DirectXTK12 | DirectX Tool Kit ( aka DirectXTK12 | Game Engine library

I am trying to shutdown my DX12 renderer, and restart it within the same process.

Said application is heavily based on the microsoft MiniEngine example code, now with some modification to allow re-initialisation of global variables. I am using SDL for window and event management.

The last stumbling block for a clean shutdown and re-initialisation, it appears, is the loading of textures in a texture manager class, which in turn uses the DirectXTK12 code to load textures, via CreateWICTextureFromFileEx for .png files.

To summarise what I'm trying to do:

• start up application

• initialise rendering into SDL window

• render in rendering loop

• shut down all rendering and window handling (remove all resources, release device handle) - calls SDL_Quit

• re-initialise rendering into new SDL window (get new device handle, etc)

• render in rendering loop

The texture management class is shut down as part of the rendering shutdown, removing all traces of textures and their handles to resources etc.

As part of the rendering re-initialisation, the default textures are created via CreateWICTextureFromFileEx. (see here) and crash when trying to do this.

EDIT: since first posting, I can say that this crashing starts directly after calling SDL_Quit() (and persists after the call to restart with SDL_Init(SDL_INIT_VIDEO))

I am now fairly confident it's an issue with this area specifically rather than some other part of the renderer that isn't being re-initialised correctly, since I can force it to use .DDS textures instead of .pngs, and the system fires up again nicely. In this case it uses DDSTextureLoader without any (obvious) problems.

I've added the source to my project and can see the crash is occurring when trying to do this: