Hi Mathias,
On Thu, 20 Sep 2018 at 15:12, Mathias Fröhlich
<[email protected]> wrote:
> > @@ -141,6 +231,12 @@ _eglQueryDeviceStringEXT(_EGLDevice *dev, EGLint name)
> > switch (name) {
> > case EGL_EXTENSIONS:
> > return dev->extensions;
> > +#ifdef HAVE_LIBDRM
> > + case EGL_DRM_DEVICE_FILE_EXT:
> > + if (_eglDeviceSupports(dev, _EGL_DEVICE_DRM))
> > + return dev->device->nodes[DRM_NODE_PRIMARY];
> ... we probably want
> return _eglGetDRMDeviceRenderNode(dev);
>
That isn't quite possible, as discussed in 2016's thread
"EGL_EXT_*_drm - primary vs render node".
The extensions is (was?) not too clear that a card node must be
returned, yet there are applications depend on it.
As mentioned in said thread we could add another extension which adds
support for EGL_DRM_RENDER_DEVICE_FILE_EXT.
But I'd suggest keeping that as a follow-up - hence the comment above
_eglGetDRMDeviceRenderNode()
-Emil
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