It works if I add a dummy OffscreenSurface and make my context current on
this before making the PBuffer current. Not sure if this is the best way of
doing it though?
- Thomas
On Tue, Sep 29, 2015 at 11:37 AM, Thomas Sevaldrud <tho...@silentwings.no>
wrote:
> Hi,
>
> I'm still working on the EGL PBuffer/DirectX integration through Qt that I
> posted about last week :-)
>
> Thanks to good help from this list I now have the PBuffer and DirectX
> texture set up with the share handle. I also have a QOpenGLContext which I
> have used to set up the EGL PBuffer. I don't have a QSurface though, since
> my surface is the EGL PBuffer.
>
> So, the question now is how do I make the QOpenGLContext current. (I need
> a QOpenGLContext::currentContext() for QOpenGLFunctions and so on).
>
> The code looks something like this:
>
> glContext_ = new QOpenGLContext;
>
> glContext_->setFormat(format);
>
> glContext_->create();
>
>
>
> ....
>
>
> QPlatformNativeInterface *nativeInterface =
> QGuiApplication::platformNativeInterface();
>
> egl_display_ =
> static_cast<EGLDisplay>(nativeInterface->nativeResourceForContext("eglDisplay",
> glContext_));
>
> egl_context_ =
> static_cast<EGLContext>(nativeInterface->nativeResourceForContext("eglContext",
> glContext_));
>
> EGLConfig egl_config =
> static_cast<EGLConfig>(nativeInterface->nativeResourceForContext("eglConfig",
> glContext_));
>
>
> EGLint attribs[] = { ...
>
>
> };
>
> egl_pbuffer_ = eglCreatePbufferSurface(egl_display_, egl_config, attribs);
>
>
>
> ... D3D setup stuff...
>
>
> // Start rendering to PBuffer:
>
>
> eglMakeCurrent(egl_display_, egl_pbuffer_, egl_pbuffer_, egl_context_);
>
>
> ... Here I should like to set glContext current somehow...
>
>
> Any ideas?
>
>
> - Thomas
>
>
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