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| author | Gerd Hoffmann <kraxel@redhat.com> | 2017-03-17 08:21:36 +0100 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2017-03-17 10:23:44 +0100 |
| commit | f019722cbbb45aea153294fc8921fcc96a4d3fa2 (patch) | |
| tree | d7c182a5850b8951b91896b9d7b42ef49aa302bd | |
| parent | 8bb93c6f99a42c2e0943bc904b283cd622d302c5 (diff) | |
| download | qemu-f019722cbbb45aea153294fc8921fcc96a4d3fa2.zip qemu-f019722cbbb45aea153294fc8921fcc96a4d3fa2.tar.gz qemu-f019722cbbb45aea153294fc8921fcc96a4d3fa2.tar.bz2 | |
cirrus: fix off-by-one in cirrus_bitblt_rop_bkwd_transp_*_16
The switch from pointers to addresses (commit
026aeffcb4752054830ba203020ed6eb05bcaba8 and
ffaf857778286ca54e3804432a2369a279e73aa7) added
a off-by-one bug to 16bit backward blits. Fix.
Reported-by: 李强 <liqiang6-s@360.cn>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Li Qiang <liqiang6-s@360.cn>
Message-id: 1489735296-19047-1-git-send-email-kraxel@redhat.com
| -rw-r--r-- | hw/display/cirrus_vga_rop.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/display/cirrus_vga_rop.h b/hw/display/cirrus_vga_rop.h index c61a677..0841b9e 100644 --- a/hw/display/cirrus_vga_rop.h +++ b/hw/display/cirrus_vga_rop.h @@ -219,7 +219,7 @@ glue(glue(cirrus_bitblt_rop_bkwd_transp_, ROP_NAME),_16)(CirrusVGAState *s, srcpitch += bltwidth; for (y = 0; y < bltheight; y++) { for (x = 0; x < bltwidth; x+=2) { - ROP_OP_TR_16(s, dstaddr, cirrus_src16(s, srcaddr), transp); + ROP_OP_TR_16(s, dstaddr - 1, cirrus_src16(s, srcaddr - 1), transp); dstaddr -= 2; srcaddr -= 2; } |