Deleted vendor folder

1 files changed, 0 insertions, 485 deletions

diff --git a/vendor/image/src/imageops/mod.rs b/vendor/image/src/imageops/mod.rs
deleted file mode 100644
index fdd2bf3..0000000
--- a/vendor/image/src/imageops/mod.rs
+++ /dev/null
@@ -1,485 +0,0 @@
-//! Image Processing Functions
-use std::cmp;
-
-use crate::image::{GenericImage, GenericImageView, SubImage};
-use crate::traits::{Lerp, Pixel, Primitive};
-
-pub use self::sample::FilterType;
-
-pub use self::sample::FilterType::{CatmullRom, Gaussian, Lanczos3, Nearest, Triangle};
-
-/// Affine transformations
-pub use self::affine::{
-    flip_horizontal, flip_horizontal_in, flip_horizontal_in_place, flip_vertical, flip_vertical_in,
-    flip_vertical_in_place, rotate180, rotate180_in, rotate180_in_place, rotate270, rotate270_in,
-    rotate90, rotate90_in,
-};
-
-/// Image sampling
-pub use self::sample::{
-    blur, filter3x3, interpolate_bilinear, interpolate_nearest, resize, sample_bilinear,
-    sample_nearest, thumbnail, unsharpen,
-};
-
-/// Color operations
-pub use self::colorops::{
-    brighten, contrast, dither, grayscale, grayscale_alpha, grayscale_with_type,
-    grayscale_with_type_alpha, huerotate, index_colors, invert, BiLevel, ColorMap,
-};
-
-mod affine;
-// Public only because of Rust bug:
-// https://github.com/rust-lang/rust/issues/18241
-pub mod colorops;
-mod sample;
-
-/// Return a mutable view into an image
-/// The coordinates set the position of the top left corner of the crop.
-pub fn crop<I: GenericImageView>(
-    image: &mut I,
-    x: u32,
-    y: u32,
-    width: u32,
-    height: u32,
-) -> SubImage<&mut I> {
-    let (x, y, width, height) = crop_dimms(image, x, y, width, height);
-    SubImage::new(image, x, y, width, height)
-}
-
-/// Return an immutable view into an image
-/// The coordinates set the position of the top left corner of the crop.
-pub fn crop_imm<I: GenericImageView>(
-    image: &I,
-    x: u32,
-    y: u32,
-    width: u32,
-    height: u32,
-) -> SubImage<&I> {
-    let (x, y, width, height) = crop_dimms(image, x, y, width, height);
-    SubImage::new(image, x, y, width, height)
-}
-
-fn crop_dimms<I: GenericImageView>(
-    image: &I,
-    x: u32,
-    y: u32,
-    width: u32,
-    height: u32,
-) -> (u32, u32, u32, u32) {
-    let (iwidth, iheight) = image.dimensions();
-
-    let x = cmp::min(x, iwidth);
-    let y = cmp::min(y, iheight);
-
-    let height = cmp::min(height, iheight - y);
-    let width = cmp::min(width, iwidth - x);
-
-    (x, y, width, height)
-}
-
-/// Calculate the region that can be copied from top to bottom.
-///
-/// Given image size of bottom and top image, and a point at which we want to place the top image
-/// onto the bottom image, how large can we be? Have to wary of the following issues:
-/// * Top might be larger than bottom
-/// * Overflows in the computation
-/// * Coordinates could be completely out of bounds
-///
-/// The main idea is to make use of inequalities provided by the nature of `saturating_add` and
-/// `saturating_sub`. These intrinsically validate that all resulting coordinates will be in bounds
-/// for both images.
-///
-/// We want that all these coordinate accesses are safe:
-/// 1. `bottom.get_pixel(x + [0..x_range), y + [0..y_range))`
-/// 2. `top.get_pixel([0..x_range), [0..y_range))`
-///
-/// Proof that the function provides the necessary bounds for width. Note that all unaugmented math
-/// operations are to be read in standard arithmetic, not integer arithmetic. Since no direct
-/// integer arithmetic occurs in the implementation, this is unambiguous.
