miniz_oxide/inflate/
output_buffer.rs

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1/// A wrapper for the output slice used when decompressing.
2///
3/// Using this rather than `Cursor` lets us implement the writing methods directly on
4/// the buffer and lets us use a usize rather than u64 for the position which helps with
5/// performance on 32-bit systems.
6pub struct OutputBuffer<'a> {
7    slice: &'a mut [u8],
8    position: usize,
9}
10
11impl<'a> OutputBuffer<'a> {
12    #[inline]
13    pub fn from_slice_and_pos(slice: &'a mut [u8], position: usize) -> OutputBuffer<'a> {
14        OutputBuffer { slice, position }
15    }
16
17    #[inline]
18    pub fn position(&self) -> usize {
19        self.position
20    }
21
22    #[inline]
23    pub fn set_position(&mut self, position: usize) {
24        self.position = position;
25    }
26
27    /// Write a byte to the current position and increment
28    ///
29    /// Assumes that there is space.
30    #[inline]
31    pub fn write_byte(&mut self, byte: u8) {
32        self.slice[self.position] = byte;
33        self.position += 1;
34    }
35
36    /// Write a slice to the current position and increment
37    ///
38    /// Assumes that there is space.
39    #[inline]
40    pub fn write_slice(&mut self, data: &[u8]) {
41        let len = data.len();
42        self.slice[self.position..self.position + len].copy_from_slice(data);
43        self.position += data.len();
44    }
45
46    #[inline]
47    pub fn bytes_left(&self) -> usize {
48        self.slice.len() - self.position
49    }
50
51    #[inline]
52    pub fn get_ref(&self) -> &[u8] {
53        self.slice
54    }
55
56    #[inline]
57    pub fn get_mut(&mut self) -> &mut [u8] {
58        self.slice
59    }
60}
miniz_oxide/inflate/output_buffer.rs

miniz_oxide/inflate/
output_buffer.rs
