lyon vomits a lot on various tessellations. Previously this would
bail out immediately for the entire shape, resulting in missing art.
Now we just skip that particular path, and the rest of the shape
should get tessellated as normal.
Player is now in charge of scaling/cropping/translating the content
to fit the viewport size supplied by the frontend.
Added backend::render::Letterbox, which stores the margin sizes
for letter/pillarboxing.
DefineBitsJPEG tags can have some extraneous bytes inside the
stream. Splice these out when decoding the JPEG.
TODO: Docs say this should only happen for SWF versions before 8?
Lyon seems sensitive to overflow on large coordinates, so passing
twips resulting in overflow panics on very large shapes.
Avoid panics on tessellation failure: instead, return an empty
mesh and log an error.
Switch from pixels to twips for internal calculations. swf crate
was updated to add a Twips wrapper-type. Ruffle will use this type
internally for transforms and shapes. This fixes some precision
errors in rendering (see heroes_of_cybertron.swf) and will match
what the Flash Player does internally more closely. (e.g.
DisplayObject x and y will be quantized to 1/20 pixel units). It
is up to the renderer to convert units from twip space to pixels
when rendering.