diff options
| -rw-r--r-- | unix/x0vncserver/Image.cxx | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/unix/x0vncserver/Image.cxx b/unix/x0vncserver/Image.cxx index ca3d6429..f1a45933 100644 --- a/unix/x0vncserver/Image.cxx +++ b/unix/x0vncserver/Image.cxx @@ -315,8 +315,13 @@ void ShmImage::get(Window wnd, int x, int y) void ShmImage::get(Window wnd, int x, int y, int w, int h, int dst_x, int dst_y) { - // FIXME: Use SHM for this as well? - XGetSubImage(dpy, wnd, x, y, w, h, AllPlanes, ZPixmap, xim, dst_x, dst_y); + // XShmGetImage is faster, but can only retrieve the entire + // window. Use it for large reads. + if (x == dst_x && y == dst_y && (long)w * h > (long)xim->width * xim->height / 4) { + XShmGetImage(dpy, wnd, xim, 0, 0, AllPlanes); + } else { + XGetSubImage(dpy, wnd, x, y, w, h, AllPlanes, ZPixmap, xim, dst_x, dst_y); + } } // |