ui/gtk: skip any extra draw of same guest scanout blob res

Any extra draw call for the same blob resource representing guest scanout
before the previous drawing is not finished can break synchronous draw
sequence. To prevent this, drawing is now done only once for each draw
submission (when draw_submitted == true).

v2:
 - removed mutex
 - updated commit msg

Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Vivek Kasireddy <vivek.kasireddy@intel.com>
Signed-off-by: Dongwon Kim <dongwon.kim@intel.com>
Message-Id: <20210924225105.24930-1-dongwon.kim@intel.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/ui/console.h b/include/ui/console.h
index 244664d727..b6bedc5f41 100644
--- a/include/ui/console.h
+++ b/include/ui/console.h
@@ -171,6 +171,7 @@ typedef struct QemuDmaBuf {
     void      *sync;
     int       fence_fd;
     bool      allow_fences;
+    bool      draw_submitted;
 } QemuDmaBuf;
 
 typedef struct DisplayState DisplayState;