Support multiple VNC clients (Brian Kress)

Change structure associated with a display from VncState to a new structure
VncDisplay. Remove client specific fields from VncDisplay. Remove display
specific fields from VncState. Maintain a linked list of VncStates per
VncDisplay structure, update as necessary. When updates/resizes/copies come in
from the hardware, dispatch to all clients. 
Signed-off-by: NBrian Kress <kressb@moose.net>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6621 c046a42c-6fe2-441c-8c8c-71466251a162

vnc.h

@@ -101,6 +101,7 @@ enum {
 #define VNC_FEATURE_WMVI                     3
 #define VNC_FEATURE_TIGHT                    4
 #define VNC_FEATURE_ZLIB                     5
+#define VNC_FEATURE_COPYRECT                 6
 
 #define VNC_FEATURE_RESIZE_MASK              (1 << VNC_FEATURE_RESIZE)
 #define VNC_FEATURE_HEXTILE_MASK             (1 << VNC_FEATURE_HEXTILE)
@@ -108,5 +109,6 @@ enum {
 #define VNC_FEATURE_WMVI_MASK                (1 << VNC_FEATURE_WMVI)
 #define VNC_FEATURE_TIGHT_MASK               (1 << VNC_FEATURE_TIGHT)
 #define VNC_FEATURE_ZLIB_MASK                (1 << VNC_FEATURE_ZLIB)
+#define VNC_FEATURE_COPYRECT_MASK            (1 << VNC_FEATURE_COPYRECT)
 
 #endif /* __VNCTIGHT_H */