Implemented the plumbing for paint worklets.

This commit is contained in:
Alan Jeffrey 2017-04-03 14:35:57 -05:00
parent 7e273d6c9b
commit fd17dcd604
23 changed files with 600 additions and 156 deletions

View file

@ -57,9 +57,18 @@ fn get_placeholder_image(webrender_api: &webrender_traits::RenderApi, path: &Pat
let mut image_data = vec![];
try!(file.read_to_end(&mut image_data));
let mut image = load_from_memory(&image_data).unwrap();
set_webrender_image_key(webrender_api, &mut image);
Ok(Arc::new(image))
}
fn set_webrender_image_key(webrender_api: &webrender_traits::RenderApi, image: &mut Image) {
if image.id.is_some() { return; }
let format = convert_format(image.format);
let mut bytes = Vec::new();
bytes.extend_from_slice(&*image.bytes);
if format == webrender_traits::ImageFormat::RGBA8 {
premultiply(bytes.as_mut_slice());
}
let descriptor = webrender_traits::ImageDescriptor {
width: image.width,
height: image.height,
@ -72,7 +81,6 @@ fn get_placeholder_image(webrender_api: &webrender_traits::RenderApi, path: &Pat
let image_key = webrender_api.generate_image_key();
webrender_api.add_image(image_key, descriptor, data, None);
image.id = Some(image_key);
Ok(Arc::new(image))
}
// TODO(gw): This is a port of the old is_image_opaque code from WR.
@ -338,26 +346,7 @@ impl ImageCacheStore {
};
match load_result {
LoadResult::Loaded(ref mut image) => {
let format = convert_format(image.format);
let mut bytes = Vec::new();
bytes.extend_from_slice(&*image.bytes);
if format == webrender_traits::ImageFormat::RGBA8 {
premultiply(bytes.as_mut_slice());
}
let descriptor = webrender_traits::ImageDescriptor {
width: image.width,
height: image.height,
stride: None,
format: format,
offset: 0,
is_opaque: is_image_opaque(format, &bytes),
};
let data = webrender_traits::ImageData::new(bytes);
let image_key = self.webrender_api.generate_image_key();
self.webrender_api.add_image(image_key, descriptor, data, None);
image.id = Some(image_key);
}
LoadResult::Loaded(ref mut image) => set_webrender_image_key(&self.webrender_api, image),
LoadResult::PlaceholderLoaded(..) | LoadResult::None => {}
}
@ -576,4 +565,9 @@ impl ImageCache for ImageCacheImpl {
}
}
}
/// Ensure an image has a webrender key.
fn set_webrender_image_key(&self, image: &mut Image) {
set_webrender_image_key(&self.store.lock().unwrap().webrender_api, image);
}
}