The SWF19 specs incorrectly state DefineEditText tag only contains
font height if the HasFont flag is set. The tag also contains
the height if the HasFontClass flag is set. This indicates that a
font is used via runtime sharing.
Extract `swf::Reader::read_do_abc()` which, as the name suggests,
reads a `DoAbc` tag, and use it before calling to `Avm2::load_abc`.
Finally, introduce `DoAbcFlag` using `bitflags`.
This greatly simplifies the ABC loading code.
Each render backend keeps track of a stack of BlenModes,
which are pushed and popped by 'core' as we render objects
in the displaay tree. For now, I've just implemented BlendMode.ADD,
which maps directly onto blend mode supported by each backend.
All other blend modes (besides 'NORMAL') will produce a warning
when we try to render using them. This may produce a very large amount
of log output, but it's simpler than emitting each warning only once,
and will help to point developers in the right direction when they
get otherwise inexplicable rendering issues (due to a blend mode
not being implemented).
The wgpu implementation is by far the most complicated, as we need
to construct a `RenderPipeline` for each possible
`(BlendMode, MaskState)`. I haven't been able to find any documentation
about the maximum supported number of (simultaneous) WebGPU render
pipelines - if this becomes an issue, we may need to register them
on-demand when a particular blend mode is requested.
A zero 'index' does not have a subsequent 'kind' field in the
written SWF. The 'index' field is not actually used for
true/false/undefined/null, so it can be anything as long
as it's non-zero.
Fixes#7098
Some SWF appear to have a PlaceObject3 tag with
`HAS_CACHE_AS_BITMAP` set, but the tag ends without
including the corresponding 'is_bitmap_cached' byte.
The implementation of `write_debug_id` was previously
not writing the header, causing a malformed SWF to be produced
whenever a `DebugId` tag was included.
* Remove LineStyle::color, instead using fill_style with
FillStyle::Color to indicate solid color.
* Store `flags` in the struct instead of separate bools/values.
* Add getters/setters for ease of use.
* Add builder-style methods for setting LineStyle properties.
* Fix misnamed ALLOW_CLOSE flag to NO_CLOSE.
I (Michael R. Welsh) assign to Ruffle LLC all rights, title, and
interest to copyrights of my personal contributions to Ruffle,
effective March 26, 2022.