Adam Jackson 486fd4145a exaGetPixmapFirstPixel: avoid framebuffer readbacks if possible. ...

If the pixel in framebuffer memory isn't modified since we uploaded it, we
can just read from the system memory copy, wihch avoids both a readback and
an accelerator stall.

In principle this function is still wrong, and all the framebuffer pixel
access should be going through (w)fb so we can get pixel layout corrections.

2007-07-27 13:10:39 -04:00

13 KiB

Raw Blame History

View Raw