Deleted vendor folder

1 files changed, 0 insertions, 346 deletions

diff --git a/vendor/gif/src/common.rs b/vendor/gif/src/common.rs
deleted file mode 100644
index 20ba99b..0000000
--- a/vendor/gif/src/common.rs
+++ /dev/null
@@ -1,346 +0,0 @@
-use std::borrow::Cow;
-use std::collections::HashMap;
-use std::collections::HashSet;
-
-/// Disposal method
-#[derive(Debug, Copy, Clone, PartialEq, Eq)]
-#[repr(u8)]
-pub enum DisposalMethod {
-    /// StreamingDecoder is not required to take any action.
-    Any = 0,
-    /// Do not dispose.
-    Keep = 1,
-    /// Restore to background color.
-    Background = 2,
-    /// Restore to previous.
-    Previous = 3,
-}
-
-impl DisposalMethod {
-    /// Converts `u8` to `Option<Self>`
-    pub fn from_u8(n: u8) -> Option<DisposalMethod> {
-        match n {
-            0 => Some(DisposalMethod::Any),
-            1 => Some(DisposalMethod::Keep),
-            2 => Some(DisposalMethod::Background),
-            3 => Some(DisposalMethod::Previous),
-            _ => None
-        }
-    }
-}
-
-/// Known GIF block labels.
-///
-/// Note that the block uniquely specifies the layout of bytes that follow and how they are
-/// framed. For example, the header always has a fixed length but is followed by a variable amount
-/// of additional data. An image descriptor may be followed by a local color table depending on
-/// information read in it. Therefore, it doesn't make sense to continue parsing after encountering
-/// an unknown block as the semantics of following bytes are unclear.
-///
-/// The extension block provides a common framing for an arbitrary amount of application specific
-/// data which may be ignored.
-#[derive(Debug, Copy, Clone, PartialEq, Eq)]
-#[repr(u8)]
-pub enum Block {
-    /// Image block.
-    Image = 0x2C,
-    /// Extension block.
-    Extension = 0x21,
-    /// Image trailer.
-    Trailer = 0x3B,
-}
-
-impl Block {
-    /// Converts `u8` to `Option<Self>`
-    pub fn from_u8(n: u8) -> Option<Block> {
-        match n {
-            0x2C => Some(Block::Image),
-            0x21 => Some(Block::Extension),
-            0x3B => Some(Block::Trailer),
-            _ => None
-        }
-    }
-}
-
-/// A newtype wrapper around an arbitrary extension ID.
-///
-/// An extension is some amount of byte data organized in sub-blocks so that one can skip over it
-/// without knowing the semantics. Though technically you likely want to use a `Application`
-/// extension, the library tries to stay flexible here.
-///
-/// This allows us to customize the set of impls compared to a raw `u8`. It also clarifies the
-/// intent and gives some inherent methods for interoperability with known extension types.
-#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash)]
-pub struct AnyExtension(pub u8);
-
-/// Known GIF extension labels.
-///
-/// These are extensions which may be interpreted by the library and to which a specification with
-/// the internal data layout is known.
-#[derive(Debug, Copy, Clone, PartialEq, Eq)]
-#[repr(u8)]
-pub enum Extension {
-    /// Plain Text extension.
-    ///
-    /// This instructs the decoder to render a text as characters in a grid of cells, in a
-    /// mono-spaced font of its choosing. This is seldom actually implemented and ignored by
-    /// ImageMagick. The color is always taken from the global table which further complicates any
-    /// use. No real information on the frame sequencing of this block is available in the
-    /// standard.
-    Text = 0x01,
-    /// Control extension.
-    Control = 0xF9,
-    /// Comment extension.
-    Comment = 0xFE,
-    /// Application extension.
-    ///
-    /// See [ImageMagick] for an idea of commonly recognized extensions.
-    ///
-    /// [ImageMagick]: https://github.com/ImageMagick/ImageMagick/blob/b0b58c6303195928060f55f9c3ca8233ab7f7733/coders/gif.c#L1128
-    Application = 0xFF,
-}
-
-impl AnyExtension {
-    /// Decode the label as a known extension.
-    pub fn into_known(self) -> Option<Extension> {
-        Extension::from_u8(self.0)
-    }
-}
-
-impl From<Extension> for AnyExtension {
-    fn from(ext: Extension) -> Self {
-        AnyExtension(ext as u8)
-    }
-}
-
-impl Extension {
-    /// Converts `u8` to a `Extension` if it is known.
-    pub fn from_u8(n: u8) -> Option<Extension> {
-        match n {
-            0x01 => Some(Extension::Text),
-            0xF9 => Some(Extension::Control),
-            0xFE => Some(Extension::Comment),
-            0xFF => Some(Extension::Application),
-            _ => None
-        }
-    }
-}
-
-/// A GIF frame
-#[derive(Debug, Clone)]
-pub struct Frame<'a> {
-    /// Frame delay in units of 10 ms.
