Avoid stale renderpass references in ShaderManager's pipeline list

A similar problem popped up for Quick3D before, and it seems the same
applies to Qt Quick layers as well: these can get released before the
(per-rendercontext) resource caches, thus leaving invalid references in
the cache keys.

Solve this by simply notifying the renderer to clean up the relevant
cache entries. Also utilize a very handy QRhi convenience, which allows
us to schedule and defer the destruction of a QRhiResource to endFrame()
(i.e. until after the current frame is submitted) with a single function
call.

Change-Id: I6db4914555f9504a2599e6ce1b0dc03b2b4b74de
Reviewed-by: Christian Strømme <christian.stromme@qt.io>

0 files changed, 0 insertions, 0 deletions