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Merge some byte swap/premultiply functions in their own crate

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This commit is contained in:
Anthony Ramine 2018-10-06 00:40:48 +02:00
parent a2e3dd4e86
commit 784fbb2bc1
18 changed files with 85 additions and 96 deletions
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21
components/net_traits/image/base.rs
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@ -4,6 +4,7 @@
use ipc_channel::ipc::IpcSharedMemory;
use piston_image::{self, DynamicImage, ImageFormat};
use pixels;
use std::fmt;
use webrender_api;
@ -46,24 +47,6 @@ pub struct ImageMetadata {
// FIXME: Images must not be copied every frame. Instead we should atomically
// reference count them.
// TODO(pcwalton): Speed up with SIMD, or better yet, find some way to not do this.
fn byte_swap_colors_inplace(data: &mut [u8]) {
let length = data.len();
let mut i = 0;
while i < length {
let r = data[i + 2];
let g = data[i + 1];
let b = data[i + 0];
data[i + 0] = r;
data[i + 1] = g;
data[i + 2] = b;
i += 4;
}
}
pub fn load_from_memory(buffer: &[u8]) -> Option<Image> {
if buffer.is_empty() {
return None;
@ -82,7 +65,7 @@ pub fn load_from_memory(buffer: &[u8]) -> Option<Image> {
DynamicImage::ImageRgba8(rgba) => rgba,
image => image.to_rgba(),
};
byte_swap_colors_inplace(&mut *rgba);
pixels::byte_swap_colors_inplace(&mut *rgba);
Some(Image {
width: rgba.width(),
height: rgba.height(),