From a990de90fe41456a23e58bd087d2f107d321f3a1 Mon Sep 17 00:00:00 2001
From: Valentin Popov <valentin@popov.link>
Date: Fri, 19 Jul 2024 16:37:58 +0400
Subject: Deleted vendor folder

---
 vendor/image/src/codecs/ico/decoder.rs | 470 ---------------------------------
 1 file changed, 470 deletions(-)
 delete mode 100644 vendor/image/src/codecs/ico/decoder.rs

(limited to 'vendor/image/src/codecs/ico/decoder.rs')

diff --git a/vendor/image/src/codecs/ico/decoder.rs b/vendor/image/src/codecs/ico/decoder.rs
deleted file mode 100644
index 4f02787..0000000
--- a/vendor/image/src/codecs/ico/decoder.rs
+++ /dev/null
@@ -1,470 +0,0 @@
-use byteorder::{LittleEndian, ReadBytesExt};
-use std::convert::TryFrom;
-use std::io::{self, Cursor, Read, Seek, SeekFrom};
-use std::marker::PhantomData;
-use std::{error, fmt, mem};
-
-use crate::color::ColorType;
-use crate::error::{
-    DecodingError, ImageError, ImageResult, UnsupportedError, UnsupportedErrorKind,
-};
-use crate::image::{self, ImageDecoder, ImageFormat};
-
-use self::InnerDecoder::*;
-use crate::codecs::bmp::BmpDecoder;
-use crate::codecs::png::{PngDecoder, PNG_SIGNATURE};
-
-/// Errors that can occur during decoding and parsing an ICO image or one of its enclosed images.
-#[derive(Debug, Copy, Clone, Hash, PartialEq, Eq, PartialOrd, Ord)]
-enum DecoderError {
-    /// The ICO directory is empty
-    NoEntries,
-    /// The number of color planes (0 or 1), or the horizontal coordinate of the hotspot for CUR files too big.
-    IcoEntryTooManyPlanesOrHotspot,
-    /// The bit depth (may be 0 meaning unspecified), or the vertical coordinate of the hotspot for CUR files too big.
-    IcoEntryTooManyBitsPerPixelOrHotspot,
-
-    /// The entry is in PNG format and specified a length that is shorter than PNG header.
-    PngShorterThanHeader,
-    /// The enclosed PNG is not in RGBA, which is invalid: https://blogs.msdn.microsoft.com/oldnewthing/20101022-00/?p=12473/.
-    PngNotRgba,
-
-    /// The entry is in BMP format and specified a data size that is not correct for the image and optional mask data.
-    InvalidDataSize,
-
-    /// The dimensions specified by the entry does not match the dimensions in the header of the enclosed image.
-    ImageEntryDimensionMismatch {
-        /// The mismatched subimage's type
-        format: IcoEntryImageFormat,
-        /// The dimensions specified by the entry
-        entry: (u16, u16),
-        /// The dimensions of the image itself
-        image: (u32, u32),
-    },
-}
-
-impl fmt::Display for DecoderError {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        match self {
-            DecoderError::NoEntries => f.write_str("ICO directory contains no image"),
-            DecoderError::IcoEntryTooManyPlanesOrHotspot => {
-                f.write_str("ICO image entry has too many color planes or too large hotspot value")
-            }
-            DecoderError::IcoEntryTooManyBitsPerPixelOrHotspot => f.write_str(
-                "ICO image entry has too many bits per pixel or too large hotspot value",
-            ),
-            DecoderError::PngShorterThanHeader => {
-                f.write_str("Entry specified a length that is shorter than PNG header!")
