Date: Mon, 12 Jul 93 13:16:25 GMT
From: Joe Clark <joe AT ziggy DOT larc DOT nasa DOT gov>
To: djgpp AT sun DOT soe DOT clarkson DOT edu
Subject: Animation in libgrx

Does anyone know of a way to do page swapping for flicker free
animation effects with libgrx?  Basically I would like to be able
to draw to a context without it being seen and I can't seem to figure
out if this is supported by reading the documentation.  Preferably the
solution will not involve GrBitBlt as this would slow things down
quite a bit.

For example, I believe it should work like this:

	/*  Always show front buffer  */

	set_frontbuffer(TRUE);
	set_backbuffer(FALSE);


	loop {
		clear backbuffer();
		draw_to_backbuffer();
		swap_front_and_back();
	}				



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* Joe Clark                     |  Internet : joe AT ziggy DOT larc DOT nasa DOT gov *
* NASA Langley Research Center  |                                     *
* MS 152E                       |  Phone : 804-864-6655               *
* Hampton, VA 23665             |  FAX  : 804-864-7793                *
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