Deleted vendor folder

1 files changed, 0 insertions, 657 deletions

diff --git a/vendor/jpeg-decoder/src/idct.rs b/vendor/jpeg-decoder/src/idct.rs
deleted file mode 100644
index ad8dc4c..0000000
--- a/vendor/jpeg-decoder/src/idct.rs
+++ /dev/null
@@ -1,657 +0,0 @@
-// Malicious JPEG files can cause operations in the idct to overflow.
-// One example is tests/crashtest/images/imagetestsuite/b0b8914cc5f7a6eff409f16d8cc236c5.jpg
-// That's why wrapping operators are needed.
-
-// Note: we have many values that are straight from a reference.
-// Do not warn on them or try to automatically change them.
-#![allow(clippy::excessive_precision)]
-// Note: consistency for unrolled, scaled offset loops
-#![allow(clippy::erasing_op)]
-#![allow(clippy::identity_op)]
-use crate::parser::Dimensions;
-use core::{convert::TryFrom, num::Wrapping};
-
-pub(crate) fn choose_idct_size(full_size: Dimensions, requested_size: Dimensions) -> usize {
-    fn scaled(len: u16, scale: usize) -> u16 {
-        ((len as u32 * scale as u32 - 1) / 8 + 1) as u16
-    }
-
-    for &scale in &[1, 2, 4] {
-        if scaled(full_size.width, scale) >= requested_size.width
-            || scaled(full_size.height, scale) >= requested_size.height
-        {
-            return scale;
-        }
-    }
-
-    8
-}
-
-#[test]
-fn test_choose_idct_size() {
-    assert_eq!(
-        choose_idct_size(
-            Dimensions {
-                width: 5472,
-                height: 3648
-            },
-            Dimensions {
-                width: 200,
-                height: 200
-            }
-        ),
-        1
-    );
-    assert_eq!(
-        choose_idct_size(
-            Dimensions {
-                width: 5472,
-                height: 3648
-            },
-            Dimensions {
-                width: 500,
-                height: 500
-            }
-        ),
-        1
-    );
-    assert_eq!(
-        choose_idct_size(
-            Dimensions {
-                width: 5472,
-                height: 3648
-            },
-            Dimensions {
-                width: 684,
-                height: 456
-            }
-        ),
-        1
-    );
-    assert_eq!(
-        choose_idct_size(
-            Dimensions {
-                width: 5472,
-                height: 3648
-            },
-            Dimensions {
-                width: 999,
-                height: 456
-            }
-        ),
-        1
-    );
-    assert_eq!(
-        choose_idct_size(
-            Dimensions {
-                width: 5472,
-                height: 3648
-            },
-            Dimensions {
-                width: 684,
-                height: 999
-            }
-        ),
-        1
-    );
-    assert_eq!(
-        choose_idct_size(
-            Dimensions {
-                width: 500,
-                height: 333
-            },
-            Dimensions {
-                width: 63,
-                height: 42
-            }
-        ),
-        1
-    );
-
-    assert_eq!(
-        choose_idct_size(
-            Dimensions {
-                width: 5472,
-                height: 3648
-            },
-            Dimensions {
-                width: 685,
-                height: 999
-            }
-        ),
-        2
-    );
-    assert_eq!(
-        choose_idct_size(
-            Dimensions {
-                width: 5472,
-                height: 3648
-            },
-            Dimensions {
-                width: 1000,
-                height: 1000
-            }
-        ),
-        2
-    );
-    assert_eq!(
-        choose_idct_size(
-            Dimensions {
-                width: 5472,
-                height: 3648
-            },
-            Dimensions {
-                width: 1400,
-                height: 1400
-            }
-        ),
-        4
-    );
-
-    assert_eq!(
-        choose_idct_size(
-            Dimensions {
-                width: 5472,
-                height: 3648
-            },
-            Dimensions {
-                width: 5472,
-                height: 3648
-            }
-        ),
-        8
-    );
-    assert_eq!(
-        choose_idct_size(
-            Dimensions {
-                width: 5472,
-                height: 3648
-            },
-            Dimensions {
-                width: 16384,
-                height: 16384
-            }
-        ),
-        8
-    );
-    assert_eq!(
-        choose_idct_size(
-            Dimensions {
-                width: 1,
-                height: 1
-            },
-            Dimensions {
-                width: 65535,
-                height: 65535
-            }
-        ),
-        8
-    );
-    assert_eq!(
-        choose_idct_size(
-            Dimensions {
