/rust/registry/src/index.crates.io-6f17d22bba15001f/qoi-0.4.1/src/pixel.rs

Source (jump to first uncovered line)
use crate::consts::{QOI_OP_DIFF, QOI_OP_LUMA, QOI_OP_RGB, QOI_OP_RGBA};
use crate::error::Result;
use crate::utils::Writer;
use bytemuck::{cast, Pod};

#[derive(Copy, Clone, PartialEq, Eq, Debug)]
#[repr(transparent)]
pub struct Pixel<const N: usize>([u8; N]);

impl<const N: usize> Pixel<N> {
    #[inline]
    pub const fn new() -> Self {
        Self([0; N])
    }

    #[inline]
    pub fn read(&mut self, s: &[u8]) {
        if s.len() == N {
            let mut i = 0;
            while i < N {
                self.0[i] = s[i];
                i += 1;
            }
        } else {
            unreachable!();
        }
    }

    #[inline]
    pub fn update<const M: usize>(&mut self, px: Pixel<M>) {
        let mut i = 0;
        while i < M && i < N {
            self.0[i] = px.0[i];
            i += 1;
        }
    }

    #[inline]
    pub fn update_rgb(&mut self, r: u8, g: u8, b: u8) {
        self.0[0] = r;
        self.0[1] = g;
        self.0[2] = b;
    }

    #[inline]
    pub fn update_rgba(&mut self, r: u8, g: u8, b: u8, a: u8) {
        self.0[0] = r;
        self.0[1] = g;
        self.0[2] = b;
        if N >= 4 {
            self.0[3] = a;
        }
    }

    #[inline]
    pub fn update_diff(&mut self, b1: u8) {
        self.0[0] = self.0[0].wrapping_add((b1 >> 4) & 0x03).wrapping_sub(2);
        self.0[1] = self.0[1].wrapping_add((b1 >> 2) & 0x03).wrapping_sub(2);
        self.0[2] = self.0[2].wrapping_add(b1 & 0x03).wrapping_sub(2);
    }

    #[inline]
    pub fn update_luma(&mut self, b1: u8, b2: u8) {
        let vg = (b1 & 0x3f).wrapping_sub(32);
        let vg_8 = vg.wrapping_sub(8);
        let vr = vg_8.wrapping_add((b2 >> 4) & 0x0f);
        let vb = vg_8.wrapping_add(b2 & 0x0f);
        self.0[0] = self.0[0].wrapping_add(vr);
        self.0[1] = self.0[1].wrapping_add(vg);
        self.0[2] = self.0[2].wrapping_add(vb);
    }

    #[inline]
    pub const fn as_rgba(self, with_a: u8) -> Pixel<4> {
        let mut i = 0;
        let mut out = Pixel::new();
        while i < N {
            out.0[i] = self.0[i];
            i += 1;
        }
        if N < 4 {
            out.0[3] = with_a;
        }
        out
    }

    #[inline]
    pub const fn r(self) -> u8 {
        self.0[0]
    }

    #[inline]
    pub const fn g(self) -> u8 {
        self.0[1]
    }

    #[inline]
    pub const fn b(self) -> u8 {
        self.0[2]
    }

    #[inline]
    pub const fn with_a(mut self, value: u8) -> Self {
        if N >= 4 {
            self.0[3] = value;
        }
        self
    }

    #[inline]
    pub const fn a_or(self, value: u8) -> u8 {
        if N < 4 {
            value
        } else {
            self.0[3]
        }
    }

    #[inline]
    #[allow(clippy::cast_lossless, clippy::cast_possible_truncation)]
    pub fn hash_index(self) -> u8
    where
        [u8; N]: Pod,
    {
        // credits for the initial idea: @zakarumych
        let v = if N == 4 {
            u32::from_ne_bytes(cast(self.0))
        } else {
            u32::from_ne_bytes([self.0[0], self.0[1], self.0[2], 0xff])
        } as u64;
        let s = ((v & 0xff00_ff00) << 32) | (v & 0x00ff_00ff);
        s.wrapping_mul(0x0300_0700_0005_000b_u64).to_le().swap_bytes() as u8 & 63
    }