-///
-/// ```text
-/// Three short notes/lemmata:
-/// - Iff `(a - b) <= 0` then `a.saturating_sub(b) = 0`
-/// - Iff `(a - b) >= 0` then `a.saturating_sub(b) = a - b`
-/// - If  `a <= c` then `a.saturating_sub(b) <= c.saturating_sub(b)`
-///
-/// 1.1 We show that if `bottom_width <= x`, then `x_range = 0` therefore `x + [0..x_range)` is empty.
-///
-/// x_range
-///  = (top_width.saturating_add(x).min(bottom_width)).saturating_sub(x)
-/// <= bottom_width.saturating_sub(x)
-///
-/// bottom_width <= x
-/// <==> bottom_width - x <= 0
-/// <==> bottom_width.saturating_sub(x) = 0
-///  ==> x_range <= 0
-///  ==> x_range  = 0
-///
-/// 1.2 If `x < bottom_width` then `x + x_range < bottom_width`
-///
-/// x + x_range
-/// <= x + bottom_width.saturating_sub(x)
-///  = x + (bottom_width - x)
-///  = bottom_width
-///
-/// 2. We show that `x_range <= top_width`
-///
-/// x_range
-///  = (top_width.saturating_add(x).min(bottom_width)).saturating_sub(x)
-/// <= top_width.saturating_add(x).saturating_sub(x)
-/// <= (top_wdith + x).saturating_sub(x)
-///  = top_width (due to `top_width >= 0` and `x >= 0`)
-/// ```
-///
-/// Proof is the same for height.
-pub fn overlay_bounds(
-    (bottom_width, bottom_height): (u32, u32),
-    (top_width, top_height): (u32, u32),
-    x: u32,
-    y: u32,
-) -> (u32, u32) {
-    let x_range = top_width
-        .saturating_add(x) // Calculate max coordinate
-        .min(bottom_width) // Restrict to lower width
-        .saturating_sub(x); // Determinate length from start `x`
-    let y_range = top_height
-        .saturating_add(y)
-        .min(bottom_height)
-        .saturating_sub(y);
-    (x_range, y_range)
-}
-
-/// Calculate the region that can be copied from top to bottom.
-///
-/// Given image size of bottom and top image, and a point at which we want to place the top image
-/// onto the bottom image, how large can we be? Have to wary of the following issues:
-/// * Top might be larger than bottom
-/// * Overflows in the computation
-/// * Coordinates could be completely out of bounds
-///
-/// The returned value is of the form:
-///
-/// `(origin_bottom_x, origin_bottom_y, origin_top_x, origin_top_y, x_range, y_range)`
-///
-/// The main idea is to do computations on i64's and then clamp to image dimensions.
-/// In particular, we want to ensure that all these coordinate accesses are safe:
-/// 1. `bottom.get_pixel(origin_bottom_x + [0..x_range), origin_bottom_y + [0..y_range))`
-/// 2. `top.get_pixel(origin_top_y + [0..x_range), origin_top_y + [0..y_range))`
-///
-fn overlay_bounds_ext(
-    (bottom_width, bottom_height): (u32, u32),
-    (top_width, top_height): (u32, u32),
-    x: i64,
-    y: i64,
-) -> (u32, u32, u32, u32, u32, u32) {
-    // Return a predictable value if the two images don't overlap at all.
-    if x > i64::from(bottom_width)
-        || y > i64::from(bottom_height)
-        || x.saturating_add(i64::from(top_width)) <= 0
-        || y.saturating_add(i64::from(top_height)) <= 0
-    {
-        return (0, 0, 0, 0, 0, 0);
-    }
-
-    // Find the maximum x and y coordinates in terms of the bottom image.
-    let max_x = x.saturating_add(i64::from(top_width));
-    let max_y = y.saturating_add(i64::from(top_height));
-
-    // Clip the origin and maximum coordinates to the bounds of the bottom image.
-    // Casting to a u32 is safe because both 0 and `bottom_{width,height}` fit
-    // into 32-bits.
