| commit | d85d0d3883f5a567fa2969a0396e42e0a662b3fa | |
| author | aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162> | |
| Mon, 16 Feb 2009 14:59:35 +0000 (16 14:59 +0000) | ||
| committer | aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162> | |
| Mon, 16 Feb 2009 14:59:35 +0000 (16 14:59 +0000) | ||
| tree | 642fbb335405225c7c7c3fb2888eab04f72f17af | treesnapshot (tar.gz zip) |
| parent | 753b4053311ff1437d99726970b1e7e6bf38249b | commitdiff |
Fix hardware accelerated video to video copy on Cirrus VGA (Brian Kress)
cirrus_do_copy() in hw/cirrus_vga.c seems to make some incorrect assumptions
about video memory layout. It tries to convert addresses to coordinates
assuming that one row of data is (width * depth) bytes long. The correct way
seems to be to use the pitch fields in the CirrusVGAState structure instead.
Without this patch, I get lots of screen corruption when I try to drag a window
under X as it's passing the wrong coordinates to the display surface for the
copy. With this patch I can drag a window with no screen corruption.
Signed-off-by: Brian Kress <kressb@moose.net>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6622 c046a42c-6fe2-441c-8c8c-71466251a162
cirrus_do_copy() in hw/cirrus_vga.c seems to make some incorrect assumptions
about video memory layout. It tries to convert addresses to coordinates
assuming that one row of data is (width * depth) bytes long. The correct way
seems to be to use the pitch fields in the CirrusVGAState structure instead.
Without this patch, I get lots of screen corruption when I try to drag a window
under X as it's passing the wrong coordinates to the display surface for the
copy. With this patch I can drag a window with no screen corruption.
Signed-off-by: Brian Kress <kressb@moose.net>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6622 c046a42c-6fe2-441c-8c8c-71466251a162
| hw/cirrus_vga.c | diffblobblamehistory |