    #[inline]
    pub fn rgb_add(&mut self, r: u8, g: u8, b: u8) {
        self.0[0] = self.0[0].wrapping_add(r);
        self.0[1] = self.0[1].wrapping_add(g);
        self.0[2] = self.0[2].wrapping_add(b);
    }

    #[inline]
    pub fn encode_into<W: Writer>(&self, px_prev: Self, buf: W) -> Result<W> {
        if N == 3 || self.a_or(0) == px_prev.a_or(0) {
            let vg = self.g().wrapping_sub(px_prev.g());
            let vg_32 = vg.wrapping_add(32);
            if vg_32 | 63 == 63 {
                let vr = self.r().wrapping_sub(px_prev.r());
                let vb = self.b().wrapping_sub(px_prev.b());
                let vg_r = vr.wrapping_sub(vg);
                let vg_b = vb.wrapping_sub(vg);
                let (vr_2, vg_2, vb_2) =
                    (vr.wrapping_add(2), vg.wrapping_add(2), vb.wrapping_add(2));
                if vr_2 | vg_2 | vb_2 | 3 == 3 {
                    buf.write_one(QOI_OP_DIFF | vr_2 << 4 | vg_2 << 2 | vb_2)
                } else {
                    let (vg_r_8, vg_b_8) = (vg_r.wrapping_add(8), vg_b.wrapping_add(8));
                    if vg_r_8 | vg_b_8 | 15 == 15 {
                        buf.write_many(&[QOI_OP_LUMA | vg_32, vg_r_8 << 4 | vg_b_8])
                    } else {
                        buf.write_many(&[QOI_OP_RGB, self.r(), self.g(), self.b()])
                    }
                }
            } else {
                buf.write_many(&[QOI_OP_RGB, self.r(), self.g(), self.b()])
            }
        } else {
            buf.write_many(&[QOI_OP_RGBA, self.r(), self.g(), self.b(), self.a_or(0xff)])
        }
    }
}

impl<const N: usize> From<Pixel<N>> for [u8; N] {
    #[inline(always)]
    fn from(px: Pixel<N>) -> Self {
        px.0
    }
}