-    let max_inbounds_x = max_x.clamp(0, i64::from(bottom_width)) as u32;
-    let max_inbounds_y = max_y.clamp(0, i64::from(bottom_height)) as u32;
-    let origin_bottom_x = x.clamp(0, i64::from(bottom_width)) as u32;
-    let origin_bottom_y = y.clamp(0, i64::from(bottom_height)) as u32;
-
-    // The range is the difference between the maximum inbounds coordinates and
-    // the clipped origin. Unchecked subtraction is safe here because both are
-    // always positive and `max_inbounds_{x,y}` >= `origin_{x,y}` due to
-    // `top_{width,height}` being >= 0.
-    let x_range = max_inbounds_x - origin_bottom_x;
-    let y_range = max_inbounds_y - origin_bottom_y;
-
-    // If x (or y) is negative, then the origin of the top image is shifted by -x (or -y).
-    let origin_top_x = x.saturating_mul(-1).clamp(0, i64::from(top_width)) as u32;
-    let origin_top_y = y.saturating_mul(-1).clamp(0, i64::from(top_height)) as u32;
-
-    (
-        origin_bottom_x,
-        origin_bottom_y,
-        origin_top_x,
-        origin_top_y,
-        x_range,
-        y_range,
-    )
-}
-
-/// Overlay an image at a given coordinate (x, y)
-pub fn overlay<I, J>(bottom: &mut I, top: &J, x: i64, y: i64)
-where
-    I: GenericImage,
-    J: GenericImageView<Pixel = I::Pixel>,
-{
-    let bottom_dims = bottom.dimensions();
-    let top_dims = top.dimensions();
-
-    // Crop our top image if we're going out of bounds
-    let (origin_bottom_x, origin_bottom_y, origin_top_x, origin_top_y, range_width, range_height) =
-        overlay_bounds_ext(bottom_dims, top_dims, x, y);
-
-    for y in 0..range_height {
-        for x in 0..range_width {
-            let p = top.get_pixel(origin_top_x + x, origin_top_y + y);
-            let mut bottom_pixel = bottom.get_pixel(origin_bottom_x + x, origin_bottom_y + y);
-            bottom_pixel.blend(&p);
-
-            bottom.put_pixel(origin_bottom_x + x, origin_bottom_y + y, bottom_pixel);
-        }
-    }
-}
-
-/// Tile an image by repeating it multiple times
-///
-/// # Examples
-/// ```no_run
-/// use image::{RgbaImage};
-///
-/// let mut img = RgbaImage::new(1920, 1080);
-/// let tile = image::open("tile.png").unwrap();
-///
-/// image::imageops::tile(&mut img, &tile);
-/// img.save("tiled_wallpaper.png").unwrap();
-/// ```
-pub fn tile<I, J>(bottom: &mut I, top: &J)
-where
-    I: GenericImage,
-    J: GenericImageView<Pixel = I::Pixel>,
-{
-    for x in (0..bottom.width()).step_by(top.width() as usize) {
-        for y in (0..bottom.height()).step_by(top.height() as usize) {
-            overlay(bottom, top, i64::from(x), i64::from(y));
-        }
-    }
-}
-
-/// Fill the image with a linear vertical gradient
-///
-/// This function assumes a linear color space.
-///
-/// # Examples
-/// ```no_run
-/// use image::{Rgba, RgbaImage, Pixel};
-///
-/// let mut img = RgbaImage::new(100, 100);
-/// let start = Rgba::from_slice(&[0, 128, 0, 0]);
-/// let end = Rgba::from_slice(&[255, 255, 255, 255]);
-///
-/// image::imageops::vertical_gradient(&mut img, start, end);
-/// img.save("vertical_gradient.png").unwrap();
-pub fn vertical_gradient<S, P, I>(img: &mut I, start: &P, stop: &P)
-where
-    I: GenericImage<Pixel = P>,
-    P: Pixel<Subpixel = S> + 'static,
-    S: Primitive + Lerp + 'static,
-{
-    for y in 0..img.height() {
-        let pixel = start.map2(stop, |a, b| {
-            let y = <S::Ratio as num_traits::NumCast>::from(y).unwrap();
-            let height = <S::Ratio as num_traits::NumCast>::from(img.height() - 1).unwrap();
-            S::lerp(a, b, y / height)
-        });
-
-        for x in 0..img.width() {
-            img.put_pixel(x, y, pixel);
-        }
-    }
-}
-
-/// Fill the image with a linear horizontal gradient
-///
-/// This function assumes a linear color space.
