25.5), point(27.0, 14.5), point(55.0, 14.5)); rasterizer.draw_line(point(55.0, 14.5), point(55.0, 14.5)); // iterate over the resultant pixel alphas, e.g. save pixel to a buffer rasterizer.for_each_pixel(|index, alpha| { // ... }); ``` Rendering the resultant pixel alphas as 8-bit grey produces: ![reference_otf_tailed_e](https://user-images.githubusercontent.com/2331607/78987793-ee95f480-7b26-11ea-91fb-e9f359d766f8.png) ## no_std no_std environments are supported using `alloc` & [`libm`](https://github.com/rust-lang/libm). ```toml ab_glyph_rasterizer = { default-features = false, features = ["libm"] } ``` ab_glyph_rasterizer-0.1.7/src/geometry.rs000064400000000000000000000070511046102023000166630ustar 00000000000000#[cfg(all(feature = "libm", not(feature = "std")))] use crate::nostd_float::FloatExt; /// An (x, y) coordinate. /// /// # Example /// ``` /// use ab_glyph_rasterizer::{point, Point}; /// let p: Point = point(0.1, 23.2); /// ``` #[derive(Clone, Copy, Default, PartialEq, PartialOrd)] pub struct Point { pub x: f32, pub y: f32, } impl core::fmt::Debug for Point { fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result { write!(f, "point({:?}, {:?})", self.x, self.y) } } impl Point { #[inline] pub(crate) fn distance_to(self, other: Point) -> f32 { let d = other - self; (d.x * d.x + d.y * d.y).sqrt() } } /// [`Point`](struct.Point.html) constructor. /// /// # Example /// ``` /// # use ab_glyph_rasterizer::{point, Point}; /// let p = point(0.1, 23.2); /// ``` #[inline] pub fn point(x: f32, y: f32) -> Point { Point { x, y } } /// Linear interpolation between points. #[inline] pub(crate) fn lerp(t: f32, p0: Point, p1: Point) -> Point { point(p0.x + t * (p1.x - p0.x), p0.y + t * (p1.y - p0.y)) } impl core::ops::Sub for Point { type Output = Point; /// Subtract rhs.x from x, rhs.y from y. /// /// ``` /// # use ab_glyph_rasterizer::*; /// let p1 = point(1.0, 2.0) - point(2.0, 1.5); /// /// assert!((p1.x - -1.0).abs() <= core::f32::EPSILON); /// assert!((p1.y - 0.5).abs() <= core::f32::EPSILON); /// ``` #[inline] fn sub(self, rhs: Point) -> Point { point(self.x - rhs.x, self.y - rhs.y) } } impl core::ops::Add for Point { type Output = Point; /// Add rhs.x to x, rhs.y to y. /// /// ``` /// # use ab_glyph_rasterizer::*; /// let p1 = point(1.0, 2.0) + point(2.0, 1.5); /// /// assert!((p1.x - 3.0).abs() <= core::f32::EPSILON); /// assert!((p1.y - 3.5).abs() <= core::f32::EPSILON); /// ``` #[inline] fn add(self, rhs: Point) -> Point { point(self.x + rhs.x, self.y + rhs.y) } } impl core::ops::AddAssign for Point { /// ``` /// # use ab_glyph_rasterizer::*; /// let mut p1 = point(1.0, 2.0); /// p1 += point(2.0, 1.5); /// /// assert!((p1.x - 3.0).abs() <= core::f32::EPSILON); /// assert!((p1.y - 3.5).abs() <= core::f32::EPSILON); /// ``` #[inline] fn add_assign(&mut self, other: Self) { self.x += other.x; self.y += other.y; } } impl core::ops::SubAssign for Point { /// ``` /// # use ab_glyph_rasterizer::*; /// let mut p1 = point(1.0, 2.0); /// p1 -= point(2.0, 1.5); /// /// assert!((p1.x - -1.0).abs() <= core::f32::EPSILON); /// assert!