c61d70ec46
Screen rotations force static wallpapers to get recreated. One of the things that happens is that the underlying bitmap resource is loaded. This can be quite expensive for large bitmaps (which is the case on large-display devices). A simple optimization is to retain the bitmap in the wallpaper process, to avoid this re-loading step. We still re-draw and re-upload the texture, but at least we don't re-load the thing. Issue #7324823 Manta wallpaper decode performance is atrocious Change-Id: I0748e275a55992d13704a7dec5910d2dbdc9e2a4