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2010-01-07vnc: Fix artifacts in hextile decodingAnthony Liguori
02c2b87 introduced a regression whereas the foreground color in a hextile update was not being properly invalidated leading to artifacts. It's still necessary to explicitly invalidate the foreground color with a SubrectColoured tile even though we no longer send a foreground color as part of the tile. Reported-by: Mark Cave-Ayland <mark.cave-ayland@siriusit.co.uk> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-12-18vnc: hextile: do not generate ForegroundSpecified and SubrectsColoured tilesAnthony Liguori
This violates the RFB specification (section 6.6.4). It happens to work with most clients but it's still wrong. Reported-by: Yaniv Kaul <ykaul@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-10single vnc server surfaceStefano Stabellini
This patch removes the server surface from VncState and adds a single server surface to VncDisplay for all the possible clients connected. Each client maintains a different dirty bitmap in VncState. The guest surface is moved to VncDisplay as well because we don't need to track guest updates in more than one place. This patch has been updated to handle CopyRect correctly and efficiently. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Message-Id:
2009-03-20vnc: cleanup surface handling, fix screen corruption bug. (Gerd Hoffmann)aliguori
This patch killes the old_data hack in the qemu server and replaces it with a clean separation of the guest-visible display surface and the vnc server display surface. Both guest and server surface have their own dirty bitmap for tracking screen updates. Workflow is this: (1) The guest writes to the guest surface. With shared buffers being active the guest writes are directly visible to the vnc server code. Note that this may happen in parallel to the vnc server code running (today only in xenfb, once we have vcpu threads in qemu also for other display adapters). (2) vnc_update() callback tags the specified area in the guest dirty map. (3) vnc_update_client() will first walk through the guest dirty map. It will compare guest and server surface for all regions tagged dirty and in case the screen content really did change the server surface and dirty map are updated. Note: old code used old_data in a simliar way, so this does *not* introduce an extra memcpy. (4) Then vnc_update_cient() will send the updates to the vnc client using the server surface and dirty map. Note: old code used the guest-visible surface instead, causing screen corruption in case of guest screen updates running in parallel. The separate dirty bitmap also has the nice effect that forced screen updates can be done cleanly by simply tagging the area in both guest and server dirty map. The old, hackish way was memset(old_data, 42, size) to trick the code checking for screen changes. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6860 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-15exploiting the new interface in vnc.c (Stefano Stabellini)aliguori
This patch exploits the new DisplaySurface and PixelFormat structures in vnc, making the code easier to read allowing further improvements. Compared to the last version I fixed a bug that prevented the hextile encoding from working properly. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6337 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-24Introduce accessors for DisplayState (Stefano Stabellini)aliguori
Introducing some accessors: ds_get_linesize ds_get_bits_per_pixel ds_get_width ds_get_height ds_get_data Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5789 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-15vnc dynamic resolution (Stefano Stabellini)aliguori
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5229 c046a42c-6fe2-441c-8c8c-71466251a162
2007-12-16Fix wrong signedness, by Andre Przywara.ths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3815 c046a42c-6fe2-441c-8c8c-71466251a162
2007-09-16find -type f | xargs sed -i 's/[\t ]$//g' # on most filesths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3173 c046a42c-6fe2-441c-8c8c-71466251a162
2006-12-21Silence a spurious gcc warning.ths
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2253 c046a42c-6fe2-441c-8c8c-71466251a162
2006-05-14support for all VNC pixel formatsbellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1923 c046a42c-6fe2-441c-8c8c-71466251a162
2006-04-30VNC server (Anthony Liguori)bellard
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1869 c046a42c-6fe2-441c-8c8c-71466251a162