((p1.y - 0.5).abs() <= core::f32::EPSILON); /// ``` #[inline] fn sub_assign(&mut self, other: Self) { self.x -= other.x; self.y -= other.y; } } impl> From<(F, F)> for Point { /// ``` /// # use ab_glyph_rasterizer::*; /// let p: Point = (23_f32, 34.5_f32).into(); /// let p2: Point = (5u8, 44u8).into(); /// ``` #[inline] fn from((x, y): (F, F)) -> Self { point(x.into(), y.into()) } } impl> From<[F; 2]> for Point { /// ``` /// # use ab_glyph_rasterizer::*; /// let p: Point = [23_f32, 34.5].into(); /// let p2: Point = [5u8, 44].into(); /// ``` #[inline] fn from([x, y]: [F; 2]) -> Self { point(x.into(), y.into()) } } #[cfg(test)] mod test { use super::*; #[test] fn distance_to() { let distance = point(0.0, 0.0).distance_to(point(3.0, 4.0)); assert!((distance - 5.0).abs() <= core::f32::EPSILON); } } ab_glyph_rasterizer-0.1.7/src/lib.rs000064400000000000000000000020151046102023000155710ustar 00000000000000//! Coverage rasterization for lines, quadratic & cubic beziers. //! Useful for drawing .otf font glyphs. //! //! ``` //! use ab_glyph_rasterizer::Rasterizer; //! # let (width, height) = (1, 1); //! let mut rasterizer = Rasterizer::new(width, height); //! //! // draw outlines //! # let [l0, l1, q0, q1, q2, c0, c1, c2, c3] = [ab_glyph_rasterizer::point(0.0, 0.0); 9]; //! rasterizer.draw_line(l0, l1); //! rasterizer.draw_quad(q0, q1, q2); //! rasterizer.draw_cubic(c0, c1, c2, c3); //! //! // iterate over the resultant pixel alphas, e.g. save pixel to a buffer //! rasterizer.for_each_pixel(|index, alpha| { //! // ... //! }); //! ``` #![cfg_attr(not(feature = "std"), no_std)] #[cfg(not(feature = "std"))] #[macro_use] extern crate alloc; #[cfg(all(feature = "libm", not(feature = "std")))] mod nostd_float; #[cfg(not(any(feature = "libm", feature = "std")))] compile_error!("You need to activate either the `std` or `libm` feature."); mod geometry; mod raster; pub use geometry::{point, Point}; pub use raster::Rasterizer; ab_glyph_rasterizer-0.1.7/src/nostd_float.rs000064400000000000000000000011331046102023000173370ustar 00000000000000/// Basic required float operations. pub(crate) trait FloatExt { fn floor(self) -> Self; fn ceil(self) -> Self; fn sqrt(self) -> Self; fn round(self) -> Self; fn abs(self) -> Self; } impl FloatExt for f32 { #[inline] fn floor(self) -> Self { libm::floorf(self) } #[inline] fn ceil(self) -> Self { libm::ceilf(self) } #[inline] fn sqrt(self) -> Self { libm::sqrtf(self) } #[inline] fn round(self) -> Self { libm::roundf(self) } #[inline] fn abs(self) -> Self { libm::fabsf(self) } } ab_glyph_rasterizer-0.1.7/src/raster.rs000064400000000000000000000270441046102023000163340ustar 00000000000000// Forked/repurposed from `font-rs` code: https://github.com/raphlinus/font-rs // Copyright 2015 Google Inc. All rights reserved. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. // // Modifications copyright (C) 2020 Alex Butler // // Cubic bezier drawing adapted from stb_truetype: https://github.com/nothings/stb #[cfg(all(feature = "libm", not(feature = "std")))] use crate::nostd_float::FloatExt; #[cfg(not(feature = "std"))] use alloc::vec::Vec; use crate::geometry::{lerp, Point}; type DrawLineFn = unsafe fn(&mut Rasterizer, Point, Point); /// Coverage rasterizer for lines, quadratic & cubic beziers. pub struct Rasterizer { width: usize, height: usize, a: Vec, draw_line_fn: DrawLineFn, } impl Rasterizer { /// Allocates a new rasterizer that can draw onto a `width` x `height` alpha grid. /// /// ``` /// use ab_glyph_rasterizer::Rasterizer; /// let mut rasterizer = Rasterizer::new(14, 38); /// ``` pub fn new(width: usize, height: usize) -> Self { // runtime detect optimal simd impls #[cfg(all(feature = "std", any(target_arch = "x86", target_arch = "x86_64")))] let draw_line_fn: DrawLineFn = if is_x86_feature_detected!("avx2") { draw_line_avx2 } else if is_x86_feature_detected!("sse4.2") { draw_line_sse4_2 } else { Self::draw_line_scalar }; #[cfg(any( not(feature = "std"), not(any(target_arch = "x86", target_arch = "x86_64")) ))] let draw_line_fn: DrawLineFn = Self::draw_line_scalar; Self { width, height, a: vec![0.0; width * height + 4], draw_line_fn, } } /// Resets the rasterizer to an empty `width` x `height` alpha grid. This method behaves as if /// the Rasterizer were re-created, with the advantage of not allocating if the total number of /// pixels of the grid does not increase. /// /// ``` /// # use ab_glyph_rasterizer::Rasterizer; /// # let mut rasterizer = Rasterizer::new(14, 38); /// rasterizer.reset(12, 24); /// assert_eq!(rasterizer.dimensions(), (12, 24)); /// ``` pub fn reset(&mut self, width: usize, height: usize) { self.width = width; self.height = height; self.a.truncate(0); self.a.resize(width * height + 4, 0.0); } /// Clears the rasterizer. This method behaves as if the Rasterizer were re-created with the same /// dimensions, but does not perform an allocation. /// /// ``` /// # use ab_glyph_rasterizer::Rasterizer; /// # let mut rasterizer = Rasterizer::new(14, 38); /// rasterizer.clear(); /// ``` pub fn clear(&mut self) { for px in &mut self.a { *px = 0.0; } } /// Returns the dimensions the rasterizer was built to draw to. /// /// ``` /// # use ab_glyph_rasterizer::*; /// let rasterizer = Rasterizer::new(9, 8); /// assert_eq!((9, 8), rasterizer.dimensions()); /// ``` pub fn dimensions(&self) -> (usize, usize) { (self.width, self.height) } /// Adds a straight line from `p0` to `p1` to the outline. /// /// ``` /// # use ab_glyph_rasterizer::*; /// # let mut rasterizer = Rasterizer::new(9, 8); /// rasterizer.draw_line(point(0.0, 0.48), point(1.22, 0.48)); /// ``` pub fn draw_line(&mut self, p0: Point, p1: Point) { unsafe { (self.draw_line_fn)(self, p0, p1) } } #[inline(always)] // must inline for simd versions fn draw_line_scalar(&mut self, p0: Point, p1: Point) { if (p0.y - p1.y).abs() <= core::f32::EPSILON { return; } let (dir, p0, p1) = if p0.y < p1.y { (1.0, p0, p1) } else { (-1.0, p1, p0) }; let dxdy = (p1.x - p0.x) / (p1.y - p0.y); let mut x = p0.x; let y0 = p0.y as usize; // note: implicit max of 0 because usize if p0.y < 0.0 { x -= p0.y * dxdy; } for y in