Change some of the UI parameters (# of indeterminate progress bar
frames, fps, etc.) from #defined constants to variables that can be
set by the device-specific recovery_ui code (via a new function).
Support overlaying different images on top of the base installation
icon to animate it. Make the FPS control more accurate.
Change-Id: I9268b389b7ea6b3ed9e0c7eae37baf4272e60edd
Instead of six separate images for the left end, right end, and tiled
center portion of the full and empty progress bars, just use two
images: a full bar and an empty bar. Draw the left side of the full
bar and the right side of the empty one, moving the boundary rightward
to "fill" the bar. This makes recovery trivially smaller, and allows
fancier images to be used as progress bars.
Support paletted PNG images as resources.
