On Thursday 08 February 2001 8:02 am, Gerd Knorr wrote: > It can be both overlay (with the bt848 writing yuv to offscreen > memory, the gfx card setting up an overlay and filling the window > with the chromakey color) and direct transfer of rgb data to the > visible area of the framebuffer. It's pot luck though that determines that, not the Xv API. The api doesn't say "RGB isn't a hardware overlay" and, on a card like the Voodoo3 for example, it can do RGB into hardware overlay. Picking RGB instead of YUV is a pixel format decision not a decision as to where the pixels are sent...(even though most current drivers put RGB into the onscreen buffer you can't rely on that) -- Michael.