y0..self.height.min(p1.y.ceil() as usize) { let linestart = y * self.width; let dy = ((y + 1) as f32).min(p1.y) - (y as f32).max(p0.y); let xnext = x + dxdy * dy; let d = dy * dir; let (x0, x1) = if x < xnext { (x, xnext) } else { (xnext, x) }; let x0floor = x0.floor(); let x0i = x0floor as i32; let x1ceil = x1.ceil(); let x1i = x1ceil as i32; if x1i <= x0i + 1 { let xmf = 0.5 * (x + xnext) - x0floor; let linestart_x0i = linestart as isize + x0i as isize; if linestart_x0i < 0 { continue; // oob index } self.a[linestart_x0i as usize] += d - d * xmf; self.a[linestart_x0i as usize + 1] += d * xmf; } else { let s = (x1 - x0).recip(); let x0f = x0 - x0floor; let a0 = 0.5 * s * (1.0 - x0f) * (1.0 - x0f); let x1f = x1 - x1ceil + 1.0; let am = 0.5 * s * x1f * x1f; let linestart_x0i = linestart as isize + x0i as isize; if linestart_x0i < 0 { continue; // oob index } self.a[linestart_x0i as usize] += d * a0; if x1i == x0i + 2 { self.a[linestart_x0i as usize + 1] += d * (1.0 - a0 - am); } else { let a1 = s * (1.5 - x0f); self.a[linestart_x0i as usize + 1] += d * (a1 - a0); for xi in x0i + 2..x1i - 1 { self.a[linestart + xi as usize] += d * s; } let a2 = a1 + (x1i - x0i - 3) as f32 * s; self.a[linestart + (x1i - 1) as usize] += d * (1.0 - a2 - am); } self.a[linestart + x1i as usize] += d * am; } x = xnext; } } /// Adds a quadratic Bézier curve from `p0` to `p2` to the outline using `p1` as the control. /// /// ``` /// # use ab_glyph_rasterizer::*; /// # let mut rasterizer = Rasterizer::new(14, 38); /// rasterizer.draw_quad(point(6.2, 34.5), point(7.2, 34.5), point(9.2, 34.0)); /// ``` pub fn draw_quad(&mut self, p0: Point, p1: Point, p2: Point) { let devx = p0.x - 2.0 * p1.x + p2.x; let devy = p0.y - 2.0 * p1.y + p2.y; let devsq = devx * devx + devy * devy; if devsq < 0.333 { self.draw_line(p0, p2); return; } let tol = 3.0; let n = 1 + (tol * devsq).sqrt().sqrt().floor() as usize; let mut p = p0; let nrecip = (n as f32).recip(); let mut t = 0.0; for _i in 0..n - 1 { t += nrecip; let pn = lerp(t, lerp(t, p0, p1), lerp(t, p1, p2)); self.draw_line(p, pn); p = pn; } self.draw_line(p, p2); } /// Adds a cubic Bézier curve from `p0` to `p3` to the outline using `p1` as the control /// at the beginning of the curve and `p2` at the end of the curve. /// /// ``` /// # use ab_glyph_rasterizer::*; /// # let mut rasterizer = Rasterizer::new(12, 20); /// rasterizer.draw_cubic( /// point(10.3, 16.4), /// point(8.6, 16.9), /// point(7.7, 16.5), /// point(8.2, 15.2), /// ); /// ``` pub fn draw_cubic(&mut self, p0: Point, p1: Point, p2: Point, p3: Point) { self.tesselate_cubic(p0, p1, p2, p3, 0); } // stb_truetype style cubic approximation by lines. fn tesselate_cubic(&mut self, p0: Point, p1: Point, p2: Point, p3: Point, n: u8) { // ...I'm not sure either ¯\_(ツ)_/¯ const OBJSPACE_FLATNESS: f32 = 0.35; const OBJSPACE_FLATNESS_SQUARED: f32 = OBJSPACE_FLATNESS * OBJSPACE_FLATNESS; const MAX_RECURSION_DEPTH: u8 = 16; let longlen = p0.distance_to(p1) + p1.distance_to(p2) + p2.distance_to(p3); let shortlen = p0.distance_to(p3); let flatness_squared = longlen * longlen - shortlen * shortlen; if n < MAX_RECURSION_DEPTH && flatness_squared > OBJSPACE_FLATNESS_SQUARED { let p01 = lerp(0.5, p0, p1); let p12 = lerp(0.5, p1, p2); let p23 = lerp(0.5, p2, p3); let pa = lerp(0.5, p01, p12); let pb = lerp(0.5, p12, p23); let mp = lerp(0.5, pa, pb); self.tesselate_cubic(p0, p01, pa, mp, n + 1); self.tesselate_cubic(mp, pb, p23, p3, n + 1); } else { self.draw_line(p0, p3); } } /// Run a callback for each pixel `index` & `alpha`, with indices in `0..width * height`. /// /// An `alpha` coverage value of `0.0` means the pixel is not covered at all by the glyph, /// whereas a value of `1.0` (or greater) means the pixel is totally covered. /// /// ``` /// # use ab_glyph_rasterizer::*; /// # let (width, height) = (1, 1); /// # let mut rasterizer = Rasterizer::new(width, height); /// let mut pixels = vec![0u8; width * height]; /// rasterizer.for_each_pixel(|index, alpha| { /// pixels[index] = (alpha * 255.0) as u8; /// }); /// ``` pub fn for_each_pixel(&self, mut px_fn: O) { let mut acc = 0.0; self.a[..self.width * self.height] .iter() .enumerate() .for_each(|(idx, c)| { acc += c; px_fn(idx, acc.abs()); }); } /// Run a callback for each pixel x position, y position & alpha. /// /// Convenience wrapper for [`Rasterizer::for_each_pixel`]. /// /// ``` /// # use ab_glyph_rasterizer::*; /// # let mut rasterizer = Rasterizer::new(1, 1); /// # struct Img; /// # impl Img { fn set_pixel(&self, x: u32, y: u32, a: u8) {} } /// # let image = Img; /// rasterizer.for_each_pixel_2d(|x, y, alpha| { /// image.set_pixel(x, y, (alpha * 255.0) as u8); /// }); /// ``` pub fn for_each_pixel_2d(&self, mut px_fn: O) { let width32 = self.width as u32; self.for_each_pixel(|idx, alpha| px_fn(idx as u32 % width32, idx as u32 / width32, alpha)); } } /// ``` /// let rasterizer = ab_glyph_rasterizer::Rasterizer::new(3, 4); /// assert_eq!(&format!("{:?}", rasterizer), "Rasterizer { width: 3, height: 4 }"); /// ``` impl core::fmt::Debug for Rasterizer { fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result { f.debug_struct("Rasterizer") .field("width", &self.width) .field("height", &self.height) .finish() } } #[cfg(all(feature = "std", any(target_arch = "x86", target_arch = "x86_64")))] #[target_feature(enable = "avx2")] unsafe fn draw_line_avx2(rast: &mut Rasterizer, p0: Point, p1: Point) { rast.draw_line_scalar(p0, p1) } #[cfg(all(feature = "std", any(target_arch = "x86", target_arch = "x86_64")))] #[target_feature(enable = "sse4.2")] unsafe fn draw_line_sse4_2(rast: &mut Rasterizer, p0: Point, p1: Point) { rast.draw_line_scalar(p0, p1) } ab_glyph_rasterizer-0.1.7/tests/issues.rs000064400000000000000000000005741046102023000167210ustar 00000000000000use ab_glyph_rasterizer::*; /// Index oob panic rasterizing "Gauntl" using Bitter-Regular.otf #[test] fn rusttype_156_index_panic() { let mut r = Rasterizer::new(6, 16); r.draw_line(point(5.54, 14.299999), point(3.7399998, 13.799999)); r.draw_line(point(3.7399998, 13.799999), point(3.7399998, 0.0)); r.draw_line(point(3.7399998, 0.0), point(0.0, 0.10000038)); }