pub trait SupportedChannels {}

impl SupportedChannels for Pixel<3> {}
impl SupportedChannels for Pixel<4> {}

Line	Count	Source (jump to first uncovered line)
1		use crate::consts::{QOI_OP_DIFF, QOI_OP_LUMA, QOI_OP_RGB, QOI_OP_RGBA};
2		use crate::error::Result;
3		use crate::utils::Writer;
4		use bytemuck::{cast, Pod};
5
6		#[derive(Copy, Clone, PartialEq, Eq, Debug)]
7		#[repr(transparent)]
8		pub struct Pixel<const N: usize>([u8; N]);
9
10		impl<const N: usize> Pixel<N> {
11		#[inline]
12	0	pub const fn new() -> Self {
13	0	Self([0; N])
14	0	} Unexecuted instantiation: <qoi::pixel::Pixel<3>>::new Unexecuted instantiation: <qoi::pixel::Pixel<4>>::new Unexecuted instantiation: <qoi::pixel::Pixel<_>>::new Unexecuted instantiation: <qoi::pixel::Pixel<3>>::new Unexecuted instantiation: <qoi::pixel::Pixel<4>>::new Unexecuted instantiation: <qoi::pixel::Pixel<3>>::new Unexecuted instantiation: <qoi::pixel::Pixel<4>>::new Unexecuted instantiation: <qoi::pixel::Pixel<3>>::new Unexecuted instantiation: <qoi::pixel::Pixel<4>>::new Unexecuted instantiation: <qoi::pixel::Pixel<3>>::new Unexecuted instantiation: <qoi::pixel::Pixel<4>>::new Unexecuted instantiation: <qoi::pixel::Pixel<3>>::new Unexecuted instantiation: <qoi::pixel::Pixel<4>>::new Unexecuted instantiation: <qoi::pixel::Pixel<3>>::new Unexecuted instantiation: <qoi::pixel::Pixel<4>>::new Unexecuted instantiation: <qoi::pixel::Pixel<3>>::new Unexecuted instantiation: <qoi::pixel::Pixel<4>>::new Unexecuted instantiation: <qoi::pixel::Pixel<3>>::new Unexecuted instantiation: <qoi::pixel::Pixel<4>>::new Unexecuted instantiation: <qoi::pixel::Pixel<3>>::new Unexecuted instantiation: <qoi::pixel::Pixel<4>>::new Unexecuted instantiation: <qoi::pixel::Pixel<3>>::new Unexecuted instantiation: <qoi::pixel::Pixel<4>>::new
15
16		#[inline]
17	0	pub fn read(&mut self, s: &[u8]) {
18	0	if s.len() == N {
19	0	let mut i = 0;
20	0	while i < N {
21	0	self.0[i] = s[i];
22	0	i += 1;
23	0	}
24		} else {
25	0	unreachable!();
26		}
27	0	} Unexecuted instantiation: <qoi::pixel::Pixel<_>>::read Unexecuted instantiation: <qoi::pixel::Pixel<3>>::read Unexecuted instantiation: <qoi::pixel::Pixel<4>>::read
28
29		#[inline]
30	0	pub fn update<const M: usize>(&mut self, px: Pixel<M>) {
31	0	let mut i = 0;
32	0	while i < M && i < N {
33	0	self.0[i] = px.0[i];
34	0	i += 1;
35	0	}
36	0	}
37
38		#[inline]
39	0	pub fn update_rgb(&mut self, r: u8, g: u8, b: u8) {
40	0	self.0[0] = r;
41	0	self.0[1] = g;
42	0	self.0[2] = b;
43	0	} Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_rgb Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_rgb Unexecuted instantiation: <qoi::pixel::Pixel<_>>::update_rgb Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_rgb Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_rgb Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_rgb Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_rgb Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_rgb Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_rgb Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_rgb Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_rgb Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_rgb Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_rgb Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_rgb Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_rgb Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_rgb Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_rgb Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_rgb Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_rgb Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_rgb Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_rgb Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_rgb Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_rgb
44
45		#[inline]
46	0	pub fn update_rgba(&mut self, r: u8, g: u8, b: u8, a: u8) {
47	0	self.0[0] = r;
48	0	self.0[1] = g;
49	0	self.0[2] = b;
50	0	if N >= 4 {
51	0	self.0[3] = a;
52	0	}
