vcl: Allow SalBitmap implementation to do scaling

Change-Id: If4431fb276c9c2629acbc95aeff2ef7c4a683d86
vcl: Remove some more extra colons

Change-Id: Ic40607ae3cd96ebd9ad90bdbb4134cf80242c5cf
vcl: Fix creation of textures and wrong format

Change-Id: I9357b79b9f2e1e9506b83b40e35b882b4ee4cc37