Replace direct instatiations of `swf::Matrix` where only `tx` and
`ty` are specified, and other fields are default.
This results in a slightly more shorter, readable code.
A method called with `super` is always an instance method,
so we should be using `instance_scope` for consistency with
`call_property`. This fixes a bug where a method cannot
access static class members (via `getlex`) when called bia
`super.method()`
In several places, we read some data from a tag, and then pass
the original tag length to `resize_to_reader`. This is incorrect -
the provided length is used an an offset from the current position
in the reader, so we will extend past the end of the current tag if
we've already read some bytes.
In practice, this doesn't appear to cause any problems - AVM bytecode
has internal length fields, which end up ensuring that we will never
try to read past where the slice *should* end. However, if a `DoAbc`
tag is the last tag in the file, then we'll end up trying to use
`resize_to_reader` with an offset past the end of the movie.
This commit subtracts the number of already-read bytes from `tag_len`,
to ensure that we always construct a correctly-sized `SwfSlice`
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 `BitmapDataStorage` as its no longer necessary, and store
the bitmap canvas/context in `BitmapData` instead.
* Store the `Bitmap` RBGA buffer in the canvas backend. Previously
this was thrown away when converted to `ImageData`, but this
causes the glitchy pixels mentioned in:
https://github.com/ruffle-rs/ruffle/pull/6975#issuecomment-1127942520
`ImageData` does not copy the buffer passed to it, so store it
to keep it alive. See:
https://github.com/rustwasm/wasm-bindgen/issues/2445
Store just the XML declaration string itself, rather than the attributes
it consists of. Then simply return it in ActionScript's `XML.xmlDecl`
property, without using `quick_xml::Writer` at all. This also matches
Flash behavior by capturing the XML declaration as-is, preserving
whitespaces, quotes, casing etc.
Prior to this commit, executing frame scripts on a movie that doesn't have them for this frame, or didn't advance to a new frame, would cause the the movie to ignore all gotos until the next time it ran a frame script.
This PR implements the `URLLoader` class, allowing AVM2 scripts
to load data from a URL. This requires several other related
classes (`URLLoaderDataFormat`, `URLRequest`, `IOError`) to be
implemented as well.
Currently implemented:
* Fetching from URLs using the 'navigator' backend
* The `text` and `binary` data formats (which store data
in a `String` or `ByteArray` respectively)
* The `open`, `complete`, and `ioError` events
* The `bytesLoaded`, `bytesTotal`, and `data` properties
Not yet implemented:
* The HTTP and security events
* All of the properties of `IOError`
* The properties on `URLRequest` (besides `url`)
* The "variables" data format
This should be enough to get some basic uses of `URLLoader` working
(e.g. simple GET requests to a particular website).
Note that in Flash's `playerglobal`, the `URLLoader` class is just
a think wrapper around the more general `URLStream`. However,
implementing `URLStream` will require changes to `Navigator``
to support notifications when data arrives in the stream. When
that happens, we should be able to re-use a large amount of the
code in this PR.
This was added in fecb981 to workaround an issue with additive
alpha color transforms in Firefox. This seems to have been fixed
and is no longer necessary, so Firefox can use the normal code
path.
Guarantee bitmap data after decoding has the expected length for
the given width+height+format. This eases the burden from backends
to worry about this. Pad or truncate the data if it doesn't have
the expected size.