-    pub delay: u16,
-    /// Disposal method.
-    pub dispose: DisposalMethod,
-    /// Transparent index (if available).
-    pub transparent: Option<u8>,
-    /// True if the frame needs user input to be displayed.
-    pub needs_user_input: bool,
-    /// Offset from the top border of the canvas.
-    pub top: u16,
-    /// Offset from the left border of the canvas.
-    pub left: u16,
-    /// Width of the frame.
-    pub width: u16,
-    /// Height of the frame.
-    pub height: u16,
-    /// True if the image is interlaced.
-    pub interlaced: bool,
-    /// Frame local color palette if available.
-    pub palette: Option<Vec<u8>>,
-    /// Buffer containing the image data.
-    /// Only indices unless configured differently.
-    pub buffer: Cow<'a, [u8]>
-}
-
-impl<'a> Default for Frame<'a> {
-    fn default() -> Frame<'a> {
-        Frame {
-            delay: 0,
-            dispose: DisposalMethod::Keep,
-            transparent: None,
-            needs_user_input: false,
-            top: 0,
-            left: 0,
-            width: 0,
-            height: 0,
-            interlaced: false,
-            palette: None,
-            buffer: Cow::Borrowed(&[])
-        }
-    }
-}
-
-impl Frame<'static> {
-    /// Creates a frame from pixels in RGBA format.
-    ///
-    /// This is a lossy method. The `gif` format does not support arbitrary alpha but only a 1-bit
-    /// transparency mask per pixel. Any non-zero alpha value will be interpreted as a fully opaque
-    /// pixel. Additionally, only 256 colors can appear in a single frame. The palette will be
-    /// reduced by the NeuQuant algorithm if necessary. Different frames have independent palettes.
-    ///
-    /// *Note: This method is not optimized for speed.*
-    ///
-    /// # Panics:
-    /// *   If the length of pixels does not equal `width * height * 4`.
-    #[cfg(feature = "color_quant")]
-    pub fn from_rgba(width: u16, height: u16, pixels: &mut [u8]) -> Frame<'static> {
-        Frame::from_rgba_speed(width, height, pixels, 1)
-    }
-
-    /// Creates a frame from pixels in RGBA format.
-    ///
-    /// `speed` is a value in the range [1, 30].
-    /// The higher the value the faster it runs at the cost of image quality.
-    /// A `speed` of 10 is a good compromise between speed and quality.
-    ///
-    /// This is a lossy method. The `gif` format does not support arbitrary alpha but only a 1-bit
-    /// transparency mask per pixel. Any non-zero alpha value will be interpreted as a fully opaque
-    /// pixel. Additionally, only 256 colors can appear in a single frame. The palette will be
-    /// reduced by the NeuQuant algorithm if necessary. Different frames have independent palettes.
-    ///
-    /// # Panics:
-    /// *   If the length of pixels does not equal `width * height * 4`.
-    /// *   If `speed < 1` or `speed > 30`
-    #[cfg(feature = "color_quant")]
-    pub fn from_rgba_speed(width: u16, height: u16, pixels: &mut [u8], speed: i32) -> Frame<'static> {
-        assert_eq!(width as usize * height as usize * 4, pixels.len(), "Too much or too little pixel data for the given width and height to create a GIF Frame");
-        assert!(speed >= 1 && speed <= 30, "speed needs to be in the range [1, 30]");
-        let mut transparent = None;
-        for pix in pixels.chunks_exact_mut(4) {
-            if pix[3] != 0 {
-                pix[3] = 0xFF;
-            } else {
-                transparent = Some([pix[0], pix[1], pix[2], pix[3]])
-            }
-        }
-
-        // Attempt to build a palette of all colors. If we go over 256 colors,
-        // switch to the NeuQuant algorithm.
-        let mut colors: HashSet<(u8, u8, u8, u8)> = HashSet::new();
-        for pixel in pixels.chunks_exact(4) {
-            if colors.insert((pixel[0], pixel[1], pixel[2], pixel[3])) && colors.len() > 256 {
-                // > 256 colours, let's use NeuQuant.
-                let nq = color_quant::NeuQuant::new(speed, 256, pixels);
-
-                return Frame {
-                    width,
-                    height,
-                    buffer: Cow::Owned(pixels.chunks_exact(4).map(|pix| nq.index_of(pix) as u8).collect()),
-                    palette: Some(nq.color_map_rgb()),
-                    transparent: transparent.map(|t| nq.index_of(&t) as u8),
-                    ..Frame::default()
-                };
-            }
-        }
-
-        // Palette size <= 256 elements, we can build an exact palette.