-                width: 5472,
-                height: 3648
-            },
-            Dimensions {
-                width: 16384,
-                height: 16384
-            }
-        ),
-        8
-    );
-}
-
-pub(crate) fn dequantize_and_idct_block(
-    scale: usize,
-    coefficients: &[i16; 64],
-    quantization_table: &[u16; 64],
-    output_linestride: usize,
-    output: &mut [u8],
-) {
-    match scale {
-        8 => dequantize_and_idct_block_8x8(
-            coefficients,
-            quantization_table,
-            output_linestride,
-            output,
-        ),
-        4 => dequantize_and_idct_block_4x4(
-            coefficients,
-            quantization_table,
-            output_linestride,
-            output,
-        ),
-        2 => dequantize_and_idct_block_2x2(
-            coefficients,
-            quantization_table,
-            output_linestride,
-            output,
-        ),
-        1 => dequantize_and_idct_block_1x1(
-            coefficients,
-            quantization_table,
-            output_linestride,
-            output,
-        ),
-        _ => panic!("Unsupported IDCT scale {}/8", scale),
-    }
-}
-
-pub fn dequantize_and_idct_block_8x8(
-    coefficients: &[i16; 64],
-    quantization_table: &[u16; 64],
-    output_linestride: usize,
-    output: &mut [u8],
-) {
-    #[cfg(not(feature = "platform_independent"))]
-    if let Some(idct) = crate::arch::get_dequantize_and_idct_block_8x8() {
-        #[allow(unsafe_code)]
-        unsafe {
-            return idct(coefficients, quantization_table, output_linestride, output);
-        }
-    }
-
-    let output = output.chunks_mut(output_linestride);
-    dequantize_and_idct_block_8x8_inner(coefficients, quantization_table, output)
-}
-
-// This is based on stb_image's 'stbi__idct_block'.
-fn dequantize_and_idct_block_8x8_inner<'a, I>(
-    coefficients: &[i16; 64],
-    quantization_table: &[u16; 64],
-    output: I,
-) where
-    I: IntoIterator<Item = &'a mut [u8]>,
-    I::IntoIter: ExactSizeIterator<Item = &'a mut [u8]>,
-{
-    let output = output.into_iter();
-    debug_assert!(
-        output.len() >= 8,
-        "Output iterator has the wrong length: {}",
-        output.len()
-    );
-
-    let mut temp = [Wrapping(0); 64];
-
-    // columns
-    for i in 0..8 {
-        if coefficients[i + 8] == 0
-            && coefficients[i + 16] == 0
-            && coefficients[i + 24] == 0
-            && coefficients[i + 32] == 0
-            && coefficients[i + 40] == 0
-            && coefficients[i + 48] == 0
-            && coefficients[i + 56] == 0
-        {
-            let dcterm = dequantize(coefficients[i], quantization_table[i]) << 2;
-            temp[i] = dcterm;
-            temp[i + 8] = dcterm;
-            temp[i + 16] = dcterm;
-            temp[i + 24] = dcterm;
-            temp[i + 32] = dcterm;
-            temp[i + 40] = dcterm;
-            temp[i + 48] = dcterm;
-            temp[i + 56] = dcterm;
-        } else {
-            let s0 = dequantize(coefficients[i], quantization_table[i]);
-            let s1 = dequantize(coefficients[i + 8], quantization_table[i + 8]);
-            let s2 = dequantize(coefficients[i + 16], quantization_table[i + 16]);
-            let s3 = dequantize(coefficients[i + 24], quantization_table[i + 24]);
-            let s4 = dequantize(coefficients[i + 32], quantization_table[i + 32]);
-            let s5 = dequantize(coefficients[i + 40], quantization_table[i + 40]);
-            let s6 = dequantize(coefficients[i + 48], quantization_table[i + 48]);
-            let s7 = dequantize(coefficients[i + 56], quantization_table[i + 56]);
-
-            let Kernel {
-                xs: [x0, x1, x2, x3],
-                ts: [t0, t1, t2, t3],
-            } = kernel(
-                [s0, s1, s2, s3, s4, s5, s6, s7],
-                // constants scaled things up by 1<<12; let's bring them back
-                // down, but keep 2 extra bits of precision
-                512,
-            );
-
-            temp[i] = (x0 + t3) >> 10;
-            temp[i + 56] = (x0 - t3) >> 10;
-            temp[i + 8] = (x1 + t2) >> 10;
-            temp[i + 48] = (x1 - t2) >> 10;
-            temp[i + 16] = (x2 + t1) >> 10;
-            temp[i + 40] = (x2 - t1) >> 10;
-            temp[i + 24] = (x3 + t0) >> 10;
-            temp[i + 32] = (x3 - t0) >> 10;
-        }
-    }
-
-    for (chunk, output_chunk) in temp.chunks_exact(8).zip(output) {
-        let chunk = <&[_; 8]>::try_from(chunk).unwrap();
-
-        // constants scaled things up by 1<<12, plus we had 1<<2 from first
-        // loop, plus horizontal and vertical each scale by sqrt(8) so together
-        // we've got an extra 1<<3, so 1<<17 total we need to remove.
