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/utils/mod.rs | 128 ------------------------------------------
 1 file changed, 128 deletions(-)
 delete mode 100644 vendor/image/src/utils/mod.rs

(limited to 'vendor/image/src/utils/mod.rs')

diff --git a/vendor/image/src/utils/mod.rs b/vendor/image/src/utils/mod.rs
deleted file mode 100644
index 529c60f..0000000
--- a/vendor/image/src/utils/mod.rs
+++ /dev/null
@@ -1,128 +0,0 @@
-//!  Utilities
-
-use std::iter::repeat;
-
-#[inline(always)]
-pub(crate) fn expand_packed<F>(buf: &mut [u8], channels: usize, bit_depth: u8, mut func: F)
-where
-    F: FnMut(u8, &mut [u8]),
-{
-    let pixels = buf.len() / channels * bit_depth as usize;
-    let extra = pixels % 8;
-    let entries = pixels / 8
-        + match extra {
-            0 => 0,
-            _ => 1,
-        };
-    let mask = ((1u16 << bit_depth) - 1) as u8;
-    let i = (0..entries)
-        .rev() // Reverse iterator
-        .flat_map(|idx|
-            // This has to be reversed to
-            (0..8/bit_depth).map(|i| i*bit_depth).zip(repeat(idx)))
-        .skip(extra);
-    let buf_len = buf.len();
-    let j_inv = (channels..buf_len).step_by(channels);
-    for ((shift, i), j_inv) in i.zip(j_inv) {
-        let j = buf_len - j_inv;
-        let pixel = (buf[i] & (mask << shift)) >> shift;
-        func(pixel, &mut buf[j..(j + channels)])
-    }
-}
-
-/// Expand a buffer of packed 1, 2, or 4 bits integers into u8's. Assumes that
-/// every `row_size` entries there are padding bits up to the next byte boundary.
-#[allow(dead_code)]
-// When no image formats that use it are enabled
-pub(crate) fn expand_bits(bit_depth: u8, row_size: u32, buf: &[u8]) -> Vec<u8> {
-    // Note: this conversion assumes that the scanlines begin on byte boundaries
-    let mask = (1u8 << bit_depth as usize) - 1;
-    let scaling_factor = 255 / ((1 << bit_depth as usize) - 1);
-    let bit_width = row_size * u32::from(bit_depth);
-    let skip = if bit_width % 8 == 0 {
-        0
-    } else {
-        (8 - bit_width % 8) / u32::from(bit_depth)
-    };
-    let row_len = row_size + skip;
-    let mut p = Vec::new();
-    let mut i = 0;
-    for v in buf {
-        for shift_inv in 1..=8 / bit_depth {
-            let shift = 8 - bit_depth * shift_inv;
-            // skip the pixels that can be neglected because scanlines should
-            // start at byte boundaries
-            if i % (row_len as usize) < (row_size as usize) {
-                let pixel = (v & mask << shift as usize) >> shift as usize;
-                p.push(pixel * scaling_factor);
-            }
-            i += 1;
-        }
-    }
-    p
-}
-
-/// Checks if the provided dimensions would cause an overflow.
-#[allow(dead_code)]
-// When no image formats that use it are enabled
-pub(crate) fn check_dimension_overflow(width: u32, height: u32, bytes_per_pixel: u8) -> bool {
-    width as u64 * height as u64 > std::u64::MAX / bytes_per_pixel as u64
-}
-
-#[allow(dead_code)]
-// When no image formats that use it are enabled
-pub(crate) fn vec_copy_to_u8<T>(vec: &[T]) -> Vec<u8>
-where
-    T: bytemuck::Pod,
-{
-    bytemuck::cast_slice(vec).to_owned()
-}
-
-#[inline]
-pub(crate) fn clamp<N>(a: N, min: N, max: N) -> N
-where
-    N: PartialOrd,
-{
-    if a < min {
-        min
-    } else if a > max {
-        max
-    } else {
-        a
-    }
-}
-
-#[cfg(test)]
-mod test {
-    #[test]
-    fn gray_to_luma8_skip() {
-        let check = |bit_depth, w, from, to| {
-            assert_eq!(super::expand_bits(bit_depth, w, from), to);
-        };
-        // Bit depth 1, skip is more than half a byte
-        check(
-            1,
-            10,
-            &[0b11110000, 0b11000000, 0b00001111, 0b11000000],
-            vec![
-                255, 255, 255, 255, 0, 0, 0, 0, 255, 255, 0, 0, 0, 0, 255, 255, 255, 255, 255, 255,
-            ],
-        );
-        // Bit depth 2, skip is more than half a byte
-        check(
-            2,
-            5,
-            &[0b11110000, 0b11000000, 0b00001111, 0b11000000],
-            vec![255, 255, 0, 0, 255, 0, 0, 255, 255, 255],
-        );
-        // Bit depth 2, skip is 0
-        check(
-            2,
-            4,
-            &[0b11110000, 0b00001111],
-            vec![255, 255, 0, 0, 0, 0, 255, 255],
-        );
-        // Bit depth 4, skip is half a byte
-        check(4, 1, &[0b11110011, 0b00001100], vec![255, 0]);
-    }
-}
-- 
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