Remove usage of unstable feature iterator_step_by

This commit is contained in:
Simon Sapin 2017-10-11 20:17:16 +02:00
parent a38df68e8a
commit cbcc7d0802
4 changed files with 8 additions and 4 deletions

View file

@ -109,7 +109,8 @@ fn is_image_opaque(format: webrender_api::ImageFormat, bytes: &[u8]) -> bool {
fn premultiply(data: &mut [u8]) {
let length = data.len();
for i in Iterator::step_by(0..length, 4) {
let mut i = 0;
while i < length {
let b = data[i + 0] as u32;
let g = data[i + 1] as u32;
let r = data[i + 2] as u32;
@ -118,6 +119,8 @@ fn premultiply(data: &mut [u8]) {
data[i + 0] = (b * a / 255) as u8;
data[i + 1] = (g * a / 255) as u8;
data[i + 2] = (r * a / 255) as u8;
i += 4;
}
}