Qt5 texture upload in separate thread

[tseval]

I don't want to render anything, I just need a shared context to upload my textures into

But, assuming that your answer was a rhetorical question it means that I can simply do something like this and it would work?

tex_upload_ctx_ = new QOpenGLContext();
 
QSurfaceFormat fmt;
tex_upload_ctx_->setFormat(fmt);
tex_upload_ctx_->setShareContext(main_ctx);
tex_upload_ctx_->create();
 
tex_upload_win_ = new QWindow();
tex_upload_ctx_->makeCurrent(tex_upload_win_);

tex_upload_ctx_ = new QOpenGLContext();

QSurfaceFormat fmt;
tex_upload_ctx_->setFormat(fmt);
tex_upload_ctx_->setShareContext(main_ctx);
tex_upload_ctx_->create();

tex_upload_win_ = new QWindow();
tex_upload_ctx_->makeCurrent(tex_upload_win_);

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