diff options
| -rw-r--r-- | xc/programs/Xserver/vnc/vncHooks.cc | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/xc/programs/Xserver/vnc/vncHooks.cc b/xc/programs/Xserver/vnc/vncHooks.cc index 1321bf32..c0880d9e 100644 --- a/xc/programs/Xserver/vnc/vncHooks.cc +++ b/xc/programs/Xserver/vnc/vncHooks.cc @@ -505,6 +505,14 @@ void vncHooksComposite(CARD8 op, PicturePtr pSrc, PicturePtr pMask, BoxRec box; PictureScreenPtr ps = GetPictureScreen(pScreen); + // For some reason, this hook is sometimes called with a negative + // xDst. This causes graphics errors, as well as error messages of + // the type: + // ComparingUpdateTracker: rect outside fb (-47,76-171,89) + // I've never observed a negative yDst, but let's check it anyway. + if ((xDst < 0) || (yDst < 0)) + return; + box.x1 = pDst->pDrawable->x + xDst; box.y1 = pDst->pDrawable->y + yDst; box.x2 = box.x1 + width; |