-            }
-            DecoderError::PngNotRgba => f.write_str("The PNG is not in RGBA format!"),
-            DecoderError::InvalidDataSize => {
-                f.write_str("ICO image data size did not match expected size")
-            }
-            DecoderError::ImageEntryDimensionMismatch {
-                format,
-                entry,
-                image,
-            } => f.write_fmt(format_args!(
-                "Entry{:?} and {}{:?} dimensions do not match!",
-                entry, format, image
-            )),
-        }
-    }
-}
-
-impl From<DecoderError> for ImageError {
-    fn from(e: DecoderError) -> ImageError {
-        ImageError::Decoding(DecodingError::new(ImageFormat::Ico.into(), e))
-    }
-}
-
-impl error::Error for DecoderError {}
-
-/// The image formats an ICO may contain
-#[derive(Debug, Copy, Clone, Hash, PartialEq, Eq, PartialOrd, Ord)]
-enum IcoEntryImageFormat {
-    /// PNG in ARGB
-    Png,
-    /// BMP with optional alpha mask
-    Bmp,
-}
-
-impl fmt::Display for IcoEntryImageFormat {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        f.write_str(match self {
-            IcoEntryImageFormat::Png => "PNG",
-            IcoEntryImageFormat::Bmp => "BMP",
-        })
-    }
-}
-
-impl From<IcoEntryImageFormat> for ImageFormat {
-    fn from(val: IcoEntryImageFormat) -> Self {
-        match val {
-            IcoEntryImageFormat::Png => ImageFormat::Png,
-            IcoEntryImageFormat::Bmp => ImageFormat::Bmp,
-        }
-    }
-}
-
-/// An ico decoder
-pub struct IcoDecoder<R: Read> {
-    selected_entry: DirEntry,
-    inner_decoder: InnerDecoder<R>,
-}
-
-enum InnerDecoder<R: Read> {
-    Bmp(BmpDecoder<R>),
-    Png(Box<PngDecoder<R>>),
-}
-
-#[derive(Clone, Copy, Default)]
-struct DirEntry {
-    width: u8,
-    height: u8,
-    // We ignore some header fields as they will be replicated in the PNG, BMP and they are not
-    // necessary for determining the best_entry.
-    #[allow(unused)]
-    color_count: u8,
-    // Wikipedia has this to say:
-    // Although Microsoft's technical documentation states that this value must be zero, the icon
-    // encoder built into .NET (System.Drawing.Icon.Save) sets this value to 255. It appears that
-    // the operating system ignores this value altogether.
-    #[allow(unused)]
-    reserved: u8,
-
-    // We ignore some header fields as they will be replicated in the PNG, BMP and they are not
-    // necessary for determining the best_entry.
-    #[allow(unused)]
-    num_color_planes: u16,
-    bits_per_pixel: u16,
-
-    image_length: u32,
-    image_offset: u32,
-}
-
-impl<R: Read + Seek> IcoDecoder<R> {
-    /// Create a new decoder that decodes from the stream ```r```
-    pub fn new(mut r: R) -> ImageResult<IcoDecoder<R>> {
-        let entries = read_entries(&mut r)?;
-        let entry = best_entry(entries)?;
-        let decoder = entry.decoder(r)?;
-
-        Ok(IcoDecoder {
-            selected_entry: entry,
-            inner_decoder: decoder,
-        })
-    }
-}
-
-fn read_entries<R: Read>(r: &mut R) -> ImageResult<Vec<DirEntry>> {
-    let _reserved = r.read_u16::<LittleEndian>()?;
-    let _type = r.read_u16::<LittleEndian>()?;
-    let count = r.read_u16::<LittleEndian>()?;
-    (0..count).map(|_| read_entry(r)).collect()
-}
-
-fn read_entry<R: Read>(r: &mut R) -> ImageResult<DirEntry> {
-    Ok(DirEntry {
-        width: r.read_u8()?,
-        height: r.read_u8()?,
-        color_count: r.read_u8()?,
-        reserved: r.read_u8()?,
-        num_color_planes: {
-            // This may be either the number of color planes (0 or 1), or the horizontal coordinate
-            // of the hotspot for CUR files.
-            let num = r.read_u16::<LittleEndian>()?;
-            if num > 256 {
-                return Err(DecoderError::IcoEntryTooManyPlanesOrHotspot.into());
-            }
-            num
-        },
-        bits_per_pixel: {
-            // This may be either the bit depth (may be 0 meaning unspecified),
-            // or the vertical coordinate of the hotspot for CUR files.
-            let num = r.read_u16::<LittleEndian>()?;
-            if num > 256 {
-                return Err(DecoderError::IcoEntryTooManyBitsPerPixelOrHotspot.into());
-            }
-            num
-        },
-        image_length: r.read_u32::<LittleEndian>()?,
-        image_offset: r.read_u32::<LittleEndian>()?,
-    })
-}
-
-/// Find the entry with the highest (color depth, size).
