Note that host objects that do so will *not* have access to their standard representation from within member functions - you will need to extend the interface to accomodate for them. This is due to long-standing limitations with type IDs and downcasting with types that bear lifetimes - it's entirely an unsafe operation and exposing such a facility to safe Rust is unsound. However, this will at least let us separate out several things from ScriptObject that don't need to be there for the time being.
This pushes an extra `undefined` onto the stack to fix underflow in AS2 interface declarations.
It is currently unknown if this is a miscompilation or if some other value is supposed to be there.
# Conflicts:
# core/src/avm1.rs
# core/src/avm1/object.rs
Gotos now goto the specified frames immediately as opposed to
queuing. Actions on the new frame will still be queued,
and are executed after any current actions are completed.
Some SWFs are compressed incorrectly, often with incorrect
compressed/uncompressed lengths, causing the zlib decoders
to vomit if you try to decompress them fully. However, often times
the data still decompresses all the way to the End tag, and we
still want to try to play it even if it's corrupt.
Now these errors only omit a warning, and we'll continue to run
the SWF.
Addresses #86.
Embed an SWF version of Noto Sans (core/assets/*) into the player.
The player will load this font and use it to render device text.
This is a quicky implementation to get dynamic device text
rendering.
Functions that manipulate the stack now run inside of `with_current_reader_mut`, which calls a given function with a Reader for the current stack frame. If the stack frame still exists after that code runs, we update it's PC with the Reader's position.
This necessitates the use of a copy of SWF data into the GC arena, along with unsafe (and possibly unsound) pointer manipulation to get the action reader to hold a GC pointer.
Implement the SetTarget2 action, which pops the target off of the
stack, and GetProperty 11, which pushes _target.
However, our implementation of _target is not accurate yet,
because it requires dynamically building the target path. Currently
we fake it by caching the last path to tellTarget.
The AVM1 contains an explicit "target clip" that is used for older
Flash 4-era actions. This target clip can be set to an invalid
value, at which point Play, Stop, etc. will fail silently.
For GetVariable and SetVariable, if the target is invalid,
the variables will be modified on root ("/").
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.
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.
David Wendt