| commit | 61e77a5f0c788495566aecb437bcf6b2cf9cda97 | |
| author | Gerd Hoffmann <kraxel@redhat.com> | |
| Wed, 16 Jan 2019 10:10:49 +0000 (16 11:10 +0100) | ||
| committer | Gerd Hoffmann <kraxel@redhat.com> | |
| Mon, 21 Jan 2019 08:43:13 +0000 (21 09:43 +0100) | ||
| tree | 67f2e47834d0502c954d53b0748835c2ef58e4f7 | treesnapshot (tar.gz zip) |
| parent | a442fe2f2b2f20e7be0934277e9400b844b11999 | commitdiff |
vnc: detect and optimize pageflips
When size and format of the display surface stays the same we can just
tag the guest display as dirty and be done with it.
There is no need need to resize the vnc server display or to touch the
vnc client dirty bits. On the next refresh cycle
vnc_refresh_server_surface() will check for actual display content
changes and update the client dirty bits as needed.
The desktop resize and framebuffer format notifications to the vnc
client will be skipped too.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20190116101049.8929-1-kraxel@redhat.com
When size and format of the display surface stays the same we can just
tag the guest display as dirty and be done with it.
There is no need need to resize the vnc server display or to touch the
vnc client dirty bits. On the next refresh cycle
vnc_refresh_server_surface() will check for actual display content
changes and update the client dirty bits as needed.
The desktop resize and framebuffer format notifications to the vnc
client will be skipped too.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20190116101049.8929-1-kraxel@redhat.com
| ui/vnc.c | diffblobblamehistory |