Emmanuele Bassi ddf3395c6e gdk: Add GL drawing to GdkDrawingContext ...

Similar to gdk_cairo_draw_from_gl(), but using a GdkDrawingContext.

The newly added function does not have a fallback path that reads back
from the GL object and uploads to an intermediate Cairo surface because
the GdkDrawingContext is associated to a top level window, instead of a
being a Cairo context in the middle of a group.

2016-06-22 18:41:57 +01:00

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