On sön, 2014-10-12 at 18:47 -0400, Owen Taylor wrote: > * It looks like there's a need to create a GdkGLContext for a window > *before* the paint callback it is first used, since we use the existence > of the internal paint GL context to know whether we are using GL for > this paint; this is not documented.
I think if you don't do this then the first frame will fall back to the software fallback, but next frame will work. I didn't test this though. > * Does the paint GL context need to be always derived from the toplevel > or nearest native ancestor of a GdkWindow? It looks to me like things > might not work right if gdk_window_create_gl_context() is called on a > client side subwindow. I've tried to make it work for all client windows, i.e. it should get the paint context for the nearest native window (the impl window). Its possible i missed this somewhere, if so we should fix that. > * The approach of continually creating the render buffer may not give > good enough performance, but if we do that, it's definitely desirable to > create a minimal sized render buffer instead of one that's the size of > the widget, since the cost of allocating a buffer gets larger the more > pages that have to be allocated. We should probably keep the buffer allocated at least until the widget has not redrawn in a while. > * What's the intended event handling for GtkGLArea? It seems like you'd > have to put it into a GtkEventBox and handle events on the GtkEventBox - > maybe GtkGLArea should have an event window? > Yeah, we should probably add one as most gl areas will want some input (and its pretty lightweight if not). Will take a look at the other input later. _______________________________________________ gtk-devel-list mailing list gtk-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-devel-list
