Alan Cox wrote:
Out of date. On a modern AGP card you want the card to do the fetches,
clips and overlaying. You certainly don't want to write to video ram
Is this really possible with current Xfree86 without resorting to some
DRI stuff?
The agpgart layer handles this, so yes - XFree86 can directly transfer
image data through the AGP Gart window. Its not done as effectively as
it could be. The current case is
Xapp->sharedmemory->X->gart->Video Card
but unless things have changed XFree86 agpgart doesn't support remapping the
shared memory pages directly into the GART and referencing them.
So it doesn't work with the XVideo extension?
Do you know any example that works with by making yuv data available to
the gfx card? A deinterlacing app would probably benefit from using such
a transport.
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-Torgeir
