When decoding PNG/GIF data, convert the image to premultiplied
alpha so that it plays nicely with the renderer.
This applies to both dynamically loaded images and to PNG/GIF data
embedded inside a DefineBitsJPEG tag. This is in contrast to
DefineBitsLossless and DefineBitsJPEG tags w/ alpha, which are
already premultiplied in the SWF.
Also remove unnecessary clamps now that Rust defines casts as
saturating.
Fixes#6559.
These are *not* methods, because we cannot borrow both the update context and the loader at the same time. At least not without making loaders free-standing objects (`GcCell`s), which I don't want to do yet.
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.
The difference between element nodes and text nodes is very minor.
So instead of representing them by two distinct enum members, make
`XmlNodeData` a single unified struct that can represent both. A new
`node_type` field is introduced, in order to still distinguish
between element and text nodes. Also, Ruffle made some incorrect
assumptions, which are now corrected, including:
* Nodes can have any arbitrary `u8` type. This is resolved by the
introduction of the `node_type` field which is a `u8`.
* Text nodes can have children. This is resolved by simply not checking
for text nodes in `append_child` etc.
Make it a thin abstraction layer over either the `futures` or `wasm-bindgen-futures`
crates, as already done in `render/wgpu/src/uniform_buffer.rs`,
instead of a hand-made single-thread executor.
Ideally this would also be usable on desktop, but I didn't manage to
get `LocalPool` working with `winit` (it needs to post a task to the
`EventLoopProxy` as a wake procedure).
In both `FrameLabel` and `Scene`, we define multiple
'public property / private slot' pairs.
The public property has a getter which delegates to the private
property. There is no setter for the property, ensuring that
the private slot can only be modified from within Ruffle itself.
This PR adds a macro `define_indirect_properties` to abstract over
this pattern. Currently, it only supports the read-only property
pattern - however, it could be extended in the future to generate
a setter that invokes a caller-provided callback function.
This needs to be a macro (rather than a method) so that we can
generate a function with the property name hard-coded into it.
Using a closure that references an upvar will not work, since
`Method::from_builtin` requires a function pointer.
Document roots (a.k.a. `XML` objects) are very similar to regular
element nodes (a.k.a. `XMLNode` objects). The primary difference is
that `XML` objects return `null` for their `nodeName`. But this can
be changed too; Setting `xml.nodeName = "someName"` will make `XML`
objects behave much like `XMLNode`. Moreover, many checks in Ruffle
that refuse to operate on document roots were wrong, and actually
these should be accepted as normal element nodes.
Besides the functional corrections, this also simplifies the code.
This also slightly changes behavior: Previously `SwfMovie::from_data`
errors were propagated as `FetchError` and `display_root_movie_download_failed_message`
was called, offering the user to sidestep CORS by opening the SWF
in a new tab. But that wouldn't help, obviously, because no network
error is involved. Now, these errors are propagated as `InvalidSwf`,
and `display_root_movie_download_failed_message` is not called.
`core` already depends on the `instant` crate which abstracts
`std::instant::Instant` and polyfills it on Web. Use it to replace
`NavigatorBackend::time_since_launch` in order to make `NavigatorBackend`
a little smaller and more simple.
Previously there were 3 implementations of `LocaleBackend`:
`DesktopLocaleBackend`, `WebLocaleBackend` and `NullLocaleBackend`.
While `DesktopLocaleBackend`, `WebLocaleBackend` were identical,
`NullLocaleBackend` always returned a fixed date/time for tests
determinism.
Unify them in a single file, and use `cfg!(test)` and a new dedicated
`deterministic` feature to decide whether to mock date/time or not.
This should not cause any behavioral changes.
Mike Welsh