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image: Keep texture around until new is available

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Keep previous texture around during image reloads to avoid flickering.
This commit is contained in:
Sophie Herold 2024-08-16 13:29:27 +02:00
parent 0f69aa39c5
commit be32072d7a
6 changed files with 38 additions and 20 deletions
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8
src/widgets/image/loading.rs
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@ -89,6 +89,7 @@ impl imp::LpImage {
}
DecoderUpdate::Redraw => {
self.set_loaded(true);
self.previous_frame_buffer.reset();
obj.queue_draw();
self.frame_buffer.rcu(|tiles| {
@ -313,8 +314,13 @@ impl LpImage {
self.imp().set_file_loaded(file).await;
let tiles = &self.imp().frame_buffer;
// Delete all stored textures for reloads
tiles.reset();
let previous_frame_buffer = tiles.reset();
// Store previos frames to show until new texture is loaded
self.imp()
.previous_frame_buffer
.swap(previous_frame_buffer.load_full());
// Reset background color for reloads
imp.set_background_color(None);