>> Allen Akin <[EMAIL PROTECTED]> writes: > Most consumer-level hardware doesn't support the esoteric functions > in the pixel path, but there's no hardware reason for the most common > case (data format matches the window pixel format; no scale/bias, > convolutions, scaling, etc.) to be slow.
That's my point. Using the DRI drivers in 4.0.1 (I'm sorry, those are the numbers I have handy at the moment) with a G400 I can see something like 1-2 Mp/s (2-4 MB/s, ~ 1-2 fullscreen/s) in the common/best case for glReadPixels without any kind of pixel transformation. The Radeon pulls 10x as much, IIRC. So, is that a hardware problem (somehow I don't think so, the card doesn't seem to have a problem handling fullscreen video at 20 fps or whereabouts) or is it a driver problem? > It's trickier than you might think to get the data formats to match > the window exactly Yes, that I understand. -- Marcelo _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
