Added SharedContext class that allows you to create a shared context …

[holoeye-photonics]

…for another thread.

Some extra notes:

• Keep in mind that core::beginRendering() always sets the context in the core current. So you should consider not using a shared context for the render thread but the actual core context instead. You can use core::makeContextCurrent() for this.
• There is a class Mem2Native that can handle uploading texture asynchronously.
• The following post suggests that using shared contexts is not desirable due to the graphics driver mutexing any commands anyway on shared contexts. https://forums.libsdl.org/viewtopic.php?p=41512#41512

[frankinshtein]

btw,

1. Mem2Native - deprecated
2. for async textures loading there is https://github.com/oxygine/oxygine-framework/blob/master/oxygine/src/res/CreateResourceContext.h

[holoeye-photonics]

Hi Denis,

thanks for the info. However we do not use the engine for games and need a very strict texture loading pipeline so CreateResourceContext is not predictable enough for us timing wise. But I also think that having shared contexts is not an ideal approach here so we will probably also end up not using them.
But the code is there and working so I felt I could just publish it anyway, maybe it is good use to someone.

Thanks for your time,
Dan