we have to use the bytesperpixel instead of assuming 4!

git-svn-id: https://xpra.org/svn/Xpra/trunk@15728 3bb7dfac-3a0b-4e04-842a-767bc560f471
Xpra-org · Apr 27, 2017 · cdb7471 · cdb7471
1 parent 9ce3d2d
commit cdb7471
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/xpra/codecs/image_wrapper.py b/src/xpra/codecs/image_wrapper.py
@@ -162,8 +162,8 @@ def get_sub_image(self, x, y, w, h):
         #copy to local variables:
         pixels = self.pixels
         oldstride = self.rowstride
-        pos = y*oldstride + x*4
-        newstride = w*4
+        pos = y*oldstride + x*self.bytesperpixel
+        newstride = w*self.bytesperpixel
         lines = []
         for _ in range(h):
             lines.append(memoryview_to_bytes(pixels[pos:pos+newstride]))