-        let mut colors_vec: Vec<(u8, u8, u8, u8)> = colors.into_iter().collect();
-        colors_vec.sort();
-        let palette = colors_vec.iter().flat_map(|&(r, g, b, _a)| [r, g, b]).collect();
-        let colors_lookup: HashMap<(u8, u8, u8, u8), u8> =  colors_vec.into_iter().zip(0..=255).collect();
-
-        let index_of = | pixel: &[u8] |
-            *colors_lookup.get(&(pixel[0], pixel[1], pixel[2], pixel[3])).unwrap();
-
-        return Frame {
-            width,
-            height,
-            buffer: Cow::Owned(pixels.chunks_exact(4).map(|pix| index_of(pix)).collect()),
-            palette: Some(palette),
-            transparent: transparent.map(|t| index_of(&t)),
-            ..Frame::default()
-        }
-    }
-
-    /// Creates a frame from a palette and indexed pixels.
-    ///
-    /// # Panics:
-    /// *   If the length of pixels does not equal `width * height`.
-    /// *   If the length of palette > `256 * 3`.
-    pub fn from_palette_pixels(width: u16, height: u16, pixels: &[u8], palette: &[u8], transparent: Option<u8>) -> Frame<'static> {
-        assert_eq!(width as usize * height as usize, pixels.len(), "Too many or too little pixels for the given width and height to create a GIF Frame");
-        assert!(palette.len() <= 256*3, "Too many palette values to create a GIF Frame");
-
-        Frame {
-            width,
-            height,
-            buffer: Cow::Owned(pixels.to_vec()),
-            palette: Some(palette.to_vec()),
-            transparent,
-            ..Frame::default()
-        }
-    }
-
-    /// Creates a frame from indexed pixels in the global palette.
-    ///
-    /// # Panics:
-    /// *   If the length of pixels does not equal `width * height`.
-    pub fn from_indexed_pixels(width: u16, height: u16, pixels: &[u8], transparent: Option<u8>) -> Frame<'static> {
-        assert_eq!(width as usize * height as usize, pixels.len(), "Too many or too little pixels for the given width and height to create a GIF Frame");
-
-        Frame {
-            width,
-            height,
-            buffer: Cow::Owned(pixels.to_vec()),
-            palette: None,
-            transparent,
-            ..Frame::default()
-        }
-    }
-
-    /// Creates a frame from pixels in RGB format.
-    ///
-    /// This is a lossy method. In the `gif` format only 256 colors can appear in a single frame.
-    /// The palette will be reduced by the NeuQuant algorithm if necessary. Different frames have
-    /// independent palettes.
-    ///
-    /// *Note: This method is not optimized for speed.*
-    ///
-    /// # Panics:
-    /// *   If the length of pixels does not equal `width * height * 3`.
-    #[cfg(feature = "color_quant")]
-    pub fn from_rgb(width: u16, height: u16, pixels: &[u8]) -> Frame<'static> {
-        Frame::from_rgb_speed(width, height, pixels, 1)
-    }
-
-    /// Creates a frame from pixels in RGB format.
-    ///
-    /// `speed` is a value in the range [1, 30].
-    ///
-    /// This is a lossy method. In the `gif` format only 256 colors can appear in a single frame.
-    /// The palette will be reduced by the NeuQuant algorithm if necessary. Different frames have
-    /// independent palettes.
-    ///
-    /// The higher the value the faster it runs at the cost of image quality.
-    /// A `speed` of 10 is a good compromise between speed and quality.
-    ///
-    /// # Panics:
-    /// *   If the length of pixels does not equal `width * height * 3`.
-    /// *   If `speed < 1` or `speed > 30`
-    #[cfg(feature = "color_quant")]
-    pub fn from_rgb_speed(width: u16, height: u16, pixels: &[u8], speed: i32) -> Frame<'static> {
-        assert_eq!(width as usize * height as usize * 3, pixels.len(), "Too much or too little pixel data for the given width and height to create a GIF Frame");
-        let mut vec: Vec<u8> = Vec::with_capacity(pixels.len() + width as usize * height as usize);
-        for v in pixels.chunks_exact(3) {
-            vec.extend_from_slice(&[v[0], v[1], v[2], 0xFF])
-        }
-        Frame::from_rgba_speed(width, height, &mut vec, speed)
-    }
-
-    pub(crate) fn required_bytes(&self) -> usize {
-        usize::from(self.width) * usize::from(self.height)
-    }
-}
-
-#[test]
-#[cfg(feature = "color_quant")]
-// Creating the `colors_lookup` hashmap in Frame::from_rgba_speed panics due to
-// overflow while bypassing NeuQuant and zipping a RangeFrom with 256 colors.
-// Changing .zip(0_u8..) to .zip(0_u8..=255) fixes this issue.
-fn rgba_speed_avoid_panic_256_colors() {
-    let side = 16;
-    let pixel_data: Vec<u8> = (0..=255).map(|a| vec![a, a, a]).flatten().collect();
-    Frame::from_rgb(side, side, &pixel_data);
-}