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rename DecodePng INFLATED_BUFFER_LENGTH

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nworbnhoj 2022-07-28 06:15:58 +10:00
parent 7626be7043
commit f95a49dfdc
1 changed files with 5 additions and 5 deletions
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10
services/gam/src/bitmap/decode_png.rs
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@ -42,10 +42,10 @@ mod color_type;
use color_type::*;
// These may be adjusted to tune the heap requirement.
// Probably better for PNG_BUFFER = 2-3x IDAT_BUFFER
// Probably better for INFLATED_BUFFER = 2-3x IDAT_BUFFER
// TODO benchmarking speed vs heap
const IDAT_BUFFER_LENGTH: usize = 256;
const PNG_BUFFER_LENGTH: usize = 1024;
const INFLATED_BUFFER_LENGTH: usize = 1024;
pub struct DecodePng<R: Read> {
reader: R,
@ -75,7 +75,7 @@ pub struct DecodePng<R: Read> {
// state of the miniz oxide inflation
inflate_state: InflateState,
// fields to buffer inflated bytes waiting to be unfiltered
inflated: [u8; PNG_BUFFER_LENGTH],
inflated: [u8; INFLATED_BUFFER_LENGTH],
inflated_length: usize,
inflated_index: usize,
}
@ -112,9 +112,9 @@ impl<R: Read> DecodePng<R> {
idat_buffer: Vec::with_capacity(IDAT_BUFFER_LENGTH),
inflate_state: InflateState::new(DataFormat::Zlib),
//inflate_state: InflateState::new_boxed(DataFormat::Zlib),
inflated: [0u8; PNG_BUFFER_LENGTH],
inflated: [0u8; INFLATED_BUFFER_LENGTH],
inflated_length: 0,
inflated_index: PNG_BUFFER_LENGTH,
inflated_index: INFLATED_BUFFER_LENGTH,
};
png.check_signature()?;
png.parse_header()?;