53	0	} Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_rgba Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_rgba Unexecuted instantiation: <qoi::pixel::Pixel<_>>::update_rgba Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_rgba Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_rgba Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_rgba Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_rgba Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_rgba Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_rgba Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_rgba Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_rgba Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_rgba Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_rgba Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_rgba Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_rgba Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_rgba Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_rgba Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_rgba Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_rgba Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_rgba Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_rgba Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_rgba Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_rgba
54
55		#[inline]
56	0	pub fn update_diff(&mut self, b1: u8) {
57	0	self.0[0] = self.0[0].wrapping_add((b1 >> 4) & 0x03).wrapping_sub(2);
58	0	self.0[1] = self.0[1].wrapping_add((b1 >> 2) & 0x03).wrapping_sub(2);
59	0	self.0[2] = self.0[2].wrapping_add(b1 & 0x03).wrapping_sub(2);
60	0	} Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_diff Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_diff Unexecuted instantiation: <qoi::pixel::Pixel<_>>::update_diff Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_diff Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_diff Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_diff Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_diff Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_diff Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_diff Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_diff Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_diff Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_diff Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_diff Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_diff Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_diff Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_diff Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_diff Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_diff Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_diff Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_diff Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_diff Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_diff Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_diff
61
62		#[inline]
63	0	pub fn update_luma(&mut self, b1: u8, b2: u8) {
64	0	let vg = (b1 & 0x3f).wrapping_sub(32);
65	0	let vg_8 = vg.wrapping_sub(8);
66	0	let vr = vg_8.wrapping_add((b2 >> 4) & 0x0f);
67	0	let vb = vg_8.wrapping_add(b2 & 0x0f);
68	0	self.0[0] = self.0[0].wrapping_add(vr);
69	0	self.0[1] = self.0[1].wrapping_add(vg);
70	0	self.0[2] = self.0[2].wrapping_add(vb);
71	0	} Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_luma Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_luma Unexecuted instantiation: <qoi::pixel::Pixel<_>>::update_luma Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_luma Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_luma Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_luma Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_luma Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_luma Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_luma Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_luma Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_luma Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_luma Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_luma Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_luma Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_luma Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_luma Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_luma Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_luma Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_luma Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_luma Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_luma Unexecuted instantiation: <qoi::pixel::Pixel<3>>::update_luma Unexecuted instantiation: <qoi::pixel::Pixel<4>>::update_luma
72
73		#[inline]