-        // so we want to round that, which means adding 0.5 * 1<<17,
-        // aka 65536. Also, we'll end up with -128 to 127 that we want
-        // to encode as 0..255 by adding 128, so we'll add that before the shift
-        const X_SCALE: i32 = 65536 + (128 << 17);
-
-        // eliminate downstream bounds checks
-        let output_chunk = &mut output_chunk[..8];
-
-        // TODO When the minimum rust version supports it
-        // let [s0, rest @ ..] = chunk;
-        let (s0, rest) = chunk.split_first().unwrap();
-        if *rest == [Wrapping(0); 7] {
-            let dcterm = stbi_clamp((stbi_fsh(*s0) + Wrapping(X_SCALE)) >> 17);
-            output_chunk[0] = dcterm;
-            output_chunk[1] = dcterm;
-            output_chunk[2] = dcterm;
-            output_chunk[3] = dcterm;
-            output_chunk[4] = dcterm;
-            output_chunk[5] = dcterm;
-            output_chunk[6] = dcterm;
-            output_chunk[7] = dcterm;
-        } else {
-            let Kernel {
-                xs: [x0, x1, x2, x3],
-                ts: [t0, t1, t2, t3],
-            } = kernel(*chunk, X_SCALE);
-
-            output_chunk[0] = stbi_clamp((x0 + t3) >> 17);
-            output_chunk[7] = stbi_clamp((x0 - t3) >> 17);
-            output_chunk[1] = stbi_clamp((x1 + t2) >> 17);
-            output_chunk[6] = stbi_clamp((x1 - t2) >> 17);
-            output_chunk[2] = stbi_clamp((x2 + t1) >> 17);
-            output_chunk[5] = stbi_clamp((x2 - t1) >> 17);
-            output_chunk[3] = stbi_clamp((x3 + t0) >> 17);
-            output_chunk[4] = stbi_clamp((x3 - t0) >> 17);
-        }
-    }
-}
-
-struct Kernel {
-    xs: [Wrapping<i32>; 4],
-    ts: [Wrapping<i32>; 4],
-}
-
-#[inline]
-fn kernel_x([s0, s2, s4, s6]: [Wrapping<i32>; 4], x_scale: i32) -> [Wrapping<i32>; 4] {
-    // Even `chunk` indicies
-    let (t2, t3);
-    {
-        let p2 = s2;
-        let p3 = s6;
-
-        let p1 = (p2 + p3) * stbi_f2f(0.5411961);
-        t2 = p1 + p3 * stbi_f2f(-1.847759065);
-        t3 = p1 + p2 * stbi_f2f(0.765366865);
-    }
-
-    let (t0, t1);
-    {
-        let p2 = s0;
-        let p3 = s4;
-
-        t0 = stbi_fsh(p2 + p3);
-        t1 = stbi_fsh(p2 - p3);
-    }
-
-    let x0 = t0 + t3;
-    let x3 = t0 - t3;
-    let x1 = t1 + t2;
-    let x2 = t1 - t2;
-
-    let x_scale = Wrapping(x_scale);
-
-    [x0 + x_scale, x1 + x_scale, x2 + x_scale, x3 + x_scale]
-}
-
-#[inline]
-fn kernel_t([s1, s3, s5, s7]: [Wrapping<i32>; 4]) -> [Wrapping<i32>; 4] {
-    // Odd `chunk` indicies
-    let mut t0 = s7;
-    let mut t1 = s5;
-    let mut t2 = s3;
-    let mut t3 = s1;
-
-    let p3 = t0 + t2;
-    let p4 = t1 + t3;
-    let p1 = t0 + t3;
-    let p2 = t1 + t2;
-    let p5 = (p3 + p4) * stbi_f2f(1.175875602);
-
-    t0 *= stbi_f2f(0.298631336);
-    t1 *= stbi_f2f(2.053119869);
