Use the source resource's length, not destination's, when box is NULL
Use the source resource's length, not destination's, when box is NULL

* Thanks to @bkaradzic for finding this one!

Lssikkes/renderdoc,Yours3lf/renderdoc,moradin/renderdoc,Anteru/renderdoc,TurtleRockStudios/renderdoc_public,adrianbu/renderdoc,baldurk/renderdoc,googlestadia/renderdoc,michaelrgb/renderdoc,victor-moya/renderdoc,moradin/renderdoc,Zorro666/renderdoc,victor-moya/renderdoc,Velro/renderdoc,victor-moya/renderdoc,etnlGD/renderdoc,etnlGD/renderdoc,Velro/renderdoc,baldurk/renderdoc,victor-moya/renderdoc,Yours3lf/renderdoc,etnlGD/renderdoc,TurtleRockStudios/renderdoc_public,michaelrgb/renderdoc,googlestadia/renderdoc,cgmb/renderdoc,cgmb/renderdoc,Lssikkes/renderdoc,moradin/renderdoc,TurtleRockStudios/renderdoc_public,TurtleRockStudios/renderdoc_public,Velro/renderdoc,baldurk/renderdoc,cgmb/renderdoc,michaelrgb/renderdoc,adrianbu/renderdoc,adrianbu/renderdoc,googlestadia/renderdoc,Anteru/renderdoc,TurtleRockStudios/renderdoc_public,Zorro666/renderdoc,Anteru/renderdoc,Lssikkes/renderdoc,cgmb/renderdoc,victor-moya/renderdoc,googlestadia/renderdoc,Zorro666/renderdoc,Anteru/renderdoc,cgmb/renderdoc,Zorro666/renderdoc,Yours3lf/renderdoc,moradin/renderdoc,baldurk/renderdoc,Anteru/renderdoc,victor-moya/renderdoc,Yours3lf/renderdoc,baldurk/renderdoc,googlestadia/renderdoc,etnlGD/renderdoc,adrianbu/renderdoc,moradin/renderdoc,Lssikkes/renderdoc,michaelrgb/renderdoc,adrianbu/renderdoc,Yours3lf/renderdoc,Velro/renderdoc,Yours3lf/renderdoc,adrianbu/renderdoc,Anteru/renderdoc,Velro/renderdoc,etnlGD/renderdoc,Velro/renderdoc,michaelrgb/renderdoc,Zorro666/renderdoc,Lssikkes/renderdoc,baldurk/renderdoc,Anteru/renderdoc,etnlGD/renderdoc,TurtleRockStudios/renderdoc_public,Zorro666/renderdoc,googlestadia/renderdoc,moradin/renderdoc,Lssikkes/renderdoc