74	0	pub const fn as_rgba(self, with_a: u8) -> Pixel<4> {
75	0	let mut i = 0;
76	0	let mut out = Pixel::new();
77	0	while i < N {
78	0	out.0[i] = self.0[i];
79	0	i += 1;
80	0	}
81	0	if N < 4 {
82	0	out.0[3] = with_a;
83	0	}
84	0	out
85	0	} Unexecuted instantiation: <qoi::pixel::Pixel<_>>::as_rgba Unexecuted instantiation: <qoi::pixel::Pixel<3>>::as_rgba Unexecuted instantiation: <qoi::pixel::Pixel<4>>::as_rgba
86
87		#[inline]
88	0	pub const fn r(self) -> u8 {
89	0	self.0[0]
90	0	} Unexecuted instantiation: <qoi::pixel::Pixel<_>>::r Unexecuted instantiation: <qoi::pixel::Pixel<3>>::r Unexecuted instantiation: <qoi::pixel::Pixel<4>>::r
91
92		#[inline]
93	0	pub const fn g(self) -> u8 {
94	0	self.0[1]
95	0	} Unexecuted instantiation: <qoi::pixel::Pixel<_>>::g Unexecuted instantiation: <qoi::pixel::Pixel<3>>::g Unexecuted instantiation: <qoi::pixel::Pixel<4>>::g
96
97		#[inline]
98	0	pub const fn b(self) -> u8 {
99	0	self.0[2]
100	0	} Unexecuted instantiation: <qoi::pixel::Pixel<_>>::b Unexecuted instantiation: <qoi::pixel::Pixel<3>>::b Unexecuted instantiation: <qoi::pixel::Pixel<4>>::b
101
102		#[inline]
103	0	pub const fn with_a(mut self, value: u8) -> Self {
104	0	if N >= 4 {
105	0	self.0[3] = value;
106	0	}
107	0	self
108	0	} Unexecuted instantiation: <qoi::pixel::Pixel<3>>::with_a Unexecuted instantiation: <qoi::pixel::Pixel<4>>::with_a Unexecuted instantiation: <qoi::pixel::Pixel<_>>::with_a Unexecuted instantiation: <qoi::pixel::Pixel<3>>::with_a Unexecuted instantiation: <qoi::pixel::Pixel<4>>::with_a Unexecuted instantiation: <qoi::pixel::Pixel<3>>::with_a Unexecuted instantiation: <qoi::pixel::Pixel<4>>::with_a Unexecuted instantiation: <qoi::pixel::Pixel<3>>::with_a Unexecuted instantiation: <qoi::pixel::Pixel<4>>::with_a Unexecuted instantiation: <qoi::pixel::Pixel<3>>::with_a Unexecuted instantiation: <qoi::pixel::Pixel<4>>::with_a Unexecuted instantiation: <qoi::pixel::Pixel<3>>::with_a Unexecuted instantiation: <qoi::pixel::Pixel<4>>::with_a Unexecuted instantiation: <qoi::pixel::Pixel<3>>::with_a Unexecuted instantiation: <qoi::pixel::Pixel<4>>::with_a Unexecuted instantiation: <qoi::pixel::Pixel<3>>::with_a Unexecuted instantiation: <qoi::pixel::Pixel<4>>::with_a Unexecuted instantiation: <qoi::pixel::Pixel<3>>::with_a Unexecuted instantiation: <qoi::pixel::Pixel<4>>::with_a Unexecuted instantiation: <qoi::pixel::Pixel<3>>::with_a Unexecuted instantiation: <qoi::pixel::Pixel<4>>::with_a Unexecuted instantiation: <qoi::pixel::Pixel<3>>::with_a Unexecuted instantiation: <qoi::pixel::Pixel<4>>::with_a
109
110		#[inline]
111	0	pub const fn a_or(self, value: u8) -> u8 {
112	0	if N < 4 {
113	0	value
114		} else {
115	0	self.0[3]
116		}
117	0	} Unexecuted instantiation: <qoi::pixel::Pixel<_>>::a_or Unexecuted instantiation: <qoi::pixel::Pixel<3>>::a_or Unexecuted instantiation: <qoi::pixel::Pixel<4>>::a_or
118
119		#[inline]
120		#[allow(clippy::cast_lossless, clippy::cast_possible_truncation)]
121	0	pub fn hash_index(self) -> u8
122	0	where
123	0	[u8; N]: Pod,
124	0	{
125		// credits for the initial idea: @zakarumych
126	0	let v = if N == 4 {
127	0	u32::from_ne_bytes(cast(self.0))
128		} else {
129	0	u32::from_ne_bytes([self.0[0], self.0[1], self.0[2], 0xff])
130		} as u64;
131	0	let s = ((v & 0xff00_ff00) << 32) \| (v & 0x00ff_00ff);
132	0	s.wrapping_mul(0x0300_0700_0005_000b_u64).to_le().swap_bytes() as u8 & 63
133	0	} Unexecuted instantiation: <qoi::pixel::Pixel<3>>::hash_index Unexecuted instantiation: <qoi::pixel::Pixel<4>>::hash_index Unexecuted instantiation: <qoi::pixel::Pixel<_>>::hash_index Unexecuted instantiation: <qoi::pixel::Pixel<3>>::hash_index Unexecuted instantiation: <qoi::pixel::Pixel<4>>::hash_index Unexecuted instantiation: <qoi::pixel::Pixel<3>>::hash_index Unexecuted instantiation: <qoi::pixel::Pixel<4>>::hash_index Unexecuted instantiation: <qoi::pixel::Pixel<3>>::hash_index Unexecuted instantiation: <qoi::pixel::Pixel<4>>::hash_index Unexecuted instantiation: <qoi::pixel::Pixel<3>>::hash_index Unexecuted instantiation: <qoi::pixel::Pixel<4>>::hash_index Unexecuted instantiation: <qoi::pixel::Pixel<3>>::hash_index Unexecuted instantiation: <qoi::pixel::Pixel<4>>::hash_index Unexecuted instantiation: <qoi::pixel::Pixel<3>>::hash_index Unexecuted instantiation: <qoi::pixel::Pixel<4>>::hash_index Unexecuted instantiation: <qoi::pixel::Pixel<3>>::hash_index Unexecuted instantiation: <qoi::pixel::Pixel<4>>::hash_index Unexecuted instantiation: <qoi::pixel::Pixel<3>>::hash_index Unexecuted instantiation: <qoi::pixel::Pixel<4>>::hash_index Unexecuted instantiation: <qoi::pixel::Pixel<3>>::hash_index Unexecuted instantiation: <qoi::pixel::Pixel<4>>::hash_index Unexecuted instantiation: <qoi::pixel::Pixel<3>>::hash_index Unexecuted instantiation: <qoi::pixel::Pixel<4>>::hash_index
