diff options
| -rw-r--r-- | ui/vnc.c | 26 |
1 files changed, 17 insertions, 9 deletions
@@ -3098,6 +3098,9 @@ static int vnc_refresh_server_surface(VncDisplay *vd) VncState *vs; int has_dirty = 0; pixman_image_t *tmpbuf = NULL; + unsigned long offset; + int x; + uint8_t *guest_ptr, *server_ptr; struct timeval tv = { 0, 0 }; @@ -3106,6 +3109,13 @@ static int vnc_refresh_server_surface(VncDisplay *vd) has_dirty = vnc_update_stats(vd, &tv); } + offset = find_next_bit((unsigned long *) &vd->guest.dirty, + height * VNC_DIRTY_BPL(&vd->guest), 0); + if (offset == height * VNC_DIRTY_BPL(&vd->guest)) { + /* no dirty bits in guest surface */ + return has_dirty; + } + /* * Walk through the guest dirty map. * Check and copy modified bits from guest to server surface. @@ -3130,15 +3140,6 @@ static int vnc_refresh_server_surface(VncDisplay *vd) line_bytes = MIN(server_stride, guest_ll); for (;;) { - int x; - uint8_t *guest_ptr, *server_ptr; - unsigned long offset = find_next_bit((unsigned long *) &vd->guest.dirty, - height * VNC_DIRTY_BPL(&vd->guest), - y * VNC_DIRTY_BPL(&vd->guest)); - if (offset == height * VNC_DIRTY_BPL(&vd->guest)) { - /* no more dirty bits */ - break; - } y = offset / VNC_DIRTY_BPL(&vd->guest); x = offset % VNC_DIRTY_BPL(&vd->guest); @@ -3177,6 +3178,13 @@ static int vnc_refresh_server_surface(VncDisplay *vd) } y++; + offset = find_next_bit((unsigned long *) &vd->guest.dirty, + height * VNC_DIRTY_BPL(&vd->guest), + y * VNC_DIRTY_BPL(&vd->guest)); + if (offset == height * VNC_DIRTY_BPL(&vd->guest)) { + /* no more dirty bits */ + break; + } } qemu_pixman_image_unref(tmpbuf); return has_dirty; |