Maarten Maathuis 1b5758bef0 exa: implement UTS based upload through CopyArea ...

- Some image viewers (eog, gqview) trigger the CopyArea path of Xext/shm.c
- I'm not aware of any code path that wouldn't like UTS and trigger this code.
- miDoCopy should handle src coordinate clipping.
- Overlapping blits are obviously not an issue (both would have to be offscreen or not).

2009-04-10 21:14:47 +02:00

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