Ubuntu
qtdeclarative-opensource-src package

Backport QQuickAsyncImageProvider from upstream-dev

Bug #1439250 reported by Albert Astals Cid on 2015-04-01

This bug report is a duplicate of: Bug #1439263: Backport QQuickAsyncImageProvider from upstream-dev. Edit Remove

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	qtdeclarative-opensource-src (Ubuntu)	New	Undecided	Unassigned

Bug Description

In Qt <= 5.5 all images coming from custom image providers (i.e. not directly loaded from either the web or a local file) share the same thread, this means that if one is very slow will stall the rest without any way to fix it.

Qt 5.6 introduces QQuickAsyncImageProvider that allows for providers to run their own threads and thus not block the main one that does the dispatching.

If we backport QQuickAsyncImageProvider to our current Qt release we can easily fix https://bugs.launchpad.net/thumbnailer/+bug/1425043 by implementing an async provider for the thumbnailer ( proof of concept at https://code.launchpad.net/~aacid/thumbnailer/asyncprovider )