-///
-/// # Examples
-/// ```no_run
-/// use image::{Rgba, RgbaImage, Pixel};
-///
-/// let mut img = RgbaImage::new(100, 100);
-/// let start = Rgba::from_slice(&[0, 128, 0, 0]);
-/// let end = Rgba::from_slice(&[255, 255, 255, 255]);
-///
-/// image::imageops::horizontal_gradient(&mut img, start, end);
-/// img.save("horizontal_gradient.png").unwrap();
-pub fn horizontal_gradient<S, P, I>(img: &mut I, start: &P, stop: &P)
-where
-    I: GenericImage<Pixel = P>,
-    P: Pixel<Subpixel = S> + 'static,
-    S: Primitive + Lerp + 'static,
-{
-    for x in 0..img.width() {
-        let pixel = start.map2(stop, |a, b| {
-            let x = <S::Ratio as num_traits::NumCast>::from(x).unwrap();
-            let width = <S::Ratio as num_traits::NumCast>::from(img.width() - 1).unwrap();
-            S::lerp(a, b, x / width)
-        });
-
-        for y in 0..img.height() {
-            img.put_pixel(x, y, pixel);
-        }
-    }
-}
-
-/// Replace the contents of an image at a given coordinate (x, y)
-pub fn replace<I, J>(bottom: &mut I, top: &J, x: i64, y: i64)
-where
-    I: GenericImage,
-    J: GenericImageView<Pixel = I::Pixel>,
-{
-    let bottom_dims = bottom.dimensions();
-    let top_dims = top.dimensions();
-
-    // Crop our top image if we're going out of bounds
-    let (origin_bottom_x, origin_bottom_y, origin_top_x, origin_top_y, range_width, range_height) =
-        overlay_bounds_ext(bottom_dims, top_dims, x, y);
-
-    for y in 0..range_height {
-        for x in 0..range_width {
-            let p = top.get_pixel(origin_top_x + x, origin_top_y + y);
-            bottom.put_pixel(origin_bottom_x + x, origin_bottom_y + y, p);
-        }
-    }
-}
-
-#[cfg(test)]
-mod tests {
-
-    use super::{overlay, overlay_bounds_ext};
-    use crate::color::Rgb;
-    use crate::ImageBuffer;
-    use crate::RgbaImage;
-
-    #[test]
-    fn test_overlay_bounds_ext() {
-        assert_eq!(
-            overlay_bounds_ext((10, 10), (10, 10), 0, 0),
-            (0, 0, 0, 0, 10, 10)
-        );
-        assert_eq!(
-            overlay_bounds_ext((10, 10), (10, 10), 1, 0),
-            (1, 0, 0, 0, 9, 10)
-        );
-        assert_eq!(
-            overlay_bounds_ext((10, 10), (10, 10), 0, 11),
-            (0, 0, 0, 0, 0, 0)
-        );
-        assert_eq!(
-            overlay_bounds_ext((10, 10), (10, 10), -1, 0),
-            (0, 0, 1, 0, 9, 10)
-        );
-        assert_eq!(
-            overlay_bounds_ext((10, 10), (10, 10), -10, 0),
-            (0, 0, 0, 0, 0, 0)
-        );
-        assert_eq!(
-            overlay_bounds_ext((10, 10), (10, 10), 1i64 << 50, 0),
-            (0, 0, 0, 0, 0, 0)
-        );
-        assert_eq!(
-            overlay_bounds_ext((10, 10), (10, 10), -(1i64 << 50), 0),
-            (0, 0, 0, 0, 0, 0)
-        );
-        assert_eq!(
-            overlay_bounds_ext((10, 10), (u32::MAX, 10), 10 - i64::from(u32::MAX), 0),
-            (0, 0, u32::MAX - 10, 0, 10, 10)
-        );
-    }
-
-    #[test]
-    /// Test that images written into other images works
-    fn test_image_in_image() {
-        let mut target = ImageBuffer::new(32, 32);
-        let source = ImageBuffer::from_pixel(16, 16, Rgb([255u8, 0, 0]));
-        overlay(&mut target, &source, 0, 0);