-fn best_entry(mut entries: Vec<DirEntry>) -> ImageResult<DirEntry> {
-    let mut best = entries.pop().ok_or(DecoderError::NoEntries)?;
-
-    let mut best_score = (
-        best.bits_per_pixel,
-        u32::from(best.real_width()) * u32::from(best.real_height()),
-    );
-
-    for entry in entries {
-        let score = (
-            entry.bits_per_pixel,
-            u32::from(entry.real_width()) * u32::from(entry.real_height()),
-        );
-        if score > best_score {
-            best = entry;
-            best_score = score;
-        }
-    }
-    Ok(best)
-}
-
-impl DirEntry {
-    fn real_width(&self) -> u16 {
-        match self.width {
-            0 => 256,
-            w => u16::from(w),
-        }
-    }
-
-    fn real_height(&self) -> u16 {
-        match self.height {
-            0 => 256,
-            h => u16::from(h),
-        }
-    }
-
-    fn matches_dimensions(&self, width: u32, height: u32) -> bool {
-        u32::from(self.real_width()) == width.min(256)
-            && u32::from(self.real_height()) == height.min(256)
-    }
-
-    fn seek_to_start<R: Read + Seek>(&self, r: &mut R) -> ImageResult<()> {
-        r.seek(SeekFrom::Start(u64::from(self.image_offset)))?;
-        Ok(())
-    }
-
-    fn is_png<R: Read + Seek>(&self, r: &mut R) -> ImageResult<bool> {
-        self.seek_to_start(r)?;
-
-        // Read the first 8 bytes to sniff the image.
-        let mut signature = [0u8; 8];
-        r.read_exact(&mut signature)?;
-
-        Ok(signature == PNG_SIGNATURE)
-    }
-
-    fn decoder<R: Read + Seek>(&self, mut r: R) -> ImageResult<InnerDecoder<R>> {
-        let is_png = self.is_png(&mut r)?;
-        self.seek_to_start(&mut r)?;
-
-        if is_png {
-            Ok(Png(Box::new(PngDecoder::new(r)?)))
-        } else {
-            Ok(Bmp(BmpDecoder::new_with_ico_format(r)?))
-        }
-    }
-}
-
-/// Wrapper struct around a `Cursor<Vec<u8>>`
-pub struct IcoReader<R>(Cursor<Vec<u8>>, PhantomData<R>);
-impl<R> Read for IcoReader<R> {
-    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
-        self.0.read(buf)
-    }
-    fn read_to_end(&mut self, buf: &mut Vec<u8>) -> io::Result<usize> {
-        if self.0.position() == 0 && buf.is_empty() {
-            mem::swap(buf, self.0.get_mut());
-            Ok(buf.len())
-        } else {
-            self.0.read_to_end(buf)
-        }
-    }
-}
-
-impl<'a, R: 'a + Read + Seek> ImageDecoder<'a> for IcoDecoder<R> {
-    type Reader = IcoReader<R>;
-
-    fn dimensions(&self) -> (u32, u32) {
-        match self.inner_decoder {
-            Bmp(ref decoder) => decoder.dimensions(),
-            Png(ref decoder) => decoder.dimensions(),
-        }
-    }
-
-    fn color_type(&self) -> ColorType {
-        match self.inner_decoder {
-            Bmp(ref decoder) => decoder.color_type(),
-            Png(ref decoder) => decoder.color_type(),
-        }
-    }
-
-    fn into_reader(self) -> ImageResult<Self::Reader> {
-        Ok(IcoReader(
-            Cursor::new(image::decoder_to_vec(self)?),
-            PhantomData,
-        ))
-    }
-
-    fn read_image(self, buf: &mut [u8]) -> ImageResult<()> {
-        assert_eq!(u64::try_from(buf.len()), Ok(self.total_bytes()));
-        match self.inner_decoder {
-            Png(decoder) => {
-                if self.selected_entry.image_length < PNG_SIGNATURE.len() as u32 {
-                    return Err(DecoderError::PngShorterThanHeader.into());
-                }
-
-                // Check if the image dimensions match the ones in the image data.