134
135		#[inline]
136	0	pub fn rgb_add(&mut self, r: u8, g: u8, b: u8) {
137	0	self.0[0] = self.0[0].wrapping_add(r);
138	0	self.0[1] = self.0[1].wrapping_add(g);
139	0	self.0[2] = self.0[2].wrapping_add(b);
140	0	}
141
142		#[inline]
143	0	pub fn encode_into<W: Writer>(&self, px_prev: Self, buf: W) -> Result<W> {
144	0	if N == 3 \|\| self.a_or(0) == px_prev.a_or(0) {
145	0	let vg = self.g().wrapping_sub(px_prev.g());
146	0	let vg_32 = vg.wrapping_add(32);
147	0	if vg_32 \| 63 == 63 {
148	0	let vr = self.r().wrapping_sub(px_prev.r());
149	0	let vb = self.b().wrapping_sub(px_prev.b());
150	0	let vg_r = vr.wrapping_sub(vg);
151	0	let vg_b = vb.wrapping_sub(vg);
152	0	let (vr_2, vg_2, vb_2) =
153	0	(vr.wrapping_add(2), vg.wrapping_add(2), vb.wrapping_add(2));
154	0	if vr_2 \| vg_2 \| vb_2 \| 3 == 3 {
155	0	buf.write_one(QOI_OP_DIFF \| vr_2 << 4 \| vg_2 << 2 \| vb_2)
156		} else {
157	0	let (vg_r_8, vg_b_8) = (vg_r.wrapping_add(8), vg_b.wrapping_add(8));
158	0	if vg_r_8 \| vg_b_8 \| 15 == 15 {
159	0	buf.write_many(&[QOI_OP_LUMA \| vg_32, vg_r_8 << 4 \| vg_b_8])
160		} else {
161	0	buf.write_many(&[QOI_OP_RGB, self.r(), self.g(), self.b()])
162		}
163		}
164		} else {
165	0	buf.write_many(&[QOI_OP_RGB, self.r(), self.g(), self.b()])
166		}
167		} else {
168	0	buf.write_many(&[QOI_OP_RGBA, self.r(), self.g(), self.b(), self.a_or(0xff)])
169		}
170	0	} Unexecuted instantiation: <qoi::pixel::Pixel<_>>::encode_into::<_> Unexecuted instantiation: <qoi::pixel::Pixel<3>>::encode_into::<qoi::utils::BytesMut> Unexecuted instantiation: <qoi::pixel::Pixel<4>>::encode_into::<qoi::utils::BytesMut>
171		}
172
173		impl<const N: usize> From<Pixel<N>> for [u8; N] {
174		#[inline(always)]
175	0	fn from(px: Pixel<N>) -> Self {
176	0	px.0
177	0	} Unexecuted instantiation: <[u8; 3] as core::convert::From<qoi::pixel::Pixel<3>>>::from Unexecuted instantiation: <[u8; 4] as core::convert::From<qoi::pixel::Pixel<4>>>::from Unexecuted instantiation: <[u8; _] as core::convert::From<qoi::pixel::Pixel<_>>>::from Unexecuted instantiation: <[u8; 3] as core::convert::From<qoi::pixel::Pixel<3>>>::from Unexecuted instantiation: <[u8; 4] as core::convert::From<qoi::pixel::Pixel<4>>>::from Unexecuted instantiation: <[u8; 3] as core::convert::From<qoi::pixel::Pixel<3>>>::from Unexecuted instantiation: <[u8; 4] as core::convert::From<qoi::pixel::Pixel<4>>>::from Unexecuted instantiation: <[u8; 3] as core::convert::From<qoi::pixel::Pixel<3>>>::from Unexecuted instantiation: <[u8; 4] as core::convert::From<qoi::pixel::Pixel<4>>>::from Unexecuted instantiation: <[u8; 3] as core::convert::From<qoi::pixel::Pixel<3>>>::from Unexecuted instantiation: <[u8; 4] as core::convert::From<qoi::pixel::Pixel<4>>>::from Unexecuted instantiation: <[u8; 3] as core::convert::From<qoi::pixel::Pixel<3>>>::from Unexecuted instantiation: <[u8; 4] as core::convert::From<qoi::pixel::Pixel<4>>>::from Unexecuted instantiation: <[u8; 3] as core::convert::From<qoi::pixel::Pixel<3>>>::from Unexecuted instantiation: <[u8; 4] as core::convert::From<qoi::pixel::Pixel<4>>>::from Unexecuted instantiation: <[u8; 3] as core::convert::From<qoi::pixel::Pixel<3>>>::from Unexecuted instantiation: <[u8; 4] as core::convert::From<qoi::pixel::Pixel<4>>>::from Unexecuted instantiation: <[u8; 3] as core::convert::From<qoi::pixel::Pixel<3>>>::from Unexecuted instantiation: <[u8; 4] as core::convert::From<qoi::pixel::Pixel<4>>>::from Unexecuted instantiation: <[u8; 3] as core::convert::From<qoi::pixel::Pixel<3>>>::from Unexecuted instantiation: <[u8; 4] as core::convert::From<qoi::pixel::Pixel<4>>>::from Unexecuted instantiation: <[u8; 3] as core::convert::From<qoi::pixel::Pixel<3>>>::from Unexecuted instantiation: <[u8; 4] as core::convert::From<qoi::pixel::Pixel<4>>>::from
178		}
179
180		pub trait SupportedChannels {}
181
182		impl SupportedChannels for Pixel<3> {}
183		impl SupportedChannels for Pixel<4> {}

Coverage Report

Created: 2025-07-01 06:50