-    t2 *= stbi_f2f(3.072711026);
-    t3 *= stbi_f2f(1.501321110);
-
-    let p1 = p5 + p1 * stbi_f2f(-0.899976223);
-    let p2 = p5 + p2 * stbi_f2f(-2.562915447);
-    let p3 = p3 * stbi_f2f(-1.961570560);
-    let p4 = p4 * stbi_f2f(-0.390180644);
-
-    t3 += p1 + p4;
-    t2 += p2 + p3;
-    t1 += p2 + p4;
-    t0 += p1 + p3;
-
-    [t0, t1, t2, t3]
-}
-
-#[inline]
-fn kernel([s0, s1, s2, s3, s4, s5, s6, s7]: [Wrapping<i32>; 8], x_scale: i32) -> Kernel {
-    Kernel {
-        xs: kernel_x([s0, s2, s4, s6], x_scale),
-        ts: kernel_t([s1, s3, s5, s7]),
-    }
-}
-
-#[inline(always)]
-fn dequantize(c: i16, q: u16) -> Wrapping<i32> {
-    Wrapping(i32::from(c) * i32::from(q))
-}
-
-// 4x4 and 2x2 IDCT based on Rakesh Dugad and Narendra Ahuja: "A Fast Scheme for Image Size Change in the Compressed Domain" (2001).
-// http://sylvana.net/jpegcrop/jidctred/
-fn dequantize_and_idct_block_4x4(
-    coefficients: &[i16; 64],
-    quantization_table: &[u16; 64],
-    output_linestride: usize,
-    output: &mut [u8],
-) {
-    debug_assert_eq!(coefficients.len(), 64);
-    let mut temp = [Wrapping(0i32); 4 * 4];
-
-    const CONST_BITS: usize = 12;
-    const PASS1_BITS: usize = 2;
-    const FINAL_BITS: usize = CONST_BITS + PASS1_BITS + 3;
-
-    // columns
-    for i in 0..4 {
-        let s0 = Wrapping(coefficients[i + 8 * 0] as i32 * quantization_table[i + 8 * 0] as i32);
-        let s1 = Wrapping(coefficients[i + 8 * 1] as i32 * quantization_table[i + 8 * 1] as i32);
-        let s2 = Wrapping(coefficients[i + 8 * 2] as i32 * quantization_table[i + 8 * 2] as i32);
-        let s3 = Wrapping(coefficients[i + 8 * 3] as i32 * quantization_table[i + 8 * 3] as i32);
-
-        let x0 = (s0 + s2) << PASS1_BITS;
-        let x2 = (s0 - s2) << PASS1_BITS;
-
-        let p1 = (s1 + s3) * stbi_f2f(0.541196100);
-        let t0 = (p1 + s3 * stbi_f2f(-1.847759065) + Wrapping(512)) >> (CONST_BITS - PASS1_BITS);
-        let t2 = (p1 + s1 * stbi_f2f(0.765366865) + Wrapping(512)) >> (CONST_BITS - PASS1_BITS);
-
-        temp[i + 4 * 0] = x0 + t2;
-        temp[i + 4 * 3] = x0 - t2;
-        temp[i + 4 * 1] = x2 + t0;
-        temp[i + 4 * 2] = x2 - t0;
-    }
-
-    for i in 0..4 {
-        let s0 = temp[i * 4 + 0];
-        let s1 = temp[i * 4 + 1];
-        let s2 = temp[i * 4 + 2];
-        let s3 = temp[i * 4 + 3];
-
-        let x0 = (s0 + s2) << CONST_BITS;
-        let x2 = (s0 - s2) << CONST_BITS;
-
-        let p1 = (s1 + s3) * stbi_f2f(0.541196100);
-        let t0 = p1 + s3 * stbi_f2f(-1.847759065);
-        let t2 = p1 + s1 * stbi_f2f(0.765366865);
-
-        // constants scaled things up by 1<<12, plus we had 1<<2 from first
-        // loop, plus horizontal and vertical each scale by sqrt(8) so together
-        // we've got an extra 1<<3, so 1<<17 total we need to remove.