-        assert!(*target.get_pixel(0, 0) == Rgb([255u8, 0, 0]));
-        assert!(*target.get_pixel(15, 0) == Rgb([255u8, 0, 0]));
-        assert!(*target.get_pixel(16, 0) == Rgb([0u8, 0, 0]));
-        assert!(*target.get_pixel(0, 15) == Rgb([255u8, 0, 0]));
-        assert!(*target.get_pixel(0, 16) == Rgb([0u8, 0, 0]));
-    }
-
-    #[test]
-    /// Test that images written outside of a frame doesn't blow up
-    fn test_image_in_image_outside_of_bounds() {
-        let mut target = ImageBuffer::new(32, 32);
-        let source = ImageBuffer::from_pixel(32, 32, Rgb([255u8, 0, 0]));
-        overlay(&mut target, &source, 1, 1);
-        assert!(*target.get_pixel(0, 0) == Rgb([0, 0, 0]));
-        assert!(*target.get_pixel(1, 1) == Rgb([255u8, 0, 0]));
-        assert!(*target.get_pixel(31, 31) == Rgb([255u8, 0, 0]));
-    }
-
-    #[test]
-    /// Test that images written to coordinates out of the frame doesn't blow up
-    /// (issue came up in #848)
-    fn test_image_outside_image_no_wrap_around() {
-        let mut target = ImageBuffer::new(32, 32);
-        let source = ImageBuffer::from_pixel(32, 32, Rgb([255u8, 0, 0]));
-        overlay(&mut target, &source, 33, 33);
-        assert!(*target.get_pixel(0, 0) == Rgb([0, 0, 0]));
-        assert!(*target.get_pixel(1, 1) == Rgb([0, 0, 0]));
-        assert!(*target.get_pixel(31, 31) == Rgb([0, 0, 0]));
-    }
-
-    #[test]
-    /// Test that images written to coordinates with overflow works
-    fn test_image_coordinate_overflow() {
-        let mut target = ImageBuffer::new(16, 16);
-        let source = ImageBuffer::from_pixel(32, 32, Rgb([255u8, 0, 0]));
-        // Overflows to 'sane' coordinates but top is larger than bot.
-        overlay(
-            &mut target,
-            &source,
-            i64::from(u32::max_value() - 31),
-            i64::from(u32::max_value() - 31),
-        );
-        assert!(*target.get_pixel(0, 0) == Rgb([0, 0, 0]));
-        assert!(*target.get_pixel(1, 1) == Rgb([0, 0, 0]));
-        assert!(*target.get_pixel(15, 15) == Rgb([0, 0, 0]));
-    }
-
-    use super::{horizontal_gradient, vertical_gradient};
-
-    #[test]
-    /// Test that horizontal gradients are correctly generated
-    fn test_image_horizontal_gradient_limits() {
-        let mut img = ImageBuffer::new(100, 1);
-
-        let start = Rgb([0u8, 128, 0]);
-        let end = Rgb([255u8, 255, 255]);
-
-        horizontal_gradient(&mut img, &start, &end);
-
-        assert_eq!(img.get_pixel(0, 0), &start);
-        assert_eq!(img.get_pixel(img.width() - 1, 0), &end);
-    }
-
-    #[test]
-    /// Test that vertical gradients are correctly generated
-    fn test_image_vertical_gradient_limits() {
-        let mut img = ImageBuffer::new(1, 100);
-
-        let start = Rgb([0u8, 128, 0]);
-        let end = Rgb([255u8, 255, 255]);
-
-        vertical_gradient(&mut img, &start, &end);
-
-        assert_eq!(img.get_pixel(0, 0), &start);
-        assert_eq!(img.get_pixel(0, img.height() - 1), &end);
-    }
-
-    #[test]
-    /// Test blur doesn't panick when passed 0.0
-    fn test_blur_zero() {
-        let image = RgbaImage::new(50, 50);
-        let _ = super::blur(&image, 0.0);
-    }
-}