-                let (width, height) = decoder.dimensions();
-                if !self.selected_entry.matches_dimensions(width, height) {
-                    return Err(DecoderError::ImageEntryDimensionMismatch {
-                        format: IcoEntryImageFormat::Png,
-                        entry: (
-                            self.selected_entry.real_width(),
-                            self.selected_entry.real_height(),
-                        ),
-                        image: (width, height),
-                    }
-                    .into());
-                }
-
-                // Embedded PNG images can only be of the 32BPP RGBA format.
-                // https://blogs.msdn.microsoft.com/oldnewthing/20101022-00/?p=12473/
-                if decoder.color_type() != ColorType::Rgba8 {
-                    return Err(DecoderError::PngNotRgba.into());
-                }
-
-                decoder.read_image(buf)
-            }
-            Bmp(mut decoder) => {
-                let (width, height) = decoder.dimensions();
-                if !self.selected_entry.matches_dimensions(width, height) {
-                    return Err(DecoderError::ImageEntryDimensionMismatch {
-                        format: IcoEntryImageFormat::Bmp,
-                        entry: (
-                            self.selected_entry.real_width(),
-                            self.selected_entry.real_height(),
-                        ),
-                        image: (width, height),
-                    }
-                    .into());
-                }
-
-                // The ICO decoder needs an alpha channel to apply the AND mask.
-                if decoder.color_type() != ColorType::Rgba8 {
-                    return Err(ImageError::Unsupported(
-                        UnsupportedError::from_format_and_kind(
-                            ImageFormat::Bmp.into(),
-                            UnsupportedErrorKind::Color(decoder.color_type().into()),
-                        ),
-                    ));
-                }
-
-                decoder.read_image_data(buf)?;
-
-                let r = decoder.reader();
-                let image_end = r.stream_position()?;
-                let data_end = u64::from(self.selected_entry.image_offset)
-                    + u64::from(self.selected_entry.image_length);
-
-                let mask_row_bytes = ((width + 31) / 32) * 4;
-                let mask_length = u64::from(mask_row_bytes) * u64::from(height);
-
-                // data_end should be image_end + the mask length (mask_row_bytes * height).
-                // According to
-                // https://devblogs.microsoft.com/oldnewthing/20101021-00/?p=12483
-                // the mask is required, but according to Wikipedia
-                // https://en.wikipedia.org/wiki/ICO_(file_format)
-                // the mask is not required. Unfortunately, Wikipedia does not have a citation
-                // for that claim, so we can't be sure which is correct.
-                if data_end >= image_end + mask_length {
-                    // If there's an AND mask following the image, read and apply it.
-                    for y in 0..height {
-                        let mut x = 0;
-                        for _ in 0..mask_row_bytes {
-                            // Apply the bits of each byte until we reach the end of the row.
-                            let mask_byte = r.read_u8()?;
-                            for bit in (0..8).rev() {
-                                if x >= width {
-                                    break;
-                                }
-                                if mask_byte & (1 << bit) != 0 {
-                                    // Set alpha channel to transparent.
-                                    buf[((height - y - 1) * width + x) as usize * 4 + 3] = 0;
-                                }
-                                x += 1;
-                            }
-                        }
-                    }
-
-                    Ok(())
-                } else if data_end == image_end {
-                    // accept images with no mask data
-                    Ok(())
-                } else {
-                    Err(DecoderError::InvalidDataSize.into())
-                }
-            }
-        }
-    }
-}
-
-#[cfg(test)]
-mod test {
-    use super::*;
-
-    // Test if BMP images without alpha channel inside ICOs don't panic.
-    // Because the test data is invalid decoding should produce an error.