-        // so we want to round that, which means adding 0.5 * 1<<17,
-        // aka 65536. Also, we'll end up with -128 to 127 that we want
-        // to encode as 0..255 by adding 128, so we'll add that before the shift
-        let x0 = x0 + Wrapping(1 << (FINAL_BITS - 1)) + Wrapping(128 << FINAL_BITS);
-        let x2 = x2 + Wrapping(1 << (FINAL_BITS - 1)) + Wrapping(128 << FINAL_BITS);
-
-        let output = &mut output[i * output_linestride..][..4];
-        output[0] = stbi_clamp((x0 + t2) >> FINAL_BITS);
-        output[3] = stbi_clamp((x0 - t2) >> FINAL_BITS);
-        output[1] = stbi_clamp((x2 + t0) >> FINAL_BITS);
-        output[2] = stbi_clamp((x2 - t0) >> FINAL_BITS);
-    }
-}
-
-fn dequantize_and_idct_block_2x2(
-    coefficients: &[i16; 64],
-    quantization_table: &[u16; 64],
-    output_linestride: usize,
-    output: &mut [u8],
-) {
-    debug_assert_eq!(coefficients.len(), 64);
-
-    const SCALE_BITS: usize = 3;
-
-    // Column 0
-    let s00 = Wrapping(coefficients[8 * 0] as i32 * quantization_table[8 * 0] as i32);
-    let s10 = Wrapping(coefficients[8 * 1] as i32 * quantization_table[8 * 1] as i32);
-
-    let x0 = s00 + s10;
-    let x2 = s00 - s10;
-
-    // Column 1
-    let s01 = Wrapping(coefficients[8 * 0 + 1] as i32 * quantization_table[8 * 0 + 1] as i32);
-    let s11 = Wrapping(coefficients[8 * 1 + 1] as i32 * quantization_table[8 * 1 + 1] as i32);
-
-    let x1 = s01 + s11;
-    let x3 = s01 - s11;
-
-    let x0 = x0 + Wrapping(1 << (SCALE_BITS - 1)) + Wrapping(128 << SCALE_BITS);
-    let x2 = x2 + Wrapping(1 << (SCALE_BITS - 1)) + Wrapping(128 << SCALE_BITS);
-
-    // Row 0
-    output[0] = stbi_clamp((x0 + x1) >> SCALE_BITS);
-    output[1] = stbi_clamp((x0 - x1) >> SCALE_BITS);
-
-    // Row 1
-    output[output_linestride + 0] = stbi_clamp((x2 + x3) >> SCALE_BITS);
-    output[output_linestride + 1] = stbi_clamp((x2 - x3) >> SCALE_BITS);
-}
-
-fn dequantize_and_idct_block_1x1(
-    coefficients: &[i16; 64],
-    quantization_table: &[u16; 64],
-    _output_linestride: usize,
-    output: &mut [u8],
-) {
-    debug_assert_eq!(coefficients.len(), 64);
-
-    let s0 = (Wrapping(coefficients[0] as i32 * quantization_table[0] as i32) + Wrapping(128 * 8)) / Wrapping(8);
-    output[0] = stbi_clamp(s0);
-}
-
-// take a -128..127 value and stbi__clamp it and convert to 0..255
-fn stbi_clamp(x: Wrapping<i32>) -> u8 {
-    x.0.max(0).min(255) as u8
-}
-
-fn stbi_f2f(x: f32) -> Wrapping<i32> {
-    Wrapping((x * 4096.0 + 0.5) as i32)
-}
-
-fn stbi_fsh(x: Wrapping<i32>) -> Wrapping<i32> {
-    x << 12
-}
-
-#[test]
-fn test_dequantize_and_idct_block_8x8() {
-    #[cfg_attr(rustfmt, rustfmt_skip)]
-    let coefficients: [i16; 8 * 8] = [
-        -14, -39, 58, -2, 3, 3, 0, 1,
-        11, 27, 4, -3, 3, 0, 1, 0,
-        -6, -13, -9, -1, -2, -1, 0, 0,
-        -4, 0, -1, -2, 0, 0, 0, 0,
-        3, 0, 0, 0, 0, 0, 0, 0,
-        -3, -2, 0, 0, 0, 0, 0, 0,
-        0, 0, 0, 0, 0, 0, 0, 0,
-        0, 0, 0, 0, 0, 0, 0, 0
-    ];
-
-    #[cfg_attr(rustfmt, rustfmt_skip)]
-    let quantization_table: [u16; 8 * 8] = [
-        8, 6, 5, 8, 12, 20, 26, 31,
-        6, 6, 7, 10, 13, 29, 30, 28,
-        7, 7, 8, 12, 20, 29, 35, 28,
-        7, 9, 11, 15, 26, 44, 40, 31,
-        9, 11, 19, 28, 34, 55, 52, 39,
-        12, 18, 28, 32, 41, 52, 57, 46,
-        25, 32, 39, 44, 52, 61, 60, 51,
-        36, 46, 48, 49, 56, 50, 52, 50
-    ];
-    let output_linestride: usize = 8;
-    let mut output = [0u8; 8 * 8];
-    dequantize_and_idct_block_8x8(
-        &coefficients,
-        &quantization_table,
-        output_linestride,
-        &mut output,
-    );
-    #[cfg_attr(rustfmt, rustfmt_skip)]
-    let expected_output = [
-        118, 92, 110, 83, 77, 93, 144, 198,
-        172, 116, 114, 87, 78, 93, 146, 191,
-        194, 107, 91, 76, 71, 93, 160, 198,
-        196, 100, 80, 74, 67, 92, 174, 209,
-        182, 104, 88, 81, 68, 89, 178, 206,
-        105, 64, 59, 59, 63, 94, 183, 201,
-        35, 27, 28, 37, 72, 121, 203, 204,
-        37, 45, 41, 47, 98, 154, 223, 208
-    ];
-    for i in 0..64 {
-        assert!((output[i] as i16 - expected_output[i] as i16).abs() <= 1);
-    }
-}
-
-#[test]
-fn test_dequantize_and_idct_block_8x8_all_zero() {
-    let mut output = [0u8; 8 * 8];
-    dequantize_and_idct_block_8x8(&[0; 8 * 8], &[666; 8 * 8], 8, &mut output);
-    assert_eq!(&output[..], &[128; 8 * 8][..]);
-}
-
-#[test]
-fn test_dequantize_and_idct_block_8x8_saturated() {
-    // Arch-specific IDCT implementations need not handle i16::MAX values.
-    #[cfg(not(feature = "platform_independent"))]
-    if crate::arch::get_dequantize_and_idct_block_8x8().is_some() {
-        return;
-    }
-    let mut output = [0u8; 8 * 8];
-    dequantize_and_idct_block_8x8(&[i16::MAX; 8 * 8], &[u16::MAX; 8 * 8], 8, &mut output);
-    #[cfg_attr(rustfmt, rustfmt_skip)]
-    let expected = [
-        0, 0, 0, 255, 255, 0, 0, 255,
-        0, 0, 215, 0, 0, 255, 255, 0,
-        255, 255, 255, 255, 255, 0, 0, 255,
-        0, 0, 255, 0, 255, 0, 255, 255,
-        0, 0, 255, 255, 0, 255, 0, 0,
-        255, 255, 0, 255, 255, 255, 170, 0,
-        0, 255, 0, 0, 0, 0, 0, 255,
-        255, 255, 0, 255, 0, 255, 0, 0
-    ];
-    assert_eq!(&output[..], &expected[..]);
-}