-    #[test]
-    fn bmp_16_with_missing_alpha_channel() {
-        let data = vec![
-            0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x0e, 0x04, 0xc3, 0x7e, 0x00, 0x00, 0x00, 0x00,
-            0x7c, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x00, 0x00, 0xf8, 0xff, 0xff, 0xff, 0x01, 0x00,
-            0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x12, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x8f, 0xf6, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-            0x20, 0x66, 0x74, 0x83, 0x70, 0x61, 0x76, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02,
-            0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xeb, 0x00, 0x9b, 0x00, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4e, 0x47, 0x0d,
-            0x0a, 0x1a, 0x0a, 0x00, 0x00, 0x00, 0x62, 0x49, 0x48, 0x44, 0x52, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x0c,
-            0x00, 0x00, 0x00, 0xc3, 0x3f, 0x94, 0x61, 0xaa, 0x17, 0x4d, 0x8d, 0x79, 0x1d, 0x8b,
-            0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x14, 0x2e, 0x28, 0x40, 0xe5, 0x9f,
-            0x4b, 0x4d, 0xe9, 0x87, 0xd3, 0xda, 0xd6, 0x89, 0x81, 0xc5, 0xa4, 0xa1, 0x60, 0x98,
-            0x31, 0xc7, 0x1d, 0xb6, 0x8f, 0x20, 0xc8, 0x3e, 0xee, 0xd8, 0xe4, 0x8f, 0xee, 0x7b,
-            0x48, 0x9b, 0x88, 0x25, 0x13, 0xda, 0xa4, 0x13, 0xa4, 0x00, 0x00, 0x00, 0x00, 0x40,
-            0x16, 0x01, 0xff, 0xff, 0xff, 0xff, 0xe9, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0xa3, 0x66, 0x64, 0x41, 0x54, 0xa3, 0xa3, 0x00, 0x00, 0x00, 0xb8, 0x00,
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa3, 0x66, 0x64, 0x41, 0x54, 0xa3, 0xa3,
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8f, 0xf6, 0xff, 0xff,
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x66, 0x74, 0x83, 0x70, 0x61, 0x76,
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff,
-            0xeb, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a, 0x00, 0x00, 0x00, 0x62, 0x49,
-            0x48, 0x44, 0x52, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0xff, 0xff, 0x94, 0xc8, 0x00, 0x02, 0x0c, 0x00, 0xff, 0xff, 0xc6,
-            0x84, 0x00, 0x2a, 0x75, 0x03, 0xa3, 0x05, 0xfb, 0xe1, 0x6e, 0xe8, 0x27, 0xd6, 0xd3,
-            0x96, 0xc1, 0xe4, 0x30, 0x0c, 0x05, 0xb9, 0xa3, 0x8b, 0x29, 0xda, 0xa4, 0xf1, 0x4d,
-            0xf3, 0xb2, 0x98, 0x2b, 0xe6, 0x93, 0x07, 0xf9, 0xca, 0x2b, 0xc2, 0x39, 0x20, 0xba,
-            0x7c, 0xa0, 0xb1, 0x43, 0xe6, 0xf9, 0xdc, 0xd1, 0xc2, 0x52, 0xdc, 0x41, 0xc1, 0x2f,
-            0x29, 0xf7, 0x46, 0x32, 0xda, 0x1b, 0x72, 0x8c, 0xe6, 0x2b, 0x01, 0xe5, 0x49, 0x21,
-            0x89, 0x89, 0xe4, 0x3d, 0xa1, 0xdb, 0x3b, 0x4a, 0x0b, 0x52, 0x86, 0x52, 0x33, 0x9d,
-            0xb2, 0xcf, 0x4a, 0x86, 0x53, 0xd7, 0xa9, 0x4b, 0xaf, 0x62, 0x06, 0x49, 0x53, 0x00,
-            0xc3, 0x3f, 0x94, 0x61, 0xaa, 0x17, 0x4d, 0x8d, 0x79, 0x1d, 0x8b, 0x10, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x14, 0x2e, 0x28, 0x40, 0xe5, 0x9f, 0x4b, 0x4d, 0xe9,
-            0x87, 0xd3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe7, 0xc5, 0x00,
-            0x02, 0x00, 0x00, 0x00, 0x06, 0x00, 0x0b, 0x00, 0x50, 0x31, 0x00, 0x00, 0x00, 0x00,
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x76, 0x76, 0x01, 0x00, 0x00, 0x00, 0x76, 0x00,
-            0x00, 0x23, 0x3f, 0x52, 0x41, 0x44, 0x49, 0x41, 0x4e, 0x43, 0x45, 0x61, 0x50, 0x35,
-            0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x4d, 0x47, 0x49, 0x46, 0x38, 0x37, 0x61, 0x05,
-            0x50, 0x37, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc7, 0x37, 0x61,
-        ];
-
-        let decoder = IcoDecoder::new(Cursor::new(&data)).unwrap();
-        let mut buf = vec![0; usize::try_from(decoder.total_bytes()).unwrap()];
-        assert!(decoder.read_image(&mut buf).is_err());
-    }
-}
-- 
cgit v1.2.3